CN104294483A - Cloth feeding assembly and manufacturing method thereof - Google Patents
Cloth feeding assembly and manufacturing method thereof Download PDFInfo
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- CN104294483A CN104294483A CN201410452691.9A CN201410452691A CN104294483A CN 104294483 A CN104294483 A CN 104294483A CN 201410452691 A CN201410452691 A CN 201410452691A CN 104294483 A CN104294483 A CN 104294483A
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/02—Work-feeding means with feed dogs having horizontal and vertical movements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2209/00—Use of special materials
- D05D2209/12—Metals or metal coatings
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention relates to a cloth feeding assembly for a sewing machine and a manufacturing method of the cloth feeding assembly, and belongs to the technical field of machines. The cloth feeding assembly comprises a gear table and a cloth feeding gear, the gear table comprises a support with a horizontal table top, a convex lug is arranged on one side of the gear table, and two hinge lugs are fixedly arranged on the other side of the gear table. The cloth feeding gear comprises a gear frame, a plurality of adjusting holes are formed in the gear frame, two double-tooth gear racks are arranged on the gear frame and are connected through a connecting rib, and a square hole is defined by the gear racks and the gear frame. The cloth feeding assembly is manufactured by aluminum alloy, by mass, 0.2 percent to 0.4 percent of Si, 0.3 percent to 0.5 percent of Mg, 0.15 percent to 0.3 percent of Cu, 0.8 percent to 1.0 percent of Fe, 0.15 percent to 0.3 percent of Mn, 0.1 percent to 0.25 percent of Zn, 0.02 percent to 0.1 percent of Cr, 0.15 percent to 0.3 percent of Ti, 0.02 percent to 0.03 percent of Sc and the balance Al. The manufacturing method is disclosed. The cloth feeding assembly is good in combination property and high in cloth feeding efficiency.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of work feed assembly, particularly a kind of work feed assembly for Sewing machines.
Background technology
Sewing machines is the machine one or more layers sewing being interweaved or united by a seam by one or more sewing thread, is made up of support, transmission device and cloth feeding mechanism etc.Wherein, cloth feeding mechanism is a part the most key on Sewing machines, and cloth feeding mechanism generally comprises retainer, cloth conveying teeth etc., and actuator drives retainer moves, and drives cloth conveying teeth to move up and down further, thus reaches the function of work feed.
Cloth conveying teeth form of the prior art has and vertically arranges with horizontally disposed, and its teeth of cloth conveying teeth vertically arranged are still horizontal homogeneous distribution, and the position that takes up room is large; And horizontally disposed cloth conveying teeth mostly is one-sided fixing, the phenomenon of unbalance stress may be there is, cause work feed process to be difficult to carry out.In addition, cloth conveying teeth also has the form be directly connected with retainer, and this design there will be cloth conveying teeth and uses consumption comparatively large, and be not easy to change, and the material that work feed assembly is selected is comparatively common, ABRASION RESISTANCE is not good, and anticorrosive property is bad, and service life is shorter.
In sum, for solving the deficiency on existing work feed modular construction, the work feed assembly designing a kind of compact conformation, result of use is good, work feed efficiency is high is needed.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of compact conformation, result of use is good, work feed efficiency is high, the work feed assembly of long service life.
Object of the present invention realizes by following technical proposal: a kind of work feed assembly, comprise tooth platform and cloth conveying teeth, described tooth platform comprises the support with a level table, the side of support stretches out formation lug, opposite side is installed with the two hinge ears be arranged in parallel, each hinge ear all offers axis hole, level table offers some first screwed holes and one of them the first screwed hole is located in the middle part of lug, described cloth conveying teeth comprises braces, braces offers and described first screwed hole some adjustment holes one to one, described braces is arranged on level table by screw, the end face of braces away from support is provided with two dual pinion racks be arranged in parallel, be provided with between two dual pinion racks and be uniformly distributed and the some monodentate tooth bars be arranged in parallel, described two dual pinion racks are also connected by a dowel respectively to extension, described braces, dowel and two dual pinion racks surround formation one square opening, wherein, described work feed assembly material is aluminium alloy, count by weight percentage, described aluminium alloy comprises following component: Si:0.20-0.40%, Mg:0.30-0.50%, Cu:0.15-0.30%, Fe:0.80-1.00%, Mn:0.15-0.30%, Zn:0.10-0.25%, Cr:0.02-0.10%, Ti:0.15-0.30%, Sc:0.02-0.03%, surplus is Al and inevitable impurity.
