CN214496703U - Rotary head pattern sewing machine - Google Patents

Abstract

The utility model relates to a rotating head pattern sewing machine which can perform high-speed sewing operation on sewing objects, the rotating head pattern sewing machine comprises a machine head, a machine head steering mechanism, a feeding mechanism and a controller, wherein the machine head is provided with a needle bar and a swinging mechanism, the swinging mechanism can drive the needle bar to swing back and forth, the headstock steering mechanism can drive the headstock to rotate, the feeding mechanism can drive the sewing material to move, and the controller can control the swinging direction of the needle bar to be the same as the moving direction of the sewing material, the controller changes the moving direction of the sewing material through the feeding mechanism, and simultaneously, the controller controls the sewing head to rotate through the head steering mechanism to change the swinging direction of the needle bar, so that the swinging direction of the needle bar after being changed can be the same as the moving direction of the sewing material after being changed, and therefore, the rotating head pattern sewing machine can reduce the pause time of the feeding mechanism so as to improve the operation efficiency of sewing the sewing material.

Description

Rotary head pattern sewing machine

Technical Field

The utility model relates to an ability control locomotive carries out pivoted rotating head style sewing machine, especially an ability simultaneous control locomotive rotates, control needle stick swings and control sewing thing moving direction's rotating head style sewing machine, lets rotating head style sewing machine in the period of making up sewing thing, and the swing direction and the sewing thing moving direction of needle stick can both keep unanimous.

Background

With the development of automation and high speed of sewing machines, industrial sewing machines have been developed for various purposes, in addition to saving manpower and increasing productivity, and have been developed for various purposes, so that a single-needle rotary head pattern sewing machine is available in the market, and the single-needle rotary head pattern sewing machine can rotate the direction of a needle and a rotating shuttle along with a sewing path, thereby simulating a sewing manner of rotating a sewing object in a process of manually operating a conventional sewing machine, and further, sewing stitches formed on the sewing object can be kept consistent.

Referring to fig. 1A and 1B, a head 81 and a head steering mechanism 82 are disposed above the single-needle rotary head pattern sewing machine 80, and a tank platform steering mechanism 83 and a feeding mechanism 84 are disposed below the head steering mechanism 82 of the single-needle rotary head pattern sewing machine 80, wherein the head 81 is mounted with a needle bar 811 capable of moving up and down along the Z axis and a needle 812 connected to the needle bar 811, and the head steering mechanism 82 is capable of driving the head 81 to rotate around the Z axis, so that the needle bar 811 and the needle 812 rotate together, and when the head 81 rotates, the tank platform steering mechanism 83 simultaneously drives a needle plate 85 and a rotating shuttle 86 to rotate around the Z axis, and the feeding mechanism 84 drives a sewing object 87 to move along the X axis direction and the Y axis direction in the drawing through a clamp, thereby, the headstock steering mechanism 82, the kettle shaft table steering mechanism 83 and the feeding mechanism 84 are mutually matched to form a sewing stitch on the sewing object 87 according to the sewing pattern, so that the traditional manual operation sewing machine can be replaced, and the requirement of beauty of the sewing stitch formed on the sewing object 87 can be met.

As shown in the figure, in the process of sewing the sewn object 87 by the single-needle rotating head pattern sewing machine 80, the needle 812 of the head 81 penetrates through the sewn object 87, so that an upper thread 813 installed on the needle 812 can be interwoven with a lower thread 861 installed on the rotating shuttle 86, however, when the needle 812 penetrates through the sewn object 87, the feeding mechanism 84 must temporarily stop driving the sewn object 87 or reduce the moving speed of the driven sewn object 87, otherwise, the feeding mechanism 84 continuously drives the sewn object 87 to move along the X-axis direction and the Y-axis direction, so that when the needle 811 penetrates through the sewn object 87, the sewn object 87 is pulled by the feeding mechanism 84 on the needle 812, the needle 812 is pulled and deformed by the moving sewn object 87, the needle 812 is damaged, or the sewn object 87 is provided with through holes with too large hole diameters, and the sewn object 87 becomes a defective product.

In order to avoid excessive bending deformation of the moving sewing material 87 of the needle 812, when the single-needle rotary head pattern sewing machine 80 performs sewing operation on the sewing material 87, the feeding mechanism 84 reduces the moving speed of the sewing material 87 in the process that the needle 812 penetrates through the cloth, or the feeding mechanism 84 intermittently drives the sewing material 87 to horizontally move, so that when the needle 812 penetrates through the sewing material 87, the feeding mechanism 84 stops driving the sewing material 87 to horizontally move, and when the needle 812 is pulled away from the sewing material 87, the feeding mechanism 84 restarts driving the sewing material 87 to horizontally move, although the feeding mechanism 84 intermittently drives the sewing material 87 to horizontally move can avoid bending deformation of the moving sewing material 812 by the moving sewing material 87, but the moving frequency of the feeding mechanism 84 driving the sewing material 87 is limited, in other words, the operating efficiency of the single-needle rotary head pattern sewing machine 80 to sew the sewing material 87 is reduced, or, in order to improve the efficiency of the single-needle rotary head pattern sewing machine 80 in sewing the sewn object 87, the feeding mechanism 84 continuously drives the sewn object 87 to move in the process that the needle 812 penetrates through the fabric, and in this sewing manner, the single-needle rotary head pattern sewing machine 80 can only perform sewing operation on the sewn object 87 (such as a thin fabric) with a relatively thin thickness or a relatively soft material, so that the application range of the single-needle rotary head pattern sewing machine 80 is limited.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at can change the motion of needle stick according to the moving means of sewing material, make the needle stick except can carrying out the up-and-down motion along the Z axle, the needle stick can also carry out the swing of horizontal direction, make the eedle run through after the sewing material, the needle stick can carry out the eedle simultaneously and swing under the condition that horizontal migration is carried out to the sewing material, and then the sewing material can not excessively pull the eedle in the removal in order to let the eedle can not produce the deformation, cause and improve the moving speed that feeding mechanism drove the sewing material, can improve the speed that the needle stick carries out up-and-down reciprocating motion relatively.

