阅读说明：本技术 一种防水拉链及其制备方法 (Waterproof zipper and preparation method thereof ) 是由 钟建邦 钟华珍 于 2019-11-29 设计创作，主要内容包括：本发明提供一种防水拉链的制备方法,包括以下步骤：供料,定寸,贴片,冲孔以及成型上止。本发明还提供一种防水拉链,包括带有链牙的两条链带,所述链牙上表面具有缺槽,两条所述链带具有链牙区和上止缺牙区,所述上止缺牙区的一侧粘贴有贴片,所述上止缺牙区注塑成型有上止,所述上止具有片状部和主体部,所述片状部成型于和贴片相对的另一侧,所述主体部具有容纳部和通路部,所述通路部的两侧形成两个插入腿部,并且两个插入腿部均具有填充到至少一个链牙的缺槽内的延伸部,本发明能够避免拉头活动到上至与链牙连接处时卡死,使拉头活动顺畅,降低拉头与上止的摩擦,提高上止的强度,提高防水密封性和使用寿命,可生产任意长度的拉链。(The invention provides a preparation method of a waterproof zipper, which comprises the following steps: feeding, sizing, pasting, punching and forming top stop. The invention also provides a waterproof zipper, which comprises two chain belts with chain teeth, wherein the upper surfaces of the chain teeth are provided with notches, the two chain belts are provided with a chain tooth area and an upper stop tooth area, one side of the upper stop tooth area is adhered with a patch, the upper stop tooth area is injection molded with an upper stop, the upper stop is provided with a sheet part and a main body part, the sheet part is molded at the other side opposite to the patch, the main body part is provided with a containing part and a passage part, two insertion leg parts are formed at two sides of the passage part, and the two insertion leg parts are respectively provided with an extending part filled in the notch of at least one chain tooth.)

1. A preparation method of a waterproof zipper is characterized by comprising the following steps: the method comprises the following steps:

step 1: the chain tooth cutting device comprises a feeding device, a cutting device and a cutting device, wherein two chain belts with chain teeth are cut according to production requirements, the chain teeth comprise chain tooth bodies, necks and heads, and the upper surfaces of the chain tooth bodies are provided with notches;

step 2: sizing, namely removing chain teeth which need to be left out on the two chain belts according to the required size on the two chain belts, and exposing through holes for forming the chain teeth to form a chain tooth area and an upper stop tooth lacking area;

and step 3: the patch is pasted on one side of the upper tooth-stopping area, so that two ends of the patch respectively extend to the two chain belts and cover the through holes corresponding to the upper tooth-stopping area;

and 4, step 4: cutting a hole, namely cutting a preformed hole for forming an accommodating part in an upper tooth missing area, close to a chain tooth area, of the paster, wherein the accommodating part corresponds to a guide column of the slider;

and 5: the shaping is gone up, goes up two chain belts and is formed with the one end that goes up and to go up the tooth district and put into injection moulding in the forming die and go up the end, makes and goes up to go up and has slice portion and main part, slice portion shaping in the opposite side relative with the paster, the main part has the shaping in the portion of holding of reservation hole department, the portion of holding is formed with the route portion that communicates with the portion of holding near the one end in chain tooth district, the both sides of route portion form two and insert the shank, two insert the shank and be located the chain belt that corresponds respectively to two insert the shank and all have the extension of filling the scarce inslot of at least one chain tooth.

2. The method for producing a waterproof slide fastener according to claim 1, characterized in that: in step 1, the extending direction of the notch is the same as the longitudinal direction of the fastener tape.

3. The method for producing a waterproof slide fastener according to claim 1, characterized in that: in the step 4, a through hole is reserved in the upper tooth-missing stopping area of the reserved hole, which is close to the chain tooth area.

4. The method for producing a waterproof slide fastener according to claim 1, characterized in that: in step 5, one end portion of the patch is covered with the body.

5. The method for producing a waterproof slide fastener according to claim 1, characterized in that: in step 5, the sheet portion, the body portion, and the insertion leg portion are integrally molded.

6. The method for producing a waterproof slide fastener according to claim 5, characterized in that: the sheet part is partially embedded in the through hole, and the sheet part is higher than the surface of the chain belt.

7. The method for producing a waterproof slide fastener according to claim 1, characterized in that: one end of the extending part, which is far away from the accommodating part, extends out of the notch and protrudes to the outer side of the notch.

