TWI796759B - High post bed sewing machine - Google Patents

Abstract

A high post bed sewing machine at least comprises a casing, and the casing has an upper casing part and a lower casing part. A sewing needle assembly is arranged at one end of the upper casing part, and a raised portion corresponding to the position below the sewing needle assembly is arranged at one end of the lower casing part. A sewing plane is on the top of the raised portion and a non-planar object can be wrapped on the raised portion for sewing purpose.

Description

High Head Sewing Machine

The present invention relates to a high-head type sewing machine, which is a sewing machine for sewing non-planar articles, especially suitable for sewing shoes.

The development of the sewing industry has been quite proficient so far, and the sewing operation of the sewing machine has become more precise, and even a sewing machine table that can sew special accessories has been developed. However, the existing conventional sewing machine platforms are all flat sewing platforms, which are not suitable for sewing non-flat objects (curved surface contours, cover shapes or bag shapes), such as shoes, cloth bags, etc., because the objects have many levels. Or sutures connected at vertical angles are difficult to operate on a flat sewing platform.

In addition, the conventional sewing machine needs to be turned down during maintenance, and the maintenance process is not easy due to the considerable weight of the machine.

Therefore, the present invention structurally designs a raised structure that can be nested with non-planar items to provide support for non-planar items, and is conducive to angle adjustment, providing convenience for sewing operations. In addition, the internal transmission structure It is also integrated and assembled, and a door panel that is convenient for maintenance is provided. It can be repaired quickly only by opening the door panel. This is the solution for the high-head sewing machine of the present invention.

The high-head type sewing machine of the present invention at least includes: a casing, which has an upper casing and a lower casing, a sewing needle assembly is arranged at one end of the upper casing, and a needle assembly corresponding to the lower casing is arranged at one end of the lower casing. The raised part below the sewing needle assembly has a sewing plane on the top surface of the raised part; a feeding tooth assembly is installed in the raised part, and the feeding tooth assembly has a sewing plane located in the sewing plane. A front feeding tooth and a rear feeding tooth; a first feeding lifting transmission mechanism is installed in the lower shell and is located on the lower side of the feeding tooth assembly; a second feeding lifting transmission mechanism is installed in the lower shell The second feeding lifting transmission mechanism is used together with the first feeding lifting transmission mechanism to drive the feeding tooth assembly to move vertically; a front feeding transmission mechanism is installed It is installed in the lower shell to independently drive the front feeding teeth to move horizontally; a rear feeding drive mechanism is installed in the lower shell to drive the rear feeding teeth to move horizontally; a yarn guide drive The mechanism is installed in the lower shell part and the raised part. The yarn-guiding transmission mechanism is used to drive a yarn-guiding element to twist up and down. The yarn-guiding element is fixed on a pivot and installed Below the front feeding tooth and the rear feeding tooth; a needle guard transmission mechanism is installed in the lower shell part and the raised part, and the needle guard transmission mechanism is used to drive a needle guard element to reciprocate horizontally. swing action, the needle guard is installed under the front feeding tooth and the rear feeding tooth; a limit transmission mechanism is installed in the lower shell part and the raised part, and the limit transmission mechanism is used to drive A set of blocks performs horizontal reciprocating yaw movement, the set of blocks is sleeved on the pivot, so that the set of blocks can drive the yarn guide element on the pivot to perform horizontal reciprocating yaw movement; and a The driving device is arranged on the casing to drive the first feeding lifting transmission mechanism, the second feeding lifting transmission mechanism, the front feeding transmission mechanism, the rear feeding transmission mechanism, the yarn guide transmission mechanism, the needle guard transmission mechanism mechanism and the limit transmission mechanism.

In a preferred embodiment, a first actuating arm is fixedly provided at the lower end of the front feeding tooth, and a through slot is provided under the first actuating arm, and a second actuating arm is fixedly provided at the lower end of the rear feeding tooth, and the first actuating arm The arm and the second actuating arm are upright and attached to the raised portion, and a horizontal first chute runs through the side below the first actuating arm and the second actuating arm, and a horizontal first chute runs through the other side. And there is a second horizontal chute running through it.

