CN209970001U - Wire feeding device - Google Patents

Abstract

Wire feeding device, can be used to have silk thread, silk thread when the lens suspension ware of shell fragment assembles at least send the line, include: a wire feeding portion including a coil supporting portion that supports a wire coil, the coil supporting portion being capable of rotating around an axis thereof to feed out a wire, a wire pulling portion that is provided in front of a wire feeding direction and includes a pulling portion and a clamping portion capable of clamping a front end of the wire, the clamping portion being mounted on the pulling portion, the pulling portion feeding the wire clamped by the clamping portion to a predetermined position; and a cutting portion provided at a position where the yarn located in front of the wire feeding portion can be cut. The utility model discloses a send silk thread device can realize that the automation of the silk thread of camera lens suspension ware send the line.

Description

Wire feeding device

Technical Field

The utility model relates to an automatic technical field of mill especially relates to send traditional thread binding putting.

Background

With the development of various electronic products such as digital cameras, computers, tablet computers, smart phones and the like, higher and higher requirements are also put forward on the camera shooting function of the electronic products. Lens suspensions (OIS assemblies) that are often used in camera lenses for high-quality images are also used in these electronic products.

The lens suspension generally includes a base, a lens carrier, a coil, a spring, a wire, and the like. Wherein the thread is fixed on the elastic sheet. Since the overall size of the lens suspension of the camera system is small, the assembly difficulty is very high, and especially for fine wires, the wire feeding of the wires is very difficult.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the silk thread to camera lens suspension is difficult to send the technical problem of line, has provided a thread feeding device.

Wire feeding device, can be used to have silk thread, silk thread when the lens suspension ware of shell fragment assembles at least send the line, include: a wire feeding portion including a coil supporting portion that supports a wire coil, the coil supporting portion being capable of rotating around an axis thereof to feed out a wire, a wire pulling portion that is provided in front of a wire feeding direction and includes a pulling portion and a clamping portion capable of clamping a front end of the wire, the clamping portion being mounted on the pulling portion, the pulling portion feeding the wire clamped by the clamping portion to a predetermined position; and a cutting portion provided at a position where the yarn located in front of the wire feeding portion can be cut.

Preferably, the wire feeding wire portion further includes a coil driving portion coupled with the coil support portion and driving the coil support portion to rotate about an axial center thereof.

Further preferably, the wire feeder further comprises a wire storage portion disposed between the wire feeding portion and the wire pulling portion.

Preferably, the thread storage part has: at least two guide rollers for guiding the thread fed out from the thread feeding portion, the clamping portion clamping the thread fed out via the guide rollers; two of the guide rollers are arranged along the horizontal direction, and the adjusting part is arranged between the guide rollers arranged along the horizontal direction, is hung by a silk thread and can move in the vertical direction; and the detectors are arranged at least two, wherein at least one detector is arranged above and below the adjusting part respectively.

Preferably, the drawing part includes a three-axis robot, the grip part is installed on the three-axis robot, and the three-axis robot includes a first axis robot driven using a motor, the first axis robot being driven in a feeding-out direction of the filament.

Further preferably, the three-axis manipulator further comprises a second-axis manipulator, the driving direction of the second-axis manipulator is perpendicular to the driving direction of the first-axis manipulator in the horizontal direction, the second-axis manipulator is an electric sliding table, and the second-axis manipulator is installed on the first-axis manipulator.

Preferably, the thread drawing part is provided with a thread guide part at the rear of the clamping part, and the thread guide part is mounted on the traction part.

Further preferably, the yarn guiding portion includes a pin shaft mounting seat, and a lower pin shaft, an upper pin shaft, and a side pin shaft respectively mounted on the pin shaft mounting seat, and a limiting space allowing the yarn to pass is formed between the lower pin shaft, the upper pin shaft, and the side pin shaft.

Preferably, the cutting portion includes a galvanometer laser disposed at a position where a working area thereof can cover the filament.

Further preferably, the laser cutting device further comprises a peeling portion which is provided between the wire feeding portion and the wire drawing portion, and the peeling portion and the cutting portion share one galvanometer laser.

