CN209468575U - The synchronous regulation mechanism of foot pressure and feed dog frame inclination angle - Google Patents

Abstract

The utility model relates to the synchronous regulation mechanisms of a kind of foot pressure and feed dog frame inclination angle, including foot pressure regulating mechanism and feed dog frame regulating mechanism, for adjusting foot pressure and feed dog frame inclination angle respectively, to cooperate work feed, the foot pressure regulating mechanism includes: force-applying piece, the driving mechanism for driving the force-applying piece to be axially moved along it；The manual adjustment being flexibly connected with the force-applying piece；Keep the locking piece of relative position between the manual adjustment and the force-applying piece；Act on the elastic conducting power part between the manual adjustment and presser feet；The feed dog frame regulating mechanism includes adjusting component and operating assembly.Simultaneously, sewing quality improves the phenomenon that the utility model can match different-thickness fabric, sew overedger when fabric is crossed thicker than stalk smooth, improve uneven stitching, fabric fold, and the capability improving of machine system flexible manufacturing is with a wide range of applications.

Description

The synchronous regulation mechanism of foot pressure and feed dog frame inclination angle

Technical field

The utility model relates to stitching process fields, synchronous with feed dog frame inclination angle more particularly to a kind of foot pressure Regulating mechanism.

Background technique

Overedger is mainly used for the lock seaming sewing of textile, has a wide range of applications in sewing field.Overedger is sent The reciprocal elliptic motion that material process relies primarily on feed dog frame realizes that overedger constantly jacks up and pull needle by feed dog frame Cloth on plate, to cloth to be processed constantly be hauled to head, to complete entire feeding process.But current Overedger is only capable of processing the cloth of specific thicknesses, can lead to cloth because of the deficiency of feed dog frame mop power in the thick material of sewing Material layering or stitching are overstocked, can lead to stitching fold because feeding is excessive again when sewing thin material.In the process of sewing cloth In, the lower surface of cloth is in contact with feed dog frame, and the lower surface of cloth is in contact with presser feet, and feed dog frame is matched jointly with presser feet Work feed is closed, and the foot pressure regulating mechanism of existing overedger is usually to pass through elasticity possessed by pressure spring, to adapt to presser feet It raises and reduces, generating pressure enables presser feet to compress cloth, is conducive to sewing.Due to pressure spring when elongation or shortening elastic force Difference, when sewing fabric is by Bao Bianhou or stalk seam occurs, it is unsmooth that foot pressure increase causes sewing fabric to pass through, and has card Phenomenon makes sewing machine the problems such as stifled line, fabric fold, stitching is uneven occur.

Therefore, overedger can not adapt to the cloth of different thickness degree, restrict the development and application of overedger, especially exist It is poor quality or the case where scrap usually to occur quilt when the case where sewing some fabric uneven gauges.

Utility model content

Based on this, it is necessary to the technical issues of cloth of different thickness degree can not be adapted to for overedger, provide one kind The synchronous regulation mechanism of foot pressure and feed dog frame inclination angle.In order to achieve the above objectives, the utility model uses following technology Scheme: a kind of synchronous regulation mechanism of foot pressure and feed dog frame inclination angle, including foot pressure regulating mechanism and feed dog Frame regulating mechanism, for adjusting foot pressure and feed dog frame inclination angle respectively, to cooperate work feed, the foot pressure adjusts machine Structure includes:

Force-applying piece,

The driving mechanism for driving the force-applying piece to be axially moved along it；

The manual adjustment being flexibly connected with the force-applying piece；

Keep the locking piece of relative position between the manual adjustment and the force-applying piece；

Act on the elastic conducting power part between the manual adjustment and presser feet；

The feed dog frame regulating mechanism includes adjusting component and operating assembly；

The adjusting component includes adjusting slider and eccentric shaft, and the adjusting slider is embedded in the feed dog frame and energy Enough relatively described feed dog frame slidings, the eccentric shaft has concentric segments and is connected to the eccentric segment of the concentric segments, described inclined The eccentric segment of mandrel wears the adjusting slider and is rotatably assorted with the adjusting slider；

The operating assembly includes electric control element, and the concentric segments of the eccentric shaft are connected to the electric control element, the electricity Control element is controlled the eccentric shaft turns by way of Electronic control and the adjusting slider is driven to adjust the feed dog frame Inclination angle and height.

Feed dog is provided on the feed dog frame in one of the embodiments, the feed dog frame includes actively sending Cloth retainer and differential cloth-feeding retainer, the feed dog include the active tooth being set on the active feed dog frame and are set to Differential tooth on the differential cloth-feeding retainer, the feed dog frame regulating mechanism adjust inclination angle and the height of the feed dog frame, So that the active tooth is higher than the differential tooth in thin material processing status, the differential tooth is lower than when thickness expects processing status, It is concordant with the differential tooth in common process state.

The operating assembly further includes transmission component in one of the embodiments, and the transmission component is set to described Between the concentric segments of eccentric shaft and the electric control element, the electric control element drives the eccentric shaft to turn by the transmission component It is dynamic.

The transmission component includes worm gear and worm screw in one of the embodiments, and the worm gear set is set to the bias The concentric segments of axis, the worm set are set on the output shaft of the electric control element, engaging between the worm gear and the worm screw Rotation drives the eccentric shaft turns.

The driving mechanism is stepper motor in one of the embodiments, is passed through between the stepper motor and force-applying piece Transmission mechanism linkage, the transmission mechanism include:

Worm screw is connected in the output shaft of the stepper motor,

Transmission arm, the transmission arm are swung around a fixed axis, and one end of the transmission arm has to be meshed with the worm screw Driving cog, the other end of the transmission arm is connected with force-applying piece.

The other end of the transmission arm offers strip-shaped hole, the force-applying piece and the biography in one of the embodiments, It is connected between swing arm by the pin shaft being threaded through in strip-shaped hole.

The force-applying piece is inner screw sheath in one of the embodiments, and the manual adjustment is threaded through inner screw sheath It is interior, and be threadedly engaged between inner screw sheath.

The locking piece is locking nut in one of the embodiments, and the locking nut is mounted on the manual tune It offsets on section part and with inner screw sheath axial end face.

It in one of the embodiments, further include the compression bar set being in tilted layout with needle plate to guide direction of exerting pressure, it is described interior Thread bush, the elastic conducting power part are set in compression bar set, and compression bar set, the locking nut are stretched out in the top of the manual adjustment It is mounted on the position that manual adjustment stretches out compression bar set.

In one of the embodiments, further include presser feet raising wire, is equipped between the elastic conducting power part and presser feet by bullet Property leads connector of the pressure conduction to presser feet of power part, and the presser feet raising wire is abutted with the connector.

The synchronous regulation mechanism of a kind of foot pressure and feed dog frame inclination angle provided by the utility model, on the one hand can adjust Inclination angle and the height for saving the feed dog frame enable the feed dog frame according to the change of the thickness degree of different clothes On the other hand feed dog adjusts the pressure of pressure foot and needle plate to the feeding state of cloth in real time in sewing process, with matching Different-thickness fabric cooperates jointly with feed dog frame and facilitates work feed.

Using the overedger of above-mentioned foot pressure and the synchronous regulation mechanism at feed dog frame inclination angle, make sewing machine cross thicker than Smoothly smooth when stalk, the phenomenon that it is uneven to improve stitching, fabric fold, sewing quality improves, the ability of machine system flexible manufacturing It is promoted, is with a wide range of applications.

Detailed description of the invention

Fig. 1 is the structural schematic diagram after the overedger clipped structure that an embodiment of the present invention provides；

Fig. 2 is that overedger shown in Fig. 1 omits the structural schematic diagram after shell；

Fig. 3 is the decomposition diagram of overedger shown in Fig. 2；

Fig. 4 is the structural schematic diagram of shell shown in Fig. 1；

Fig. 5 is the structural schematic diagram of main shaft shown in Fig. 2；

Fig. 6 is the structural schematic diagram of presser foot device shown in Fig. 2；

Fig. 7 is the structural schematic diagram of cloth feeding mechanism shown in Fig. 2；

Fig. 8 is structural schematic diagram of the cloth feeding mechanism under another visual angle shown in Fig. 7；

Fig. 9 is the decomposition diagram of cloth feeding mechanism shown in Fig. 7；

Figure 10 is the decomposition diagram of third transmission component in cloth feeding mechanism shown in Fig. 8；

Figure 11 is the structural schematic diagram of differential amount regulating mechanism in overedger shown in Fig. 2；

Figure 12 is the structural schematic diagram of feed dog frame regulating mechanism in overedger shown in Fig. 2；

Figure 13 is structural schematic diagram of the feed dog frame regulating mechanism shown in Fig. 2 at another visual angle；

Figure 14 is the decomposition diagram of feed dog frame regulating mechanism shown in Figure 13；

Figure 15 a is schematic illustration when feed dog frame is in common working condition；

Figure 15 b is schematic illustration when feed dog frame is in thick material working condition；

Figure 15 c is schematic illustration when feed dog frame is in thin material working condition；

Figure 16 is another structural schematic diagram after overedger clipped structure provided by the utility model；

Figure 17 is the main view of Fig. 1；

Figure 18 is that the foot pressure regulating mechanism in Figure 16 has the schematic perspective view that compression bar covers；

Figure 19 is the structural schematic diagram in the foot pressure regulating mechanism in Figure 16 not with compression bar set；

Figure 20 is the partial structure diagram of the foot pressure regulating mechanism of Figure 18；

Figure 21 is the configuration schematic diagram of Figure 20；

Figure 22 is the structural schematic diagram of the transmission arm in Figure 20.

