US20090169338A1 - Tape binding device - Google Patents
Tape binding device Download PDFInfo
- Publication number
- US20090169338A1 US20090169338A1 US12/213,353 US21335308A US2009169338A1 US 20090169338 A1 US20090169338 A1 US 20090169338A1 US 21335308 A US21335308 A US 21335308A US 2009169338 A1 US2009169338 A1 US 2009169338A1
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- United States
- Prior art keywords
- tape
- belt
- conveying
- pulley
- binding device
- 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
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- 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
- B65B13/00—Bundling articles
- B65B13/02—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
- B65B13/04—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes with means for guiding the binding material around the articles prior to severing from supply
-
- 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
- B65B13/00—Bundling articles
- B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
- B65B13/24—Securing ends of binding material
- B65B13/32—Securing ends of binding material by welding, soldering, or heat-sealing; by applying adhesive
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
Abstract
A tape binding device includes a loop forming mechanism for forming a loop for winding a material to be bound at an end of a tape. The loop forming mechanism includes a plurality of belt conveying mechanisms arranged in a polygonal shape in a conveyance direction for absorbing the tape by air suction and conveying the tape. Each of the belt conveying mechanisms includes a plurality of endless conveying belts extending parallel to the conveyance direction and arranged in a direction perpendicular to the conveyance direction with a space for air suction provided therebetween.
Description
- 1. Field of the Invention
- The present invention relates to a tape binding device that binds a material to be bound using a tape.
- 2. Description of Related Arts
- In recent years, tape binding devices that form rectangular loops of tapes by sucking in air through a large number of holes formed in conveying belts to absorb the tapes to the conveying belts and convey the tapes are proposed (see, for example, WO95/019913).
- However, in the tape binding device disclosed in WO95/019913, only one belt is wound around a large number of pulleys so that the direction thereof is changed many times. Therefore, the only one belt circulates through the whole of a very long path bent at the pulleys many times. Therefore, the tension of the only one belt is liable to be partially excessive. As a result, an electric motor for driving the belt requires a very large torque. Therefore, a large-sized electric motor must be used, and thus the size of the binding device is increased.
- At the corners of the rectangular loops, the conveyance directions of the tapes must be changed at right angles thereto. In the tape binding device disclosed in WO95/019913 using the only one belt, curved guide plates for direction change are provided at the corners of the rectangular loop.
- However, in the tape binding device disclosed in WO95/019913 using the only one belt, the belt is wound around the respective outer sides of the pulleys. Therefore, the length of the fixed guide plate for direction change is increased. Since an end of the tape slides relative to the long fixed guide plate, the end of the tape that receives sliding resistance is easily prevented from being conveyed.
- Particularly when a material to be bound is one containing water such as tofu, for example, the tape may be absorbed to the long fixed guide plate by the water that has attached to the tape. Furthermore, when the tape is in a thin film shape, it may be electrostatically absorbed to the long fixed guide plate. In these cases, the loop of the tape cannot be satisfactorily formed.
- An object of the present invention is to provide a small-sized tape binding device capable of satisfactorily forming a loop of a tape when the loop is formed by conveying the tape using air suction.
- In order to attain the above-mentioned object, the present invention includes a loop forming mechanism for forming a loop for winding a material to be bound at an end of a tape. The loop forming mechanism includes a plurality of belt conveying mechanisms arranged in a polygonal shape in a conveyance direction for absorbing the tape by air suction and conveying the tape. Each of the belt conveying mechanisms includes a plurality of endless conveying belts extending parallel to the conveyance direction and arranged in a direction perpendicular to the conveyance direction with a space for air suction provided therebetween.
- In the conventional case where only one elongate belt is bent many times through a large number of pulleys, the tension of the longitudinal belt is partially excessive. On the other hand, in the present invention, the plurality of belt conveying mechanisms arranged in a polygonal shape are used. Therefore, the number of times of bending the belt can be made significantly reduced, as compared with the conventional case. As a result, the tension of the belt can be significantly reduced. Therefore, a small-sized electric motor can be used as an electric motor for driving the belt conveying mechanisms, and thus the tape binding device can be miniaturized.
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FIG. 1 is a schematic front view of a tape binding device according to an embodiment of the present invention; -
FIG. 2 is a schematic perspective view of the tape binding device; -
FIG. 3 is a schematic sectional view of an upper part of the tape binding device; -
FIG. 4 is a sectional view taken along a line IV-IV shown inFIG. 3 . -
FIG. 5 is a partially broken perspective view of a conveying belt; -
FIG. 6 is a sectional view of the conveying belt and a second pulley; -
FIG. 7 is a sectional view taken along a line VII-VII shown inFIG. 3 ; -
FIG. 8A is a schematic view of a connection of a second belt conveying mechanism and a third belt conveying mechanism, showing a state immediately before delivery of a tape from the second belt conveying mechanism to the third belt conveying mechanism; -
FIG. 8B is a schematic view of the connection of the second belt conveying mechanism and the third belt conveying mechanism, showing a state immediately after the delivery of the tape from the second belt conveying mechanism to the third belt conveying mechanism; -
FIG. 9 is a schematic view showing a configuration of a conveying roller and a conveying belt in a supplying mechanism and their surroundings; -
FIG. 10 is a schematic view showing a configuration of the conveying roller and the conveying belt in the supplying mechanism and their surroundings, showing a state where a tape T is conveyed with the tape sandwiched between the conveying roller and the conveying belt; -
FIG. 11 is a partially broken side view of a cutting mechanism, a heating mechanism, and a claming mechanism and a driving mechanism including cams for respectively driving the mechanisms; -
FIG. 12 is a schematic front view of the cutting mechanism, showing a state before cutting; -
FIG. 13 is a schematic front view of the cutting mechanism, showing a state after cutting; -
FIG. 14 is a schematic front view of the heating mechanism; -
FIG. 15 is a schematic front view of the clamping mechanism; -
FIG. 16A is a schematic view of a receiving plate and its driving mechanism, showing a state where the receiving plate retreats from a tape passage groove; -
FIG. 16B is a schematic view of the receiving plate and its driving mechanism, showing a state where the receiving plate advances into the tape passage groove; -
FIG. 17 is a schematic view of a driving mechanism for a loop forming mechanism and the supplying mechanism; -
FIG. 18A is a schematic view showing the step of the tape binding device, showing a state where a loop of a tape is formed; -
FIG. 18B is a schematic view showing the step of the tape binding device, showing a state where an end of a tape having a loop formed therein is sandwiched between a first clamp and the receiving plate; -
FIG. 19A is a schematic view showing the step of the tape binding device, showing a state where a loop is tightened around the periphery of a material to be bound; -
FIG. 19B is a schematic view showing the step of the tape binding device, showing a state where an overlapped portion of a tape is sandwiched between a second clamp and the receiving plate; -
FIG. 19C is a schematic view showing the step of the tape binding device, showing a state where a heater is pressed against an overlapped portion of a tape to heat and fuse the tape; -
FIG. 20 is an exploded perspective view of a belt conveying mechanism and a fixed guide plate in another embodiment of the present invention; -
FIG. 21 is a schematic sectional view of the belt conveying mechanism and the fixed guide plate shown inFIG. 20 ; -
FIG. 22 is a partially broken perspective view of a conveying belt in still another embodiment of the present invention; and -
FIG. 23 is a sectional view of the conveying belt shown inFIG. 22 and a tape. - Preferred embodiments of the present invention will be described while referring to the attached drawings.
