CN212771342U

CN212771342U - Thread cutting device of lower hem machine

Info

Publication number: CN212771342U
Application number: CN202021459527.8U
Authority: CN
Inventors: 颜彦
Original assignee: Xiamen Pinda Industry And Trade Co ltd
Current assignee: Xiamen Pinda Industry And Trade Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-03-23
Anticipated expiration: 2030-07-22

Abstract

The utility model discloses a tangent line device of lower hem machine, including the stationary knife, move sword and mounting panel, the stationary knife is fixed in on the mounting panel and be provided with third cutting edge structure on the stationary knife, move the sword and include the connecting axle, first portion and the second portion of snatching, be provided with the connecting hole of two at least parallels and slope on the connecting axle, move the sword and be fixed in on the mounting panel through the connecting hole adjustably, third cutting edge structure is laminated mutually with the knife face of moving the sword, first portion and the second of snatching one side that the stationary knife was kept away from to the portion is provided with first cutting edge structure and second cutting edge structure respectively, first cutting edge structure and/or second cutting edge structure cooperate with third cutting edge structure. The problems that in the prior art, the height of a boss is reduced due to friction in the process of matching the fixed cutter with the trimming line, the matching gap is too large, the line cannot be cut even if the section of the trimming line is irregular and the like are solved, the cutter discharging precision of the line cutting device is improved, and the trimming line and the line clamping are more stable.

Description

Thread cutting device of lower hem machine

Technical Field

The utility model relates to a clothing manufacture equipment field to in particular to tangent line device of lower hem machine.

Background

A lap machine is a machine that uses one or more sewing threads to form one or more stitches in a seam material to interweave or stitch together one or more layers of the seam material. The lower hem can be used for sewing fabrics such as cotton, hemp, silk, wool, rayon and the like and products such as leather, plastics, paper and the like, and the sewn stitches are neat, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient. The lower hem usually means the part about 5cm that is close to the clothes bottommost, after utilizing the lower hem machine to make up the lower hem of clothes and accomplish, need tailor the line, the trimming cutter of lower hem machine mostly comprises moving sword and stationary knife, and the cutting edge of stationary knife is fixed in the downside of faller downwards, and the cutting edge of moving sword is fixed the upside at the rotating shuttle frame upwards, and the stationary knife forms scissors formula trimming cutter with moving sword, and its weak point lies in: the movable knife edge is arranged on the boss of the movable knife head, and the height of the boss is easily reduced due to friction in the process of matching with the fixed knife to cut the thread due to the small area of the boss, so that the matching gap is too large, the section of the cut thread is irregular, and the thread can not be cut even.

SUMMERY OF THE UTILITY MODEL

The problems that in the prior art, the height of a boss is reduced due to friction in the process of matching a fixed cutter with a trimming line, the matching gap is too large, the section of the trimming line is irregular, and even the line cannot be trimmed are solved.

The utility model provides a tangent line device of lower hem machine, including the stationary knife, move sword and mounting panel, the stationary knife is fixed in on the mounting panel and be provided with third cutting edge structure on the stationary knife, move the sword and include the connecting axle, first portion and the second portion of snatching, be provided with the connecting hole of two at least parallels and slope on the connecting axle, move the sword and be fixed in on the mounting panel through the connecting hole adjustably, third cutting edge structure is laminated mutually with the knife face of moving the sword, first portion and the second of snatching one side that the stationary knife was kept away from to the portion is provided with first cutting edge structure and second cutting edge structure respectively, first cutting edge structure and/or second cutting edge structure cooperate with third cutting edge structure. By means of the arrangement of the connecting hole, the first blade structure, the second blade structure and the third blade structure, the precision of the cutter outlet of the thread cutting device is improved, and thread cutting and thread clamping are more stable.

Preferably, the connecting hole is oval, and the included angle between the major axis of the oval and the horizontal direction is within the range of 30-45 degrees. By means of the inclination angle setting of the connecting hole, the adjustability of the movable knife is achieved, and the accuracy of the shearing line of the line cutting device is improved.

