CN110698999A - Novel explosion-proof membrane - Google Patents

Novel explosion-proof membrane Download PDF

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Publication number
CN110698999A
CN110698999A CN201910922146.4A CN201910922146A CN110698999A CN 110698999 A CN110698999 A CN 110698999A CN 201910922146 A CN201910922146 A CN 201910922146A CN 110698999 A CN110698999 A CN 110698999A
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China
Prior art keywords
blade
fixing shaft
membrane
explosion
film
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Granted
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CN201910922146.4A
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Chinese (zh)
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CN110698999B (en
Inventor
王小莉
王萍
梁明月
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Nanjing Wuren Optical Film Co Ltd
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Nanjing Wuren Optical Film Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/29—Laminated material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
    • B26D1/08—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type
    • B26D1/09—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type with a plurality of cutting members
    • B26D1/095—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type with a plurality of cutting members for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/12—Fluid-pressure means
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/12—Esters of monohydric alcohols or phenols
    • C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/04—Homopolymers or copolymers of esters
    • C09J133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/38—Pressure-sensitive adhesives [PSA]
    • C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/385—Acrylic polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2423/00—Presence of polyolefin
    • C09J2423/10—Presence of homo or copolymers of propene
    • C09J2423/106—Presence of homo or copolymers of propene in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2433/00—Presence of (meth)acrylic polymer
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2467/00—Presence of polyester
    • C09J2467/005—Presence of polyester in the release coating
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2467/00—Presence of polyester
    • C09J2467/006—Presence of polyester in the substrate

Abstract

The invention discloses a novel explosion-proof membrane which is formed by sequentially arranging a release membrane, an OCA pressure-sensitive adhesive layer, a PET optical hardening membrane and a PP protective membrane; the preparation method comprises the steps of firstly adding 0.2-1% of L-75 curing agent into OCA pressure-sensitive adhesive, uniformly stirring, coating the OCA pressure-sensitive adhesive on a PET optical hardening film, drying in a 100 ℃ oven for 3-5 min, then coating a release film on the surface of the OCA pressure-sensitive adhesive layer, coating a PP protective film on the non-corona surface of the PET optical hardening film, and finally cutting according to corresponding parameters by using an explosion-proof film cutting device; the explosion-proof membrane has the advantages of simple structure, high quality, large stripping force, high-strength explosion-proof function and difficult breakage; after bonding and bubble removal, no orange peel influence on visual effect appears; the explosion-proof membrane cutting device disclosed by the invention can realize the quick and efficient cutting of the whole explosion-proof membrane, the edge of the cut explosion-proof membrane has no burrs, and the final product has high quality.

Description

Novel explosion-proof membrane
Technical Field
The invention relates to the technical field of explosion-proof membranes, in particular to a preparation method of a novel explosion-proof membrane and related cutting equipment.
Background
Electronic products such as cell-phone, computer have become the indispensable article of modern's life gradually, the screen of this type of product is mostly capacitive touch screen or glass screen, in order to prevent that the piece after the unexpected fragmentation of screen from scattering and influencing user or peripheral crowd's safety, can laminate the rupture membrane on display glass generally, the screen of the electronic product of rupture membrane takes place to break under the condition that receives external force and assaults the back, the screen piece can bond and become a whole together, effectively prevent that it from scattering and causing unnecessary injury.
The production requirements of the explosion-proof membrane mainly comprise: the film surface is level and smooth, thick and smooth, and the transmittance will reach 90%, guarantees the screen definition, and secondly, the adhesion will be strong, can not appear bonding insecure phenomenon, and finally, will guarantee the ageing resistance of product, the live time of extension product.
The explosion-proof membrane produced in the prior art needs to be improved in the following points: firstly, the pursuit of high adhesion of the explosion-proof membrane leads to that the explosion-proof membrane is not easy to bubble, and uneven orange peel phenomenon is easy to appear on the surface of the membrane, thus influencing the visual effect;
secondly, the synthesis of the pressure-sensitive adhesive needs to meet the requirements that the initial viscosity is small, but the peeling force of the bonded glass is large, the adhesive cannot be soft, the phenomenon of unevenness caused by pressure damage on a coiled sample is prevented, and the glass transition temperature Tg of the adhesive needs to be controlled.
In addition, when the existing rupture membrane is produced, the rupture membrane is usually processed in a whole block form and then cut according to parameters of specific products, the cutting efficiency of the cutting device in the prior art is low, the rupture membrane is easy to shift during cutting, burrs often appear on the cutting edge, and the quality of a final product is affected.
Disclosure of Invention
The invention aims to solve the defects in the prior art, the novel explosion-proof membrane is prepared by improving the formula and the production method, the membrane quality is obviously improved, the whole membrane product can be efficiently and quickly cut by utilizing the improved cutting device, the efficiency is improved, and the quality of the final product is ensured.