In a preferred embodiment, the first feeding lifting transmission mechanism has a first slider accommodated in the first chute, a first cam is pivoted inside the first slider, and the second feeding lifting The transmission mechanism has a second sliding block accommodated in the second sliding slot, an eccentric rotating block is pivotally arranged inside the second sliding block, and the driving device is used to drive the first cam and the eccentric rotating block to rotate.

In a preferred embodiment, a torsion block is fixed on the pivot shaft, and the torsion block is pivotally arranged on one end of a drag bar, and the other end of the tow bar is pivotally arranged on one end of a swing block, and the swing block The system can swing at the middle position as the axis center, and a brake sleeve is pivotally installed under the other end of the swing block, a second cam is installed in the brake sleeve, and a first rocker arm is connected to the needle guard. There is a long first brake groove under the first rocker arm, a first pendulum block is placed in the first brake groove, and one end of the first pendulum block is fixed on one end of a first brake shaft. The other end of the first brake shaft is fixed on one end of a first brake arm, and the other end of the first brake arm is pivotally arranged above a top block, and a third cam is installed below the top block. A brake shaft system passes through the middle position of the swing block, so that the swing block swings with the first brake shaft as the axis, and the sleeve block is connected with a second rocker arm, and the second rocker arm is located on the Between the first rocker arm and the second actuating arm, and the middle position of the second rocker arm and the first rocker arm are pivotally connected to each other, and a long second brake groove is opened under the second rocker arm, and the first rocker arm A second pendant block is placed in the two brake grooves, one end of the second pendant block is fixed on one end of a second brake shaft, and the other end of the second brake shaft is fixed on one end of a second brake arm , the other end of the second brake arm is pivoted on one side of a push-pull block, a fourth cam is installed in the push-pull block, and a first drive shaft is connected to the drive device, and the first drive shaft can be combined The first cam, the second cam, the third cam and the fourth cam are fixed and driven in series.

In a preferred embodiment, the front feeding transmission mechanism has a first traction block, one end of the first traction block is pivoted below the first actuating arm, and the other end is pivotally mounted with a first pendulum block, The rear feeding transmission mechanism has a second traction block, one end of the second traction block passes through the through slot and is pivoted below the second actuating arm, and the other end is pivotally mounted with a second pendulum block, the driving device It is used to drive the first pendulum weight and the second pendulum weight to swing.

In a preferred embodiment, a torsion block is fixed on the pivot shaft, and the torsion block is pivotally arranged on one end of a drag bar, and the other end of the tow bar is pivotally arranged on one end of a swing block, and the swing block The system can swing at the middle position as the axis, and a brake sleeve is pivotally arranged under the other end of the swing block. A second cam is installed in the brake sleeve, and the driving device is used to drive the second cam to rotate.

In a preferred embodiment, the needle guard is connected with a first rocker arm, and a long first brake groove is opened under the first rocker arm, and a first pendulum block is placed in the first brake groove. One end of the first pendulum block is fixed on one end of a first brake shaft, the other end of the first brake shaft is fixed on one end of a first brake arm, and the other end of the first brake arm is pivoted. A third cam is arranged above the top block and below the top block, and the driving device is used to drive the third cam to rotate.

In a preferred embodiment, the block is provided with a second rocker arm, and the middle position of the second rocker arm and the first rocker arm is pivotally connected to each other, and a long second rocker arm is provided under the second rocker arm. A brake groove, a second pendulum block is housed in the second brake groove, one end of the second pendulum block is fixed on one end of a second brake shaft, and the other end of the second brake shaft is fixed on a first One end of the second brake arm and the other end of the second brake arm are pivotally arranged on one side of a push-pull block, a fourth cam is installed in the push-pull block, and the driving device is used to drive the fourth cam to rotate.

In a preferred embodiment, a plurality of door panels are installed on the lower shell portion and the raised portion.

