CN1445406A

CN1445406A - Sewing Machine Tape Feeder

Info

Publication number: CN1445406A
Application number: CN 02116206
Authority: CN
Inventors: 吕学忠; 萧朝兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-03-19
Filing date: 2002-03-19
Publication date: 2003-10-01
Anticipated expiration: 2022-03-19
Also published as: CN1223714C

Abstract

A strip material feeding device of sewing machine comprises a bracket set, a belt feeding mechanism and a strip material tension control structure. The bracket group is arranged on a working table plate arranged on the sewing machine and can be fed from different directions. The tape feeding mechanism is arranged on the support group and comprises a substrate arranged on the support group; one end of the motor is fixed on the base plate, and the other end of the motor is arranged in a hollow inner hole of the belt conveying wheel; a rotating arm pivoted on the substrate; the pinch roller is arranged on the rotating arm in a rotating mode and is pressed and contacted with the wheel surface of the pinch roller. The band-shaped material passes through a clamping position between the belt feeding wheel and the belt pressing wheel and then reaches a clamping position between the cloth pressing foot and the cloth feeding tooth of the sewing machine to form a tension section. The tension control structure of the strip material determines the steering of the motor according to the tension set value of the strip material and the tension measured value of the strip material generated by the tension control structure, and further controls the tension of the strip material. Which can provide the most appropriate and precise feeding tension for any strip material to meet various requirements of the garment manufacturing industry.

Description

Device for feeding ribbon material in sewing machine

Technical field

The present invention relates to a kind of sewing machine, relate in particular to a kind of device for feeding ribbon material in sewing machine that can accurately control banded material tension force.

Background technology

Sewing machine, Sewing machines is for example being made the band shape material before on the clothing, must control the tension force of banded material fine, could correctly make the band shape material on clothing according to demand like this.Typical example as: when making elastic cord on underpants, the frequent needed elastic force difference of different parts of same underpants, therefore, the Tension Control of banded material just seems very important.

In addition, thickness, the weight difference of banded material, these all are the key factors that influences Tension Control.Particularly thin and light band shape is expected more difficult control, and Chang Rongyi causes and is not that too pine is exactly too tight.If do not have accurate feeding means, be difficult to fully satisfy the diversified demand of clothing manufacturing dealer.

Summary of the invention

In order to overcome the above-mentioned shortcoming that the existing sewing machine tool exists, the invention provides a kind of device for feeding ribbon material in sewing machine, it can reach following purpose:

1. the present invention can be to any banded material, and particularly light and thin elastic cord provides suitable, the most accurate tension force of presenting, to satisfy the various demands of clothing manufacturing industry fully.

2. can provide the tension force of multistage to set, fully to satisfy the various demands of clothing manufacturing industry.

3. small and exquisite band shape material Tension Control structure can be provided, particularly the motor plug be loaded in the hollow endoporus of feed roller of banded material Tension Control structure, make the shared installing space of the banded material of whole group Tension Control structure littler.

4. the present invention is placed in the below of the work table that sewing machine installs with main control box, does not take up room.

5. the present invention counts display with tension section to be installed on the compress pin other or near before the vehicle body casing in car pin the place ahead, the operator need be come back hardly can be visual easily to shown tension force hop count, makes operation more comfortable.

6. the present invention is installed on tension force hop count change-over switch by the display, allows the operator can set the tension force hop count easily, makes operation more comfortable.

7. the present invention's design has the groups of holders of flexible adjustment, so that feeding means is installed, does not need original sewing machine is done any repacking formality, installs more convenient.

8. it can be installed in back, the right of work table according to need, so as from the top, different azimuth forward (FWD) such as below, rear, side, install the different needs that more can satisfy the different users.

9. its tension force sensitivity setting value comprises zero and approaching zero; make banded material Tension Control structure reach the highest to the control of the sensitivity of band shape material tension force; when needs are shut down other operation of do; banded material was arbitrarily stopped at any time; can avoid banded material by tape-feed backrush or pulleying again, be convenient to the operator and indiscriminately ad. as one wishes operate.

10. it also further comprises and send band caution mechanism, fully do not shaken up by the knotting position of band shape material and tie a knot or cause advancing when being obstructed because of other any situation by belt shaking mechanism, banded material continues to move ahead because of can't or being difficult for, but tape-feed still continues to roll up drawstring shape material, and the self-conductance band shape material to tape-feed with seam is tauted and presses the L shaped touch pole that touches in giving band caution mechanism, L shaped touch pole is driven touch members pivot and touch switch and produce for example caution such as the sound or light action, remind user's break-off, so that get rid of knotting.

11. it also further comprises knee dynamic formula pine belt switch mechanism, and knee dynamic formula pine belt switch mechanism is moved earlier, is after zero or approaching zero and make the tension force sensitivity setting value of banded material, and the knee dynamic formula section of changing switching mechanism is moved subsequently.Avoid banded material to be rolled up by mistake.

The technical solution adopted for the present invention to solve the technical problems is:

A kind of device for feeding ribbon material in sewing machine is provided with belt shaking mechanism, and this belt shaking mechanism comprises belt shaking wheel, has non-circular wheel hub; And motor, be in transmission connection with belt shaking wheel, drive the belt shaking wheel rotation, shake to produce, and the band shape material is produced the band effect of trembling, to tremble the long-pending band shape material of reactor startup; It is characterized in that: also comprise: groups of holders, be installed on the work table that sewing machine installs, this table has: the front, near the user; The back, corresponding with the front; The left side joins with the wherein end of front and back, and is positioned at user's the left side; The right joins with the other end of front and back, and is positioned at the right of user; Tape-feed is installed on the described groups of holders, comprises substrate, is to be installed in groups of holders; Motor, vertical fixing is on substrate; Feed roller, the endoporus with hollow, described motor are fixedly arranged on the hollow endoporus of this feed roller; Pivoted arm has rotating shaft, vertically is hubbed on the substrate by this rotating shaft; Pinch roller, change and be located at pivoted arm, and pressure is touched the wheel face in feed roller, to pressing through the banded feed collet between feed roller and the pinch roller, and the band shape material formed the first cramping position, and the band shape material forms the second cramping position because of the cramping between process sewing machine compress pin and the work feed tooth, and makes banded material by the band section of the first cramping position and second cramping position priority cramping, forms tension section; Band shape material Tension Control structure is turning to of control feed roller, to control the tension force size of banded tension section of expecting.