The technical scheme of the invention is as follows: the invention discloses a novel explosion-proof membrane, which comprises a release membrane, an OCA pressure-sensitive adhesive layer, a PET optical hardening membrane and a PP protective membrane which are sequentially arranged;
firstly, adding 0.2-1% of L-75 curing agent into OCA pressure-sensitive adhesive, uniformly stirring, coating the OCA pressure-sensitive adhesive on a PET optical hardening film, drying in a drying oven at 100 ℃ for 3-5 min, then coating a release film on the surface of the OCA pressure-sensitive adhesive layer, coating a PP protective film on the non-corona surface of the PET optical hardening film to complete the preparation of the explosion-proof film, and cutting the explosion-proof film by using an explosion-proof film cutting device after the preparation is completed;
the preparation method of the OCA pressure-sensitive adhesive comprises the following steps: mixing 10 parts of ethyl acrylate or butyl acrylate or isooctyl acrylate, 30 parts of methyl acrylate or vinyl acetate, 10 parts of acrylic acid, 35 parts of methyl acrylate, 11.2 parts of methyl methacrylate, 3.8 parts of hydroxyethyl methacrylate or hydroxyethyl acrylate, 52 parts of ethyl acetate solvent and 0.45 part of initiator uniformly, adding the mixture into a reaction container, stirring and heating to 80 +/-2 ℃ and keeping the temperature, adding 0.3 part of initiator into the remaining 40 parts of ethyl acetate solvent and uniformly mixing, dropwise adding the uniformly mixed solvent and initiator into the reaction container at a constant speed after keeping the temperature for 1 h, and stirring and keeping the temperature unchanged in the dropwise adding process; after reacting for a period of time, performing cooling treatment, discharging, and obtaining the solid content of the prepared pressure-sensitive adhesive: 25%, viscosity: 1000 cps.
The release film is PET with release performance, and the release force of the release film is 5-10 g.
The PP protective film is flat in film surface and 2-10 g in stripping force.
The specific structure of the explosion-proof membrane cutting device is as follows: be equipped with a tie-beam respectively in the both sides of base top, be equipped with vertical cutting knife tackle on one of them tie-beam, be equipped with horizontal cutting knife tackle on another tie-beam, be equipped with the movable chamber of the indent that extends along base length direction at the base middle part, be equipped with the workstation at the movable intracavity, be equipped with the translation track that extends along base length direction in the bottom of workstation, be equipped with drive arrangement on the lateral wall in movable chamber, the workstation can move on the track under drive arrangement's drive, both ends at the leading flank of base are equipped with a travel starting switch and reset switch respectively, in the front of workstation top surface, the rear end is equipped with a joint groove respectively and is used for connecting guiding orientation device, the rupture membrane is located guiding orientation device below and preliminary spacing on the bottom welt during the cutting.
Furthermore, the guiding and positioning device comprises two clamping plates and a blade guide groove plate, the bottoms of the clamping plates can be matched and clamped in corresponding clamping grooves on the workbench, the clamping plates are fixedly connected with the workbench through bolts after being clamped in the clamping grooves, the main body part of the blade guide groove plate is formed by interweaving a plurality of transverse blade guide grooves and a plurality of longitudinal blade guide grooves, edge part of each guide groove is provided with a sealing edge connecting block, the outer sides of the sealing edge connecting blocks at the front side and the rear side of the blade guide groove plate are provided with sliding blocks, longitudinal sliding grooves are respectively arranged at the positions corresponding to the sliding blocks on the inner side surface of the clamping plate, sliding rails extending along the height direction of the sliding grooves are arranged on the inner side surface of the sliding grooves, the sliding blocks are connected on the sliding rails and can longitudinally slide along the sliding grooves, the top sealing parts and the bottoms of the sliding grooves run through the bottom surfaces of the, be equipped with the spring between the top surface of the top surface at the sliding block and the top surface of sliding tray, the spring is in compression state behind guiding orientation device and the workstation fixed connection, medial surface at the joint board of medial extremity sliding connection limit stop, limit stop's slip direction is perpendicular with the length extending direction of joint board, limit stop's medial surface under the initial condition is in same horizontal plane with the medial surface that corresponds the joint board of one side, two limit stop can further inwards slide in opposite directions, the joint integrated circuit board is hugged closely on the top surface of workstation in the back limit stop bottom surface of joint inslot.
And pressing sheets are respectively arranged at the bottom of the blade guide groove plate and at four corners of a cross intersection formed by interweaving the transverse blade guide grooves and the longitudinal blade guide grooves.
The two side ends of the two symmetrically arranged transverse blade guide grooves are respectively hinged with a rotatable lifting rod.
The two ends of the clamping plate are respectively provided with a threaded hole which longitudinally penetrates through the upper side surface and the lower side surface of the clamping plate, threaded connecting holes are formed in positions corresponding to the threaded holes in the clamping grooves, and bolts sequentially penetrate through the threaded holes in the clamping plate and the threaded connecting holes in the corresponding clamping grooves to connect and fix the clamping plate and the clamping grooves.
The width of bottom welt suits with the distance size between two joint grooves, and the length of bottom welt suits with the length of joint board, and the four corners position on the welt of bottom is equipped with rupture membrane bight dog respectively, and the rupture membrane can match to be placed in the space that four dogs enclose and close.
The longitudinal cutting knife group comprises a hydraulic cylinder, a connecting plate, a blade fixing shaft and a longitudinal cutting blade, the hydraulic cylinder is fixedly connected on the connecting beam, the center position of the top of the connecting plate is fixedly connected with a piston rod of the hydraulic cylinder, two ends of the connecting plate are connecting surfaces of the blade fixing shaft, a fixed shaft connecting hole which is matched with the diameter of the blade fixed shaft is respectively arranged on the connecting surface, one end of the blade fixed shaft is provided with a limiting ring, the other end of the blade fixed shaft is provided with a threaded connecting section, one end of the blade fixed shaft is limited by the limiting ring to move, a nut is in threaded connection with the threaded connecting section to lock the position of the other end of the blade fixed shaft, the top of the longitudinal cutting blade is sleeved on the blade fixing shaft in a matching mode, the blades are fixed in a spaced mode through the spacing ring sleeves, the spacing ring sleeves are sleeved on the blade fixing shaft in a matching mode, and the position of the longitudinal cutting blade corresponds to the position of the longitudinal blade guide groove one to one.
