Injection-molding apparatus for chains

Abstract

The application discloses a zipper injection equipment, and relates to the field of zippers and clothes. The zipper injection equipment comprises an injection mechanism, an injection mold, a conveying mechanism and a row tooth adjusting mechanism. The conveying mechanism is used for conveying edges of a pair of fabric with core wires of clothes to the injection mold in a conveying direction by a required injection length in each time, and the conveying direction is consistent with the length direction of a cavity of the injection mold. The row tooth adjusting mechanism is used for adjusting the length space of the cavity of the injection mold to the required injection length in each time before injection. The injection mechanism is used for injecting injection material into the cavity. The injection mold is used for forming the zipper with the required length on the edges of the fabric with core wires. The application can solve the problem that the injection zipper cannot change the length.

Description

Technical Field

[0001] This application belongs to the technical field of zippers and clothing, and specifically relates to an injection molding device for zipper teeth. Background Technology

[0002] In some garment manufacturing processes using related technologies, zipper teeth are first injection-molded onto the zipper belt to form a zipper, and then the zipper is sewn onto the fabric. However, the injection mold used for molding the zipper teeth has a fixed size, meaning that only a specific length of zipper teeth can be injection-molded each time, and the injection length of the zipper teeth cannot be changed. Since different garments require different zipper lengths, the zipper needs to be cut during sewing.

[0003] To enhance the aesthetics of garments or improve their waterproof and thermal insulation properties, directly attaching chain teeth to the fabric has been a long-standing research direction. However, since fabrics cannot be directly cut, methods for creating chain teeth on the chain strap are not directly applicable to fabrics. Therefore, new chain tooth installation methods need to be researched. Utility Model Content

[0004] The purpose of this application is to provide an injection molding device for chain teeth that can solve problems such as the inability to change the length of injection molded chain teeth.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] This application provides an injection molding device for chain teeth, including: an injection molding mechanism, an injection mold, a conveying mechanism, and a tooth adjustment mechanism;

[0007] The conveying mechanism is used to convey the edges of a pair of fabrics with core threads of the garment into the injection mold in stages along the conveying direction to achieve the required injection length. The conveying direction is consistent with the length direction of the cavity of the injection mold.

[0008] The tooth-aligning adjustment mechanism is used to adjust the length space of the cavity of the injection mold to the required injection length before each injection.

[0009] The injection molding mechanism is used to inject injection molding material into the cavity;

[0010] The injection mold is used to form the required length of chain teeth at the edge of the fabric with the core thread.

[0011] In this embodiment, during each injection molding of the chain teeth, the length of the mold cavity can be adjusted to achieve the required injection length. After injecting the molding material into the cavity, the required chain teeth are formed. After multiple injection molding processes, the entire chain tooth can be molded to the edge of the fabric, ensuring the chain tooth length matches the fabric length. Compared to chain tooth injection molding methods in related technologies, the injection molding equipment in this embodiment simplifies the injection molding process and allows for the molding of chain teeth to the required length according to actual needs, improving the applicability of the equipment. Furthermore, directly molding the chain teeth to the edge of the fabric can enhance the garment's aesthetics, waterproofing, and insulation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the injection molding equipment for chain teeth disclosed in an embodiment of this application;

[0013] Figure 2 This is a schematic diagram of the tooth-aligning adjustment mechanism and injection mold disclosed in the embodiments of this application;

[0014] Figure 3 This is a schematic diagram of the tooth alignment adjustment mechanism disclosed in the embodiments of this application;

[0015] Figure 4 This is a schematic diagram of the structure of the first mold disclosed in an embodiment of this application;

[0016] Figure 5 This is a schematic diagram of the structure of the second mold disclosed in an embodiment of this application;

[0017] Figure 6 This is a schematic diagram of the cutting mechanism disclosed in the embodiments of this application.

