CN209602778U - Sewing machine - Google Patents

Abstract

The utility model provides a kind of sewing machine, comprising: pedestal；Shaft, shaft are pivotally disposed on pedestal；Driving gear, driving gear are set in shaft；Wherein, shaft includes the first shaft part and the second shaft part being detachably connected, and driving gear is set in first axle section, by the first shaft part and driving gear by disassembling on the second shaft part, is replaced to driving gear.The driving gear for driving rotating shuttle to rotate that the utility model solves sewing machine in the prior art replaces time-consuming and laborious, the problem for causing the after-sales service of sewing machine very difficult.

Description

Sewing machine

Technical field

The utility model relates to technical field of sewing machines, in particular to a kind of sewing machine.

Background technique

Sewing machine in the prior art drives driving gear rotation by shaft, and driving gear drives rotating shuttle to rotate again, In In the long-term use process of sewing machine, wired mao of meeting enters inside sewing machine and generates accumulation inside sewing machine, leads to active The problem of gear is worn, and bouncing pilotage or broken string occurs so as to cause sewing machine.

In order to solve the problems, such as that driving gear is worn, the mode for generalling use replacement driving gear in the prior art is solved Certainly, but the structure setting of sewing machine in the prior art is unreasonable, when replacing driving gear, needs first be connected with the rotating shaft it He removes component, could come out shaft withdrawing, then replace the driving gear being set in shaft, in this way, driving gear is more It changes time-consuming and laborious, causes the after-sales service of sewing machine very difficult.

Utility model content

The main purpose of the utility model is to provide one kind, to solve revolving for driving for sewing machine in the prior art The driving gear of shuttle rotation replaces time-consuming and laborious, the problem for causing the after-sales service of sewing machine very difficult.

To achieve the goals above, the utility model provides a kind of sewing machine, comprising: pedestal；Shaft, shaft are pivotable Ground is set on the base；Driving gear, driving gear are set in shaft；Wherein, shaft includes the first axle being detachably connected Section and the second shaft part, driving gear is set in first axle section, by the first shaft part and driving gear by dismantling on the second shaft part Get off, driving gear is replaced.

Further, sewing machine further include: shaft coupling, the first shaft part and the second shaft part are removably connected by shaft coupling It connects.

Further, sewing machine further include: the first transmission gear, the first transmission gear be set on the first shaft part and with master The setting of moving gear interval；Second transmission gear, the second transmission gear are set on the second shaft part and engage with the first transmission gear.

Further, sewing machine further include: the first drive pulley, the first drive pulley be set on the first shaft part and with master The setting of moving gear interval；Second drive pulley, the second drive pulley are set on the second shaft part；First transmission belt, the first transmission Band covers on the first drive pulley and the second drive pulley.

Further, sewing machine further include: drive shaft, drive shaft and shaft are arranged in parallel and are located at the top of shaft；The One driving wheel and the second driving wheel, the first driving wheel tube are set on the driving shaft, and the second driving wheel tube is located on the second shaft part；Second Transmission belt, the second transmission belt are set on the first driving wheel and the second driving wheel；Driving motor, driving motor and drive shaft drive Connection.

Further, sewing machine further include: driven gear, driven gear are engaged with driving gear, and driven gear has peace Fill hole；Connecting shaft, connecting shaft are mounted at mounting hole；Rotating shuttle, rotating shuttle are arranged in connecting shaft；So that shaft drives driving gear It rotates synchronously, driving gear drives driven gear rotation, and driven gear drives connecting shaft and rotating shuttle to rotate synchronously.

Further, driving gear and driven gear are helical gear, and the axis of shaft is horizontally extending, connecting shaft Axis extend along the vertical direction.

Further, driving gear, driven gear, connecting shaft and rotating shuttle are two, and two driving gears are along first axle Section is set in axially-spacedly on the first shaft part；Two driven gears are engaged with two driving gears correspondingly, and two A connecting shaft is arranged in a one-to-one correspondence with two driven gears, and two rotating shuttles are arranged in a one-to-one correspondence with two connecting shafts.

