CN219603873U - Template feeding adjusting mechanism and sewing machine - Google Patents

Abstract

The utility model provides a template feeding adjusting mechanism and a sewing machine, wherein the template feeding adjusting mechanism comprises: a base; a plurality of first slipway modules arranged on the base at intervals along the second direction, wherein each first slipway module comprises a first guide rail extending along the first direction and a first sliding block arranged on the first guide rail; the second sliding table module comprises a second guide rail extending along a second direction and a second sliding block arranged on the second guide rail; the connecting shafts extend along the second direction and are in driving connection with the first sliding blocks, the connecting shafts are rotatably arranged, and two ends of each connecting shaft are respectively arranged on the two connecting shaft mounting parts; each first sliding table module is fixed on the base through a plurality of limiting assemblies, and each limiting assembly comprises a pressing plate and a limiting pin which are respectively arranged on two opposite sides of the corresponding first sliding table module and are connected with the base; the template feeding adjusting mechanism solves the problems that in the prior art, the structure of a template feeding adjusting mechanism of a sewing machine is complex, the assembling steps are complex, and after-sales maintenance is not facilitated.

Description

Template feeding adjusting mechanism and sewing machine

Technical Field

The utility model relates to the technical field of sewing machines, in particular to a template feeding adjusting mechanism and a sewing machine.

Background

A sewing machine is a machine that interweaves or sews one or more layers of stitching material by forming one or more stitches on the stitching material with one or more stitching threads.

The sewing machine can sew fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastics, paper and the like, the sewn stitch is neat, beautiful, flat and firm, the sewing speed is high, the use is simple and convenient, and the artistic forms such as hand-push embroidery computer embroidery and the like are derived from the stitch.

At present, the template feeding adjusting mechanism of the sewing machine in the prior art has complex structure and complex assembly steps, and is not beneficial to after-sales maintenance.

Disclosure of Invention

The utility model mainly aims to provide a template feeding adjusting mechanism and a sewing machine, which are used for solving the problems that the template feeding adjusting mechanism of the sewing machine in the prior art is complex in structure, complex in assembly steps and unfavorable for after-sales maintenance.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a die plate feeding adjustment mechanism comprising: a base; the first sliding table modules comprise first guide rails extending along a first direction and first sliding blocks movably arranged on the first guide rails, and the first sliding table modules are arranged on the base at intervals along a second direction; the second sliding table module comprises a second guide rail extending along a second direction and a second sliding block movably arranged on the second guide rail; the connecting shafts extend along the second direction and are in driving connection with the first sliding blocks of each first sliding table module, the connecting shafts are rotatably arranged, and two ends of each connecting shaft are respectively arranged on two connecting shaft installation parts positioned on two opposite sides of the base; each first sliding table module is fixed on the base through a plurality of limiting assemblies, each limiting assembly comprises a pressing plate and limiting pins which are arranged on two opposite sides of the corresponding first sliding table module at intervals along the second direction, the pressing plate is connected with the base through a fastener, and part of each limiting pin is inserted on the base; the first direction and the second direction are perpendicular to each other and are parallel to the base.

Further, the compacting plate comprises a first plate body and a second plate body which are connected, the first plate body is parallel to the base, the second plate body is perpendicular to the base, a first through hole for a fastener to pass through is formed in the first plate body, a first threaded hole for being in threaded connection with the fastener is formed in the base, and one end of the fastener passes through the first through hole and then is in threaded connection with the first threaded hole.

Further, the template pay-off adjustment mechanism still includes a plurality of first belt drive mechanism, and a plurality of first belt drive mechanisms set up with a plurality of first slip table modules one-to-one, and each first belt drive mechanism all includes: the first driving belt pulley is arranged at the first end of the corresponding first guide rail and sleeved on the connecting shaft; the first driven belt wheels are arranged at the second ends of the corresponding first guide rails; the first driving belt is sleeved outside the first driving belt wheel and the first driven belt wheel, and the first driving belt is connected with the corresponding first sliding block.