Other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings.

The terms "top", "bottom", and "side" used to describe the name of the components disclosed in the content of the specification of the present invention are to assist in comparing the positional relationship between each plate-shaped structure. The direction of the actual product structure will vary with the swing. The corresponding relationship between the angle of release and the position of the user is changed, and the scope of the present invention cannot be limited accordingly.

The term "upper" used to describe the position of the structure disclosed in the content of the present specification refers to any surface position of the structure, not the commonly known "above" or "above" which is directional. The terms "above" and "below" used to describe the position of a structure refer to the directionality of the position of the structure under normal use.

The terms "fixed", "connected", "installed", "sleeved", "sleeved" or "installed" used to describe the relationship between structural combinations disclosed in the description of the present invention generally refer to multiple structures After the combination, it will not be easily separated or dropped. It can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct physical connection. It can also be connected indirectly through an intermediary. It can be the internal connection of two components, for example: using threads, tenons, fasteners, nails, adhesives or any combination of high frequency, and the "sleeved" " or " nesting " means that one of the structures is combined outside the other.

The terms "pivot" or "pivot" disclosed in the description of the present invention are used to describe the structural combination relationship, which refers to the combination of hinges, columns, spheres, holes, and grooves, or multiple structures. The bearings are assembled with each other, so that multiple structures can still rotate or slide freely within a limited range after being combined without being easily separated or dropped.

Please refer to Figures 1 to 5, as shown in the figures, the high-head sewing machine of the present invention at least includes a casing 1, a feeding tooth assembly 2, a first feeding lifting transmission mechanism 3, and a second feeding lifting transmission mechanism 4 , a front feeding transmission mechanism 5, a rear feeding transmission mechanism 6, a yarn guide transmission mechanism 7, a needle protection transmission mechanism 8, a limit transmission mechanism 9 and a driving device 10.

Please refer to Fig. 1, the casing 1 has an upper casing portion 11 and a lower casing portion 12, a sewing needle assembly 13 is arranged at one end of the upper casing portion 11, and a sewing needle assembly 13 corresponding to the sewing machine is arranged at one end of the lower casing portion 12. The raised part 14 below the sewing needle assembly 13 has a sewing plane 141 on the top surface of the raised part 14, please refer to FIG.

Please refer to Figures 2, 4, and 5, the feed tooth assembly 2 is installed in the raised portion 14, and the feed tooth assembly 2 has a front feed tooth in the sewing plane 141 respectively. 21 and a rear feeding tooth 22, the lower end of the front feeding tooth 21 is fixed with a first actuating arm 23, and a through groove 231 is provided below the first actuating arm 23, and a second actuating arm is fixed at the lower end of the rear feeding tooth 22. 24. The first actuating arm 23 and the second actuating arm 24 are set in a flat plate shape and stand upright in the raised portion 14, and the first actuating arm 23 and the second actuating arm 24 are below both It has a corresponding outer contour, so that the outer contours below the first actuating arm 23 and the second actuating arm 24 can match when they are attached together. One side runs through a horizontal first chute 25, and the other side runs through a horizontal second chute 26;

Wherein, please refer to Fig. 5, the first feeding lifting transmission mechanism 3 is installed in the lower shell portion 12, and the first feeding lifting transmission mechanism 3 has a first feeding mechanism 3 accommodated in the first chute 25. A slider 31, the first slider 31 is pivotally provided with a first cam 32;

Wherein, please refer to Fig. 5, the second feeding lifting transmission mechanism 4 is installed in the lower shell portion 12, and the second feeding lifting transmission mechanism 4 has a second lifting transmission mechanism accommodated in the second chute 26. A slider 41, the second slider 41 is pivotally provided with an eccentric rotating block 42;

