Rotary weft insertion Hangro loom

Abstract

The invention relates to the technical field of looms, and discloses a rotary weft insertion Hangro loom, which comprises a box body and a rapier tape wheel rotationally mounted on the box body through an output shaft, the rapier tape wheel is used for driving a weft insertion rapier tape, and the rotary weft insertion Hangro loom further comprises a cylindrical cam mechanism rotationally arranged in the box body and driven to rotate through an input shaft; and the swinging mechanism is arranged between the cylindrical cam mechanism and the output shaft and is used for driving the output shaft and the rapier tape wheel at the tail end of the output shaft to do reciprocating swinging motion. According to the Hangro loom with the rotary weft insertion function, the left-right movement of the sliding column, the sliding block and the toothed plate can be controlled by replacing the sleeve with different guide groove styles, then the driving wheel, the output shaft and the rapier belt wheel have different swing amplitudes so as to control the change of the instantaneous movement track of the weft insertion rapier belt in each stage, the control precision is high, and the practicability is high. And the cylindrical cam transmission system is stable in operation.

Description

Technical Field

[0001] The invention relates to the technical field of looms, in particular to a lanyard loom with rotary weft insertion. Background Art

[0002] Hang Luo is generally woven by rapier looms, in which the weft insertion mechanism is one of the core components; the weft insertion mechanism has very high requirements for motion characteristics. In the prior art, the weft insertion mechanism can generally be divided into a conjugate cam weft insertion mechanism, a spatial four-link weft insertion mechanism and a variable pitch weft insertion mechanism; among them, the conjugate cam weft insertion mechanism has a complex structure, high cost and great manufacturing difficulty; the spatial four-link weft insertion mechanism has an unsatisfactory movement law of the rapier head, and is difficult to adjust and prone to failure; although the variable pitch weft insertion mechanism has a simple structure, its motion accuracy is not high, and it is difficult to achieve high-precision weft insertion;

[0003] In addition, it is difficult for the existing weft insertion mechanism to change the instantaneous motion trajectory of the weft insertion sword belt at each stage during the weft insertion process, and the control accuracy is poor;

[0004] Therefore, we proposed a Hang Luo loom with rotary weft insertion. Summary of the invention

[0005] (1) Technical issues solved

[0006] In view of the shortcomings of the prior art, the present invention provides a Hang Luo loom with rotary weft insertion, which has the advantages of simple structure, stable operation, high precision and easy control of the motion trajectory of the weft insertion sword belt.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose of simple structure, stable operation, high precision, and easy control of the motion trajectory of the weft insertion sword belt, the present invention provides the following technical solutions: a rotary weft insertion Hang Luo loom, comprising a box body and a sword belt wheel rotatably mounted on the box body through an output shaft, the sword belt wheel is used to drive the weft insertion sword belt, and also includes:

[0009] The cylindrical cam mechanism is rotatably arranged in the housing and driven to rotate by the input shaft;

[0010] The swing mechanism is arranged between the barrel cam mechanism and the output shaft, and is used to drive the output shaft and the sword belt wheel at the end thereof to perform reciprocating swing motion.

[0011] As a preferred technical solution of the present invention, the cylindrical cam mechanism includes a rotating shaft and a sleeve mounted thereon, the end of the rotating shaft is fixedly connected to a fixed bearing, the fixed bearing is fixedly installed in the housing, and the outer wall of the sleeve is provided with guide grooves connected end to end.

[0012] As a preferred technical solution of the present invention, the guide grooves are a plurality of V-shaped bevel grooves arranged in a ring shape on the sleeve, and the ends of two adjacent V-shaped bevel grooves are connected.

[0013] As a preferred technical solution of the present invention, a driven bevel gear is fixedly mounted on one end of the rotating shaft, a driving bevel gear is meshed on the outer wall of the driven bevel gear, and the driving bevel gear is connected to the input shaft.

[0014] As a preferred technical solution of the present invention, the sleeve is movably mounted on the rotating shaft, and a side groove for taking out the sleeve is provided on the side of the box body.

[0015] As a preferred technical solution of the present invention, the outer wall of the rotating shaft is evenly provided with splines, and the inner wall of the sleeve is evenly provided with flower grooves coupled with the splines;

[0016] The closed end of the sleeve is connected to the other end of the rotating shaft through a fixing bolt.

