CN203003952U - Polytetrafluoroethylene (PTFE) cutting device - Google Patents
Polytetrafluoroethylene (PTFE) cutting device Download PDFInfo
- Publication number
- CN203003952U CN203003952U CN 201220732099 CN201220732099U CN203003952U CN 203003952 U CN203003952 U CN 203003952U CN 201220732099 CN201220732099 CN 201220732099 CN 201220732099 U CN201220732099 U CN 201220732099U CN 203003952 U CN203003952 U CN 203003952U
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- ptfe
- rotating shaft
- cutting
- polytetrafluoroethylene
- circular knife
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Abstract
The utility model discloses a polytetrafluoroethylene (PTFE) cutting device which comprises a feeding shaft used for placing a PTFE coil, a round cutting blade group used for cutting a PTFE material, and a reeling shaft used for reeling of a PTFE belt. The round cutting blade group comprises an upper cutting blade assembly and a lower cutting blade assembly, wherein the upper cutting blade assembly comprises a first rotating shaft, a plurality of round cutting blades are arranged on the first rotating shaft, and each of the plurality of round cutting blades is connected with an elastic device which is fixed on the first rotating shaft. The lower cutting blade assembly comprises a second rotating shaft, wherein a plurality of stop rings are arranged on second rotating shaft, a gas is formed between every two stop rings, and the plurality of round cutting blades are attached to the plurality of stop rings in a matched mode, and cutting edges of the plurality of round cutting blades exceed the plurality of stop rings. According to the PTFE cutting device, the upper cutting blade assembly is not prone to abrasion, and even if the upper cutting blade assembly wears slightly, the phenomenon that the PTFE material cannot be cut completely cannot happen.
Description
Technical field
The utility model relates to the technical field of polytetrafluoroethylene (PTFE) cutting, especially a kind of polytetrafluoroethylene (PTFE) cutting device.
Background technology
Raw material band is a kind of assistant product commonly used during hot-water heating is installed, for the pipe fitting junction, strengthening the seal of pipeline junction. the raw material band chemical name is polytetrafluoroethylene (PTFE), all use the ordinary white teflin tape in HVAC and plumbing at present, and natural gas line etc. also have special teflin tape, primary raw material is all polytetrafluoroethylene (PTFE) in fact, and only some techniques are different.A lot of raw material band enterprise all adopts flat blade to cut, flat blade is cut only has the blade of one side to downcut from top to bottom, and flat blade is cut existent defect: the raw material band of 1, cutting " burr " usually occur or minute sinuate phenomenon of tangent line is affected the product quality class.The tension force of 2, cutting belt because of flat blade has higher requirements, and one meets that the belt tension variation can occur that belt has local undivided phenomenon and the belt that occurs shutting down and will not cut cuts off and causes waste; Be unfavorable for cutting, batching the propelling of automation.3, the blade cost is high, and allowing blade replacement is wanted in per tour, the shortcomings such as inefficiency.In addition, also there is the circular knife cutting cutting of other films, it is the cutting mechanism of 2313719 quick banding machine as China Patent Publication No., it comprises roller, walks around the circumferential surface of roller and is stretched in this surperficial film, and the sidepiece of described roller is provided with circular knife, this circular knife is arranged in cutter holder, the circle centre position of described circular knife is provided with the circular knife rotating shaft, makes circular knife to rotate around the circular knife rotating shaft, and described cutter holder is arranged on pneumatic actuating device.This cutting device has used circular knife, but above-mentioned circular knife and flat blade do not have substantive difference, remain by a blade and cut from top to bottom, and when cutting film due to circular knife circular knife the edge of a knife all the time with roller contact, can make like this circular knife rate of wear very fast, and circular knife slightly there are wearing and tearing the phenomenon that film can not be cut fully will occur.So above-mentioned circular knife is cut still to exist with flat blade and is cut same problem.