Aforesaid device for feeding ribbon material in sewing machine, wherein tape-feed also comprises: connecting rod is fixedly arranged on the rotating shaft of pivoted arm; Action bars has rotating shaft, borrows this rotating shaft to be hubbed on the substrate; Cam is fixedly arranged in the rotating shaft of action bars, and cam is to contact with connecting rod; Spring acts between connecting rod and the substrate, and connecting rod is shaken, and rotates to drive pivoted arm, pinch roller is contacted with feed roller, and borrow the cam rotation drive link to shake, and rotates with rotating shaft and the pivoted arm that drives pivoted arm, and pinch roller and feed roller are separated; Switch is to be located at substrate and to be positioned at by the pivoted arm, and borrows the rotation of pivoted arm, when pinch roller is separated with feed roller, is subjected to the driving of pivoted arm and moves, with the power supply of cut-out motor; The anti-roll film of banded material, the side is located on the wheel face of feed roller so that will attach on the feed roller wheel face the band shape material from the feed roller wheel face scrape from.

Aforesaid device for feeding ribbon material in sewing machine, wherein banded material Tension Control structure comprises: tension force perception roller, be to be hubbed on the substrate, and be located between the first cramping position and the second cramping position, walk around for banded material, make the tension force of the tension section of banded material put on tension force perception roller, also be equiped with two limit band assemblies, pass through between this two limits band assembly for banded material, and according to the width of band shape material, adjust the spacing of two limit band assemblies, and, adjust the axial location of two limit band assemblies in tension force perception roller outer rim according to the axial location of band shape material on tension force perception roller, each only limits the band assembly to comprise separately: place restrictions on ring, have annular distance, can be set on the outer rim of tension force perception roller; Joint-cutting is to cut off to place restrictions on ring, and the annular distance of placing restrictions on ring can be enlarged or dwindle; The bundle groove is to take shape in the outer rim of placing restrictions on ring; The elastic bunch circle, be that circle is filled in the bundle groove of placing restrictions on the ring outer rim, force the annular distance of placing restrictions on ring to dwindle, make and place restrictions on the outer rim that the ring bundle is sandwiched in tension force perception roller, so that adjust and to place restrictions on the axial location of ring, and make and place restrictions on loop mapping selected axial location on tension force perception roller outer rim in tension force perception roller outer rim; Tension force perception mechanism is to be located on the substrate, and articulates with tension force perception roller, accepting the pressure of tension force perception roller, and changes electronic signal into, and is defined as banded material tension force measured value; The strain member articulates with described tension force perception roller, produces corresponding dependent variable with the pressure of sensing tension force perception roller; The strain induction element is located on the strain member, accepts the pressure of tension force perception roller, and changes electronic signal into; Tension control circuit is the tension force measured value that sets value the band shape material that is produced with tension force perception mechanism according to the band shape material tension force of band shape material, with turning to of decision motor, and then the banded tension force of expecting of control; Comprise that tension sense answers amplifying return circuit, link to each other with described tension force perception mechanism, so that the electronic signal of tension force perception mechanism is amplified; Main controller circuit, store that motor just changes, reverse, banded material tension force master sets value, and band shape is expected data such as tension force sensitivity setting value, and according to the band shape material tension force measured value of strain induction element institute perception, with the data that store in advance relatively after, will control signal and export the motor driver main controller circuit to, through the Motor Drive loop, the forward, reverse or stop of control motor only wait action, to control the tension force of banded material.

Aforesaid device for feeding ribbon material in sewing machine, wherein groups of holders comprises: the ㄈ clevis is clamped on any one side of work table; Pillar, wherein an end is connected with the clevis in ㄈ, and perpendicular to work table the plate face; First joint, wherein an end is fixedly arranged on an other end of pillar; Cantilever, wherein an end is fixed in described first joint.

Aforesaid device for feeding ribbon material in sewing machine, wherein the ㄈ clevis is the back that is clamped on the work table, the bottom of pillar is the perpendicular top of being located at the ㄈ clevis, first joint is the top that is fixedly arranged on pillar, a wherein end of cantilever is to be fixed in first joint, tape-feed is an other end that is fixed in cantilever, and be positioned at the top of sewing machine, the substrate of tape-feed is located at an other end of cantilever, and hanging stick is the place ahead that is positioned at sewing machine, after the feed roller and pinch roller of the first pile warp tape-feed of banded material, pile warp is overhung at the hanging stick in sewing machine the place ahead again, with from the top of sewing machine tape feed, and with the band shape material be fed to clothing above, with the work of making.

Aforesaid device for feeding ribbon material in sewing machine, wherein the ㄈ clevis is the back that is clamped on the work table, the top of pillar is the below that is connected in the ㄈ clevis, dangle downwards in the bottom of pillar, first joint is the below that is fixedly arranged on the pillar and is positioned at the ㄈ clevis, a wherein end of cantilever is to be fixed in first joint, tape-feed is fixed in an other end of cantilever, and be positioned at the below of work table, and the perpendicular other end of being located at cantilever of the substrate of tape-feed, hanging stick is the below that is positioned at the work table, after the feed roller and pinch roller of the first pile warp tape-feed of banded material, pile warp is overhung at the hanging stick of work table below again, and pile warp is hubbed at work table conduction band roller in front, and rear feed is to the compress pin of sewing machine, so that the below tape feed of the table of working certainly, and with the band shape material be fed to clothing below, with the work of making.

Aforesaid device for feeding ribbon material in sewing machine, it also comprises: hanging stick, wherein an end is fixed on the substrate of tape-feed; The conduction band bar is hubbed at the other end of hanging stick.

Aforesaid device for feeding ribbon material in sewing machine, it also comprises: the conduction band roller is the front that is hubbed at the work table, make banded material from the below of the table of working around compress pin to sewing machine.

Aforesaid device for feeding ribbon material in sewing machine, wherein groups of holders comprises: the ㄈ clevis is clamped on any one side of work table; Pillar is the perpendicular top of being located at the ㄈ clevis; Second joint, wherein an end is fixedly arranged on the top of pillar, and an other end is the edge that is fixedly arranged on substrate.

Aforesaid device for feeding ribbon material in sewing machine, wherein the ㄈ clevis is the front that is clamped on the work table, the right or the left side, pillar is located at the top of ㄈ clevis, the substrate of tape-feed flatly is fixed in an other end of second joint, and be positioned at the lateral margin of work table, the rotating tape guide level is changeed an other end of being located at extension rod, the first pile warp rotating tape guide of banded material, after passing bogie and turning to, after the conduction band frame erect of pile warp changes into erectility again, the feed roller of pile warp tape-feed and pinch roller again, last banded material is erectly presented to being installed in the contiguous guide of sewing machine compress pin, with the lateral margin tape feed of the table of working certainly, and banded material package is sewn in the edge of clothing.

Aforesaid device for feeding ribbon material in sewing machine, wherein the ㄈ clevis is the back that is clamped on the work table, the perpendicular top of being located at the ㄈ clevis of pillar, the substrate of tape-feed is an other end that flatly is fixed in second joint, and be positioned at the lateral margin of work table, rotating tape guide flatly changes an other end of being located at extension rod, the first pile warp rotating tape guide of banded material, after passing bogie and turning to, after the conduction band frame erect of pile warp changes into erectility again, the feed roller of pile warp tape-feed and pinch roller again, last banded material is erectly presented to being installed in the contiguous guide of sewing machine compress pin, the back tape feed of table so that work certainly, and banded material package is sewn in the edge of clothing.

