TWM621105U - 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 type sewing machine

This creation is about a high-head sewing machine, which is used to sew non-planar objects, especially suitable for sewing shoes.

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

In addition, the sewing machine table of the existing conventional technology needs to be tilted down during maintenance. The weight of the machine table makes the process of tilting down and repairing quite difficult.

Therefore, this creation structurally designs a raised structure that can be placed on non-planar items to provide support for non-planar items, and is beneficial to angle adjustment, providing convenience for sewing operations. In addition, the internal transmission structure It also integrates and gathers, and provides a door panel that is convenient for maintenance, which can be repaired quickly by opening the door panel. This is the solution for the creation of a high-head sewing machine.

The high-head sewing machine of this creation at least includes: a housing with an upper housing portion and a lower housing portion. A sewing needle assembly is provided at one end of the upper housing portion, and a sewing needle assembly is provided at one end of the lower housing portion corresponding to the The raised part below the sewing needle assembly has a sewing plane on the top 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. Front feeding tooth and a rear feeding tooth; a first feeding lifting transmission mechanism is installed in the lower shell part and located on the side below the feeding tooth assembly; a second feeding lifting transmission mechanism is installed on the lower shell Inside and on the other side below the feeding tooth assembly, the second feeding lifting transmission mechanism and the first feeding lifting transmission mechanism are used to drive the feeding tooth assembly to move vertically; a front feeding transmission mechanism is attached It is installed in the lower shell for driving the front feeding tooth to act horizontally; a rear feeding transmission mechanism is installed in the lower shell for driving the rear feeding tooth to act horizontally; a yarn guide transmission The mechanism is installed in the lower shell part and the raised part. The yarn guide transmission mechanism is used to drive a yarn guide element to perform up and down twisting. The yarn guide element is fixed on a pivot and is 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 element 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 is used to drive A set block performs horizontal reciprocating yaw motion, the set block is sleeved on the pivot, so that the set block can drive the yarn guide element on the pivot to perform horizontal reciprocating yaw motion; and a The driving device is arranged in the casing for driving the first feeding and lifting transmission mechanism, the second feeding and lifting transmission mechanism, the front feeding transmission mechanism, the rear feeding transmission mechanism, the yarn guide transmission mechanism, and the needle guard transmission The mechanism and the limit transmission mechanism.

In a preferred embodiment, a first actuating arm is fixedly arranged at the lower end of the front feeding tooth, a through groove is opened under the first actuating arm, and a second actuating arm is fixedly arranged at the lower end of the rear feeding tooth, and the first actuating arm The arm and the second actuating arm are attached to the raised part upright, a horizontal first chute runs through the first actuating arm and the side below the second actuating arm, and the other side is a first chute. And a horizontal second chute runs through.

In a preferred embodiment, the first feeding and lifting transmission mechanism has a first sliding block accommodated in the first sliding groove, a first cam is pivoted in the first sliding block, and the second feeding lifting and lowering mechanism The transmission mechanism has a second sliding block accommodated in the second sliding groove, and an eccentric rotating block is pivoted in the second sliding block, and the driving device is used for driving the first cam and the eccentric rotating block to rotate.

In a preferred embodiment, a torsion block is fixed on the pivot, and the torsion block is pivoted to one end of a towing rod, and the other end of the towing rod is pivoted to one end of a rocking block, the rocking block The middle position is the axis to swing, a brake sleeve is pivoted below the other end of the rocking block, the brake sleeve is equipped with a second cam, and the needle guard element is connected with a first rocker arm, A long first brake groove is opened under the first rocker arm. A first pendulum block is placed in the first brake groove. One end of the first pendulum block is fixed to one end of a first brake shaft. The other end of the first brake shaft is fixed to one end of a first brake arm, and the other end of the first brake arm is pivoted above a top block, and a third cam is installed under the top block. A brake shaft system passes through the middle position of the rocking block, so that the rocking block swings with the first brake shaft as the axis, and the sleeve block is connected with a second rocker arm, which is located at Between the first rocker arm and the second actuating arm, and the second rocker arm and the first rocker arm are pivotally connected to each other at an intermediate position, a long second braking groove is opened under the second rocker arm, and the first rocker arm A second pendulum block is placed in the two brake grooves, one end of the second pendulum block is fixed to one end of a second brake shaft, and the other end of the second brake shaft is fixed to 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, the push-pull block is equipped with a fourth cam, the driving device is connected with a first driving shaft, and the first driving shaft can be integrated 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 pivoted 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 pivoted with a second suspension block, the driving device It is used to drive the first pendulum block and the second pendulum block to swing.