The transverse cutting knife group comprises a second hydraulic cylinder, a second connecting plate, a second blade fixing shaft and a transverse cutting blade, the second hydraulic cylinder is fixedly connected to the connecting beam, the center of the top of the second connecting plate is fixedly connected with a piston rod of the second hydraulic cylinder, two ends of the second connecting plate are connecting surfaces of the second blade fixing shaft, a fixed shaft connecting hole which is matched with the diameter of the blade fixed shaft is respectively arranged on the connecting surface, one end of the second blade fixing shaft is provided with a second limiting ring, the other end of the second blade fixing shaft is provided with a threaded connection section, one end of the second blade fixing shaft is limited by the second limiting ring to move, the second nut and the threaded connection section are in threaded connection to lock the position of the other end of the second blade fixing shaft, the top of the transverse cutting blade is sleeved on the second blade fixing shaft in a matching mode, the blades are fixed at intervals through second separating ring sleeves, the second separating ring sleeves are sleeved on the second blade fixing shaft in a matching mode, and the positions of the transverse cutting blade correspond to the positions of the transverse blade guide grooves one by one.
The invention has the beneficial effects that:
1. the explosion-proof membrane disclosed by the invention has the advantages of simple structure, high quality, large stripping force, high-strength explosion-proof function and low possibility of being broken;
2. the explosion-proof membrane prepared by the invention does not have orange peel lines after bonding and bubble removal, and the visual effect is not influenced;
3. the high-transparency PET film and the PP film are reasonably selected as the base material layer, the crystallinity is high, the repairability is strong, the scratch resistance is high, the heat shrinkage rate is low, and the wrinkles cannot shrink due to heating when the high-transparency PET film and the PP film are used;
4. the OCA pressure-sensitive adhesive prepared by the invention has very small initial viscosity but large stripping force for bonding glass, and the colloid is hard by controlling the vitrification temperature, so that the phenomenon of unevenness caused by pressure injury on a roll sample can be prevented;
5. the cutting device for the explosion-proof membrane disclosed by the invention is simple in structure and convenient to operate, the whole explosion-proof membrane can be quickly and efficiently cut only by matching two workers to carry out simple flow operation, the edge of the cut explosion-proof membrane is free of burrs, the quality of a final product is high, and the cutting device has a large market application popularization value.
Drawings
FIG. 1 is a schematic diagram of a novel rupture disk made in accordance with the present invention;
FIG. 2 is a summary of peel force test data obtained in the examples;
FIG. 3 is a schematic front view of the rupture disk cutting apparatus of the present disclosure;
FIG. 4 is a schematic left side view of the rupture disk cutting apparatus of the present disclosure;
FIG. 5 is a schematic right-view illustration of a rupture disk cutting apparatus of the present disclosure;
FIG. 6 is a schematic top view of a table of the disclosed rupture disk cutting apparatus;
FIG. 7 is a schematic top view of the disclosed guiding and positioning device;
FIG. 8 is a cross-sectional view of the clamping plate of FIG. 6 taken along the line A-A;
FIG. 9 is a cross-sectional view taken along line B-B of FIG. 6;
FIG. 10 is a schematic view of the attachment of the disclosed bottom liner to the rupture disk;
FIG. 11 is a schematic top view of the table after the rupture disk has been positioned by the guide positioning device.
Wherein, the adhesive comprises 01-release film, 02-OCA pressure sensitive adhesive layer, 03-PET optical hardening film and 04-PP protective film;
1-base, 2-connecting beam, 3-longitudinal cutting knife group, 4-transverse cutting knife group, 5-movable cavity, 6-workbench, 7-translation track, 8-driving device, 9-clamping groove, 10-guiding and positioning device, 11-explosion-proof membrane, 12-bottom lining plate;
31-a hydraulic cylinder, 32-a connecting plate, 33-a blade fixing shaft, 34-a longitudinal cutting blade, 35-a limiting ring, 36-a nut and 37-a blocking ring sleeve;
41-a second hydraulic cylinder, 42-a second connecting plate, 43-a second blade fixing shaft, 44-a transverse cutting blade, 45-a second limiting ring, 46-a second nut, 47-a second blocking ring sleeve;
91-threaded connection holes;
101-a clamping plate, 102-a blade guide groove plate;
121-rupture membrane corner stop blocks;
1011-sliding groove, 1012-spring, 1013-threaded hole, 1014-limit stop;
1021-transverse blade guide groove, 1022-longitudinal blade guide groove, 1023-edge sealing connecting block, 1024-sliding block, 1025-pressing sheet, 1026-lifting rod.
Detailed Description
The following examples further illustrate the present invention but are not to be construed as limiting the invention. Modifications and substitutions to methods, procedures, or conditions of the invention may be made without departing from the spirit of the invention.
Firstly, the method comprises the following steps: preparation of OCA pressure sensitive adhesive
Mixing 10 parts of ethyl acrylate or butyl acrylate or isooctyl acrylate, 30 parts of methyl acrylate or vinyl acetate, 35 parts of methyl acrylate, 11.2 parts of methyl methacrylate, 3.8 parts of hydroxyethyl methacrylate or hydroxyethyl acrylate, 52 parts of ethyl acetate solvent and 0.45 part of initiator uniformly, adding the mixture into a reaction container, stirring and heating to 80 ℃ and keeping the temperature, adding 0.3 part of initiator into the remaining 40 parts of ethyl acetate solvent and uniformly mixing, dropwise adding the uniformly mixed solvent and initiator into the reaction container at a constant speed within 1 h, and stirring and keeping the temperature unchanged in the dropwise adding process; after reacting for a period of time, performing cooling treatment, discharging, and obtaining the solid content of the prepared pressure-sensitive adhesive: 25%, viscosity: 1000 cps.