Further, the template feeding adjusting mechanism further comprises a driving mechanism, wherein the driving mechanism is arranged on one side of the plurality of first sliding table modules and is in driving connection with the connecting shaft so as to drive the connecting shaft to rotate.

Further, the die plate feeding adjusting mechanism further comprises a second belt transmission mechanism, and the second belt transmission mechanism comprises: the second driving belt pulley is arranged on one side of the connecting shaft, and the driving mechanism is in driving connection with the second driving belt pulley; the second driven belt pulley is sleeved on the connecting shaft; the second driving belt is sleeved outside the second driving belt pulley and the second driven belt pulley.

Further, the driving mechanism comprises a motor and a motor mounting seat, the motor mounting seat is arranged on the base, and the motor is arranged on the motor mounting seat.

Further, the die plate feeding adjusting mechanism comprises a tensioning force adjusting mechanism, and the tensioning force adjusting mechanism comprises: the fixed seat is fixed on the base; the base is provided with a second through hole which extends along the first direction and is used for allowing the threaded end of the adjusting screw to pass through, the threaded end of the adjusting screw passes through the second through hole and then is connected with the motor mounting seat, and the adjusting screw is movably arranged in the second through hole and is used for adjusting the position of the motor mounting seat in the first direction; the adjusting nut is in threaded connection with the adjusting screw and is positioned between the nut end of the adjusting screw and the fixed seat so as to fix the relative position between the fixed seat and the adjusting screw after the adjusting action is completed.

Further, the driving mechanism comprises a connecting pin, a third through hole and a fourth through hole which are communicated are arranged on the motor mounting seat, the third through hole extends along a first direction for inserting a threaded end of the adjusting screw, and the fourth through hole extends along a third direction for inserting the connecting pin; the connecting pin is provided with a second threaded hole which is used for being in threaded connection with the threaded end of the adjusting screw, and the threaded end of the adjusting screw passes through the third through hole and is in threaded connection with the second threaded hole; wherein the third direction is perpendicular to the base.

Further, the first driving belt pulley is connected with the connecting shaft through a set screw; the connecting shaft comprises a straight line shaft section, wherein a plurality of straight lines are arranged on the peripheral surface of the straight line shaft section, and the straight lines are sequentially arranged at intervals around the rotating axis of the connecting shaft; the first driving belt pulley is sleeved on the straight line shaft section, a fifth through hole for a set screw to pass through is formed in the first driving belt pulley, and one end of the set screw passes through the fifth through hole and then abuts against the straight line shaft section.

According to another aspect of the present utility model, there is provided a sewing machine including the above-described template feeding adjusting mechanism.

By applying the technical scheme of the utility model, the template feeding adjusting mechanism comprises: a base; the first sliding table modules comprise first guide rails extending along a first direction and first sliding blocks movably arranged on the first guide rails, and the first sliding table modules are arranged on the base at intervals along a second direction; the second sliding table module comprises a second guide rail extending along a second direction and a second sliding block movably arranged on the second guide rail; the connecting shafts extend along the second direction and are in driving connection with the first sliding blocks of each first sliding table module, the connecting shafts are rotatably arranged, and two ends of each connecting shaft are respectively arranged on two connecting shaft installation parts positioned on two opposite sides of the base; each first sliding table module is fixed on the base through a plurality of limiting assemblies, each limiting assembly comprises a pressing plate and limiting pins which are arranged on two opposite sides of the corresponding first sliding table module at intervals along the second direction, the pressing plate is connected with the base through a fastener, and part of each limiting pin is inserted on the base; the first direction and the second direction are perpendicular to each other and are parallel to the base. Therefore, the template feeding adjusting mechanism is simple in structure, convenient and quick to assemble, beneficial to after-sales maintenance and capable of solving the problems that the structure of the template feeding adjusting mechanism of the sewing machine in the prior art is complex, the assembling steps are complex and the after-sales maintenance is not beneficial.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows a schematic structural view of an embodiment of a die plate feed adjusting mechanism according to the present utility model when the second slide table module is not included;

