CN109130035B

CN109130035B - Glue filling mould

Info

Publication number: CN109130035B
Application number: CN201710457392.8A
Authority: CN
Inventors: 周朝木
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-06-16
Filing date: 2017-06-16
Publication date: 2022-02-11
Anticipated expiration: 2037-06-16
Also published as: CN109130035A

Abstract

The invention discloses a glue filling mould, which comprises a mould seat, wherein the top surface of the mould seat is an arc surface, the arc surface is used for attaching a pair of supporting cloth belts of a zipper and is transversely provided with a strip-shaped arc-shaped protruding edge in a protruding way, the arc-shaped protruding edge is provided with a wedge-shaped tip end which is used for being inserted into a gap formed between the pair of supporting cloth belts, so that the gap can be supported by the arc-shaped protruding edge and transversely moves along the arc-shaped protruding edge, and the surface of the arc-shaped protruding edge is longitudinally provided with a glue filling opening connected with at least one extruder; and hot melt elastic glue which is extruded from the at least one extruder and is injected into each gap adjacent to the inside of the two rows of continuous buckling assemblies of the gap and the inner edges of the pair of supporting cloth belts through the glue injection port, and the hot melt elastic glue in the gap of the zipper is divided to form an anti-seepage structure of the zipper.

Description

Glue filling mould

Technical Field

The present invention relates to a glue-filling mold, and more particularly to a glue-filling mold capable of filling hot-melt elastic glue into gaps between adjacent two rows of continuous fastening assemblies in a zipper, so as to make the zipper have an anti-seepage function.

Background

As the zipper is commonly seen in the life of people, the zipper is an indispensable opening and closing device, and because the zipper has the convenience of opening and closing and the universality of application, the zipper is commonly used in clothes, such as clothes or trousers, carrying devices, such as leather bags or backpacks, camping appliances, such as tents, sleeping bags and the like.

In fact, in order to achieve the windproof and waterproof functions of the aforesaid products, the choice of materials has been focused on waterproofing, for example, the outer cloth of the snowcoat is treated with nylon or water, or a waterproof lining is added, so as to achieve the waterproof function. The zipper as an opening and closing device has the disadvantage of water-proof function, and particularly, gaps between a central gap and a buckling component of the zipper are inevitably opened by generated transverse pulling force when in use, and the gap and the gaps are the parts which are difficult to overcome by the water-proof function of the zipper all the time, so that the water-proof effect of the whole zipper is failed or greatly reduced, which is the disadvantage of lacking in beauty.

In view of the above-mentioned disadvantages, those skilled in the art have developed a zipper with an overall structure that prevents fluid from penetrating the zipper, and the known anti-leakage zippers, such as U.S. Pat. No. 3,501,816 and U.S. Pat. No. 5,437,888, disclose that elastic glue is injected into the zipper from the outer portion of two rows of engaged fastening components and covers the outer portions of the two rows of fastening components. The elastic glue used for seepage control is not injected into the adjacent gaps in the fastening components from the gap of the pair of supporting cloth belts. Therefore, the elastic glue of the anti-seepage zippers is coated on the outer surfaces of the two rows of buckling assemblies, so that the elastic glue is in direct contact with a zipper puller, great friction is generated between the elastic glue and the zipper puller, the elastic glue is abraded by the zipper puller, the service life is shortened, the opening and closing of the zipper are extremely unsmooth, and the zipper also becomes thick and heavy and loses the soft characteristic. The anti-seepage zipper cannot be applied to common portable clothes or bags, but can only be applied to special anti-seepage purposes such as diving suits and the like, and needs to be improved.

Disclosure of Invention

The present invention is directed to a glue injection mold, wherein a glue injection opening of the mold can inject hot-melt elastic glue into gaps and gaps between two rows of continuous fastening assemblies of a zipper through a gap between a pair of supporting cloth tapes of the zipper, so that the zipper becomes an anti-seepage zipper.

