CN209616329U - A kind of experimental provision of bi-directional synchronization oriented film - Google Patents

Abstract

The utility model discloses a kind of experimental provisions of bi-directional synchronization oriented film, which solve existing apparatus unreasonable structural designs, in the presence of structure is complicated, inconvenient, film drawing effect is poor, yield rate is low, the low technical problem of production efficiency is equipped with main body frame of the bottom with track-type facilities, the mainframe with sliding block, master controller and the fixed stretching device of clamping and driving motor, mainframe being electrically connected with master controller and is slid laterally on guide rail by the driving sliding block of driving motor；It is successively arranged the fixation with positioning fixed platform on the guide rail of main body frame and firmly grasps region and the heating stretch zones with heating device, the fixed stretching device of clamping is fixedly provided on mainframe, master controller is driven the fixed stretching device of clamping in the fixed clamping firmly grasped in region, movement by the movement of control mainframe and carries out clamping in heating stretch zones and stretch, mobile, can be widely applied to technical field of polymer material processing.

Description

A kind of experimental provision of bi-directional synchronization oriented film

Technical field

The utility model belongs to technical field of polymer material processing, and in particular to a kind of reality of bi-directional synchronization oriented film Experiment device.

Background technique

In recent years, China is increasing for the production requirement of specific use film, by many years production it was verified that general Unsuitable specific use film produces for the production equipment of logical packing film, they have also been arrived wants according to different product It asks, improves the adaptability to product, it is necessary to double drawing equipment be carried out with the classification of specific adaptation, Lai Tigao specific use is thin The quality of film.

Plastic film is produced using biaxial tension technology, the mechanical performance of film can be improved, is reduced to gas, steam etc. Permeability, promote the optical properties such as transparency, the surface gloss of film, reducing thickness deviation improves dimensional homogeneity. " " bidirectional stretching plastic film " 1999, Yin Yanping chief editor, Chemical Industry Press." disclosed on biaxial tension equipment mainly has Hypodermis belt roller opposite-compacting type stretches bent chain-type, screw drive formula, roller group longitudinal stretching --- guide rail cross directional stretch combined type and line style Magnetoelectricity driven type.And one-off drawing method is not yet universal in the mass production of film so far, and main reason is that: upper and lower leather belt roller The longitudinal stretching multiple of opposite-compacting type is non-adjustable, and production efficiency is low；And the transmission system of other several equipment and longitudinal multiple tune Section system is sufficiently complex；Longitudinal stretching multiple is not easy excessive；The price is very expensive for equipment.In addition, passing through large-strain finite element Analysis known to film edge its stress under fixture effect it is uneven and cause to be easy to appear brokenly during stretching Film.Patent (CN102343669A) proposes a kind of poly- phthalimide film biaxial orientation stretching machine, makes film by motor and vertical chain Cross directional stretch, feed screw nut expanding mechanism makes film longitudinal stretching, but its structure is complicated, and since film edge hangs over needle Easily occurs broken mould on plate.Patent (CN104723546A) proposes a kind of stepless biaxial tension side of the film based on saddle surface transition Method forms saddle surface using the circular wheel of two symmetry arrangements that form an angle and realizes longitudinal stretching, but circular wheel occupies Space is larger, and longitudinal stretching is also more limited than the amplitude of accommodation, and production efficiency is slow, and breakage rate is high, and yield rate is low, waste of material compares More, manufacturing cost is high.The problems such as there is also solvent volatilization in film drawing process simultaneously, causing environmental pollution.For above-mentioned The bidirectional extending method of current thin film and equipment there are the problem of, develop a kind of novel film two-way stretch device have it is great Meaning.

Utility model content

The utility model proposes one kind according to fluid mechanics principle for shortcoming and defect existing in the prior art Structure is simple and convenient to operate, and oriented film effect is good, and the uniformity of film significantly improves, and high yield rate, keeps production efficiency aobvious Write the experimental provision of the bi-directional synchronization oriented film improved.

For this purpose, the utility model provides a kind of experimental provision of bi-directional synchronization oriented film, it is equipped with bottom and has guide rail The main body frame of device, the mainframe with sliding block, master controller and fixed stretch of clamping being electrically connected with master controller fill It sets and driving motor, mainframe is slid laterally on guide rail by the driving sliding block of driving motor；On the guide rail of main body frame according to It is secondary to be equipped with the fixation with positioning fixed platform and firmly grasp region and the heating stretch zones with heating device, it is also solid on mainframe Equipped with the fixed stretching device of clamping, master controller drives the fixed stretching device of clamping solid by the movement of control mainframe Surely the clamping in region, movement are firmly grasped and carries out clamping in heating stretch zones and stretches, is mobile.

