阅读说明：本技术 一种快速收卷的热收缩膜收卷机 (Quick rolling thermal contraction membrane rolling machine ) 是由 何玲 于 2021-09-28 设计创作，主要内容包括：本发明公开了一种快速收卷的热收缩膜收卷机,包括：固定架,固定架的顶部安装有收卷机构和卸料机构,固定架的内部还安装有驱动机构,固定架的顶面中部开设有下料槽,下料槽呈倾斜状设置。本发明通过收卷辊来对热收缩膜进行收卷,收卷后通过驱动机构来将外活动板向固定架两侧移动,从而将插杆从收卷辊内部抽出,使支撑板收入到收卷辊内部,插杆移出后驱动内活动板向两侧移动,从而通过限位板来将收卷辊上缠绕的松弛后的薄膜卷脱离收卷辊,达到快速卸料的效果,卸料完成后驱动内、外活动板自动复位,提高收卷和脱卷的效率,减少脱卷时的人工操作。(The invention discloses a quick-winding thermal contraction film winding machine, which comprises: winding mechanism and shedding mechanism are installed to the mount, the top of mount, and actuating mechanism is still installed to the inside of mount, and the silo down has been seted up at the top surface middle part of mount, and the silo is the slope form setting down. According to the invention, the heat shrinkable film is wound by the winding roller, the outer movable plate is moved to two sides of the fixing frame by the driving mechanism after winding, so that the inserted rod is drawn out from the winding roller, the supporting plate is collected into the winding roller, the inserted rod is moved out and then drives the inner movable plate to move to two sides, and the loosened film roll wound on the winding roller is separated from the winding roller by the limiting plate, so that the effect of quick discharging is achieved, the inner movable plate and the outer movable plate are driven to automatically reset after discharging is completed, the winding and unwinding efficiency is improved, and the manual operation during unwinding is reduced.)

1. A quick rolling thermal contraction film rolling machine comprises: mount (1), its characterized in that: the winding mechanism and the unloading mechanism are mounted at the top of the fixed frame (1), the driving mechanism is further mounted inside the fixed frame (1), the discharging groove (15) is formed in the middle of the top surface of the fixed frame (1), and the discharging groove (15) is obliquely arranged;

the discharging mechanism comprises an outer movable plate (4), two limiting plates (6) and an inserting rod (8), the outer movable plate (4) and the two limiting plates (6) are respectively arranged, the two limiting plates (6) are vertically arranged on the top surface of the fixing frame (1) and located on two sides of the discharging groove (15), through holes are formed in the surfaces of the limiting plates (6), bearings (22) are fixed inside the through holes, the outer movable plate (4) is movably connected to two sides of the top surface of the fixing frame (1), and the inserting rod (8) is fixedly connected to the surface of the outer movable plate (4);

winding mechanism includes interior fly leaf (5) and wind-up roll (7), interior fly leaf (5) are provided with two and vertical swing joint altogether and are at the top surface of mount (1), and between outer fly leaf (4) and limiting plate (6) are arranged respectively in two interior fly leaves (5), the connecting hole has been seted up respectively on the surface of interior fly leaf (5) and limiting plate (6), the both ends of wind-up roll (7) are passed the connecting hole of limiting plate (6) and interior fly leaf (5) respectively and are rotated with limiting plate (6) and interior fly leaf (5) and be connected.

2. The quick-winding heat shrinkable film winder as claimed in claim 1, wherein: the both ends of wind-up roll (7) extend to interior fly leaf (5) respectively outside and be connected with sprocket (16), wind-up roll (7) include two symmetric distribution's unilateral roller (19), and the tip of one of them unilateral roller (19) is provided with inlays tooth (20), the tip of another unilateral roller (19) is provided with inlays groove (21), and inlays through inlaying tooth (20) and inlaying groove (21) between two unilateral rollers (19) and connect.

3. The quick-winding heat shrinkable film winder as claimed in claim 2, wherein: unilateral roller (19) are tubular structure and both ends formation opening, telescopic hole (17) have been seted up to the surface symmetry of unilateral roller (19), and the inside of unilateral roller (19) just is located telescopic hole (17) and installs backup pad (12), the surface of unilateral roller (19) just is located to install between telescopic hole (17) and sprocket (16) bearing (22) and is connected with interior fly leaf (5) rotation through bearing (22).

