CN111633966B - Polyglycolic acid secondary production equipment - Google Patents
Polyglycolic acid secondary production equipment Download PDFInfo
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- CN111633966B CN111633966B CN202010473177.9A CN202010473177A CN111633966B CN 111633966 B CN111633966 B CN 111633966B CN 202010473177 A CN202010473177 A CN 202010473177A CN 111633966 B CN111633966 B CN 111633966B
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- Prior art keywords
- air
- heating channel
- heating
- channel
- product
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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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/005—Shaping by stretching, e.g. drawing through a die; Apparatus therefor characterised by the choice of materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
- B29B13/023—Half-products, e.g. films, plates
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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
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
- B29K2067/04—Polyesters derived from hydroxycarboxylic acids
- B29K2067/043—PGA, i.e. polyglycolic acid or polyglycolide
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Polyesters Or Polycarbonates (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The invention discloses polyglycolic acid secondary production equipment which comprises a material placing disc, a first laser diameter measuring instrument, a heating and stretching platform, a cooling table, a second laser diameter measuring instrument, a tensioning and guiding device and a material receiving disc which are sequentially connected, wherein the heating and stretching platform comprises a hot air blower and a heating channel, the heating channel comprises a main heating channel and side heating channels symmetrically arranged at two sides of the main heating channel, the upper end of the main heating channel is provided with a middle air hole and side air holes which are arranged at two sides of the middle air hole and are arranged in an inwards inclined manner, the main heating channel and the side heating channels are connected to an air outlet end of the hot air blower, the side heating channels are provided with vertical channels, and the vertical channels are provided with flow guide devices. The hot air type product stretching machine can heat a product for the second time through hot air, stretch the product through the pulling force of the hot air product, and the product is in a suspension state in the heating and stretching processes. The hot air generated by the hot air guiding device to the product is sequentially increased along the moving direction of the product, so that the uniform degree of product stretching is improved.
Description
Technical Field
The invention relates to polyglycolic acid secondary production equipment, and belongs to the technical field of polyglycolic acid processing equipment.
Background
Polyglycolic acid (PGA) is an ideal completely biodegradable material, can be completely degraded within 1-3 months, is non-toxic and harmless, and has been certified as a safe biodegradable plastic material in the united states, the european union and japan, with the final degradation products being carbon dioxide and water.
PGA is mainly applied to high-end medical fields such as absorbable surgical sutures and the like at present, and is imported from America and Japan. Has good biocompatibility, gas barrier property and machinability, is already applied to the gas barrier layer of food packaging, is used as a raw material of degradable plastic products, and has good application and industrialization prospects in the fields of medical use, oil gas exploitation, packaging and the like.
Polyglycolic acid is generally in a thread form, but since polyglycolic acid is often used for absorbable surgical sutures, its outer diameter, tensile strength and flexibility are strictly required, and secondary processing of polyglycolic acid is required.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide polyglycolic acid secondary production equipment, and solves the technical problems of low polyglycolic acid secondary processing quality and efficiency in the prior art.
In order to achieve the above object, the present invention adopts the following technical solutions:
the utility model provides a polyglycolic acid secondary production facility, a serial communication port, including consecutive blowing dish, laser diameter gauge one, the tensile platform of heating, the cooling platform, laser diameter gauge two, tensioning guider, the material collecting tray, the tensile platform of heating includes air heater and heating channel, heating channel includes main heating channel, the symmetry sets up in the side heating channel of main heating channel both sides, the upper end of main heating channel is equipped with middle gas pocket and sets up in the side gas pocket that middle gas pocket both sides and leanin set up, main heating channel, side heating channel all connects in the air-out end of air heater, side heating channel is equipped with vertical passageway, vertical passageway is equipped with guiding device.
Preferably, the polyglycolic acid secondary production equipment is characterized in that the guide device comprises air deflectors hinged to the vertical channel at two ends, and the angles between the air deflectors and the heating channel are sequentially increased along the direction of the heating channel.
Preferably, the polyglycolic acid secondary production equipment is characterized in that the guiding device further comprises a sliding plate and a sliding plate driving device for driving the sliding plate to slide, the sliding plate is provided with guide grooves with sequentially increased angles, the rotating shaft of the air deflector is provided with a driving rod, the driving rod is provided with a driving shaft, the driving shaft is connected to the guide grooves, and the sliding plate is slidably connected to the side heating channel.
Preferably, the polyglycolic acid secondary production equipment is characterized in that the sliding plate driving device comprises an ejector rod, a tension spring and a fixed seat connected to the side heating channel, two ends of the tension spring are respectively connected to the sliding plate and the fixed seat, the ejector rod is connected to the fixed seat through threads, and the end part of the ejector rod is connected to the sliding plate.
Preferably, the polyglycolic acid secondary production apparatus is characterized in that both ends of the slide plate are connected to the side heating channel through chutes.