Wherein, please refer to Fig. 7, when the first cam 32 and the eccentric turning block 42 are driven to make a full rotation (that is, complete 360° rotation), the maximum outer diameter of the first cam 32 and the eccentric turning block 42 is rotating The path of the time will deviate from the rotation axis. Due to the restriction of the first chute 25 and the second chute 26 arranged horizontally, the power of the horizontal direction when the first cam 32 and the eccentric block 42 rotate eccentrically The two can only be displaced horizontally in the first chute 25 and the second chute 26 respectively, while the vertical power drives the first actuating arm 23 and the second actuating arm 24 together. Make a vertical displacement to drive the front feed tooth 21 and the rear feed tooth 22 to move up or down together;

Wherein, please refer to Fig. 4, the front feeding transmission mechanism 5 is installed in the lower shell portion 12, the front feeding transmission mechanism 5 has a first traction block 51, and one end of the first traction block 51 is pivoted Below the first actuating arm 23, the other end is pivotally arranged with a first pendulum block 52;

Wherein, please refer to Fig. 8, when the first pendulum weight 52 is driven to swing horizontally within a predetermined angle range, the first traction piece 51 is further driven by the swing of the first pendulum weight 52. The first actuating arm 23 performs horizontal actuation to independently drive the horizontal actuation of the front feeding tooth 21;

Wherein, please refer to Fig. 4, the rear feeding transmission mechanism 6 is installed in the lower shell portion 12, the rear feeding transmission mechanism 6 has a second traction block 61, and one end of the second traction block 61 passes through the The through slot 231 is pivotally arranged below the second actuating arm 24, and the other end is pivotally arranged with a second pendulum block 62;

Wherein, please refer to Fig. 8, when the second pendulum weight 62 is driven, it also swings horizontally within a predetermined angle range, and the second traction piece 61 further moves along with the swing of the second pendulum weight 62. Drive the second actuating arm 24 to move horizontally, so as to drive the rear feeding tooth 22 to move horizontally;

Therefore, please refer to Figures 2, 6-8, through the first feeding lifting transmission mechanism 3 and the second feeding lifting transmission mechanism 4, the front feeding tooth 21 and the rear feeding tooth 22 can move vertically together , and the front feeding transmission mechanism 5 and the rear feeding transmission mechanism 6 respectively make the front feeding tooth 21 and the rear feeding tooth 22 move horizontally, and after the vertical and horizontal action time and stroke are mutually adjusted, It can achieve the action of allowing the front feed tooth 21 and the rear feed tooth 22 to implement feeding (sewing raw materials) on the sewing plane 141 (the specific action of implementing material feeding belongs to the technology of sewing, so it will not be described in detail) .

Please refer to Figures 2 and 9, the yarn guide transmission mechanism 7 is installed in the lower shell portion 12 and the raised portion 14, and the yarn guide transmission mechanism 7 has a pair corresponding to the front feed tooth 21 and the rear feed tooth The yarn guide element 71 below the tooth 22 is fixed on a pivot 72, and a torsion block 73 is also fixed on the pivot 72, and the torsion block 73 is also pivotally installed on a drag bar 74. One end, the other end of the drag bar 74 is pivotally arranged on one end of a swing block 75, and the swing block 75 can swing at the middle position as the axis, and a brake sleeve 76 is pivotally arranged below the other end of the swing block 75. , the brake sleeve 76 is equipped with a second cam 77;

Wherein, please refer to Figures 9-11, when the second cam 77 is driven to make a full rotation, the second cam 77 deviates from the rotation axis and pushes the brake sleeve outward at the position farthest from the rotation axis. cylinder 76, and the brake sleeve 76 on the outside is restrained by the swing block 75 above, so it can only be displaced along the pushing direction, and the power of the upward displacement of the brake sleeve 76 will drive one end of the swing block 75 together. Swing upwards, and the swing makes the other end of the swinging block 75 drag the drag bar 74 downward, and when the drag bar 74 goes down, it drives the twist block 73 and the pivot 72 to twist downward with the pivot 72 as the axis , On the contrary, the power of the downward displacement of the brake sleeve 76 will drive one end of the swing block 75 downward together, and the swing will make the other end of the swing block 75 drag the drag bar 74 upward, and the drag bar 74 will drive upward when it goes up. The twisting block 73 and the pivot 72 are twisted upward with the pivot 72 as the axis, so the pivot 72 can drive the yarn guiding element 71 to perform an up and down twisting action.