The utility model discloses a secondary aim at feeding mechanism drives the translation rate of sewing material and can keep even, or reduce the speed rate of change that intermittent type nature drove the sewing material and remove for the operating efficiency of rotating head style sewing machine sewing material can effectively improve, can enlarge rotating head style sewing machine's range of application even, makes rotating head style sewing machine not only can carry out the sewing operation to the sewing material that thickness is thinner or the material is softer, can also make the sewing material (for example: leather) that thickness is thicker or the sewing material that the material is harder.

In order to achieve the above object, the utility model provides a rotating head style sewing machine, rotating head style sewing machine can carry out the sewing operation to a sewing material to contain: a locomotive, a locomotive steering mechanism, a feeding mechanism and a controller, the locomotive has a needle stick mechanism and a wabbler mechanism, needle stick mechanism has a needle stick driving source and one through the needle stick of needle stick driving source ability up-and-down motion, and wabbler mechanism has one connect in the needle stick seat and the ability drive of needle stick the needle stick seat carries out reciprocating swing's swing driving source.

The sewing machine comprises a sewing material conveying mechanism, a head steering mechanism, a needle bar mechanism, a swinging mechanism, a feeding mechanism and a controller, wherein the head steering mechanism can drive the head to rotate by taking a Z axis as an axis so that the needle bar mechanism and the swinging mechanism can rotate together, the feeding mechanism is provided with an X axis feeding unit capable of driving the sewing material to move along the X axis direction and a Y axis feeding unit capable of driving the sewing material to move along the Y axis direction, and the controller is electrically connected with the needle bar mechanism, the swinging mechanism, the head steering mechanism and the feeding mechanism.

The controller controls the feeding mechanism to drive the sewing object to move, controls the swinging mechanism to enable the swinging direction of the needle bar to be the same as the moving direction of the sewing object, controls the feeding mechanism to change the moving direction of the sewing object, controls the headstock steering mechanism to drive the headstock to rotate, and controls the swinging mechanism and the headstock to rotate together to change the swinging direction of the needle bar, so that the swinging direction of the needle bar after being changed can be consistent with the moving direction of the sewing object after being changed.

In this embodiment, when the controller controls the feeding mechanism to drive the sewn article to move, the controller simultaneously controls the swinging mechanism to drive the needle bar to swing, so that a needle mounted on the needle bar can move synchronously with the sewn article while penetrating through the sewn article.

In addition, the swing mechanism is further provided with a swing transmission unit between the needle bar seat and the swing driving source, the swing transmission unit is provided with a swing arm connected to the swing driving source, a swing piece connected to the needle bar seat and a swing connecting rod positioned between the swing arm and the swing piece, and the swing driving source can drive the swing arm to rotate so as to drive the swing piece to swing.

In addition, the headstock is provided with an inner presser foot mechanism, the inner presser foot mechanism is provided with an inner presser foot transmission unit and an inner presser foot which is arranged in parallel on the needle bar, the inner presser foot transmission unit can drive the inner presser foot to move up and down, and the inner presser foot is connected with the needle bar seat, so that the needle bar and the inner presser foot can synchronously swing back and forth.

The rotary head pattern sewing machine is characterized in that the rotary head pattern sewing machine is further provided with a base located below the machine head and a kettle shaft table steering mechanism arranged on the base, the base is provided with a rotating seat capable of rotating and a rotating shuttle connected with the rotating seat, the kettle shaft table steering mechanism is electrically connected with the controller, and when the machine head rotates, the controller simultaneously controls the kettle shaft table steering mechanism to drive the rotating seat to rotate in the same direction by taking the Z shaft as the axis.

The utility model discloses a characteristics lie in that rotating head style sewing machine adds and is equipped with wabbler mechanism, and wabbler mechanism can drive the needle stick and swing, make the needle stick except receiving the upper shaft drive and can carry out the up-and-down motion, the needle stick can also receive wabbler mechanism simultaneously and drive and can carry out the swing of horizontal direction, therefore, after the sewing thing is run through to the needle, the needle stick can carry out the swing of horizontal direction simultaneously under the condition that the sewing thing carries out horizontal migration, make the sewing thing can not drag the sewing needle and let the shape of sewing needle produce and warp in the removal, cause the life that can improve the sewing needle.

