Connecting structure, assembling method of connecting structure, spliced chopsticks and injection mold

Abstract

This application relates to a connecting structure, an assembly method for the connecting structure, spliced ​​chopsticks, and an injection mold. The connecting structure of this application includes a fixing member and a connecting member. The fixing member has a first splicing surface and a first edge line. The first splicing surface has an assembly groove with a draft hole. The connecting member has a second splicing surface and a second edge line. The second splicing surface has a connector. A venting groove is provided on the side of the connector, one end of which penetrates the end face of the connector, and the other end is spaced apart from the second splicing surface. When the connector is inserted into the assembly groove, the venting groove, the assembly groove, and the draft hole are connected. When the connector moves to a first preset position, the first splicing surface and the second splicing surface coincide, and the first edge line coincides with the second edge line. Therefore, this application can be applied to spliced ​​chopsticks. The connecting structure allows for the detachable connection of various segments of the spliced ​​chopsticks. Furthermore, the connecting structure uses a tenon joint, which is easy to process and provides a strong connection.

Description

Technical Field

[0001] This application relates to the technical field of chopsticks, and more specifically, to a connecting structure, an assembly method for the connecting structure, splicing chopsticks, and an injection mold. Background Technology

[0002] When making spliced ​​chopsticks, for reasons of aesthetics, craftsmanship, and portability, the chopsticks are often divided into sections and then spliced ​​and inlaid together.

[0003] However, in existing technologies, a snap-fit ​​structure is generally used to form a fixed connection through the snap-fit. Although this design can achieve the purpose of connecting the various sections of chopsticks, the snap-fit ​​is easy to be damaged, causing the spliced ​​parts to fall off easily. Moreover, it is difficult to process and has high manufacturing costs. Summary of the Invention

[0004] The purpose of this application is to provide a connecting structure, an assembly method for the connecting structure, spliced ​​chopsticks, and an injection mold, which can connect the various segments of the spliced ​​chopsticks in a detachable manner, and the connection is firm and easy to process.

[0005] The embodiments of this application are implemented as follows:

[0006] A connection structure includes a fastener and a connector. The fastener has a first splicing surface and a first edge line on the first splicing surface. An assembly groove is formed on the first splicing surface, and a draft hole is provided on the inner bottom surface of the assembly groove. The connector has a second splicing surface and a second edge line on the second splicing surface. A connector head that mates with the assembly groove is protruding on the second splicing surface. A venting groove is provided on the side of the connector head. One end of the venting groove passes through the end face of the connector head, and the other end extends to the second splicing surface or is spaced apart from the second splicing surface. When the connector head is inserted into the assembly groove, the venting groove, the assembly groove, and the draft hole are connected. When the connector head moves to a first preset position, the first splicing surface and the second splicing surface coincide, and the first edge line coincides with the second edge line.

[0007] In one embodiment, the connection structure includes an adhesive disposed between the connector and the assembly groove.

[0008] In one embodiment, the axis of the assembly groove is perpendicular to the first splicing surface; the axis of the connector is perpendicular to the second splicing surface; and the length direction of the vent groove is in the same direction as the axis of the connector.

[0009] In one embodiment, a draft groove is provided on the first splicing surface and on the inner wall of the assembly groove; a draft protrusion is provided on the second splicing surface and on the outer wall of the connector; when the connector moves to a first preset position, the draft protrusion matches the draft groove.

[0010] In one embodiment, the connector has a draft chamfer at one end away from the second splicing surface. When the connector moves to a first preset position, the draft chamfer matches the draft hole.

[0011] In one embodiment, one end of the connector is connected to the second splicing surface, and the other end is penetrated by the venting groove.

[0012] In one embodiment, the axis of the assembly groove coincides with the axis of the fastener, and the axis of the connector coincides with the axis of the connector.

[0013] An assembly method for a connection structure, using the above-described connection structure, the assembly method comprising:

[0014] An adhesive is applied to the first splicing surface, the second splicing surface, the inner surface of the assembly groove, the inner surface of the draft hole, and / or the outer surface of the connector except for the venting groove.

