CN114347122B - Medical film cutting machine for wide-width thin films and use method thereof - Google Patents
Medical film cutting machine for wide-width thin films and use method thereof Download PDFInfo
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- CN114347122B CN114347122B CN202111609873.9A CN202111609873A CN114347122B CN 114347122 B CN114347122 B CN 114347122B CN 202111609873 A CN202111609873 A CN 202111609873A CN 114347122 B CN114347122 B CN 114347122B
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- medical film
- air
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- conveying belt
- conveying
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- 238000005520 cutting process Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000010408 film Substances 0.000 title claims description 51
- 239000010409 thin film Substances 0.000 title claims description 6
- 238000007667 floating Methods 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 13
- 238000004513 sizing Methods 0.000 claims description 8
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 3
- 238000009736 wetting Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 abstract 1
- 230000007306 turnover Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000005188 flotation Methods 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 5
- 229920005549 butyl rubber Polymers 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000013072 incoming material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
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- Advancing Webs (AREA)
- Materials For Medical Uses (AREA)
Abstract
The invention discloses a medical film cutting machine for wide sheets and a use method thereof, wherein the medical film cutting machine comprises a frame, and a conveying device is connected to the upper surface of the frame; the conveying device comprises a first conveying belt and a second conveying belt at two ends, and a split air floatation device is connected in a gap between the first conveying belt and the second conveying belt; a knife rest is arranged between the air floatation devices and connected with the frame, and a knife is connected in the knife rest and matched with the medical film on the upper surface of the conveying device. The device has solved current cut-parts machine when being suitable for the medical film of broad width, thereby because the viscosity of film itself increases and leads to glues sword, drill roller and film promotion easily arching's problem easily, has can avoid the film adhesion, need not the manual intervention and realizes smooth and easy business turn over of film, factor of safety is high, characteristics that work efficiency is high.
Description
Technical Field
The invention belongs to the field of production of medical butyl rubber plugs, and particularly relates to a wide-width sheet medical film cutting machine and a use method thereof.
Background
At present, a preformed butyl rubber sheet which is widely used by domestic medical butyl rubber plug manufacturers for vulcanization molding is a narrow sheet with the width smaller than 500 mm; in actual production, in order to improve the discharging quantity of one operation and further improve the working efficiency, in the prior art, a vulcanizing mold with the width of 2 times of film is used, and 2 films are vulcanized by one-time vulcanizing machine, so that the preformed film discharging needs to be carried out for 2 times of vulcanizing machine times, and an operator needs to load the film twice in production to finish one-time vulcanizing operation; in order to improve the production efficiency, a wide film production process is required, so that the preforming operation efficiency can be improved by about 40%, and the vulcanizing operation efficiency can be improved by about 15%; because the formula of the medical butyl rubber plug is more, the specification and the model are more, the traditional cutting machine has no problem when cutting the traditional narrow rubber plug, but when producing the wide-width thin sheet with special formula, because the contact area between the rubber plug and the conveying surface is increased, and because the rubber plug is thin, soft and high in viscosity, in actual cutting, the problems of easy arching and the like caused by the pushing of the sticky cutter, the drilling roller and the rubber plug are serious, after cutting, one cutting end of the rubber plug is often adhered to a cutter groove of a movable cutter or adhered to the surface of a cutter frame due to the pressure of cutting by the cutter, when the movable cutter is lifted up, or the movable cutter is easily brought up due to the adhesion indicated by the cutter frame, the arching problem occurs when the next feeding is caused, the problems often need to be corrected by continuous manual intervention, the potential safety hazard is extremely large, the production efficiency is greatly reduced, and normal production is severely restricted. Therefore, there is a need to design a medical film cutting machine suitable for wide-width thin films and a use method thereof to solve the above problems.
Disclosure of Invention
The invention aims to solve the technical problems of easy sticking of a cutter, a drill roller and easy arching of film pushing caused by the viscosity increase of the film when the conventional film cutting machine is suitable for wide medical films, and has the characteristics of avoiding film adhesion, realizing smooth feeding and discharging of the film without manual intervention, along with high safety coefficient and high working efficiency.
In order to achieve the technical effects, the technical scheme adopted by the invention is as follows: a medical film cutting machine for wide-width thin films comprises a frame, wherein the upper surface of the frame is connected with a conveying device; the conveying device comprises a first conveying belt and a second conveying belt at two ends, and a split air floatation device is connected in a gap between the first conveying belt and the second conveying belt; a knife rest is arranged between the air floatation devices and connected with the frame, and a knife is connected in the knife rest and matched with the medical film on the upper surface of the conveying device.
Preferably, the conveying device is connected with a servo driving motor, and the servo driving motor is electrically connected with the PLC.
