US20070234686A1 - Guidance device for thermo shrinkable film machine - Google Patents
Guidance device for thermo shrinkable film machine Download PDFInfo
- Publication number
- US20070234686A1 US20070234686A1 US10/884,138 US88413804A US2007234686A1 US 20070234686 A1 US20070234686 A1 US 20070234686A1 US 88413804 A US88413804 A US 88413804A US 2007234686 A1 US2007234686 A1 US 2007234686A1
- Authority
- US
- United States
- Prior art keywords
- film
- guidance device
- side walls
- shaft
- shrinkable film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
- B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
- B65B9/13—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the preformed tubular webs being supplied in a flattened state
- B65B9/14—Devices for distending tubes supplied in the flattened state
Definitions
- the present invention relates to a guidance device for a thermo shrinkable film machine so as to guide the film to be mounted to the shaft correctly.
- a conventional thermo shrinkable film machine 1 is disclosed in FIGS. 1 and 2 , and generally includes a lower pulley 10 and an upper pulley 11 so as to transfer the film 2 to the shaft 13 which is located below the upper pulley 11 .
- a control unit 12 is located between the shaft 13 and the upper pulley 11 and includes a transferring part 120 having rollers to push the film 2 and a detection part 121 for detecting the movement of the film 2 .
- a cone-shaped top of the shaft 13 and an extension portion extending from the cone-shaped top extend through the transferring part 120 and is ended before the detection part 121 , so that the film 2 is mounted to the extension portion and the shaft right after the film 2 passes through the detection part 121 .
- the present invention intends to provide a guidance device that ensures that the feeding of the film can be controlled normally even if the film is suffered by a side wind.
- the present invention relates to guidance device for a shrinkable film machine and the guidance device includes two side walls which extend through the detection part of the control unit and a slot is defined between the two side walls.
- the slot is located between the upper pulley and the shaft such that the film enters the slot and is guided between the two side walls before entering the transferring part of the control unit.
- FIG. 1 shows a conventional thermo shrinkable film machine wherein the feeding of the film is in a normal status
- FIG. 2 shows that the film is blown by a side wind in the conventional shrinkable film machine and the feeding of the film is in an abnormal status
- FIG. 3 shows the guidance device and the control unit of a thermo shrinkable film machine
- FIG. 4 shows the film is fed into the guidance device of the present invention
- FIG. 5 shows the film is blown by a side wind before entering the guidance device of the present invention
- FIG. 5-1 shows an enlarged view wherein the film enters the slot via the entrance portion of the guidance device
- FIG. 6 is another embodiment of the guidance device of the present invention.
- a shrinkable film machine 1 includes a lower pulley and an upper pulley 3 so as to transfer a thermo shrinkable film 6 .
- a control unit 4 is located between a shaft 7 and the upper pulley 3 , and the control unit 4 includes a detection part 41 and a transferring part 40 .
- the shaft 7 includes a cone-shaped top and an extension portion extending from the tip of the cone-shaped top. The extension portion extends through the transferring part 40 so that the film 6 mounts to the extension portion of the shaft 7 after passed through the detection part 41 .
- the transferring part 40 includes two rods 401 and 402 connected between two blocks.
- Each of the two rods 401 , 402 has wheels 403 , 404 and adjustment members 405 , 406 .
- the two adjustment members 405 , 406 have two respective rollers 407 , 408 which are located between the two rods 401 , 402 .
- the extension portion of the shaft 7 is clamped between the wheels 403 , 404 and rollers 407 , 408 .
- the guidance device 5 of the present invention comprises two side walls and a slot 50 is defined between the two side walls.
- the two side walls extend between the two arms of the detection part 41 of the control unit 4 of the machine 1 .
- Each of the two side walls has a through hole 51 defined therethrough so that the detection sensors (not shown) of the detection part 41 may emit a detection beam (not shown) through the through holes 51 to detect the movement of the film 6 .
- the slot 50 is located between the upper pulley 3 and the shaft 7 .
- Each of the two side walls has an outward leading edge so as to form an entrance portion 501 which includes a divergent opening communicating with the slot 50 .
- the shape of the entrance portion 501 can also be composed of two facing curve surfaces.
- the film 6 if the film 6 is blown by a side wind and the section of the film 6 between the upper pulley 3 and the guidance device 5 is blown off, the film 6 can still be guided into the slot 50 via the entrance portion 501 .
- the film 6 is fed in a straight path in the slot 50 before entering the detection part 41 and the transferring part 40 .
- the guidance device 5 By the guidance device 5 , the shortcoming of the conventional thermo shrinkable film machine can be overcome.
- FIG. 6 shows that the guidance device 5 can be made from a one-piece member and the through hole 521 is drilled transversely through the one-piece member.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
A shrinkable film machine includes a lower pulley and an upper pulley so as to feed the shrinkable film to a control unit located between a shaft and the upper pulley. The control unit includes a detection part and a transferring part. The guidance device includes two side walls and a slot defined therebetween so that the film passes through the slot before being mounted to the shaft. The two side walls extend through the detection part so that the film is guided before entering the transferring part.