Main element symbol description

Following specific embodiment will further illustrate the utility model in conjunction with attached drawing.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

It should be noted that it can be directly on another component when component is referred to as " being installed in " another component Or there may also be components placed in the middle.When a component is considered as " being set to " another component, it, which can be, is directly set Set on another component or may be simultaneously present component placed in the middle.When a component is considered as " being fixed on " another group Part, it, which can be, is directly anchored on another component or may be simultaneously present component placed in the middle.Term as used herein " and/or " it include any and all combinations of one or more related listed items.

Fig. 1 and Fig. 3 is please referred to, Fig. 1 is the structural representation after 100 clipped structure of overedger provided by the utility model Figure, Fig. 2 are that overedger 100 shown in Fig. 1 omits the structural schematic diagram after shell 10, and Fig. 3 is that the decomposition of overedger 100 shown in Fig. 2 is shown It is intended to.Overedger 100 is mainly used for the lock seaming sewing of textile, has a wide range of applications in industry and household sewing, is pole For important and accurate sewing machine.

Overedger 100 provided by the utility model include shell 10, main shaft 20, presser foot device 30, cloth feeding mechanism 40 and Head (not shown), main shaft 20 are set to the inside of shell 10 and are connected to cloth feeding mechanism 40 and head, presser foot device 30, work feed Mechanism 40 and head are all set on shell 10, and presser foot device 30 and the opposite and close head of cloth feeding mechanism 40 are arranged.

For shell 10 for carrying main shaft 20, presser foot device 30, cloth feeding mechanism 40 and head, main shaft 20 is connected to power source (not shown), and presser foot device 30, cloth feeding mechanism 40 and head operating, presser foot device 30 can be driven under the driving of power source For pressing the cloth of the transport of cloth feeding mechanism 40 to improve the quality and quality of sewing processing, cloth feeding mechanism 40 is to be added for transporting The cloth of work, head, which is used to sew, processes the cloth that the conveying of cloth feeding mechanism 40 comes.Drive cloth feeding mechanism 40 reciprocal by main shaft 20 Ground transports cloth, then by the tensioning cloth appropriate of presser foot device 30, head can be to the cloth for being in good tensioning state Sewing processing is carried out, to complete the sewing-serging process of overedger 100.

Certainly, in addition to the above-mentioned shell 10 referred to, main shaft 20, presser foot device 30, cloth feeding mechanism 40 and head, overedger The auxiliary bodies such as Guo Xian mechanism, lubricating structure can be also set in 100 to realize smoothly completing for overedger sewing process, herein not It repeats.

Referring to Figure 4 together, Fig. 4 is the structural schematic diagram of shell 10 shown in Fig. 1.Shell 10 is in substantially box-shaped, is had Complex appearance is to match in overedger 100 installation and movement of different components, and shell 10 is by main shaft 20, presser foot device 30, work feed Mechanism 40 and head are separated with external environment, can protect the executing agency inside overedger, and operator is avoided accidentally to touch The sports apparatus of executing agency, to protect the safe operation of operator.

The corresponding main shaft 20 of shell 10 offers spindle hole 11, and spindle hole 11 is installed for main shaft 20 and fixed；It is also set in shell 10 There is the cavity for accommodating power source, which is connected to spindle hole 11.The medium position indent of 10 side of shell simultaneously forms one Working space 12, working space 12 provide the zone of action of cloth feeding mechanism 40, enable cloth feeding mechanism 40 in working space It is moved back and forth in 12 region, to constantly convey cloth for head.The needle for cloth of sewing is additionally provided on shell 10 Plate 13, the substantially plate of needle plate 13, upper surface are cloth loading end, namely the working face 131 with lock seaming operation of sewing, The reciprocally elliptic motion in working space 12 of cloth feeding mechanism 40, to constantly rise up into the top of working face 131 or fall Enter the lower section of working face 131, the uphill process of cloth feeding mechanism 40 can drag cloth, and decline process can reset the position of itself It sets, the rise and fall that cloth feeding mechanism 40 moves in circles can be realized lasting feeding process.

The lateral surface of shell 10 is also provided with operation port and lid (not shown), which rotates close to operation port Ground is connected to the side of shell 10, and the rotation of lid can be closed or opened the operation port, and the part of overedger 100 adjusts machine Structure is arranged in the inside of shell 10 and close to operation port.When lid opens the operation port, part regulating mechanism can be from operation Mouth exposes, and when lid " locked in " operation mouth, the part regulating mechanism is also closed in the shell 10.So.Work as overedger 100 when needing to carry out parameter regulation, and operator can overturn and open lid, so that outside internal parameter regulation component Dew, operator can be adjusted by exposed adjusting component.Lid is by the part regulating mechanism of overedger 100 and external It is environmentally isolated, overedger can be preferably protected on the basis of meeting regulatory demand.

Please refer to fig. 5, Fig. 5 is the structural schematic diagram of main shaft 20 shown in Fig. 2, main shaft 20, which is worn, to be opened up on shell 10 Spindle hole 11, main shaft 20 being capable of being rotated by and each executing agency in overedger 100 driven to operate in power source.It is main Axis 20 has central axis X, and main shaft 20 can be rotated around the central axis X of itself, and the position of central axis X is solid with respect to shell 10 Fixed namely main shaft 20 does the fixed-axis rotation around central axis X.

Main shaft 20 includes the gearratio of cycloid axle formation 21 of eccentric setting to be connected to the transmission mechanism (not shown) of the gearratio of cycloid axle formation 21, The rotation of main shaft 20 will drive gearratio of cycloid axle formation 21 and do eccentric moving around central axis X, and the eccentric moving of gearratio of cycloid axle formation 21 passes through again Transmission mechanism is by power transmission to each executing agency, to realize that the driving to the executing agency operates；It is more on main shaft 20 The power transmission of a gearratio of cycloid axle formation 21 is also achieved that the operating of different executing agencies and coordinative operation in overedger 100.

Referring to Figure 6 together, Fig. 6 is the structural schematic diagram of presser foot device 30 shown in Fig. 2, and presser foot device 30 is installed on shell In 10 and in setting corresponding with working space 12, presser foot device 30 be used to compress by the conveying of cloth feeding mechanism 40 Lai cloth, make It obtains cloth and is in the state being moderately tensioned, to improve the quality of head sewing processing.

Presser foot device 30 includes presser feet axis 31, presser feet arm 32, presser feet bracket 33 and pressure foot 34, and presser feet axis 31 is installed in It can rotate on shell 10 and relative to shell 10, one end of presser feet axis 31 is connected to presser feet arm 32, and the setting of presser feet bracket 33 is being pressed With respect on the other end of presser feet axis 31, pressure foot 34 is arranged on presser feet bracket 33 and being capable of opposite 33 turns of presser feet bracket foot arm 32 It is dynamic.Presser feet axis 31 is for driving presser feet arm 32 to rotate, so as to adjust the setting angle of entire presser foot device 30；Presser feet arm 32 is used for Support presser feet bracket 33；Presser feet bracket 33 is used to support pressure foot 34.It is opposite by the rotation of presser feet axis 31 and pressure foot 34 The rotation of presser feet bracket 33, to realize two axial adjustment of pressure foot 34.

Head is arranged in part opposite with working space 12 on the housing 10 and closes on the setting of presser foot device 30, head It can be rotated under the drive of main shaft 20, and pass through the eedle (not shown) and looper (not shown) work inside crank gearing control Dynamic, so that eedle does regularly linear motion up and down, looper does regularly reciprocally swinging, and head is mutual by eedle and looper Stitching is cooperatively formed, to complete the sewing-serging operation to textile.

It is referring to Figure 7 together the structural schematic diagram of cloth feeding mechanism 40 shown in Fig. 2 to Fig. 8, Fig. 7, Fig. 8 is to send shown in Fig. 7 Structural schematic diagram of the cloth mechanism 40 under another visual angle.Cloth feeding mechanism 40 includes feed dog frame 41, the first transmission component 42, second Transmission component 43 and third transmission component 44, the quantity of feed dog frame 41 are two, respectively active feed dog frame 411 and Differential cloth-feeding retainer 412, the first transmission component 42 are connected to active feed dog frame 411 and differential cloth-feeding retainer 412, and first passes Dynamic component 42 being capable of being rotated by drive active feed dog frame 411 and differential cloth-feeding retainer 412 the in main shaft 20 Linear reciprocating motion on one direction；Second transmission component 43 is set between the first transmission component 42 and differential cloth-feeding retainer 412, Second transmission component 43 can drive differential cloth-feeding retainer 412 reciprocal in a second direction under the drive of the first transmission component 42 Linear motion；Third transmission component 44 is set between the second transmission component 43 and active feed dog frame 411, third transmission component 44 can drive the linear reciprocating motion in a second direction of active feed dog frame 411 under the drive of the second transmission component 43.

