CN113213233A - Hand-held film winding device with automatic tension adjustment function - Google Patents
Hand-held film winding device with automatic tension adjustment function Download PDFInfo
- Publication number
- CN113213233A CN113213233A CN202110584377.6A CN202110584377A CN113213233A CN 113213233 A CN113213233 A CN 113213233A CN 202110584377 A CN202110584377 A CN 202110584377A CN 113213233 A CN113213233 A CN 113213233A
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- CN
- China
- Prior art keywords
- hand
- held
- elastic part
- rod
- tension
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/26—Registering, tensioning, smoothing or guiding webs longitudinally by transverse stationary or adjustable bars or rollers
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H16/00—Unwinding, paying-out webs
- B65H16/02—Supporting web roll
- B65H16/06—Supporting web roll both-ends type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/19—Specific article or web
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Unwinding Webs (AREA)
Abstract
In the invention, the handheld rod is connected with a tension roller with a rotation axis parallel to the rotation axis of the rotary table in a sliding manner, an elastic part A for keeping the tension roller away from the rotary table is arranged between the tension roller and the handheld rod, an elastic part B for keeping the rotary table extruding the core is arranged between the rotary table and the handheld rod, the tension roller is connected with an adjusting sheet positioned between the elastic part B and the handheld rod, one surface of the adjusting sheet facing the elastic part B inclines from the elastic part B to the elastic part B towards the tension roller, when the tension roller is used, a packaging film passes through the tension roller, when the tension of the film is larger, the tension roller drives the adjusting sheet to move the elastic part A towards the rotary table to reduce the elasticity of the elastic part A to the rotary table, so that the pressure of the rotary table to the core is reduced, and the friction force required by the rotation of the rotary table is reduced.
Description
Technical Field
The invention relates to the field of packaging, in particular to a handheld film wrapping device capable of automatically adjusting tension.
Background
Referring to fig. 1 and 2, chinese patent application No. 201610375793.4 discloses a dispenser (hand-held film winder) including a first connector portion 1 and a second connector portion 2 spaced apart from the first connector portion 1. The roll of packaging film comprises a core 3, the core 3 having a packaging film wound thereon, and the roll of packaging film is configured to extend between a first connector portion 1 (carousel) and a second connector portion 2 (carousel) of the dispenser. The first and second connector portions 1 and 2 are rotatable to allow rotation of the packaging film. The dispenser includes a body (hand-held wand) at least a portion of which is an arcuate path. The body has a first end 4 and a second end 5. The first connector part 1 is arranged close to the first end 4 of the body. The first end portion 4 is positioned below the second end portion 5 in normal working use and when in a normal storage position. The first connector part 1 is thus located at the bottom of the dispenser.
The tension controller 10 terminates the upper end portion of the substantially cylindrical portion of the second connector portion 2. The tension control device 10 adjusts the speed and degree of rotation of the web of film so that a desired level of tension is applied to the film to cause the film to be stretched. For example, to ensure that the contents of the tray are tightly wrapped, the tension is increased to minimize or even prevent rotation of the film roll. The tension control comprises a rotatable knob 11, the knob 11 being mechanically connected to a bolt 12 having a single-pass thread and a clamping mechanism located on the bolt 12.
When the knob 11 is turned, the distal end of the bolt 12 provides pressure on the top of the film roll through the second or upper connector portion 2. This eventually brings the end of the thread into contact with the top end of the film roll. This pressure is transmitted down to the first or bottom connector part 1. This effectively compresses the roll between the first and second connector portions.
The rotation of the core 3 (paper tube) can be made to rotate only by overcoming the torque of the rotational friction of the first connector portion 1 (first rotary disk) and the second connector portion 2 (second rotary disk), and as the winding work proceeds, the thickness of the film becomes smaller, that is, the film becomes thinner and the greater the tension of the film, the first connector portion 1 (first rotary disk) and the second connector portion 2 (second rotary disk) can be made to rotate, which results in easy film breakage.
In the prior art, a user needs to adjust the used torque force by feeling. This results in a situation where the efficiency is low, the use is not good, and the film is easily broken.