[0017] As a preferred technical solution of the present invention, the swing mechanism includes a slider, a slide rail, a slide column, a tooth plate and a driving wheel, two slide rails are arranged in parallel in the box body, a slider is slidably arranged between the two slide rails, a slide column is provided on the top of the slider, and the slide column is slidably arranged in the guide groove;

[0018] A toothed plate is also fixedly mounted on the bottom of the sliding block, and the toothed plate is meshed with a driving wheel, and the driving wheel is fixedly mounted on the output shaft.

[0019] As a preferred technical solution of the present invention, the sliding column is telescopically arranged on the top of the sliding block.

[0020] As a preferred technical solution of the present invention, a support plate is fixedly installed at the bottom of the sliding column, and the support plate is movably arranged in a plate cavity in the sliding block and supported by a spring.

[0021] As a preferred technical solution of the present invention, the bottom of the support plate is rotatably connected with a screw rod, the screw rod is threadedly connected in a nut, and the nut is fixedly installed at the bottom of the slider.

[0022] (III) Beneficial effects

[0023] Compared with the prior art, the present invention provides a rotary weft insertion loom, which has the following beneficial effects:

[0024] 1. The rotary weft insertion Hang Luo loom can control the left and right movement of the slide column, the slider and the tooth plate by replacing the sleeve with different guide groove styles, so that the driving wheel, the output shaft and the sword belt wheel have different swing amplitudes to control the change of the instantaneous motion trajectory of the weft insertion sword belt at each stage. The control accuracy is high and the cylindrical cam transmission system operates stably.

[0025] 2. The rotary weft insertion Hang Luo loom has a simple and compact structure and a small size, and is easy to realize the lightweight and precision of the weft insertion mechanism of the loom and reduce the occupied space.

[0026] 3. The bevel gear transmission, cylindrical cam transmission and gear rack transmission systems of the rotary weft insertion loom are stable, efficient and high-precision, which is conducive to the high-precision movement of the weft insertion belt and also ensures the service life of the entire weft insertion mechanism.

[0027] 4. The sleeve of the rotary weft insertion loom can be easily disassembled, so that sleeves with different guide groove styles can be quickly installed and replaced, which is beneficial to weaving operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front view of the overall structure of the present invention;

[0029] Figure 2 It is a rear view of the overall structure of the present invention;

[0030] Figure 3 It is a cross-sectional view of the overall structure of the present invention;

[0031] Figure 4 It is an enlarged schematic diagram of the rotating shaft portion of the present invention;

[0032] Figure 5 It is an enlarged schematic diagram of the sleeve part of the present invention;

[0033] Figure 6 It is a cross-sectional view of the slider portion of the present invention.

[0034] In the figure: 1. housing; 2. input shaft; 3. output shaft; 4. sword belt pulley; 5. weft insertion sword belt; 6. active bevel gear; 7. driven bevel gear; 8. rotating shaft; 9. fixed bearing; 10. sleeve; 11. spline; 12. fixing bolt; 13. V-shaped bevel groove; 14. slide column; 15. slider; 16. slide rail; 17. tooth plate; 18. driving wheel; 19. side groove; 20. support plate; 21. plate cavity; 22. spring; 23. screw rod; 24. nut. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example:

[0037] See also Figure 1 -

[0038] Figure 6 A rotary weft insertion loom comprises a box body 1 and a sword belt wheel 4 rotatably mounted on the box body 1 through an output shaft 3, wherein the sword belt wheel 4 is used to drive a weft insertion sword belt 5. In this embodiment, as shown in FIG. Figure 3 As shown, the output shaft 3 is rotatably disposed in the housing 1;

[0039] The barrel cam mechanism is rotatably arranged in the housing 1 and driven to rotate by the input shaft 2. Specifically, the barrel cam mechanism includes a rotating shaft 8 and a sleeve 10 sleeved thereon. The end of the rotating shaft 8 is fixedly connected to a fixed bearing 9, and the fixed bearing 9 is fixedly installed in the housing 1, thereby fixing the position of the rotating shaft 8 and making it rotate stably. Figure 3 As shown, the outer wall of the sleeve 10 is provided with guide grooves connected end to end;

[0040] In this embodiment, a driven bevel gear 7 is fixedly mounted on one end of the rotating shaft 8, a driving bevel gear 6 is meshed with the outer wall of the driven bevel gear 7, and the driving bevel gear 6 is connected to the input shaft 2;

[0041] Therefore, when the input shaft 2 rotates, the rotation shaft 8 can be driven to rotate through the transmission of the active bevel gear 6 and the driven bevel gear 7 , and the rotation shaft 8 is kept in position by the fixed bearing 9 .