To achieve the above object, the present invention provides a glue-filling mold, which comprises: a die holder, it has a zipper supporting platform whose top surface is an arc surface, said arc surface is used for a pair of supporting cloth belts of a zipper to paste and transversely set up a long strip-shaped arc-shaped protruding tomb, two ends of said arc-shaped protruding tomb are respectively equipped with a front end and a rear end, said front end is equipped with a wedge-shaped point end for inserting into a gap formed between said pair of supporting cloth belts, so that said gap can be transversely moved along said arc-shaped protruding tomb, and on the surface of said arc-shaped protruding tomb a glue-injecting hole connected with at least one extruder is longitudinally opened; and hot melt elastic glue which is extruded from the at least one extruder and is injected into each gap adjacent to the inside of the two rows of continuous buckling assemblies of the gap and the inner edges of the pair of supporting cloth belts through the glue injection port, and the hot melt elastic glue in the gap of the zipper is divided to form an anti-seepage structure of the zipper.

The invention aims at providing an anti-seepage zipper made of the glue pouring mold.

It is another object of the present invention to provide an article, such as a garment or pants, a carrying device, such as a purse or backpack, a camping gear, such as a tent, a sleeping bag, using the aforementioned impervious zipper.

Drawings

To further disclose the technical contents of the present invention, please refer to the attached drawings, wherein:

FIG. 1 is a perspective view of a first embodiment of a glue-pouring mold of the invention;

FIG. 2 is a perspective view of a second embodiment of the glue-pouring mold of the present invention;

FIG. 3 is a cross-sectional view of the slide fastener before the step of filling the sealant into the slide fastener;

FIG. 4 is a schematic view of the zipper of FIG. 3 installed in a potting mold;

FIG. 5 is a cross-sectional view of the glue-pouring mold shown in FIG. 4 pouring glue into the zipper;

FIG. 6 is a cross-sectional view of a third embodiment of the glue-pouring mold of the invention;

FIG. 7 is a cross-sectional view of the glue-pouring mold shown in FIG. 6 after pouring glue into the zipper;

FIG. 8 is a perspective view of a fourth embodiment of the glue-pouring mold of the invention;

FIG. 9 is a cross-sectional view of the glue-pouring mold shown in FIG. 8 after glue-pouring is performed on the concealed slide fastener;

FIG. 10 is a perspective view of a fifth embodiment of the glue-pouring die of the present invention;

FIG. 11 is a perspective view of a sixth embodiment of the glue-pouring mold of the invention;

FIG. 12 is a cross-sectional view of the mold of FIG. 11 after molding the woven zipper; and

FIG. 13 is a cross-sectional view of the mold shown in FIG. 6 after double-sided glue filling of the zipper.

Detailed Description

In order that the objects, technical solutions and advantages of the present invention will become more apparent, the present invention will be further described in detail with reference to the accompanying drawings in conjunction with the following specific embodiments.

Referring to fig. 1, which shows a perspective view of a first embodiment of the glue-pouring mold 1 of the present invention, the glue-pouring mold 1 includes a mold base 11, the mold base 11 is provided with a zipper supporting platform 12 having an arc surface 13 formed on a top surface thereof, a strip-shaped arc-shaped protruding edge 14 is transversely protruded on the arc surface 13, two ends of the arc-shaped protruding edge 14 are respectively provided with a front end 141 and a rear end 142, and a glue injection opening 15 connected to at least one extruder 2 is longitudinally opened at an approximate central position of the arc-shaped protruding edge 14. The width and height of the curved flange 14 and the size of the glue injection opening 15 are determined according to the size of a zipper, and the glue injection mold 1 can be provided with at least one heating device with appropriate power to keep a hot-melt elastic glue 21 continuously in a molten state.

As shown in fig. 2, which shows a perspective view of a second embodiment of the glue-pouring mold 1 according to the present invention, in order to provide the glue-pouring requirements for zippers with different sizes, the glue-pouring mold 1 further includes a fixing base 16, the fixing base 16 is provided with at least one fixing hole (not shown due to the projection angle relationship) opposite to the adjacent surface of the mold base 11, such as a screw hole and at least one connecting hole 111, such as a stepped through hole, and is locked to each fixing hole by a connecting member 112, such as a screw rod, passing through each connecting hole 111, so as to mount the mold base 11 on the fixing base 16 or dismount the mold base 11 from the fixing base 16.

