EP0653352A1 - Incrementally variable transmission between prestretching rollers in a stretch-film wrapping machine - Google Patents
Incrementally variable transmission between prestretching rollers in a stretch-film wrapping machine Download PDFInfo
- Publication number
- EP0653352A1 EP0653352A1 EP94850205A EP94850205A EP0653352A1 EP 0653352 A1 EP0653352 A1 EP 0653352A1 EP 94850205 A EP94850205 A EP 94850205A EP 94850205 A EP94850205 A EP 94850205A EP 0653352 A1 EP0653352 A1 EP 0653352A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gear train
- variable transmission
- roller
- shaft
- prestretching
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 44
- 229920006302 stretch film Polymers 0.000 title claims abstract description 11
- 239000002985 plastic film Substances 0.000 claims abstract description 15
- 229920006255 plastic film Polymers 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000009467 reduction Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
- B65B11/02—Wrapping articles or quantities of material, without changing their position during the wrapping operation, e.g. in moulds with hinged folders
- B65B11/025—Wrapping articles or quantities of material, without changing their position during the wrapping operation, e.g. in moulds with hinged folders by webs revolving around stationary articles
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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
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
- B65B11/04—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material the articles being rotated
- B65B11/045—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material the articles being rotated by rotating platforms supporting the articles
-
- 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
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
- B65B2011/002—Prestretching mechanism in wrapping machines
Definitions
- the invention relates to an incrementally variable transmission for transmission of a torque between input and output rollers in a pre-stretching device for a stretch-film wrapping machine, to achieve selected prestretching of a plastic film with a predetermined yield point.
- the input roller is caused to rotate at lower rpm than the output roller.
- the transmission comprises a shifting mechanism arranged in a housing with various gearing increments between an input and an output shaft, and has a device for engaging and disengaging the input shaft to or from the shifting mechanism.
- Stretch-film wrapping machines with prestretching for stationary or rotating goods are known.
- Stretch-film possibly supplemented with top-film or topsheets, can provide a universal protecting covering for the goods at the same time as non-uniform goods are held together.
- Stretch-film wrapping is a good protector for foodstuffs and chemical technical products, for example.
- a known stretch-film wrapping machine comprises essentially a film roll or thin plastic film, e.g. Teno Cast 20 ⁇ , a prestretching device comprising two parallel rollers, which are caused to rotate at different rpm, and a driven rotatable turntable which supports the goods to be wrapped and which are suitably stacked on a pallet.
- the first roller to which the film comes from the plastic film roll, is caused to rotate at relatively low rpm, e.g. 10 rpm, and this determines the speed at which the film will leave the film roll.
- the second roller via which the film after prestretching leaves the prestretching device, is caused to rotate in the opposite direction, and at a higher rpm than the first roller, e.g.
- the film will leave the prestretching device at a higher speed than the feeding speed. This achieves a prestretching of the film in the transition portion between the two rollers which results in a film thickness of about 3 ⁇ , which is desirable for economic reasons among other things.
- a drive device in the form of an electric motor for example, which supplies a positive torque to the rollers and thus brings the film tension down to very small values.
- a known solution is to arrange a transmission with a fixed set of gears between the roller shafts, but this solution requires an unreasonable amount of work since the transmission ratio can only be changed by replacing the gears. It is also known to arrange a gear transmission with fixed ratio increments and a number of gears on each roller shaft, thus permitting three selectable transmission ratios between the shafts. Via a clutch, the input roller can be engaged or disengaged from the gear transmission. Alternatively, a belt transmission with continuously variable transmission ratio between the shafts is used.
- the known devices are unsatisfactory in their function because they are complicated and bulky, have few feed steps or have a continuously variable transmission and must be stopped or disassembled for resetting. There is also lacking automatic release of the input roller from the transmission, the output roller and in applicable cases from the torque device if there is a break in the film, which can result in time-consuming downtime due to the fact that the film will be wrapped around the rollers.
- the purpose of the present invention is therefore to provide an integrated transmission unit which does not have the above mentioned disadvantages, which is simple to manufacture at low cost, can be easily shifted between a large number of transmission steps and has automatic release of the input roller when there is extremely low film tension or film breakage.
- the transmission comprises a gear unit and a clutch device, that the input and output shafts of the gear unit are coaxial, that the clutch device is a one-way clutch which is in engagement when the input roller is imparted, by means of the tension in the film between the rollers, a torque from the output roller, and that the clutch assumes its free-wheeling position when said torque is not present.
- the stretch-film wrapping machine has a prestretching device 2, which has an input roller 4 and an output roller 6, said rollers having parallel shafts.
- the rollers are rotatably mounted in a frame 8 and are coupled to each other by means of a reduction gear 14 of conventional type, consisting of a large gear 10 and a small gear 12, and by means of a transmission unit 16 with variable transmission ratios.
- the rollers are shown here not in their entirety but only partially and, as regards the input shaft, only very schematically, since this roller is of a commonly occurring type and the transmission unit 16 is mounted on the output roller 6.
