CN1055654C - Molded surface fastener, and method and apparatus for manufacturing the same - Google Patents
Molded surface fastener, and method and apparatus for manufacturing the same Download PDFInfo
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- CN1055654C CN1055654C CN96112033A CN96112033A CN1055654C CN 1055654 C CN1055654 C CN 1055654C CN 96112033 A CN96112033 A CN 96112033A CN 96112033 A CN96112033 A CN 96112033A CN 1055654 C CN1055654 C CN 1055654C
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Abstract
A molded surface fastener is manufactured by supplying molten resin to the circumferential surface of a die wheel rotating in one way to mold a substrate sheet blank and a multiplicity of substantially straight and inclined engaging element blanks in an integral form, and then pressing distal ends of the engaging element blanks by a heat-molding roller in rotation at the same speed to incline the engaging element blanks further toward the substrate sheet blank and also to melt the distal ends to shape each said distal end into an engaging head projecting in a direction opposite to the direction of inclination of the respective engaging element blank. Each of the resulting engaging elements is composed of a stem rising from the substrate sheet surface with inclination by a predetermined angle ( theta 1), and an engaging head projecting from an upper end of the stem in a direction opposite to the direction of inclination of the stem, an extension line of the engaging head crossing the substrate sheet surface at a predetermined acute angle ( theta 2).
Description
The present invention relates to by continuous injection or extruding thermoplastic resins monolithic molding, and comprise a substrate and the surface fastener of a plurality of fasteners of holding up from the front surface of substrate and the method and the device of continuous manufacture of profiled surface fastener.More specifically, the present invention relates to have unique shape, the method and the device of good joint rate and the profiled surface fastener of bond strength and continuous manufacture of profiled surface fastener.
Generally, a known fastener convex face fastener has a plurality of rings on the front surface of substrate, and recessed surface fastener has a plurality of fasteners that can engage with ring on the front surface of substrate, and they engage by pressure.In recent years, the application of this surface fastener is increased to the connector that is used for various industrial materials from the connector of commodity.
Though compare with the general surface fastener, the surface fastener that a plurality of rings are arranged on the substrate front surface is still made by braiding that obtains with braiding or knitted fibers silk or knitting or nonwoven, and do not have big variation, but attempted to improve the fastener of surface fastener, to cooperate above-mentioned various uses, also consider production cost simultaneously.
In addition, above-mentioned surface fastener also is used for the underwear of diaper and so on more; Therefore, the fastener that this respect is used requires suitable bond strength, and suitable pliability and less contact are itched.Therefore wish the fastener size is reduced to minimum.Special because the kind disposable commodity of paper nappy should be inexpensive, tendency avoids braiding or knitted surface fastener to reduce price as far as possible.
On the other hand, common fastener shape mainly is divided into three kinds of shapes: the hook-type fastener, have the hook-type engagement head, and curved downwards from the upper end or the arc of the bar portion that the substrate front surface is holded up; So-called mushroom fastener has the engagement head of umbrella shape, from bar portion upper end edge all directions that the substrate front surface is holded up and upwards bulge; With the palm-tree fastener, have palm-tree hook-type engagement head, outstanding from the upper end of the bar portion that the substrate front surface is holded up.Certainly, advised that multiple remodeling is to improve this three classes fastener respectively.
The engagement feature of this three classes fastener is obviously different, as described below each other.The hook-type engagement head tendency of hook-type fastener is in the same position distortion and fasten the ring that matches, and the umbrella shape engagement head of mushroom-shaped fastener is difficult to distortion, and engages with a plurality of rings that match that intersect along all directions.Therefore, the hook-type fastener generally has the bond strength lower than mushroom-shaped fastener.But mushroom-shaped fastener tendency has the so-called ring damage that tangles phenomenon and make self or match in using repeatedly, and it is disadvantageous comparing with the hook-type fastener in this respect.About with the rate that engages of the ring that matches, the mushroom-shaped fastener is better than the hook-type fastener, because the mushroom-shaped fastener can engage along any direction, and is easy to engage with little ring.Simultaneously, the engagement feature of palm shape fastener is trading off between mushroom-shaped fastener and hook-type fastener.