As shown in fig. 3, which shows a cross-sectional view of a zipper 3 before glue filling process is performed in a fastened state, the zipper 3 includes a pair of support tapes 31 arranged in parallel, a gap 313 is formed between the pair of support tapes 31, and each support tape 31 has a first surface 311 and a second surface 312 arranged oppositely; and two rows of continuous fastening components 32 are respectively arranged on the inner side edge of each second surface 312 of the pair of supporting cloth belts 31, a fastening state is formed at the position of the gap 313, a gap 321 is respectively formed between the fastening components 32 adjacent to each row, each fastening component 32 is provided with a bottom layer 322, a top layer 323 and an inner cavity 324, and the inner cavity 324 is provided with a core wire 325.

As shown in fig. 4, which shows a schematic view of the zipper 3 being installed on the glue-pouring mold 1, one side, for example, the front side, of the glue-pouring mold 1 is provided with a front guide wheel 41 of the transmission mechanism 4, and the other side, for example, the rear side, is provided with a rear guide wheel 42 of the transmission mechanism 4. The zipper 3 is guided and pressed by the front guide wheel 41 and the rear guide wheel 42 to be attached to the arc surface 13 of the potting mold 1. The force of the zipper 3 applied to the curved ledge 14 is directly proportional to the pressure of the hot melt adhesive 21, i.e., the force of the zipper 3 applied to the curved ledge 14, and thus the pressure of the hot melt adhesive 21, can be adjusted by adjusting the positions of the front guide wheel 41 and the rear guide wheel 42. Furthermore, the height of the hot-melt elastic glue 21 in the gap 313 can be adjusted by the height position of the rear guide wheel 42; when the rear guide wheel 42 is in a lower position, the arc-shaped protruding edge 14 can be fully contacted with the zipper 3; when the rear guide wheel 42 is positioned higher, the zipper 3 is separated from the curved flange 14 at a certain point along the longitudinal length of the curved flange 14, so that the height of the separation point of the zipper 3 from the curved flange 14 determines the height of the hot melt elastic glue 21 in the gap 313.

Referring to fig. 1, 4 and 5, the front end 141 and the rear end 142 of the arc-shaped protrusion 14 have substantially the same height, and the front end 141 forms a wedge-shaped tip 143, so that the arc-shaped protrusion 14 can be stably cut into the gap 313 of the pair of support tapes 31, and the gap 313 can move laterally along the arc-shaped protrusion 14. Wherein the height of the arc-shaped protruding rail 14 is less than or equal to the thickness of the pair of supporting cloth belts 31, and the supporting cloth belts 31 are used as isolating layers to avoid the damage caused by the direct contact of the high-temperature arc-shaped protruding rail 14 with the bottom layer 322 of the two rows of fastening components 32; for example, if the thickness of the pair of supporting tapes is 0.55mm, the height of the curved ledge 14 is less than or equal to 0.55mm, but preferably less than 0.50 mm. In the glue filling process, the gap 313 of the pair of supporting tapes 31 is inserted into the curved ledge 14, and the extruder 2 extrudes the hot-melt elastic glue 21 from the glue injection port 15 through the gap 313 so as to fill the gap 321 and a part of the gap 313 adjacent to each other inside the fastening assembly 32.

As mentioned above, the curved ridge 14 and the glue injection opening 15 in the gap 313 are very close to the fastening elements 32, so that the hot-melt elastic glue 21 extruded through the glue injection opening 15 of the curved ridge 14 having the same height of the front and

rear ends

141 and 142 will be mostly filled in the adjacent gap 321 inside the fastening elements 32, while the rest is a part of the gap 313 of the pair of support tapes 31. As mentioned above, by adjusting the height of the rear guide wheel 42, the height of the hot-melt elastic glue 21 in the gap 313 can be properly adjusted, even if the hot-melt elastic glue 21 is further injected into the inner cavity 324 of each of the fastening elements 32, so that the hot-melt elastic glue 21 filled in the gap 321, the gap 313 and the inner cavity 324 can be linked together to form an optimal connection relationship with the fastening elements 32. As shown in FIG. 3, since the wick 325 is disposed within the interior chamber 324, it is necessary to fill the hot melt elastomer 21 into the interior chamber 324 by the relatively wide arcuate bead 14 and the relatively high fill pressure.

