阅读说明：本技术 一种纺织印染花纹的检测处理设备 (Detection processing equipment for textile printing and dyeing patterns ) 是由 齐东 于 2020-08-05 设计创作，主要内容包括：本发明公开了一种纺织印染花纹的检测处理设备,包括基座,所述基座顶部端面上设有固定板以及位于所述固定板前侧的水刃挡板,所述固定板前侧端面上固定设有花纹检测设备以及位于所述花纹检测设备右侧的水刃工作块,所述固定板顶部端面上设有开口向前的放置通道以及位于所述放置通道右侧开口向前的取件通道,所述放置通道与所述取件通道之间连通有开口向前的活动块滑槽；本发明结构简单,操作便捷,实现了在检测到纺织布花纹不良的同时及时裁断花纹不良的部分,并利用静电使裁断的纺织布重新卷在滚筒上继续进行检测,保证了检测及处理的效率,适合于各大纺织厂内进行推广。(The invention discloses detection and treatment equipment for textile printing and dyeing patterns, which comprises a base, wherein a fixed plate and a water blade baffle plate positioned on the front side of the fixed plate are arranged on the top end surface of the base, a pattern detection device and a water blade working block positioned on the right side of the pattern detection device are fixedly arranged on the front end surface of the fixed plate, a placing channel with a forward opening and a workpiece taking channel with a forward opening and positioned on the right side of the placing channel are arranged on the top end surface of the fixed plate, and a movable block sliding chute with a forward opening is communicated between the placing channel and the workpiece taking channel; the invention has simple structure and convenient operation, realizes timely cutting off the bad pattern part when detecting the bad pattern of the textile cloth, and utilizes static electricity to lead the cut textile cloth to be rewound on the roller for continuous detection, thereby ensuring the efficiency of detection and treatment and being suitable for popularization in various large textile factories.)

1. The utility model provides a detection and treatment equipment of weaving printing and dyeing decorative pattern, includes the base, its characterized in that: the end surface of the top of the base is provided with a fixed plate and a water blade baffle plate positioned on the front side of the fixed plate, the end surface of the front side of the fixed plate is fixedly provided with pattern detection equipment and a water blade working block positioned on the right side of the pattern detection equipment, the end surface of the top of the fixed plate is provided with a placing channel with a forward opening and a workpiece taking channel positioned on the right side of the placing channel with a forward opening, a movable block sliding chute with a forward opening is communicated between the placing channel and the workpiece taking channel, the end surface of the top of the base is provided with a first transmission cavity with an upward opening, and the inner wall of the rear side of the first transmission; the placing channel and the movable block sliding groove are internally provided with a movable block in a sliding manner, the inner wall on the left side of the placing channel is provided with a third transmission cavity, the front inner wall and the rear inner wall of the third transmission cavity are rotationally provided with a main roller spline shaft extending forwards and a first transmission shaft positioned on the lower side of the main roller spline shaft, the main roller spline shaft is fixedly provided with a first transmission gear, the first transmission shaft is fixedly provided with a second transmission gear meshed with the first transmission gear and a first belt pulley positioned on the rear side of the second transmission gear, the main roller spline shaft extends forwards into the outside part, the main roller spline shaft is assembled with a main winding roller, the bottom end face of the movable block is provided with a fourth transmission cavity with a downward opening, the front inner wall and the rear inner wall of the fourth transmission cavity are rotationally provided with an auxiliary roller spline shaft extending forwards, the auxiliary roller spline shaft is fixedly provided with a friction wheel and, a bayonet with an upward opening is arranged on the end surface of the top of the rotating wheel, a fixture block sliding groove with a downward opening is arranged on the top wall in the fourth transmission cavity, a clamping block matched with the bayonet is arranged in the clamping block sliding groove in a sliding manner, a clamping block spring fixedly connected with the inner top wall of the clamping block sliding groove is fixedly arranged on the end surface of the top of the clamping block, the spline of the part of the auxiliary roller spline shaft extending forwards into the outside is provided with an auxiliary winding roller, the inner top wall of the movable block sliding chute is provided with two same triangular stop block sliding chutes with downward openings, a triangular stop block is arranged in the triangular stop block sliding chute in a sliding manner, a first electromagnet attracted with the triangular stop block is fixedly arranged on the inner top wall of the triangular stop block sliding chute, the triangular stop block is characterized in that a triangular stop block spring fixedly connected with the inner top wall of the triangular stop block sliding groove is fixedly arranged on the top end face of the triangular stop block, and a magnet attracted with the clamping block is fixedly arranged on the inner wall of the left side of the triangular stop block sliding groove on the right side.

