A kind of damp and hot formation system of wooden propeller and method
Technical field
The present invention relates to the preparation technology field of propeller, more particularly to a kind of damp and hot formation system of wooden propeller and side
Method.
Background technology
The processing method of current wooden propeller mainly has hand grinding, and CNC processing, the former workload is big, processing speed
Degree is slow, and low precision, homogeneity of product is poor, and the latter increases compared to the former Product Precision, homogeneity of product, but processing effect
Rate is low, energy consumption is big, and CNC equipment prices are of a relatively high, and production cost input is big.
The content of the invention
To solve technical problem present in background technology, the present invention propose a kind of wooden damp and hot formation system of propeller and
Method, technique is simple, easy to operate, and production cost input is low, it is adaptable to produce ultralight small-sized wooden propeller in enormous quantities, prepares
Obtained propeller arrangement is stable, and intensity is high, and rigidity is good.
A kind of wooden damp and hot formation system of propeller proposed by the present invention, including:Feed arrangement, slicing device, boiling dress
Put, molding device, drying device, stopping means, collection device, control device;
Feed arrangement is used to beech sending into slicing device;
Slicing device obtains beech thin slice after being used for beech section;
Steaming plant is used to carry out cooking liquor boiling softening to beech thin slice;
Molding device is used for hot-forming to the beech thin slice progress softened;
Drying device is used to processing is dried to hot-forming good beech thin slice;
Stopping means is used to carry out ordered arrangement to dried beech thin slice;
Collection device is used to be collected the beech thin slice of spacing outflow;
Feed arrangement sequentially passes through sanding apparatus, steaming plant, molding device, drying device, stopping means, collection dress
Put, control device is connected with sanding apparatus, steaming plant, molding device, drying device and stopping means, it is fed by controlling
The charging rate of device controls the beech thin slice can to enter one by one in sanding apparatus, and under control device effect, realizes
Sanding apparatus, steaming plant and molding device are processed to the beech thin slice of entrance successively, then in the effect of control device
Under, the beech thin slice processed is entered in collection device in order by stopping means.
A kind of wooden damp and hot forming method of propeller of the present invention, comprises the following steps:Charging, section, boiling, molding,
Dry, spacing and collection;
S1, charging:The beech for treating slice is sent out using feed arrangement;
S2, section:The beech of entrance cut into slices obtaining beech thin slice using slicing device;
S3, boiling:Cooking liquor boiling is carried out to the beech thin slice after section using steaming plant;
S4, molding:The beech thin slice after boiling softens is carried out using molding device hot-forming;
S5, drying:Processing is dried to hot-forming beech thin slice using drying device;
It is S6, spacing:Ordered arrangement is carried out to the beech thin slice after drying process using stopping means;
S7, collection:The beech thin slice after spacing is collected using collection device.
Preferably, in S2, the thickness of beech thin slice is 1-3mm.
Preferably, in S3, the temperature of boiling is 70-80 DEG C, and the time of boiling is 10-20h.
Preferably, in S3, the raw material of cooking liquor includes by weight:4-9 parts of nano silicon, nano-calcium carbonate 2-5
Part, 1-6 parts of nano titanium oxide, 4-8 parts of polyvinylpyrrolidone, six inclined sodium sulphate 2-5 parts, hexadecyl trimethoxy chlorinations
2-5 parts of ammonium, 1-4 parts of tetraethyl orthosilicate, 3-5 parts of polybutylene terephthalate, 2-5 parts of polyoxyethylene alkylphenol ether, 12
1-3 parts of alkyl dimethyl betaine, 2-5 parts of lauryl sodium sulfate, 1-3 parts of zinc stearate, 3-6 parts of calcium stearate, chlorination stone
3-6 parts of wax, 1-4 parts of polyglyceryl fatty acid ester, 2-5 parts of dimethyl silicone polymer, 1-4 parts of disodium ethylene diamine tetraacetate, poly- second two
4-8 parts of alcohol, 5-15 parts of deionized water.
Preferably, in S4, hot-forming temperature is 140-160 DEG C, and the hot-forming time is 2-3h.
Preferably, in S5, dry temperature is 120-140 DEG C, and the dry time is 40-60min.