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FIG. 1 is a schematic front view of a tapebinding device 1 according to an embodiment of the present invention, andFIG. 2 is a schematic perspective view of thetape binding device 1. Referring toFIG. 1 , thetape binding device 1 includes a devicemain body 2, and a table 3, on which a material to be bound A is to be placed, provided at the center in the height direction of the devicemain body 2. As shown inFIG. 2 , atape passage groove 4 through which a tape T for binding the material to be bound A vertically passes is formed in the table 3. The table 3 has afront part 3 a and arear part 3 b sandwiching thetape passage groove 4 therebetween in the front and rear direction. Furthermore, there is provided aperipheral wall 3 c extending downward from the table 3. - As shown in
FIG. 1 , aloop formation space 5 for forming a loop at an end of the tape T is provided above the table 3 in the devicemain body 2. Aloop forming mechanism 6 for forming a loop in theloop formation space 5 includes a negative pressuregroove formation frame 7 arranged in a square annular shape, first to fourthbelt conveying mechanisms 11 to 14, and anair suction pump 8 that sucks air through the negative pressuregroove formation frame 7 in order to absorb the tape T to a conveying belt in each of thebelt conveying mechanisms 11 to 14. - Specifically, the negative pressure
groove formation frame 7 has a groove shape in section to define anegative pressure groove 7 a, as shown inFIG. 4 . The negative pressuregroove formation frame 7 has alower frame 21, avertical frame 22, anupper frame 23, and avertical frame 24, as shown inFIGS. 1 and 2 . Thelower frame 21, thevertical frame 22, theupper frame 23, and thevertical frame 24 are arranged in this order in a square annular shape. Thelower frame 21 connects lower ends of a pair of thevertical frames upper frame 23 connects upper ends of the pair ofvertical frames - The pair of
vertical frames upper frame 23 are arranged above the table 3, and thelower frame 21 is arranged below the table 3. As shown inFIGS. 1 and 3 , the firstbelt conveying mechanism 11 is accommodated within thelower frame 21, the secondbelt conveying mechanism 12 is accommodated within the rightvertical frame 22, the thirdbelt conveying mechanism 13 is accommodated within theupper frame 23, and the fourthbelt conveying mechanism 14 is accommodated within the leftvertical frame 24. - Referring to
FIG. 3 , each of thebelt conveying mechanisms 11 to 14 includes a plurality of conveyingbelts 19 provided side by side. The conveyingbelt 19 in the firstbelt conveying mechanism 11 is wound between afirst pulley 41 and asecond pulley 42. The conveyingbelt 19 in the secondbelt conveying mechanism 12 is wound between thesecond pulley 42 and athird pulley 43. The conveyingbelt 19 in the thirdbelt conveying mechanism 13 is wound between thethird pulley 43 and afourth pulley 44. The conveyingbelt 19 in the fourthbelt conveying mechanism 14 is wound between thefourth pulley 44 and afifth pulley 45. - Thus, the conveying
belts 19 in the adjacent first and secondbelt conveying mechanisms second pulley 42. The conveyingbelts 19 in the adjacent second and thirdbelt conveying mechanisms third pulley 43. Furthermore, the conveyingbelts 19 in the adjacent third and fourthbelt conveying mechanisms fourth pulley 44. The first, second, third and fourthbelt conveying mechanisms 11 to 14 are arranged in a rectangular shape in a conveyance direction L1 extending in a counterclockwise direction inFIG. 3 . - Referring to
FIGS. 1 and 2 , thetape binding device 1 includes a supplyingmechanism 9 for supplying the tape T to theloop forming mechanism 6. The supplyingmechanism 9 includes atape roll 10 rotatably supported by the devicemain body 2. - Referring to
FIGS. 1 and 3 , the supplyingmechanism 9 includes a conveyingroller 31 and a conveyingbelt 32, rotatable forward and backward, which convey the tape T delivered from thetape roll 10 with the tape T sandwiched therebetween in order to supply the tape T to theloop forming mechanism 6. - Referring to
FIGS. 1 and 2 , the supplyingmechanism 9 includes anaccumulator mechanism 33 that is interposed between thetape roll 10 and the conveyingbelt 32 and can pool the tape T having a predetermined length. - The
accumulator mechanism 33 includes a plurality ofrollers upper rollers lower rollers main body 2 so as to be movable up and down. Specifically, a supporting shaft of each of therollers guide groove 38 formed in the devicemain body 2. Furthermore, each of therollers - When the conveying
roller 31 and the conveyingbelt 32 are rotated forward (rotated in a clockwise direction inFIG. 1 ) and the tension of the tape T in theaccumulator mechanism 33 is increased, therollers FIG. 1 against the urging members. With the rise, the tape T pooled in theaccumulator mechanism 33 is amply supplied to theloop forming mechanism 6. - On the other hand, when the conveying
roller 31 and the conveyingbelt 32 are rotated backward (rotated in a counterclockwise direction inFIG. 1 ) and the tension of the tape T in theaccumulator mechanism 33 is decreased, therollers FIG. 1 by the function of the urging members. With the fall, the tape T having a predetermined length is pooled in theaccumulator mechanism 33. - Referring to
FIG. 3 , a first clamping mechanism and cuttingmechanism 15, aheating mechanism 16, and asecond clamping mechanism 17 are arranged between the conveyingroller 31 and a start end of the firstbelt conveying mechanism 11. Furthermore, there is provided a receivingplate 18, which advances into thetape passage groove 4 from the back side of paper (a position below therear part 3 b of the table 3), and is arranged in a position above the first clamping mechanism and cuttingmechanism 15, theheating mechanism 16, and thesecond clamping mechanism 17. - A guiding
member 25 that guides the tape T conveyed by the conveyingbelt 19 in the fourthbelt conveying mechanism 14 to a position below the receivingplate 18 is arranged in the vicinity of thefifth pulley 45 in the fourthbelt conveying mechanism 14. A part of the guidingmember 25 is formed in a comb shape so as to enter an area between the adjacent conveyingbelts 19 in the fourthbelt conveying mechanism 14. - As shown in
