CN106493961A - The processing method of high leakproofness polypropylene seal bar and its sealing strip - Google Patents
The processing method of high leakproofness polypropylene seal bar and its sealing strip Download PDFInfo
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- CN106493961A CN106493961A CN201611177557.8A CN201611177557A CN106493961A CN 106493961 A CN106493961 A CN 106493961A CN 201611177557 A CN201611177557 A CN 201611177557A CN 106493961 A CN106493961 A CN 106493961A
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- bar
- adhesive tape
- polypropylene
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Classifications
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
- B29C65/5057—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like positioned between the surfaces to be joined
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
- B29C65/5064—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like of particular form, e.g. being C-shaped, T-shaped
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/108—Special methods for making a non-metallic packing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
-
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/14—Copolymers of polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
- B29L2031/265—Packings, Gaskets
Abstract
The invention provides a kind of processing method of high leakproofness polypropylene seal bar, belongs to field of mechanical technique.It is not high that it solves the problems, such as that prior art has stability.The processing method of this high leakproofness polypropylene seal bar is comprised the following steps：A, get the raw materials ready；B, chimeric；C, compacting；D, torsion.The processing method of high leakproofness polypropylene seal bar is easy to implement and sealing strip stability that process is high.
Description
Technical field
The invention belongs to field of mechanical technique, is related to a kind of processing method of high leakproofness polypropylene seal bar and its sealing
Bar.
Background technology
Polypropylene, is a kind of obtained thermoplastic resin by propylene polymerization.It is divided into isotactic poly- third by methyl arrangement position
Alkene (isotactic polypropylene), random polypropylene (atactic polypropylene) and syndiotactic polypropylene
Three kinds of (syndiotactic polypropylene).
Methyl is arranged in the same side of molecular backbone and claims isotactic polypropylene, if the chaotic molecular backbone that is arranged in of methyl
Both sides claim random polypropylene, when the both sides that methyl is arranged alternately in molecular backbone claim syndiotactic polypropylene.It is poly- that general industry is produced
In allyl resin, isotactic structural content is about 95%, and remaining is random or syndiotactic polypropylene.Industrial products are main with isotactic thing
Composition.Including polypropylene copolymer also including propylene with a small amount of ethylene.Usually translucent colorless solid, odorless are nontoxic.By
In compound with regular structure highly crystallized, therefore fusing point may be up to 167 DEG C.Heat-resisting, corrosion-resistant, product can be which projects with vapor sterilization
Advantage.Density is little, is most light general-purpose plastics.Have the disadvantage that low-temperature impact resistance is poor, be easier to aging, but can be given by modification respectively
To overcome.
The PP materials of copolymer type have relatively low heat distortion temperature (100 DEG C), low transparency, low-luster, low rigidity, but
It is that the impact strength for having higher impact strength, PP increases with the increase of ethylene contents.The vicat softening temperature of PP is
150℃.Due to degree of crystallinity higher, the surface rigidity of this material and anti-scratch characteristic fine.There is no environment stress cracking in PP
Problem.
The melt mass flow rate (MFR) of PP is generally 1～100.The PP materials impact property of low MFR preferably but prolongs
Exhibition intensity is relatively low.For the material of identical MFR, the shock strength of copoly type is higher than homopolymerization type.Due to crystallization, the contraction of PP
Rate is at a relatively high, and generally 1.6～2.0%.
Polyacrylic degree of crystallinity is high, compound with regular structure, thus with excellent mechanical property.Mechanical Properties of PP absolute
Value is higher than polyethylene, but still falls within low kind in a plastic material, and its tensile strength only can reach 30MPa or slightly higher water
Flat.There is the larger polypropylene of isotactic index higher tensile strength, but the raising with isotactic index, the impact strength of material to have
Declined, but no longer changed after dropping to a certain numerical value.
Temperature and loading speed are very big to polyacrylic Toughness.When temperature is higher than vitrification point, impact failure
It is in ductile rupture, less than vitrification point in brittle fracture, and impact value significantly declines.Loading speed is improved, can be made
Ductile rupture rises to the temperature that brittle fracture changes.Polypropylene has excellent flexural fatigue resistance, and its product is at normal temperatures
Bent 106 times and do not damage.
But under room temperature and low temperature, due to the molecular structure regularity height of itself, so impact strength is poor.Polypropylene
Most prominent performance is exactly flexural fatigue resistance, is commonly called as polypropylene (PP).It is therefore possible to use polypropylene material makes sealing strip making
With.