Description
- The present invention relates to a guidance device for a thermo shrinkable film machine so as to guide the film to be mounted to the shaft correctly.
- A conventional thermo
shrinkable film machine 1 is disclosed inFIGS. 1 and 2 , and generally includes alower pulley 10 and anupper pulley 11 so as to transfer thefilm 2 to theshaft 13 which is located below theupper pulley 11. A control unit 12 is located between theshaft 13 and theupper pulley 11 and includes a transferring part 120 having rollers to push thefilm 2 and adetection part 121 for detecting the movement of thefilm 2. A cone-shaped top of theshaft 13 and an extension portion extending from the cone-shaped top extend through the transferring part 120 and is ended before thedetection part 121, so that thefilm 2 is mounted to the extension portion and the shaft right after thefilm 2 passes through thedetection part 121. Nevertheless, if thefilm 2 is suffered by a side wind which blows thefilm 2 off from the pre-set path and thefilm 2 enters the detection part at an angle. This results in a larger friction between thefilm 2 and thedetection part 121, and the friction results in a delay of feeding of thefilm 2. The delay makes each section of thefilm 2 to be cut becomes shorter than it is supposed to be. - The present invention intends to provide a guidance device that ensures that the feeding of the film can be controlled normally even if the film is suffered by a side wind.
- The present invention relates to guidance device for a shrinkable film machine and the guidance device includes two side walls which extend through the detection part of the control unit and a slot is defined between the two side walls. The slot is located between the upper pulley and the shaft such that the film enters the slot and is guided between the two side walls before entering the transferring part of the control unit.
- The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.
-
FIG. 1 shows a conventional thermo shrinkable film machine wherein the feeding of the film is in a normal status; -
FIG. 2 shows that the film is blown by a side wind in the conventional shrinkable film machine and the feeding of the film is in an abnormal status; -
FIG. 3 shows the guidance device and the control unit of a thermo shrinkable film machine; -
FIG. 4 shows the film is fed into the guidance device of the present invention; -
FIG. 5 shows the film is blown by a side wind before entering the guidance device of the present invention; -
FIG. 5-1 shows an enlarged view wherein the film enters the slot via the entrance portion of the guidance device, and -
FIG. 6 is another embodiment of the guidance device of the present invention. - Referring to
FIGS. 3 and 4 , ashrinkable film machine 1 includes a lower pulley and anupper pulley 3 so as to transfer a thermoshrinkable film 6. Acontrol unit 4 is located between ashaft 7 and theupper pulley 3, and thecontrol unit 4 includes adetection part 41 and atransferring part 40. Theshaft 7 includes a cone-shaped top and an extension portion extending from the tip of the cone-shaped top. The extension portion extends through thetransferring part 40 so that thefilm 6 mounts to the extension portion of theshaft 7 after passed through thedetection part 41. The transferringpart 40 includes tworods rods wheels adjustment members adjustment members respective rollers rods shaft 7 is clamped between thewheels rollers - The
guidance device 5 of the present invention comprises two side walls and aslot 50 is defined between the two side walls. The two side walls extend between the two arms of thedetection part 41 of thecontrol unit 4 of themachine 1. Each of the two side walls has a throughhole 51 defined therethrough so that the detection sensors (not shown) of thedetection part 41 may emit a detection beam (not shown) through the throughholes 51 to detect the movement of thefilm 6. Theslot 50 is located between theupper pulley 3 and theshaft 7. Each of the two side walls has an outward leading edge so as to form anentrance portion 501 which includes a divergent opening communicating with theslot 50. The shape of theentrance portion 501 can also be composed of two facing curve surfaces. - Referring to
FIGS. 5 and 5 -1, if thefilm 6 is blown by a side wind and the section of thefilm 6 between theupper pulley 3 and theguidance device 5 is blown off, thefilm 6 can still be guided into theslot 50 via theentrance portion 501. Thefilm 6 is fed in a straight path in theslot 50 before entering thedetection part 41 and thetransferring part 40. By theguidance device 5, the shortcoming of the conventional thermo shrinkable film machine can be overcome. -
FIG. 6 shows that theguidance device 5 can be made from a one-piece member and the through hole 521 is drilled transversely through the one-piece member. - While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
Claims (4)
1. A guidance device for a shrinkable film machine which includes a lower pulley and an upper pulley, a control unit located between a shaft and the upper pulley, the control unit having a detection part and a transferring part, the guidance device comprising:
two side walls and a slot defined between the two side walls, the two side walls adapted to extend through the detection part, the slot adapted to be located between the upper pulley and the shaft.
2. The device as claimed in claim 1 , wherein the guidance device includes an entrance portion which includes a divergent opening.