Please refer to Figures 2, 9, and 12, the needle guard transmission mechanism 8 is installed in the lower shell portion 12 and the raised portion 14, and the needle guard transmission mechanism 8 has a pair corresponding to the front feeding tooth 21 and the The needle guard 81 below the rear feeding tooth 22 is connected with a first rocker 82, and a long first brake groove 83 is provided under the first rocker 82. The content of the first brake groove 83 is There is a first pendulum piece 84, one end of the first pendulum piece 84 is fixed on one end of a first brake shaft 85, and the other end of the first brake shaft 85 is fixed on the end of a first brake arm 86. One end, the other end of the first brake arm 86 is pivotally arranged above a top block 87, and a third cam 88 is installed in the bottom of the top block 87. In this embodiment, the first brake shaft 85 passes through The middle position of the swinging block 75 makes the swinging block 75 swing with the first braking shaft 85 as the axis;

Please refer to Figures 2, 9, and 13, the limit transmission mechanism 9 is installed in the lower shell portion 12 and the raised portion 14, and the limit transmission mechanism 9 has a sleeve set on the pivot 72. block 91, the cover block 91 is connected with a second rocker arm 92, the second rocker arm 92 is located between the first rocker arm 82 and the second actuating arm 24, and the second rocker arm 92 and the The middle positions of the first rocker arms 82 are pivotally connected to each other, and a long second brake groove 93 is provided under the second rocker arm 92, and a second pendulum block 94 is housed in the second brake groove 93. One end of the block 94 is fixed on one end of a second brake shaft 95, the other end of the second brake shaft 95 is fixed on one end of a second brake arm 96, and the other end of the second brake arm 96 is pivoted. On one side of a push-pull block 97, a fourth cam 98 is installed in the push-pull block 97;

Wherein, referring to Figs. 2, 9, 12-13, when the third cam 88 is driven to make a full rotation, the third cam 88 deviates from the rotation axis and outwards at the position farthest from the rotation axis. Push the top block 87, and the top block 87 located on the outside is restrained by the first brake arm 86 above, so it can only displace along with the pushing direction, and the power of the upward displacement of the top block 87 will drive the first brake arm. One end of the arm 86 swings upward together, and the swing makes the first brake shaft 85 at the other end of the first brake arm 86 and the first pendulum piece 84 at the other end of the first brake shaft 85 make a slight movement in the same direction. When the first pendulum block 84 rotates slightly, it is convenient for the first brake groove 83 to push the bottom of the first rocker arm 82, so that the first rocker arm 82 drives the first rocker arm 82 with the middle pivot point as the axis. The needle protector 81 swings horizontally, otherwise, the power of the downward displacement of the top block 87 will drive one end of the first braking arm 86 downwards to successively drive the first braking shaft 85 and the first pendulum. Block 84, the first rocker arm 82 and the needle guard 81 complete reverse action, therefore, the first rocker 82 can drive the needle guard 81 to reciprocate horizontally;

Wherein, when the fourth cam 98 is driven to make a full rotation, the fourth cam 98 deviates from the rotation axis and pushes the push-pull block 97 outwards at the position farthest from the rotation axis when the fourth cam 98 is rotated, and the push-pull block 97 located on the outside The block 97 is restrained by the second brake arm 96 on one side, so it can only be displaced along the pushing direction, and the power of the push-pull block 97 towards the displacement of the second brake arm 96 will push one end of the second brake arm 96, The second brake shaft 95 at the other end of the second brake arm 96 and the second pendulum block 94 at the other end of the second brake shaft 95 are rotated slightly in the same direction, and the second pendulum When the pendulum block 94 rotates slightly, it is convenient to push the bottom of the second rocker arm 92 in the second brake groove 93, so that the second rocker arm 92 drives the sleeve block 91 and the pivot with the middle pivot position as the axis. 72 to swing horizontally, otherwise, the power of the push-pull block 97 moving away from the second brake arm 96 will pull back one end of the second brake arm 96 to successively drive the second brake shaft 95, the second vertical The pendulum 94, the second rocker arm 92, the cover block 91 and the pivot 72 complete the reverse action, so the second rocker 92 can drive the pivot 72 together with the yarn guiding element on the pivot 72 71 carries out horizontal reciprocating deflection.