- the rollers are rotatably mounted in their respective ends and have essentially the same diameter.
- the circumference of each roller is provided with a friction-increasing element (not shown) or coating, to provide better grip between the rollers and the plastic film.
- the transmission unit 16 is in the form of a housing 18 and has a planetary gear train 22 engageable with a free-wheel clutch 20 as well as a pulley 24.
- the housing 18 has two cylindrical concentric inter-engaging components, an outer component 26 which also serves as the output shaft of the planetary gear train 22 and an inner housing component 28, to which the gear 12 is fixed.
- the inner housing component serves as an input shaft to the planetary gear train.
- the free-wheel clutch 20 and the planetary gear train 22 are housed in the housing 18.
- the planetary gear train has a central through-shaft 30 which is concentrically disposed in the housing 18 and has two shaft ends 32,34 which extend from either end piece 36,38, located in a free end of the respective components 26,28.
- the shaft end 32 extending from the inner housing component is fixed by means of a lock screw 40 in an opening in a mounting plate 44 anchored on the frame 8 via a bracket 42.
- the shaft end 34 extending from the opposite end piece 38 of the housing 18 is threaded and screwed into a corresponding thread in one end of a rod shaft 46, which extends through the center of the output roller 6 mounted rotatably on the same.
- the end piece 38 and the housing 26 are rotatable relative to each other.
- the thread of the pin 34 is locked to the thread of the rod shaft 46 by lock nuts 48, which also prevent the end piece 34 from being rotated relative to the shaft end and the rod shaft.
- the other end of the rod shaft 46 is screwed securely by means of a screw fastener 50 to the lower portion of the frame 8.
- the housing component 26 has a annular flange 52 disposed close to the outer end adjacent the end piece 38, on which flange the upper end of the output roller 6 is screwed.
- An annular gap 54 close to the upper end of the roller 6 assures that the roller and the rod shaft will be free of each other.
- the housing component 26 with the flange 52 and output roller 6 will be rotatable relative to the shaft end 34 fixed in the frame 8 and the housing end piece 38.
- the end of the rod shaft 46 mounted in the lower portion of the frame 8 is coupled via a bearing 56 of conventional type, e.g.
- a driving device 58 for driving the prestretching device 2 at a predetermined rpm during a predetermined time interval comprises a conventional electric motor (not shown), which is connected via a drive belt (not shown) to the pulley 24 mounted on the periphery of the housing component 26.
- the stretch-film wrapping machine also has a sensor (not shown) which regulates, via a computer control, the rpm of the drive motor depending on the speed at which the plastic film is wrapped around the goods, and which senses whether the film is intact and stops the drive motor if the film breaks.
- the transmission unit 16 there can be used with advantage a bicycle hub with seven gear speeds and a free-wheel arrangement. Therefore the design of the bicycle hub will not be discussed in more detail here with a planetary gear train and a free-wheel.
- the bicycle hub need only be modified by replacing the sprocket with the gear 12, removing one spoke flange (the other serves as the annular flange 52) and by mounting the pulley 24 around the outer component 26 of the bicycle hub.
- the bicycle hub is mounted as described above by anchoring each shaft end 32,34 in the frame 8 of the prestretching device 2 and by screwing the upper end of the roller 6 to the annular flange 52.
- the stretch-film wrapping machine with the prestretching device 2 functions as follows. In normal operation without the motor engaged, the tension in the film, which is generated when the goods on the turntable is rotated, strives to turn the two rollers 4,6 at the same rpm, provided they have the same outer diameter.
- the reduction gear train 14 forces, however, the input roller 4 to rotate at a lower rpm than the output roller 6.
- a suitable value of the gear ratio in the reduction gear train is 1:3.
- a one-way clutch 20 is mounted between the gear 12 and the planetary gear train 22 on the output roller 6 in such a manner that the one-way clutch is in engagement when the input roller 4 via its gear 10, the reduction gear train 14 and the planetary gear train 22 strives to "push” the output roller 6. For this reason and due to the film tension and the gear ratio, the input roller is "braked” and rotates at a given speed ratio as long as the planetary gear train 22 transmits the rotation of the gear 12 unchanged to the roller 6.
- the plastic film is thus prestretched between the rollers but this is sufficient only for a certain film with specific properties.
- the prestretching can be both optimized for plastic film of varying thickness and quality and be varied for increased utility of films with certain specific properties.
- a film with a thickness of approximately 3 ⁇ can, however, be easily torn off, especially since the tensile force exerted by the pallet goods is not even but is pulsating. In order to reduce the risk of film breakage, it is therefore advantageous to engage the drive device 58, whereby the film tension is minimized between the prestretching device 2 and the pallet goods. In a motor-driven prestretching device, it is also possible to achieve further stretching of the film.
- Figure 3 shows the achievable degree of stretching with motor operation, as a function of the selected gear. It is evident from the diagram that a plastic film of the same quality as Teno Cast 20 ⁇ is theoretically prestretchable 60 to 360% depending on the gear increment selected (1 - 7).
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
- Gear Transmission (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
Description
- The invention relates to an incrementally variable transmission for transmission of a torque between input and output rollers in a pre-stretching device for a stretch-film wrapping machine, to achieve selected prestretching of a plastic film with a predetermined yield point. The input roller is caused to rotate at lower rpm than the output roller. The transmission comprises a shifting mechanism arranged in a housing with various gearing increments between an input and an output shaft, and has a device for engaging and disengaging the input shaft to or from the shifting mechanism.
- Stretch-film wrapping machines with prestretching for stationary or rotating goods are known. Stretch-film, possibly supplemented with top-film or topsheets, can provide a universal protecting covering for the goods at the same time as non-uniform goods are held together. Stretch-film wrapping is a good protector for foodstuffs and chemical technical products, for example.
- A known stretch-film wrapping machine comprises essentially a film roll or thin plastic film, e.g. Teno Cast 20 µ, a prestretching device comprising two parallel rollers, which are caused to rotate at different rpm, and a driven rotatable turntable which supports the goods to be wrapped and which are suitably stacked on a pallet. The first roller, to which the film comes from the plastic film roll, is caused to rotate at relatively low rpm, e.g. 10 rpm, and this determines the speed at which the film will leave the film roll. The second roller, via which the film after prestretching leaves the prestretching device, is caused to rotate in the opposite direction, and at a higher rpm than the first roller, e.g. 30 rpm, depending on the speed at which the film is wrapped around the goods. Since the rollers have friction-increasing ele ments and/or coatings on their surfaces and the plastic film runs in an S-shape in contact with the counter-rotating rollers, the film will leave the prestretching device at a higher speed than the feeding speed. This achieves a prestretching of the film in the transition portion between the two rollers which results in a film thickness of about 3 µ, which is desirable for economic reasons among other things.
- In order to reduce the risk of film breakage in the space between the prestretching device and the goods, it is suitable to equip the machine with a drive device, in the form of an electric motor for example, which supplies a positive torque to the rollers and thus brings the film tension down to very small values.
- In order to make it possible to adapt the machine to plastic films of varying thickness and quality, it is desirable to be able to change the transmission ratio between the rollers. A known solution is to arrange a transmission with a fixed set of gears between the roller shafts, but this solution requires an unreasonable amount of work since the transmission ratio can only be changed by replacing the gears. It is also known to arrange a gear transmission with fixed ratio increments and a number of gears on each roller shaft, thus permitting three selectable transmission ratios between the shafts. Via a clutch, the input roller can be engaged or disengaged from the gear transmission. Alternatively, a belt transmission with continuously variable transmission ratio between the shafts is used. In this case it is, however, difficult to find a command value as a starting value for a certain transmission ratio, which experientially provides a suitable prestretching of a film with known properties. It is also known to impart a positive torque to the input roller by means of a torque device and a standard reduction gear train. Thus, the tensile force in the film web will be less between the output roller and the goods than between the rollers in the prestretching device.
- The known devices are unsatisfactory in their function because they are complicated and bulky, have few feed steps or have a continuously variable transmission and must be stopped or disassembled for resetting. There is also lacking automatic release of the input roller from the transmission, the output roller and in applicable cases from the torque device if there is a break in the film, which can result in time-consuming downtime due to the fact that the film will be wrapped around the rollers.
- The purpose of the present invention is therefore to provide an integrated transmission unit which does not have the above mentioned disadvantages, which is simple to manufacture at low cost, can be easily shifted between a large number of transmission steps and has automatic release of the input roller when there is extremely low film tension or film breakage.
- This is achieved according to the invention by virtue of the fact that the transmission comprises a gear unit and a clutch device, that the input and output shafts of the gear unit are coaxial, that the clutch device is a one-way clutch which is in engagement when the input roller is imparted, by means of the tension in the film between the rollers, a torque from the output roller, and that the clutch assumes its free-wheeling position when said torque is not present.
- Advantageous further developments and improvements of the invention are possible by the steps disclosed in the dependent claims.
- A preferred embodiment of the invention is shown in the accompanying drawings and will be described in more detail in the following description.
- Figure 1
- shows the principle of a transmission in a prestretching device,
- Figure 2
- shows schematically a gear means provided with a free-wheel and a drive device, mounted in a partially cut-away pre-stretching device,
- Figure 3
- is a diagram which shows the achievable prestretching with a motor-driven prestretching device, and
- Figure 4
- is a diagram showing the achievable prestretching with a non-driven prestretching device.
- According to the preferred embodiment of the invention, the stretch-film wrapping machine has a
prestretching device 2, which has an input roller 4 and anoutput roller 6, said rollers having parallel shafts. The rollers are rotatably mounted in aframe 8 and are coupled to each other by means of areduction gear 14 of conventional type, consisting of alarge gear 10 and asmall gear 12, and by means of atransmission unit 16 with variable transmission ratios. For the sake of clarity, the rollers are shown here not in their entirety but only partially and, as regards the input shaft, only very schematically, since this roller is of a commonly occurring type and thetransmission unit 16 is mounted on theoutput roller 6. The rollers are rotatably mounted in their respective ends and have essentially the same diameter. The circumference of each roller is provided with a friction-increasing element (not shown) or coating, to provide better grip between the rollers and the plastic film. - The
transmission unit 16 is in the form of ahousing 18 and has aplanetary gear train 22 engageable with a free-wheel clutch 20 as well as apulley 24. Thehousing 18 has two cylindrical concentric inter-engaging components, anouter component 26 which also serves as the output shaft of theplanetary gear train 22 and aninner housing component 28, to which thegear 12 is fixed. The inner housing component serves as an input shaft to the planetary gear train. The free-wheel clutch 20 and theplanetary gear train 22 are housed in thehousing 18. The planetary gear train has a central through-shaft 30 which is concentrically disposed in thehousing 18 and has twoshaft ends end piece respective components shaft end 32 extending from the inner housing component is fixed by means of alock screw 40 in an opening in amounting plate 44 anchored on theframe 8 via abracket 42. Theshaft end 34 extending from theopposite end piece 38 of thehousing 18 is threaded and screwed into a corresponding thread in one end of arod shaft 46, which extends through the center of theoutput roller 6 mounted rotatably on the same. Theend piece 38 and thehousing 26 are rotatable relative to each other. The thread of thepin 34 is locked to the thread of therod shaft 46 bylock nuts 48, which also prevent theend piece 34 from being rotated relative to the shaft end and the rod shaft. The other end of therod shaft 46 is screwed securely by means of ascrew fastener 50 to the lower portion of theframe 8. Thehousing component 26 has aannular flange 52 disposed close to the outer end adjacent theend piece 38, on which flange the upper end of theoutput roller 6 is screwed. Anannular gap 54 close to the upper end of theroller 6 assures that the roller and the rod shaft will be free of each other. Thus, thehousing component 26 with theflange 52 andoutput roller 6 will be rotatable relative to theshaft end 34 fixed in theframe 8 and thehousing end piece 38. The end of therod shaft 46 mounted in the lower portion of theframe 8 is coupled via abearing 56 of conventional type, e.g. a journal bearing, a ball bearing or a roller bearing, with the lower portion of theroller 6. A driving device 58 for driving theprestretching device 2 at a predetermined rpm during a predetermined time interval comprises a conventional electric motor (not shown), which is connected via a drive belt (not shown) to thepulley 24 mounted on the periphery of thehousing component 26. - The stretch-film wrapping machine also has a sensor (not shown) which regulates, via a computer control, the rpm of the drive motor depending on the speed at which the plastic film is wrapped around the goods, and which senses whether the film is intact and stops the drive motor if the film breaks.
- In the
transmission unit 16 there can be used with advantage a bicycle hub with seven gear speeds and a free-wheel arrangement. Therefore the design of the bicycle hub will not be discussed in more detail here with a planetary gear train and a free-wheel. The bicycle hub need only be modified by replacing the sprocket with thegear 12, removing one spoke flange (the other serves as the annular flange 52) and by mounting thepulley 24 around theouter component 26 of the bicycle hub. The bicycle hub is mounted as described above by anchoring eachshaft end frame 8 of theprestretching device 2 and by screwing the upper end of theroller 6 to theannular flange 52. - The stretch-film wrapping machine with the
prestretching device 2 according the invention functions as follows. In normal operation without the motor engaged, the tension in the film, which is generated when the goods on the turntable is rotated, strives to turn the tworollers 4,6 at the same rpm, provided they have the same outer diameter. The reduction gear train 14 forces, however, the input roller 4 to rotate at a lower rpm than theoutput roller 6. A suitable value of the gear ratio in the reduction gear train is 1:3. In thetransmission unit 16, a one-way clutch 20 is mounted between thegear 12 and theplanetary gear train 22 on theoutput roller 6 in such a manner that the one-way clutch is in engagement when the input roller 4 via itsgear 10, thereduction gear train 14 and theplanetary gear train 22 strives to "push" theoutput roller 6. For this reason and due to the film tension and the gear ratio, the input roller is "braked" and rotates at a given speed ratio as long as theplanetary gear train 22 transmits the rotation of thegear 12 unchanged to theroller 6. The plastic film is thus prestretched between the rollers but this is sufficient only for a certain film with specific properties. By means of theplanetary gear train 22 it is, however, possible to change the gear ratio between thegear 12 and theoutput roller 6 within a range of -41% to +69% in seven increments. Thus, the prestretching can be both optimized for plastic film of varying thickness and quality and be varied for increased utility of films with certain specific properties. - A film with a thickness of approximately 3 µ can, however, be easily torn off, especially since the tensile force exerted by the pallet goods is not even but is pulsating. In order to reduce the risk of film breakage, it is therefore advantageous to engage the drive device 58, whereby the film tension is minimized between the
prestretching device 2 and the pallet goods. In a motor-driven prestretching device, it is also possible to achieve further stretching of the film. Figure 3 shows the achievable degree of stretching with motor operation, as a function of the selected gear. It is evident from the diagram that a plastic film of the same quality asTeno Cast 20 µ is theoretically prestretchable 60 to 360% depending on the gear increment selected (1 - 7). In practical tests performed, the achievable degree of prestretching was somewhat less, however. A prestretching of more than 250% is, however, achievable without film breakage. If, however, the film for some reason, e.g. uneven quality, does break, the one-way clutch 20 will immediately disengage the input roller 4 from thetransmission unit 16 and thus, from the drivenroller 6. Disengagement also occurs instantaneously at extremely low film tension between the prestretching device and the pallet goods. The output roller can thus continue to rotate a short period of time with the film sliding over the periphery of the roller since the friction will be reduced when the tension in the film is absent, without the film, as in conventional arrangements, becoming tangled between the rollers. In anundriven prestretching device 2 it is possible, as is evident from Figure 4, with the gear increments 1-4, to increase the degree of prestretching from 60 to approximately 210% while retaining operational reliability. - With the prestretching device according to the invention, it is thus possible to use simply and effectively, and at low cost, plastic film with various properties in an optimal manner, thus substantially reducing the cost of the plastic film used.
- Of particular advantage is the fact that a bicycle hub of reliable design, available on the market, after a small amount of adaptation, can be used as the transmission unit. An integrated unit is thereby provided coaxially mounted in one end of the output roller, which unit has three functions, viz. as a gear shift mechanism with seven gear speeds, a free-wheel clutch for automatic release of the input roller from the output roller in the event of film breakage, and a device for imparting torque to the output roller.
- Finally, it is pointed out that the present invention is not to be considered limited to the embodiment described above by way of example. Rather, the invention comprises all those embodiments and equivalent solutions falling within the scope of the following patent claims.
Claims (12)
- Incrementally variable transmission (16) for transmitting torque between input and output rollers (4,6) in a prestretching device (2) of a stretch-film wrapping machine, to achieve selectable prestretching of a plastic film running in contact with said rollers and having a predetermined yield point, the input roller (4) being caused to rotate at a lower rotational speed than the output roller (6), said transmis sion (16) comprising a multiratio gear train (22) between an input shaft (28) and an output shaft (26), said gear train (22) being arranged in a housing (18), and a device (20) for engaging and disengaging the input shaft (28) to and from said gear train (22), characterized in that the input shaft (28) and the output shaft (26) of the gear train (22) are coaxial, that the engaging and disengaging device is a free-wheel clutch (20) which assumes its engagement position when the input roller (4), by means of the tension in the film between the rollers, is imparted a torque from the output roller (6), and that the clutch (20) assumes a free-wheel position when said torque is absent.
- Incrementally variable transmission according to Claim 1, characterized in that the housing (18) has two cylindrical, mutually concentric and interengaging components: an outer main component (26) constituting the output shaft of the gear train, and an inner housing component (28) forming the input shaft of the gear train, between said components (26,28) the free-wheel clutch (20) and the majority of the active components of the gear train (22) being enclosed.
- Incrementally variable transmission according to Claim 1 or 2, characterized in that the gear train (22) has a center through-shaft (30) which is concentrically arranged relative to the housing (18), the shaft ends (32,34) of which projecting outside individual end pieces of the housing, and that the shaft end (32) project ing from the inner housing component (28) is non-rotatably anchored in a mounting plate (44) of the prestretching device.
- Incrementally variable transmission according to Claim 3, characterized in that the shaft end (34) projecting from the opposite endpiece of the main component (26) is non-rotatably anchored in one end of a rod shaft (46) of relatively small diameter, that the rod shaft extends through the center of the output roller (6) rotatably mounted on the same, and that the other end of the rod shaft (46) is non-rotatably anchored (8,50) in the bottom portion of the prestretching device.
- Incrementally variable transmission according to Claims 1 - 4, characterized in that the gear train (22) has at least four gear speed increments.
- Incrementally variable transmission according to Claims 1 - 4, characterized in that the gear train (22) has seven different gear speed increments.
- Incrementally variable transmission according to one of Claims 2 - 6, characterized in that the main component (26) of the housing has adjacent its distal end (38) an annular flange (52), to which one end of the output roller (6) is securely fixed.
- Incrementally variable transmission according to one of the preceding claims, characterized in that the output roller (6) is joined to a drive device (58) which imparts a positive torque to the roller as a function of a predetermined value of the rotational direction of the roller and rotational speed for a given running speed of the plastic film as it leaves the prestretching device.
- Incrementally variable transmission according to Claim 8, characterized in that the drive device (58) comprises a pulley (24) fixed to the periphery of the main component (26) of the housing, said pulley being connectable via a drive belt to a corresponding pulley on a drive motor mounted in the prestretching device (2).
- Incrementally variable transmission according to Claim 9, characterized in that the gear train (22), the free-wheel clutch (20) and the pulley (24) are built together into a transmission unit (16).
- Incrementally variable transmission according to one of the preceding claims, characterized in that the gear train (22) consists of at least one planetary gear train.
- Incrementally variable transmission according to one of the preceding claims, characterized in that the transmission unit (18) is equipped with a bicycle hub of a type known per se.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9303804A SE502041C2 (en) | 1993-11-17 | 1993-11-17 | Stepwise variable transmission between stretch rollers in a stretch film machine |
SE9303804 | 1993-11-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0653352A1 true EP0653352A1 (en) | 1995-05-17 |
EP0653352B1 EP0653352B1 (en) | 1997-08-13 |
Family
ID=20391783
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19940850205 Expired - Lifetime EP0653352B1 (en) | 1993-11-17 | 1994-11-17 | Incrementally variable transmission between prestretching rollers in a stretch-film wrapping machine |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0653352B1 (en) |
DE (1) | DE69404948T2 (en) |
DK (1) | DK0653352T3 (en) |
ES (1) | ES2105592T3 (en) |
SE (1) | SE502041C2 (en) |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1188671A1 (en) | 2000-09-18 | 2002-03-20 | Leng Pac AB | Method and device for pre-stretching of a stretch film |
GB2395165A (en) * | 2002-11-11 | 2004-05-19 | Arboc Ltd | Rollers for pre-stretching a plastic film |
WO2007010341A1 (en) * | 2005-07-15 | 2007-01-25 | Bema S.R.L. | Method and system for wrapping loads with pre-stretched plastic film |
WO2008155129A1 (en) * | 2007-06-21 | 2008-12-24 | Combipac Bv | Prestretched film |
US20120174533A1 (en) * | 2005-04-08 | 2012-07-12 | Lantech.Com, Llc | Method and Apparatus For Dispensing An Amount Of Film Relative To Girth |
US9725195B2 (en) | 2008-01-07 | 2017-08-08 | Lantech.Com, Llc | Electronic control of metered film dispensing in a wrapping apparatus |
US9764867B2 (en) | 2011-01-18 | 2017-09-19 | Signode Industrial Group Llc | Gripper |
US9908648B2 (en) | 2008-01-07 | 2018-03-06 | Lantech.Com, Llc | Demand based wrapping |
US9932134B2 (en) | 2012-09-07 | 2018-04-03 | Signode Industrial Group Llc | Method and apparatus for setting corner protectors on a load |
US9932137B2 (en) | 2012-10-25 | 2018-04-03 | Lantech.Com, Llc | Corner geometry-based wrapping |
US10005581B2 (en) | 2012-10-25 | 2018-06-26 | Lantech.Com, Llc | Effective circumference-based wrapping |
US10005580B2 (en) | 2012-10-25 | 2018-06-26 | Lantech.Com, Llc | Rotation angle-based wrapping |
US10011383B2 (en) | 2011-09-30 | 2018-07-03 | Signode Industrial Group Llc | Method for converting a wrapping machine into a transport condition, and a wrapping machine |
US10053253B2 (en) | 2014-10-07 | 2018-08-21 | Lantech.Com, Llc | Graphical depiction of wrap profile for load wrapping apparatus |
US10138012B2 (en) | 2013-10-31 | 2018-11-27 | Signode Industrial Group Llc | Apparatus for fixing and releasing the end of a roll of wrapping film |
US10227152B2 (en) | 2014-01-14 | 2019-03-12 | Lantech.Com, Llc | Dynamic adjustment of wrap force parameter responsive to monitored wrap force and/or for film break reduction |
US10239645B2 (en) | 2013-02-13 | 2019-03-26 | Lantech.Com, Llc | Packaging material profiling for containment force-based wrapping |
US10273031B2 (en) | 2015-02-02 | 2019-04-30 | Signode Industrial Group Llc | Packaging apparatus and method for operating same |
US10421570B2 (en) | 2014-05-07 | 2019-09-24 | Signode Industrial Group Llc | Method for packaging of an article of merchandise |
US10526097B2 (en) | 2011-05-06 | 2020-01-07 | Signode Industrial Group Llc | Reefing under stretch |
US10934034B2 (en) | 2015-09-25 | 2021-03-02 | Lantech.Com, Llc | Stretch wrapping machine with automated determination of load stability by subjecting a load to a disturbance |
US11208225B2 (en) | 2018-08-06 | 2021-12-28 | Lantech.Com, Llc | Stretch wrapping machine with curve fit control of dispense rate |
US11479378B2 (en) | 2019-09-09 | 2022-10-25 | Lantech.Com, Llc | Stretch wrapping machine with dispense rate control based on sensed rate of dispensed packaging material and predicted load geometry |
US11518557B2 (en) | 2019-09-19 | 2022-12-06 | Lantech.Com, Llc | Packaging material grading and/or factory profiles |
