Rolling needle

Abstract

The present application discloses a winding needle, comprising: a first clamp and a second clamp for clamping a substrate; a guide component, comprising a first track extending obliquely from the first clamp toward the second clamp, and one of the first clamp and the second clamp being slidably connected to the first track; a driving component, capable of driving the guide component, or the first clamp or the second clamp slidably connected to the first track to move axially along the winding needle; wherein the first track can convert the axial drive of the driving component into relative movement between the first clamp and the second clamp, thereby enabling the first clamp and the second clamp to simply and stably clamp or release the substrate.

Description

Technical Field

[0001] The present application relates to the technical field of battery manufacturing equipment, and in particular to a winding needle. Background Art

[0002] The electric components such as the battery core and the capacitor core are formed by winding the corresponding substrate by the winding machine. During winding, the winding needle is used to clamp the substrate and drive the substrate to be wound around the winding needle housing 60 by self-rotation to finally be wound into the electric component.

[0003] Traditional winding needles usually include two petals, and the substrate is clamped or released by directly opening and closing the two petals. The design of this type of winding needle is relatively complex and inconvenient to open and close. Summary of the invention

[0004] The present application provides a rolling needle to solve the technical defects of the rolling needle in the prior art, such as complex design and inconvenient opening and closing.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a winding needle, including: a first clamp and a second clamp, used to clamp the substrate; a guide component, the guide component includes a first track extending obliquely from the first clamp toward the second clamp, and one of the first clamp and the second clamp is slidably connected to the first track; a driving component, the driving component can drive the guiding component, or the driving component can drive the first clamp or the second clamp slidably connected to the first track to move along the axial direction of the winding needle; wherein the first track can convert the axial drive of the driving component into relative movement between the first clamp and the second clamp.

[0006] Furthermore, the first clamp includes: a clamping block, which is slidably connected to the first track; a reel body, which is fixedly arranged relative to the second clamp, and there is a gap between the reel body and the second clamp; wherein the clamping block is arranged inside the reel body, and the driving component can drive the guide component to move axially, so that the clamping block approaches the second clamp along the first track to press against the second clamp to clamp the substrate; or, the clamping block moves away from the second clamp along the first track to release the substrate.

[0007] Furthermore, a fourth track is provided on the clamping block, and the reel body is slidably connected to the fourth track; or, a fourth track is provided on the reel body, and the clamping block is slidably connected to the fourth track; the fourth track is arranged toward the second clamp, and when the clamping block approaches or moves away from the second clamp, the fourth track can limit the movement direction of the clamping block.

[0008] Furthermore, the guide assembly also includes a second track extending along the axial direction, and the reel body or the second clamp is slidably connected to the second track; the positions of the reel body and the second clamp are relatively fixed, and when the driving assembly drives the guide assembly to move axially, the second track can limit the movement direction of the guide assembly.

[0009] Furthermore, the ends of the reel body and the second clamp close to the substrate are provided with bell mouths to facilitate the substrate to enter between the reel body and the second clamp.

[0010] Furthermore, the winding needle also includes a third clamp, the first clamp is arranged between the second clamp and the third clamp, and the third clamp can be close to or away from the first clamp.

[0011] Furthermore, the guide assembly also includes a third track, which extends obliquely from the third clamp toward the first clamp, and the third clamp is slidably connected to the third track, and the third clamp can approach or move away from the first clamp along the third track.

[0012] Furthermore, the third track includes a guide rail segment A extending obliquely from the third clamp toward the first clamp, and also includes: a guide rail segment B, connected to one end of the guide rail segment A and extending axially; and / or a guide rail segment C, connected to the other end of the guide rail segment A and extending axially; wherein, when the third clamp moves to the guide rail segment B or the guide rail segment C, the distance between the third clamp and the first clamp no longer changes.

[0013] Furthermore, the guide assembly is a guide block, and the first track and the third track are guide grooves opened on the guide block; the inclination directions of the first track and the third track are opposite; the driving assembly drives the guide block to move axially, so that when the first clamp approaches and presses against the second clamp along the first track, the third clamp moves away from the first clamp along the third track.

[0014] Further, the driving component includes: a driving member, connected to the guiding component, or connected to the first clamp slidably connected to the first track, or connected to the second clamp slidably connected to the first track; an elastic member, arranged between the driving member and the guiding component; or, arranged between the driving member and the first clamp or the second clamp slidably connected to the first track; wherein, when the driving member is extended, the elastic member is compressed; when the driving member is retracted, the elastic restoring force of the elastic member can assist the guiding component, or the first clamp or the second clamp slidably connected to the first track to retract, so as to ensure that the first clamp presses the second clamp.

