TWM609319U - Delivery device capable of multi-stage adjustment of differential ratio - Google Patents

Abstract

The new model relates to a feeding device capable of multi-stage adjustment of the differential ratio, which includes a differential gear receiving mechanism, a differential gear transmission mechanism, a first differential adjustment mechanism, a differential feeding gear fixing seat, a second differential adjustment mechanism and Differential feeding gear; the first differential adjusting mechanism includes a shaft and an adjustment and indicating assembly connecting the shaft. The shaft is pivoted on the base and connected to the differential gear receiving mechanism; the differential gear fixed seat is set on the main shaft to drive The mechanism is located on one side of the end handle; the second differential adjustment mechanism includes an upper connecting rod and a strip groove opened on the end handle. One end of the upper connecting rod is connected to the fixed seat of the differential transmission tooth, and the other end of the upper connecting rod can be Adjust and move in the strip groove; the differential feed tooth is fixed on the differential feed tooth fixing seat. In this way, it can adjust the matching differential ratio for sewing according to the needs of various fabrics and sewing styles.

Description

Delivery device capable of multi-stage adjustment of differential ratio

This model relates to the technology of a sewing machine, in particular to a tool-feeding device that can adjust the differential ratio in multiple stages.

With the advancement of textile technology and the diversification of fabric designs, the functions and sewing patterns of sewing machines have also been developed in multiple directions; in the case of feeding teeth, the early sewing machines only configured a single feeding tooth to carry out the feeding work. , And with the evolution of sewing demand, the industry has successively developed sewing machines with double feeding teeth to sew wrinkled or flatter fabrics through the speed difference between the two feeding teeth.

The current sewing machine with adjustable differential ratio feeder still has the following problems in actual use. Because the number of stages of adjustable differential ratio is quite small, it can not meet the user's phased needs at all; In the adjustment process, cumbersome disassembly and assembly processes are required, which consumes a lot of time and labor costs for users or maintenance technicians.

In view of this, the creators of the new type devote themselves to the above-mentioned shortcomings of the existing technology, and they have devoted themselves to research and cooperate with the application of theories, and try their best to solve the above problems, which becomes the goal of the new type of creators' improvement.

One purpose of the present invention is to provide a feeder device capable of multi-stage adjustment of the differential ratio, which can adjust the matching differential ratio for sewing in response to the needs of various fabrics and sewing styles.

In order to achieve the above-mentioned objective, the present invention provides a tool-feeding device capable of multi-stage adjustment of the differential ratio for use in a sewing machine. The sewing machine has a base, a spindle drive mechanism and a main feed gear transmission mechanism. The tool-feeding device Including a differential gear transmission mechanism, a differential gear transmission mechanism, a first differential adjustment mechanism, a differential transmission gear fixing seat, a second differential adjustment mechanism and a differential transmission gear, the differential gear is transmitted One end of the mechanism is connected to the main transmission gear transmission mechanism and is driven by it; the differential gear transmission mechanism is arranged in the base and connected to the differential gear transmission mechanism, and the differential gear transmission mechanism includes a differential gear transmission mechanism. A shaft and a handle connected to the differential shaft; the first differential adjustment mechanism includes a shaft and an adjustment and indicating assembly connected to the shaft, the shaft is pivoted on the base and connected to the differential gear receiving Transmission mechanism; the differential transmission gear fixed seat is sleeved on the spindle drive mechanism and located on one side of the end handle; the second differential adjustment mechanism includes an upper connecting rod and a groove opened in the end handle One end of the upper connecting rod is connected to the differential feeding tooth fixing seat, and the other end of the upper connecting rod can be adjusted and moved in the strip groove; the differential feeding tooth system is fixed on the differential feeding tooth fixing seat.

The new model also has the following functions. The adjustment of various differential ratios is quite simple and easy, thereby greatly saving the time and labor cost of users or maintenance technicians.

The detailed description and technical content of the present invention are described as follows in conjunction with the drawings. However, the drawings are only provided for reference and explanation, and are not intended to limit the present invention.

Please refer to Figure 1 to Figure 7, the present invention provides a multi-stage adjustment of the differential ratio of the feeding device, which is applied to a sewing machine 8, the sewing machine 8 can be a three-needle cylindrical sewing machine, and its main It includes a base 81, a spindle drive mechanism 82, a main gear transmission mechanism 83, a gear height adjustment mechanism 84 and other related transmission devices.

