Injection molding method of zipper teeth, garment with zipper teeth and injection molding equipment of zipper teeth

Abstract

The invention discloses a zipper tooth injection molding method, clothes with zipper teeth and zipper tooth injection molding equipment, and relates to the field of zippers and clothes. The invention relates to a zipper tooth injection molding method, which is used for injection molding of zipper teeth on clothes, and comprises the following steps: according to the required injection molding length and injection mold parameters, after the required injection molding times and the required injection molding length each time are obtained, repeating the following steps until the required injection molding times are reached; conveying the edges of the pair of fabrics with the core wires of the clothes into an injection mold in a tensioning state by the injection molding length required by the time; the length space of a cavity of the injection mold is adjusted to the injection molding length needed at the time; and injecting an injection molding material into the cavity to form the zipper teeth with the required length at the time, and opening the mold. The problem that the length of injection-molded zipper teeth cannot be changed can be solved.

Description

Technical Field

[0001] This application belongs to the technical fields of zippers and clothing, and particularly relates to an injection molding method for zipper teeth, a clothing with zipper teeth, and an injection molding device for zipper teeth. Background Art

[0002] In the production process of some clothing in the related art, first, the zipper teeth are injection molded on the chain tape to form a zipper, and then the zipper is sewn onto the fabric. However, the size of the injection mold used for injecting the zipper teeth is fixed, and only a specific length of zipper teeth can be injected each time through this type of injection mold, and the injection length of the zipper teeth cannot be changed. Since different clothing requires different zipper lengths, the zipper needs to be cut during sewing.

[0003] In order to make the clothing more beautiful or have better waterproof, heat preservation and other properties, directly installing the zipper teeth on the fabric has been a research direction. However, since the fabric cannot be directly cut, the method of forming zipper teeth on the chain tape cannot be directly applied to the fabric, so a new method for installing zipper teeth needs to be studied. Summary of the Invention

[0004] The purpose of the embodiments of this application is to provide an injection molding method for zipper teeth, a clothing with zipper teeth, and an injection molding device for zipper teeth, which can solve problems such as the inability to change the length of injection molded zipper teeth.

[0005] To solve the above technical problems, this application is implemented as follows: The embodiments of this application provide an injection molding method for zipper teeth, which is used for injecting zipper teeth into clothing. The injection molding method includes: According to the required injection length and injection mold parameters, obtain the required number of injection times and the required injection length each time, and then repeat the following steps until the required number of injection times; Convey the edges of a pair of fabrics with core wires of the clothing into the injection mold under tension for the required injection length this time; Adjust the length space of the cavity of the injection mold to the required injection length this time; Inject injection molding material into the cavity to form the zipper teeth of the required length this time and open the mold.

[0006] The embodiments of this application also provide a clothing with zipper teeth. The clothing includes: fabric, core wire and zipper teeth; The core wire is arranged at the edge of the fabric; The zipper teeth are injection molded to the area where the core wire is located at the edge of the fabric by using the above injection molding method.

[0007] The embodiments of this application also provide an injection molding device for zipper teeth, including: an injection mechanism, an injection mold, a conveying mechanism and a tooth arranging and adjusting mechanism; The conveying mechanism is used to convey the edges of a pair of fabrics with core wires of the garment along the conveying direction into the injection mold in portions by the injection length required for this time, and the conveying direction is consistent with the length direction of the cavity of the injection mold; The row of teeth adjusting mechanism is used to adjust the length space of the cavity of the injection mold to the injection length required for this time before each injection; The injection mechanism is used to inject injection material into the cavity; The injection mold is used to form teeth of the required length for this time at the edges of the fabric with core wires.

[0008] In the embodiment of the present application, during the process of injecting teeth each time, the length space of the cavity of the injection mold required for this time can be adjusted so that the length space of the cavity reaches the injection length required for this time. In this way, after injecting the injection material into the cavity, teeth of the required length for this time can be formed; after multiple injection processes, the entire row of teeth can be injected onto the edge of the fabric and the length of the teeth can be adapted to the length of the fabric. Compared with the method of injecting teeth in the related art, the embodiment of the present application can not only simplify the injection process flow, but also inject teeth of the required length according to actual needs, improving the applicability of the injection method. In addition, directly injecting the teeth onto the edge of the fabric can also help improve the aesthetics, waterproofness, heat preservation, etc. of the garment. Description of the Drawings

[0009] Figure 1 It is a schematic structural diagram of an injection device for teeth of the embodiment of the present application; Figure 2 It is a schematic structural diagram of the row of teeth adjusting mechanism and the injection mold of the embodiment of the present application; Figure 3 It is a schematic structural diagram of the row of teeth adjusting mechanism of the embodiment of the present application; Figure 4 It is a schematic structural diagram of the first mold of the embodiment of the present application; Figure 5 It is a schematic structural diagram of the second mold of the embodiment of the present application; Figure 6 It is a schematic structural diagram of the cutting mechanism of the embodiment of the present application.