For above-mentioned reasons, the surface fastener with mushroom-shaped fastener is used for industrial materials more and more, interior decoration and commodity, and they require suitable bond strength and less number of times ground to use repeatedly.For example US3191255US4846815 discloses the mushroom-shaped surface fastener of braiding or knitted surface fastener, discloses the shaping synthetic resin surface fastener in US3718728 and US5077870 and the open WO 94/23610 of PCT.
Compromise fastener between hook-type fastener and mushroom-shaped fastener is disclosed among the open Sho 63-66524 of Japan Patent.According to this application, fastener is made by monofilament, comprises with inclination attitude or the vertical posture monofilament bar portion of holding up from the looped fabric surface, with up outstanding from bar portion level or diagonal angle and becomes the egg type engagement head of integral body with bar portion.This surface fastener engagement feature is trading off between hook-type fibre surface fastener and the mushroom-shaped fibre surface fastener.That is to say that this surface fastener is easy peeling off as the hook-type surface fastener, the suitable drag that has as the suitable bond strength of mushroom-shaped surface fastener and can guarantee to use to repeatedly.
For example at US319,255 and US4846815 in disclosed fibre surface fastener owing to its material has suitable flexibility, still, this fibre surface fastener requires many treatment steps, the low and cost height of productivity ratio.
The open disclosed surface fastener of Sho 63-66524 of Japan Patent comprises the fabric knitted cloth as top surface fastener, and productivity ratio is low and the reduction price is limited.In addition and since the egg type engagement head that forms in the upper end of the fastener of surface fastener with the base cloth surface extends in parallel or the front end of engagement head diagonally towards on, when the surface fastener that is matched when surface fastener was pressed, bar portion is inclination along inclined direction further.Therefore, most of engagement head is diagonally towards last, and the result is difficult to the joint rate that reaches predetermined.Therefore easily when the engagement of loops of finishing and matching, fastener has less anti-separating force, separates, because fastener is the monofilament manufacturing, too softness and engagement head have above-mentioned shape for they.
On the other hand, for example disclosed forming synthetic resin surface fastener can be with continuous method manufacturing in US3718725 and US5077870 and PCT application WO94/23610, so price is low.But generally this class surface fastener rigidity is big, and hard contact is unavoidably arranged, and the sensation of itching is arranged when the fastener upper end contacts with user's skin.Therefore, the common surface fastener of this class is not suitable for doing the commodity of underwear and so on, and they are used as the connector of industrial materials mostly.
First purpose of the present invention provides a kind of synthetic resin surface fastener of shaping, it has high productivity ratio, low price and high flexibility and bond strength than the hook-type fastener in the common profiled surface fastener, can avoid so-called and tangle phenomenon and can not damage suitable degree of engagement with the ring that matches, can guarantee suitable has the less sensation of itching to the drag of throwing off ring and than common hook fastener.
Second purpose of the present invention provides the method for the above-mentioned shaping resin surface fastener of continuous manufacturing.
The 3rd purpose of the present invention provides the device of implementing said method.
For realizing first purpose of the present invention, according to a first aspect of the present invention, provide a kind of surface fastener of forming synthetic resin, comprising:
One substrate; With a plurality of fasteners of holding up with described substrate front surface; Wherein each described fastener comprises a bar portion, hold up from described substrate, and with predetermined angle (θ
1) described relatively front surface inclination; With an engagement head, the one head integrally is bearing in the upper end of described bar portion, and the other end tilts along the direction relative with described bar portion incline direction, makes the acute angle (θ of front surface to be scheduled to of extension line and described substrate of the bearing of trend of described engagement head
2) intersect.
In the profiled surface fastener, a plurality of described fasteners are lined up multirow on the front surface of described substrate, and the described bar portion of the described fastener of each row tilts to the direction of unanimity, and described engagement head of each row is extended along the direction of unanimity.Perhaps each adjacent lines tilts along relative direction to described bar portion, and each adjacent lines also tilts along relative direction to described engagement head.In another form, the right described bar portion that each of described fastener of each row is adjacent tilts along relative direction, and each adjacent right described engagement head of the described fastener of each row tilts along relative direction.
For realizing first purpose of the present invention, provide a kind of surface fastener of forming synthetic resin according to a second aspect of the present invention, comprising:
One substrate; Reach a plurality of fasteners of holding up from the front surface of described substrate; Wherein a pair of described fastener forming V-shape or Y shape are holded up, and respectively comprise from the described relatively front surface of described substrate (θ at a predetermined angle
1) the bar portion of holding up, an and engagement head, the one end integrally is bearing in the upper end of described bar portion, and other end edge and the relative direction extension of described bar portion's incline direction, the right described engagement head of described fastener is extended to the other side each other, the predetermined acute angle (θ of the extension line of each engagement head and the front surface of described substrate
2) intersect.