FIG. 4 , the conveyingbelts 19 in the thirdbelt conveying mechanism 13 are arranged with a space S for air suction provided therebetween. The otherbelt conveying mechanisms - As shown in
FIGS. 5 and 6 , the conveyingbelt 19 has atape conveying surface 19 a composed of its outer peripheral surface and apulley engagement surface 19 b composed of its inner peripheral surface.Teeth 20 extending in a width direction W1 perpendicular to the conveyance direction L1 of the conveyingbelt 19 are formed on thepulley engagement surface 19 b. That is, the conveyingbelt 19 is composed of a toothed belt (cogged belt) having theteeth 20 provided on thepulley engagement surface 19 b. Furthermore, each of thepulleys 41 to 45 is composed of a toothed pulley (only thesecond pulley 42 is illustrated inFIG. 6 ). - Referring to
FIG. 7 , the plurality of conveyingbelts 19 in the secondbelt conveying mechanism 12 and the plurality of conveyingbelts 19 in the thirdbelt conveying mechanism 13 are wound around the commonthird pulley 43. A supportingshaft 43 a of thethird pulley 43 is rotatably supported on the negative pressuregroove forming frame 7. - In an axial direction X1 of the
third pulley 43, the plurality of conveyingbelts 19 in the secondbelt conveying mechanism 12 and the plurality of conveyingbelts 19 in the thirdbelt conveying mechanism 13 are alternately wound with the conveying belt or belts interposed between the other conveying belt or belts (with one conveying belt interposed between the other conveying belts in an example shown inFIG. 7 ). - Furthermore, the conveying
belts 19 in each of thebelt conveying mechanisms belts 19 in each of the otherbelt conveying mechanisms - Assuming that the conveying
belts 19 in thebelt conveying mechanism 12 and the conveyingbelts 19 in thebelt conveying mechanism 13 are alternately arranged, for example, when the number of conveyingbelts 19 in the secondbelt conveying mechanism 12 is four, the number of conveyingbelts 19 in the thirdbelt conveying mechanism 13 is three, and the conveyingbelt 19 at the center out of the three conveyingbelts 19 is arranged along the center TW1 in the width direction TW of the tape T, as shown inFIG. 7 . - For example, each of the second
belt conveying mechanism 12 and the thirdbelt conveying mechanism 13 may be composed of two conveyingbelts 19, and the two conveyingbelts 19 in the thirdbelt conveying mechanism 13 may be arranged between the two conveyingbelts 19 in the secondbelt conveying mechanism 12. - Since the plurality of conveying
belts 19 in each of thebelt conveying mechanisms FIG. 7 , the conveyingbelts 19 in the secondbelt conveying mechanism 12 can be respectively arranged at a pair of ends TW2 in the width direction TW of the tape T. However, the conveyingbelts 19 in the thirdbelt conveying mechanism 13 are forced to be respectively arranged at positions slightly spaced apart from the pair of ends TW2 in the width direction TW of the tape T. Therefore, the distance from afront wall 23 a or arear wall 23 b of theupper frame 23 to the conveyingbelt 19 is long. - Therefore, it is preferable that the ends TW2 in the width direction TW of the tape T are respectively guided in the conveyance direction L1 (a direction perpendicular to the paper surface, which is not illustrated in
FIG. 4 ) usingguide plates 39 serving as guiding members fixed in an orthogonal manner to inner wall surfaces of thefront wall 23 a and therear wall 23 b and extending in the conveyance direction L1, as shown inFIG. 4 , in order to prevent unnecessary deflection of the tape T. - Furthermore, a plurality of
annular plates 26 serving as guiding members having a larger diameter than that of thethird pulley 43 are provided on an outerperipheral surface 43 b of thethird pulley 43 so as to be rotatable together with thethird pulley 43. Theannular plate 26 is arranged between the conveyingbelt 19 in the secondbelt conveying mechanism 12 and the conveyingbelt 19 in the thirdbelt conveying mechanism 13 which are adjacent to each other. - Referring to
FIG. 3 , theannular plate 26 serving as the guiding member that rotates together with the commonsecond pulley 42 around which the conveyingbelts 19 in the first and secondbelt conveying mechanisms second pulley 42. Theannular plate 26 serving as the guiding member that rotates together with the commonthird pulley 43 around which the conveyingbelts 19 in the second and thirdbelt conveying mechanisms third pulley 43. Furthermore, theannular plate 26 serving as the guiding member that rotates together with the commonfourth pulley 44 around which the conveyingbelts 19 in the third and fourthbelt conveying mechanisms fourth pulley 44. - As shown in
FIG. 8A , the end Ta of the tape T that has been conveyed by the conveyingbelt 19 in the secondbelt conveying mechanism 12 is stripped from the conveyingbelt 19 in the secondbelt conveying mechanism 12 by anouter periphery 26 a of theannular plate 26, having a larger diameter than that of thethird pulley 43, which rotates together with thethird pulley 43 coaxially with thethird pulley 43, and is delivered to the conveyingbelt 19 in the thirdbelt conveying mechanism 13, as shown inFIG. 8B , after the route thereof is changed. Theannular plates 26 respectively provided in thesecond pulley 42 and thefourth pulley 44 also perform the same function. - An annular member for changing the direction of the tape T is not limited to the
annular plate 26. For example, it may be an annular block member. One made of a metal or resin, for example, is usable as the annular member. Furthermore, an elastic member such as rubber may be used as the annular member. When the elastic member is used, the elastic members can be easily mounted on thepulleys 42 to 44. Furthermore, a general-purpose O ring can be also used. In this case, the manufacturing cost can be made low. - Referring to