[0015] Insert the connector into the assembly slot and allow the venting slot to vent until the first splicing surface and the second splicing surface coincide, and the first edge line coincides with the second edge line.

[0016] A type of splicing chopsticks includes a connecting structure and chopstick tips, wherein the connecting structure is the aforementioned connecting structure; and the chopstick tips are disposed on the connecting member or the fixing member.

[0017] In one embodiment, the spliced ​​chopsticks further include a hanging part, which is disposed on the connector or the fixing member.

[0018] In one embodiment, the spliced ​​chopsticks further include stripes, which are disposed on the connector, the fixing member, or the tip of the chopsticks.

[0019] An injection mold includes a first mold body, a first insert, a second mold body, and a second insert. The first mold body has a first insert groove, at least one first temperature control runner, and at least one first molding groove. The first molding groove communicates with the first insert groove and has a first corner line on its inner wall. The first insert is detachably disposed in the first insert groove and has at least one gate and a first mating groove that engages with the first molding groove. The second mold body has a second insert groove, at least one second temperature control runner, at least one first ejector hole, and at least one second molding groove. The second molding groove communicates with the second insert groove and has a second corner line on its inner wall. The second insert is detachably disposed in the second insert groove and has a second ejector hole corresponding to the first ejector hole and a second mating groove that engages with the second molding groove. The first mold body and the second mold body are detachably connected together, the first molding groove and the second molding groove are matched, and the first corner line matches the second corner line.

[0020] In one embodiment, the first mold body is provided with a snap-fit ​​protrusion, and the second mold body is provided with a snap-fit ​​groove that matches the snap-fit ​​protrusion.

[0021] In one embodiment, there are multiple first molding grooves arranged in an array, with the multiple first molding grooves respectively located on both sides of the first insert groove; there are multiple second molding grooves arranged in an array, with the multiple second molding grooves respectively located on both sides of the second insert groove.

[0022] In one embodiment, the inner side of the first insert groove includes two first side surfaces and two second side surfaces arranged opposite to each other; the first side surfaces are perpendicular to the inner bottom surface of the first insert groove, the second side surfaces are inclined relative to the inner bottom surface of the first insert groove, and the first molding groove is disposed on the first side surface.

[0023] In one embodiment, the inner side of the second insert groove includes two third side surfaces and two fourth side surfaces arranged opposite to each other; the third side surfaces are arranged perpendicularly to the inner bottom surface of the second insert groove, and the fourth side surfaces are arranged inclined relative to the inner bottom surface of the second insert groove, and the second molding groove is disposed on the second side surface.

[0024] The advantages of this application compared to the prior art are:

[0025] The splicing chopsticks of this application can be connected together by setting a connecting structure, and the connecting structure adopts a tenon joint structure, which is easy to process and has a firm connection.

[0026] Furthermore, the connection structure of this application, through the venting groove provided on the connector head, can prevent gaps from forming in the assembled chopsticks due to the large pressure difference between the air pressure inside the assembly groove and the atmospheric pressure during assembly, thus preventing them from falling off and improving the firmness of the splicing.

[0027] Furthermore, the assembly method of the connection structure in this application adds an adhesive, which can further improve the firmness of the splicing. The venting groove can also be used to store the reserved adhesive to increase the bonding surface of the adhesive, thereby improving the reliability and firmness of the splicing connection.

[0028] In addition, by setting inserts in the injection mold of this application, the edges of the segments of the spliced ​​chopsticks manufactured by the injection mold can be sharp corners instead of rounded corners, thereby making the overlap between the segments of the spliced ​​chopsticks higher and reducing the generation of gaps. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of spliced ​​chopsticks shown in one embodiment of this application.

[0031] Figure 2 This is an exploded schematic diagram of spliced ​​chopsticks as shown in one embodiment of this application.

[0032] Figure 3 This is a cross-sectional view of a fastener shown in one embodiment of this application.