[0015] The winding needle provided in the present application includes a first clamp and a second clamp for clamping a substrate; one of the first clamp and the second clamp is slidably connected to a first track; the first track extends obliquely from the first clamp toward the second clamp; thereby, the driving component can drive the guide component, or the driving component can drive the first clamp or the second clamp slidably connected to the first track to move along the axial direction of the winding needle; at this time, the first clamp and the second clamp achieve relative movement through the first track; wherein the first track can convert the axial drive of the driving component into relative movement between the first clamp and the second clamp, thereby enabling the first clamp and the second clamp to simply and stably achieve clamping or releasing of the substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0017] Figure 1 It is a structural schematic diagram of an embodiment of a winding needle including a winding needle housing provided by the present application;

[0018] Figure 2 yes Figure 1 Left view of

[0019] Figure 3 It is a structural schematic diagram of an embodiment of a winding needle provided by the present application;

[0020] Figure 4 yes Figure 3 Schematic diagram of the exploded structure of the middle winding needle;

[0021] Figure 5 yes Figure 3 Schematic diagram of the mechanism of the guide assembly of the middle winding needle. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-5 The present application discloses a winding needle, comprising a first clamp 10 and a second clamp 20 for clamping a substrate, a guide assembly 30 and a drive assembly 40; the guide assembly 30 at least comprises a first track 31 obliquely extending from the first clamp 10 toward the second clamp 20, and one of the first clamp 10 and the second clamp 20 is slidably connected to the first track 31; the drive assembly 40 is capable of driving the guide assembly 30, or the drive assembly 40 is capable of driving the first clamp 10 or the second clamp 20 slidably connected to the first track 31 to move along the axial direction of the winding needle; wherein the first track 31 is capable of converting the axial drive of the drive assembly 40 into relative movement of the first clamp 10 and the second clamp 20.

[0024] It is easy to understand that the winding needle is used to clamp the substrate, and then drive the substrate to move after clamping the substrate; after the substrate is wound and formed, the winding needle needs to loosen the formed electrical component to facilitate the unloading of the electrical component; at the same time, the winding needle is loosened to allow new substrate to enter and achieve clamping again.

[0025] The first clamp 10 and the second clamp 20 are two parts used to clamp or release the substrate. The substrate enters between the first clamp 10 and the second clamp 20, and the substrate can be controlled through the relative movement of the two. The first clamp 10 and the second clamp 20 are separated from each other, and the substrate can enter the winding needle; the first clamp 10 and the second clamp 20 are close to each other and pressed against each other, and the substrate can be clamped by the winding needle.

[0026] Reference Figures 1 to 3 The winding needle has a certain length, and the length direction is the axial direction of the winding needle. The length of the winding needle should not be shorter than the width of the substrate to ensure that the substrate is clamped and facilitate the movement of the substrate.

[0027] One of the first clamp 10 and the second clamp 20 is slidably connected to the first track 31, and the other is relatively fixedly arranged. Take the first clamp 10 as an example, which is slidably connected to the first track 31 and the second clamp 20 is relatively fixedly arranged.

[0028] In one embodiment, the driving assembly 40 drives the guiding assembly 30 so that the first track 31 moves along the winding needle axis; at this time, the first clamp 10 passively moves along the first track 31 , approaching the second clamp 20 or moving away from the second clamp 20 .

[0029] In another embodiment, the driving assembly 40 drives the first clamp 10 to move along the axial direction of the winding needle; at this time, the first clamp 10 actively moves along the first track 31 , approaching the second clamp 20 or moving away from the second clamp 20 .

[0030] The first track 31 may be a guide member such as a guide rail, a cam, a mounting block with a guide surface, or the like; or Figure 4 and Figure 5 The first track 31 may also be a guide groove provided on the main body of the guide assembly 30; in this case, the guide assembly 30 may be a guide block, and the guide groove is provided on the guide block. A movable pin 14 is provided on the first clamp 10 or the second clamp 20 corresponding to the guide groove, and the movable pin 14 is inserted into the guide groove and can move along the guide groove; by setting the first track 31 as a guide groove, accessories can be reduced, the overall structure of the winding needle can be simplified, and the winding needle can be made into a desired size configuration.

[0031] Furthermore, in order to avoid relative axial movement between the first clamp 10 and the second clamp 20, which affects the clamping of the substrate, the first clamp 10 includes a clamp block 11 and a reel body 12; wherein the clamp block 11 is slidably connected to the first track 31; the reel body 12 and the second clamp 20 are relatively fixedly arranged, and there is a gap between the reel body 12 and the second clamp 20; the clamp block 11 is arranged inside the reel body 12, and the driving component 40 can drive the guide component 30 to move axially, so that the clamp block 11 approaches the second clamp 20 along the first track 31 to press against the second clamp 20 to clamp the substrate; or, the clamp block 11 moves away from the second clamp 20 along the first track 31 to release the substrate.