But, existing polypropylene seal bar is usually single list structure, for than relatively large polypropylene seal
For bar, it is easily damaged in use.
Content of the invention
The present invention first purpose be for prior art exist the problems referred to above, there is provided one kind can improve its intensity and
The processing method of the high leakproofness polypropylene seal bar of sealing.
Second object of the present invention is to provide high leakproofness polypropylene seal bar prepared by above-mentioned processing method.
The purpose of first of the present invention can be realized by following technical proposal：
A kind of processing method of high leakproofness polypropylene seal bar, the method are comprised the following steps：
A, get the raw materials ready：The standby polypropylene original bar in strip of choosing, and have sticking adhesive tape, above-mentioned polypropylene original bar winding
At storing roller one, above-mentioned adhesive tape is wrapped at storing roller two；
B, chimeric：By traction piece by polypropylene original bar by the lasting pull-out of storing roller one, by another traction
By adhesive tape by the lasting pull-out of storing roller two, the quantity of above-mentioned storing roller one is two to part, two for being drawn out polypropylene original
It is in that another traction piece is drawn out during adhesive tape is persistently pulled out in duct-like feeding channel that bar simultaneously enters one
Adhesive tape is located at feeding channel end and adhesive tape and is located between two parallel polypropylene original bars, two root polypropylenes original bar and a glue
During bar is persistently pulled out, as the gap between two root polypropylenes original bar is slightly less than adhesive tape gap, therefore, above-mentioned two
Root polypropylene original bar and adhesive tape is preliminary links together, forms a crude green body；
C, compacting：Moving direction along polypropylene original bar and adhesive tape has two panels pressure in the form of sheets at feeding channel rear portion
Piece, forms a discharging gap for setting width between two tablettings, and the width of above-mentioned crude green body is slightly larger than discharging gap width, slightly
Base adhesive tape behind the gap that discharges is pressed between two root polypropylenes original bar, obtains semi-finished product sealing strip；
D, torsion：Apply external force to reverse semi-finished product sealing strip, semi-finished product sealing strip occur after helical deformation adhesive tape with
Two root polypropylenes original bar is fully contacted against stopping obtains the finished product sealing strip of stable connection after applying external force.
Crude green body is obtained after two root polypropylenes original bar and an adhesive tape are chimeric, now, polypropylene original bar and adhesive tape have connected
Together.
Polypropylene original bar can be made after compacting with the first one-step forming of adhesive tape.
The purpose of torsion is contacted with polypropylene original bar punishment for adhesive tape, is further ensured that its connective stability.
In the processing method of above-mentioned high leakproofness polypropylene seal bar, in feeding channel end in described step B
There is a platen in the form of annular discs, the edge of above-mentioned platen to be located at the center of feeding channel.
Adhesive tape is extruded by platen, so as to ensure that adhesive tape smoothly can be embedded between two root polypropylenes original bar.
In the processing method of above-mentioned high leakproofness polypropylene seal bar, described platen is connected to the rotating shaft of motor
On.
The platen of rotation can make adhesive tape more stable be connected to two root polypropylenes original bar between.
In the processing method of above-mentioned high leakproofness polypropylene seal bar, polypropylene original bar and adhesive tape in step A
Transporting velocity be 13 ms/min.
In the processing method of above-mentioned high leakproofness polypropylene seal bar, the rotating speed of the platen is 10 30 revs/min
Clock.
In the processing method of above-mentioned high leakproofness polypropylene seal bar, in step C, tabletting is connected in a frame
On, one end of the tabletting is connection end, and the other end is contact jaw, and above-mentioned connection end is connected with frame, connection end and contact jaw
Between there is the guide part that seamlessly transits, two tablettings are symmetrical to be arranged in frame.
In the presence of guide part, crude green body can be semi-finished product sealing strip by stable extruding.
In the processing method of above-mentioned high leakproofness polypropylene seal bar, in frame, there is actuator and forming disk also,
Forming disk discharging gap discharging at and forming disk edge have one annular recess forming tank, the width of semi-finished product sealing strip
Above-mentioned molding well width is slightly larger than, actuator is connected with forming disk and actuator can drive forming disk to rotate.
Forming disk has two effects：One, further to semi-finished product sealing strip molding；Traction is played to sealing strip two,
Effect, it is ensured that this processing method energy continuous operation.