In addition, when the controller controls the headstock steering mechanism to drive the headstock to rotate, the headstock rotating to drive the swing mechanism to rotate simultaneously can be realized, the swing direction of the needle bar can be changed, the controller can also control the feeding mechanism to change the moving direction of the sewing object through the X-axis feeding unit and the Y-axis feeding unit simultaneously, and then the sewing object moves in any mode, the swing direction of the needle bar after being changed can be consistent with the moving direction of the sewing object after being changed, therefore, the moving speed of the feeding mechanism for driving the sewing object can be effectively improved, the operating efficiency of the sewing object sewn by the rotating head pattern sewing machine can be effectively improved, the application range of the pattern sewing machine can be even expanded, and the rotating head sewing machine is suitable for sewing the sewing object with thicker thickness or harder material.

Drawings

FIG. 1A is a perspective view of a conventional rotary head pattern sewing machine;

FIG. 1B is a schematic view of a stitch being deformed by bending while a needle is being moved;

FIG. 2 is a perspective view of the rotary head pattern sewing machine according to the first preferred embodiment of the present invention;

fig. 3 is a schematic view of the steering mechanism of the utility model mounted on the vehicle head;

FIG. 4 is a schematic view of the needle bar mechanism, the inner presser foot mechanism and the swing mechanism inside the head;

FIG. 5A is a schematic view of the rocking mechanism connected to the needle bar mechanism;

FIG. 5B is an exploded view of the rocking mechanism attached to the needle bar mechanism;

FIGS. 6A and 6B are schematic views showing the swing mechanism driving the needle bar to swing;

FIG. 7 is a schematic view of the mounting of the kettle pillow block and the rotating shuttle mechanism on the rotating seat;

FIG. 8 is a schematic view of a kettle shaft table steering mechanism mounted on a rotating seat;

FIG. 9 is a schematic block diagram of the controller electrically connected to the needle bar mechanism, the swing mechanism, the headstock steering mechanism, the feeding mechanism and the kettle shaft table steering mechanism;

FIG. 10 is a flow chart of steps of a sewing method;

FIG. 11 is a schematic view of a stitching path;

FIG. 12 is a schematic view of the feeding mechanism driving the sewn product to move laterally;

FIG. 13A is a schematic view of a needle obliquely inserted into a sewn article;

FIG. 13B is a schematic view of the needle being oscillated to transition from the first tilted state to the parallel state;

FIG. 14 is a schematic view of a sewn article formed with a plurality of stitches parallel to a first direction;

fig. 15 is a schematic view of the head steering mechanism driving the head to rotate; and

fig. 16 and 17 are schematic views of a rotary head pattern sewing machine according to a second preferred embodiment of the present invention.

Description of reference numerals: 1-rotating head pattern sewing machine; 10-sewing machine body; 11-vehicle head; 12-a pillar; 13-a base; 14-a needle bar mechanism; 141-needle bar drive unit; 141 a-needle bar drive source; 141 b-an upper axis; 141 c-first needle bar pulley; 141 d-needle bar drive belt; 141 e-a second needle bar pulley; 141 f-crankshaft connecting rod; 142-a needle bar actuation unit; 142 a-a needle bar; 142 b-machine needle; 142 c-needle bar stopper; 142 d-machine needle seat; 15-inner presser foot mechanism; 151-inner presser foot; 152-internal pressure foot transmission unit; 153-inner presser foot limiting block; 16-a rocking mechanism; 161-a rocking drive source; 161 a-axis of rotation; 162-needle bar seat; 162 a-a connecting portion; 162 b-needle bar penetration part; 162 c-a housing space; 163-a wobble transmission unit; 163 a-swing arm; 163 b-swing link; 163 c-rocking member; 163c 1-rocking arm; 163c 2-rocking axis; 164-pivot point; 17-a rotating seat; 171-kettle pillow block; 172-needle plate; 172 a-pinhole; 18-a rotating shuttle mechanism; 181-a rotating shuttle driving unit; 181 a-rotating shuttle drive source; 181 b-lower shaft; 181c — a first rotating shuttle pulley; 181 d-a second rotary shuttle pulley; 181 e-rotating shuttle drive belt; 182-rotating shuttle actuating unit; 182 a-kettle shaft; 182 b-rotating shuttle; 182 c-bevel gear set; 20-a headstock steering mechanism; 21-a headstock gear box; 22-a headstock drive source; 23-headstock rotation column; 30-a feeding mechanism; 31-X axis feed unit; a 32-Y axis feed unit; 33-a gripper unit; 40-a kettle shaft platform steering mechanism; 41-kettle shaft table gear box; 42-kettle shaft table driving source; 43-a kettle shaft table rotating column; 50-a controller; 60-sewing the object; sewing mesh 61; 70-a stitching path; 71-sewing points; 72-stitch distance; a 1-parallel state; a2 — first tilt state; a3 — second tilt state; f-a sewing method; d1-first direction; d2-second direction; an L-axis of rotation; s1-data acquisition step; s2-moving step; s3-sewing step; s4-turning step; s5-moving step again; s6-sewing again; 80-single needle rotating head pattern sewing machine; 81-vehicle head; 811-needle bar; 812-a needle; 813-facial line; 82-a headstock steering mechanism; 83-kettle shaft platform steering mechanism; 84-a feeding mechanism; 85-needle plate; 86-rotating shuttle; 861-bottom line; 87-stitching.

