Waste recycling and packaging device for SMC glass fiber reinforced plastic processing

文档序号:1930235 发布日期:2021-12-07 浏览:18次 中文

阅读说明:本技术 一种用于smc玻璃钢加工的废料回收打包装置 (Waste recycling and packaging device for SMC glass fiber reinforced plastic processing ) 是由 许心勇 郭红娇 黄先军 王玉 王月 于 2021-09-08 设计创作,主要内容包括:本发明涉及回收打包技术领域,尤其是一种用于SMC玻璃钢加工的废料回收打包装置,针对现有技术中不方便对打包废料进行计量、不便出料的问题,现提出如下方案,其包括:包括:壳体,所述传动机构包括开设在壳体内侧壁上的滑槽、安装在滑槽内侧的第二齿条和第三齿条,所述壳体的内侧转动安装有放置板,所述放置板的顶部环形阵列安装有四个储料筒。本发明结构合理,结构稳定,操作简单,不仅能够对待压缩的废料进行计量,还能够有效的保证储料筒内侧的物料被排出,实现待压缩废料的进料、压缩、出料工序相连贯,有效的提高了打包效率,减轻了操作人员的劳动强度,易于推广使用。(The invention relates to the technical field of recycling and packaging, in particular to a waste recycling and packaging device for SMC glass fiber reinforced plastic processing, which aims at solving the problems that the packaging waste is inconvenient to measure and discharge in the prior art, and provides the following scheme, comprising the following steps: the method comprises the following steps: the casing, drive mechanism is including offering the spout on the casing inside wall, installing at the inboard second rack and the third rack of spout, the inboard of casing is rotated and is installed and place the board, four storage barrels are installed to the top annular array of placing the board. The waste material storage barrel has the advantages of reasonable structure, stable structure and simple operation, can not only measure the waste materials to be compressed, but also effectively ensure that the materials inside the storage barrel are discharged, realizes the coherent processes of feeding, compressing and discharging the waste materials to be compressed, effectively improves the packing efficiency, reduces the labor intensity of operators, and is easy to popularize and use.)

1. The utility model provides a waste recycling packing apparatus for SMC glass steel processing which characterized in that includes:

the rotary type material storage device comprises a shell (1), wherein a transmission mechanism comprises a chute (11) arranged on the inner side wall of the shell (1), and a second rack (16) and a third rack (17) which are arranged on the inner side wall of the chute (11), a placing plate (2) is rotatably arranged on the inner side of the shell (1), four material storage cylinders (4) are arranged on the top of the placing plate (2) in an annular array mode, a first transmission assembly used for driving the material storage cylinders (4) to turn over is arranged on one side of each material storage cylinder (4), and the first transmission assembly is matched with the second rack (16);

the discharging mechanism comprises two bottom plates (5) arranged on the inner side of the material storage barrel (4), the two bottom plates (5) are fixedly connected through a plurality of first racks (6), a second transmission assembly used for driving the first racks (6) to descend is arranged on the inner side of the material storage barrel (4), and the second transmission assembly is matched with a third rack (17);

the feeding mechanism comprises a feeding hopper (20) fixedly connected to the top of one end of the shell (1), a metering cylinder (21) fixedly connected to the bottom of the feeding hopper (20), and a rotating shaft (22) rotatably connected to the inner side of the metering cylinder (21), wherein four metering plates (23) arranged at equal intervals are fixedly connected to the outer wall of the rotating shaft (22) along the axial direction of the rotating shaft;

the compression mechanism comprises a lifting plate (31) arranged at the top of the inner side of the shell (1) and a pressing block (32) fixedly connected to the bottom of the lifting plate (31) and matched with the storage barrel (4); and

actuating mechanism, actuating mechanism is including rotating commentaries on classics board (26) of installing at casing (1) inboard top and installing and be used for the drive to change board (26) pivoted driving motor (35) in casing (1) outside one side, change and be connected through drive assembly between board (26) and lifter plate (31), change and be connected through link gear between board (26) and pivot (22), change board (26) and rotate, drive assembly work drives lifter plate (31) and goes up and down simultaneously, link gear work, rotate in order to drive pivot (22).

