A laser positioning lamp and sewing machine thereof

Abstract

The application relates to a laser positioning lamp which comprises a mounting sleeve, a spherical joint, a positioning lamp, a supporting sleeve, a locking cover and an adapter plate, the spherical joint is movably connected with the mounting sleeve, the spherical joint is provided with an adjusting pipe which extends outward through the mounting sleeve, the adjusting pipe is sleeved with the positioning lamp, the mounting sleeve is screw-connected with the locking cover which is used for adjusting the tightness of the spherical joint, the supporting sleeve is arranged between the locking cover and the spherical joint, the mounting sleeve is detachably connected with the adapter plate, and the adapter plate is arranged between the mounting sleeve and the locking cover; the purpose of the application is to realize the universal adjustment of the spherical joint relative to the mounting sleeve by moving the adjusting pipe, so as to change the irradiation direction of the positioning lamp, to increase the friction between the spherical joint and the mounting sleeve by rotating the locking cover in the mode of 'outer pressure and inner support', so as to lock the positioning lamp, improve the stability of the structure, facilitate the sewing machine operator to flexibly adjust the irradiation direction of the positioning lamp, and thus improve the work efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of textile equipment, and in particular to a laser positioning light and its sewing machine. Background Technology

[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the fabric, allowing one or more layers of fabric to interweave or sew together. To facilitate the positioning of the fabric, a laser lamp is usually equipped on one side of the sewing machine needle. The laser lamp illuminates the worktable and forms a dotted, straight, or cross-shaped beam of light. The positioning of the beam ensures that the fabric is fed into the sewing machine in the same position, resulting in uniform and neat stitches.

[0003] However, in actual operation, the shapes of sewing fabrics are diverse and complex, and the required positioning points will vary depending on the material and structure of the sewing fabric. Traditional sewing machines usually install laser lights by means of sheet metal parts with threaded connections, which makes it difficult for sewing operators to flexibly adjust the direction of the laser light, causing certain inconveniences in the work and affecting work efficiency. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the technical solution adopted by the present invention is: a laser positioning light, including a mounting sleeve, a spherical connector, a positioning light, a support sleeve, and a locking cover. The mounting sleeve is provided with a first arc surface for accommodating the spherical connector. The spherical connector is movably connected to the mounting sleeve through the first arc surface. The spherical connector is provided with an adjusting tube, which extends outward through the mounting sleeve. The positioning light is sleeved inside the adjusting tube. The mounting sleeve is threadedly connected to a locking cover for adjusting the tightness of the spherical connector, and a support sleeve is provided between the locking cover and the spherical connector.

[0005] The above technical solution includes a retaining ring inside the adjusting tube. The positioning light is snapped into the adjusting tube and abuts against the retaining ring. Glue is poured into the tail of the adjusting tube to fix the positioning light. By moving the adjusting tube, the spherical joint can be adjusted omnidirectionally relative to the mounting sleeve, thereby changing the direction of the positioning light's illumination. Rotating the locking cap provides a force to the support sleeve towards the spherical joint, causing the end of the support sleeve near the spherical joint to expand outward due to the guidance of the spherical surface. This forces the support sleeve to squeeze and fill the gap between the spherical joint and the mounting sleeve, increasing the friction between the spherical joint and the mounting sleeve through "external pressure and internal support." This locks the positioning light, improves structural stability, and allows the sewing worker to flexibly adjust the illumination direction of the positioning light, thereby improving work efficiency.

[0006] A further configuration of the present invention is that the mounting sleeve is provided with a sliding groove, the support sleeve is slidably connected to the sliding groove, and the support sleeve is a hollow rotating body, the spherical joint is provided with a spherical surface adapted to the first arc surface, and the bottom of the support sleeve is provided with a second arc surface adapted to the spherical surface.

[0007] Using the above technical solution, the surface of the ball joint is tangent to the first arc surface and the second arc surface respectively, so that it moves naturally between the mounting sleeve and the locking sleeve without jamming.

[0008] A further feature of the present invention is that the support sleeve has a downward-facing cable outlet groove facing the spherical connector, the mounting sleeve has a cable outlet hole corresponding to the cable outlet groove, and the positioning light has a connecting wire that passes through the cable outlet groove and the cable outlet hole in sequence to connect to an external power source.

[0009] Using the above technical solution, the hollow part of the support sleeve is used to accommodate the connecting wire. The connecting wire passes through the wire outlet groove and the wire outlet hole in sequence to provide power to the positioning light. The wire outlet groove can relieve the stress generated by the support sleeve when it is pressed tightly against the ball joint, and prevent the support sleeve from cracking due to the stress generated by the compression.

[0010] A further feature of the present invention is that the support sleeve is provided with circumferentially distributed grooves with downward openings.

[0011] The above technical solution alleviates the stress generated when the support sleeve is pressed against the spherical joint by the notch and the outlet groove. It is suitable for support sleeves with thicker walls and avoids cracking of the support sleeve due to the stress generated by compression.

[0012] A further provision of the present invention is that the connecting wire is wound around the spherical surface more than half a turn and passes through the wire outlet groove and wire outlet hole in sequence to connect to the external power supply.

[0013] By adopting the above technical solution, the end of the connecting wire near the positioning light is wound into a spiral shape, which increases the movable margin of the connecting wire when adjusting the direction of the positioning light, and avoids the connecting wire from cracking due to excessive tension during adjustment, thereby improving the service life of the positioning light.

[0014] A further configuration of the present invention is that the mounting sleeve is provided with a first threaded post, the locking cover is threadedly connected to the first threaded post, the upper end of the support sleeve extends beyond the first threaded post, and the top of the support sleeve abuts against the locking cover.

[0015] Furthermore, the mounting sleeve has mounting portions on both sides of the first threaded post, the mounting portions have connection holes for connecting external devices, the side of the locking cover has circumferentially distributed anti-slip grooves, and there is a gap between the locking cover and the mounting portions.

[0016] With the above technical solution, the distance between the mounting part and the positioning light is shorter, which is suitable for sewing machines with low side mounting holes, and avoids the positioning light being too close to the worktable.

[0017] A further configuration of the present invention is that the locking cover is provided with a second threaded post and a locking cap, the mounting sleeve is provided with an internal thread adapted to the second threaded post, the locking cover is connected to the mounting sleeve through the internal thread, and the top of the support sleeve abuts against the second threaded post.

[0018] Furthermore, the mounting sleeve has mounting portions on both sides, the mounting portions have connection holes for connecting external devices, the lock cap has anti-slip grooves distributed in a circular pattern on its side, and there is a gap between the lock cap and the mounting portions.

[0019] The above technical solution allows for a longer distance between the mounting part and the positioning light, making it suitable for equipment with higher side mounting holes. This ensures clear illumination of the positioning light and facilitates material positioning.

[0020] In addition, to achieve the above objectives, the present invention also provides a sewing machine, including a sewing machine and a positioning light mounted on the sewing machine via an adapter plate, wherein the positioning light is a laser positioning light of any of the above technical solutions.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The ball joint can be adjusted in all directions relative to the mounting sleeve by moving the adjustment tube, thereby changing the direction of the positioning light. The friction between the ball joint and the mounting sleeve is increased by rotating the locking cover in the form of "external pressure and internal support", thereby locking the positioning light, improving the stability of the structure, and allowing the sewing worker to flexibly adjust the direction of the positioning light, thus improving work efficiency.

[0023] The embodiments of the present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0024] Figure 1 This is an exploded view of the structure of the first embodiment of the present invention;

[0025] Figure 2 This is a cross-sectional view of the first embodiment of the present invention;

[0026] Figure 3 This is a cross-sectional view of the mounting sleeve of the present invention;

[0027] Figure 4 This is a perspective view of the support sleeve in the first embodiment of the present invention;

[0028] Figure 5 For the present invention Figure 2 A sectional view of the view along direction A;

[0029] Figure 6 This is a top view of the first embodiment of the present invention;

[0030] Figure 7This is a schematic diagram of the structure of the first embodiment of the present invention equipped with a shock absorption mechanism;

[0031] Figure 8 This is a cross-sectional view of the second embodiment of the present invention;

[0032] Figure 9 This is a perspective view of the second embodiment of the present invention;

[0033] Figure 10 This is a perspective view of the support sleeve in the second embodiment of the present invention;

[0034] Figure 11 This is a schematic diagram of the structure of the second embodiment of the present invention equipped with a shock absorption mechanism;

[0035] The components are: 1-mounting sleeve, 2-spherical connector, 3-positioning light, 4-support sleeve, 5-locking cover, 6-adapter plate, 7-adjusting tube, 8-connecting wire, 9-screw, 11-first arc surface, 12-slide groove, 13-spherical surface, 14-second arc surface, 15-outlet groove, 16-outlet hole, 17-first threaded post, 18-mounting part, 19-connecting hole, 20-anti-slip groove, 21-second threaded post, 22-lock cap, 23-cut groove, 24-side mounting hole, 25-side support block, 26-upper support block, 27-compression spring, 28-side plate, 29-horizontal plate, 30-upper mounting hole, 31-blind hole, 32-tension spring, 33-mounting ring; Detailed Implementation

[0036] like Figure 1-3 As shown, the present invention provides a first embodiment of a laser positioning light, including a mounting sleeve 1, a ball joint 2, a positioning light 3, a support sleeve 4, and a locking cover 5. The mounting sleeve 1 has a first arc surface 11 for accommodating the ball joint 2. The ball joint 2 is movably connected to the mounting sleeve 1 through the first arc surface 11. The ball joint 2 has an adjusting tube 7, which extends outward through the mounting sleeve 1. The positioning light 3 is sleeved inside the adjusting tube 7. The mounting sleeve 1 is threadedly connected to the locking cover 5 for adjusting the tightness of the ball joint 2. A support sleeve 4 is provided between the locking cover 5 and the ball joint 2. The invention also includes an adapter plate 6. The mounting sleeve 1 is detachably connected to... An adapter plate 6 is provided, and the adapter plate 6 is located between the mounting sleeve 1 and the locking cover 5. The present invention achieves universal adjustment of the spherical joint 2 relative to the mounting sleeve 1 through the first arc surface 11, and changes the direction of illumination of the positioning lamp 3 by directly moving the adjusting tube 7. By rotating the locking cover 5, a force is provided to the support sleeve 4 towards the spherical joint 2, so that the end of the support sleeve 4 near the spherical joint 2 is guided outward by the spherical surface 13, so that it squeezes and fills the gap between the spherical joint 2 and the mounting sleeve 1, increasing the friction between the spherical joint 2 and the mounting sleeve 1 in the manner of "external pressure and internal support", thereby locking the positioning lamp 3 and improving the stability of the structure.

[0037] Combination Figure 4 As shown, in this embodiment, the mounting sleeve 1 is provided with a groove 12, the support sleeve 4 is slidably connected to the groove 12, and the support sleeve 4 is a hollow rotating body. The spherical connector 2 is provided with a spherical surface 13 that is adapted to the first arc surface 11, and the bottom of the support sleeve 4 is provided with a second arc surface 14 that is adapted to the spherical surface 13. The surface of the spherical connector 2 is tangent to the first arc surface 11 and the second arc surface 14 respectively, so that it moves naturally between the mounting sleeve 1 and the locking sleeve without jamming.

[0038] In this embodiment, the support sleeve 4 is provided with a downward-facing cable outlet groove 15 facing the ball joint 2, and the mounting sleeve 1 is provided with a cable outlet hole 16 corresponding to the cable outlet groove 15. The positioning light 3 is provided with a connecting wire 8, and the connecting wire 8 passes through the cable outlet groove 15 and the cable outlet hole 16 in sequence to connect to the external power supply. The hollow part of the support sleeve 4 is used to accommodate the connecting wire 8. The connecting wire 8 passes through the cable outlet groove 15 and the cable outlet hole 16 in sequence to provide power to the positioning light 3. The cable outlet groove 15 can relieve the stress generated by the support sleeve 4 when pressing the ball joint 2, and prevent the support sleeve 4 from cracking due to the stress generated by compression.