When the shaping surface fastener was had the surface fastener that the matches pressurization of a plurality of rings by the front surface at substrate, the bar portion of each fastener further tilted to make along inclined direction that the ring that matches leads in bar portion.Subsequently, when the pressure of the surface fastener that matches discharged, bar portion elasticity was holded up thereby ring is buckled between bar portion and the engagement head.Simultaneously, because engagement head has the acute angle with respect to substrate, the ring that fastens flexibly holds with engagement head and engages.
When acting on the ring that fastens with pulling force along detaching direction, different with common hook-type fastener, engagement head can flexibly be out of shape the maintenance tightening force, simultaneously, also do not make bar portion point to the direction that the diagonal angle makes progress to the cheek of engagement head, so ring is deviate from engagement head easily along the rightabout strain that tilts as holding up the upper end that masterpiece is used in bar portion.When a plurality of rings engaged with same engagement head, because the rear end of engagement head is by the last end bearing of bar portion, so ring do not engage with the rear end of engagement head when separation, that is to say that state so the ring not taking to hang can separate with engagement head reposefully.
For realizing second purpose of the present invention, provide a kind of method of more making the molding synthetic resin surface fastener continuously according to a third aspect of the present invention, described fastener has a plurality of fasteners of holding up from substrate, described method comprises the following steps: to rotate mould wheel, and the circumferential surface of described mould wheel has a plurality of forming cavity; Under predetermined resin pressure, continuously the resin of fusing is fed to the introducing port of the molten resin of described mould wheel; The rotation direction of taking turns along described mould when the resin of the described fusing of described fastener preliminarily forming chamber filling is shaped and a whole substrate blank and a plurality of fastener blank; From the circumferential surface of described mould wheel, the substrate blank and the fastener blank that are shaped are separated, and move the blank of described separation along a mobile route; With moving substrate blank under described separation the and fastener blank along described mobile route simultaneously, with the front end of the described fastener blank of hot forming roll-in, described fastener blank is along inclined direction further tilted and melts described front end described front end is configured as along the outstanding engagement head of the direction relative with each fastener blank incline direction.
Best, described resin directly is injected into the resin introducing port of described mould wheel from the continuous nozzle that is set as the surface of taking turns in the face of described mould.Perhaps described resin from extrusion nozzle to the boundary in described mould wheel take turns with described mould and the parallel pressure roll of axis between described molten resin introducing port extrude.
For realizing the 3rd purpose of the present invention, a kind of device of continuous manufacturing forming synthetic resin surface fastener is provided according to a fourth aspect of the present invention, described fastener has a plurality of fasteners of holding up from substrate, described device comprises: mould wheel, its circumferential surface have a plurality of with respect to the straight fastener preliminarily forming chamber that radially tilts at a predetermined angle; Drive the drive unit that described mould wheel rotates along a direction; The molten resin feeding device is set as the molten resin introducing port in the face of described mould wheel, and the geat of preset width is arranged in the described device; The separator that the circumferential surface of continuously shaped surface fastener on the circumferential surface of described mould wheel being taken turns from described mould along with the rotation of described mould wheel separates; Move the mobile device of the surface fastener that separates along predetermined mobile route; With a hot forming roller, be located on the described mobile route and face with the fastener blank of described surface fastener, be used for the front end of fastener blank is synchronously rotated so that described front end is heated to the fusion temperature of resin material toward pressing down and be driven along the translational speed of moving direction and described surface fastener, each front end be configured as along with each fastener blank engagement head that the side of expecting gives prominence in the opposite direction of inclining.Described mould wheel has cooling device usually.
Best, described molten resin feeding device is to be set as the continuous injection nozzle of facing with the circumferential surface of described mould wheel.Perhaps described device also comprise one with the parallel pressure roll of axis of described mould wheel, described molten resin feeding device is the extrusion nozzle of molten resin towards the described molten resin introducing port pressure of boundary between described mould wheel and pressure roll.For V-arrangement or Y shape fastener, the circumferential surface of best described hot forming roller has along circumferential surface to be heaved and the zigzag fashion of negative area continuously.