FIG. 2 is a schematic view showing a structure of the die plate feeding adjustment mechanism shown in FIG. 1 when the die plate feeding adjustment mechanism includes a second slipway module and does not include a base;

FIG. 3 is a schematic view showing a structure of the die plate feeding adjustment mechanism shown in FIG. 1 when the die plate feeding adjustment mechanism does not include the second slipway module and does not include the base;

FIG. 4 is a schematic view showing the construction of a base of the die plate feed adjustment mechanism shown in FIG. 1;

fig. 5 shows a partial enlarged view of the die plate feed adjustment mechanism shown in fig. 1 at a.

Wherein the above figures include the following reference numerals:

1. a base; 101. a first threaded hole; 102. limiting pin holes;

2. a tension force adjusting mechanism; 21. an adjusting screw; 22. a fixing seat; 23. an adjusting nut;

3. a first slider; 4. a mounting base;

5. a driving mechanism; 51. a motor; 52. a motor mounting seat; 53. a connecting pin; 54. a bearing;

6. a second belt drive mechanism; 61. a second driving pulley; 62. a second driven pulley; 63. a second belt;

7. a limit component; 71. a compacting plate; 72. a limiting pin;

8. a first belt drive mechanism; 81. a first driving pulley; 82. a first driven pulley;

9. a connecting shaft; 91. a straight line shaft section;

10. a second guide rail; 11. a first guide rail.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1 to 5, the present utility model provides a die plate feeding adjusting mechanism, comprising: a base 1; a plurality of first slide table modules, each of which includes a first guide rail 11 extending in a first direction and a first slider 3 movably disposed on the first guide rail 11, the plurality of first slide table modules being disposed on the base 1 at intervals in a second direction; the second sliding table module comprises a second guide rail 10 extending along a second direction and a second sliding block movably arranged on the second guide rail 10; the connecting shafts 9 extend along the second direction and are in driving connection with the first sliding blocks 3 of the first sliding table modules, the connecting shafts 9 are rotatably arranged, and two ends of each connecting shaft 9 are respectively arranged on two connecting shaft installation parts positioned on two opposite sides of the base 1; each first sliding table module is fixed on the base 1 through a plurality of limiting assemblies 7, each limiting assembly 7 comprises a pressing plate 71 and limiting pins 72 which are arranged on two opposite sides of the corresponding first sliding table module at intervals along the second direction, the pressing plate 71 is connected with the base 1 through a fastener, and part of each limiting pin 72 is inserted on the base 1; wherein the first direction and the second direction are perpendicular to each other and are parallel to the base 1. Therefore, the template feeding adjusting mechanism is simple in structure, convenient and quick to assemble, beneficial to after-sales maintenance and capable of solving the problems that the structure of the template feeding adjusting mechanism of the sewing machine in the prior art is complex, the assembling steps are complex and the after-sales maintenance is not beneficial.

As shown in fig. 1 to 4, the compression plate 71 includes a first plate body and a second plate body which are connected, the first plate body is parallel to the base 1, the second plate body is perpendicular to the base 1, a first through hole for a fastener to pass through is formed in the first plate body, a first threaded hole 101 for threaded connection with the fastener is formed in the base 1, and one end of the fastener passes through the first through hole and then is in threaded connection with the first threaded hole 101.

As shown in fig. 1 to 4, a limit pin hole 102 for being in plug-in fit with the limit pin 72 is provided on the base 1, and a portion of the limit pin 72 is inserted into the limit pin hole 102.

As shown in fig. 1 to 3, each first slide module includes a mount 4 provided on the first slider 3 for connection with the second rail 10.