2. A device for detecting and processing textile printing patterns according to claim 1, wherein: the fixed motor that is equipped with on the first transmission chamber front side inner wall, power connection has the motor integral key shaft of backward extension on the motor rear end face, the last fixed second band pulley that is equipped with of motor integral key shaft, it is located to rotate on the inner wall around the first transmission chamber the second transmission shaft of motor integral key shaft right side bilateral symmetry, the fixed third band pulley that is equipped with on the second transmission shaft, second band pulley and two connect through first drive belt transmission cooperation between the third band pulley, the friction pulley with friction fit between the first drive belt.

3. A device for detecting and processing textile printing patterns according to claim 2, wherein: the motor spline shaft penetrates through the front inner wall and the rear inner wall of the second transmission cavity and is connected with the front inner wall and the rear inner wall in a rotating fit manner, a fourth belt wheel is fixedly arranged on the part of the motor spline shaft positioned in the second transmission cavity, the fourth belt wheel is connected with the first belt wheel in a rotating fit manner through a second transmission belt, a winding wheel positioned at the rear side of the fourth belt wheel is rotatably arranged on the part of the motor spline shaft positioned in the second transmission cavity, a pull rope is fixedly wound on the winding wheel, a spline sleeve positioned at the rear side of the winding wheel is in spline fit with the part of the motor spline shaft positioned in the second transmission cavity, first meshing teeth are fixedly arranged on the front end face of the spline sleeve, second meshing teeth matched with the first meshing teeth are fixedly arranged on the rear end face of the winding wheel, a shifting sheet is fixedly arranged on the annular end face of the spline sleeve, and a shifting block chute with a right opening is arranged on the inner wall on the left side of the, the shifting block sliding groove is internally provided with a shifting block in a sliding manner, a shifting block spring fixedly connected with the inner wall of the front side of the shifting block sliding groove is fixedly arranged on the end face of the front side of the shifting block, and a second electromagnet in attraction fit with the shifting block is fixedly arranged on the inner wall of the front side of the shifting block sliding groove.

4. A device for detecting and processing textile printing patterns according to claim 1, wherein: the water gun comprises a water blade working block, and is characterized in that a water gun chute with a downward opening is arranged on the end surface of the bottom of the water blade working block, two identical water gun heads with a downward opening are arranged in the water gun chute, the water gun head on the left side is fixedly connected with the inner wall on the left side of the water gun chute, the water gun head on the right side is connected with the water gun chute in a sliding fit manner, a water gun spring fixedly connected with the inner wall on the right side of the water gun chute is fixedly arranged on the end surface of the right side of the water gun head, the pull rope is fixedly connected onto the end surface of the right side of the water gun head on the right side, the other end of the winding wheel is far away from the pull rope, a waste material tank with.

Technical Field

The invention relates to the field of textile correlation, in particular to a detection and processing device for textile printing and dyeing patterns.

Background

Printing and dyeing, also known as dyeing and finishing, is a processing mode and is a general name of pretreatment, dyeing, printing, after-finishing, washing and the like.

At the present stage, printed patterns need to be detected after textile cloth is printed, when the patterns are detected to be poor, the textile cloth with the poor patterns is difficult to be processed timely, and if a whole roll of textile cloth is scrapped due to small flaws, the whole roll of textile cloth is too wasted.

Disclosure of Invention

The invention aims to solve the technical problem of providing the detection and treatment equipment for the textile printing and dyeing patterns, which realizes that the bad patterns of the textile cloth are detected and simultaneously the bad parts of the patterns are cut in time, and the cut textile cloth is rewound on a roller for continuous detection by utilizing static electricity, thereby ensuring the detection and treatment efficiency.

