阅读说明：本技术 一种冲孔立绵模杯及其制作方法 (Punching vertical cotton mold cup and manufacturing method thereof ) 是由 张荣龙 刘仔云 于 2019-10-31 设计创作，主要内容包括：本发明公开一种冲孔立绵模杯及制作方法,其包括第一复合裁片和第二复合裁片以及设置在第一复合裁片和第二复合裁片之间的胶网,第一复合裁片包括第一立绵、设置在第一立绵一表面的第一网纱以及设置在第一立绵另一表面的第一佳积布；第二复合裁片包括第二立绵、设置在第二立绵的一表面的第二网纱以及设置在第二立绵的另一表面的第二佳积布,第二佳积布与胶网贴合；冲孔立绵模杯上开设有多个冲孔,冲孔向模杯的厚度方向延伸。本发明提供的冲孔立绵模杯,在立绵模杯水洗后不坍陷,且杯面不起皱；对模杯进行冲孔,大大提高模杯的透气性,并能减轻整体重量,达到整个模杯轻盈更透气；穿着舒适,手感好且使用寿命长。(The invention discloses a punching vertical cotton mold cup and a manufacturing method thereof, wherein the punching vertical cotton mold cup comprises a first composite cutting piece, a second composite cutting piece and an adhesive net arranged between the first composite cutting piece and the second composite cutting piece, wherein the first composite cutting piece comprises first vertical cotton, first gauze arranged on one surface of the first vertical cotton and first long cloth arranged on the other surface of the first vertical cotton; the second composite cut piece comprises second vertical cotton, second gauze arranged on one surface of the second vertical cotton and second accumulated cloth arranged on the other surface of the second vertical cotton, and the second accumulated cloth is attached to the rubber net; the punching vertical cotton mold cup is provided with a plurality of punching holes, and the punching holes extend towards the thickness direction of the mold cup. The punching vertical cotton mold cup provided by the invention does not collapse after being washed by water, and the cup surface does not wrinkle; the die cup is punched, so that the air permeability of the die cup is greatly improved, the whole weight can be reduced, and the whole die cup is light and breathable; comfortable to wear, good in hand feeling and long in service life.)

1. A punching vertical cotton mold cup is characterized by comprising a first composite cutting piece, a second composite cutting piece and an adhesive net (5) arranged between the first composite cutting piece and the second composite cutting piece, wherein the first composite cutting piece comprises a first vertical cotton (1), a first gauze (2) arranged on one surface of the first vertical cotton (1) and a first fine cloth (3) arranged on the other surface of the first vertical cotton (1); the second composite cut piece comprises second vertical cotton (6), second gauze (7) arranged on one surface of the second vertical cotton (6) and second cloth (8) arranged on the other surface of the second vertical cotton (6), and the second cloth (8) is attached to the rubber net (5); the punching vertical cotton mold cup is provided with a plurality of punching holes (9).

2. A punching vertical sponge mold cup according to claim 1, characterized in that a cut sponge core (4) is further arranged between the first composite cut piece and the adhesive net (5).

3. A punching vertical cotton die cup according to claim 1, characterized in that the aperture range of the first gauze (2) and the second gauze (7) is set to 0.5mm-1mm, and the square gram weight of the first gauze (2) and the second gauze (7) is 30g-50 g.

4. A punching vertical cotton die cup according to claim 3, characterized in that the first gauze (2) and the second gauze (7) both comprise terylene and spandex, wherein the terylene accounts for 85-92% by weight, and the spandex accounts for 8-15% by weight.

5. A punching vertical cotton mold cup according to claim 1, characterized in that the first and second top cotton cloths (3, 8) are all polyester fabrics, and the square gram weights of the first and second top cotton cloths (3, 8) are both 90-170 g.

6. A punching vertical sponge mold cup according to claim 1, characterized in that the rubber net (5) is a net structure, the rubber net (5) is made of PU material, and the melting point range is 160-170 ℃.