[0010] Description of the Reference Numerals: 10 - Row of teeth adjusting mechanism; 11 - Driving assembly; 111 - Frame; 1111 - Slide rail; 1112 - Guide groove; 112 - Driving motor; 113 - Slide block; 1131 - Sliding part; 1132 - Bearing part; 114 - Lead screw; 12 - Sealing member; 20 - Conveying mechanism; 30 - Injection mold; 31 - First mold; 311 - Gate; 312 - First groove; 313 - First row of alveoli; 32 - Second mold; 321 - Mold body; 3211 - Second row of alveoli; 3212 - Second groove; 322 - Lifting module; 323 - Limit block; M - Cavity 40 - Injection mechanism 50 - Cutting mechanism 60 - Punching mechanism Specific embodiments

[0011] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present application.

[0012] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0013] The following will specifically illustrate the embodiments of the present application in detail with reference to the accompanying drawings and their application scenarios.

[0014] Refer to Figures 1 to 6 The embodiments of the present application disclose an injection method for chain teeth for injecting chain teeth on clothing. The disclosed injection method includes: According to the required injection length and injection mold parameters, obtain the required number of injection times and the required injection length each time, and then repeat the following steps until the required number of injection times.

[0015] Among them, the required injection length can be obtained according to the fabric size of the clothing. Optionally, the required injection length can be the same as the edge length of the fabric, or the required injection length can be less than the edge length of the fabric, etc. Of course, there can also be other situations, which are not specifically limited here.

[0016] The injection mold parameters may include the length and spatial dimensions of the cavity M, the number of alveolar sockets of the injection mold, the specific dimensions of each alveolar socket, the alveolar socket spacing, etc. In addition, other parameters may also be included, which are not specifically defined here.

[0017] According to the required injection length and the injection mold parameters, the required number of injection times and the injection length required each time can be calculated, so as to provide data for adjusting the length of the cavity M of the injection mold 30 subsequently.

[0018] Considering that the chain teeth of the required injection length need to go through multiple injections to be completed, it is necessary to repeat the injection process multiple times to obtain the chain teeth of the required length.

[0019] Convey the edges of a pair of fabrics with core wires of the garment into the injection mold 30 in a tensioned state for the injection length required this time. Based on this, it can be ensured that the fabrics with core wires will not wrinkle or shift, ensuring the position accuracy of the fabrics during the conveying process, and thus further ensuring the injection accuracy of the chain teeth.

[0020] Optionally, the core wire can be fixed in the edge area of the fabric. Exemplarily, the core wire can be fixed in the edge area of the fabric by means such as sewing and wrapping to ensure the installation stability of the core wire.

[0021] Convey the edge of the fabric into the injection mold 30 for the injection length required this time, so as to subsequently inject the chain teeth of the injection length required this time at the edge of the fabric of this length.

[0022] Adjust the length space of the cavity M of the injection mold 30 to the injection length required this time.

[0023] It should be noted here that the injection mold 30 may have a cavity M for accommodating the injection material, and the length space of this cavity M can be adjusted. Specifically, the length space of the cavity M can be divided into an effective space and an ineffective space. Among them, the effective space can be used to accommodate the injection material, and the ineffective space cannot accommodate the injection material. In this way, when the injection length required each time for the chain teeth is relatively large, the effective space can be increased and the ineffective space can be decreased by adjustment; when the injection length required each time for the chain teeth is relatively small, the effective space can be decreased and the ineffective space can be increased by adjustment. Therefore, the size of the length space of the cavity M can be adjusted according to the size of the injection length required each time.

[0024] Inject the injection material into the cavity M to form the chain teeth of the length required this time and open the mold.

[0025] After adjusting the size of the length space of the cavity M, the injection material can be injected into the effective space of the cavity M; after the injection material cools down, the chain teeth of the length required this time can be obtained; then the mold can be opened to facilitate the detachment of the chain teeth and prepare for the next injection of the chain teeth.

[0026] Based on the above steps, in each injection molding process of the chain teeth in this application embodiment, the length space of the cavity M of the injection mold 30 required for this time can be adjusted so that the length space of the cavity M reaches the injection length required for this time. In this way, after injecting the injection material into the cavity M, the chain teeth with the required length for this time can be formed. After multiple injection molding processes, the entire chain teeth can be injection molded to the edge of the fabric, and the length of the chain teeth can be adapted to the length of the fabric.

[0027] Compared with the chain teeth injection molding method in the related art, the embodiment of this application can not only simplify the injection molding process flow, but also inject the chain teeth with the required length according to actual needs, improving the applicability of the injection molding method. In addition, directly injecting the chain teeth to the edge of the fabric can also help improve the aesthetics, waterproofness, heat preservation, etc. of the clothing.

[0028] Optionally, according to the required injection length and injection mold parameters, obtaining the required number of injection molding times and the injection length required each time includes: Obtaining the chain tooth pitch, the total length of the chain teeth, and the number of mold teeth of the injection mold 30; According to the chain tooth pitch, the total length of the chain teeth, and the number of mold teeth, obtaining the required number of injection molding times; According to the chain tooth pitch, the total length of the chain teeth, and the required number of injection molding times, obtaining the number of injection teeth required each time.

[0029] Among them, the chain tooth pitch and the total length of the chain teeth can be obtained through the design parameters of the chain teeth. For example, when the size of the fabric is relatively large, chain teeth with a relatively large length dimension need to be set at the edge of the fabric; when the size of the fabric is relatively small, chain teeth with a relatively small length dimension need to be set at the edge of the fabric. Therefore, the total length of the chain teeth can be adaptively set according to the actual size of the fabric of the clothing.