Work feed assembly on Sewing machines of the present invention adopts the rational aluminum alloy material of compatibility to obtain, and in aluminium alloy, component is the principal element affecting aluminium alloy electric conductivity, and the addition of element and the form of existence are depended in its impact.Various elements in aluminium alloy, except existing with simple substance on a small quantity, all by entering the lattice of aluminium or forming various types of compound, affect the phasor of aluminium alloy, elementary organization, process of setting, processing performance etc.In addition alloy also can affect grain size, increases grain boundary area and forms impurity etc., and thus each chemical element can be showed by the final tissue formed the various performances of aluminium alloy.
Scandium (Sc) also containing 0.01-0.02% in work feed component aluminum alloy of the present invention, Sc and Ti forms Al on the one hand
3(Sc, Ti) compound particle, nascent Al
3(Sc, Ti) compound particle alloy crystal grain has extremely strong refining effect, secondary Al
3(Sc, Ti) particle is pinning dislocation and sub boundary consumingly, effectively suppresses the recrystallization of alloy, and this work feed component aluminum alloy adopts Sc and Ti combined microalloying to have refined crystalline strengthening, substructure strengthening and directly precipitation strength effect simultaneously.On the other hand, Sc and Mn combined microalloying eliminates the arborescent structure in alloy to a certain extent, also has substructure strengthening and direct precipitation strength effect.
And the reasonable compatibility of silicon (Si) and magnesium (Mg) makes aluminium alloy have advantages such as thermal coefficient of expansion is little, heat conductivity good, hot cracking tendency is little, good fluidity, make work feed component aluminum alloy of the present invention obviously be different from other Birmasil or wrought aluminium alloy.In addition the interpolation of element silicon can solve aluminium copper and almag can not the phenomenon of solution strengthening.And the general content of Si that adopts controls at 0.4-0.8% in prior art, although adopt the element silicon of this content can improve tensile strength, hardness, the machinability of alloy to a certain extent, but in the work feed component aluminum alloy containing Sc, Si can form compound (Sc with Sc
2alSi
2), change the resolution characteristic of aluminium alloy containing Sc solid solution simultaneously, reduce the strengthening effect of scandium in aluminium alloy during supersaturated solid solution decomposition, reduce the half-finished recrystallization temperature of Mo-bearing granitoid, and silicon content is excessive, exceedes eutectic composition, when impurity is many again, there will be the Hard Inclusion of free silica, make machining difficulty, serious to the corrosion of foundry goods crucible.Therefore, in work feed component aluminum alloy, Si is strictly controlled at 0.20-0.40%.
Magnesium elements is the essential element in aluminium alloy, forms hardening constituent MgSi with Si
2, generally Mg content is controlled at 0.90-1.0% in prior art, although adopt the magnesium elements of this content can put forward heavy alloyed corrosion resistance, excessive MgSi
2foundry goods can be made to become fragile, affect casting character, affect intensity of aluminum alloy and plasticity, in the aluminium alloy of work feed assembly of the present invention, therefore only add the magnesium of 0.30-0.50%, both ensure the corrosion resistance that aluminium alloy is excellent, and put forward heavy alloyed intensity and yield limit further again.