Therefore, if the height of the arc-shaped rail 14 is 0.45mm and the thickness of the pair of support tapes 31 is 0.50mm, the height of the hot-melt elastic adhesive 21 in the gap 313 is at least about 0.05 mm. In addition, by appropriately increasing the width of the curved flange 14, the width of the gap 313 can be increased to increase the stability of the movement of the zipper 3 on the curved flange 14, and to increase the volume of the hot-melt elastic glue 21 injected into the gap 321 adjacent to the inside of the fastening assembly 32 and the width in the gap 313.

In fact, the dimension of the curved flange 14 is greater than the dimension of the gap 313 when not subjected to a transverse pulling force, and is set according to the size of the zipper 3, i.e. in the case of a continuous-loop nylon zipper (C-type zipper), the width of the curved flange 14 for the zippers No. 3 and No. 5 is about 0.3mm to 1.2mm greater than the width of the gap 313, and the concealed zippers No. 8, No. 10 and No. 5 are about 0.5mm to 3.0 mm; since the coupling elements of the woven slide fastener (S-type) and the continuous clip type slide fastener (L-type) are coupled with the support tapes stably, the width of the arcuate beads 14 of the woven slide fastener (S-type zipper) and the continuous clip type slide fastener (L-type zipper) of a size similar to the aforementioned continuous loop type nylon zipper can be a little smaller than that of the continuous loop type nylon zipper, for example, the width of the arcuate beads 14 of S40, S60, L #3 and L #5 is increased by about 0.3mm to 1.0mm, and S80, S100, L #8 and L #10 are increased by about 0.3mm to 1.8 mm. The width of the arc-shaped protruding edge 14 is about 0.3mm to 3.0mm, which is about 0.3mm to 3.0mm larger than the original width of the gap 313, so that the arc-shaped protruding edge 14 can be provided with a wider glue injection opening 15, so as to prevent the glue injection opening 15 from being blocked by the overlapping part of the mutual buckling of the buckling components 32, thereby reducing the difficulty of glue injection.

If the filling pressure of the hot-melt elastic glue 21 is increased or the shape of the fastening elements 32 is adjusted, the hot-melt elastic glue 21 can be ensured to fill the gaps 321 adjacent to each other in the fastening elements 32 and can be further injected into a part and/or all of the inner cavity 324, so as to prevent the hot-melt elastic glue 21 from falling off from the fastening elements 32 and improve the anti-seepage function and durability.

Referring to fig. 5, it is shown that the relationship between the glue-pouring mold film and the zipper is during glue-pouring, when the zipper 3 is in the fastened state, the core line 325 is disposed in the inner cavity 324, so that the wider arc-shaped flange 14 and the larger pouring pressure are needed, wherein the pouring pressure can be achieved by increasing the tightness of the zipper 3 adhering to the arc-shaped flange 14, so as to fill the hot-melt elastic glue 21 in the gap 321, the inner cavity 324 and the gap 313 adjacent to the fastening assembly 32, and then a dividing procedure, such as longitudinal division by a cutter (indicated by dividing line 314), is performed on the hot-melt elastic glue 21 in the gap 313 of the pair of support tapes 31, so that the zipper 3 becomes an impermeable structure with impermeable function by glue-pouring processing of the glue-pouring mold 1. As mentioned above, the wider arched ridge 14 can enlarge the gap 313 and reduce the overlapped portion of the fastening elements 32, which is equal to the width of the gap 313 enlarged by the transverse pulling force when the zipper 3 is used, so as to reduce the width of the dividing line 314 of the hot-melt elastic adhesive 21 in the gap 313 and further improve the anti-seepage function of the zipper.

As shown in fig. 6, which shows a cross-sectional view of a third embodiment of the glue-pouring mold 1, compared to the first embodiment with the same reference numerals (symbols) used to refer to the same components and provide the same functions, since the present embodiment shares many shared components with the previous embodiment, only the differences between the present embodiment and the first embodiment will be described as follows: the height of the front end 141 of the curved hump 14 is greater than the height of the rear end 142; and a bevel groove 151 with a decreasing depth connecting the glue injection port 15 to the rear end 142, so that, as mentioned above, when the rear guide wheel 42 is at a lower position, the height of the rear end 142 can control the height of the hot-melt elastic glue 21 in the gap 313; when the rear guide wheel 42 is at a high position, the zipper 3 is separated from the curved flange 14 at a certain point along the longitudinal length of the curved flange 14, so that the height of the separation point of the zipper 3 from the curved flange 14 determines the height of the hot-melt elastic glue 21 in the gap 313. Furthermore, the depth of the inclined groove 151 decreases to zero towards the rear end 142, so that the surface of the rear end 142 has a predetermined length, for example, at least 1mm is a floating surface 144 without groove, and the floating surface 144 is used for floating the surface of the hot-melt elastic glue 21 in the gap 313.