Detailed Description

The invention will be further described with reference to specific embodiments and drawings, the advantages and features of which will become more apparent as the description proceeds.

In this drawing, the both sides of X axle are the operator towards the utility model discloses rotating head style sewing machine 1's the left and right sides, and the both sides of Y axle are the operator towards the utility model discloses rotating head style sewing machine 1's front and back both sides, as for the both sides of Z axle are the operator towards the utility model discloses rotating head style sewing machine 1's upper and lower both sides, and then in the present case specification, ", left", "" right "", "" preceding "", "" back "", "" upper "", "" lower "", and directional vocabulary such as indicate the sewing machine operator to face the utility model discloses rotating head style sewing machine 1's direction.

Referring to fig. 2 and 3, in a first preferred embodiment, the rotary head pattern sewing machine 1 of the present invention is mainly composed of a sewing machine body 10, a head turning mechanism 20, a feeding mechanism 30, a kettle platform turning mechanism 40 and a controller 50 (as shown in fig. 9), the sewing machine body 10 is provided with three parts of a head 11, a pillar 12 and a base 13, as shown in fig. 3 and 4, a needle bar mechanism 14, an inner presser foot mechanism 15 and a swing mechanism 16 are provided inside the head 11, wherein the needle bar mechanism 14 has a needle bar driving unit 141 connected to the head 11 and a needle bar actuating unit 142 connected to the needle bar driving unit 141, in this embodiment, the needle bar driving unit 141 has a needle bar driving source 141a capable of generating rotary power and an upper shaft 141b capable of rotating relative to the head 11, the needle bar driving source 141a is fixed to the head 11, and the needle bar driving source 141a is assembled with a first needle bar pulley 141c, and the first needle bar pulley 141c is installed with a needle bar transmission belt 141d to connect to a second needle bar pulley 141e connected to the upper shaft 141b, so that the needle bar driving source 141a can drive the upper shaft 141b to rotate through the first needle bar pulley 141c, the needle bar transmission belt 141d and the second needle bar pulley 141e, wherein the upper shaft 141b is horizontally arranged on the head 11, and the upper shaft 141b is provided with a crankshaft connecting rod 141f above the needle bar actuating unit 142 to connect to the needle bar actuating unit 142.

As shown in the drawing, the needle bar actuating unit 142 has a needle bar 142a capable of moving up and down and a needle 142b assembled to the needle bar 142a, the needle bar 142a is vertically disposed on an upper shaft 141b of the needle bar driving unit 141, the needle bar 142a is connected to a crank shaft link 141f of the needle bar driving unit 141, so that the upper shaft 141b drives both the needle bar 142a and the needle 142b to move up and down along a Z axis by the needle bar driving source 141a, the inner presser foot mechanism 15 has an inner presser foot 151 disposed in parallel on the needle bar 142a, and the inner presser foot 151 is connected to the upper shaft 141b by an inner presser foot transmission unit 152, so that the inner presser foot transmission unit 152 can drive the inner presser foot 151 to move up and down when the needle bar driving source 141a drives the upper shaft 141b to rotate.

Referring to fig. 5A and 5B, the swing mechanism 16 is connected to the head 11, in this embodiment, the swing mechanism 16 has a swing driving source 161 fixed to the head 11, a needle bar holder 162 capable of swinging with respect to the head 11, and a swing transmission unit 163 located between the swing driving source 161 and the needle bar holder 162, the swing driving source 161 has a rotating shaft 161a capable of generating a rotating power, and the rotating shaft 161a is parallel to the upper shaft 141B of the needle bar mechanism 14, wherein the needle bar holder 162 has a connecting portion 162a connected to the swing driving source 161 and a needle bar penetrating portion 162B formed at a lower end portion of the connecting portion 162a, and the needle bar penetrating portion 162B simultaneously connects the needle bar 142a of the needle bar mechanism 14 and the inner pressure foot 151 of the inner pressure foot mechanism 15, in this embodiment, the needle bar penetrating portion 162B is formed with a receiving space 162c, wherein the needle bar 142a is installed with a needle bar stopper 142c inside the receiving space 162c, the inner presser foot 151 is provided with an inner presser foot stopper 153 located inside the accommodating space 162c, so that the needle bar 142a and the inner presser foot 151 are respectively driven by the needle bar stopper 142c and the inner presser foot stopper 153 to move up and down, as shown in the figure, the swing transmission unit 163 has three parts, namely, a swing arm 163a, a swing link 163b and a swing member 163c, one end of the swing arm 163a is fixed to the rotating shaft 161a, and one end of the swing arm 163a away from the rotating shaft 161a is pivotally connected to the swing link 163b, however, opposite ends of the swing member 163c are respectively connected to the swing link 163b and the needle bar holder 162, so that the swing member 163c is located between the swing link 163b and the needle bar holder 162, in this embodiment, the swing member 163c is provided with a swing arm 163c1 pivotally connected to the swing link 163b and a swing shaft 163c2 connected to the swing arm 163c1, and the swing arm 163c1 is locked to the swing shaft 163c2, while swing axis 163c2 is parallel to upper axis 141b of needle bar mechanism 14 and swing axis 163c2 is substantially perpendicular to swing arm 163c 1.