Preferably, the polyglycolic acid secondary production equipment is characterized in that an airflow recovery channel is further arranged above the heating channel and is connected to an air inlet of the air heater.
Preferably, polyglycolic acid secondary production equipment, its characterized in that, the cooling bench includes air-cooler and switches on the cold wind groove at air-cooler air-out end, is equipped with the air-out groove in the cold wind groove.
Preferably, the polyglycolic acid secondary production equipment is characterized in that the tensioning and guiding device comprises an articulated arm and a movable guide wheel connected to the end of the articulated arm, and the articulated arm is provided with a spring or a torsion spring for driving the articulated arm to swing.
Preferably, the polyglycolic acid secondary production equipment is characterized in that a front guide wheel is further arranged between the material placing tray and the first laser diameter measuring instrument, and a rear guide wheel is further arranged between the second laser diameter measuring instrument and the tensioning device.
The invention has the following beneficial effects:
compared with the prior art, the hot air product stretching device can heat the product for the second time through the hot air, then stretch the product through the pulling force of the hot air product, and in the heating and stretching processes, the product can be in a suspension state under the action of the hot air, so that the product is prevented from being polluted or the product is prevented from being influenced by extra friction force.
The hot air guiding device sequentially increases the hot air generated by the product along the moving direction of the product, so that the uniform degree of product stretching can be improved.
The invention has higher processing efficiency and can realize continuous operation.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a cross-sectional view of a heating tunnel according to the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a top plan view of the skateboard of the present invention;
FIG. 5 is a block diagram of the cooling station of the present invention;
FIG. 6 is a partial enlarged view at B in FIG. 5;
the meaning of the reference symbols in the figures: 1-placing a tray; 2-laser diameter measuring instrument I; 3-heating a stretching platform; 4-a cooling stage; 5-laser diameter measuring instrument II; 6-a rear guide wheel; 7-a tensioning device; 8-material receiving disc; 9-a flow guide device; 11-a front guide wheel; 31-a primary heating channel; a 32-side heating channel; 33-a gas flow recovery channel; 311-middle air hole; 312-side vent; 321-a vertical channel; 41-an air cooler; 42-a cold air groove; 421-air outlet groove; 71-an articulated arm; 72-moving guide wheel; 91-a wind deflector; 92-a drive rod; 921-a drive shaft; 93-a slide plate; 931-guide groove; 932-a chute; 94-a fixed seat; 95-a top rod; 96-tension spring.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 6: the embodiment discloses polyglycolic acid secondary production equipment, including the blowing dish 1 that links to each other in proper order (what this embodiment said links to each other in proper order indicates according to the processing of product, the operation order), laser diameter measuring instrument 2, heating tensile platform 3, cooling platform 4, laser diameter measuring instrument two 5, tensioning guider 7, material collecting tray 8, heating tensile platform 3 includes hot-blast machine and heating channel, heating channel includes main heating channel 31, the symmetry sets up the side heating channel 32 in main heating channel 31 both sides, main heating channel 31's upper end is equipped with middle gas pocket 311 and sets up in middle gas pocket 311 both sides and the side gas pocket 312 that inwards inclines to set up, main heating channel 31, side heating channel 32 all connects in the air-out end of hot-blast machine, side heating channel 32 is equipped with vertical passageway 321, vertical passageway 321 is equipped with guiding device 9.
Specifically, the air guiding device 9 includes an air guiding plate 91 with two ends hinged to the vertical channel 321, and angles between the air guiding plate 91 and the heating channel sequentially increase along the direction of the heating channel. The sequential increase is here achieved by means of a slide plate 93, which slide plate 93 is provided with a guide groove 931 with a sequentially increasing angle, see fig. 4, the slide plate 93 being provided with a guide groove 931 arranged side by side, according to the view of fig. 4, and with a sequentially increasing angle from the bottom up to the horizontal (view of fig. 4).
The rotation axis of aviation baffle 91 is equipped with drive lever 92, and drive lever 92 is equipped with drive shaft 921, and drive shaft 921 is connected in spout 932, and slide 93 slidable connection is in side heating passageway 32, specifically: both ends of the slide plate 93 are connected to the side heating path 32 through slide grooves 932, and the slide grooves 932 play a role of sliding guide for the slide plate 93.
Specifically, the method comprises the following steps: the sliding plate driving device comprises an ejector rod 95, a tension spring 96 and a fixed seat 94 connected to the side heating channel 32, two ends of the tension spring 96 are respectively connected to the sliding plate 93 and the fixed seat 94, the ejector rod 95 is connected to the fixed seat 94 through threads, and the end part of the ejector rod is connected to the sliding plate 93. This enables the end of the push rod 95 to always push against the slide plate 93.
In order to realize the heat recovery, the air flow recovery channel 33 is further disposed above the heating channel in this embodiment, and the air flow recovery channel 33 is connected to the air inlet of the air heater, so that a complete hot air circulation can be formed.
With reference to fig. 5 and 6: the cooling platform 4 of this embodiment includes the air-cooler 41 and switches on the cold wind groove 42 at the air-out end of the air-cooler 41, is equipped with out wind groove 421 in the cold wind groove 42.
The tensioning guide 7 comprises a hinged arm 71 and a movable guide wheel 72 connected to the end of the hinged arm 71, the hinged arm 71 being provided with a spring or torsion spring for driving the hinged arm 71 to swing. The tensioning guide device 7 has two functions, namely, in the winding process, the movable guide wheel 72 reciprocates to enable the products to be sequentially wound on the material collecting tray 8, and the products are always in a tensioning state under the action of the spring or the torsion spring.
In this embodiment, a front guide wheel 11 is further arranged between the material placing tray 1 and the first laser diameter measuring instrument 2, and a rear guide wheel 6 is further arranged between the second laser diameter measuring instrument 5 and the tensioning device 7.
During operation, the feeding disc 1 is used for unreeling, the outer diameter of the banded polyglycolic acid is measured through the first laser diameter measuring instrument 2, the banded polyglycolic acid is heated by hot air through the heating and stretching platform 3, the stretched rope is melted again, cooling is achieved through the cooling table 4, remeasurement is achieved through the second laser diameter measuring instrument 5, and the polyglycolic acid enters the material collecting disc 8 through the tensioning device 7.
In the hot air heating process of the heating and stretching platform 3, the product is heated by the middle air hole 311 and the side air holes 312 at the same time, and the hot air flow heats the product and the heating channel without contact, so that the heating channel does not interfere with the product. At the side of the product, the vertical channel 321 at the side also has hot air, and the guiding effect of the hot air through the guiding device 9 is along the axial direction of the product, and the hot air has a certain stretching effect on the product. On the other hand, the inclination angle of the air deflector 91 is increased in sequence along the moving direction of the product, and the change of the angle causes the stretching effect of the hot air flow on the product to be gradually increased along the moving direction of the product. When the stretching acting force needs to be adjusted, all the air deflectors 91 can be operated to synchronously rotate only by rotating the ejector rod 95 and enabling the sliding plate 93 to move towards the air deflectors 91, and the rotating angle of the downstream air deflector 91 in the product moving direction is larger than that of the upstream air deflector 91, so that the pulling force of hot air on the product is sequentially increased along with the product moving direction, and the stretching uniformity of the product is improved.
Compared with the prior art, this embodiment can carry out the secondary heating through hot-blast to the product, then tensile with the product through the pulling force of hot-blast product, at above-mentioned heating, tensile in-process, the product can be in the suspended state under the effect of hot-blast, avoids polluting the product or extra frictional force causes the influence to the product.
The hot air generated by the hot air guiding device 9 in the embodiment on the product is sequentially increased along the moving direction of the product, so that the uniform degree of product stretching can be improved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and those improvements and modifications should be considered as the protection scope of the present invention.
Claims (4)
1. A polyglycolic acid secondary production device is characterized by comprising a material placing disc (1), a first laser diameter gauge (2), a heating and stretching platform (3), a cooling table (4), a second laser diameter gauge (5), a tensioning and guiding device (7) and a material receiving disc (8) which are connected in sequence, the heating and stretching platform (3) comprises an air heater and a heating channel, the heating channel comprises a main heating channel (31) and side heating channels (32) symmetrically arranged at two sides of the main heating channel (31), the upper end of the main heating channel (31) is provided with a middle air hole (311) and side air holes (312) which are arranged at the two sides of the middle air hole (311) and are arranged in an inward inclined way, the main heating channel (31) and the side heating channel (32) are both connected with the air outlet end of the air heater, the side heating channel (32) is provided with a vertical channel (321), and the vertical channel (321) is provided with a flow guide device (9);
in the heating and stretching processes, the product can be in a suspension state under the action of hot wind;
the flow guide device (9) comprises an air deflector (91) with two ends hinged to the vertical channel (321), and angles between the air deflector (91) and the heating channel are sequentially increased along the direction of the heating channel;
the flow guide device (9) further comprises a sliding plate (93) and a sliding plate driving device for driving the sliding plate (93) to slide, the sliding plate (93) is provided with a guide groove (931) with sequentially increased angles, a rotating shaft of the air guide plate (91) is provided with a driving rod (92), the driving rod (92) is provided with a driving shaft (921), the driving shaft (921) is connected to the guide groove (931), and the sliding plate (93) can be connected to the side heating channel (32) in a sliding mode;
the sliding plate driving device comprises a top rod (95), a tension spring (96) and a fixed seat (94) connected to the side heating channel (32), two ends of the tension spring (96) are connected to the sliding plate (93) and the fixed seat (94) respectively, the top rod (95) is connected to the fixed seat (94) through threads, and the end part of the top rod is connected to the sliding plate (93);
the tensioning guide device (7) comprises an articulated arm (71) and a movable guide wheel (72) connected to the end part of the articulated arm (71), and the articulated arm (71) is provided with a spring or a torsion spring for driving the articulated arm (71) to swing;
a front guide wheel (11) is further arranged between the material placing disc (1) and the first laser diameter measuring instrument (2), and a rear guide wheel (6) is further arranged between the second laser diameter measuring instrument (5) and the tensioning guide device (7).