7. A punching vertical cotton mold cup according to claim 1, characterized in that the first gauze (2) is attached to the first vertical cotton (1) by glue, and the first denim (3) is attached to the first vertical cotton (1) by glue; the second gauze (7) and the second vertical cotton (6) are attached through glue, and the second long-distance cloth (8) and the second vertical cotton (6) are attached through glue.

8. A punching vertical cotton mold cup according to claim 1, characterized in that the thickness range of the first vertical cotton (1) and the second vertical cotton (6) is set to be 2mm-4 mm.

9. A method of making a punched vertical foam molding cup according to any one of claims 1 to 8, comprising the steps of:

s1, design: designing the cup shape of the required mold cup;

s2, processing a die: processing two sets of dies according to the cup shape of the die cup designed in the step S1, wherein the dies comprise a set of hot pressing die and a set of cold pressing die, and the hot pressing die and the cold pressing die both comprise a male die positioned above and a female die positioned below;

s3, manufacturing composite cut pieces: the first composite cutting piece and the second composite cutting piece are manufactured according to the cup shape of the mold designed in the step S1, and the manufacturing method specifically comprises the following steps: attaching a first gauze to one side of the first vertical cotton and attaching a first denim to the other side of the first vertical cotton to form a first composite cut piece; attaching a second gauze to one surface of the second vertical cotton, and attaching a second jean to the other surface of the second vertical cotton to form a second composite cut piece;

s4, bonding: sequentially attaching a PU (polyurethane) adhesive net, a cut cotton core and a first composite cutting piece to the second gauze from bottom to top in the step S3, wherein one side of the first composite cutting piece, which is provided with the first fine cloth, is attached to the cut cotton core;

s5, heating presetting: placing the first composite cut piece and the second composite cut piece which are attached in the step S4 into the hot-pressing mold, wherein the first composite cut piece is close to the male mold, the second composite cut piece is close to the female mold, and after the mold is closed, the contact type heating presetting is carried out;

s6, cold pressing and shaping: transferring the first composite cut piece and the second composite cut piece which are subjected to heating and presetting in the step S5 to a cold pressing mold, wherein the first composite cut piece is close to the male mold, the second composite cut piece is close to the female mold, and low-temperature mold pressing and shaping are performed after mold closing;

s7, trimming: trimming the mold cup subjected to the low-temperature mold pressing in the step S6;

s8, punching: and punching the die cup trimmed in the step S7.

10. The method for manufacturing a punching vertical sponge mold cup as claimed in claim 9, wherein in step S5, the temperature range during the heating presetting is set to 170-185 ℃, and the heating time is set to 60-100 seconds; in step S6, the temperature range of the low temperature molding is set to 0-30 degrees, and the time for the low temperature molding is set to 20-50 seconds.

Technical Field

The invention relates to the field of mold cup production systems, in particular to a punching vertical foam mold cup and a manufacturing method thereof.

Background

At present, most of bra cups on the market are made of sponge formed by foaming polyurethane, the main reason is that the sponge is soft and comfortable, the shape retention is good after multiple times of washing, but the sponge cups are poor in air permeability, and particularly have certain compression amount after being subjected to high-temperature mould pressing, so that the sponge cups are more difficult to ventilate, are more stuffy after being worn for a long time, and are easier to sweat particularly in summer. Some manufacturers punch holes in the sponge cups, which increases the breathability of the sponge cups to some extent. However, the most important disadvantage of the sponge is that the sponge is not environment-friendly, and in the process of foaming polyurethane into sponge, a small amount of auxiliary agent (mainly TDI) remains, which can cause the sponge to yellow and also has certain harm to human body, so that the sponge cups are gradually replaced by cups made of other materials which are more environment-friendly, safe and breathable.