Please refer to Figures 1 to 5, the driving device 10 is arranged on the casing 1, and it can be driven manually or electrically. The driving device 10 drives the first cam 32, the The eccentric rotating block 42, the first pendulum weight 52, the second pendulum weight 62, the second cam 77, the third cam 88 and the fourth cam 98 swing or fully rotate within a predetermined angle range, In this embodiment, the driving device 10 is respectively connected with a first driving shaft 101, a second driving shaft 102, a third driving shaft 103 and a fourth driving shaft 104, and the first driving shaft 101 can be a And fix the first cam 32, the second cam 77, the third cam 88 and the fourth cam 98 in series, the second drive shaft 102 is affixed to the eccentric block 42, the third drive shaft 103 is connected to the The first pendulum block 52 is fixedly connected, and the fourth driving shaft 104 is fixedly connected with the second pendulum block 62;

Wherein, referring to Figs. 4 and 8, a perforation 63 is provided on the second pendulum weight 62, and the fourth drive shaft 104 is fixedly connected in the perforation 63. Outside the perforation 63 and on the fourth drive shaft 104 A calibration mark 64 located at a corresponding position is provided. When the calibration mark 64 outside the perforation 63 and on the fourth drive shaft 104 is located at the corresponding position, it means that the operation is normal. When the calibration mark 64 on the drive shaft 104 is misaligned, it means abnormal operation.

Please refer to Figures 1 and 14. In order to facilitate maintenance, a plurality of door panels 15 can be installed on the lower shell part 12 and the raised part 14, and each of the door panels 15 can be opened or pushed open through a chute to facilitate maintenance or repair work.

The disclosure of the above-mentioned embodiments is only a selection of some preferred embodiments of the present invention, but it is not intended to limit the present invention. Anyone who is familiar with this technical field and has ordinary knowledge, after understanding the aforementioned technical characteristics and embodiments of the present invention, And the equivalent changes or modifications made without departing from the spirit and scope of the present invention still fall within the scope of the present invention, and the scope of patent protection of the present invention must be defined by the appended claims of this specification.

1: Chassis 10: Drive device 101: The first drive shaft 102: Second drive shaft 103: The third drive shaft 104: The fourth drive shaft 11: Upper shell 12: Lower shell 13:Sewing needle assembly 14: high rise 141: Sewing plane 15: door panel 2: Feed tooth assembly 21: Front feed tooth 22: Rear feeding teeth 23: The first boom 231: Through groove 24: Second operating arm 25: The first chute 26: Second chute 3: The first feeding lifting transmission mechanism 31: First slider 32: First Cam 4: The second feeding lifting transmission mechanism 41: Second slider 42: Eccentric turn block 5: Front feeding transmission mechanism 51: The first traction block 52: The first pendulum block 6: Rear feeding transmission mechanism 61: The second traction block 62: The second suspension block 63: perforation 64: Calibration mark 7: Yarn guide transmission mechanism 71: Yarn guide element 72: Pivot 73: Twist block 74: Towing bar 75: Swing block 76: brake sleeve 77:Second cam 8: Needle guard transmission mechanism 81:Needle protector 82: The first rocker arm 83: The first brake groove 84: The first pendulum block 85: The first brake shaft 86: The first brake arm 87: top block 88: Third Cam 9: Limit transmission mechanism 91: set of blocks 92: Second rocker arm 93: Second brake groove 94: the second pendulum block 95: Second brake shaft 96: Second brake arm 97: push and pull block 98: Fourth Cam