In a preferred embodiment, a torsion block is fixed on the pivot, and the torsion block is pivoted to one end of a towing rod, and the other end of the towing rod is pivoted to one end of a rocking block, the rocking block The shaft can swing at the middle position, and a brake sleeve is pivoted below the other end of the rocking 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 element is connected with a first rocker arm, a long first braking groove is opened under the first rocker arm, and a first pendulum block is placed in the first braking groove. One end of the first pendulum block is fixed to one end of a first brake shaft, the other end of the first brake shaft is fixed to one end of a first brake arm, and the other end of the first brake arm is pivoted A third cam is installed above a top block and below the top block, and the driving device is used for driving the third cam to rotate.

In a preferred embodiment, a second rocker arm is connected to the socket block, and the second rocker arm is pivotally connected to the middle position of the first rocker arm, and a long second rocker arm is provided below the second rocker arm. Brake groove, the second brake groove contains a second pendulum block, one end of the second pendulum block is fixed to one end of a second brake shaft, and the other end of the second brake shaft is fixed to a first One end of the two brake arms, the other end of the second brake arm is pivoted on one side of a push-pull block, the push-pull block is equipped with a fourth cam, 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.

The other technical content, features and effects of this creation will be clearly presented in the following detailed description of the preferred embodiment with reference to the drawings.

The terms "top", "bottom", and "side" disclosed in the content of this creation manual are used to describe the terminology of component names to help compare the positional relationship between each plate structure. The direction of the actual product structure will follow the swing The corresponding relationship between the placement angle or the location of the user changes, and the scope of this creation cannot be limited accordingly.

The term "upper" used to describe the position of the structure disclosed in the content of this creation manual refers to any surface position of the structure, not commonly known as the directional "above" or "above". The terms "above" and "below" used to describe the structure position refer to the directionality of the structure position under conventional use.

The terms "fixed", "connected", "installed", "set", "set" or "set" disclosed in the content of this creation manual used to describe the structure combination relationship generally refer to multiple structures It will not easily separate or fall after being assembled. It can be a fixed connection, a detachable connection, or a one-piece 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 intermediate medium. It can be the internal connection of two components, such as: using threads, tenons, fasteners, nails, adhesives, or high-frequency waves, and the "sleeve" "Or "set" means that one of the structures is combined on the outside of the other structure.

The term "pivot" or "pivot" used to describe the combination of structures disclosed in the content of this creation manual refers to a combination of any two of a hinge, a column, a sphere, a hole, or a slot, or multiple structures The matching bearings are assembled with each other, so that multiple structures can still be rotated or slid within a limited range without being easily separated or dropped after being assembled.

Please refer to Figures 1~5. As shown in the figure, this creative high-head sewing machine at least includes a housing 1, a feeding tooth assembly 2, a first feeding and lifting transmission mechanism 3, and a second feeding and lifting transmission mechanism 4 , A front feeding transmission mechanism 5, a rear feeding transmission mechanism 6, a yarn guide transmission mechanism 7, a needle guard transmission mechanism 8, a limit transmission mechanism 9 and a driving device 10.

Referring to Figure 1, the casing 1 has an upper casing portion 11 and a lower casing portion 12. A sewing needle assembly 13 is provided at one end of the upper casing portion 11, and a sewing needle assembly 13 is provided at one end of the lower casing portion 12 corresponding to the vehicle. The raised portion 14 below the needle assembly 13 has a sewing plane 141 on top of the raised portion 14. Please refer to Fig. 6. The raised portion 14 can be used to cover non-planar objects for sewing purposes.