The utility model discloses a send silk thread device can realize sending the line of camera lens suspension's silk thread.

Drawings

Fig. 1 is a perspective view of a rear view of an embodiment of a thread feeder having a thread feeding device according to the present invention;

fig. 2 is a perspective view of the wire feeding device of the present invention;

FIG. 3 is a perspective view of the wire feed portion and the wire storage portion of FIG. 2;

FIG. 4 is a perspective view of the wire pull portion of FIG. 2;

fig. 5 is a simplified schematic diagram of an embodiment of a lens suspension, wherein (a) shows the lens suspension as viewed from above, and (b) shows the relative positions of the engagement of the wires and springs of the lens suspension.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the present invention can be implemented in many different ways, and is not limited to the embodiments described herein, but rather, these embodiments are provided to enable those skilled in the art to understand the disclosure more thoroughly.

Further, the description of illustrative embodiments in accordance with the principles of the invention is intended to be read in connection with the accompanying drawings, which are to be considered part of the entire written description. In describing the disclosed embodiments of the present invention, reference to any direction or orientation is intended only for convenience of illustration and is not intended to limit the scope of the present invention in any way. Relative terms such as "front," "back," "upper," "lower," "rear," "outer," "inner," "middle," "inner," "outer," "lower," "upper," "horizontal," "vertical," "above," "below," "up," "down," "top" and "bottom") and derivatives thereof (e.g., "horizontally," "downwardly," "upwardly," etc.) should be construed to refer to the orientation as then described or as shown in the drawing under discussion. These relative terms are for convenience of description only and do not require that the apparatus be constructed or operated in a particular orientation unless otherwise specifically stated. The invention should therefore not be limited to the exemplary embodiments which illustrate some possible non-limiting combinations of features which may be present alone or in other feature combinations; the scope of protection of the invention is defined by the appended claims.

As presently contemplated, this disclosure describes the best mode or mode of practice of the invention. The present invention is not intended to be construed as limited to the particular embodiments shown, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. Like reference characters designate like or similar parts throughout the various views of the drawings.

Fig. 5 is a simplified schematic diagram of an embodiment of the lens suspension, in which (a) shows the lens suspension 100 viewed from a top view, and (b) shows a partially enlarged view of the relative positions of the engagement of the wires 101 and the resilient pieces 102 of the lens suspension 100. For ease of understanding, first, a basic process of threading the yarn 101 will be described with reference to (a) and (b) of fig. 5. In the lens suspension 100, a Shape Memory alloy (Shape Memory Alloys) wire 101, referred to as a wire 101 for short, and a spring plate 102 are included, the plurality of wires 101 form a Shape surrounding the peripheral edge of the spring plate 102 and are respectively fixed to the spring plate 102, specifically, the outer side (peripheral edge) of the spring plate 102 is provided with a plurality of bending edges (also referred to as clamping jaws) 102a, and two bending edges 102a on the same side fix one wire 101. Herein, the same side means: one side of the same side of the spring plate 102. If the spring 102 is quadrilateral, it has four sides, and similarly, if the spring 102 is hexagonal or octagonal, it has six sides or eight sides. The two bent edges 102a located on the same side are respectively located at two ends of one side of the elastic sheet 102 and respectively attached to the elastic sheet main body 102b to press the wire 101. The number of sides of the spring 102 is the same as the number of wires 101, for example, when the spring 102 is a quadrilateral, there are four wires 101. In addition, although the lens suspension 100 of the present invention fixes one silk thread 101 to the two bending sides 102a on the same side, the present invention is not limited thereto, and due to different processes, there may be a possibility that one bending side 102a holds one silk thread 101, or more than two bending sides 102a hold one silk thread 101, which is not listed here. Before press fitting, the angle between the bending edge 102a and the spring main body 102b may be a preset angle, for example, 30-60 degrees, before the thread 101 is press fitted, the thread is pulled between the bending edge 102a and the spring main body 102b, then the bending edge 102a is pressed to the spring main body 102b and is attached to the spring main body 102b, so that the thread 101 is pressed onto the spring 102, and the thread-feeding work of the thread 101 is completed.