Fig. 1 is the side view of fastener in the molded surface fastener of the present invention;
Fig. 2 is the top view of the fastener of Fig. 1;
Fig. 3 A, 3B, 3C are the part perspective views of example that the engagement head shape of fastener is shown;
Fig. 4 A, 4B illustrate the fastener of a remodeling;
Fig. 5 A, 5B illustrate the fastener of another remodeling;
Fig. 6 illustrates the part side view of making the process of molded surface fastener according to a kind of method of the present invention;
Fig. 7 A, 7B, 7C illustrate the mode that engagement head forms in the methods of the invention;
Fig. 8 illustrates the part perspective view of taking turns the annular slab of element as the mould of the manufacturing installation that is used for molded surface fastener of the present invention;
Fig. 9 is the side view that illustrates with the mode of the engagement head of single hot forming roll forming forming V-shape fastener;
Figure 10 is the side view that the hot forming roller of the remodeling that is suitable for use in molded V-arrangement and Y shape engagement head is shown;
Figure 11 is the side view of another embodiment of making the method for molded surface fastener.
Each most preferred embodiment of the present invention is described with reference to the accompanying drawings.
Fig. 1 is the side view of fastener that the molded synthetic resin surface fastener of an exemplary embodiments of the present invention is shown, and Fig. 2 is the top view of this fastener.Shown in Fig. 1 and 2, the fastener of present embodiment has very simple form.The example that is used for the synthetic resin of surface fastener of the present invention is a thermoplastic resin, for example polyamide, polyester and polypropylene.
At Fig. 1, in 2, label 11 is that it has front surface by the substrate of forming synthetic resin, and the Unitarily molded special a plurality of fasteners 12 (only illustrating 1 among the figure) of shape that go out are arranged on it.Each fastener 12 comprises a 12a of bar portion, and it is with respect to substrate 11 front surfaces θ at a predetermined angle
1Tilt and hold up from this front surface, also have engagement head 12b with the direction relative with the 12a of bar portion incline direction from the upper end of the 12a of bar portion front surface outstanding and substrate 11 relatively with acute angle theta
2Tilt.
In the front surface of substrate 11 and the angle theta between the 12a of bar portion
1Whole shape by quality, shape of cross section, size and the bar portion of synthetic resin is determined.If the quality of synthetic resin is soft, required angle is big as far as possible but less than 90 °, to guarantee suitable elasticity; If the shape of cross section of bar portion enlarges (as shown in the figure) towards the bottom, angle can be reduced to approximate 60 °.Angle is determined based on above-mentioned various factors.
Depend on angle θ between substrate 11 front surfaces and the 12a of bar portion at the front surface of base stage 11 and the angle between the engagement head 12b
1Especially, at 12a of bar portion and engagement head 12b infall, its angle θ
3(=θ
1-θ
2) decision wherein will with the aperture of the angle brace of the engagement of loops that matches.If angle θ
3Too little, be difficult to and engagement of loops; So angle θ of and engagement of loops firm to energy
3, ideal value is according to angle θ
1, θ
2Decision.
The shape of engagement head 12b is restriction ad hoc, flat parallel tubular of the example, and flat bulb and the triangular plate of oval cross section is arranged, as Fig. 3 A, 3B is shown in the 3C.On the other hand, the example shown in the shape of the 12a of bar portion also is not limited to is advised available various other shape.At Fig. 1, in 2 the example, the shape of cross section of the 12a of bar portion is the rectangle along vertical elongation of engagement head 12b, and its long limit increases gradually towards the bottom.In other form, also suggestion is with circular, oval, triangle or other polygonal cross-section shape, and this shape of cross section is uniform from the bottom to the upper end size.
When the fastener 12 of molded surface fastener of the present invention was had the surface fastener that matches of a plurality of rings to press on the front surface at substrate, the 12a of bar portion of each fastener 12 further along inclined direction tilted the ring that matches can be led and is set on the 12a of bar portion.Subsequently, after the pressure of the surface fastener that matches was removed, the 12a of bar portion flexibly holded up to catch ring in the opening between 12a of bar portion and engagement head 12b.Simultaneously, engagement head 12b is with the acute angle theta of relative substrate 11
2Extend, the ring of catching is flexibly fastened with engagement head 12b and is engaged.