The invention discloses detection and treatment equipment for textile printing and dyeing patterns, which comprises a base, wherein a fixed plate and a water blade baffle plate positioned on the front side of the fixed plate are arranged on the top end surface of the base, the front end surface of the fixed plate is fixedly provided with pattern detection equipment and a water blade working block positioned on the right side of the pattern detection equipment, a placing channel with a forward opening and a workpiece taking channel with a forward opening and positioned on the right side of the placing channel are arranged on the top end surface of the fixed plate, a movable block sliding chute with a forward opening is communicated between the placing channel and the workpiece taking channel, a first transmission cavity with an upward opening is arranged on the top end surface of the base, and a second transmission cavity is arranged on the inner wall of the rear side of; the placing channel and the movable block sliding groove are internally provided with a movable block in a sliding manner, the inner wall on the left side of the placing channel is provided with a third transmission cavity, the front inner wall and the rear inner wall of the third transmission cavity are rotationally provided with a main roller spline shaft extending forwards and a first transmission shaft positioned on the lower side of the main roller spline shaft, the main roller spline shaft is fixedly provided with a first transmission gear, the first transmission shaft is fixedly provided with a second transmission gear meshed with the first transmission gear and a first belt pulley positioned on the rear side of the second transmission gear, the main roller spline shaft extends forwards into the outside part, the main roller spline shaft is assembled with a main winding roller, the bottom end face of the movable block is provided with a fourth transmission cavity with a downward opening, the front inner wall and the rear inner wall of the fourth transmission cavity are rotationally provided with an auxiliary roller spline shaft extending forwards, the auxiliary roller spline shaft is fixedly provided with a friction wheel and, a bayonet with an upward opening is arranged on the end surface of the top of the rotating wheel, a fixture block sliding groove with a downward opening is arranged on the top wall in the fourth transmission cavity, a clamping block matched with the bayonet is arranged in the clamping block sliding groove in a sliding manner, a clamping block spring fixedly connected with the inner top wall of the clamping block sliding groove is fixedly arranged on the end surface of the top of the clamping block, the spline of the part of the auxiliary roller spline shaft extending forwards into the outside is provided with an auxiliary winding roller, the inner top wall of the movable block sliding chute is provided with two same triangular stop block sliding chutes with downward openings, a triangular stop block is arranged in the triangular stop block sliding chute in a sliding manner, a first electromagnet attracted with the triangular stop block is fixedly arranged on the inner top wall of the triangular stop block sliding chute, the triangular stop block is characterized in that a triangular stop block spring fixedly connected with the inner top wall of the triangular stop block sliding groove is fixedly arranged on the top end face of the triangular stop block, and a magnet attracted with the clamping block is fixedly arranged on the inner wall of the left side of the triangular stop block sliding groove on the right side.

Further, the fixed motor that is equipped with on the inner wall of first transmission chamber front side, power connection has the motor integral key shaft of backward extension on the motor rear end face, the last fixed second band pulley that is equipped with of motor integral key shaft, it is located to rotate on the inner wall around the first transmission chamber the second transmission shaft of motor integral key shaft right side bilateral symmetry, the fixed third band pulley that is equipped with on the second transmission shaft, second band pulley and two connect through first drive belt transmission cooperation between the third band pulley, the friction pulley with friction fit between the first drive belt.

Furthermore, the motor spline shaft penetrates through the front inner wall and the rear inner wall of the second transmission cavity and is connected with the front inner wall and the rear inner wall in a rotating fit manner, a fourth belt wheel is fixedly arranged on the part of the motor spline shaft positioned in the second transmission cavity, the fourth belt wheel is connected with the first belt wheel in a rotating fit manner through a second transmission belt, a winding wheel positioned at the rear side of the fourth belt wheel is rotatably arranged on the part of the motor spline shaft positioned in the second transmission cavity, a pull rope is fixedly wound on the winding wheel, a spline sleeve positioned at the rear side of the winding wheel is in spline fit with the part of the motor spline shaft positioned in the second transmission cavity, first meshing teeth are fixedly arranged on the end face of the front side of the spline sleeve, second meshing teeth matched with the first meshing teeth are fixedly arranged on the end face of the rear side of the winding wheel, and a shifting sheet is fixedly arranged on the annular end face of the spline sleeve, the left inner wall of the second transmission cavity is provided with a shifting block sliding groove with a right opening, a shifting block is arranged in the shifting block sliding groove in a sliding mode, a shifting block spring fixedly connected with the front inner wall of the shifting block sliding groove is fixedly arranged on the front end face of the shifting block, and a second electromagnet matched with the shifting block in an attraction mode is fixedly arranged on the front inner wall of the shifting block sliding groove.