A kind of wooden damp and hot formation system of propeller of the present invention, including:Feed arrangement, slicing device, steaming plant, mould
Pressure device, drying device, stopping means, collection device, control device.Feed arrangement is used to beech sending into slicing device;Cut
Sheet devices obtain beech thin slice after being used for beech section;Steaming plant is used to carry out cooking liquor boiling softening to beech thin slice;Mould
Pressure device is used for hot-forming to the beech thin slice progress softened;Drying device is used to enter hot-forming good beech thin slice
Row drying process;Stopping means is used to carry out ordered arrangement to dried beech thin slice;Collection device is used for spacing outflow
Beech thin slice be collected;Feed arrangement sequentially passes through sanding apparatus, steaming plant, molding device, drying device, spacing dress
Put, collection device, control device is connected with sanding apparatus, steaming plant, molding device, drying device and stopping means, and it leads to
Cross the charging rate of control feed arrangement to control beech thin slice to enter in sanding apparatus one by one, and in control device make
Under, realize that sanding apparatus, steaming plant and molding device are processed to the beech thin slice of entrance successively, then in control dress
In the presence of putting, the beech thin slice processed is entered in collection device in order by stopping means.Rely on above-mentioned wood
The damp and hot formation system of propeller processed, has obtained the damp and hot forming method of wooden propeller, including charging, section, boiling, molding, dry
It is dry, spacing and collect, wherein during boiling, the raw material of the cooking liquor used include nano silicon, nano-calcium carbonate,
Nano titanium oxide, polyvinylpyrrolidone, six inclined sodium sulphate, hexadecyl trimethoxy ammonium chloride, tetraethyl orthosilicate, poly- pair
Terephtha-late, polyoxyethylene alkylphenol ether, dodecyldimethylammonium hydroxide inner salt, lauryl sodium sulfate, stearic acid
Zinc, calcium stearate, chlorinated paraffin, polyglyceryl fatty acid ester, dimethyl silicone polymer, disodium ethylene diamine tetraacetate, polyethylene glycol
And deionized water.So that well-done beech thin slice softening better quality, more preferably, intensity is higher for toughness.The technique letter of the present invention
Single, easy to operate, production cost input is low, it is adaptable to produce ultralight small-sized wooden propeller, the spiral prepared in enormous quantities
Paddle structure is stable, and intensity is high, and rigidity is good.
Brief description of the drawings
Fig. 1 is a kind of flow chart of the wooden damp and hot formation system of propeller proposed by the present invention;
Fig. 2 is a kind of flow chart of the wooden damp and hot forming method of propeller proposed by the present invention.
Embodiment
The present invention is described in detail with reference to specific embodiment, it should be appreciated that embodiment is served only for illustrating this hair
It is bright, rather than for limiting the invention, any modification made on the basis of the present invention, equivalent substitution etc. are in this hair
In bright protection domain.
As depicted in figs. 1 and 2, Fig. 1 is a kind of flow chart of the wooden damp and hot formation system of propeller proposed by the present invention;Figure
2 be a kind of flow chart of the wooden damp and hot forming method of propeller proposed by the present invention.
Reference picture 1, a kind of wooden damp and hot formation system of propeller proposed by the present invention, including:Feed arrangement, section dress
Put, steaming plant, molding device, drying device, stopping means, collection device, control device;
Feed arrangement is used to beech sending into slicing device;
Slicing device obtains beech thin slice after being used for beech section;
Steaming plant is used to carry out cooking liquor boiling softening to beech thin slice;
Molding device is used for hot-forming to the beech thin slice progress softened;
Drying device is used to processing is dried to hot-forming good beech thin slice;
Stopping means is used to carry out ordered arrangement to dried beech thin slice;
Collection device is used to be collected the beech thin slice of spacing outflow;
Feed arrangement sequentially passes through sanding apparatus, steaming plant, molding device, drying device, stopping means, collection dress
Put, control device is connected with sanding apparatus, steaming plant, molding device, drying device and stopping means, it is fed by controlling
The charging rate of device controls the beech thin slice can to enter one by one in sanding apparatus, and under control device effect, realizes
Sanding apparatus, steaming plant and molding device are processed to the beech thin slice of entrance successively, then in the effect of control device
Under, the beech thin slice processed is entered in collection device in order by stopping means.