Iron (Fe) and titanium (Ti) are as transition element, it is solid-solution in aluminium in equilibrium conditions hardly, and exist with the intermetallic compound of high-temperature stable high elastic modulus disperse, from strengthening matrix and crystal boundary, make aluminium alloy have excellent high temperature comprehensive mechanical property.Iron, titanium elements content that work feed component aluminum alloy of the present invention is chosen need Rational choice, although can significantly improve the recrystallization temperature of Zn, slow down the process of recrystallization, be solid-solution in zinc, but can not infinitely expand its content, because the Fe that iron content exceedes solid solution limit can generate dregs, with FeAl
3crystallize out, work feed assembly is become fragile, cracks, machinability is deteriorated.But if iron content, lower than 0.70%, there will be the phenomenon of the not easily demoulding in work feed component aluminum alloy of the present invention, particularly strong when iron content is below 0.65%.After more than 0.70%, mold sticking just alleviates to some extent, therefore, in work feed component aluminum alloy of the present invention, Fe content is preferred further, controls at 0.80-1.00%.And titanium elements needs to coordinate the effect that just can reach and strengthen aluminium alloy high-temperature behavior with ferro element.
Copper (Cu) is the same with aluminium element has face-centred cubic structure, and the fusing point of copper is 1084.5 DEG C.The lattice paprmeter of copper and aluminium differs greatly, but copper can be dissolved in aluminium, therefore after adding copper, make the dot matrix of aluminium that very large distortion occur, produce very significant invigoration effect, significantly improve the mechanical performance of alloy, cutting ability, but along with the raising of copper content, corrosion resistance and the plasticity of alloy acutely decline, and hot cracking tendency increases, and excessive copper can affect the strengthening effect of scandium.Therefore the addition of copper is controlled at 0.10-0.30%.
Manganese (Mn) is the important element of aluminium alloy, the adverse effect of iron can be reduced on the one hand, the sheet that formed from iron in aluminium alloy or acicular constituent can be made to become fine and closely woven texture, and therefore the proportioning of ferro element and manganese element is also choose the important references parameter of manganese element content; Adding on the other hand manganese element can refiner material tissue, improves recrystallization temperature, the heat resistance of enhancing aluminium alloy.Although manganese and scandium inoperative, do not form intermetallic compound, but the solubility that excessive manganese can reduce Sc can reduce the formation of intermetallic compound, the manganese of less than 0.5% is allowed to exist in general aluminium alloy, but need the excellent content by Mn to control at 0.15-0.30% containing in the work feed component aluminum alloy of scandium, Mn just can be avoided the impact of Sc.
Independent interpolation zinc (Zn) is very limited to the raising of intensity of aluminum alloy, also there is stress corrosion cracking tendency, but Zn-ef ficiency and magnesium elements can form hardening constituent Mg/Zn2, can significantly improve tensile strength and the yield strength of alloy simultaneously.But excessive Zn can reduce anti-corrosive properties, the Zn-ef ficiency content that the present invention chooses is 0.10-0.25%.
Chromium (Cr) forms (CrFe) Al in aluminium
7(CrMn) Al
12deng intermetallic compound, hinder the nucleation and growth process of recrystallization, energy reinforced alloys, alloy ductility can also be improved and reduce stress corrosion opening cracking maleate sensitivity, but chromatize in containing the aluminium alloy of scandium, need the strict content controlling chromium, chromium content is once excessive a little, strengthening effect and the anti-recrystallizing effect of Sc will be reduced, and low-alloyed plasticity can fall in excessive chromium, strengthen gradation etching tendency, therefore, comprehensive each factor add in work feed assembly of the present invention 0.02-0.10% chromium can while not affecting other element invigoration effects further reinforced alloys, put forward heavy alloyed toughness and corrosion resistance.
In above-mentioned a kind of work feed assembly, as preferably, described aluminium alloy is grouped into by the one-tenth of following percentage by weight: Si:0.30%, Mg:0.40%, Cu:0.20%, Fe:0.90%, Mn:0.25%, Zn:0.20%, Cr:0.06%, Ti:0.20%, Sc:0.025%, surplus is Al and inevitable impurity.
In above-mentioned a kind of work feed assembly, as preferably, described aluminium alloy is grouped into by the one-tenth of following percentage by weight: Si:0.20%, Mg:0.50%, Cu:0.15%, Fe:1.00%, Mn:0.15%, Zn:0.25%, Cr:0.02%, Ti:0.30%, Sc:0.02%, surplus is Al and inevitable impurity.
