CN214736536U - Buttonhole positioning and adsorbing device and buttonhole sewing machine - Google Patents

Abstract

The utility model provides a keyhole positioning adsorption device and a keyhole machine, relating to the field of clothing manufacturing, wherein the keyhole positioning adsorption device comprises a bottom plate, a first horizontal telescopic driving mechanism, a positioning main plate and a suction fan; the positioning main board is connected above the bottom board through a first horizontal telescopic driving mechanism and is parallel to the bottom board; the air suction channel penetrating through the positioning main board is arranged in the positioning main board, the extending direction of the first horizontal telescopic driving mechanism is the front side, the retracting direction is the rear side, the front end air port of the air suction channel is located on the front end face of the positioning main board, and the suction fan is in sealing connection with the rear end air port of the air suction channel through an air suction pipeline. The buttonholing machine comprises the buttonholing positioning and adsorbing device. The utility model discloses thereby alleviated the buttonhole inefficiency that current buttonhole technique relies on workman's manual positioning to exist completely, workman intensity of labour is tired greatly easily, the position of long-time work manual determination easily takes place the off normal position and leads to the not problem that can not use of button hole that lines are not in the same direction as straight, lock out.

Description

Buttonhole positioning and adsorbing device and buttonhole sewing machine

Technical Field

The utility model belongs to the technical field of the technique of clothing manufacturing and specifically relates to a buttonhole location adsorption equipment and buttonhole maker are related to.

Background

The buttonhole operation is required in the garment, and the sewn buttonholes have a striking decorative function and an indispensable basic shielding function.

In the existing intelligent workshop hanging line keyhole link, the situation that front and back lappets with various widths of different styles are mixed to operate is often encountered, the widths of the front lappets comprise the widths of 2.0cm, 2.5cm, 3.0cm, 3.5cm and the like, in the existing keyhole link, manual positioning is required by workers, specifically, the workers are required to repeatedly move positions according to different widths, screws are unscrewed and screwed down by using a spanner, the widths are determined by using a ruler, the heads and the tails of the fabrics are manually adjusted and supported by the workers so that the fabrics do not shift, and finally, the step of finishing is also dependent on manual material receiving, so that the problems that the existing keyhole technology at least has low keyhole efficiency, high labor intensity and fatigue of the workers, the lines are not straight due to the fact that the positions manually determined by the workers during long-time working are prone to deviation, locked buttonholes cannot be used and the like are caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a buttonhole location adsorption equipment and buttonhole maker to thereby alleviate the buttonhole inefficiency that current buttonhole technique relied on workman's manual positioning to exist completely, workman intensity of labour is tired easily greatly, the position of the manual affirmation of staff easily takes place the off normal position easily under the long-time work and leads to the not usable technical problem of button hole that lines are not in the same direction as straight, lock out.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

in a first aspect, an embodiment of the present invention provides a keyhole positioning and adsorbing device, which includes a bottom plate, a first horizontal telescopic driving mechanism, a positioning main plate, and a suction fan;

the positioning main board is connected above the bottom board through the first horizontal telescopic driving mechanism and is parallel to the bottom board;

an air suction channel penetrating through the positioning main board is arranged inside the positioning main board; the extension direction of the first horizontal telescopic driving mechanism is the front, the retraction direction of the first horizontal telescopic driving mechanism is the rear, the front end air port of the air suction channel is located on the front end face of the positioning main board, and the suction fan is connected with the rear end air port of the air suction channel in a sealing mode through an air suction pipeline.

In an optional embodiment, a clamping groove extending in the left-right direction is formed in the front end face of the positioning main plate, and a front end air opening of the air suction channel is located in the clamping groove.

In an optional embodiment, the front end air opening extends from one end of the slot in the length direction to the other end of the slot in the length direction.

In an optional embodiment, a plurality of partition plates are arranged at intervals at the front end part in the air suction channel, and the front ends of the plurality of partition plates extend into the clamping groove.

In an alternative embodiment, a presser foot avoiding groove is formed in the upper surface of the front end of the positioning main plate.

