CN219410155U - Vertical-mounted thread cutting driving mechanism and flat seaming machine comprising same - Google Patents

Abstract

The utility model relates to a vertically installed thread cutting driving mechanism and a flat seaming machine comprising the same, wherein the thread cutting driving mechanism comprises a motor, the motor is fixedly arranged on a fixed plate, the fixed plate comprises a fixed bottom plate and a fixed vertical plate, a motor shaft of the motor axially vertically penetrates through the fixed bottom plate and is fixedly connected with a half-cycle driving cam group or a whole-cycle driving cam group, the left side and the right side of the inner surface of the fixed vertical plate are respectively fixedly provided with a guide seat which is in sliding fit with a pulling rod, the middle part of the pulling rod is fixedly provided with a loosening/cutting driving plate, a loosening/cutting driving roller is rotatably arranged on a crank arm which turns right on the loosening/cutting driving plate, and the loosening/cutting driving roller is matched with a half-cycle loosening/cutting cam of the half-cycle driving cam group or a whole-cycle loosening/cutting cam of the whole-cycle driving cam group; a loose wire connecting rod and a wire shearing mechanism are fixedly connected on a pulling rod at the outer side of the guide seat, and the loose wire connecting rod is connected with the loose wire mechanism; a spring is sleeved on the pulling rod between the loosening/shearing driving plate and the guide seat on the right side. The utility model further reduces the space occupied during installation.

Description

Vertical-mounted thread cutting driving mechanism and flat seaming machine comprising same

Technical Field

The utility model relates to clothing machinery, in particular to a vertically-installed thread cutting driving mechanism and a flat seaming machine comprising the same.

Background

The motor of the automatic thread cutting driving mechanism installed on the flat seaming machine in the market at present is mainly transversely installed, for example, the applicant discloses a thread cutting, thread loosening and presser foot lifting action driving device for the flat seaming machine in the prior Chinese patent application publication No. CN207452400U, and the flat seaming machine adopts a transverse installation mode, but the motor can realize the thread cutting function, but has larger outward protrusions at the machine head of the flat seaming machine, so that a clothes piece is easy to hang by mistake, and an operator can spread a narrow space.

Disclosure of Invention

Aiming at the technical problems in the prior art, the utility model provides a vertically installed wire cutting driving mechanism, which adopts the following technical scheme:

the vertical wire cutting driving mechanism comprises a motor, wherein the motor is fixedly arranged on a fixed plate, the fixed plate comprises a fixed bottom plate and a fixed vertical plate, a motor shaft of the motor axially vertically penetrates through the fixed bottom plate and then is fixedly connected with a half-cycle driving cam group or a whole-cycle driving cam group, guide seats are respectively fixedly arranged on the left side and the right side of the inner surface of the fixed vertical plate, the guide seats are in sliding fit with a pulling rod, a wire loosening/cutting driving plate is fixedly arranged in the middle of the pulling rod, a wire loosening/cutting driving roller is rotatably arranged on a crank arm which is bent right on the wire loosening/cutting driving plate, and the wire loosening/cutting driving roller is matched with a half-cycle wire loosening/cutting cam of the half-cycle driving cam group or a whole-cycle wire loosening/cutting cam of the whole-cycle driving cam group; a loose wire connecting rod and a wire shearing mechanism are fixedly connected on a pulling rod at the outer side of the guide seat, and the loose wire connecting rod is connected with the loose wire mechanism; a spring is sleeved on the pulling rod between the loosening/shearing driving plate and the guide seat on the right side.

Further, a notch in the left-right direction is formed in the fixing bottom plate, a guide rail in the left-right direction is fixedly arranged on the lower surface of the fixing bottom plate, the guide rail is in sliding fit with a slider, the slider is fixedly connected with a foot lifting driving plate, a foot lifting driving roller is rotatably arranged on a horizontal support arm on the foot lifting driving plate, the foot lifting driving roller is matched with a half-cycle foot lifting cam of a half-cycle driving cam group or a whole-cycle foot lifting cam of a whole-cycle driving cam group, a vertical support arm gap on the foot lifting driving plate passes through the notch and then abuts against a foot lifting connecting rod, and the foot lifting connecting rod is connected with a foot lifting mechanism.

Further, the lower end of the presser foot lifting connecting rod is rotatably provided with a presser foot lifting driven roller, the presser foot lifting driven roller is abutted with the vertical support arm, and the presser foot lifting connecting rod always provides an abutment force for the vertical support arm.

Further, the half-cycle foot lifting cam and the half-cycle loosening/thread cutting cam have a prescribed angle difference in the circumferential direction of the motor shaft, so that the action of the thread cutting mechanism precedes the action of the foot lifting mechanism.

Further, the half-cycle foot lifting cam and the half-cycle loosening/shearing cam of the half-cycle driving cam group are overlapped up and down and fixedly connected together, and the clockwise circumferential surface of the foot lifting cam is a cliff surface and the anticlockwise circumferential surface of the foot lifting cam is a slope surface when seen from the shaft end of the motor shaft upwards.

Further, the full-circumference foot lifting cam of the full-circumference driving cam group is similar to the profile shape of the full Zhou Song/thread cutting cam but the profile of the full-circumference foot lifting cam is located within the profile of the full-circumference loosening/thread cutting cam.

The utility model also claims a flat seaming machine comprising a vertically mounted wire cutting drive mechanism as described above.

Compared with the prior art, the utility model adopts the vertically installed motor, and simultaneously adopts the motor with smaller power due to the change of the installation structure, thereby further reducing the occupied space during installation, ensuring that the whole structure of the sewing machine is more compact and beautiful, and simultaneously reducing the hidden trouble of resonance.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1.

Fig. 2 is a schematic structural diagram of a half-cycle driving cam group in embodiment 1.

Fig. 3 is a schematic view of the structure of fig. 2 from another view angle.

Fig. 4 is a schematic structural diagram of the whole circumference driving cam group of embodiment 2.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or connected internally of two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Embodiment 1, a vertically installed wire cutting driving mechanism as shown in fig. 1-3, comprising a motor 1, wherein the motor 1 is fixedly arranged on a fixed plate 2, the fixed plate 2 comprises a fixed bottom plate 21 and a fixed vertical plate 22, a motor shaft of the motor 1 vertically penetrates through the fixed bottom plate 21 in the axial direction and is fixedly connected with a half-cycle driving cam group 3, a half-cycle foot lifting cam 31 of the half-cycle driving cam group 3 and a half-cycle loosening/wire cutting cam 32 are vertically overlapped and fixedly connected together, and the clockwise circumferential surface of the foot lifting cam 31 is a cliff face and the anticlockwise circumferential surface is a slope face when being seen from the shaft end of the motor shaft upwards. The left and right sides of the inner surface of the fixed vertical plate 22 are respectively fixedly provided with a guide seat 10, the guide seat 10 is in sliding fit with a pulling rod 11, the middle part of the pulling rod 11 is fixedly provided with a loosening/shearing driving plate 12, a loosening/shearing driving roller 13 is rotatably arranged on a crank arm 121 which is turned right on the loosening/shearing driving plate 12, and the loosening/shearing driving roller 13 is matched with a half-cycle loosening/shearing cam 32; the pulling rod 11 outside the guide seat 10 is fixedly connected with a loose wire connecting rod 14 and a wire shearing mechanism, and the loose wire connecting rod 14 is connected with the loose wire mechanism. A spring 15 is sleeved on the pulling rod 11 between the loosening/shearing driving plate 12 and the right guide seat 10. The fixed bottom plate 21 is provided with a notch 211 which is long to the left and right direction, the lower surface of the fixed bottom plate 21 is fixedly provided with a guide rail 5 which is long to the left and right direction, the guide rail 5 is in sliding fit with a sliding block 6, the sliding block 6 is fixedly connected with a foot lifting driving plate 7, a horizontal support arm 71 on the foot lifting driving plate 7 is rotatably provided with a foot lifting driving roller 8, the foot lifting driving roller 8 is matched with a half-cycle foot lifting cam 31, a vertical support arm 72 on the foot lifting driving plate 7 passes through the notch 211 in a clearance manner and then is abutted to a foot lifting connecting rod 9, and the foot lifting connecting rod 9 is connected with a foot lifting mechanism. The lower end of the presser foot lifting connecting rod 9 is rotatably provided with a presser foot lifting driven roller 91, the presser foot lifting driven roller 91 is abutted with the vertical support arm 72, and the presser foot lifting connecting rod 9 always provides an abutting force for the vertical support arm 72. The half-cycle foot lifting cam 31 and the half-cycle loosening/cutting cam 32 have a predetermined angle difference in the circumferential direction of the motor shaft so that the action of the cutting mechanism precedes the action of the foot lifting mechanism.

The driving process of thread cutting and loosening power comprises the following steps:

when the driving cam group fixed on the motor main shaft rotates to the right side, the driving cam group pushes the loosening/shearing driving plate to move to the right, the loosening/shearing driving plate is fixed with the pulling rod, and the pulling rod is driven to move simultaneously when the loosening/shearing driving plate moves. Meanwhile, the loose wire connecting rod is fixed on the pulling rod, and when the pulling rod moves, the loose wire connecting rod is driven to act together. When the pulling rod moves rightwards, the action of the pulling rod is equivalent to providing a shearing power for the thread shearing mechanism, and simultaneously, the action of the thread loosening connecting rod together also provides a thread loosening power for the thread loosening mechanism.

When the motor is reversed again, the motor main shaft drives the driving cam group to reversely rotate, the driving cam group does not provide thrust for the loosening/shearing driving plate any more, meanwhile, the loosening/shearing driving plate can be pushed back to the starting position by the reaction force of the spring, at the moment, the loosening/shearing driving plate drives the pulling rod and the loosening connecting rod fixed on the pulling rod to return to the starting position, the thread cutting mechanism is used for cutting the threads in a closing mode, and the loosening mechanism also returns to the initial state.