4. The quick-winding heat shrinkable film winder as claimed in claim 3, wherein: backup pad (12) are including regulating plate (23), roof (18) and support ball (25), the lateral wall of regulating plate (23) is the arc structure, roof (18) are installed and are extended to flexible hole (17) in arc structure middle part and upper end, and spring (24) and the interior wall connection through spring (24) and unilateral roller (19) are installed respectively to the surperficial both sides of arc structure, and regulating plate (23) inner wall middle part is inside sunken to form the V-arrangement structure, and supports ball (25) and fix in the V-arrangement structure.

5. The quick-winding heat shrinkable film winder as claimed in claim 4, wherein: the top surface of the top plate (18) is of a wave-shaped structure and forms grooves (27), protrusions (28) are formed between every two adjacent grooves (27), and anti-slip strips (29) are arranged on the top surfaces of the protrusions (28).

6. The quick-winding heat shrinkable film winder as claimed in claim 1, wherein: the diameter of the inserted bar (8) is smaller than the inner diameter of the unilateral roller (19) and larger than the distance between the two support balls (25), one end of the inserted bar (8) is fixed on the surface of the outer movable plate (4), the other end of the inserted bar horizontally extends towards the inner movable plate (5), and the center of the inserted bar (8) corresponds to the center of the unilateral roller (19).

7. The quick-winding heat shrinkable film winder as claimed in claim 1, wherein: the driving mechanism comprises two groups of driving motors (11), a threaded cylinder (30) and an adjusting rod (31), the adjusting rod (31) is horizontally arranged inside the fixing frame (1), two ends of the adjusting rod are rotatably connected with the inner wall of the fixing frame (1), the driving motors (11) are installed outside the fixing frame (1), and power output ends of the driving motors (11) are respectively connected with the adjusting rod (31).

8. The quick-winding heat shrinkable film winder as claimed in claim 1, wherein: . The surface of adjusting pole (31) is provided with helicitic texture (32) and is connected with a screw thread section of thick bamboo (30) by the middle part symmetry, the top surface bilateral symmetry of a screw thread section of thick bamboo (30) is provided with support column (34), and one of them is a set of the upper end of support column (34) extends to mount (1) top and is connected with interior fly leaf (5) bottom, another group the upper end of support column (34) extends to mount (1) top and is connected with outer fly leaf (4) bottom, and winding motor (35) are installed to a screw thread section of thick bamboo (30) top surface of being connected with interior fly leaf (5), be connected with sprocket (16) on the power take-off end of winding motor (35) and be connected with sprocket (16) of wind-up roll (7) tip through chain (14).

9. The quick-winding heat shrinkable film winder as claimed in claim 1, wherein: the top surface of mount (1) has been seted up outer connecting hole (9), inner connecting hole (13) and spout (10), outer connecting hole (9) and inner connecting hole (13) respectively with support column (34) swing joint, the bottom surface mid-mounting of interior fly leaf (5) and outer fly leaf (4) has removal wheel (33) and through removing wheel (33) and spout (10) sliding connection.

10. The quick-winding heat shrinkable film winder as claimed in claim 1, wherein: the fixing plate is characterized in that fixing plates (2) are vertically arranged on two sides of the top surface of the fixing frame (1) respectively, and gratings (3) are arranged on the surface of each fixing plate (2).

Technical Field

The invention relates to the technical field of thermal shrinkage film rolling, in particular to a thermal shrinkage film rolling machine capable of rolling rapidly.

Background

The heat shrinkable film is a common packaging film, in the packaging application, the idea of heat shrinkage is often utilized to realize the skin effect or bundling wrapping, and simultaneously, the contents are protected from pollution or damage by utilizing the heat shrinkable film, the principle of the heat shrinkage is that when the film is produced, a molecular chain segment with mobility is oriented at the accessory of a melting point or a glass transition temperature, then the film is cooled to a crystallization point or a glass transition temperature, the molecular orientation is rapidly solidified, when the film is reheated to the melting point or the glass transition temperature, the high molecular chain segment can have mobility again, the originally oriented molecular chain segment begins to curl and reconnect for orientation, macroscopically the film is represented as film shrinkage, the heat shrinkable film is widely applied in the packaging industry by virtue of good material strength, excellent transparency, excellent flexibility and easy degradation, the toughness of the heat shrinkable film is good, The anti-collision and anti-tearing performance is strong, the moisture resistance is good, the shrinkage rate is large, the functions of transparent display of commodities can be met, the cost is saved, the paper box packaging.