Preferably, the inner wall of the tool rest is connected with a tool rest guide rail which is in sliding connection with the movable tool through a linear bearing; the lower part of the tool rest is connected with a fixed tool; the movable knife is connected with a cutter driving mechanism.
Further, the fixed knife at the lower part of the knife rest is the same as the first conveyor belt and the first air floating plate in height; the cutter driving mechanism comprises a crank connecting rod mechanism below the frame, the crank connecting rod mechanism comprises a cam hinged with the support, the cam is connected with the telescopic end of the air cylinder, and the other end of the air cylinder is hinged with the frame; the cam surface is connected with a connecting rod system with a plurality of hinged points for hinging, and the connecting rod system is connected with the movable knife to drive the movable knife to slide up and down along the knife rest guide rail.
Preferably, the air floating device comprises a first air floating plate connected with the end part of the first conveying belt and a second air floating plate connected with the end part of the second conveying belt.
Preferably, the first air floating plate is higher than the second air floating plate, and the first conveyor belt is also higher than the second conveyor belt.
Preferably, the air floatation device is a polytetrafluoroethylene plate, a plurality of air holes are formed in the surface of the air floatation device, and the bottom ends of the air holes are connected with the air pump through independent air pipes respectively.
Further, the air holes on the surface of the air floatation device can independently control the air quantity of each air hole through the air pump and the valve, and the scheme with highest efficiency and lowest energy consumption is selected by adjusting different air quantity combination schemes.
Preferably, a press roller is arranged on the surface of the first conveyor belt and is rotatably connected with the frame.
Preferably, a buffer device is connected to the side surface of the feeding end of the frame, and the buffer device is electrically connected with the PLC.
Further, the buffer means is preferably a photoelectric switch.
Preferably, the application method of the wide-sheet medical film cutting machine comprises the following steps:
S1, placing a wide medical film to be cut on the surface of a conveying device, and feeding along with the conveying device; the PLC is used for controlling the servo driving motor to start and stop for sizing, and the sizing precision is +/-1 mm;
S2, cutting the wide medical film at the position of the knife rest, ventilating the air floatation device, and blowing the wide medical film to a floating state by utilizing the self-wetting property of the polytetrafluoroethylene plate and the buoyancy generated by pressure air, and simultaneously cutting the wide medical film by a movable knife;
S3, after cutting, the PLC drives the first conveyor belt to back up by 1 cm-3 cm by controlling the servo driving motor, and the wide medical film clamped in the knife slot is pulled out;
and S4, continuously feeding the feeding end, and controlling the conveying device to perform sizing feeding by the PLC when the buffer device is shielded by the wide medical film, so that the next cutting is realized.
The beneficial effects of the invention are as follows:
1, by improving the traditional sheet cutting machine, the air floatation device is additionally arranged between the two sections of conveying belt mechanisms and the cutter mechanism, and air holes on the surface of the air floatation device are independently supplied, so that the wide medical film is in a micro-floating state when being cut, and the problem that the cut wide medical film is adhered to a cutter groove or a cutter rest due to soft texture and high viscosity, so that subsequent feeding is blocked and arching is caused can be effectively avoided;
2, the conveying belts at the front end and the rear end and the air flotation plates correspondingly connected are provided with the height difference, so that one end of the incoming material is slightly higher, one end of the outgoing material is slightly lower, arching caused by blocking of the air flotation plates or the conveying belts at the rear end during feeding can be effectively avoided, a certain gap exists between the wide medical film and the air flotation plates at the rear end due to the height difference, and the effect of preventing adhesion is further improved.
3, Overall structure is simple, and transformation cost is lower, can carry out quick assembly and popularization on the basis of current equipment, can be effectively be applicable to wide, thin slice, soft and the great medicinal butyl film's of self-adhesion continuous stable production, need not the manual work and intervene the cut-parts process, and factor of safety has obtained huge promotion, and production efficiency has obtained very big improvement.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of an air floatation device in the present invention;
FIG. 3 is a schematic representation of a tool holder in accordance with an embodiment of the invention;
The reference numerals in the drawings are: the device comprises a frame 1, a first conveying belt 2, a second conveying belt 22, a cutter driving mechanism 3, a crank connecting rod mechanism 31, a cam 32, an air cylinder 33, a servo driving system 4, an air floating device 5, a first air floating plate 51, a second air floating plate 52, an air hole 53, a cutter rest 6, a guide rail 61, a linear bearing 62, a movable cutter 63, a fixed cutter 64, a press roller 7 and a buffer device 8.
Detailed Description
Example 1:
As shown in fig. 1-3, a medical film cutting machine for wide thin films comprises a frame 1, wherein the upper surface of the frame 1 is connected with a conveying device; the conveying device comprises a first conveying belt 2 and a second conveying belt 22 at two ends, and a split air floatation device 5 is connected in a gap between the first conveying belt 2 and the second conveying belt 22; a knife rest 6 is arranged between the air floatation devices 5 and connected with the frame 1, and a cutter is connected in the knife rest 6 to cooperate with the medical film on the upper surface of the conveying device.