[0030] In addition, the chain tooth pitch can be designed with reference to the type of clothing. For example, in the case where the clothing uses a light fabric, etc., chain teeth with a relatively small chain tooth pitch can be used; in the case where the clothing uses a thick fabric, etc., chain teeth with a relatively large chain tooth pitch can be used. Of course, it is not limited to this, and the selection of the chain tooth pitch only needs to meet the requirements under the actual working conditions.

[0031] The number of mold teeth of the injection mold 30 can be obtained through the design parameters of the mold, and the design parameters of the mold can be set according to the type of clothing.

[0032] Optionally, according to the chain tooth pitch, the total length of the chain teeth, and the number of mold teeth, obtaining the required number of injection molding times includes: Obtaining the number of injection molded chain teeth according to the total length of the chain teeth and the chain tooth pitch; The required injection molding adjustment times are obtained based on the number of chain teeth in injection molding and the number of teeth in the mold, and the injection molding adjustment times are the injection molding times.

[0033] Specifically, the total number of chain teeth can be obtained by dividing the total length of the chain teeth by the pitch of the chain teeth; and the required injection molding times can be obtained by dividing the total number of chain teeth by the number of teeth in the mold. It should be noted here that the quotient obtained by dividing the total number of chain teeth by the number of teeth in the mold can be an integer, and in this case, the integer quotient is the required injection molding times; of course, the quotient obtained by dividing the total number of chain teeth by the number of teeth in the mold can also not be an integer, that is, there is a remainder. In this case, it can be judged whether it affects the required injection molding times according to the size of the remainder.

[0034] Optionally, the required injection molding times are obtained based on the pitch of the chain teeth, the total length of the chain teeth, and the number of teeth in the mold, including: The total number of chain teeth is obtained based on the total length of the chain teeth and the pitch of the chain teeth; It is preset that the number of teeth to be injection molded in the last mold is the number of teeth in the mold, and the injection molding chain teeth number is obtained by subtracting the number of teeth in the mold from the total number of chain teeth; The required injection molding adjustment times are obtained based on the injection molding chain teeth number and the number of teeth in the mold; The required injection molding times are obtained by adding 1 to the injection molding adjustment times.

[0035] Based on the above steps, the whole chain teeth can be allocated into the required injection molding times to facilitate batch injection molding of the chain teeth.

[0036] In order to obtain more accurate required injection molding times and the number of teeth to be injection molded each time, the embodiments of the present application can automatically calculate the required injection molding times and the number of teeth to be injection molded each time through a program. Specifically, the required injection molding times are obtained based on the injection molding chain teeth number and the number of teeth in the mold, including: The first quotient and the first remainder are obtained by dividing the injection molding chain teeth number by the number of teeth in the mold; It is judged whether the first remainder is less than a preset limit value; If not, the first quotient is determined as the required injection molding adjustment times, and the first remainder is determined as the number of teeth in the last mold of the required injection molding adjustment; If so, the first quotient is added with N - 1 to obtain an intermediate value, and the Nth quotient and the Nth remainder are obtained by dividing the injection molding chain teeth number by the intermediate value; Continue to judge whether the Nth remainder is less than the preset limit value; If not, the intermediate value is added with 1 to obtain the required injection molding adjustment times, the Nth quotient is determined as the number of teeth in each mold of the required injection molding adjustment, and the Nth remainder is determined as the number of teeth in the last mold of the required injection molding adjustment; If so, the above two steps are repeated until the Nth remainder is not less than the preset limit value, and the intermediate value obtained at this time is added with 1 to be determined as the required injection molding adjustment times.

[0037] Among them, N takes integer values starting from 2 and increases by 1 successively for each operation.

[0038] Furthermore, according to the chain tooth pitch, the total length of the chain teeth, and the required number of injection molding times, the number of chain teeth required for each injection is obtained, including: If the first remainder is not less than the preset limit value, the number of teeth in the mold is determined as the number of teeth per mold required for the injection molding adjustment, and the first remainder is determined as the number of teeth in the last mold required for the injection molding adjustment; If the Nth remainder is not less than the preset limit value, the Nth quotient value is determined as the number of teeth per mold required for the injection molding adjustment, and the Nth remainder is determined as the number of teeth in the last mold required for the injection.

[0039] Based on the above steps, the embodiments of the present application form the chain teeth of the required length by distributing them to multiple injection molding processes, and design the number of chain teeth injected in each injection molding process in the injection mold 30. In this way, the total number of chain teeth required can be obtained by the sum of the number of teeth in the mold formed by multiple injections of the injection mold 30, so as to meet the injection requirements of the chain teeth.

[0040] Optionally, adjusting the length space of the cavity M of the injection mold 30 to the required injection length for this time includes: Blocking the redundant chain tooth injection length space of the cavity M during this injection, so that the injection mold 30 has the required chain tooth injection length during this injection.

[0041] It should be noted here that the redundant length space here is the above-mentioned invalid space. By adjusting the length of the blocked redundant length space, the length of the effective space can be correspondingly changed, so that the injection mold 30 can have the required injection length during this injection.

