SG193661A1

SG193661A1 - An open-style heat-shrink wrapping system for the protection of luggage

Info

Publication number: SG193661A1
Application number: SG2012021242A
Authority: SG
Inventors: Li Jun Duan
Original assignee: Li Jun Duan
Priority date: 2012-03-23
Filing date: 2012-03-23
Publication date: 2013-10-30
Also published as: CN104245517A; WO2013141811A1; CN104245517B

Abstract

10open-style heat-shrink wrapping system for the protection of luggageABSTRACAn open—sty heat—shrink wrapping system is facilitated and providedfor the protect of luggage. The system includes a pair of thermo blowing towers (3) • wrapping luggage and a slow motion conveyer belt (8) for displacing lug:e between the towers. There is a special designed resistance heating ire assembly (1), which has a luggage size lengthwise spout, inside the the'o—blowing tower (3). When the luggage (10) pre—coated with plastic mate 'al (11) comes on stage of the conveyer belt (8), it can be allowed •wly and smoothly moving from one side to another side swept along the th- lo—blowing towers (3), and therefore to cause plastic material (11) res •ction to the luggage (10), the luggage (10) is then tightly packed of s entire surfaces with the plastic (11' ). It is proven that this syste is capable to get the adequate temperature of wrapping plastic material fo srotecting luggage perfectly. It can be employed with simply setup for a co .9ercial and fashionable passenger service located in public transportation aFIG.! 10An open—style heat—shrink wrapping system is facilitated and provided for the protection of luggage. The system includes a pair of thermo blowing towers (3) for wrapping luggage and a slow motion conveyer belt (8) for displacing luggage between the towers. There is a special designed resistance heating core assembly (1), which has a luggage sized lengthwise spout, inside the thermo—blowing tower (3). When the luggage (10) pre—coated with plastic material (11) comes on stage of the conveyer belt (8), it can be allowed slowly and smoothly moving from one side to another side swept along the thermo—blowing towers (3), and therefore to cause plastic material (11) retraction to the luggage (10), the luggage (10) is then tightly packed of its entire surfaces with the plastic (11' ). It is proven that this system is capable to get the adequate temperature of wrapping plastic material for protecting luggage perfectly. The system can be employed with simply setup for a commercial and fashionable passenger service located in public transportation area.FIG.!

Description

An open—style heat-shrink wrapping system for the protection of luggage

OBJECTS OF THE INVENTION

A simplified system is developed for efficiently carrying out heat shrink wrapping task of protecting luggage with transparent shrinkable plastic material by covering the total surface of luggage. The system has a pair of the resistance heating core thermo-blowing towers with double side partial heating solution, succinct structure and open-style operating environment. A special designed resistance heating core assembly inside the tower is optimized on both given resistance and blowing response not only to stay on excellent wrapping accomplishment but also to gain on power saving and high throughput for the system of protecting luggage.

FIELD OF THE INVENTION

The present invention refers to an open-style heat-shrink wrapping system having achievable low power consumption and fashionable slim structure for the protection of luggage efficiently. It can be employed for passenger services in public transportation environment.

BACKGROUND OF THE INVENTION

Usually, a luggage like a big-size traveling case, for example, to be sent for transportation provider to handle by a mandatory rule of luggage transportation when its owner travels, due to limitation of current handling and storage method offered from them, surface of the traveling case in their processing can be scratched or stained by somehow mishandling and furthermore can be slightly damaged accidentally.

Also, in this situation, a traveling case has 100% risk to be affected.

One of luggage protection method is heat-shrink wrapping of plastic material outside luggage, to closely cover the total surface of luggage for protecting it from any negative affects during transportation. For doing this, however, an oven has been used as conventional method to provide heat source for wrapping plastic material to protect luggage, it is essentially a closed heating furnace having large layout, especially for catering to wrap a 31-inch luggage regularly in size and having more than 200 DEG. C consistent high temperature toughing on passenger luggage entirely even in a short time period during wrapping a luggage. It would not be so reasonable and suitable to commercialize passenger services beneficially in public transportation environment. This invention suggests a pair of open-style partial heating thermo-blowers to equip a highly efficiency double side shrink wrapping system for the protection of luggage in such a way of having a special resistance heating core assembly comprises a set of individual resistor core lining up to form a wide enough luggage size lengthwise heating device and combines with an appropriate fan coil unit to provide hot flowing air with the adequate temperature consistently and independently, it allows this thermo—-blower running successively without descending of airflow temperature no matter how many luggage continuously run in and out the system. It is proven that this heat shrink wrapping system is capable to meet the requirement of wrapping plastic material for protecting luggage perfectly. It can be employed with simply setup duly for a commercial and fashionable passenger services in public transportation area.