Fig. 1 is a perspective view of a rear view of an embodiment of a thread feeder having a thread feeding device 300 according to the present invention, and fig. 2 is a perspective view of the front view of the thread feeding device 300; fig. 3 is a perspective view of the wire feeding portion 1 and the wire storage portion 6. Referring to fig. 1, 2 and 3, the thread winding machine includes: a base station 8, and a wire feeding device 300 is arranged on the base station 8. The wire feed line device 300 includes a wire feed line portion 1, and in the present embodiment, the wire feed line portion 1 includes a coil support portion 11 and a coil driving portion 12, the coil support portion 11 supports the wire coil 103, and the coil driving portion 12 is coupled to the coil support portion 11 and drives the coil support portion 11 to rotate about its axial center (i.e., the axial center of the coil support portion 11) to feed out the wire 101. The roll supporting portion 11 may be a supporting shaft, the roll driving portion 12 may be a motor, such as a stepping motor, a servo motor, etc., the supporting shaft and the motor may be coupled through a coupling, and the motor drives the supporting shaft to rotate around the axis of the supporting shaft. The thread roll 103 is a raw material roll, and here, the thread roll 103 is stored in a wound manner, and a through long hole may be provided in the middle of the thread roll 103 for inserting the thread roll 103 into the support shaft, and the thread roll 103 is rotated by a motor to feed out the thread 101. By driving the yarn package 103 to feed the yarn using the package driving unit 12, the yarn 101 can be pulled out by the yarn pulling unit 3 (see fig. 4) described below, and the yarn 101 can be prevented from being torn due to an excessively large pull-out damping. It should be noted that the method of feeding the yarn by rotating the yarn winding 103 by the motor is only a preferable method, and if the strength of the yarn is sufficiently strong due to improvement of the process, improvement of the material, or the like, the motor drive may not be used, and instead, a damper or the like known to those skilled in the art may be used.

In the conventional lens suspension, since the thread 101 is very thin, the thread 101 is further prevented from being broken when the thread 101 is fed out by the thread drawing section 3. Preferably, a thread storage part 6 is further included, and the thread storage part 6 is disposed forward in the feeding direction of the thread 101. Here, both the front and the rear are relative to the feeding direction of the thread 101, and if the thread 101 is fed from the thread feeding portion 1 and reaches the thread storage portion 6, the thread storage portion 6 is located forward of the thread feeding portion 1 in the feeding direction of the thread 101, and the thread feeding portion 1 is located rearward of the thread storage portion 6 in the feeding direction of the thread 101.

The thread storage unit 6 is provided in front of the thread feeding portion 1, and the thread storage unit 6 includes: the two or more (including two) guide rollers 61, and the yarn 101 fed from the yarn feeding portion 1 is fed to the below-described yarn stretching portion 3 via these guide rollers 61, and is nipped by the below-described nip portion 31. At least two of the guide rollers 61 are arranged in the horizontal direction, the adjusting part 62 is hung between the two horizontally arranged guide rollers 61 by the wire 101, the adjusting weight can be used for the adjusting part 62, and the weight of the adjusting weight can be selected according to actual needs, for example, the weight of 1.6g can be selected.

In order to monitor the storage of the yarn 101 in the yarn storage unit 6, the yarn storage unit 6 may be provided with at least two detectors 63, and the detectors 63 may be, for example, a correlation type photoelectric sensor, a reflection type photoelectric sensor, a proximity switch, a stroke switch, or the like, preferably a correlation type photoelectric sensor. The detectors 63 are provided above and below the adjusting weight (adjusting portion) 62, respectively, to detect the lower limit position of the adjusting weight 62 (i.e., when the wire 101 is stored most) and the upper line position of the adjusting weight 62 (i.e., when the wire 101 is stored least), respectively. Of course, the detectors 63 may be provided in two or more numbers, each of which is set to an alarm position (i.e., a position where an alarm is given when the adjusting weight 62 is detected by a certain detector), a stop position (i.e., a position where the adjusting weight 62 must be forcibly stopped when detected by a certain detector), and the like.