[0042] Optionally, in the step of conveying the edges of a pair of fabrics with core wires of the garment into the injection mold 30 in a tensioned state, the edges of the fabrics with core wires are tensioned by tightening the core wires, so that the edges of the fabrics are conveyed into the injection mold 30 after being tensioned, which can effectively prevent the occurrence of fabric wrinkles, is beneficial to improving the quality of the injection chain teeth at the fabric edges, and can ensure the appearance of the garment at the fabric edges.

[0043] Optionally, after forming the chain teeth of the required length for this time and opening the mold, the injection method further includes: Cutting off the sprue of the injected chain teeth. Based on this, the redundant sprue material on the chain teeth can be removed. On the one hand, it can effectively prevent the sprue material from blocking the slider, ensure that the slider can slide smoothly on the chain teeth, and on the other hand, it can also improve the appearance of the chain teeth and prevent the situation of the sprue material pricking the hand.

[0044] Optionally, adjusting the length space of the cavity M of the injection mold 30 to the required injection length for this time includes: If this injection molding is not the last one, then during this injection molding, the redundant injection length space of the chain teeth and the injection space of the pin in the cavity M are blocked, so that the injection mold 30 has the required chain tooth injection length during this injection molding. If this injection molding is the last one, then during this injection molding, the entire space of the cavity M is used, so that the injection mold 30 has the entire chain tooth injection length space and the pin injection space during this injection molding.

[0045] Based on the above steps, the injection molding of the chain teeth and the pins can be completed together during the last injection molding process, without the need to separately inject the pins after the injection molding of the chain teeth, thereby reducing the injection time and improving the injection efficiency.

[0046] Based on the above injection molding method of the chain teeth, the embodiment of the present application also discloses a piece of clothing with chain teeth. The disclosed clothing includes: a fabric, a core thread, and chain teeth. Among them, the core thread is arranged at the edge of the fabric, and the chain teeth are injection molded to the area where the core thread is located at the edge of the fabric by using the above injection molding method of the chain teeth.

[0047] Based on the above settings, the firmness and stability of the chain teeth can be ensured, and the situation of the chain teeth falling off can be effectively prevented.

[0048] Optionally, the core thread can be arranged inside the edge of the fabric, that is, the edge of the fabric wraps the core thread to prevent the core thread from being exposed, which is beneficial to improving the appearance of the clothing. Moreover, the strength and stiffness of the fabric edge can be improved through the core thread, and the problem of the fabric edge sagging can be prevented, which is beneficial to improving the stability of the chain teeth.

[0049] The embodiment of the present application also discloses an injection molding device for the chain teeth, which is used to injection mold the chain teeth to the fabric. Refer to Figures 1 to 6 , the disclosed injection molding device includes an injection molding mechanism 40, an injection mold 30, a conveying mechanism 20, and a tooth arranging and adjusting mechanism 10.

[0050] Among them, the conveying mechanism 20 plays the role of conveying the fabric. It can convey the edges of a pair of fabrics with core threads of the clothing along the conveying direction into the injection mold 30 by times for the injection length required for this time, where the conveying direction is the same as the length direction of the cavity M of the injection mold 30. It should be noted here that according to the above injection molding method, the required number of injection moldings and the injection length required for each time can be obtained based on the required injection length of the chain teeth and the injection mold parameters, so that the injection length required for the chain teeth in the current situation can be known. Thus, the conveying length of the fabric can be adjusted through the conveying mechanism 20 to convey the edge of the fabric with the injection length required for this time into the injection mold 30.

[0051] The function of the tooth arranging and adjusting mechanism 10 is to adjust the injection molding length of the chain teeth. It can be used to adjust the length space of the cavity M of the injection mold 30 to the required injection molding length for each injection before each injection molding, so as to lay a foundation for subsequent injection molding of the chain teeth with the required injection molding length for this time.

[0052] The injection molding mechanism 40 is used to inject injection molding material into the cavity M of the injection mold 30. Among them, the injection molding mechanism 40 can have an injection head, and the injection molding material can be injected into the injection mold 30 through the injection head. It should be noted here that the specific structure and injection molding principle of the injection molding mechanism 40 can refer to the related technology and will not be elaborated in detail here. Optionally, the injection molding material can be materials such as plastics and resins.

[0053] The injection mold 30 is used to form chain teeth with the required length for this time at the edge of the fabric with a core wire, so that after the injection molding material cools, the injection molding material can form chain teeth with the required shape under the action of the injection mold 30.

[0054] Based on the above structure, the injection molding process of the chain teeth in the embodiment of the present application is as follows: The edge of the fabric with a core wire is conveyed into the injection mold 30 through the conveying mechanism 20, and the input length of the fabric is controlled so that the input length is equal to the required injection molding length for this time; the length space of the cavity M of the injection mold 30 is adjusted through the tooth arranging and adjusting mechanism 10 so that the length space of the cavity M meets the requirements of the required injection molding length for this time; the injection molding material is injected into the cavity M through the injection molding mechanism 40. After the injection molding material cools, chain teeth can be formed in the injection mold 30 to inject the chain teeth onto the edge of the fabric with a core wire; then the chain teeth are separated from the injection mold 30 and can be conveyed downstream along with the fabric to facilitate preparation for the next injection molding.