In present embodiment, first direction is vertical direction, and second direction is the horizontal direction perpendicular to vertical direction.It can To understand, first direction can also be other directions for favouring vertical direction, and second direction, which can also be, favours level side To other directions；First direction can be mutually perpendicular to second direction, can also be in other angles, first direction and second party To can according to actual production need be correspondingly arranged.

Active feed dog frame 411 under the drive of the first transmission component 42 along first direction linear reciprocating motion, second Linear reciprocating motion, the movement of active feed dog frame 411 in two directions are folded in a second direction under the drive of transmission component 43 Add, shows as reciprocal circular motion spatially.

The forms of motion of differential cloth-feeding retainer 412 is similar with the forms of motion of active feed dog frame 411, differential cloth-feeding tooth Frame 412 under the drive of the first transmission component 42 along first direction linear reciprocating motion, under the drive of third transmission component 44 Linear reciprocating motion in a second direction, the movement superposition of differential cloth-feeding retainer 412 in two directions, shows as spatially past Multiple circular motion.

Due to active feed dog frame 411 and differential cloth-feeding retainer 412 in a second direction to the dragging stroke of cloth often It is greater than the movement travel of feed dog frame 41 in a first direction, therefore active feed dog frame 411 and differential cloth-feeding retainer 412 Reciprocal circular motion is relatively large in lateral up stroke, and up stroke is relatively small in a first direction, active feed dog frame 411 and poor Dynamic feed dog frame 412 spatially shows as reciprocally elliptic motion.

Active feed dog frame 411 and movement of the differential cloth-feeding retainer 412 after being higher by working face 131 can drag cloth Material, the movement after falling into working face 131 can reset the dragging position of itself, active feed dog frame 411 and differential cloth-feeding tooth The reciprocal elliptic motion of frame 412 can be matched with the actuation of head, and active feed dog frame 411 will with differential cloth-feeding retainer 412 Cloth is delivered in head, and head is after active feed dog frame 411 and 412 feeding of differential cloth-feeding retainer to current cloth Duan Jinhang Sewing processing, feed dog frame 41 are further continued for dragging next length of cloth, be recycled simultaneously with this after head is to current cloth completion of processing Realize continuous operation.

The feed dog 413 for dragging cloth is provided on feed dog frame 41, feed dog 413 can be past in feed dog frame 41 Matched under the drive of multiple elliptic motion across needle plate 13, and with the pressure foot 34 in presser foot device 30, feed dog 413 using with Pressure foot 34, which is mutually supported with the movement on first direction, compresses cloth, and drags cloth using the movement in second direction Material.Feed dog 413 includes the active tooth 4131 being set on active feed dog frame 411 and is set to differential cloth-feeding retainer 412 On differential tooth 4132, the active tooth 4131 for dragging cloth is provided on active feed dog frame 411, active tooth 4131 has Jagged surface is to increase the drawing force to cloth；The differential tooth for dragging cloth is provided on differential cloth-feeding retainer 412 4132, differential tooth 4132 is also equipped with jagged surface to increase the drawing force to cloth.Active tooth 4131 and differential tooth Setting is spaced apart from each other between 4132, the gap between active tooth 4131 and differential tooth 4132 is used to provide adding for the head on head Work space, head on head can be to tooth 4131 be had the initiative and the cloth in differential 4132 gap of tooth is processed, to complete Sewing operation.

In present embodiment, active feed dog frame 411 is opposite with the movement of differential cloth-feeding retainer 412 in a first direction same Step, movement in a second direction is asynchronous, so that overedger 100 obtains preferably sewing processing effect.Certainly, actively It can also be moved synchronously between feed dog frame 411 and differential cloth-feeding retainer 412.

In order to guarantee active feed dog frame 411 and Stability and dependability of the differential cloth-feeding retainer 412 during work feed, It is additionally provided with the oil baffle 414 for cooperating active feed dog frame 411 to move with differential cloth-feeding retainer 412 on shell 10 and leads Rail 415, oil baffle 414 are substantially in " mouth " font, and active feed dog frame 411 and differential cloth-feeding retainer 412 pass through oil baffle 414 Centre bore and the actuation in the spatial dimension of the centre bore.It is appreciated that in order to guarantee active feed dog frame 411 and differential cloth-feeding The smooth movement of retainer 412, the aperture of 414 centre bore of oil baffle and the ruler of active feed dog frame 411 and differential cloth-feeding retainer 412 Very little and movement need to form matching.The two sides of oil baffle 414 and active feed dog frame 411 and 412 side pair of differential cloth-feeding retainer It should contact, the side of oil baffle 414 can scrape the lubricating oil wiped on active feed dog frame 411 and differential cloth-feeding retainer 412, keep away Exempt to lubricate the part that the flowing of oil infiltration is directly contacted with cloth, the problems such as pollution so as to cause cloth.

Guide rail 415 substantially be in concave, be fixed at shell 10 and be nested in active feed dog frame 411 with Differential cloth-feeding retainer 412, guide rail 415 are used to improve the stability that active feed dog frame 411 and differential cloth-feeding retainer 412 move, Active feed dog frame 411 and differential cloth-feeding retainer 412 is avoided movement warp occur.

Multiple through-hole (not labeled) are also provided on active feed dog frame 411 and differential cloth-feeding retainer 412, which is used for Oil is crossed, it not only can be in order to infiltration of the lubricating oil on feed dog frame 41, it is also possible that active feed dog frame 411 is sent with differential 412 lightweight of cloth retainer facilitates the weight for reducing by 100 complete machine of overedger.

One end and differential cloth-feeding retainer 412 on active feed dog frame 411 far from active tooth 4131 is far from differential tooth 4132 one end extends outwardly and forms two parallel adjutages 416, forms edge between two parallel adjutages 416 and send The sliding groove 418 that 41 length direction of cloth retainer extends, the adjutage 416 that setting two is parallel to each other are used to adjust for feed dog frame 41 Whole angle.

The approximate mid-section position of active feed dog frame 411 and differential cloth-feeding retainer 412 offers the sliding slot of " mouth " font (not Label), the sliding slot for cooperate the first transmission component 42, in order to the first transmission component 42 driving active feed dog frame 411 with Differential cloth-feeding retainer 412 does linear reciprocating motion in a first direction.

In addition, being also provided with sliding slot 417 along first direction on differential cloth-feeding retainer 412, sliding slot 417 is used for for the second transmission The part-structure of component 43 is embedded in sliding, to realize the linear reciprocating motion in a second direction of differential cloth-feeding retainer 412.Actively send Cloth retainer 411 is also provided with through-hole (not labeled), which is used to connect for third transmission component 44 and be embedded in, to realize third Being fixed to each other between transmission component 44 and active feed dog frame 411.

It is the decomposition diagram of cloth feeding mechanism 40 shown in Fig. 7 also referring to Fig. 9, Fig. 9.First transmission component 42 is set in On main shaft 20 and it is connected to active feed dog frame 411 and differential cloth-feeding retainer 412, the first transmission component 42 is for transmitting main shaft 20 kinetic energy and drive active feed dog frame 411 and differential cloth-feeding retainer 412 along first direction linear reciprocating motion.

First transmission component 42 includes vertical driving sliding block 421, eccentric wheel 422 and feeding connecting rod 423, and vertical driving is slided Block 421 for driving active feed dog frame 411 and differential cloth-feeding retainer 412 to move back and forth along first direction, eccentric wheel 422 with give Expect that connecting rod 423 cooperates, for driving the operating of the second transmission component 43.

Vertical driving sliding block 421 is substantially in bulk, and the vertical approximate center for driving sliding block 421 offers through-hole, vertically Driving sliding block 421 is set at a gearratio of cycloid axle formation 21 of main shaft 20 by the through-hole.Vertical driving sliding block 421 is embedded at " mouth " It at the center sliding slot of font feed dog frame 41, and is in contact with the inner sidewall of feed dog frame 41, main shaft 20 is around own central axis line Meeting is rotated so that gearratio of cycloid axle formation 21 does eccentric rotary, also with regard to driving the vertical driving sliding block 421 being set in gearratio of cycloid axle formation 21 to make The parallel moving of circumferencial direction.It is vertical to drive at the sliding slot opened up inside feed dog frame 41 due to driving sliding block 421 to be arranged in vertically Movable slider 421 can the sliding slot reciprocatingly slides in the guidance lower edge of the sliding slot, also just drives sliding block 421 in the fortune of side surface direction vertically The dynamic sliding slot by inside feed dog frame 41 discharges, vertical that sliding block 421 is driven only to drive feed dog frame 41 reciprocal in a first direction Ground linear motion, to realize the process that main shaft 20 drives feed dog frame 41 to move back and forth along first direction.