As shown in fig. 1 to 3, the die plate feeding adjusting mechanism further includes a plurality of first belt driving mechanisms 8, the plurality of first belt driving mechanisms 8 are disposed in one-to-one correspondence with the plurality of first slide table modules, and each of the first belt driving mechanisms 8 includes: the first driving belt pulley 81 is arranged at the first end of the corresponding first guide rail 11, and the first driving belt pulley 81 is sleeved on the connecting shaft 9; a first driven pulley 82, the first driven pulley 82 being provided at a second end of the corresponding first guide rail 11; the first driving belt is sleeved outside the first driving belt pulley 81 and the first driven belt pulley 82, and the first driving belt is connected with the corresponding first sliding block 3.

As shown in fig. 1 to 3, the die plate feeding adjusting mechanism further includes a driving mechanism 5, where the driving mechanism 5 is disposed on one side of the plurality of first sliding table modules and is in driving connection with the connecting shaft 9, so as to drive the connecting shaft 9 to rotate.

As shown in fig. 1 to 3, the die plate feeding adjustment mechanism further includes a second belt transmission mechanism 6, and the second belt transmission mechanism 6 includes: a second driving pulley 61, the second driving pulley 61 being provided on one side of the connecting shaft 9, the driving mechanism 5 being drivingly connected to the second driving pulley 61; the second driven belt pulley 62, the second driven belt pulley 62 is set up on the connecting axle 9; the second driving belt 63, the second driving belt 63 is sleeved outside the second driving pulley 61 and the second driven pulley 62.

As shown in fig. 2 and 3, the driving mechanism 5 includes a motor 51 and a motor mount 52, the motor mount 52 is provided on the base 1, and the motor 51 is mounted on the motor mount 52.

As shown in fig. 3, the body of the motor 51 is mounted on the motor mounting seat 52 and is located at one side of the motor mounting seat 52, the second driving pulley 61 is sleeved on the rotating shaft of the motor 51, the driving mechanism 5 comprises a bearing 54, the free end of the rotating shaft passes through the second driving pulley 61 and is then inserted into the inner ring of the bearing 54, and the outer ring of the bearing 54 is mounted on the motor mounting seat 52 and is located at the other side of the motor mounting seat 52.

As shown in fig. 1 to 3, the die plate feeding adjusting mechanism includes a tension adjusting mechanism 2, and the tension adjusting mechanism 2 includes: the fixed seat 22, the fixed seat 22 is fixed on the base 1; the adjusting screw 21 is provided with a second through hole which extends along the first direction and is used for allowing the threaded end of the adjusting screw 21 to pass through, the threaded end of the adjusting screw 21 passes through the second through hole and then is connected with the motor mounting seat 52, and the adjusting screw 21 is movably arranged in the second through hole and is used for adjusting the position of the motor mounting seat 52 in the first direction so as to control the tension of the second transmission belt 63; the adjusting nut 23, the adjusting nut 23 is in threaded connection with the adjusting screw 21 and is located between the nut end of the adjusting screw 21 and the fixing base 22, so as to fix the relative position between the fixing base 22 and the adjusting screw 21 after the adjusting action is completed.

As shown in fig. 1 to 3, the driving mechanism 5 includes a connecting pin 53, a third through hole and a fourth through hole are provided on the motor mount 52, which are communicated, the third through hole extends in a first direction for insertion of the threaded end of the adjusting screw 21, and the fourth through hole extends in a third direction for insertion of the connecting pin 53; the connecting pin 53 is provided with a second threaded hole for being in threaded connection with the threaded end of the adjusting screw 21, and the threaded end of the adjusting screw 21 passes through the third through hole and is in threaded connection with the second threaded hole; wherein the third direction is perpendicular to the base 1.

