CN211339921U - Linkage mechanism of quilting machine and quilting machine head provided with the linkage mechanism - Google Patents

Abstract

The utility model discloses a linkage mechanism of a quilting machine and a quilting machine head provided with the linkage mechanism, wherein the linkage mechanism comprises a transmission main shaft mounted on a support and two swing mechanisms driven by the transmission main shaft, a paddle is mounted on one swing mechanism, and a thread hook is mounted on another swing mechanism, so as to realize the linkage of the paddle and the thread hook. The quilting machine head comprises the linkage mechanism, a rotating mechanism and a quilting needle mechanism, a rotating disk is provided on the top of the support of the linkage mechanism, the rotating disk is located above the paddle and the thread hook, and the quilting needle mechanism is located above the rotating disk, and the rotation of the rotating disk enables the quilting machine head to sew various patterns on the cloth.

Description

Linkage mechanism of quilting machine and quilting machine head provided with the linkage mechanism

technical field

The utility model relates to the technical field of textiles, in particular to a quilting machine.

Background technique

The quilting machine is a textile machine used for sewing linear patterns on the surfaces of mattresses, bedspreads, quilts, etc.

According to the general working principle of sewing machinery and equipment, a quilting machine with a shuttle has a quilting head including a rotary shuttle that rotates below the cloth, a bottom thread roll below the cloth, and a quilting needle that moves vertically above the cloth. The bobbin thread is wound with the bobbin thread, and the bobbin thread reel is generally located at the rotation center of the rotary shuttle. During the work, the quilting needle goes down through the cloth, and the quilting thread on it is brought under the cloth. The shuttle rotates with the quilting thread, so that the quilting thread goes around the lower thread roll, that is, the lower thread roll passes through the quilting thread in the shape of a loop, so that the lower thread and the quilting thread are crossed together. In this way, the quilting machine The head is displaced relative to the cloth, and the quilting line and the bottom thread are continuously crossed and sewn on the cloth.

A shuttleless quilting machine, the quilting head of which includes a hook, a pick and a quilting needle, the bobbin thread located under the cloth is threaded on the hook, the quilting thread is threaded on the quilting needle, and the pick is located on the quilting needle and the thread side of the hook. During work, the quilting needle goes down through the cloth, brings the quilting thread under the cloth, the thread hook swings, the quilting needle rises, the tip of the thread hook penetrates between the quilting thread and the quilting needle, and the quilting needle continues When it rises, the picker moves in translation, and the cross-thread structure on it crosses the crossed quilting thread and the bottom thread, and the quilting thread and the bottom thread are tightened. After that, the thread hook swings back and the picker starts to reset. When the thread hook is not completely reset, the quilting needle goes down through the cloth again, passes through the lower thread on the thread hook, then rises and resets, and the thread hook continues to swing back and reset, so that the lower thread and the quilting thread are crossed together. After that, the thread hook swings again with the bottom thread, the tip of the thread hook is inserted between the quilting thread and the quilting needle, the paddle moves in translation, and the forked thread structure on it crosses the crossed quilting thread and the bottom thread. When the quilting thread and the bobbin thread are tightened, and the thread hook is swung back but not in place, the quilting needle goes down through the bobbin thread, and the quilting thread crosses the bobbin thread. In this way, the quilting head is displaced relative to the cloth, and the quilting line and the bottom thread are continuously crossed and sewn on the cloth.

Utility model content

The technical problem solved by the utility model is to realize the linkage between the pick and the hook of the quilting machine.

In order to solve the above-mentioned technical problems, the utility model provides the following technical solutions: a linkage mechanism of a quilting machine, including a transmission main shaft, a first swing mechanism and a second swing mechanism installed on the support, and the paddle is installed on the first swing mechanism. On the mechanism, the wire hook is installed on the second swing mechanism, the head end of the transmission main shaft is connected with the power source, the middle part of the transmission main shaft is provided with a power transmission steering mechanism, the first swing mechanism is connected with the power transmission steering mechanism, and the tail end of the transmission main shaft is connected with the power transmission steering mechanism. connected with the second swing mechanism.

According to the above technical solution, the power source drives the transmission main shaft, the transmission main shaft transmits the torque to the first swing mechanism and the second swing mechanism respectively, the first swing mechanism drives the paddle to swing horizontally, and the second swing mechanism drives the wire hook in the vertical plane. Swing, and then realize the linkage between the pick and the hook.

