CN107023736A - A kind of stiffness-adjustable frame foot pad - Google Patents
A kind of stiffness-adjustable frame foot pad Download PDFInfo
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- CN107023736A CN107023736A CN201710294400.1A CN201710294400A CN107023736A CN 107023736 A CN107023736 A CN 107023736A CN 201710294400 A CN201710294400 A CN 201710294400A CN 107023736 A CN107023736 A CN 107023736A
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- elastic component
- foot pad
- pressing plate
- elastic
- stiffness
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M7/00—Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The present invention relates to sewing machine technique field, more particularly to a kind of stiffness-adjustable frame foot pad, elastic supporting member for supporting optical member including the pressing plate for being connected with frame and resilient support pressing plate, elastic supporting member for supporting optical member includes the first elastic component and the second elastic component, and the first elastic component and the second elastic component relative dislocation nesting and spacing distance are adjustably located at the lower section of pressing plate.By adjusting the spacing distance between the first elastic component and the second elastic component, the rigidity of foot pad can be adjusted, realize the regulation of foot pad resonant frequency, so that the rigidity and resonant frequency of foot pad can reach the state with complete machine best match, therefore the quick optimal vibration damping rigidity for determining foot pad of debugging can be passed through, foot pad without changing plurality of specifications tests determination one by one, not only substantially increase research and development and debugging efficiency, and reduce the specification species of foot pad, with versatility is good, cost is low, it is simple in construction, debug convenient advantage, and the effect with vibration damping.
Description
Technical field
The present invention relates to sewing machine technique field, more particularly to a kind of stiffness-adjustable frame foot pad.
Background technology
Existing relatively large sewing machine, such as template machine and pattern sewing machine, using support foot of the pin cup as whole frame
Pad.Pin cup specification is various, and pin the cup all structure and rigidity with each self-retaining of every kind of specification, once specification selection is improper,
The rigidity of pin cup is mismatched with machine, it is possible to cause the resonant frequency of the working speed and pin cup of complete machine to approach, so as to lead
Cause complete machine oscillation very big, have a strong impact on the competitiveness of product.And a can be matched with complete machine, resonant frequency is found away from whole
The pin cup of machine working speed, can only by purchasing the pin cup of plurality of specifications, experiment just can determine that one by one, not only efficiency of research and development is very
Low, the pin cup finally determined may not also be matched most preferably with complete machine.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of rigidity and the adjustable frame foot pad of resonant frequency, to overcome
The drawbacks described above of prior art.
In order to solve the above-mentioned technical problem, the present invention is adopted the following technical scheme that：A kind of stiffness-adjustable frame foot pad, bag
Include pressing plate for being connected with frame and flexibly support the elastic supporting member for supporting optical member of pressing plate, elastic supporting member for supporting optical member include the first elastic component and
Second elastic component, the first elastic component and the second elastic component relative dislocation are nested and spacing distance is adjustably located under pressing plate
Side.
Preferably, the first elastic component and/or the second elastic component and pressing plate are detachably connected, and the first elastic component and/or
The direction that the link position of second elastic component and pressing plate can point to the second elastic component along the first elastic component is adjusted.
Preferably, the waist-shaped hole of multiple up/down perforation pressing plates is offered on pressing plate, and the major axis of waist-shaped hole is elastic along first
Part points to the direction extension of the second elastic component；First elastic component and/or the second elastic component are connected by connection component with waist-shaped hole,
And position-adjustable of the connection component in waist-shaped hole.
Preferably, connection component includes offering through hole on screw and nut, the first elastic component and/or the second elastic component,
Screw is connected through through hole and waist-shaped hole and with nut.
Preferably, nut is located at the top of pressing plate, and screw also extends through one located at the elastomeric pad between pressing plate and nut.
Preferably, the first elastic component and the second elastic component are " U " type part, " U " type part include base and from base two
What side was extended is in be offered on two sides opposing upper and lower, two sides for realizing the first elastic component and the second elasticity
The nested breach of part relative dislocation.
Preferably, in addition to connecting pole, one end of connecting pole is connected with pressing plate, and the other end is connected with frame.
Preferably, connecting pole is connected in the center of pressing plate with pressing plate.
