CN110983662A - Cloth-needling mechanism and sewing equipment with same - Google Patents
Cloth-needling mechanism and sewing equipment with same Download PDFInfo
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- CN110983662A CN110983662A CN201911337803.5A CN201911337803A CN110983662A CN 110983662 A CN110983662 A CN 110983662A CN 201911337803 A CN201911337803 A CN 201911337803A CN 110983662 A CN110983662 A CN 110983662A
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- adjusting
- needle bar
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- shaft
- fixed shaft
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B55/00—Needle holders; Needle bars
- D05B55/14—Needle-bar drives
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a cloth pricking mechanism, which comprises a needle rod crank; a needle bar connecting rod; the needle bar connecting rod is rotatably connected with the fixed shaft; the adjusting component is fixedly connected with the fixed shaft and movably connected with the needle rod crank so as to adjust the center distance between the fixed shaft and a main shaft hole of the needle rod crank through the movement of the adjusting component relative to the needle rod crank; a locking member detachably connected with the needle bar crank for locking or unlocking the adjusting assembly. This thorn cloth mechanism is through changing the relative needle bar crank's of adjusting part position, and adjustment fixed axle position makes the center-to-center distance of fixed axle and the last main shaft hole of needle bar crank change, reaches the purpose of adjusting the needle bar stroke, makes this thorn cloth mechanism general in thin material and thick material sewing, need not when the thin thick material switches, changes different needle bar cranks, need not to switch parts, convenient and fast. The invention also discloses sewing equipment comprising the cloth pricking mechanism.
Description
Technical Field
The invention relates to the technical field of sewing equipment, in particular to a cloth pricking mechanism. In addition, the invention also relates to sewing equipment comprising the cloth pricking mechanism.
Background
As an elbow type cylinder type lap-joint sewing machine, a wrist bending machine is widely used in the production of clothes such as men's wear, women's wear, casual wear, jeans, shirts, work clothes, raincoats, and the like.
In the prior art, a needle bar crank and a needle bar connecting rod are generally included in a needle bar mechanism of a wrist bending machine, the needle bar connecting rod is rotatably connected with the needle bar crank through a needle bar connecting rod pin and a needle bearing, a needle bar connecting shaft is arranged at one end of the needle bar connecting rod, which is far away from the needle bar connecting rod pin, a needle bar is fixed on the needle bar connecting shaft, the needle bar crank is fixed on an upper shaft, and the upper shaft drives the needle bar crank to rotate when rotating, so that the needle bar is driven to.
At present, two needle bar cranks are adopted on a cloth pricking mechanism of a wrist bending machine, one is the needle bar crank used for sewing thin materials, and the other is the needle bar crank used for sewing thick materials.
However, the two needle bar cranks are not easy to distinguish and are easy to be confused when being installed, and the phenomenon of wrong installation often occurs; moreover, when the machine is switched between sewing thin materials and thick materials, different needle rod cranks need to be replaced, so that the machine is inconvenient to disassemble and assemble and has large workload.
In summary, how to provide a general cloth-needling mechanism for thin and thick materials is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a cloth-needling mechanism, which is suitable for both thin material sewing and thick material sewing, and has convenient operation without changing different needle bar cranks.
Another object of the present invention is to provide a sewing machine comprising the above-mentioned cloth-stabbing mechanism.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides a thorn cloth mechanism, includes needle bar crank and needle bar connecting rod, still includes:
the needle bar connecting rod is rotatably connected with the fixed shaft;
the adjusting component is fixedly connected with the fixed shaft and movably connected with the needle rod crank so as to adjust the center distance between the fixed shaft and a main shaft hole of the needle rod crank through the movement of the adjusting component relative to the needle rod crank;
and the locking piece is detachably connected with the needle bar crank so as to lock or release the adjusting assembly.
Preferably, the adjusting assembly comprises an adjusting block fixedly connected with the fixed shaft, and the needle rod crank is provided with a sliding groove in sliding fit with the adjusting block.
Preferably, the adjusting assembly further comprises an adjusting screw in threaded connection with the needle rod crank, and a limiting part for driving the adjusting block to slide along the sliding groove in the rotating process of the adjusting screw is arranged at the head of the adjusting screw.
Preferably, the limiting part is an annular boss protruding radially from the head part, the adjusting block is provided with a clamping groove used for being clamped with the annular boss, and the annular boss is connected with the clamping groove in a sliding fit manner;
or the limiting part comprises two annular flanges which radially protrude out of the head part, the two annular flanges are arranged in parallel, the adjusting block is provided with a sliding part clamped between the two annular flanges, and the sliding part is connected with the two annular flanges in a clearance sliding fit manner.