Preferably, the mounting plate is embedded with a guide rail and a slide block, and the slide block is movably fixed in the guide rail. By means of the arrangement of the guide rail and the sliding block, the movable operation of the movable knife is realized.

Further preferably, the guide rail is a long groove rail and is arranged parallel to the axial direction of the fixed knife. By means of the structure, the third blade structure is attached to the blade face of the movable blade, and the third blade structure is matched with the first blade structure and the second blade structure respectively.

Further preferably, the connecting shaft is fixedly connected with the sliding block, so that the movable knife moves along the direction of the guide rail. By virtue of this structure, the drivability and the movability of the movable blade are achieved.

Further preferably, the first grabbing portion is formed by a first protrusion and a second protrusion, and one side of the second protrusion, which is close to the first grabbing portion, is provided with an arc shape. Due to the arc-shaped arrangement, the grabbing operation of the needle and the line of the lower swing machine is convenient to realize.

Further preferably, a first blade structure is arranged on one side of the first protrusion, which is close to the first grabbing part. The first portion of snatching sets up and is used for snatching the curved line, and first sword structure is used for cooperating with third sword structure, realizes the shearing operation to the curved line.

Further preferably, the second grabbing portion is composed of a second protrusion and a third protrusion, and a second blade structure is arranged on one side, close to the second grabbing portion, of the second protrusion. The second snatchs the setting of portion and is used for snatching the lower hem machine needle and line, and the second cutting edge structure is used for cooperating with the third cutting edge structure, realizes the shearing operation to the lower hem machine needle and line.

Preferably, the thread cutting device further comprises a bottom plate assembly, the bottom plate assembly comprises a base bottom plate and an adjusting bottom plate, the base bottom plate is installed on the lower swing machine, and the adjusting bottom plate is movably arranged on the base bottom plate. By means of the arrangement of the adjusting bottom plate, the adjustability of the mounting plate is realized.

Further preferably, a spring is arranged on the base bottom plate, a second long slot hole is arranged on the adjusting bottom plate, and the mounting plate is adjustably fixed on the adjusting bottom plate through the spring and the second long slot hole. The second long slotted hole and the spring are arranged to realize the adjustment of the movable knife in the vertical direction.

The utility model discloses a tangent line device of lower hem machine sets up third cutting edge structure through setting up slope connecting hole, first cutting edge structure and second cutting edge structure on moving the sword, eliminates the boss hidden danger on the stationary knife. In addition, the first long slotted hole and the second long slotted hole on the matching adjusting bottom plate and the spring on the base bottom plate are arranged in a matching mode, so that the problems that in the prior art, the height of a boss is reduced due to friction when a fixed cutter is matched with a trimming line, the matching gap is too large, the line cannot be cut even when the section of the trimming line is irregular, and the like are solved, the precision of the cutter outlet of a line cutting device is improved, and the trimming line and the line clamping are more stable.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and together with the description serve to explain the principles of the invention. Other embodiments and many of the intended advantages of embodiments will be readily appreciated as they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale relative to each other. Like reference numerals designate corresponding similar parts.

Fig. 1 is a schematic view of a movable blade structure of a thread cutting device of a lower hem machine according to an embodiment of the present invention;

fig. 2 is a schematic view of the overall structure of a thread cutting device of a pendulum machine according to an embodiment of the present invention;

description of the reference numerals: 1. the cutting tool comprises a moving blade, 2 parts of a fixed blade, 3 parts of a mounting plate, 4 parts of an adjusting bottom plate, 5 parts of a base bottom plate, 11 parts of a connecting shaft, 12 parts of a first grabbing part, 13 parts of a second grabbing part, 14 parts of a first protrusion, 15 parts of a second protrusion, 16 parts of a third protrusion, 111 parts of a connecting hole, 141 parts of a first blade structure, 151 parts of a second blade structure, 21 parts of a third blade structure, 31 parts of a guide rail, 32 parts of a sliding block, 41 parts of a first long slotted hole, 42 parts of a second long slotted hole and 51 parts of a spring.