[0042] The swing mechanism is arranged between the cylindrical cam mechanism and the output shaft 3, and is used to drive the output shaft 3 and the sword belt wheel 4 at its end to do reciprocating swinging motion. Specifically, Figure 4 As shown, the swing mechanism includes a slider 15, a slide rail 16, a slide post 14, a tooth plate 17 and a driving wheel 18. Two slide rails 16 are arranged in parallel in the box body 1. The slider 15 is slidably arranged between the two slide rails 16. The top of the slider 15 is provided with a slide post 14, and the slide post 14 is slidably arranged in the guide groove. The bottom of the slider 15 is also fixedly installed with a tooth plate 17, which is meshed with the driving wheel 18, and the driving wheel 18 is fixedly installed on the output shaft 3;

[0043] like Figure 5As shown, the guide grooves are a plurality of V-shaped inclined grooves 13 arranged in a ring shape on the sleeve 10, and the ends of two adjacent V-shaped inclined grooves 13 are connected. In this way, when the rotating shaft 8 and the sleeve 10 rotate, the sliding column 14 can be driven to reciprocate left and right through the plurality of V-shaped inclined grooves 13. The sliding column 14 reciprocates left and right through the slider 15, driving the tooth plate 17 to reciprocate left and right. The tooth plate 17 reciprocates left and right to drive the driving wheel 18 meshed with its outer wall to reciprocate left and right, thereby driving the output shaft 3 and the sword belt wheel 4 to swing back and forth, thereby realizing the control of the movement of the weft insertion sword belt 5.

[0044] In this embodiment, the sleeve 10 is movably mounted on the rotating shaft 8, and a side groove 19 for taking out the sleeve 10 is also provided on the side of the housing 1, so that the sleeve 10 is replaceable, and further, the sleeve 10 with different guide groove patterns can be replaced;

[0045] By replacing the sleeve 10 with different guide groove patterns, the left and right movement of the slide column 14, the slider 15 and the tooth plate 17 can be controlled, so that the driving wheel 18, the output shaft 3 and the sword belt wheel 4 have different swing amplitudes to control the changes in the instantaneous motion trajectory of the weft insertion sword belt 5 at each stage. The control accuracy is high and the cylindrical cam transmission system operates stably.

[0046] like Figure 5 As shown, the outer wall of the rotating shaft 8 is evenly provided with splines 11, and the inner wall of the sleeve 10 is evenly provided with flower grooves coupled with the splines 11. The closed end of the sleeve 10 is connected to the other end of the rotating shaft 8 by a fixing bolt 12. The arrangement of the splines 11 and the flower grooves can ensure the synchronous rotation of the rotating shaft 8 and the sleeve 10 to prevent relative rotation between the two. The fixing bolts 12 can stably connect the rotating shaft 8 and the sleeve 10, and the disassembly is also convenient.

[0047] When disassembling, unscrew the fixing bolt 12, and then the entire sleeve 10 can be pulled out from the side groove 19 to replace other styles of sleeves 10.

[0048] In this embodiment, the slide post 14 is retractably disposed on the top of the slider 15. When the sleeve 10 needs to be removed or installed, the slide post 14 needs to be retracted to avoid obstructing the removal or installation of the sleeve 10.

[0049] Specifically, a support plate 20 is fixedly installed at the bottom of the slide column 14, and the support plate 20 is movably arranged in a plate cavity 21 in the slider 15 and supported by a spring 22. A screw rod 23 is rotatably connected to the bottom of the support plate 20, and the screw rod 23 is threadedly connected in a nut 24, and the nut 24 is fixedly installed at the bottom of the slider 15;

[0050] By rotating the screw rod 23, the screw rod 23 can move up and down under the action of the nut 24. The up and down movement of the screw rod 23 drives the support plate 20 to move up and down, and then the extension and retraction of the slide column 14 can be controlled. The adjustment is convenient, and the adjustment method of the nut 24 and the screw rod 23 is stable. The slide column 14 will not retract due to being pressed down. When in use, the slide column 14 is extended and inserted into the guide groove. When the sleeve 10 needs to be removed, the slide column 14 retracts and disengages from the guide groove, so that the slide column 14 will not block the translation of the sleeve 10.

[0051] The weft insertion mechanism provided by the present invention has a simple and compact structure and a small volume, and is easy to realize the lightweight and precision of the weft insertion mechanism of the loom and reduce the occupied space.