FIGS. 9 and 10 , the conveyingbelt 32 is composed of an endless belt wound around afirst pulley 51, asecond pulley 52, and atensioner pulley 53. The conveyingbelt 32 includes a region stretched between thefirst pulley 51 and thesecond pulley 52, and the region includes a region D1 in a curved shape along a predetermined region C1 on aperipheral surface 31 a of the conveyingroller 31. - It is preferable that a central angle E1 corresponding to the predetermined region C1 on the
peripheral surface 31 a of the conveyingroller 31 is in a range of 45 to 150 degrees. The central angle E1 is more preferably in a range of 90 to 120 degrees and more preferably in a range of 105 to 115 degrees. - Since the conveying
belt 32 is pressed against theperipheral surface 31 a of the conveyingroller 31 by the tension of the conveyingbelt 32 itself, theperipheral surface 31 a of the conveyingroller 31 can be uniformly pressed. - The
tensioner pulley 53 serves to apply a tension to the conveyingbelt 32. Specifically, thetensioner pulley 53 is rotatably supported around its supportingshaft 56 by a supportingmember 55 rotatably supported around asupport 54 by the devicemain body 2. Thetensioner pulley 53 is arranged at a position spaced a predetermined distance apart from thesupport 54. - The supporting
member 55 is urged in the rotating direction by atension coil spring 57, for example, as an urging member. As a result, thetensioner pulley 53 is urged in such a direction as to apply a tension to the conveyingbelt 32. Thetension coil spring 57 is interposed between ashaft 58, for example, as an engagement portion provided in the devicemain body 2 and ashaft 59, for example, as an engagement portion provided in the supportingmember 55. Atensioner mechanism 60 is composed of thetensioner pulley 53, the supportingmember 55 and thetension coil spring 57. - Furthermore, a plane P1 including a
central axis 51 a of thefirst pulley 51 and acentral axis 52 a of thesecond pulley 52 crosses the conveyingroller 31. By thus setting a positional relationship between the first andsecond pulleys belt 32 and the conveyingroller 31, a configuration in which the conveyingbelt 32 is provided with the region D1 in a curved shape and a configuration in which the conveyingbelt 32 is pressed against theperipheral surface 31 a of the conveyingroller 31 by the tension of the conveyingbelt 32 itself can be easily realized. - Since the conveying
belt 32 includes the region D1 in the curved shape along theperipheral surface 31 a of the conveyingroller 31, as shown inFIG. 10 , the contact area of the conveyingbelt 32 and the conveyingroller 31 with the tape T in the conveyance direction L1 of the tape T can be large. - Even if a pressing force against the wide tape T requiring a conveying force is not strengthened, therefore, the tape T can be satisfactorily conveyed without slipping with the tape T reliably sandwiched between the conveying
roller 31 and the conveyingbelt 32. The pressing force against the tape T need not be strengthened, which can prevent the tape T from being damaged. Furthermore, degradation such as wear does not easily occur in the conveyingroller 31 and the conveyingbelt 32, which allows durability to be improved. - Particularly, the
tensioner pulley 53 can apply a tension to the conveyingbelt 32. Even if the conveyingbelt 32 extends with time, therefore, the extension can be absorbed. Therefore, the pressing force of the conveyingbelt 32 can be stably maintained for a long time period, which allows a stable conveying force to be ensured. - Referring to
FIG. 11 , the first clamping mechanism and cuttingmechanism 15, theheating mechanism 16, and thesecond clamping mechanism 17 are respectively driven so as to be movable up and down by first, second, andthird cams rotating shaft 28 of anelectric motor 27 as a driving member. - Referring to
FIG. 12 , the first clamping mechanism and cuttingmechanism 15 includes asupport 65 supported so as to be movable up and down by a pair ofguides 64 fixed to the devicemain body 2, acam follower 66 supported so as to be rotatable on a lower part of thesupport 65 and moving up and down together with thesupport 65, an urgingmember 67 composed of a tension coil spring, for example, for urging thesupport 65 downward, afirst clamp 68 supported by thesupport 65 so as to be movable up and down and capable of sandwiching the tape T between thefirst clamp 68 and a lower surface of the receivingplate 18, acutter supporting member 69 supported by thesupport 65 so as to be movable up and down, and acutter 70 fixed on an upper part of thecutter supporting member 69 for cutting the tape T by entering acutter entry groove 68 b (also seeFIG. 11 ) formed on alower surface 68 a of thefirst clamp 68. - A
shaft 71 that moves together with thefirst clamp 68 penetrates thesupport 65. Alarge diameter portion 72 provided in theshaft 71 is urged upward by an urgingmember 73 composed of a compression coil spring fitted in theshaft 71, for example, so that thefirst clamp 68 is urged toward its upper position. Astopper 74 that prevents theshaft 71 from slipping off thesupport 65 is provided at a lower end of theshaft 71. - A
shaft 75 that moves together with thecutter supporting member 69 penetrates thesupport 65. Alarge diameter portion 76 provided in theshaft 75 is urged upward by an urgingmember 77 composed of a compression coil spring fitted in theshaft 75, for example, so that thecutter supporting member 69 is urged toward its upper position. Astopper 78 that prevents theshaft 75 from slipping off thesupport 65 is provided at a lower end of theshaft 75. - The pushup by the
cam 61 causes thesupport 65, thecutter supporting member 69, and thefirst clamp 68 to rise together against the urgingmember 67, so that the tape T is first sandwiched between thefirst clamp 68 and the lower surface of the receivingplate 18. This causes thefirst clamp 68 to be positioned at its raised position by the receivingplate 18, to regulate the upward movement of thefirst clamp 68. A regulatingmember 30 receives afront end 18 a of the receivingplate 18, to regulate the upward movement thereof. - Thereafter, the further pushup by the
cam 61 causes thesupport 65 and thecutter supporting member 69 to rise, so that the tape T inserted through atape insertion hole 79 formed between thecutter 70 on an upper surface of thecutter supporting member 69 and thelower surface 68 a of thefirst clamp 68 is pressed into thecutter entry groove 68 b on thelower surface 68 a of thefirst clamp 68 by thecutter 70, as shown inFIG. 12 , and is cut, as shown inFIG. 13 . - Referring to
FIG. 14 , theheating mechanism 16 includes asupport 81 in a T shape supported so as to be movable up and down by a pair ofguides 80 fixed to the devicemain body 2, acam follower 82 supported so as to be rotatable on a lower part of thesupport 81 and moving up and down together with thesupport 81, an urgingmember 83 composed of a tension coil spring, for example, for urging thesupport 81 downward, aheater 84 composed of a planar heater, for example, provided on at least anupper surface 81 b of aheater support 81 a in an upper part of thesupport 81, and anelectric wire 85 for feeding power to theheater 84. - The pushup by the
cam 62 causes thesupport 81 and theheater 84 to rise together against the urgingmember 83. An overlapped portion of the tape T is pressed against the lower surface of the receivingplate 18 and is heated by theheater 84. As a result, the overlapped portion of the tape T is thermally welded. - Referring to
FIG. 15 , thesecond clamping mechanism 17 includes asupport 87 supported so as to be movable up and down by a pair ofguides 86 fixed to the devicemain body 2, acam follower 88 supported so as to be rotatable on a lower part of thesupport 87 and moving up and down together with thesupport 87, an urgingmember 89 composed of a tension coil spring, for example, for urging thesupport 87 downward, and asecond clamp 90 in a horizontally long stick shape fixed on an upper part of thesupport 87 and abuttable against the lower surface of the receivingplate 18. - The pushup by the
cam 63 causes thesupport 87 and theheater 84 to rise together against the urgingmember 89, so that the end Ta of the tape T is sandwiched between thesecond clamp 90 and the lower surface of the receivingplate 18. - Referring to
FIG. 16A , the receivingplate 18 extends forward and backward, and is driven forward and backward by adriving mechanism 91. Thedriving mechanism 91 includes aguide shaft 93 having its end fixed to a supportingblock 92 fixed to the devicemain body 2 and extending forward and backward. Arear end 18 b of the receivingplate 18 is fixed to amovable body 94 supported by theguide shaft 93 so as to be movable in the axial direction of theguide shaft 93. Themovable body 94 has aninsertion hole 94 a through which theguide shaft 93 is inserted so as to be relatively slidable. Astopper 101 that prevents themovable body 94 from slipping off theguide shaft 93 is provided at a rear end of theguide shaft 93. - Furthermore, the supporting
block 92 has a receivingplate insertion groove 95 that supports the receivingplate 18 so that the receivingplate 18 is slidably movable forward and backward. Thefront end 18 a of the receivingplate 18 advances forward through the receivingplate insertion groove 95. - The
driving mechanism 91 includes anelectric motor 96 as a driving member supported by the devicemain body 2, a rotatingmember 97 that rotates together with arotating shaft 96 a of theelectric motor 96, and a connectingarm 96 that connects the rotatingmember 97 and themovable body 94 to each other. The connectingarm 98 has its oneend 98 a connected to themovable body 94 through apivot 99 so as to be rotatable and has theother end 98 b connected to the rotatingmember 97 through apivot 100 so as to be turnable. Thepivot 100 is arranged in the rotatingmember 97 at a position spaced a predetermined distance apart from the rotatingshaft 96 a of theelectric motor 96. - A crank mechanism using the rotating
member 97 and the connectingarm 98 converts rotational motion of theelectric motor 96 into linear motion of the receivingplate 18, to keep the forward and backward movement amounts of the receivingplate 18 large so that they can cope with a case where the wide tape T is used. - The receiving
plate 18 moves between an advance position in which it advances to thetape passage groove 4 in order to receive the material to be bound A, as shown inFIG. 16B , and a retreat position in which it retreats from thetape passage groove 4, as shown inFIG. 16A . - Then, the tape binding operation of the
tape binding device 1 will be described. First, the conveyingroller 31 and the conveyingbelt 32 in the supplyingmechanism 9 rotate forward, to supply the tape T to theloop forming mechanism 6. With the supply, theair suction pump 8 is driven, so that negative pressure is generated within each of theframes 21 to 24 in the negative pressuregroove formation frame 7. The conveyingroller 31 in the supplyingmechanism 9, thefirst pulley 41 in the firstbelt conveying mechanism 11, and thefifth pulley 45 in the fourthbelt conveying mechanism 14 are driven by the same driving mechanism 110. - Specifically, as shown in
FIG. 17 , there are provided apulley 111 together rotatable coaxially with the conveyingroller 31, apulley 112 together rotatable coaxially with thefirst pulley 41 in the firstbelt conveying mechanism 11, and apulley 113 together rotatable coaxially with thefifth pulley 45 in the fourthbelt conveying mechanism 14, and a commonendless belt 114 is wound around thepulleys - A
belt 118 is wound between a drivingpulley 116 that is driven by anelectric motor 115 as a driving member and apulley 117 that rotates together with thepulley 111. Thepulley 111 is driven through thebelt 118 by theelectric motor 115. With the driving, thepulleys belt 114. - The
pulley 111 is driven, so that the conveyingroller 31 in the supplyingmechanism 9 is driven. Furthermore, the conveyingbelt 32 is driven following the conveyingroller 31. Thepulleys first pulley 41 in the firstbelt conveying mechanism 11 and thefifth pulley 45 in the fourthbelt conveying mechanism 14 are driven. That is, thefirst pulley 41 serving as a pulley at a start end of each of thebelt conveying mechanisms 11 to 14 and thefifth pulley 45 serving as a pulley at a final end thereof are driven. This causes the whole of thebelt conveying mechanisms 11 to 14 to be driven. - Thus, the end Ta of the tape T is successively conveyed to the first