As mentioned above, the glue injection opening 15 directly fills the hot-melt elastic glue 21 into the gap 321 and the inner cavity 324 adjacent to each other inside the fastening assembly 32, and the hot-melt elastic glue 21 extruded through the inclined groove 151 is used to fill the gap 313 and form the strip-shaped hot-melt elastic glue 21 in the gap 313, so that the height of the hot-melt elastic glue 21 in the gap 313 is gradually increased from the bottom layer 322 of the fastening assembly 32 to the first surface 311, which can prevent the hot-melt elastic glue 21 from sticking to the first surface 311. Since the rear end 142 of the arcuate flange 14 has the floating surface 144 with a length of 1mm or more, the floating surface 144 is used to float the surface of the hot-melt elastic glue 21 in the gap 313. Therefore, the height of the rear end 142 and the height of the rear guide wheel 42 are used to determine the height of the hot-melt elastic adhesive 21 in the gap 313, for example, the height of the rear end 142 is 0.15mm, and if the thickness of the pair of chain support tapes 31 is 0.50mm, the height of the hot-melt elastic adhesive 21 in the gap 313 is at least about 0.35 mm.

As shown in fig. 7, which shows a cross-sectional view of the third embodiment of the glue-pouring mold 1 for pouring glue into a zipper, since the curved protrusion 14 has the inclined groove 151 and the rear end 142 is lower than the front end 141, the hot-melt elastic glue 21 fills the gap 321 inside the fastening assembly 32 and the gap 313 between the pair of support tapes 31, when the rear guide wheel 42 is at a lower position, and the distance from the first surface 311 of the hot-melt elastic glue 21 in the gap 313 is approximately equal to the height of the rear end 142 of the curved protrusion 14. As mentioned above, by adjusting the width and filling pressure of the arc-shaped flange 14, when the hot-melt elastic glue 21 is injected into the gap 313 and the slit 321 and the inner cavity 324 of the fastening element 32, the hot-melt elastic glue 21 can continuously cover the bottom layer 322 and the inner cavity 324 of the fastening element 32 to form a continuous body, thereby improving the anti-seepage effect of the zipper. Finally, the strip-shaped hot-melt elastic adhesive 21 with the gap 313 is longitudinally divided (indicated by a dividing line 314), so that the zipper 3 becomes a separable seepage-proofing structure with seepage-proofing function through the glue filling processing of the glue filling mold 1.

Fig. 8 and 9 show a schematic view of a fourth embodiment of the glue-pouring mold 1, and an impermeable zipper manufactured by using the glue-pouring mold 1. Since the present embodiment shares many shared components with the previous embodiments, only the differences between the present embodiment and the third embodiment will be described as follows: the front end 141 and the rear end 142 of the curved holy 14 are substantially the same height; the glue injection port 15 is connected to an elongated groove 152 toward the rear end 142, the elongated groove 152 extends to the rear end 142 of the arc-shaped protruding edge 14, and the opening of the elongated groove 152 enables the hot-melt elastic glue 21 to be filled in the gap 313 and further protrude out of the first surface 311 of the pair of supporting strips 31.

Therefore, the appearance of the hot-melt elastic adhesive 21 in the gap 313 can be changed by the different cross-sectional shapes of the long groove 152, such as [ M-shape ] or [ arc shape ], which can show the appearance of the hot-melt elastic adhesive 21 on the first surfaces 311 of the pair of support tapes 31 and effectively improve the anti-seepage effect. As shown in fig. 9, the zipper 3 is a continuous coil type zipper (C-type zipper), which is configured with a special zipper head to accommodate the protruded hot-melt elastic glue 21, for example, a gap extending from the front end to the tail end of the zipper head is designed corresponding to the path of the hot-melt elastic glue 21 in the zipper head, so as to avoid the friction between the hot-melt elastic glue 21 and the zipper head, which is not repeated herein since it belongs to the prior art. Finally, the gap 313 longitudinally divides the strip-shaped hot-melt elastic adhesive 21 (indicated by a dividing line 314), so that the zipper 3 becomes a separable and impermeable structure with an impermeable function through the glue filling processing of the glue filling mold 1.