A kind of reference picture 2, wooden damp and hot forming method of propeller of the invention, comprises the following steps:Charging, section, steaming
Boil, be molded, it is dry, spacing and collect;
S1, charging:The beech for treating slice is sent out using feed arrangement;
S2, section:The beech of entrance cut into slices obtaining beech thin slice using slicing device;
S3, boiling:Cooking liquor boiling is carried out to the beech thin slice after section using steaming plant;
S4, molding:The beech thin slice after boiling softens is carried out using molding device hot-forming;
S5, drying:Processing is dried to hot-forming beech thin slice using drying device;
It is S6, spacing:Ordered arrangement is carried out to the beech thin slice after drying process using stopping means;
S7, collection:The beech thin slice after spacing is collected using collection device.
Embodiment 1
The flow chart for combining a kind of Fig. 1 wooden damp and hot formation system of propeller in embodiment 1 below describes wood in detail
The damp and hot forming method of propeller processed.
Reference picture 1, a kind of wooden damp and hot formation system of propeller proposed by the present invention, including:Feed arrangement, section dress
Put, steaming plant, molding device, drying device, stopping means, collection device, control device;
Feed arrangement is used to beech sending into slicing device;
Slicing device obtains beech thin slice after being used for beech section;
Steaming plant is used to carry out cooking liquor boiling softening to beech thin slice;
Molding device is used for hot-forming to the beech thin slice progress softened;
Drying device is used to processing is dried to hot-forming good beech thin slice;
Stopping means is used to carry out ordered arrangement to dried beech thin slice;
Collection device is used to be collected the beech thin slice of spacing outflow;
Feed arrangement sequentially passes through sanding apparatus, steaming plant, molding device, drying device, stopping means, collection dress
Put, control device is connected with sanding apparatus, steaming plant, molding device, drying device and stopping means, it is fed by controlling
The charging rate of device controls the beech thin slice can to enter one by one in sanding apparatus, and under control device effect, realizes
Sanding apparatus, steaming plant and molding device are processed to the beech thin slice of entrance successively, then in the effect of control device
Under, the beech thin slice processed is entered in collection device in order by stopping means.
The process of the wooden damp and hot forming method of propeller is carried out using the damp and hot formation system of the wooden propeller of the present embodiment 1
In, comprise the following steps:
S1, charging:The beech for treating slice is sent out using feed arrangement;
S2, section:The beech of entrance cut into slices obtaining beech thin slice using slicing device, the thickness of beech thin slice is
2mm;
S3, boiling:Cooking liquor boiling is carried out to the beech thin slice after section using steaming plant, the temperature of boiling is
75 DEG C, the time of boiling is 15h, and the raw material of cooking liquor includes by weight:6.5 parts of nano silicon, nano-calcium carbonate 3.5
Part, 3.5 parts of nano titanium oxide, 6 parts of polyvinylpyrrolidone, six inclined 3.5 parts of sodium sulphate, hexadecyl trimethoxy ammonium chloride
3.5 parts, 2.5 parts of tetraethyl orthosilicate, 4 parts of polybutylene terephthalate, 3.5 parts of polyoxyethylene alkylphenol ether, dodecyl
2 parts of dimethyl betaine, 3.5 parts of lauryl sodium sulfate, 2 parts of zinc stearate, 4.5 parts of calcium stearate, 4.5 parts of chlorinated paraffin,
2.5 parts of polyglyceryl fatty acid ester, 3.5 parts of dimethyl silicone polymer, 2.5 parts of disodium ethylene diamine tetraacetate, 6 parts of polyethylene glycol, go
10 parts of ionized water;
S4, molding:It is using molding device that the beech thin slice progress after boiling softens is hot-forming, it is hot-forming
Temperature is 140-160 DEG C, and the hot-forming time is 2-3h;
S5, drying:Processing hot-forming beech thin slice is dried using drying device, dry temperature is 130
DEG C, the dry time is 50min;
It is S6, spacing:Ordered arrangement is carried out to the beech thin slice after drying process using stopping means;
S7, collection:The beech thin slice after spacing is collected using collection device.
Embodiment 2
The flow chart for combining a kind of Fig. 1 wooden damp and hot formation system of propeller in example 2 below describes wood in detail
The damp and hot forming method of propeller processed.