The purpose of first of the present invention can be realized by following technical proposal：
A kind of high leakproofness polypropylene seal bar, it is characterised in that poly- in strip including flexible adhesive tape and two
Propylene original bar：Former bar one and former bar two, former bar one and former bar two just to side be joint face, at the joint face of above-mentioned former bar one
There is the convex edge that protrudes, there is at the joint face of above-mentioned former bar two recessed caulking groove, above-mentioned convex edge is mutually chimeric with caulking groove and chimeric
The sealing strip of a rectangular in cross-section is formed between former bar one and former bar two afterwards, and above-mentioned adhesive tape is pressed on former bar one and former bar two
Joint face between.
The joint face of the joint face of former bar one and former bar two can increase contact area in the presence of convex edge and caulking groove, it is ensured that
Former bar one and the connective stability of former bar two.
Meanwhile, further increase the connective stability of former bar one and former bar two in the presence of adhesive tape.
In above-mentioned high leakproofness polypropylene seal bar, with contact area can be increased at the joint face of the former bar one
Some convex epireliefs, the junction of the former bar two has and the one-to-one indenture of above-mentioned convex epirelief, when former bar one is connected with original bar two
After connecing, above-mentioned convex epirelief is connected one to one with indenture.
The setting of convex epirelief and indenture is also for the contact area increased between former bar one and former bar two.Certainly, convex epirelief
Size is less than convex edge size, and the size of indenture is also little than the size of caulking groove.But, convex epirelief is distributed on the joint face of former bar one,
Indenture is distributed on the joint face of former bar two.
In above-mentioned high leakproofness polypropylene seal bar, described convex epirelief, convex edge and former bar one are integral type structure.
In above-mentioned high leakproofness polypropylene seal bar, described indenture, caulking groove and former bar two are integral type structure.
In above-mentioned high leakproofness polypropylene seal bar, described adhesive tape is elastomeric material in laminar and adhesive tape.
In above-mentioned high leakproofness polypropylene seal bar, the both sides of described adhesive tape are respectively overlay in above-mentioned former bar one
At the joint face of joint face and former bar two.
In above-mentioned high leakproofness polypropylene seal bar, have in described adhesive tape along its length some uniform
Perforate.
In order to ensure that adhesive tape is stably connected with polypropylene original bar, need to reverse sealing strip.Opening in twist process
Adhesive tape is avoided to be torn in the presence of hole.
Compared with prior art, the processing method of this high leakproofness polypropylene seal bar is using two root polypropylenes original bar and
Sealing strip is prepared after the connection of root adhesive tape, two root polypropylenes original bar stable can link together in the presence of adhesive tape, it is ensured that
Its intensity, with respect to single polypropylene seal bar for, with while than high intensity, its flexibility is also higher, can effectively improve
Sealing and stability.
Meanwhile, above-mentioned processing method only has chimeric, compacting and reverses, therefore, simple process, it is easy to implement.In addition,
Can make after torsion polypropylene former bar is more stable with adhesive tape links together, the yield rate of product is also higher.
Description of the drawings
Fig. 1 is the cross section structure diagram of this high leakproofness polypropylene seal bar.
In figure, 1, former bar one；1a, convex edge；2nd, former bar two；2a, caulking groove；3rd, adhesive tape.
Specific embodiment
Embodiment one
The processing method of this high leakproofness polypropylene seal bar is comprised the following steps：
A, get the raw materials ready：The standby polypropylene original bar in strip of choosing, and have sticking adhesive tape, above-mentioned polypropylene original bar winding
At storing roller one, above-mentioned adhesive tape is wrapped at storing roller two.
In the present embodiment, in step A, the transporting velocity of polypropylene original bar and adhesive tape is 1 m/min.
B, chimeric：By traction piece by polypropylene original bar by the lasting pull-out of storing roller one, by another traction
By adhesive tape by the lasting pull-out of storing roller two, the quantity of above-mentioned storing roller one is two to part, two for being drawn out polypropylene original
It is in that another traction piece is drawn out during adhesive tape is persistently pulled out in duct-like feeding channel that bar simultaneously enters one
Adhesive tape is located at feeding channel end and adhesive tape and is located between two parallel polypropylene original bars, two root polypropylenes original bar and a glue
During bar is persistently pulled out, as the gap between two root polypropylenes original bar is slightly less than adhesive tape gap, therefore, above-mentioned two
Root polypropylene original bar and adhesive tape is preliminary links together, forms a crude green body.
