CN209243333U - A kind of sewing machine - Google Patents
A kind of sewing machine Download PDFInfo
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- CN209243333U CN209243333U CN201822017292.6U CN201822017292U CN209243333U CN 209243333 U CN209243333 U CN 209243333U CN 201822017292 U CN201822017292 U CN 201822017292U CN 209243333 U CN209243333 U CN 209243333U
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- sewing machine
- transverse arm
- motor
- needle bar
- bar mechanism
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Abstract
The technical problems such as the utility model belongs to sewing device technical field, specially a kind of sewing machine, and which solve existing sewing machine vibrations is big, compactedness is poor, packed and transported cost is big.This sewing machine includes casing, casing includes the stand being arranged along the vertical direction and horizontally disposed transverse arm, the right end of transverse arm is fixedly connected with stand, and the left end of transverse arm is provided with needle bar mechanism, and the rotary driving source being connected with the needle bar mechanism is fixed in transverse arm.When sewing machine is run, the exportable torque of rotary driving source drives needle bar mechanism movement, realizes thorn material.Compared with prior art, by the Position Design of rotary driving source on transverse arm in the application, it can entire length on relative decrease sewing machine left and right directions, improve the complete machine compactedness of sewing machine, reduce cost when packaging and transport, and the center of gravity of sewing machine is closer to middle position, vibration and noise are smaller when operation.
Description
Technical field
The utility model belongs to sewing device technical field, specially a kind of sewing machine.
Background technique
With the continuous improvement of scientific and technological level, sewing machine also gradually realizes automation.Originally usually motor is set to
Lower section outside sewing machine and positioned at working top, and pass through belt connecting band sewing machine.But the mechanism makes because volume is excessive
It needs often to manipulate handwheel with hand when user operates, therefore typically now by design of electrical motor on the rear end face of head end, motor
One end of axis is connect with main shaft, and the other end is connect with handwheel.
As patent CN 202688662 U in China discloses a kind of flat seam machine of electric control integral structure, including machine
Head, the top of the cavity formed between head outer end face and head end cap are provided with the motor without shell, machine shaft
One end is connect with machine spindle, the handwheel on the outside of the other end and head end cap connects, on the medial surface of head end cap lower part
It is fixed with circuit board, motor and circuit board electrical connection.
Above scheme is compared with technology hanging under tradition, although space can be saved to a certain extent, motor is fixed
In the tail portion of head, the entire length for also resulting in sewing machine is lengthened, and destroys the overall compactness of sewing machine；And to sewing
During machine carries out packaging joint sealing, carton is also required to increase accordingly, and packing cost is higher, and due to volume in transportational process
Greatly, the expense of transport can also be increase accordingly.In addition, motor is fixed on the tail portion of head, so that the center of gravity of sewing machine complete machine moves back,
Vibration is easy to happen when motor operation, noise is larger.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of sewing machine, skill to be solved in the utility model
Art problem are as follows: how to improve the compactedness of sewing machine, the vibration and noise that motor generates when reducing sewing machine operation.
A kind of sewing machine, the sewing machine include casing, and the casing includes the stand being arranged along the vertical direction and edge
Horizontally arranged transverse arm, right end and the stand of the transverse arm are fixedly connected with, and the left end of the transverse arm is provided with needle bar mechanism,
It is characterized in that, the rotary driving source being connected with the needle bar mechanism is fixed in the transverse arm.
Its working principles are as follows: the exportable torque of rotary driving source drives needle bar mechanism movement when sewing machine is run, realize
Thorn material.Compared with prior art, in the application by the Position Design of rotary driving source on transverse arm, can relative decrease sewing machine it is left
Entire length in right direction improves the complete machine compactedness of sewing machine, reduces cost when packaging and transport, and the weight of sewing machine
The heart is closer to middle position, and vibration and noise are smaller when operation.