Aforesaid device for feeding ribbon material in sewing machine, it also comprises: the conduction band frame has the mast that is inserted in substrate; Two bullet circles, be snare in mast, and pass frame portion for banded material with mast constitutes sealing; Extension rod, wherein an end is to be fixed in second joint; Rotating tape guide is flatly to change an other end of being located at extension rod; Bogie tilts to be located on the extension rod, and between rotating tape guide that axially is not parallel to each other and conduction band frame.

Aforesaid device for feeding ribbon material in sewing machine, it also comprises sending is with caution mechanism, is to be installed between belt shaking mechanism and the tape-feed; So that the perception belt shaking mechanism produces the caution action when failing to tremble out fully the band shape material, this send is with caution mechanism to comprise: pedestal has chute; Switch is to be fixedly arranged on the described pedestal; Touch member, be to be hubbed at pedestal, and be adjacent to switch, touch the pivotal action of member and can touch switch and make switch motion; The sensitivity adjustment member is slidedly arranged on the chute of pedestal adjustably, to adjust the distance between sensitivity adjustment member and the shake-up member; Spring is to be located between sensitivity adjustment member and the shake-up member, and its elastic force makes the shake-up member keep not touch switch; Adjust bolt, wherein pedestal is located in end commentaries on classics, and adjusting bolt is to be bolted in the sensitivity adjustment member, to adjust the distance between sensitivity adjustment member and the shake-up member; Fixed screw runs through the chute of pedestal and is bolted in the sensitivity adjustment member, so that latch-up sensitivity is adjusted the position of member; L shaped touch pole, wherein an end is connected with the shake-up member, move by adjusting the chute of sensitivity adjustment member along pedestal, to adjust the distance between sensitivity adjustment member and the shake-up member, and then the elastic force size of adjustment spring, adjusting the sensitivity of L shaped touch pole, and borrow banded material to press to touch to drive and touch members pivot, touch switch and produce the caution action in L shaped touch pole; When can't or be difficult for continuing to move ahead by the knotting of band shape material, the tape-feed right volume drawstring shape material that continues of carrying on as before makes banded material be tauted to press and touches in L shaped touch pole, L shaped touch pole is driven touch the members pivot touch switch and produce the caution action.

Aforesaid device for feeding ribbon material in sewing machine, it also comprises: the section of changing switching mechanism, it comprises: the section of changing switch is fixedly arranged on work table below; Drive rod is to be hubbed at work table below, and wherein an end is to be adjacent to the section of changing switch; Pine belt switch mechanism, it comprises: switch enclosure is fixedly arranged on the other end of drive rod; Switch is fixedly arranged in the switch enclosure, and the tension force sensitivity setting value that makes banded material when this switch motion is zero or approaching zero; Feeler lever, wherein switch enclosure is located in an end activity, and feeler lever is to be adjacent to above-mentioned switch, and is subjected to user's pushing and presses to switch and to touch; Spring is located between feeler lever and the switch enclosure, feeler lever is limited, to limit the sensitivity of feeler lever by the elastic force of spring to the switch pressure touch amount when touching of pressing by user's pushing; Adjust screw, be that spiral shell is located on the switch enclosure, for the elastic force size of adjusting spring, to adjust the sensitivity of feeler lever, the sensitivity that makes the feeler lever touch switch is the sensitivity that is higher than the section of changing switching mechanism, making the action earlier of loose belt switch mechanism and making the tension force sensitivity setting value of banded material is zero or near after zero, and the section of changing switching mechanism is moved subsequently.Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is an exploded perspective schematic diagram of the present invention.

Fig. 2 is a combination schematic perspective view of the present invention.

Fig. 3 is the exploded perspective schematic diagram of tape-feed of the present invention.

Fig. 4 is the combination schematic perspective view of tape-feed of the present invention.

Fig. 5 limits the front view of band assembly for the present invention.

Fig. 6 is the profile of face line 6-6 shown in Figure 5.

Fig. 7 for the present invention change n segment display n promptly the section of changing switch be installed on schematic perspective view near the head front of compress pin.

Fig. 8 for the present invention change n segment display n promptly the section of changing switch be installed on schematic perspective view near the head side of compress pin.

Fig. 9 is the schematic perspective view of the present invention from the table bottom surface feedback material of working.

Figure 10 is the schematic perspective view of the present invention from table the right feedback material of working.

Figure 11 is the schematic perspective view of the present invention from the table back feedback material of working.

Figure 12 send the exploded perspective schematic diagram of band caution mechanism for the present invention.

Figure 13 send the combination schematic perspective view of band caution mechanism for the present invention.

Combination schematic perspective view when Figure 14 send band caution mechanism to be installed on actual use the on the Sewing machines for the present invention.

Figure 15 is the exploded perspective schematic diagram of the loose belt switch of knee dynamic formula of the present invention mechanism.

Combination schematic perspective view when Figure 16 is knee dynamic formula pine belt switch mechanism of the present invention and the knee dynamic formula section of changing switch combination installation.

Figure 17 is the calcspar of the main controller circuit in the tension control circuit of the present invention.

Figure 18 is the calcspar in the motor driver loop in the tension control circuit of the present invention.

Figure 19 is the calcspar of the panel control loop in the tension control circuit of the present invention.

Figure 20 is the programme diagram of the master controller in the tension control circuit of the present invention.

Figure 21 is the programme diagram in the radiator fan control loop of the present invention.

Figure 22 is the programme diagram () of the motor driver in the tension control circuit of the present invention.

Figure 23 is the programme diagram (two) of the motor driver in the tension control circuit of the present invention.

Figure 24 is the programme diagram (three) of the motor driver in the tension control circuit of the present invention.

Figure 25 is the programme diagram of the panel controller in the tension control circuit of the present invention.

Number in the figure:

30 device for feeding ribbon material in sewing machine

31 groups of holders, 32 tape-feeds

33 banded material Tension Control structure 34 work tables

34b back, 34a front

34c left side 34d the right

35 substrates, 36 motor

37 feed rollers, 38 pivoted arms

39 pinch rollers, 40 endoporus

41 rotating shafts, 42 banded material

43 compress pin, 44 ㄈ clevis

45 pillars, 46 first joints

47 cantilevers, 48 connecting rods

49 action bars, 50 cams

52 rotating shafts of 51 springs

The anti-roll film of 53 switches, 54 banded material

55 tension force perception rollers, 56 tension force perception mechanisms

57 tension control circuits, 58 strain members

59 strain induction elements, 60 main controller circuits

61 limit band assemblies 62 are placed restrictions on ring

63 elastic bunch circles, 64 annular distances

65 joint-cuttings, 66 bundle grooves

67 tension senses are answered amplifying return circuit 68 motor driver main control loops