At present, the existing winding machine needs manual operation in the process of discharging materials after winding a thermal shrinkage film, a whole winding roller is disassembled and replaced, the disassembling and replacing operations are complex, the processing efficiency is affected, and meanwhile certain requirements are also met on manual skills. For this reason, a new scheme needs to be designed to give improvements.

Disclosure of Invention

The invention aims to provide a quick-winding heat shrinkable film winding machine, which solves the problems that the existing winding machine needs manual operation for discharging materials after winding a heat shrinkable film, the whole winding roller is disassembled and replaced, the disassembling and replacing operations are complicated, the processing efficiency is influenced, and meanwhile, certain requirements on manual skills are met, and the actual use requirements are met.

In order to achieve the purpose, the invention provides the following technical scheme: a quick rolling thermal contraction film rolling machine comprises: the winding mechanism and the unloading mechanism are mounted at the top of the fixing frame, the driving mechanism is further mounted inside the fixing frame, a discharging groove is formed in the middle of the top surface of the fixing frame, and the discharging groove is obliquely arranged;

the discharging mechanism comprises an outer movable plate, two limiting plates and an inserting rod, the two outer movable plates and the two limiting plates are vertically arranged on the top surface of the fixing frame and located on two sides of the discharging groove, through holes are formed in the surfaces of the limiting plates, bearings are fixed inside the through holes, the outer movable plates are movably connected to two sides of the top surface of the fixing frame, and the inserting rod is fixedly connected to the surface of the outer movable plate;

the winding mechanism comprises inner movable plates and a winding roller, the inner movable plates are provided with two vertical movable connections on the top surface of the fixing frame, the two inner movable plates are arranged between the outer movable plates and the limiting plates respectively, connecting holes are formed in the surfaces of the inner movable plates and the limiting plates respectively, and two ends of the winding roller penetrate through the connecting holes of the limiting plates and the inner movable plates respectively and are connected with the limiting plates and the inner movable plates in a rotating mode.

As a preferred embodiment of the invention, two ends of the wind-up roll respectively extend to the outside of the inner movable plate and are connected with the chain wheel, the wind-up roll comprises two single-side rolls which are symmetrically distributed, wherein the end part of one single-side roll is provided with the embedded teeth, the end part of the other single-side roll is provided with the embedded grooves, and the two single-side rolls are connected in an embedded manner through the embedded teeth and the embedded grooves.

As a preferred embodiment of the invention, the unilateral roller is of a tubular structure, openings are formed at two ends of the unilateral roller, telescopic holes are symmetrically formed in the surface of the unilateral roller, a support plate is installed inside the unilateral roller and at the telescopic holes, and a bearing is installed on the surface of the unilateral roller and between the telescopic holes and the chain wheel and is rotatably connected with the inner movable plate through the bearing.

As a preferred embodiment of the invention, the support plate comprises an adjusting plate, a top plate and a support ball, the outer side wall of the adjusting plate is of an arc-shaped structure, the top plate is installed in the middle of the arc-shaped structure, the upper end of the top plate extends into the telescopic hole, springs are respectively installed on two sides of the surface of the arc-shaped structure and are connected with the inner wall of the single-side roller through the springs, the middle of the inner wall of the adjusting plate is inwards recessed to form a V-shaped structure, and the support ball is fixed in the V-shaped structure.

As a preferred embodiment of the invention, the top surface of the top plate is in a wave-shaped structure and forms grooves, the adjacent grooves are formed with bulges, and the top surfaces of the bulges are provided with anti-skid strips.

In a preferred embodiment of the present invention, the diameter of the inserted rod is smaller than the inner diameter of the single-side roller and larger than the distance between the two support balls, one end of the inserted rod is fixed on the surface of the outer movable plate, the other end of the inserted rod extends horizontally towards the inner movable plate, and the center of the inserted rod corresponds to the center of the single-side roller.