The pressure-sensitive adhesive prepared by the invention is transparent, the crosslinking in the formula is enough, the initial adhesion of the OCA glue body can be ensured to be small, the amount of acrylic acid is sufficient, the peeling force to glass can be ensured to be large, the viscosity of the glue is controlled to be 25%, the viscosity of 1000cps can improve the problem of coating lines, and the appearance phenomenon is improved.
The glass transition temperature Tg has great influence on the performance of the pressure-sensitive adhesive, and the pressure-sensitive adhesives with different Tg have increased bulk viscosity and flat co-location elastic modulus at room temperature, reduced peel strength and loss of pressure sensitivity. The data for adjusting Tg is to synthesize glue again by adjusting the composition ratio of the monomers. For example: compared with butyl acrylate 65 parts and methyl acrylate 25 parts and butyl acrylate 60 parts and methyl acrylate 30 parts, the initial adhesion of the glue synthesized by the latter is smaller than that of the former, the former is softer, and the latter is harder.
The inventor obtains the improved pressure-sensitive adhesive synthesis formula on the basis of creative work, and selects a monomer with a proper fraction to adjust Tg to a proper range, so that the synthesized adhesive is hard, and further, the phenomenon of unevenness caused by pressure injury on a roll sample is prevented.
Secondly, preparing an explosion-proof membrane
Adding 0.2-1% of L-75 curing agent into the OCA pressure-sensitive adhesive, uniformly stirring, coating the OCA pressure-sensitive adhesive on a PET optical hardening film with the thickness of 50 microns, drying in an oven at 100 ℃ for 3-5 min, then coating a PET release film with the thickness of 100 microns and the release force of 5 g on the surface of the OCA pressure-sensitive adhesive layer, and coating a PP protective film on the non-corona surface of the PET optical hardening film to finish the preparation of the explosion-proof film.
The PET optical hardening film is selected from: the PET film is a packaging film with relatively comprehensive performance. The transparency is good and the gloss is good; has good air tightness. The PET film has excellent mechanical performance, the toughness is the best of all thermoplastic plastics, and the tensile strength and the impact strength are much higher than those of the common films; and the product has good stiffness and stable size, and is suitable for secondary processing of printing, paper bags and the like. The PET film also has excellent heat resistance, cold resistance and good chemical resistance and oil resistance. But it is not resistant to strong bases; it is very electrostatic and therefore it should be noted when packing powdered products.
When selecting PET optics hardening film, need its outward appearance of management and control, guarantee not have rainbow line, fish tail, lines, crushing phenomenon.
Selecting a PET release film: the release film refers to a film having a surface with separability, and the release film is not sticky or slightly sticky after being contacted with a specific material under limited conditions. The main functions are isolation, filling, protection and easy stripping. The release force of the release film is the force required when the adhesive surface of the non-setting adhesive backing paper is separated from the surface paper, because the release film is covered on the OCA, the release film is required to be peeled and then pasted on the glass, if the release force is larger, the phenomenon of non-peeling can occur when the machine is peeled, the release force is too small, and the OCA cannot be protected, in the product, the release film with the release force of 5-10 g needs to be found, and the release film with the release force in the range of not only can ensure the machine to be peeled, but also can ensure the cleanness of the OCA.
Selecting a PP protective film: the PP-based protective film used in the existing market has poor temperature resistance of an adhesive layer material, has good adhesion at 50-60 ℃, but has too high adhesive force, and is easy to cause the phenomenon of poor bubble removal. When the PET optical hardening film is formed by plastic suction, the adhesive force is increased too much, the protective film is not easy to tear off from the PET optical hardening film after forming, the PET optical hardening film and the protective film are stuck, and the protective film is easy to tear; and the temperature resistance of the protective film material is poor, the protective film is easy to be heated and deformed, and marks can be remained on the PET optical hardening film, so that the use of the PET film is influenced.
In the product, a PP protective film with 2-10 g of peeling force and flat film surface needs to be found. The PP protective film in the peeling force range can realize easy peeling, the problem that the peeling force is too large and unevenness of the PP film is left on the film in a roll sample is avoided, and if the peeling force is less than the range, the PP protective film cannot play a role in protection.
Third, relevant Performance test
1. And (3) testing the peeling force:
the whole explosion-proof membrane is cut into 25 mm wide and 100 mm long, then is attached to glass or a steel plate, and after defoaming in a pressure-free 30 min defoaming machine at 70 ℃, the stripping force is measured to be 2000 +/-300 g. Specific test data are shown in fig. 2.
2. And (3) testing initial adhesion:
the initial adhesion is the adhesion of the pressure-sensitive adhesive tape to an object when the adhesive surface of the tape is briefly in contact with the object with a slight pressure, and is generally evaluated by the test principle of the rolling ball plane stop method, in which a steel ball is rolled across the adhesive surface of the tape lying flat on a sloping plate, and the initial adhesion is evaluated according to the maximum size of the steel ball (steel ball number 1 ~ 33) to which the adhesive surface of a given length can adhere.
The initial adhesion of the product is found to be less than 5 steel balls after initial adhesion test, which shows that the product has lower initial adhesion on the basis of larger peeling force of the bonded glass.
3. And sticking the explosion-proof film on a flat black glass plate, and observing the appearance without orange peel lines after bubble discharge.
Fourthly, cutting of the explosion-proof film
And the prepared integral explosion-proof membrane is cut according to the corresponding parameters by using an explosion-proof membrane cutting device.