In above-mentioned a kind of work feed assembly, as preferably, described aluminium alloy is grouped into by the one-tenth of following percentage by weight: Si:0.40%, Mg:0.30%, Cu:0.30%, Fe:0.80%, Mn:0.30%, Zn:0.10%, Cr:0.10%, Ti:0.15%, Sc:0.03%, surplus is Al and inevitable impurity.
In above-mentioned a kind of work feed assembly, described dowel is provided with linear distributing some teeth.
In above-mentioned a kind of work feed assembly, each hinge ear all offers and second screwed hole that communicate vertical with axis hole.
In above-mentioned a kind of work feed assembly, the sidewall of described support offers first " U " shape groove, second " U " shape groove between two hinge ears, the opening of described first " U " shape groove and second " U " shape groove is oppositely arranged, the first through hole running through support is offered in described first " U " shape groove, described support offers two the second through holes be arranged in parallel on the sidewall of lug, and one of them second through hole passes support and is connected with second " U " shape groove.
Another object of the present invention is the preparation method providing a kind of above-mentioned work feed assembly, and described preparation method comprises the steps:
S1, by above-mentioned percentage by weight constituent select aluminum alloy materials, aluminum alloy materials is melted, obtains Al-alloy metal liquid;
S2, Al-alloy metal liquid to be stirred, then carry out refinery by de-gassing, scarfing cinder process;
S3, the Al-alloy metal liquid after above-mentioned process is cast as work feed assembly blank;
S4, to be heat-treated by work feed assembly blank and to obtain final work feed assembly finished product, heat treatment comprises solution treatment and natural aging treatment, and wherein solid solution temperature is 540-560 DEG C, and insulation 4-6h, aging time is 24-30h.
In the preparation method of above-mentioned work feed assembly, by degassing process to eliminate the harmful effect of air-breathing and coarse grains in Alloys Casting process.The present invention is simultaneously also by adding oxidant to reach the effect removed residue, reduce aluminium alloy pore, improve aluminium alloy toughness and compactness.Preferably, the present invention carries out refining by passing into nitrogen rotation degasification.
Solution treatment can improve plasticity and the toughness of alloy, and the Ageing Treatment after solution treatment can eliminate the internal stress of cast member, stabilizing tissue and size, improves mechanical performance.
As preferably, in step S4, solid solution temperature is 545-555 DEG C, and insulation 4-5h, aging time is 24-26h.
Compared with prior art, compact conformation of the present invention, work feed efficiency are high; Adopt the structure of combining form to cloth conveying teeth of tooth platform and cloth conveying teeth to have certain protective role, extend its service life; Cloth conveying teeth stiff end is positioned on the straight line at feed direction place, ensures cloth conveying teeth both sides uniform force, and cloth conveying steadily.In addition, work feed assembly of the present invention selects the rational aluminium alloy of compatibility to make, by the synergy between each element, and choose reasonable preparation method, significantly improve the mechanical performance of work feed assembly, especially anti-wear performance, anticorrosive property, and then the service life and the operating efficiency that improve work feed assembly.
Accompanying drawing explanation
Fig. 1 is the structural representation of a preferred embodiment of the present invention.
Fig. 2 is the structural representation at another visual angle of Fig. 1.
Fig. 3 is the structural representation of tooth platform in a preferred embodiment of the present invention.
Fig. 4 is the structural representation at another visual angle of Fig. 3.
Fig. 5 is the partial sectional view of tooth platform in a preferred embodiment of the present invention.