Referring to fig. 6A and 6B, the swing driving source 161 rotates to make the swing arm 163a of the swing transmission unit 163 synchronously rotate, so that a pivot point 164 formed between the swing arm 163a and the swing link 163B can move around the rotation axis 161a, when the swing arm 163a rotates, the needle bar holder 162 can simultaneously drive the needle bar 142a of the needle bar mechanism 14 and the inner press foot 151 of the inner press foot mechanism 15 to reciprocate along a direction perpendicular to the swing axis 163c2, because the length of the swing arm 163a, the swing link 163B, the swing arm 163c1 and the swing arm 163a is substantially perpendicular to the swing link 163B, the swing link 163B is substantially perpendicular to the swing arm 163c1, and the length of the swing arm 163a is much smaller than the length of the swing arm 163c1, so that the angle of the needle bar holder 162 rotates is much smaller than the angle of the rotation axis 161a, and the torque required by the swing driving source 161 is much smaller than the moment required by the needle bar holder 162, further, the swing drive source 161 can be selected to have a small volume.

Referring to fig. 2, the pillar 12 of the sewing machine body 10 is connected to the base 13 of the sewing machine body 10, and the base 13 is provided with a rotating seat 17 at an end away from the pillar 12, as shown in fig. 7 and 8, a rotating shuttle mechanism 18 composed of a rotating shuttle driving unit 181 and a rotating shuttle actuating unit 182 is installed inside the base 13, a kettle pillow 171 is installed inside the rotating seat 17, and a needle plate 172 is installed above the rotating seat 17, and the needle plate 172 is provided with a pair of needle holes 172a located on a needle 142b, in this embodiment, the extending direction of the needle holes 172a corresponds to the swinging direction of the needle bar 142a, as shown in the figure, the rotating shuttle driving unit 181 has a rotating shuttle driving source 181a capable of generating rotating power and a lower shaft 181b capable of rotating relative to the rotating seat 17, the rotating shuttle driving source 181a is fixed to the rotating seat 17, and, the rotating shuttle driving source 181a is connected to a first rotating shuttle pulley 181c assembled outside the rotating seat 17, and one end of the lower shaft 181b is connected to a second rotating shuttle pulley 181d pivotally connected to the rotating seat 17, wherein the first rotating shuttle pulley 181c and the second rotating shuttle pulley 181d are assembled together to form a rotating shuttle driving belt 181e, so that the rotating shuttle driving source 181a can drive the lower shaft 181b to rotate via the first rotating shuttle pulley 181c, the rotating shuttle driving belt 181e and the second rotating shuttle pulley 181d, however, the lower shaft 181b is horizontally disposed on the base 13, and one end of the lower shaft 181b far from the second rotating shuttle pulley 181d penetrates into the interior of the autoclave shaft table 171 to be assembled to the rotating shuttle actuating unit 182.

As shown in the figure, the rotating shuttle actuating unit 182 of the rotating shuttle mechanism 18 has a vertically disposed kettle shaft 182a, the kettle shaft 182a is pivotally connected to the kettle shaft platform 171, and the upper end of the kettle shaft 182a is connected to a rotating shuttle 182b, and the lower end of the kettle shaft 182a is provided with a bevel gear set 182c located inside the kettle shaft platform 171 to be connected to the lower shaft 181b of the rotating shuttle driving unit 181, so that when the rotating shuttle driving source 181a of the rotating shuttle driving unit 181 drives the lower shaft 181b of the rotating shuttle driving unit 181 to rotate, the lower shaft 181b can drive the rotating shuttle 182b to rotate by taking the kettle shaft 182a as an axis via the bevel gear set 182 c.

Referring to fig. 3 again, the head steering mechanism 20 is located between the head 11 of the sewing machine body 10 and the pillar 12 of the sewing machine body 10, so that the head 11 is connected to the pillar 12 via the head steering mechanism 20, wherein the head steering mechanism 20 has a head gear box 21 fixed to the pillar 12 and a head driving source 22 assembled to the head gear box 21, as shown in the figure, the head gear box 21 is connected to the upper surface of the head 11 via a head turning pillar 23 in a hollow state, and the head driving source 22 can drive the head 11 to turn around a turning axis L in a vertical state via the head gear box 21, so that the head 11 can rotate relative to the pillar 12, and when the head 11 rotates, the needle bar mechanism 14, the inner presser foot mechanism 15 and the swing mechanism 16 all rotate synchronously with the head 11, the axis of rotation L is parallel to the Z axis.

As shown in fig. 2, the feeding mechanism 30 is mounted on the base 13 of the sewing machine body 10, wherein the feeding mechanism 30 has an X-axis feeding unit 31 capable of moving along the X-axis direction and a Y-axis feeding unit 32 capable of moving along the Y-axis direction, in this embodiment, the X-axis feeding unit 31 is assembled with a clamp unit 33, and the Y-axis feeding unit 32 is loaded with the X-axis feeding unit 31, so that the Y-axis feeding unit 32 can drive both the X-axis feeding unit 31 and the clamp unit 33 to move along the Y-axis relative to the base 13.