Disclosure of Invention
The invention aims to provide a handheld film winding device with automatic tension adjustment, which can reduce the pressure of a rotary disc on a core along with the thinning of a film roll.
In order to achieve the aim, the invention provides a handheld film winding device with automatically-adjusted tension, which is used for placing a packaging film roll, the packaging film roll comprises a core, the core is provided with a packaging film wound on the core, the hand-held film winder comprises a U-shaped hand-held rod and two rotating discs matched with the core, the rotary table is rotationally connected with the handheld rod through a rotating shaft, the handheld rod is connected with a tension roller with a rotating axis parallel to the rotating axis of the rotary table in a sliding way, an elastic part A for keeping the tension roller away from the rotary table is arranged between the tension roller and the handheld rod, an elastic part B for keeping the rotary table extruding the core is arranged between the rotary table and the handheld rod, the tension roller is connected with an adjusting sheet positioned between the elastic part B and the handheld rod, and one surface of the adjusting sheet facing the elastic part B inclines from the elastic part B to the tension roller back to the elastic part B.
In one embodiment of the invention, two ends of the tension roller are rotatably connected with sliding blocks, a rod-shaped sliding rail which is slidably connected with the sliding blocks is fixed on the inner side of the handheld rod, and the adjusting sheet is fixedly connected with one adjacent sliding block.
In one embodiment of the invention, the slide rail is a half-tooth bolt or a screw rod, the hand-held rod is fixed with brackets positioned at two ends of the slide rail, and the slide rail penetrates through the brackets and is fixedly connected with the brackets through a connecting nut.
In an embodiment of the present invention, the elastic portion a and/or the elastic portion B is a compression spring, the elastic portion B is sleeved outside the slide rail, the elastic portion B is located between the slider and the bracket close to the turntable, and the slide rail is in threaded connection with a compression amount adjusting portion B' located between the elastic portion B and the bracket close to the turntable and used for adjusting a compression amount of the elastic portion B.
In one embodiment of the invention, a supporting part is arranged between one end of the adjusting sheet, which faces away from the sliding block, and the handheld rod.
In one embodiment of the present invention, a compression amount adjusting portion a 'for adjusting a compression amount of the elastic portion a is threadedly connected to the first rotary plate, and a first rotary pad is provided between the compression amount adjusting portion a' and the elastic portion a, and a second rotary pad is provided between the adjusting piece and the elastic portion a.
In one embodiment of the invention, the section of one end of the rotating shaft, which faces away from the handheld rod, is enlarged to form a supporting head for limiting the axial position of the first rotating disc, and one end of the rotating shaft, which faces away from the first rotating disc, penetrates through the handheld rod and is in threaded connection with a position adjusting nut for adjusting the distance between the first rotating disc and the handheld rod.
In one embodiment of the invention, the handheld rod comprises a handheld part and connecting parts arranged at two ends of the handheld part, and the tension roller is arranged at one side of the turntable close to the handheld part.
In one embodiment of the invention, the hand-held rod is formed by bending a rectangular tube.
In one embodiment of the invention, the hand-held rod is made of aluminum alloy, the second rotating pad comprises a tube body and a flange which is arranged on the edge of the tube body and is abutted against the adjusting sheet, and the tension roller comprises a tension shaft, a sleeve and a bearing which is arranged between the sleeve and the tension shaft.
In the invention, the handheld rod is connected with a tension roller with a rotation axis parallel to the rotation axis of the rotary table in a sliding manner, an elastic part A for keeping the tension roller away from the rotary table is arranged between the tension roller and the handheld rod, an elastic part B for keeping the rotary table extruding the core is arranged between the rotary table and the handheld rod, the tension roller is connected with an adjusting sheet positioned between the elastic part B and the handheld rod, one surface of the adjusting sheet facing the elastic part B inclines from the elastic part B to the elastic part B towards the tension roller, when the tension roller is used, a packaging film passes through the tension roller, when the tension of the film is larger, the tension roller drives the adjusting sheet to move the elastic part A towards the rotary table to reduce the elasticity of the elastic part A to the rotary table, so that the pressure of the rotary table to the core is reduced, and the friction force required by the rotation of the rotary table is reduced.