In a kind of above-mentioned sewing machine, the rotary driving source includes the motor being fixed in transverse arm, the motor
Output end is connected with the needle bar mechanism.Motor rotation can drive needle bar mechanism movement to realize thorn material.Rotary driving source is set
It is calculated as motor, the output end of motor is usually axis, and axial workpiece is easy there are various machining accuracy errors in fabrication design,
And axis can equally have similar installation accuracy error during installation；The motor of transmission sewing machine is installed on tail portion above stand,
Very remote with the needle bar mechanism distance of transverse arm left end, corresponding axis to be designed longer, axis vibration caused by all kinds of errors when rotating
Dynamic and noise can be amplified, and be generally only that three axle sleeves are designed on transverse arm for branch in the prior art in order to solve this problem
The axis is supportted, but the effect that the program rises is limited；And by the way that motor position to be designed on transverse arm in the design, electricity is effectively shortened
The distance between machine and needle bar mechanism, required axis is also shorter, and motor itself can also play similar existing sewing machine jackshaft
The supporting role of set can also be by saving axle sleeve to reduce cost while the vibration generated when axis rotation is effectively reduced and makes an uproar；
Further, since the transmission mechanism between mechanisms and motor such as the trimming of sewing machine, feeding is commonly designed on the stand of sewing machine,
Motor is located at the tail portion of stand in the prior art, and the motor after change is located on transverse arm, but equally apart from above-mentioned transmission mechanism position
Set it is not far, therefore mutually in requisition for axis it is also shorter, there is no sacrifice trimming, feeding to cater to the noise reduction of needle bar mechanism
The noise reduction effect of component.
In a kind of above-mentioned sewing machine, as a kind of scheme, the motor includes ontology and motor shaft, in the casing
Rotation is provided with left drive shaft and right transmission shaft, the both ends of the left drive shaft respectively with the left end of the motor shaft and shank
Mechanism is connected；The both ends of the right transmission shaft are connected with the right end of the motor shaft and sewing machine hand-wheel respectively.Due to
The assembly space of sewing machine is smaller, is designed as three axis forms of motor shaft, left drive shaft and right transmission shaft, facilitates adaptation all kinds of
Different casings and assembly space, and as corresponding axis can be individually replaced when damaging.
In a kind of above-mentioned sewing machine, the left end of the motor shaft and right end pass through shaft coupling and the Left Drive respectively
Axis is connected with right transmission shaft.
In a kind of above-mentioned sewing machine, alternatively, rotation is provided with main shaft, the motor in the casing
Including the stator and rotor matched, the stator is fixed on casing, and the main shaft passes through the rotor and the two is fixedly connected with, institute
The left end for stating main shaft is connected with the needle bar mechanism, and the right end of the main shaft is connected with sewing machine hand-wheel.Using main shaft as
The motor shaft of motor omits shaft coupling, it is ensured that the alignment and stability of power output are reduced because installation accuracy error generates
Noise and vibration.
In a kind of above-mentioned sewing machine, alternatively, rotation is provided with coaxial upper axis one in the casing
It is connected with the left end of upper axis two, the upper axis one with needle bar mechanism, the right end of the upper axis one and the left end of upper axis two are mutually solid
Even, the right end of the upper axis two is connected with sewing machine hand-wheel；The motor includes the stator and rotor matched, the stator
It is fixed on casing, the upper axis one or upper axis two are fixedly connected with the rotor.
In a kind of above-mentioned sewing machine, the rotary driving source is located at the middle part of the transverse arm.By design of electrical motor in cross
In the middle part of arm, noise reduction effect is more preferably.
Compared with prior art, the utility model has the advantage of
1, compared with prior art, in the application by the Position Design of rotary driving source on transverse arm, can relative decrease seam
The entire length threaded on machine left and right directions improves the complete machine compactedness of sewing machine, reduces cost when packaging and transport, and sew
The center of gravity of machine is closer to middle position, and vibration and noise are smaller when operation；
2, in the design by the way that motor position is designed on transverse arm, effectively shorten between motor and needle bar mechanism away from
From required axis is also shorter, and motor itself can also play the supporting role of axle sleeve among similar existing sewing machine, can effectively drop
The vibration and noise that low axis generates when rotating.
Detailed description of the invention
Fig. 1 is the axonometric drawing of this sewing machine in embodiment one
Fig. 2 is the connection figure of motor and needle bar mechanism and sewing machine hand-wheel in embodiment one
Fig. 3 is the attachment structure schematic diagram in embodiment one between motor and main shaft
Fig. 4 is the axonometric drawing of this sewing machine in embodiment two
Fig. 5 is the connection figure of motor and needle bar mechanism and sewing machine hand-wheel in embodiment two
Fig. 6 is the attachment structure schematic diagram in embodiment three between motor and upper axis two
In figure, 1, casing；2, stand；3, transverse arm；4, needle bar mechanism；5, rotary driving source；6, motor；7, motor shaft；8,
Left drive shaft；9, right transmission shaft；10, sewing machine hand-wheel；11, shaft coupling；12, main shaft；13, stator；14, rotor；15, upper axis
One；16, upper axis two；17, needle bar crank；18, screw.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description.