2. The waste recycling and packing device for SMC glass fiber reinforced plastic processing as claimed in claim 1, wherein a brake motor (15) for driving the placing plate (2) to rotate is installed on the inner wall of the bottom of the housing (1), four installation grooves (3) penetrating to the bottom of the placing plate (2) are formed in the top annular array of the placing plate (2), and four storage barrels (4) are respectively installed on the inner sides of the four installation grooves (3).

3. A scrap recycling and baling device for SMC fiberglass manufacturing according to claim 1, it is characterized in that the first transmission component comprises a connecting sleeve (10) fixedly connected with the outside of the material storage cylinder (4) and a second gear (12) sleeved on the outside of one end of the connecting sleeve (10) far away from the material storage cylinder (4), the second gear (12) extends to the inner side of the sliding chute (11) and is matched with the second rack (16), the second transmission component comprises a transmission shaft (7) which is rotatably connected to the inner side of the material storage barrel (4) and a first gear (8) which is sleeved on the outer ring of the transmission shaft (7) and is meshed with the first rack (6), one end of the transmission shaft (7) far away from the material storage cylinder (4) penetrates through the connecting sleeve (10) and extends to the inner side of the chute (11), and the outer ring of one end of the transmission shaft (7) positioned at the inner side of the sliding groove (11) is sleeved with a third gear (13) matched with a third rack (17).

4. A waste recycling and packing apparatus for SMC glass fiber reinforced plastic processing as in claim 1, wherein the storage cylinder (4) has two stop rings (9) fixed to its inner side, and the two bottom plates (5) are respectively located outside the two stop rings (9) on the side away from each other.

5. A waste recycling and packing device for SMC glass fiber reinforced plastic processing as in claim 1, wherein the outer ring of the end of the connecting sleeve (10) inside the sliding chute (11) is sleeved with a rectangular frame (14), the end of the rectangular frame (14) inside the sliding chute (11) is engaged with the sliding chute (11), and an enlarged slot (24) is opened on the side of the sliding chute (11) close to the second rack (16).

6. The waste recycling and packing device for SMC glass fiber reinforced plastic processing as claimed in claim 1, characterized in that four guide posts (33) are fixedly connected to the top of the inner side of the housing (1), the bottoms of the four guide posts (33) all extend to the bottom of the lifting plate (31), and a limiting block is fixedly connected to the bottoms of the four guide posts (33).

7. A scrap recycling and baling device for SMC frp processing as in claim 1, wherein said driving assembly includes a connecting post (29) fixed at one side of the rotating plate (26) at an eccentric center, a connecting rod (30) rotatably connected to the outside of the connecting post (29), the bottom of said connecting rod (30) is hinged with the top of the lifting plate (31).

8. A waste recycling and packing apparatus for SMC glass reinforced plastic processing as in claim 1, wherein the linkage mechanism comprises a fourth gear (25) installed at one end of the rotating shaft (22) outside the metering cylinder (21) and a gear ring (27) sleeved on the outer ring of the rotating plate (26), a transmission belt (28) is sleeved between the gear ring (27) and the fourth gear (25), wherein one rotation of the rotating plate (26) drives the rotating shaft (22) to rotate a quarter of a turn.

9. A waste recycling and packing device for SMC glass fiber reinforced plastic processing as in claim 1, wherein the bottom inner wall of the housing (1) is opened with a discharge hole (34), and the discharge hole (34) is located at the back side of the housing (1).

Technical Field

The invention relates to the field of recycling and packaging, in particular to a waste recycling and packaging device for SMC glass fiber reinforced plastic processing.

Background

The SMC glass fiber reinforced plastics have the characteristics of light weight, hardness, non-conductivity, stable performance, high mechanical strength, less recycling, corrosion resistance and the like. The SMC glass fiber reinforced plastic product is widely applied to the fields of electricians, automobiles, instruments and meters, mechanical equipment and parts, rail transit, building materials, bathrooms, leisure and sports goods and the like. In the production process of the SMC glass fiber reinforced plastics, a lot of waste is generated, and the waste generated by the processing can be recycled.