The structure of the rupture membrane cutting device refers to fig. 3-11, and the specific structure is as follows: two sides above the base 1 are respectively provided with a connecting beam 2, the connecting beam 2 on the right side is provided with a longitudinal cutting knife group 3, the connecting beam 2 on the left side is provided with a transverse cutting knife group 4, an inward concave movable cavity 5 extending along the length direction of the base 1 is arranged in the middle of the base 1, a workbench 6 is arranged in the movable cavity 5, a translation track 7 extending along the length direction of the base 1 is arranged at the bottom of the workbench 6, a driving device 8 is arranged on the side wall of the movable cavity 5, the workbench 6 can move on the translation track 7 under the driving of the driving device 5, the right end of the front side surface of the base 1 is provided with a stroke starting switch, the left end is provided with a reset switch, the front end and the rear end of the top surface of the worktable 6 are respectively provided with an embedded clamping groove 9 extending along the length direction of the base 1 for connecting a guiding and positioning device 10, the rupture disk 11 is located below the guiding and positioning device 10 and is initially limited on the bottom lining plate 12.
The guiding and positioning device 10 comprises two clamping plates 101 and a blade guiding groove plate 102, the bottoms of the clamping plates 101 can be matched with the clamping grooves 9 corresponding to the workbench 6 in a clamping mode, and the clamping plates 101 are fixedly connected with the workbench 6 through bolts after being clamped in the clamping grooves 9.
The main body of the blade guide slot plate 102 is formed by three vertically-penetrating transverse blade guide slots 1021 and four longitudinal blade guide slots 1022 in an interlaced manner, the specific structure of the guide positioning device 10 disclosed in this embodiment is a set of specific structure of a mold, and only for better description of the contents of the embodiment, the number of the transverse and longitudinal guide slots is determined according to cutting parameters, and the setting of the specific number should not be considered as a limitation to the technical scheme, and changes made on this basis are included in the protection scope of the present invention. Be equipped with the banding connecting block 1023 in the edge part of guide way and be used for the banding shaping of frid, the outside of the banding connecting block 1023 of both sides is equipped with sliding block 1024 around blade guide frid 102, and the position that corresponds with sliding block 1024 is equipped with fore-and-aft sliding tray 1011 on the medial surface of joint board 101, is equipped with the slip track that extends along its direction of height on the medial surface of sliding tray 1011, sliding block 1024 connects on the slip track and can follow the longitudinal slide of sliding tray 1011, the bottom surface that joint board 101 was link up to the top of sliding tray 1011, is equipped with spring 1012 between the top surface of sliding block 1024 and the top surface of sliding tray 1011, and direction positioner 10 is in the compression state with workstation 6 fixed connection back spring 1012.
The limit stops 1014 are slidably connected to the inner side end of the clamping plate 101, the sliding direction of the limit stops 1014 is perpendicular to the length extending direction of the clamping plate 101, as shown in fig. 7, the inner side surfaces of the limit stops 1014 in the initial state and the inner side surface of the clamping plate 101 on the corresponding side are on the same horizontal plane, as shown in fig. 11, the two limit stops 1014 can further slide inwards and oppositely, and the bottom surfaces of the limit stops 1014 cling to the top surface of the workbench 6 after the clamping plate 101 is clamped in the clamping groove 9.
And the pressing sheets 1025 are respectively arranged at the four corners of the intersection formed by interweaving the transverse blade guide grooves 1021 and the longitudinal blade guide grooves 1022 at the bottom of the blade guide groove plate 102, and can be used for modularly pressing the explosion-proof film in a cutting state, so that the movement of the explosion-proof film in the cutting process can be further limited, and the quality of a finished product is effectively guaranteed.
The two ends of the two symmetrically arranged transverse blade guide grooves 1021 are respectively hinged with a rotatable lifting rod 1026, and the two symmetrically arranged lifting rods 1021 can ensure that the guide positioning device 10 can move upwards integrally when lifting, so that the operation effect is prevented from being influenced by the condition that one end is inclined.
Two ends of the clamping plate 101 are respectively provided with a threaded hole 1013 longitudinally penetrating through the upper side surface and the lower side surface of the clamping plate 101, a threaded connection hole 91 is arranged in the clamping groove 9 at a position corresponding to the threaded hole 1013, and a bolt sequentially penetrates through the threaded hole 1013 on the clamping plate 101 and the corresponding threaded connection hole 91 on the clamping groove 9 to connect and fix the clamping plate 101 and the clamping groove 9.
The width of bottom welt 12 suits with the distance size between two joint grooves 9, and the length of bottom welt 12 suits with the length of joint board 101, and the four corners position on bottom welt 12 is equipped with rupture membrane bight dog 121 respectively, and rupture membrane 11 can match and place in the space that four dogs enclose and close.
The longitudinal cutting knife group 3 comprises a hydraulic cylinder 31, a connecting plate 32, a blade fixing shaft 33 and longitudinal cutting blades 34, the hydraulic cylinder 31 is fixedly connected to the connecting beam 2, the top center position of the connecting plate 32 is fixedly connected with a piston rod of the hydraulic cylinder 31, two ends of the connecting plate 32 are connecting surfaces of the blade fixing shaft 33, a fixing shaft connecting hole which is matched with the diameter of the blade fixing shaft 33 is respectively arranged on the connecting surfaces, one end of the blade fixing shaft 33 is provided with a limiting ring 35, the other end of the blade fixing shaft 33 is provided with a threaded connecting section, one end with the threaded connecting section sequentially penetrates through the two fixing shaft connecting holes, one end of the blade fixing shaft 33 is limited by the limiting ring 35 to move, a nut 36 is in threaded connection with the threaded connecting section to lock the position of the other end of the blade fixing shaft 33, the top of the longitudinal cutting blades 34, the blocking ring sleeves 37 are matched and sleeved on the blade fixing shaft 33, and the positions of the longitudinal cutting blades 34 correspond to the positions of the longitudinal blade guide grooves 1022 one by one.