belt conveying mechanism 11, the secondbelt conveying mechanism 12, the thirdbelt conveying mechanism 13, and the fourthbelt conveying mechanism 14, to form a loop TL of the tape T, as shown inFIG. 18A . - Then, the end Ta of the tape T is sandwiched between the raised
first clamp 68 in the first clamping mechanism and cuttingmechanism 15 and the receivingplate 18, as shown inFIG. 18B . - Then, the material to be bound A is placed on the receiving
plate 18, as shown inFIG. 19A . - Then, the driving of the
air suction pump 8 is stopped, so that absorption of the conveyingbelt 19 in each of thebelt conveying mechanisms 11 to 14 is released, and the conveyingroller 31 and the conveyingbelt 32 are rotated backward, so that the loop TL is tightened. Therefore, the tape T has a shape along the periphery of the material to be bound A. - Then, the overlapped portion Tb of the tape T is sandwiched between the raised
second clamp 90 in thesecond clamping mechanism 17 and the lower surface of the receivingplate 18, as shown inFIG. 19B . Then, the raisedheater 84 in theheating mechanism 16 heats the overlapped portion Tb of the tape T with the overlapped portion Tb pressed against the lower surface of the receivingplate 18, to thermally weld the overlapped portion Tb of the tape T, as shown inFIG. 19C . - The raised
cutter 70 in the first clamping mechanism and cuttingmechanism 15 cuts an extra length portion of the tape T to complete the binding at substantially the same timing as or slightly delayed timing from the operation of theheater 84, which is not illustrated. - According to the present embodiment, the following function and effect are produced. That is, in the conventional case where only one elongate belt is bent many times through a large number of pulleys, the tension of the longitudinal belt is partially excessive. On the other hand, in the present embodiment, the plurality of
belt conveying mechanisms 11 to 14 arranged in a polygonal shape are used. Therefore, the number of times of bending of the conveyingbelt 19 can be reduced significantly, as compared with the conventional case. As a result, the tension of the conveyingbelt 19 can be significantly reduced. Therefore, a small-sized motor can be used as theelectric motor 115 for driving thebelt conveying mechanisms 11 to 14, and thus thetape binding device 1 can be miniaturized. - Since the conveying
belts 19 in the adjacent first and secondbelt conveying mechanisms second pulley 42, the distance between thetape conveying surfaces 19 a of the conveyingbelts 19 can be brought closer to each other between the first and secondbelt conveying mechanisms second pulley 42. - Since the conveying
belts 19 in the adjacent second and thirdbelt conveying mechanisms third pulley 43, and the conveyingbelts 19 in the adjacent third and fourthbelt conveying mechanisms fourth pulley 44, the same effect is obtained. - The
annular plate 26 that rotates together with the commonsecond pulley 42 around which the conveyingbelts 19 in the adjacent first and secondbelt conveying mechanisms second pulley 42. Theannular plate 26 that rotates together with the commonthird pulley 43 around which the conveyingbelts 19 in the adjacent second and thirdbelt conveying mechanisms third pulley 43. Furthermore, theannular plate 26 that rotates together with the commonfourth pulley 44 around which the conveyingbelts 19 in the adjacent third and fourthbelt conveying mechanisms fourth pulley 44. - As shown in
FIGS. 8A and 8B , for example, theannular plate 26 arranged coaxially with the commonthird pulley 43 around which the conveyingbelts 19 in the adjacent second and thirdbelt conveying mechanisms third pulley 43. When theannular plate 26 changes the direction of the tape T, therefore, a relative speed between theouter periphery 26 a of theannular plate 26 and the tape T is low. As a result, theannular plate 26 does not impose on the tape T such sliding resistance as to prevent the tape T from being conveyed. - Even if the tape T is absorbed to the
outer periphery 26 a of theannular plate 26 by water that has adhered to the tape T when the material to be bound A containing water such as tofe, for example, is bound, the tape T can be satisfactorily conveyed toward the next thirdbelt conveying mechanism 13 because theannular plate 26 rotates together with thethird pulley 43. This is also effective when a thin tape T is electrostatically absorbed to a peripheral surface of theannular plate 26. - When the tape T is absorbed to the conveying
belt 19 by suction and is conveyed to form the rectangular loop TL, therefore, the loop TL of the tape T can be satisfactorily formed. Thus, the loop TL can be also satisfactorily formed when the material to be bound A including water such as tofu is bound and when the material to be bound A is bound using the tape T that is easy to be electrostatically absorbed. Furthermore, theannular plate 26 may be only disposed in each of thepulleys - The plurality of conveying
belts 19 in each of the second and thirdbelt conveying mechanisms belts 19 in each of thebelt conveying mechanisms 11 to 13 uniformly, and can be satisfactorily conveyed. The same is true for the otherbelt conveying mechanisms - Since the conveying
belts 19 in the secondbelt conveying mechanism 12 and the conveyingbelts 19 in the thirdbelt conveying mechanism 13 are alternately arranged in the axial direction X1 of thethird pulley 43, and theannular plates 26 are respectively arranged between the conveyingbelts 19 in the secondbelt conveying mechanism 12 and the conveyingbelts 19 in the thirdbelt conveying mechanism 13, the direction of the wide tape T can be satisfactorily changed. The same is true for the respectiveannular plates 26 coaxial with thesecond pulley 42 and thefourth pulley 44. - The
annular plate 26 may be formed of a single material integrally with each of thepulleys annular plate 26 composed of another member may be attached to each of thepulleys - Since the conveying