Detailed Description

In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. In this regard, directional terminology, such as "top," "bottom," "left," "right," "up," "down," etc., is used with reference to the orientation of the figures being described. Because components of embodiments can be positioned in a number of different orientations, the directional terminology is used for purposes of illustration and is in no way limiting. It is to be understood that other embodiments may be utilized and logical changes may be made without departing from the scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.

Referring to fig. 1, fig. 1 shows according to the utility model discloses a tangent line device of lower hem machine moves sword structure sketch map, as shown in fig. 1, move sword 1 and present the structure of similar key, it includes connecting axle 11, first portion 12 and the second portion 13 of snatching, parallel slope is provided with two at least connecting holes 111 on the connecting axle 11, connecting hole 111 is oval, and the axis of major axis is 30 ° -45 with the contained angle of horizontal direction, preferentially, the contained angle sets up to 45 degrees for move sword 1 can have the swing space of certain minizone, be convenient for move sword 1 and realize better cutting out and snatching the lower hem machine needle line to the curved line. The first bulge 14 and the second bulge 15 form a first grabbing portion 12, the second bulge 15 and the third bulge 16 form a second grabbing portion 13, a first blade structure 141 and/or a second blade structure 151 are arranged on one side, close to the first grabbing portion 12 and/or the second grabbing portion 13, of the first bulge 14 and/or the second bulge 15 respectively, and an arc-shaped structure is arranged on one side, close to the first grabbing portion 12, of the second bulge 15, so that a lower swing machine needle line can be conveniently introduced into the position of the second grabbing portion 13, and subsequent thread cutting operation is achieved.

In a specific embodiment, the first blade structure 141 and/or the second blade structure 151 are/is arranged to cooperate with the third blade structure 21 on the fixed knife 2 to realize the cutting operation of the curved thread and the needle thread of the lower hem machine.

With continued reference to fig. 2, fig. 2 shows an overall structural schematic diagram of a thread cutting device of a pendulum machine according to the present invention. As shown in figure 2, the thread cutting device of the lower swing machine comprises a base floor 5, an adjusting bottom plate 4 and a mounting plate 3 in sequence from bottom to top, the base floor 5 and the adjusting bottom plate 4 form a bottom plate assembly, the base floor 5 is fixed on the lower swing machine, the adjusting bottom plate 4 is connected with the base floor 5 through a first long slot 41 and a bolt, the mounting plate 3 is connected through a spring 51 arranged on the base floor 5 and a second long slot 42 arranged on the adjusting bottom plate 4 through a bolt, the first long slot 41 and the second long slot 42 are both arranged on the adjusting bottom plate 4, so that the thread cutting device can move the adjusting bottom plate 4 along the axial direction of the first long slot 41 according to the requirement of the thread cutting position, and under the action of the second long slot 42 and the spring 51, the mounting plate 3 can move the mounting plate 3 along the axial direction of the second long slot 42, and the thread cutting position is adjusted, realize stable operation of cutting and clamping the wire. Incidentally, the first and second

long slots

41 and 42 may be connected by a bolt or the like other than by fitting with a bolt. Be provided with guided way 31 on the mounting panel 3, guided way 31 sets up to the long groove rail, interior movable mounting has slider 32, guided way 31 is parallel with the axis direction of stationary knife 2, stationary knife 2 is fixed in one side of mounting panel 3, and be close to pendulum machine needle line one side and be provided with third cutting edge structure 21, move sword 1 and fix on slider 32 through connecting hole 111 on the connecting axle 11, make and move sword 1 under the drive of slider 32, can be certain contained angle removal with third cutting edge structure 21, and third cutting edge structure 21 cooperatees with the knife face that moves sword 1, through third cutting edge structure 21 in proper order with second cutting edge structure 151, first cutting edge structure 141 and cooperation, realize the operation of tailorring to pendulum machine needle line, curved line.