[Fig. 1] is the overall three-dimensional schematic diagram of the high head type sewing machine of the present invention. [Fig. 2] is a partial three-dimensional schematic diagram of the internal structure of the high head type sewing machine of the present invention. [Fig. 3] is a partial three-dimensional schematic diagram of the internal structure of the high head type sewing machine of the present invention. [Fig. 4] is a partial three-dimensional exploded schematic diagram of the internal structure of the high head type sewing machine of the present invention. [Fig. 5] is a partial three-dimensional exploded schematic diagram of the internal structure of the high head type sewing machine of the present invention. [Fig. 6] is an overall three-dimensional schematic diagram of the high head type sewing machine of the present invention. [Fig. 7] is a schematic diagram of the internal structure of the high head type sewing machine of the present invention. [Fig. 8] is a schematic diagram of the internal structure of the high head type sewing machine of the present invention. [Fig. 9] is a partial three-dimensional exploded schematic diagram of the internal structure of the high head type sewing machine of the present invention. [Fig. 10] is a schematic diagram of the internal structure of the high head type sewing machine of the present invention. [Fig. 11] is a schematic diagram of the internal structure of the high head type sewing machine of the present invention. [Fig. 12] is a schematic diagram of the internal structure of the high-head type sewing machine of the present invention. [Fig. 13] is a schematic diagram of the internal structure of the high head type sewing machine of the present invention. [Fig. 14] is the overall three-dimensional schematic diagram of the door panel opening of the high-head type sewing machine of the present invention.

1: Chassis 10: Drive device 11: Upper shell 12: Lower shell 13:Sewing needle assembly 14: high rise 141: Sewing plane 15: door panel

Claims (7)