When the waste material to SMC glass steel is retrieved among the prior art, often can smash the waste material, then compress the blocking with the waste material after smashing, be convenient for retrieve the waste material like this, but pack the compression to the waste material after smashing among the prior art, for guaranteeing the relative homogeneous of blocking waste material quality of pressfitting play, often need measure the waste material of compression, but traditional compressor arrangement can not measure the waste material of compression, and the waste material of compressing the blocking is often stained with easily and attaches at the container inboard, inconvenient ejection of compact, its work efficiency is lower, for this reason, this scheme has provided a waste recycling packing apparatus for SMC glass steel processing.

Disclosure of Invention

The invention provides a waste recycling and packing device for SMC glass fiber reinforced plastic processing, which solves the problems that the packing waste is inconvenient to measure and discharge in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a waste recycling packing apparatus for SMC glass steel processing, includes:

the transmission mechanism comprises a chute arranged on the inner side wall of the shell, and a second rack and a third rack which are arranged on the inner side of the chute, wherein a placing plate is rotatably arranged on the inner side of the shell, four storage barrels are annularly arranged on the top of the placing plate in an array manner, a first transmission assembly for driving the storage barrels to turn over is arranged on one side of each storage barrel, and the first transmission assembly is matched with the second rack;

the discharging mechanism comprises two bottom plates arranged on the inner side of the material storage cylinder, the two bottom plates are fixedly connected through a plurality of first racks, a second transmission assembly used for driving the first racks to descend is arranged on the inner side of the material storage cylinder, and the second transmission assembly is matched with the third racks;

the feeding mechanism comprises a feeding hopper fixedly connected to the top of one end of the shell, a metering cylinder fixedly connected to the bottom of the feeding hopper and a rotating shaft rotatably connected to the inner side of the metering cylinder, and four metering plates arranged at equal intervals are fixedly connected to the outer wall of the rotating shaft along the axial direction of the rotating shaft;

the compression mechanism comprises a lifting plate arranged at the top of the inner side of the shell and a pressing block fixedly connected to the bottom of the lifting plate and matched with the material storage barrel; and

the driving mechanism comprises a rotating plate and a driving motor, wherein the rotating plate is rotatably arranged at the top of the inner side of the shell, the driving motor is arranged on one side of the outer portion of the shell and used for driving the rotating plate to rotate, the rotating plate is connected with the lifting plate through a driving assembly, the rotating plate is connected with the rotating shaft through a linkage mechanism, the rotating plate rotates, the driving assembly works to drive the lifting plate to lift, and the linkage mechanism works to drive the rotating shaft to rotate.

Preferably, the bottom inner wall of casing is installed and is used for the drive to place board pivoted brake motor, the top ring array of placing the board is seted up four and is run through to the mounting groove of placing the board bottom, and four storage barrels are installed respectively in the inboard of four mounting grooves.

Preferably, first drive assembly includes the rigid coupling at the outside adapter sleeve of storage cylinder, cup joints and keeps away from the outside second gear of storage cylinder one end at the adapter sleeve, the inboard and the second rack that the second gear extends to the spout are mutually supported, second drive assembly including rotate connect at the inboard transmission shaft of storage cylinder with cup joint at transmission shaft outer lane and first rack intermeshing's first gear, the one end that the storage cylinder was kept away from to the transmission shaft runs through the inboard that the adapter sleeve extended to the spout, and the transmission shaft is located the inboard one end outer lane of spout and cup joints with third rack matched with third gear.

Preferably, the inner side of the storage cylinder is fixedly connected with two limiting rings, and the two bottom plates are respectively positioned outside one sides of the two limiting rings, which are far away from each other.

Preferably, the outer ring of one end of the connecting sleeve, which is positioned at the inner side of the sliding groove, is sleeved with a rectangular frame, one end of the rectangular frame, which is positioned at the inner side of the sliding groove, is matched with the sliding groove, and one side of the sliding groove, which is close to the second rack, is provided with an enlarged groove.

