CN214882204U - Novel thread trimming device of sewing machine - Google Patents

Abstract

The utility model discloses a sewing machine's novel trimming device, including bottom plate, limit seat, the last side of bottom plate is fixed with the limit seat, the downside of bottom plate is equipped with the upper shaft, the right side of upper shaft is equipped with synchronous pulley, the left side of upper shaft is equipped with the cam, the left side of cam is equipped with the cam retaining ring, the right side of cam is equipped with the cam stop collar, form the recess between cam and the cam retaining ring, the downside of bottom plate is equipped with the electro-magnet, it moves the iron core to be equipped with the length on the electro-magnet, the one end that moves the iron core for a long time is connected with the tangent line actuating lever. The utility model discloses a trimming device passes through the cooperation of cam and electro-magnet, can be stable carry out the trimming to the end of a thread that leaves after the trimming is shorter, can adapt to making up the trimming of various cloth, cladding moreover, extensive applicability, and the utility model discloses a less of limit seat design is convenient for add man-hour operation.

Description

Novel thread trimming device of sewing machine

Technical Field

The utility model relates to a sewing machine field specifically is a sewing machine's novel trimming device.

Background

The roller car is one kind of sewing machine, is the sewing machine that is used for boots, playshoes, leather shoes and case and bag to make up, and most roller car side seat designs are bigger on the market at present to the end of a thread that remains after the thread trimming device cuts is longer, and the thread trimming is unstable, and the less roller car of side seat design does not have the function of thread trimming, consequently, needs design a new roller car thread trimming device and solves above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel trimming device of sewing machine to solve current technical defect and the technical requirement that can not reach.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a sewing machine's novel trimming device, includes bottom plate, limit seat, the side of going up of bottom plate is fixed with the limit seat, the downside of bottom plate is equipped with the upper shaft, the right side of upper shaft is equipped with synchronous pulley, the left side of upper shaft is equipped with the cam, the left side of cam is equipped with the cam retaining ring, the right side of cam is equipped with the cam stop collar, form the recess between cam and the cam retaining ring, the downside of bottom plate is equipped with the electro-magnet, be equipped with the long iron core that moves on the electro-magnet, the one end that the iron core was moved to the length is connected with the tangent line actuating lever, the one end of tangent line actuating lever is connected with the tangent line connecting rod, the one end of electro-magnet is connected with the tangent line crank, be equipped with the trimming roller on the tangent line actuating lever, the trimming roller slides in the recess.

Preferably, the left side of upper shaft is connected with the lower shaft, the right side of lower shaft is equipped with the clutch, the middle part of lower shaft is equipped with first gear, the downside of bottom plate is fixed with the fixing base, the tangent line actuating lever rotates to be connected on the fixing base, the downside of bottom plate still is equipped with the power transmission machine, the output of going up the power transmission machine is equipped with the fourth gear.

Preferably, the electro-magnet passes through the electro-magnet installation version to be fixed at the downside of bottom plate, the tangent line connecting rod passes through axle position screw and tangent line crank connection, be equipped with the bearing on the upper shaft, the upper shaft passes through the bearing and rotates the connection on the bottom plate, still be equipped with the iron core ring on the long movable iron core, the tangent line actuating lever passes through the drive round pin and is connected with long movable iron core.

Preferably, a wire cutting shaft, an axe shaft and a gold feeding transmission shaft are arranged in the side seat, the lower end of the wire cutting shaft is connected with a wire cutting crank, a lower axe shaft sleeve is sleeved at the lower end of the axe shaft, the axe shaft is connected to the side seat through the lower axe shaft sleeve, a lower gold feeding shaft sleeve is sleeved at the lower end of the gold feeding transmission shaft, the gold feeding transmission shaft is connected to the side seat through the lower gold feeding shaft sleeve, an axe shaft check ring is sleeved on the axe shaft at the lower end of the lower axe shaft sleeve, a second gear is connected to the axe shaft at the lower end of the axe shaft check ring, a third gear is connected to the gold feeding transmission shaft at the lower end of the lower gold feeding shaft sleeve, the second gear is meshed with the first gear, and the third gear is meshed with the fourth gear.

Preferably, the upper end of the wire cutting shaft is connected with a movable knife, an axe shaft upper sleeve is sleeved on the axe shaft, a rotating shuttle is connected on the axe shaft positioned at the upper end of the axe shaft upper sleeve, a shuttle bladder is arranged in the rotating shuttle, a gold feeding transmission shaft check ring is sleeved on the upper end of the gold feeding transmission shaft, and a gold feeding shaft upper sleeve is sleeved on the gold feeding transmission shaft positioned at the upper end of the gold feeding transmission shaft check ring.

Preferably, be connected with the faller frame on the gold feeding epaxial cover, faller frame upside is connected with the gold feeding support, the upside of faller frame still is connected with gold feeding location axle, the right side of gold feeding location axle is connected with gold feeding fixed stop, the epaxial gold feeding that still is connected with of gold feeding location, be connected with the separated time piece on the gold feeding support, still be connected with the stationary knife on the gold feeding support.

Preferably, the side seat is connected with a horn, and the side seat is further provided with a rotating shuttle cover.

Preferably, the cam is provided with a cam notch.

Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model discloses a trimming device passes through the cooperation of cam and electro-magnet, can be stable carry out the trimming to the end of a thread that leaves after the trimming is shorter, can adapt to making up the trimming of various cloth, cladding moreover, extensive applicability, and the utility model discloses a less of limit seat design is convenient for add man-hour operation.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a bottom view of the present invention;

FIG. 4 is a schematic view of the internal structure of the present invention;

FIG. 5 is an enlarged view of A in FIG. 4 according to the present invention;

fig. 6 is a schematic structural view of the needle plate frame of the present invention

Fig. 7 is a schematic view of the back structure of the needle plate frame of the present invention;

fig. 8 is a schematic structural view of the cam of the present invention;

in the figure: 10-a base plate; 11-side seat; 12-a rotating shuttle cover; 13-needle plate frame; 14-a gold feeding bracket; 15-lower shaft; 16-a first gear; 17-a clutch; 18-an upper shaft; 19-cam retainer ring; 20-a cam; 21-a feeding motor; 22-tangent link; 23-a tangent drive rod; 24-a synchronous pulley; 25-a fixed seat; 26-long movable iron core; 27-an electromagnet; 28-axial screw; 29-a second gear; 30-a third gear; 31-a fourth gear; 32-cam stop collar; 33-an electromagnet mounting plate; 34-a core ring; 35-a drive pin; 36-a bearing; 37-tangent crank; 38-lower cover of axe shaft; 39-lower sleeve of gold feeding shaft; 40-a thread cutting shaft; 41-axe shaft; 42-a transmission shaft for feeding gold; 43-moving blade; 44-rotating shuttle; 45-shuttle bladder; 46-stationary knife; 47-branching pieces; 48-feeding gold; 49-cam notch; 50-ox horn; 51-a metal feeding transmission shaft retainer ring; 52-feeding the gold shaft; 53-gold feeding fixed baffle; 54-a gold feeding positioning shaft; 55-axe shaft retainer ring; 56-trimming rollers; 57-grooves; 58-axe shaft upper sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: a novel thread trimming device of a sewing machine comprises a bottom plate 10 and a side seat 11, wherein the side seat 11 is fixed on the upper side surface of the bottom plate 10, an upper shaft 18 is arranged on the lower side surface of the bottom plate 10, a synchronous belt wheel 24 is arranged on the right side of the upper shaft 18, a cam 20 is arranged on the left side of the upper shaft 18, a cam retainer ring 19 is arranged on the left side of the cam 20, the right side of the cam 20 is provided with a cam stop sleeve 32, a groove 57 is formed between the cam 20 and the cam retainer 19, the lower side surface of the bottom plate 10 is provided with an electromagnet 27, the electromagnet 27 is provided with a long movable iron core 26, one end of the long movable iron core 26 is connected with a tangent line driving rod 23, one end of the tangent line driving rod 23 is connected with a tangent line connecting rod 22, one end of the electromagnet 27 is connected with a tangent crank 37, the tangent driving rod 23 is provided with a tangent roller 56, and the tangent roller 56 slides in a groove 57.

Preferably, the left side of upper shaft 18 is connected with lower shaft 15, the right side of lower shaft 15 is equipped with clutch 17, the middle part of lower shaft 15 is equipped with first gear 16, the downside of bottom plate 10 is fixed with fixing base 25, tangent line actuating lever 23 rotates and connects on fixing base 25, the downside of bottom plate 10 still is equipped with and sends motor 21 on, the output that sends motor 21 on is equipped with fourth gear 31.

