Spring feeding device and bagged spring string manufacturing equipment and method

Abstract

The invention provides a spring feeding device and bagged spring string manufacturing equipment and method.The spring feeding device comprises a compression assembly and a first pushing assembly, the compression assembly limits a first conveying channel, the first conveying channel extends in the transverse direction and comprises a compression section and a maintaining section, a spring is compressed on the compression section, and the maintaining section is used for maintaining the compressed spring; the spring is conveyed into the cloth bag in a compressed state at the holding section, the first pushing assembly comprises a first actuating piece, and the first actuating piece pushes a steel wire on one side of the spring to enable the spring to enter the holding section from the compression section in the first conveying channel and turn over before entering the holding section. According to the spring feeding device, compression and overturning of the springs can be integrated together, links needed in the spring feeding process are reduced, and the spring feeding device is beneficial to improving the manufacturing efficiency of bagged spring strings.

Description

Technical Field

[0001] The present application relates to the field of pocket springs, and in particular to a spring feeding device, a pocket spring string manufacturing device and a method. Background Art

[0002] Pocket springs are widely used in mattress and sofa production. The common form is that multiple pocket springs are connected into a spring string, and then multiple spring strings are bonded side by side to form a cushion core. The current mainstream pocket spring string production equipment usually first packs non-woven fabrics into bags longitudinally, then compresses the springs and sends them into the bags, and then confines the springs in independent bag chambers by transversely packing the bags to form a pocket spring string.

[0003] The efficiency of feeding the springs into the cloth bag has an important impact on the production efficiency of the bagged spring string. Since the upstream springs are often provided in a state where the axis is along the horizontal direction, in order to improve efficiency, in related technologies (such as Chinese patent 201410079173.7), the springs are often fed into the cloth bag in a state where the axis is along the horizontal direction. At this time, a conveying channel based on a conveyor belt can be used. The inlet of the conveying channel is connected to the upstream, and the cloth bag is put on the outlet of the conveying channel. The width of the conveying channel gradually decreases. The springs are compressed while moving along the conveying channel and are finally fed into the cloth bag. The springs entering the cloth bag are kept in a compressed state under the constraint of the cloth bag.

[0004] In some occasions, it is expected to deliver the spring into the cloth bag with the axis along the vertical state (for example, Chinese patent 202110923535.6). Due to the required large compression amount and other reasons, it is difficult to use a conveying channel with a gradually decreasing width for transportation. Therefore, the method of compression and then delivery is generally adopted. First, the spring is received from the upstream and compressed into place, and then the spring is transferred to the entrance of the conveying channel. Finally, the spring is sent into the cloth bag along the conveying channel. Before compression, the direction of the spring needs to be flipped so that the axis of the spring changes from horizontal to vertical. The efficiency of the entire process needs to be improved. Summary of the invention

[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a spring feeding device, a pocket spring string manufacturing device and a method, wherein the spring feeding device helps to improve the manufacturing efficiency of the pocket spring string.

[0006] According to the spring feeding device provided in the present application, it includes a compression component and a first pushing component, the compression component defines a first conveying channel, the first conveying channel extends in the transverse direction, and includes a compression section and a holding section. The spring is compressed in the compression section and is fed into the cloth bag in a compressed state in the holding section. The first pushing component includes a first actuator, and the first actuator pushes a steel wire on one side of the spring to make the spring enter the holding section from the compression section in the first conveying channel and flip over before entering the holding section.

[0007] The spring feeding device provided by the present application has at least the following technical effects: the spring is sent to the compression assembly in a transverse manner along the axis, and the first actuator moves in the transverse direction, thereby efficiently compressing the spring. At the same time, since the force applied by the first actuator deviates from the center of the spring, the force will generate a torque that drives the spring to flip, so that the spring flips at the end of the compression process, and the first actuator then pushes the flipped spring into the first conveying channel; therefore, the spring feeding device can integrate the compression and flipping of the spring, reducing the steps required in the spring feeding process, and the spring feeding device helps to improve the production efficiency of the bagged spring string.

[0008] According to some embodiments of the present application, the compression assembly also includes a first baffle, which is located at the end of the compression section and connected to the retaining section, the first actuator pushes the spring toward the first baffle to compress the spring, the first actuator applies a force to one side of the spring, and the first baffle applies a force to the other side of the spring to flip the spring.

[0009] According to some embodiments of the present application, the first baffle includes a first inclined surface, and the first inclined surface enables the first conveying channel to transition from a compression section with a higher height to the retaining section with a lower height.

[0010] According to some embodiments of the present application, avoidance grooves are provided on the first baffle plate and the retaining segment, and the avoidance grooves are used to avoid the movement path of the first actuator.

[0011] According to some embodiments of the present application, the compression assembly includes a second baffle, which is arranged at the entrance of the first delivery channel and around the compression section, and is used to limit the radial deformation of the spring during the compression of the spring.

[0012] According to some embodiments of the present application, the first pushing assembly includes a transmission mechanism consisting of a sprocket and a chain, the first actuator is rotatably disposed on the chain, and the first pushing assembly also includes a third baffle plate, which is used to limit the rotation of the first actuator during the process of pushing the spring.

[0013] According to some embodiments of the present application, the first actuator includes a push block and a clamping plate, the push block is used to push the spring, the clamping plate is rigidly connected to the push block and rotates around a hinge point together, and in the process of pushing the spring, the third baffle plate resists the clamping plate to prevent the push block from rotating.

[0014] According to some embodiments of the present application, the card plate is provided with a card slot, and a limiting shaft is provided on the chain. The card slot is clamped on the limiting shaft to further limit the rotation of the push block. After the spring enters the retaining section, the card plate is no longer restricted by the third baffle, so that the push block rotates around the hinge point. At the same time, the card slot disengages from the limiting shaft, so that the first actuator disengages from the spring and continues to move in a cycle with the chain.

[0015] According to some embodiments of the present application, the spring feeding device also includes a retaining assembly and a second pushing assembly, the retaining assembly defines a second conveying channel, the second conveying channel extends in the longitudinal direction and coincides with the end of the first conveying channel, the outlet of the second conveying channel is docked with the cloth bag, and the second pushing assembly includes a second actuator, and the second actuator can move in the longitudinal direction to deliver the spring in the second conveying channel into the cloth bag.

[0016] The pocket spring string manufacturing equipment provided in the present application includes the spring string feeding device provided in the present application.

[0017] The spring feeding method provided in the present application includes receiving a spring, wherein the axis of the spring is along the transverse direction; compressing the spring along the transverse direction and pushing it into a first conveying channel, and applying an eccentric thrust to the spring during the pushing process so that the spring flips during the pushing process.

[0018] According to some embodiments of the present application, the spring is pushed out of the first conveying channel in the longitudinal direction, and the spring is conveyed into the cloth bag along the second conveying channel connected to the first conveying channel.

[0019] The bagged spring string manufacturing equipment provided in the present application includes the spring feeding device provided in the present application, and the spring feeding method provided in the present application can be implemented by the spring feeding device provided in the present application. Therefore, the bagged spring string manufacturing equipment and the spring feeding method correspondingly have the beneficial effects provided by the spring feeding device, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide further understanding of the technical solution disclosed in the present application and constitute a part of the specification. Together with the embodiments disclosed in the present application, they are used to explain the technical solution disclosed in the present application and do not constitute a limitation on the technical solution disclosed in the present application.

[0021] Figure 1 It is a structural schematic diagram of a spring feeding device according to an embodiment of the present application;

[0022] Figure 2 It is a structural schematic diagram of a spring feeding device according to an embodiment of the present application;

[0023] Figure 3is a schematic diagram of the principle of the first actuating member of the embodiment of the present application pushing the spring into the first conveying channel;

[0024] Figure 4 is a schematic diagram of the principle of the first actuating member pushing the spring into the first delivery channel in some other embodiments of the present application;

[0025] Figure 5 It is a structural schematic diagram of a pocket spring manufacturing device according to an embodiment of the present application.

[0026] Reference numerals:

[0027] Spring feeding device 1000, compression assembly 1100, first conveying channel 1110, first baffle 1120, first inclined surface 1121, second baffle 1130, bottom plate 1140, avoidance groove 1150, first retaining member 1160, first pushing assembly 1200, first actuating member 1210, push block 1211, second inclined surface 12111, clamping plate 1212, clamping groove 12121, sprocket 1220, chain 1230, third baffle 1240, limiting ring 1250, limiting shaft 1260, driver 1270, retaining assembly 1300, second pushing assembly 1400;

[0028] Spring feeding device 2000, suturing device 3000, turning device 4000;

[0029] Spring 9000. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0031] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0035] In the pocket spring string, different packaging methods have different preferences for the direction of the spring when it is fed in. For welding packaging, since the welding knife can clamp the welding part of the bag vertically, the axis of the spring fed in can be either vertical or horizontal. Since the axis of the spring fed from the upstream coiling machine is horizontal, the spring is basically fed in horizontally.

[0036] For sewing packaging, since the springs fed in a horizontal state cannot be compressed vertically, they will stretch the bag vertically, and the degree of stretching of the bag is uncontrolled (for example, when using variable diameter springs), which will have a negative impact on the quality and consistency of the suture. In the related art, the springs are more inclined to be fed in a vertical state. In this case, the springs remain flattened by the pressing plate during the packaging process, which will not cause excessive tension in the bag, and the force on the bag is more consistent.

[0037] However, in the related art, the vertical spring needs to be fed in multiple steps. First, the spring needs to be received from the upstream and turned over so that the axis of the spring changes from the horizontal direction to the vertical direction. Then, the spring needs to be compressed along the axis of the spring. Next, the compressed spring needs to be transferred to the pushing position. Finally, the spring is pushed into the bag by the pushing member. This makes it difficult to improve the production efficiency of the bagged spring string.

[0038] To this end, the present application provides a spring string feeding device to improve the spring feeding efficiency, thereby improving the production efficiency of the bagged spring string.

[0039] The present application further provides a bagged spring string manufacturing device based on the spring string feeding device of the present application, and a spring feeding method that can be implemented using the spring string feeding device of the present application.

[0040] Reference Figure 1 , Figure 2 and Figure 3 According to the spring feeding device 1000 provided in the embodiment of the present application, it includes a compression assembly 1100 and a first pushing assembly 1200. The compression assembly 1100 defines a first conveying channel 1110. The first conveying channel 1110 extends in the transverse direction and includes a compression section and a holding section. The spring is compressed in the compression section and is fed into the cloth bag in a compressed state in the holding section. The first pushing assembly 1200 includes a first actuator 1210. The first actuator 1210 pushes a steel wire on one side of the spring to make the spring enter the holding section from the compression section in the first conveying channel 1110 and flip it before entering the holding section.

[0041] Among them, the height of the first conveying channel 1110 is smaller than the diameter of the spring, and the first actuator 1210 is located on one side of the first conveying channel 1110 in the vertical direction. The first actuator 1210 can reciprocate in the horizontal direction to compress the spring 9000 in the horizontal direction and push it into the first conveying channel 1110. The first actuator 1210 is used to apply an eccentric force to the spring 9000 to make the spring 9000 flip over during the pushing process.

[0042] The spring 9000 is sent to the compression assembly 1100 in a transverse manner along the axis, and the first actuator 1210 moves in the transverse direction. Since the height of the first conveying channel 1110 is smaller than the diameter of the spring, the spring 9000 cannot enter the first conveying channel 1110 in the current posture. Under the thrust of the first actuator 1210 on the spring 900 and the thrust of the compression assembly 1100 on the spring 9000, the spring 9000 is compressed along the axis.

[0043] At the same time, since the force applied by the first actuating member 1210 deviates from the center of the spring 9000, the force will generate a torque that drives the spring 9000 to flip, so that the spring 9000 flips at the end of the compression process.

[0044] Since the first actuator 1210 actively moves laterally and the compression assembly 1100 passively blocks and supports the spring 9000 , after flipping, the spring 9000 will be sleeved on the first actuator 1210 , and the first actuator 1210 will then push the flipped spring into the first conveying channel 1110 .

[0045] Therefore, the spring feeding device can integrate the compression and flipping of the spring 9000, reduce the steps required in the spring feeding process, meet the needs of vertically feeding the spring 9000, and the spring feeding device 1000 helps to improve the production efficiency of the bagged spring string.

[0046] Correspondingly, the spring feeding method provided by the present application comprises at least the following steps:

[0047] Step S110: receiving a spring 9000, wherein the axis of the spring 9000 is in the horizontal direction.

[0048] Step S120: compress the spring 9000 in the transverse direction and push it into the first conveying channel 1110 , and apply an eccentric thrust to the spring 9000 during the pushing process, so that the spring 9000 turns over during the pushing process.

[0049] With reference to the description of the spring feeding device, the spring feeding method can also improve the production efficiency of the pocket spring string, which will not be described in detail here.

[0050] It should be pointed out that the torque comes from the thrust of the first actuator 1210 on the spring 900 and the thrust of the compression assembly 1100 on the spring 9000. The greater the vertical distance between the two forces, the greater the torque generated, which makes it easier for the spring 9000 to flip, making the spring feeding device 1000 run more smoothly.

[0051] To this end, optionally, the compression assembly 1100 also includes a first baffle 1120, which is located at the end of the compression section and connected to the retaining section, and the first actuator 1210 pushes the spring 9000 toward the first baffle 1120 to compress the spring 9000, and the first actuator 1210 applies a force to one side of the spring 900, and the first baffle 1120 applies a force to the other side of the spring to flip the spring 9000.

[0052] For example, in some embodiments, referring to Figure 3 The first actuator 1210 is located on the lower side, and the first baffle 1120 is located on the upper side. The width of the first actuator 1210 is smaller than the diameter of the spring 9000, and the contact portion between the first actuator 1210 and the spring 9000 is close to the lower side, while the width of the first baffle 1120 is smaller than the diameter of the spring 9000, and the contact portion between the first baffle 1120 and the spring 9000 is close to the upper side. Both forces are in the counterclockwise direction, so the combined force generates a torque that rotates the spring 9000 counterclockwise.

[0053] Preferably, in order to guide the spring 9000 into the first delivery channel 1100, refer to Figure 3 In some embodiments, the first baffle 1120 includes a first inclined surface 1121, and the first inclined surface 1121 allows the first conveying channel 1100 to transition from a high compression section to a low holding section. Even if the spring 9000 is not fully compressed in place during the flipping process, or the spring 9000 has a certain rebound during the flipping process, the spring 9000 can complete the remaining compression process under the guidance of the first inclined surface 1121, thereby smoothly entering the first conveying channel 1110, so that the spring feeding device 1000 has better fault tolerance and adaptability.

[0054] In order to limit the rebound of the spring 9000 and also to prevent the spring wire at the end of the spring 9000 from detaching from the first actuator 1210, optionally, the first actuator 1210 includes a limiting protrusion, which is used to limit the spring 9000 after vertical flipping.

[0055] For example, refer to Figure 3 The limiting protrusion includes a second inclined surface 12111, and the second inclined surface 12111 can apply a force to the spring wire of the spring 9000 that is obliquely directed to the side where the first actuator 1210 is located. Figure 3 In the illustrated embodiment, the force is applied obliquely downward, thereby preventing the spring wire from slipping off the first actuating member 1210 .

[0056] Understandably, Figure 3 Only one layout of the first baffle 1120 and the first actuator 1210 is shown as an example. Without departing from the design concept of the present application, the first baffle 1120 and the first actuator 1210 can also adopt other layouts, and the present application does not impose any restrictions on this.

[0057] For example, Figure 4 Another layout is shown by way of example. On the one hand, this layout shows the situation that the first baffle 1120 does not have the first inclined surface 1121. Although the effect of this design is slightly worse than that of the first baffle 1120 with the first inclined surface 1121, it can also meet the basic requirement of the present application to compress and flip the spring 9000 and feed it into the first conveying channel 1110. On the other hand, in this layout, the first actuator 1210 is on the upper side and the first baffle 1120 is on the lower side, which will not affect the spring 9000 from entering the first conveying channel 1110. That is to say, the spring feeding device 1000 can be arranged according to the spring feeding device 2000 (refer to the upstream) of the spring feeding device 2000. Figure 5 ) docking method, and flexibly adjust the layout of the first actuator 1210.

[0058] For the spring 9000 with a high compression ratio, bending deformation may easily occur during rapid compression. In order to ensure compression efficiency while taking reliability into consideration, in some embodiments, the compression assembly 1100 includes a second baffle 1130. The second baffle 1130 is arranged at the entrance of the first delivery channel 1110 and is located around the compression section to limit the radial deformation of the spring during the compression process.

[0059] In some embodiments, the second baffle 1130 extends in the lateral direction. The second baffle 1130 is disposed at the entrance of the first delivery channel 1110 . The second baffle 1130 is used to limit the spring 9000 in the radial direction.

[0060] Reference Figure 1For example, the second baffle 1130 can be designed in a split type, and three second baffles 1130 surround the spring 9000, wherein the upper second baffle 1130 is indicated by a dotted line to show the spring 9000 and the first actuator 1210 located below. The end of the second baffle 1130 close to the upstream is tilted outward, thereby helping to guide the spring 9000 into between the second baffles 1130. Of course, the second baffle 1130 can also be designed in an integrated type, and the present application does not limit this.

[0061] Optionally, refer to Figure 2 and Figure 1 In some embodiments, the compression assembly 1100 further includes a bottom plate 1140, which is used to receive the spring 9000 from below to prevent the spring 9000 from accidentally falling. The bottom plate 1140 and the second baffle 1130 jointly limit the spring 9000 in the radial direction.

[0062] It should be pointed out that the bottom plate 1140 is not necessary. Since the spring feeding device 2000 generally uses a spring seat with a magnetic suction function to convey the spring 9000, the spring 9000 will not fall even if the bottom plate 1140 is not provided. In some occasions, such as when the first actuator 1210 is arranged on the upper side, the spring seat of the spring feeding device 2000 can also play a role similar to that of the bottom plate 1140.

[0063] It is understandable that each part of the compression assembly 1100 needs to avoid the movement path of the first actuator 1210 . Optionally, an avoidance groove 1150 is provided on the first baffle 1120 and the retaining section, and the avoidance groove 1150 is used to avoid the movement path of the first actuator 1210 .

[0064] The avoidance groove 1150 can be constructed in different ways. For example, Figure 1 and Figure 2 First, the two bottom plates 1140 are arranged at intervals, and an avoidance groove 1150 is formed between the bottom plates 1140, so that the first actuator 1210 is allowed to extend from the avoidance groove 1150 and push the spring 9000 to move laterally; secondly, the first baffle plate 1120 is also provided with an avoidance groove 1150, and the first actuator 1210 passes through the first baffle plate 1120 from the avoidance groove 1150, so that the first baffle plate 1120 and the first actuator 1210 jointly limit the spring 9000 to prevent the spring 9000 from falling off the first actuator 1210; finally, Figure 1 and Figure 2In the illustrated embodiment, the compression assembly 1100 includes a first retaining member 1160, which defines a first delivery channel 1110. The first retaining member 1160 is also provided with an avoidance groove 1150 connected to the first delivery channel 1110 so that the first actuator 1210 can enter and leave the first delivery channel 1110. The avoidance grooves 1150 together play an avoidance role, meeting the route requirements of the first actuator 1210 to reciprocately compress and deliver the spring 9000.

[0065] The first actuator 1210 can adopt different reciprocating motion modes. For example, optionally, the first actuator 1210 can push the spring 9000 to the target position of the first conveying channel 1110, and then retreat along the original path horizontally. However, during the retreat process, the first actuator 1210 hinders the conveying of the next spring 9000, so it is necessary to wait for the first actuator 1210 to retreat to the initial position before the spring feeding device 1000 can receive a new spring 9000 from the spring feeding device 2000, and it is impossible to realize the parallel progress of various links, which obviously leads to a decrease in the feeding efficiency of the spring 9000.