As shown in fig. 1 and 5, the first driving pulley 81 and the connecting shaft 9 are connected by a set screw; the connecting shaft 9 comprises a straight line shaft section 91, wherein a plurality of straight lines are arranged on the outer peripheral surface of the straight line shaft section 91, and the straight lines are sequentially arranged at intervals around the rotation axis of the connecting shaft 9; the first driving pulley 81 is sleeved on the straight-line shaft section 91, a fifth through hole for a set screw to pass through is formed in the first driving pulley 81, one end of the set screw passes through the fifth through hole and then abuts against the straight-line shaft section 91, and after the position of the first driving pulley 81 on the connecting shaft 9 is adjusted, the first driving pulley 81 is connected on the connecting shaft 9 through the set screw.

The utility model also provides a sewing machine, which comprises the template feeding adjusting mechanism.

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

the template feeding adjusting mechanism of the utility model comprises: a base 1; a plurality of first slide table modules, each of which includes a first guide rail 11 extending in a first direction and a first slider 3 movably disposed on the first guide rail 11, the plurality of first slide table modules being disposed on the base 1 at intervals in a second direction; the second sliding table module comprises a second guide rail 10 extending along a second direction and a second sliding block movably arranged on the second guide rail 10; the connecting shafts 9 extend along the second direction and are in driving connection with the first sliding blocks 3 of the first sliding table modules, the connecting shafts 9 are rotatably arranged, and two ends of each connecting shaft 9 are respectively arranged on two connecting shaft installation parts positioned on two opposite sides of the base 1; each first sliding table module is fixed on the base 1 through a plurality of limiting assemblies 7, each limiting assembly 7 comprises a pressing plate 71 and limiting pins 72 which are arranged on two opposite sides of the corresponding first sliding table module at intervals along the second direction, the pressing plate 71 is connected with the base 1 through a fastener, and part of each limiting pin 72 is inserted on the base 1; wherein the first direction and the second direction are perpendicular to each other and are parallel to the base 1. Therefore, the template feeding adjusting mechanism is simple in structure, convenient and quick to assemble, beneficial to after-sales maintenance and capable of solving the problems that the structure of the template feeding adjusting mechanism of the sewing machine in the prior art is complex, the assembling steps are complex and the after-sales maintenance is not beneficial.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A die plate feed adjustment mechanism, comprising:

a base (1);

the first sliding table modules comprise first guide rails (11) extending along a first direction and first sliding blocks (3) movably arranged on the first guide rails (11), and the first sliding table modules are arranged on the base (1) at intervals along a second direction;

the second sliding table module comprises a second guide rail (10) extending along a second direction and a second sliding block movably arranged on the second guide rail (10);

the connecting shafts (9) extend along the second direction and are in driving connection with the first sliding blocks (3) of the first sliding table modules, the connecting shafts (9) are rotatably arranged, and two ends of each connecting shaft (9) are respectively arranged on two connecting shaft installation parts positioned on two opposite sides of the base (1);

each first sliding table module is fixed on the base (1) through a plurality of limiting assemblies (7), each limiting assembly (7) comprises a pressing plate (71) and limiting pins (72) which are arranged on two opposite sides of the corresponding first sliding table module at intervals along a second direction, the pressing plate (71) is connected with the base (1) through a fastener, and part of each limiting pin (72) is inserted on the base (1);

wherein the first direction and the second direction are perpendicular to each other and are both parallel to the base (1).

2. The die plate feeding and adjusting mechanism according to claim 1, wherein the pressing plate (71) comprises a first plate body and a second plate body which are connected, the first plate body is parallel to the base (1), the second plate body is perpendicular to the base (1), a first through hole for the fastener to pass through is formed in the first plate body, a first threaded hole (101) for being in threaded connection with the fastener is formed in the base (1), and one end of the fastener passes through the first through hole and is in threaded connection with the first threaded hole (101).