In a specific embodiment, the connecting hole 111 is oval, an included angle between the axis of the major axis of the oval and the horizontal direction is within a range of 30-45 degrees, the connecting hole 111 is in a structure with a certain inclination angle with the horizontal plane, so that the first grabbing part 12 and the second grabbing part 13 can grab bent threads and needle threads of a lower swing machine conveniently, the adjustability of the angle of the movable knife 1 is realized, and the situation that the cut thread is irregular in section and even cannot be cut is avoided.

The operation steps of adopting the thread cutting device of the lower hem machine of the application are as follows:

after the lower hem machine finishes sewing, the position of the mounting plate 3 is adjusted through the first long slotted hole 41, the second long slotted hole 42 and the spring 51, the driving slider 32 moves close to the direction of the fixed knife 2, so that the movable knife 1 moves to a needle falling position, the first grabbing part 12 hooks a curved line, the second grabbing part 13 hooks the needle line of the lower hem machine, the driving slider 32 moves away from the direction of the fixed knife 2, firstly, the cutting operation of the needle line of the lower hem machine is carried out through the sliding contact of the second blade structure 151 on the second grabbing part 13 and the third blade structure 21 on the fixed knife 2, and secondly, the cutting operation of the curved line is carried out through the sliding contact of the first blade structure 141 on the first grabbing part 12 and the third blade structure 21 on the fixed knife 2.

It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit and scope of the invention. In this way, if these modifications and changes are within the scope of the claims of the present invention and their equivalents, the present invention is also intended to cover these modifications and changes. The word "comprising" does not exclude the presence of other elements or steps than those listed in a claim. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage. Any reference signs in the claims shall not be construed as limiting the scope.

Claims

1. The utility model provides a tangent line device of lower hem machine, its characterized in that includes the stationary knife, moves sword and mounting panel, the stationary knife is fixed in on the mounting panel, just be provided with third cutting edge structure on the stationary knife, move the sword and include that connecting axle, first portion and the second of snatching snatchs the portion, be provided with the connecting hole of two at least parallels and slope on the connecting axle, move the sword and pass through the connecting hole is adjustably fixed in on the mounting panel, third cutting edge structure with the knife face of moving the sword laminates mutually, first portion of snatching with the second snatchs the portion and keeps away from one side of stationary knife is provided with first cutting edge structure and second cutting edge structure respectively, first cutting edge structure and/or second cutting edge structure with third cutting edge structure cooperatees.

2. The thread cutting device of a pendulum machine according to claim 1, characterized in that the connection hole is oval and the angle between the major axis of the oval and the horizontal is in the interval of 30 ° -45 °.

3. The thread cutting apparatus of a pendulum machine according to claim 1, characterized in that a guide rail and a slide block are embedded in the mounting plate, the slide block being movably fixed in the guide rail.

4. The thread cutting device of a pendulum machine according to claim 3, wherein the guide rail is an elongated groove rail and is disposed parallel to an axial direction of the stationary knife.

5. The thread cutting device of a pendulum machine according to claim 3, characterized in that the connecting shaft is fixedly connected with the slider, so that the movable blade moves in the direction of the guide rail.

6. The thread cutting device of a pendulum machine according to claim 4, characterized in that the first gripping portion is formed by a first protrusion and a second protrusion, and a side of the second protrusion adjacent to the first gripping portion is provided in an arc shape.

7. The thread cutting device of a pendulum machine of claim 6, wherein a side of the first protrusion proximate to the first grasping portion is provided with the first blade structure.

8. The thread cutting device of a pendulum machine according to claim 6, characterized in that the second gripping portion is formed by the second and third projections, and the second blade structure is provided on a side of the second projection close to the second gripping portion.

9. The thread cutting apparatus of a pendulum machine of claim 1, further comprising a base plate assembly comprising a base plate and an adjustment plate, the base plate being mounted to the pendulum machine, the adjustment plate being movably disposed on the base plate.

10. The thread cutting apparatus of a pendulum machine of claim 9, wherein a spring is disposed on the base plate, a second slotted hole is disposed on the adjustment plate, and the mounting plate is adjustably secured to the adjustment plate via the spring and the second slotted hole.