Drawings
Fig. 1 is a schematic structural view of a conventional dispenser.
Fig. 2 is a cross-sectional view of the tension regulator of fig. 1.
Fig. 3 is a schematic structural diagram of a handheld winder with automatic tension adjustment according to a first embodiment of the present invention.
Fig. 4 is an exploded view of the hand-held winder of fig. 3.
Fig. 5 is a partial enlarged view of the hand-held winder of fig. 3 at E.
Fig. 6 is a cross-sectional view at the turntable of the hand-held winder of fig. 3.
Fig. 7 is a partial enlarged view of the hand-held winder of fig. 6 at F.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 3 to 6, the tension-automatically-adjusting hand-held film winder of the first embodiment of the present invention is used for placing a roll 20 of a packaging film 22, the roll 20 of the packaging film 22 includes a core 21, the core 21 has the packaging film 22 wound thereon, and the core 21 is a paper tube or a plastic tube.
The handheld film wrapping device comprises a U-shaped handheld rod 10 and two rotating discs 11 matched with a core 21, the rotating discs 11 are rotatably connected with the handheld rod 10 through rotating shafts 12, the handheld rod 10 is connected with a tension roller 30 of which the rotating axis is parallel to the rotating axis of the rotating discs 11 in a sliding mode, an elastic part A used for keeping the tension roller 30 far away from the rotating discs 11 is arranged between the tension roller 30 and the handheld rod 10, an elastic part B used for keeping the rotating discs 11 to extrude the core 21 is arranged between the rotating discs 11 and the handheld rod 10, the tension roller 30 is connected with an adjusting sheet 13 located between the elastic part B and the handheld rod 10, and one surface, facing the elastic part B, of the adjusting sheet 13 inclines towards the elastic part B from the elastic part B to the elastic part B towards the tension roller 30.
The two ends of the tension roller 30 are rotatably connected with sliding blocks 40, the inner side of the handheld rod 10 is fixed with a rod-shaped sliding rail 41 which is in sliding connection with the sliding blocks 40, and the adjusting sheet 13 is connected and fixed with one adjacent sliding block 40.
The slide rail 41 is a half-thread bolt or a screw rod, the hand-held rod 10 is fixed with a bracket 42 positioned at two ends of the slide rail 41, and the slide rail 41 passes through the bracket 42 and is connected and fixed with the bracket 42 through a connecting nut 43.
The elastic part A and/or the elastic part B are compression springs, the elastic part B is sleeved outside the sliding rail 41 and is positioned between the sliding block 40 and the bracket 42 close to the turntable 11, and the sliding rail 41 is in threaded connection with a compression amount adjusting part B' which is positioned between the elastic part B and the bracket 42 close to the turntable 11 and is used for adjusting the compression amount of the elastic part B.
The supporting part 131 is arranged between one end of the adjusting sheet 13 back to the slide block 40 and the hand-held rod 10. The first rotary disk 11 is in threaded connection with a compression amount adjusting part A 'for adjusting the compression amount of the elastic part A, a first rotating pad 14 is arranged between the compression amount adjusting part A' and the elastic part A, and a second rotating pad 15 is arranged between the adjusting sheet 13 and the elastic part A. The section of one end of the rotating shaft 12, which is back to the handheld rod 10, is enlarged to form a supporting head for limiting the axial position of the first rotating disc 11, and one end of the rotating shaft 12, which is back to the first rotating disc 11, penetrates through the handheld rod 10 and is in threaded connection with a position adjusting nut 16 for adjusting the distance between the first rotating disc 11 and the handheld rod 10.
The hand-held lever 10 includes a hand-held portion 101 and connecting portions 102 at both ends of the hand-held portion 101, and the tension roller 30 is located on a side of the turntable 11 close to the hand-held portion 101. The hand-held lever 10 is formed by bending a rectangular tube.