There is a platen in the form of annular discs, the edge of above-mentioned platen to be located at and send in feeding channel end in described step B
The center of material passage.
Described platen is connected in the rotating shaft of motor.
In the present embodiment, the rotating speed of the platen is 10 revs/min.
C, compacting：Moving direction along polypropylene original bar and adhesive tape has two panels pressure in the form of sheets at feeding channel rear portion
Piece, forms a discharging gap for setting width between two tablettings, and the width of above-mentioned crude green body is slightly larger than discharging gap width, slightly
Base adhesive tape behind the gap that discharges is pressed between two root polypropylenes original bar, obtains semi-finished product sealing strip.
Tabletting is connected in a frame, and one end of the tabletting is connection end, and the other end is contact jaw, above-mentioned connection end with
Frame is connected, and there is between connection end and contact jaw the guide part that seamlessly transits, and two tablettings are symmetrical to be arranged in frame.
Also there is actuator and forming disk, at the discharging in forming disk discharging gap and forming disk edge has together in frame
The forming tank of annular recess, the width of semi-finished product sealing strip are slightly larger than above-mentioned molding well width, actuator be connected with forming disk and
Actuator can drive forming disk to rotate.
D, torsion：Apply external force to reverse semi-finished product sealing strip, semi-finished product sealing strip occur after helical deformation adhesive tape with
Two root polypropylenes original bar is fully contacted against stopping obtains the finished product sealing strip of stable connection after applying external force.
As shown in figure 1, this high leakproofness polypropylene seal bar includes the adhesive tape of flexibility and two polypropylene in strip
Former bar：Former bar 1 and former bar 22, former bar 1 and former bar 22 just to side be joint face, the joint face of above-mentioned former bar 1
Place has the convex edge 1a for protruding, and there is at the joint face of above-mentioned former bar 22 recessed caulking groove 2a, above-mentioned convex edge 1a and caulking groove 2a phases
The sealing strip of a rectangular in cross-section is formed after chimeric and chimeric between original bar 1 and former bar 22, and above-mentioned adhesive tape 3 is pressed on
Between the joint face of former bar 1 and former bar 22.
With some convex epireliefs that can increase contact area at the joint face of the former bar 1, the junction of the former bar 22
Have and the one-to-one indenture of above-mentioned convex epirelief, after former bar 1 is connected with former bar 22, above-mentioned convex epirelief is corresponded with indenture
Connection.
Described convex epirelief, convex edge and former bar one are integral type structure.
Described indenture, caulking groove and former bar two are integral type structure.
Described adhesive tape 3 is in flake and adhesive tape is elastomeric material.
The both sides of described adhesive tape 3 are respectively overlay at the joint face of the joint face of above-mentioned former bar one and former bar two.
There are in described adhesive tape 3 some uniform perforates along its length.
The joint face of the joint face of former bar one and former bar two can increase contact area in the presence of convex edge and caulking groove, it is ensured that
Former bar one and the connective stability of former bar two.
Meanwhile, further increase the connective stability of former bar one and former bar two in the presence of adhesive tape.
Embodiment two
The processing method of this high leakproofness polypropylene seal bar is comprised the following steps：
A, get the raw materials ready：The standby polypropylene original bar in strip of choosing, and have sticking adhesive tape, above-mentioned polypropylene original bar winding
At storing roller one, above-mentioned adhesive tape is wrapped at storing roller two.
In the present embodiment, in step A, the transporting velocity of polypropylene original bar and adhesive tape is 3 ms/min.
B, chimeric：By traction piece by polypropylene original bar by the lasting pull-out of storing roller one, by another traction
By adhesive tape by the lasting pull-out of storing roller two, the quantity of above-mentioned storing roller one is two to part, two for being drawn out polypropylene original
It is in that another traction piece is drawn out during adhesive tape is persistently pulled out in duct-like feeding channel that bar simultaneously enters one
Adhesive tape is located at feeding channel end and adhesive tape and is located between two parallel polypropylene original bars, two root polypropylenes original bar and a glue
During bar is persistently pulled out, as the gap between two root polypropylenes original bar is slightly less than adhesive tape gap, therefore, above-mentioned two
Root polypropylene original bar and adhesive tape is preliminary links together, forms a crude green body.
