A winding needle insertion and extraction mechanism and winding equipment

Abstract

The present application provides a winding needle plugging and unplugging mechanism and a winding device, comprising a first plugging and unplugging needle assembly, a second plugging and unplugging needle assembly, a transmission switching assembly and a driving member, wherein the driving member is connected to the first plugging and unplugging needle assembly and the second plugging and unplugging needle assembly through the transmission switching assembly; when the transmission switching assembly is in the first state, the driving member is transmission-connected to the first plugging and unplugging needle assembly; when the transmission switching assembly is in the second state, the driving member is transmission-connected to the second plugging and unplugging needle. With such a configuration, only one driving member is used to output power, and the power of the driving member can be alternately transmitted to the first plugging and unplugging needle assembly and the second plugging and unplugging needle assembly through the state switching of the transmission switching assembly. Through the corresponding actions of the first plugging and unplugging needle assembly and the second plugging and unplugging needle assembly, the first half needle and the second half needle on the winding station and the unloading station are plugged and unplugged respectively. The structural design is simple and reliable, occupies little space, and is conducive to saving energy consumption and costs.

Description

Technical Field

[0001] The present application relates to the technical field of battery core processing, and in particular to a winding needle plugging and unplugging mechanism and a winding device. Background Art

[0002] In the prior art, the winding needle of the three-station winding head includes a cylinder and two half needles (the first half needle and the second half needle) disposed in the cylinder, and both half needles can be slidably connected to the cylinder along the axial direction of the cylinder. When the winding needle flows to the winding station, the second half needle extends to send the diaphragm to the second half needle, and then the first half needle extends to clamp the diaphragm between the two half needles; when the winding needle flows to the unloading station, the first half needle of the winding needle is first pulled out, and then the second half needle of the winding needle is pulled out to complete the unloading of the battery cell.

[0003] In the prior art, in order to realize the independent sliding of the two half needles of the winding needle, three independent plug-in and pull-out needle assemblies are required. Two plug-in and pull-out needle assemblies are arranged at the unloading station to respectively perform plug-in and pull-out operations on the two half needles at the unloading station (i.e., first pull out the first half needle, then pull out the second half needle, and then extend the second half needle after the battery cell unloading is completed), and one plug-in and pull-out needle assembly is arranged at the winding station to perform the plug-in operation on one half needle (since the second half needle completes the extension operation at the unloading station, only the first half needle needs to be plugged in at the winding station). However, the three independent plug-in and pull-out needle assemblies require three servo control systems, which makes the entire winding equipment structure complicated, occupies a large space, and consumes a large amount of energy, which is not conducive to cost control. Summary of the invention

[0004] In view of this, the present application provides a winding needle insertion and extraction mechanism and a winding device, which can save the number of servo control systems used, simplify the structure, and save energy consumption.

[0005] In order to achieve the above objectives, this application provides the following technical solutions:

[0006] A winding needle plugging and pulling mechanism comprises a first plugging and pulling needle assembly, a second plugging and pulling needle assembly, a transmission switching assembly and a driving member, wherein the driving member is connected to the first plugging and pulling needle assembly and the second plugging and pulling needle assembly through the transmission switching assembly; when the transmission switching assembly is in a first state, the driving member is transmission-connected to the first plugging and pulling needle assembly, and can drive the first plugging and pulling needle assembly to insert the first half needle at a winding station, and to pull out the first half needle at a blanking station; when the transmission switching assembly is in a second state, the driving member is transmission-connected to the second plugging and pulling needle assembly, and can drive the second plugging and pulling needle assembly to insert and pull out the second half needle at the blanking station.

[0007] Optionally, the first needle plugging and pulling assembly performs the needle insertion operation on the first half needle at the winding station, and performs the needle pulling operation on the first half needle connection at the unloading station through the same structure or different structures; and / or, the second needle plugging and pulling assembly performs the needle pulling operation and the needle insertion operation on the second half needle at the unloading station through the same structure or different structures.

[0008] Optionally, the first plug-in needle assembly comprises:

[0009] The first action member, when the transmission switching assembly is in the first state, the driving member is in transmission connection with the first action member and can drive the first action member to perform the first action and the second action;

[0010] A needle insertion structure is arranged on the first action member, and when the first action member performs a first action, the first half needle at the winding station is inserted through the needle insertion structure;

[0011] The needle pulling structure is arranged on the first actuating member. When the first actuating member performs the second action, the needle insertion structure is separated from the first half needle at the winding station. The first actuating member is connected to the first half needle at the unloading station through the needle pulling structure and performs a needle pulling operation on it.

[0012] Optionally, the second plug-in pin assembly comprises:

[0013] The second action member, when the transmission switching assembly is in the second state, the driving member is in transmission connection with the second action member and can drive the second action member to perform the third action and the fourth action;

[0014] The needle insertion and extraction structure is arranged on the second action piece. When the second action piece performs the third action and the fourth action, the needle insertion and extraction structure is connected with the second half needle at the blanking station to perform needle extraction and needle insertion operations.

[0015] Optionally, the first action and the fourth action are arranged to be close to the reel in the axial direction of the reel, and the second action and the third action are arranged to be away from the reel in the axial direction of the reel.

[0016] Optionally, the driving member can output a rotational motion and is respectively connected to the first actuating member and the second actuating member through a first linear transmission component and a second linear transmission component. The first linear transmission component and the second linear transmission component can convert the rotational motion into a linear reciprocating motion, so that the driving member can respectively drive the first actuating member and the second actuating member to move back and forth in the axial direction of the reel.

[0017] Optionally, the first linear transmission assembly and / or the second linear transmission assembly comprises a crank slider structure and a first guide structure;

[0018] Among them, the transmission switching component and the first acting member are connected via the crank slider structure of the first linear transmission component, and the first guide structure of the first linear transmission component can guide the first acting member in the axial direction of the reel; the transmission switching component and the second acting member are connected via the crank slider structure of the second linear transmission component, and the first guide structure of the second linear transmission component can guide the first acting member in the axial direction of the reel.