In addition, in order to store more threads 101, the guiding rollers 61 may further include a plurality of sets, for example, the guiding rollers 61 may further include guiding rollers 61 distributed along the vertical direction, and the threads 101 are respectively clamped by the clamping portion 31 via the guiding rollers 61 distributed along the vertical direction and then via two rollers distributed along the horizontal direction.

In the present embodiment, the adjusting weight is used for the adjusting portion 62 of the thread storage portion 6, but the present invention is not limited thereto, and a spring or the like having a very weak output force may be used for the adjusting portion 62.

A thread drawing part 3 is provided in front of the thread feeding part 1, and further, when a thread storage part 6 is present, the thread drawing part 3 is provided in front of the thread storage part 6.

Fig. 4 is a perspective view of the wire portion 3. Referring to fig. 4, as described above, the thread 101 is fed out from the thread storage unit 6 through the thread take-up unit 3. And a wire drawing part 3 including a clamping part 31 and a pulling part 32, wherein the clamping part 31 is attached to the pulling part 32, the clamping part 31 clamps the tip of the wire 101 fed from the wire drawing part 1, and the pulling part 32 feeds the wire 101 clamped by the clamping part 31 to a predetermined position. Here, the preset position refers to the first positioning portion 2 for positioning and fixing the lens suspension. It should be noted that the first positioning portion 2 may include a supporting base for supporting the lens suspension, a reference positioning portion such as a positioning block, a positioning pin, etc. for positioning the lens suspension, and a clamping device such as an air cylinder, etc. for clamping the OIS.

The traction portion 32 may include a three-axis manipulator, and a stroke of the traction portion 32 at least covers a predetermined position, that is, a position of the first positioning portion 2, that is, a stroke of an axis of the three-axis manipulator driven in a feeding direction of the filament 101, at least covers the first positioning portion 2, so that the driving clamping portion 31 clamps the filament 101 at a rear of the first positioning portion 2, pulls the filament to a front of the first positioning portion 2, and feeds the filament 101 between the bent edge 102a and the elastic sheet main body 102 b. The clamping portion 31 may use a clamping jaw known in a winding machine, such as a pneumatic clamping jaw. In addition, in another preferred embodiment, the clamping portion 31 may include a fixed first clamping jaw 311 and a movable second clamping jaw 312, the second clamping jaw 312 being hinged to a clamping jaw driving cylinder 313. The opening and closing of the clamp portion 31 is realized by the driving of the jaw driving cylinder 313, and the clamping accuracy of the clamp portion 31 can be improved by providing the fixed first clamping jaw 311 with the first clamping jaw 311 as a positioning reference. In order to prevent the wire 101 from being clamped by the first clamping jaw 311 and the second clamping jaw 312 in a failure due to deviation when the first clamping jaw 311 and the second clamping jaw 312 clamp the wire 101, a positioning hole may be formed in the first clamping jaw 311, and a positioning pin matched with the positioning hole may be formed in the second clamping jaw 312.

Although the three-axis robot of the drawing part 32 may use a known robot (whether air cylinder-driven or motor-driven), it is preferable that the first axis robot 321 of the three-axis robot, which is driven in the feeding direction of the wire 101, is a single axis robot driven by a motor in order to prevent the wire from being broken during the wire drawing process, and further, since the distance is very short and the position is required to be very precise when the wire 101 is fed between the bending edge 102a and the spring main body 102b, the second axis robot 322 of the three-axis robot, which feeds the wire between the bending edge 102a and the spring main body 102b, is preferably a precision type electric slide table, the driving direction of the second axis robot 322 is perpendicular to the driving direction of the first axis robot 321 in the horizontal direction (i.e., the direction parallel to the base 8), the grip part 31 is mounted on the third axis robot 323, the third axis robot 323 may be a slide cylinder, is mounted on the second axis robot 322 with its driving direction perpendicular to the horizontal direction.