[0018] Explanation of reference numerals in the attached figures:

[0019] 10-Tooth alignment adjustment mechanism; 11-Drive assembly; 111-Frame; 1111-Slide rail; 1112-Guide groove; 112-Drive motor; 113-Slide block; 1131-Sliding part; 1132-Bearing part; 114-Lead screw; 12-Sealing component;

[0020] 20 - Conveying mechanism;

[0021] 30 - Injection mold; 31 - First mold; 311 - Gate; 312 - First groove; 313 - First toothed groove; 32 - Second mold; 321 - Mold body; 3211 - Second toothed groove; 3212 - Second groove; 322 - Lifting module; 323 - Limiting block; M - Cavity;

[0022] 40 - Injection molding mechanism;

[0023] 50 - Cutting mechanism;

[0024] 60 - Perforation mechanism. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0027] The embodiments of this application will be described in detail below with reference to the accompanying drawings and specific examples and application scenarios.

[0028] refer to Figures 1 to 6 This application discloses an injection molding method for chain teeth, used for injection molding chain teeth into clothing. The disclosed injection molding method includes:

[0029] Based on the required injection length and injection mold parameters, obtain the required number of injections and the required injection length for each injection, then repeat the following steps until the required number of injections is reached.

[0030] The required injection length can be determined based on the fabric dimensions of the garment. Optionally, the required injection length can be the same as the edge length of the fabric, or it can be less than the edge length of the fabric, or other conditions may exist, which are not specifically limited here.

[0031] Injection mold parameters may include the length and spatial dimensions of the cavity M, the number of grooves in the injection mold, the specific dimensions of each groove, the groove spacing, etc. Other parameters may also be included, which are not specifically limited here.

[0032] Based on the required injection length and injection mold parameters, the required number of injections and the required injection length for each injection can be calculated, so as to provide data for subsequent adjustment of the cavity M length of the injection mold 30.

[0033] Considering that the required injection length of the chain teeth needs to be completed through multiple injection molding processes, it is necessary to repeat the injection molding process multiple times to obtain the required length of chain teeth.

[0034] The edges of a pair of fabric pieces with core threads are fed into the injection mold 30 under tension to the required injection length. This ensures that the fabric with core threads will not wrinkle or shift, guaranteeing the positional accuracy of the fabric during the feeding process, thereby further ensuring the injection accuracy of the chain teeth.

[0035] Optionally, the core thread can be fixed to the edge area of ​​the fabric. For example, the core thread can be fixed to the edge area of ​​the fabric by sewing, binding, or other methods to ensure the stability of the core thread installation.

[0036] The edge of the fabric is fed into the injection mold 30 to the required injection length so that the chain teeth of the required injection length can be injected into the fabric edge at that length.

[0037] Adjust the length space of the cavity M of the injection mold 30 to the required injection length for this injection.

[0038] It should be noted that the injection mold 30 may have a cavity M for accommodating injection molding material, and the length of the cavity M is adjustable. Specifically, the length of the cavity M can be divided into an effective space and an ineffective space. The effective space can be used to accommodate injection molding material, while the ineffective space cannot. Thus, when the required injection length for each chain tooth is large, the effective space can be increased and the ineffective space decreased by adjustment; when the required injection length for each chain tooth is small, the effective space can be decreased and the ineffective space increased by adjustment. Therefore, the length of the cavity M can be adjusted according to the required injection length for each operation.

[0039] Inject molding material into cavity M to form the chain teeth of the required length and open the mold.

[0040] After adjusting the length and dimensions of cavity M, injection molding material can be injected into the effective space of cavity M. After the injection molding material cools, the required length of chain teeth can be obtained. Then the mold can be opened to allow the chain teeth to detach, preparing for the next injection molding of chain teeth.

[0041] Based on the above steps, in each injection molding process of the chain teeth, the length space of the cavity M of the injection mold 30 required for that injection can be adjusted so that the length space of the cavity M reaches the required injection length for that injection. In this way, after the injection material is injected into the cavity M, the chain teeth of the required length can be formed. After multiple injection molding processes, the entire chain teeth can be injected to the edge of the fabric, and the length of the chain teeth is adapted to the length of the fabric.