69 Motor Drive loops, 70 hanging sticks

71 conduction band bars, 72 sewing machines

73 conduction band rollers, 74 holders

75 disks, 76 second joints

77 conduction band framves, 78 bullet circles

79 extension rods, 80 rotating tape guides

81 bogies, 82 masts

83 guides, 84 tension sections are counted display

85 tension sections are counted display loop 86 main control boxs

87 panels, 88 ㄈ shape suspension brackets

89 pin posts, the 90 knee section of moving switches

The 91 manual section of changing switch 92 bolts

93 keyboard cresset scan loops, 94 electric power loops

95 peripheral switch signal input circuits

96 data transmission loop, 97 peripheral switch signal output loops

98 radiator fan control loops, 99 power supply loop of voltage regulation

100 reference voltage loops, 101 anti-knotting device signal output loops

103 data transmission loop, 102 overload protection loops

104 panel main controller circuits, 105 data transmission loop

106 send band caution mechanism 107 belt shaking mechanisms

108 belt shaking wheels, 109 motor

110 pedestals, 111 pulleys

112 switches 113 touch member

114 sensitivity adjustment members, 115 springs

116 adjust bolt 117 fixed screws

118 L shaped touch pole 119 contiguous blocks

120 screws, 121 trunnions

122 chutes, 123 pivot grooves

124 conduction bands seam, 125 section of changing switches

126 section of changing switches, 127 drive rods

128 loose belt switch mechanisms, 129 switch enclosures

130 switches, 131 feeler levers

132 springs, 133 screws

134 screws, 135 groovings

136 groovings

The specific embodiment

See also Fig. 1 to shown in Figure 25, device for feeding ribbon material in sewing machine provided by the present invention (30) comprises belt shaking mechanism (107), and this belt shaking mechanism (107) comprises belt shaking wheel (108), has non-circular wheel hub (137); Motor (109) connects belt shaking wheel (108), drives belt shaking wheel (108) rotation, producing the shake action, and band shape material (42) is produced the band effect of trembling, and is put in band shape material (42) in the container (not shown in the figures) to tremble reactor startup.The invention is characterized in: above-mentioned device for feeding ribbon material in sewing machine also further comprises groups of holders (31), tape-feed (32) and banded material Tension Control structure (33).See also Fig. 2 and Fig. 7 to shown in Figure 11, wherein groups of holders (31) is installed on the work table (34) that sewing machine installs.This table (34) has: front (34a), back (34b), the left side (34c) and the right (34d).Wherein front (34a) is near the user.And back (34b) stands facing each other with front (34a).The left side (34c) is that the wherein end with front (34a) and back (34b) joins, and is positioned at user's the left side.The right (34d) is that the other end with front (34a) and back (34b) joins, and is positioned at the right of user.

See also Fig. 2 to Fig. 4 and Fig. 7 to shown in Figure 11, tape-feed (32) is installed in groups of holders (31), and this tape-feed (32) comprises substrate (35), motor (36), feed roller (37), pivoted arm (38) and pinch roller (39).Wherein substrate (35) is to be installed in groups of holders (31).And motor (36) is to be fixed on the substrate (35).Feed roller (37) has the endoporus (40) of hollow, and power supply motivation (36) is clogged in wherein.Aforementioned pivoted arm (38) has rotating shaft (41), and borrows this rotating shaft (41) to be hubbed on the substrate (35).Wherein pinch roller (39) is to change to be located at pivoted arm (38), and press and touch in the wheel face of feed roller (37), so that will be through band shape material (42) cramping between feed roller (37) and the pinch roller (39), and to band shape material (42) the formation first cramping position, and banded material (42) is because of forming the second cramping position through the cramping between sewing machine compress pin (43) and the work feed tooth, and make banded material (42) by the band section of the first cramping position and second cramping position priority cramping, form tension section (42 ').Above-mentioned band shape material Tension Control structure (33) is turning to of control feed roller (37), to control banded tension force size of expecting the tension section of (42).

See also shown in Figure 3ly, tape-feed (32) further comprises connecting rod (48), action bars (49), cam (50), spring (51).Connecting rod (48) is fixedly arranged in the rotating shaft (41) of pivoted arm (38).Action bars (49) has rotating shaft (52), is hubbed on the substrate (35) by this rotating shaft (52).Cam (50) is fixedly arranged on the rotating shaft (52) of action bars (49), and cam (50) contacts with connecting rod (48).Spring (51) is to act between connecting rod (48) and the substrate (35), connecting rod (48) is shaken, rotate to drive pivoted arm (38), pinch roller (39) is contacted with feed roller (37), shake by cam (50) rotating drive connecting rod (48), rotate with rotating shaft (41) and the pivoted arm (38) that drives pivoted arm (38), pinch roller (39) and feed roller (37) are separated.

See also shown in Figure 3, tape-feed (32) further comprises: switch (53), be located at substrate (35) and be positioned at pivoted arm (38) other, and by the rotation of pivoted arm (38), make pinch roller (39) and feed roller (37) when separating, be subjected to the driving of pivoted arm (38) and move, with the power supply of segment motor (36).

See also shown in Fig. 3,4, tape-feed (32) further comprises the anti-roll film (54) of banded material, is other being located on the wheel face of feed roller (37), so as will to attach on feed roller (37) wheel face the band shape material from feed roller (37) wheel face scrape from.

See also shown in Fig. 1 to Fig. 4 and Figure 17,18, banded material Tension Control structure (33) comprises tension force perception roller (55), tension force perception mechanism (56) and tension control circuit.Wherein tension force perception roller (55) is hubbed on the substrate (35), and this tension force perception roller (55) is to be located between the first cramping position and the second cramping position, walks around for banded material, makes the tension force of the tension section of banded material put on tension force perception roller (55).Aforementioned tension force perception mechanism (56) is to be located at substrate (35), and articulates with tension force perception roller (55), accepting the pressure of tension force perception roller (55), and changes electronic signal into, and is defined as banded material tension force measured value.Tension control circuit is the tension force measured value that sets value the band shape material that is produced with tension force perception mechanism (56) according to the band shape material tension force of band shape material, with turning to of decision motor, and then the banded tension force of expecting of control.

See also Fig. 3 to shown in Figure 6, tension force perception roller (55) is gone up further two limits of installing band assembly (61), so that between this two limit band assembly (61), pass through for banded material, and according to the width of band shape material, adjust the spacing of two limit band assemblies (61), and according to the axial location of band shape material on tension force perception roller (55), adjust two limits band assemblies (61), (61) axial location in tension force perception roller (55) outer rim, each limit band assembly (61) comprises separately places restrictions on ring (62) and elastic bunch circle (63).Wherein placing restrictions on ring (62) has: annular distance (64) can be set on the outer rim of tension force perception roller (55); Joint-cutting (65) is to cut off to place restrictions on ring (62), and the annular distance (64) of placing restrictions on ring (62) can be enlarged or dwindle; Bundle groove (66) is to take shape in the outer rim of placing restrictions on ring (62).Above-mentioned elastic bunch circle (63) is that circle is filled in the bundle groove (66) of placing restrictions on ring (62) outer rim, force the annular distance (64) of placing restrictions on ring (62) to dwindle, make and place restrictions on the outer rim that ring (62) bundle is sandwiched in tension force perception roller (55), so that adjust and to place restrictions on the axial location of ring (62), and make and place restrictions on ring (62) and be positioned at selected axial location on tension force perception roller (55) outer rim in tension force perception roller (55) outer rim.