Eccentric wheel 422 and feeding connecting rod 423 are sequentially set on main shaft 20,423 phase of eccentric wheel 422 and feeding connecting rod Mutually cooperation, for driving the movement of the second transmission component 43, to drive active feed dog frame 411 and poor for the second transmission component 43 Linear reciprocating motion of the dynamic feed dog frame 412 on lateral provides power resources.Eccentric wheel 422 is fixed on main shaft 20 and can It is rotated under the drive of main shaft 20；One end of feeding connecting rod 423 is set on eccentric wheel 422 and is rotatablely connected with eccentric wheel 422, The other end is connected at the second transmission component 43.Eccentric wheel 22 is set in the d-axis section of main shaft 20, due to the bias of eccentric wheel 22 Setting, main shaft 20 show as eccentric moving of the eccentric wheel 22 around main shaft 20 to its rotate driving；Again due to 423 sets of feeding connecting rod It is located on eccentric wheel 22, eccentric wheel 22 shows as the turnover campaign of feeding connecting rod 423 to the driving effect of feeding connecting rod 423, partially Heart wheel 22 and feeding connecting rod 423 form a crank and rocker mechanism, thus the swing for driving the second transmission component 43 reciprocal.

In present embodiment, the first transmission component 42 further includes eccentric cam 424 and is set to spine on eccentric cam 424 Pawl (not labeled), eccentric wheel 22 and relative position of the feeding connecting rod 423 on main shaft 20 are realized by eccentric cam 424 and pawl It is fixed；Certainly, eccentric cam 424 and pawl also have the function of adjusting the executive component in overedger 100, do not go to live in the household of one's in-laws on getting married herein It states.

Referring again to Fig. 7 and Fig. 8, one end of the second transmission component 43 is connected to the feeding connecting rod in the first transmission component 42 423, the other end is connected to differential cloth-feeding retainer 412.Second transmission component 43 include cloth pushing shaft 431, differential cloth feeding crank 432, Link block 433, cover board 434 and sliding block 435 is laterally driven, cloth pushing shaft 431 wears differential cloth feeding crank 432 and is mounted on shell On body 10, by the carrying of cloth pushing shaft 431, the second transmission component 43 can be set at shell 10 with stable state.Work feed The both ends of axis 431 are additionally provided with axle sleeve (not labeled), and cloth pushing shaft 431 is fixed on the housing 10 and can be in shell by the axle sleeve It is rotated under 10 carrying.

Differential cloth feeding crank 432 is general " l "-shaped, and a part and the cloth pushing shaft 431 of short side are fixed to each other, short side it is remaining Lower part is rotatablely connected with feeding connecting rod 423, and long side then protrudes into the cavity surrounded by link block 433 and cover board 434.Difference Feeding connecting rod 423 in dynamic cloth feeding crank 432 and the first transmission component 42 is rotatablely connected, and the swing of feeding connecting rod 423 will drive Differential cloth feeding crank 432 reciprocally rotates.Differential cloth feeding crank 432 is also provided with multiple through-holes in long side part, which uses In excessively oily, lubricating oil is enabled preferably to infiltrate differential cloth feeding crank 432.

Link block 433 is fixed to each other with cover board 434, surrounds protrude into for the long side of differential cloth feeding crank 432 between the two Opening；Link block 433 is convexly equipped with raised (not labeled), link block 433 and cover board 434 towards the position for laterally driving sliding block 435 Corresponding position offer screw hole (not labeled), link block 433 and cover board 434 can be realized between the two by threaded fastener Be fixed to each other.

It laterally drives sliding block 435 to be embedded in the sliding slot 417 that differential cloth-feeding retainer 412 is also opened up along first direction, laterally It drives the approximate centre position of sliding block 435 hollow, laterally drives the hollow part of sliding block 435 for for convex on link block 433 Insertion is played, to realize link block 433 and laterally drive the rotation connection of sliding block 435.

Transmission with the first transmission component 42 to the second transmission component 43, feeding connecting rod 423 can be in the drives of main shaft 20 Differential cloth feeding crank 432 in the second transmission component 43 of lower driving is reciprocally swung, differential cloth feeding crank 432 and cloth pushing shaft 431 It is fixed to each other, differential cloth feeding crank 432 can reciprocally be swung with cloth pushing shaft 431 at this time in whole form.Differential cloth feeding crank 432 long end is protruded into the space that link block 433 and cover board 434 are surrounded, and the swing of differential cloth feeding crank 432 will drive connection It block 433, cover board 434 and laterally drives sliding block 435 and also does reciprocal swing.

It can slide, laterally drive in the sliding slot 417 of differential cloth-feeding retainer 412 due to laterally driving sliding block 435 Swing of the sliding block 435 in space, which is respectively, to be laterally driven sliding block 435 and 417 reciprocatingly slides and laterally drive sliding block along the chute 435 linear reciprocating motion on vertical 417 extending direction of sliding slot is arranged due to laterally driving sliding block 435 in differential cloth-feeding tooth On frame 412, then laterally driving linear reciprocating motion of the sliding block 435 on vertical 417 extending direction of sliding slot will drive differential send Cloth retainer 412 goes up linear reciprocating motion in the lateral of vertical first direction, to realize the second transmission component 43 in the first transmission Component 42 drives lower driving differential cloth-feeding retainer 412 along the process for laterally doing linear reciprocating motion.

By opening up for sliding slot 417, laterally drives the movement of sliding block 435 in a first direction and be released, laterally drive sliding block 435 can be by itself in the motion transmission to differential cloth-feeding retainer 412 of lateral.It should be noted that differential cloth-feeding is bent The pivot angle of handle 432 can be by laterally driving the release of the rotation connection between sliding block 435 and link block 433, to avoid differential send Cloth crank 432 forms movement interference because that can not rotate.

It is the decomposition diagram of third transmission component 44 in cloth feeding mechanism 40 shown in Fig. 8 also referring to Figure 10, Figure 10.The Three transmission components 44 include active cloth feeding crank 441, connecting rod 442 and connecting rod set 443, and active cloth feeding crank 441, which is set in, to be sent It is rotatablely connected on cloth beam 431 and with connecting rod 442, the setting of connecting rod 442 is between connecting rod set 443 and active cloth feeding crank 441, connecting rod 442 one end is embedded in for the connector (not labeled) being arranged on active cloth feeding crank 441, and the other end is embedded in for connecting rod set 443, Connecting rod set 443 wears one end of connecting rod 442 and is fixed on active feed dog frame 411, to realize third transmission component 44 With the interconnection of active cloth feeding crank 441.

Sliding slot (not labeled) is offered on active cloth feeding crank 441, the sliding slot is arc-shaped and substantially in a first direction Extend, the connecting pin (not labeled) for connecting 442 one end of connecting rod is embedded in sliding slot, active cloth feeding crank 441 passes through connection Pin connection discharges component motion in a first direction by connecting rod 442 in connecting rod 442, active cloth feeding crank 441, so that actively Lateral movement can be only transferred at active feed dog frame 411 by resultant motion of the cloth feeding crank 441 on vertical and lateral.

Through-hole is offered on the opposite both ends of connecting rod 442, one in two through-holes is another for 443 insertion of connecting rod set A connecting pin on active cloth feeding crank 441 is embedded in.Connecting rod 442 being capable of driving effect in active cloth feeding crank 441 and company Drive active feed dog frame 411 in the lateral upper linear reciprocating motion of vertical first direction under the connection function of rod set 443.

Cloth pushing shaft 431 connects active feed dog frame 411 and differential cloth-feeding retainer 412, so that active feed dog frame 411 and poor The movement source of dynamic feed dog frame 412 is consistent, it is only necessary to be adjusted each in the second transmission component 43 and third transmission component 44 The initial position or length of a structure, so that active feed dog frame 411 has different movement rails from differential cloth-feeding retainer 412 Mark, and keep concordant in vertical position.

Drive active feed dog frame 411 and differential cloth-feeding retainer 412 in a first direction and lateral reciprocal by main shaft 20 Movement is conducive to keep active feed dog frame so that active feed dog frame 411 is identical as the driving source of differential cloth-feeding retainer 412 411 is synchronous with 412 forms of motion of differential cloth-feeding retainer, avoids the occurrence of multiple driving sources and drives active feed dog frame 411 respectively It is moved with differential cloth-feeding retainer 412, leads to the vertical and nonsynchronous problem of lateral movement.

Certainly, if not considering stationary problem, the elliptic motion of active feed dog frame 411 and differential cloth-feeding retainer 412 can also To respectively drive realization by multiple driving sources.