Further, in order to prevent the thread 101 from being torn off due to the deflection of the thread 101 during drawing, the thread drawing portion 3 is provided with a thread guide portion 33 behind the nip portion 31, i.e., in the opposite direction to the feeding direction of the thread 101, and the thread guide portion 33 is attached to the drawing portion 31. The wire guide 33 may include a pin mount 334, and a lower pin 331, an upper pin 332, and a side pin 333 that are mounted on the pin mount 334, respectively. The three pins 331, 332, and 333 are respectively located at the lower side, the upper side, and the left side or the right side of the thread 101, and form a restriction space allowing the thread 101 to pass through, the lower pin 331 and the upper pin 332 restrict vertical deflection of the thread 101, respectively, and the side pin 33 restricts horizontal deflection of the thread 101 toward the lens suspension 100.

Of course, the yarn guide 33 is not limited to the above-described embodiment, and a thin tube such as a copper tube may be used to guide the yarn 101 by forming a restriction space allowing the yarn to pass through by using an internal cavity of the thin tube.

When the front end of the yarn 101 is held by the holding portion 31 and the rear end of the yarn 101 is wound on the yarn package 103, and the holding portion 31 is stationary and the motor of the package driving portion 12 is driven in the feeding direction of the yarn 101, or the speed of the holding portion 31 is slower than the feeding speed of the yarn 101 of the package driving portion 12, the amount of the fed yarn 101 increases and the yarn is stored by the weight of the adjustment weight 62, and at this time, the adjustment weight 62 moves downward due to the increase in the amount of the yarn 101. When the motor of the winding drive unit 12 is stopped and the holding unit 31 is operated, or the operation of the holding unit 31 is faster than the feeding speed of the yarn 101 from the winding drive unit 12, the yarn 101 in the yarn storage unit 6 is decreased, and at this time, the adjusting weight 62 is moved upward. When the operation of the clamping portion 31 is faster than the speed of feeding the thread 101 from the winding drive portion 12, the thread 101 can be prevented from being pulled apart because the clamping portion 31 pulls the thread 101 against the weight of the adjusting weight 62 without straightening the thread 101.

A peeling unit 7 is provided in front of the yarn accumulating unit 6. Referring to fig. 1 and 2, the peeling of the yarn 101 means that a protective layer covering the surface of the yarn 101 is removed, and the peeling may be performed by using the laser 71 (i.e., the protective layer of the yarn 101 is cut), specifically, the laser 71 may be disposed above the fed yarn 101 and the peeling may be performed by driving the laser by a three-axis robot. Of course, the position of the laser 71 is not limited as long as its working area (e.g., focal length) encompasses the position of the filament. Since the area of the wire 101 that is being stripped is very small, and the galvanometer laser can operate over a range of areas, in this embodiment, the galvanometer laser 71 is preferred for stripping. When peeling is performed using the galvanometer laser 71, it is not necessary to provide another driving unit, but only the galvanometer laser 71 is required to be mounted above the feed direction of the wire 101 via a mounting bracket, and an adjusting screw may be provided to adjust the focal length of the galvanometer laser 71. Here, the laser 71 may be a laser known in the art, and may be any laser used in the fields of laser cutting, laser cleaning, and the like, as long as the process can be applied to the wire 101.

In addition, it should be noted that the laser peeling process of the peeling part 7 is only for the case when the surface of the yarn 101 is covered with the protective layer, and if the protective layer is not needed on the surface of the yarn 101 due to the improvement of the process, the yarn 101 may be directly sent out from the yarn roll 103 for use, and the peeling part 7 may not be needed.

With continued reference to fig. 1 and 2, a cutting portion 5 is further included, the cutting portion 5 is disposed in front of the peeling portion 7, and preferably, the cutting portion 5 and the peeling portion 7 can share a galvanometer laser 71. Similarly, the cutting portion 5 may be provided at a position where the wire positioned between the first positioning portion 2 and the wire feed portion 1 described below can be cut, regardless of the galvanometer laser 71 or another laser. When the thread pulling portion 3 pulls the thread 101 between the bent edge 102a and the shell fragment main body 102b and the below-described press-fitting portion 4 presses the thread 101, the thread pulling portion 3 drives the holding portion 31 to move in the direction opposite to the direction in which the thread 101 is fed out, and holds the thread 101 to be pulled in between the bent edge 102a and the shell fragment main body 102b, and at this time, the galvanometer laser 71 cuts the thread 101 at a position between the holding portion 31 and the lens suspension 100.