In figure, 10, tooth platform; 11, support; 12, lug; 13, ear is cut with scissors; 131, axis hole; 132, the second screwed hole; 14, level table; 141, the first screwed hole; 15, first " U " shape groove; 151, the first through hole; 16, second " U " shape groove; 161, the second through hole; 20, cloth conveying teeth; 21, braces; 211, adjustment hole; 22, monodentate tooth bar; 23, dual pinion rack; 24, dowel; 241, teeth; 25, square opening.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figures 1 to 5, this work feed assembly comprises tooth platform 10 and cloth conveying teeth 20, tooth platform 10 comprises the support 11 with a level table 14, the side of support 11 stretches out and forms lug 12, opposite side is installed with the two hinge ears 13 be arranged in parallel, each hinge ear 13 all offers axis hole 131, level table 14 offers multiple first screwed hole 141 and one of them the first screwed hole 141 is located in the middle part of lug 12, cloth conveying teeth 20 comprises braces 21, braces 21 offers and above-mentioned first screwed hole 141 multiple adjustment hole 211 one to one, braces 21 is arranged on level table 14 by screw, the end face of braces 21 away from support 11 is provided with two dual pinion racks 23 be arranged in parallel, be provided with between two dual pinion racks 23 and be uniformly distributed and the multiple monodentate tooth bars 22 be arranged in parallel, two dual pinion racks 23 are also connected by a dowel 24 respectively to extension, braces 21, dowel 24 and two dual pinion racks 23 surround formation one square opening 25.
The invention provides a kind of work feed assembly of use in sewing machine, comprise tooth platform 10 and cloth conveying teeth 20, tooth platform 10 has a level table 14, being convenient to cloth conveying teeth 20 is arranged on tooth platform 10, level table 14 is offered multiple first screwed hole 141, braces 21 is offered and the first screwed hole 141 multiple adjustment hole 211 one to one, facilitate screw to pass adjustment hole 211 and be threaded in the first screwed hole 141.In addition, the setting of adjustment hole 211 also can be used to regulate cloth conveying teeth 20 and the relative position of tooth platform 10, finds suitable position to be then screwed.
The setting of two hinge ears 13 provides a booster action for being arranged on by tooth platform 10 in retainer (not shown), offering of axis hole 131 is convenient to bearing pin (not shown) be connected on retainer through axis hole 131 by tooth platform 10, when the driving mechanism of Sewing machines drives retainer to move, tooth platform 10 moves together along with retainer, drive cloth conveying teeth 20 to operate simultaneously, thus reach the object of work feed.
On braces 21, two dual pinion racks 23 arranges to surround with dowel 24 and braces 21 side on the one hand and forms above-mentioned square opening 25, on the other hand the arrangement of bidentate can increase the pulling force to cloth when cloth conveying teeth 20 pulls cloth, disposablely unhinderedly cloth can be carried when feeding, there will not be cloth to carry not in time, cause the phenomenon that cloth is piled up.The setting of multiple monodentate tooth bar 22 is then increase cloth conveying teeth 20 and the contact area of cloth, is also conducive to the pulling force increasing cloth conveying teeth 20 pairs of clothes simultaneously, is convenient to cloth conveying teeth 20 and better cloth is delivered to the other end from one end.
The setting of square opening 25 is for the upper and lower lancing motion of sewing needle provides a space, and the thorn material, hook line, take-up etc. of Sewing machines all here complete.
Further preferably, dowel 24 is provided with linear distributing multiple teeth 241.Enter from the one end near dowel 24 during cloth conveying, drive order successively to carry until sewing process terminates from cloth conveying teeth 20 by above-mentioned teeth 241, two dual pinion rack 23.Arranging of multiple teeth 241 has certain guiding function to the conveying of cloth, in addition, ensure that the cloth cloth be namely in above square opening 25 between teeth 241, two dual pinion rack 23 and multiple monodentate tooth bar 22 keeps smooth, be convenient to the sewing needle cloth that punctures up and down smooth, the cloth when lower pin is avoided to pile up, the sewing of cloth is had an impact, even may cause damage to sewing needle.
Preferably, each hinge ear 13 all offers and second screwed hole 132 that communicate vertical with axis hole 131.Be screwed into screw in second screwed hole 132, bearing pin and axis hole 131 are further fixed, guarantee that tooth platform 10, with retainer, relative motion can not occur.Certainly can lock bearing pin and axis hole 131 according to concrete working condition in a practical situation.
Further preferably, the sidewall of support 11 offers first " U " shape groove 15, second " U " shape groove 16 between two hinge ears 13, the opening of first " U " shape groove 15 and second " U " shape groove 16 is oppositely arranged, the first through hole 151 running through support 11 is offered in first " U " shape groove 15, support 11 offers two the second through holes 161 be arranged in parallel on the sidewall of lug 12, and one of them second through hole 161 passes support 11 and is connected with second " U " shape groove 16.
