A weft density adjusting device

Abstract

The utility model discloses a weft density adjusting device, including the machine case, the worm wheel and the worm are rotationally arranged in the machine case, the worm wheel is engaged with the worm, and the worm coaxially connects driven gear no.

Description

Technical Field

[0001] This utility model relates to the field of weaving equipment technology, and more specifically, to a weft density adjustment device. Background Technology

[0002] The reduction ratios of the warp feed box and take-up box used in ordinary air-jet looms are fixed. The speed of the servo motors used in the warp feed box and take-up box is limited, which restricts the weft density of the loom to a certain range. With the diversification of the types of fabrics, the fixed weft density cannot meet the demand. Expanding the range of weft density weaving is of great significance. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a weft density adjustment device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a weft density adjustment device, including a housing, in which a worm wheel and a worm are rotatably arranged, the worm wheel meshing with the worm, and the worm coaxially connected to a driven gear one and a driven gear two. A servo motor is installed on the housing, and the servo motor drives the driven gear one and the driven gear two. It also includes an adjustment gear set, which can be adjusted to make the driven gear one drive the driven gear one or make the driven gear two drive the driven gear two.

[0006] Furthermore, the diameter of driven gear one is smaller than that of driven gear two.

[0007] Furthermore, the diameter of drive gear one is larger than that of drive gear two.

[0008] Furthermore, the adjusting gear set includes a splined shaft and a splined sleeve. The splined shaft is rotatably mounted inside the housing, and the splined sleeve is fitted onto the splined shaft. The splined sleeve is fitted with transmission gear one, transmission gear two, transmission gear three, and transmission gear four. Drive gear one meshes with transmission gear one, drive gear two meshes with transmission gear two, transmission gear three meshes with driven gear one, and transmission gear four meshes with driven gear two. The set also includes an adjusting mechanism that can drive the splined sleeve to move axially, allowing the splined sleeve to be keyed to transmission gear one and transmission gear three or keyed to transmission gear two and transmission gear four.

[0009] Furthermore, the adjusting mechanism includes a screw, a through hole on the spline sleeve, an oblong hole on the spline shaft, the lower end of the screw passing through the through hole and the oblong hole and threadedly connected to a ball head pin, and a positioning groove one and a positioning groove two for limiting the ball head pin are provided inside the spline shaft, and the oblong hole is connected to the positioning groove one and the positioning groove two.

[0010] Furthermore, a pull rod is inserted into the end of the spline shaft, and a stepped hole is opened on the pull rod. A ball head pin is set in the stepped hole, and a spring is sleeved on the screw. One end of the spring abuts against the ball head pin, and the other end abuts against the step of the stepped hole.

[0011] Furthermore, adjustment holes are provided on the chassis.

[0012] Furthermore, the spline sleeve includes spline one, spline two and spline three, the outer wall of the spline shaft is provided with a connecting key, and the inner wall of the spline sleeve is provided with a connecting groove that mates with the connecting key.

[0013] The beneficial effects of this utility model are: the reduction ratio of the gear transmission can be changed, and it can be applied to the warp feed box and the winding box, which can expand the range of weft density manufacturing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a tooling state of the weft density adjustment device in this embodiment;

[0015] Figure 2 This is a schematic diagram of another tooling state of the weft density adjustment device in this embodiment;

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0018] Figure 5 This is a schematic diagram of one structure of the spline sleeve in this embodiment;

[0019] Figure 6 This is a schematic diagram of one structure of the spline shaft in this embodiment.

[0020] Reference numerals: 1. Chassis; 2. Servo motor; 3. Drive gear one; 4. Drive gear two; 5. Splined shaft; 6. Splined sleeve; 7. Transmission gear one; 8. Transmission gear two; 9. Transmission gear three; 10. Transmission gear four; 11. Worm; 12. Worm wheel; 13. Driven gear one; 14. Driven gear two; 15. Spline one; 16. Spline two; 17. Spline three; 18. Through hole; 19. Connecting groove; 20. Connecting key; 21. Oval hole; 22. Positioning groove one; 23. Positioning groove two; 24. Connecting hole; 25. Pull rod; 26. Connecting ball; 27. Adjusting hole; 28. Stepped hole; 29. ​​Screw; 30. Ball head pin; 31. Spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-4 As shown, a weft density adjustment device includes a housing 1. A worm gear 12 and a worm 11 are rotatably mounted inside the housing 1. The worm gear 12 meshes with the worm 11. A driven gear 13 and a driven gear 14 are coaxially connected to the worm 11. The diameter of driven gear 13 is smaller than that of driven gear 14. A servo motor 2 is mounted on the housing 1. The servo motor 2 drives a drive gear 3 and a drive gear 4, the diameter of which is larger than that of the drive gear 4. The device also includes an adjusting gear set. By adjusting the gear set, the drive gear 3 drives the driven gear 13, or the drive gear 4 drives the driven gear 14, thereby obtaining different reduction ratios.