[0055] Refer to Figure 1 , in some embodiments, the injection molding equipment may include at least a pair of conveying mechanisms 20. Each pair of conveying mechanisms 20 may include two conveying mechanisms 20. The two conveying mechanisms 20 are arranged at intervals along the conveying direction of the fabric and can move synchronously along the conveying direction; the two conveying mechanisms 20 can be respectively used to convey one piece of a pair of fabrics with core wires in the conveying direction.

[0056] Based on the above settings, the two ends of the fabric edge can be clamped by the two conveying mechanisms 20 in each pair, so as to play a role in tensioning the edge of the fabric to prevent the edge of the fabric from wrinkling and affecting the injection molding quality of the chain teeth.

[0057] Optionally, the injection molding device may include a pair of injection molding mechanisms 40. The two injection molding mechanisms 40 in the pair can clamp and convey the two ends of the edge on one side of the fabric to facilitate injection molding of the chain teeth on the edge on one side of the fabric. The injection molding device may also include two pairs of injection molding mechanisms 40. The two injection molding mechanisms 40 in one pair can clamp and convey the two ends of the edge on one side of the fabric, and the two injection molding mechanisms 40 in the other pair can clamp and convey the two ends of the edge on the other side of the fabric. In this way, the chain teeth can be injection molded on the edges on both sides respectively, thereby improving the injection molding efficiency of the chain teeth. Of course, the conveying mechanism 20 can also be three pairs, four pairs, five pairs, etc., and can be specifically selected according to the actual working conditions.

[0058] Reference Figure 2 , in some embodiments, the tooth arranging and adjusting mechanism 10 may include a driving component 11 and a plugging member 12. Among them, the driving component 11 is connected to the plugging member 12 and is used to drive the plugging member 12 to move along the length direction of the cavity M so that the plugging member 12 moves into and plugs the redundant length space of the cavity M. Based on this, the size of the length space of the cavity M can be adjusted, so that the injection molding length of the chain teeth can be adjusted to meet the requirements for the chain tooth length under actual working conditions. Optionally, the plugging member 12 can be a feeler gauge strip.

[0059] Optionally, the driving component 11 may have a linear driving end, and the linear driving end is connected to the plugging member 12 to drive the plugging member 12 to move along the length direction of the cavity M. Exemplarily, the driving component 11 can adopt an electric, pneumatic or hydraulic driving method to realize the linear motion of the linear driving end. In addition, the plugging member 12 can be a strip-shaped structure, and it can extend into the cavity M by different lengths to adjust the size of the length space of the cavity M.

[0060] Reference Figure 2 and Figure 3 , in some more specific embodiments, the driving component 11 may include a frame 111, a driving motor 112, a sliding seat 113 and a lead screw 114. Among them, the driving motor 112 is arranged on the frame 111, the lead screw 114 is rotatably arranged on the frame 111 and is in transmission connection with the driving motor 112, the sliding seat 113 is movably arranged on the frame 111 and is in transmission connection with the lead screw 114, and the plugging member 12 is connected to the sliding seat 113. Based on this, under the driving action of the driving motor 112, the rotation of the lead screw 114 can drive the sliding seat 113 to move relative to the frame 111, so as to drive the plugging member 12 to move through the sliding seat 113, so that the plugging member 12 moves into and plugs the redundant length space of the cavity M, thereby adjusting the length space of the cavity M. Optionally, the driving motor 112 can be a servo motor.

[0061] Further, the frame 111 may be provided with a slide rail 1111 and a guide groove 1112 extending along the length direction of the cavity M, as Figure 3 shown. Wherein, the slide seat 113 may include a connected sliding portion 1131 and a bearing portion 1132. The sliding portion 1131 is slidably connected to the slide rail 1111. The bearing portion 1132 extends along the length direction of the cavity M and is slidably connected to the guide groove 1112. The plugging member 12 is slidably connected to the bearing portion 1132. Based on this, when the sliding portion 1131 is slidably engaged with the slide rail 1111 and the bearing portion 1132 is slidably engaged with the guide groove 1112, the moving stability of the slide seat 12 can be improved, and thus the moving accuracy of the plugging member 12 can be improved.

[0062] Reference Figure 2 , in some embodiments, the injection mold 30 may include a first mold 31 and a second mold 32, and the first mold 31 and the second mold 32 may be combined or separated relative to each other. Specifically, when it is necessary to inject the chain teeth, the first mold 31 and the second mold 32 may be combined relative to each other to form a cavity M for accommodating the injected material, so as to facilitate the formation of the chain teeth; when it is necessary to take out the chain teeth, the first mold 31 and the second mold 32 may be separated relative to each other, so that the chain teeth can be disengaged from the injection mold 30.

[0063] Among them, as Figure 4 and Figure 5 shown, the first mold 31 may be provided with a gate 311, a first groove 312 and a first row of tooth sockets 313. Correspondingly, the second mold 32 may be provided with a second row of tooth sockets 3211, and the second row of tooth sockets 3211 is arranged corresponding to the first row of tooth sockets 313; the notch of the first groove 312 faces the second mold 32 and encloses the cavity M with the second mold 32, and the cavity M is respectively communicated with the first row of tooth sockets 313, the second row of tooth sockets 3211 and the gate 311.