The power driving process of the presser foot lifting:

when the driving cam group fixed on the motor spindle rotates leftwards, the foot lifting driving plate is pushed to move leftwards, and the foot lifting driving plate can push the foot lifting connecting rod to act, so that power transmission for lifting the foot is realized.

When the motor is reversed again, the sliding block is not pushed by the cam any more, the presser foot lifting mechanism can push the presser foot lifting connecting rod back to the initial position, and meanwhile the presser foot lifting automatically falls down.

Embodiment 2, see fig. 4, is otherwise identical to embodiment 1 except that the full-circumference drive cam set 4 is substituted for the half-circumference drive cam set 3, the full-circumference foot lift cam 41 of the full-circumference drive cam set 4 is similar in profile shape to the full Zhou Song/shear cam 42 but the profile of the full-circumference foot lift cam 41 is within the profile of the full-circumference loosening/shear cam 42. The thread cutting and loosening power driving process and the presser foot lifting power driving process are similar to those of embodiment 1, and will not be repeated.

The present utility model is not described in detail in the prior art or common general knowledge in the art.

Claims (7)

1. The utility model provides a vertical line actuating mechanism that cuts, including motor (1), motor (1) set firmly on fixed plate (2), fixed plate (2) include fixed bottom plate (21) and fixed riser (22), characterized in that, motor shaft axial vertical ground after passing fixed bottom plate (21) half cycle drive cam group (3) or whole circumference drive cam group (4), guide holder (10) are set firmly respectively in the left and right sides of fixed riser (22) internal surface, guide holder (10) sliding fit pulling rod (11), pulling rod (11) middle part sets firmly pine/cut line drive plate (12), go up turning on turning to turn to the right on pine/cut line drive plate (12) and set up pine/cut line drive gyro wheel (13), pine/cut line drive gyro wheel (13) and half cycle pine/cut line cam (32) of half cycle drive cam group (3) or whole cycle pine/cut line cam (42) of whole cycle drive cam group (4) cooperate; a loose wire connecting rod (14) and a wire shearing mechanism are fixedly connected on a pulling rod (11) at the outer side of the guide seat (10), and the loose wire connecting rod (14) is connected with the loose wire mechanism; a spring (15) is sleeved on the pulling rod (11) between the loosening/shearing driving plate (12) and the right guide seat (10).

2. The vertically installed wire cutting driving mechanism according to claim 1, wherein a notch (211) which is long to the left and right direction is formed in a fixed bottom plate (21), a guide rail (5) which is long to the left and right direction is fixedly arranged on the lower surface of the fixed bottom plate (21), the guide rail (5) is in sliding fit with a sliding block (6), the sliding block (6) is fixedly connected with a foot lifting driving plate (7), a foot lifting driving roller (8) is rotatably arranged on a horizontal support arm (71) on the foot lifting driving plate (7), the foot lifting driving roller (8) is matched with a half-cycle foot lifting cam (31) of a half-cycle driving cam group (3) or a whole-cycle foot lifting cam (41) of a whole-cycle driving cam group (4), and a vertical support arm (72) on the foot lifting driving plate (7) passes through the notch (211) in a gap and then is in butt joint with a foot lifting connecting rod (9), and the foot lifting connecting rod (9) is connected with a foot lifting mechanism.

3. A vertically mounted wire cutting drive mechanism according to claim 2, characterized in that the lower end of the presser foot lifting connecting rod (9) is rotatably provided with a presser foot lifting driven roller (91), the presser foot lifting driven roller (91) is abutted with the vertical support arm (72), and the presser foot lifting connecting rod (9) always provides an abutment force for the vertical support arm (72).

4. A vertically mounted thread cutting drive mechanism according to claim 2, wherein the half-cycle foot lifting cam (31) and the half-cycle loosening/thread cutting cam (32) have a prescribed angular difference in the circumferential direction of the motor shaft such that the action of the thread cutting mechanism precedes the action of the foot lifting mechanism.

5. A vertically mounted wire cutting drive mechanism according to claim 1, characterized in that the half-cycle foot lifting cam (31) of the half-cycle drive cam group (3) and the half-cycle loosening/wire cutting cam (32) are stacked up and down and fixedly connected together, the clockwise circumferential surface of the foot lifting cam (31) is a cliff surface and the counterclockwise circumferential surface is a sloping surface when seen from the shaft end of the motor shaft.

6. A vertically mounted wire cutting drive mechanism according to claim 1, wherein the full circumference foot lifting cam (41) of the full circumference drive cam set (4) is similar in shape to the profile of the full circumference Zhou Song/wire cutting cam (42) but the profile of the full circumference foot lifting cam (41) is located within the profile of the full circumference loosening/wire cutting cam (42).

7. A flat seaming machine comprising a vertically mounted thread cutting drive mechanism as claimed in any one of claims 1 to 6.