[0032] The second clamp 20 is relatively fixed and does not participate in the opening and closing of the winding needle; the reel body 12 is fixed relative to the second clamp 20 and does not participate in the opening and closing of the winding needle; the opening and closing of the winding needle is realized by the clamp block 11, and the clamp block 11 is moved close to or away from the second clamp 20 to clamp and release the substrate. At this time, the reel body 12 serves as a mounting seat on the one hand, which is convenient for limiting the movement of the clamp block 11; on the other hand, referring to Figure 1 and Figure 2 The outer surface of the reel body 12 and the second fixture 20 forms a cylindrical body, which is convenient for installing a suitable winding needle housing 60 according to the winding needs of the electrical component. Of course, the outer surface of the reel body 12 and the second fixture 20 can also be set into various shapes according to needs.

[0033] Specifically, the reel body 12 has a through hole, and the clamp block 11 can move in the through hole to approach or move away from the second clamp 20. After the clamp block 11 moves away from the second clamp 20, the substrate can be inserted into the gap between the reel body 12 and the second clamp 20; when the substrate is in place, the clamp block 11 presses against the second clamp 20, and the substrate can be clamped. By allowing the clamp block 11 to move in the reel body 12, the movement of the clamp block 11 can be prevented from interfering with other components.

[0034] Furthermore, multiple groups of clamping blocks 11 can be arranged side by side along the radial direction of the winding needle. After the substrate enters the winding needle, multiple clamping blocks 11 press against the second clamp 20 to press multiple positions of the substrate, thereby achieving a good pressing effect.

[0035] Furthermore, the ends of the reel body 12 and the second clamp 20 close to the substrate are provided with bell mouths to facilitate the substrate to enter between the reel body 12 and the second clamp 20 .

[0036] Reference Figures 1 to 3, the end of the reel body 12 and the second clamp 20 close to the substrate, that is, the end of the reel body 12 and the second clamp 20 away from the driving assembly 40. The so-called bell mouth means that the opening gradually narrows from the outside to the inside; thus, the large opening on the outside faces the substrate, and even if the initial position of the substrate is slightly deviated, the substrate can be within the opening range; the winding needle moves toward the substrate, and the gradually narrowing opening guides the substrate to finally enter between the reel body 12 and the second clamp 20. When the substrate completely enters the winding needle, the clamp block 11 approaches along the first track 31 until it presses against the second clamp 20, and the substrate can be clamped.

[0037] Furthermore, a fourth track 13 is provided on the clamping block 11, and the reel body 12 is slidably connected to the fourth track 13; or, a fourth track 13 is provided on the reel body 12, and the clamping block 11 is slidably connected to the fourth track 13; the fourth track 13 is set toward the second clamp 20, and when the clamping block 11 approaches or moves away from the second clamp 20, the fourth track 13 can limit the movement direction of the clamping block 11.

[0038] In a specific embodiment, when the driving component 40 drives the guide component 30 to move axially and drives the clamping block 11 to move along the first track 31 toward the second fixture 20, the first track 31 moves axially under the drive of the driving component 40, and guides the clamping block 11 to move through the displacement of the first track 31. In this process, if the movement direction of the clamping block 11 is not limited, the clamping block 11 may be driven by the first track 31 to produce axial movement. In other words, when the clamping block 11 is not limited, the guidance of the first track 31 will cause the clamping block 11 to move toward the second fixture 20, and the axial movement of the first track 31 will drive the clamping block 11 to move axially, making it difficult to control the movement trajectory of the clamping block 11, and it is impossible to ensure the clamping or loosening of the substrate.

[0039] By setting the fourth track 13, the clamping block 11 can be limited to move along the fourth track 13, approach or move away from the second clamp 20, and cannot generate axial movement. Under the limitation of the fourth track 13, when the driving component 40 drives the guide component 30 to move axially, the first track 31 moves axially; because the first track 31 extends obliquely, when the end of the first track 31 away from the second clamp 20 approaches the clamping block 11, the clamping block 11 moves away from the second clamp 20 along the first track 31, so that the winding needle opens to accommodate the substrate; the driving component 40 drives the guide component 30 to move in the opposite direction, and the end of the first track 31 close to the second clamp 20 approaches the clamping block 11, and the clamping block 11 approaches along the first track 31 to press against the second clamp 20, so that the winding needle closes to clamp the substrate.

[0040] It is easy to understand that the first clamp 10 and the second clamp 20 are arranged opposite to each other. At a specific angle, it can be considered that the first clamp 10 and the second clamp 20 are arranged opposite to each other in the vertical direction. At this time, the fourth track 13 extends in the vertical direction.