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

Wherein, referring to Figure 5, the first feeding and lifting transmission mechanism 3 is installed in the lower shell portion 12, and the first feeding and lifting transmission mechanism 3 has a first chute 25 received in the first chute 25. The sliding block 31, the first sliding block 31 is pivoted with a first cam 32;

Wherein, referring to Figure 5, the second feeding and lifting transmission mechanism 4 is installed in the lower shell portion 12, and the second feeding and lifting transmission mechanism 4 has a second chute 26 accommodated in the second chute 26. The sliding block 41, the second sliding block 41 is pivoted with an eccentric rotating block 42;

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

Among them, please refer to Figure 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, one end of the first traction block 51 is pivoted Below the first actuating arm 23, a first pendulum block 52 is pivoted at the other end;

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

Wherein, please refer to Figure 4, the rear feeding transmission mechanism 6 is installed in the lower shell 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 pivoted below the second actuating arm 24, and a second pendulum block 62 is pivoted on the other end;

Wherein, please refer to Fig. 8, when the second pendulum block 62 is driven, it also swings horizontally within a predetermined angle range, and the second traction block 61 further follows the swing of the second pendulum block 62. Drive the second actuating arm 24 to perform a horizontal actuation to independently drive the horizontal actuation of the rear feed tooth 22;

Therefore, please refer to Figures 2, 6 to 8, through the first feeding and lifting transmission mechanism 3 and the second feeding and lifting transmission mechanism 4, the front feeding teeth 21 and the rear feeding teeth 22 can be moved vertically together. , And the front feeding transmission mechanism 5 and the rear feeding transmission mechanism 6 respectively make the front feeding teeth 21 and the rear feeding teeth 22 actuate horizontally. After the vertical and horizontal action times and strokes are adjusted in coordination with each other, It can be achieved that the front feeding tooth 21 and the rear feeding tooth 22 perform feeding (sewing material) on the sewing plane 141 (the specific action of the feeding is the sewing technology, 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. The yarn guide transmission mechanism 7 has a corresponding front feeding tooth 21 and the rear feeding tooth 21 The yarn guide element 71 under the tooth 22 is fixed on a pivot 72. A torsion block 73 is also fixed on the pivot 72. The torsion block 73 is pivoted on a towing rod 74. At one end, the other end of the drag lever 74 is pivoted to one end of a rocking block 75, the rocking block 75 can swing at an intermediate position as the axis, and a brake sleeve 76 is pivoted below the other end of the rocking block 75 , The brake sleeve 76 is equipped with a second cam 77;

Among them, please refer to Figures 9-11. When the second cam 77 is driven to make full rotation, the second cam 77 deviates from the axis of rotation and pushes the brake sleeve outward at the position farthest from the axis of rotation. The outer brake sleeve 76 is restrained by the swing block 75 from above, so it can only move along the pushing direction, and the upward displacement of the brake sleeve 76 will drive one end of the swing block 75 together. Swing upward, and the swing causes the other end of the rocking block 75 to drag the drag lever 74 downwards. When the drag lever 74 moves downwards, it drives the torsion block 73 and the pivot 72 to twist downward with the pivot 72 as the axis. , On the contrary, the downward displacement of the brake sleeve 76 will drive one end of the rocking block 75 downward, and the swing causes the other end of the rocking block 75 to drag the drag rod 74 upward, and when the drag rod 74 is upward, it drives The torsion block 73 and the pivot shaft 72 rotate upward with the pivot shaft 72 as the axis. Therefore, the pivot shaft 72 can simultaneously drive the yarn guide element 71 to perform an upward and downward 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, the needle guard transmission mechanism 8 has a corresponding front feeding tooth 21 and the The needle guard 81 under the rear feeding tooth 22 is connected to a first rocker arm 82. A long first braking groove 83 is opened below the first rocker arm 82. The first braking groove 83 contains A first pendulum block 84 is provided. One end of the first pendulum block 84 is fixed to one end of a first brake shaft 85, and the other end of the first brake shaft 85 is fixed to the first brake arm 86 One end, the other end of the first brake arm 86 is pivoted above a top block 87, and a third cam 88 is installed under the top block 87. In this embodiment, the first brake shaft 85 passes through The middle position of the rocking block 75 makes the rocking block 75 swing with the first brake 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, the limit transmission mechanism 9 has a sleeve set on the pivot 72 Block 91, the sleeve 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 arm 82 are pivotally connected to each other. A long second braking groove 93 is opened below the second rocker arm 92. A second pendulum block 94 is placed in the second braking groove 93. The second pendulum One end of the block 94 is fixed to one end of a second brake shaft 95, the other end of the second brake shaft 95 is fixed to 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;