Summary of the invention
The utility model is not enough for prior art, and a kind of polytetrafluoroethylene (PTFE) cutting device is provided, and the cutter of this polytetrafluoroethylene (PTFE) cutting device is difficult for being worn, and the blade cost is low, cuts without the burr phenomenon, batches automation and lays the foundation for cutting.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals: a kind of polytetrafluoroethylene (PTFE) cutting device, comprise being used for cutting the circular knife group of polytetrafluoroethylene (PTFE) for the dispensing shaft of placing the polytetrafluoroethylene (PTFE) volume, be used for batching the winding off spindle of teflin tape; Described circular knife group comprises cutter and bottom knife, described cutter comprises the first rotating shaft, be provided with some circular knifes that can slippage in the first rotating shaft in described the first rotating shaft, some described circular knifes all are connected with elastic device, described elastic device is fixed in the first rotating shaft, described bottom knife comprises the second rotating shaft, be provided with some back-up rings in described the second rotating shaft, there is the space between some described back-up rings, some described circular knifes and some described back-up rings are fitted, and some described circular knife cutting edges surpass some described back-up rings.
the utility model is used in conjunction with by circular knife and back-up ring, cuts as scissors and cuts, and two of up and down blade is cut off middle raw material band, more can ensure the quality of products, and makes cut surface more smooth, smooth, filament do not occur, realizes putting forward high-quality purpose, on the other hand, owing to being necessary for zero distance between circular knife and back-up ring, if but both contact tension and can make again the friction between circular knife and back-up ring produce high temperature and affect blade life, regulate both apart from the time operating personnel be difficult to accurately to hold both and contact after between the two pressure, and elastic device of the present utility model can realize accurately determining the purpose of pressure between the two, because elastic device leans circular knife on back-up ring, pressure between the two can come fine adjustment by elastic device, by regulating, elastic device can make to cut to cut and add when running into certain resistance man-hour, still can guarantee not produce the gap between the two, can avoid again its elastic force excessive, make the friction between blade produce high temperature and affect blade life.At last; due to being used in conjunction with of circular knife and back-up ring, cutting as scissors and cut, to the tension force no requirement (NR) of raw material band; avoided one to meet the raw material band tension variation and the phenomenon that raw material occur shutting down with the undivided phenomenon in part occurs, batched automation and lay a good foundation for cutting.
In technique scheme, preferred, be provided with the First Transition axle between described dispensing shaft and circular knife group.
In technique scheme, preferred, be provided with the second transition axis between described circular knife group and winding off spindle.
In technique scheme, preferred, described winding off spindle has two.
the utility model compared with prior art, have following beneficial effect: the utility model is used in conjunction with by circular knife and back-up ring, cut as scissors and cut, two of up and down blade is cut off middle raw material band, more can ensure the quality of products, make cut surface more smooth, smooth, filament do not occur, realize putting forward high-quality purpose, on the other hand, owing to being necessary for zero distance between circular knife and back-up ring, if but both contact tension and can make again the friction between circular knife and back-up ring produce high temperature and affect blade life, regulate both apart from the time operating personnel be difficult to accurately to hold both and contact after between the two pressure, and elastic device of the present utility model can realize accurately determining the purpose of pressure between the two, because elastic device leans circular knife on back-up ring, pressure between the two can come fine adjustment by elastic device, by regulating, elastic device can make to cut to cut and add when running into certain resistance man-hour, still can guarantee not produce the gap between the two, can avoid again its elastic force excessive, make the friction between blade produce high temperature and affect blade life.At last; due to being used in conjunction with of circular knife and back-up ring, cutting as scissors and cut, to the tension force no requirement (NR) of raw material band; avoided one to meet the raw material band tension variation and the phenomenon that raw material occur shutting down with the undivided phenomenon in part occurs, batched automation and lay a good foundation for cutting.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the structural representation of circular knife group in the utility model embodiment.
The specific embodiment
below in conjunction with accompanying drawing and the specific embodiment, the utility model is described in further detail: referring to Fig. 1 to Fig. 2, a kind of polytetrafluoroethylene (PTFE) cutting device, comprise for the dispensing shaft 1 of placing the polytetrafluoroethylene (PTFE) volume, be used for cutting the circular knife group 2 of polytetrafluoroethylene (PTFE), be used for batching the winding off spindle 3 of teflin tape, be provided with two winding off spindles 3 that are used for batching teflin tape in the present embodiment, described circular knife group 2 comprises cutter 100 and bottom knife 200, described cutter 100 comprises the first rotating shaft 101, be provided with some circular knifes 102 that can slippage in the first rotating shaft 101 in described the first rotating shaft 101, some described circular knifes 102 all are connected with elastic device 103, described elastic device 103 is fixed in the first rotating shaft 101, described bottom knife 200 comprises the second rotating shaft 201, be provided with some back-up rings 202 in described the second rotating shaft 201, there is the space between some described back-up rings 202, some described circular knifes 102 are fitted with some described back-up rings 202, some described circular knife 102 cutting edges surpass some described back-up rings 202, be provided with First Transition axle 4 between described dispensing shaft 1 and circular knife group 2, be provided with the second transition axis 5 between described circular knife group 2 and winding off spindle 3, certainly this kind polytetrafluoroethylene (PTFE) cutting device should be arranged on support (not drawing on figure).