belts 19 in thebelt conveying mechanisms 11 to 14 are respectively composed of toothed belts wound around thepulleys belt 19 is not shifted from the toothed pulley. Therefore, no excessive tension is applied to the conveyingbelt 19. From this point, a small-sized electric motor-can be also used as theelectric motor 115 for driving thebelt conveying mechanisms 11 to 14, and thus thetape binding device 1 can be miniaturized. - The present invention is not limited to the above-mentioned embodiment. Although in the present embodiment, the
annular plate 26 that rotates together with thethird pulley 43 is used as a guiding member for forcing the direction of the tape T to be changed from the secondbelt conveying mechanism 12 to the thirdbelt conveying mechanism 13, which are adjacent to each other in the conveyance direction L1, theannular plate 26 may be replaced with a fixedguide plate 260 as shown inFIG. 20 . - The fixed
guide plate 260 as a guiding member includes amain body 261 and a plurality of guidingpieces 262. Themain body 261 is opposed to the outer periphery of thethird pulley 43 fixed to the negative pressuregroove formation frame 7 and serving as a common pulley. The guidingpiece 262 extends into the space S between the conveyingbelts 19 from themain body 261. The guidingpiece 262 has an inclined guidingsurface 262 that is inclined in the conveyance direction L1 of the tape T and is abuttable to the end Ta in the conveyance direction L1 of the tape T. - While the fixed
guide plate 260 is used as a guiding member in the present embodiment, the guidingpiece 262 in the fixedguide plate 260 enters the space S between the conveyingbelts 19 in an inclined manner, as shown inFIG. 21 . Therefore, the end Ta of the tape T conveyed by the conveyingbelt 19 does not collide with an end surface of the guidingpiece 262. That is, the end Ta of the tape T is smoothly stripped from the conveyingbelt 19 in the secondbelt conveying mechanism 12 by the inclined guidingsurface 263 of the guidingpiece 262, and is satisfactorily delivered to the conveyingbelt 19 in the thirdbelt conveying mechanism 13. - Furthermore, a
groove 29 extending in the width direction W1 perpendicular to the conveyance direction L1 of the conveyingbelt 19 may be formed on thetape conveying surface 19 a of the conveyingbelt 19, as shown inFIG. 22 . - In this case, air can be sucked in through a large number of
grooves 29 on thetape conveying surface 19 a, which can improve the capability of the conveyingbelt 19 to convey the tape T. Particularly, the tape T can be absorbed over the whole area in the width direction W1 of the conveyingbelt 19. Moreover, the tape T in a small amount enters thegroove 29 in a convex manner, as shown inFIG. 23 . Therefore, the capability of the conveyingbelt 19 to convey the tape T can be enhanced, which allows the tape T to be satisfactorily conveyed without slipping. Note that thegroove 29 may be inserted through at least one of the pair of spaces S with the conveyingbelt 19 held therebetween. - While the present invention has been described in detail by a specific embodiment, those skilled in the art that have understood the above-mentioned contents will consider their alteration, modification and equivalents. Therefore, the present invention should be in the scope of claims and its equivalents.
- This application is based on and claims the benefit of priority from Japanese Patent Application No. 2007-340919 filed with the Japanese Patent Office on Dec. 28, 2007 and Japanese Patent Application No. 2008-075883 filed with the Japanese Patent Office on Mar. 24, 2008, the contents of which are incorporated herein by reference.
Claims (10)
1. A tape binding device, comprising:
a loop forming mechanism for forming a loop for winding a material to be bound at an end of a tape,
wherein the loop forming mechanism includes a plurality of belt conveying mechanisms arranged in a polygonal shape in a conveyance direction for absorbing the tape by air suction and conveying the tape, and
each of the belt conveying mechanisms includes a plurality of endless conveying belts extending parallel to the conveyance direction and arranged in a direction perpendicular to the conveyance direction with a space for air suction provided therebetween.
2. The tape binding device according to claim 1 , wherein
the plurality of belt conveying mechanisms include belt conveying mechanisms that are adjacent to one another in the conveyance direction, and
the respective conveying belts in the belt conveying mechanisms that are adjacent to each other in the conveyance direction are wound around a common pulley.
3. The tape binding device according to claim 2 , further comprising
a guiding member for forcing a direction of the tape to be changed from one of the belt conveying mechanisms that are adjacent to each other in the conveyance direction to the other belt conveying mechanism.
4. The tape binding device according to claim 3 , wherein
the guiding member includes an annular member provided so as to be rotatable together and coaxial with the pulley and having a larger diameter than that of the pulley, and
the direction of the tape is forced to be changed from one of the belt conveying mechanisms that are adjacent to each other in the conveyance direction to the other belt conveying mechanism by an outer periphery of the annular member.
5. The tape binding device according to claim 4 , wherein
the annular member includes an annular plate.
6. The tape binding device according to claim 3 , wherein
the annular member includes an annular elastic member.
7. The tape binding device according to claim 3 , wherein
the loop forming mechanism includes a negative pressure groove formation frame forming a negative pressure groove communicating with the space,
the guiding member includes a main body fixed to the negative pressure groove formation frame and opposed to an outer periphery of the common pulley, and a guiding piece extending into the space from the main body, and
the guiding piece has an inclined guiding surface that is inclined in the conveyance direction and is abuttable to the end in the conveyance direction of the tape.