Act on the ring of catching when pulling force along detaching direction, different with common hook-type fastener, engagement head not strain to keep tightening force, simultaneously not as holding up the upper end that masterpiece is used in the 12a of bar portion, make the 12a of bar portion upper end edge and tilt relative direction strain upwards, and ring shifts out engagement head 12b easily guiding diagonal angle, the cheek of engagement head 12b.Under a plurality of rings and situation that same engagement head 12b engages, because the rear end of engagement head 12b is by the last end bearing of the 12a of bar portion, ring does not keep engaging with the rear end of engagement head 12b when separating, and does not just keep suspension status thereby ring to separate glossily from engagement head 12b.
Fig. 4 A, 4B, 5A and 5B illustrate the fastener of remodeling.Pair of engaging part 12,12 among these figure is erected on the surface of substrate 11.At Fig. 4 A, among the remodeling embodiment of 4B, this has a V-arrangement substrate to fastener 12,12 and holds up from substrate 11, and engagement head 12b is located at the upper end of each 12a of bar portion.Each is to engagement head 12b the other side's extension towards each other.Each engagement head 12b is along tilting opposite direction with 11 one-tenths acute angle theta of being scheduled to of relative substrate with corresponding mobile jib portion
2Angle extend.On the other hand, at Fig. 5 A, in the modification example of 5B, this is to fastener 12,12 similar Fig. 4 A, the example setting of 4B, but its substrate is with relative front surface predetermined angle theta
1Hold up a predetermined height from substrate 11, a pair of bar 12a of portion, 12a erects out from vertical base portion 12c with V-arrangement.A pair of engaging 12b, 12b are from each 12a of bar portion, and the upper end of 12a is outstanding towards the other side each other, and each engagement head 12b edge and the opposite direction of the corresponding bar 12a of portion incline direction are with the predetermined acute angle theta of front surface one-tenth of relative substrate 11
2Extend.Therefore, whole shape becomes Y shape.
Have and use device as described below to make continuously in the molded surface fastener method below of above-mentioned shape.Fig. 6 is the part side view that typical method is shown, and wherein molded surface fastener is made on typical devices continuously.Fig. 7 A, 7B, 7C are the side views that method is shown, and wherein processing unit (plant) is configured as engagement head to the far-end of fastener blank.
Among Fig. 6, label 1 expression injection nozzle, its front surface have the curved surfaces with the circumferential surface complementation of mould wheel 2, inject the resin 4 of fusing from the hole continuously.In this embodiment, injection nozzle 1 has a single trumpet 1C.
In the form of a replacement, second annular slab 52 can be replaced by the 3rd annular slab 53, and each plate has a plurality of triangles to strengthen rib shaping recess 53a along circumferential edges, and its phase place is identical with each fastener shaping recess 51a.The fastener 12 that of being shaped on the mould of the remodeling that comprises the first and the 3rd annular slab 51,53 wheel 2 has a diabolo at each opposite side of the 12a of bar portion to be strengthened rib and topples over toward sides to prevent fastener 12.
A position in the surface fastener mobile route about guide roller 8 reaches between the idler roller 6,7 is provided with the hot forming roller 9 that constitutes apparatus of the present invention part.Hot forming roller 9 is located at the upside of surface fastener mobile route, and it to erecting the front end of each the fastener blank 4b on shaped surface fastener 10 obliquely, further along inclined direction tilts fastener blank 4b with predetermined pressure.In order to control this pressure, the mobile route that hot forming roller 9 is set as apparent surface's fastener 10 has an adjustable gap.Move and from the pressure support surface fastener 10 of downside opposing hot forming roller in order to ensure surface fastener 10 level and smooth, in have the free rotating band 13 of support plate 13a to be set as relative with hot forming roller 9.By unshowned synchronous drive mechanism, drive the synchronization that the hot forming roller makes its rotating speed and idler roller 6,7.The synchronous drive mechanism example can be with the mechanical type of known timing belt or with the power type of servo motor.