[0039] like Figure 5 As shown, in this embodiment, the connecting wire 8 is wound around the spherical surface 13 more than half a turn and passes through the wire outlet groove 15 and the wire outlet hole 16 in sequence to connect to the external power supply. The end of the connecting wire 8 near the positioning light 3 is wound into a spiral shape to increase the movable margin of the connecting wire 8 when adjusting the direction of the positioning light 3, and to prevent the connecting wire 8 from being too tight and cracking during adjustment, thereby improving the service life of the positioning light 3.

[0040] Combination Figure 2 , 6 As shown, in this embodiment, the mounting sleeve 1 is provided with a first threaded post 17, and the locking cover 5 is threadedly connected to the first threaded post 17. The upper end of the support sleeve 4 extends beyond the first threaded post 17, and the top of the support sleeve 4 abuts against the locking cover 5. The mounting sleeve 1 is provided with mounting portions 18 on both sides of the first threaded post 17. The mounting portions 18 are provided with connection holes 19 for external devices. The side of the locking cover 5 is provided with circumferentially distributed anti-slip grooves 20. The distance between the locking cover 5 and the mounting portion 18 is greater than the thickness of the adapter plate 6. When the locking cover 5 is connected to the mounting portion 18, it prevents the locking cover 5 from being... The adapter plate 6 obstructs and loses its locking function. The distance between the mounting part 18 and the positioning light 3 is relatively short, which is suitable for sewing machines with low side mounting holes, and avoids the positioning light 3 being too close to the worktable. The anti-slip groove 20 is a cylindrical groove. The locking cover 5 is connected to the mounting sleeve 1 by screws 9. The outer diameter of the nut of the screw 9 is not greater than the diameter of the anti-slip groove 20, so that the locking cover 5 provides sufficient installation space when installing the screw 9 through the anti-slip groove 20, reducing the distance between the connecting holes 19 on both sides of the mounting part 18, thereby minimizing the overall width of the mounting sleeve 1 and reducing the space occupied.

[0041] Combination Figure 6, 7 As shown, this embodiment also includes a shock-absorbing mechanism, which includes a side support block 25, an upper support block 26, and a compression spring 27. The adapter plate 6 includes a side plate 28 and a horizontal plate 29 that are perpendicularly distributed to each other. The horizontal plate 29 is provided with an upper mounting hole 30. The side support block 25 is connected to the side plate 28 through the side mounting hole 24, and the upper support block 26 is connected to the horizontal plate 29 through the upper mounting hole 30. Both the side support block 25 and the upper support block 26 are provided with blind holes 31 for connecting the compression spring 27. The compression spring 27 is obliquely distributed between the side plate 28 and the horizontal plate 29 through the blind holes 31. When the side plate 28 is installed on the sewing machine, the side plate 28, the horizontal plate 29, and the compression spring 27 are arranged in a triangle. The compression spring 27 provides an oblique upward support force to the horizontal plate 29 to maintain the strength of the structure and has an anti-vibration effect. The vibration generated when the sewing machine is working is partially absorbed by the compression spring 27, reducing the impact of vibration on the positioning light 3.

[0042] like Figure 8 , 9 As shown, the present invention provides a second embodiment of a laser positioning light, which differs from the first embodiment in that: the locking cover 5 is provided with a second threaded post 21 and a locking cap 22, the mounting sleeve 1 is provided with an internal thread adapted to the second threaded post 21, the locking cover 5 is connected to the mounting sleeve 1 through the internal thread, the top of the support sleeve 4 abuts against the second threaded post 21, the mounting sleeve 1 is provided with mounting parts 18 on both sides, the mounting parts 18 are provided with connection holes 19 for external devices, the side of the locking cap 22 is provided with anti-slip grooves 20 distributed in a circular pattern, and the distance between the locking cap 22 and the mounting parts 18 is greater than the thickness of the adapter plate 6.

[0043] Combination Figure 10 As shown, in this embodiment, the support sleeve 4 is provided with circumferentially distributed and downward-facing slit grooves 23. The slit grooves 23 and the wire outlet grooves 15 relieve the stress generated when the support sleeve 4 is pressed tightly against the ball joint 2. This is suitable for support sleeves with thicker walls and prevents the support sleeve 4 from cracking due to the stress generated by compression.