[0041] When the fourth track 13 is set on the clamping block 11, the reel body 12 is slidably connected to the fourth track 13; the winding needle opens and closes, the positions of the reel body 12 and the second clamp 20 are relatively fixed, and the fourth track 13 moves toward the second clamp 20, thereby guiding the clamping block 11 to move relative to the reel body 12 in the vertical direction.

[0042] When the fourth track 13 is set on the reel body 12, the clamp 11 is slidably connected to the fourth track 13; the winding needle opens and closes, the positions of the reel body 12 and the second clamp 20 are relatively fixed, the position of the fourth track 13 is also relatively fixed, and the clamp 11 moves along the fourth track 13 toward the second clamp 20.

[0043] The fourth track 13 may be a guide member such as a guide rail or a guide rod; or, Figure 4 and Figure 5 The fourth track 13 can also be a guide groove opened on the clamping block 11 or the reel body 12. A movable pin is provided on the reel body 12 or the clamping block 11 corresponding to the guide groove position. The movable pin is passed through the guide groove and can move along the guide groove. By setting the fourth track 13 as a guide groove, the accessories can be reduced, the overall structure of the winding needle is simplified, and the winding needle is conveniently made into a configuration of the required size.

[0044] In order to ensure that when the driving assembly 40 drives the guide assembly 30 to move, the guide assembly 30 can stably move in the axial direction without deviation, in one embodiment, the driving assembly 40 may include an axially extending guide member (not shown), and the guide assembly 30 is slidably connected to the guide member, and the guide member can limit the axial movement of the guide assembly 30. In this case, the guide member can be a guide rod, a guide rail, etc.

[0045] In another embodiment, the guide assembly 30 also includes a second track 32 extending axially, and the reel body 12 or the second clamp 20 is slidably connected to the second track 32; the positions of the reel body 12 and the second clamp 20 are relatively fixed, and when the driving assembly 40 drives the guide assembly 30 to move axially, the second track 32 can limit the movement direction of the guide assembly 30.

[0046] It is easy to understand that the reel body 12 and the second clamp 20 are both components whose positions are relatively fixed during the opening and closing action of the winding needle; when the guide assembly 30 moves relative to the reel body 12 or the second clamp 20, the second track 32 also moves relative to the reel body 12 or the second clamp 20; at this time, the position where the reel body 12 or the second clamp 20 is connected to the second track 32 will limit the second track 32 to move only along its own extension direction, thereby achieving the limitation of the axial movement of the guide assembly 30.

[0047] Preferably, since the clamping block 11 and the second clamp 20 cooperate as two parts of the opening and closing action of the winding needle, it is necessary to realize the clamping and release of the substrate. The sliding connection between the second track 32 and the second clamp 20 may affect the action of the clamping block 11 and increase the difficulty of setting. Therefore, the second track 32 is preferably slidably connected to the reel body 12.

[0048] The second track 32 may be a guide member such as a guide rail or a guide rod; or, Figure 4 and Figure 5 The second track 32 can also be a guide groove opened on the main body of the guide assembly 30. A movable pin is provided on the reel body 12 or the second track 32 corresponding to the guide groove position. The movable pin is passed through the guide groove and can move along the guide groove. By setting the second track 32 as a guide groove, accessories can be reduced, the overall structure of the winding needle can be simplified, and the winding needle can be made into a configuration of the required size.

[0049] Furthermore, when the guide assembly 30 is a guide block, the second track 32 is a guide groove provided on the main body of the guide assembly 30, and the fourth track 13 is a guide groove provided on the clamping block 11, the extension directions of the two groups of guide grooves can be set to intersect, and when the guide assembly 30 moves axially and the clamping block 11 moves relative to the second clamp 20, the intersection point of the two groups of guide grooves remains unchanged. In this case, only one group of movable pins can be set, and the movable pins pass through the clamping block 11 and the main body of the guide assembly 30 at the same time, and the two ends of the movable pins are connected to the reel body 12, and the position of the movable pins is limited by the reel body 12, so that the second track 32 and the fourth track 13 can only move along their own guide directions under the limitation of the movable pins, thereby ensuring that the guide assembly 30 can only move axially, and the clamping block 11 can only move toward the second clamp 20.

[0050] Furthermore, the winding needle further includes a third clamp 50 , the first clamp 10 is disposed between the second clamp 20 and the third clamp 50 , and the third clamp 50 can be close to or away from the first clamp 10 .

[0051] It should be noted that after the winding needle clamps the substrate, the winding needle rotates and the substrate is wound around the winding needle into an electrical component. After the electrical component is formed, the electrical component needs to be removed from the winding needle. At this time, the winding needle needs to be reopened so that the part of the substrate clamped by the winding needle can be removed from the winding needle; at the same time, the formed electrical component also needs to be clamped by an external unloading device so that the winding needle can be actively pulled out of the electrical component to realize the unloading of the electrical component.