Fig. 7 A, 7B and 7C show the method for the engagement head 12a that the front end of the fastener blank 4B of profiled surface fastener 10 is shaped.After being shaped with mould wheel 2, when the semi-finished product of the profiled surface fastener 10 that transmits through guide roller 8 arrive with its movement velocity synchronously along hot forming roller 9 that direction of transfer rotates, in the tilt scheduled exert pressure of front end of each fastener blank 4b of holding up of forming board 11.As a result, fastener blank 4b along inclined direction further tilts, and simultaneously, its front end fusing is configured as edge and the outstanding engagement head 12b of fastener blank 4b incline direction rightabout.Simultaneously, the outstanding scope of engagement head 12b was determined by the time that the front end of fastener blank 4b contacts with hot forming roller 9, and the angle θ between shaping engagement head 12b and the 12a of bar portion
1-θ
2And the shape of engagement head 12b is by the pressure and the heating-up temperature decision of hot forming roller.By controlling these conditions, can guarantee extensive selection to engagement head 12b shape.
The inventor finds with hot forming roller 9 shaping engagement head 12b as Fig. 4 A, 4B, and the engagement head 12b that the front end of the 12a of bar portion of the fastener 12 that Y shape shown in 5A and the 5B or V-arrangement are endways is shaped is to being beyond thought effective.Part is because two directions inclinations that fastener blank 4b edge is relative mutually, part is owing to the hot forming roller 9 and the movement velocity of surface fastener 10 are rotated synchronously, two engagement head 12b can form simultaneously, that is to say, as shown in Figure 9, the engagement head 12b that extends along relative direction can use a hot forming roller 9, is shaped along with the conveying of surface fastener 10.
Figure 10 illustrates the hot forming roller 9 of a remodeling, is specially adapted to the shaping of the engagement head 12b that the front end of each 12a of bar portion of 12 pairs of the fasteners erect with V-arrangement or Y shape forms.The hot forming roller 9 of remodeling has a wave-like circumferential surface, along the circumferential direction is arranged alternately on it to heave part and negative area.As long as it is further to tilt simultaneously along separated relative direction that waveform makes the relative front end of two fastener blank 4b, it can change to meet molding condition.
Figure 11 shows another typical method, and the fastener that wherein is shaped is made on the device of a remodeling.In the device of this remodeling, along the pressure rolls 3 that the pivot center direction setting that is parallel to mould wheel 2 is driven and mould wheel 2 rotates synchronously, molten resin 4 is from extrusion nozzle 1 ' extrude towards the molten resin introducing port that abuts against between mould wheel 2 and the pressure roll 3.The structure of the front embodiment that all the other structures of this device are basic and shown in Figure 1 is identical.When molten resin 4 is extruded into border between mould wheel 2 and pressure roll 3, the fastener blank 4b of forming board blank 4a and a plurality of shapings is formed on the circumferential surface of mould wheel 2 with integral form.Subsequently the substrate blank 4a that is shaped and fastener blank 4b are peeled from the circumferential surface of mould wheel 2.The front end of the 12a of bar portion of fastener 12 is configured as relative engagement head 12b by the hot forming roll-in time, simultaneously, idler roller 6,7 is effectively controlled becomes surface fastener 10.In the embodiment of Figure 11, shaped surface fastener 10 is derived with the straight line from mould wheel 2 to idler roller 6,7.But best, shaped surface fastener 10 is led by unshowned guide roller, moves through at mould and takes turns predetermined angular on 2 circumference, as shown in Figure 6.
From the foregoing description obviously as seen, according to profiled surface fastener of the present invention since fastener 12 have along and the 12a of bar portion incline direction relative direction from the 12a of tilting bar portion upper end outstanding and relative substrate 11 with acute angle theta
2Therefore the engagement head 12b that extends compares with the hook-type fastener of common profiled surface fastener, and fastener of the present invention can be guaranteed to improve with the rate that engages of the ring of the surface fastener that matches and guarantee the drag of opposing and ring disengagement.In addition, when pulling force acts on the ring that fastens so that when separating, different with the common hook fastener, engagement head 12b can strain not make the upper end neck of the 12a of bar portion that the cheek diagonal angle of engagement head 12b is made progress, and makes ring be easy to engagement head 12b.Therefore, when a plurality of rings engage with same engagement head 12b, the rear end of engagement head 12b by the last end bearing of the 12a of bar portion, ring does not keep engaging with the rear end of engagement head when separating, that is to say, the state of not taking to hang can be isolated ring reposefully from engagement head, and guarantees the durability of fastener 12.
In addition, profiled surface fastener of the present invention can be made continuously with the common building mortion with a hot forming roller only, can guarantee fabulous productivity ratio and reasonable prices are provided.