In an optional embodiment, the first horizontal telescopic driving mechanism comprises a controller, a placket width selection button, a first telescopic driving part and a telescopic rod, one end of the telescopic rod is connected to the first telescopic driving part, and the other end of the telescopic rod is connected to the rear end of the positioning main board;

the front fly width selection button and the first telescopic driving part are electrically connected with the controller, and the controller is configured to control the first telescopic driving part to drive the telescopic length of the telescopic rod according to an instruction sent by the front fly width selection button.

In a second aspect, the embodiment of the present invention further provides a buttonholing machine, which includes the buttonholing positioning and adsorbing device provided by any one of the aforementioned optional embodiments.

In an optional embodiment, the buttonholing machine further comprises an auxiliary pressure lever assembly for fixing two ends of the front middle length direction of the front fly in a working state; under the working state, the conveying direction in the front of the placket is vertical to the stretching direction of the first horizontal stretching driving mechanism, and the conveying direction in the front of the placket under the working state is the left-right direction:

the auxiliary pressure lever assembly comprises a moving plate, a left pressure lever, a right pressure lever and a second horizontal telescopic driving mechanism;

the length direction of the moving plate extends along the left-right direction, and the edge part of one side of the moving plate, which is close to the needle of the buttonholing machine, in the length direction is positioned in front of the needle;

the left pressure lever is mounted at the left end of the moving plate through a first lifting mechanism, and the right pressure lever is mounted at the right end of the moving plate through a second lifting mechanism; the moving plate is connected to the second horizontal telescopic driving mechanism; the second horizontal telescopic driving mechanism is configured to be capable of driving the moving plate to move in the left-right direction.

In an alternative embodiment, a left connecting plate is arranged on the left side of the moving plate, and the first lifting mechanism is mounted on the left connecting plate; the left pressure lever extends along the vertical direction, the top of the left pressure lever is connected to the first lifting mechanism, and the first lifting mechanism is configured to drive the left pressure lever to lift so that the bottom end face of the left pressure lever presses downwards or is away from the upper plate face of the moving plate upwards;

and/or a right side connecting plate is arranged on the right side of the moving plate, and the second lifting mechanism is arranged on the right side connecting plate; the right compression bar comprises a horizontal compression bar, a transmission rod and a rotating shaft which are fixedly connected in sequence; the horizontal pressing rod extends along the front-back direction, one end, far away from the transmission rod, of the rotating shaft is rotatably connected to the right side connecting plate, the transmission rod is connected to the second lifting mechanism, and the second lifting mechanism is configured to be capable of driving the transmission rod to lift so as to drive the horizontal pressing rod to press downwards or to be far away from the upper plate surface of the moving plate upwards.

Where "and/or" means that the preceding structure and the following structure are provided simultaneously or alternatively.

In an alternative embodiment, the buttonholing machine further comprises an auxiliary baffle;

the auxiliary baffle is arranged on a workbench of the buttonholing machine in a mode that the length direction extends along the left-right direction, the auxiliary baffle is positioned behind the moving plate, and a front middle limiting groove is formed between the auxiliary baffle and the rear side surface of the moving plate.

The embodiment of the utility model provides a can realize following beneficial effect:

in a first aspect, an embodiment of the utility model provides a keyhole location adsorption equipment, including bottom plate, the flexible actuating mechanism of first level, location mainboard and suction fan. Specifically, the positioning main board is connected above the bottom board through a first horizontal telescopic driving mechanism and is parallel to the bottom board; an air suction channel which penetrates through the positioning main board is arranged inside the positioning main board; the extension direction of the first horizontal telescopic driving mechanism is used as the front side, the retraction direction of the first horizontal telescopic driving mechanism is used as the rear side, the front end air port of the air suction channel is located on the front end face of the positioning main board, and the suction fan is connected with the rear end air port of the air suction channel in a sealing mode through the air suction pipeline.