Preferably, heating device includes electric heater unit, and heating device drives its up and down motion by moving cylinder.

Preferably, matching used blower and heating are fixedly provided on the main body frame of heating device front side top Cover, when film is placed in heating stretch zones by the fixed stretching device of clamping, main controller controls blower will be in heating mantles Hot gas is blown out to above film.

Preferably, the heating zone upper peripheral of heating device is also covered with the energy gathering cap of frame structure.

Preferably, it is additionally provided with condenser system, is also covered with sealing protection cover outside main body frame, is located on rear side of heating device It is additionally provided with exhaust outlet on sealing protection cover on top, exhaust outlet is connected with condenser system.

Preferably, the fixed stretching device of clamping includes being fixed on mainframe by what transverse support bar and vertical supporting bar surrounded On the horizontal sliding bar that can be slid laterally in two transverse support bars respectively of frame structure and both ends, both ends can exist respectively Indulge longitudinal slide bar of sliding on two vertical supporting bars, also fixing sleeve is equipped with and main control respectively on horizontal sliding bar and longitudinal direction slide bar Device electrical connection can longitudinal extension lateral Pneumatic clamping jaw device and can transversal stretching longitudinal Pneumatic clamping jaw device, and lateral gas Dynamic clamping jaw device and longitudinal Pneumatic clamping jaw device are located in the same horizontal plane；It is clamped by main controller controls Pneumatic clamping jaw device With release, while also by main controller controls horizontal sliding bar and longitudinal slide bar respectively in transverse support bar and vertical supporting bar Sliding, to drive lateral Pneumatic clamping jaw device longitudinal extension and longitudinal Pneumatic clamping jaw device transversal stretching.

Preferably, nitrogen is passed through in sealing protection cover.

Preferably, mainframe, energy gathering cap, lateral Pneumatic clamping jaw device and longitudinal Pneumatic clamping jaw device are all made of heat resistant structure Steel and heat-resisting components, part can heatproof reach 400 DEG C.

The beneficial effects of the utility model are:

(1) experimental provision of the bi-directional synchronization oriented film of the utility model has structure simple, easy to operate, stretches Film effect is good, significantly improves the uniformity of film, and high yield rate；Significantly improve production efficiency simultaneously.

(2) experimental provision of the bi-directional synchronization oriented film of the utility model, use is biaxial stretch-formed, and biaxial stretch-formed is vertical To the process with laterally upper strained polymer, during stretching, polymer chain generates longitudinal and horizontal towards two vertical direction To the thin polymer film of equilibrium property.Simultaneously as the long chain nature of semi-crystalline polymer, stretch processing is to change polymer knot The effective ways of brilliant feature eliminate anisotropy of the film in optical property, the light for keeping film to be formed in high-temperature shaping Sliding surface, obtains the film with excellent mechanical, optics and hot property.Use the bi-directional synchronization oriented film of the utility model Experimental provision, the oriented film of preparation stretch the performance that can significantly improve film using Multipoint synchronous, for example, first is that stretching Intensity and elasticity modulus increase；Second is that impact strength and bending strength increase；Third is that cold-resistant, heat resistance improves；Fourth is that material is sharp It is improved with rate；Fifth is that electrical insulating property improves.

The experimental provision of the bi-directional synchronization oriented film of the utility model, structure is simple, easy to operate, oriented film effect Good: the film with excellent mechanical, optics and hot property significantly improves the uniformity of film to oriented film stock utilization Height, and high yield rate, significantly improve production efficiency.Equipment is low in energy consumption in device use process, and energy conservation reduces to greatest extent Environmental pollution meets the environment protecting and power-saving theory pursued now.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is that mainframe is located at the structural schematic diagram in heating stretch zones in Fig. 1；

Fig. 3 is the structural schematic diagram (band sealing protection cover) of the utility model；

Fig. 4 is the structural schematic diagram of the fixed stretching device of clamping of compressive state；

Fig. 5 is the structural schematic diagram of the fixed stretching device of clamping of tensional state；

Fig. 6 is the structural schematic diagram of the left view sectional view of Fig. 1；

Fig. 7 is the structural schematic diagram of the partial enlarged view of A in Fig. 6.