US11667416B2 (en) | 2017-09-22 | 2023-06-06 | Lantech.Com, Llc | Load wrapping apparatus wrap profiles with controlled wrap cycle interruptions |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4336679A (en) * | 1979-11-21 | 1982-06-29 | Lantech Inc. | Film web drive stretch wrapping apparatus and process |
FR2544702A1 (en) * | 1983-04-20 | 1984-10-26 | Polypack Ind | Device enabling a plastic film to be drawn between two rollers and packaging machines comprising it |
EP0220712A1 (en) * | 1985-10-30 | 1987-05-06 | PIERI S.r.l. | Process and apparatus for wrapping loads in stretchable film |
FR2606365A1 (en) * | 1986-11-12 | 1988-05-13 | Sfeima Sarl | Method and device for packaging loads by means of extendible films with a self-adhesive face and by means of extendible nets |
-
1993
- 1993-11-17 SE SE9303804A patent/SE502041C2/en not_active IP Right Cessation
-
1994
- 1994-11-17 EP EP19940850205 patent/EP0653352B1/en not_active Expired - Lifetime
- 1994-11-17 DE DE1994604948 patent/DE69404948T2/en not_active Expired - Lifetime
- 1994-11-17 ES ES94850205T patent/ES2105592T3/en not_active Expired - Lifetime
- 1994-11-17 DK DK94850205T patent/DK0653352T3/en active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4336679A (en) * | 1979-11-21 | 1982-06-29 | Lantech Inc. | Film web drive stretch wrapping apparatus and process |
FR2544702A1 (en) * | 1983-04-20 | 1984-10-26 | Polypack Ind | Device enabling a plastic film to be drawn between two rollers and packaging machines comprising it |
EP0220712A1 (en) * | 1985-10-30 | 1987-05-06 | PIERI S.r.l. | Process and apparatus for wrapping loads in stretchable film |
FR2606365A1 (en) * | 1986-11-12 | 1988-05-13 | Sfeima Sarl | Method and device for packaging loads by means of extendible films with a self-adhesive face and by means of extendible nets |
Cited By (50)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1188671A1 (en) | 2000-09-18 | 2002-03-20 | Leng Pac AB | Method and device for pre-stretching of a stretch film |
GB2395165A (en) * | 2002-11-11 | 2004-05-19 | Arboc Ltd | Rollers for pre-stretching a plastic film |
GB2395165B (en) * | 2002-11-11 | 2005-03-23 | Arboc Ltd | A pre-stretching device |
US20120174533A1 (en) * | 2005-04-08 | 2012-07-12 | Lantech.Com, Llc | Method and Apparatus For Dispensing An Amount Of Film Relative To Girth |
US9187193B2 (en) * | 2005-04-08 | 2015-11-17 | Lantech.Com, Llc | Method and apparatus for dispensing an amount of film relative to girth |
WO2007010341A1 (en) * | 2005-07-15 | 2007-01-25 | Bema S.R.L. | Method and system for wrapping loads with pre-stretched plastic film |
WO2008155129A1 (en) * | 2007-06-21 | 2008-12-24 | Combipac Bv | Prestretched film |
EP2164770A1 (en) | 2007-06-21 | 2010-03-24 | Combipac BV | Prestretched film |
BE1017659A3 (en) * | 2007-06-21 | 2009-03-03 | Combipac Bv | FRONT SMOKED ROLLER FOIL. |
EP2164770B1 (en) | 2007-06-21 | 2016-03-30 | Combipac BV | Prestretched film |
US9725195B2 (en) | 2008-01-07 | 2017-08-08 | Lantech.Com, Llc | Electronic control of metered film dispensing in a wrapping apparatus |
US9908648B2 (en) | 2008-01-07 | 2018-03-06 | Lantech.Com, Llc | Demand based wrapping |
US9764867B2 (en) | 2011-01-18 | 2017-09-19 | Signode Industrial Group Llc | Gripper |
US10093439B2 (en) | 2011-01-18 | 2018-10-09 | Signode Industrial Group Llc | Gripper |
US11273935B2 (en) | 2011-05-06 | 2022-03-15 | Signode Industrial Group Llc | Reefing under stretch |
US10526097B2 (en) | 2011-05-06 | 2020-01-07 | Signode Industrial Group Llc | Reefing under stretch |
US10011383B2 (en) | 2011-09-30 | 2018-07-03 | Signode Industrial Group Llc | Method for converting a wrapping machine into a transport condition, and a wrapping machine |
US9932134B2 (en) | 2012-09-07 | 2018-04-03 | Signode Industrial Group Llc | Method and apparatus for setting corner protectors on a load |
US11174056B2 (en) | 2012-10-25 | 2021-11-16 | Lantech.Com, Llc | Load wrapping apparatus with controlled interventions |
US11111046B2 (en) | 2012-10-25 | 2021-09-07 | Lantech.Com, Llc | Load wrapping apparatus with rotational data shift |
US9932137B2 (en) | 2012-10-25 | 2018-04-03 | Lantech.Com, Llc | Corner geometry-based wrapping |