the present embodiment has the space between the back-up ring 202 due to bottom knife 200 in use, circular knife 102 on cutter 100 is adjacent to the back-up ring 202 on bottom knife 200, the cutting edge of circular knife 102 surpasses back-up ring 202, the rate of wear of the circular knife 102 on the circular knife group that can slow down like this 2 cutters 100, and slightly there are wearing and tearing still film can be cut apart fully, and the circular knife 102 of cutter 100 is connected with elastic device 103, elastic device 103 produces elastic force circular knife 102 is pressed to back-up ring 202, can not make circular knife 102 separate with back-up ring 202 when making circular knife 102 run into certain resistance yet, teflin tape after preventing from cutting produces burr.
Claims (4)
1. a polytetrafluoroethylene (PTFE) cutting device, is characterized in that: comprise being used for cutting the circular knife group (2) of polytetrafluoroethylene (PTFE) for the dispensing shaft (1) of placing the polytetrafluoroethylene (PTFE) volume, be used for batching the winding off spindle (3) of teflin tape, described circular knife group (2) comprises cutter (100) and bottom knife (200), described cutter (100) comprises the first rotating shaft (101), be provided with in described the first rotating shaft (101) some can be at the circular knife (102) of the upper slippage of described the first rotating shaft (101), some described circular knifes (102) all are connected with elastic device (103), described elastic device (103) is fixed in the first rotating shaft (101), described bottom knife (200) comprises the second rotating shaft (201), be provided with some back-up rings (202) in described the second rotating shaft (201), there is the space between some described back-up rings (202), some described circular knifes (102) are fitted with some described back-up rings (202), some described circular knifes (102) cutting edge surpasses some described back-up rings (202).
2. a kind of polytetrafluoroethylene (PTFE) cutting device as claimed in claim 1, is characterized in that: be provided with First Transition axle (4) between described dispensing shaft (1) and circular knife group (2).
3. a kind of polytetrafluoroethylene (PTFE) cutting device as claimed in claim 1 or 2, is characterized in that: be provided with the second transition axis (5) between described circular knife group (2) and winding off spindle (3).
4. a kind of polytetrafluoroethylene (PTFE) cutting device as claimed in claim 1 or 2, it is characterized in that: described winding off spindle (3) has two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220732099 CN203003952U (en) | 2012-12-27 | 2012-12-27 | Polytetrafluoroethylene (PTFE) cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220732099 CN203003952U (en) | 2012-12-27 | 2012-12-27 | Polytetrafluoroethylene (PTFE) cutting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203003952U true CN203003952U (en) | 2013-06-19 |
Family
ID=48595584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220732099 Expired - Lifetime CN203003952U (en) | 2012-12-27 | 2012-12-27 | Polytetrafluoroethylene (PTFE) cutting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203003952U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042551A (en) * | 2012-12-27 | 2013-04-17 | 宁波昌祺氟塑料制品有限公司 | Polytetrafluoroethylene cutting device and polytetrafluoroethylene cutting method |
| CN105034035A (en) * | 2015-07-31 | 2015-11-11 | 北京航天光华电子技术有限公司 | Cutting machine for teflon film |
-
2012
- 2012-12-27 CN CN 201220732099 patent/CN203003952U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042551A (en) * | 2012-12-27 | 2013-04-17 | 宁波昌祺氟塑料制品有限公司 | Polytetrafluoroethylene cutting device and polytetrafluoroethylene cutting method |
| CN103042551B (en) * | 2012-12-27 | 2015-12-02 | 宁波昌祺氟塑料制品有限公司 | A kind of polytetrafluoroethylene (PTFE) cutting device and method |
| CN105034035A (en) * | 2015-07-31 | 2015-11-11 | 北京航天光华电子技术有限公司 | Cutting machine for teflon film |
| CN105034035B (en) * | 2015-07-31 | 2016-10-12 | 北京航天光华电子技术有限公司 | Polytetrafluoroethylene film cutter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |
|
| CX01 | Expiry of patent term |