First through hole 151 and the setting of the second through hole 161 are convenient to tooth platform 10 be connected with the miscellaneous part in sewing machine feeding mechanism, the setting of first " U " shape groove 15 and second " U " shape groove 16 is then the placement facilitating screw or other union pieces, also be convenient to the processing of the first through hole 151 and the second through hole 161 simultaneously, in addition, first " U " shape groove 15 and second " U " shape groove 16 offer the weight that can alleviate tooth platform 10, the intensity increasing himself to a certain extent also has certain aesthetic property simultaneously.
This work feed assembly in an initial condition, cloth conveying teeth 20 and tooth platform 10 are connected, tooth platform 10 is fixedly mounted on retainer, Sewing machines driving mechanism drives retainer motion, further drive tooth platform 10 swings with cloth conveying teeth 20, and now cloth is carried from cloth conveying teeth 20, carries out sewing work, whole work feed modular construction is simple, person's operation easy to use.
Preferably, described work feed assembly material is aluminium alloy, counts by weight percentage, described aluminium alloy comprises following component: Si:0.20-0.40%, Mg:0.30-0.50%, Cu:0.15-0.30%, Fe:0.80-1.00%, Mn:0.15-0.30%, Zn:0.10-0.25%, Cr:0.02-0.10%, Ti:0.15-0.30%, Sc:0.02-0.03%, surplus is Al and inevitable impurity.
Table 1: the constituent of the assembly of work feed described in embodiment 1-3 and mass percent thereof
Embodiment 1
Select aluminum alloy materials by the constituent of percentage by weight described in above-mentioned table 1 embodiment 1, aluminum alloy materials is melted, obtains Al-alloy metal liquid;
Al-alloy metal liquid is stirred, then carries out passing into nitrogen rotation degasification and carry out refining, add common oxidizer and carry out scarfing cinder process;
Al-alloy metal liquid after above-mentioned process is cast as work feed assembly blank;
Work feed assembly blank is heat-treated to obtain final work feed assembly finished product, heat treatment comprises solution treatment and natural aging treatment, and wherein solid solution temperature is 550 DEG C, and insulation 5h, aging time is 25h.
Embodiment 2
Select aluminum alloy materials by the constituent of percentage by weight described in above-mentioned table 1 embodiment 2, aluminum alloy materials is melted, obtains Al-alloy metal liquid;
Al-alloy metal liquid is stirred, then carries out passing into nitrogen rotation degasification and carry out refining, add common oxidizer and carry out scarfing cinder process;
Al-alloy metal liquid after above-mentioned process is cast as work feed assembly blank;
Work feed assembly blank is heat-treated to obtain final work feed assembly finished product, heat treatment comprises solution treatment and natural aging treatment, and wherein solid solution temperature is 545 DEG C, and insulation 6h, aging time is 30h.
Embodiment 3
Select aluminum alloy materials by the constituent of percentage by weight described in above-mentioned table 1 embodiment 3, aluminum alloy materials is melted, obtains Al-alloy metal liquid;
Al-alloy metal liquid is stirred, then carries out passing into nitrogen rotation degasification and carry out refining, add common oxidizer and carry out scarfing cinder process;
Al-alloy metal liquid after above-mentioned process is cast as work feed assembly blank;
Work feed assembly blank is heat-treated to obtain final work feed assembly finished product, heat treatment comprises solution treatment and natural aging treatment, and wherein solid solution temperature is 560 DEG C, and insulation 4h, aging time is 24h.
Comparative example 1
Select 6061 aluminium alloys to obtain work feed assembly by the preparation method in embodiment 1, be not repeated the preparation method in embodiment 1 herein.
Comparative example 2
For common commercially available work feed assembly.
Work feed assembly in embodiment 1-3 and comparative example 1-2 is carried out performance test and compares, and result is as shown in table 2.