[0023] Furthermore, the adjusting gear set includes a splined shaft 5 and a splined sleeve 6. The splined shaft 5 is rotatably mounted inside the housing 1 and is parallel to the worm gear 11. The splined sleeve 6 is fitted onto the splined shaft 5, and the splined sleeve 6 houses a first transmission gear 7, a second transmission gear 8, a third transmission gear 9, and a fourth transmission gear 10. The first transmission gear 3 meshes with the first transmission gear 7, and the second transmission gear 4 meshes with the second transmission gear 8. Therefore, the diameter of the first transmission gear 7 is smaller than the diameter of the second transmission gear 8. The third transmission gear 9 meshes with the driven gear 13, and the fourth transmission gear 10 meshes with the driven gear 24. Therefore, the diameter of the third transmission gear 9 is larger than the diameter of the fourth transmission gear 10.

[0024] The spline sleeve 6 includes spline one 15, spline two 16 and spline three 17. There is a certain distance between spline one 15 and spline two 16, and between spline two 16 and spline three 17. A connecting key 20 is provided on the outer wall of the spline shaft 5, and a connecting groove 19 is provided on the inner wall of the spline sleeve 6 to cooperate with the connecting key 20. When the spline sleeve 6 is installed on the spline shaft 5, the connecting key 20 is inserted into the connecting groove 19.

[0025] This device also includes an adjustment mechanism that can drive the spline sleeve 6 to move axially, allowing the spline sleeve 6 to be keyed to drive gear 7 and drive gear 3 9 or to drive gear 2 8 and drive gear 4 10. When the spline sleeve 6 is keyed to drive gear 7 and drive gear 3 9 via spline 1 15 and spline 2 16, drive gear 2 8 and drive gear 4 10 are in an idle state. Drive gear 1 3 drives the meshing drive gear 7 to rotate, and drive gear 7 drives drive gear 3 9 to rotate via the spline sleeve 6. Drive gear 3 9 then drives the meshing driven gear 13 to rotate. When the spline sleeve 6 is keyed to drive gear 2 8 and drive gear 4 10 via spline 2 16 and spline 3 17, drive gear 7 and drive gear 3 9 are in an idle state. Drive gear 2 4 drives drive gear 2 8 to rotate, and drive gear 2 8 drives drive gear 4 10 to rotate via the spline sleeve 6. Drive gear 4 10 then drives the meshing driven gear 2 14 to rotate. The two drive methods allow for two different reduction ratios.

[0026] Furthermore, the adjusting mechanism includes a screw 29, a through hole 18 on the spline sleeve 6, and an oblong hole 21 on the spline shaft 5. The lower end of the screw 29 passes through the through hole 18 and the oblong hole 21, extends into the spline shaft 5, and is threadedly connected to a ball head pin 30. The spline shaft 5 is provided with a first positioning groove 22 and a second positioning groove 23 for limiting the ball head pin 30. The oblong hole 21 communicates with the first positioning groove 22 and the second positioning groove 23. After the adjusting mechanism adjusts the position of the spline sleeve 6, the ball head pin 30 can be engaged in the first positioning groove 22 or the second positioning groove 23, thereby fixing the position of the spline sleeve 6 relatively.

[0027] The structure of the oblong hole 21 allows the lower end of the screw 29 to move within the spline shaft 5.

[0028] A connecting hole 24 is provided between positioning groove 1 22 and positioning groove 23. The connecting hole 24 can be used to guide the movement of ball head pin 30.