The bottom plate can be fixed on the workbench of the buttonholing machine, so that the positioning main plate can extend out to reach the position of the upper surface of the workbench close to the needle of the buttonholing machine or reset and retract under the telescopic driving action of the first horizontal telescopic driving mechanism. During operation, start first horizontal flexible actuating mechanism, make first horizontal flexible actuating mechanism stretch out corresponding length back stop motion forward according to the door front of a garment width that needs, to counterpoint the front end wind gap of the passageway that induced drafts in the mainboard of will fixing a position, with a door front of a garment preceding in length direction one side butt in the front end wind gap, a door front of a garment preceding in length direction one side by with induced draft channel's rear end wind gap sealing line connection's suction fan absorption location, the button hole that the needle that falls to make up this moment is just in time in the door front of a garment width department that needs, when changing the door front of a garment width, first horizontal flexible actuating mechanism does corresponding flexible action.

The embodiment of the utility model provides an easy operation is convenient, is favorable to improving keyhole efficiency, reduces workman intensity of labour, thereby avoids taking place because of the long-time work fatigue of workman leads to the position of the manual definite of workman to take place the problem that the button hole of off normal straight, lock out can not use, and because the suction fan adsorbs in the front of a garment of location in front to can improve the straightness accuracy and the accuracy of advancing of keyhole.

The utility model provides a second aspect still provides a buttonholing machine, the buttonholing location adsorption equipment that provides including aforementioned first aspect, the embodiment of the utility model provides a buttonholing machine can reach all beneficial effects that the buttonholing location adsorption equipment that the first aspect provided can reach.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of a keyhole positioning and adsorbing device provided in an embodiment of the present invention at a viewing angle;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a schematic view of an overall structure of the keyhole positioning and adsorbing device provided in the embodiment of the present invention at another viewing angle;

fig. 4 is a schematic view of an overall structure of a buttonholing machine according to an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion B of FIG. 4;

fig. 6 is a partial structure enlarged view of a portion C in fig. 4.

Icon: 1-a bottom plate; 2-a first horizontal telescopic driving mechanism; 21-a first telescopic drive part; 22-a telescopic rod; 23-a connecting seat; 3, positioning the main board; 301-front end tuyere; 302-rear tuyere; 303-a separator; 31-a card slot; 32-presser foot avoidance slot; 4-a placket width selection button; 5, moving the board; 51-left side web; 52-right side web; 61-left compression bar; 62-right compression bar; 621-horizontal compression bar; 622-transmission rod; 623-a rotating shaft; 71-a first lifting mechanism; 72-a second lifting mechanism; 8-an auxiliary baffle; 81-vertical rib.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "vertical", "horizontal", "inner", "outer", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Example one

Referring to fig. 1 to 3, the keyhole positioning and adsorbing device includes a bottom plate 1, a first horizontal telescopic driving mechanism 2, a positioning main plate 3, and a suction fan (not shown). Specifically, the positioning main board 3 is connected above the bottom board 1 through the first horizontal telescopic driving mechanism 2, and the positioning main board 3 is parallel to the bottom board 1; the inside of location mainboard 3 is equipped with the passageway of induced drafting that link up location mainboard 3 to the direction of stretching out and drawing back of the flexible actuating mechanism 2 of first level is the place ahead, and the direction of retracting back of the flexible actuating mechanism 2 of the first level is the rear, and the front end wind gap 301 of the passageway of induced drafting is located the preceding terminal surface of location mainboard 3, and the suction fan passes through the pipeline of induced drafting and the rear end wind gap 302 sealing connection of the passageway of induced drafting.

The bottom plate 1 can be fixed on a workbench of the buttonholing machine, so that the positioning main plate 3 can extend out to reach the position of the upper surface of the workbench close to a needle of the buttonholing machine or reset and retract under the telescopic driving action of the first horizontal telescopic driving mechanism 2. During operation, start first horizontal flexible actuating mechanism 2, make first horizontal flexible actuating mechanism 2 stretch out corresponding length according to the door front of a garment width that needs and stop the action forward, in order to counterpoint front end wind gap 301 of inhaling the wind passageway in the mainboard 3 of will fixing a position, after counterpointing with the door front of a garment in the ascending side butt of length direction at front end wind gap 301, the door front of a garment in the ascending side of length direction is adsorbed the location by the suction fan of being connected with the rear end wind gap 302 sealing line of the passageway that induced drafts, the button hole that the sewing was just in time fallen down to the needle at the door front of a garment width department that needs this moment, when changing the door front of a garment width, first horizontal flexible actuating mechanism 2 is to corresponding flexible action.