Marked in the figure: 1. main body frames, 2. mainframes, 3. guide rails, 4. fixed platforms, 5. heating devices, 6. moving cylinders, 7. blower, 8. heating mantles, 9. energy gathering caps, 10. sealing protection covers, 11. exhaust outlets, 12. transverse support bars, 13. longitudinal bracings Bar, 14. horizontal sliding bars, 15. longitudinal slide bars, 16. lateral Pneumatic clamping jaw devices, 17. longitudinal Pneumatic clamping jaw devices.

Specific embodiment

The utility model is described in further detail in the following with reference to the drawings and specific embodiments, to help the utility model is understood Content.Method used in the utility model is conventional method unless otherwise required；Used raw material and dress It sets, is conventional commercial product unless otherwise required.

As shown in Fig. 1-Fig. 7, the utility model provides a kind of experimental provision of bi-directional synchronization oriented film, is equipped with bottom Main body frame 1 with track-type facilities, the mainframe 2 with sliding block, master controller and the clamping being electrically connected with master controller Fixed stretching device and driving motor, mainframe are slid laterally on guides 3 by the driving sliding block of driving motor；Main body frame It is successively arranged the fixation with positioning fixed platform 4 on 1 guide rail 3 and firmly grasps region and the heating drawing zone with heating device 5 Domain is fixedly provided with the fixed stretching device of clamping on mainframe 2, and master controller is by the movement of control mainframe 2 to drive dress It is clamping to determine stretching device in the fixed clamping firmly grasped in region, movement and carry out clamping in stretch zones heating and stretch, move It is dynamic.

As shown in Figure 6 and Figure 7, heating device 5 includes electric heater unit, is heated using infrared module, homogeneous heating, temperature It spends adjustable.Heating device drives its up and down motion by moving cylinder 6, makes temperature control in the stretchable processing temperature model of film Within enclosing.Matching used blower 7 and heating mantles 8 are fixedly provided on the main body frame 1 of 5 front side top of heating device, when When film is placed in heating stretch zones by clamping fixed stretching device, main controller controls blower 7 is by the warm in heating mantles 8 Gas is blown out to above film.The heating zone upper peripheral of heating device 5 is also covered with the energy gathering cap 9 of frame structure.

A kind of experimental provision of bi-directional synchronization oriented film of the utility model, is additionally provided with condenser system, main body frame 1 It is also covered with sealing protection cover 10 outside, reduces external environment in film drawing process and film is polluted or interfered.It is located at Exhaust outlet 11 is additionally provided on sealing protection cover 10 in 5 back side top of heating device, exhaust outlet 11 is connected with condenser system. It is passed through compressed nitrogen in sealing protection cover 10, prevents oxygen in heating drawing process from causing oxidation to adversely affect film, makes thin Film is in optimal tensional state, guarantees film clarity height, good mechanical property after stretching.

As shown in Figure 4-Figure 7, the fixed stretching device of clamping includes being surrounded by transverse support bar 12 and vertical supporting bar 13 The transverse direction that the frame structure and both ends being fixed on mainframe 2 can slide laterally in two transverse support bars 12 respectively is sliding Bar 14, both ends can indulge longitudinal slide bar 15 of sliding, horizontal sliding bar 14 and longitudinal slide bar 15 on two vertical supporting bars 13 respectively On also respectively fixing sleeve be equipped be electrically connected with master controller can longitudinal extension lateral Pneumatic clamping jaw device 16 and can laterally stretch Longitudinal Pneumatic clamping jaw device 17 of contracting, and lateral Pneumatic clamping jaw device 16 and longitudinal Pneumatic clamping jaw device 17 are located at same level In face；It is clamped and is unclamped by main controller controls Pneumatic clamping jaw device, while also passing through main controller controls horizontal sliding bar 14 It is slided in transverse support bar 12 and vertical supporting bar 13 respectively with longitudinal slide bar 15, to drive lateral Pneumatic clamping jaw device 17 transversal stretching of 16 longitudinal extensions and longitudinal Pneumatic clamping jaw device.Mainframe 2, energy gathering cap 9,16 and of lateral Pneumatic clamping jaw device Longitudinal Pneumatic clamping jaw device 17 is all made of heat-resistance structural steel and heat-resisting components, part can heatproof reach 400 DEG C or more, mention High equipment is saved cost, is prolonged its service life to the applicable performance of heatproof film.