The utility model adopts a transmission main shaft to drive the first swing mechanism and the second swing mechanism. As long as the linkage relationship between the first swing mechanism and the second swing mechanism is determined during design and manufacture, the dial driven by the first swing mechanism can be The sheet and the thread hook driven by the second swing mechanism are linked according to the determined linkage relationship, so as to ensure the normal operation of the quilting machine. Compared with the prior art using two driving mechanisms to drive the paddle and the wire hook respectively, the linkage mechanism of the present invention makes the linkage relationship between the paddle and the wire hook more stable.

A quilting head, comprising the above-mentioned linkage mechanism, a rotating mechanism and a quilting needle mechanism, the rotating mechanism is arranged on the quilting head seat, the support of the linkage mechanism is installed on the rotating part of the rotating mechanism, and the support of the support is The top is provided with a turntable, the turntable is located above the pick and the thread hook, and the center of the turntable is provided with a pin hole; the quilting needle mechanism is located above the turntable and is installed on the quilting head seat, and the quilting needle mechanism includes quilting The needle and the cam mechanism that drives the quilting needle up and down.

Description of drawings

The utility model will be further described below in conjunction with the accompanying drawings:

Fig. 1 is the schematic diagram of the quilting head;

FIG. 2 is a schematic diagram of the combined structure of the rotating mechanism 200 and the linkage mechanism 100 in FIG. 1;

FIG. 3 is a schematic diagram of the combined structure of the rotating mechanism 200 and the linkage mechanism 100 viewed from below in FIG. 2;

FIG. 4 is a schematic diagram of the linkage mechanism 100 in FIG. 2;

FIG. 5 is a schematic diagram of the linkage mechanism 100 observed from below in FIG. 4;

FIG. 6 is a schematic diagram of the linkage mechanism 100 observed from the rear in FIG. 4;

FIG. 7 is a schematic diagram of the quilting needle mechanism 300 in FIG. 1;

FIG. 8 is a schematic view of the quilting needle mechanism housing 303 in FIG. 7 after being hidden;

FIG. 9 is an enlarged view of part A in FIG. 8 .

Description of symbols in the figure:

100. Linkage mechanism;

200, rotating mechanism; 201, second motor; 202, reducer; 203, bracket; 204, bracket plate;

300, quilting needle mechanism; 301, quilting needle; 302, cam mechanism; 303, quilting needle mechanism shell; 304, needle bar; 305, hinge shaft; 306, connecting rod; 307, cam; 308, transmission belt; 309, third motor; 310, sleeve; 311, camshaft;

400, quilting head seat; 401, upper beam; 402, lower beam; 403, left column; 404, right column;

10. Support;

20, transmission main shaft; 21, power source; 22, power transmission steering mechanism; 221, first bevel gear; 222, second bevel gear; 223, housing of power transmission steering mechanism;

30, the first swing mechanism; 31, the first shaft; 32, the first pulley; 33, the second shaft; 34, the second pulley; 35, the swing module; 36, the first eccentric shaft; 37, the second eccentric axis;

40, the second swing mechanism; 41, the connecting rod; 42, the swing rod; 43, the support seat; 44, the swing shaft; 45, the third eccentric shaft;

50. Picker; 51. Fork structure of picker;

60. Line hook;

70. Turntable; 71. Pinhole;

81. The thread spool of the bottom thread; 82. The thread spool of the quilting thread.

Detailed ways

As shown in FIG. 1 , a quilting head includes a linkage mechanism 100 , a rotating mechanism 200 , a quilting needle mechanism 300 and a quilting head seat 400 .

4 to 6 , the linkage mechanism 100 includes a transmission spindle 20, a first swing mechanism 30 and a second swing mechanism 40 mounted on the support 10, the paddle 50 is mounted on the first swing mechanism, the wire hook 60 It is installed on the second swing mechanism, the head end of the transmission main shaft is connected with the power source 21, the middle part of the transmission main shaft is provided with a power transmission steering mechanism 22, the first swing mechanism is connected with the power transmission steering mechanism, and the tail end of the transmission main shaft is connected with the second Swing mechanism connection.