8. A waterproof slide fastener is characterized in that: including two chain belts that have the chain tooth, the chain tooth includes chain tooth main part, neck and head, chain tooth main part upper surface has scarce groove, two the chain belt has the chain tooth district that forms after detaching the chain tooth and goes up and lack the tooth district, it exposes the through-hole that is used for shaping chain tooth to go up to lack the tooth district, it pastes and has the paster to go up one side that goes up to lack the tooth district, the both ends of paster extend to two chain belts respectively to cover and go up and lack the through-hole that the tooth district corresponds, the paster is close to the last tooth district that goes up that the chain tooth district lacks the tooth district and is equipped with the preformed hole, it has last tooth to go up to lack tooth district injection moulding, it has slice portion and main part to go up, slice portion shaping is in the opposite side relative with the paster, the main part has the portion of holding in preformed hole, the one end that the holding portion is close to chain tooth district has the passageway portion that communicates with, the two insertion leg portions are respectively located on the corresponding chain belts, and each of the two insertion leg portions has an extension portion filled in the notch of at least one of the fastener elements.

9. The waterproof slide fastener according to claim 7, wherein: the extending direction of the notch is the same as the length direction of the chain belt.

10. A water resistant zipper as defined in claim 9, wherein: one end of the extending part, which is far away from the accommodating part, extends out of the notch and protrudes to the outer side of the notch.

Technical Field

The invention relates to the technical field of zippers, in particular to a waterproof zipper and a preparation method thereof.

Background

The zipper is one of the common and indispensable important elements in daily life, and articles such as clothes, storage bags or shoes can provide the function of quickly opening and closing the opening of the article due to the installation of the zipper, so as to improve the convenience of human life. With the increasing population of outdoor work, outdoor exercises and traveling, there is a growing demand for waterproof zippers to prevent wind and rain from blowing through or infiltrating clothes, trousers, coats, bags and the like in the wind or rain in response to weather changes.

The waterproof zipper mainly comprises two chain belts with chain teeth, an upper stop and a pull head, in the existing waterproof zipper, the main body part is not connected with the zipper teeth, so that the zipper is easy to be blocked when the slider moves to the connecting part of the main body part and the zipper teeth, which makes the waterproof zipper difficult to be zipped and needs a large force, affects the convenience of the zipper, when the waterproof zipper is used repeatedly for a period of time, the main body part is abraded due to repeated friction of the zipper for a long time, the waterproof sealing performance is reduced, the service life is prolonged, and simultaneously, a patch is arranged at the upper stop to connect two chain belts, and then the upper stop is formed, but the strength of the upper stop is insufficient, the chain belt at the upper stop is easy to crack, in addition, when the existing zipper is produced, the zipper teeth and the upper stop are formed by punching and injection molding on the zipper belt with fixed length, and the production of zippers with any length cannot be realized.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the waterproof zipper and the preparation method thereof, which can prevent the zipper head from being stuck when the zipper head moves to the joint with the zipper teeth, so that the zipper head moves smoothly, is easy to open and close and pull, reduces the friction between the zipper head and the upper stop, improves the waterproof sealing property and the service life, improves the strength of the upper stop, can produce the zipper with any length, and has wide applicability.

In order to achieve the purpose, the invention adopts the following technical scheme:

a method for preparing a waterproof zipper comprises the following steps:

step 1: the chain tooth cutting device comprises a feeding device, a cutting device and a cutting device, wherein two chain belts with chain teeth are cut according to production requirements, the chain teeth comprise chain tooth bodies, necks and heads, and the upper surfaces of the chain tooth bodies are provided with notches;

step 2: sizing, namely removing chain teeth which need to be left out on the two chain belts according to the required size on the two chain belts, and exposing through holes for forming the chain teeth to form a chain tooth area and an upper stop tooth lacking area;

and step 3: the patch is pasted on one side of the upper tooth-stopping area, so that two ends of the patch respectively extend to the two chain belts and cover the through holes corresponding to the upper tooth-stopping area;

and 4, step 4: cutting a hole, namely cutting a preformed hole for forming an accommodating part in an upper tooth missing area, close to a chain tooth area, of the paster, wherein the accommodating part corresponds to a guide column of the slider;

and 5: the shaping is gone up, goes up two chain belts and is formed with the one end that goes up and to go up the tooth district and put into injection moulding in the forming die and go up the end, makes and goes up to go up and has slice portion and main part, slice portion shaping in the opposite side relative with the paster, the main part has the shaping in the portion of holding of reservation hole department, the portion of holding is formed with the route portion that communicates with the portion of holding near the one end in chain tooth district, the both sides of route portion form two and insert the shank, two insert the shank and be located the chain belt that corresponds respectively to two insert the shank and all have the extension of filling the scarce inslot of at least one chain tooth.

Preferably, in step 1, the extending direction of the notch is the same as the longitudinal direction of the fastener tape.

Preferably, in step 4, a through hole is reserved in the reserved hole close to the upper tooth-missing stopping area of the chain tooth area.