SUMMARY OF THE INVENTION

Different from an oven system, a system of the present invention constitutes a pair of the same configured resistance heating core thermo—blowing towers and a conveyer belt for displacing luggage, pieces of wind glass may add in the system for safety purpose. When forming the system for the protection of luggage, firstly put the resistance heating core thermo-blowing towers in a mirror position to be opposite their shooting direction against each other, place then a conveyer belt between them by the motion direction paralleling to front panel of the towers, set bottom end of lengthwise spout of the towers to be about one inch higher than motion surface of the conveyer belt and front end of the spouts are both at appropriate position relative to the motion width of an interval of the conveyer belt. As an option, a system of the present invention allows two pairs and above of resistance heating core thermo—blowing towers setup likely with a single conveyer belt to gain benefits as an advanced shrink wrapping system defined too in the present invention in the following concepts, firstly for tuning on all thermo—blowing towers simultaneously to approach more on high throughput, secondly for backup each other between the towers to utilize uptime and thirdly for time-sharing operating to get more from lifetime. When engaging a system of the present invention, the luggage, pre-coated plastic material means enclosed the luggage, comes on stage of center of the conveyer belt with kept its static upstanding pose and turned its largest sides facing to the towers, by turning on power, the luggage is allowed slowly and smoothly moving from one side to another side swept along the towers, and therefore to cause plastic material retraction to the luggage, the luggage is then tightly packed of its entire surfaces with the plastic. The conveyer belt used for the system can be bi-

directionally operating upon luggage entrance exchange, there is a toggle switch specifically setup on electric control panel of the system to necessarily convert the motion direction for the conveyer belt.

A thermo-blowing tower comprises a resistance heating core assembly, a fan coil unit, a ventilation arrangement and an electric control panel basically. The resistance heating core assembly consists of resistor core, core container, mica liner and fixer, wire joining module and supporting bracket with side-covers. Resistor core has a mica base holder or a ceramic one whatever, given resistance is optimized to cater efficient heating performance and to obtain low power consumption. Core container is made by chromeplate stainless steel, has a cubic layout with wall-less of both rear and front entrances, a pair of short wings next to rear entrance is a mounting base for the core container to land onto the supporting bracket when integrating them, there is also a downward slope formation made in middle portion of both lateral wall of widthwise direction along lengthwise direction from rear to front entrances and thus to cause front entrance smaller; in widthwise direction, the core container is divided into several square and isometric cabins with isolating wall made by the same stainless steel material, each cabin allows containing one resistor core only, the core container is designed 8 inches with 5 cabins in width each for the system of the present invention. Before putting the resistor cores into the core container, use soft mica liner to cover entire inner wall of cabins for heated-electrical insulation between resistor core and core container, resistor core is then inserted from rear entrance of the core container and seated inside nicely without loose, after that, to push the resistor core further more with solid mica fixer which is to be duly placed inside the supporting bracket together with the filled core container there too and then fix them by screws. A fan coil unit, driven by DC motor with an electric control board, provides flowing air at certain airflow rate for heated resistance to efficiently obtain instant and stable temperature response, its front hatch means flowing air output window will be fully covered and sealed by rear portion of the resistance heating core assembly and without gap, the airflow rate for the system of the present invention is optimized in a range of 14- 24m’ /min. A ventilation arrangement is built inside the thermo-blowing tower to exhaust hot remaining air generated from the system, a ventilation channel is firstly formed between inner partition and part of framework of the tower and located next to the thermo—blower inside the tower; a ventilation fan is installed on top of the tower means upper end of the ventilation channel and connects to an air compartment upstairs. When the system working, hot remaining air through holes of front panel of the tower by inhaling action of the ventilation fan enters into the ventilation channel and is discharged into the air compartment immediately, then released to top. There is an electric control panel locates backside of the tower in which contains a set of switches, such as a main circuit breaker, an emergency power switch, power switches for the resistance heating cores and the conveyer, and several green and red indicators also setup on the panel to monitor operating status of each electric part in the system of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

There will be better to illustrate of hereinafter the examples of its embodiments for comprehension of the present invention, reference is made to the drawings attached, in which:

FIG.1 is a planform view of a system for the protection luggage of the present invention. A pair of the thermo-blowing towers in a mirror setup as standard configure of the system can be seen. Luggage is illustrated on stage of the conveyer belt.