[0066] To this end, optionally, the movement route of the first actuator 1210 may include an actuation section and a reflux section, the first actuator 1210 pushes the spring 9000 in the actuation section, and the first actuator 1210 avoids the conveying route of the spring 9000 and resets in the reflux section.

[0067] That is to say, in the reflux section, the conveying routes of the first actuator 1210 and the spring 9000 are staggered, so the spring feeding device 1000 can be provided with multiple first actuators 1210. During the reflux process of the current first actuator 1210, the next first actuator 1210 can simultaneously compress and convey the next spring 9000, making the feeding of the spring 9000 more efficient.

[0068] Specifically, the first pushing assembly 1200 includes a first driving mechanism for driving the first actuator 1210. After the spring 9000 is pushed into place, the first driving mechanism can drive the first actuator 1210 to vertically exit the first conveying channel 1110, thereby being offset from the conveying route of the spring 9000; at the same time, the first driving mechanism also drives the first actuator 1210 to retreat laterally, and then reset vertically after the lateral movement is into place.

[0069] For example, refer to Figure 2 and Figure 3 In some embodiments, the first driving mechanism includes a transmission mechanism consisting of a sprocket 1220 and a chain 1230, the first actuator 1210 is rotatably disposed on the chain 1230, and the first pushing assembly 1200 also includes a third baffle, which is used to limit the rotation of the first actuator 1210 during the process of pushing the spring.

[0070] The sprocket 1220 is driven to rotate by the driver 1270, so that the chain 1230 drives the first actuator 1210 to circulate. In the actuation section, the limiter locks the first actuator 1210, so that the first actuator 1210 stands up and applies force to the spring 9000; in the return section, the limiter releases the first actuator 1210, and as the chain 1230 moves, the first actuator 1210 is rotated by force, so as to exit the first conveying channel 1110; then the chain 1230 returns and resets with the first actuator 1210, and the limiter locks the first actuator 1210 again, so that the first actuator 1210 is in a state suitable for pushing the spring 9000.

[0071] For example, refer to Figure 2 The limiting member includes a third baffle plate 1240 and a limiting ring 1250. The third baffle plate 1240 extends along the actuating section, and the limiting ring 1250 is arranged on the sprocket 1220 located upstream of the actuating section. During the movement along the actuating section, the third baffle plate 1240 keeps in contact with the first actuating member 1210, thereby achieving a locking effect. During the process of the first actuating member 1210 rising into the actuating section, the limiting ring 1250 contacts the first actuating member 1210, thereby preventing the first actuating member 1210 from tipping over under the action of gravity.

[0072] In order to improve the contact effect between the first actuator 1210 and the limit member, optionally, the first actuator 1210 includes a push block 1211 and a clamping plate 1212, the push block 1211 is used to push the spring 9000, the clamping plate 1212 is rigidly connected to the push block 1211 and rotates around the hinge point together, and in the process of pushing the spring, the third baffle plate resists the clamping plate 1212 to prevent the push block 1211 from rotating.

[0073] For example, refer to Figure 2 In some embodiments, the push block 1211 and the card plate 1212 form an angle of approximately 90°. In the actuating section, the card plate 1212 extends laterally, thereby increasing the contact area between the first actuating member 1210 and the third baffle 1240 and improving the locking effect, while the push block 1211 extends vertically to push the spring 9000.

[0074] It is understandable that the length of the push block 1211 ( Figure 3 The diameter of the spring 9000 (indicated by L) needs to be smaller than the diameter of the spring 9000, so that the flipped spring 9000 can be mounted on the push block 1211 without being lifted up by the push block 1211. In addition, the rotation path of the push block 1211 does not interfere with the spring 9000, specifically, does not interfere with the flipped spring 9000, so that it can normally exit the first conveying channel 1110 through rotation.

[0075] In addition, optionally, the card plate 1212 is provided with a card slot 12121, and a limiting shaft 1260 is provided on the chain 1230. The card slot 12121 is clamped on the limiting shaft 1260 to further limit the rotation of the push block 1211. After the spring enters the retaining section, the card plate 1212 is no longer restricted by the third baffle, so that the push block 1211 rotates around the hinge point. At the same time, the card slot 12121 disengages from the limiting shaft 1260, so that the first actuator 1210 disengages from the spring and continues to move in a cycle with the chain 1230.