Preferably, the locker comprises:
a shim for contacting the set block to laterally compress the set block;
and the locking screw is used for applying pressing force to the gasket and is in threaded connection with the needle rod crank.
Preferably, one end of the fixed shaft is in threaded connection with a limit screw for preventing the needle bar connecting rod from being separated from the fixed shaft.
Preferably, the adjusting component comprises an adjusting shaft fixedly connected with the fixing shaft, the adjusting shaft is eccentrically arranged with the fixing shaft, and the needle rod crank is provided with a pin hole for rotationally connecting with the adjusting shaft.
Preferably, one end of the fixed shaft, which is far away from the adjusting shaft, is provided with a limit baffle for preventing the needle bar connecting rod from being separated from the fixed shaft, and the limit baffle is provided with a tool mounting hole for facilitating the insertion of a tool to rotate the adjusting shaft.
Preferably, the adjusting shaft is provided with a fastening plane corresponding to the positions where the eccentric amount of the fixing shaft is minimum and the eccentric amount is maximum, the locking piece is a fastening screw used for pressing the fastening plane, and the fastening screw is in threaded connection with the crank of the needle rod.
A sewing device comprises a cloth-pricking mechanism, wherein the cloth-pricking mechanism is any one of the cloth-pricking mechanisms.
The cloth pricking mechanism provided by the invention can drive the position adjustment of the fixed shaft by changing the position of the adjusting component relative to the needle rod crank, so that the center distance between the fixed shaft and the main shaft hole on the needle rod crank is changed, and the purpose of adjusting the stroke of the needle rod is further achieved, and the cloth pricking mechanism can be used for sewing thin materials and thick materials, so that the universality of the cloth pricking mechanism is improved, and different needle rod cranks do not need to be replaced when the thin materials and the thick materials are switched, so that the parts do not need to be disassembled and switched, and the cloth pricking mechanism is convenient and quick to switch between sewing the thin materials and the thick materials.
The sewing equipment provided by the invention comprises the cloth pricking mechanism, and has the beneficial effects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a cloth pricking mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;
FIG. 3 is an exploded view of FIG. 1;
FIG. 4 is a schematic view of a connection structure of the adjusting screw and the adjusting block in FIG. 1;
FIG. 5 is a schematic view of the structure of FIG. 1 showing the spacer and the adjusting block being pressed together when the locking screw is locked;
fig. 6 is a schematic structural diagram of a cloth pricking mechanism according to another embodiment of the present invention.
The reference numerals in fig. 1 to 6 are as follows:
1 is a needle bar crank, 11 is a sliding groove, 12 is a pin hole, 13 is an adjusting threaded hole, 14 is a fastening threaded hole, 2 is a needle bar connecting rod, 3 is a fixed shaft, 31 is a limit baffle, 4 is an adjusting block, 5 is an adjusting screw, 51 is a limit part, 61 is a gasket, 62 is a locking screw, 7 is a limit screw, 8 is an adjusting shaft, 81 is a fastening plane, and 9 is a needle bearing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the invention is to provide a cloth-needling mechanism which is suitable for sewing thin materials and thick materials, does not need to replace different needle rod cranks and is convenient to operate. Another core of the present invention is to provide a sewing machine including a cloth-piercing mechanism.
Referring to fig. 1-6, fig. 1 is a schematic structural diagram of a cloth pricking mechanism according to an embodiment of the present invention; FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective; FIG. 3 is an exploded view of FIG. 1; FIG. 4 is a schematic view of a connection structure of the adjusting screw and the adjusting block in FIG. 1; FIG. 5 is a schematic view of the structure of FIG. 1 showing the spacer and the adjusting block being pressed together when the locking screw is locked; fig. 6 is a schematic structural diagram of a cloth pricking mechanism according to another embodiment of the present invention.
The invention provides a cloth pricking mechanism which comprises a needle bar crank 1, a needle bar connecting rod 2, a fixed shaft 3, an adjusting assembly and a locking piece.
Specifically, the fixed shaft 3 is used for mounting the needle bar connecting rod 2, and the needle bar connecting rod 2 is rotatably connected with the fixed shaft 3.
Preferably, the fixed shaft 3 is sleeved with a needle bearing 9, and the needle bar connecting rod 2 is sleeved on the outer periphery of the needle bearing 9, that is, the needle bar connecting rod 2 is rotatably connected with the fixed shaft 3 through the needle bearing 9.