The power source 21 is a first motor and is installed on the support 10 . The transmission main shaft 20 is pivoted on the support 10, the power source drives the transmission main shaft to rotate, the transmission main shaft transmits the torque vertically to the first swing mechanism 30 through the power transmission steering mechanism 22, and the power of the second swing mechanism 40 comes directly from the transmission main shaft. 20. Therefore, the direction in which the first swing mechanism 30 swings the paddle 50 is perpendicular to the direction in which the second swing mechanism 40 swings the hook 60, and the swing direction of the paddle is perpendicular to the swing direction of the hook, which is required for the normal operation of the quilting machine.

The power transmission steering mechanism 22 includes a pair of first bevel gears 221 and second bevel gears 222 meshed together, so as to realize the vertical transmission of power to the transmission main shaft 20 . The first bevel gear is mounted on the transmission main shaft 20 , and the second bevel gear is mounted on the first rotating shaft 31 of the first swing mechanism 30 .

The first swing mechanism 30 includes a first shaft 31, a first pulley 32, a second shaft 33, a second pulley 34, and a swing module 35; the first shaft is pivoted on the support 10, and the first pulley is installed On the first rotating shaft, the second pulley is installed on the second rotating shaft, the second rotating shaft is pivotally connected to the support, the first pulley and the second pulley are connected by a synchronous belt; the top of the first rotating shaft is provided with a first pulley The eccentric shaft 36, the top end of the second rotating shaft is provided with a second eccentric shaft 37, one end of the swing module 35 is pivotally connected to the first eccentric shaft, the other end of the swing module is pivotally connected to the second eccentric shaft, the paddle 50 Installed in the middle of the pendulum module.

The transmission main shaft 20 transmits the power to the first rotating shaft 31 through the first bevel gear 221 and the second bevel gear 222, the first rotating shaft transmits the power to the first pulley 32, and the first pulley drives the second pulley 34 through the synchronous belt , the second pulley drives the second shaft 33, so that the first shaft rotates synchronously with the second shaft. The first eccentric shaft 36 rotates with the first rotating shaft 31, the second eccentric shaft 37 rotates with the second rotating shaft 33, the first eccentric shaft and the second eccentric shaft drive the swing module 35 to swing back and forth, and the swing module drives the dial on it. The sheet 50 swings back and forth.

The second swing mechanism 40 includes a connecting rod 41, a swing rod 42, a support base 43, and a swing shaft 44; the rear end of the transmission main shaft 20 is provided with a third eccentric shaft 45, and the first end of the connecting rod is pivotally connected to the third eccentric shaft , the tail end of the connecting rod is pivotally connected with the head end of the swing rod, the tail end of the swing rod is fixedly connected with the swing shaft, the swing shaft is pivoted on the support seat 43, and the support seat is installed on the support seat 10; the wire hook 60 Mounted on the swing shaft.

The transmission main shaft 20 drives the connecting rod 41 to act through the third eccentric shaft 45 at its tail end, the connecting rod drives the swing rod 42 to swing, the swing rod drives the swing shaft 44 to reciprocate, the swing shaft rotates relative to the support base 43, and the swing shaft drives the wire on it. The hook 60 swings back and forth.

1 to 3, the rotating mechanism 200 is arranged on the quilting head base 400, the support 10 of the linkage mechanism 100 is installed on the rotating part of the rotating mechanism, the top of the support is provided with a turntable 70, and the turntable is located on the dial Above the sheet 50 and the hook 60, a pin hole 71 is opened in the center of the turntable; with reference to Figures 7 to 9, the quilting needle mechanism is located above the turntable and is installed on the quilting head seat, and the quilting needle mechanism includes The quilting needle 301 and the cam mechanism 302 for driving the quilting needle to rise and fall.

2 and 3 , the rotating mechanism 200 includes a second motor 201 and a reducer 202 , the motor shaft of the second motor is connected to the power input shaft of the reducer, and the power output shaft of the reducer is connected to the support 10 . The rotation of the rotating mechanism 200 can drive the support 10 and the entire linkage mechanism 100 to rotate. The support 10 drives the turntable 70 to rotate synchronously. During the rotation of the turntable, the position of the pin hole 71 remains unchanged. Due to the rotation of the linkage mechanism 100, the pick 50 and the thread hook 60 rotate accordingly, although the quilting needle 301 is still inserted downward into the needle insertion hole 71 with the same position, the quilting thread on the quilting needle and the bottom thread cross the cloth for Quilting, however, the position where the bottom thread and the quilting line intersect changes, and this intersection is the basic unit that constitutes the pattern on the cloth. The change in the position of this intersection can constitute different patterns or patterns on the cloth. The quilting head moves relative to the vertical and horizontal directions of the cloth, and this intersection point can expand vertically and horizontally to form larger patterns or patterns. This is exactly the role of the rotating mechanism 200 of the present invention. The rotation angle of the second motor 201 is identified by an encoder, and the encoder is connected to the control system, and the control system controls the rotation angle of the second motor according to the program, thereby controlling the rotation angle of the turntable. Among them, the cooperation of the programmed control system and the encoder to control the rotation angle of the motor belongs to the prior art.