As a preferred embodiment of the present invention, the driving mechanism includes two sets of driving motors, a threaded cylinder and an adjusting rod, the adjusting rod is horizontally disposed inside the fixing frame, two ends of the adjusting rod are rotatably connected to an inner wall of the fixing frame, the driving motors are mounted outside the fixing frame, and power output ends of the driving motors are respectively connected to the adjusting rod.

As a preferred embodiment of the invention, the surface of the adjusting rod is symmetrically provided with a thread structure from the middle and is connected with a thread cylinder through the thread structure, support columns are symmetrically arranged on two sides of the top surface of the thread cylinder, the upper ends of one group of the support columns extend to the upper part of the fixed frame and are connected with the bottom of the inner movable plate, the upper ends of the other group of the support columns extend to the upper part of the fixed frame and are connected with the bottom of the outer movable plate, the top surface of the thread cylinder connected with the inner movable plate is provided with a winding motor, and the power output end of the winding motor is connected with a chain wheel and is connected with the chain wheel at the end part of the winding roller through a chain.

As a preferred embodiment of the present invention, the top surface of the fixing frame is provided with an external connection hole, an internal connection hole and a sliding slot, and the external connection hole and the internal connection hole are respectively movably connected with the supporting column. The middle parts of the bottom surfaces of the inner movable plate and the outer movable plate are provided with movable wheels which are connected with the sliding grooves in a sliding mode through the movable wheels.

The fixed plates are vertically arranged on two sides of the top surface of the fixed frame respectively, and the grating is arranged on the surface of each fixed plate.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, the heat shrinkable film is wound by the winding roller, the outer movable plates are moved to two sides of the fixing frame by the driving mechanism after winding, so that the inserted rod is drawn out from the inside of the winding roller, the supporting plate is collected into the inside of the winding roller, the inserted rod is moved out and then drives the inner movable plates to move to two sides, and the loosened film wound on the winding roller is separated from the winding roller by the limiting plates, so that the effect of quick discharging is achieved, the inner and outer movable plates are driven to automatically reset after discharging is completed, the winding and unwinding efficiencies are improved, and the manual operation during unwinding is reduced.

Drawings

FIG. 1 is a structural diagram of a fast-rolling heat shrinkable film rolling machine according to the present invention;

FIG. 2 is a structural view of a wind-up roll according to the present invention;

FIG. 3 is a sectional view of a wind-up roll in the first embodiment of the invention;

FIG. 4 is a sectional view of a wind-up roll in the second embodiment of the invention;

FIG. 5 is a block diagram of the top plate of the present invention;

FIG. 6 is a view showing the internal structure of the fixing frame according to the present invention;

FIG. 7 is a block diagram of the inner and outer movable plates of the present invention;

fig. 8 is a connection structure view of the support column and the threaded cylinder according to the present invention.

In the figure, 1, a fixed frame; 2. a fixing plate; 3. a grating; 4. an outer movable plate; 5. an inner movable plate; 6. a limiting plate; 7. a wind-up roll; 8. inserting a rod; 9. an outer connecting hole; 10. a chute; 12. a support plate; 11. a drive motor; 13. an inner connection hole; 14. a chain; 15. a discharging groove; 16. a sprocket; 17. a telescopic hole; 18. a top plate; 19. a single-sided roller; 20. embedding teeth; 21. embedding a groove; 22. a bearing; 23. an adjusting plate; 24. a spring; 25. a support ball; 26. a semi-annular plate; 27. a groove; 28. a protrusion; 29. anti-slip strips; 30. a threaded barrel; 31. adjusting a rod; 32. a thread structure; 33. a moving wheel; 34. a support pillar; 35. a winding motor.

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. 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.