FIG.2 is a schematic view in perspective of a system for the protection luggage of the present invention.

FIG.3 is a schematic view in perspective of the resistance heating core assembly cum its combinations used for the thermo-blowing tower of the system of the present invention as in FIG.1 and FIG.2. It illustrates also all constructional components in their fitting sequence.

FIG. 4 is a detailed perspective view of a core container used for the resistance heating core assembly as in FIG.3 for the system of the present invention as in FIG.1 and FIG. 2.

FIG.5 is a perspective view of the thermo-blowing unit, including a fan coil unit and a completed resistance heating core assembly cum its combinations used for the system of the present invention as in FIG. 1 and FIG.2. Luggage is illustrated to have a referenced comparison in size to lengthwise spout of the resistance heating core assembly.

DETAIL DESCRIPTION OF THE PREFERRED EMBODIMENT

As shown in FIG. 1 and FIG.2, A pair of thermo—blowing towers (3) setup in mirror position and a conveyer belt (8) is in place between them, a thermo—-blowing tower (3) includes a resistance hating core assembly (1), a fan coil unit (2), an inner partition (4) to form a ventilation channel, a ventilation fan (5), electric control panel (6) and holes (7) on front panel of the thermo—blowing tower (3). Two wind glasses (9) installed each side of the conveyer belt (8) just both next to the thermo-blowing towers (8) is for safety purpose or somehow for hot remaining air generated during the system operation or idle to be isolated from outside. When a luggage (10) with pre-coated plastic material (11) comes on stage at center of the conveyer belt (8), it is allowed slowly and smoothly moving from one side to another side by swept along the thermo-blowers (3), and to cause plastic material (11) retraction to luggage (10), the luggage (10) is then tightly packed its entire surface with the plastic (11° ). A ventilation arrangement comprising a ventilation channel means formed by inner partition (4), a ventilation fan (5) and an air compartment (12) on top of the thermo- blowing tower (3), hot remaining air generated during the system operation or idle through holes (7) enters into the ventilation channel by inhaling action of the ventilation fan (5) and is discharged into the air compartment (12).

As shown in FIG.3, when integrating a resistance heating core assembly (1), firstly put mica liner formation (13) into cabins of core container (14) to cover the total inner wall for a heated-eclectric insulation, insert then resistor core (15) into the cabins and ensure it to seat inside nicely without loose, push the resistor core (15) from behind with mica fixer (16) further more and come with the filled core container (14) together to fall them on to the supporting bracket (17) and fix them by screws. It should take not that mica liner (13) and resistor core (15) are multi—usage items of up to 5 pieces each in integrating a single segment of the assembly (1), it is not all shown in the drawing but only one each instead. Wire joining module (18) is mounted on lateral wall outside of the supporting bracket (17) for collecting wires of the resistor core (15) there. Side covers (19) are finally taken place to close two extreme side portion of the finalized assembly (1) when wide enough desired lengthwise spout is accomplished.

As shown in FIG.4, enlarged core container (14) as in FIG. 3 has two short wings (23) next to rear entrance (20) spreading fully in widthwise direction. A downward slope formation (22) is made in the middle portion of both lateral wall of widthwise direction along lengthwise direction from rear (20) to front (21) entrances. It is divided too into 5 square and isometric cabins (24) with isolating wall (25) each in widthwise direction, each cabin (24) allows containing one resistor core (13) as in FIG.4 only.

As shown in FIG.5, fan coil unit (2) as in FIG.1 consists of cylidric fan (26), DC motor (27) and motor control board (28), there are two hatches on fan coil unit, rear (29) and front (30), rear one (29) is input window of air with the grids, front one (30) is output window where connects to resistance heating core assembly (1) as designed by its rear portion fully covered and sealed this hatch (30) without gap. Width of lengthwise spout of resistance heating core assembly (1) is decided to be 32 inches as it may fully accommodate the most of regular size of luggage (10) in use.

After aforementioned description, it is note that this invention is not limited to the embodiments as described, it has a possibility of that layout, material and position for making said system in this invention can be varied. Whatever these changes, do not differ substantially the characteristics of the invention with the following claims.