Preferably, the electromagnet 27 is fixed on the lower side surface of the bottom plate 10 through an electromagnet mounting plate 33, the tangent connecting rod 22 is connected with a tangent crank 37 through a shaft position screw 28, a bearing 36 is arranged on the upper shaft 18, the upper shaft 18 is rotatably connected on the bottom plate 10 through the bearing 36, an iron core ring 34 is further arranged on the long movable iron core 26, and the tangent driving rod 23 is connected with the long movable iron core 26 through a driving pin 35.

Preferably, a wire cutting shaft 40, an axe shaft 41 and a gold feeding transmission shaft 42 are arranged in the side base 11, the lower end of the wire cutting shaft 40 is connected with a wire cutting crank 37, a lower axe shaft sleeve 38 is sleeved at the lower end of the axe shaft 41, the axe shaft 41 is connected to the side base 11 through the axe shaft sleeve 38, a gold feeding shaft sleeve 39 is sleeved at the lower end of the gold feeding transmission shaft 42, the gold feeding transmission shaft 42 is connected to the side base 11 through the gold feeding shaft sleeve 39, an axe shaft retainer ring 55 is sleeved on the axe shaft 41 at the lower end of the axe shaft sleeve 38, a second gear 29 is connected to the axe shaft 41 at the lower end of the axe shaft retainer ring 55, a third gear 30 is connected to the gold feeding transmission shaft 42 at the lower end of the gold feeding shaft sleeve 39, the second gear 29 is meshed with the first gear 16, and the third gear 30 is meshed with the fourth gear 31.

Preferably, the upper end of the wire cutting shaft 40 is connected with a moving blade 43, the upper end of the axe shaft 41 is sleeved with an axe shaft upper sleeve 58, the axe shaft 41 positioned at the upper end of the axe shaft upper sleeve 58 is connected with a rotating shuttle 44, a shuttle bladder 45 is arranged in the rotating shuttle 44, the upper end of the gold feeding transmission shaft 42 is sleeved with a gold feeding transmission shaft retainer ring 51, and the gold feeding transmission shaft 42 positioned at the upper end of the gold feeding transmission shaft retainer ring 51 is sleeved with a gold feeding shaft upper sleeve 52.

Preferably, be connected with needle plate frame 13 on the gold feeding epaxial cover 52, needle plate frame 13 upside is connected with gold feeding support 14, the upside of needle plate frame 13 still is connected with gold feeding location axle 54, the right side of gold feeding location axle 54 is connected with gold feeding fixed stop 53, still be connected with gold feeding 48 on the gold feeding location axle 54, be connected with separated time piece 47 on the gold feeding support 14, still be connected with stationary knife 46 on the gold feeding support 14.

Preferably, the side base 11 is connected with a horn 50, and the side base 11 is further provided with a rotating shuttle cover 12.

Preferably, the cam 20 is provided with a cam notch 49.

The working principle is as follows: the driving device drives the upper shaft 18 to rotate through the synchronous pulley 24, the upper shaft 18 drives the axe shaft 41 to rotate through the first gear 16 and the second gear 29, meanwhile, the upper shaft 18 also drives the cam 20 to rotate, the trimming roller 56 slides in the groove 57, when trimming is needed, the electromagnet 27 is electrified, the electromagnet 27 applies a leftward force to the long movable iron core 26, when the trimming roller 56 moves to the cam notch 49, the long movable iron core 26 pulls the tangent line driving rod 23, so that the trimming roller 56 enters the cam notch 49, at the moment, the other end of the tangent line driving rod 23 pulls the tangent line connecting rod 22 rightward, the tangent line connecting rod 22 pulls the tangent line crank 37, the tangent line crank 37 makes the tangent line shaft 40 rotate by an angle, the tangent line shaft 40 drives the movable knife 43 to rotate by an angle, and the movable knife 43 performs tangent.

For ease of description, the orientations referred to above are now specified as follows: the up, down, left, right, and front-back directions described above coincide with the up, down, left, right, and front-back directions of the projection relation of fig. 2 itself.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. The novel thread trimming device of the sewing machine is characterized by comprising a bottom plate (10) and a side seat (11), wherein the side seat (11) is fixed on the upper side face of the bottom plate (10), an upper shaft (18) is arranged on the lower side face of the bottom plate (10), a synchronous belt pulley (24) is arranged on the right side of the upper shaft (18), a cam (20) is arranged on the left side of the upper shaft (18), a cam retainer ring (19) is arranged on the left side of the cam (20), a cam limiting sleeve (32) is arranged on the right side of the cam (20), a groove (57) is formed between the cam (20) and the cam retainer ring (19), an electromagnet (27) is arranged on the lower side face of the bottom plate (10), a long movable iron core (26) is arranged on the electromagnet (27), a tangent line driving rod (23) is connected to one end of the long movable iron core (26), a tangent line connecting rod (22) is connected to one end of the tangent line driving rod (23), one end of the electromagnet (27) is connected with a tangent crank (37), a tangent line roller (56) is arranged on the tangent line driving rod (23), and the tangent line roller (56) slides in the groove (57).