Also referring to Figure 11, Figure 11 is the structural schematic diagram of differential amount regulating mechanism 50 in overedger 100 shown in Fig. 2. Overedger 100 is in order to realize the adjusting to amount differential between active feed dog frame 411 and differential cloth-feeding retainer 412, overedger 100 It is inside additionally provided with differential amount regulating mechanism 50, differential amount regulating mechanism 50 includes adjusting rod 51, differential crank 52 and differential company Piece 53, it is differential in flakes 53 one end be articulated in differential crank 52, the other end is connected to the cover board 434 in the second transmission component 43, One end of differential crank 52 is connected to adjusting rod 51, can rotate in the oscillation adjustment of adjusting rod 51 and drive differential in flakes 53 Movement.One end of adjusting rod 51 is fixedly connected on differential crank 52, and adjusting rod 51 adjusts differential company by the change of self-view The positional relationship of piece 53.

Adjusting rod 51 rotates under the adjusting of operator around the tie point of adjusting rod 51 and differential crank 52, adjusting rod 51 Rotation will drive the differential crank 52 that is firmly connected with it and rotate, the rotation of differential crank 52 can drag differential 53 to move in flakes It is dynamic.Due to it is differential in flakes 53 and the second cover board 434 in transmission component 43 be rotatablely connected, it is differential in flakes 53 by differential crank 52 Drive show as itself around the rotation of cover board 434 and with the 417 whole sliding along the chute of cover board 434.Differential in flakes 53 Under drive, position of the sliding block 435 in sliding slot 417 that laterally drive being fixedly connected with link block 433 and cover board 434 becomes Change, laterally drive the movement initial position of sliding block 435 to change, as laterally driving 435 actual motion of sliding block lateral It decomposes, the motion state of differential cloth-feeding retainer 412 also just changes, and send to active feed dog frame 411 with differential to realize The adjusting of differential amount between cloth retainer 412.

In order to further increase the convenience that differential amount is adjusted, differential amount regulating mechanism 50 provided by the utility model is also wrapped The adjusting panel 54 that 10 outside of shell is set is included, sliding slot (not labeled), adjusting rod 51 and setting are offered in adjusting panel 54 Sliding block (not labeled) in sliding slot is fixedly connected, and regulating part 541 is installed on sliding block, and operator passes through operation regulating part 541 can adjust the swing position of adjusting rod 51, consequently facilitating the operation of operator.

Further, the status indicators such as dial can also be set in adjusting panel 54, consequently facilitating visualization and measurement The differential amount of the adjusting of change.

Differential amount regulating mechanism 50 provided by the utility model is additionally provided with fixing axle 521 on differential crank 52, fixed Axis 521 is installed in the inside of shell 10 and is realized by axial screw 522 and is fixedly connected with adjusting rod 51.Pass through setting Differential crank 52 can be stably placed on shell 10 by fixing axle 521, and axial screw 522 can also realize differential crank Being reliably connected between 52 and adjusting rod 51 further improves the reliability and stability of the work of overedger 100.

It is the structure of feed dog frame regulating mechanism 60 in overedger 100 shown in Fig. 2 also referring to Figure 12 to Figure 14, Figure 12 Schematic diagram, Figure 13 are structural schematic diagram of the feed dog frame regulating mechanism 60 shown in Fig. 2 at another visual angle, and Figure 14 is to send shown in Figure 13 The decomposition diagram of cloth retainer regulating mechanism 60.Existing overedger can only process spy during realizing sewing operation The cloth for determining thickness, it is very poor to the sewing efficiency of other thickness range clothes.In order to improve the adaptability to different-thickness cloth, The ability of machine system flexible manufacturing is promoted, feed dog frame regulating mechanism 60 is additionally provided on overedger 100, feed dog frame is adjusted Mechanism 60 is connected to feed dog frame 41, leads to the angle and height for adjusting feed dog frame 41, changes different thickness using feed dog 413 The feeding state for spending cloth, so that cloth is in tensioning state appropriate, to improve the sewing efficiency of different-thickness cloth.

Feed dog frame regulating mechanism 60 is arranged in the side of shell 10 and is connected to feed dog frame 41, and feed dog frame is adjusted Mechanism 60 includes adjusting component 61 and operating assembly 62, and the one end for adjusting component 61 is connected to operating assembly 62, and the other end connects It is connected to feed dog frame 41, adjusts the angle that component 61 is used to adjust feed dog frame 41；Operating assembly 62 is arranged on the housing 10, For controlling to adjust component 61.

Under the control action of operating assembly 62, component 61 is adjusted according to the thickness degree of cloth and adjusts accordingly feed dog The inclination angle of frame 41, to change the inclination angle of feed dog 413 on feed dog frame 41, feed dog 413 is integral inclined to change itself Highly, feed dog 413 adapts to the cloth of different thickness degree by oneself height and change of pitch angle.

Adjusting component 61 includes eccentric shaft 611 and adjusting slider 612, and eccentric shaft 611 is connected to operating assembly 62, adjusts and slides Block 612 is set on eccentric shaft 611 and is embedded at two on feed dog frame 41 parallel adjutages 416, eccentric shaft 611 612 actuation of adjusting slider is able to drive under the driving of operating assembly 62, to adjust the angle of feed dog frame 41.

Eccentric shaft 611 includes concentric segments 6111 and is connected to the eccentric segments 6112 of concentric segments 6111, eccentric shaft 611 it is same Heart section 6111 is fixed on the housing 10, and eccentric shaft 611 can be around the center axis thereof of concentric segments 6111；In eccentric segment 6112 The center decentraction of the heart and concentric segments 6111, the two deviate a preset distance, and eccentric segment 6112 can be in concentric segments 6111 Drive lower moving.

Adjusting slider 612 is in bulk, inner hollow and the eccentric segment 6112 for being arranged eccentric shaft 611, adjusting slider 612 It is embedded between two parallel adjutages 416, the eccentric segment 6112 of adjusting slider 612 and eccentric shaft 611 is rotatablely connected, eccentric The moving of the eccentric segment 6112 of axis 611 will drive the parallel moving of adjusting slider 612.

Since adjusting slider 612 is embedded between two parallel adjutages 416, adjusting slider 612 can be in adjutage 416 are formed by track and slide, and slide, can release in the sliding groove 418 that adjusting slider 612 is formed between adjutage 416 Movement in a second direction brought by eccentric shaft 611 is put, so that the parallel moving of adjusting slider 612 only will drive adjutage 416 rise or decline in a first direction.Adjutage 416 is arranged on one end of feed dog frame 41, feed dog frame 41 it is another One end is fixed by main shaft 20, therefore adjutage 416 rises or declines in a first direction and will drive feed dog frame 41 and incline Tiltedly, the inclined angle of feed dog frame 41 is determined by the distance that adjutage 416 moves in a first direction.

In one embodiment of the utility model, operating assembly 62 adjusts eccentric shaft 611 by way of Electronic control The angle of rotation, to adjust on feed dog frame 41 to preset angle.

Further, operating assembly 62 includes electric control element 621 and transmission component 622, and transmission component 622 is set to automatically controlled Between element 621 and eccentric shaft 611, electric control element 621 adjusts eccentric shaft by transmission component 622 by way of Electronic control 611 deflection angle, to adjust the angle and height of feed dog 413.

Transmission component 622 includes the worm screw 6221 being set on 621 output shaft of electric control element and is set in eccentric shaft 611 Worm gear 6222 in concentric segments 6111, worm screw 6221 are fixedly connected with the output shaft of electric control element 621, worm gear 6222 and eccentric shaft 611 concentric segments 6111 are fixedly connected, rotation mutually the nibbling by worm screw 6221 and worm gear 6222 of 621 output shaft of electric control element It closes, drives worm gear 6222 to turn to preset angle, due to being fixedly connected between worm gear 6222 and eccentric shaft 611, worm gear 6222 rotation will drive the rotation of eccentric shaft 611, to realize the adjusting to feed dog 413 angle and height.

Further, worm screw 6221 is fixed on the output shaft of electric control element 621 by screw in compression；Worm gear 6222 passes through Screw in compression is fixed in the concentric segments 6111 of eccentric shaft 611.

The groove (not labeled) being radially recessed is offered on the output shaft of electric control element 621, screw passes through worm gear 6222 It is held at the bottom wall of groove afterwards, by opening up groove, the rotation of 621 output shaft of electric control element is able to drive 6222 turns of worm gear It is dynamic.

In present embodiment, since the central axes of 621 output shaft of electric control element and the central axes of eccentric shaft 611 are mutually hung down Directly, therefore the central axes of worm screw 6221 and the central axes of worm gear 6222 are also mutually perpendicular to.It is appreciated that in other embodiments In, when the central axes of the central axes of 621 output shaft of electric control element and eccentric shaft 611 are deflected to other angles, worm screw 6221 Central axes and the central axes of worm gear 6222 can also form other angles, such as are coaxially disposed and also may be used.

Certainly, worm gear 6222 is also fixed in concentric segments 6111 using other fixed forms in addition to screw in compression, Worm screw 6221 can also can also be fixed on electric control element 621 using other fixed forms in addition to screw in compression；Only Will the fixed form can be realized being reliably connected for worm screw 6221 and worm gear 6222.