[0042] Compared to the chain tooth injection molding method in related technologies, the embodiments of this application can simplify the injection molding process and can inject chain teeth of the required length according to actual needs, thereby improving the applicability of the injection molding method. In addition, directly injecting chain teeth to the edge of the fabric can also help improve the appearance, waterproofness and heat insulation of the garment.

[0043] Optionally, based on the required injection length and injection mold parameters, the required number of injections and the required injection length for each injection are obtained, including:

[0044] Obtain the chain tooth pitch, total chain tooth length, and number of mold teeth for injection mold 30;

[0045] The required number of injection cycles is determined based on the chain tooth pitch, the total chain tooth length, and the number of mold teeth.

[0046] The number of teeth required for each injection is determined based on the tooth spacing, total tooth length, and required number of injection cycles.

[0047] The tooth pitch and total tooth length can be obtained from the design parameters of the teeth. For example, when the fabric size is relatively large, longer teeth need to be set at the edges of the fabric; when the fabric size is relatively small, shorter teeth need to be set at the edges of the fabric. Therefore, the total tooth length can be adaptively set according to the actual size of the garment fabric.

[0048] In addition, the tooth pitch of the chainring can be designed with reference to the type of clothing. For example, when the clothing is made of lightweight fabric, a chainring with a relatively small tooth pitch can be used; when the clothing is made of thick fabric, a chainring with a larger tooth pitch can be used. Of course, this is not the only limitation; the selection of the chainring tooth pitch should only meet the needs of the actual working conditions.

[0049] The number of teeth in injection mold 30 can be obtained through mold design parameters, which can be set according to the type of clothing.

[0050] Optionally, the required number of injection cycles can be obtained based on the chain tooth pitch, the total chain tooth length, and the number of mold teeth, including:

[0051] The number of injection-molded chain teeth is determined based on the total length of the chain teeth and the spacing between the chain teeth.

[0052] The required number of injection adjustment times is obtained based on the number of injection chain teeth and the number of mold teeth. This number of injection adjustment times is called the number of injections.

[0053] Specifically, the total length of the chain teeth is divided by the chain tooth pitch to obtain the total number of chain teeth; and the required number of injection molding cycles is obtained by dividing the total number of chain teeth by the number of mold teeth. It should be noted that the quotient of the total number of chain teeth divided by the number of mold teeth can be an integer, in which case this integer quotient is the required number of injection molding cycles; of course, the quotient of the total number of chain teeth divided by the number of mold teeth can also be a non-integer, i.e., it may have a remainder. In this case, the size of the remainder can be used to determine whether it affects the required number of injection molding cycles.

[0054] Optionally, the required number of injection cycles can be obtained based on the chain tooth pitch, the total chain tooth length, and the number of mold teeth, including:

[0055] The total number of chain teeth is obtained based on the total length of the chain teeth and the spacing between the chain teeth.

[0056] The number of teeth required for the final injection mold is preset to be the number of teeth in the mold. The total number of chain teeth is subtracted from the number of teeth in the mold to obtain the number of chain teeth to be injected.

[0057] The required number of injection adjustment cycles is determined based on the number of teeth in the injection chain and the number of teeth in the mold.

[0058] Add 1 to the injection adjustment number to get the required number of injections.

[0059] Based on the above steps, the entire chain teeth can be allocated to the required number of injection cycles to facilitate batch injection molding of the chain teeth.

[0060] To obtain a more accurate number of injection cycles and the number of injection teeth required per cycle, embodiments of this application can automatically calculate the required number of injection cycles and the number of injection teeth required per cycle through a program. Specifically, the required number of injection cycles is obtained based on the number of injection chain teeth and the number of mold teeth, including:

[0061] The first quotient and the first remainder are obtained by dividing the number of teeth in the injection molding chain by the number of teeth in the mold.