During assembly, the blade fixing shaft end with the threaded connection section penetrates through a fixing shaft connecting hole in one connecting plate 32, then the blocking ring sleeve 37 and the longitudinal cutting blade 34 are sleeved on the shaft in a penetrating mode to be assembled and fixed, the end penetrates through a fixing shaft connecting hole in the other connecting surface, the shaft end with the limiting ring 35 is limited by the limiting ring 35 to move, the longitudinal cutting blade 34 is leveled, a nut 36 is assembled at the outer end of the threaded connection section to be fixed finally, the stability of blade connection is further guaranteed, and the phenomenon that the cutting effect is influenced due to the fact that the blade moves in the cutting process is avoided. In the embodiment in which the barrier ring 37 and the guiding and positioning device 10 are customized in a set, the parameters of the barrier ring 37 are also designed specifically according to the cutting parameters of the rupture disk, and the specific size is determined according to the cutting parameters. The modular blade package assembly who discloses in this embodiment also is convenient for carry out the change of blade when the blade uses the circumstances such as blade dulling, or cutting edge damage for a long time to appear, and the operation is more convenient.
The transverse cutting knife group 4 comprises a second hydraulic cylinder 41, a second connecting plate 42, a second blade fixing shaft 43 and a transverse cutting blade 44, the second hydraulic cylinder 41 is fixedly connected to the connecting beam 2, the center of the top of the second connecting plate 42 is fixedly connected with a piston rod of the second hydraulic cylinder 41, two ends of the second connecting plate 42 are connecting surfaces of the second blade fixing shaft 43, a fixing shaft connecting hole which is matched with the diameter of the second blade fixing shaft 43 is respectively arranged on the connecting surfaces, a second limit ring 45 is arranged at one end of the second blade fixing shaft 43, a threaded connecting section is arranged at the other end of the second blade fixing shaft 43, one end with the threaded connecting section sequentially penetrates through the two fixing shaft connecting holes, one end of the second blade fixing shaft 43 is limited by the second limit ring 45 to move, a second nut 46 is in threaded connection with the threaded connecting section to lock the position of the other end of, the blades are fixed at intervals by a second blocking ring sleeve 47, the second blocking ring sleeve 47 is sleeved on the second blade fixing shaft 43 in a matching mode, and the positions of the transverse cutting blades 4 correspond to the positions of the transverse blade guide grooves 1021 one by one.
The assembly process of the transverse cutter set 4 is the same as that of the longitudinal cutter set 3, and the two cutter sets are different mainly in the arrangement direction of the blades.
The cutting process comprises the following steps:
when cutting operation is carried out, two workers respectively stand at the front side positions of the two ends of the base 1, the worker standing at one side of the stroke starting switch is responsible for feeding the whole explosion-proof membrane, the worker standing at one side of the reset switch is responsible for blanking the cut explosion-proof membrane with the standard size, and the initial position of the workbench 6 is arranged at the right end of the base 1;
before cutting, the guiding and positioning device 10 is fixedly connected with the clamping groove 9, at the moment, the spring 1012 is in a compressed state, the blade guiding groove plate 102 is tightly pressed on the top surface of the workbench 6, then the two limit stoppers 1014 slide inwards and oppositely, a worker in charge of feeding clamps the whole explosion-proof membrane in a space surrounded by the four explosion-proof membrane corner stoppers 121 on the bottom lining plate 12 to complete the primary positioning of the explosion-proof membrane, then the worker rotates the two lifting rods 1026 on the guiding and positioning device 10 to the top of the device, the worker grasps the two lifting rods 1026 simultaneously to lift the guiding and positioning device 10 upwards to leave a space between the bottom of the guiding and positioning device and the top surface of the workbench 6 for the insertion of the bottom lining plate 12, the bottom lining plate 12 is inserted from the outer side end of the guiding and positioning device 10 until the bottom lining plate 12 is limited by the limit stopper 1014 at the inner side end to move so as to complete the positioning of the bottom lining plate 12, then, the worker puts down the guiding and positioning device 10 to press against the explosion-proof membrane 11, and rotates the lifting rod 1026 to the side surface of the guiding and positioning device 10 to avoid the blade guide groove, so as to prevent the blade guide groove from influencing the cutting action of the subsequent cutting knife set, and thus all the previous positioning and mounting work of the explosion-proof membrane 11 is completed.
Then, the worker at the feeding end presses down the stroke starting switch, the workbench 6 moves towards the other end of the base 1 along the translation track 7, the control of the movement stop and the stop time of the stop stage are preset on the master controller, when the workbench 6 passes through the bottom of the longitudinal cutting knife group 3, the workbench stops moving for 30 s, during the period, the piston rod of the hydraulic cylinder 31 extends out of the control connecting plate 32 and presses down to drive the blade fixing shaft 33 to press down, the longitudinal cutting blade 34 at the bottom of the longitudinal cutting blade passes through the corresponding longitudinal blade guide groove 1022 to longitudinally cut the explosion-proof membrane 11, after the cutting is finished, the piston rod of the hydraulic cylinder 31 retracts to drive the longitudinal cutting blade 34 to ascend, the workbench 6 continues moving, the workbench stops moving for 30 s when moving to the bottom of the transverse cutting knife group 4, during the period, the piston rod of the hydraulic cylinder two 41 extends out of the control connecting plate two 42 and presses down to drive the blade, the transverse cutting blade 44 at the bottom of the cutting device penetrates through the corresponding transverse blade guide groove 1021 to transversely cut the explosion-proof membrane 11, and after cutting, the piston rod of the second hydraulic cylinder 41 retracts to drive the transverse cutting blade 1021 to ascend, so that all cutting work of the explosion-proof membrane 11 in the transverse and longitudinal directions is completed.