As shown in fig. 10, which shows a schematic diagram of a fifth embodiment of the glue-pouring mold 1, compared to the first embodiment where the same reference numerals (symbols) are used to indicate the same components and provide the same functions, since the present embodiment shares many shared components with the previous embodiment, only the differences between the present embodiment and the first embodiment are described as follows: the surface of the front end 141 of the curved protruding edge 14 is provided with a guiding groove 145, and the size and depth of the guiding groove 145 correspond to the size and shape of the two rows of fastening components 32, so as to guide the zipper 3 to stably run on the transverse axis 146 of the curved protruding edge 14, thereby improving the glue filling quality and efficiency of the zipper 3.

As shown in fig. 11, which shows a schematic view of a sixth embodiment of the glue-pouring mold 1, compared to the fifth embodiment, in which the same reference numerals (symbols) are used to denote the same components and provide the same functions, since the present embodiment shares many shared components with the previous embodiment, only the differences between the present embodiment and the fifth embodiment will be described as follows: the height of the front end 141 of the arc-shaped protruding edge 14 is greater than the height of the rear end 142, and the arc-shaped protruding edge 14 has a glue injection opening 15 and a second glue injection opening 15'.

The glue injection opening 15 is mainly used for injecting the hot-melt elastic glue 21 into the gap 321 and the inner cavity 324 adjacent to each other inside the fastening assembly 32, the second glue injection opening 15 'is connected to a slope groove 151 facing the rear end 142, and the second glue injection opening 15' and the slope groove 151 can inject the hot-melt elastic glue 21 into the gap 313 of the pair of support tapes 31.

The glue-pouring mold 1 of the present embodiment can be connected to an extruder so as to utilize the glue-pouring port 15 and the second glue-pouring port 15' to respectively pour the hot-melt elastic glue 21 into the gap 321, the cavity 324 and the gap 313 adjacent to each other inside the fastening assembly 32.

Alternatively, as shown in fig. 12, the glue injection port 15 and the second glue injection port 15 ' of the present embodiment can be respectively connected to an extruder, so that two hot-melt

elastic glues

21 and 21a with different materials or colors can be injected through the glue injection port 15 and the second glue injection port 15 ', the hot-melt elastic glue 21 of the glue injection port 15 is injected into the gap 321, the cavity 324 and a part of the gap 313 adjacent to the inside of the fastening element 32 of the coreless woven zipper 3, and the hot-melt elastic glue 21a of the second glue injection port 15 ' is injected into the gap 313, so that the two hot-melt

elastic glues

21 and 21a form different materials or colors in the gap 321 adjacent to the inside of the fastening element 32 and the gap 313 of the pair of support tapes 31, respectively. The height of the rear guide roller 42 affects the height of the hot-melt elastic glue 21a in the gap 313. Finally, the strip-shaped hot-melt elastic adhesive 21 is longitudinally divided (indicated by a dividing line 314) in the gap 313, so that the zipper 3 becomes a separable seepage-proofing structure with seepage-proofing function through the glue filling processing of the glue filling mold 1.

In fact, the hot-melt elastic glue 21 is selected from hot-melt glue and Reactive hot-melt glue, such as, but not limited to, Reactive thermoplastic polyurethane (Reactive-TPU), Thermoplastic Polyurethane (TPU), silicone rubber (silicone), Nylon (Nylon), or thermoplastic polyester elastomer (TPEE).

Besides, the glue can be poured from the gap 313, or can be poured from the surface of the top layer 323 of the fastening component 32, i.e. from both sides, so as to enhance the anti-seepage function and increase the versatility of appearance.