Furthermore, a water gun chute with a downward opening is formed in the end face of the bottom of the water blade working block, two identical water gun heads with a downward opening are arranged in the water gun chute, the water gun head on the left side is fixedly connected with the inner wall on the left side of the water gun chute, the water gun head on the right side is connected with the water gun chute in a sliding fit manner, a water gun spring fixedly connected with the inner wall on the right side of the water gun chute is fixedly arranged on the end face of the right side of the water gun head, the pull rope is fixedly connected to the end face of the right side of the water gun head on the right side, the other end of the winding wheel is far away from the pull rope, a waste material groove with an upward opening and matched with the water gun head is formed in the end face of.

The invention has the beneficial effects that: the invention has simple structure and convenient operation, realizes timely cutting off the bad pattern part when detecting the bad pattern of the textile cloth, and utilizes static electricity to lead the cut textile cloth to be rewound on the roller for continuous detection, thereby ensuring the efficiency of detection and treatment and being suitable for popularization in various large textile factories.

Drawings

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

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram at A-A in FIG. 1 according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram at B-B in FIG. 1 according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram at C-C in FIG. 1 according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram at D-D in FIG. 1 according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram at E-E in FIG. 1 according to an embodiment of the present invention.

Detailed Description

The invention will now be described in detail with reference to fig. 1-6, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The detection and processing device for textile printing and dyeing patterns, which is described with reference to fig. 1-6, includes a base 10, a fixed plate 11 and a water blade baffle 22 located at the front side of the fixed plate 11 are arranged on the top end surface of the base 10, a pattern detection device 14 and a water blade working block 28 located at the right side of the pattern detection device 14 are fixedly arranged on the front end surface of the fixed plate 11, a placing channel 15 with a forward opening and a workpiece taking channel 23 located at the right side of the placing channel 15 with a forward opening are arranged on the top end surface of the fixed plate 11, a moving block sliding slot 19 with a forward opening is communicated between the placing channel 15 and the workpiece taking channel 23, a first transmission cavity 31 with an upward opening is arranged on the top end surface of the base 10, a second transmission cavity 40 is arranged on the inner wall at the rear side of the first transmission cavity 31, and a moving block 16 is slidably arranged in the, a third transmission cavity 41 is arranged on the inner wall of the left side of the placing channel 15, a main roller spline shaft 12 extending forwards and a first transmission shaft 42 positioned on the lower side of the main roller spline shaft 12 are rotatably arranged on the front and rear inner walls of the third transmission cavity 41, a first transmission gear 45 is fixedly arranged on the main roller spline shaft 12, a second transmission gear 44 meshed with the first transmission gear 45 and a first belt pulley 43 positioned on the rear side of the second transmission gear 44 are fixedly arranged on the first transmission shaft 42, a main winding roller 13 is splined on the part of the main roller spline shaft 12 extending forwards into the outside, a fourth transmission cavity 52 with a downward opening is arranged on the bottom end face of the movable block 16, a secondary spline shaft 18 extending forwards is rotatably arranged on the front and rear inner walls of the fourth transmission cavity 52, a friction wheel 51 and a rotating wheel 50 positioned on the rear side of the friction wheel 51 are fixedly arranged on the secondary spline shaft 18, a bayonet 49 with an upward opening is arranged on the top end face of the rotating wheel 50, a fixture block sliding groove 46 with a downward opening is arranged on the top wall in the fourth transmission cavity 52, a fixture block 48 matched with the bayonet 49 is arranged in the fixture block sliding groove 46 in a sliding manner, a fixture block spring 47 fixedly connected with the top wall in the fixture block sliding groove 46 is fixedly arranged on the top end face of the top of the fixture block 48, an auxiliary winding roller 17 is assembled on the part of the auxiliary roller spline shaft 18 extending forwards into the outside through a spline, two identical triangular block sliding grooves 58 with downward openings are arranged on the top wall in the movable block sliding groove 19, a triangular block 29 is arranged in the triangular block sliding groove 58 in a sliding manner, a first electromagnet 63 attracted with the triangular block 29 is fixedly arranged on the top wall in the triangular block sliding groove 58, and a triangular block spring 59 fixedly connected with the top wall in the triangular block sliding groove 58 is fixedly, and a magnet 53 attracted with the fixture block 48 is fixedly arranged on the left inner wall of the right triangular stop sliding groove 58.