Embodiment one:
As shown in Figure 1, Figure 2, Figure 3 shows, this sewing machine includes casing 1, casing 1 include the stand 2 that is arranged along the vertical direction with
And horizontally disposed transverse arm 3, right end and the stand 2 of transverse arm 3 are fixedly connected with, the left end of transverse arm 3 is provided with needle bar mechanism 4,
The rotary driving source 5 being connected with the needle bar mechanism 4 is fixed in transverse arm 3.Preferably, rotary driving source 5 is located at transverse arm 3
Middle part.Wherein, stand 2 and transverse arm 3 can both use integrally formed structure, can also be used it is split type then by fastener or
The mode of welding carries out connected.The design of 2 generally vertical direction of stand, but the shape of stand 2 is not limited to shape described in figure
Shape is designed to rectangular, arc, the mode with inclined-plane, so-called to be arranged along the vertical direction, do not imply that have to
Sewing machine table is perpendicular, but extends along general sewing machine short transverse.Equally, transverse arm 3 designs in the horizontal direction, and
It is not to say to have to be parallel to the horizontal plane, may refer to probably extend transversely.In the present embodiment, 3 part of transverse arm preferably refers to
The reason of part of a in Fig. 1 certainly changes the works such as 3 length of transverse arm or section, indicates in Fig. 1 be by its with it is vertical
Seat 2 distinguishes, and refers not to have to shape and length as shown in Figure 1.
In the present embodiment, rotary driving source 5 includes the motor 6 being fixed in transverse arm 3, the output end and needle bar machine of motor 6
Structure 4 is connected.
Preferably, being provided with main shaft 12 as shown in figure 3, rotating in casing 1, motor 6 includes 13 He of stator matched
Rotor 14, stator 13 are fixed on casing 1, and main shaft 12 passes through the rotor 14 and the two is fixedly connected with, the left end of main shaft 12 and shank
Mechanism 4 is connected, and the right end of main shaft 12 is connected with sewing machine hand-wheel 10.Needle bar mechanism 4 includes needle bar crank 17, a left side for main shaft
End is connected with the needle bar crank 17.From there as can be seen that needle bar mechanism 4 includes more part, needle bar crank 17 can be
The connection type of one of part, main shaft 12 and needle bar mechanism 4 is not limited to be directly connected to, such as by other driving members
All kinds of modes such as connecting rod, crank or eccentric wheel.The fixed form of rotor 14 and main shaft 12, can be each by screw, keyway etc.
Class mode, in addition assembly space allow in the case where, using unitary design can also, do not limited specifically herein.
It should be noted that stator 13 can be both directly fixed on casing 1, motor 6 at this time is mostly shellless motor；This
Outside, motor 6 has been also designed to shell motor, and stator 13 is designed on electric machine casing, then solid by screw 18 or other means
Due on the casing 1 of sewing machine.And rotary driving source 5 is other than being designed as motor 6, other exportable torques drive main shafts 12
The driving source of rotation.
Embodiment two:
The present embodiment is roughly the same with embodiment one, the difference is that, as shown in Figure 4, Figure 5, in the present embodiment, motor
6 include ontology and motor shaft 7, and rotation is provided with left drive shaft 8 and right transmission shaft 9, the both ends difference of left drive shaft 8 in casing 1
It is connected with the left end of motor shaft 7 and needle bar mechanism 4；The both ends of right transmission shaft 9 respectively with the right end of motor shaft 7 and sewing
Machine handwheel 10 is connected.Preferably, the left end of motor shaft 7 and right end pass through shaft coupling 11 and left biography respectively in the present embodiment
Moving axis 8 is connected with right transmission shaft 9.Certainly, above-mentioned three is attached by all kinds of modes such as keyway, screw.
Embodiment three:
The present embodiment is roughly the same with embodiment one, the difference is that, in the present embodiment, as shown in fig. 6, in casing 1
Rotation is provided with coaxial upper axis 1 and upper axis 2 16, and the left end of upper axis 1 is connected with needle bar mechanism 4, upper axis 1
The left end of right end and upper axis 2 16 is fixedly connected with, and the right end of upper axis 2 16 is connected with sewing machine hand-wheel 10；Motor 6 includes matching
Stator 13 and rotor 14, stator 13 is fixed on casing 1, and upper axis 1 or upper axis 2 16 are fixedly connected with the rotor 14.This reality
It applies in example, rotor 14 is preferably connected with upper axis 2 16, and connection type between the two both can be by shaft coupling 11, can also
It is fixed by modes such as keyway, screws.