Example one

Referring to fig. 1-8, the present invention provides a technical solution: a quick rolling thermal contraction film rolling machine comprises: the device comprises a fixed frame 1, wherein a winding mechanism and an unloading mechanism are installed at the top of the fixed frame 1, a driving mechanism is also installed inside the fixed frame 1, a blanking groove 15 is formed in the middle of the top surface of the fixed frame 1, the blanking groove 15 is arranged in an inclined manner, a heat shrinkable film is wound through the winding mechanism, the unloading mechanism unloads the heat shrinkable film after the heat shrinkable film is wound, and the driving mechanism drives the winding mechanism and the unloading mechanism; the discharging mechanism comprises an outer movable plate 4, a limiting plate 6 and an inserting rod 8, the limiting plate 6 limits the winding position of the thermal shrinkage film and plays a role in stopping during discharging, the outer movable plate 4 pushes the inserting rod 8 to move, the inserting rod 8 jacks up a supporting plate 12 after being inserted into a winding roller 7, the outer movable plate 4 and the limiting plate 6 are respectively provided with two limiting plates 6, the two limiting plates 6 are vertically arranged on the top surface of the fixing frame 1 and positioned on two sides of the discharging groove 15, through holes are formed in the surfaces of the limiting plates 6, bearings 22 are fixed inside the through holes, the rotation is smoother, the outer movable plate 4 is movably connected to two sides of the top surface of the fixing frame 1, and the inserting rod 8 is fixedly connected to the surface of the outer movable plate 4; the winding mechanism comprises an inner movable plate 5 and a winding roller 7, the inner movable plate 5 is provided with two vertical movable connection plates which are movably connected to the top surface of the fixed frame 1, the two inner movable plates 5 are respectively arranged between the outer movable plate 4 and the limiting plate 6, the surfaces of the inner movable plate 5 and the limiting plate 6 are respectively provided with a connecting hole, two ends of the winding roller 7 respectively penetrate through the connecting holes of the limiting plate 6 and the inner movable plate 5 and are rotatably connected with the limiting plate 6 and the inner movable plate 5, the heat shrinkable film is wound through rotation of the winding roller 7, the inserting rod 8 is moved out of the winding roller 7 after winding is completed, then the winding roller 7 is moved, the two single-side rollers 19 of the winding roller 7 are separated, the heat shrinkable film roll is separated from the single-side rollers 19 and is moved out after falling to the blanking groove 15.

In a further improvement, as shown in fig. 1-3: two ends of the winding roller 7 extend to the outer part of the inner movable plate 5 respectively and are connected with a chain wheel 16, the winding roller 7 comprises two unilateral rollers 19 which are symmetrically distributed, the end part of one unilateral roller 19 is provided with embedded teeth 20, the end part of the other unilateral roller 19 is provided with embedded grooves 21, the two unilateral rollers 19 are connected in an embedded mode through the embedded teeth 20 and the embedded grooves 21, and the unilateral roller 19 on the other side can be driven to rotate by the unilateral roller 19 on one side after the two unilateral rollers 19 are connected. The unilateral roller 19 is tubular structure and both ends form the opening, and telescopic hole 17 has been seted up to unilateral roller 19's surface symmetry, and the inside of unilateral roller 19 just is located telescopic hole 17 department and installs backup pad 12, and unilateral roller 19's surface just is located and installs bearing 22 between telescopic hole 17 and the sprocket 16 and is connected with interior fly leaf 5 rotation through bearing 22, and the inserted bar 8 is held by sprocket 16 and is inserted to unilateral roller 19 inside and with backup pad 12 jack-up. The backup pad 12 includes regulating plate 23, roof 18 and support ball 25, the lateral wall of regulating plate 23 is the arc structure, roof 18 is installed and is extended to flexible downthehole 17 in arc structure middle part and upper end, spring 24 is installed respectively to the surperficial both sides of arc structure and the inner wall connection through spring 24 and unilateral roller 19, the inside sunken V-arrangement structure that forms in regulating plate 23 inner wall middle part, and support ball 25 and fix in the V-arrangement structure, spring 24 plays the effect of support to regulating plate 23, be convenient for regulating plate 23 to reset, inserted bar 8 inserts 19 inside back and support ball 25 contact and will support ball 25 to both sides jack-up with supporting ball 25. The top surface of the top plate 18 is in a wave-shaped structure and forms grooves 27, bulges 28 are formed between every two adjacent grooves 27, and anti-slip strips 29 are arranged on the top surfaces of the bulges 28, so that the anti-slip effect is achieved, and the heat shrinkable film roll core is fixed.