8. The tape binding device according to claim 1 , wherein
the conveying belts in each of the belt conveying mechanisms that are adjacent to each other in the conveyance direction are symmetrical with respect to a center position in a width direction of the tape perpendicular to the conveyance direction.
9. The tape binding device according to claim 1 , wherein
the conveying belt in each of the belt conveying mechanism is composed of a toothed belt wound around a toothed pulley.
10. The tape binding device according to claim 1 , wherein
the plurality of conveying belts in each of the belt conveying mechanisms include a conveying belt having a tape conveying surface having a large number of grooves to be communicated with the space formed therein.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-340919 | 2007-12-28 | ||
JP2007340919 | 2007-12-28 | ||
JP2008075883A JP5172411B2 (en) | 2007-12-28 | 2008-03-24 | Tape bundling device |
JP2008-075883 | 2008-03-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20090169338A1 true US20090169338A1 (en) | 2009-07-02 |
Family
ID=40429778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/213,353 Abandoned US20090169338A1 (en) | 2007-12-28 | 2008-06-18 | Tape binding device |
Country Status (2)
Country | Link |
---|---|
US (1) | US20090169338A1 (en) |
EP (1) | EP2077232B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110056174A1 (en) * | 2009-09-10 | 2011-03-10 | Krones Ag | Method and device for making packs |
NL2012215C2 (en) * | 2014-02-06 | 2015-08-10 | Bandall Benelux B V | DEVICE FOR APPLYING A PRODUCT OF A BAND OF FLEXIBLE MATERIAL AROUND. |
CN106143986A (en) * | 2016-08-25 | 2016-11-23 | 辽宁东升精机有限公司 | C-type track core body automatic flexible strapping machine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109808937B (en) * | 2019-04-08 | 2021-01-19 | 湖州师范学院求真学院 | Traffic sign post sectional type cloth cladding equipment |
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US3831512A (en) * | 1972-12-26 | 1974-08-27 | Interlake Inc | Strap feed track with fluid-actuated strap end positioning means |
US4794671A (en) * | 1986-09-14 | 1989-01-03 | Giora Goldman | Method of opening bales of cotton and other fibers |
US5168686A (en) * | 1990-05-10 | 1992-12-08 | Ats Automatic Taping Systems Ag | Formation, maintenance and tensioning of a tying loop |
US5611276A (en) * | 1993-05-10 | 1997-03-18 | Heidelberger Druckmaschinen Ag | Suction-type grippers for a sheet transfer drum |
US5755084A (en) * | 1994-01-25 | 1998-05-26 | Band-It Patent B.V. | Device for arranging a band of flexible material round at least one product |
US6604345B1 (en) * | 1999-06-23 | 2003-08-12 | Sollas Holland B.V. | Apparatus for applying a banderole |
US7207161B2 (en) * | 2004-02-20 | 2007-04-24 | Heidelberger Druckmaschinen Ag | Apparatus for banderoling or banding stacks of flat workpieces |
US20070163209A1 (en) * | 2004-03-05 | 2007-07-19 | Sauer Hartmut K | Banding system and process for banding piled products |
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DE59601424D1 (en) * | 1995-05-03 | 1999-04-15 | Automatic Taping Systems | FORMING, KEEPING UP AND TENSIONING A BANDEROLE LOOP |
DE10143839A1 (en) * | 2001-09-06 | 2003-03-27 | Bielomatik L O S Gmbh | Machine for banding book blocks comprises rectangular frame with oval central opening, strap being fed around it on surface of opening which is fitted with suction apertures |
-
2008
- 2008-06-18 US US12/213,353 patent/US20090169338A1/en not_active Abandoned
- 2008-06-19 EP EP08011177A patent/EP2077232B1/en active Active
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Publication number | Priority date | Publication date | Assignee | Title |
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US3831512A (en) * | 1972-12-26 | 1974-08-27 | Interlake Inc | Strap feed track with fluid-actuated strap end positioning means |
US4794671A (en) * | 1986-09-14 | 1989-01-03 | Giora Goldman | Method of opening bales of cotton and other fibers |
US5168686A (en) * | 1990-05-10 | 1992-12-08 | Ats Automatic Taping Systems Ag | Formation, maintenance and tensioning of a tying loop |
US5611276A (en) * | 1993-05-10 | 1997-03-18 | Heidelberger Druckmaschinen Ag | Suction-type grippers for a sheet transfer drum |
US5755084A (en) * | 1994-01-25 | 1998-05-26 | Band-It Patent B.V. | Device for arranging a band of flexible material round at least one product |
US6604345B1 (en) * | 1999-06-23 | 2003-08-12 | Sollas Holland B.V. | Apparatus for applying a banderole |
US7207161B2 (en) * | 2004-02-20 | 2007-04-24 | Heidelberger Druckmaschinen Ag | Apparatus for banderoling or banding stacks of flat workpieces |
US20070163209A1 (en) * | 2004-03-05 | 2007-07-19 | Sauer Hartmut K | Banding system and process for banding piled products |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US20110056174A1 (en) * | 2009-09-10 | 2011-03-10 | Krones Ag | Method and device for making packs |
NL2012215C2 (en) * | 2014-02-06 | 2015-08-10 | Bandall Benelux B V | DEVICE FOR APPLYING A PRODUCT OF A BAND OF FLEXIBLE MATERIAL AROUND. |
WO2015119499A1 (en) * | 2014-02-06 | 2015-08-13 | Bandall Benelux B.V. | Apparatus for providing a band of flexible material around a product |
CN106143986A (en) * | 2016-08-25 | 2016-11-23 | 辽宁东升精机有限公司 | C-type track core body automatic flexible strapping machine |
Also Published As
Publication number | Publication date |
---|---|
EP2077232B1 (en) | 2011-11-16 |
EP2077232A1 (en) | 2009-07-08 |
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Owner name: TAIYO SEIKI CO., LTD., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HATAYA, HIROSHI;REEL/FRAME:021179/0514 Effective date: 20080604 |
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