[0052] In order to facilitate the unloading equipment to clamp the electrical components and prevent the unloading equipment from interfering with the winding needle action, it is necessary to reserve a certain insertion position in the wound electrical components to facilitate the unloading equipment (such as the clamping claw) to extend into the electrical components from the insertion position and cooperate inside and outside to clamp the electrical components.

[0053] It is understandable that the substrate is wound around the winding needle to eventually form an electrical component; during the winding process, in order to control the configuration of the electrical component, the substrate must be wound in a tensioned state; that is, after the electrical component is formed, it is tightly sheathed on the winding needle, and there is no "insertion position", and it is difficult for the unloading equipment to be inserted into the electrical component. Therefore, a third clamp 50 that can be close to or away from the first clamp 10 is provided. When the electrical component needs to be unloaded, the third clamp 50 is brought close to the first clamp 10 to expose the "insertion position" to facilitate the insertion of the unloading equipment; and when the winding needle clamps the substrate and prepares for a new round of winding, the third clamp 50 is away from the first clamp 10, stretching the entire winding needle so that the winding needle returns to the winding state.

[0054] It should be added that, according to the winding requirements of the component, the winding needle housing 60 disposed outside the winding needle is disposed around the entire winding needle; Figure 1 and Figure 2 The winding needle housing 60 is divided into at least four parts, including a first part 61 disposed on the second clamp 20, a second part 62 disposed on the third clamp 50, and a third part 63 and a fourth part 64 disposed between the first part 61 and the second part 62 and disposed on both sides of the first clamp 10. At this time, the second part 62 follows the movement of the third clamp 50 to expose the insertion position.

[0055] In order to drive the third clamp 50 to move, in one embodiment, an independent driving mechanism may be provided, such as a driving member such as a cylinder or an electric cylinder, to directly drive the third clamp 50 to move closer to or away from the first clamp 10 .

[0056] In another embodiment, the guide assembly 30 further includes a third track 33 , which extends obliquely from the third clamp 50 toward the first clamp 10 , and the third clamp 50 is slidably connected to the third track 33 , and the third clamp 50 can approach or move away from the first clamp 10 along the third track 33 .

[0057] In this embodiment, the cooperation mode of the first clamp 10, the third clamp 50 and the third track 33 is similar to the cooperation mode of the first clamp 10, the second clamp 20 and the first track 31; the relative movement of the first clamp 10 and the third clamp 50 is achieved by making the third track 33 move axially, or making one of the first clamp 10 and the third clamp 50 move axially. It will not be repeated here.

[0058] At this time, the third track 33 and the driving mechanism that drives the third track 33 (or one of the first clamp 10 and the third clamp 50) to move axially can be independent, as long as the third clamp 50 can be away from the first clamp 10 before the winding needle rotates, so that the winding needle returns to the winding shape; and when the electrical components need to be unloaded, the third clamp 50 can be close to the first clamp 10 to leave an insertion position.

[0059] Alternatively, to simplify the structure and operation, the third track 33, like the first track 31, can be a guide groove provided on the main body of the guide assembly 30. Specifically, the guide assembly 30 is a guide block, and the first track 31 and the third track 33 are guide grooves provided on the guide block; the clamping block 11 is slidably connected to the first track 31 through a movable pin; the third clamp 50 is slidably connected to the third track 33 through a movable pin; the first track 31 and the third track 33 are inclined in opposite directions; the driving assembly 40 drives the guide block to move axially, so that when the first clamp 10 approaches to press the second clamp 20 along the first track 31, the third clamp 50 moves away from the first clamp 10 along the third track 33.

[0060] Specific reference Figure 5 , the first track 31 extends upward from left to right and obliquely, and the third track 33 extends downward from left to right and obliquely; when the driving component 40 drives the guide block to move from left to right, the clamping block 11 moves downward along the first track 31 and under the limitation of the fourth track 13, so as to approach and press the second clamp 20, so that the winding needle clamps the substrate; at the same time, the third clamp 50 moves upward along the third track 33 to move away from the reel body 12 of the first clamp 10, so that the winding needle returns to the winding form, so as to wind out the electrical component of the required configuration. When the electrical component is formed and needs to be unloaded, the driving component 40 drives the guide block to move from right to left, so that the clamping block 11 moves away from the second clamp 20 along the first track 31, and the winding needle opens to release the clamped substrate; at the same time, the third clamp 50 approaches the reel body 12 of the first clamp 10 along the third track 33, exposing part of the interior of the electrical component and leaving a position for insertion.