Workstation 6 continues to move to the staff position of being responsible for the unloading, this staff is at first outwards slided limit stop 1014 to the dog medial surface and is parallel with the medial surface of the joint board 101 that corresponds one side in order to guarantee not to influence the unloading of bottom welt 12, then rotate lifting rod 1026 to guiding orientation device 10 top, grasp two lifting rod 1026 simultaneously and upwards lift guiding orientation device 10 and draw in order to leave the space between its bottom and workstation 6 top surface and supply bottom welt 12 to take out, lower guiding orientation device 10 after taking out bottom welt 12 from workstation 6 left side, the staff presses reset switch, workstation 6 just moves back to the staff department of being responsible for the material loading in order to carry out next endless cutting operation.
And finally, the worker responsible for blanking is responsible for collecting the cut anti-explosion membrane on the bottom lining plate 12, intensively sweeping the scraps on the lining plate into a scrap box for later centralized treatment, and intensively conveying the bottom lining plate 12 collected at the blanking end to the feeding end for reuse after a period of time.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. However, the above description is only an example of the present invention, the technical features of the present invention are not limited thereto, and any other embodiments that can be obtained by those skilled in the art without departing from the technical solution of the present invention should be covered by the claims of the present invention.

Claims (10)

1. A novel explosion-proof membrane is characterized by comprising a release membrane, an OCA pressure sensitive adhesive layer, a PET optical hardening membrane and a PP protective membrane which are sequentially arranged;
when the anti-explosion film is prepared, firstly, 0.2-1% of L-75 curing agent is added into OCA pressure-sensitive adhesive and uniformly stirred, the OCA pressure-sensitive adhesive is coated on a PET optical hardening film, the PET optical hardening film is dried in an oven at 100 ℃ for 3-5 min, then, a release film is coated on the surface of the OCA pressure-sensitive adhesive layer, a PP protective film is coated on the non-corona surface of the PET optical hardening film, the preparation of the anti-explosion film is completed, and the anti-explosion film is cut by using an anti-explosion film cutting device after the preparation is completed;
the preparation method of the OCA pressure-sensitive adhesive comprises the following steps: mixing 10 parts of ethyl acrylate or butyl acrylate or isooctyl acrylate, 30 parts of methyl acrylate or vinyl acetate, 10 parts of acrylic acid, 35 parts of methyl acrylate, 11.2 parts of methyl methacrylate, 3.8 parts of hydroxyethyl methacrylate or hydroxyethyl acrylate, 52 parts of ethyl acetate solvent and 0.45 part of initiator uniformly, adding the mixture into a reaction container, stirring and heating to 80 +/-2 ℃ and keeping the temperature, adding 0.3 part of initiator into the remaining 40 parts of ethyl acetate solvent and uniformly mixing, dropwise adding the uniformly mixed solvent and initiator into the reaction container at a constant speed after keeping the temperature for 1 h, and stirring and keeping the temperature unchanged in the dropwise adding process; after reacting for a period of time, performing cooling treatment, discharging, and obtaining the solid content of the prepared pressure-sensitive adhesive: 25%, viscosity: 1000 cps.
2. The novel explosion-proof membrane as claimed in claim 1, wherein the release membrane is PET with release property, and the release force of the release membrane is 5-10 g.
3. The novel explosion-proof membrane as claimed in claim 1, wherein the membrane surface of the PP protective membrane is flat and the stripping force is 2-10 g.
4. The novel rupture disk as claimed in claim 1, wherein the specific structure of the rupture disk cutting device is as follows: be equipped with a tie-beam respectively in the both sides of base top, be equipped with vertical cutting knife tackle on one of them tie-beam, be equipped with horizontal cutting knife tackle on another tie-beam, be equipped with the movable chamber of the indent that extends along base length direction at the base middle part, be equipped with the workstation at the movable intracavity, be equipped with the translation track that extends along base length direction in the bottom of workstation, be equipped with drive arrangement on the lateral wall in movable chamber, the workstation can move on the track under drive arrangement's drive, both ends at the leading flank of base are equipped with a stroke starting switch and reset switch respectively, in the front of workstation top surface, the rear end is equipped with a joint groove respectively and is used for connecting guiding orientation device, when the assembly is accomplished, the rupture membrane is located guiding orientation device below and tentatively spacing on the bottom welt.
5. The novel explosion-proof membrane as claimed in claim 4, wherein the guiding and positioning device comprises two clamping plates and a blade guiding groove plate, the bottoms of the clamping plates can be clamped in corresponding clamping grooves on the workbench in a matching manner, and the clamping plates are fixedly connected with the workbench through bolts after being clamped in the clamping grooves; the main body part of the blade guide groove plate is formed by interweaving a plurality of transverse blade guide grooves and a plurality of longitudinal blade guide grooves, edge sealing connecting blocks are arranged at the edge parts of the guide grooves, sliding blocks are arranged on the outer sides of the edge sealing connecting blocks on the front side and the rear side of the blade guide groove plate, longitudinal sliding grooves are respectively arranged at the positions, corresponding to the sliding blocks, on the inner side surface of the clamping plate, sliding rails extending along the height direction of the sliding grooves are arranged on the inner side surface of the sliding grooves, the sliding blocks are connected on the sliding rails and can slide longitudinally along the sliding grooves, the top sealing parts and the bottom parts of the sliding grooves penetrate through the bottom surface of the clamping plate, springs are arranged between the top surfaces of the sliding blocks and the top surfaces of the sliding grooves, and the springs are in; the limiting stop is connected to the inner side end of the clamping plate in a sliding mode, the sliding direction of the limiting stop is perpendicular to the length extending direction of the clamping plate, the inner side face of the limiting stop in the initial state and the inner side face of the clamping plate corresponding to one side are located on the same horizontal plane, the two limiting stop can further slide inwards in the opposite direction, and the bottom face of the limiting stop is tightly attached to the top face of the workbench after the clamping plate is connected to the clamping groove.