Preferably, in step 5, an end portion of the patch is covered with the body portion.

Preferably, in step 5, the sheet portion, the main body portion and the insertion leg portion are integrally formed.

Preferably, in step 5, the sheet part is embedded in the through hole, and the sheet part is higher than the surface of the chain belt.

Preferably, in step 5, one end of the extending portion, which is far away from the accommodating portion, extends out of the notch and protrudes to the outside of the notch.

A waterproof zipper comprises two chain belts with chain teeth, wherein the chain teeth comprise a chain tooth main body, a neck and a head, the upper surface of the chain tooth main body is provided with an unfilled groove, the two chain belts are provided with a chain tooth area and an upper stop tooth area which are formed after the chain teeth are removed, the upper stop tooth area is exposed with a through hole for forming the chain teeth, one side of the upper stop tooth area is pasted with a paster, two ends of the paster respectively extend towards the two chain belts and cover the through hole corresponding to the upper stop tooth area, the paster is provided with a preformed hole close to the upper stop tooth area of the chain tooth area, the upper stop tooth area is injection-molded with an upper stop, the upper stop has a sheet part and a main body part, the sheet part is formed on the other side opposite to the paster, the main body part is provided with a containing part formed in the preformed hole, one end of the containing part, which is close to the chain tooth area, is provided with a, two insertion leg parts are formed on two sides of the passage part and are respectively positioned on the corresponding chain belts, and each insertion leg part is provided with an extension part filled in the notch of at least one zipper element.

Preferably, the extending direction of the notch is the same as the longitudinal direction of the fastener tape.

Preferably, one end of the extending part, which is far away from the accommodating part, extends out of the notch and protrudes to the outer side of the notch.

Compared with the prior art, the waterproof zipper has obvious advantages and beneficial effects, specifically, 1, the upper stop is connected with the zipper teeth by arranging the notch extending along the length direction of the zipper belt on the zipper tooth main body and forming the extending part for filling the notch on the inserting leg part of the upper stop, so that the pull head is prevented from being clamped when moving to the position connected with the zipper teeth, the pull head is moved smoothly and is easy to open and close and pull, the use convenience of the zipper is improved, the friction between the pull head and the upper stop is reduced, the pulling force of the waterproof zipper and the abrasion of the upper stop are reduced, the waterproof sealing performance is improved, and the service life is prolonged; 2. one end of the extending part, which is far away from the accommodating part, extends out of the notch and protrudes outwards, so that the extending part is prevented from falling off, and the connection stability of the upper stop and the zipper teeth is improved; 3. the sheet part and the main body part are integrally formed, and the sheet part covers the through hole, so that the strength of the upper stop is improved, and the chain belt at the upper stop is prevented from cracking; 4. according to the requirements, two chain belts with chain teeth in any length are cut, part of the chain teeth are removed, and then the upper stop is formed, so that the zipper in any length can be produced, and the applicability is wide.

To more clearly illustrate the structural features and technical means of the present invention and the specific objects and functions attained thereby, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:

drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged partial view of portion A of FIG. 1;

FIG. 3 is a front view of an upper missing tooth zone of an embodiment of the present invention;

FIG. 4 is a schematic view of a patch of an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view taken at B-B of FIG. 4;

FIG. 6 is a top dead center elevational view of an embodiment of the present invention;

FIG. 7 is an enlarged partial view of portion C of FIG. 6;

FIG. 8 is a schematic cross-sectional view taken at D-D of FIG. 6;

FIG. 9 is a schematic cross-sectional view taken at E-E of FIG. 6;

fig. 10 is a schematic cross-sectional view at F-F in fig. 6.

The attached drawings indicate the following:

10-a strand; 11-a tooth element; 111-element body;

112-notch; 113-neck; 114-a head;

12-upper dead edentulous area; 13-preparing holes; 14-a through hole;

15-sticking a piece; 20-a body portion; 21-a sheet-like part;

22-a housing; 23-insertion of the leg; 231-an extension;

24-a passage portion.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the positions or elements referred to must have specific orientations, be constructed and operated in specific orientations, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