The embodiment is simple and convenient to operate, is beneficial to improving the keyhole efficiency, reduces the labor intensity of workers, avoids the problems that the position manually determined by the workers is deviated due to the long-time work fatigue of the workers, the lines are not straight, and the locked keyhole cannot be used, and can improve the straightness and accuracy of the keyhole due to the suction fan adsorbing and positioning in front of the front fly.

Referring to fig. 2, in an optional implementation manner of this embodiment, it is preferable that a clamping groove 31 extending in the left-right direction is disposed on a front end surface of the positioning main board 3, a front end air opening 301 of the air suction channel is located in the clamping groove 31, by providing the clamping groove 31, when the positioning main board is used, one side edge in the front middle length direction of the front fly is clamped into the clamping groove 31 to enhance the positioning effect, and after the clamping groove 31 clamps the fabric, the fabric can be prevented from being distorted and deviated, so that the straightness and accuracy of the keyhole can be further improved.

With continued reference to fig. 2, it is further preferable that the front-end tuyere 301 extends from one end of the slot 31 in the length direction to the other end of the slot 31 in the length direction, so that the absorption area of the front-end tuyere 301 can be increased, and the front middle of the front fly can be better positioned laterally.

With continued reference to fig. 2, it is further preferable that a plurality of partition plates 303 are disposed at intervals at the front end portion inside the air suction channel, and the front ends of the plurality of partition plates 303 extend into the slot 31, so that the front end air inlet 301 can uniformly suck air along the length direction of the slot 31, thereby preventing the front middle distortion caused by local air suction, preferably, the positioning main board 3 includes a U-shaped cover plate and a bottom plate 1, the partition plates 303 are fixedly or integrally connected to the inner side surface of the U-shaped cover plate or the bottom plate 1, it can also be understood that the partition plates 303 are a protruding structure fixedly or integrally connected to the inner side surface of the U-shaped cover plate or the bottom plate 1, and more preferably, the plurality of partition plates 303 divide the front end air inlet 301 into a plurality of square air suction openings.

With reference to fig. 2, in an optional implementation manner of this embodiment, a presser foot avoiding groove 32 is disposed on the upper surface of the front end of the positioning main board 3, and by providing the presser foot avoiding groove 32, the front end of the positioning main board 3 is not blocked by the presser foot when the positioning main board 3 extends out to reach the position, close to the needle, of the upper surface of the workbench under the telescopic driving action of the horizontal telescopic driving assembly, so that the front end air inlet 301 of the air suction channel in the positioning main board 3 is closer to the needle, thereby further improving the adsorption positioning capability.

Referring to fig. 1 and 3, with reference to fig. 4 and 5, in this embodiment, the first horizontal telescopic driving mechanism 2 includes a controller, a placket width selecting button 4, a first telescopic driving portion 21 and a telescopic rod 22, one end of the telescopic rod 22 is connected to the first telescopic driving portion 21, the other end of the telescopic rod 22 is connected to the rear end of the positioning main board 3, the rear end of the positioning main board 3 may be directly fixed to the end of the telescopic rod 22, or alternatively, one end of the telescopic rod 22 away from the first telescopic driving portion 21 is connected to a connecting seat 23, the rear end of the positioning main board 3 is fixedly connected to the connecting seat 23, and the positioning main board 3 is adjusted to a required height by using the connecting seat 23; the placket width selection button 4 and the first telescopic driving part 21 are both electrically connected with a controller, and the controller is configured to control the first telescopic driving part 21 to drive the telescopic length of the telescopic rod 22 according to an instruction sent by the placket width selection button 4.

In the embodiment, the corresponding front fly width selection button 4 can be started according to the required front fly width, the controller can receive an instruction sent by the front fly width selection button 4 and control the first horizontal telescopic driving mechanism 2 to stretch and contract the corresponding preset length, so that the positioning meets the requirements of various front fly widths, the width is switched more conveniently by workers, and the working efficiency is improved; the placket width selection button 4 includes, but is not limited to, a rotary knob or a push button, and may include, but is not limited to, a 2.0cm width knob, a 2.2cm width knob, a 3.0cm width knob, etc., which may be specifically configured according to specific needs. The first telescopic driving part 21 preferably uses a motor, the motor controls the telescopic motion, the response time is fast, the function of accurately controlling the telescopic speed, the telescopic displacement and the rotating torque during driving can be achieved through connection with the controller, and the precision is higher.