Please refer to Figures 3 and 5, where the main shaft drive mechanism 82 mainly includes a main shaft 821 pivotally connected to the base 81 and an eccentric wheel 822 sleeved on the main shaft 821, and two sleeves are sleeved on the rear section of the eccentric wheel 822. The connecting rod assemblies 823 and 824, one of the connecting rod assembly 823 is connected to the main feeding gear transmission mechanism 83, and the other connecting rod assembly 824 is connected to the feeding gear height adjusting mechanism 84.

The main transmission gear transmission mechanism 83 mainly includes a main transmission shaft 831, a main transmission gear fixing seat 832, a main transmission gear 833, a rocker 834 and other related components. The main transmission shaft 831 is pivotally connected to the base 81 and parallel to The main shaft 821 is configured, and the main transmission shaft 831 is formed below the main shaft 821 and is connected with the aforementioned link assembly 823 and is driven. The main transmission gear fixing seat 832 is installed in the interior of the front end of the base 81, and the main shaft 821 passes through a sliding The block 825 passes through the main feeding gear fixing seat 832, one end of the main feeding shaft 831 is connected to the main feeding gear fixing seat 832 through a connecting arm assembly 835, and the main feeding tooth 833 is fixed on the main feeding gear fixing seat 832; rocker arm 834 sets It is connected to the end of the main transmission shaft 831 away from the connecting arm assembly 835.

The gear-feeding height adjustment mechanism 84 mainly includes a gear-feeding transmission shaft 841, a deflection member 842 and other related components. The gear-feeding transmission shaft 841 is pivotally connected to the base 81 and arranged parallel to the main shaft 821, and the gear-feeding transmission shaft 841 is formed One side of the main shaft 821 is connected to the aforementioned other connecting rod assembly 824 through a deflection member 842 and is driven, and the front end of the transmission gear transmission shaft 841 penetrates the main transmission gear fixing seat 832 through a sliding block 843.

Since the above-mentioned mechanisms and components are all existing technologies, detailed descriptions and explanations are omitted.

Please continue to refer to Figures 2 to 6, the present invention is capable of multi-stage adjustment of the differential ratio of the delivery device 1 mainly includes a differential gear transmission mechanism 10, a differential gear transmission mechanism 20, a first differential adjustment mechanism 30. A differential feed tooth fixing seat 40, a second differential adjustment mechanism 50 and a differential feed tooth 60.

The differential gear receiving mechanism 10 mainly includes a first connecting rod 11, a second connecting rod 12, a first connecting arm 13, a second connecting arm 14, a sliding block 15, a wear set 16 and a guide post 17. The lower end of the first link 11 is for a convex shaft 131 of the first connecting arm 13 to pass through, and the convex shaft 131 passes through the slider 15, which is set in the pocket of the rocker arm 834 (not shown in the figure). (Shown), one end of the second connecting rod 12 and the other end of the first connecting rod 11 are threaded through the through sleeve 16, and the through sleeve 16 is guided and moved through the guide post 17 fixed to the base 81, and the second connecting rod The other end of the rod 12 is connected to one end of the second connecting arm 14 through a bolt 18. After the rocker arm 834 is driven by the main feed shaft 831, the slider 15 will be guided and moved in the pocket of the rocker arm 834, and the first link 11 and the second link 12 will be driven by the slider 15 at the same time. , And drive the first connecting arm 13 and the second connecting arm 14 to follow the swing.

The differential gear transmission mechanism 20 is arranged in the base 81, and it mainly includes a differential shaft 21, a handle 22 and a swing member 23. The differential shaft 21 is pivotally connected to the base 81 and formed on the transmission shaft Below 841, the end handle 22 and the swing member 23 are respectively connected to the two ends of the differential shaft 21, and the other end of the swing member 23 penetrates the other end of the first connecting arm 13 through a protrusion 231.

The first differential adjustment mechanism 30 mainly includes a shaft 31 and an adjustment and indicator assembly 32. The shaft 31 is pivotally connected to the base 81, and one end of the shaft 31 penetrates the other end of the second connecting arm 14 for adjustment and The indicator assembly 32 is fixed on the rear surface of the machine base 81. The adjustment and indicator assembly 32 mainly includes a dial 321, an indicator member 322, a knob assembly 323, and a locking button 324. The dial 321 is locked on the machine by bolts. The seat 81 is provided with an arc groove 3211 on the dial 321 and a plurality of marking lines 3212 on one side of the arc groove 3211; the indicating member 322 is sleeved on the end of the shaft 31 away from the second connecting arm 14, The other end of the indicating member 322 extends in the direction of the arc-shaped slot 3211. The locking button 324 passes through the arc-shaped slot 3211 and then is locked in place with the indicating member 322. The knob assembly 323 is erected on the dial 321 and connected to the indicating member 322. , Used to adjust the up and down yaw of the indicating member 322.

The differential feed gear holder 40 is installed in the inside of the front end of the machine base 81 and is located on one side of the end handle 22. The differential feed gear holder 40 is parallel to the main feed gear holder 832, and one end of the differential feed gear holder 40 is sleeved. The sliding block 825 is connected with the main shaft 821, and the other end of the differential feeding gear fixing seat 40 is sleeved with a sliding block 843 to connect with the gear feeding transmission shaft 841.

The second differential adjustment mechanism 50 includes an upper connecting rod 51, a groove 52 opened on the end handle 22, and a screw 53. Please refer to FIG. 7 together. The groove 52 in this embodiment is a circular arc. A strip-shaped slot, an upper scale line 521, a middle scale line 522, and a lower scale line 523 are provided on one side of the strip groove 52. One end of the upper connecting rod 51 is connected to the differential transmission tooth fixing seat 40 through a screw, and the upper connecting rod The other end of the rod 51 can be adjusted, moved and locked in the strip groove 52 through the screw 53.

The differential feeding tooth 60 is fixed on the differential feeding tooth fixing seat 40.

With the combination of the above-mentioned mechanisms and components, the screw 53 can be loosened and moved to the position of the lower scale line 523 to be locked during use. At this time, the adjustable differential ratio range of the indicator member 322 of the adjustment and indicator assembly 32 is adjusted. Between 1:0.6~1:1.1, it is worth mentioning that the number in the front (or called the numerator) is the moving speed of the main feeding tooth is 1, and the number after (or called the denominator) is the moving speed of the differential feeding tooth is 0.6 ~1.1. Secondly, the screw 53 is loosened and moved to the position of the middle scale line 522 and then locked. At this time, the adjustable differential ratio range of the indicator member 322 of the adjustment and indicator assembly 32 is between 1:0.75 and 1:1.25. In addition, the screw 53 is loosened and moved to the position of the upper scale line 521 and then locked. At this time, the adjustable differential ratio range of the indicator member 322 of the adjustment and indicator assembly 32 is between 1:0.9 and 1:1.4; in addition, when When the seam distance is less than 2.5mm, the maximum differential ratio can be adjusted to 1:1.8. Furthermore, due to the design of the strip groove 52, there can be more positioning points within the aforementioned scale lines 521, 522, and 523, so as to achieve more sets of differential ratios; for example, on the lower scale line 523 Between the middle scale line 522 and the middle scale line 522, the differential ratio range of the indicator member 322 of the indicator assembly 32 can be adjusted between 1:0.675 and 1:1.175.

In summary, the new type of delivery device with multi-stage adjustment of the differential ratio can indeed achieve the intended purpose of use, and solve the lack of conventional knowledge, and because of its novelty and progress, it fully meets the requirements of a new patent application. The application is filed in accordance with the Patent Law, please check carefully and grant the patent for this case to protect the rights of the creator of the new type.

1: Sending device capable of multi-stage adjustment of differential ratio

10: Differential gear transmission mechanism

11: The first link

12: The second link

13: The first connecting arm

131: Convex shaft

14: The second connecting arm

15: Slider

16: wear kit

17: guide post

18: Bolt

20: Differential gear transmission mechanism

21: Differential shaft

22: end handle

23: swing parts

231: Convex Column

30: The first differential adjustment mechanism

31: Axle

32: Adjustment and indicator components

321: Dial

3211: curved slot

3212: Marking

322: indicator component

323: knob assembly

324: Lock Button

40: Differential feed gear holder

50: The second differential adjustment mechanism

51: upper link

52: Strip groove

521: Upper tick mark

522: Middle scale line

523: Lower tick mark

53: Screw

60: Bad feed

8: Sewing machine

81: Base

82: Spindle drive mechanism

821: Spindle

822: eccentric

823, 824: connecting rod assembly

825: Slider

83: Main feed gear transmission mechanism

831: main shaft

832: Main feed gear holder

833: main gear

834: Rocker

835: connecting arm assembly

84: Feeding tooth height adjustment mechanism

841: gear drive shaft

842: Partial ornament

843: Slider

Figure 1 is a combined perspective view of the machine base of the present invention applied to the sewing machine.