2. A polyglycolic acid secondary production apparatus as claimed in claim 1 wherein both ends of said slide plate (93) are connected to the side heating passage (32) through chutes (932).
3. The polyglycolic acid secondary production equipment according to claim 1, further comprising an air recovery channel (33) above the heating channel, wherein the air recovery channel (33) is connected to the air inlet of the air heater.
4. The polyglycolic acid secondary production equipment of claim 1, characterized in that, cooling platform (4) includes air-cooler (41) and switches on in cold wind groove (42) of air-out end of air-cooler (41), be equipped with air-out slot (421) in cold wind groove (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010473177.9A CN111633966B (en) | 2020-05-29 | 2020-05-29 | Polyglycolic acid secondary production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010473177.9A CN111633966B (en) | 2020-05-29 | 2020-05-29 | Polyglycolic acid secondary production equipment |
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| Publication Number | Publication Date |
|---|---|
| CN111633966A CN111633966A (en) | 2020-09-08 |
| CN111633966B true CN111633966B (en) | 2022-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010473177.9A Active CN111633966B (en) | 2020-05-29 | 2020-05-29 | Polyglycolic acid secondary production equipment |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3108323A (en) * | 1961-06-23 | 1963-10-29 | Monsanto Chemicals | Process and apparatus for heating and stretching filamens |
| CN1086857A (en) * | 1992-08-25 | 1994-05-18 | 巴马格股份公司 | The adjustable heating unit that is used for advancing yarn |
| KR970027400A (en) * | 1995-11-10 | 1997-06-24 | 김상응 | Heat treatment device of absorbent suture |
| JPH11286825A (en) * | 1998-03-31 | 1999-10-19 | Toray Ind Inc | Heat treating equipment for fiber yarn and production of the same |
| WO2005083165A1 (en) * | 2004-02-26 | 2005-09-09 | Yamanashi Tlo Co., Ltd. | Drawn extremely fine biodegradable filament |
| CN104690952A (en) * | 2015-03-16 | 2015-06-10 | 安徽国风塑业股份有限公司 | Transversely-pulling air bellow applied to biaxially oriented film production line |
| CN107263838A (en) * | 2017-08-16 | 2017-10-20 | 苏州爱宝利恩精密器械科技有限公司 | One kind is applied to high-melting-point high-strength engineering plastic 3D printing silk extruding production line |
| CN207190254U (en) * | 2017-09-12 | 2018-04-06 | 浙江绿净环保科技有限公司 | A kind of polytetrafluoroethylene (PTFE) base band stretching-machine |
-
2020
- 2020-05-29 CN CN202010473177.9A patent/CN111633966B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3108323A (en) * | 1961-06-23 | 1963-10-29 | Monsanto Chemicals | Process and apparatus for heating and stretching filamens |
| CN1086857A (en) * | 1992-08-25 | 1994-05-18 | 巴马格股份公司 | The adjustable heating unit that is used for advancing yarn |
| KR970027400A (en) * | 1995-11-10 | 1997-06-24 | 김상응 | Heat treatment device of absorbent suture |
| JPH11286825A (en) * | 1998-03-31 | 1999-10-19 | Toray Ind Inc | Heat treating equipment for fiber yarn and production of the same |
| WO2005083165A1 (en) * | 2004-02-26 | 2005-09-09 | Yamanashi Tlo Co., Ltd. | Drawn extremely fine biodegradable filament |
| CN1914364A (en) * | 2004-02-26 | 2007-02-14 | 株式会社山梨Tlo | Drawn extremely fine biodegradable filament |
| CN104690952A (en) * | 2015-03-16 | 2015-06-10 | 安徽国风塑业股份有限公司 | Transversely-pulling air bellow applied to biaxially oriented film production line |
| CN107263838A (en) * | 2017-08-16 | 2017-10-20 | 苏州爱宝利恩精密器械科技有限公司 | One kind is applied to high-melting-point high-strength engineering plastic 3D printing silk extruding production line |
| CN207190254U (en) * | 2017-09-12 | 2018-04-06 | 浙江绿净环保科技有限公司 | A kind of polytetrafluoroethylene (PTFE) base band stretching-machine |
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| CN111633966A (en) | 2020-09-08 |
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