Claims (13)
1. the surface fastener of a forming synthetic resin comprises:
One substrate; With
A plurality of fasteners of holding up with described substrate front surface;
Wherein each described fastener comprises a bar portion, hold up from described substrate, and with predetermined angle (θ
1) described relatively front surface inclination; With an engagement head, the one head integrally is bearing in the upper end of described bar portion, and the other end tilts along the direction relative with described bar portion incline direction, makes the acute angle (θ of front surface to be scheduled to of extension line and described substrate of the bearing of trend of described engagement head
2) intersect.
2. according to the profiled surface fastener of claim 1, it is characterized in that a plurality of described fasteners line up multirow on the front surface of described substrate, the described bar portion of the described fastener of each row tilts to the direction of unanimity, and described engagement head of each row is extended along the direction of unanimity.
3. according to the profiled surface fastener of claim 2, right described bar portion tilts along relative direction to it is characterized in that each adjacent lines, and the described engagement head that each adjacent lines is right also tilts along relative direction.
4. according to the profiled surface fastener of claim 1, it is characterized in that the adjacent right described bar portion of each of described fastener of each row tilts along relative direction, and each adjacent right described engagement head of the described fastener of each row tilts along relative direction.
5. the surface fastener of a forming synthetic resin comprises:
One substrate; And
A plurality of fasteners of holding up from the front surface of described substrate;
Wherein a pair of described fastener forming V-shape or Y shape are holded up, and respectively comprise from the described relatively front surface of described substrate (θ at a predetermined angle
1) the bar portion of holding up, an and engagement head, the one end integrally is bearing in the upper end of described bar portion, and other end edge and the relative direction extension of described bar portion's incline direction, the right described engagement head of described fastener is extended to the other side each other, the predetermined acute angle (θ of the extension line of each engagement head and the front surface of described substrate
2) intersect.
6. method of making continuously the molding synthetic resin surface fastener, described fastener has a plurality of fasteners of holding up from substrate, and described method comprises the following steps:
A. rotate mould wheel, the circumferential surface of described mould wheel has a plurality of with respect to the straight fastener preliminarily forming chamber that radially tilts at a predetermined angle;
B. under predetermined resin pressure, continuously the resin of fusing is fed to the introducing port of the molten resin of described mould wheel;
C. the rotation direction of taking turns along described mould when the resin of the described fusing of described fastener preliminarily forming chamber filling is shaped and a whole substrate blank and a plurality of fastener blank;
D. from the circumferential surface of described mould wheel, the substrate blank and the fastener blank that are shaped are separated, and move the blank of described separation along a mobile route; With
E. in the substrate blank and the fastener blank while of moving along described mobile route under the described separation, with the front end of the described fastener blank of hot forming roll-in, described fastener blank is along inclined direction further tilted and melts described front end described front end is configured as along the outstanding engagement head of the direction relative with each fastener blank incline direction.
7. according to the method for the manufacturing surface fastener of claim 6, it is characterized in that described resin is directly from being set as the molten resin introducing port that is injected into described mould wheel in the face of the continuous injection nozzle of the circumferential surface of described mould wheel.
8. according to the method for the manufacturing shaping surface fastener of claim 6, it is characterized in that described resin from extrusion nozzle to the boundary the described molten resin introducing port between described mould wheel and the pressure roll parallel with the axis of described mould wheel extrude.
9. device of making continuously the forming synthetic resin surface fastener, described fastener has a plurality of fasteners of holding up from substrate, and described device comprises:
A. a mould is taken turns, and its circumferential surface has a plurality of with respect to the straight fastener preliminarily forming chamber that radially tilts at a predetermined angle;
B. drive the drive unit that described mould wheel rotates along a direction;
C. the molten resin feeding device is set as the molten resin introducing port in the face of described mould wheel, and the geat of preset width is arranged in the described device;
D. the separator that continuously shaped surface fastener on the circumferential surface of described mould wheel is separated from the circumferential surface of described mould wheel along with the rotation of described mould wheel;
E. move the mobile device of the surface fastener that separates along predetermined mobile route; With
F. hot forming roller, be located on the described mobile route and face with the fastener blank of described surface fastener, be used for the front end of fastener blank is synchronously rotated so that described front end is heated to the fusion temperature of resin material toward pressing down and be driven along the translational speed of moving direction and described surface fastener, each front end be configured as along and the side of each the fastener blank inclination engagement head of giving prominence in the opposite direction.