The hand lever 10 is made of aluminum alloy, the second rotating pad 15 includes a tube 151 and a flange 152 at the edge of the tube 151 against the adjusting blade 13, and the tension roller 30 includes a tension shaft 31, a sleeve 32, and a bearing 33 between the sleeve 32 and the tension shaft 31.
In the invention, the hand-held rod 10 is connected with a tension roller 30 with a rotation axis parallel to the rotation axis of the rotary table 11 in a sliding manner, an elastic part A for keeping the tension roller 30 away from the rotary table 11 is arranged between the tension roller 30 and the hand-held rod 10, an elastic part B for keeping the rotary table 11 to squeeze the core 21 is arranged between the rotary table 11 and the hand-held rod 10, the tension roller 30 is connected with an adjusting sheet 13 positioned between the elastic part B and the hand-held rod 10, one surface of the adjusting sheet 13 facing the elastic part B inclines from the elastic part B to the elastic part B towards the tension roller 30, when the packaging film 22 passes through the tension roller 30, when the tension of the film is larger, the tension roller 30 drives the adjusting sheet 13 to move the elastic part A towards the rotary table 11 to reduce the elasticity of the rotary table 11, so as to reduce the pressure of the rotary table 11 to the core 21, and reduce the friction force required by the rotation of the rotary table 11. Once the tension is particularly large, the supporting portion 131 is pressed to the end surface of the connecting portion 102, and the adjusting piece is preferably made of metal having elasticity.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A hand-held film winder with automatic tension adjustment is used for placing a packaging film roll, the packaging film roll comprises a core, the core is provided with a packaging film wound thereon, the hand-held film winder comprises a U-shaped hand-held rod and two turntables matched with the core, the turntables are rotationally connected with the hand-held rod through a rotating shaft, it is characterized in that the hand-held rod is connected with a tension roller with a rotation axis parallel to the rotation axis of the turntable in a sliding way, an elastic part A for keeping the tension roller away from the rotary table is arranged between the tension roller and the handheld rod, an elastic part B for keeping the rotary table extruding the core is arranged between the rotary table and the handheld rod, the tension roller is connected with an adjusting sheet positioned between the elastic part B and the handheld rod, and one surface of the adjusting sheet facing the elastic part B inclines from the elastic part B to the tension roller back to the elastic part B.
2. The handheld film winder with automatic tension adjustment as claimed in claim 1, wherein two ends of the tension roller are rotatably connected with sliders, a rod-shaped slide rail slidably connected with the sliders is fixed on the inner side of the handheld rod, and the adjusting sheet is fixedly connected with one adjacent slider.
3. The handheld film winder with the automatic tension adjustment function according to claim 2, wherein the slide rail is a half-thread bolt or a screw rod, the hand-held rod is fixed with brackets at two ends of the slide rail, and the slide rail penetrates through the brackets and is connected and fixed with the brackets through a connecting nut.
4. The handheld film winder with the automatic tension adjustment function according to claim 3, wherein the elastic part A and/or the elastic part B is a compression spring, the elastic part B is sleeved outside the sliding rail and is located between the sliding block and a bracket close to the rotating disc, and the sliding rail is in threaded connection with a compression amount adjustment part B' located between the elastic part B and the bracket close to the rotating disc and used for adjusting the compression amount of the elastic part B.
5. The hand-held film winder with automatic tension adjustment according to claim 4, wherein a support portion is provided between one end of the adjusting piece facing away from the slide block and the hand-held rod.
6. The hand-held film winder for automatically adjusting tension according to claim 5, wherein a compression amount adjusting portion A 'for adjusting the compression amount of the elastic portion A is threadedly connected to the first rotary plate, a first rotary pad is provided between the compression amount adjusting portion A' and the elastic portion A, and a second rotary pad is provided between the adjusting piece and the elastic portion A.
7. The handheld film winder with automatic tension adjustment according to claim 6, wherein the section of one end of the rotating shaft, which faces away from the handheld rod, is enlarged to form a supporting head for limiting the axial position of the first rotating disc, one end of the rotating shaft, which faces away from the first rotating disc, penetrates through the handheld rod, and is in threaded connection with a position adjusting nut for adjusting the distance between the first rotating disc and the handheld rod.