Among them, please refer to Figures 2, 9, 12 to 13, when the third cam 88 rotates fully when it is driven, the third cam 88 deviates from the axis of rotation when it rotates and moves outwards at the position furthest away from the axis of rotation. Pushing the top block 87, and the top block 87 located on the outside is restrained by the first brake arm 86, so it can only move along the pushing direction, and the power of the top block 87 moving upward will drive the first brake One end of the arm 86 swings upward together, and the swing causes the first brake shaft 85 at the other end of the first brake arm 86 and the first pendulum block 84 at the other end of the first brake shaft 85 to move in the same direction. When the first pendulum block 84 rotates slightly, it is convenient for the first braking groove 83 to push under the first rocker arm 82, so that the first rocker arm 82 drives the first rocker arm 82 with the intermediate pivot position as the axis. The needle guard 81 swings horizontally. On the contrary, the power of the downward displacement of the top block 87 will drive one end of the first brake arm 86 downward, so as to successively drive the first brake shaft 85 and the first vertical swing Block 84, the first rocker arm 82 and the needle guard 81 complete the reverse operation, therefore, the first rocker arm 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 axis of rotation during rotation and pushes the push-pull block 97 outward at the position farthest from the axis of rotation, and the push-pull block 97 located outside The block 97 is restrained on one side by the second brake arm 96, so it can only move along the pushing direction, and the power of the push-pull block 97 toward 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 pushed second brake arm 96 and the second pendulum block 94 at the other end of the second brake shaft 95 rotate slightly in the same direction, and the second vertical When the pendulum block 94 rotates slightly, it is convenient for the second braking groove 93 to push under the second rocker arm 92, so that the second rocker arm 92 drives the sleeve block 91 and the pivot axis with the intermediate pivot position as the axis. 72 swings horizontally. On the contrary, 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 and the second vertical The pendulum block 94, the second rocker arm 92, the sleeve block 91 and the pivot shaft 72 complete the reverse action, so the second rocker arm 92 can drive the pivot shaft 72 together with the yarn guide element on the pivot shaft 72 71 performs horizontal reciprocating swing.

Please refer to Figures 1 to 5. The driving device 10 is installed in the casing 1. It can be driven manually or electrically. The driving device 10 drives the first cam 32, the first cam 32 and the The eccentric rotating block 42, the first pendulum block 52, the second pendulum block 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 connected to a first driving shaft 101, a second driving shaft 102, a third driving shaft 103, and a fourth driving shaft 104, respectively. The first driving shaft 101 can be a The first cam 32, the second cam 77, the third cam 88 and the fourth cam 98 are fixed in parallel in series, the second drive shaft 102 is fixed to the eccentric rotating block 42, and the third drive shaft 103 is connected to The first pendulum block 52 is fixedly connected, and the fourth drive shaft 104 is fixedly connected to the second pendulum block 62;

Wherein, please refer to Figures 4 and 8, the second pendulum block 62 is provided with a perforation 63, the fourth drive shaft 104 is fixed in the perforation 63, outside the perforation 63 and on the fourth drive shaft 104 All are provided with a correction mark 64 located at a corresponding position. When the correction mark 64 outside the perforation 63 and the fourth drive shaft 104 is located at the corresponding position, it means that the operation is normal. When the correction mark 64 on the drive shaft 104 is misaligned, it represents an 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 portion 12 and the raised portion 14. Each door panel 15 can be opened or pushed open through a chute to facilitate Maintenance or repair work.

The above-mentioned embodiment disclosure is only a preferred embodiment selection for this creation part, but it is not intended to limit this creation. Anyone familiar with this technical field with ordinary knowledge should understand the aforementioned technical features and embodiments of this creation. And the equal changes or modifications made without departing from the spirit and scope of this creation are still within the scope of this creation, and the scope of patent protection of this creation shall be subject to what is defined in the claims attached to this specification.