3. The die plate feeding adjustment mechanism according to claim 2, further comprising a plurality of first belt transmission mechanisms (8), the plurality of first belt transmission mechanisms (8) being provided in one-to-one correspondence with the plurality of first slide table modules, each of the first belt transmission mechanisms (8) comprising:

the first driving belt wheel (81), the first driving belt wheel (81) is arranged at the first end of the corresponding first guide rail (11), and the first driving belt wheel (81) is sleeved on the connecting shaft (9);

-a first driven pulley (82), said first driven pulley (82) being arranged at a second end of the respective first guide rail (11);

the first driving belt is sleeved outside the first driving belt wheel (81) and the first driven belt wheel (82), and the first driving belt is connected with the corresponding first sliding block (3).

4. A die plate feeding adjusting mechanism according to claim 3, further comprising a driving mechanism (5), wherein the driving mechanism (5) is disposed on one side of the plurality of first slipway modules and is in driving connection with the connecting shaft (9) to drive the connecting shaft (9) to rotate.

5. The die plate feed adjustment mechanism of claim 4, further comprising a second belt drive mechanism (6), the second belt drive mechanism (6) comprising:

a second driving pulley (61), wherein the second driving pulley (61) is arranged at one side of the connecting shaft (9), and the driving mechanism (5) is in driving connection with the second driving pulley (61);

the second driven belt wheel (62), the said second driven belt wheel (62) is set up on said connecting axle (9);

and the second driving belt (63) is sleeved outside the second driving belt wheel (61) and the second driven belt wheel (62).

6. The die plate feeding adjustment mechanism according to claim 5, wherein the driving mechanism (5) comprises a motor (51) and a motor mount (52), the motor mount (52) is provided on the base (1), and the motor (51) is mounted on the motor mount (52).

7. The die plate feed adjustment mechanism of claim 6, characterized in that the die plate feed adjustment mechanism comprises a tension adjustment mechanism (2), the tension adjustment mechanism (2) comprising:

the fixed seat (22), the fixed seat (22) is fixed on the base (1);

the base (1) is provided with a second through hole which extends along the first direction and is used for allowing a threaded end of the adjusting screw (21) to pass through, the threaded end of the adjusting screw (21) is connected with the motor mounting seat (52) after passing through the second through hole, and the adjusting screw (21) is movably arranged in the second through hole and is used for adjusting the position of the motor mounting seat (52) in the first direction;

the adjusting nut (23) is in threaded connection with the adjusting screw (21) and is positioned between the nut end of the adjusting screw (21) and the fixing seat (22) so as to fix the relative position between the fixing seat (22) and the adjusting screw (21) after the adjusting action is completed.

8. The die plate feed adjusting mechanism according to claim 7, wherein,

the driving mechanism (5) comprises a connecting pin (53), a third through hole and a fourth through hole which are communicated are arranged on the motor mounting seat (52), the third through hole extends along the first direction and is used for inserting the threaded end of the adjusting screw (21), and the fourth through hole extends along the third direction and is used for inserting the connecting pin (53);

the connecting pin (53) is provided with a second threaded hole for being in threaded connection with the threaded end of the adjusting screw (21), and the threaded end of the adjusting screw (21) passes through the third through hole and is in threaded connection with the second threaded hole;

wherein the third direction is perpendicular to the base (1).

9. The die plate feeding adjusting mechanism according to claim 8, wherein the first driving pulley (81) and the connecting shaft (9) are connected through a set screw;

the connecting shaft (9) comprises a straight line shaft section (91), wherein a plurality of straight lines are arranged on the outer peripheral surface of the straight line shaft section (91), and the straight lines are sequentially arranged at intervals around the rotating axis of the connecting shaft (9);

the first driving belt pulley (81) is sleeved on the straight-line shaft section (91), a fifth through hole for the set screw to pass through is formed in the first driving belt pulley (81), and one end of the set screw passes through the fifth through hole and then abuts against the straight-line shaft section (91).

10. A sewing machine comprising the stencil feed adjustment mechanism of any of claims 1 to 9.