The performance test results of the work feed assembly in table 2: embodiment 1-3 and comparative example 1-2
In sum, compact conformation of the present invention, work feed efficiency are high; Adopt the structure of combining form to cloth conveying teeth of tooth platform and cloth conveying teeth to have certain protective role, extend its service life; Cloth conveying teeth stiff end is positioned on the straight line at feed direction place, ensures cloth conveying teeth both sides uniform force, and cloth conveying steadily.In addition, select compatibility rational, the aluminium alloy that mechanical performance is fabulous is made, by the synergy between each element, and choose reasonable preparation method, make the work feed assembly mechanical performance that obtains fabulous, especially there is good anti-wear performance, anticorrosive property, and then improve service life and the operating efficiency of work feed assembly.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (9)
1. a work feed assembly, comprise tooth platform and cloth conveying teeth, it is characterized in that, described tooth platform comprises the support with a level table, the side of support stretches out formation lug, opposite side is installed with the two hinge ears be arranged in parallel, each hinge ear all offers axis hole, level table offers some first screwed holes and one of them the first screwed hole is located in the middle part of lug, described cloth conveying teeth comprises braces, braces offers and described first screwed hole some adjustment holes one to one, described braces is arranged on level table by screw, the end face of braces away from support is provided with two dual pinion racks be arranged in parallel, be provided with between two dual pinion racks and be uniformly distributed and the some monodentate tooth bars be arranged in parallel, described two dual pinion racks are also connected by a dowel respectively to extension, described braces, dowel and two dual pinion racks surround formation one square opening, wherein, described work feed assembly material is aluminium alloy, count by weight percentage, described aluminium alloy comprises following component: Si:0.20-0.40%, Mg:0.30-0.50%, Cu:0.15-0.30%, Fe:0.80-1.00%, Mn:0.15-0.30%, Zn:0.10-0.25%, Cr:0.02-0.10%, Ti:0.15-0.30%, Sc:0.02-0.03%, surplus is Al and inevitable impurity.
2. work feed assembly according to claim 1, it is characterized in that, described aluminium alloy is grouped into by the one-tenth of following percentage by weight: Si:0.30%, Mg:0.40%, Cu:0.20%, Fe:0.90%, Mn:0.25%, Zn:0.20%, Cr:0.06%, Ti:0.20%, Sc:0.025%, surplus is Al and inevitable impurity.
3. work feed assembly according to claim 1, it is characterized in that, described aluminium alloy is grouped into by the one-tenth of following percentage by weight: Si:0.20%, Mg:0.50%, Cu:0.15%, Fe:1.00%, Mn:0.15%, Zn:0.25%, Cr:0.02%, Ti:0.30%, Sc:0.02%, surplus is Al and inevitable impurity.
4. work feed assembly according to claim 1, it is characterized in that, described aluminium alloy is grouped into by the one-tenth of following percentage by weight: Si:0.40%, Mg:0.30%, Cu:0.30%, Fe:0.80%, Mn:0.30%, Zn:0.10%, Cr:0.10%, Ti:0.15%, Sc:0.03%, surplus is Al and inevitable impurity.
5. work feed assembly according to claim 1, is characterized in that, described dowel is provided with linear distributing some teeth.
6. work feed assembly according to claim 1, is characterized in that, each hinge ear all offers and second screwed hole that communicate vertical with axis hole.
7. the work feed assembly according to claim 5 or 6, it is characterized in that, the sidewall of described support offers first " U " shape groove, second " U " shape groove between two hinge ears, the opening of described first " U " shape groove and second " U " shape groove is oppositely arranged, the first through hole running through support is offered in described first " U " shape groove, described support offers two the second through holes be arranged in parallel on the sidewall of lug, and one of them second through hole passes support and is connected with second " U " shape groove.
8. a preparation method for work feed assembly as claimed in claim 1, it is characterized in that, described preparation method comprises the steps:
S1, select aluminum alloy materials by the constituent in claim 1 described in work feed component aluminum alloy and percentage by weight thereof, aluminum alloy materials is melted, obtains Al-alloy metal liquid;
S2, Al-alloy metal liquid to be stirred, then carry out refinery by de-gassing, scarfing cinder process;
S3, the Al-alloy metal liquid after above-mentioned process is cast as work feed assembly blank;
S4, to be heat-treated by work feed assembly blank and to obtain final work feed assembly finished product, heat treatment comprises solution treatment and natural aging treatment, and wherein solid solution temperature is 540-560 DEG C, and insulation 4-6h, aging time is 24-30h.