Further, sewing machine further include: feeding tooth, feeding tooth are removably disposed on the first shaft part and are located at two Between driving gear.

Further, pedestal includes: bottom plate；Rotating shuttle frame, rotating shuttle frame are mounted on bottom plate, and driving gear passes through the first shaft part It is pivotally disposed on rotating shuttle frame, driven gear is pivotally disposed on rotating shuttle frame by connecting shaft.

Using the technical solution of the utility model, the first shaft part being detachably connected and the second shaft part are set by shaft, Driving gear is set in first axle section, when needing to replace driving gear after driving gear abrasion, it is only necessary to will Then first shaft part and driving gear are again replaced driving gear by disassembling on the second shaft part.The application's Sewing machine keeps the replacement of driving gear time saving and energy saving, improves the after-sales service of sewing machine just by the structure of optimization shaft Victory.

Detailed description of the invention

The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model. In the accompanying drawings:

Fig. 1 shows a kind of partial structure diagram of the sewing machine of alternative embodiment according to the present utility model；

Fig. 2 shows the disassemblying structure schematic diagrames of the sewing machine including bottom plate, rotating shuttle frame and rotating shuttle.

Wherein, the above drawings include the following reference numerals:

10, pedestal；11, bottom plate；12, rotating shuttle frame；20, shaft；21, the first shaft part；22, the second shaft part；30, driving tooth Wheel；40, shaft coupling；50, driven gear；51, mounting hole；60, connecting shaft；70, rotating shuttle；80, drive shaft；90, the first driving wheel； 100, the second driving wheel；110, the second transmission belt；120, feeding tooth；130, eccentric ratio；140, belt wheel.

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 It clearly and completely describes, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities Apply example.Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as practical new to this Type and its application or any restrictions used.Based on the embodiments of the present invention, those of ordinary skill in the art are not having Every other embodiment obtained under the premise of creative work is made, is fallen within the protection scope of the utility model.

In order to which the driving gear replacement for driving rotating shuttle to rotate for solving sewing machine in the prior art is time-consuming and laborious, lead The problem for causing the after-sales service of sewing machine very difficult, the utility model provide a kind of sewing machine.

As depicted in figs. 1 and 2, sewing machine includes pedestal 10, shaft 20 and driving gear 30, and shaft 20 is pivotally arranged On pedestal 10, driving gear 30 is set in shaft 20；Wherein, shaft 20 includes the first shaft part 21 for being detachably connected and the Two shaft parts 22, driving gear 30 are set on the first shaft part 21, by the first shaft part 21 and driving gear 30 by the second shaft part 22 On disassemble, driving gear 30 is replaced.

In this application, the first shaft part 21 being detachably connected and the second shaft part 22 are set by shaft 20, by driving tooth Wheel 30 is set on the first shaft part 21, when needing to replace driving gear 30 after the abrasion of driving gear 30, it is only necessary to will First shaft part 21 on the second shaft part 22 by disassembling, and driving gear 30 can be disassembled with the first shaft part 21, then Driving gear 30 replaces driving gear 30 by disassembling on the first shaft part 21 again.The sewing machine of the application By optimizing the structure of shaft 20, keeps the replacement of driving gear 30 time saving and energy saving, improve the convenient of the after-sales service of sewing machine Property.

Optionally, driving gear 30 is removably disposed on the first shaft part 21.

Optionally, driving gear 30 is connect by connecting key with the first shaft part 21.

As shown in Figure 1, sewing machine further includes that shaft coupling 40, the first shaft part 21 and the second shaft part 22 are removable by shaft coupling 40 It connects with unloading.In this way, the first shaft part 21 and the second shaft part 22 transmit power and torque by shaft coupling 40, needing to driving tooth When wheel 30 is replaced, the first shaft part 21 connecting with shaft coupling 40 is disassembled.