There is a platen in the form of annular discs, the edge of above-mentioned platen to be located at and send in feeding channel end in described step B
The center of material passage.
Described platen is connected in the rotating shaft of motor.
In the present embodiment, the rotating speed of the platen is 30 revs/min.
C, compacting：Moving direction along polypropylene original bar and adhesive tape has two panels pressure in the form of sheets at feeding channel rear portion
Piece, forms a discharging gap for setting width between two tablettings, and the width of above-mentioned crude green body is slightly larger than discharging gap width, slightly
Base adhesive tape behind the gap that discharges is pressed between two root polypropylenes original bar, obtains semi-finished product sealing strip.
Tabletting is connected in a frame, and one end of the tabletting is connection end, and the other end is contact jaw, above-mentioned connection end with
Frame is connected, and there is between connection end and contact jaw the guide part that seamlessly transits, and two tablettings are symmetrical to be arranged in frame.
Also there is actuator and forming disk, at the discharging in forming disk discharging gap and forming disk edge has together in frame
The forming tank of annular recess, the width of semi-finished product sealing strip are slightly larger than above-mentioned molding well width, actuator be connected with forming disk and
Actuator can drive forming disk to rotate.
D, torsion：Apply external force to reverse semi-finished product sealing strip, semi-finished product sealing strip occur after helical deformation adhesive tape with
Two root polypropylenes original bar is fully contacted against stopping obtains the finished product sealing strip of stable connection after applying external force.
As shown in figure 1, this high leakproofness polypropylene seal bar includes the adhesive tape of flexibility and two polypropylene in strip
Former bar：Former bar 1 and former bar 22, former bar 1 and former bar 22 just to side be joint face, the joint face of above-mentioned former bar 1
Place has the convex edge 1a for protruding, and there is at the joint face of above-mentioned former bar 22 recessed caulking groove 2a, above-mentioned convex edge 1a and caulking groove 2a phases
The sealing strip of a rectangular in cross-section is formed after chimeric and chimeric between original bar 1 and former bar 22, and above-mentioned adhesive tape 3 is pressed on
Between the joint face of former bar 1 and former bar 22.
With some convex epireliefs that can increase contact area at the joint face of the former bar 1, the junction of the former bar 22
Have and the one-to-one indenture of above-mentioned convex epirelief, after former bar 1 is connected with former bar 22, above-mentioned convex epirelief is corresponded with indenture
Connection.
Described convex epirelief, convex edge and former bar one are integral type structure.
Described indenture, caulking groove and former bar two are integral type structure.
Described adhesive tape 3 is in flake and adhesive tape is elastomeric material.
The both sides of described adhesive tape 3 are respectively overlay at the joint face of the joint face of above-mentioned former bar one and former bar two.
There are in described adhesive tape 3 some uniform perforates along its length.
The joint face of the joint face of former bar one and former bar two can increase contact area in the presence of convex edge and caulking groove, it is ensured that
Former bar one and the connective stability of former bar two.
Meanwhile, further increase the connective stability of former bar one and former bar two in the presence of adhesive tape.
Embodiment three
The processing method of this high leakproofness polypropylene seal bar is comprised the following steps：
A, get the raw materials ready：The standby polypropylene original bar in strip of choosing, and have sticking adhesive tape, above-mentioned polypropylene original bar winding
At storing roller one, above-mentioned adhesive tape is wrapped at storing roller two.
In the present embodiment, in step A, the transporting velocity of polypropylene original bar and adhesive tape is 2 ms/min.
B, chimeric：By traction piece by polypropylene original bar by the lasting pull-out of storing roller one, by another traction
By adhesive tape by the lasting pull-out of storing roller two, the quantity of above-mentioned storing roller one is two to part, two for being drawn out polypropylene original
It is in that another traction piece is drawn out during adhesive tape is persistently pulled out in duct-like feeding channel that bar simultaneously enters one
Adhesive tape is located at feeding channel end and adhesive tape and is located between two parallel polypropylene original bars, two root polypropylenes original bar and a glue
During bar is persistently pulled out, as the gap between two root polypropylenes original bar is slightly less than adhesive tape gap, therefore, above-mentioned two
Root polypropylene original bar and adhesive tape is preliminary links together, forms a crude green body.
There is a platen in the form of annular discs, the edge of above-mentioned platen to be located at and send in feeding channel end in described step B
The center of material passage.