Claims

What is claim is:

1. An open-style double-side partial-heating shrink wrapping system of the present invention comprising a pair or two pair and above of the same resistance heating core thermo-blowing towers for wrapping luggage and a slow motion conveyer belt for displacing luggage. When forming a system of the invention, the resistance heating core thermo—-blowing towers are setup in a mirror position pair by pair opposite their shooting direction against each other and the conveyer belt is in place between them with its motion direction paralleling to front panel of said thermo—blowing towers. When forming a system of the invention, bottom end of lengthwise spout of said thermo-blowing tower is positioned higher than motion surface of the conveyer belt. When forming a system of the invention, wind glass board, probably in equally wide and tall to the resistance heating core tower, can be setup independently both next to at least one thermo-blowing tower as protecting sidewall of the conveyer belt for safety purpose or used for replacing said thermo-blowing tower in the system of the invention when necessary. When engaging said system of the invention, the luggage, pre-coated with plastic material, comes on stage of said conveyer belt with its largest sides facing to the thermo-blowing unit. By turning on power, said luggage is allowed moving from one side to another side of the conveyer by sweeping along said thermo-blowers, and cause plastic material restriction to said luggage and said luggage then is tightly packed of its partial or entire surfaces with the plastic.

2. The system for the protection of luggage as in Claim 1, the resistance heating core thermo-blowing tower comprising a resistance heating core assembly, a fan coil unit, a ventilation arrangement and an electric control panel. When forming a resistance heating core thermo-blower tower, lengthwise spout of the resistance heating core assembly is not laterally positioned at centre but a little either right or left away from centre of front panel. Blowing direction of lengthwise spout of the resistance heating core assembly is vertical to front panel shooting straight forwards. When forming a resistance heating core thermo-blower tower, a ventilation arrangement is taken place in such a way, having a ventilation channel which is built by inner partitions throughout of the framework vertically inside said thermo-blowing tower, having a ventilation fan that is installed at upper end of the ventilation channel and connects to an air compartment on top of said tower. When forming a resistance heating core thermo-blower tower, Holes on front panel is made on the other half opposite the position of lengthwise spout of the resistance heating core assembly, behind the holes is said ventilation channel.

3. The system for the protection of luggage as in Claim 1, the resistance heating core thermo-blowing tower as in Claim 2, the resistance heating core assembly comprising resistor core with given resistance, core container, mica liner and fixer, wire joining module and supporting bracket with side covers. When forming a resistance heating core assembly, firstly put mica liner inside each cabin of the core container to fully cover inner wall of the cabin, insert then resistor core from behind and seat it inside the cabin nicely without loose, after that, push the resistor core further more by mica fixer to be joined together with the short wings of core container, land them onto supporting bracket and fix them by screws. Wire joining module is mounted outside of the supporting bracket for collecting terminals of resistor cores, side-covers is finally taken place to close two extreme sides of said resistance heating core assembly when wide enough desired lengthwise spout is accomplished. When forming a resistance heating core assembly, the components, such as resistor core with given resistance, core container, mica liner and fixer, wire joining module and supporting bracket with side covers, can be used many but in adequate quantity of each.

4, The core container as in Claim 3, it is made by stainless steel, having a cubic layout, having wall-less rear and front entrances, having two short wings next to rear entrance spreading along widthwise direction, having a downward slope formation in middle portion of both sides of widthwise direction along lengthwise direction from rear to front entrances and thus to cause front portion smaller. In widthwise direction, it is divided into several square and isometric cabins with isolating wall each made by the same stainless steel, the resistor core will seat inside the cabin from rear entrance nicely without loose, each cabin allows containing one resistor core only.

5. The system for the protection of luggage as in Claim 1, said conveyer belt can be a bidirectional operating unit.

6. The resistance heating core thermo-blowing tower as in Claim 2, Said air compartment is an empty box with top holes.

7. The resistance heating core assembly as in Claim 3, it connects to fan coil unit at front hatch of said fan coil unit, the hatch is to be fully covered and sealed by rear portion of said heating core assembly without gap. a combination of them forms a thermo-blower, having thermo-— blowing function independently, capable to make hot air flow at certain temperature of 120-180 DEG. C in range of 2-4 inches directly outside of spout of the thermo-blower.

8. The thermo-blower as in Claim 7, it is employed to build a shrink wrapping machine either for the protection of luggage or for wrapping other item in commercial or industrial activities.