3. The device as claimed in claim 2 , wherein each of the two side walls has an outward leading edge so as to form the entrance portion.
4. The device as claimed in claim 1 , wherein each of the two side walls has a through hole defined therethrough.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/884,138 US20070234686A1 (en) | 2004-06-28 | 2004-06-28 | Guidance device for thermo shrinkable film machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/884,138 US20070234686A1 (en) | 2004-06-28 | 2004-06-28 | Guidance device for thermo shrinkable film machine |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070234686A1 true US20070234686A1 (en) | 2007-10-11 |
Family
ID=38573636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/884,138 Abandoned US20070234686A1 (en) | 2004-06-28 | 2004-06-28 | Guidance device for thermo shrinkable film machine |
Country Status (1)
Country | Link |
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US (1) | US20070234686A1 (en) |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4016704A (en) * | 1975-07-02 | 1977-04-12 | Masaaki Fujio | Method and apparatus for encapsulating container with tubular wrapping member |
US4514966A (en) * | 1982-12-02 | 1985-05-07 | Konstantin Anatole E | Shrink banding machine for use with thin film |
US4600371A (en) * | 1981-07-01 | 1986-07-15 | Jacques Fresnel | Apparatus for fitting and centering thermoplastic sheath around objects by means of a vertical unit with a floating mandrel |
US4693059A (en) * | 1986-02-28 | 1987-09-15 | Rorer Pharmaceutical Corporation | Mandrel for opening a tube of flexible material |
US4765121A (en) * | 1987-05-22 | 1988-08-23 | Pdc International Corporation | Banding apparatus with floating mandrel |
US4806187A (en) * | 1986-06-18 | 1989-02-21 | Fujiyama Giken Co., Ltd. | Method and apparatus for successively applying thermoshrinkable tubular labels to containers |
US4922683A (en) * | 1988-11-10 | 1990-05-08 | Austin-Gordon Design, Inc. | Shrink banding machine |
US5203760A (en) * | 1992-05-15 | 1993-04-20 | Delaware Capital Formation, Inc. | Apparatus for adjustment of the spacing of film drive assemblies in a tubular film forming device |
US5737900A (en) * | 1995-09-15 | 1998-04-14 | Pdc International Corporation | Banding method and apparatus with acceleration of band along floating mandrel aimed toward article to be banded |
US6070399A (en) * | 1998-07-21 | 2000-06-06 | Huang; Fu-Chuan | Guide feeding device for a thermal shrinking film mechanism |
US20050241279A1 (en) * | 2004-04-28 | 2005-11-03 | Tien-Sheng Hsieh | Adjustable mechanism for thermo shrinkable film machine |
US7096651B2 (en) * | 2004-04-28 | 2006-08-29 | Tien-Sheng Hsieh | Synchronously adjusting device for thermo shrinkable film machine |
-
2004
- 2004-06-28 US US10/884,138 patent/US20070234686A1/en not_active Abandoned
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4016704A (en) * | 1975-07-02 | 1977-04-12 | Masaaki Fujio | Method and apparatus for encapsulating container with tubular wrapping member |
US4600371A (en) * | 1981-07-01 | 1986-07-15 | Jacques Fresnel | Apparatus for fitting and centering thermoplastic sheath around objects by means of a vertical unit with a floating mandrel |
US4514966A (en) * | 1982-12-02 | 1985-05-07 | Konstantin Anatole E | Shrink banding machine for use with thin film |
US4693059A (en) * | 1986-02-28 | 1987-09-15 | Rorer Pharmaceutical Corporation | Mandrel for opening a tube of flexible material |
US4806187A (en) * | 1986-06-18 | 1989-02-21 | Fujiyama Giken Co., Ltd. | Method and apparatus for successively applying thermoshrinkable tubular labels to containers |
US4765121A (en) * | 1987-05-22 | 1988-08-23 | Pdc International Corporation | Banding apparatus with floating mandrel |
US4922683A (en) * | 1988-11-10 | 1990-05-08 | Austin-Gordon Design, Inc. | Shrink banding machine |
US5203760A (en) * | 1992-05-15 | 1993-04-20 | Delaware Capital Formation, Inc. | Apparatus for adjustment of the spacing of film drive assemblies in a tubular film forming device |
US5737900A (en) * | 1995-09-15 | 1998-04-14 | Pdc International Corporation | Banding method and apparatus with acceleration of band along floating mandrel aimed toward article to be banded |
US6070399A (en) * | 1998-07-21 | 2000-06-06 | Huang; Fu-Chuan | Guide feeding device for a thermal shrinking film mechanism |
US20050241279A1 (en) * | 2004-04-28 | 2005-11-03 | Tien-Sheng Hsieh | Adjustable mechanism for thermo shrinkable film machine |
US7096651B2 (en) * | 2004-04-28 | 2006-08-29 | Tien-Sheng Hsieh | Synchronously adjusting device for thermo shrinkable film machine |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |