CN113232275B - Forming device before long fine drawing of PTFE - Google Patents
Forming device before long fine drawing of PTFE Download PDFInfo
- Publication number
- CN113232275B CN113232275B CN202110431779.2A CN202110431779A CN113232275B CN 113232275 B CN113232275 B CN 113232275B CN 202110431779 A CN202110431779 A CN 202110431779A CN 113232275 B CN113232275 B CN 113232275B
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- Prior art keywords
- fixed
- plate
- pressing
- movable plate
- upper pressing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
- B29C53/04—Bending or folding of plates or sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
- B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The invention discloses a forming device for PTFE long fibers before stretching, which comprises a support frame and a fixed plate connected with frame legs of the support frame, wherein a telescopic power cylinder is fixed on the support frame, the telescopic end of the telescopic power cylinder is connected with a lifting plate through a range extending rod, the fixed plate is connected with a movable plate through a first optical axis group, the lifting plate is connected to the movable plate in a second optical axis group in a penetrating manner, an upper pressing plate is fixed on the lower plane of the movable plate, and a lower pressing plate correspondingly arranged on a conveyor belt is arranged right below the upper pressing plate. According to the invention, the thin belt is pressed into a nearly circular shape through the automatic lifting device and the upper and lower pressing plates, so that the subsequent stretching process is more convenient, the stretching effect is better, and the quality is higher.
Description
Technical Field
The invention relates to the technical field of PTFE (polytetrafluoroethylene) manufacturing equipment, in particular to a forming device for PTFE long fibers before stretching.
Background
Polytetrafluoroethylene, commonly known as "plastic king", is a high molecular polymer prepared by polymerization using tetrafluoroethylene as a monomer. The white wax has good translucence, heat resistance and cold resistance, and can be used for a long time at-180-260 ℃. The material has the characteristics of acid resistance, alkali resistance and various organic solvents resistance, and is almost insoluble in all solvents.
In the dicing method, a polytetrafluoroethylene film is cut into thin tapes, and then stretched after being sintered at a high temperature, but the cross section of the stretched tapes is not nearly circular.
Disclosure of Invention
According to the technical problem to be solved by the invention, the invention provides a forming device for PTFE long fibers before stretching.
In order to achieve the purpose, the forming device before stretching the PTFE long fiber comprises a support frame and a fixed plate connected with a support frame foot, wherein a telescopic power cylinder is fixed on the support frame, the telescopic end of the telescopic power cylinder is connected with a lifting plate through a range extending rod, the fixed plate is connected with a movable plate through a first optical axis group, the lifting plate is connected to the movable plate in a second optical axis group in a penetrating manner, an upper pressing plate is fixed on the lower plane of the movable plate, and a lower pressing plate which is arranged on a conveyor belt correspondingly under the upper pressing plate.
Furthermore, a limiting plate is fixed on the upper plane of the movable plate in the gap between the lifting plate and the movable plate.
Furthermore, a blocking piece is fixed at one end of the second optical axis group, which is located at the fixed plate, and a compression spring is fixed at the outer wall between the lifting plate and the movable plate.
Furthermore, a plurality of upper pressing teeth which are arranged in parallel are fixed on the lower plane of the upper pressing plate, pressing cavities of the upper pressing teeth are semicircular, and the upper pressing teeth and the side walls of the upper pressing teeth form a triangular cavity.
Furthermore, the upper plane of holding down plate is provided with places the chamber, place the fixed a plurality of pushing down teeth that arrange side by side of chamber bottom, the shaping chamber of pushing down the tooth is semi-circular to pushing down and all leaving the clearance between tooth and the pushing down, all having seted up the mouth that falls in the clearance, the mouth that falls links to each other with the collection chamber of lower floor.
Furthermore, the lower pressing plate is fixed on the conveying belt through a fixing limiting device, and a plurality of groups of equidistant fixing limiting devices are arranged on the surface of the conveying belt.
Furthermore, fixed stop device wherein 2 lie in long limit one side and be scalable, including fixed knot, slider, loose axle and stopper, fixed knot is the right angle form to both sides are close to bottom department and all are fixed with the slider, the slider joint is in the spout in the conveyer belt body, fixed knot outer apex department is fixed with the loose axle, the loose axle cross-under is on the baffle of conveyer belt inside to the other end is fixed with the stopper.
Has the advantages that: according to the forming device before stretching the PTFE long fiber, the thin strip is pressed into a nearly circular shape through the automatic lifting device and the upper and lower pressing plates, the leftover materials can be collected and reused, the subsequent stretching process is more convenient and faster, the stretching effect is better, and the quality is higher.
Drawings
The invention is described in further detail below with reference to the drawings and the detailed description.
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
FIG. 3 is an enlarged view of part A of the present invention.
Fig. 4 is a schematic view of the movable fixing and limiting device of the present invention.
In the figure: 1 is a supporting frame; 2 is a fixed plate; 3 is a movable plate; 4 is a lifting plate; 5 is an upper pressure plate; 6 is a collection cavity; 7 is a limit plate; 8 is a lower press plate; 9 is an upper pressing tooth; 10 is a pressing tooth; 11 is a falling port; 12 is a first optical axis group; 13 is a second optical axis group; 14 is a conveyor belt; 15 is a fixing buckle; 16 is a slide block; 17 is a movable shaft; and 18 is a limiting block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 scope of the present invention.
As shown in fig. 1-4, a molding device before stretching a PTFE long fiber comprises a support frame and a fixed plate connected with a support frame foot, wherein a telescopic power cylinder is fixed on the support frame 1, a telescopic end of the telescopic power cylinder is connected with a lifting plate 4 through a range extending rod, the fixed plate 2 is connected with a movable plate 3 through a first optical axis group 12, the lifting plate 4 is connected in a second optical axis group 13 on the movable plate 3 in a penetrating manner, an upper pressing plate 5 is fixed on a lower plane of the movable plate 3, and a lower pressing plate 8 installed on a conveyor belt 14 is correspondingly arranged under the upper pressing plate 5.
The heated polytetrafluoroethylene plate is placed in a placing cavity of the lower pressing plate 8, the telescopic cylinder on the support frame 1 extends to drive the lifting plate 4 to press down, the lifting plate 4 presses down to a certain degree, the compression spring on the second optical axis group 13 is compressed to the limit, the movable plate 3 is pushed to press down, and the upper pressing plate 5 presses the polytetrafluoroethylene plate into a nearly circular shape through the forming cavity.
As shown in fig. 2, a limiting plate 7 is fixed on the upper surface of the movable plate 3 in the gap between the lifting plate 4 and the movable plate 3.
The limiting plate 7 is used for limiting the descending depth of the lifting plate 4 and preventing the upper pressing teeth 9 and the lower pressing teeth 10 from being crushed due to too deep descending.
As shown in fig. 2, blocking pieces are fixed at one end of the fixed plate 2 of the second optical axis group 13, and compression springs are fixed on outer walls between the lifting plate 4 and the movable plate 3.
The baffle plate is used for resisting when the telescopic cylinder is contracted and driving the movable plate 3 to lift up, the compression spring is used for buffering, and impact force of the lifting plate 4 on the limiting plate 7 and the movable plate 3 is reduced when the telescopic cylinder is contracted.
As shown in fig. 2 and 3, a plurality of upper pressing teeth 9 arranged in parallel are fixed on the lower plane of the upper pressing plate 5, the pressing cavities of the upper pressing teeth 9 are semicircular, and the upper pressing teeth 9 and the side walls of the upper pressing teeth 9 form a triangular cavity.
The upper plane of the lower pressing plate 8 is provided with a placing cavity, a plurality of pressing teeth 10 which are arranged in parallel are fixed at the bottom of the placing cavity, a forming cavity of the pressing teeth 10 is semicircular, gaps are reserved between the pressing teeth 10 and the pressing teeth 10, falling openings 11 are formed in the gaps, and the falling openings 11 are connected with the collecting cavity 6 of the lower layer.
Wherein, the inside shaping chamber will be a nearly circular chamber when pressing tooth 9 and pressing tooth 10 to fold on, and the banding material can be squeezed into nearly circular form, and unnecessary part can be pressed tooth 9 and the side wall of pressing tooth 9 on and constitute triangle cavity and pressing tooth 10 and pressing down and fall a mouthful 11 on the clearance between the tooth 10 and pressing down and get into collection chamber 6 in, retrieve reuse through the collection steamer tray in the collection chamber 6.
As shown in fig. 1, the lower press plate 8 is fixed on the conveyor belt 14 through a fixed limiting device, and a plurality of groups of equidistant fixed limiting devices are arranged on the belt surface of the conveyor belt 14.
Wherein the shaping can be carried out more quickly and efficiently by means of the conveyor belt 14, the stop means being fixed in order to prevent movement on the conveyor belt.
As shown in fig. 1 and 4, 2 of the fixed limiting devices are telescopic on one side of the long side and comprise a fixed buckle 15, a sliding block 16, a movable shaft 17 and a limiting block 18, the fixed buckle 15 is right-angled, the sliding blocks 16 are fixed on two sides close to the bottom end, the sliding blocks 16 are clamped in sliding grooves in the belt body of the conveyor belt 14, the movable shaft 17 is fixed on the outer top of the fixed buckle 15, the movable shaft 17 penetrates through a baffle in the conveyor belt 14, and the limiting block 18 is fixed on the other end of the fixed limiting device.
Wherein, when placing holding down plate 8 at the fixed stop device of conveyer belt 14, two fixed knot 15 on the homonymy long limit promote backward, and slider 16 removes along the spout in the conveyer belt 14, and loose axle 17 promotes backward, and the reset spring compression on the loose axle 17 when promoting, holding down plate 8 prevents to accomplish the back, loosens fixed knot 15, and the reset spring on the loose axle 17 resets, and fixed knot 15 supports 8 corners of holding down plate.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.
Claims (5)
1. The utility model provides a forming device before long fine drawing of PTFE, includes support frame and the fixed plate of being connected with support frame foot, its characterized in that: the support frame (1) is fixed with a telescopic power cylinder, the telescopic end of the telescopic power cylinder is connected with a lifting plate (4) through a range extending rod, a fixed plate (2) is connected with the movable plate (3) through a first optical axis group (12), the lifting plate (4) is connected in a second optical axis group (13) on the movable plate (3) in a penetrating manner, an upper pressing plate (5) is fixed on the lower plane of the movable plate (3), a lower pressing plate (8) correspondingly installed on a conveyor belt (14) is arranged under the upper pressing plate (5), a plurality of upper pressing teeth (9) arranged in parallel are fixed on the lower plane of the upper pressing plate (5), a pressing cavity of the upper pressing teeth (9) is semicircular, a triangular cavity is formed by the upper pressing teeth (9) and the side wall of the upper pressing teeth (9), a placing cavity is arranged on the upper plane of the lower pressing plate (8), a plurality of lower pressing teeth (10) arranged in parallel are fixed at the bottom of the placing cavity, the forming cavity of the pressing tooth (10) is semicircular, gaps are reserved between the pressing tooth (10) and the pressing tooth (10), a falling opening (11) is formed in each gap, and the falling opening (11) is connected with the collecting cavity (6) of the lower layer.
2. The apparatus for forming a PTFE filament before drawing according to claim 1, wherein: a limiting plate (7) is fixed on the upper plane of the movable plate (3) in the gap between the lifting plate (4) and the movable plate (3).
3. The apparatus for forming a PTFE filament before drawing according to claim 1, wherein: and blocking pieces are fixed at one ends of the second optical axis groups (13) positioned on the fixed plate (2), and compression springs are fixed on the outer walls positioned between the lifting plate (4) and the movable plate (3).
4. The apparatus for molding a long PTFE fiber before drawing according to claim 1, wherein: the lower pressing plate (8) is fixed on the conveying belt (14) through a fixed limiting device, and a plurality of groups of equidistant fixed limiting devices are arranged on the belt surface of the conveying belt (14).
5. The apparatus for molding a long PTFE fiber before drawing according to claim 4, wherein: fixed stop device wherein 2 lie in long limit one side and be scalable, including fixed knot (15), slider (16), loose axle (17) and stopper (18), fixed knot (15) are the right angle form to both sides are close to bottom department and all are fixed with slider (16), slider (16) joint is in conveyer belt (14) internal spout, fixed knot (15) outer apex department is fixed with loose axle (17), loose axle (17) cross-under is on the baffle of conveyer belt (14) inside to the other end is fixed with stopper (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110431779.2A CN113232275B (en) | 2021-04-21 | 2021-04-21 | Forming device before long fine drawing of PTFE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110431779.2A CN113232275B (en) | 2021-04-21 | 2021-04-21 | Forming device before long fine drawing of PTFE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113232275A CN113232275A (en) | 2021-08-10 |
| CN113232275B true CN113232275B (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110431779.2A Active CN113232275B (en) | 2021-04-21 | 2021-04-21 | Forming device before long fine drawing of PTFE |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330373A (en) * | 2011-06-21 | 2012-01-25 | 江苏宏泰不锈钢丝绳有限公司 | Wire rope compaction die device |
| CN105714393A (en) * | 2016-04-01 | 2016-06-29 | 三河市浩运盛跃碳纳米科技有限公司 | Fibre pre-treating device |
| CN207695622U (en) * | 2017-12-29 | 2018-08-07 | 山西大缙华磁性材料有限公司 | A kind of shaper preparing magnet |
| CN109228224A (en) * | 2018-09-27 | 2019-01-18 | 新昌县明拓机械有限公司 | A kind of plastic pipe making equipment for plastic processing |
| CN110238235A (en) * | 2019-06-11 | 2019-09-17 | 安徽环新集团有限公司 | Circlip wire rod production line and production method for automobile engine |
-
2021
- 2021-04-21 CN CN202110431779.2A patent/CN113232275B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330373A (en) * | 2011-06-21 | 2012-01-25 | 江苏宏泰不锈钢丝绳有限公司 | Wire rope compaction die device |
| CN105714393A (en) * | 2016-04-01 | 2016-06-29 | 三河市浩运盛跃碳纳米科技有限公司 | Fibre pre-treating device |
| CN207695622U (en) * | 2017-12-29 | 2018-08-07 | 山西大缙华磁性材料有限公司 | A kind of shaper preparing magnet |
| CN109228224A (en) * | 2018-09-27 | 2019-01-18 | 新昌县明拓机械有限公司 | A kind of plastic pipe making equipment for plastic processing |
| CN110238235A (en) * | 2019-06-11 | 2019-09-17 | 安徽环新集团有限公司 | Circlip wire rod production line and production method for automobile engine |
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| Publication number | Publication date |
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| CN113232275A (en) | 2021-08-10 |
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