8. The tension dancer of claim 7, wherein the hand-held lever comprises a hand-held portion and connecting portions at both ends of the hand-held portion, and the tension roller is located on a side of the turntable adjacent to the hand-held portion.
9. The self-tensioning, hand-held film winder of claim 8, wherein the hand-held rod is a rectangular tube bent.
10. The tension dancer hand-held film winder of claim 9, wherein the hand-held lever is made of an aluminum alloy, the second rotating pad comprises a tube and a flange at the edge of the tube against the regulating blade, and the tension roller comprises a tension shaft, a sleeve, and a bearing between the sleeve and the tension shaft.
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CN202110584377.6A CN113213233B (en) | 2021-05-27 | 2021-05-27 | Hand-held film winding device with automatic tension adjustment function |
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CN202110584377.6A CN113213233B (en) | 2021-05-27 | 2021-05-27 | Hand-held film winding device with automatic tension adjustment function |
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CN113213233A true CN113213233A (en) | 2021-08-06 |
CN113213233B CN113213233B (en) | 2022-10-11 |
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Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES359588A1 (en) * | 1966-09-20 | 1970-06-01 | Creil Const Mec | Tensioning device for use in winding multiple strips upon a common mandrel |
CN102862704A (en) * | 2011-07-08 | 2013-01-09 | 博世包装技术(新加坡)私人有限公司 | Packaging machine and tensioning and braking device thereof |
CN102887387A (en) * | 2012-05-22 | 2013-01-23 | 武汉金运激光股份有限公司 | Material roller with tension control device and laser cutting machine with material roller |
CN104229524A (en) * | 2014-09-04 | 2014-12-24 | 瑞安市至高机械有限公司 | Stretched membrane feeding tension control device |
CN205034847U (en) * | 2015-10-20 | 2016-02-17 | 武汉市海泰伟创科技有限公司 | Automatic tension film of lever is rolled up mounting bracket and is contained its packagine machine |
CN105417255A (en) * | 2015-11-27 | 2016-03-23 | 如皋市包装食品机械有限公司 | Chocolate packing paper tape tension control device |
CN106185401A (en) * | 2015-06-01 | 2016-12-07 | 格利普系统有限公司 | Allotter |
CN212581129U (en) * | 2020-04-20 | 2021-02-23 | 广州旭成电子科技有限公司 | Damping tube of printer |
CN213084841U (en) * | 2020-07-08 | 2021-04-30 | 苏州杰欧精工科技有限公司 | Novel gauze mask machine yardage roll drop feed mechanism |
-
2021
- 2021-05-27 CN CN202110584377.6A patent/CN113213233B/en active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES359588A1 (en) * | 1966-09-20 | 1970-06-01 | Creil Const Mec | Tensioning device for use in winding multiple strips upon a common mandrel |
CN102862704A (en) * | 2011-07-08 | 2013-01-09 | 博世包装技术(新加坡)私人有限公司 | Packaging machine and tensioning and braking device thereof |
CN102887387A (en) * | 2012-05-22 | 2013-01-23 | 武汉金运激光股份有限公司 | Material roller with tension control device and laser cutting machine with material roller |
CN104229524A (en) * | 2014-09-04 | 2014-12-24 | 瑞安市至高机械有限公司 | Stretched membrane feeding tension control device |
CN106185401A (en) * | 2015-06-01 | 2016-12-07 | 格利普系统有限公司 | Allotter |
CN205034847U (en) * | 2015-10-20 | 2016-02-17 | 武汉市海泰伟创科技有限公司 | Automatic tension film of lever is rolled up mounting bracket and is contained its packagine machine |
CN105417255A (en) * | 2015-11-27 | 2016-03-23 | 如皋市包装食品机械有限公司 | Chocolate packing paper tape tension control device |
CN212581129U (en) * | 2020-04-20 | 2021-02-23 | 广州旭成电子科技有限公司 | Damping tube of printer |
CN213084841U (en) * | 2020-07-08 | 2021-04-30 | 苏州杰欧精工科技有限公司 | Novel gauze mask machine yardage roll drop feed mechanism |
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