Beneficially, fixed being equipped with motor 30 on the first transmission chamber 31 front side inner wall, power connection has the motor spline shaft 32 of backward extension on the motor 30 rear side end face, the last fixed second band pulley 33 that is equipped with of motor spline shaft 32, it is located to rotate on the inner wall around the first transmission chamber 31 second transmission shaft 54 of motor spline shaft 32 right side bilateral symmetry, the fixed third band pulley 60 that is equipped with on the second transmission shaft 54, second band pulley 33 and two connect through first drive belt 34 transmission fit between the third band pulley 60, friction pulley 51 with friction fit between the first drive belt 34.

Beneficially, the motor spline shaft 32 penetrates through the front and rear inner walls of the second transmission cavity 40 and is connected with the second transmission cavity in a rotating fit manner, a fourth pulley 35 is fixedly arranged on the part of the motor spline shaft 32 located in the second transmission cavity 40, the fourth pulley 35 is connected with the first pulley 43 in a rotating fit manner through a second transmission belt 61, a winding wheel 36 located at the rear side of the fourth pulley 35 is rotatably arranged on the part of the motor spline shaft 32 located in the second transmission cavity 40, a pulling rope 25 is fixedly wound on the winding wheel 36, a spline housing 39 located at the rear side of the winding wheel 36 is in spline fit with the part of the motor spline shaft 32 located in the second transmission cavity 40, a first engaging tooth is fixedly arranged on the end face of the front side of the spline housing 39, a second engaging tooth matched with the first engaging tooth is fixedly arranged on the end face of the rear side of the winding wheel 36, the spline housing 39 is fixed with the plectrum on the annular end face, be equipped with the opening shifting block spout 55 to the right on the inner wall of second transmission chamber 40 left side, it is equipped with shifting block 57 to slide in shifting block spout 55, fixed being equipped with on the shifting block 57 front side end face with shifting block spout 55 front side inner wall fixed connection's shifting block spring 56, fixed being equipped with on the shifting block spout 55 front side inner wall with shifting block 57 looks inhale the complex second electro-magnet 62.

Advantageously, a water gun chute 24 with a downward opening is formed in the end face of the bottom of the water blade working block 28, two identical water gun heads 27 with a downward opening are arranged in the water gun chute 24, the water gun head 27 on the left side is fixedly connected with the inner wall on the left side of the water gun chute 24, the water gun head 27 on the right side is connected with the water gun chute 24 in a sliding fit manner, a water gun spring 26 fixedly connected with the inner wall on the right side of the water gun chute 24 is fixedly arranged on the end face of the right side of the water gun head 27 on the right side, the other end, far away from the winding wheel 36, of the pull rope 25 is fixedly connected to the end face of the right side of the water gun head 27 on the right side, a waste material chute 21 with an upward opening and matched with the water gun head 27 is formed in the.

In the initial state, the right lance head 27 is positioned at the left limit position under the action of the lance spring 26 and is abutted against the left lance head 27, the shifting block 57 is located at the rear limit position under the action of the shifting block spring 56, so that the spline housing 39 is located at the rear limit position, therefore, the first meshing tooth is disengaged from the second meshing tooth, the triangular stop 29 extends downwards into the moving block sliding groove 19 under the action of the triangular stop spring 59 to abut against the right end face of the moving block 16, the fixture block 48 on the left side extends downwards into the bayonet 49 on the left side under the action of the fixture block spring 47 on the left side to abut against the rotating wheel 50 on the left side, the fixture block 48 on the right side is contracted into the fixture block sliding groove 46 on the right side under the action of the magnet 53, and the fixture block spring 47 on the right side is in a compressed state.