[0064] Based on the above settings, when the first mold 31 and the second mold 32 are combined relative to each other, the notch of the first groove 312 contacts the surface of the second mold 32, so as to enclose the cavity M; when it is necessary to inject the chain teeth, the injection material can be injected into the cavity M through the gate 311, and the injection material can flow from the cavity M into the first row of tooth sockets 313 and the second row of tooth sockets 3211 to fill the space enclosed between the first row of tooth sockets 313 and the second row of tooth sockets 3211. After the injection material cools, the chain teeth can be formed.

[0065] In order to adjust the size of the length space of the cavity M, an opening may be provided in the upstream region of the cavity M, and the plugging member 12 can be moved into or out of the cavity M through the opening. Based on this, the size of the length space of the cavity M can be adjusted by the length dimension of the plugging member 12 moving into the cavity M, so as to adjust the injection length of the chain teeth.

[0066] Reference Figure 5 In some embodiments, the second mold 32 may include a mold body 321 and a lifting module 322. Wherein, the mold body 321 is provided with a second groove 3212 on the side facing the first mold 31, the lifting module 322 is disposed in the second groove 3212 and is movable in a direction close to or away from the first mold 31, and the lifting module 322 is disposed opposite to the gate 311.

[0067] Based on the above settings, when the lifting module 322 is in a state close to the first mold 31, the lifting module 322 blocks the notch of the first groove 312, so as to form a cavity M between the first groove 312 and the lifting module 322; after the injection molding is completed, the first mold 31 and the second mold 32 are separated, so that the chain teeth can be separated from the first mold 31; then, the fabric and the chain teeth formed by injection molding can be lifted by the lifting module 322, so that the chain teeth can be separated from the second mold 32.

[0068] Optionally, the lifting module 322 may include a linear driving member and a top block. The linear driving member is connected to the top block, and the top block is movably disposed in the second groove 3212 to drive the top block to move in the second groove 3212 through the linear driving member.

[0069] To prevent the top block from detaching from the second groove 3212, the second mold 32 may further include a limiting block 323. The limiting block 323 is disposed at the notch of the second groove 2212 and is located at the end of the second groove 3212. The lifting module 222 is located between the bottom of the second groove 2212 and the limiting block 323. In this way, the top block can be limited in the second groove 3212 by the limiting block 323 to prevent the top block from detaching from the second groove 3212.

[0070] Reference Figure 1 and Figure 6 In some embodiments, the injection molding device may further include a cutting mechanism 50. Along the conveying direction of the fabric, the cutting mechanism 50 is disposed at a downstream position of the injection mold 30 for cutting off the sprue of the chain teeth after injection molding. Based on this, the excess sprue material on the chain teeth can be removed. On the one hand, it can effectively prevent the sprue material from blocking the slider, ensuring that the slider can smoothly slide on the chain teeth. On the other hand, it can also improve the appearance of the chain teeth and prevent the situation of the sprue material pricking the hand.

[0071] Optionally, the cutting mechanism 50 may include an upper cutting knife and a lower cutting knife. The upper cutting knife and the lower cutting knife can approach each other to cut the sprue of the chain teeth. Of course, they can also move away from each other to prepare for the next cutting.

[0072] Reference Figure 1In some embodiments, the injection molding device may further include a punching mechanism 60, which is disposed upstream of the conveying mechanism 20 along the conveying direction of the fabric and is used to punch holes at the edge of the fabric with the core wire. Based on this, when the pin that is connected to the chain element is injection molded, the injection molding material can enter the perforation, thereby improving the stability and firmness of the pin.

[0073] Optionally, the perforating mechanism 60 may include a melting hole control cylinder, a support frame, a heating device, a melting hole needle and a sliding frame. The sliding frame is slidably connected to the support frame, the melting hole control cylinder is connected to the sliding frame, the heating device and the melting hole needle are both arranged on the sliding frame, and the heating device is connected to the melting hole needle. Based on this, the melting hole needle can be heated by the heating device, and the sliding frame and the melting hole needle can be driven to move synchronously by the melting hole control cylinder, so as to melt a small hole on the fabric through the melting hole needle.

[0074] In some embodiments, the first mold 31 may also be provided with a first latch groove, which is located on the side of the first alveolar row 313 close to the opening and is connected to the cavity M; accordingly, the second mold 32 may also be provided with a second latch groove opposite to the groove of the first latch groove, which is located on the forehead side of the second alveolar row 3211 close to the opening and is connected to the cavity M.

[0075] Based on the above configuration, when the first mold 31 and the second mold 32 are combined, the first latch groove and the second latch groove are relatively engaged to form a latch cavity, and the latch cavity is connected to the mold cavity M, so that the injection material can enter the latch cavity from the mold cavity M to achieve injection molding of the latch. For example, the last mold chain element can be injection molded together with the latch.