See also shown in Figure 3ly, tension force perception mechanism (56) comprising: strain member (58) and strain induction element (59).Wherein strain member (58) articulates with tension force perception roller (55), produces corresponding dependent variable with the pressure of sensing tension force perception roller (55).Above-mentioned strain induction element (59) is to be located on the strain member (58), accepts the pressure of tension force perception roller (55), and changes electronic signal into.

See also shown in Figure 17,18 figure, aforementioned tension control circuit comprises: tension sense is answered amplifying return circuit (67) and main controller circuit (60).Wherein tension sense answers amplifying return circuit (67) to link to each other with tension force perception mechanism (56), so that the electronic signal of tension force perception mechanism (56) is amplified.Above-mentioned main controller circuit (60) is to store that motor just changes, reverse, banded material tension force master sets value, and band shape is expected data such as tension force sensitivity setting value, and according to the band shape material tension force measured value of strain induction element institute perception, after the data comparison that stores in advance, output control signal is to motor driver main control loop (68), through Motor Drive loop (69), the control motor is done actions such as forward, reverse or stop end, to control the tension force of banded material (42).

Tension force sensitivity setting value comprises zero and near zero, makes banded material Tension Control structure reach the highest to the control of the sensitivity of band shape material (42) tension force, when draw put banded material (42) after, banded material is arbitrarily stopped.

See also Fig. 2 and Fig. 7 to shown in Figure 11, groups of holders (31) comprising: ㄈ clevis (44), pillar (45), first joint (46), cantilever (47).Wherein ㄈ clevis (44) is the back that is clamped on work table (34).Wherein end as for pillar (45) is to be connected with in ㄈ clevis (44), and perpendicular to work table (34) the plate face.And a wherein end of first joint (46) is fixedly arranged on an other end of pillar (45).A wherein end of above-mentioned cantilever (47) is fixed in first joint (46).

See also shown in Fig. 2,7,8, aforesaid device for feeding ribbon material in sewing machine (30) also further comprises: hanging stick (70) and conduction band bar (71).Wherein a wherein end of hanging stick (70) is on the substrate (35) that is fixed on tape-feed (32).Above-mentioned conduction band bar (71) is an other end that is hubbed at hanging stick (70).Wherein ㄈ clevis (44) is the back (34b) that is clamped on work table (34), the bottom of pillar (45) is the top of being located at ㄈ clevis (44), first joint (46) is fixedly arranged on the top of pillar (45), a wherein end of cantilever (47) is to be fixed in first joint (46), tape-feed (32) is an other end that is fixed in cantilever (47), and be positioned at the top of sewing machine (72), and the substrate (35) of tape-feed (32) is a perpendicular other end of being located at cantilever (47).Hanging stick (70) is positioned at the place ahead of sewing machine (72), after the feed roller (37) and pinch roller (39) of banded material (42) first pile warp tape-feeds (32), pile warp is overhung at the hanging stick (70) in sewing machine (72) the place ahead again, with top tape feed from sewing machine (72), and with band shape material (42) be fed to clothing above, with the work of making.

See also shown in Figure 9, device for feeding ribbon material in sewing machine of the present invention (30), also further comprise: conduction band roller (73), be hubbed at the front (34a) of work table (34) by holder (74), make banded material from the below of the table of working around compress pin to sewing machine.

See also shown in Figure 9, ㄈ clevis (44) also can be clamped on the back (34b) of work table (34), the top of pillar (45) is connected in the below of ㄈ clevis (44), dangle downwards in the bottom of pillar (45), first joint (46) is fixedly arranged on the pillar (45), and be positioned at the below of ㄈ clevis (44), a wherein end of cantilever (47) is to be fixed in first joint (46), tape-feed (32) is fixed in an other end of cantilever (47), and be positioned at the below of work table (34), and the perpendicular other end of being located at cantilever (47) of the substrate (35) of tape-feed (32).Hanging stick (70) is positioned at the below of work table (34), after the feed roller (37) and pinch roller (39) of banded material (42) first pile warp tape-feeds (32), pile warp is overhung at the hanging stick (70) of work table (34) below again, and pile warp is hubbed at the conduction band roller (73) in work table (34) front (34a), rear feed is to the compress pin (43) of sewing machine (72), the below tape feed of table (34) so that work certainly, and with band shape material (42) be fed to clothing below, with the work of making.

See also shown in Figure 10,11, groups of holders of the present invention (31) also can comprise: ㄈ clevis (44), pillar (45), second joint (76).Wherein ㄈ clevis (44) is any one side that the disk (75) borrowing two support bolts (92) and be hubbed at bolt (92) upper end respectively is clamped on work table (34).Pillar (45) is the perpendicular top of being located at ㄈ clevis (44).Second joint (76), wherein an end is the top that is fixedly arranged on pillar (45), an other end is fixedly arranged on the edge of substrate (35).

See also shown in Fig. 3,4,10,11, device for feeding ribbon material in sewing machine of the present invention (30) also further comprises conduction band frame (77), two bullet circles (78), extension rod (79), rotating tape guide (80), bogie (81).Wherein conduction band frame (77) has the mast (82) that is inserted in substrate (35).Above-mentioned two bullet circles (78), (78) be snare in mast (82), and constitute the frame portion of sealing with mast (82), pass frame portion for banded material (42).A wherein end of aforementioned extension rod (79) is to be fixed in second joint (76).As for rotating tape guide (80) is flatly to change an other end of being located at extension rod (79).And bogie (81) is located on the extension rod (79) obliquely, and is positioned between the rotating tape guide (80) and conduction band frame (77) that axially is not parallel to each other.

See also shown in Figure 10ly, ㄈ clevis of the present invention (44) also can be clamped on front (34a), the right (34d) or the left side (34c) of work table (34).The perpendicular top of being located at ㄈ clevis (44) of pillar (45), substrate (35) level of tape-feed (32) is fixed in an other end of second joint (76), and is positioned at the lateral margin of work table (34).Rotating tape guide (80) level is changeed an other end of being located at extension rod (79).Banded material (42) first pile warp rotating tape guides (80), after passing bogie (81) and turning to, after the conduction band frame (77) that elder generation's pile warp is erect changes into erectility, the feed roller (37) of pile warp tape-feed (32) and pinch roller (39) again, last banded material (42) is erectly presented to being installed in the contiguous guide (83) of sewing machine (72) compress pin (43), the lateral margin tape feed of table (34) so that work certainly, and with band shape material (42) overseam in the edge of clothing.