US10005581B2 (en) | 2012-10-25 | 2018-06-26 | Lantech.Com, Llc | Effective circumference-based wrapping |
US11111045B2 (en) | 2012-10-25 | 2021-09-07 | Lantech.Com, Llc | Dynamic rotation angle-based wrapping |
US11104464B2 (en) | 2012-10-25 | 2021-08-31 | Lantech.Com, Llc | Rotation angle-based wrapping of loads with varying dimensions |
US10005580B2 (en) | 2012-10-25 | 2018-06-26 | Lantech.Com, Llc | Rotation angle-based wrapping |
US10239645B2 (en) | 2013-02-13 | 2019-03-26 | Lantech.Com, Llc | Packaging material profiling for containment force-based wrapping |
US11912445B2 (en) | 2013-02-13 | 2024-02-27 | Lantech.Com, Llc | Containment force-based wrapping |
US10717554B2 (en) | 2013-02-13 | 2020-07-21 | Lantech.Com, Llc | Containment force-based wrapping |
US11518558B2 (en) | 2013-02-13 | 2022-12-06 | Lantech.Com, Llc | Containment force-based wrapping |
US11407538B2 (en) | 2013-02-13 | 2022-08-09 | Lantech.Com, Llc | Packaging material profiling for containment force-based wrapping |
US10138012B2 (en) | 2013-10-31 | 2018-11-27 | Signode Industrial Group Llc | Apparatus for fixing and releasing the end of a roll of wrapping film |
US11597554B2 (en) | 2014-01-14 | 2023-03-07 | Lantech.Com, Llc | Dynamic adjustment of wrap force parameter responsive to monitored wrap force and/or for film break reduction |
US10227152B2 (en) | 2014-01-14 | 2019-03-12 | Lantech.Com, Llc | Dynamic adjustment of wrap force parameter responsive to monitored wrap force and/or for film break reduction |
US11685567B2 (en) | 2014-01-14 | 2023-06-27 | Lantech.Com, Llc | Dynamic adjustment of wrap force parameter responsive to monitored wrap force and/or for film break reduction |
US10421570B2 (en) | 2014-05-07 | 2019-09-24 | Signode Industrial Group Llc | Method for packaging of an article of merchandise |
US10926906B2 (en) | 2014-10-07 | 2021-02-23 | Lantech.Com, Llc | Load stability-based wrapping |
US10053253B2 (en) | 2014-10-07 | 2018-08-21 | Lantech.Com, Llc | Graphical depiction of wrap profile for load wrapping apparatus |
US10435191B2 (en) | 2014-10-07 | 2019-10-08 | Lantech.Com, Llc | Projecting containment force for load wrapping apparatus |
US11097865B2 (en) | 2015-02-02 | 2021-08-24 | Signode Industrial Group Llc | Packaging apparatus and method for operating same |
US11649084B2 (en) | 2015-02-02 | 2023-05-16 | Signode Industrial Group Llc | Packaging apparatus and method for operating same |
US10273031B2 (en) | 2015-02-02 | 2019-04-30 | Signode Industrial Group Llc | Packaging apparatus and method for operating same |
US11505343B2 (en) | 2015-09-25 | 2022-11-22 | Lantech.Com, Llc | Stretch wrapping machine with automated determination of load stability by subjecting a load to a disturbance |
US10934034B2 (en) | 2015-09-25 | 2021-03-02 | Lantech.Com, Llc | Stretch wrapping machine with automated determination of load stability by subjecting a load to a disturbance |
US11034470B2 (en) | 2015-09-25 | 2021-06-15 | Lantech.Com, Llc | Stretch wrapping machine with automatic load profiling |
US11731793B2 (en) | 2015-09-25 | 2023-08-22 | Lantech.Com, Llc | Stretch wrapping machine with automatic load profiling |
US11667416B2 (en) | 2017-09-22 | 2023-06-06 | Lantech.Com, Llc | Load wrapping apparatus wrap profiles with controlled wrap cycle interruptions |
US11208225B2 (en) | 2018-08-06 | 2021-12-28 | Lantech.Com, Llc | Stretch wrapping machine with curve fit control of dispense rate |
US11479378B2 (en) | 2019-09-09 | 2022-10-25 | Lantech.Com, Llc | Stretch wrapping machine with dispense rate control based on sensed rate of dispensed packaging material and predicted load geometry |
US11518557B2 (en) | 2019-09-19 | 2022-12-06 | Lantech.Com, Llc | Packaging material grading and/or factory profiles |
US12103719B2 (en) | 2019-09-19 | 2024-10-01 | Lantech.Com, Llc | Packaging material grading and/or factory profiles |
Also Published As
Publication number | Publication date |
---|---|
ES2105592T3 (en) | 1997-10-16 |
EP0653352B1 (en) | 1997-08-13 |
SE502041C2 (en) | 1995-07-24 |
SE9303804D0 (en) | 1993-11-17 |
SE9303804L (en) | 1995-05-18 |
DE69404948D1 (en) | 1997-09-18 |
DK0653352T3 (en) | 1998-03-30 |
DE69404948T2 (en) | 1998-03-26 |
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