Example two

The present embodiment provides a buttonholing machine including a buttonholing positioning suction device provided in any one of the optional embodiments of the first embodiment.

The buttonholing machine provided by this embodiment can also achieve all the beneficial effects that the buttonholing positioning adsorption device can achieve in the first embodiment, and the specific structure and the achievable effects can be obtained by referring to various optional or preferred embodiments in the first embodiment.

Further, referring to fig. 4 to 6, in an alternative embodiment of this embodiment, the buttonholing machine preferably further includes an auxiliary pressing rod assembly for fixing both ends in the length direction in the front of the fly in a working state. In the working state, the conveying direction in the front of the placket is perpendicular to the telescopic direction of the first horizontal telescopic driving mechanism 2, and the conveying direction in the front of the placket in the working state is the left-right direction: as shown in fig. 4 to 6, the auxiliary pressing lever assembly includes a moving plate 5, a left pressing lever 61, a right pressing lever 62 and a second horizontal telescopic driving mechanism (not shown); the length direction of the moving plate 5 extends along the left-right direction, and the edge part of one side of the moving plate 5 close to the buttonholing machine needle in the length direction is positioned in front of the needle; the left pressure lever 61 is mounted at the left end of the moving plate 5 through a first lifting mechanism 71, and the right pressure lever 62 is mounted at the right end of the moving plate 5 through a second lifting mechanism 72; the moving plate 5 is connected to the second horizontal telescopic driving mechanism; the second horizontal telescopic driving mechanism is arranged to drive the moving plate 5 to move in the left-right direction.

In this embodiment, by arranging the auxiliary pressure lever assembly, when the front middle of the front fly is buttoned, two ends in the length direction of the front middle of the front fly can be fixed, and the front middle of the front fly is continuously pushed under the driving of the second horizontal telescopic driving mechanism along with the buttonholing action, so as to buttonhole each part in the length direction of the front middle of the front fly, and obtain a finished product behind the buttonholing of the front middle of the front fly, thereby avoiding the front middle of the front fly from shifting, and improving the buttonholing quality of the finished clothes.

In an optional implementation manner of this embodiment, it is preferable that: as shown in fig. 4 and 5, a left connecting plate 51 is provided on the left side of the moving plate 5, and a first lifting mechanism 71 is mounted on the left connecting plate 51; the left pressure lever 61 extends along the vertical direction, the top of the left pressure lever 61 is connected to a first lifting mechanism 71, and the first lifting mechanism 71 is configured to be capable of driving the left pressure lever 61 to lift, so that the bottom end surface of the left pressure lever 61 presses downwards or moves upwards away from the front middle of the fly placed on the upper plate surface of the moving plate 5. And/or, as shown in fig. 4 and 6, a right connecting plate 52 is arranged at the right side of the moving plate 5, and a second lifting mechanism 72 is arranged on the right connecting plate 52; the right pressure lever 62 comprises a horizontal pressure lever 621, a transmission rod 622 and a rotating shaft 623 which are fixedly connected in sequence; the horizontal pressing rod 621 extends in the front-back direction, one end of the rotating shaft 623, which is far away from the transmission rod 622, is rotatably connected to the right connecting plate 52, the transmission rod 622 is connected to the second lifting mechanism 72, and the second lifting mechanism 72 is configured to drive the transmission rod 622 to lift so as to drive the horizontal pressing rod 621 to press downwards or to be far away from the front middle part of the placket placed on the upper plate surface of the moving plate 5 upwards. Wherein "and/or" means "and/or" preceding structure is provided simultaneously or alternatively to "and/or" following structure. For example, but not limited to, in the present embodiment, the right presser bar 62 may have the same structure as the left presser bar 61 described above, or the left presser bar 61 may have the same structure as the right presser bar 62 described above, or the like.