1: chassis 10: Drive 101: The first drive shaft 102: second drive shaft 103: Third drive shaft 104: Fourth drive shaft 11: Upper shell 12: Lower shell 13: Sewing needle assembly 14: high rise 141: Sewing plane 15: Door panel 2: Feeding gear assembly 21: Front feeding tooth 22: Rear feeding tooth 23: The first actuating arm 231: Channel 24: The second actuating arm 25: The first chute 26: second chute 3: The first feeding and lifting transmission mechanism 31: The first slider 32: The first cam 4: The second feeding and lifting transmission mechanism 41: second slider 42: eccentric turning block 5: Front feeding transmission mechanism 51: The first traction block 52: The first suspension block 6: Rear feeding transmission mechanism 61: second traction block 62: second suspension block 63: Piercing 64: Calibration mark 7: Yarn guide transmission mechanism 71: Yarn guide element 72: pivot 73: twist block 74: tow bar 75: swing block 76: Brake sleeve 77: second cam 8: Needle guard transmission mechanism 81: Needle guard element 82: The first rocker arm 83: The first brake groove 84: The first pendulum block 85: The first brake shaft 86: First brake arm 87: top block 88: third cam 9: Limit transmission mechanism 91: set block 92: second rocker arm 93: Second brake groove 94: second pendulum block 95: second brake shaft 96: Second brake arm 97: push-pull block 98: Fourth Cam

[Picture 1] is the overall three-dimensional schematic diagram of this creative high-head sewing machine. [Picture 2] is a partial three-dimensional schematic diagram of the internal structure of the high-head sewing machine of this creation. [Picture 3] is a partial three-dimensional schematic diagram of the internal structure of the high-head sewing machine of this creation. [Picture 4] is a partial three-dimensional exploded schematic diagram of the internal structure of the high-head sewing machine of this creation. [Figure 5] is a partial three-dimensional exploded schematic diagram of the internal structure of the high-head sewing machine of this creation. [Pic 6] is the overall three-dimensional schematic diagram of this creative high-head sewing machine. [Picture 7] is a schematic diagram of the internal structure of this creative high-head sewing machine. [Figure 8] is a schematic diagram of the internal structure of this creative high-head sewing machine. [Figure 9] is a partial three-dimensional exploded schematic diagram of the internal structure of the high-head sewing machine of this creation. [Pic 10] is a schematic diagram of the internal structure of this creative high-head sewing machine. [Picture 11] is a schematic diagram of the internal structure of this creative high-head sewing machine. [Pic 12] is a schematic diagram of the internal structure of this creative high-head sewing machine. [Picture 13] is a schematic diagram of the internal structure of this creative high-head sewing machine. [Picture 14] is a three-dimensional schematic diagram of the opening of the door panel of the high-head sewing machine of this creation.

1: chassis

10: Drive

11: Upper shell

12: Lower shell

13: Sewing needle assembly

14: high rise

141: Sewing plane

15: Door panel

Claims (10)