Compared with prior art, the present invention has significant progressive：
(1) pressing plate, the meeting when power that frame is acted on pressing plate is transferred to elastic supporting member for supporting optical member are flexibly supported by elastic supporting member for supporting optical member
Elastic supporting member for supporting optical member is set to occur elastic deformation, also, with the cyclically-varying of frame vibration inertia force direction and size, elasticity branch
The elastic deformation amount of support member also can generating period change, therefore frame vibrational energy can with elastic supporting member for supporting optical member high frequency distortions
Dissipation is gone out, so as to reach the effect of vibration damping.
(2) by adjusting the spacing distance between the first elastic component and the second elastic component, the rigidity of foot pad can be adjusted, it is real
The regulation of existing foot pad resonant frequency, so that the rigidity and resonant frequency of foot pad can reach the state with complete machine best match,
Therefore can be by the quick optimal vibration damping rigidity for determining foot pad of debugging, the foot pad without changing plurality of specifications is tested really one by one
It is fixed, not only substantially increase research and development and debugging efficiency, and reduce the specification species of foot pad, with versatility is good, cost is low,
Simple in construction, the convenient advantage of debugging.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the stiffness-adjustable frame foot pad of the embodiment of the present invention.
Fig. 2 is the decomposing schematic representation of the stiffness-adjustable frame foot pad of the embodiment of the present invention.
In figure：
1st, pressing plate 10, waist-shaped hole 11, through hole
2nd, elastic supporting member for supporting optical member 20, through hole 21, the first elastic component
22nd, the second elastic component 201, base 202, upper side edge
203rd, lower side 204, breach 3, connection component
31st, screw 32, nut 33, elastomeric pad
34th, the first pad 35, the second pad
4th, connecting pole 5, attaching nut
Embodiment
The embodiment to the present invention is described in further detail below in conjunction with the accompanying drawings.These embodiments are only used for
Illustrate the present invention, and not limitation of the present invention.
In the description of the invention, it is necessary to explanation, term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicate or dark
Specific orientation must be had, with specific azimuth configuration and operation by showing the device or element of meaning, therefore it is not intended that right
The limitation of the present invention.In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying and be relative
Importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
In addition, in the description of the invention, unless otherwise indicated, " multiple " are meant that two or more.
As depicted in figs. 1 and 2, a kind of embodiment of stiffness-adjustable frame foot pad of the invention.The rigidity of the present embodiment
Adjustable frame foot pad can be used for the lower section for being arranged on sewing machine frame, be used as the support foot pad of whole frame.
Specifically, as shown in figure 1, the stiffness-adjustable frame foot pad of the present embodiment includes pressing plate 1 and elastic supporting member for supporting optical member 2,
Pressing plate 1 is used to be connected with frame, and the resilient support pressing plate 1 of elastic supporting member for supporting optical member 2, the power that frame is acted on pressing plate 1 is transferred to elasticity
Elastic supporting member for supporting optical member 2 can be made to occur elastic deformation during support member 2, also, with frame vibration inertia force direction and the cycle of size
Property change, the elastic deformation amount of elastic supporting member for supporting optical member 2 also can generating period change, therefore the vibrational energy of frame can be with elasticity branch
The high frequency distortions of support member 2 dissipate away, so as to reach the effect of vibration damping.
Elastic supporting member for supporting optical member 2 in the present embodiment includes the first elastic component 21 and the second elastic component 22, the He of the first elastic component 21
The relative dislocation of second elastic component 22 is nestedly located at the lower section of pressing plate 1, and between the first elastic component 21 and the second elastic component 22
Spacing distance can adjust.In the presence of identical power, the elastic deformation amount of elastic supporting member for supporting optical member 2 and the first elastic component 21 and the second bullet
Spacing distance between property part 22 is relevant, and the spacing distance is bigger, and the elastic deformation amount of elastic supporting member for supporting optical member 2 is bigger, and foot pad is whole
The rigidity of body is then smaller；Conversely, the overall rigidity of foot pad is then bigger.Therefore, the elasticity of the first elastic component of regulation 21 and second is passed through
Spacing distance between part 22, can adjust the rigidity of foot pad, realize the regulation of foot pad resonant frequency, so that the rigidity of foot pad
And resonant frequency can reach the state with complete machine best match.Thus, the stiffness-adjustable frame foot pad of the present embodiment can be with
By the quick optimal vibration damping rigidity for determining foot pad of debugging, the foot pad without changing plurality of specifications tests determination one by one, not only
Research and development and debugging efficiency are substantially increased, and reduces the specification species of foot pad, with versatility is good, cost is low, structure is simple
Single, the convenient advantage of debugging.