2. The novel thread trimming device of a sewing machine according to claim 1, characterized in that a lower shaft (15) is connected to the left side of the upper shaft (18), a clutch (17) is arranged on the right side of the lower shaft (15), a first gear (16) is arranged in the middle of the lower shaft (15), a fixed seat (25) is fixed on the lower side surface of the bottom plate (10), the thread trimming driving rod (23) is rotatably connected to the fixed seat (25), an upper feeding motor (21) is further arranged on the lower side surface of the bottom plate (10), and a fourth gear (31) is arranged at the output end of the upper feeding motor (21).

3. The novel thread trimming device of a sewing machine according to claim 1, wherein the electromagnet (27) is fixed on the lower side surface of the bottom plate (10) through an electromagnet mounting plate (33), the thread cutting connecting rod (22) is connected with a thread cutting crank (37) through a shaft position screw (28), a bearing (36) is arranged on the upper shaft (18), the upper shaft (18) is rotatably connected on the bottom plate (10) through the bearing (36), an iron core ring (34) is further arranged on the long movable iron core (26), and the thread cutting driving rod (23) is connected with the long movable iron core (26) through a driving pin (35).

4. The novel thread cutting device of the sewing machine according to claim 1, wherein a thread cutting shaft (40), an axe shaft (41) and a gold feeding transmission shaft (42) are arranged in the side seat (11), the lower end of the thread cutting shaft (40) is connected with a thread cutting crank (37), an axe shaft lower sleeve (38) is sleeved at the lower end of the axe shaft (41), the axe shaft (41) is connected to the side seat (11) through the axe shaft lower sleeve (38), a gold feeding shaft lower sleeve (39) is sleeved at the lower end of the gold feeding transmission shaft (42), the gold feeding transmission shaft (42) is connected to the side seat (11) through the gold feeding shaft lower sleeve (39), an axe shaft retainer ring (55) is sleeved on the axe shaft (41) at the lower end of the axe shaft lower sleeve (38), a second gear (29) is connected to the axe shaft (41) at the lower end of the gold feeding shaft retainer ring (55), and a third gear (30) is connected to the gold feeding transmission shaft (42) at the lower end of the gold feeding shaft retainer ring (39), the second gear (29) is meshed with the first gear (16), and the third gear (30) is meshed with the fourth gear (31).

5. The novel thread trimming device of a sewing machine according to claim 4, characterized in that the upper end of the thread cutting shaft (40) is connected with a movable knife (43), an axe shaft upper sleeve (58) is sleeved on the upper end of the axe shaft (41), a rotating shuttle (44) is connected on the axe shaft (41) positioned at the upper end of the axe shaft upper sleeve (58), a shuttle bladder (45) is arranged in the rotating shuttle (44), a gold feeding transmission shaft check ring (51) is sleeved on the upper end of the gold feeding transmission shaft (42), and a gold feeding shaft upper sleeve (52) is sleeved on the gold feeding transmission shaft (42) positioned at the upper end of the gold feeding transmission shaft check ring (51).

6. The novel thread trimming device of the sewing machine according to claim 5, wherein the needle plate frame (13) is connected to the upper sleeve (52) of the gold feeding shaft, the gold feeding support (14) is connected to the upper side of the needle plate frame (13), the gold feeding positioning shaft (54) is further connected to the upper side of the needle plate frame (13), the gold feeding fixing baffle (53) is connected to the right side of the gold feeding positioning shaft (54), the gold feeding (48) is further connected to the gold feeding positioning shaft (54), the thread dividing piece (47) is connected to the gold feeding support (14), and the stationary knife (46) is further connected to the gold feeding support (14).

7. The novel thread trimming device of a sewing machine according to claim 1, wherein the side base (11) is connected with a horn (50), and the side base (11) is further provided with a rotary shuttle cover (12).

8. The new trimming device for sewing machines according to claim 1, characterized in that said cam (20) is provided with a cam notch (49).

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