Preferably, the inboard top rigid coupling of casing has four guide posts, and the bottom of four guide posts all extends to the bottom of lifter plate, and the equal rigid coupling in bottom of four guide posts has the stopper.

Preferably, the drive assembly comprises a connecting column and a connecting rod, wherein the connecting column is fixedly connected to one side of the rotating plate and deviates from the circle center, the connecting rod is rotatably connected to the outer portion of the connecting column, and the bottom of the connecting rod is hinged to the top of the lifting plate.

Preferably, the link gear includes a fourth gear installed at one end of the rotating shaft outside the metering cylinder and a gear ring sleeved on the outer ring of the rotating plate, a transmission belt is sleeved between the gear ring and the fourth gear, and the rotating plate rotates for one circle to drive the rotating shaft to rotate for one quarter of a circle.

Preferably, the inner wall of the bottom of the shell is provided with a discharge port, and the discharge port is positioned on one side of the back of the shell.

The invention has the beneficial effects that:

1. through mutual cooperation of a metering cylinder, pivot, metering plate, fourth gear, commentaries on classics board, ring gear etc. when realizing changeing the board drive lifter plate and go up and down, drive the pivot and rotate, and then measure the compression waste material of treating that enters into storage cylinder inboard.

2. Through placing board, mounting groove, storage barrel, bottom plate, transmission shaft, adapter sleeve etc. and mutually supporting, realize feeding, compression, ejection of compact process and link up mutually to the material that can the inboard pressfitting of effectual assurance storage barrel was accomplished is discharged the outside of storage barrel, has avoided operating personnel to carry out repeatedly and has packed and ejection of compact operation, has reduced operating personnel's intensity of labour, the effectual packing efficiency that has improved.

The waste material storage barrel has the advantages of reasonable structure, stable structure and simple operation, can not only measure the waste materials to be compressed, but also effectively ensure that the materials inside the storage barrel are discharged, realizes the coherent processes of feeding, compressing and discharging the waste materials to be compressed, effectively improves the packing efficiency, reduces the labor intensity of operators, and is easy to popularize and use.

Drawings

Fig. 1 is a front sectional structural view of the present invention.

FIG. 2 is a schematic view of the storage cartridge of the present invention

Fig. 3 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

Fig. 4 is a schematic right sectional view of the present invention.

Fig. 5 is a top cross-sectional structural view of the housing of the present invention.

Fig. 6 is a schematic top view of the placement board of the present invention.

Fig. 7 is an enlarged view of the structure at B in fig. 6 according to the present invention.

Reference numbers in the figures: 1. a housing; 2. placing the plate; 3. mounting grooves; 4. a storage cylinder; 5. a base plate; 6. a first rack; 7. a drive shaft; 8. a first gear; 9. a limiting ring; 10. connecting sleeves; 11. a chute; 12. a second gear; 13. a third gear; 14. a rectangular frame; 15. a brake motor; 16. a second rack; 17. a third rack; 20. a feed hopper; 21. a metering drum; 22. a rotating shaft; 23. a metering plate; 24. enlarging the groove; 25. a fourth gear; 26. rotating the plate; 27. a toothed ring; 28. a transmission belt; 29. connecting columns; 30. a connecting rod; 31. a lifting plate; 32. briquetting; 33. a guide post; 34. a discharge port; 35. the motor is driven.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 7, a scrap recycling and baling apparatus for SMC glass fiber reinforced plastic processing includes: casing 1, drive mechanism is including seting up spout 11 on 1 inside wall of casing, there are second rack 16 and third rack 17 at 11 inboard bottom rigid couplings of spout, casing 1's inboard is installed and is placed board 2 and be used for the drive to place board 2 pivoted brake motor 15, place board 2's top ring array and seted up four mounting grooves 3, four mounting grooves 3's inboard is all rotated and is connected with storage cylinder 4, there is adapter sleeve 10 at 4 one side outer wall rigid couplings of storage cylinder, adapter sleeve 10 is located 11 inboard one end outer lanes of spout and has cup jointed rectangular frame 14, rectangular frame 14 is located 11 inboard one end of spout and is coincide each other with spout 11, and spout 11 has seted up enlarged groove 24 near one side of second rack 16, rectangular frame 14 can effectually prevent storage cylinder 4 at 3 inboard free rotations of mounting groove.