Further, to realize the adjustable of spacing distance between the first elastic component 21 and the second elastic component 22, the first elasticity
The elastic component 22 of part 21 and/or second and pressing plate 1 are detachably connected, and the first elastic component 21 and/or the second elastic component 22 and pressure
The direction that the link position of plate 1 can point to the second elastic component 22 along the first elastic component 21 is adjusted.That is the first elastic component 21 and second
At least one in elastic component 22 and pressing plate 1 are detachably connected and the side of the second elastic component 22 can be pointed to along the first elastic component 21
To regulation and the link position of pressing plate 1, so as to realize the regulation of spacing distance between the first elastic component 21 and the second elastic component 22.
Preferably, in the present embodiment, the first elastic component 21 and the second elastic component 22 are detachably connected with pressing plate 1,
Also, the first elastic component 21 and the second elastic component 22 can along the first elastic component 21 point to the second elastic component 22 direction regulation with
The link position of pressing plate 1, thus, while spacing distance between the first elastic component 21 and the second elastic component 22 is adjusted, also may be used
To keep elastic supporting member for supporting optical member 2 to be integrally located at the underface of pressing plate 1, so as to ensure that elastic supporting member for supporting optical member 2 is good to the support effect of pressing plate 1
It is good.Certainly, in the first elastic component 21 and the second elastic component 22 only one it is detachably connected and can be along the first elasticity with pressing plate 1
When part 21 points to the direction regulation of the second elastic component 22 with the link position of pressing plate 1, the first elastic component 21 and the can also be realized
The regulation of spacing distance between two elastic components 22.
Further, to realize that the first elastic component 21 and/or the second elastic component 22 and pressing plate 1 are detachably connected and can be along the
One elastic component 21 points to direction regulation and the link position of pressing plate 1 of the second elastic component 22, is offered on pressing plate 1 above and below multiple
The waist-shaped hole 10 of insertion pressing plate, and waist-shaped hole 10 major axis along the first elastic component 21 point to the second elastic component 22 direction extend.
First elastic component 21 and/or the second elastic component 22 are connected by connection component 3 with waist-shaped hole 10, and connection component 3 is in waist-shaped hole
Position-adjustable in 10.By adjusting position of the connection component 3 in waist-shaped hole 10, you can realize the first elastic component 21 and/
Or second elastic component 22 and the link position of pressing plate 1 regulation.
Preferably, as shown in Fig. 2 in the present embodiment, being provided with four waist-shaped holes 10, the first elastic component on pressing plate 1 side by side
21 and second elastic component 22 be connected correspondingly with two waist-shaped holes 10 each via two groups of connection components 3, it is possible thereby to protect
Demonstrate,prove the side that the first elastic component 21 and the second elastic component 22 extend in the link position of regulation and pressing plate 1 along the major axis of waist-shaped hole 10
To i.e. the first elastic component 21 points to the direction movement of the second elastic component 22, so as to ensure the accurate and effective of regulation, realizes fast velocity modulation
Examination.
Further, connection component 3 includes opening on screw 31 and nut 32, the first elastic component 21 and/or the second elastic component 22
Provided with through hole 20, screw 31 is connected through the waist-shaped hole 10 on through hole 20 and pressing plate 1 and with nut 32.When tightening nut 32
When, the first elastic component 21 and/or the second elastic component 22 are fastenedly connected by screw 31 and nut 32 with pressing plate 1；When unscrewing nut 32
When, screw 31 can be moved in waist-shaped hole 10, and drive the first elastic component 21 and/or the second elastic component 22 to move, so as to change
The relative position of first elastic component 21 and/or the second elastic component 22 and pressing plate 1, and then change the first elastic component 21 and the second elasticity
Relative position between part 22.Thus achieve the first elastic component 21 and/or the second elastic component 22 passes through connection component 3 and waist type
Hole 10 is detachably connected, and position-adjustable of the connection component 3 in waist-shaped hole 10.
In the present embodiment, two through holes 20, each through hole are offered on the first elastic component 21 and the second elastic component 22
A waist-shaped hole 10 on 20 respective correspondence pressing plates 1, and each through hole 20 passes through a screw 31 and a nut 32 and one
Individual waist-shaped hole 10 is connected.