See also shown in Figure 11, ㄈ clevis of the present invention (44) also can be clamped on the back (34b) of work table (34), the perpendicular top of being located at ㄈ clevis (44) of pillar (45), the substrate (35) of tape-feed (32) flatly is fixed in an other end of second joint (76), and being positioned at the lateral margin of work table (34), rotating tape guide (80) level is changeed an other end of being located at extension rod (79).Banded material (42) first pile warp rotating tape guides (80), after passing bogie (81) and turning to, after the conduction band frame (77) of pile warp setting changes into erectility again, the feed roller (37) of pile warp tape-feed (32) and pinch roller (39) again, last banded material (42) is erectly presented to being installed in the contiguous guide (83) of sewing machine (72) compress pin (43), back (34b) tape feed of table (34) so that work certainly, and with band shape material (42) overseam in the edge of clothing.If when having installed obstruction object (for example having installed the cutting knife of deburring), just need be mounted to the mode of back forward (FWD) when the place ahead of guide (83).

The invention provides the groups of holders of flexible adjustment,, do not need original sewing machine is done any repacking formality, install more convenient so that feeding means is installed.

See also Fig. 2 and Fig. 7 to shown in Figure 11, the present invention is fixed in the below of the work table (34) that sewing machine (72) installed with main control box (86) by ㄈ shape suspension bracket (88), does not more take up space.And with panel (87) be installed on work table (34) above, be more conducive to the operator and read the shown numerical value of panel (87).

See also shown in Figure 2ly, tension section is counted the end that display (84) can be installed in hanging stick (70), is beneficial to the operator and watches, and cooperate the knee section of moving switch (90) section of changing to operate, to select required tension force hop count.

There is suitable position in the place ahead as sewing machine (72) pin post (89), also can be as shown in Figure 7, tension section is counted the place ahead that display (84) is installed in sewing machine (72) pin post (89), and cooperate the operation of the knee section of moving switch (90) section of changing, to select required tension force hop count.

Also can be as shown in Figure 8, tension section is counted display (84) to combine with the manual section of changing switch (91), and be installed in the place ahead of sewing machine (72) pin post (89), be convenient to the operator and watch and cooperate the manually section of changing switch (91) section of changing operation, to select required tension force hop count.

Device for feeding ribbon material in sewing machine of the present invention, also further comprise and send band caution mechanism (106), be to be installed between belt shaking mechanism (107) and the tape-feed (32), produce the caution action when band shape is expected (42) so that perception belt shaking mechanism (107) fails to tremble out fully.This send band caution mechanism (106) to comprise: pedestal (110), conduction band seam (124), switch (112), shake-up member (113), sensitivity adjustment member (114), spring (115), adjustment bolt (116), fixed screw (117) and L shaped touch pole members such as (118).Wherein pedestal (110) has chute (122).Conduction band seam (124) is made of two pulley (111), (111) side by side, and these two pulleys (111) side by side change is located at pedestal (110), forms conduction band seam (124) between two pulleys (111), (111), for banded material (42) through wherein.Switch (112) is locked in pedestal (110) by screw (120).Aforementioned shake-up member (113) is hubbed on the pedestal (110) with trunnion (121), and is adjacent to switch (112), touches the pivotal action of member (113) and can touch switch (112) and make switch (112) action.And sensitivity adjustment member (114) is slidedly arranged on the chute (122) of pedestal (110) adjustably, and the data such as thickness, width, Unit Weight that can expect (42) according to band shape are to adjust the distance between sensitivity adjustment member (114) and the shake-up member (113).Above-mentioned spring (115) is located at sensitivity adjustment member (114) and is touched between the member (113), and its elastic force makes shake-up member (113) keep not touch switch (112).A wherein end of adjusting bolt (116) changes the pivot groove (123) of being located at pedestal (110), adjusts bolt (116) and is bolted in sensitivity adjustment member (114), so that the distance between adjustment sensitivity adjustment member (114) and the shake-up member (113).Fixed screw (117) runs through the chute (122) of pedestal (110) and is bolted in sensitivity adjustment member (114), so that latch-up sensitivity is adjusted the position of member (114).Wherein end as for L shaped touch pole (118) is to be linked in by contiguous block (119) to touch member (113).Mobile by adjusting sensitivity adjustment member (114) along the chute (122) of pedestal (110), to adjust the distance between sensitivity adjustment member (114) and the shake-up member (113), and then adjust the elastic force size of spring (115), thereby adjust the sensitivity of L shaped touch pole (118).

Fully do not shaken up when the knotting position of band shape material (42) and tie a knot or other any factor when causing can't or being difficult for continuing to move ahead by belt shaking mechanism (107), but tape-feed (32) still continues volume drawstring shape material (42), and make self-conductance (124) with seam to the band shape material (42) of tape-feed (32) be tauted and press and touch in L shaped touch pole (118), make L shaped touch pole (118) drive touch that member (113) pivots and touch switch (112) and produce caution action (for example send the sound caution rings or caution light), remind user's break-off, so that get rid of knotting.

Device for feeding ribbon material in sewing machine of the present invention further comprises the section of changing switching mechanism (125) (example shown in the figure is the knee dynamic formula), is to be located at work table (34) below, and it comprises the section of changing switch (126), is fixedly arranged on work table (34) below; Drive rod (127) is to be hubbed at work table (34) below, and wherein an end is to be adjacent to the section of changing switch (126).The present invention further comprises loose belt switch mechanism (128).This pine belt switch mechanism (128) comprises switch enclosure (129), switch (130), feeler lever (131), spring (132) and adjusts screw members such as (133).Wherein switch enclosure (129) is fixedly arranged on an other end of drive rod (127) with two screws (134), (134).Switch (130) then is fixedly arranged in the switch enclosure (129).When this switch (130) moved, the tension force sensitivity setting value that can make banded material was zero or approaching zero.Wherein respectively has the grooving (136) that grooving (135), (135) are hubbed at switch enclosure (129) in the both sides of an end as for feeler lever (131).Feeler lever (131) is adjacent to above-mentioned switch (130), and is subjected to user's knee pushing and presses to switch (130) touching.Aforementioned spring (132) is located between feeler lever (131) and the switch enclosure (129), feeler lever (131) is limited, with the sensitivity of qualification feeler lever (131) by the elastic force of spring (132) to switch (130) the pressure touch amount when touching of pressing by user's knee pushing.Adjusting screw (133) is that spiral shell is located at switch enclosure (129), to adjust the elastic force size of spring (132), and then the sensitivity of adjustment feeler lever (131), the sensitivity that makes feeler lever (131) touch switch (130) is the sensitivity that is higher than the section of changing switching mechanism (128), make loose belt switch mechanism (128) action earlier, and the tension force sensitivity setting value that makes banded material is after zero or approaching zero, and the section of changing switching mechanism (125) is moved subsequently.Avoid banded material (42) to be rolled up by mistake.