In the preferred embodiment, as shown in fig. 4 to 6, the left connecting plate 51 is preferably provided with a through long hole extending in the left-right direction, and the first elevating mechanism 71 is screwed to the left connecting plate 51 after passing through the through long hole of the left connecting plate 51, so that the specific installation position of the first elevating mechanism 71 can be finely adjusted by finely adjusting the position of the first elevating mechanism 71 in the through long hole, thereby improving the accuracy of the pressing position of the left pressing lever 61; in addition to the manner in which the second lifter 72 is fixed after passing through the circular hole in the right connecting plate 52 in the figure, the right connecting plate 52 may be provided with a through long hole in the left connecting plate 51, that is, the through long hole may be provided in the right connecting plate 52, and the second lifter 72 may be bolted to the right connecting plate 52 after passing through the through long hole in the right connecting plate 52, so that the position of the second lifter 72 in the through long hole may be finely adjusted to finely adjust the specific installation position of the second lifter 72, thereby improving the pressing position accuracy of the right presser bar 62.

In addition, in the preferred embodiment, as shown in fig. 4 and 6, the moving plate 5 integrally includes a horizontal plate extending in the left-right direction and a vertical plate extending in the left-right direction, and one side edge of the horizontal plate in the length direction is connected to a top edge of the vertical plate in the length direction, so that the cross section of the moving plate 5 perpendicular to the length direction is in an inverted L shape, and thus, the moving plate 5 is hung on the side portion of the buttonholing machine workbench and can move in the left-right direction.

In this embodiment, the second horizontal telescopic driving mechanism, the first lifting mechanism 71 and the second lifting mechanism 72 may be, but not limited to, a combination structure of a motor and the telescopic rod 22 or a combination structure of a cylinder and the telescopic rod 22, and the second horizontal telescopic driving mechanism, the first lifting mechanism 71 and the second lifting mechanism 72 are preferably connected to a controller and controlled by the controller to operate synchronously with the first horizontal telescopic driving mechanism 2.

In addition, in an optional implementation manner of this embodiment, it is preferable that the buttonholing machine further includes an auxiliary baffle 8; the auxiliary baffle 8 is arranged on the workbench of the buttonholing machine in a manner that the length direction extends along the left-right direction, the auxiliary baffle 8 is positioned at the rear part of the moving plate 5, and a front middle limiting groove is formed between the auxiliary baffle 8 and the rear side surface of the moving plate 5, preferably, as shown in fig. 4 to 6, the auxiliary baffle 8 comprises a horizontal plate extending along the left-right direction, a vertical rib 81 extending along the left-right direction is connected to the horizontal plate, and a front middle limiting groove is formed between the vertical rib 81 and the rear side surface of the moving plate 5.

In the preferred embodiment, the auxiliary baffle 8 is arranged to be matched with the movable plate 5, and meanwhile, under the combined action of the auxiliary baffle and the front end air opening 301 of the air suction channel in the positioning main board 3, the front middle part of the front fly is limited, the front middle part of the front fly is prevented from deviating in the process of pushing in the left and right directions, the straightness of the fabric in the buttonhole locking process is ensured, and the buttonhole locking positions of all parts are accurate, so that the quality of finished clothes is improved.

Finally, it should be noted that: the embodiments in the present description are all described in a progressive manner, each embodiment focuses on the differences from the other embodiments, and the same and similar parts among the embodiments can be referred to each other; the above embodiments in the present specification are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A keyhole positioning adsorption device is characterized by comprising a bottom plate (1), a first horizontal telescopic driving mechanism (2), a positioning main plate (3) and a suction fan;

the positioning main board (3) is connected above the bottom board (1) through the first horizontal telescopic driving mechanism (2), and the positioning main board (3) is parallel to the bottom board (1);

an air suction channel penetrating through the positioning main board (3) is arranged inside the positioning main board (3); use the direction of stretching out of first horizontal flexible actuating mechanism (2) is the place ahead, with the withdrawal direction of first horizontal flexible actuating mechanism (2) is the rear, front end wind gap (301) of the passageway that induced drafts is located the preceding terminal surface of location mainboard (3), the suction fan pass through the pipeline of induced drafting with rear end wind gap (302) sealing connection of the passageway of induced drafting.