A kind of method of the experiment of biaxially oriented film, using the experimental provision of above-mentioned bi-directional synchronization oriented film, according to It is secondary the following steps are included:

1) sample loads process: before use, horizontal sliding bar 14 and longitudinal slide bar 15 are located at transverse support bar 12 and indulge To the both ends of support rod 13, i.e., lateral Pneumatic clamping jaw device 16 and longitudinal Pneumatic clamping jaw device 17 are in tensional state, fixed flat Platform 4 is located among the frame structure of the fixed stretching device of clamping, and the positioning that film to be tensioned is put into fixed promptly region is consolidated After on fixed platform 4, power on, starts the horizontal sliding bar 14 of the fixed stretching device of clamping by main controller controls and longitudinal direction is slided Bar 15 is simultaneously to movement among frame structure, to drive lateral Pneumatic clamping jaw device 16 and longitudinal Pneumatic clamping jaw device 17 simultaneously To frame structure middle shrinkage, pass through main controller controls transverse direction Pneumatic clamping jaw device 16 and longitudinal Pneumatic clamping jaw dress at the same time It sets 17 openings and clamps film to be tensioned, the clamping for completing film to be tensioned is fixed；

2) preheating procedure: starting driving motor by master controller, drive be mounted with the mainframe 2 of film to be tensioned along Guide rail 3 slides into heating stretch zones from fixed firmly grasp in region, and film to be tensioned is aligned to the surface of heating device 5, The hot gas in heating mantles 8 is blown out to above film by main controller controls blower 7, then passes through main controller controls activity Cylinder 6 drives heating device 5 to be moved upwards up to specified location, and the infrared ray that heating device 5 is released is through energy gathering cap 9 close to thin Film controls its temperature, makes temperature control within the scope of film stretchable processing temperature；

3) stretching process: after reaching preference temperature in step 2), start fixed stretch of clamping by main controller controls and fill The horizontal sliding bar 14 and longitudinal slide bar 15 set are simultaneously among frame structure respectively to transverse support bar 12 and vertical supporting bar 13 Both ends it is mobile, to drive lateral Pneumatic clamping jaw device 16 and longitudinal Pneumatic clamping jaw device 17 simultaneously to drawing among frame structure It stretches, film is stretched；

4) heating, drying process: by the wind speed of main controller controls blower 7, hot protection of producing by boasting by heating mantles 8 Gas, rough air movement, to increase the volatilization of solvent in film, hot protective gas is discharged by exhaust outlet 11, enters Condenser system realizes the recycling to solvent flashing in heating process, the oriented film after drying is made；It also reduces simultaneously close The dissolvent residual in 10 cabinet of shield is sealed, the production of high-quality thin-film is more advantageous to；

5) after drying in step 4) to the film after stretching, then pass through main controller controls for 6 band of moving cylinder After dynamic heating device 5 is moved down into specified location, and close heating device 5；Pass through main controller controls transverse direction pneumatic clamps Jaw arrangement 16 and longitudinal Pneumatic clamping jaw device 17 open, and remove lower stretching film product.

The experimental provision of the bi-directional synchronization oriented film of the utility model has structure simple, easy to operate, oriented film Effect is good, significantly improves the uniformity of film；Significantly improve production efficiency simultaneously.Biaxial stretch-formed is in machine and transverse direction The process of strained polymer, during stretching, polymer chain generate vertical and horizontal equilibrium property towards two vertical direction Thin polymer film.Simultaneously as the long chain nature of semi-crystalline polymer, stretch processing is to change having for polymer crystallization feature Efficacious prescriptions method, eliminates anisotropy of the film in optical property, and the smooth surface for keeping film to be formed in high-temperature shaping obtains Film with excellent mechanical, optics and hot property.Use the experimental provision of the bi-directional synchronization oriented film of the utility model, system Standby oriented film stretches the performance that can significantly improve film using Multipoint synchronous, for example, first is that tensile strength and springform Amount increases；Second is that impact strength and bending strength increase；Third is that cold-resistant, heat resistance improves；Fourth is that stock utilization improves；Fifth is that Electrical insulating property improves.

When selecting film material to be tensioned for PE PI, films Step 3) in extensograph parameter is carried out to film: stretch Speed 1-400mm/s, draw ratio are 1-9 times, and effect is optimal.

The experimental provision of the bi-directional synchronization oriented film of the utility model, by adjusting the finishing of mainframe, clamping is solid The leveling for determining the lateral Pneumatic clamping jaw device 16 and longitudinal Pneumatic clamping jaw device 17 of stretching device, can significantly improve film Planarization.

To sum up, the experimental provision of the bi-directional synchronization oriented film of the utility model, structure is simple, easy to operate, stretches thin Film effect is good: the film with excellent mechanical, optics and hot property significantly improves the uniformity of film to oriented film material Utilization rate is high, and high yield rate, significantly improves production efficiency.Equipment is low in energy consumption in device use process, energy conservation, to greatest extent Reduction environmental pollution, meet the environment protecting and power-saving theory pursued now.