The vertical cotton is a three-dimensional structure material formed by repeatedly folding a fiber net and then baking at high temperature to enable low-melting-point fibers in the fiber net to be fused and adhered with high-melting-point fiber yarns around the fiber net, has good air permeability and soft hand feeling, more importantly, is free from any chemical agent, cannot be yellowed like a sponge, and is an ideal material for pressing a mold cup. At present, a plurality of vertical foam mold cups are also available on the market, but the defects that collapse and deformation occur after water washing and the cup surface is creased exist generally. Some manufacturers can attach a thicker sandwich on the vertical cotton and then mould the sandwich into a mold cup, so that the defects are only covered, the symptoms are treated, the root causes are not treated, the material cost is increased, meanwhile, the whole mold cup cannot be subjected to ventilation reduction treatment, for example, in order to enable the whole mold cup to be lighter and breathable, the mold cup is subjected to local punching (the sandwich punching can damage the structure of the sandwich, and the silk inside can be exposed out of the hole to tie people). Therefore, a more reasonable vertical cotton mold cup is needed, which can not only solve the defects of collapse and corrugation of the vertical cotton mold cup in water washing, but also perform air-permeable decrement treatment without affecting the water washing effect.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a punching vertical cotton mold cup, which can overcome the defects of washing collapse and wrinkling of the vertical cotton mold cup and can also perform ventilation reduction treatment, and the technical scheme is as follows:

the invention provides a punching vertical cotton mold cup which comprises a first composite cutting piece, a second composite cutting piece and an adhesive net arranged between the first composite cutting piece and the second composite cutting piece, wherein the first composite cutting piece comprises first vertical cotton, first gauze arranged on one surface of the first vertical cotton and first long cloth arranged on the other surface of the first vertical cotton; the second composite cut piece comprises second vertical cotton, second gauze arranged on one surface of the second vertical cotton and second long cloth arranged on the other surface of the second vertical cotton, and the second long cloth is attached to the rubber net; and a plurality of punched holes are formed in the punching vertical cotton mold cup.

Furthermore, a cotton cutting core is arranged between the first composite cutting piece and the rubber net.

Further, the aperture range of the first gauze and the second gauze is set to be 0.5mm-1mm, and the square gram weight of the first gauze and the second gauze is 30g-50 g.

Further, the first gauze and the second gauze both comprise terylene and spandex, wherein the mass percentage content of the terylene is 85-92%, and the mass percentage content of the spandex is 8-15%.

Further, the first and second denim are all polyester fabrics, and the square gram weights of the first and second denim are both 90-170 g.

Further, the rubber net is of a net structure, is made of PU material and has a melting point range of 160-170 ℃.

Further, the first gauze is attached to the first vertical cotton through glue, and the first denim is attached to the first vertical cotton through glue; the second gauze is attached to the second vertical cotton through glue, and the second denim is attached to the second vertical cotton through glue;

further, the thickness range of the first vertical cotton and the second vertical cotton is set to be 2mm-4 mm.

The invention also provides a manufacturing method of the punching vertical cotton mold cup, which comprises the following steps:

s1, design: designing the cup shape of the required mold cup;

s2, processing a die: processing two sets of dies according to the cup shape of the die cup designed in the step S1, wherein the dies comprise a set of hot pressing die and a set of cold pressing die, and the hot pressing die and the cold pressing die both comprise a male die positioned above and a female die positioned below;

s3, manufacturing composite cut pieces: the first composite cutting piece and the second composite cutting piece are manufactured according to the cup shape of the mold designed in the step S1, and the manufacturing method specifically comprises the following steps: attaching a first gauze to one side of the first vertical cotton and attaching a first denim to the other side of the first vertical cotton to form a first composite cut piece; attaching a second gauze to one surface of the second vertical cotton, and attaching a second jean to the other surface of the second vertical cotton to form a second composite cut piece;

s4, bonding: sequentially attaching a PU (polyurethane) adhesive net, a cut cotton core and a first composite cutting piece to the second gauze from bottom to top in the step S3, wherein one side of the first composite cutting piece, which is provided with the first fine cloth, is attached to the cut cotton core;

s5, heating presetting: placing the first composite cut piece and the second composite cut piece which are attached in the step S4 into the hot-pressing mold, wherein the first composite cut piece is close to a convex mold of the hot-pressing mold, the second composite cut piece is close to a concave mold of the hot-pressing mold, and after the mold is closed, the contact type heating presetting is carried out;

s6, cold pressing and shaping: transferring the first composite cut piece and the second composite cut piece which are subjected to heating and presetting in the step S5 to a cold pressing die, wherein the first composite cut piece is close to a male die of the cold pressing die, the second composite cut piece is close to a female die of the cold pressing die, and low-temperature die pressing and shaping are performed after die assembly;

s7, trimming: trimming the mold cup subjected to the low-temperature mold pressing in the step S6;

s8, punching: and punching the die cup trimmed in the step S7.