Please refer to fig. 13, which is a cross-sectional view of the zipper after the zipper is subjected to double-sided glue filling by the glue filling mold shown in fig. 6, that is, if glue is to be filled from the surface of the top layer 323 of the zipper 3, a separation layer is still needed to prevent the high-temperature glue filling mold (not shown) from contacting the fastening elements 32, and the solution is to provide an auxiliary supporting cloth tape 33 on each surface of the top layer 323 of the two rows of fastening elements 32, so as to generate an auxiliary gap 331 between the auxiliary supporting cloth tapes 33. One and/or two hot-melt elastic adhesives 21 can be poured into the adjacent gaps 321 inside the fastening assemblies 32 or further into the inner cavities 324 from the gaps 313 and the auxiliary gaps 331, respectively, so that the gaps 313 and the auxiliary gaps 331 have the elongated hot-melt elastic adhesives 21 therein, respectively.

In fact, the auxiliary support tapes 33 not only can isolate the glue filling mold and form the auxiliary gap 331 for glue filling, but also can increase the bonding strength of the fastening elements 32 and the pair of support tapes 31. Therefore, the feeding length of the pair of auxiliary support tapes 33 can be slightly longer than that of the pair of support tapes 31 at the time of sewing, so as to improve the flexibility of the barrier zipper. Finally, the strip-shaped hot-melt elastic adhesive 21 is longitudinally divided (indicated by dividing line 314) in the gaps 313 and 331, respectively, so that the zipper 3 becomes a separable seepage-proofing structure with seepage-proofing function through the glue filling processing of the glue filling mold 1.

The anti-leakage zipper is selected from, for example, a woven-type zipper (S-type zipper), a continuous-coil type nylon zipper (C-type zipper) with a core wire, a continuous-coil type concealed zipper (C-type zipper), or a continuous-coil type concealed zipper (L-type zipper), wherein the continuous-coil type nylon zipper or the continuous-coil type concealed zipper is selectively matched with the pair of auxiliary support tapes 33, or the continuous-coil type nylon zipper or the continuous-coil type concealed zipper without a core wire is selectively matched to maintain flexibility of the zipper and to perform a glue filling process. In addition, in order to further improve the anti-seepage function of the anti-seepage zipper, a water-splashing prevention processing procedure can be performed after the glue pouring procedure, and the water-splashing prevention processing procedure is known in the prior art and is not described herein again.

To further enhance the anti-seepage function of the anti-seepage zipper, a waterproof layer 34 can be disposed on the first surface 311 of the anti-seepage zipper and the hot-melt elastic glue 21 in the gap 313 to cover the first surface and the second surface after the glue pouring process. The waterproof layer according to the embodiment shown in fig. 13 may be attached to at least one of the first surface 311 or the second surface 312 of the pair of support cloth tapes 31. The waterproof layer 34 may be a patterned, transparent or opaque coating layer, a waterproof film laminate or a film laminate. The adhesive layer to which the waterproof film is attached may be a hot melt adhesive, a heat reactive hot melt adhesive, a moisture reactive hot melt adhesive, a two-component solvent adhesive, or a water-based Thermoplastic Polyurethane (TPU), and the waterproof layer may be partially or entirely processed on the second surface 312 of the pair of support tapes 31.

Therefore, through the description of various embodiments of the glue filling mold 1, the conventional zipper can become an anti-seepage zipper through the glue filling process of the glue filling mold 1.

Further, the barrier zipper can be adapted for use in articles of clothing, such as clothing or pants, carrying devices, such as purses or backpacks, camping gear, such as tents, sleeping bags, and the like, to provide barrier functionality to such articles.

Therefore, through the implementation of the invention, the gained efficacy is 33638or 33638which is counted as follows:

1. the glue filling mould utilizes the height, the width and the shape of the arc-shaped protruding edge to fill the hot-melt elastic glue into the gap of the zipper and the gap adjacent to the inside of the buckling assembly through the glue filling opening, and the surface of the hot-melt elastic glue in the gap is lower than the pair of supporting cloth belts, or the surface of the hot-melt elastic glue in the gap is higher than the pair of supporting cloth belts, so that the zipper has a basic anti-seepage function.

2. The glue filling mould can inject the same or different hot melt elastic glue into the gap adjacent to the inside of the buckling component of the zipper and the gap of the pair of supporting cloth belts in a time division manner, so that the hot melt elastic glue in the gap and the other hot melt elastic glue in the gap are different in material or color.