6. A novel rupture disk as claimed in claim 5, wherein a pressing piece is provided at the bottom of the blade guide slot plate at each of the four corners of the intersection formed by the interweaving of the transverse blade guide slot and the longitudinal blade guide slot.
7. A novel rupture membrane as claimed in claim 6, wherein a rotatable lifting rod is hinged between the two side ends of the two symmetrically arranged transverse blade guide grooves.
8. The novel rupture disk as claimed in claim 7, wherein the width of the bottom lining plate is adapted to the distance between the two clamping grooves, the length of the bottom lining plate is adapted to the length of the clamping plate, the four corners of the bottom lining plate are respectively provided with the corner stops of the rupture disk, and the rupture disk can be placed in the space enclosed by the four stops in a matching manner.
9. The novel rupture disk as claimed in claim 8, wherein the longitudinal cutting blade set comprises a hydraulic cylinder, a connecting plate, a blade fixing shaft and a longitudinal cutting blade, the hydraulic cylinder is fixedly connected to the connecting beam, the top center of the connecting plate is fixedly connected to the piston rod of the hydraulic cylinder, the two ends of the connecting plate are the connecting surfaces of the blade fixing shaft, a fixing shaft connecting hole corresponding to the diameter of the blade fixing shaft is respectively formed on the connecting surfaces, a limiting ring is formed at one end of the blade fixing shaft, a threaded connecting section is formed at the other end of the blade fixing shaft, one end of the blade fixing shaft is limited by the limiting ring, a nut is in threaded connection with the threaded connecting section to lock the position of the other end of the blade fixing shaft, the top of the longitudinal cutting blade is matched and sleeved on the blade fixing shaft, the blades are fixed in a spaced manner by a, the positions of the longitudinal cutting blades correspond to the positions of the longitudinal blade guide grooves one by one.
10. The novel rupture disk as claimed in claim 9, wherein the transverse cutting knife assembly comprises a second hydraulic cylinder, a second connecting plate, a second blade fixing shaft and a transverse cutting blade, the second hydraulic cylinder is fixedly connected to the connecting beam, the top center of the second connecting plate is fixedly connected to the piston rod of the second hydraulic cylinder, the two ends of the second connecting plate are the connecting surfaces of the second blade fixing shaft, a fixing shaft connecting hole corresponding to the diameter of the second blade fixing shaft is respectively formed on the connecting surfaces, a second limiting ring is arranged at one end of the second blade fixing shaft, a threaded connecting section is arranged at the other end of the second blade fixing shaft, one end of the second blade fixing shaft is limited by the second limiting ring to move, a second nut is in threaded connection with the threaded connecting section to lock the other end of the second blade fixing shaft, the top of the transverse cutting blade is matched and sleeved on the second blade fixing shaft, and the second blocking ring sleeve is sleeved on the second blade fixing shaft in a matching manner, and the positions of the transverse cutting blades correspond to the positions of the transverse blade guide grooves one to one.
CN201910922146.4A 2019-09-27 2019-09-27 Novel rupture membrane Active CN110698999B (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1088318A (en) * 1976-08-13 1980-10-28 Henry D. Brakke Cutting apparatus
CN104927693A (en) * 2015-06-12 2015-09-23 江阴通利光电科技有限公司 Preparation method for optical-grade PE protective film
CN106244037A (en) * 2016-07-28 2016-12-21 东莞市纳利光学材料有限公司 Rupture pressure disc and preparation method in a kind of screen
CN205997032U (en) * 2016-08-05 2017-03-08 深圳市鑫宏宇包装制品有限公司 A kind of cross cutting rupture disk device
CN106590484A (en) * 2016-11-24 2017-04-26 南京汇鑫光电材料有限公司 Acrylate OCA optical adhesive film, and preparation method and application thereof
CN109052925A (en) * 2018-07-20 2018-12-21 东莞市天合机电开发有限公司 A kind of cutter device of discarded implosion guard
CN109095762A (en) * 2018-07-20 2018-12-28 东莞市天合机电开发有限公司 A kind of processing equipment of discarded implosion guard
CN109575835A (en) * 2018-11-02 2019-04-05 襄阳三沃航天薄膜材料有限公司 A kind of false proof aqueous pressure-sensitive adhesive protective film and preparation method thereof
CN109940675A (en) * 2017-12-21 2019-06-28 江敏 A kind of cutter device of rupture pressure disc

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1088318A (en) * 1976-08-13 1980-10-28 Henry D. Brakke Cutting apparatus
CN104927693A (en) * 2015-06-12 2015-09-23 江阴通利光电科技有限公司 Preparation method for optical-grade PE protective film
CN106244037A (en) * 2016-07-28 2016-12-21 东莞市纳利光学材料有限公司 Rupture pressure disc and preparation method in a kind of screen
CN205997032U (en) * 2016-08-05 2017-03-08 深圳市鑫宏宇包装制品有限公司 A kind of cross cutting rupture disk device
CN106590484A (en) * 2016-11-24 2017-04-26 南京汇鑫光电材料有限公司 Acrylate OCA optical adhesive film, and preparation method and application thereof
CN109940675A (en) * 2017-12-21 2019-06-28 江敏 A kind of cutter device of rupture pressure disc
CN109052925A (en) * 2018-07-20 2018-12-21 东莞市天合机电开发有限公司 A kind of cutter device of discarded implosion guard
CN109095762A (en) * 2018-07-20 2018-12-28 东莞市天合机电开发有限公司 A kind of processing equipment of discarded implosion guard
CN109575835A (en) * 2018-11-02 2019-04-05 襄阳三沃航天薄膜材料有限公司 A kind of false proof aqueous pressure-sensitive adhesive protective film and preparation method thereof

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