[0029] A pull rod 25 is inserted into the end of the splined shaft 5. A stepped hole 28 is formed in the pull rod 25. A screw 29 is inserted into the smaller diameter end of the stepped hole 28. A ball head pin 30 is positioned in the larger diameter end of the stepped hole 28. A spring 31 is fitted onto the screw 29. One end of the spring 31 abuts against the ball head pin 30, and the other end abuts against the step of the stepped hole 28. Under the action of the spring 31, the ball head pin 30 is pushed downwards, resulting in a greater force for it to engage in the positioning groove 22 and positioning groove 23, thus improving the limiting effect.

[0030] When the position of the spline sleeve 6 needs to be adjusted, pull the screw 29 upwards, causing the ball head pin 30 to rise against the spring force of the spring 31 and disengage from the positioning groove 22 or positioning groove 23. Then, by moving the pull rod 25, the screw 29 can be moved, which in turn moves the spline sleeve 6 to complete the position adjustment. After moving into position, the ball head pin 30 can re-engage into the positioning groove 22 or positioning groove 23 under the action of the spring 31. An adjustment hole 27 is provided on the chassis 1, connecting the inside and outside of the chassis 1, facilitating the adjustment of the screw 29.

[0031] One end of the pull rod 25 extends out of the chassis 1 and is threadedly connected to a connecting ball 26. The connecting ball 26 is located outside the chassis 1, and the pull rod 25 can be easily moved through the connecting ball 26, thereby facilitating the adjustment of the position of the spline sleeve 6.

[0032] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A weft density adjustment device, characterized in that, The system includes a chassis (1), in which a worm gear (12) and a worm (11) are rotatably disposed. The worm gear (12) meshes with the worm (11). The worm (11) is coaxially connected to a driven gear one (13) and a driven gear two (14). A servo motor (2) is installed on the chassis (1). The servo motor (2) drives a drive gear one (3) and a drive gear two (4). The system also includes an adjusting gear set, which allows the drive gear one (3) to drive the driven gear one (13) or the drive gear two (4) to drive the driven gear two (14).

2. The weft density adjustment device according to claim 1, characterized in that, The diameter of the driven gear one (13) is smaller than that of the driven gear two (14).

3. The weft density adjustment device according to claim 2, characterized in that, The diameter of the first drive gear (3) is larger than that of the second drive gear (4).

4. The weft density adjustment device according to claim 1, characterized in that, The adjusting gear set includes a spline shaft (5) and a spline sleeve (6). The spline shaft (5) is rotatably mounted inside the housing (1). The spline sleeve (6) is fitted onto the spline shaft (5). The spline sleeve (6) is fitted with a first transmission gear (7), a second transmission gear (8), a third transmission gear (9), and a fourth transmission gear (10). The first driving gear (3) meshes with the first transmission gear (7), the second driving gear (4) meshes with the second transmission gear (8), the third transmission gear (9) meshes with the first driven gear (13), and the fourth transmission gear (10) meshes with the second driven gear (14). The set also includes an adjusting mechanism that can drive the spline sleeve (6) to move along its axial direction, so that the spline sleeve (6) can be keyed to the first transmission gear (7) and the third transmission gear (9) or keyed to the second transmission gear (8) and the fourth transmission gear (10).

5. The weft density adjustment device according to claim 4, characterized in that, The adjusting mechanism includes a screw (29), a through hole (18) on the spline sleeve (6), and an oblong hole (21) on the spline shaft (5). The lower end of the screw (29) passes through the through hole (18) and the oblong hole (21) and is threadedly connected to a ball head pin (30). The spline shaft (5) is provided with a positioning groove 1 (22) and a positioning groove 2 (23) for limiting the ball head pin (30). The oblong hole (21) is connected to the positioning groove 1 (22) and the positioning groove 2 (23).

6. The weft density adjustment device according to claim 5, characterized in that, A pull rod (25) is inserted into the end of the spline shaft (5). A stepped hole (28) is opened on the pull rod (25). The ball head pin (30) is set in the stepped hole (28). A spring (31) is sleeved on the screw (29). One end of the spring (31) abuts against the ball head pin (30), and the other end abuts against the step of the stepped hole (28).

7. The weft density adjustment device according to claim 4, characterized in that, The chassis (1) is provided with adjustment holes (27).

8. The weft density adjustment device according to claim 4, characterized in that, The spline sleeve (6) includes spline one (15), spline two (16) and spline three (17). The outer wall of the spline shaft (5) is provided with a connecting key (20), and the inner wall of the spline sleeve (6) is provided with a connecting groove (19) that cooperates with the connecting key (20).

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