When the device works, the other end, far away from the main winding roller 13, of the textile cloth to be detected on the main winding roller 13 is fixedly wound on the right auxiliary winding roller 17, the left auxiliary winding roller 17 is pressed on the textile cloth to be detected, the motor 30 and the pattern detection equipment 14 are started, the motor 30 drives the motor spline shaft 32 to rotate, so as to drive the second belt wheel 33, the fourth belt wheel 35 and the spline housing 39 to rotate, the fourth belt wheel 35 rotates to drive the first belt wheel 43 to rotate, so as to drive the second transmission gear 44 coaxial with the first belt wheel 43 to rotate, the second transmission gear 44 rotates to drive the first transmission gear 45 meshed with the second transmission gear to rotate, so as to drive the main winding roller 13 coaxial with the first transmission gear 45 to rotate, the textile cloth is loosened, the second belt wheel 33 rotates to drive the two third belt wheels 60 to rotate through the first transmission belt wheel 34, the triangular stop block 29 abuts against the right end face of the movable block 16 to prevent, the third belt wheel 60 is rotated to drive the right friction wheel 51 to rotate, the right friction wheel 51 is rotated to drive the right auxiliary winding roller 17 to rotate to tighten the textile cloth, the textile cloth is subjected to pattern detection through the pattern detection equipment 14, the left fixture block 48 is in contact with the left rotating wheel 50 to prevent the left friction wheel 51 coaxial with the left rotating wheel 50 from rotating, and therefore the left auxiliary winding roller 17 and the textile cloth are rubbed to accumulate static electricity;

when the pattern detection device 14 detects abnormal patterns, the second electromagnet 62 is electrified, the shifting block 57 is enabled to move forwards to the front limit position, the spline sleeve 39 is enabled to move forwards, the first meshing teeth are meshed with the second meshing teeth, the spline sleeve 39 is enabled to rotate to drive the winding wheel 36 meshed with the spline sleeve to rotate to tighten the pull rope 25, the right-side water gun head 27 is enabled to move rightwards, when the pattern detection device 14 detects that the patterns are normal, the first electromagnet 63 and the water gun head 27 are enabled to work, the water gun head 27 works to spray high-pressure water to cut off a section of textile cloth with abnormal patterns, the auxiliary winding roller 17 on the left side sucks the textile cloth with the patterns under the action of static electricity, the cut textile cloth falls into the waste trough 21 under the action of gravity, water flow is discharged outwards through the water discharge hole 20, the first electromagnet 63 works to enable the triangular stop block 29 to move upwards to be separated from the movable block 16, so that the left movable block 16 displaces to the right under the action of the first transmission belt 34 to press the right movable block 16 into the workpiece taking channel 23, so that the right movable block 16 can be taken out conveniently, the second electromagnet 62, the first electromagnet 63 and the water gun head 27 stop working, the shifting block 57 displaces backwards under the action of the shifting block spring 56 to drive the spline sleeve 39 to displace backwards to return to the initial state, so that the water gun head 27 on the right moves leftwards to return to the initial state under the action of the water gun spring 26, the first electromagnet 63 stops working to drive the triangular stopper 29 to displace downwards under the action of the triangular stopper spring 59 to return to the initial state, when the original left movable block 16 displaces to the original position of the right movable block 16, the right triangular stopper 29 prevents the original movable block from displacing continuously, the fixture block 48 is upwards positioned under the action of the magnet 53 and is separated from the abutment of the rotating wheel 50, so that the first transmission belt 34 drives the friction wheel 51 to rotate, the friction wheel 51 rotates to drive the auxiliary winding roller 17 coaxial with the friction wheel to rotate, and then the movable block 16 is placed into the placing channel 15 to continue the detection operation.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.