Preferably, the conveying device is connected with a servo driving motor, and the servo driving motor is electrically connected with the PLC.
Preferably, the inner wall of the tool rest 6 is connected with a tool rest 6 guide rail 61, and the tool rest 6 guide rail 61 is in sliding connection with a movable tool 63 through a linear bearing 62; the lower part of the tool rest 6 is connected with a fixed tool 64; the movable blade 63 is connected to the cutter driving mechanism 3.
Further, the fixed knife 64 at the lower part of the knife rest 6 is the same as the first conveyor belt 2 and the first air floating plate 51 in position; the cutter driving mechanism 3 comprises a crank link mechanism 31 below the frame 1, the crank link mechanism 31 comprises a cam 32 hinged with the support, the cam 32 is connected with the telescopic end of a cylinder 33, and the other end of the cylinder 33 is hinged with the frame 1; the surface of the cam 32 is connected with a connecting rod system with a plurality of hinged points for hinging, and the connecting rod system is connected with the movable knife 63 to drive the movable knife 63 to slide up and down along the guide rail 61 of the knife rest 6.
Preferably, the air flotation device 5 comprises a first air flotation plate 51 connected to the end of the first conveyor belt 2 and a second air flotation plate 52 connected to the end of the second conveyor belt 22.
Preferably, the first air bearing plate 51 is located at a higher level than the second air bearing plate 52, and the first conveyor belt 2 is also located at a higher level than the second conveyor belt 22.
Preferably, the air floatation device 5 is a polytetrafluoroethylene plate, the surface of the air floatation device 5 is provided with a plurality of air holes 53, and the bottom ends of the air holes 53 are respectively connected with the air pump through independent air pipes.
Further, the air holes on the surface of the air floatation device 5 can independently control the air quantity of each air hole through an air pump and a valve, and the scheme with the highest efficiency and the lowest energy consumption is selected by adjusting different air quantity combination schemes.
Preferably, the upper surface of the first conveyor belt 2 is provided with a press roller 7 in rotational connection with the frame 1.
Preferably, a buffer device 8 is connected to the side surface of the feeding end of the frame 1, and the buffer device 8 is electrically connected to the PLC controller.
Further, the buffer means 8 is preferably a photoelectric switch.
Example 2:
The application method of the medical film cutting machine for the wide-width thin sheet comprises the following steps:
S1, placing a wide medical film to be cut on the surface of a conveying device, and feeding along with the conveying device; the PLC is used for controlling the servo driving motor to start and stop for sizing, and the sizing precision is +/-1 mm;
S2, cutting the wide medical film at the position where the wide medical film reaches the knife rest 6, ventilating the air floatation device 5, blowing the wide medical film to a floating state by utilizing the self-wetting property of the polytetrafluoroethylene plate and the buoyancy generated by pressure air, and simultaneously cutting the wide medical film by the movable knife 63;
S3, after cutting, the PLC drives the first conveyor belt 2 to back up by 1 cm-3 cm by controlling the servo driving motor, and the wide medical film clamped in the knife slot is pulled out;
S4, the feeding end continues to feed, and when the buffer device 8 is shielded by the wide medical film, the PLC controls the conveying device to carry out sizing feeding, so that the next cutting is realized.
The above embodiments are merely preferred embodiments of the present application, and should not be construed as limiting the present application, and the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without collision. The protection scope of the present application is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this application are also within the scope of the application.
Claims (5)
1. A medical film cutting machine for wide-width thin films comprises a frame (1), wherein the upper surface of the frame (1) is connected with a conveying device; the method is characterized in that: the conveying device comprises a first conveying belt (21) and a second conveying belt (22) at two ends, and a split air floatation device (5) is connected in a gap between the first conveying belt (21) and the second conveying belt (22); a knife rest (6) is arranged between the air floatation devices (5) and connected with the frame (1), and a cutter is connected in the knife rest (6) to be matched with the medical film on the upper surface of the conveying device; the air floatation device (5) comprises a first air floatation plate (51) connected with the end part of the first conveying belt (21) and a second air floatation plate (52) connected with the end part of the second conveying belt (22); the position height of the first air floating plate (51) is higher than that of the second air floating plate (52); the air floatation device (5) is a polytetrafluoroethylene plate, a plurality of air holes (53) are formed in the surface of the air floatation device (5), and the bottom ends of the air holes (53) are respectively connected with the air pump through independent air pipes; the side surface of the feeding end of the frame (1) is connected with a buffer device (8), the buffer device (8) is a photoelectric switch, and the buffer device (8) is electrically connected with the PLC.
2. The broad, thin, medical film cutting machine of claim 1, wherein: the conveying device is connected with a servo driving motor (4), and the servo driving motor is electrically connected with the PLC.