Further, in the step S5, the temperature range during the heating presetting is set as 170-185 ℃, and the heating time is set as 60-100 seconds; in step S6, the temperature range of the low temperature molding is set to 0-30 degrees, and the time for the low temperature molding is set to 20-50 seconds.

The technical scheme provided by the invention has the following beneficial effects:

a. the punching vertical cotton mold cup provided by the invention does not collapse after being washed by water, and the cup surface does not wrinkle; the die cup is punched, so that the air permeability of the die cup is greatly improved, the whole weight can be reduced, and the whole die cup is light and breathable;

b. the punching vertical cotton mold cup provided by the invention is comfortable to wear, good in hand feeling and long in service life.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a cross-sectional view of a first composite panel of a punched vertical foam molding cup provided in an embodiment of the present invention;

FIG. 2 is a side view of a first composite panel of a punched vertical foam molding cup provided in an embodiment of the present invention;

FIG. 3 is a sectional view of a punched vertical foam molding cup provided in an embodiment of the present invention;

FIG. 4 is a cross-sectional view of an unpunched vertical foam molding cup provided by an embodiment of the invention;

FIG. 5 is a cross-sectional view of a punched vertical foam molding cup according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a punched vertical foam molding cup according to an embodiment of the present invention;

FIG. 7 is an exploded view of a punching vertical cotton mold cup provided by an embodiment of the invention during heating presetting or cold pressing;

fig. 8 is a side view of a punched vertical cotton mold cup provided by an embodiment of the invention after cold pressing.

Wherein the reference numerals include: 1-first vertical cotton, 2-first gauze, 3-first denim, 4-cut cotton core, 5-rubber net, 6-second vertical cotton, 7-second gauze, 8-second denim, 9-punching, 10-male die and 11-female die.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or device.

In an embodiment of the invention, a punching vertical cotton mold cup is provided, and the specific structure of the punching vertical cotton mold cup is shown in fig. 3 and fig. 4, the mold cup comprises a first composite cutting piece, a second composite cutting piece and an adhesive net 5 arranged between the first composite cutting piece and the second composite cutting piece, the first composite cutting piece comprises a first vertical cotton 1, a first gauze 2 arranged on one surface of the first vertical cotton 1 and a first galois cloth 3 arranged on the other surface of the first vertical cotton 1, and the structure of the first composite cutting piece is shown in fig. 1 and fig. 2; the second composite cutting piece comprises a second vertical cotton 6, a second gauze 7 arranged on one surface of the second vertical cotton 6 and a second fine cloth 8 arranged on the other surface of the second vertical cotton 6, wherein the second fine cloth 8 is attached to the rubber net 5, and in the figure 4, a first fine cloth 3, the rubber net 5 and a second fine cloth 8 are arranged between the first vertical cotton 1 and the second vertical cotton 6 and are not marked in the figure. Various parameters of the first composite cut piece and the second composite cut piece, such as the fine cloth, the vertical cotton and the gauze, can be set according to requirements and can be the same or different.

The thickness ranges of the first vertical cotton 1 and the second vertical cotton 6 are set to be 2mm-4mm, the thicknesses of the first vertical cotton 1 and the second vertical cotton 6 are determined according to the required cup-shaped thickness, normally about 2mm, but not more than 4mm, and the hand feeling and the product quality are affected after the thicknesses of the first vertical cotton and the second vertical cotton exceed 4 mm.