Described platen is connected in the rotating shaft of motor.
In the present embodiment, the rotating speed of the platen is 20 revs/min.
C, compacting：Moving direction along polypropylene original bar and adhesive tape has two panels pressure in the form of sheets at feeding channel rear portion
Piece, forms a discharging gap for setting width between two tablettings, and the width of above-mentioned crude green body is slightly larger than discharging gap width, slightly
Base adhesive tape behind the gap that discharges is pressed between two root polypropylenes original bar, obtains semi-finished product sealing strip.
Tabletting is connected in a frame, and one end of the tabletting is connection end, and the other end is contact jaw, above-mentioned connection end with
Frame is connected, and there is between connection end and contact jaw the guide part that seamlessly transits, and two tablettings are symmetrical to be arranged in frame.
Also there is actuator and forming disk, at the discharging in forming disk discharging gap and forming disk edge has together in frame
The forming tank of annular recess, the width of semi-finished product sealing strip are slightly larger than above-mentioned molding well width, actuator be connected with forming disk and
Actuator can drive forming disk to rotate.
D, torsion：Apply external force to reverse semi-finished product sealing strip, semi-finished product sealing strip occur after helical deformation adhesive tape with
Two root polypropylenes original bar is fully contacted against stopping obtains the finished product sealing strip of stable connection after applying external force.
As shown in figure 1, this high leakproofness polypropylene seal bar includes the adhesive tape of flexibility and two polypropylene in strip
Former bar：Former bar 1 and former bar 22, former bar 1 and former bar 22 just to side be joint face, the joint face of above-mentioned former bar 1
Place has the convex edge 1a for protruding, and there is at the joint face of above-mentioned former bar 22 recessed caulking groove 2a, above-mentioned convex edge 1a and caulking groove 2a phases
The sealing strip of a rectangular in cross-section is formed after chimeric and chimeric between original bar 1 and former bar 22, and above-mentioned adhesive tape 3 is pressed on
Between the joint face of former bar 1 and former bar 22.
With some convex epireliefs that can increase contact area at the joint face of the former bar 1, the junction of the former bar 22
Have and the one-to-one indenture of above-mentioned convex epirelief, after former bar 1 is connected with former bar 22, above-mentioned convex epirelief is corresponded with indenture
Connection.
Described convex epirelief, convex edge and former bar one are integral type structure.
Described indenture, caulking groove and former bar two are integral type structure.
Described adhesive tape 3 is in flake and adhesive tape is elastomeric material.
The both sides of described adhesive tape 3 are respectively overlay at the joint face of the joint face of above-mentioned former bar one and former bar two.
There are in described adhesive tape 3 some uniform perforates along its length.
The joint face of the joint face of former bar one and former bar two can increase contact area in the presence of convex edge and caulking groove, it is ensured that
Former bar one and the connective stability of former bar two.
Meanwhile, further increase the connective stability of former bar one and former bar two in the presence of adhesive tape.
Claims (10)
1. a kind of processing method of high leakproofness polypropylene seal bar, the method are comprised the following steps：
A, get the raw materials ready：The standby polypropylene original bar in strip of choosing, and have sticking adhesive tape, above-mentioned polypropylene original bar is wrapped in storage
At material roller one, above-mentioned adhesive tape is wrapped at storing roller two；
B, chimeric：By traction piece by polypropylene original bar by the lasting pull-out of storing roller one, will by another traction piece
By the lasting pull-out of storing roller two, the quantity of above-mentioned storing roller one is two to adhesive tape, and two for being drawn out polypropylene original bar is same
When enter one in duct-like feeding channel, the adhesive tape that another traction piece is drawn out during adhesive tape is persistently pulled out
It is located at feeding channel end and adhesive tape to be located between two parallel polypropylene original bars, two root polypropylenes original bar and an adhesive tape quilt
During persistently pulling out, as the gap between two root polypropylenes original bar is slightly less than adhesive tape gap, therefore, above-mentioned two gather
Propylene original bar and adhesive tape is preliminary links together, forms a crude green body；
C, compacting：Moving direction along polypropylene original bar and adhesive tape has two panels tabletting in the form of sheets at feeding channel rear portion,
A discharging gap for setting width is formed between two tablettings, and slightly larger than discharging gap width, crude green body is passed through the width of above-mentioned crude green body
After crossing discharging gap, adhesive tape is pressed between two root polypropylenes original bar, obtains semi-finished product sealing strip；
D, torsion：Apply external force to reverse semi-finished product sealing strip, semi-finished product sealing strip occurs after helical deformation adhesive tape with two
Polypropylene original bar is fully contacted against stopping obtains the finished product sealing strip of stable connection after applying external force.