It is extremely shown in Figure 20 to see also Figure 17, during operation, and start earlier, main controller circuit (60) is initialization, and the memory in main controller circuit (60) reads the preceding setting value of shutdown last time.Read the information of peripheral switch signal input circuit (95) again, read key information to panel controller loop (104), read the information of tensile strain induction element (59) via data transmission loop (96) via data transmission loop (96).Then judge the state of peripheral switch signal input circuit (95), and revise the memory content of main controller circuit (60), set the operation program of peripheral device signal output loop (97) again according to corresponding states.Judged whether the key value input by key information? in this way, revise the memory content of main controller circuit (60) or enter associative operation program picture according to key value.As not, then the screen show value in the memory and button light signal value and order are delivered to panel controller, and tension force set value the sensitivity setting value and order is delivered in the motor driver main controller circuit (68) via data transmission loop (96).

Seeing also Figure 17 to Figure 19 and shown in Figure 21, does radiator fan control loop (98) judge via temperature inductor whether temperature overheated? in this way, radiator fan running.As not, radiator fan stops.

See also Figure 17 to Figure 19 and shown in Figure 22, in the time of start, motor driver main controller circuit (68) initialization is read the information of peripheral switch signal input circuit (95) by motor driver main controller circuit (68), and tension sense is answered the information of amplifying return circuit (67).Does inspection of data transmission loop (103) have data to send into? in this way, receive tension force setting value, sensitivity setting value and order, and be stored to the memory in the motor driver main controller circuit (68) via data transmission loop (103).Do you as not, judge in the order to require to transmit strain induction element (59) information? in this way, transmit the information of strain induction element (59) to main controller circuit (60) via data transmission loop (103).Do you as not, judge in the order and change segment information? in this way, count display loop (85) demonstration via tension section and change segment information.

Then, see also Figure 17 to Figure 19 and shown in Figure 23, compare according to memory content (promptly being received from the tension force setting value and the sensitivity setting value of main controller circuit (60)) and the obtained band shape material tension force measured value of strain induction element (59), and set the direction of action of Motor Drive loop (69) with the control motor.As greater than, then motor just changes.As equal, motor stops.As less than the counter-rotating of, motor.Then, open by the status checkout lever position of peripheral switch signal input circuit (95)? in this way, close Motor Drive loop (16) action.Do you as not, judge that further overload protection loop (102) judges via Motor Drive loop (69) whether motor current excessive? in this way, close Motor Drive loop (16) action.As denying actuating motor driving loop (16) action.

See also Figure 17 to Figure 19 figure and shown in Figure 24, change by peripheral switch signal input circuit (95) status checkout motor position? in this way, start anti-knotting device signal output loop (101) action.As not, close anti-knotting device signal output loop (101) action.

See also Figure 17 to Figure 19 and shown in Figure 25, in the time of start, panel main controller circuit (104) initialization, the displaying contents of removing liquid crystal screen display.Does inspection message transmission loop (105) have data to send into? in this way, receive screen show value and button light signal value and order, and be stored to the memory in the panel main control loop (104) via data transmission loop (105).As not, judge whether to require to transmit key-press status? in this way, transmit key-press status to main controller circuit (60) via data transmission loop (105).As not,, set the displaying contents of liquid crystal screen display and the display lamp number state of keyboard cresset scan loop (93) via screen control loop (138) according to the screen show value and the button light signal value content that receive.Read key-press status via keyboard cresset scan loop (93).

The present invention has following effect and characteristics:

1. the present invention can provide accurate feeding means, can be to any strip material, and particularly light and thin Elastic cord provides suitable, the most accurate tension force of presenting, to satisfy the various need of clothing manufacturing industry fully Ask.

2. it can provide the tension force of multistage to set, fully to satisfy the various demands of clothing manufacturing industry.

3. it can provide small and exquisite strip material tension force control structure, particularly the motor plug is loaded on band shape In the hollow endoporus of the feed roller of material tension force control structure, make whole group of strip material tension force control structure shared Installing space is littler.

4. it is the below that main control box is placed in the work table that sewing machine installs, and does not more account for sky Between.

5. it is the vehicle body casing that tension force hop count display is installed on the other or close car pin the place ahead of cloth pressing foot Before, the operator need be come back hardly can be easily visual to shown tension force hop count, makes operation more easypro Suitable.

6. it is that tension force hop count change-over switch is installed on by the display, and the operator can be established easily Decide the tension force hop count, make operation more comfortable.

7. it is provided with the support group of flexible adjustment, in order to feeding means is installed, does not need original sewing machine Tool is done any repacking formality, installs more convenient.

8. it can be installed in back, the right of work table according to need, so as from the top, below, rear, The different azimuth forward (FWD)s such as side are installed the different needs that more can satisfy the different users.

9. its tension force sensitivity setting value comprises zero and approaching zero, makes strip material tension force control structure right The control of the sensitivity of strip material tension force reaches the highest, when needs are shut down other operation of do, both can make band The shape material arbitrarily stops at any time, can avoid again strip material by tape-feed backrush or pulleying, the convenient operation person with The operation of heart institute with wanting.

10. it also further comprises and send the band warning mechanism, when band is not trembled in the knotting position by strip material Mechanism fully shakes up and ties a knot or because other any situation causes advancing when being obstructed, strip material because of can't or Be difficult for continuing to move ahead, draw strip material but tape-feed still continues volume, and make the self-conductance band be stitched to tape-feed Strip material be tauted and press the L shaped touch pole that touches in sending with warning mechanism, L shaped touch pole is driven touches Move members pivot and touch switch, produce the action such as the caution such as the sound or light, reminding user suspends Work is in order to get rid of knotting.

11. it also further comprises loose belt switch mechanism, loose belt switch mechanism is moved earlier, and make band shape The tension force sensitivity setting value of material is zero or approaches after zero, and the section of changing switching mechanism is moved subsequently, keeps away Exempt from strip material is rolled up by mistake.

Claims

1. A sewing machine strip material feeding device is provided with a belt shaking mechanism, and the belt shaking mechanism includes a belt shaking wheel with a non-circular wheel hub; and an electric motor is connected with the belt shaking wheel transmission; it is characterized in that: it also includes :

The bracket set is installed on the working table board installed on the sewing machine. The table board has: the front side, close to the user; the rear side, corresponding to the front side; the left side of the side; the right side, connected to the other end of the front side and the back side, and located on the right side of the user;

The belt feeding mechanism is installed on the bracket group, including the base board, which is installed on the bracket group; the motor is vertically fixed on the base board; the belt feeding wheel has a hollow inner hole, and the motor is fixed on the belt feeding The hollow inner hole of the wheel; the rotating arm has a rotating shaft, and is vertically pivoted on the base plate by means of the rotating shaft; The belt-shaped material between the pulleys is clamped, and the first clamping position is formed on the belt-shaped material, and the second clamping position is formed by the belt-shaped material passing through the clamping pressure between the sewing machine presser foot and the cloth feeding teeth , and make the strip material successively clamped by the first clamping part and the second clamping part to form a tension section;

The strip material tension control structure is to control the steering of the belt pulley.