[0061] It should be added that when a set of driving components 40 is used to drive the first track 31 and the third track 33 to move axially synchronously, it is necessary to ensure that the guide lengths of the first track 31 and the third track 33 are the same, or the guide length of the third track 33 is the same and not shorter than the guide length of the first track 31. Because the first track 31 is to ensure that the clamping block 11 abuts against or moves away from the guide track of the second clamp 20, that is, to ensure the opening and closing of the winding needle, the stroke of the first track 31 must meet the needs of the winding needle to clamp or loosen the substrate. At this time, if the stroke of the third track 33, that is, the guide length, is shorter than the stroke of the first track 31, it will prevent the clamping block 11 from abutting against or moving away from the second clamp 20, causing the winding needle to fail to open and close.

[0062] However, for the third fixture 50, the extent of the exposed insertion position close to the first fixture 10 does not need to be too large, otherwise the configuration of the electrical component may be affected. Therefore, the portion of the third track 33 extending obliquely from the third fixture 50 toward the first fixture 10 does not need to be too long to limit the range of motion of the third fixture 50.

[0063] At this time, in order to compensate for the third rail 33 so that the stroke of the third rail 33 is not shorter than the stroke of the first rail 31, the third rail 33 includes a guide rail segment A 331 extending obliquely from the third clamp 50 toward the first clamp 10, and a guide rail segment B 332 connected to one end of the guide rail segment A 331 and extending axially; and / or a guide rail segment C 333 connected to the other end of the guide rail segment A 331 and extending axially; wherein, when the third clamp 50 moves to the guide rail segment B 332 or the guide rail segment C 333, the distance between the third clamp 50 and the first clamp 10 no longer changes.

[0064] It is easy to understand that the A rail segment 331 is indispensable for the third track 33. When the third clamp 50 moves to the inclined A rail segment 331, it can descend along the A rail segment 331 to approach the first clamp 10, or ascend along the A rail segment 331 to move away from the first clamp 10. The main purpose of the B rail segment 332 and the C rail segment 333 is to compensate for the stroke of the A rail segment 331 and ensure that the third track 33 is not shorter than the first track 31. Therefore, the B rail segment 332 or the C rail segment 333 can be set at only one end of the A rail segment 331, or the B rail segment 332 and the C rail segment 333 can be set at both ends of the A rail segment 331. When the third clamp 50 moves to the B rail segment 332 or the C rail segment 333, the relative distance between the third clamp 50 and the first clamp 10 no longer changes.

[0065] Furthermore, by providing the axially extending B rail segment 332 and / or C rail segment 333, it can be ensured that when the third clamp 50 reaches the desired position (away from the first clamp 10, so that the winding needle returns to the winding state; or close to the first clamp 10, exposing the insertion position), the position is relatively stable, and there is no possibility of sliding because the third clamp 50 is in the inclined track. At this time, the third track 33 preferably includes the A rail segment 331, the B rail segment 332 and the C rail segment 333.

[0066] Furthermore, in order to prevent the third clamp 50 from being affected by the axial movement of the third track 33 when it approaches or moves away from the first clamp 10, it is also necessary to limit the movement direction of the third clamp 50 so that the third clamp 50 can only approach or move away from the first clamp 10. At this time, a fifth track 51 may be provided between the third clamp 50 and the first clamp 10, and the fifth track 51 points to the first clamp 10; wherein, the cooperation among the first clamp 10, the third clamp 50 and the fifth track 51 is similar to the cooperation among the clamp block 11, the reel body 12 and the fourth track 13, and will not be described in detail here.

[0067] In a specific embodiment, in order to simplify the structure of the entire winding needle, refer to Figure 4 and Figure 5, the fifth track 51 can be a guide groove arranged on the third clamp 50. At the same time, when the second track 32 is a guide groove arranged on the main body of the guide component 30 and the fourth track 13 is a guide groove arranged on the clamping block 11, the extension directions of the three groups of guide grooves intersect, and when the guide component 30 moves axially, the clamping block 11 moves relative to the second clamp 20, and the third clamp 50 moves relative to the reel body 12, the intersection point of the three groups of guide grooves remains unchanged; at this time, only one group of movable pins can be set, and the movable pin passes through the clamping block 11, the main body of the guide component 30 and the third clamp 50 at the same time, and the two ends of the movable pin are connected to the reel body 12, and the position of the movable pin is limited by the reel body 12, so that the second track 32, the fourth track 13, and the fifth track 51 can only move along their own guide directions under the limitation of the movable pin, thereby ensuring that the guide component 30 can only move axially, the clamping block 11 can only move toward the second clamp 20, and the third clamp 50 can only move toward the reel body 12.