[0019] Optionally, the transmission switching component includes:

[0020] Two electromagnetic clutches, both of which are in transmission connection with the driving member, and are respectively in transmission connection with the first linear transmission assembly and the second linear transmission assembly;

[0021] Alternatively, two one-way bearing structures or ratchet structures with opposite transmission directions are both transmission-connected to the driving member, and are transmission-connected to the first linear transmission assembly and the second linear transmission assembly, respectively.

[0022] Optionally, the needle pulling structure includes a limiting member, which is elastically connected to the first actuating member and has an unlocking slope and a limiting surface. When the first actuating member is close to the reel, the tail of the first half needle at the unloading station can slide on the unlocking slope to pass over the limiting member; when the limiting member is away from the reel, the limiting surface can be against the tail of the first half needle at the unloading station.

[0023] Optionally, the needle removal structure comprises:

[0024] A mounting seat connected to the first actuating member;

[0025] An elastic member connected to the limiting member and the mounting seat so as to drive the limiting member to protrude from the mounting seat;

[0026] The second guiding structure is connected to the limiting member and the mounting seat, and can guide the limiting member along the radial direction of the first half needle.

[0027] Optionally, a mounting groove is provided on the mounting seat, and the limiting member is slidably connected in the mounting groove and can protrude from and be hidden in the mounting groove.

[0028] Optionally, the needle pulling structure includes a telescopic part, which is movably connected to the first actuating part. When the first actuating part approaches the reel, the telescopic part retracts so that the tail of the first half needle at the unloading station can pass over the telescopic part; when the telescopic part moves away from the reel, the telescopic part extends so that the tail of the first half needle at the unloading station can collide with the telescopic part.

[0029] Optionally, the needle insertion structure includes a push plate, which is disposed on the first actuating member, and the push plate at least partially overlaps with an axial projection of the tail of the first half needle at the winding station.

[0030] Optionally, a push-pull groove is provided at the tail of the second half needle, and the needle insertion and extraction structure includes a push-pull plate, which is arranged on the second actuating member; when the second half needle is in the unloading station, the push-pull plate is located in the push-pull groove and limits the push-pull groove in the axial direction of the reel.

[0031] A winding device comprises the winding needle inserting and extracting mechanism as described in any one of the above items.

[0032] The needle winding and plugging mechanism and winding equipment provided by the present application only use one driving member to output power. By switching the state of the transmission switching assembly, the power of the driving member can be alternately transmitted to the first plugging and pulling needle assembly and the second plugging and pulling needle assembly. Through the corresponding actions of the first plugging and pulling needle assembly and the second plugging and pulling needle assembly, the first half needle and the second half needle on the winding station and the unloading station are plugged in and out respectively. The structural design is simple and reliable, occupies little space, and is conducive to saving energy consumption and costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0034] Figure 1 It is a structural diagram of a winding needle insertion and extraction mechanism shown in some embodiments;

[0035] Figure 2 A structural diagram of a first action member and a second action member shown in some embodiments;

[0036] Figure 3 A structural diagram of a winding needle shown in some embodiments;

[0037] Figure 4 It is a schematic diagram of the principle of the pin-roll plug-in structure shown in some embodiments;

[0038] Figure 5 It is a schematic diagram of the principle of the needle removal structure shown in some embodiments;

[0039] Figure 6 A structural diagram of a winding device shown in some embodiments;

[0040] Figure 7 It is a schematic diagram of the upper swing rod structure of the needle winding and plugging mechanism shown in some embodiments;

[0041] Figure 8 Schematic diagram of the gear rack structure on the needle winding and plugging mechanism shown in some embodiments.

[0042] In the figure: 1. first actuating member; 2. second actuating member; 3. pin insertion structure; 4. pin extraction structure; 5. pin insertion and extraction structure; 6. crank slider structure; 7. first guide structure; 8. electromagnetic clutch; 9. driving member; 10. bearing seat; 11. first half pin; 12. second half pin; 13. reel; 14. rocker rod structure; 15. gear rack structure; 41. limit member; 42. elastic member; 43. second guide rod; 44. second linear bearing; 45. mounting seat. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0044] like Figure 1-Figure 8 As shown, an embodiment of the present application provides a needle winding and plugging mechanism, including a first plugging and pulling needle assembly, a second plugging and pulling needle assembly, a transmission switching assembly and a driving member 9.

[0045] The transmission switching assembly has a first state and a second state. The transmission switching assembly switches the transmission path by switching the state. Correspondingly, the transmission switching assembly has a first transmission path and a second transmission path. In the actual switching process, when the transmission switching assembly is in the first state, the transmission switching assembly forms a first transmission path, so that the driving member 9 is connected to the first plug-in needle assembly through the first transmission path, so that the driving member 9 can drive the first plug-in needle assembly to move. When the transmission switching assembly is in the second state, the transmission switching assembly forms a second transmission path, so that the driving member 9 is connected to the second plug-in needle assembly through the second transmission path, so that the driving member 9 can drive the second plug-in needle assembly to move. In this way, by switching the state of the transmission switching assembly, the power of the driving member 9 can be alternately transmitted to the first plug-in needle assembly and the second plug-in needle assembly. If the first plug-in needle assembly needs to move, the transmission switching assembly switches to the first state. If the second plug-in needle assembly needs to move, the transmission switching assembly switches to the second state, which is conducive to switching and controlling the movements of the first plug-in needle assembly and the second plug-in needle assembly.