The fixed shaft 3 is fixedly connected with the adjusting component which is movably connected with the needle rod crank 1.
That is, the fixing shaft 3 is movably disposed on the needle bar crank 1 through the adjusting assembly, so as to adjust the position of the fixing shaft 3 relative to the main shaft hole of the needle bar crank 1 through the movement of the adjusting assembly relative to the needle bar crank 1, thereby changing the center distance between the fixing shaft 3 and the main shaft hole, and adjusting the stroke of the needle bar.
It should be noted that the main shaft hole is used for installing an upper shaft, so that the needle rod crank 1 is fixedly connected with the upper shaft, and the needle rod crank 1 is driven to rotate by the upper shaft.
It can be understood that, after the position of the fixed shaft 3 is adjusted to the proper position, the adjusting component and the needle bar crank 1 need to be kept fixed, so that the position of the adjusting component is kept not to be loosened during the high-speed movement of the needle bar crank 1 along with the upper shaft, and the position of the fixed shaft 3 is prevented from changing during the operation of the needle bar crank 1.
Therefore, the present invention locks or unlocks the adjustment assembly by means of a locking member, which is detachably connected to the shank crank 1. When the locking piece is connected with the needle bar crank 1 in place, the adjusting component is locked; the adjustment assembly can be released when the locking element is removed from the shank crank 1.
Therefore, the cloth pricking mechanism provided by the invention can drive the position of the fixed shaft 3 to be adjusted by changing the position of the adjusting component relative to the needle rod crank 1, so that the center distance between the fixed shaft 3 and the main shaft hole on the needle rod crank 1 is changed, and the purpose of adjusting the stroke of the needle rod is further achieved, so that the cloth pricking mechanism can be used for sewing thin materials and thick materials, the universality of the cloth pricking mechanism is improved, different needle rod cranks 1 do not need to be replaced when the thin materials and the thick materials are switched, and the switching parts do not need to be disassembled and assembled, so that the cloth pricking mechanism is convenient and quick to switch between sewing thin materials and thick materials.
In view of the realization of the specific structure of the adjusting assembly, on the basis of the above embodiment, the adjusting assembly comprises the adjusting block 4 fixedly connected with the fixed shaft 3, and the needle bar crank 1 is provided with the sliding groove 11 in sliding fit with the adjusting block 4.
That is, the present embodiment realizes the adjustment of the fixed shaft 3 by the sliding of the adjusting block 4 and the sliding groove 11.
It can be understood that the sliding groove 11 is provided with an opening for yielding the fixed shaft 3, so as to realize the fixed connection between the fixed shaft 3 and the adjusting block 4 and the sliding of the fixed shaft 3 along with the adjusting block 4.
The concrete shapes of the sliding chute 11 and the adjusting block 4 are not limited in this embodiment, and preferably, the sliding chute 11 is a T-shaped groove to adapt to the overall shape of the adjusting block 4 and the fixed shaft 3 after being connected.
It should be noted that, the invention does not limit the specific connection mode of the fixing shaft 3 and the adjusting block 4, and the fixing shaft 3 and the adjusting block 4 can be an integral piece and are integrally formed; of course, the two parts may be separate parts, and the parts are fixedly connected by welding, bolting, etc. after being formed respectively.
In view of the convenience of adjusting the adjusting block 4, on the basis of the above embodiment, the adjusting assembly further includes an adjusting screw 5 in threaded connection with the needle bar crank 1, and a head of the adjusting screw 5 is provided with a limiting portion 51 for driving the adjusting block 4 to slide along the sliding groove 11 during the rotation of the adjusting screw 5.
That is, the present embodiment adjusts the position of the adjusting block 4 by the adjusting screw 5.
Specifically, set up on needle bar crank 1 and adjust screw hole 13, make adjust screw hole 13 and adjusting screw 5 threaded connection fixed, when the position of adjusting block 4 needs to be adjusted, only need to twist adjusting screw 5 soon, change adjusting screw 5 and the screw thread of adjusting screw hole 13 and close length soon, can make spacing portion 51 drive adjusting block 4 and slide along spout 11, and then change the position of fixed axle 3.
Preferably, the axis of the adjustment threaded hole 13 is vertically arranged, that is, the height position of the fixing shaft 3 can be directly adjusted by screwing the adjustment screw 5.
Further, when the adjusting screw 5 is fully screwed with the adjusting screw hole 13, the adjusting block 4 is preferably located at the lowest position corresponding to the minimum stroke of the needle bar.