[0068] Furthermore, the first track 31 and the third track 33 may also be guide grooves arranged on the main body of the guide assembly 30, that is, the guide block; in this case, the guide block is provided with guide grooves of the first track 31, the second track 32 and the third track 33; the clamping block 11 is slidably connected to the guide groove of the first track 31 through a movable pin; the reel body 12 is slidably connected to the second track 32 through a movable pin that penetrates the clamping block 11, the guide block and the third clamp 50; the third clamp 50 is slidably connected to the third track 33 through a movable pin.

[0069] Since the winding needle has a certain length, a plurality of guide grooves of the first track 31, the second track 32 and the third track 33 can be provided on the guide block to ensure that each position of the winding needle can stably move along the guide grooves.

[0070] The winding needle driving assembly 40 provided in the present application includes a driving member 41, which is connected to the guide assembly 30, or connected to the first clamp 10 slidably connected to the first track 31, or connected to the second clamp 20 slidably connected to the first track 31; an elastic member 42, which is arranged between the driving member 41 and the guide assembly 30; or, is arranged between the driving member 41 and the first clamp 10 or the second clamp 20 slidably connected to the first track 31; wherein, when the driving member 41 is extended, the elastic member 42 is compressed; when the driving member 41 is retracted, the elastic restoring force of the elastic member 42 can assist the guide assembly 30, or the first clamp 10 or the second clamp 20 slidably connected to the first track 31 to be retracted, so as to ensure that the first clamp 10 presses the second clamp 20 tightly.

[0071] The driving member 41 may be a cylinder, and the output end of the cylinder is connected to the guide assembly 30, or connected to the first clamp 10 or the second clamp 20 slidably connected to the first track 31. The output end of the cylinder has two states: extension and retraction. Since the precision of the cylinder output is not high, it cannot be guaranteed that the distance of each extension is constant; in order to ensure that the first clamp 10 presses the second clamp 20, it is preferably set that when the output end of the cylinder is retracted, the first clamp 10 and the second clamp 20 move toward each other. At this time, as long as the output end of the cylinder is retracted to the initial state, the first clamp 10 can be guaranteed to press the second clamp 20.

[0072] Furthermore, in order to prevent the cylinder from losing its force and failing to recover the output end to its initial state, which would affect the first clamp 10 from pressing the second clamp 20, an elastic member 42 is provided at the output end of the cylinder, one end of the elastic member 42 presses against the output end of the cylinder, and the other end presses against the object connected to the cylinder. Thus, when the output end of the cylinder is extended, the first clamp 10 is away from the second clamp 20, and the elastic member 42 is compressed; when the output end of the cylinder is recovered, the first clamp 10 is close to the second clamp 20, and the elastic member 42 rebounds, so that the output end is quickly and accurately recovered to its initial state, and the first clamp 10 and the second clamp 20 are clamped.

[0073] Furthermore, in a specific embodiment, the winding needle is used in a multi-station winding machine. It is used to wind the substrate so that the substrate constitutes an electrical component. In the multi-station winding machine, a plurality of winding needles are provided, each winding needle is in a working station, and performs different stages of processing on the substrate. After one stage of processing is completed, the winding machine revolves, so that the winding needle is transferred to the next station. During the revolution, the air supply of the cylinder may be interrupted. If the cylinder is recovered or extended to ensure that the first clamp 10 is pressed against the second clamp 20, the clamping of the winding needle will fail when the air supply is interrupted. Therefore, by providing an elastic member 42 and utilizing the elastic force of the elastic member 42 to ensure the clamping effect of the first clamp 10 and the second clamp 20, the cylinder can be prevented from losing force.

[0074] Specific reference Figure 1 or Figure 3 The driving assembly 40 further includes a linkage rod 43, one end of which is connected to the output end of the cylinder, and the other end is connected to the guide assembly 30, or the other end is connected to the first clamp 10 or the second clamp 20 slidably connected to the first track 31. The linkage rod 43 has a section with a smaller diameter in the middle, and the elastic member 42 is a spring, which is sleeved on the section with a smaller diameter of the linkage rod 43. One end of the spring close to the cylinder presses against the part with a larger diameter of the linkage rod 43, and the other end presses against the guide assembly 30, or the first clamp 10 or the second clamp 20 slidably connected to the first track 31, thereby realizing elastic action and ensuring that the cylinder is recovered quickly and stably.

[0075] Furthermore, the connecting rod 43 is arranged to extend along the axial direction of the winding needle, and the connecting rod 43 can move axially under the drive of the driving member 41 and extend into the interior of the winding needle. That is to say, the connecting rod 43 can also play a guiding role, improve the stability of the compression and recovery of the elastic member 42, and ensure the use effect of the elastic member 42.

[0076] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or components is not limited to the listed steps or components, but may optionally include steps or components not listed, or may optionally include other steps or components inherent to these processes, methods, products or apparatuses.