Referring to fig. 8, the kettle shaft table steering mechanism 40 has a kettle shaft table gear box 41 located at the lower rotating base 17 and a kettle shaft table driving source 42 assembled to the kettle shaft table gear box 41, as shown in the figure, a kettle shaft platform rotating column 43 is arranged above the kettle shaft platform gear box 41 to be connected with the rotating seat 17, the kettle shaft platform driving source 42 can drive the rotating seat 17 to rotate by taking the rotating axis L as the axis through the kettle shaft platform gear box 41, so that the rotating seat 17 can rotate relative to the base 13, when the rotating base 17 rotates, the rotating shuttle 18 rotates synchronously with the head 11 of the sewing machine body 10, in this embodiment, when the headstock steering mechanism 20 drives the headstock 11 of the sewing machine body 10 to rotate, the kettle shaft table steering mechanism 40 will also drive the rotating base 17 to rotate, and the rotating axis L overlaps the axis of the kettle shaft table rotating column 43.

Referring to fig. 9, the controller 50 is electrically connected to the needle bar mechanism 14, the swing mechanism 16, the head turning mechanism 20, the feeding mechanism 30 and the kettle shaft platform turning mechanism 40, and the controller 50 can control the needle bar driving source 141a of the needle bar mechanism 14 to operate, control the rotating shaft 161a of the swing mechanism 16 to operate, control the head driving source 22 of the head turning mechanism 20 to operate, control the X, Y shaft feeding units 31 and 32 of the feeding mechanism 30 to horizontally move, and control the kettle shaft platform driving source 42 of the kettle shaft platform turning mechanism 40 to operate.

Referring to fig. 10 and 11, in a specific application, the rotary head pattern sewing machine 1 applies a sewing method F to sew a sewn article 60 (as shown in fig. 12), firstly, a data obtaining step S1 is performed, an operator inputs a to-be-sewn pattern representing a shape and a set stitch distance representing a stitch length to the controller 50, the controller 50 forms a sewing path 70 according to a curve of the to-be-sewn pattern, the controller 50 calculates and forms a plurality of sewing points 71 through the curve of the to-be-sewn pattern and the set stitch distance, and the plurality of sewing points 71 are arranged along the sewing path 70 at intervals, so that the position of each sewing point 71 is different, in this embodiment, each sewing point 71 has a coordinate instruction representing the position of the sewing point 71 and a steering instruction representing the rotation amplitude of the head 11, a stitch distance 72 formed between every two stitching points 71 through respective coordinate commands already indicates a distance between the two stitching points 71, wherein the steering command is formed between every two stitching points 71 through respective coordinate commands, whereby the stitching path 70 includes a plurality of stitching points 71, a plurality of stitch distances 72, a plurality of coordinate commands and a plurality of steering commands, however, the input of the desired stitching pattern and the set stitch distance to the controller 50 to form the stitching path 70 is merely for convenience of explanation, that is, an operator may draw and form the desired stitching pattern through an external computer and input the set stitch distance to the external computer of the controller, so that the external computer forms the stitching path 70 through the desired stitching pattern and the set stitch distance, and then the operator may further draw and form a stitch path including a plurality of stitching points 71, The plurality of stitch distances 72, the plurality of coordinate commands, and the plurality of stitching paths 70 of the steering command are directly input to the controller 50.

Referring to fig. 10 and 12, after the controller 50 has the sewing path 70, the controller 50 controls the X, Y shaft feeding units 31, 32 of the feeding mechanism 30 to drive the sewing material 60 to move horizontally according to the coordinate command of the first sewing point 71 of the sewing path 70, so that the sewing material 60 can move along a first direction D1 parallel to the X axis through the X, Y shaft feeding units 31, 32, and further move the sewing material 60 to the left below the needle bar 142a of the needle bar mechanism 14, thereby completing a moving step S2, in this embodiment, the turning command of the first sewing point 71 indicates that the head 11 of the sewing machine body 10 does not need to turn, so that the head turning mechanism 20 does not drive the head 11 to turn before the sewing material 60 moves along the first direction D1, however, the first direction D1 is parallel to the X axis for convenience of description, that is, the first direction D1 may be parallel to the Y axis or oblique to both the X axis and the Y axis.