9. the preparation method of work feed assembly according to claim 8, it is characterized in that, in step S4, solid solution temperature is 545-555 DEG C, and insulation 4-5h, aging time is 24-26h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410452691.9A CN104294483B (en) | 2014-09-05 | 2014-09-05 | A kind of work feed assembly and preparation method thereof |
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| CN201410452691.9A CN104294483B (en) | 2014-09-05 | 2014-09-05 | A kind of work feed assembly and preparation method thereof |
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| CN104294483A true CN104294483A (en) | 2015-01-21 |
| CN104294483B CN104294483B (en) | 2016-05-11 |
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| CN201410452691.9A Active CN104294483B (en) | 2014-09-05 | 2014-09-05 | A kind of work feed assembly and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369088A (en) * | 2015-11-18 | 2016-03-02 | 宁波市鄞州银鑫铝业有限公司 | Valve core |
| CN106399727A (en) * | 2016-11-28 | 2017-02-15 | 宁波瑞铭机械有限公司 | Needle bar linking rod |
| CN106498224A (en) * | 2016-11-28 | 2017-03-15 | 宁波瑞铭机械有限公司 | A kind of cloth pressing foot |
| CN115262101A (en) * | 2022-08-02 | 2022-11-01 | 南京苏美达服装技术研发有限公司 | Computer flush joint machine convenient to operation |
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| CN1263958A (en) * | 1999-01-21 | 2000-08-23 | 重机公司 | Cloth feeding device for sewing machine |
| CN1376820A (en) * | 2001-03-23 | 2002-10-30 | 重机公司 | Cloth feeder of sewing machine |
| US20100212563A1 (en) * | 2009-02-26 | 2010-08-26 | Brother Kogyo Kabushiki Kaisha | Sewing machine with detachable needle plate |
| CN203333975U (en) * | 2013-07-18 | 2013-12-11 | 浙江恒强针车集团有限公司 | Cloth feeding regulating mechanism of sewing machine |
| CN103695732A (en) * | 2013-11-26 | 2014-04-02 | 宁波瑞铭机械有限公司 | Connecting rod of sewing machine and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1263958A (en) * | 1999-01-21 | 2000-08-23 | 重机公司 | Cloth feeding device for sewing machine |
| CN1376820A (en) * | 2001-03-23 | 2002-10-30 | 重机公司 | Cloth feeder of sewing machine |
| US20100212563A1 (en) * | 2009-02-26 | 2010-08-26 | Brother Kogyo Kabushiki Kaisha | Sewing machine with detachable needle plate |
| CN203333975U (en) * | 2013-07-18 | 2013-12-11 | 浙江恒强针车集团有限公司 | Cloth feeding regulating mechanism of sewing machine |
| CN103695732A (en) * | 2013-11-26 | 2014-04-02 | 宁波瑞铭机械有限公司 | Connecting rod of sewing machine and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369088A (en) * | 2015-11-18 | 2016-03-02 | 宁波市鄞州银鑫铝业有限公司 | Valve core |
| CN106399727A (en) * | 2016-11-28 | 2017-02-15 | 宁波瑞铭机械有限公司 | Needle bar linking rod |
| CN106498224A (en) * | 2016-11-28 | 2017-03-15 | 宁波瑞铭机械有限公司 | A kind of cloth pressing foot |
| CN115262101A (en) * | 2022-08-02 | 2022-11-01 | 南京苏美达服装技术研发有限公司 | Computer flush joint machine convenient to operation |
| CN115262101B (en) * | 2022-08-02 | 2023-05-30 | 南京苏美达服装技术研发有限公司 | Computer flush joint machine convenient to operation |
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|---|---|
| CN104294483B (en) | 2016-05-11 |
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