The fixed part of the rotating mechanism 200 is provided with a bracket 203, the top of the bracket is provided with a bracket plate 204, a circular hole is formed in the center of the bracket plate, and the turntable 70 is fitted in the circular hole. The round holes on the bracket plate can limit the position of the turntable and ensure that the pin hole 71 on the turntable remains in the central position, so that the quilting needles that rise and fall in a straight line can be accurately inserted into the pin holes. In addition, the support plate has a supporting effect on the cloth, so as to prevent the cloth from being wound by the turntable due to the rotation of the turntable.

As shown in FIG. 9, the quilting needle 301 is inserted at the bottom end of the needle bar 304, the needle bar is fixed with a hinge shaft 305, the hinge shaft is hinged with the head end of the connecting rod 306, and the tail end of the connecting rod is hinged with the cam 307, The camshaft is connected to the third motor 309 through a transmission belt 308 . The needle bar 304 is fitted in the sleeve 310, and the sleeve guides the lifting and lowering of the needle bar to ensure that the quilting needle moves up and down in a straight line. The above-mentioned sleeve 310, camshaft 311, and third motor are all installed on the frame of the quilting needle mechanism.

As shown in FIG. 1 , the quilting head base 400 includes a beam and a column, wherein the beam includes an upper beam 401 and a lower beam 402 , and the column includes a left column 403 and a right column 404 . The frame of the quilting needle mechanism is slidably fitted on the upper beam 401 , and the frame of the rotating mechanism supporting the rotating mechanism 200 is slidably fitted on the lower beam 402 . The frame of the quilting needle mechanism is installed on the first transmission belt, the frame of the rotating mechanism is installed on the second transmission belt, and one of the pulleys of the first transmission belt is coaxially arranged with one of the pulleys of the second transmission belt, that is, the first transmission belt. A pulley of a transmission belt and a pulley of the second transmission belt are mounted on a vertical shaft, and the vertical shaft is connected with the fourth motor. In this way, the fourth motor drives the vertical shaft to rotate, the vertical shaft drives the first transmission belt and the second transmission belt to drive synchronously, the frame of the quilting needle mechanism driven by the first transmission belt and the frame of the rotating mechanism driven by the second transmission belt Synchronous lateral displacement, and further, the quilting needle mechanism 300, the rotating mechanism 200 and the linkage mechanism 100 are synchronously displaced laterally, so as to realize the lateral displacement of the quilting head relative to the cloth on the frame of the quilting machine.

The quilting head seat 400 is slidably fitted on the frame of the entire quilting machine. Driven by the longitudinal drive mechanism, the quilting head seat is displaced along the longitudinal direction of the frame of the quilting machine, so as to realize the relative position of the quilting head. Longitudinal displacement of the fabric on the frame of the quilting machine. Wherein, the longitudinal driving mechanism can be a transmission belt, a screw mechanism, or a rack-and-pinion mechanism, or other driving mechanisms in the prior art that can drive the quilting head base to translate linearly along the frame of the quilting machine.