Referring to fig. 10 and 13A, when the controller 50 executes the moving step S2, the controller 50 simultaneously performs a sewing step S3, when the feeding mechanism 30 drives the sewing object 60 to horizontally move along the first direction D1, the controller 50 controls the needle bar driving source 141a of the needle bar mechanism 14 and the rotating shaft 161a of the swing mechanism 16 to rotate according to the stitch distance 72 between the first sewing point 71 and the second sewing point 71, so that the needle bar 142a of the needle bar mechanism 14 is changed from a parallel state a1 parallel to the Z axis to a first inclined state a2 not parallel to the Z axis, the upper shaft 141b of the needle bar mechanism 14 can drive the needle bar 142a of the needle bar mechanism 14 to be inclined to the sewing object 60 along a direction inclined to the Z axis, and the needle 142b of the needle bar mechanism 14 is inclined to penetrate through the sewing object 60, so that the sewing object 60 forms a through hole (not shown) formed by the needle bar 142b, referring to fig. 13B, after the needle 142B penetrates through the sewing material 60, the controller 50 continues to control the X, Y shaft feeding units 31, 32 of the feeding mechanism 30 to move the sewing material 60 along the first direction D1 according to the coordinate command of one sewing point 71 of the sewing path 70, and the controller 50 continues to control the swing driving source 161 of the swing mechanism 16 to rotate, at this time, the swing shaft 163c2 of the swing mechanism 16 is perpendicular to the first direction D1, so that the swing driving source 161 can drive the needle bar seat 162 of the swing mechanism 16 to swing left and right along the first direction D1 through the swing shaft 163c2, and the needle bar seat 162 simultaneously drives both the needle bar 142a of the needle bar mechanism 14 and the inner presser foot 151 of the inner presser foot mechanism 15 to swing along the first direction D1, and the needle bar 142a is changed from the first inclined state a2 to the parallel state a1 and a second inclined state A3 opposite to the first inclined state a2, when the needle bar 142a is in the second inclined state a3, the upper shaft 141b can drive the needle bar 142a to move away from the sewn object 60 in an inclined manner along a direction inclined to the Z axis, and the needle 142b moves away from the sewn object 60 in an inclined manner, wherein when the needle 142b penetrates through the sewn object 60, the feeding mechanism 30 continuously drives the sewn object 60 to move, and a moving speed of a through hole in the sewn object 60 is approximately close to a moving speed of the sewn object 60, so that the moving sewn object 60 does not generate an excessive lateral force on the needle 142b, and the needle 142b is not bent and deformed even if being affected by the lateral force of the sewn object 60.

Referring to fig. 14, next, the controller 50 simultaneously performs the moving step S2 and the sewing step S3 again, so that the controller 50 controls the X, Y shaft feeding units 31 and 32 of the feeding mechanism 30 to drive the sewing material 60 to move horizontally according to the coordinate command of the second sewing point 71 of the sewing path 70, in this embodiment, the steering command of the second sewing point 71 also indicates that the vehicle head 11 does not need to steer, the swing shaft 163c2 of the swing mechanism 16 is perpendicular to the first direction D1, so that the feeding mechanism 30 still drives the sewing material 60 to move along the first direction D1, the needle 142b of the needle bar mechanism 14 obliquely penetrates through different positions of the sewing material 60, and the controller 50 controls the needle bar seat 162 of the swing mechanism 16 to swing through the stitch distance 72 between the second sewing point 71 and the third sewing point 71, after the needle 142b leaves the sewing material 60, the sewing material 60 can form a stitch 61 parallel to the first direction D1 on the surface, in this embodiment, the swing axis 163c2 of the swing piece 163c is parallel to the Y axis, and when the needle bar seat 162 swings along the first direction D1, the needle 142b and the inner presser foot 151 swing left and right along the X axis.

Referring to fig. 10 and 15, when the controller 50 completes the third to tenth sewing points 71 of the sewing path 70, since the steering commands of the third to tenth sewing points 71 also indicate that the head 11 does not need to be steered, the sewing material 60 moves along the first direction D1 through the feeding mechanism 30, and the sewing material 60 is formed with a plurality of stitches 61 parallel to the first direction D1, and when the controller 50 is to execute the eleventh sewing point 71, since the steering command of the eleventh sewing point 71 indicates that the head 11 of the sewing machine body 10 is to rotate counterclockwise, and then a steering step S4 is started, the controller 50 controls the head driving source 22 of the head steering mechanism 20 to generate the rotational power according to the steering command of the eleventh sewing point 71, so that the head 22 drives the head 11 of the sewing machine body 10 to rotate around the rotational axis L, the needle bar mechanism 14, the inner presser foot mechanism 15 and the swing mechanism 16 are simultaneously rotated with the head 11, so that the swing shaft 163c2 of the swing member 163c is changed from a state perpendicular to the first direction D1 to a state inclined to both the X axis and the Y axis, and further the swing direction of the needle bar base 162 of the swing mechanism 16 is changed, the swing direction of the needle bar base 162 is changed from the first direction D1 to a second direction D2 different from the first direction D1, and the needle bar base 162 can reciprocally swing along the second direction D2, so that the needle 142b of the needle bar mechanism 14 and the inner presser foot 151 of the inner presser foot mechanism 15 swing along directions inclined to both the X axis and the Y axis, and the controller 50 generates a rotation power by the kettle shaft table driving source 42 of the kettle shaft table steering mechanism 40 according to the steering command, so that the kettle shaft table driving source 42 drives the rotation base 17 to rotate, the rotating seat 17 rotates around the rotation axis L relative to the base 13 of the sewing machine body 10, so that the rotating shuttle 18 rotates together with the rotating seat 17 in synchronization with the head 11, however, the second direction D2 is inclined to the X axis and the Y axis only for convenience of description, that is, as long as the second direction D2 is different from the first direction D1.