It should be noted that the specific structure of the limiting portion 51 and the specific connection manner between the limiting portion 51 and the adjusting block 4 are not limited in this embodiment.
As a preferable solution, on the basis of the above embodiment, the limiting portion 51 may be two circular flanges protruding from the surface of the head portion of the adjusting screw 5 in the radial direction, the two circular flanges are arranged in parallel, the adjusting block 4 is provided with a sliding member sandwiched between the two circular flanges, the sliding member may be a sliding block, a ball, or a roller, and it is understood that the sliding member is connected with the gap between the two circular flanges in a sliding fit manner, so that the sliding member can slide between the two circular flanges when the circular flanges rotate along with the adjusting screw 5.
It should be noted that, in the preferred embodiment, the two circular flanges are engaged with the sliding member to form a limiting unit, and on this basis, the stability of the sliding of the adjusting block 4 can be ensured by providing a plurality of limiting units.
Of course, the following preferred scheme is also possible, the limiting part 51 is a circular boss protruding radially from the head of the adjusting screw 5, the adjusting block 4 is provided with a clamping groove for clamping the circular boss, and the circular boss is connected with the clamping groove in a sliding fit manner.
In the preferred embodiment, a circular boss is matched with the sliding groove 11 to form a limiting unit, and on the basis, the sliding stability of the adjusting block 4 can be improved by increasing the matching number of the circular bosses and the sliding groove 11.
In view of the simplicity of the specific structure of the locking member and the ease of implementation, on the basis of any of the above-described embodiments, the locking member includes a locking screw 62 and a spacer 61, the spacer 61 is adapted to contact the adjusting block 4 to laterally press the adjusting block 4, the locking screw 62 is adapted to apply a pressing force to the spacer 61, and the locking screw 62 is threadedly coupled to the shank crank 1.
That is, the needle bar crank 1 is provided with a locking screw hole, and the locking screw 62 is in fit connection with the locking screw hole, and preferably, the axis of the locking screw hole is perpendicular to the axis of the adjusting screw hole 13.
Further, locking screw 62 cooperates with washer 61 to compress the side of adjustment block 4 away from locking screw 62.
When the adjusting block 4 needs to be fixed, the locking screw 62 is tightened to press the gasket 61 into contact with the adjusting block 4, so that the adjusting block 4 is pressed and fixed.
When the position of the adjusting block 4 needs to be adjusted, the locking screw 62 is loosened, and the gasket 61 releases the pressure on the adjusting block 4.
In view of the stability of the connection of the needle bar link 2 with the fixed shaft 3, on the basis of the above-described embodiment, a limit screw 7 for preventing the needle bar link 2 from coming off the fixed shaft 3 is threadedly coupled to one end of the fixed shaft 3.
That is to say, the one end that the fixed axle 3 kept away from adjusting block 4 is equipped with spacing screw hole, and stop screw 7 is connected with spacing screw hole cooperation, and after the needle bar connecting rod 2 cover was located on fixed axle 3, screw up stop screw 7 with spacing screw hole, then utilize the head of stop screw 7 to inject needle bar connecting rod 2 on fixed axle 3, prevent that needle bar connecting rod 2 from breaking away from fixed axle 3 at the rotation in-process.
Considering another implementation manner of the adjusting assembly, as a preferred scheme, the adjusting assembly comprises an adjusting shaft 8 fixedly connected with the fixed shaft 3, the adjusting shaft 8 is eccentrically arranged with the fixed shaft 3, and the needle bar crank 1 is provided with a pin hole 12 for rotatably connecting with the adjusting shaft 8.
That is, the present embodiment changes the axial position of the fixed shaft 3 by the rotation of the adjustment shaft 8 in the pin hole 12, thereby changing the center distance between the fixed shaft 3 and the main shaft hole of the needle bar crank 1.
Because the adjusting shaft 8 and the fixed shaft 3 are eccentrically arranged, that is, the axes of the adjusting shaft 8 and the fixed shaft 3 are arranged in a non-collinear way, and the adjusting shaft 8 and the fixed shaft 3 form an eccentric pin, when the adjusting shaft 8 rotates in the pin hole 12, the fixed shaft 3 eccentrically rotates around the axis of the adjusting shaft 8, so that the position of the fixed shaft 3 is changed.