A high-head sewing machine, which contains at least: A machine shell has an upper shell part and a lower shell part. A sewing needle assembly is arranged at one end of the upper shell part, and a raised part corresponding to the lower part of the sewing needle assembly is arranged at one end of the lower shell part. There is a sewing plane on the top surface of the starting part; A feeding tooth assembly is installed in the raised portion, and the feeding tooth assembly has a front feeding tooth and a rear feeding tooth located in the sewing plane; A first feeding and lifting transmission mechanism, which is installed in the lower shell part and located on the lower side of the feeding tooth assembly; A second feeding and lifting transmission mechanism is installed in the lower shell and located on the other side below the feeding tooth assembly. The second feeding and lifting transmission mechanism is used to drive the feeding together with the first feeding and lifting transmission mechanism. The tooth assembly moves vertically; A front feeding transmission mechanism, which is installed in the lower shell part to independently drive the front feeding tooth to move horizontally; A rear feeding transmission mechanism is installed in the lower shell for driving the rear feeding tooth to act horizontally; A yarn guide transmission mechanism is installed in the lower shell part and the raised part, the yarn guide transmission mechanism is used to drive a yarn guide element to rotate up and down, and the yarn guide 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. The needle guard transmission mechanism is used to drive a needle guard element to perform horizontal reciprocating yaw motion. The needle guard element is installed on the front Below the 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 is used to drive a set of blocks to perform horizontal reciprocating yaw motion, and the set block is sleeved on the pivot Up, so that the sleeve block can simultaneously drive the yarn guide element on the pivot to perform horizontal reciprocating yaw movement; and A driving device is arranged on the casing for driving the first feeding and lifting transmission mechanism, the second feeding and lifting transmission mechanism, the front feeding transmission mechanism, the rear feeding transmission mechanism, the yarn guide transmission mechanism, and the needle guard Transmission mechanism, the limit transmission mechanism. For example, the high-head sewing machine of claim 1, wherein the lower end of the front feeding tooth is fixedly provided with a first operating arm, the lower end of the first operating arm is opened with a through slot, and the lower end of the rear feeding tooth is fixedly provided with a second operating arm, the The first actuating arm and the second actuating arm are attached to the raised part upright, and a horizontal first chute runs through the side below the first actuating arm and the second actuating arm, and the other A horizontal second chute runs through the sides. For example, the high-head sewing machine of claim 2, wherein the first feeding and lifting transmission mechanism has a first sliding block accommodated in the first sliding groove, a first cam is pivoted in the first sliding block, and the second The two feeding lifting transmission mechanism has a second sliding block accommodated in the second sliding groove, and an eccentric rotating block is pivoted in the second sliding block, and the driving device is used for driving the first cam and the eccentric rotating block Perform rotation. For example, the high-head sewing machine of claim 3, wherein a torsion block is fixed on the pivot, the torsion block is pivoted to one end of a tow bar, and the other end of the tow bar is pivoted to one end of a swing block, The rocking block can swing at an intermediate position as the axis. A brake sleeve is pivoted below the other end of the rocking block. A second cam is installed in the brake sleeve, and the needle guard is connected with a first A rocker arm, a long first brake groove is opened 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 to a first brake shaft One end, the other end of the first brake shaft is fixed to one end of a first brake arm, the other end of the first brake arm is pivoted above a top block, and a third cam is installed under the top block , The first brake shaft system passes through the middle position of the rocking block, so that the rocking 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 second rocker arm and the first rocker arm are pivotally connected to each other at an intermediate position, and a long second braking groove is opened under the second rocker arm , A second pendulum block is placed in the second brake groove, one end of the second pendulum block is fixed to one end of a second brake shaft, and the other end of the second brake shaft is fixed to a second brake One end of the arm and the other end of the second brake arm are pivoted on one side of a push-pull block, and a fourth cam is installed in the push-pull block. For example, the high-head sewing machine of claim 4, wherein the driving device is connected to a first driving shaft, and the first driving shaft can be connected in series to fix and drive the first cam, the second cam, and the third cam. With that fourth cam. For example, the high-head sewing machine of claim 2, wherein the front feeding transmission mechanism has a first traction block, one end of the first traction block is pivoted below the first operating arm, and the other end is pivoted with a first suspension A 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 provided with a second suspension block, The driving device is used for driving the first pendulum block and the second pendulum block to swing. For example, the high-head sewing machine of claim 1, wherein a torsion block is fixed on the pivot, the torsion block is pivoted to one end of a tow bar, and the other end of the tow bar is pivoted to one end of a swing block, The rocking block can swing at an intermediate position as the axis, and a brake sleeve is pivoted below the other end of the rocking block. A second cam is installed in the brake sleeve, and the driving device is used to drive the second cam Perform rotation. For example, the high-head sewing machine of claim 1, wherein the needle guard element is connected with a first rocker arm, a long first braking groove is opened under the first rocker arm, and a first vertical stop is placed in the first braking groove. A pendulum block, one end of the first pendulum block is fixed to one end of a first brake shaft, the other end of the first brake shaft is fixed to one end of a first brake arm, and the other end of the first brake arm It is pivoted above a top block, and a third cam is installed under the top block, and the driving device is used to drive the third cam to rotate. For example, the high-head sewing machine of claim 8, wherein the socket block is connected with a second rocker arm, and the second rocker arm is pivotally connected to the middle position of the first rocker arm, and a long shape is provided under the second rocker arm. The second brake groove of the second brake groove contains a second pendulum block, one end of the second pendulum block is fixed to one end of a second brake shaft, and the other end of the second brake shaft is fixed At 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, the push-pull block is equipped with a fourth cam, and the driving device is used to drive the fourth cam to rotate . For example, the high-head sewing machine of claim 1, wherein a plurality of door panels are installed on the lower shell part and the raised part.

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