[0077] The above description is only an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A needle coil, characterized in that: include: A first clamp (10) and a second clamp (20) for clamping a substrate; a guide assembly (30), the guide assembly (30) comprising a first track (31) extending obliquely from the first clamp (10) toward the second clamp (20), one of the first clamp (10) and the second clamp (20) being slidably connected to the first track (31); a driving assembly (40), wherein the driving assembly (40) is capable of driving the guide assembly (30), or the driving assembly (40) is capable of driving the first clamp (10) or the second clamp (20) slidably connected to the first track (31) to move along the axial direction of the winding needle; Wherein, the first track (31) is capable of converting the axial drive of the driving assembly (40) into relative movement between the first clamp (10) and the second clamp (20); The first clamp (10) comprises: A clamping block (11) slidably connected to the first track (31); The reel body (12) is fixedly arranged relative to the second clamp (20), and there is a gap between the reel body (12) and the second clamp (20); The clamping block (11) is arranged inside the reel body (12), and the driving assembly (40) is capable of driving the guide assembly (30) to move axially, so that the clamping block (11) moves along the first track (31) close to the second clamp (20) to clamp the substrate; or, the clamping block (11) moves along the first track (31) away from the second clamp (20) to release the substrate; The reel body (12) is provided with a through hole, and the clamping block (11) is movable in the through hole.

2. The winding needle according to claim 1, characterized in that: The clamping block (11) is provided with a fourth track (13), and the reel body (12) is slidably connected to the fourth track (13); or, the reel body (12) is provided with a fourth track (13), and the clamping block (11) is slidably connected to the fourth track (13); the fourth track (13) is arranged toward the second clamp (20), and when the clamping block (11) approaches or moves away from the second clamp (20), the fourth track (13) can limit the movement direction of the clamping block (11).

3. The winding needle according to claim 1 or 2, characterized in that: The guide assembly (30) further comprises a second track (32) extending in the axial direction, and the reel body (12) or the second clamp (20) is slidably connected to the second track (32); when the driving assembly (40) drives the guide assembly (30) to move in the axial direction, the second track (32) can limit the movement direction of the guide assembly (30).

4. The winding needle according to claim 1, characterized in that: The ends of the reel body (12) and the second clamp (20) close to the substrate are provided with bell mouths, so as to facilitate the substrate to enter between the reel body (12) and the second clamp (20).

5. The winding needle according to claim 1, characterized in that: It also includes a third clamp (50), wherein the first clamp (10) is arranged between the second clamp (20) and the third clamp (50), and the third clamp (50) can be moved closer to or farther away from the first clamp (10).

6. The winding needle according to claim 5, characterized in that: The guide assembly (30) further comprises a third track (33), wherein the third track (33) extends obliquely from the third clamp (50) toward the first clamp (10), the third clamp (50) is slidably connected to the third track (33), and the third clamp (50) can move closer to or farther away from the first clamp (10) along the third track (33).

7. The winding needle according to claim 6, characterized in that: The third track (33) comprises a guide rail section A (331) extending obliquely from the third fixture (50) toward the first fixture (10), and further comprises: A guide rail segment (332) connected to one end of the guide rail segment (331) and extending in the axial direction; and / or a C guide rail segment (333), connected to the other end of the A guide rail segment (331) and extending in the axial direction; Wherein, when the third clamp (50) moves to the B guide rail section (332) or the C guide rail section (333), the distance between the third clamp (50) and the first clamp (10) no longer changes.

8. The winding needle according to claim 6 or 7, characterized in that: The guide assembly (30) is a guide block, and the first track (31) and the third track (33) are guide grooves provided on the guide block; the first track (31) and the third track (33) are inclined in opposite directions; the drive assembly (40) drives the guide block to move axially, so that when the first clamp (10) moves along the first track (31) close to the second clamp (20) and presses against the second clamp (20), the third clamp (50) moves away from the first clamp (10) along the third track (33).

9. The winding needle according to claim 1, characterized in that: The driving assembly (40) comprises: a driving member (41) connected to the guide assembly (30), or connected to the first clamp (10) slidably connected to the first track (31), or connected to the second clamp (20) slidably connected to the first track (31); an elastic member (42) disposed between the driving member (41) and the guide assembly (30); or, disposed between the driving member (41) and the first clamp (10) or the second clamp (20) slidably connected to the first track (31); When the driving member (41) is extended, the elastic member (42) is compressed; when the driving member (41) is retracted, the elastic restoring force of the elastic member (42) can assist the guide assembly (30), or the first clamp (10) or the second clamp (20) slidably connected to the first track (31) to be retracted, so as to ensure that the first clamp (10) presses the second clamp (20).

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