[0076] It is understandable that the clamping plate 1212 is formed with a clamping slot 12121, the limiting member includes a limiting shaft 1260, the limiting shaft 1260 is arranged on the chain 1230, the limiting shaft 1260 is located upstream of the first actuating member 1210, and the clamping slot 12121 is used to hook the limiting shaft 1260. The limiting shaft 1260 can play an auxiliary limiting role.

[0077] It should be emphasized that in Figure 2 to Figure 1 In the illustrated embodiment, the present application takes the sprocket 1220 and the chain 1230 as an example to introduce one construction method of the actuating section and the return section, but the design that the spring feeding device 1000 can adopt is not limited to this.

[0078] For example, a conveyor belt may be used to replace the chain 1230 to realize the cyclic reciprocating motion of the first actuator 1210. For another example, a linear motor may be used to drive the first actuator 1210 to reciprocate in the lateral direction, and the first actuator 1210 avoids the conveying route of the spring 9000 by telescoping or other means. Other feasible construction methods are not described in detail here.

[0079] After the spring 9000 is compressed, it is necessary to send the spring 9000 to the cloth bag. In some related technologies, the compressed spring 9000 needs to be transferred before it can be transported, which also leads to a decrease in efficiency.

[0080] To this end, optionally, refer to Figure 1 The spring feeding device 1000 also includes a retaining assembly 1300 and a second pushing assembly 1400. The retaining assembly 1300 defines a second conveying channel. The second conveying channel extends in the longitudinal direction and coincides with the end of the first conveying channel 1110. The outlet of the second conveying channel is connected to the cloth bag. The second pushing assembly 1400 includes a second actuator that can move in the longitudinal direction to deliver the spring 9000 in the second conveying channel into the cloth bag in a compressed state.

[0081] By docking the second conveying channel with the first conveying channel 1110, the spring 9000 leaving the first conveying channel 1110 directly enters the second conveying channel, eliminating the transfer process of the spring 9000, which helps to improve the feeding efficiency.

[0082] Correspondingly, the spring feeding method may further include step S130: pushing the spring 9000 out of the first conveying channel 1110 in the longitudinal direction, and feeding the spring 9000 into the cloth bag along the second conveying channel connected to the first conveying channel 1110 .

[0083] The pocket spring string manufacturing device of the present application includes the spring feeding device 1000 of the present application, and therefore also has the beneficial effects provided by the spring feeding device 1000.

[0084] For example, refer to Figure 5 In some embodiments, the pocket spring string manufacturing device packages the spring 9000 by sewing, and the pocket spring string manufacturing device also includes a spring feeding device 2000, a cloth feeding device (not shown in the figure), a sewing device 3000 and a flipping device 4000.

[0085] The spring feeding device 2000 is connected between the spring coiling machine and the spring loading device 1000. The spring 9000 made by the spring coiling machine is received by the spring seat of the spring feeding device 2000 and sent to the spring loading device 1000 with the axis along the horizontal state.

[0086] The cloth feeding device provides a cloth bag to the sewing device 3000 , and the cloth bag has an opening in the longitudinal direction. The spring 9000 compressed by the spring feeding device 1000 is fed into the cloth bag along the longitudinal direction and is kept in a compressed state by the pressing plate of the sewing device 3000 .

[0087] The sewing device 3000 sews in the transverse direction, thereby encapsulating the spring 9000 into the bag chamber of the cloth bag to form a bagged spring string. After sewing, the flipping device 4000 drives the spring 9000 to flip, so that the axis of the spring 9000 is changed to be in the transverse direction again. The spring 9000 rebounds in the transverse direction, thereby propping up the bag chamber, completing the production process of the bagged spring string.

[0088] Of course, it is not limited to the stitched bag spring string manufacturing equipment. As long as the bag spring string manufacturing equipment has the need to convey the springs 9000 in a vertical state, the spring feeding device 1000 of the present application can be used and exert corresponding beneficial effects.