The shaft coupling 40 of standardization in the prior art, model can be selected, it is only necessary to make shaft coupling 40, the first shaft part 21 It is adapted with the size of the second shaft part 22, has the advantages that facilitate buying.

Optionally, shaft coupling 40 is flange-face coupling.Flange-face coupling has the advantages that structure is simply and at low cost.Ability The technical staff in domain can also select other kinds of shaft coupling 40.

In the embodiment (not shown) of the application, sewing machine further includes the first transmission gear and the second driving cog Wheel, the first transmission gear, which is set on the first shaft part 21 and is spaced with driving gear 30, to be arranged, and the second transmission gear is set in the It is engaged on two shaft parts 22 and with the first transmission gear.In this way, the setting position of the first shaft part 21 and the second shaft part 22 can be flexible Selection, the second shaft part 22 drive the rotation of the second transmission gear, and the second transmission gear drives the rotation of the first transmission gear, the first transmission Gear drives first axle section 21 and driving gear 30 to rotate synchronously.

In another embodiment (not shown) of the application, sewing machine further includes the first drive pulley, the second transmission belt Wheel and the first transmission belt, the first drive pulley, which is set on the first shaft part 21 and is spaced with driving gear 30, to be arranged, the second transmission Belt wheel is set on the second shaft part 22, and the first transmission belt covers on the first drive pulley and the second drive pulley.In this way, first axle The setting position of section 21 and the second shaft part 22 can drive the rotation of the second drive pulley with flexible choice, the second shaft part 22, and second passes Movable belt pulley drives the rotation of the first drive pulley by the first transmission belt, and the first drive pulley drives the first shaft part 21 and driving gear 30 rotate synchronously.

As shown in Figure 1, sewing machine further includes drive shaft 80, the first driving wheel 90, the second driving wheel 100, the second transmission belt 110 and driving motor, drive shaft 80 and shaft 20 are arranged in parallel and are located at the top of shaft 20, and the first driving wheel 90 is set in drive On moving axis 80, the second driving wheel 100 is set on the second shaft part 22, and the second transmission belt 110 is set in the first driving wheel 90 and On two driving wheels 100, driving motor and drive shaft 80 are drivingly connected.In this way, driving motor driving drive shaft 80 rotates, drive shaft 80 drive the rotation of the first driving wheel 90, and the first driving wheel 90 drives the rotation of the second driving wheel 100 by the second transmission belt 110, the Two driving wheels 100 drive the rotation of the second shaft part 22.By the way that transmission mechanism is arranged, the position of driving motor can be set more flexiblely It sets, rational deployment is carried out to the internal structure of sewing machine.

As depicted in figs. 1 and 2, sewing machine further includes driven gear 50, connecting shaft 60 and rotating shuttle 70, driven gear 50 and main Moving gear 30 engages, and driven gear 50 has mounting hole 51, and connecting shaft 60 is mounted at mounting hole 51, and the setting of rotating shuttle 70 is connecting On axis 60；So that shaft 20 drives driving gear 30 to rotate synchronously, driving gear 30 drives driven gear 50 to rotate, driven gear 50 drive connecting shaft 60 and rotating shuttle 70 to rotate synchronously.In this way, driving gear 30 drives driven gear 50 to rotate, 50 turns of driven gear Move and drive connecting shaft 60 and rotating shuttle 70 to rotate, sewing machine utilizes one or more sewing thread, by 70 hooking of rotating shuttle on sewing One or more stitchings are formed, one or more layers sewing is made to interweave or unite by a seam.Due to prolonged drive motion, driving tooth Wheel 30 and driven gear 50 are easy to produce abrasion, and the application is improved by the structure of optimization shaft 20 to driving gear 30 The convenience replaced with driven gear 50, has reached time saving and energy saving technical effect.