[0046] Here, the transmission switching assembly can be understood as having an input end and two output ends, the input end is transmission-connected to the driving member 9, and the two output ends are transmission-connected to the first plug-in needle assembly and the second plug-in needle assembly, respectively. The power of the input end of the transmission switching assembly is decomposed and transmitted to the two output ends, and the transmission switching assembly can interlock the two output ends by switching the state, that is, one output end outputs power while the other output end does not output power.

[0047] During the actual working process, the transmission switching assembly switches to the first state, so that the driving member is transmission-connected with the first plug-in needle assembly, the driving member outputs power and drives the first plug-in needle assembly to move, so that the first plug-in needle assembly inserts the first half needle at the winding station, and pulls out the first half needle at the unloading station; the transmission switching assembly switches to the second state, so that the driving member is transmission-connected with the second plug-in needle assembly, the driving member outputs power and drives the second plug-in needle assembly to move, so that the second plug-in needle assembly pulls out the second half needle at the unloading station and inserts the second half needle, and then realizes the insertion and pull-out operations of the first half needle and the second half needle at the winding station and the unloading station through one driving member.

[0048] With such an arrangement, only one driving member 9 is used to output power. By switching the state of the transmission switching assembly, the power of the driving member 9 can be alternately transmitted to the first plug-in needle assembly and the second plug-in needle assembly. Through the corresponding actions of the first plug-in needle assembly and the second plug-in needle assembly, the first half needle 11 and the second half needle 12 on the winding station and the unloading station are plugged in and out respectively. The structural design is simple and reliable, occupies little space, and is conducive to saving energy consumption and costs.

[0049] The first needle insertion and extraction assembly performs the needle insertion operation on the first half needle at the winding station and the needle extraction operation on the first half needle at the unloading station through the same structure or different structures. Since the two first half needles are respectively at the winding station and the unloading station, when passing through the same structure, the structure needs to be switched between two positions or two postures to correspond to the two first half needles at different stations respectively, so as to realize the corresponding operations. For example, when the needle insertion operation and needle extraction operation of the two first half needles are realized through one structure, the structure first performs the needle insertion operation on the first half needle at the winding station, and then the structure rotates a certain angle or displaces a certain distance, so that the structure just fits into the tail of the first half needle at the unloading station, and the structure can be separated from the first half needle at the winding station. The structure continues to move to drive the first half needle at the unloading station to complete the needle extraction operation. Specifically, the rotation and displacement of the structure can be realized by a cylinder or a motor.

[0050] In the scheme of realizing the needle insertion operation and needle removal operation of the two first half needles by different structures, the above-mentioned different structures can be two structures (the first structure and the second structure). Since the two first half needles are respectively in the winding station and the unloading station, the two first half needles are operated separately by the first structure and the second structure. The first structure first completes the needle insertion operation on the first half needles at the winding station, and then the second structure completes the needle removal operation on the first half needles at the unloading station. Interference can be avoided by the alternating actions of the first structure and the second structure.

[0051] Of course, the second needle insertion and extraction assembly can also perform needle extraction and needle insertion operations on the second half needle at the blanking station through the same structure or different structures. When the second half needle is inserted and extracted through the same structure, the structure can be clamped into the tail of the second half needle at the blanking station, and drive the second half needle to move back and forth, thereby realizing the needle insertion and needle extraction operations. When the second half needle is inserted and extracted through different structures, the above different structures can be two structures (the third structure and the fourth structure). The third structure and the fourth structure respectively perform needle extraction and needle insertion operations on the same second half needle. The third structure first completes the needle extraction operation on the second half needle at the blanking station, and then the fourth structure completes the needle insertion operation on the second half needle at the blanking station.

[0052] In the present scheme, the first needle insertion and extraction assembly realizes the insertion operation and needle extraction operation of the two first half needles through different structures, that is, the first needle insertion and extraction assembly includes a first actuating member, a needle insertion structure and a needle extraction structure, wherein the first actuating member is connected to the driving member through a transmission switching member, and when the transmission switching member is in the first state, the driving member is transmission-connected to the first actuating member, and can drive the first actuating member to perform the first action and the second action, so as to realize the insertion operation and needle extraction operation of the first half needle through the first action and the second action.

[0053] Specifically, the first action and the second action are set as reciprocating actions, that is, the first action is to approach the reel, and the second action is to move away from the reel. Figure 7 As shown, the transmission switching assembly is connected to the first action member through the swing rod structure 14, and the swing rod in the swing rod structure 14 swings, driving the first action member to approach the reel and move away from the reel along an arc path. Figure 1 As shown, the transmission switching assembly is connected to the first actuating member through a crank slider structure. The slider in the crank slider structure moves back and forth linearly, driving the first actuating member to reciprocate in the axial direction of the reel. In this way, the movement direction of the first actuating member is consistent with the movement direction of the first half needle, which is beneficial to reducing the movement path, saving energy consumption, and improving the stability and safety of the needle insertion and removal operations.