Further, in the present embodiment, nut 32 is located at the top of pressing plate 1, and screw 31 also extends through one and is located at pressing plate 1 and nut
Elastomeric pad 33 between 32.Elastomeric pad 33 can play a part of vibration damping.
Further, in the present embodiment, the first pad is provided between the first elastic component 21 or the second elastic component 22 and pressing plate 1
34, between pressing plate and elastomeric pad 33 be provided with the second pad 35, screw 31 sequentially pass through from bottom to up the first elastic component 21 or
Second elastic component 22, the first pad 34, pressing plate 1, the second pad 35 and elastomeric pad 33 are connected with nut 32.
Further, in the present embodiment, the first elastic component 21 and the second elastic component 22 are " U " type part, and " U " type part includes bottom
What side 201 and both sides from base 201 were extended is in two sides opposing upper and lower, i.e. upper side edge 202 and lower side 203, on
Side 202 with offered on lower side 203 for realizing that the first elastic component 21 is nested with the relative dislocation of the second elastic component 22
Breach 204.Pressing plate 1 is connected with the upper side edge 202 of the first elastic component 21 and the second elastic component 22.In the present embodiment, the first bullet
Property the elastic component 22 of part 21 and second on two through holes 20 be opened on upper side edge 202, and two through holes 20 respectively be located at lack
The both sides of mouth 204.
Certainly, the shape of the first elastic component of the invention and the second elastic component is not limited to " U " type part of the present embodiment,
What can also be taken other form can occur the elastic component of elastic deformation, such as open rectangle part, " C " type part under external force
Or cantilever slab etc..
Further, in the bottom of the first elastic component 21 and the second elastic component 22 anti-abrasion pad can also be set (not show in figure
Go out), anti-abrasion pad can be made of rubber or plastics, can be played a part of abrasionproof and be filled and led up.
The material of the first elastic component 21 and the second elastic component 22 is not limited in the present embodiment, can use metal material system
Into, it is made for example with spring steel, elasticity is enough, and with stronger support strength, it is adaptable to various types of machines；Also may be used
It is made of plastic to adopt, it is adaptable to which that relatively low small machines are required to support strength.
Further, the stiffness-adjustable frame foot pad of the present embodiment also includes connecting pole 4, one end and the pressing plate 1 of connecting pole 4
Connection, the other end of connecting pole 4 is connected with frame.
Preferably, connecting pole 4 is connected in the center of pressing plate 1 with pressing plate 1.In the present embodiment, connecting pole 4 is a connection
Stud, connecting stud is provided with external screw thread, and the center of pressing plate 1 offers through hole 11, and the lower end of connecting stud is arranged in
Insertion 11 on pressing plate 1, and upper and lower on connecting stud in pressing plate 1 is connected to an attaching nut 5, so as to realize
Connecting stud lower end is fastenedly connected with pressing plate 1, and the upper end of connecting stud is then used for connection frame.
In summary, the stiffness-adjustable frame foot pad of the present embodiment, can be consumed by the high frequency distortions of elastic supporting member for supporting optical member 2
The vibrational energy of frame is dissipated, the effect of vibration damping is reached.By adjusting the interval between the first elastic component 21 and the second elastic component 22
Distance, can adjust the rigidity of foot pad, realize the regulation of foot pad resonant frequency, so that the rigidity and resonant frequency of foot pad can
The state with complete machine best match is reached, therefore can be by the quick optimal vibration damping rigidity for determining foot pad of debugging, without more
The foot pad for changing plurality of specifications tests determination one by one, not only substantially increases research and development and debugging efficiency, and reduce the rule of foot pad
Lattice species, with versatility is good, cost is low, simple in construction, the convenient advantage of debugging.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and replacement can also be made, these improve and replaced
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of stiffness-adjustable frame foot pad, it is characterised in that including the pressing plate (1) for being connected with frame and elasticity branch
The elastic supporting member for supporting optical member (2) of the pressing plate (1) is supportted, the elastic supporting member for supporting optical member (2) includes the first elastic component (21) and the second elastic component
(22), first elastic component (21) is nested with the second elastic component (22) relative dislocation and spacing distance is adjustably located at described
The lower section of pressing plate (1).