[0052] In addition, in the present invention, the bevel gear transmission, the cylindrical cam transmission, and the gear rack transmission systems are all stable, efficient, and high-precision, which is conducive to achieving high-precision movement of the weft insertion sword belt 5, and also ensures the service life of the entire weft insertion mechanism.

[0053] In the present invention, only by replacing the sleeve 10 with different guide groove patterns (i.e., only by changing the shape of the guide groove), the instantaneous motion trajectory of the weft insertion sword belt 5 at each stage can be controlled. Figure 5 The guide groove shape shown can make the weft insertion sword belt 5 move smoothly left and right. The inner angle size, inclination amplitude, opening length, etc. of the V-shaped inclined groove 13 can be adjusted as needed;

[0054] In this embodiment, the cylindrical cam mechanism realizes weft insertion by rotation. Compared with the traditional conjugate cam weft insertion mechanism, the spatial four-bar weft insertion mechanism and the variable pitch weft insertion mechanism, the structure is simpler, the traditional system is more stable, the control and adjustment of the sword head movement law is more convenient, and the movement accuracy is also higher.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary weft insertion loom, comprising a housing (1) and a sword belt wheel (4) rotatably mounted on the housing (1) via an output shaft (3), wherein the sword belt wheel (4) is used to drive a weft insertion sword belt (5), characterized in that: Also includes: A cylindrical cam mechanism is rotatably disposed in the housing (1) and driven to rotate by an input shaft (2); The swing mechanism is arranged between the cylindrical cam mechanism and the output shaft (3) and is used to drive the output shaft (3) and the sword belt wheel (4) at the end thereof to perform reciprocating swinging motion.

2. A rotary weft insertion loom according to claim 1, characterized in that: The cylindrical cam mechanism comprises a rotating shaft (8) and a sleeve (10) sleeved thereon, the end of the rotating shaft (8) is fixedly connected to a fixed bearing (9), the fixed bearing (9) is fixedly installed in the box body (1), and the outer wall of the sleeve (10) is provided with guide grooves connected end to end.

3. A rotary weft insertion loom according to claim 2, characterized in that: The guide grooves are a plurality of V-shaped inclined grooves (13) arranged in a ring shape on the sleeve (10), and the ends of two adjacent V-shaped inclined grooves (13) are connected.

4. A rotary weft insertion loom according to claim 2, characterized in that: A driven bevel gear (7) is fixedly mounted on one end of the rotating shaft (8), a driving bevel gear (6) is meshed with the outer wall of the driven bevel gear (7), and the driving bevel gear (6) is connected to the input shaft (2).

5. The rotary weft insertion loom according to claim 2, characterized in that: The sleeve (10) is movably mounted on the rotating shaft (8), and a side groove (19) for taking out the sleeve (10) is provided on the side of the box body (1).

6. A rotary weft insertion leno loom according to claim 5, characterized in that: The outer wall of the rotating shaft (8) is evenly provided with splines (11), and the inner wall of the sleeve (10) is evenly provided with flower grooves coupled with the splines (11); The closed end of the sleeve (10) is connected to the other end of the rotating shaft (8) via a fixing bolt (12).

7. A rotary weft insertion leno loom according to claim 2 or 3, characterized in that: The swing mechanism comprises a slider (15), a slide rail (16), a slide column (14), a tooth plate (17) and a driving wheel (18); two slide rails (16) are arranged in parallel in the box body (1); a slider (15) is slidably arranged between the two slide rails (16); a slide column (14) is provided on the top of the slider (15); and the slide column (14) is slidably arranged in the guide groove; A toothed plate (17) is also fixedly mounted on the bottom of the slider (15), and the toothed plate (17) is meshed with a driving wheel (18), and the driving wheel (18) is fixedly mounted on the output shaft (3).

8. A rotary weft insertion leno loom according to claim 7, characterized in that: The sliding column (14) is telescopically arranged on the top of the sliding block (15).

9. A rotary weft insertion loom according to claim 8, characterized in that: A support plate (20) is fixedly mounted on the bottom of the slide column (14); the support plate (20) is movably arranged in a plate cavity (21) in the slide block (15) and is supported by a spring (22).

10. A rotary weft insertion leno loom according to claim 9, characterized in that: The bottom of the support plate (20) is rotatably connected to a screw rod (23), the screw rod (23) is threadedly connected in a screw nut (24), and the screw nut (24) is fixedly mounted on the bottom of the slider (15).

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