[0062] Determine whether the first remainder is less than a preset limit;

[0063] If not, then the first quotient is determined as the required number of injection molding adjustments, and the first remainder is determined as the number of teeth in the last mold required for injection molding adjustments;

[0064] If so, add N-1 to the first quotient to get the intermediate value, and divide the number of injection molding chain teeth by the intermediate value to get the Nth quotient and the Nth remainder;

[0065] Continue to determine whether the Nth remainder is less than the preset limit;

[0066] If not, add 1 to the middle value to get the required number of injection molding adjustments, determine the Nth quotient as the number of teeth per mold required for injection molding adjustment, and determine the Nth remainder as the number of teeth in the last mold required for injection molding adjustment.

[0067] If so, repeat the above two steps until the Nth remainder is not less than the preset limit. Then, add 1 to the intermediate value obtained at this time to determine the required number of injection molding adjustments.

[0068] Where N starts from 2 and takes integer values, incrementing by 1 with each operation.

[0069] Furthermore, based on the chain tooth pitch, the total chain tooth length, and the required number of injection molding cycles, the number of teeth required for each injection cycle is obtained, including:

[0070] If the first remainder is not less than the preset limit, then the number of mold teeth is determined as the number of teeth per mold to be adjusted for injection molding, and the first remainder is determined as the number of teeth in the last mold to be adjusted for injection molding.

[0071] If the Nth remainder is not less than the preset limit, then the Nth quotient is determined as the number of teeth per mold required for injection molding adjustment, and the Nth remainder is determined as the number of teeth in the last mold required for injection molding.

[0072] Based on the above steps, the embodiments of this application distribute the required length of chain teeth to multiple injection molding processes to form them, 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 summing the number of mold teeth formed by multiple injection molding processes in the injection mold 30, thereby meeting the injection molding requirements of chain teeth.

[0073] Optionally, adjusting the length space of the cavity M of the injection mold 30 to the required injection length includes:

[0074] During this injection molding process, the excess chain tooth injection length space of the cavity M is blocked, so that the injection mold 30 has the required chain tooth injection length during this injection molding process.

[0075] It should be noted that the excess length space here is the aforementioned invalid space. By adjusting the length of the excess length space, the length of the effective space can be changed accordingly, so that the injection mold 30 can have the required injection length in this injection.

[0076] Optionally, in the step of conveying the edges of a pair of fabrics with core threads into the injection mold 30 under tension, the edges of the fabrics with core threads are tensioned by tightening the core threads so that the edges of the fabrics are conveyed into the injection mold 30 after tensioning. This can effectively prevent the fabric from wrinkling, improve the quality of the injection molding teeth at the fabric edges, and ensure the appearance of the garment at the fabric edges.

[0077] Optionally, after forming the chain teeth of the required length and opening the mold, the injection molding method further includes:

[0078] Cut off the sprue from the injection-molded chain teeth. This removes excess sprue material from the chain teeth, effectively preventing it from obstructing the slider and ensuring smooth operation. It also improves the appearance of the chain teeth and prevents the sprue material from being sharp or prickly.

[0079] Optionally, adjusting the length space of the cavity M of the injection mold 30 to the required injection length includes:

[0080] If this injection is not the last injection, then during this injection, the excess chain tooth injection length space and pin injection space of the cavity M are blocked, so that the injection mold 30 has the required chain tooth injection length during this injection.

[0081] If this injection is the last injection, then the entire space of cavity M is used in this injection, so that the injection mold 30 has the full length space of the chain tooth injection and the pin injection space in this injection.

[0082] Based on the above steps, the chain teeth and pins can be molded together in the final injection process, eliminating the need to separately mold the pins after the chain teeth are molded. This reduces injection time and improves injection efficiency.

[0083] Based on the above-described injection molding method for chain teeth, this application also discloses a garment with chain teeth. The disclosed garment includes: fabric, core thread, and chain teeth. The core thread is located 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 using the above-described injection molding method for chain teeth.

[0084] Based on the above settings, the strength and stability of the chain teeth can be guaranteed, effectively preventing the chain teeth from falling off.