The aperture range of the first gauze 2 and the second gauze 7 is set to be 0.5mm-1mm, and the square gram weight of the first gauze 2 and the second gauze 7 is 30g-50 g. The first gauze 2 and the second gauze 7 both comprise terylene and spandex, wherein the mass percentage content range of the terylene is 85-92%, and the mass percentage content range of the spandex is 8-15%. The first and second screen yarns 2, 7 may also be 100% polyester. The warp direction stretching (35N tension test) of the first gauze 2 and the second gauze 7 is 150% -170%, the weft direction stretching (35N tension test) is 50% -70%, the elastic and large number of holes are formed, after the vertical cotton is attached, the actual contact area is small, so that after mould pressing and cooling shrinkage, the vertical cotton cannot be brought to shrink, meanwhile, the vertical cotton is attached, the vertical cotton is prevented from being fluffy due to washing, the cup surface of the vertical cotton is kept smooth and flat, and the vertical cotton is prevented from being fluffy and not wrinkling after washing.

The first and second top cloths 3 and 8 are all polyester fabrics (100% of polyester), and the top cloths belong to one kind of knitted fabrics and are commonly called T-cloths; the square gram weights of the first and second canopies 3 and 8 are both 90-170 g, and preferably 90-110 g. The well long-pending cloth has advantages such as travelling comfort, security, environmental protection, and the well long-pending cloth plays the effect of supporting immediately continuously in this scheme.

The rubber net 5 is of a net structure, the rubber net 5 is made of PU material, and the melting point range of the rubber net is 160-170 ℃. The rubber net 5 has certain strength, and the rubber net 5 is arranged between the first cloth and the second cloth, so that the whole mold cup is well supported, the collapse of the whole mold cup is prevented in the washing process, and the effective capacity of the mold cup is kept.

The first gauze 2 is attached to the first vertical cotton 1 through glue, and the first Jiajibu 3 is attached to the first vertical cotton 1 through glue; the second gauze 7 is attached to the second vertical cotton 6 through glue, and the second cloth 8 is attached to the second vertical cotton 6 through glue. The glue is PU glue. The higher authority of adhesive tape 5 all has spouted PU glue with following, cut need not spout glue on the cotton core, spout PU glue on the first good long-pending cloth, can make first compound cut-parts, cut cotton core and adhesive tape and can laminate together, and spout PU glue on the second good long-pending cloth, can make the laminating of the second good long-pending cloth of the compound cut-parts of adhesive tape and second, and then form whole mold cup after making the laminating.

In another embodiment provided by the invention, a cut cotton core 4 is further arranged between the first composite cut piece and the adhesive net 5, and the cut cotton core 4 is made of vertical cotton and is used for increasing the overall thickness of the mold cup and can be used or not used. Because the thickness of the mold cups is different, the hand feeling of the whole mold cup is consistent by the thickness and the shape of the cut cotton core. The shape of the cut cotton core 4 is selected according to the cup shape of the mold cup, the cut cotton core 4 is provided with a bulge, so that the whole mold cup is easy to form during mold pressing, and the cut cotton core 4 has two structural forms, wherein the first structural form is provided with an arc bulge, such as an arc bulge or a hemispherical bulge, and the other structural form is provided with a step bulge, namely the bulge is a trapezoid or conical bulge.

Furthermore, a plurality of punched holes 9 are formed in the punched hole vertical cotton mold cup, as shown in fig. 5 and 6, the punched holes extend in the thickness direction of the mold cup, namely, the punched holes penetrate through the first composite cutting piece and the second composite cutting piece, the whole weight of the mold cup is reduced, and the air permeability of the whole mold cup is improved. The diameter of the punched hole is not suitable to be too large and is within 5 mm; the number and the positions of the punched holes are selected and determined according to actual requirements.