As shown in Figure 1, driving gear 30 and driven gear 50 are helical gear, the axis of shaft 20 prolongs in the horizontal direction It stretches, the axis of connecting shaft 60 extends along the vertical direction.In this way, changing the rotation direction of rotating shuttle 70 by two helical gear engagements.

Optionally, sewing machine is flush joint double needle machine.

As shown in Figure 1, driving gear 30, driven gear 50, connecting shaft 60 and rotating shuttle 70 are two, two driving gears 30 are set on the first shaft part 21 axially-spacedly along the first shaft part 21；Two driven gears 50 correspondingly with two Driving gear 30 engages, and two connecting shafts 60 are arranged in a one-to-one correspondence with two driven gears 50, and two rotating shuttles 70 are connect with two Axis 60 is arranged in a one-to-one correspondence.In this way, driving two rotating shuttles 70 to rotate by the first shaft part 21.

As shown in Figure 1, sewing machine further includes feeding tooth 120, feeding tooth 120 is removably disposed on the first shaft part 21 simultaneously Between two driving gears 30.In this way, when needing to replace driving gear 30 and driven gear 50, it is only necessary to join The screw of axis device 40 eases out and removes feeding tooth 120.

As shown in Figure 1, sewing machine further includes eccentric ratio 130 and belt wheel 140, eccentric ratio 130 and belt wheel 140 are respectively provided with On the second shaft part 22, in this way, when needing to replace driving gear 30 and driven gear 50, due to not having to disassembly second Shaft part 22, so that it may without eccentric ratio 130 and belt wheel 140 by removing on the second shaft part 22, are sewed to be conducive to be promoted The maintenance efficiency of machine.

As shown in Fig. 2, pedestal 10 includes bottom plate 11 and rotating shuttle frame 12, rotating shuttle frame 12 is mounted on bottom plate 11, driving gear 30 are pivotally disposed on rotating shuttle frame 12 by the first shaft part 21, and driven gear 50 is pivotally disposed at by connecting shaft 60 On rotating shuttle frame 12.

Due to the phenomenon that revolving speed is high and driving gear 30 is made to be also easy to produce abrasion for the accumulation of outer lines hair, jump sewing machine When there is hot problem in driving gear 30 when the problem of needle, broken string or sewing machine dispatch from the factory, sewing function provided by the present application It is enough that more easily driving gear 30 is replaced.After shaft 20 to be split as to the first shaft part 21 and the second shaft part 22, also can Enough facilitate the assembly of shaft 20 on pedestal 10, the assembling process of sewing machine is made to become simple.

It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.

Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments Up to the unlimited the scope of the utility model processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each shown in attached drawing The size of a part is not to draw according to actual proportionate relationship.For skill known to person of ordinary skill in the relevant Art, method and apparatus may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as awarding Weigh part of specification.In shown here and discussion all examples, any occurrence should be construed as merely example Property, not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar Label and letter similar terms are indicated in following attached drawing, therefore, once be defined in a certain Xiang Yi attached drawing, then with In attached drawing afterwards do not need that it is further discussed.

In the description of the present invention, it should be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally, Vertically, vertically, it is horizontal " and " pushing up, bottom " etc. indicated by orientation or positional relationship be normally based on orientation or position shown in the drawings Relationship is set, is merely for convenience of describing the present invention and simplifying the description, in the absence of explanation to the contrary, these nouns of locality Do not indicate that and imply that signified device or element must have a particular orientation or be constructed and operated in a specific orientation, because This should not be understood as the limitation to scope of protection of the utility model；The noun of locality " inside and outside " refers to the wheel relative to each component itself Wide is inside and outside.

For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ", " ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction " Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and " in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and And respective explanations are made to the opposite description in space used herein above.

In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this The limitation of utility model protection range.

It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet Include " when, indicate existing characteristics, step, work, device, component and/or their combination.