Figure 2 is a three-dimensional exploded view of the present invention.

Figure 3 is the appearance view of the combination of the new model with the main shaft drive mechanism, the main feed gear transmission mechanism and the feed gear height adjustment mechanism.

Figure 4 is an enlarged view of a partial area of Figure 3.

Figure 5 is another view of Figure 3.

Figure 6 is a front view of Figure 3.

Figure 7 is a perspective view of the differential shaft of the present invention.

1: Sending device capable of multi-stage adjustment of differential ratio

10: Differential gear transmission mechanism

11: The first link

12: The second link

13: The first connecting arm

131: Convex shaft

14: The second connecting arm

15: Slider

16: wear kit

17: guide post

18: Bolt

20: Differential gear transmission mechanism

21: Differential shaft

22: end handle

23: swing parts

231: Convex Column

30: The first differential adjustment mechanism

31: Axle

32: Adjustment and indicator components

321: Dial

3211: curved slot

3212: Marking

322: indicator component

323: knob assembly

324: Lock Button

40: Differential feed gear holder

50: The second differential adjustment mechanism

51: upper link

52: Strip groove

53: Screw

60: Bad feed

831: main shaft

832: Main feed gear holder

833: main gear

Claims (9)

A tool-feeding device capable of multi-stage adjustment of differential ratios is used in a sewing machine. The sewing machine has a machine base, a spindle drive mechanism and a main gear transmission mechanism. The tool-feeding device includes: A differential gear transmission mechanism, one end of which is connected to and driven by the main transmission gear transmission mechanism; A differential gear transmission mechanism, arranged in the machine base and connected to the differential gear transmission mechanism, the differential gear transmission mechanism including a differential shaft and a handle connected to the differential shaft; A first differential adjustment mechanism, including a shaft and an adjustment and indicating assembly connected to the shaft, the shaft is pivoted on the base and connected to the differential gear receiving mechanism; A differential feed gear fixed seat sleeved on the spindle drive mechanism and located on one side of the end handle; A second differential adjustment mechanism includes an upper connecting rod and a groove opened on the end handle. One end of the upper connecting rod is connected to the differential transmission tooth fixing seat, and the other end of the upper connecting rod can be connected to the Adjustment and movement in the groove; and A differential feeding tooth is fixed on the differential feeding tooth fixing seat. The delivery device capable of multi-stage adjustment of the differential ratio according to claim 1, wherein the second differential adjustment mechanism further includes a screw, and the other end of the upper link moves in the strip groove through the screw And locked. According to claim 1, the delivery device capable of adjusting the differential ratio in multiple stages, wherein the strip groove is an arc-shaped strip groove. According to claim 1, the delivery device capable of adjusting the differential ratio in multiple stages, wherein one side of the strip groove is provided with an upper scale line, a middle scale line and a lower scale line. The delivery device capable of multi-stage adjustment of the differential ratio as described in claim 1, wherein the adjustment and indicating assembly is fixed on the rear surface of the base. The delivery device capable of multi-stage adjustment of the differential ratio according to claim 5, wherein the adjustment and indicating assembly includes a dial, an indicating member, a knob assembly and a locking button, and the dial is locked to the In the base, the indicating member is sleeved on the shaft, the knob assembly is erected on the dial and connected to the indicating member, the locking button passes through the dial and then locks and fixes the position with the indicating member. According to claim 6, the delivery device capable of multi-stage adjustment of the differential ratio, wherein the dial is provided with an arc-shaped groove and a plurality of marking lines are arranged at intervals on one side of the arc-shaped groove. The delivery device capable of multi-stage adjustment of the differential ratio according to claim 1, wherein the differential gear transmission mechanism further includes a swing member connected to the end of the differential shaft away from the end handle, and the differential gear The tooth transmission mechanism includes a first connecting arm, and the swinging member penetrates the first connecting arm through a convex column. According to claim 8, the delivery device capable of adjusting the differential ratio in multiple stages, wherein the differential gear transmission mechanism further includes a second connecting arm, and one end of the shaft passes through the second connecting arm.

Images