2. The keyhole positioning and adsorbing device as claimed in claim 1, wherein the front end face of the positioning main plate (3) is provided with a clamping groove (31) extending in the left-right direction, and a front end air opening (301) of the air suction channel is positioned in the clamping groove (31).

3. The keyhole positioning suction device according to claim 2, wherein the front end tuyere (301) extends from one end in a length direction of the slot (31) to the other end in the length direction of the slot (31).

4. The keyhole positioning and adsorbing device as claimed in claim 3, wherein a plurality of partition plates (303) are arranged at intervals at the front end part of the interior of the air suction channel, and the front ends of the plurality of partition plates (303) extend into the clamping groove (31).

5. The keyhole positioning suction device according to claim 1, wherein a presser foot avoiding groove (32) is provided on an upper surface of a front end of the positioning main plate (3).

6. The keyhole positioning and adsorbing device according to claim 1, wherein the first horizontal telescopic driving mechanism (2) comprises a controller, a placket width selection button (4), a first telescopic driving part (21) and a telescopic rod (22), one end of the telescopic rod (22) is connected to the first telescopic driving part (21), and the other end of the telescopic rod (22) is connected to the rear end of the positioning main board (3);

the placket width selection button (4) and the first telescopic driving part (21) are electrically connected with the controller, and the controller is configured to control the first telescopic driving part (21) to drive the telescopic length of the telescopic rod (22) according to an instruction sent by the placket width selection button (4).

7. A buttonhole machine comprising a buttonhole positioning suction device according to any one of claims 1 to 6.

8. The buttonhole sewing machine of claim 7 further comprising an auxiliary strut assembly for fixing both lengthwise ends of the front fly in an operative condition; in the working state, the conveying direction in the front of the placket is vertical to the stretching direction of the first horizontal stretching driving mechanism (2), and the conveying direction in the front of the placket in the working state is taken as the left and right direction:

the auxiliary pressure lever assembly comprises a moving plate (5), a left pressure lever (61), a right pressure lever (62) and a second horizontal telescopic driving mechanism;

the length direction of the moving plate (5) extends along the left-right direction, and the edge part of one side of the moving plate (5) close to the needle of the buttonholing machine in the length direction is positioned in front of the needle;

the left pressure lever (61) is mounted at the left end of the moving plate (5) through a first lifting mechanism (71), and the right pressure lever (62) is mounted at the right end of the moving plate (5) through a second lifting mechanism (72); the moving plate (5) is connected with the second horizontal telescopic driving mechanism; the second horizontal telescopic driving mechanism is configured to be capable of driving the moving plate (5) to move along the left-right direction.

9. The buttonhole machine according to claim 8,

a left connecting plate (51) is arranged on the left side of the moving plate (5), and the first lifting mechanism (71) is mounted on the left connecting plate (51); the left pressure lever (61) extends along the vertical direction, the top of the left pressure lever (61) is connected to the first lifting mechanism (71), and the first lifting mechanism (71) is configured to be capable of driving the left pressure lever (61) to lift so that the bottom end face of the left pressure lever (61) presses downwards or is away from the upper plate face of the moving plate (5) upwards;

and/or a right connecting plate (52) is arranged on the right side of the moving plate (5), and the second lifting mechanism (72) is installed on the right connecting plate (52); the right pressure lever (62) comprises a horizontal pressure lever (621), a transmission rod (622) and a rotating shaft (623) which are fixedly connected in sequence; the horizontal pressing rod (621) extends along the front-back direction, one end, far away from the transmission rod (622), of the rotating shaft (623) is rotatably connected to the right side connecting plate (52), the transmission rod (622) is connected to the second lifting mechanism (72), and the second lifting mechanism (72) is configured to be capable of driving the transmission rod (622) to lift so as to drive the horizontal pressing rod (621) to press downwards or to be far away from the upper plate surface of the moving plate (5) upwards.

10. A buttonhole machine according to claim 8 or 9, characterised in that it further comprises an auxiliary blind (8);

the auxiliary baffle (8) is arranged on a workbench of the buttonholing machine in a mode that the length direction extends along the left-right direction, the auxiliary baffle (8) is positioned behind the moving plate (5), and a front middle limiting groove is formed between the auxiliary baffle (8) and the rear side surface of the moving plate (5).

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