[0076] Optionally, the front end of the blocking member 12 can be located between the gate 311 and the opening. In this way, the length space of the cavity M can be adjusted by moving the blocking member 12, and the blocking member 12 can be prevented from blocking the gate 311 and affecting the injection material from entering the cavity M, thereby ensuring the normal progress of the injection molding process.

[0077] Optionally, the tooth adjustment mechanism 10 may further include a fabric edge limiter, which is arranged on the injection mold 30. In this way, the fabric edge can be limited by the fabric edge limiter to improve the positioning accuracy of the fabric and further improve the injection molding accuracy of the chain teeth.

[0078] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An injection molding method for teeth of a zipper, which is used for injection molding teeth of a zipper on clothing, is characterized in that, The injection molding method comprises: According to the required injection length and injection mold parameters, get the required number of injections and the required injection length each time, and then repeat the following steps until the required number of injections is reached: The edges of a pair of fabrics with core threads of the garment are conveyed into the injection mold in a tensioned state to the required injection length; Adjusting the length space of the cavity of the injection mold to the required injection length; Injection material is injected into the mold cavity to form the chain element of the required length and then open the mold.

2. The injection molding method according to claim 1, characterized in that, According to the required injection length and injection mold parameters, the required number of injections and the required injection length for each injection are obtained, including: Obtaining the chain tooth pitch, the total length of the chain teeth and the number of mold teeth of the injection mold; According to the tooth pitch of the chain teeth, the total length of the chain teeth and the number of teeth of the mold, the required number of injection moldings is obtained; The number of teeth required for each injection molding is obtained according to the chain tooth pitch, the total length of the chain teeth and the required number of injection moldings.

3. The injection molding method according to claim 2, wherein, Adjusting the length space of the cavity of the injection mold to the required injection length, including: During the injection molding, the redundant space of the link element injection molding length of the cavity is blocked, so that the injection mold has the required link element injection molding length during the injection molding.

4. The injection molding method according to claim 2, characterized in that, According to the tooth pitch of the chain teeth, the total length of the chain teeth and the number of teeth of the mold, the required number of injection moldings is obtained, including: Obtaining the number of injection-molded chain teeth according to the total length of the chain teeth and the chain tooth pitch; The required injection molding adjustment times are obtained according to the number of injection molding chain teeth and the number of mold teeth, and the injection molding adjustment times are the injection molding times.

5. The injection molding method according to claim 2, characterized in that According to the tooth pitch of the chain teeth, the total length of the chain teeth and the number of teeth of the mold, the required number of injection moldings is obtained, including: Obtaining the total number of chain teeth according to the total length of the chain teeth and the chain tooth pitch; The number of injection teeth required for the last mold is preset as the number of mold teeth, and the number of injection chain teeth is obtained by subtracting the number of mold teeth from the total number of chain teeth; Obtaining the required injection adjustment times according to the number of injection molding chain teeth and the number of mold teeth; The injection molding adjustment number is increased by 1 to obtain the required injection molding number.

6. The injection molding method according to claim 4 or 5, characterized in that, Obtaining the required number of injection molding times according to the number of injection molding chain teeth and the number of mold teeth includes: Obtaining a first quotient and a first remainder by dividing the number of injection molding chain elements by the number of mold elements; Determining whether the first remainder is less than a preset limit; If not, the first quotient is determined as the required number of injection molding adjustments, and the first remainder is determined as the last die number of the required injection molding adjustments; If yes, then the first quotient is added to N-1 to obtain an intermediate value, and the number of injection-molded chain elements is divided by the intermediate value to obtain the Nth quotient and the Nth remainder. Determine whether the Nth remainder is less than a preset limit; If not, then add 1 to the intermediate value to obtain the required number of injection molding adjustments, determine the Nth quotient as the number of teeth per die required for injection molding adjustments, and determine the Nth remainder as the number of teeth for the last die required for injection molding adjustments; If yes, repeat the above two steps until the Nth remainder is not less than the preset limit, and add 1 to the intermediate value obtained at this time to determine the required number of injection molding adjustments, where N takes an integer value starting from 2 and increases by 1 each time.

7. The injection molding method according to claim 6, characterized in that, Based on the tooth pitch of the chain teeth, the total length of the chain teeth, and the required number of injection molding times, the number of injection-molded teeth required each time is obtained, including: If the first remainder is not less than the preset limit value, the number of teeth in the mold is determined as the number of teeth per mold for the required injection molding adjustment, and the first remainder is determined as the number of teeth in the last mold for the required injection molding adjustment; If the Nth remainder is not less than the preset limit value, the Nth quotient value is determined as the number of teeth per mold for the required injection molding adjustment, and the Nth remainder is determined as the number of teeth in the last mold for the required injection molding adjustment.

8. The injection molding method according to any one of claims 1 to 7, characterized in that, In the step of conveying the edges of a pair of fabrics with core wires of the garment into the injection mold in a tensioned state, the edges of the fabrics with core wires are tensioned by tightening the core wires.

9. The injection molding method according to any one of claims 1 to 7, characterized in that, After forming the chain teeth of the required length for this time and opening the mold, the injection molding method further includes: Cutting off the sprue of the injection-molded chain teeth.