In view of the convenience of locking the adjusting shaft 8, on the basis of the above embodiment, the adjusting shaft 8 is provided with the fastening planes 81 corresponding to the positions where the eccentricity of the fixing shaft 3 is the minimum and the eccentricity is the maximum, the locking member is a fastening screw for pressing the fastening planes 81, and the fastening screw is in threaded connection with the needle bar crank 1.
That is, in the present embodiment, the end surface of the set screw abuts against the set flat surface 81, so that the set screw presses the set flat surface 81, thereby fixing the adjusting shaft 8 in the pin hole 12 and preventing the adjusting shaft 8 from loosening during the high-speed operation of the needle bar crank 1.
It can be understood that, in general, when sewing thin material and thick material, the maximum needle pitch and the minimum needle pitch of the needle bar correspond respectively, therefore, the present embodiment defines the two extreme positions of the adjusting shaft 8 by the two tightening planes 81, so that the two extreme positions of the fixing shaft 3 correspond respectively to the minimum stroke and the maximum stroke of the needle bar.
Specifically, the adjusting shaft 8 is rotated, and when the tightening plane 81 corresponding to the minimum eccentricity of the fixing shaft 3 is rotated to the tightening screw, the tightening screw is tightened, and at this time, the fixing shaft 3 corresponds to the minimum stroke of the needle bar. When the position of the fixed shaft 3 needs to be adjusted, the fastening screw is loosened, the adjusting shaft 8 is rotated, the fastening plane 81 corresponding to the fixed shaft 3 with the maximum eccentricity on the adjusting shaft 8 rotates to the fastening screw, the fastening screw is screwed, and at the moment, the fixed shaft 3 corresponds to the maximum stroke of the needle rod.
It should be noted that, the number of the set screws is not limited in the present invention, the number of the set screws is at least one, and preferably, a plurality of set threaded holes 14 may be formed in the needle bar crank 1 to lock the adjusting shaft 8 by a plurality of set screws at the same time, so that the adjusting shaft 8 is fixed more firmly and reliably.
It will be appreciated that the plurality of tightening screw holes 14 are arranged side by side along the axial direction of the pin hole 12 such that a plurality of tightening screws press the tightening plane 81 of the adjustment shaft 8 along the length direction of the tightening plane 81.
Similarly, in consideration of the stability of the connection of the needle bar connecting rod 2 and the fixed shaft 3, on the basis of the above-described embodiments, the end of the fixed shaft 3 remote from the adjusting shaft 8 is provided with the limit baffle 31 for preventing the needle bar connecting rod 2 from being detached from the fixed shaft 3, and the limit baffle 31 is provided with the tool mounting hole for facilitating the insertion of a tool to rotate the adjusting shaft 8.
That is, after the needle bar connecting rod 2 is sleeved on the fixing shaft 3, the adjusting shaft 8 is installed in the pin hole 12 of the needle bar crank 1, and at this time, the limit baffle 31 has a limit effect on the needle bar connecting rod 2, so as to prevent the needle bar connecting rod 2 from being separated from the fixing shaft 3 in the rotating process.
On the other hand, the limit baffle plate 31 is also convenient for applying a rotation torque to the adjusting shaft 8, so that when the position of the fixing shaft 3 needs to be adjusted, the limit baffle plate 31 drives the fixing shaft 3 and the adjusting shaft 8 to rotate at the same time by applying the rotation torque to the limit baffle plate 31, and the adjusting shaft 8 is limited to rotate in the pin hole 12 due to the mechanical limit function of the pin hole 12, so that the fixing shaft 3 is eccentrically rotated.
It should be noted that, the specific connection mode of the fixed shaft 3 and the adjusting shaft 8 and the fixed shaft 3 and the limiting baffle 31 is not limited, for example, the fixed shaft 3, the adjusting shaft 8 and the limiting baffle 31 may be an integral piece and are integrally formed; of course, the three parts can also be separated parts which are fixedly connected through welding, bolt connection and the like after being respectively formed.
Further, the tool mounting hole may be a straight-line-shaped sunken groove, a cross-shaped sunken groove, a hexagonal groove, or the like.
In addition to the above-mentioned cloth-stabbing mechanism, the present invention further provides a sewing device including the cloth-stabbing mechanism disclosed in the above-mentioned embodiments, and the structures of other parts of the sewing device refer to the prior art, which is not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The present invention provides a cloth-pricking mechanism and a sewing machine having the same. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a thorn cloth mechanism, includes needle bar crank (1) and needle bar connecting rod (2), its characterized in that still includes:
the needle bar connecting rod (2) is rotatably connected with the fixed shaft (3);
the adjusting component is fixedly connected with the fixed shaft (3) and movably connected with the needle rod crank (1) so as to adjust the center distance between the fixed shaft (3) and a main shaft hole of the needle rod crank (1) through the movement of the adjusting component relative to the needle rod crank (1);
the locking piece is detachably connected with the needle bar crank (1) to lock or release the adjusting component.