[0089] In some selectable embodiments, the function / operation mentioned in the block diagram may not occur in the order mentioned in the operation diagram. For example, depending on the function / operation involved, the two boxes shown in succession can actually be executed substantially simultaneously or the boxes can sometimes be executed in reverse order. In addition, the embodiment presented and described in the flow chart of the application is provided by way of example, for the purpose of providing a more comprehensive understanding of technology. The disclosed method is not limited to the operation and logic flow presented herein. Selectable embodiments are expected, wherein the order of various operations is changed and the sub-operation of a part described as a larger operation is performed independently.

[0090] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A spring feeding device, characterized in that: include: A compression assembly, wherein the compression assembly defines a first conveying channel, the first conveying channel extends in a transverse direction and includes a compression section and a holding section, the spring is compressed in the compression section, and is conveyed into the cloth bag in a compressed state in the holding section; The first pushing assembly includes a first actuating member, and the first actuating member pushes a steel wire on one side of the spring to make the spring enter the holding section from the compression section in the first conveying channel and flip over before entering the holding section.

2. The spring feeding device according to claim 1, characterized in that: The compression assembly also includes a first baffle, which is located at the end of the compression section and connected to the retaining section. The first actuator pushes the spring toward the first baffle to compress the spring. The first actuator applies a force to one side of the spring, and the first baffle applies a force to the other side of the spring to flip the spring.

3. The spring feeding device according to claim 2, characterized in that: The first baffle includes a first inclined surface, and the first inclined surface enables the first conveying channel to transition from a compression section with a higher height to the holding section with a lower height.

4. The spring feeding device according to claim 3, characterized in that: The first baffle plate and the retaining section are provided with avoidance grooves, and the avoidance grooves are used to avoid the movement path of the first actuating member.

5. The spring feeding device according to claim 1, characterized in that: The compression assembly includes a second baffle, which is arranged at the entrance of the first delivery channel and around the compression section, and is used to limit the radial deformation of the spring during the compression of the spring.

6. The spring feeding device according to claim 1, characterized in that: The first pushing assembly includes a transmission mechanism consisting of a sprocket and a chain, the first actuating member is rotatably arranged on the chain, and the first pushing assembly also includes a third baffle plate, and the third baffle plate is used to limit the rotation of the first actuating member during the process of pushing the spring.

7. The spring feeding device according to claim 6, characterized in that: The first actuating member includes a push block and a clamping plate, the push block is used to push the spring, the clamping plate is rigidly connected to the push block and rotates around a hinge point together, and in the process of pushing the spring, the third baffle plate resists the clamping plate to prevent the push block from rotating.

8. The spring feeding device according to claim 7, characterized in that: The card plate is provided with a card slot, and a limit shaft is provided on the chain. The card slot is clamped on the limit shaft to further limit the rotation of the push block. After the spring enters the retaining section, the card plate is no longer restricted by the third baffle, so that the push block rotates around the hinge point. At the same time, the card slot is disengaged from the limit shaft, so that the first actuator is disengaged from the spring and continues to move in a cycle with the chain.

9. The spring feeding device according to claim 1, characterized in that: The spring feeding device also includes a holding assembly and a second pushing assembly, wherein the holding assembly defines a second conveying channel, the second conveying channel extends in the longitudinal direction and coincides with the end of the first conveying channel, the outlet of the second conveying channel is docked with the cloth bag, and the second pushing assembly includes a second actuator, which can move in the longitudinal direction to deliver the spring in the second conveying channel into the cloth bag in a compressed state.

10. A bag spring string manufacturing device, characterized in that: The bagged spring string manufacturing equipment comprises the spring string feeding device according to any one of claims 1 to 9.

11. A spring feeding method, characterized in that: The spring feeding method comprises: A receiving spring, wherein the axis of the spring is in the transverse direction; The spring is compressed along the transverse direction and pushed into the first conveying channel, and an eccentric thrust is applied to the spring during the pushing process so that the spring turns over during the pushing process.

12. The spring feeding method according to claim 11, characterized in that: The spring is pushed out of the first conveying channel in the longitudinal direction, and the spring is conveyed into the cloth bag along the second conveying channel connected to the first conveying channel.

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