Keep away from storage cylinder 4 one end outside at adapter sleeve 10 and cup jointed second gear 12, second gear 12 extends to the inboard of spout 11 and mutually supports with second rack 16, board 2 rotation 90 is placed in the drive at every turn to brake motor 15, when placing board 2 and rotate second gear 12 and second rack 16 intermeshing, rectangular frame 14 moves to the inboard that enlarges groove 24, when placing board 2 pivoted, second rack 16 drive second gear 12 rotates, and then drive storage cylinder 4 at the inboard upset 180 of mounting groove 3, then rectangular frame 14 with enlarge the separation of groove 24, second gear 12 and the separation of second rack 16.

Two bottom plates 5 are arranged on the inner side of a storage barrel 4, two limiting rings 9 are fixedly connected on the inner side of the storage barrel 4, the two bottom plates 5 are respectively positioned on the outer sides of the sides, far away from each other, of the two limiting rings 9, the two bottom plates 5 are fixedly connected with each other through a plurality of first racks 6, one ends, located on the inner sides of the storage barrel 4, of the bottom plates 5 are mutually matched with the storage barrel 4, a transmission shaft 7 is rotatably connected on the inner side of the storage barrel 4, a first gear 8 meshed with the first racks 6 is sleeved on the outer ring of the transmission shaft 7, the transmission shaft 7 rotates clockwise to drive the plurality of first gears 8 sleeved on the outer side of the transmission shaft 7 to rotate clockwise, and further drive the plurality of first racks 6 to vertically move downwards along the direction of the storage barrel 4, so as to push out the material compressed on the inner side of the storage barrel 4 to the outer side of the storage barrel 4, a discharge port 34 is formed in the inner wall of the bottom of the shell 1, the discharge port 34 is located on one side of the back of the casing 1, and the compressed material falling from the storage cylinder 4 just falls out of the casing 1 from the discharge port 34, so that the material is convenient to discharge.

One end of the transmission shaft 7, which is far away from the storage cylinder 4, penetrates through the connecting sleeve 10 and extends to the inner side of the sliding groove 11, the outer ring of one end, which is positioned on the inner side of the sliding groove 11, of the transmission shaft 7 is sleeved with a third gear 13 matched with a third rack 17, after the second gear 12 is separated from the second rack 16, the third gear 13 is meshed with the third rack 17, the placing plate 2 continues to rotate, the third gear 13 is driven to rotate clockwise, and the material compressed on the inner side of the storage cylinder 4 is pushed out to the outer side of the storage cylinder 4.

A lifting plate 31 is arranged at the top of the inner side of a shell 1, four guide columns 33 are fixedly connected to the top of the inner side of the shell 1, the bottoms of the four guide columns 33 all extend to the bottom of the lifting plate 31, limit blocks are fixedly connected to the bottoms of the four guide columns 33, a press block 32 is fixedly connected to the bottom of the lifting plate 31, material storage cylinders 4 of the press block 32 are matched with each other, a rotating plate 26 and a driving motor 35 which is arranged at one side of the outer side of the shell 1 and used for driving the rotating plate 26 to rotate are rotatably arranged at the top of the inner side of the shell 1, a connecting column 29 is fixedly connected to one side of the rotating plate 26 at a position deviating from the center of circle, a connecting rod 30 is rotatably connected to the outer side of the connecting column 29, the bottom of the connecting rod 30 is hinged to the top of the lifting plate 31, the driving motor 35 drives the rotating plate 26 to rotate, the material storage plates 31 to reciprocate along the guide columns 33, when the lifting plate 31 descends, the press block 32 is driven to compress materials stored in the inner side of the material storage cylinders 4, when the lifting plate 31 rises, the pressing block 32 is driven to rise, and the pressing block 32 is separated from the material storage barrel 4.