The invention also provides a manufacturing process of the punching vertical cotton mold cup, which is shown in fig. 7 and 8 and comprises the following steps:

s1, design: designing the cup shape of the required mold cup;

s2, processing a die: processing two sets of dies according to the cup shape of the die designed in the step S1, wherein the dies comprise a set of hot pressing dies and a set of cold pressing dies, and the hot pressing dies and the cold pressing dies both comprise a male die 10 positioned above and a female die 11 positioned below;

s3, manufacturing composite cut pieces: the first composite cutting piece and the second composite cutting piece are manufactured according to the cup shape of the mold designed in the step S1, and the manufacturing method specifically comprises the following steps: spraying PU glue on one surface of the first vertical cotton to attach to a first gauze, spraying PU glue on the other surface of the first vertical cotton to attach to a first denim to form a first composite cut piece, wherein the attachment needs to be uniform and smooth; spraying PU glue on one surface of the second vertical cotton to be attached to a second gauze, spraying PU glue on the other surface of the second vertical cotton to be attached to a second piece of cloth to form a second composite cut piece, wherein the attachment needs to be uniform and smooth;

s4, bonding: if the cotton core needs to be cut, the corresponding cut cotton core is cut according to the thickness requirement of the mold cup, when the cotton core needs to be cut, in the step S3, the second gauze is sequentially adhered with the rubber net, the cut cotton core and the first composite cutting piece from bottom to top, and one side of the first composite cut piece with the first fine accumulated cloth is attached with the cut cotton core, one side of the cut cotton core with the bulge is attached with one side of the first composite cut piece with the first fine accumulated cloth (or one side of the cut cotton core far away from the bulge is attached with one side of the first composite cut piece with the first fine accumulated cloth), the upper surface and the lower surface of the rubber net are both sprayed with PU glue, the cut cotton core is not required to be sprayed with glue, the first fine cloth is sprayed with the PU glue, so that the first composite cutting piece, the cut cotton core and the rubber net can be adhered together, the second cloth is sprayed with PU glue, so that the adhesive net can be attached to the second cloth of the second composite cut piece, and an integral mold cup is formed after the adhesive net is attached; the parameter during the pasting is that the gluing amount of the glue is 10-20g/m²Preferably 12g/m²(ii) a The compounding speed is 20-35m/min, preferably 30 m/min;

s5, heating presetting: placing the first composite cut piece and the second composite cut piece which are attached in the step S4 into a hot-pressing die, wherein the first composite cut piece is close to a male die of the hot-pressing die, the second composite cut piece is close to a female die of the hot-pressing die, a starting button is pressed, and the male die and the female die of the hot-pressing die are subjected to contact heating presetting after being matched, wherein the heating time is set to be 60-100 seconds, preferably 60 seconds; the presetting temperature range is set to 170-185 ℃, preferably 175-180 ℃;

s6, cold pressing and shaping: transferring the first composite cut piece and the second composite cut piece which are subjected to heating presetting in the step S5 to a cold-pressing die (after the heating time is reached, raising a convex die of the hot-pressing die, and moving the concave die to another cold-pressing position with the same model), wherein the first composite cut piece is close to the convex die of the cold-pressing die, the second composite cut piece is close to the concave die of the cold-pressing die, the convex die and the concave die of the cold-pressing die are subjected to low-temperature die pressing and shaping after being matched, the convex die and the concave die are matched to press vertical cotton, so that the heated high-temperature first composite cut piece and the heated second composite cut piece lose temperature in the low-temperature or cold die, and thus a die cup shape completely consistent with the die is shaped, and the die;

s7, trimming: trimming the mold cup subjected to low-temperature mold pressing in the step S6, and trimming the edge of the redundant part of the mold cup;

s9, punching: and partially punching the die cup trimmed in the step S7.

The preparation method provided by the invention is easy to operate and high in production efficiency. According to the invention, the gauze, the Jiajibu and the vertical cotton are compounded to form the composite cut pieces, and the vertical cotton mold cup is prepared by adding the PU adhesive net between the two composite cut pieces, and the vertical cotton mold cup is not wrinkled or collapsed after being washed by water and can be directly subjected to local punching on the mold cup, so that the air permeability of the mold cup is improved, and the weight of the mold cup is reduced; meanwhile, the clothes are comfortable to wear, good in hand feeling and long in service life.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.