A high-head type sewing machine at least includes: a casing with an upper casing and a lower casing, a sewing needle assembly is arranged at one end of the upper casing, and a sewing needle assembly corresponding to the sewing needle is arranged at one end of the lower casing. The raised part below the assembly has a sewing plane on the top surface of the raised part; a feed tooth assembly is installed in the raised part, and the feeding tooth assembly has a front feeding material positioned in the sewing plane teeth and a rear feeding tooth, the lower end of the front feeding tooth is fixed with a first actuating arm, a through groove is opened under the first actuating arm, and a second actuating arm is fixed at the lower end of the rear feeding tooth, the first actuating arm The second actuating arm is upright and attached to the raised portion, and a horizontal first chute runs through one side below the first actuating arm and the second actuating arm, and a horizontal first chute runs through the other side together. There is a second horizontal chute running through it; a first feeding lifting transmission mechanism is installed in the lower shell part and is located on the side below the feeding tooth assembly, which has a first chute accommodated in the first chute. A slider, the first slider is pivotally provided with a first cam; a second feeding lifting transmission mechanism is installed in the lower shell part and is located on the other side below the feeding tooth assembly, which has an accommodating The second slider in the second chute is pivotally provided with an eccentric block, and the first cam system and the eccentric block are used to drive the first actuating arm and the second actuating arm together. The arm moves vertically; a front feeding transmission mechanism is installed in the lower shell to independently drive the front feeding teeth to move horizontally. It has a first traction block, and one end of the first traction block is pivoted. It is arranged under the first actuating arm, and the other end is pivoted with a first pendulum block; a rear feeding transmission mechanism is installed in the lower shell to independently drive the rear feeding teeth to move horizontally, which has the following characteristics: A second traction block, one end of the second traction block passes through the through slot and is pivotally arranged under the second actuating arm, and a second pendulum block is pivotally arranged at the other end; A yarn-guiding transmission mechanism is installed in the lower shell portion and the raised portion, the yarn-guiding transmission mechanism is used to drive a yarn-guiding element to twist up and down, and the yarn-guiding element is fixed on a pivot , and installed under the front feeding tooth and the rear feeding tooth; a needle guard transmission mechanism is installed in the lower shell part and the raised part, and the needle guard transmission mechanism is used to drive a needle guard element to carry out Horizontal reciprocating deflection action, the needle guard is installed under the front feeding tooth and the rear feeding tooth; a limit transmission mechanism is installed in the lower shell part and the raised part, the limit transmission mechanism It is used to drive a set of blocks to perform horizontal reciprocating deflection. The set of blocks is sleeved on the pivot, so that the set of blocks can drive the yarn guide element on the pivot to perform horizontal reciprocating deflection. action; and a driving device, which is arranged on the casing for driving the first cam, the eccentric block, the first pendulum weight, the second pendulum weight, the yarn guide transmission mechanism, the needle guard transmission mechanism, the limit transmission mechanism. Such as the high-head type sewing machine of claim 1, wherein a torsion block is fixed on the pivot, and the torsion block is pivotally arranged on one end of a drag bar, and the other end of the tow bar is pivotally arranged on one end of a swing block, The oscillating block can swing at the middle position as the axis, and a brake sleeve is pivotally arranged under the other end of the oscillating block. A second cam is installed in the brake sleeve, and a first cam is attached to the needle guard. The rocker arm has a long first brake groove below the first rocker arm, and a first pendulum block is housed in the first brake groove, and one end of the first pendulum block is fixed on a first brake shaft. One end, the other end of the first brake shaft is fixed on one end of a first brake arm, the other end of the first brake arm is pivotally arranged above a top block, and a third cam is installed below the top block. , the first brake shaft system passes through the middle position of the swing block, so that the swing block swings with the first brake shaft as the axis, and the sleeve block is connected with a second rocker arm, the second rocker arm It is located between the first rocker arm and the second actuating arm, and the middle position of the second rocker arm and the first rocker arm is pivotally connected to each other, and a long second brake groove is opened under the second rocker arm , a second pendulum block is placed in the second brake groove, and one end of the second pendant block is fixed on a second brake shaft One end of the second brake shaft, the other end of the second brake shaft is fixed on one end of a second brake arm, and the other end of the second brake arm is pivoted on one side of a push-pull block, and a fourth brake shaft is installed in the push-pull block. cam. Such as the high-head type sewing machine of claim 2, wherein the driving device is connected with a first drive shaft, and the first drive shaft can be fixed in series and drive the first cam, the second cam, and the third cam with that fourth cam. Such as the high-head type sewing machine of claim 1, wherein a torsion block is fixed on the pivot, and the torsion block is pivotally arranged on one end of a drag bar, and the other end of the tow bar is pivotally arranged on one end of a swing block, The oscillating block can swing at the middle position as the axis, and a brake sleeve is pivotally arranged under the other end of the oscillating block. A second cam is installed in the brake sleeve, and the driving device is used to drive the second cam. Make a turn. The high head type sewing machine as in claim 1, wherein the needle guard is connected with a first rocker arm, and a long first brake groove is opened under the first rocker arm, and a first vertical brake groove is placed in the first brake groove. A pendulum block, one end of the first pendulum block is fixed on one end of a first brake shaft, the other end of the first brake shaft is fixed on one end of a first brake arm, and the other end of the first brake arm Then, it is pivotally arranged above a top block, and a third cam is installed below the top block, and the driving device is used to drive the third cam to rotate. A high-head type sewing machine as in claim 5, wherein the sleeve block is connected with a second rocker arm, and the middle position of the second rocker arm and the first rocker arm is pivotally connected to each other, and a long The second brake groove, a second pendulum block is housed in the second brake groove, one end of the second pendulum block is fixed on one end of a second brake shaft, and the other end of the second brake shaft is fixed on At one end of a second brake arm, the other end of the second brake arm is pivotally arranged on one side of a push-pull block, a fourth cam is installed in the push-pull block, and the driving device is used to drive the fourth cam to rotate . The high head type sewing machine as claimed in claim 1, wherein a plurality of door panels are installed on the lower shell part and the raised part.

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