[0033] Figure 4 This is an exploded schematic diagram of spliced ​​chopsticks as shown in one embodiment of this application.

[0034] Figure 5 This is an exploded schematic diagram of spliced ​​chopsticks as shown in one embodiment of this application.

[0035] Figure 6 This is a schematic flowchart illustrating an assembly method for a connection structure according to an embodiment of this application.

[0036] Figure 7 This is an exploded view of an injection mold according to an embodiment of this application.

[0037] Figure 8 This is an exploded view of an injection mold according to an embodiment of this application.

[0038] Icons: 1-Chopsticks; 100-Chopstick tip; 111-Stripes; 200-Suspension part; 300-Connecting structure; 310-Fixing component; 311-First splicing surface; 312-First edge line; 313-Assembly slot; 314-Draft hole; 315-Draft groove; 320-Connector; 321-Second splicing surface; 322-Second edge line; 323-Connector head; 324-Ventilation slot; 325-Draft protrusion; 326-Draft chamfer; 4-Injection mold; 500-First mold body; 510-First insert slot; 511-First side surface; 512-Second side surface; 513-First inner bottom surface; 520-First temperature control channel; 530-First molding groove; 540-First corner line; 550 - First insert; 551 - First mating groove; 552 - Gate; 553 - Second connecting hole; 560 - Snap-fit ​​protrusion; 580 - First connecting hole; 590 - First fastener; 600 - Second mold body; 610 - Second insert groove; 611 - Third side surface; 612 - Fourth side surface; 613 - Second inner bottom surface; 620 - Second temperature control runner; 630 - Second molding groove; 640 - Second corner line; 650 - Second insert; 651 - Second mating groove; 652 - Second ejector pin hole; 653 - Fourth connecting hole; 660 - Snap-fit ​​groove; 670 - First ejector pin hole; 680 - Third connecting hole; 690 - Second fastener; 700 - Injection molded product package; 701 - Support; 702 - Finished product. Detailed Implementation

[0039] The terms “first,” “second,” “third,” etc., are used only for distinguishing descriptions and do not indicate a sequence number, nor should they be interpreted as indicating or implying relative importance.

[0040] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of this application, it should be noted that the terms "inner", "outer", "left", "right", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0042] In the description of this application, unless otherwise expressly specified and limited, the terms “set up,” “install,” “connect,” and “link” shall be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium; or as a connection within two components.

[0043] The technical solution of this application will now be clearly and completely described with reference to the accompanying drawings.

[0044] Please refer to Figure 1 This is a schematic diagram of the structure of a spliced ​​chopstick 1 according to an embodiment of this application. A spliced ​​chopstick 1 includes a connecting structure 300 and a chopstick tip 100.

[0045] Please refer to Figure 2 This is an exploded view of a spliced ​​chopstick 1 according to an embodiment of this application. A spliced ​​chopstick 1 includes a connecting structure 300 and chopstick tips 100. The connecting structure 300 includes a fixing member 310 and a connecting member 320. The fixing member 310 is provided with an assembly groove 313, and the connecting member 320 is provided with a connector 323 that mates with the assembly groove 313. The connecting structure 300 forms a connection and fixation between the fixing member 310 and the connecting member 320 by inserting the connector 323 into the assembly groove 313.

[0046] The chopstick tip 100 is connected to the connector 320 or the fixing member 310 by means of snap-fit, tenon joint, etc., or the chopstick tip 100 and the connector 320 or the fixing member 310 are integrally formed. When the chopstick tip 100 is provided on the connector 320, the connector 320 can be called the chopstick body and the fixing member 310 can be called the chopstick head; when the chopstick tip 100 is provided on the fixing member 310, the fixing member 310 can be called the chopstick body and the connector 320 can be called the chopstick head. In this embodiment, the chopstick tip 100 is provided on the fixing member 310, and the chopstick tip 100 and the fixing member 310 can be integrally formed.

[0047] The connector 320 and the fastener 310 can be made of materials such as plastic, pure metal, or alloy, and the materials of the connector 320 and the fastener 310 can be the same or different. For example, both the connector 320 and the fastener 310 can be metal parts, or both the connector 320 and the fastener 310 can be plastic parts, with one being a metal part and the other a plastic part.

[0048] In this embodiment, the splicing chopsticks 1 can be connected together by setting a connecting structure 300, and the connecting structure 300 adopts a tenon joint structure, which is easy to process and has a firm connection.

[0049] In one embodiment, the connection structure 300 further includes an adhesive disposed between the connector 323 and the assembly groove 313. Therefore, by adding an adhesive, the strength of the joint can be further improved. The adhesive can be an organic or inorganic glue.

[0050] The spliced ​​chopsticks 1 also includes a hanging part 200, which is disposed on the connector 320 or the fixing part 310. In this embodiment, the hanging part 200 is disposed on the connector 320, that is, the hanging part 200 is disposed on the chopstick tip.

[0051] The spliced ​​chopsticks 1 also include stripes 111, which are provided on the connector 320, the fixing member 310, or the chopstick tip 100. The stripes 111 are multiple evenly distributed strip-shaped grooves, which not only enhance the aesthetic value but also improve the friction. In this embodiment, the stripes 111 are provided on the fixing member 310, that is, the stripes 111 are provided on the chopstick body.

[0052] Please refer to Figure 3 This is a cross-sectional view of a fastener 310 according to an embodiment of this application. The fastener 310 has a first splicing surface 311 and a first edge line 312 provided on the first splicing surface 311. An assembly groove 313 is provided on the first splicing surface 311, and a draft hole 314 is provided on the inner bottom surface of the assembly groove 313. The draft hole 314 is used to allow the fastener 310 to be easily demolded during the manufacturing process of the fastener 310.

[0053] During operation, the fastener 310 and the connector 320 (please refer to...) Figure 2 During assembly without adhesive, the presence of the draft hole 314 compresses some air into the assembly groove 313 and the draft hole 314, creating a pressure difference between the inside of the fastener 310 and the outside. This pressure difference pushes the connector 323 away from the draft hole 314, resulting in an excessive gap between the fastener 310 and the connector 320, and even a risk of detachment.

[0054] During the assembly of the fastener 310 and connector 320 using adhesive, the presence of the draft hole 314 compresses some air into the assembly groove 313 and the draft hole 314, creating a pressure difference between the inside of the fastener 310 and the outside. When the adhesive weakens or fails due to incomplete curing, increased temperature, or normal aging, the pressure difference forces the connector 323 out of the assembly groove 313, resulting in a gap between the fastener 310 and the connector 320.

[0055] Please refer to Figure 4This is an exploded view of a spliced ​​chopstick 1 according to an embodiment of this application. The connector 320 has a second splicing surface 321 and a second edge line 322 provided on the second splicing surface 321. A connector head 323 that mates with the assembly groove 313 is protruding on the second splicing surface 321.

[0056] In this embodiment, the connector 323 is provided with an exhaust groove 324 on its side. One end of the exhaust groove 324 penetrates the end face of the connector 323, and the other end is spaced apart from the second splicing surface 321. That is, one end of the connector 323 is connected to the second splicing surface 321, and the other end is penetrated by the exhaust groove 324.

[0057] In another embodiment, the connector 323 has a venting groove 324 on its side. One end of the venting groove 324 penetrates the end face of the connector 323, and the other end extends to the second splicing surface 321. That is, both ends of the connector 323 are penetrated by the venting groove 324, and one end of the connector 323 is connected to the second splicing surface 321.

[0058] The adhesive is applied to the inner surfaces of the first splicing surface 311, the second splicing surface 321, the assembly groove 313, and / or the outer surface of the connector 323. Before assembly, the adhesive can be applied to any one or more of the following surfaces: the inner bottom surface of the first splicing surface 311, the second splicing surface 321, the assembly groove 313, and the outer surface of the connector 323 (excluding the vent groove 324). The adhesive is not applied to the vent groove 324 to avoid obstructing venting. After assembly, once the vent groove 324 has vented, the adhesive can enter the assembly groove 313 due to the compression between the connector 323 and the assembly groove 313, increasing the adhesive's bonding surface area.

[0059] During the operation, the connector 323 is inserted into the assembly groove 313 and moves inward. Since the vent groove 324, the assembly groove 313 and the draft hole 314 are connected, the gas in the draft hole 314 and the assembly groove 313 is discharged from the vent, which reduces the pressure difference between the inside and outside of the fastener 310. The connector 323 continues to move until it reaches the first preset position (i.e., the bottom end of the assembly groove 313). At this time, the fastener 310 and the connector 320 are assembled. The first splicing surface 311 and the second splicing surface 321 coincide, and the first edge line 312 coincides with the second edge line 322, which can produce the effect of "seamless assembly".

[0060] Therefore, the venting groove 324 in this embodiment can reduce or avoid gaps caused by air pressure difference. In addition, during the assembly process using adhesive, the venting groove 324 can also be used to store the reserved adhesive to increase the bonding surface (contact area) of the adhesive, thereby improving the reliability and firmness of the splicing connection.

[0061] Please refer to Figure 5This is an exploded view of a spliced ​​chopstick 1 according to an embodiment of this application. The axis of the assembly groove 313 is perpendicular to the first splicing surface 311, and the axis of the connector 323 is perpendicular to the second splicing surface 321. The axis of the assembly groove 313 coincides with the axis of the fastener 310, and the axis of the connector 323 coincides with the axis of the connector 320. This arrangement allows the fixing between the connector 323 and the assembly groove 313 to provide better support for the body of the connector 320 and the fastener 310, thereby improving the connection reliability and robustness of the connection structure 300.

[0062] The length direction of the vent groove 324 is aligned with the axial direction of the connector 323. This arrangement ensures that the length direction of the vent groove 324 is the same as the direction of movement of the connector 323 when it is inserted into the assembly slot 313. This extends the venting time of the vent groove 324 during the assembly of the fastener 310 and the connector 320, reduces the pressure difference between the inside and outside of the fastener 310, and improves the reliability and robustness of the connection structure 300.

[0063] A draft groove 315 is provided on the first splicing surface 311 and on the inner wall of the assembly groove 313; a draft protrusion 325 is provided on the second splicing surface 321 and on the outer wall of the connector 323; when the connector 323 moves to the first preset position, the draft protrusion 325 matches the draft groove 315. Since the draft protrusion 325 abuts against the inner bottom surface of the draft groove 315, the connection reliability and firmness of the connection structure 300 can be improved.

[0064] The connector 323 has a draft chamfer 326 on the end away from the second splicing surface 321. When the connector 323 moves to the first preset position, the draft chamfer 326 matches the draft hole 314. Since the draft chamfer 326 abuts against the inner wall of the draft hole 314, the connection reliability and firmness of the connection structure 300 can be improved.

[0065] Please refer to Figure 6 This is a flowchart illustrating an assembly method for a connection structure 300 according to an embodiment of this application. This method can be used in, for example... Figures 1 to 5 The connection structure 300 is shown. The assembly method of the connection structure 300 may include the following steps:

[0066] Step S101: Apply adhesive to the inner surface of the first splicing surface 311, the second splicing surface 321, the inner surface of the assembly groove 313, the inner surface of the draft hole 314, and / or the outer surface of the connector 323 except for the venting groove 324.

[0067] In this step, adhesive can be applied to any one or more of the following surfaces: the first splicing surface 311, the second splicing surface 321, the inner bottom surface of the assembly groove 313, and the outer surface of the connector 323 (excluding the venting groove 324). The adhesive is not applied to the venting groove 324 in this step to avoid obstructing venting. The adhesive in this step can be glue.

[0068] Step S102: Insert the connector 323 into the assembly slot 313 and allow the venting slot 324 to vent until the first splicing surface 311 and the second splicing surface 321 overlap, and the first edge line 312 overlaps with the second edge line 322.