3. The broad, thin, medical film cutting machine of claim 1, wherein: the inner wall of the tool rest (6) is connected with a tool rest guide rail (61), and the tool rest guide rail is in sliding connection with a movable tool (63) through a linear bearing (62); the lower part of the tool rest (6) is connected with a fixed tool (64); the movable knife is connected with a cutter driving mechanism.
4. The broad, thin, medical film cutting machine of claim 1, wherein: the upper surface of the first conveying belt (21) is provided with a press roller (7) which is rotationally connected with the frame (1).
5. The use method of the wide-sheet medical film cutting machine according to any one of claims 1 to 4, wherein the use method is characterized in that: the method comprises the following steps:
S1, placing a wide medical film to be cut on the surface of a conveying device, and feeding along with the conveying device; the PLC is used for controlling the start and stop of the servo driving motor (4) to carry out sizing;
s2, cutting the wide medical film at the position where the wide medical film reaches the knife rest (6), ventilating the air floatation device (5), blowing the wide medical film to a floating state by utilizing the self-wetting property of the polytetrafluoroethylene plate and the buoyancy generated by pressure air, and simultaneously cutting the wide medical film by moving the knife;
S3, after cutting, the PLC controller drives the first conveying belt (21) to back up for a fixed distance by controlling the servo driving motor (4) to pull out the wide medical film clamped in the knife slot;
And S4, continuously feeding the feeding end, and controlling the conveying device to perform sizing feeding by the PLC when the buffer device (8) is shielded by the wide medical film, so that the next cutting is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111609873.9A CN114347122B (en) | 2021-12-27 | 2021-12-27 | Medical film cutting machine for wide-width thin films and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111609873.9A CN114347122B (en) | 2021-12-27 | 2021-12-27 | Medical film cutting machine for wide-width thin films and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114347122A CN114347122A (en) | 2022-04-15 |
| CN114347122B true CN114347122B (en) | 2024-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111609873.9A Active CN114347122B (en) | 2021-12-27 | 2021-12-27 | Medical film cutting machine for wide-width thin films and use method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5934534A (en) * | 1996-03-11 | 1999-08-10 | Cmd Corporation | Separating a web at a line of weakness |
| CN201050019Y (en) * | 2007-05-14 | 2008-04-23 | 茅子超 | Banding type cutting machine |
| CN206264010U (en) * | 2016-12-14 | 2017-06-20 | 湖北华润科技有限公司 | A kind of rubber fixed length automatic cutting machine |
| JP2018134704A (en) * | 2017-02-21 | 2018-08-30 | 株式会社栗本鐵工所 | Cutting and separating device and method for manufacturing fiber-reinforced resin molded body |
| CN109881463A (en) * | 2019-02-23 | 2019-06-14 | 北京君杰一鸣企业服装发展有限公司 | A kind of band knife cutter |
| CN112064321A (en) * | 2020-09-25 | 2020-12-11 | 泉州尚德服饰有限公司 | Electric control pneumatic mop passing bed device for cutting operation |
| CN214055568U (en) * | 2020-11-25 | 2021-08-27 | 东莞市高益装饰材料有限公司 | Shearing conveying device not prone to jamming |
| CN216831063U (en) * | 2021-12-27 | 2022-06-28 | 湖北华强科技股份有限公司 | Medical film cutting machine for wide thin sheet |
-
2021
- 2021-12-27 CN CN202111609873.9A patent/CN114347122B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5934534A (en) * | 1996-03-11 | 1999-08-10 | Cmd Corporation | Separating a web at a line of weakness |
| CN201050019Y (en) * | 2007-05-14 | 2008-04-23 | 茅子超 | Banding type cutting machine |
| CN206264010U (en) * | 2016-12-14 | 2017-06-20 | 湖北华润科技有限公司 | A kind of rubber fixed length automatic cutting machine |
| JP2018134704A (en) * | 2017-02-21 | 2018-08-30 | 株式会社栗本鐵工所 | Cutting and separating device and method for manufacturing fiber-reinforced resin molded body |
| CN109881463A (en) * | 2019-02-23 | 2019-06-14 | 北京君杰一鸣企业服装发展有限公司 | A kind of band knife cutter |
| CN112064321A (en) * | 2020-09-25 | 2020-12-11 | 泉州尚德服饰有限公司 | Electric control pneumatic mop passing bed device for cutting operation |
| CN214055568U (en) * | 2020-11-25 | 2021-08-27 | 东莞市高益装饰材料有限公司 | Shearing conveying device not prone to jamming |
| CN216831063U (en) * | 2021-12-27 | 2022-06-28 | 湖北华强科技股份有限公司 | Medical film cutting machine for wide thin sheet |
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| CN114347122A (en) | 2022-04-15 |
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