10. The injection molding method according to claim 5, characterized in that, Adjusting the length space of the cavity (M) of the injection mold (30) to the required injection molding length for this time, including: If this injection molding is not the last injection molding, block the redundant chain tooth injection molding length space and the pin injection molding space of the cavity (M) during this injection molding, so that the injection mold (30) has the required chain tooth injection molding length during this injection molding; If this injection molding is the last injection molding, use all the space of the cavity (M) during this injection molding, so that the injection mold (30) has all the chain tooth injection molding length space and the pin injection molding space during this injection molding.

11. A garment with teeth, characterized in that, The garment includes: fabric, core wire, and chain teeth; The core wire is provided at the edge of the fabric; The chain teeth are injection-molded to the area where the core wire is located at the edge of the fabric by using the injection molding method described in any one of claims 1 to 10.

12. An injection molding device for chain teeth, characterized in that, The injection molding equipment includes: an injection molding mechanism (40), an injection mold (30), a conveying mechanism (20), and a tooth arrangement adjustment mechanism (10); The conveying mechanism (20) is used to convey the edges of a pair of fabrics with core wires of the garment along the conveying direction into the injection mold (30) by the required injection molding length for this time, and the conveying direction is the same as the length direction of the cavity (M) of the injection mold (30); The tooth arrangement adjustment mechanism (10) is used to adjust the length space of the cavity (M) of the injection mold (30) to the required injection molding length before each injection molding; The injection molding mechanism (40) is used to inject injection molding material into the cavity (M); The injection mold (30) is used to form chain teeth of the required length for this time at the edge of the fabric with core wires.

13. The injection molding device according to claim 12, characterized in that, The injection molding equipment includes at least one pair of the conveying mechanisms, and each pair of the conveying mechanisms includes two of the conveying mechanisms, and the two conveying mechanisms are arranged at intervals along the conveying direction of the fabric and can move synchronously along the conveying direction; The two conveying mechanisms are respectively used to convey one piece of a pair of fabrics with core wires in the conveying direction.

14. The injection molding device according to claim 12, characterized in that, The tooth arrangement adjustment mechanism (10) includes: a driving component (11) and a blocking member (12); The driving component (11) is connected to the plugging member (12) and is used to drive the plugging member (12) to move along the length direction of the cavity (M), so that the plugging member (12) moves into and plugs the redundant length space of the cavity (M).

15. The injection molding device according to claim 14, characterized in that, The driving component (11) includes a frame (111), a driving motor (112), a sliding seat (113) and a lead screw (114); The driving motor (112) is arranged on the frame (111); The lead screw (114) is rotatably arranged on the frame (111) and is in transmission connection with the driving motor (112); The sliding seat (113) is movably arranged on the frame (111) and is in transmission connection with the lead screw (114); The plugging member (12) is connected to the sliding seat (113).

16. The injection molding device according to claim 15, characterized in that, The frame (111) is provided with a slide rail (1111) and a guide groove (1112) respectively extending along the length direction of the cavity (M); The sliding seat (113) includes a sliding part (1131) and a bearing part (1132) connected to each other. The sliding part (1131) is slidably connected to the slide rail (1111), and the bearing part (1132) extends along the length direction and is slidably connected to the guide groove (1112); The plugging member (12) is connected to the bearing part (1132).

17. The injection molding device according to claim 14, characterized in that, The injection mold (30) includes a first mold (31) and a second mold (32) that can be combined or separated relatively; The first mold (31) is provided with a gate (311), a first groove (312) and a first row of alveoli (313). The second mold (32) is provided with a second row of alveoli (3211) corresponding to the first row of alveoli (313). The notch of the first groove (312) faces the second mold (32) and encloses the cavity (M) with the second mold (32). The cavity (M) is respectively communicated with the first row of alveoli (313), the second row of alveoli (3211) and the gate (311); An opening is provided in the upstream area of the cavity (M), and the plugging member (12) can move into or out of the cavity (M) through the opening.

18. The injection molding device according to claim 17, characterized in that, The second mold (32) includes a mold body (321) and a jacking module (322); The mold body (321) is provided with a second groove (3212) on the side facing the first mold (31). The jacking module (322) is movably arranged in the second groove (3212) along the direction of approaching or departing from the first mold (31) and is arranged opposite to the gate (311); When the jacking module (322) is in the state of approaching the first mold (31), the jacking module (322) plugs the notch of the first groove (312).

19. The injection molding device according to claim 12, wherein The injection molding equipment further includes a cutting mechanism (50). Along the conveying direction of the fabric, the cutting mechanism (50) is arranged at the downstream position of the injection mold (30) and is used to cut off the chain tooth water inlet after injection molding.

20. The injection molding device according to claim 12, characterized in that, The injection molding device further includes a perforating mechanism (60). Along the conveying direction of the fabric, the perforating mechanism (60) is arranged at the upstream position of the conveying mechanism (20) and is used for perforating the edge of the fabric with a core wire.

21. The injection molding device according to claim 20, wherein, The perforating mechanism (60) includes a support frame, a melting hole control cylinder, a heating device, a melting hole needle and a sliding frame; The sliding frame is slidably connected to the support frame; The melting hole control cylinder is connected to the sliding frame; Both the heating device and the melting hole needle are arranged on the sliding frame, and the heating device is connected to the melting hole needle.

Images