Overedger 100 provided by the utility model, the side of Worm Wheel System must be used by being not intended to limit transmission component 622 Formula；In other implementations, transmission component 622 can also be other kinds of using V belt translation, rack-and-pinion, shaft coupling etc. The kind of drive；When electric control element 621, which is not necessarily to, can directly drive eccentric shaft 611 to rotate by transmission component 622, transmission component 622 also can be omitted.

The rotation of electric control element 621 will drive the rotation of worm gear 6222, and it is inclined that the rotation of worm gear 6222 will drive eccentric shaft 611 again Heart rotation, the eccentric rotary of eccentric shaft 611 will drive the adjusting slider 612 being rotatablely connected with eccentric shaft 611 again and occur first Position change on direction, to realize the angle and height adjustment to feed dog frame 41.

In present embodiment, electric control element 621 is motor.It is appreciated that in other implementations, electric control element 621 also could alternatively be in addition to motor other be driven by electricity element.As long as this, which is driven by electricity element, can be realized electronic control System.

In an embodiment of the utility model, electric control element 621 is screwed in shell 10 by a fixing seat 623 Electric control element 621 is fixed on the side of shell 10 also by being screwed between fixing seat 623 and electric control element 621 by side Face can be convenient for the dismounting and adjusting of electric control element 621.

Certainly, in other implementations, between electric control element 621 and fixing seat 623, fixing seat 623 and shell 10 The modes such as the solid, riveting of glue can also be used to be fixed to each other；Electric control element 621 can also be fixed on shell 10 using other structures On, fixing seat 623 can be omitted at this time.

In an embodiment of the utility model, adjusting component 61 further includes axle sleeve 613, and axle sleeve 613 is arranged bias The concentric segments 6111 of axis 611 and it is fixed on the housing 10, axle sleeve 613 provides eccentric shaft 611 for carrying eccentric shaft 611 Stable rotation environment.Axle sleeve 613 has many advantages, such as anticorrosive, at low cost, the work condition environment preferably to slowly run.

Further, axle sleeve 613 is copper sheathing.It is appreciated that in other implementations, casing can also use copper removal Except other materials be made；Under the working condition requirement for not considering cost and slowly running, axle sleeve 613 can also be using rolling Bearing.

In an embodiment of the utility model, the two sides of casing are respectively arranged first retaining ring 614, and two One retaining ring 614 is oppositely arranged on the both ends of axle sleeve 613, and the first retaining ring 614 is used for position of the fixed hub 613 on eccentric shaft 611 It sets, avoids casing that positional shift occurs because of vibration.

Further, the first retaining ring 614 is fixed in the concentric segments 6111 of eccentric shaft 611 by the way of screw in compression. Certainly, the first retaining ring 614 can also use the other modes such as the solid, riveting of glue to be fixed on eccentric shaft 611, as long as the first retaining ring 614 can be firmly secured in the concentric segments 6111 of eccentric shaft 611；Copper sheathing can also be realized using other elements The limit of itself, the first retaining ring 614 can be omitted at this time.

In an embodiment of the utility model, the two sides of adjusting slider 612 are respectively arranged second retaining ring 615, two the second retaining rings 615 are oppositely arranged on the two sides of adjusting slider 612, and are sequentially set in partially with adjusting slider 612 On the eccentric segment 6112 of mandrel 611, the second retaining ring 615 is used for position of the secured adjusted sliding block 612 on eccentric shaft 611, avoids Adjusting slider 612 offsets out sliding groove 418 because of vibration.

Further, the second retaining ring 615 is fixed on the eccentric segment 6112 of eccentric shaft 611 by the way of screw in compression. Certainly, the second retaining ring 615 can also use the other modes such as the solid, riveting of glue to be fixed on eccentric shaft 611, as long as the second retaining ring 615 can be firmly secured on the eccentric segment 2 of eccentric shaft 611；Adjusting slider 612 can also using other elements come Realize the limit of itself, the second retaining ring 615 can be omitted at this time.

Angle and height that overedger 100 adjusts feed dog frame 41 by feed dog frame regulating mechanism 60 are illustrated below, it is real Now adapt to the principle of different thickness degree clothes.

When Level Change occurs under adjusting of the one end of feed dog frame 41 in feed dog frame regulating mechanism 60, feed dog frame 41 whole inclination angles change, and the change of 41 overall inclination angle of feed dog frame can change inclination angle namely the active tooth of feed dog 413 4131 is concordant from horizontal concordant oblique angle of changing into differential tooth 4132, due to active tooth 4131 with differential tooth 4132 respectively with difference Elliptical orbit work feed, angle tilt bring Level Change can change the sewing efficiency of head between the two.

Also referring to Figure 15 a to Figure 15 c, Figure 15 a is principle signal when feed dog frame 41 is in common working condition Figure, Figure 15 b are schematic illustration when feed dog frame 41 is in thick material working condition, and Figure 15 c is that feed dog frame 41 is in thin material Schematic illustration when working condition.In figure, sign S indicates the elliptical trajectory of active tooth 4131 and differential tooth 4132, V table Show corner cut direction when active tooth 4131 and differential tooth 4132 cut out working face, F indicates active tooth 4131 and differential tooth 4132 To the elastic force direction of cloth.

(1) when feed dog frame 41 is in common working condition: feed dog frame 41 does not tilt, active tooth 4131 and differential tooth 4132 is horizontal concordant, and the contact cloth synchronous with differential tooth 4132 of active tooth 4131, active tooth 4131 and differential tooth 4132 are made at this time Corner cut direction when the direction of elastic force F for cloth and active tooth 4131 cut out working face with differential tooth 4132 is identical, For vertical direction, this state is suitable for sewing to process the moderate cloth of general thickness, hardness.

(2) when feed dog frame 41 is in thick material working condition: feed dog frame 41 tilts, so that the height of active tooth 4131 is low In the height of differential tooth 4132, the direction for the elastic force F that active tooth 4131 acts on cloth with differential tooth 4132 at this time still keeps perpendicular Histogram to, but corner cut direction when active tooth 4131 and differential tooth 4132 cut out working face no longer keeps vertical direction, and It is that work feed is carried out in a manner of beveling；

Since the height of active tooth 4131 is lower than the height of differential tooth 4132, differential tooth 4132 rises prior to active tooth 4131 To cloth is contacted above needle plate and in advance, the work feed efficiency of differential tooth 4132 is higher than the work feed efficiency of active tooth 4131, therefore main With differential tooth 4132 when conveying cloth, differential tooth 4132 relative to active tooth 4131 there is dynamic tooth 4131 certain pursuit to imitate Fruit forms the promotion effect to cloth, so that multilayer, stalk seam uniform thickness material work feed are smooth, needle gage is uniform, and sewing quality is more preferably.

(3) when feed dog frame 41 is in thin material working condition: feed dog frame 41 tilts, so that the height of active tooth 4131 is high In the height of differential tooth 4132, the direction for the elastic force F that active tooth 4131 acts on cloth with differential tooth 4132 at this time still keeps perpendicular Histogram is to but corner cut direction when active tooth 4131 and differential tooth 4132 cut out working face no longer keeps vertical direction, main Dynamic tooth 4131 carries out work feed with differential tooth 4132 in a manner of beveling；

Since the height of active tooth 4131 is higher than the height of differential tooth 4132, active tooth 4131 rises prior to differential tooth 4132 Cloth is contacted to the top of needle plate 13 and in advance, and the work feed efficiency of active tooth 4131 is higher than the work feed efficiency of differential tooth 4132, therefore When conveying cloth, active tooth 4131 has certain separate effect relative to differential tooth 4132 for active tooth 4131 and differential tooth 4132 Fruit forms the dilatory effect to cloth, so that the smooth not fold of the thin material such as grenadine, sewing quality is more preferably.

For convenient for work feed, in addition to the feed dog frame regulating mechanism 60 for needing to act on cloth, being in contact with cloth lower surface, Foot pressure regulating mechanism is needed to adjust jointly simultaneously, foot pressure regulating mechanism acts on cloth, connects with cloth upper surface Touching.

The synchronous regulation mechanism of a kind of foot pressure and feed dog frame inclination angle that an embodiment of the present invention provides, including Foot pressure regulating mechanism 70 and feed dog frame regulating mechanism 50 incline for adjusting foot pressure and feed dog frame 41 respectively Angle, to cooperate work feed, wherein feed dog frame regulating mechanism 50 is as it was noted above, foot pressure regulating mechanism 70 such as Figure 16-Figure 22 It is shown, comprising: force-applying piece 73, the driving mechanism 74 for driving the force-applying piece 73 to be axially moved along it；It is living with the force-applying piece 73 The manual adjustment 76 of dynamic connection；Keep the locking piece of relative position between the manual adjustment 76 and the force-applying piece 73 77；Act on the elastic conducting power part 78 between the manual adjustment 76 and pressure foot 34.In the present embodiment, for changing presser feet The foot pressure regulating mechanism 70 of pressure between plate 34 and needle plate 13 is applied on overedger, wherein needle plate 13 sets for level It sets and height remains unchanged, the component at least vertical 13 direction of needle plate of direction of exerting pressure.