Reference picture 1, a kind of wooden damp and hot formation system of propeller proposed by the present invention, including:Feed arrangement, section dress
Put, steaming plant, molding device, drying device, stopping means, collection device, control device;
Feed arrangement is used to beech sending into slicing device;
Slicing device obtains beech thin slice after being used for beech section;
Steaming plant is used to carry out cooking liquor boiling softening to beech thin slice;
Molding device is used for hot-forming to the beech thin slice progress softened;
Drying device is used to processing is dried to hot-forming good beech thin slice;
Stopping means is used to carry out ordered arrangement to dried beech thin slice;
Collection device is used to be collected the beech thin slice of spacing outflow;
Feed arrangement sequentially passes through sanding apparatus, steaming plant, molding device, drying device, stopping means, collection dress
Put, control device is connected with sanding apparatus, steaming plant, molding device, drying device and stopping means, it is fed by controlling
The charging rate of device controls the beech thin slice can to enter one by one in sanding apparatus, and under control device effect, realizes
Sanding apparatus, steaming plant and molding device are processed to the beech thin slice of entrance successively, then in the effect of control device
Under, the beech thin slice processed is entered in collection device in order by stopping means.
The process of the wooden damp and hot forming method of propeller is carried out using the damp and hot formation system of the wooden propeller of the present embodiment 2
In, comprise the following steps:
S1, charging:The beech for treating slice is sent out using feed arrangement;
S2, section:The beech of entrance cut into slices obtaining beech thin slice using slicing device, the thickness of beech thin slice is
1mm;
S3, boiling:Cooking liquor boiling is carried out to the beech thin slice after section using steaming plant, the temperature of boiling is
70 DEG C, the time of boiling is 20h, and the raw material of cooking liquor includes by weight:4 parts of nano silicon, 5 parts of nano-calcium carbonate,
1 part of nano titanium oxide, 8 parts of polyvinylpyrrolidone, six inclined 2 parts of sodium sulphate, 5 parts of hexadecyl trimethoxy ammonium chloride, just
1 part of silester, 5 parts of polybutylene terephthalate, 2 parts of polyoxyethylene alkylphenol ether, dodecyldimethylammonium hydroxide inner salt 3
It is part, 2 parts of lauryl sodium sulfate, 3 parts of zinc stearate, 3 parts of calcium stearate, 6 parts of chlorinated paraffin, 1 part of polyglyceryl fatty acid ester, poly-
5 parts of dimethyl siloxane, 1 part of disodium ethylene diamine tetraacetate, 8 parts of polyethylene glycol, 5 parts of deionized water;
S4, molding:It is using molding device that the beech thin slice progress after boiling softens is hot-forming, it is hot-forming
Temperature is 140 DEG C, and the hot-forming time is 3h;
S5, drying:Processing hot-forming beech thin slice is dried using drying device, dry temperature is 120
DEG C, the dry time is 60min;
It is S6, spacing:Ordered arrangement is carried out to the beech thin slice after drying process using stopping means;
S7, collection:The beech thin slice after spacing is collected using collection device.
Embodiment 3
The flow chart for combining a kind of Fig. 1 wooden damp and hot formation system of propeller in embodiment 3 below describes wood in detail
The damp and hot forming method of propeller processed.
Reference picture 1, a kind of wooden damp and hot formation system of propeller proposed by the present invention, including:Feed arrangement, section dress
Put, steaming plant, molding device, drying device, stopping means, collection device, control device;
Feed arrangement is used to beech sending into slicing device;
Slicing device obtains beech thin slice after being used for beech section;
Steaming plant is used to carry out cooking liquor boiling softening to beech thin slice;
Molding device is used for hot-forming to the beech thin slice progress softened;
Drying device is used to processing is dried to hot-forming good beech thin slice;
Stopping means is used to carry out ordered arrangement to dried beech thin slice;
Collection device is used to be collected the beech thin slice of spacing outflow;
Feed arrangement sequentially passes through sanding apparatus, steaming plant, molding device, drying device, stopping means, collection dress
Put, control device is connected with sanding apparatus, steaming plant, molding device, drying device and stopping means, it is fed by controlling
The charging rate of device controls the beech thin slice can to enter one by one in sanding apparatus, and under control device effect, realizes
Sanding apparatus, steaming plant and molding device are processed to the beech thin slice of entrance successively, then in the effect of control device
Under, the beech thin slice processed is entered in collection device in order by stopping means.