3. After the glue filling process is carried out on the anti-seepage zipper, a water splashing prevention process can be added, so that the anti-seepage function of the anti-seepage zipper is improved.

4. After the glue filling process is carried out on the anti-seepage zipper, a waterproof layer can be added on at least one surface of the pair of supporting cloth belts of the zipper, so that the anti-seepage function of the zipper is further improved.

It is intended that all such alterations and modifications in the preferred embodiment, and all such modifications and variations that fall within the true spirit and scope of the invention, are desired to be understood by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. A glue-pouring mold, comprising:

a die holder, it has a zipper supporting platform whose top surface is an arc surface, said arc surface is used for a pair of supporting cloth belts of a zipper to paste and transversely set up a long strip-shaped arc-shaped protruding tomb, two ends of said arc-shaped protruding tomb are respectively equipped with a front end and a rear end, said front end is equipped with a wedge-shaped point end for inserting into a gap formed between said pair of supporting cloth belts, so that said gap can be transversely moved along said arc-shaped protruding tomb, and on the surface of said arc-shaped protruding tomb a glue-injecting hole connected with at least one extruder is longitudinally opened; and

hot melt elastic glue is extruded from the at least one extruder and injected into the gaps adjacent to the inside of the two rows of continuous buckling assemblies at the gap and the inner edges of the pair of supporting cloth belts through the glue injection port, and the hot melt elastic glue in the gap of the zipper is divided to form an anti-seepage structure of the zipper.

2. The glue-pouring mold according to claim 1, wherein the glue-pouring mold further comprises a fixing base, the fixing base is provided with at least one fixing hole and at least one connecting hole opposite to the adjacent surface of the mold base, and the mold base is mounted on the fixing base by a connecting member passing through each connecting hole and being locked to each fixing hole.

3. The glue-pouring mold of claim 1, wherein the arc-shaped protruding edge is provided with a guiding groove on the surface of the front end, and the guiding groove can guide and accommodate the two rows of continuous buckling assemblies.

4. The glue-pouring mold of claim 1, wherein the height of the arc-shaped protruding edge is lower than the thickness of the pair of supporting cloth belts, so that the hot-melt elastic glue fills the gap, the gap and an inner cavity of each fastening component.

5. The dispensing mold of claim 1, wherein the dispensing opening is connected to an inclined groove toward the rear end, and a height of a rear guide wheel of a transmission mechanism is adjusted according to a height of the rear end to control a height of the hot-melt elastic glue in the gap.

6. The dispensing mold of claim 1, wherein the surface of the rear end has a troweling surface of a predetermined length for troweling the surface of the hot-melt elastic glue located in the gap.

7. The dispensing mold of claim 1, wherein the dispensing opening is connected to an elongated groove extending to the rear end in a direction toward the rear end, so that the hot-melt elastic glue can be filled in the gap or further protrude out of the gap.

8. The glue filling mold according to claim 1, wherein the glue filling opening is connected to a slope groove toward the rear end, and the width of the arc-shaped ridge is 0.3mm to 3.0mm larger than the width of the gap under a state of not being subjected to a lateral pulling force.

9. The glue-pouring mold according to claim 1, wherein the height of the front end of the arc-shaped flange is greater than the height of the rear end, and the arc-shaped flange has the glue-pouring opening and a second glue-pouring opening, wherein the second glue-pouring opening is connected to an inclined groove toward the rear end, the second glue-pouring opening and the inclined groove can pour the hot-melt elastic glue into the gap, and the second glue-pouring opening is connected to at least one of the extruders, so that the different hot-melt elastic glues sent from the extruders are respectively filled into the gap and the gap adjacent to each other in the two rows of continuous fastening assemblies, and the hot-melt elastic glue in the gap and the other hot-melt elastic glue in the gap are made of different materials or colors.

10. A casting mold according to claim 1, wherein the hot melt elastomeric glue is selected from Reactive thermoplastic polyurethane (Reactive-TPU), Thermoplastic Polyurethane (TPU), silicone (silicone), Nylon (Nylon) or thermoplastic polyester elastomer (TPEE).

11. The dispensing mold of claim 1, wherein the zipper is selected from a continuous loop woven zipper, a continuous loop nylon zipper, a continuous loop concealed zipper, or a continuous clip zipper.