Pressure size between pressure foot 34 and needle plate 13 is influenced by elastic conducting power part 78, and elastic conducting power part 78 is being pressed Pressure is passed into pressure foot 34 in the state of contracting or elongation.The compressive state of elastic conducting power part 78 passes through manual adjustment 76 It is adjusted.When manual adjustment 76 pushes, elastic conducting power part 78 is compressed, and the pressure between pressure foot 34 and needle plate 13 increases Add；When timing on manual adjustment 76, elastic conducting power part 78 extends, and the pressure between pressure foot 34 and needle plate 13 reduces.

The pushing or up-regulation of manual adjustment 76 have automatically and manually both of which.Wherein, manual mode mainly leads to Cross the relative position that operator manually controls manual adjustment 76.Automatic mode passes through the force added and be driven the driving of mechanism 74 Part 73 is to control the relative position of manual adjustment 76.

In automatic mode, force-applying piece 73 and manual adjustment 76 are whole, and driving mechanism 74 drives force-applying piece 73 to move When, force-applying piece 73 drives 76 height and position of manual adjustment to change, to make and manual adjustment 76 along its axial movement The connected compression of elastic conducting power part 78 is extended to change the pressure between pressure foot 34 and needle plate 13.In the present embodiment, it applies Power part 73 generally cylindrical, " its axial direction " refers to the axis direction of cylindric force-applying piece 73.It is appreciated that reach control The purpose of pressure between pressure foot 34 and needle plate 13 processed, force-applying piece 73 can be used other irregular shapes, be able to achieve and pass through The direction of motion of force-applying piece 73 is controlled to adjust the pressure between pressure foot 34 and needle plate 13, comes under improvement of the invention Main points.

In a manual mode, force-applying piece 73 keeps height and position constant, and manual adjustment 76 is relative to force-applying piece 73 along pressure Sole 34 changes relative position to the direction of exerting pressure of needle plate 13.It can be movable relatively between force-applying piece 73 and manual adjustment 76, from And the elastic conducting power part 78 being connected with manual adjustment 76 is made to compress or extend to change the pressure between pressure foot 34 and needle plate 13 Power.

Further, it after with respect to force-applying piece 73 change in location occurs for manual adjustment 76, is locked with locking piece 77 to keep The relative position of manual adjustment 76 and force-applying piece 73, to keep the pressure between pressure foot 34 and needle plate 13 constant.

Overedger controls the pressure between pressure foot 34 and needle plate 13 before sewing, through manual mode manual adjustment, produces Raw pretightning force；When overedger is during sewing, and sewing fabric is stitched by the thin perhaps appearance stalk that thickens or is thinning by thickness, lead to The pressure that automatic mode adjusts pressure foot 34 Yu needle plate 13 in real time is crossed, reaches 34 real-time matching different-thickness fabric of pressure foot, makes Overedger sews smooth, the phenomenon that improving stitching uneven, fabric fold when fabric is crossed thicker than stalk.

To realize 34 real-time matching different-thickness fabric of pressure foot, foot pressure adjusts machine in one of the embodiments, Structure 70 further includes the Hall detection apparatus 742 that opposite needle plate 13 was fixedly mounted, detected the thickness of cloth on needle plate 13, the Hall Detection device 742 and the driving mechanism 74 are communicated to connect to send detection data.

It is appreciated that for the automatic mode for realizing the pressure for adjusting pressure foot 34 and needle plate 13 in real time, foot pressure is adjusted Mechanism 70 has additional Hall detection apparatus 742, the thickness of cloth on real-time detection needle plate 13, and sends the thickness comprising cloth Detection data sends electric signal to driving mechanism 74 to control circuit board, then by control circuit board, and then force-applying piece 73 is driven to transport The dynamic pressure to adjust pressure foot 34 Yu needle plate 13 in real time.Specifically, Hall detection apparatus 742 is linear Hall detection device.

For the synchronous adjustment for realizing foot pressure and feed dog frame inclination angle, 742 real-time detection needle plate 13 of Hall detection apparatus After the thickness of upper cloth, also accordingly the detection data of the thickness comprising cloth is sent out to control circuit board, then by control circuit board Electric signals adjust foot pressure feed dog frame inclination angle 41 according to the thickness of cloth to electric control element 621, to realize in real time.

The driving mechanism 74 is stepper motor 741, the stepper motor 741 and force-applying piece in one of the embodiments, It is linked between 73 by transmission mechanism 75, the transmission mechanism 75 includes:

Worm screw 751 is connected in the output shaft 7411 of the stepper motor 741,

Transmission arm 752, the transmission arm 752 are swung around a fixed axis, and one end of the transmission arm 752 has and the snail The other end of the driving cog 7521 that bar 751 is meshed, the transmission arm 752 is connected with force-applying piece 73.

It is appreciated that the output shaft 7411 of stepper motor 741 is equipped with worm screw 751, stepper motor 741 passes through output shaft 7411 rotate driving worm screw 751 is rotated about axis, and worm screw 751 is meshed with the driving cog 7521 of 752 one end of transmission arm, states biography The other end of swing arm 752 is connected with force-applying piece 73.

The worm screw 751 of rotation drives the end of engagement of transmission arm 752 to rise or fall.The transmission arm 752 passes through fixed pin shaft 753 fix on the housing 10, and transmission arm 752 is swung around the fixed axis where fixed pin shaft 753, wherein 753 phase of fixed pin shaft When in for pivot, there is a fixed axis.When the worm screw 751 of rotation drives the end of engagement of transmission arm 752 to rise, transmission arm 752 other end decline, and then force-applying piece 73 is driven to decline；When the worm screw 751 of rotation drives the end of engagement decline of transmission arm 752 When, the other end of transmission arm 752 rises, and then force-applying piece 73 is driven to rise.

The structural schematic diagram of transmission arm 752 as shown in figure 22 in one of the embodiments,.The transmission arm 752 The other end offers strip-shaped hole 7522, by being threaded through in strip-shaped hole 7522 between the force-applying piece 73 and the transmission arm 752 Pin shaft 754 be rotatablely connected.

It is appreciated that for the other end linkage force-applying piece 73 for realizing transmission arm 752, the other end and force of transmission arm 752 Part 73 is connected by pin shaft 754, and when transmission arm 752 is swung around fixed axis, the motion profile of the other end of transmission arm 752 is circle The motion profile of shape, force-applying piece 73 discharges its other party by opening up strip-shaped hole 7522 in the other end of transmission arm 752 for straight line To unnecessary traction, so that pin shaft 754 is generated relative displacement in strip-shaped hole 7522 to keep force-applying piece 73 always along straight line side To movement.More specifically, to be connected convenient for transmission arm 752 with force-applying piece 73, the other end of transmission arm 752 is equipped with one and is used for Connect the accommodation groove 7523 of force-applying piece 73.

The force-applying piece 73 is inner screw sheath in one of the embodiments, and the manual adjustment 76 is threaded through interior spiral shell In line set, and it is threadedly engaged between inner screw sheath.

It is appreciated that manual adjustment 76 and being threaded through in inner screw sheath, 76 periphery of manual adjustment is equipped with external screw thread.Packet Seam machine before sewing, inner screw sheath with respect to shell 10 be fixedly mounted, by rotary manual regulating part 76, manual adjustment 76 with it is interior Thread bush generates rotation, to adjust pressure foot 34 to the pressure of needle plate 13.Overedger during sewing, inner screw sheath and manually Regulating part 76 be threadedly engaged it is relatively fixed, inner screw sheath under the drive of driving mechanism 74, drive manual adjustment 76 generate phase Variation to position.

The outer wall of the inner screw sheath is fixed with connection handle 731 in one of the embodiments, and the pin shaft 754 is worn On the connection handle 731.It is described convenient for inner screw sheath is connected with the other end of transmission arm 752 by adding connection handle 731 Pin shaft 754 passes through connection handle 731, and in the strip-shaped hole 7522 of 752 other end of transmission arm.

Specifically, the other end of transmission arm 752 is equipped with the accommodation groove 7523 for accommodating the connection handle 731, realizes transmission arm 752 It is preferably connect between inner screw sheath and linkage.

The locking piece 77 is locking nut in one of the embodiments, and the locking nut is mounted on described manual It offsets on regulating part 76 and with inner screw sheath axial end face.

It is appreciated that locking nut is matched with the external screw thread of manual adjustment 76.In the pressure for manually adjusting pressure foot 34 Before power, by unscrewing locking nut and manual adjustment 76, by rotary manual regulating part 76, compression or stretching-elastic conducting The pressure of pressure foot 34 is adjusted to part.

Specifically, the manual adjustment 76 is rod-shaped, convenient to cooperate with locking nut.

The periphery of the manual adjustment 76 has a limited step 761, elastic conducting power part in one of the embodiments, 78 one end offsets with pressure foot 34, and the other end of elastic conducting power part 78 is socketed on the manual adjustment 76, and with it is described Limited step 761 offsets.The limited step 761 that the periphery of manual adjustment 76 is equipped with facilitates positioning elastic to lead power part 78, and benefit Elastic conducting power part 78 is forced in passing through manual adjustment 76.