[0054] Here, the reciprocating motion of the first actuating member in the axial direction of the reel is explained. The first actuating member 1 is provided with a pin insertion structure 3 and a pin pulling structure 4. In the axial direction of the reel 13, the position of the pin insertion structure 3 is opposite to the first half pin 11 of the winding pin in the winding station, and the position of the pin pulling structure 4 is opposite to the first half pin 11 of the winding pin in the unloading station, so as to operate the first half pin 11 in the winding station and the unloading station through the pin insertion structure 3 and the pin pulling structure 4. In the actual working process, when the transmission switching assembly is in the first state, the driving member 9 drives the first actuating member 1 to move back and forth along the axial direction of the reel 13 (here, the reciprocating movement of the first actuating member 1 includes the first actuating member 1 approaching the reel 13 and the first actuating member 1 moving away from the reel 13), so as to drive the pin insertion structure 3 and the pin pulling structure 4 to move back and forth along the axial direction of the reel 13 with the first actuating member 1. In the process of the first operating member 1 approaching the reel 13, the first operating member 1 performs a needle insertion operation on the first half needle 11 at the winding station through the needle insertion structure 3, that is, the first operating member 1 pushes the first half needle 11 at the winding station to move through the needle insertion structure 3 until the needle insertion operation is completed, and the needle pulling structure 4 is connected with the first half needle 11 at the blanking station when the needle insertion operation is completed; then, the first operating member 1 moves away from the reel 13, the needle insertion structure 3 is separated from the first half needle 11 at the winding station, and the first operating member 1 performs a needle pulling operation on the first half needle 11 at the blanking station through the needle pulling structure 4, that is, the first operating member 1 pulls the first half needle 11 at the blanking station to move through the needle pulling structure 4 until the needle pulling operation is completed. In this way, through the design of the needle insertion structure 3 and the needle pulling structure 4, the displacement of the first actuating member 1 close to and away from the reel 13 can respectively realize the operation of the first half needle 11 on the winding station and the unloading station, that is, the needle insertion operation and the needle pulling operation are respectively performed on the first half needle 11 on the two different stations, so that the reciprocating stroke action of the first actuating member 1 can be utilized, avoiding the existence of an empty stroke of the first actuating member 1, which is conducive to maximizing the utilization of the kinetic energy of the driving member 9.

[0055] Of course, in some other solutions, the first plug-in needle assembly can also be configured in other forms, such as Figure 8 As shown, the first needle insertion and extraction assembly may only include a needle insertion structure and a needle extraction structure, and the first actuating member may be omitted. The needle insertion structure and the needle extraction structure are respectively connected to the transmission switching assembly via a gear rack structure 15, and the gears of the two gear rack structures 15 are meshed, so that the driving member transmits power to the gear of one of the gear rack structures 15 via the transmission switching assembly, thereby driving the racks of the two gear rack structures 15 to synchronously displace, and the needle insertion structure and the needle extraction structure are respectively connected to the racks of the two gear rack structures 15, so that the needle insertion structure and the needle extraction structure can be synchronously displaced, thereby completing the above-mentioned needle insertion operation and needle extraction operation.

[0056] In the present solution, the second needle insertion and extraction assembly realizes the needle insertion and extraction operations of the same second half needle through the same structure, that is, the second needle insertion and extraction assembly includes a second actuating member and a needle insertion and extraction structure, wherein the second actuating member is connected to the driving member through a transmission switching assembly, and when the transmission switching assembly is in the second state, the driving member is transmission-connected to the second actuating member, and can drive the second actuating member to perform the third and fourth actions, so as to realize the needle insertion and extraction operations of the second half needle through the third and fourth actions.

[0057] Specifically, the third action and the fourth action are set as reciprocating actions, that is, the third action is to move away from the reel, and the fourth action is to move closer to the reel. For example, the transmission switching assembly is connected to the second action member through the rocker structure 14, and the rocker in the rocker structure 14 swings to drive the second action member away from the reel and closer to the reel along an arc path. For another example, as shown in Figure 1, the transmission switching assembly is connected to the second action member through the crank slider structure, and the slider in the crank slider structure reciprocates linearly to drive the second action member to reciprocate in the axial direction of the reel. In this way, the action direction of the second action member is consistent with the action direction of the second half needle, which is conducive to reducing the action path, saving energy consumption, and improving the stability and safety of the needle insertion and removal operations.

[0058] Here, the reciprocating motion of the second actuating member in the axial direction of the reel is explained. The second actuating member 2 is provided with a plug-in needle structure 5. In the axial direction of the reel 13, the position of the plug-in needle structure 5 is opposite to the second half needle 12 of the winding needle in the unloading station, so as to operate the second half needle 12 in the unloading station through the plug-in needle structure 5. In the actual working process, when the transmission switching assembly is in the second state, the driving member 9 drives the second actuating member 2 to move back and forth along the axial direction of the reel 13 (here, the reciprocating motion of the second actuating member 2 includes the second actuating member 2 approaching the reel 13 and the second actuating member 2 moving away from the reel 13), so as to drive the plug-in needle structure 5 to move back and forth along the axial direction of the reel 13 with the second actuating member 2. When the winding needle is switched from the winding station to the unloading station, the second half needle 12 of the winding needle at the unloading station is connected to the plug-in needle structure 5 on the second actuating member 2, and then, the second actuating member 2 moves away from the reel 13, and the second actuating member 2 performs a needle pulling operation on the second half needle 12 at the unloading station through the plug-in needle structure 5, that is, the second actuating member 2 pulls the second half needle 12 at the unloading station to move through the plug-in needle structure 5 until the needle pulling operation is completed, because the first actuating member 1 has previously performed a needle pulling operation on the first half needle 11 at the unloading station, the unloading of the battery cell can be completed after the second half needle 12 at the unloading station completes the needle pulling operation; then, the second actuating member 2 approaches the reel 13, and the second actuating member 2 performs a needle insertion operation on the second half needle 12 at the unloading station through the plug-in needle structure 5, that is, the second actuating member 2 pushes the second half needle 12 at the unloading station to move through the plug-in needle structure 5 until the needle insertion operation is completed.

[0059] With such arrangement, only one driving member 9 is used to output power. By switching the state of the transmission switching component, the power of the driving member 9 can be alternately transmitted to the first actuating member 1 and the second actuating member 2. By the first actuating member 1 and the second actuating member 2 moving back and forth in the axial direction of the reel 13, the first half needle 11 and the second half needle 12 on the winding station and the unloading station are respectively plugged in and out. The structural design is simple and reliable, occupies little space, and is conducive to saving energy consumption and costs.