2. the processing method of high leakproofness polypropylene seal bar according to claim 1, it is characterised in that described step
There is a platen in the form of annular discs, the edge of above-mentioned platen to be located at the center of feeding channel in feeding channel end in B.
3. the processing method of high leakproofness polypropylene seal bar according to claim 2, it is characterised in that described platen
It is connected in the rotating shaft of motor.
4. the processing method of high leakproofness polypropylene seal bar according to claim 1, it is characterised in that step A
The transporting velocity of middle polypropylene original bar and adhesive tape is 13 ms/min.
5. the processing method of high leakproofness polypropylene seal bar according to claim 3, it is characterised in that the platen
Rotating speed is 10 30 revs/min.
6. the processing method of high leakproofness polypropylene seal bar according to claim 1, it is characterised in that step C
Middle tabletting is connected in a frame, and one end of the tabletting is connection end, and the other end is contact jaw, and above-mentioned connection end is solid with frame
Even, there is between connection end and contact jaw the guide part for seamlessly transitting, two tablettings are symmetrical to be arranged in frame.
7. the processing method of high leakproofness polypropylene seal bar according to claim 6, it is characterised in that also have in frame
There are actuator and a forming disk, at the discharging in forming disk discharging gap and forming disk edge has the forming tank of one annular recess,
The width of semi-finished product sealing strip is slightly larger than above-mentioned molding well width, and actuator is connected with forming disk and actuator can drive forming disk
Rotate.
8. a kind of high leakproofness polypropylene seal bar, it is characterised in that including flexible adhesive tape and two in strip poly- third
Alkene original bar：Former bar one and former bar two, former bar one and former bar two just to side be joint face, have at the joint face of above-mentioned former bar one
There is the convex edge of protrusion, after having recessed caulking groove, above-mentioned convex edge mutually chimeric with caulking groove and chimeric at the joint face of above-mentioned former bar two
The sealing strip of a rectangular in cross-section is formed between former bar one and former bar two, and above-mentioned adhesive tape is pressed on former bar one with former bar two
Between joint face.
9. high leakproofness polypropylene seal bar according to claim 8, it is characterised in that at the joint face of the former bar one
With some convex epireliefs that can increase contact area, the junction of the former bar two has and the one-to-one indenture of above-mentioned convex epirelief,
After former bar one is connected with former bar two, above-mentioned convex epirelief is connected one to one with indenture.
10. high leakproofness polypropylene seal bar according to claim 8, it is characterised in that described convex epirelief, convex edge and original
Bar one is integral type structure.
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| CN201611177557.8A CN106493961B (en) | 2016-12-19 | 2016-12-19 | The processing method and its sealing strip of high leakproofness polypropylene seal item |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4029837A (en) * | 1975-08-14 | 1977-06-14 | William C. Heller, Jr. | Composite plastic-metallic bonding means and method |
| JP2007177923A (en) * | 2005-12-28 | 2007-07-12 | Honda Motor Co Ltd | Joint boot |
| CN205534202U (en) * | 2016-03-21 | 2016-08-31 | 宁德时代新能源科技股份有限公司 | Box seal structure |
| CN206406462U (en) * | 2016-12-19 | 2017-08-15 | 海宁市力佳隆门窗密封条有限公司 | High leakproofness polypropylene seal bar |
-
2016
- 2016-12-19 CN CN201611177557.8A patent/CN106493961B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4029837A (en) * | 1975-08-14 | 1977-06-14 | William C. Heller, Jr. | Composite plastic-metallic bonding means and method |
| JP2007177923A (en) * | 2005-12-28 | 2007-07-12 | Honda Motor Co Ltd | Joint boot |
| CN205534202U (en) * | 2016-03-21 | 2016-08-31 | 宁德时代新能源科技股份有限公司 | Box seal structure |
| CN206406462U (en) * | 2016-12-19 | 2017-08-15 | 海宁市力佳隆门窗密封条有限公司 | High leakproofness polypropylene seal bar |
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| CN106493961B (en) | 2019-04-23 |
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