2. The cloth pricking mechanism according to claim 1, wherein the adjusting assembly comprises an adjusting block (4) fixedly connected with the fixed shaft (3), and the needle bar crank (1) is provided with a sliding groove (11) in sliding fit with the adjusting block (4).
3. The cloth pricking mechanism according to claim 2, wherein the adjusting assembly further comprises an adjusting screw (5) in threaded connection with the needle bar crank (1), and a limiting part (51) for driving the adjusting block (4) to slide along the sliding groove (11) in the rotating process of the adjusting screw (5) is arranged at the head of the adjusting screw (5).
4. The cloth pricking mechanism according to claim 3, wherein the limiting part (51) is an annular boss protruding radially from the head part, the adjusting block (4) is provided with a clamping groove for clamping the annular boss, and the annular boss is connected with the clamping groove in a sliding fit manner;
or the limiting part (51) comprises two circular-ring-shaped flanges which radially protrude out of the head part, the two circular-ring-shaped flanges are arranged in parallel, the adjusting block (4) is provided with a sliding piece which is clamped between the two circular-ring-shaped flanges, and the sliding piece is connected with the two circular-ring-shaped flanges in a clearance sliding fit mode.
5. The cloth pricking mechanism of any of claims 2 to 4, wherein the locking member comprises:
a shim (61) for contact with the adjusting block (4) to laterally compress the adjusting block (4);
a locking screw (62) for applying a pressing force to the spacer (61), the locking screw (62) being in threaded connection with the shank crank (1).
6. A cloth pricking mechanism according to claim 5, wherein one end of the fixed shaft (3) is threadedly connected with a limit screw (7) for preventing the needle bar connecting rod (2) from disengaging from the fixed shaft (3).
7. The cloth pricking mechanism according to claim 1, wherein the adjustment assembly comprises an adjustment shaft (8) fixedly connected to the fixed shaft (3), the adjustment shaft (8) being arranged eccentrically to the fixed shaft (3), and the needle bar crank (1) being provided with a pin hole (12) for rotational connection to the adjustment shaft (8).
8. The cloth pricking mechanism according to claim 7, wherein an end of the fixed shaft (3) remote from the adjusting shaft (8) is provided with a limit stop (31) for preventing the needle bar connecting rod (2) from disengaging from the fixed shaft (3), the limit stop (31) being provided with a tool mounting hole for facilitating insertion of a tool for rotating the adjusting shaft (8).
9. The cloth pricking mechanism according to claim 7 or 8, wherein the adjusting shaft (8) is provided with a tightening plane (81) at a position corresponding to the minimum eccentricity and the maximum eccentricity of the fixed shaft (3), respectively, and the locking member is a tightening screw for pressing the tightening plane (81), and the tightening screw is in threaded connection with the needle bar crank (1).
10. A sewing machine comprising a cloth-needling mechanism, characterized in that the cloth-needling mechanism is as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337803.5A CN110983662B (en) | 2019-12-23 | 2019-12-23 | Cloth-needling mechanism and sewing equipment with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337803.5A CN110983662B (en) | 2019-12-23 | 2019-12-23 | Cloth-needling mechanism and sewing equipment with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110983662A true CN110983662A (en) | 2020-04-10 |
| CN110983662B CN110983662B (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911337803.5A Active CN110983662B (en) | 2019-12-23 | 2019-12-23 | Cloth-needling mechanism and sewing equipment with same |
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| CN (1) | CN110983662B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112877928A (en) * | 2021-01-28 | 2021-06-01 | 星锐缝纫机(嘉兴)有限公司 | Sewing machine structure |
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| JPH04272265A (en) * | 1991-02-28 | 1992-09-29 | Barudan Co Ltd | Sewing machine |
| CN203878331U (en) * | 2014-05-30 | 2014-10-15 | 新杰克缝纫机股份有限公司 | Needle rod stroke regulating mechanism of overlock machine and overlock machine |
| CN204570206U (en) * | 2015-01-27 | 2015-08-19 | 浙江宝宇缝纫机有限公司 | A kind of needle bar stroke guiding mechanism and overlock machine |
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| CN110983662B (en) | 2021-10-29 |
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