Further improved, as shown in fig. 1: the diameter of the inserted bar 8 is smaller than the inner diameter of the unilateral roller 19 and larger than the distance between the two supporting balls 25, one end of the inserted bar 8 is fixed on the surface of the outer movable plate 4, the other end of the inserted bar 8 horizontally extends towards the inner movable plate 5, the center of the inserted bar 8 corresponds to the center of the unilateral roller 19, and the inserted bar 8 is inserted into the unilateral roller 19 to jack up the supporting plate 12, so that the shrink film roller core is fixed.

Further improved, as shown in fig. 6: the driving mechanism comprises two groups of driving motors 11, a threaded cylinder 30 and an adjusting rod 31, the adjusting rod 31 is horizontally arranged inside the fixed frame 1, two ends of the adjusting rod are rotatably connected with the inner wall of the fixed frame 1, the driving motors 11 are installed outside the fixed frame 1, power output ends of the driving motors 11 are respectively connected with the adjusting rod 31, the driving motors 11 drive the adjusting rod 31 to rotate, and therefore the threaded cylinder 30 is driven to displace and respectively drive the inner movable plate 5 and the outer movable plate 4. The surface of the adjusting rod 31 is symmetrically provided with a thread structure 32 from the middle and is connected with a thread cylinder 30 through the thread structure 32, and simultaneously drives two thread cylinders 30 to move towards the middle or two sides, the two sides of the top surface of the thread cylinder 30 are symmetrically provided with supporting columns 34, the upper ends of one group of supporting columns 34 extend to the upper part of the fixed frame 1 and are connected with the bottom of the inner movable plate 5, the upper ends of the other group of supporting columns 34 extend to the upper part of the fixed frame 1 and are connected with the bottom of the outer movable plate 4, the top surface of the thread cylinder 30 connected with the inner movable plate 5 is provided with a winding motor 35, and the power output end of the winding motor 35 is connected with a chain wheel 16 and is connected with the chain wheel 16 at the end part of the winding roller 7 through a chain 14.

Further improved, as shown in fig. 1: the top surface of the fixing frame 1 is provided with an outer connecting hole 9, an inner connecting hole 13 and a sliding chute 10, and the outer connecting hole 9 and the inner connecting hole 13 are movably connected with the supporting column 34 respectively. The middle parts of the bottom surfaces of the inner movable plate 5 and the outer movable plate 4 are provided with the movable wheels 33, and the movable wheels 33 are connected with the sliding grooves 10 in a sliding mode, so that the moving stability is improved.

Further improved, as shown in fig. 1: the fixed plate 2 is vertically installed respectively to the top surface both sides of mount 1, and the surface mounting of fixed plate 2 has grating 3, detects the position of outer movable plate 4 through grating 3, and the inserted bar 8 on the outer movable plate 4 is separated with wind-up roll 7 after, the driving motor 11 of being connected with interior movable plate 5 of drive.

Example two

As shown in fig. 4: the top surface of the top plate 18 is in a wave-shaped structure and forms grooves 27, bulges 28 are formed between adjacent grooves 27, anti-skidding strips 29 are arranged on the top surfaces of the bulges 28, the end parts of the bulges 28 extend out of the telescopic hole 17 and are connected with semi-ring plates 26, and when the heat shrinkable film without the roller core is wound, the semi-ring plates 26 support the heat shrinkable film

When the invention is used, the heat shrinkable film is wound by the winding roller 7, the outer movable plate 4 is moved to two sides of the fixed frame 1 by the driving mechanism after winding, so that the inserted rod 8 is drawn out of the winding roller 7, the supporting plate 12 is supported by the spring 24, the supporting plate 12 is retracted into the winding roller 7, the position of the outer movable plate 4 is detected by the grating 3, the outer movable plate 4 is close to the grating 3, then the other driving motor 11 is started, the inner movable plates 5 are driven to move, the winding roller 7 is separated after the two inner movable plates 5 simultaneously move to two sides, and the heat shrinkable film is peeled by the limiting plate 6, so that the loosened film wound on the winding roller 7 is separated from the winding roller 7 by the limiting plate 6, the effect of quick discharging is achieved, the inner movable plate 4 and the outer movable plate 4 are driven to reset for next winding after discharging, the winding and unwinding efficiency is improved, the manual operation during the decoiling is reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.