[0085] Optionally, the core thread can be placed inside the edge of the fabric, that is, the core thread is wrapped by the edge of the fabric to prevent the core thread from being exposed, which helps to improve the appearance of the garment. In addition, the core thread can also improve the strength and rigidity of the fabric edge, prevent the fabric edge from becoming soft and sagging, and help to improve the stability of the chain teeth.

[0086] This application also discloses an injection molding device for chain teeth, used to inject chain teeth onto fabric. (Reference) Figures 1 to 6 The disclosed injection molding equipment includes an injection molding mechanism 40, an injection mold 30, a conveying mechanism 20, and a toothing adjustment mechanism 10.

[0087] The conveying mechanism 20 serves to transport the fabric, delivering the edges of a pair of fabric pieces with core threads into the injection mold 30 in stages, following the conveying direction to achieve the required injection length. The conveying direction is aligned with the length direction of the cavity M in the injection mold 30. It should be noted that, as described in the injection molding method, the required number of injections and the required injection length per injection can be determined based on the required injection length of the chain teeth and the injection mold parameters. This allows the determination of the required injection length for the chain teeth in the current situation. Therefore, the conveying mechanism 20 can be used to adjust the fabric delivery length based on the required injection length of the chain teeth, ensuring that the edge of the fabric of the required injection length is delivered into the injection mold 30.

[0088] The function of the tooth adjustment mechanism 10 is to adjust the injection 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 length before each injection, thereby laying the foundation for subsequent injection of chain teeth of the required injection length.

[0089] The injection molding mechanism 40 is used to inject molding material into the cavity M of the injection mold 30. The injection molding mechanism 40 may have an injection head, through which molding material is injected into the injection mold 30. It should be noted that the specific structure and injection principle of the injection molding mechanism 40 can be found in relevant technologies and will not be elaborated upon here. Optionally, the molding material can be plastic, resin, or other materials.

[0090] The injection mold 30 is used to form the required length of chain teeth on the edge of the fabric with the core thread, so that after the injection material cools, the injection material can form the chain teeth of the required shape under the action of the injection mold 30.

[0091] Based on the above structure, the injection molding process of the chain teeth in this embodiment is as follows:

[0092] The conveying mechanism 20 transports the edge of the fabric with the core thread into the injection mold 30 and controls the input length of the fabric to be equal to the required injection length. The tooth adjustment mechanism 10 adjusts the length space of the cavity M of the injection mold 30 to meet the required injection length. The injection molding mechanism 40 injects injection material into the cavity M. After the injection material cools, chain teeth are formed in the injection mold 30 to be injected onto the edge of the fabric with the core thread. Then the chain teeth are removed from the injection mold 30 and the fabric can be transported downstream to prepare for the next injection.

[0093] refer to Figure 1In some embodiments, the injection molding equipment may include at least one pair of conveying mechanisms 20, each pair of conveying mechanisms 20 may include two conveying mechanisms 20, the two conveying mechanisms 20 are spaced apart along the conveying direction of the fabric and can move synchronously along the conveying direction; the two conveying mechanisms 20 can be used to convey one piece of a pair of fabrics with core threads in the conveying direction respectively.

[0094] Based on the above setup, the two ends of the fabric edge can be clamped by the two conveying mechanisms 20 in each pair, thereby tensioning the fabric edge to prevent the fabric edge from wrinkling and affecting the injection molding quality of the chain teeth.

[0095] Optionally, the injection molding equipment may include a pair of injection molding mechanisms 40. The two injection molding mechanisms 40 in one pair can clamp and transport the edge of the fabric on one side to facilitate the injection molding of chain teeth on that edge. The injection molding equipment may also include two pairs of injection molding mechanisms 40. In one pair, the two injection molding mechanisms 40 can clamp and transport the edge of the fabric on one side, while in the other pair, the two injection molding mechanisms 40 can clamp and transport the edge of the fabric on the other side. This allows for the injection molding of chain teeth on both sides of the edge, thereby improving the injection molding efficiency of the chain teeth. Of course, the conveying mechanisms 20 can also be in three, four, or five pairs, etc., depending on the actual working conditions.

[0096] refer to Figure 2 In some embodiments, the tooth adjustment mechanism 10 may include a drive assembly 11 and a sealing member 12. The drive assembly 11 is connected to the sealing member 12 and is used to drive the sealing member 12 to move along the length direction of the cavity M, so that the sealing member 12 moves into and seals the excess length space of the cavity M. Based on this, the size of the length space of the cavity M can be adjusted, thereby adjusting the injection length of the chain teeth to meet the requirements of the chain tooth length under actual working conditions. Optionally, the sealing member 12 may be a feeler gauge strip.

[0097] Optionally, the drive assembly 11 may have a linear drive end connected to the sealing member 12 to drive the sealing member 12 to move along the length direction of the cavity M. Exemplarily, the drive assembly 11 may employ an electric, pneumatic, or hydraulic drive to achieve the linear motion of the linear drive end. Furthermore, the sealing member 12 may be an elongated structure that can extend into the cavity M to different lengths to adjust the length and size of the cavity M.

[0098] refer to Figure 2 and Figure 3In some more specific embodiments, the drive assembly 11 may include a frame 111, a drive motor 112, a slide 113, and a lead screw 114. The drive motor 112 is mounted on the frame 111, the lead screw 114 is rotatably mounted on the frame 111 and driven by the drive motor 112, the slide 113 is movably mounted on the frame 111 and driven by the lead screw 114, and the sealing member 12 is connected to the slide 113. Therefore, under the driving action of the drive motor 112, the rotation of the lead screw 114 can drive the slide 113 to move relative to the frame 111, thereby moving the sealing member 12 through the slide 113. This allows the sealing member 12 to move into and seal the excess length space of the cavity M, thus adjusting the length space of the cavity M. Optionally, the drive motor 112 may be a servo motor.

[0099] Furthermore, 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, such as... Figure 3 As shown. The slide block 113 may include a sliding portion 1131 and a supporting portion 1132 connected together. The sliding portion 1131 is slidably connected to the slide rail 1111, and the supporting portion 1132 extends along the length direction of the cavity M and is slidably connected to the guide groove 1112. The sealing member 12 is slidably connected to the supporting portion 1132. Based on this, with the sliding portion 1131 slidingly engaged with the slide rail 1111 and the supporting portion 1132 slidingly engaged with the guide groove 1112, the smoothness of movement of the slide block 12 can be improved, thereby improving the movement accuracy of the sealing member 12.

[0100] refer to 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 coupled or separated relative to each other. Specifically, when it is necessary to injection mold chain teeth, the first mold 31 and the second mold 32 may be coupled relative to each other to form a cavity M for receiving the injected material, so as to facilitate the formation of chain teeth; when it is necessary to remove 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 removed from the injection mold 30.

[0101] Among them, such as Figure 4 and Figure 5 As shown, the first mold 31 may be provided with a gate 311, a first groove 312 and a first toothed row 313. Correspondingly, the second mold 32 may be provided with a second toothed row 3211, and the second toothed row 3211 is correspondingly arranged with the first toothed row 313. The groove opening of the first groove 312 faces the second mold 32 and forms a cavity M between it and the second mold 32. The cavity M is connected to the first toothed row 313, the second toothed row 3211 and the gate 311 respectively.

[0102] Based on the above configuration, when the first mold 31 and the second mold 32 are relatively combined, the groove of the first groove 312 contacts the surface of the second mold 32, thereby forming a cavity M. When it is necessary to inject chain teeth, 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 tooth row 313 and the second tooth row 3211 to fill the space formed between the first tooth row 313 and the second tooth row 3211. After the injection material cools, chain teeth can be formed.

[0103] To adjust the length of the cavity M, an opening can be provided in the upstream region of the cavity M, through which the sealing member 12 can be moved into or out of the cavity M. Based on this, the length of the cavity M can be adjusted by the length of the sealing member 12 within the cavity M, thereby adjusting the injection length of the chain teeth.

[0104] refer to Figure 5 In some embodiments, the second mold 32 may include a mold body 321 and a lifting module 322. The mold body 321 has 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.

[0105] Based on the above configuration, when the lifting module 322 is close to the first mold 31, the lifting module 322 blocks the opening of the first groove 312, thereby forming a cavity M between the first groove 312 and the lifting module 322; after injection molding is completed, the first mold 31 and the second mold 32 separate, allowing the chain teeth to detach from the first mold 31; then the lifting module 322 can lift the fabric and the injection-molded chain teeth so that the chain teeth can detach from the second mold 32.

[0106] Optionally, the lifting module 322 may include a linear drive and a top block. The linear drive is connected to the top block, and the top block is movably disposed in the second groove 3212 so that the top block can be driven to move in the second groove 3212 by the linear drive.

[0107] To prevent the top block from detaching from the second groove 3212, the second mold 32 may also include a limiting block 323. The limiting block 323 is located at the opening of the second groove 2212 and 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 limiting block 323 can limit the top block in the second groove 3212 to prevent the top block from detaching from the second groove 3212.

[0108] refer to Figure 1 and Figure 6In some embodiments, the injection molding equipment may further include a cutting mechanism 50, located downstream of the injection mold 30 along the fabric conveying direction, for cutting off the sprue marks on the injection-molded chain teeth. This removes excess sprue material from the chain teeth, effectively preventing it from obstructing the sprue and ensuring smooth operation of the sprue. It also improves the appearance of the chain teeth and prevents the sprue material from becoming sharp or irritating.

[0109] Optionally, the cutting mechanism 50 may include an upper cutter and a lower cutter, which may be relatively close to each other to cut the chain tooth gate, or relatively far apart to prepare for the next cut.

[0110] refer to Figure 1 In some embodiments, the injection molding equipment may further include a perforation mechanism 60, located upstream of the conveying mechanism 20 along the fabric conveying direction, for perforating the edge of the fabric with the core thread. Based on this, in the case of injection molding of a pin that engages with the chain teeth, the injection molding material can enter the perforation, thereby improving the stability and firmness of the pin.

[0111] Optionally, the perforation mechanism 60 may include a perforation control cylinder, a support frame, a heating element, a perforation needle, and a sliding frame. The sliding frame is slidably connected to the support frame, the perforation control cylinder is connected to the sliding frame, and both the heating element and the perforation needle are mounted on the sliding frame, with the heating element connected to the perforation needle. Based on this, the heating element can heat the perforation needle, and the perforation control cylinder can drive the sliding frame and the perforation needle to move synchronously, thereby perforating small holes in the fabric through the perforation needle.

[0112] In some embodiments, the first mold 31 may also be provided with a first pin groove, which is located on the side of the first tooth row 313 near the opening and communicates with the cavity M; correspondingly, the second mold 32 may also be provided with a second pin groove opposite to the opening of the first pin groove, which is located on the side of the second tooth row 3211 near the opening and communicates with the cavity M.

[0113] Based on the above configuration, when the first mold 31 and the second mold 32 are combined, the first pin groove and the second pin groove engage with each other to form a pin mold cavity, and the pin mold cavity is connected to the cavity M. In this way, injection molding material can enter the pin mold cavity from the cavity M to achieve injection molding of the pin. For example, the last molded chain teeth can be injection molded together with the pin.

[0114] Optionally, the front end of the sealing 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 sealing member 12, and the sealing member 12 can be prevented from blocking the gate 311 and affecting the injection molding material entering the cavity M, thus ensuring the normal progress of the injection molding process.

[0115] Optionally, the tooth adjustment mechanism 10 may also include a fabric edge limiter, which is located in the injection mold 30. In this way, the fabric edge can be limited by the fabric edge limiter to improve the positional accuracy of the fabric and further improve the injection accuracy of the chain teeth.

[0116] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. 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 toothing adjustment mechanism (10); The conveying mechanism (20) is used to convey the edges of a pair of fabrics with core threads of the garment into the injection mold (30) in stages along the conveying direction to achieve the required injection length. The conveying direction is consistent with the length direction of the cavity (M) of the injection mold (30). The tooth adjustment mechanism (10) is used to adjust the length space of the cavity (M) of the injection mold (30) to the required injection length before each injection. The injection molding mechanism (40) is used to inject injection molding material into the cavity (M); The injection mold (30) is used to form the required length of chain teeth at the edge of the fabric with the core thread.

2. The injection molding equipment according to claim 1, characterized in that, The injection molding equipment includes at least one pair of conveying mechanisms, each pair of conveying mechanisms including two conveying mechanisms, the two conveying mechanisms being spaced apart along the conveying direction of the fabric and being able to move synchronously along the conveying direction; The two conveying mechanisms are respectively used to convey one piece of a pair of fabrics with core threads in the conveying direction.

3. The injection molding equipment according to claim 1, characterized in that, The tooth alignment adjustment mechanism (10) includes: a drive assembly (11) and a sealing component (12); The drive assembly (11) is connected to the sealing member (12) and is used to drive the sealing member (12) to move along the length direction of the cavity (M) so that the sealing member (12) moves into and seals the excess length space of the cavity (M).

4. The injection molding equipment according to claim 3, characterized in that, The drive assembly (11) includes a frame (111), a drive motor (112), a slide (113), and a lead screw (114). The drive motor (112) is mounted on the frame (111). The lead screw (114) is rotatably mounted on the frame (111) and is connected to the drive motor (112) for transmission. The slide (113) is movably mounted on the frame (111) and is connected to the lead screw (114) for transmission. The sealing element (12) is connected to the slide (113).

5. The injection molding equipment according to claim 4, characterized in that, The frame (111) is provided with slide rails (1111) and guide grooves (1112) extending along the length direction of the cavity (M). The slide block (113) includes a sliding part (1131) and a supporting part (1132) connected together. The sliding part (1131) is slidably connected to the slide rail (1111), and the supporting part (1132) extends along the length direction and is slidably connected to the guide groove (1112). The sealing element (12) is connected to the bearing part (1132).

6. The injection molding equipment according to claim 3, characterized in that, The injection mold (30) includes a first mold (31) and a second mold (32) that can be joined or separated from each other. The first mold (31) is provided with a gate (311), a first groove (312) and a first toothed row (313), and the second mold (32) is provided with a second toothed row (3211) corresponding to the first toothed row (313). The groove of the first groove (312) faces the second mold (32) and forms the cavity (M) between the groove and the second mold (32). The cavity (M) is connected to the first toothed row (313), the second toothed row (3211) and the gate (311) respectively. The upstream region of the cavity (M) is provided with an opening, through which the sealing member (12) can be moved into or out of the cavity (M).

7. The injection molding equipment according to claim 6, characterized in that, The second mold (32) includes a mold body (321) and a lifting module (322); The mold body (321) has a second groove (3212) on the side facing the first mold (31). The lifting module (322) is movably disposed in the second groove (3212) in the direction of approaching or moving away from the first mold (31), and is disposed opposite to the gate (311). When the lifting module (322) is in a state close to the first mold (31), the lifting module (322) blocks the opening of the first groove (312).

8. The injection molding equipment according to claim 1, characterized in that, The injection molding equipment also includes a cutting mechanism (50), which is located downstream of the injection mold (30) along the conveying direction of the fabric and is used to cut off the sprue after injection molding.

9. The injection molding equipment according to claim 1, characterized in that, The injection molding equipment also includes a perforation mechanism (60), which is located upstream of the conveying mechanism (20) along the conveying direction of the fabric and is used to perforate the edge of the fabric with the core thread.

10. The injection molding equipment according to claim 9, characterized in that, The perforation mechanism (60) includes a support frame, a melting hole control cylinder, a heating element, 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 element and the fusion needle are mounted on the sliding frame, and the heating element is connected to the fusion needle.

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