As shown in fig. 1 to 10, a method for manufacturing a waterproof zipper, comprising the steps of:

step 1: feeding, cutting two chain belts 10 with chain teeth 11 according to production requirements, wherein each chain tooth 11 comprises a chain tooth main body 111, a neck portion 113 and a head portion 114, the upper surface of each chain tooth main body 111 is provided with a notch 112, and the extending direction of each notch 112 is the same as the length direction of each chain belt 10;

step 2: sizing, namely removing chain teeth 11 which need to be left out on the two chain belts 10 according to the required size on the two chain belts 10, and exposing through holes 14 for forming the chain teeth 11 to form a chain tooth area and an upper stop tooth lacking area;

and step 3: a patch 15, wherein the patch 15 is attached to one side of the upper tooth stopping lacking area 12, so that two ends of the patch 15 respectively extend towards the two chain belts 10 and cover the through holes 14 corresponding to the upper tooth stopping lacking area 12;

and 4, step 4: cutting a preformed hole 13 for forming an accommodating part 22 in an upper tooth-missing region 12, close to a chain tooth region, of the patch 15, wherein the accommodating part 22 corresponds to a guide column of the slider, and a through hole 14 is preformed in the preformed hole 13 close to the upper tooth-missing region 12 of the chain tooth region;

and 5: the forming upper stop is characterized in that one end, provided with an upper stop tooth lacking area 12, of each of the two chain belts 10 is placed into a forming die to be subjected to injection molding, so that the upper stop is provided with a sheet part 21 and a main body part 20, the sheet part 21 is formed on the other side opposite to the patch 15, one end part of the patch 15 is covered by the main body part 20, the main body part 20 is provided with a containing part 22 formed in a reserved hole 13, one end, close to the chain tooth area, of the containing part 22 is provided with a passage part 24 communicated with the containing part 22, two inserting leg parts 23 are formed on two sides of the passage part 24, the two inserting leg parts 23 are respectively located on the corresponding chain belts 10, the two inserting leg parts 23 are respectively provided with an extending part 231 filled into the lacking groove 112 of at least one chain tooth 11, and one end, far away from the containing part 22, of the extending out of the lacking.

The sheet part 21, the main body part 20 and the insertion leg part 23 are integrally formed, the sheet part 21 is partially inserted into the through hole 14, and the sheet part 21 is higher than the surface of the fastener tape 10.

As shown in fig. 1 to 10, a waterproof zipper includes two fastener tapes 10 having fastener elements 11, each fastener element 11 includes a fastener element main body 111, a neck portion 113 and a head portion 114, the upper surface of the fastener element main body 111 has an undercut 112, the extending direction of the undercut 112 is the same as the length direction of the fastener tape 10, the two fastener tapes 10 have a fastener element region and an upper stop undercut region 12 formed after the fastener elements 11 are removed, the upper stop undercut region 12 exposes a through hole 14 for forming the fastener element 11, a patch 15 is attached to one side of the upper stop undercut region 12, both ends of the patch 15 extend to the two fastener tapes 10 respectively and cover the through hole 14 corresponding to the upper stop undercut region 12, the patch 15 is provided with a preformed hole 13 near the upper stop undercut region 12 of the fastener element region, the upper stop region 12 is injection-molded with an upper stop, the upper stop has a sheet-shaped portion 21 and a main body portion 20, the sheet-shaped portion 21 is formed on the other side opposite to the patch 15, the main body part 20 is partially embedded into the through hole 14, the main body part 20 has an accommodating part 22 formed at the preformed hole 13, one end of the accommodating part 22 close to the fastener element region is provided with a passage part 24 communicated with the accommodating part 22, two sides of the passage part 24 are formed with two insertion leg parts 23, the two insertion leg parts 23 are respectively located on the corresponding fastener tapes 10, each of the two insertion leg parts 23 is provided with an extension part 231 filled into the slot 112 of at least one fastener element 11, and one end of the extension part 231 far away from the accommodating part 22 extends out of the slot 112 and protrudes to the outside of the slot 112.

In summary, 1, the chain element body is provided with the notch extending along the length direction of the chain belt, so that the insertion leg part of the upper stop is formed with the extension part for filling the notch, thereby realizing the connection between the upper stop and the chain element, preventing the pull head from being blocked when moving to the joint with the chain element, ensuring the smooth movement of the pull head, being easy to open and close for pulling, improving the use convenience of the zipper, reducing the friction between the pull head and the upper stop, reducing the pulling force of the waterproof zipper and the abrasion of the upper stop, improving the waterproof sealing performance and prolonging the service life; 2. one end of the extending part, which is far away from the accommodating part, extends out of the notch and protrudes outwards, so that the extending part is prevented from falling off, and the connection stability of the upper stop and the zipper teeth is improved; 3. the sheet part and the main body part are integrally formed, and the sheet part covers the through hole, so that the strength of the upper stop is improved, and the chain belt at the upper stop is prevented from cracking; 4. according to the requirements, two chain belts with chain teeth in any length can be cut off, and after part of the chain teeth are removed, the upper stop is formed, so that the zipper in any length can be produced, and the applicability is wide.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the present invention, so that any modifications, equivalents, improvements, etc. made to the above embodiment according to the present invention are within the scope of the present invention.