In one embodiment, the elastic conducting power part 78 is helical spring.Described helical spring one end and pressure foot 34 offset, and the helical spring other end is socketed on the manual adjustment 76 and offsets with the limited step 761.In other implementations In example, elastic conducting power part 78 can also using can the elastic component that deformation occurs, such as rubber, air cushion or other kinds of spring.

Foot pressure regulating mechanism 70 further includes being in tilted layout with needle plate 13 to guide pressure in one of the embodiments, The compression bar set 79 in direction, the inner screw sheath, the elastic conducting power part 78 are set in compression bar set 79, the manual adjustment 76 Compression bar set 79 is stretched out at top, and the locking nut is mounted on the position that manual adjustment 76 stretches out compression bar set 79.Compression bar covers 79 pairs Inner screw sheath, elastic conducting power part 78 play protection fixed function, and ensure that direction of exerting pressure.

Correspondingly, shell 10 is equipped with the strut kong for accommodating compression bar set 79, and compression bar set 79 is through the fixed peace of strut kong Loaded on shell, such as can be fixed in such a way that glue bonds.The axis direction and needle plate 13 of compression bar set 79 are at certain Tilt angle.

Specifically, compression bar set 79 includes upperpush rod set 791 and intermediate sleeve 792, and upperpush rod set 791 is set in inner screw sheath Periphery, and upperpush rod covers 791 peripheries and is equipped with one and first opens for connection handle 731 from what upperpush rod covered that 791 interior penetrate Mouth 7911, and first opening 7911 covers in 791 axial directions in upperpush rod with the width moved for connection handle 731.

It is equipped between the elastic conducting power part 78 and pressure foot 34 by elastic conducting power part 78 in one of the embodiments, Pressure conduction is to the connector 71 of pressure foot 34, and the connector 71 is towards 78 end of elastic conducting power part with a positioning step, bullet Property leads power part 78 and is socketed in 71 periphery of connector and offsets with positioning step.Specifically, down-pressed pole is equipped in 71 periphery of connector Set 793, the position for the part 71 that is located to connect.

Foot pressure regulating mechanism 70 further includes controlling the presser feet that pressure foot 34 moves to lift in one of the embodiments, Bar 72, by forcing in presser feet raising wire 72 so that pressure foot 34 is far from needle plate 13, convenient for by the cloth on needle plate 13 from presser feet It is detached under plate 34.

Specifically, 71 periphery of connector is equipped with a stress protrusion 711, and presser feet raising wire 72 is abutted against with stress protrusion 711. Presser feet raising wire 72 is swung around a fixed pivot, and presser feet raising wire 72 is in force, with raised 711 phase separations of stress to incite somebody to action Pressure foot 34 lifts.Presser feet raising wire 72 has one handle far from raised 711 ends of stress, presses handle, and presser feet raising wire 72 leans on Nearly raised 711 ends of stress will upwarp, and drive stress protrusion 711 to move upwards, and then drive the pressure foot being connected with connector 71 34 rise.Wherein, hinged mode can be used between presser feet raising wire 72 and stress protrusion 711, or lean.

Correspondingly, the pushing rod set 793 for being set in 71 periphery of connector is offered to be opened for stress protrusion 711 perforative second Mouth 7931, and second opening 7931 has the width moved for stress protrusion 711 on pushing 793 axial direction of rod set.

The synchronous regulation mechanism of the utility model offer foot pressure and feed dog frame inclination angle, wherein feed dog frame is adjusted Mechanism 60 can adjust inclination angle and the height of feed dog frame 41, enable feed dog frame 41 according to the thickness journey of different clothes Degree changes feed dog 413 to the feeding state of cloth；Foot pressure regulating mechanism 70, manual control is manual before overedger sews The relative position of regulating part 76, to adjust the pressure between pressure foot 34 and needle plate 13, during overedger sewing, according to seam The thickness of fabric processed, the height and position of automatic real-time control manual adjustment 76 is to adjust the pressure between pressure foot 34 and needle plate 13 Power.

Different-thickness fabric is matched with the overseam function of the synchronous regulation mechanism at feed dog frame inclination angle using the foot pressure, The phenomenon that sewing overedger when fabric is crossed thicker than stalk smooth, improving uneven stitching, fabric fold, sewing quality mentioned simultaneously Height, the capability improving of machine system flexible manufacturing, is with a wide range of applications.

Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (10)

1. the synchronous regulation mechanism of a kind of foot pressure and feed dog frame inclination angle, including foot pressure regulating mechanism and feed dog Frame regulating mechanism, for adjusting foot pressure and feed dog frame inclination angle respectively, to cooperate work feed, which is characterized in that the pressure Foot pressure regulating mechanism includes:

Force-applying piece；

The driving mechanism for driving the force-applying piece to be axially moved along it；

The manual adjustment being flexibly connected with the force-applying piece；

Keep the locking piece of relative position between the manual adjustment and the force-applying piece；

Act on the elastic conducting power part between the manual adjustment and presser feet；

The feed dog frame regulating mechanism includes adjusting component and operating assembly；

The adjusting component includes adjusting slider and eccentric shaft, and the adjusting slider is embedded in the feed dog frame and being capable of phase The feed dog frame is slided, the eccentric shaft has concentric segments and is connected to the eccentric segment of the concentric segments, the eccentric shaft Eccentric segment wear the adjusting slider and be rotatably assorted with the adjusting slider；

The operating assembly includes electric control element, and the concentric segments of the eccentric shaft are connected to the electric control element, the automatically controlled member Part is controlled the eccentric shaft turns by way of Electronic control and the adjusting slider is driven to adjust inclining for the feed dog frame Angle and height.

2. the synchronous regulation mechanism of foot pressure as described in claim 1 and feed dog frame inclination angle, which is characterized in that described to send Feed dog is provided on cloth retainer, the feed dog frame includes active feed dog frame and differential cloth-feeding retainer, the feed dog packet The differential tooth for including the active tooth being set on the active feed dog frame and being set on the differential cloth-feeding retainer, it is described to send Cloth retainer regulating mechanism adjusts inclination angle and the height of the feed dog frame, so that the active tooth is higher than in thin material processing status The differential tooth is lower than the differential tooth when thickness expects processing status, concordant with the differential tooth in common process state.

3. the synchronous regulation mechanism of foot pressure as described in claim 1 and feed dog frame inclination angle, which is characterized in that the behaviour It further include transmission component as component, the transmission component is set between the concentric segments of the eccentric shaft and the electric control element, The electric control element drives the eccentric shaft turns by the transmission component.

4. the synchronous regulation mechanism of foot pressure as claimed in claim 3 and feed dog frame inclination angle, which is characterized in that the biography Dynamic component includes worm gear and worm screw, and the worm gear set is set to the concentric segments of the eccentric shaft, and the worm set is set to described automatically controlled On the output shaft of element, the engagement rotation between the worm gear and the worm screw drives the eccentric shaft turns.

5. the synchronous regulation mechanism of foot pressure as described in claim 1 and feed dog frame inclination angle, which is characterized in that the drive Motivation structure is stepper motor, is linked between the stepper motor and force-applying piece by transmission mechanism, and the transmission mechanism includes:

Worm screw is connected in the output shaft of the stepper motor,

Transmission arm, the transmission arm are swung around a fixed axis, and one end of the transmission arm has the biography being meshed with the worm screw The other end of movable tooth, the transmission arm is connected with force-applying piece.

6. the synchronous regulation mechanism of foot pressure as claimed in claim 5 and feed dog frame inclination angle, which is characterized in that the biography The other end of swing arm offers strip-shaped hole, is connected between the force-applying piece and the transmission arm by the pin shaft being threaded through in strip-shaped hole It connects.

7. the synchronous regulation mechanism of foot pressure as claimed in claim 6 and feed dog frame inclination angle, which is characterized in that described to apply Power part is inner screw sheath, and the manual adjustment is threaded through in inner screw sheath, and is threadedly engaged between inner screw sheath.

8. the synchronous regulation mechanism of foot pressure as claimed in claim 7 and feed dog frame inclination angle, which is characterized in that the lock Determining part is locking nut, and the locking nut is mounted on the manual adjustment and offsets with inner screw sheath axial end face.

9. the synchronous regulation mechanism of foot pressure as claimed in claim 8 and feed dog frame inclination angle, which is characterized in that further include It being in tilted layout with needle plate to guide the compression bar set of direction of exerting pressure, the inner screw sheath, the elastic conducting power part are set in compression bar set, Compression bar set is stretched out at the top of the manual adjustment, and the locking nut is mounted on the position that manual adjustment stretches out compression bar set.

10. the synchronous regulation mechanism of foot pressure as described in claim 1 and feed dog frame inclination angle, which is characterized in that also wrap Presser feet raising wire is included, is equipped with the pressure conduction of elastic conducting power part between the elastic conducting power part and presser feet to the connection of presser feet Part, the presser feet raising wire are abutted with the connector.