In actual operation, the cloth is unfolded on the frame of the quilting machine, the turntable 70 is located under the cloth, the quilting needle 301 is located on the cloth, and the pick 50 and the hook 60 are located under the cloth. The quilting thread is threaded on the quilting needle, at the tip of the quilting needle, the quilting needle goes down through the cloth, and the quilting thread is brought under the cloth, the hook 60 swings, the quilting needle rises, and the quilting thread becomes loose In a galloping shape, the tip of the thread hook penetrates between the quilting thread and the quilting needle, the quilting needle continues to rise, the paddle 50 swings, that is, translates, and the forked thread structure 51 on it crosses the crossed quilting thread And the bobbin thread (initially, one end of the bobbin thread can be pulled by the worker to facilitate the crossing of the bobbin thread and the quilting thread) the quilting thread and the bobbin thread are tightened, after that, the thread hook 60 swings back, and the pick 50 starts to reset. When the thread hook is not completely reset, the quilting needle 301 goes down through the cloth again, passes through the lower thread on the thread hook, then rises and resets, and the thread hook continues to swing back and reset, so that the lower thread and the quilting thread cross together. After that, the thread hook swings again with the bottom thread, the tip of the thread hook (where the bottom thread is inserted) is inserted between the quilting thread and the quilting needle 301, the pick 50 is translated again, and the forked thread structure 51 on it Then fork the crossed quilting thread and the bottom thread, the quilting thread and the bottom thread are tightened, and when the hook 60 is swung back but not in place, the quilting needle goes down through the bottom thread, and the quilting thread crosses the bottom thread. In this way, the quilting head is displaced longitudinally and laterally relative to the cloth, and the quilting line and the bottom thread are continuously intersected to sew on the cloth.

The above content is only the preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific embodiment and application scope, and the content of this description should not be construed as Limitations of the present invention.

Claims (6)

1. A link gear of quilter, including installing transmission main shaft (20), first swing mechanism (30) and second swing mechanism (40) on support (10), plectrum (50) are installed on first swing mechanism, and wire hook (60) are installed on second swing mechanism, its characterized in that: the head end of the transmission main shaft is connected with a power source (21), the middle part of the transmission main shaft is provided with a power transmission steering mechanism (22), the first swing mechanism is connected with the power transmission steering mechanism, and the tail end of the transmission main shaft is connected with the second swing mechanism.

2. The linkage mechanism of claim 1, wherein: the power transmission steering mechanism (22) comprises a pair of a first bevel gear (221) and a second bevel gear (222) which are meshed together, the first bevel gear is arranged on the transmission main shaft (20), and the second bevel gear is arranged on a first rotating shaft (31) of the first swinging mechanism (30).

3. The linkage mechanism of claim 2, wherein: the first swing mechanism (30) comprises a first rotating shaft (31), a first belt wheel (32), a second rotating shaft (33), a second belt wheel (34) and a swing module (35); the first rotating shaft is pivoted on the support (10), the first belt wheel is arranged on the first rotating shaft, the second belt wheel is arranged on the second rotating shaft, the second rotating shaft is pivoted on the support, and the first belt wheel is connected with the second belt wheel through a synchronous belt; the top end of the first rotating shaft is provided with a first eccentric shaft (36), the top end of the second rotating shaft is provided with a second eccentric shaft (37), one end of a swinging module (35) is pivoted on the first eccentric shaft, the other end of the swinging module is pivoted on the second eccentric shaft, and the shifting piece (50) is arranged in the middle of the swinging module.

4. The linkage mechanism of claim 1, wherein: the second swinging mechanism (40) comprises a connecting rod (41), a swinging rod (42), a supporting seat (43) and a swinging shaft (44); the tail end of the transmission main shaft (20) is provided with a third eccentric shaft (45), the head end of a connecting rod is pivoted with the third eccentric shaft, the tail end of the connecting rod is pivoted with the head end of a swing rod, the tail end of the swing rod is fixedly connected with a swing shaft, the swing shaft is pivoted on a supporting seat (43), and the supporting seat is arranged on a support (10); the wire hook (60) is mounted on the swing shaft.

5. A quilting machine head is characterized in that: the quilting machine comprises a linkage mechanism (100) as claimed in claim 1, a rotating mechanism (200) and a quilting needle mechanism (300), wherein the rotating mechanism is arranged on a quilting head seat (400), a support (10) of the linkage mechanism is arranged on a rotating part of the rotating mechanism, a rotary table (70) is arranged at the top of the support, the rotary table is positioned above a plectrum (50) and a thread hook (60), and a needle inserting hole (71) is formed in the center of the rotary table; the quilting needle mechanism is positioned above the rotary disc and is arranged on the quilting head seat, and the quilting needle mechanism comprises a quilting needle (301) and a cam mechanism (302) for driving the quilting needle to lift.

6. The quilting machine head of claim 5 wherein: the fixed part of the rotating mechanism (200) is provided with a support (203), the top of the support is provided with a support plate (204), the center of the support plate is provided with a round hole, and the turntable (70) is matched in the round hole.

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