10. according to the device of the manufacturing shaping surface fastener of claim 9, it is characterized in that described mould wheel has cooling device.
11., it is characterized in that described molten resin feeding device is to be set as the continuous injection nozzle of facing with the circumferential surface of described mould wheel according to the device of the manufacturing shaping surface fastener of claim 9.
12. device according to the manufacturing shaping surface fastener of claim 9, it is characterized in that also comprising one with the parallel pressure roll of axis of described mould wheel, described molten resin feeding device is the extrusion nozzle of molten resin towards the described molten resin introducing port pressure of boundary between described mould wheel and pressure roll.
13. according to the device of the manufacturing shaping surface fastener of claim 9, the circumferential surface that it is characterized in that described hot forming roller has along circumferential surface to be heaved and the zigzag fashion of negative area continuously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96112033A CN1055654C (en) | 1995-11-06 | 1996-11-05 | Molded surface fastener, and method and apparatus for manufacturing the same |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7287583A JPH09121908A (en) | 1995-11-06 | 1995-11-06 | Hook-and-loop fastener and its manufacturing method and device |
| JP287583/95 | 1995-11-06 | ||
| JP287583/1995 | 1995-11-06 | ||
| CN96112033A CN1055654C (en) | 1995-11-06 | 1996-11-05 | Molded surface fastener, and method and apparatus for manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1153701A CN1153701A (en) | 1997-07-09 |
| CN1055654C true CN1055654C (en) | 2000-08-23 |
Family
ID=25743998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96112033A Expired - Fee Related CN1055654C (en) | 1995-11-06 | 1996-11-05 | Molded surface fastener, and method and apparatus for manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1055654C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2945413B1 (en) * | 2009-05-15 | 2011-05-06 | Aplix Sa | HANGING ELEMENT FOR FORMING THE MALE PART OF A SELF-AGRIPPTING |
| EP2582261B2 (en) * | 2010-06-21 | 2019-11-27 | 3M Innovative Properties Company | Method of making a structured surface and article therefrom |
| CN117941909A (en) * | 2015-12-24 | 2024-04-30 | Ykk株式会社 | Method for manufacturing molded surface connector and molding device |
| CN106858927B (en) * | 2017-02-28 | 2019-09-06 | 中国科学院理化技术研究所 | Dragonfly-imitated fastening tape hook piece and dragonfly-imitated fastening tape |
| US11160334B2 (en) * | 2017-08-18 | 2021-11-02 | Velcro Ip Holdings Llc | Fastener element shape |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4846815A (en) * | 1987-01-26 | 1989-07-11 | The Procter & Gamble Company | Disposable diaper having an improved fastening device |
| EP0324577A1 (en) * | 1988-01-11 | 1989-07-19 | Minnesota Mining And Manufacturing Company | Disposable diaper with improved hook fastener portion |
| US5077870A (en) * | 1990-09-21 | 1992-01-07 | Minnesota Mining And Manufacturing Company | Mushroom-type hook strip for a mechanical fastener |
| US5339499A (en) * | 1993-02-16 | 1994-08-23 | Velcro Industries B.V. | Hook design for a hook and loop fastener |
| US5392498A (en) * | 1992-12-10 | 1995-02-28 | The Proctor & Gamble Company | Non-abrasive skin friendly mechanical fastening system |
-
1996
- 1996-11-05 CN CN96112033A patent/CN1055654C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4846815A (en) * | 1987-01-26 | 1989-07-11 | The Procter & Gamble Company | Disposable diaper having an improved fastening device |
| EP0324577A1 (en) * | 1988-01-11 | 1989-07-19 | Minnesota Mining And Manufacturing Company | Disposable diaper with improved hook fastener portion |
| US5077870A (en) * | 1990-09-21 | 1992-01-07 | Minnesota Mining And Manufacturing Company | Mushroom-type hook strip for a mechanical fastener |
| US5392498A (en) * | 1992-12-10 | 1995-02-28 | The Proctor & Gamble Company | Non-abrasive skin friendly mechanical fastening system |
| US5339499A (en) * | 1993-02-16 | 1994-08-23 | Velcro Industries B.V. | Hook design for a hook and loop fastener |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1153701A (en) | 1997-07-09 |
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