It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, " Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way Data be interchangeable under appropriate circumstances, so that presently filed embodiment described herein can be in addition to illustrating herein Or the sequence other than those of description is implemented.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of sewing machine characterized by comprising

Pedestal (10)；

Shaft (20), the shaft (20) are pivotally disposed on the pedestal (10)；

Driving gear (30), the driving gear (30) are set on the shaft (20)；

Wherein, the shaft (20) includes the first shaft part (21) and the second shaft part (22) being detachably connected, the driving gear (30) it is set on first shaft part (21), by first shaft part (21) and the driving gear (30) by described second Shaft part disassembles on (22), replaces to the driving gear (30).

2. sewing machine according to claim 1, which is characterized in that the sewing machine further include:

Shaft coupling (40), first shaft part (21) and second shaft part (22) are removably connected by the shaft coupling (40) It connects.

3. sewing machine according to claim 1, which is characterized in that the sewing machine further include:

First transmission gear, first transmission gear be set on first shaft part (21) and with the driving gear (30) Interval setting；

Second transmission gear, second transmission gear be set on second shaft part (22) and with first transmission gear Engagement.

4. sewing machine according to claim 1, which is characterized in that the sewing machine further include:

First drive pulley, first drive pulley be set on first shaft part (21) and with the driving gear (30) Interval setting；

Second drive pulley, second drive pulley are set on second shaft part (22)；

First transmission belt, first transmission belt cover on first drive pulley and the second drive pulley.

5. sewing machine according to any one of claim 1 to 4, which is characterized in that the sewing machine further include:

Drive shaft (80), the drive shaft (80) and the shaft (20) are arranged in parallel and are located at the top of the shaft (20)；

First driving wheel (90) and the second driving wheel (100), first driving wheel (90) are set on the drive shaft (80), Second driving wheel (100) is set on second shaft part (22)；

Second transmission belt (110), second transmission belt (110) are set in first driving wheel (90) and second transmission It takes turns on (100)；

Driving motor, the driving motor and the drive shaft (80) are drivingly connected.

6. sewing machine according to any one of claim 1 to 4, which is characterized in that the sewing machine further include:

Driven gear (50), the driven gear (50) are engaged with the driving gear (30), and the driven gear (50) has Mounting hole (51)；

Connecting shaft (60), the connecting shaft (60) are mounted at the mounting hole (51)；

Rotating shuttle (70), the rotating shuttle (70) are arranged on the connecting shaft (60)；So that the shaft (20) drives the active Gear (30) rotates synchronously, and the driving gear (30) drives driven gear (50) rotation, driven gear (50) band It moves the connecting shaft (60) and the rotating shuttle (70) rotates synchronously.

7. sewing machine according to claim 6, which is characterized in that the driving gear (30) and the driven gear (50) It is helical gear, the axis of the shaft (20) is horizontally extending, and the axis of the connecting shaft (60) prolongs along the vertical direction It stretches.

8. sewing machine according to claim 6, which is characterized in that the driving gear (30), the driven gear (50), The connecting shaft (60) and the rotating shuttle (70) are two, and two driving gears (30) are along first shaft part (21) It is set on first shaft part (21) axially-spacedly；Two driven gears (50) are correspondingly and described in two Driving gear (30) engagement, two connecting shafts (60) are arranged in a one-to-one correspondence with two driven gears (50), two institutes Rotating shuttle (70) is stated to be arranged in a one-to-one correspondence with two connecting shafts (60).

9. sewing machine according to claim 8, which is characterized in that the sewing machine further include:

Feeding tooth (120), the feeding tooth (120) are removably disposed on first shaft part (21) and are located at described in two Between driving gear (30).

10. sewing machine according to claim 6, which is characterized in that the pedestal (10) includes:

Bottom plate (11)；

Rotating shuttle frame (12), the rotating shuttle frame (12) are mounted on the bottom plate (11), and the driving gear (30) passes through described the One shaft part (21) is pivotally disposed on the rotating shuttle frame (12), and the driven gear (50) can by the connecting shaft (60) It is pivotally arranged on the rotating shuttle frame (12).