In the embodiment, the cutting part 5 and the peeling part 7 commonly use the galvanometer laser 71, so that the space required by the thread threading machine can be greatly reduced, and the space required by cutting the thread 101 by using the galvanometer laser is very small, so that the cutting precision of the thread 101 can be improved, and the waste of the thread 101 can be avoided. Of course, the cutting portion 5 may also use a conventional cutting structure such as one having a cutting blade.

After the thread feeding device 300 finishes the thread feeding of the lens suspension, the thread feeding machine may perform other actions such as thread picking, press fitting, and the like. Since this part is not a protection of the present invention, the detailed description thereof will not be provided herein.

In addition, it should be noted that the wire feeding device 300 of the present invention can be applied to products similar to silk wires, such as copper wires, by those skilled in the art.

The various features described in the foregoing detailed description may be combined in any manner and, for the sake of unnecessary repetition, the invention is not limited in its scope to the particular combinations illustrated.

The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the scope of the present invention should be construed as being included in the technical solutions of the present invention.

Claims (10)

1. Send silk thread device, silk thread send line when can be used to have the camera lens suspension ware assembly of silk thread, shell fragment at least, its characterized in that includes:

a wire feeding portion including a coil support portion that supports a wire coil, the coil support portion being rotatable about an axis thereof to feed out a wire;

a thread pulling part which is arranged in front of the thread sending direction and comprises a traction part and a clamping part capable of clamping the front end of the thread, wherein the clamping part is arranged on the traction part, and the traction part sends the thread clamped by the clamping part to a preset position;

and a cutting portion provided at a position where the yarn located in front of the wire feeding portion can be cut.

2. The wire feed device of claim 1, wherein the wire feed wire portion further comprises a coil drive portion coupled to the coil support and driving the coil support to rotate about its axis.

3. The wire feed device of claim 2, further comprising a wire storage portion disposed between the wire feed portion and the wire pull portion.

4. The wire feed device of claim 3, wherein the wire storage portion has:

at least two guide rollers for guiding the thread fed out from the thread feeding portion, the clamping portion clamping the thread fed out via the guide rollers;

two of the guide rollers are arranged along the horizontal direction, and the adjusting part is arranged between the guide rollers arranged along the horizontal direction, is hung by a silk thread and can move in the vertical direction;

and the detectors are arranged at least two, wherein at least one detector is arranged above and below the adjusting part respectively.

5. The wire feed device of claim 1, wherein the pulling portion comprises a three-axis robot, the gripping portion being mounted on the three-axis robot, the three-axis robot comprising a first axis robot driven using a motor, the first axis robot being driven in a direction of the outgoing filament.

6. The wire feed line device of claim 5, wherein the three-axis manipulator further comprises a second axis manipulator, a driving direction of the second axis manipulator is perpendicular to a driving direction of the first axis manipulator in a horizontal direction, the second axis manipulator is an electric sliding table, and the second axis manipulator is mounted on the first axis manipulator.

7. The wire feed device of claim 1, wherein the wire drawing portion is provided with a wire guide portion behind the clamping portion, the wire guide portion being mounted on the pulling portion.

8. The wire feed device of claim 7, wherein the wire guide comprises a pin mount, and a lower pin, an upper pin, and a side pin mounted to the pin mount, respectively, wherein a restriction space is defined between the lower pin, the upper pin, and the side pin to allow the wire to pass therethrough.

9. The wire feed device of claim 1, wherein the cut portion comprises a galvanometer laser disposed at a location where its working area can encompass the wire.

10. The wire feed line assembly of claim 9, further comprising a skinning portion disposed between the wire feed line portion and the wire draw portion, wherein the skinning portion and the cut portion share the one galvanometer laser.

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