The above is only the embodiments of the present invention, such as films Step 3) in film carry out extensograph parameter choosing It selects, specific optimum choice can be carried out according to selected film material to be tensioned.

In the description of the present invention, it should be understood that term " on ", "lower", "top", "bottom", "front", "rear", The orientation or positional relationship of the instructions such as "inner", "outside", " centre " be based on the orientation or positional relationship shown in the drawings, merely to Convenient for describing the utility model and simplifying description, rather than the device or element of indication or suggestion meaning must have specific side Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

Only as described above, only specific embodiment of the utility model, when the utility model cannot be limited with this The range of implementation, therefore the displacement of its equivalent assemblies, or according to equivalent changes and modifications made by the utility model patent protection scope, It should still belong to the scope that the utility model claims book is covered.

Claims (8)

1. a kind of experimental provision of bi-directional synchronization oriented film, which is characterized in that it is equipped with the main body that bottom has track-type facilities Frame, the mainframe with sliding block, master controller and the fixed stretching device of clamping being electrically connected with the master controller and drive Dynamic motor, the mainframe are slid laterally on the guide rail by the driving sliding block of the driving motor；The main body It is successively arranged the fixation with positioning fixed platform on the guide rail of frame and firmly grasps region and the heating drawing zone with heating device Domain, is fixedly provided with the fixed stretching device of clamping on the mainframe, and the master controller is by controlling the movement of the mainframe To drive the fixed stretching device of the clamping to firmly grasp the clamping in region, movement in the fixation and in the heating drawing zone Clamping is carried out in domain and stretches, is mobile.

2. a kind of experimental provision of bi-directional synchronization oriented film according to claim 1, which is characterized in that the heating dress It sets including electric heater unit, the heating device drives its up and down motion by moving cylinder.

3. a kind of experimental provision of bi-directional synchronization oriented film according to claim 2, which is characterized in that be located at described add Matching used blower and heating mantles are fixedly provided on the main body frame of thermal front side top, are drawn when the clamping is fixed When stretching device and being placed in film in the heating stretch zones, blower described in the main controller controls will be in the heating mantles Hot gas is blown out to above the film.

4. a kind of experimental provision of bi-directional synchronization oriented film according to claim 2, which is characterized in that the heating dress The heating zone upper peripheral set also is covered with the energy gathering cap of frame structure.

5. a kind of experimental provision of bi-directional synchronization oriented film according to claim 2, which is characterized in that it is additionally provided with cold Solidifying system, the main body frame are also covered with sealing protection cover outside, the sealing in the heating device back side top Exhaust outlet is additionally provided on shield, the exhaust outlet is connected with the condenser system.

6. a kind of experimental provision of bi-directional synchronization oriented film according to claim 4, which is characterized in that the clamping is solid Determining stretching device includes the frame structure being fixed on the mainframe surrounded by transverse support bar and vertical supporting bar, and Horizontal sliding bar that both ends can slide laterally in two transverse support bars respectively, both ends can be respectively in two longitudinal branch Longitudinal slide bar of sliding is indulged on strut, is also distinguished fixing sleeve on the horizontal sliding bar and longitudinal slide bar and is equipped with and the master control Device processed electrical connection can longitudinal extension lateral Pneumatic clamping jaw device and can transversal stretching longitudinal Pneumatic clamping jaw device, and it is described Lateral Pneumatic clamping jaw device and longitudinal Pneumatic clamping jaw device are located in the same horizontal plane；Pass through the main controller controls institute It states Pneumatic clamping jaw device to clamp and unclamp, while also passing through horizontal sliding bar described in the main controller controls and longitudinal slide bar It is slided in the transverse support bar and the vertical supporting bar respectively, so that the lateral Pneumatic clamping jaw device be driven longitudinally to stretch Contracting and longitudinal Pneumatic clamping jaw device transversal stretching.

7. a kind of experimental provision of bi-directional synchronization oriented film according to claim 5, which is characterized in that the sealing is anti- Nitrogen is passed through in shield.

8. a kind of experimental provision of bi-directional synchronization oriented film according to claim 6, which is characterized in that the host Frame, the energy gathering cap, the lateral Pneumatic clamping jaw device and longitudinal Pneumatic clamping jaw device are all made of heat-resistance structural steel and resistance to Hot components, part can heatproof reach 400 DEG C.