There is feed hopper 20 at 1 one end top rigid coupling of casing, there are a metering cylinder 21 and the pivot 22 of rotation connection in metering cylinder 21 inboard at feed hopper 20 bottom rigid coupling, the outer wall of pivot 22 has the metering board 23 that four equidistance set up along its axial rigid coupling, the bottom rigid coupling of metering cylinder 21 has the connecting pipe, the connecting pipe is located storage cylinder 4 directly over, and mutually support with storage cylinder 4, the one end of pivot 22 extends to the outside of metering cylinder 21, it installs fourth gear 25 to be located the outside one end of metering cylinder 21 at pivot 22, the ring gear 27 has been cup jointed in commentaries on classics board 26 outer lane, the cover is equipped with drive belt 28 between ring gear 27 and the fourth gear 25, when changeing board 26 and rotating, changeing board 26 drives ring gear 27 and rotates, and then drive fourth gear 25 and rotate, thereby drive pivot 22 rotates, it drives the pivot 22 and rotates the quarter round to rotate the round to change board 26.

The working principle is as follows: when the device is used, a power supply of the device is connected, the production waste which needs to be compressed and packaged after being processed is put into the inner side of the feeding funnel 20, the waste enters the inner side of the metering cylinder 21 through the feeding funnel 20 and is separated and blocked by the two adjacent metering plates 23, the driving motor 35 rotates to drive the rotating shaft 22 to rotate, the waste to be compressed between the two adjacent metering plates 23 enters the inner side of the storage cylinder 4 from the bottom of the metering cylinder 21, the brake motor 15 rotates to drive the placing plate 2 to rotate, the storage cylinder 4 storing the waste is moved to the position under the pressing block 32, then the driving motor 35 drives the rotating plate 26 to rotate clockwise by 180 degrees, the lifting plate 31 is pushed to move vertically downwards, the pressing block 32 is pushed downwards to move to the inner side of the storage cylinder 4, the waste to be compressed on the inner side of the storage cylinder 4 is compressed into blocks, then the driving motor 35 drives the rotating plate 26 to continue to rotate clockwise by 180 degrees, the lifting plate 31 is driven to ascend, so that the pressing block 32 ascends, the pressing block 32 is separated from the storage cylinder 4, when the driving motor 35 drives the rotating plate 26 to rotate for 360 degrees, the toothed ring 27 rotates for 360 degrees, the rotating shaft 22 is driven to rotate for 90 degrees, materials between the two metering plates 23 are released to enter the inner side of the storage cylinder 4 at the bottom of the metering cylinder 21, then the brake motor 15 drives the placing plate 2 to rotate for 90 degrees, the rectangular frame 14 at one side of the storage cylinder 4 of compressed waste materials enters the inner side of the expanding groove 24, then the second rack 16 is meshed with the second rack 12, the second rack 16 drives the second rack 12 to rotate, further the storage cylinder 4 is driven to turn over for 180 degrees at the inner side of the mounting groove 3, the placing plate 2 continues to rotate, the rectangular frame 14 is separated from the expanding groove 24, the third rack 13 and the third rack 17 are mutually meshed, in the rotating process of the placing plate 2, the third rack 17 drives the third gear 13 to rotate clockwise, and then drive the vertical decline of first rack 6, make two vertical decline of bottom plate 5, the bottom up to bottom plate 5 and the top butt of spacing ring 9, thereby the bottom to storage cylinder 4 is released to the material that will be located the compression blocking of the inboard bottom of storage cylinder 4, drop to the bottom of casing 1 from discharge gate 34, after placing board 2 and rotate 90, storage cylinder 4 just accomplishes upset 180 and releases the outside of casing 1 with the material that the compression of storage cylinder 4 inboard was accomplished, and storage cylinder 4 of having stored the material that treats the compression blocking moves to briquetting 32 under, empty storage cylinder 4 moves to metering cylinder 21 under, realize the feeding, the compression, the operation is coherent to the ejection of compact process, the effectual packing efficiency of treating the packing waste material that has improved.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

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