Compared with prior art, in the application by the Position Design of rotary driving source 5 on transverse arm 3, can relative decrease seam
The entire length threaded on machine left and right directions improves the complete machine compactedness of sewing machine, reduces cost when packaging and transport, and sew
The center of gravity of machine is closer to middle position, length needed for axis when reducing transmission, and vibration and noise are smaller when operation.
Specific embodiment described herein is only to give an example to the utility model.The affiliated skill of the utility model
The technical staff in art field can make various modifications or additions to the described embodiments or using similar side
Formula substitution, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although 1, casing is used more herein；2, stand；3, transverse arm；4, needle bar mechanism；5, rotary driving source；6, electric
Machine；7, motor shaft；8, left drive shaft；9, right transmission shaft；10, sewing machine hand-wheel；11, shaft coupling；12, main shaft；13, stator；14,
Rotor；15, upper axis one；16, upper axis two；17, needle bar crank；18, screw etc., but the possibility using other terms is not precluded
Property.The use of these terms is merely for the convenience of describing and explaining the nature of the invention；It is construed as any
The additional limitation of one kind is all contrary to the spirit of the present invention.
Claims (7)
1. a kind of sewing machine, the sewing machine includes casing (1), and the casing (1) includes the stand (2) being arranged along the vertical direction
And horizontally disposed transverse arm (3), right end and the stand (2) of the transverse arm (3) are fixedly connected with, a left side for the transverse arm (3)
End is provided with needle bar mechanism (4), which is characterized in that is fixed with the rotation being connected with the needle bar mechanism (4) in the transverse arm (3)
Driving source (5).
2. sewing machine according to claim 1, which is characterized in that the rotary driving source (5) includes being fixed on transverse arm (3)
The output end of interior motor (6), the motor (6) is connected with the needle bar mechanism (4).
3. sewing machine according to claim 2, which is characterized in that the motor (6) includes ontology and motor shaft (7), institute
State rotation in casing (1) and be provided with left drive shaft (8) and right transmission shaft (9), the both ends of the left drive shaft (8) respectively with it is described
The left end of motor shaft (7) and needle bar mechanism (4) are connected；The both ends of the right transmission shaft (9) respectively with the motor shaft (7)
Right end and sewing machine hand-wheel (10) be connected.
4. sewing machine according to claim 3, which is characterized in that the left end of the motor shaft (7) and right end pass through respectively
Shaft coupling (11) is connected with the left drive shaft (8) and right transmission shaft (9).
5. sewing machine according to claim 2, which is characterized in that rotation is provided with main shaft (12), institute in the casing (1)
Stating motor (6) includes the stator (13) and rotor (14) matched, and the stator (13) is fixed on casing (1), the main shaft
(12) it passes through the rotor (14) and the two is fixedly connected with, the left end of the main shaft (12) is connected with the needle bar mechanism (4), described
The right end of main shaft (12) is connected with sewing machine hand-wheel (10).
6. sewing machine according to claim 2, which is characterized in that rotation is provided with coaxial upper axis in the casing (1)
The left end of one (15) and upper axis two (16), the upper axis one (15) is connected with needle bar mechanism (4), the right side of the upper axis one (15)
It holds and is fixedly connected with the left end of upper axis two (16), the right end of the upper axis two (16) is connected with sewing machine hand-wheel (10)；The electricity
Machine (6) includes the stator (13) and rotor (14) matched, and the stator (13) is fixed on casing (1), the upper axis one
(15) or upper axis two (16) is fixedly connected with the rotor (14).
7. sewing machine according to claim 1 or 2 or 3 or 4 or 5 or 6, which is characterized in that rotary driving source (5) position
In the middle part of the transverse arm (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822017292.6U CN209243333U (en) | 2018-12-03 | 2018-12-03 | A kind of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822017292.6U CN209243333U (en) | 2018-12-03 | 2018-12-03 | A kind of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209243333U true CN209243333U (en) | 2019-08-13 |
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ID=67531185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822017292.6U Active CN209243333U (en) | 2018-12-03 | 2018-12-03 | A kind of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209243333U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109355819A (en) * | 2018-12-03 | 2019-02-19 | 林燕飞 | A kind of sewing machine |
-
2018
- 2018-12-03 CN CN201822017292.6U patent/CN209243333U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109355819A (en) * | 2018-12-03 | 2019-02-19 | 林燕飞 | A kind of sewing machine |
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