As shown in fig. 10, in the process of the controller 50 turning to step S4, the controller 50 simultaneously performs a re-moving step S5, the controller 50 controls the feeding mechanism 30 according to the coordinate command of the eleventh sewing point 71 of the sewing path 70, so that the X-axis feeding unit 31 and the Y-axis feeding unit 32 cooperate with each other to change the moving direction of the sewing material 60, and the sewing material 60 moves along the second direction D2 through the feeding mechanism 30, at this time, a re-sewing step S6 is performed, the controller 50 controls the needle bar driving source 141 of the needle bar mechanism 14 to drive the needles 142b of the needle bar mechanism 14 to penetrate through the sewing material 60, and the controller 50 controls the needle bar base 162 of the swing mechanism 16 to swing through the sewing distance 72 between the eleventh sewing point 71 and the twelfth sewing point 71, so that the surface of the sewing material 60 is formed with the stitches 61 parallel to the second direction D2, therefore, after the headstock 11 of the sewing machine body 10 rotates, the swinging direction of the needle bar 142a can be kept consistent with the moving direction of the sewing material 60.

However, in the first preferred embodiment, the needle bar 142a of the needle bar mechanism 14 can swing along the first direction D1 or the second direction D2 and the sewing material 60 can move along the first direction D1 or the second direction D2 through the feeding mechanism 30 only for convenience of illustration, that is, the controller 50 can change the rotation range of the head 11 of the sewing machine body 10 according to the steering commands of different sewing points 71, so that the needle bar 142a of the needle bar mechanism 14 can swing along other directions different from the first and second directions D1 and D2, and the feeding mechanism 30 can also move along other directions different from the first and second directions D1 and D2.

Referring to fig. 16 and 17, in the second preferred embodiment, the difference from the first preferred embodiment is that the needle 142b, the needle hole 172a and the rotary shuttle actuating unit 182 form a double needle pattern symmetrical to the rotation axis L, as shown, the needle bar 142a of the needle bar actuating unit 142 is installed at a needle base 142d adjacent to the needle hole 172a, the needle holder 142d connects two needles 142b spaced apart from each other, and the needle plate 172 has two needle holes 172a formed corresponding to the needles 142b, two rotating shuttle actuating units 182 connected to the lower shaft 181b opposite to the rotating shuttle driving unit 181, the rotating hook mechanism 18 is provided with two rotating hooks 182b for aligning the needle holes 172a, however, the rotating head pattern sewing machine 1 in the second preferred embodiment operates in the same manner as the first preferred embodiment, and thus, in this embodiment, the description will not be repeated.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (5)

1. The utility model provides a rotating head style sewing machine, can carry out the sewing operation to a sewing material which characterized in that contains:

the needle bar mechanism is provided with a needle bar driving source and a needle bar which can move up and down through the needle bar driving source, and the swing mechanism is provided with a needle bar seat connected with the needle bar and a swing driving source which can drive the needle bar seat to swing back and forth;

a headstock steering mechanism which can drive the headstock to rotate by taking the Z axis as an axis so that the needle bar mechanism and the swinging mechanism can rotate together;

the feeding mechanism is provided with an X-axis feeding unit capable of driving the sewn object to move along the X-axis direction and a Y-axis feeding unit capable of driving the sewn object to move along the Y-axis direction; and

the controller is electrically connected with the needle bar mechanism, the swinging mechanism, the headstock steering mechanism and the feeding mechanism;

the controller controls the feeding mechanism to drive the sewing object to move, and simultaneously controls the swinging mechanism to enable the swinging direction of the needle bar to be the same as the moving direction of the sewing object;

the controller can control the feeding mechanism to change the moving direction of the sewing material, meanwhile, the controller controls the headstock steering mechanism to drive the headstock to rotate, the swing mechanism and the headstock rotate together to change the swing direction of the needle bar, and the swing direction of the needle bar after being changed can be consistent with the moving direction of the sewing material after being changed.

2. The rotary head pattern sewing machine according to claim 1, wherein when the controller controls the feeding mechanism to move the sewing material, the controller simultaneously controls the swinging mechanism to swing the needle bar so that a needle attached to the needle bar can move synchronously with the sewing material while passing through the sewing material.

3. The rotary head pattern sewing machine according to claim 1, wherein the swing mechanism is provided with a swing transmission unit between the needle bar base and the swing drive source, the swing transmission unit having a swing arm connected to the swing drive source, a swing member connected to the needle bar base, and a swing link between the swing arm and the swing member, the swing drive source being capable of rotating the swing arm to swing the swing member.

4. The rotary head pattern sewing machine according to claim 1, wherein the head is provided with an inner presser foot mechanism having an inner presser foot driving unit and an inner presser foot disposed in parallel to the needle bar, the inner presser foot driving unit being capable of driving the inner presser foot to move up and down, and the inner presser foot being connected to the needle bar base so that the needle bar and the inner presser foot can synchronously perform reciprocating swing.

5. The rotary head pattern sewing machine according to claim 1, wherein the rotary head pattern sewing machine has a base located below the head and a turret table steering mechanism mounted on the base, the base is mounted with a rotatable base and a rotating shuttle connected to the rotatable base, and the turret table steering mechanism is electrically connected to the controller, and when the head rotates, the controller simultaneously controls the turret table steering mechanism to drive the rotatable base to rotate in the same direction about the Z axis.

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