2. The sewing machine tape feeding device according to claim 1, wherein the tape feeding mechanism further comprises:

The connecting rod is fixed on the rotating shaft of the rotating arm;

The operating lever has a rotating shaft and is pivoted on the base plate by means of the rotating shaft;

The cam is fixed on the rotating shaft of the operating rod, and the cam is in contact with the connecting rod;

The spring acts between the connecting rod and the base plate;

The switch is arranged on the base plate and is located beside the rotating arm;

The strip material anti-roll sheet is arranged beside the wheel surface of the belt feeding wheel.

3. The sewing machine strip feeding device according to claim 1, wherein the strip tension control structure comprises:

The tension-sensing roller is pivotally installed on the base plate, and is located between the first clamping part and the second clamping part, for the strip material to bypass, and two belt-limiting ring components are also installed for the strip-shaped material to pass through. Passing between the two belt-limiting ring components, each belt-limiting ring component includes: a limit ring, which has a ring hole, and can be worn on the outer edge of the tension sensing roller; a slit, is to cut off the limit ring; a beam groove, It is formed on the outer edge of the limit ring; the elastic band is plugged into the beam groove on the outer edge of the limit ring;

The tension sensing mechanism is arranged on the substrate and is pivotally connected with the tension sensing roller; the strain member is pivotally connected with the tension sensing roller to sense the pressure of the tension sensing roller to generate a corresponding strain; the strain sensing element is provided on strained members;

The tension control circuit includes a tension sensing amplification circuit connected to the tension sensing mechanism; the main controller circuit outputs control signals to the main controller circuit of the motor driver, and controls the motor to rotate forward, reverse or stop through the motor drive circuit.

4. The sewing machine strip feeding device according to claim 1, wherein the bracket set comprises:

ㄈ-shaped clip, fixed on any side of the work table;

A pillar, one end of which is connected to the ㄈ-shaped clamp and is perpendicular to the surface of the work table;

a first joint, one end of which is fixed to the other end of the strut;

One end of the cantilever is fixedly connected to the first joint.

5. The sewing machine strip feeding device according to claim 4, characterized in that the ㄈ-shaped clip is clamped on the back of the work table, and the bottom end of the pillar is erected above the ㄈ-shaped clip. A joint is fixed on the top of the pillar, one end of the cantilever is fixed to the first joint, the tape feeding mechanism is fixed on the other end of the cantilever, and is located above the sewing machine, and the base plate of the tape feeding mechanism is arranged on the cantilever On the other end, the suspension rod is positioned at the front of the sewing machine, and the strip material is wound around the belt feed wheel and the pressure belt wheel of the belt feeding mechanism, and then wound around the suspension rod that is suspended in the sewing machine front.

6. The sewing machine belt feeding device according to claim 4, characterized in that the ㄈ-shaped clip is clamped on the back of the work table, the top of the pillar is connected to the bottom of the ㄈ-shaped clip, and the bottom of the pillar is The end hangs downwards, the first joint is fixed on the pillar and located under the ㄈ-shaped clamp, one end of the cantilever is fixed to the first joint, and the belt feeding mechanism is fixed on the other end of the cantilever, and is located on the work table Below, and the base plate of the tape feeding mechanism is erected at the other end of the cantilever, and the cantilever is located below the work table.

7. The sewing machine strip feeding device according to claim 1, further comprising:

A suspension rod, one end of which is fixedly connected to the base plate of the belt feeding mechanism;

The belt guide rod is pivotally arranged at the other end of the suspension rod.

8 . The sewing machine strip feeding device according to claim 1 , further comprising: a belt guide roller pivotally arranged on the front of the work table.

9. The sewing machine strip feeding device according to claim 1, wherein said bracket set comprises:

ㄈ-shaped clip, fixed on any side of the work table;

The pillar is erected above the ㄈ-shaped clip;

One end of the second joint is fixed on the top of the pillar, and the other end is fixed on the edge of the base plate.

10. The sewing machine strip feeding device according to claim 9, characterized in that the ㄈ-shaped clip is clamped on the front, right or left side of the work table, and the pillar is arranged above the ㄈ-shaped clip to feed the belt. The base plate of the mechanism is fixedly connected to the other end of the second joint horizontally, and is located at the side edge of the work table, and the belt guide wheel is horizontally rotated at the other end of the extension rod.

11. The sewing machine tape feeding device according to claim 9, characterized in that the ㄈ-shaped clip is clamped on the back of the work table, the pillar is erected above the ㄈ-shaped clip, and the base plate of the belt feeding mechanism It is fixedly connected to the other end of the second joint horizontally, and is located at the side edge of the work table, and the guide pulley is horizontally transferred to the other end of the extension rod.

12. The sewing machine tape feeding device according to claim 1, further comprising:

a tape guide frame having a pole inserted into the base plate;

The two elastic rings are snares on the pole, and form a closed frame with the pole for the strip-shaped material to pass through;

an extension rod, one end of which is fixedly connected to the second joint;

The guide pulley is horizontally transferred to the other end of the extension rod;

The bogie is arranged obliquely on the extension rod, and is located between the belt guide pulley and the belt guide frame whose axial directions are not parallel to each other.

13. The sewing machine tape feeding device according to claim 1, characterized in that it also includes a tape feeding warning mechanism, which is installed between the tape shaking mechanism and the tape feeding mechanism, and the tape feeding warning mechanism includes:

the base has a chute;

a switch is fixed on the base;

The actuating member is pivotally arranged on the base and adjacent to the switch, and the pivoting action of the actuating member will touch the switch to make the switch actuate;

The sensitivity adjustment member is adjustable to slide on the chute of the base;

The spring is arranged between the sensitivity adjusting member and the actuating member, and its elastic force keeps the actuating member from touching the switch;

An adjustment bolt, one end of which is rotated to the base, and the adjustment bolt is screwed to the sensitivity adjustment member;

The fixing screw passes through the chute of the base and is screwed to the sensitivity adjustment member to lock the position of the sensitivity adjustment member;

An L-shaped trigger rod, one end of which is connected with the trigger member.

14. The sewing machine strip feeding device according to claim 1, characterized in that it further comprises: a section-changing switch mechanism, which includes: a section-changing switch, which is fixed under the work table; a driving rod, which is pivotally arranged on Below the work table, one end is adjacent to the section switch; the slack switch mechanism includes: a switch box, fixed at the other end of the drive rod; a switch, fixed in the switch box; a touch rod, one end of which is movable In the switch box, the contact rod is adjacent to the switch; the spring is arranged between the contact rod and the switch box; the adjustment screw is screwed on the switch box.