The process of the wooden damp and hot forming method of propeller is carried out using the damp and hot formation system of the wooden propeller of the present embodiment 3
In, comprise the following steps:
S1, charging:The beech for treating slice is sent out using feed arrangement;
S2, section:The beech of entrance cut into slices obtaining beech thin slice using slicing device, the thickness of beech thin slice is
3mm;
S3, boiling:Cooking liquor boiling is carried out to the beech thin slice after section using steaming plant, the temperature of boiling is
80 DEG C, the time of boiling is 10h, and the raw material of cooking liquor includes by weight:9 parts of nano silicon, 2 parts of nano-calcium carbonate,
6 parts of nano titanium oxide, 4 parts of polyvinylpyrrolidone, six inclined 5 parts of sodium sulphate, 2 parts of hexadecyl trimethoxy ammonium chloride, just
4 parts of silester, 3 parts of polybutylene terephthalate, 5 parts of polyoxyethylene alkylphenol ether, dodecyldimethylammonium hydroxide inner salt 1
It is part, 5 parts of lauryl sodium sulfate, 1 part of zinc stearate, 6 parts of calcium stearate, 3 parts of chlorinated paraffin, 4 parts of polyglyceryl fatty acid ester, poly-
2 parts of dimethyl siloxane, 4 parts of disodium ethylene diamine tetraacetate, 4 parts of polyethylene glycol, 15 parts of deionized water;
S4, molding:It is using molding device that the beech thin slice progress after boiling softens is hot-forming, it is hot-forming
Temperature is 160 DEG C, and the hot-forming time is 2h;
S5, drying:Processing hot-forming beech thin slice is dried using drying device, dry temperature is 140
DEG C, the dry time is 40min;
It is S6, spacing:Ordered arrangement is carried out to the beech thin slice after drying process using stopping means;
S7, collection:The beech thin slice after spacing is collected using collection device.
Embodiment 4
The flow chart for combining a kind of Fig. 1 wooden damp and hot formation system of propeller in example 4 below describes wood in detail
The damp and hot forming method of propeller processed.
Reference picture 1, a kind of wooden damp and hot formation system of propeller proposed by the present invention, including:Feed arrangement, section dress
Put, steaming plant, molding device, drying device, stopping means, collection device, control device;
Feed arrangement is used to beech sending into slicing device;
Slicing device obtains beech thin slice after being used for beech section;
Steaming plant is used to carry out cooking liquor boiling softening to beech thin slice;
Molding device is used for hot-forming to the beech thin slice progress softened;
Drying device is used to processing is dried to hot-forming good beech thin slice;
Stopping means is used to carry out ordered arrangement to dried beech thin slice;
Collection device is used to be collected the beech thin slice of spacing outflow;
Feed arrangement sequentially passes through sanding apparatus, steaming plant, molding device, drying device, stopping means, collection dress
Put, control device is connected with sanding apparatus, steaming plant, molding device, drying device and stopping means, it is fed by controlling
The charging rate of device controls the beech thin slice can to enter one by one in sanding apparatus, and under control device effect, realizes
Sanding apparatus, steaming plant and molding device are processed to the beech thin slice of entrance successively, then in the effect of control device
Under, the beech thin slice processed is entered in collection device in order by stopping means.