[0060] Specifically, the winding needle insertion and extraction mechanism is arranged on the supporting seat 10, and correspondingly, the first actuating member 1 and the second actuating member 2 are slidably connected to the supporting seat 10, and can be displaced along the axial direction of the reel 13 relative to the supporting seat 10. The transmission switching assembly and the driving member 9 are fixedly connected to the supporting seat 10, and the driving member 9 is respectively connected to the first actuating member 1 and the second actuating member 2 through the transmission switching assembly, so that the driving member 9 can transmit power to the first actuating member 1 and the second actuating member 2. Under the driving action of the driving member 9 and the transmission switching assembly, the first actuating member 1 and the second actuating member 2 are displaced along the axial direction of the reel 13 relative to the supporting seat 10.

[0061] It should be noted that if Figure 3As shown, the winding needle comprises a winding drum 13, a first half needle 11 and a second half needle 12, the first half needle 11 and the second half needle 12 are inserted into the winding drum 13, and the first half needle 11 and the second half needle 12 both have a needle portion and a tail portion (respectively located at Figure 3 The reel 13 has a first end and a second end, and the needle portion can extend and retract from the first end of the reel 13. When the needle portion is extended, it is used to wind the electrode and the diaphragm, and when the needle portion is retracted, it is used to unload the wound battery cell. The tail portion is located at the second end of the reel 13 and away from the first end. By operating the tail portion, the needle portion can be extended into and retracted from the first end of the reel 13, that is, when the tail portion is close to the reel 13, the needle portion extends out of the reel 13, and when the tail portion is away from the reel 13, the needle portion retracts into the reel 13. Based on the structure of the winding needle, it can be seen that the axial directions of the reel 13, the first half needle 11 and the second half needle 12 are all the axial directions of the winding needle, and the first actuating member 1 and the second actuating member 2 move back and forth in the axial direction of the reel 13. It can be understood that the first actuating member 1 and the second actuating member 2 are both located at the second end of the reel 13 and away from the first end, so that the first actuating member 1 and the second actuating member 2 can approach and move away from the reel 13 along the axial direction of the reel 13.

[0062] In this solution, the driving member 9 can output a rotational motion. Specifically, the driving member 9 is configured as a servo motor to precisely control the rotational motion, which is beneficial to improving the accuracy of the needle insertion and extraction operations. Of course, the driving member 9 can also be configured as other structures capable of outputting a rotational motion, such as a hydraulic motor.

[0063] Correspondingly, the winding needle insertion and extraction mechanism also includes a first linear transmission component and a second linear transmission component, which can convert the rotational motion into a linear reciprocating motion, wherein the first linear transmission component is transmission-connected to the driving member 9 (specifically, an output end of the transmission switching component) and the first actuating member 1, so that the rotational motion output by the driving member 9 can drive the first actuating member 1 to move back and forth in the axial direction of the reel 13, and the second linear transmission component is transmission-connected to the driving member 9 (specifically, the other output end of the transmission switching component) and the second actuating member 2, so that the rotational motion output by the driving member 9 can drive the second actuating member 2 to move back and forth in the axial direction of the reel 13.

[0064] In some other schemes, the driving member 9 can output linear motion. Specifically, the driving member 9 can be set as a linear motor, a cylinder, a hydraulic cylinder or other structures. The linear motion of the driving member 9 is decomposed and switched through a transmission switching component, so that the driving member 9 can respectively drive the first motion member 1 and the second motion member 2 to move back and forth.

[0065] In this solution, at least one of the first linear transmission component and the second linear transmission component includes a crank slider structure 6 and a first guide structure 7. Preferably, the first linear transmission component and the second linear transmission component have the same structure, so that it is convenient to replace and maintain components of the same structure, saving costs.

[0066] In the first linear transmission component, the transmission switching component and the first acting member 1 are connected through a crank slider structure 6. Specifically, the crank slider structure 6 includes a first connecting rod, a second connecting rod and a connecting block. One end of the first connecting rod is connected to the output end of the transmission switching component and the other end is hinged to the second connecting rod. One end of the second connecting rod is hinged to the first connecting rod and the other end is hinged to the sliding block. The sliding block is connected to the first acting member 1 so that the rotation of the driving member 9 can drive the first acting member 1 to move back and forth; the first guide structure 7 can guide the first acting member 1 in the axial direction of the reel 13. Specifically, the first guide structure 7 includes a plurality of first guide rods. The first guide rods are connected to the bearing seat 10, and the extension direction is parallel to the axial direction of the reel 13. The first acting member 1 is slidably connected to the first guide rod to guide the first acting member 1 in the axial direction of the reel 13. For example, the first acting member 1 is set as a sliding plate, and the first guide rod passes through the sliding plate and a first linear bearing is set between them. In this way, through the cooperation of the crank slider structure 6 and the first guide structure 7, the first action member 1 can be displaced back and forth in the axial direction of the winding drum 13. The structure is simple and stable, which is conducive to improving the stability of the displacement of the first action member 1.

[0067] In the second linear transmission component, the transmission switching component and the second acting member 2 are connected through a crank slider structure 6. Specifically, the crank slider structure 6 includes a first connecting rod, a second connecting rod and a connecting block. One end of the first connecting rod is connected to the output end of the transmission switching component and the other end is hinged to the second connecting rod. One end of the second connecting rod is hinged to the first connecting rod and the other end is hinged to the sliding block. The sliding block is connected to the second acting member 2 so that the rotation of the driving member 9 can drive the second acting member 2 to move back and forth; the first guide structure 7 can guide the second acting member 2 in the axial direction of the reel 13. Specifically, the first guide structure 7 includes a plurality of first guide rods. The first guide rod is connected to the bearing seat 10, and the extension direction is parallel to the axial direction of the reel 13. The second acting member 2 is slidably connected to the first guide rod to guide the second acting member 2 in the axial direction of the reel 13. For example, the second acting member 2 is set as a sliding plate, and the first guide rod passes through the sliding plate and a first linear bearing is set between them. In this way, through the cooperation of the crank slider structure 6 and the first guide structure 7, the second actuating member 2 can be displaced back and forth in the axial direction of the winding drum 13. The structure is simple and stable, which is conducive to improving the stability of the displacement of the second actuating member 2.

[0068] Of course, in other solutions, the crank slider structure 6 can also be replaced by a gear rack structure 15 or a screw nut structure, etc.

[0069] In this solution, the transmission switching assembly includes two electromagnetic clutches 8, and the electromagnetic clutches 8 have an input end and an output end. By controlling the clutch state of the electromagnetic clutch 8, the transmission state of the input end and the output end of the electromagnetic clutch 8 (i.e., whether the input end and the output end are in transmission connection) can be controlled. The input ends of the two electromagnetic clutches 8 are both in transmission connection with the driving member 9, and the output ends of the two electromagnetic clutches 8 are respectively in transmission connection with the first linear transmission assembly and the second linear transmission assembly. In this way, by controlling one of the two electromagnetic clutches 8 to be powered on and the other to be powered off, the switching between the first state and the second state of the transmission switching assembly can be achieved, and the switching is rapid, simple, convenient, and easy to control.

[0070] In some other schemes, on the basis that the first linear transmission component and the second linear transmission component both include a crank slider structure 6 and a first guide structure 7, the transmission switching component includes two one-way bearing structures or ratchet structures with opposite transmission directions, one end of the two one-way bearing structures or ratchet structures with opposite transmission directions are both transmission-connected to the driving member 9, and the other end is respectively transmission-connected to the first linear transmission component and the second linear transmission component. In this way, by controlling the forward and reverse rotation of the driving member 9, the switching between the first state and the second state of the transmission switching component can be achieved, without the need for an external power supply, which is conducive to simplifying the structure.

[0071] In this solution, the needle pulling structure 4 includes a stopper 41, which is elastically connected to the first action member 1 so as to be elastically displaced relative to the first action member 1. The stopper 41 has an unlocking slope and a stopper surface, the unlocking slope faces the first half needle 11 at the unloading station, and gradually moves away from the first half needle 11 at the unloading station in a direction close to the reel 13, and the stopper surface is located on the side of the stopper 41 close to and away from. During operation, when the first actuating member 1 approaches the reel 13, the limiting member 41 approaches the reel 13 along with the first actuating member 1, and the tail of the first half needle 11 at the unloading station contacts the unlocking inclined plane and slides on the unlocking inclined plane. Since the limiting member 41 is elastically connected to the first actuating member 1, under the contact action of the tail of the first half needle 11 at the unloading station, the limiting member 41 overcomes the elastic force and avoids until the tail of the first half needle 11 at the unloading station passes over the limiting member 41 (for example, the limiting member is embedded in the annular groove at the tail of the first half needle 11), and then the limiting member Part 41 recovers its state under the action of elastic force, so that the tail of the first half needle 11 at the unloading station is located on the side of the limiting surface away from the reel 13; when the first operating part 1 is away from the reel 13, the limiting part 41 moves away from the reel 13 along with the first operating part 1, and the limiting surface abuts against the tail of the first half needle 11 at the unloading station (for example, the limiting part abuts against the inner wall of the annular groove at the tail of the first half needle 11), so that the first operating part 1 pulls the tail of the first half needle 11 at the unloading station to move through the axial limitation of the limiting part 41 to complete the needle pulling operation.

[0072] In this way, by elastically connecting the limit member 41 with the first actuating member 1 and forming an elastic avoidance elastic inclined surface on the limit member 41, a one-way limit connection is realized for the first half needle 11 at the unloading station (i.e., it avoids and passes in the direction close to the reel 13, and is limit connected in the direction away from the reel 13). The control is performed by a purely mechanical structure without the intervention of other power sources, which is beneficial to saving kinetic energy loss and simplifying the control structure.

[0073] Here, the elastic connection between the limit member 41 and the first actuating member 1 can be set as a telescopic connection, that is, the limit member 41 is linearly telescopically displaced in the direction of approaching and moving away from the first actuating member 1, or can be set as a rotational connection, that is, the limit member 41 is rotationally connected to the first actuating member 1. Through the rotation of the limit member 41 relative to the first actuating member 1, the unlocking inclined surface can be rotated to avoid the tail of the first half needle 11 at the unloading station.

[0074] like Figure 5As shown, the needle pulling structure 4 includes a mounting seat 45, an elastic member 42 and a second guide structure. The mounting seat 45 is connected to the first action member 1 to achieve overall support for the needle pulling structure 4; one end of the elastic member 42 is connected to the limit member 41 and the other end is connected to the mounting seat 45, and under the elastic action of the elastic member 42, the limit member 41 can protrude from the mounting seat 45, so as to facilitate a one-way limit connection of the tail of the first half needle 11 at the blanking station; the second guide structure is respectively connected to the limit member 41 and the mounting seat 45 to guide the limit member 41 along the radial direction of the first half needle 11 at the blanking station, so that the displacement direction of the limit member 41 is maintained in the radial direction of the first half needle 11 at the blanking station, thereby improving the reliability of the displacement. In this way, through the action of the elastic member 42 and the second guide structure, the limiting member 41 can be elastically connected to the mounting seat 45, and the limiting member 41 can be linearly reciprocated relative to the mounting seat 45 in the radial direction of the first half needle 11 at the unloading station, thereby improving the stability of the action of the limiting member 41. Since the limiting member 41 is displaced in the radial direction of the first half needle 11 at the unloading station (i.e., perpendicular to the axial direction of the reel 13), the displacement direction of the limiting member 41 is perpendicular to the displacement direction of the first actuating member 1, and has a good limiting effect.

[0075] Specifically, the limiting member 41 is configured as a wedge, the elastic member 42 is configured as a spring, and the second guide structure includes a plurality of second guide rods 43, one end of the second guide rod 43 is connected to the limiting member 41, and the other end is passed through the mounting seat 45 and slidably cooperates with the mounting seat 45. Here, a second linear bearing 44 is arranged between the second guide rod 43 and the mounting seat 45 to ensure the stability of the linear sliding.

[0076] The mounting seat 45 is provided with a mounting groove, and the limiting member 41 is slidably connected in the mounting groove and can protrude and hide in the mounting groove. In this way, the displacement of the limiting member 41 can be guided and the limiting member 41 can be stored through the mounting groove. At the same time, the elastic member 42 and the second guide structure are both arranged in the mounting groove, which can improve the stability and reliability of the needle extraction structure 4 and help to increase the service life.

[0077] In other schemes, the needle pulling structure 4 includes a telescopic member, which is movably connected to the first operating member 1 so that the telescopic member can extend and retract from the first operating member 1. Specifically, the needle pulling structure 4 can be set as a cylinder body such as a pneumatic cylinder or a hydraulic cylinder, and the telescopic member is set as a piston rod on the cylinder body. By controlling the cylinder body, the piston rod is controlled to extend and retract relative to the first operating member 1, or the needle pulling structure 4 is set as a solenoid valve, and the telescopic member is set as a valve core. By controlling the solenoid valve, the valve core is controlled to extend and retract relative to the first operating member 1. During use, when the first operating member 1 drives the needle pulling structure 4 to approach the reel 13, the telescopic member retracts relative to the first operating member 1 so that the tail of the first half needle 11 at the unloading station passes over the telescopic member. When the first operating member 1 drives the needle pulling structure 4 away from the reel 13, the telescopic member extends relative to the first operating member 1 so that the tail of the first half needle 11 at the unloading station is against the telescopic member, and then the first operating member 1 pulls the tail of the first half needle 11 at the unloading station through the telescopic member to move, so as to complete the needle pulling operation. In this way, the telescopic member is controlled by external power, with high responsiveness and sensitive action.

[0078] The pin insertion structure 3 includes a push plate, which is arranged on the first action member 1. Specifically, the push plate can be connected to the first action member 1, or it can be a part of the first action member 1. For example, when the first action member 1 is set as a sliding plate, the push plate and the sliding plate are set as one body. The push plate and the axial projection of the tail of the first half needle 11 in the winding station at least partially overlap, so that when the first action member 1 drives the push plate to approach the reel 13, the push plate and the tail of the first half needle 11 in the winding station are abutted, and then the first sliding plate pushes the tail of the first half needle 11 in the winding station to move through the push plate to complete the pin insertion operation. In this way, by the push plate and the tail of the first half needle 11 in the winding station abutting each other, the first sliding plate can drive the first half needle 11 in the winding station to unidirectionally move without using a connecting structure, and the structure is simple, stable and reliable.

[0079] It should be noted that the winding needle includes a winding drum 13, a first half needle 11 and a second half needle 12. The first half needle 11 and the second half needle 12 have a needle portion and a tail portion. By manipulating the tail portion, the needle portion can be extended relative to the winding drum 13. Figure 3 As shown, the tail portion is provided with a push-pull groove, which is formed between two adjacent annular protrusions.

[0080] The needle insertion and extraction structure 5 includes a push-pull plate, which is arranged on the second action member 2. The push-pull plate can be connected to the second action member 2, or can be a part of the second action member 2. For example, when the second action member 2 is set as a sliding plate, the push-pull plate and the sliding plate are set as one body. Moreover, when the second half needle 12 is in the blanking station, the push-pull plate is located in the push-pull groove, and limits the push-pull groove in the axial direction of the reel 13. In this way, through the design of the push-pull plate, the push-pull plate can be matched with the original push-pull groove on the second half needle 12, and the structure is simple, stable and reliable.

[0081] Specifically, the side of the push-pull plate facing the second half needle 12 is arranged in an arc shape and is adapted to the bottom of the push-pull groove, so that the push-pull groove and the push-pull plate have a larger contact area.

[0082] During actual use, when the second half needle 12 is in the unloading station, the tail of the second half needle 12 is opposite to the needle insertion and extraction structure 5, so that the push-pull plate is located in the push-pull groove, and in the axial direction of the reel 13, the push-pull plate forms a limit to the push-pull groove, so that the second actuating member 2 can perform needle insertion and needle extraction operations on the second half needle 12 in the unloading station through the needle insertion and extraction structure 5; correspondingly, when the second half needle 12 is in the winding station, the tail of the second half needle 12 is staggered with the needle insertion and extraction structure 5, so that the push-pull plate extends out of the push-pull groove, and then in the axial direction of the reel 13, the push-pull plate cancels the limit on the push-pull groove.

[0083] The embodiment of the present application provides a winding device, including a needle insertion and extraction mechanism, which is the needle insertion and extraction mechanism in the above embodiment. In this arrangement, only one driving member 9 is used to output power, and the power of the driving member 9 can be alternately transmitted to the first actuating member 1 and the second actuating member 2 by switching the state of the transmission switching component. The first actuating member 1 and the second actuating member 2 are moved back and forth in the axial direction of the reel 13 to insert and extract the first half needle 11 and the second half needle 12 on the winding station and the unloading station, respectively. The structural design is simple and reliable, occupies little space, and is conducive to saving energy consumption and cost.

[0084] In addition, for other beneficial effects brought about by the winding device, please refer to the above description of the winding needle insertion and extraction mechanism, which will not be repeated here.

[0085] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0086] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.

[0087] It should also be noted that in the apparatus, device and method of the present application, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0088] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0089] It should be understood that the qualifiers "first", "second", "third", "fourth", "fifth" and "sixth" used in the description of the embodiments of the present application are only used to more clearly explain the technical solutions and cannot be used to limit the scope of protection of the present application.

[0090] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A needle winding and insertion mechanism, characterized in that: It comprises a first needle plugging and pulling assembly, a second needle plugging and pulling assembly, a transmission switching assembly and a driving member, wherein the driving member is connected to the first needle plugging and pulling assembly and the second needle plugging and pulling assembly through the transmission switching assembly; the first needle plugging and pulling assembly comprises a first action member, the second needle plugging and pulling assembly comprises a second action member, when the transmission switching assembly is in a first state, the driving member is transmission-connected with the first action member, and can drive the first action member to perform a first action needle plugging operation on the first half needle at the winding station, and a second action needle pulling operation on the first half needle at the blanking station; when the transmission switching assembly is in a second state, the driving member is transmission-connected with the second action member, and can drive the second action member to perform a third action needle pulling operation and a fourth action needle plugging operation on the second half needle at the blanking station; The first action and the fourth action are arranged to be close to the reel in the axial direction of the reel, and the second action and the third action are arranged to be away from the reel in the axial direction of the reel.

2. The needle winding and insertion mechanism according to claim 1, characterized in that: The first needle insertion and extraction assembly inserts the first half of the needles at the winding station and extracts the first half of the needles at the unloading station through the same structure or different structures; and / or the second needle insertion and extraction assembly extracts and inserts the second half of the needles at the unloading station through the same structure or different structures.

3. The needle winding and inserting mechanism according to claim 2, characterized in that: The first plug-in needle assembly also includes: A needle insertion structure is arranged on the first action member, and when the first action member performs the first action, the first half needle at the winding station is inserted through the needle insertion structure; The needle pulling structure is arranged on the first actuating member. When the first actuating member performs the second action, the needle insertion structure is separated from the first half needle at the winding station. The first actuating member is connected to the first half needle at the unloading station through the needle pulling structure and performs a needle pulling operation on it.

4. The needle winding and inserting mechanism according to claim 3, characterized in that: The second plug-in pin assembly also includes: The needle insertion and extraction structure is arranged on the second actuating member. When the second actuating member performs the third action and the fourth action, the needle insertion and extraction structure is connected with the second half needle at the blanking station to perform needle extraction and needle insertion operations.

5. The needle winding and inserting mechanism according to claim 4, characterized in that: The driving member can output a rotational motion, and is respectively connected to the first actuating member and the second actuating member through a first linear transmission component and a second linear transmission component. The first linear transmission component and the second linear transmission component can convert the rotational motion into a linear reciprocating motion, so that the driving member can respectively drive the first actuating member and the second actuating member to move back and forth in the axial direction of the reel.

6. The needle winding and inserting mechanism according to claim 5, characterized in that: The first linear transmission assembly and / or the second linear transmission assembly comprises a crank slider structure and a first guide structure; Among them, the transmission switching component and the first acting part are connected through the crank slider structure of the first linear transmission component, and the first guide structure of the first linear transmission component can guide the first acting part in the axial direction of the reel; the transmission switching component and the second acting part are connected through the crank slider structure of the second linear transmission component, and the first guide structure of the second linear transmission component can guide the second acting part in the axial direction of the reel.

7. The winding needle insertion and extraction mechanism according to claim 5, characterized in that: The transmission switching assembly comprises: Two electromagnetic clutches, both of which are in transmission connection with the driving member, and are respectively in transmission connection with the first linear transmission assembly and the second linear transmission assembly; Alternatively, two one-way bearing structures or ratchet structures with opposite transmission directions are both transmission-connected to the driving member, and are transmission-connected to the first linear transmission assembly and the second linear transmission assembly, respectively.

8. The needle winding and inserting mechanism according to claim 3, characterized in that: The needle pulling structure includes a limiting member, which is elastically connected to the first actuating member and has an unlocking inclined surface and a limiting surface. When the first actuating member approaches the reel, the tail of the first half needle at the unloading station can slide on the unlocking inclined surface to pass over the limiting member; when the limiting member is away from the reel, the limiting surface can abut against the tail of the first half needle at the unloading station.

9. The winding needle insertion and extraction mechanism according to claim 8, characterized in that: The needle removal structure comprises: A mounting seat connected to the first actuating member; An elastic member connected to the limiting member and the mounting seat, capable of driving the limiting member to protrude from the mounting seat; The second guiding structure is connected to the limiting member and the mounting seat, and can guide the limiting member along the radial direction of the first half needle.

10. The needle winding and inserting mechanism according to claim 9, characterized in that: The mounting seat is provided with a mounting groove, and the limiting member is slidably connected in the mounting groove and can protrude from and be hidden in the mounting groove.

11. The winding needle insertion and extraction mechanism according to claim 3, characterized in that: The needle pulling structure includes a telescopic part, which is movably connected to the first actuating part. When the first actuating part approaches the reel, the telescopic part retracts so that the tail of the first half needle at the unloading station can pass over the telescopic part; when the first actuating part moves away from the reel, the telescopic part extends so that the tail of the first half needle at the unloading station can abut against the telescopic part.

12. The needle winding and inserting mechanism according to claim 3, characterized in that: The needle insertion structure comprises a push plate, which is arranged on the first actuating member, and the push plate at least partially overlaps with the axial projection of the tail of the first half needle at the winding station.

13. The needle winding and inserting mechanism according to claim 4, characterized in that: A push-pull groove is provided at the tail of the second half needle, and the needle insertion and extraction structure includes a push-pull plate, which is arranged on the second actuating member; when the second half needle is in the unloading station, the push-pull plate is located in the push-pull groove and limits the push-pull groove in the axial direction of the reel.

14. A winding device, characterized in that: It comprises a needle winding and inserting mechanism as described in any one of claims 1 to 13.

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