[0044] Combination Figure 9 , 11As shown, this embodiment also includes a shock-absorbing mechanism, which includes a side support block 25, an upper support block 26, and a tension spring 32. The adapter plate 6 includes a side plate 28 and a horizontal plate 29 that are perpendicularly distributed to each other. The horizontal plate 29 is provided with an upper mounting hole 30. The side support block 25 is connected to the side plate 28 through the side mounting hole 24, and the upper support block 26 is connected to the horizontal plate 29 through the upper mounting hole 30. Both the side support block 25 and the upper support block 26 are provided with mounting rings 33 for connecting the tension spring 32. The tension spring 32 is obliquely distributed between the side plate 28 and the horizontal plate 29 through the mounting rings 33. When the side plate 28 is installed on the sewing machine, the side plate 28, the horizontal plate 29, and the tension spring 32 are arranged in a triangular shape. The tension spring 32 provides tension to the horizontal plate 29 to maintain the strength of the structure and also has an anti-vibration effect. The vibration generated when the sewing machine is working is absorbed by the tension spring 32, which reduces the impact of vibration on the positioning light 3.

[0045] The present invention also provides a sewing machine, including a sewing machine, a positioning light 3 and an adapter plate 6. The adapter plate 6 is provided with a side mounting hole 24. The positioning light 3 is threadedly connected to the sewing machine through the side mounting hole 24, and the positioning light 3 is the laser positioning light described in the above embodiments. It is worth mentioning that other components of the sewing machine in the embodiments of the present invention are known to those skilled in the art and belong to the prior art, so they will not be described in detail here.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A laser positioning light, characterized in that, The device includes an installation sleeve, a ball joint, a positioning light, a support sleeve, and a locking cap. The installation sleeve has a first arc surface for accommodating the ball joint. The ball joint is movably connected to the installation sleeve through the first arc surface. The ball joint has an adjustment tube that extends outward through the installation sleeve. A positioning light is fitted inside the adjustment tube. The installation sleeve is threadedly connected to a locking cap for adjusting the tightness of the ball joint. A support sleeve is provided between the locking cap and the ball joint. The installation sleeve has a sliding groove. The support sleeve is slidably connected to the sliding groove and is a hollow rotating body. The ball joint has a spherical surface that matches the first arc surface. The bottom of the support sleeve has a second arc surface that matches the spherical surface.

2. The laser positioning light according to claim 1, characterized in that: The support sleeve has a downward-facing cable outlet groove facing the spherical connector. The mounting sleeve has a cable outlet hole corresponding to the cable outlet groove. The positioning light has a connecting wire, which passes through the cable outlet groove and the cable outlet hole in sequence to connect to an external power source.

3. A laser positioning light according to claim 2, characterized in that: The support sleeve is provided with circumferentially distributed grooves with downward openings.

4. A laser positioning light according to claim 2 or 3, characterized in that: The connecting wire is wound more than half a turn around the spherical surface and passes through the wire outlet groove and wire outlet hole in sequence to connect to the external power supply.

5. A laser positioning light according to claim 1, characterized in that: The mounting sleeve is provided with a first threaded post, the locking cover is threaded to the first threaded post, the upper end of the support sleeve extends beyond the first threaded post, and the top of the support sleeve abuts against the locking cover.

6. A laser positioning light according to claim 5, characterized in that: The mounting sleeve has mounting portions on both sides of the first threaded post. The mounting portions have connection holes for connecting external devices. The side of the locking cover has circumferentially distributed anti-slip grooves. There is a gap between the locking cover and the mounting portions.

7. A laser positioning light according to claim 1, characterized in that: The locking cover is provided with a second threaded post and a locking cap, and the mounting sleeve is provided with an internal thread that matches the second threaded post. The locking cover is connected to the mounting sleeve through the internal thread, and the top of the support sleeve abuts against the second threaded post.

8. A laser positioning light according to claim 7, characterized in that: The mounting sleeve has mounting portions on both sides, each mounting portion having a connection hole for connecting external devices. The side of the lock cap has circumferentially distributed anti-slip grooves, and there is a gap between the lock cap and the mounting portion.

9. A sewing machine, characterized in that: Including a laser positioning light as described in any one of claims 1-8, mounted on a sewing machine.

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