2. stiffness-adjustable frame foot pad according to claim 1, it is characterised in that first elastic component (21) and/
Or second elastic component (22) and the pressing plate (1) it is detachably connected, and first elastic component (21) and/or described
The link position of two elastic components (22) and the pressing plate (1) can point to second elastic component along first elastic component (21)
(22) direction regulation.
3. stiffness-adjustable frame foot pad according to claim 2, it is characterised in that offered on the pressing plate (1) many
The waist-shaped hole (10) of pressing plate (1) described in individual up/down perforation, and the waist-shaped hole (10) major axis along first elastic component (21)
Point to the direction extension of second elastic component (22)；First elastic component (21) and/or second elastic component (22) are logical
Connection component (3) is crossed to be connected with the waist-shaped hole (10), and position of the connection component (3) in the waist-shaped hole (10) can
Regulation.
4. stiffness-adjustable frame foot pad according to claim 3, it is characterised in that the connection component (3) includes spiral shell
Follow closely and offer through hole (20), institute on (31) and nut (32), first elastic component (21) and/or second elastic component (22)
Screw (31) is stated through the through hole (20) and the waist-shaped hole (10) and is connected with the nut (32).
5. stiffness-adjustable frame foot pad according to claim 4, it is characterised in that the nut (32) is located at the pressure
The top of plate (1), the screw (31) also extends through one located at the elastomeric pad between the pressing plate (1) and the nut (32)
(33)。
6. stiffness-adjustable frame foot pad according to claim 1, it is characterised in that first elastic component (21) and institute
It is " U " type part to state the second elastic component (22), and " U " the type part includes base (201) and prolonged from the both sides of the base (201)
What is stretched out is in be offered on two sides (202,203) opposing upper and lower, two sides (202,203) for realizing institute
State the first elastic component (21) breach (204) nested with the second elastic component (22) relative dislocation.
7. stiffness-adjustable frame foot pad according to claim 1, it is characterised in that also including connecting pole (4), the company
The one end for connecing post (4) is connected with the pressing plate (1), and the other end is connected with the frame.
8. stiffness-adjustable frame foot pad according to claim 7, it is characterised in that the connecting pole (4) is in the pressure
The center of plate (1) is connected with the pressing plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710294400.1A CN107023736B (en) | 2017-04-28 | 2017-04-28 | A kind of stiffness-adjustable rack foot pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710294400.1A CN107023736B (en) | 2017-04-28 | 2017-04-28 | A kind of stiffness-adjustable rack foot pad |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107023736A true CN107023736A (en) | 2017-08-08 |
| CN107023736B CN107023736B (en) | 2019-05-03 |
Family
ID=59527592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710294400.1A Active CN107023736B (en) | 2017-04-28 | 2017-04-28 | A kind of stiffness-adjustable rack foot pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107023736B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201096160Y (en) * | 2007-11-09 | 2008-08-06 | 中国船舶重工集团公司第七一一研究所 | Rigidity-changing regulation type rubber vibration isolator |
| CN201747858U (en) * | 2010-06-30 | 2011-02-16 | 奇瑞汽车股份有限公司 | Dynamic vibration absorber with adjustable frequency |
| CN103225666A (en) * | 2013-04-02 | 2013-07-31 | 合肥工业大学 | Variable-stiffness variable-damping vibration absorber based on characteristics of magneto-rheological fluid |
| CN203161947U (en) * | 2013-03-21 | 2013-08-28 | 洛阳双瑞橡塑科技有限公司 | Frequency-adjustable dynamic vibration absorber |
-
2017
- 2017-04-28 CN CN201710294400.1A patent/CN107023736B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201096160Y (en) * | 2007-11-09 | 2008-08-06 | 中国船舶重工集团公司第七一一研究所 | Rigidity-changing regulation type rubber vibration isolator |
| CN201747858U (en) * | 2010-06-30 | 2011-02-16 | 奇瑞汽车股份有限公司 | Dynamic vibration absorber with adjustable frequency |
| CN203161947U (en) * | 2013-03-21 | 2013-08-28 | 洛阳双瑞橡塑科技有限公司 | Frequency-adjustable dynamic vibration absorber |
| CN103225666A (en) * | 2013-04-02 | 2013-07-31 | 合肥工业大学 | Variable-stiffness variable-damping vibration absorber based on characteristics of magneto-rheological fluid |
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| Publication number | Publication date |
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| CN107023736B (en) | 2019-05-03 |
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