The process of the wooden damp and hot forming method of propeller is carried out using the damp and hot formation system of the wooden propeller of the present embodiment 4
In, comprise the following steps:
S1, charging:The beech for treating slice is sent out using feed arrangement;
S2, section:The beech of entrance cut into slices obtaining beech thin slice using slicing device, the thickness of beech thin slice is
1.5mm;
S3, boiling:Cooking liquor boiling is carried out to the beech thin slice after section using steaming plant, the temperature of boiling is
72 DEG C, the time of boiling is 17h, and the raw material of cooking liquor includes by weight:5 parts of nano silicon, 4 parts of nano-calcium carbonate,
2 parts of nano titanium oxide, 7 parts of polyvinylpyrrolidone, six inclined 3 parts of sodium sulphate, 4 parts of hexadecyl trimethoxy ammonium chloride, just
2 parts of silester, 4.5 parts of polybutylene terephthalate, 3 parts of polyoxyethylene alkylphenol ether, dodecyl dimethyl beet
2.5 parts of alkali, 3 parts of lauryl sodium sulfate, 2.5 parts of zinc stearate, 4 parts of calcium stearate, 5 parts of chlorinated paraffin, polyglycerol fatty acid
2 parts of ester, 4 parts of dimethyl silicone polymer, 2 parts of disodium ethylene diamine tetraacetate, 7 parts of polyethylene glycol, 8 parts of deionized water;
S4, molding:It is using molding device that the beech thin slice progress after boiling softens is hot-forming, it is hot-forming
Temperature is 145 DEG C, and the hot-forming time is 2.8h;
S5, drying:Processing hot-forming beech thin slice is dried using drying device, dry temperature is 125
DEG C, the dry time is 55min;
It is S6, spacing:Ordered arrangement is carried out to the beech thin slice after drying process using stopping means;
S7, collection:The beech thin slice after spacing is collected using collection device.
Embodiment 5
A kind of flow chart of wooden damp and hot formation system of propeller in embodiment 5 with reference to Fig. 1 describes wood in detail below
The damp and hot forming method of propeller processed.
Reference picture 1, a kind of wooden damp and hot formation system of propeller proposed by the present invention, including:Feed arrangement, section dress
Put, steaming plant, molding device, drying device, stopping means, collection device, control device;
Feed arrangement is used to beech sending into slicing device;
Slicing device obtains beech thin slice after being used for beech section;
Steaming plant is used to carry out cooking liquor boiling softening to beech thin slice;
Molding device is used for hot-forming to the beech thin slice progress softened;
Drying device is used to processing is dried to hot-forming good beech thin slice;
Stopping means is used to carry out ordered arrangement to dried beech thin slice;
Collection device is used to be collected the beech thin slice of spacing outflow;
Feed arrangement sequentially passes through sanding apparatus, steaming plant, molding device, drying device, stopping means, collection dress
Put, control device is connected with sanding apparatus, steaming plant, molding device, drying device and stopping means, it is fed by controlling
The charging rate of device controls the beech thin slice can to enter one by one in sanding apparatus, and under control device effect, realizes
Sanding apparatus, steaming plant and molding device are processed to the beech thin slice of entrance successively, then in the effect of control device
Under, the beech thin slice processed is entered in collection device in order by stopping means.
The process of the wooden damp and hot forming method of propeller is carried out using the damp and hot formation system of the wooden propeller of the present embodiment 5
In, comprise the following steps:
S1, charging:The beech for treating slice is sent out using feed arrangement;
S2, section:The beech of entrance cut into slices obtaining beech thin slice using slicing device, the thickness of beech thin slice is
2.5mm;
S3, boiling:Cooking liquor boiling is carried out to the beech thin slice after section using steaming plant, the temperature of boiling is
78 DEG C, the time of boiling is 13h, and the raw material of cooking liquor includes by weight:8 parts of nano silicon, 3 parts of nano-calcium carbonate,
5 parts of nano titanium oxide, 5 parts of polyvinylpyrrolidone, six inclined 4 parts of sodium sulphate, 3 parts of hexadecyl trimethoxy ammonium chloride, just
3 parts of silester, 3.5 parts of polybutylene terephthalate, 4 parts of polyoxyethylene alkylphenol ether, dodecyl dimethyl beet
1.5 parts of alkali, 4 parts of lauryl sodium sulfate, 1.5 parts of zinc stearate, 5 parts of calcium stearate, 4 parts of chlorinated paraffin, polyglycerol fatty acid
3 parts of ester, 3 parts of dimethyl silicone polymer, 3 parts of disodium ethylene diamine tetraacetate, 5 parts of polyethylene glycol, 12 parts of deionized water;
S4, molding:It is using molding device that the beech thin slice progress after boiling softens is hot-forming, it is hot-forming
Temperature is 155 DEG C, and the hot-forming time is 2.2h;
S5, drying:Processing hot-forming beech thin slice is dried using drying device, dry temperature is 135
DEG C, the dry time is 45min;
It is S6, spacing:Ordered arrangement is carried out to the beech thin slice after drying process using stopping means;
S7, collection:The beech thin slice after spacing is collected using collection device.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.