[0069] In this step, venting the venting groove 324 reduces the pressure difference between the air inside the assembly groove 313 and the atmosphere, preventing detachment and improving the strength of the joint. After the venting groove 324 is vented, the adhesive can enter the assembly groove 313 due to the squeezing action between the connector 323 and the assembly groove 313, increasing the bonding surface of the adhesive and improving the strength of the joint.

[0070] Please refer to Figure 7 This is an exploded view of an injection mold 4 according to an embodiment of this application. An injection mold 4 includes a first mold body 500, a first insert 550, a second mold body 600, and a second insert 650. The second mold body 600 is located above the first mold body 500. The first mold body 500 has a snap-fit ​​protrusion 560, and the second mold body 600 has a snap-fit ​​groove 660 that matches the snap-fit ​​protrusion 560. The first mold body 500 and the second mold body 600 are detachably connected together via the snap-fit ​​protrusion 560 and the snap-fit ​​groove 660. In this embodiment, both the first mold body 500 and the second mold body 600 are cuboids, and four snap-fit ​​protrusions 560 are provided, each located at one of the four corners.

[0071] The first mold body 500 is provided with a first insert groove 510 and at least one first molding groove 530. The first molding groove 530 communicates with the first insert groove 510 and the first molding groove 530 has a first corner line 540 provided on the inner wall of the first insert groove 510. The first insert 550 is detachably provided in the first insert groove 510. The first insert 550 is provided with at least one gate 552 and a first mating groove 551 that mates with the first molding groove 530.

[0072] When the first insert 550 is placed in the first insert groove 510, the first molding groove 530 is connected to the first docking groove 551, and the gate 552 can be used to supply molten plastic or other preforms.

[0073] The second mold body 600 is provided with a second insert groove 610, at least one first ejector pin hole 670 and at least one second molding groove 630. The second molding groove 630 communicates with the second insert groove 610 and has a second corner line 640 provided on the inner wall of the second insert groove 610. The second insert 650 is detachably provided in the second insert groove 610. The second insert 650 is provided with a second ejector pin hole 652 corresponding to the first ejector pin hole 670 and a second mating groove 651 that mates with the second molding groove 630.

[0074] When the second insert 650 is placed in the second insert groove 610, the second molding groove 630 is connected to the second mating groove 651, and the first ejector hole 670 is connected to the second ejector hole 652. The first ejector hole 670 and the second ejector hole 652 can be used for ejector demolding.

[0075] Multiple first forming grooves 530 are provided and arranged in an array. These first forming grooves 530 are arranged in two rows, symmetrically positioned on both sides of the first insert groove 510. Similarly, multiple second forming grooves 630 are provided and arranged in an array. These second forming grooves 630 are arranged in two rows, symmetrically positioned on both sides of the second insert groove 610. Therefore, this embodiment can produce multiple connectors 320 or fasteners 310 at once, improving production efficiency.

[0076] When the first mold body 500 and the second mold body 600 are connected together, a first molding groove 530 and a second molding groove 630 form a complete molding cavity, and a first corner line 540 and a second corner line 640 form a complete corner line. A first mating groove 551 and a second mating groove 651 form a complete connecting cavity, which can connect multiple molding cavities.

[0077] The injection molded product package 700 formed by injection mold 4 consists of a support 701 and multiple finished products 702 connected to the support 701. The finished products 702 can be the segmented structures of chopsticks 1, or the connectors 320 or fasteners 310 of the connecting structure 300. When the injection mold 4 of this embodiment is used to manufacture the connectors 320 of the connecting structure 300, the structure of the molding cavity matches the structure of the connectors 320, and the corner lines match the second edge line 322; when it is used to manufacture the fasteners 310, the structure of the molding cavity matches the structure of the fasteners 310, and the corner lines match the first edge line 312.

[0078] In one operation, the first mold body 500, the first insert 550, the second mold body 600, and the second insert 650 are assembled. The first mold body 500 serves as the front mold, and the second mold body 600 serves as the rear mold. The first mold body 500 is connected to the front mold frame, and the second mold body 600 is connected to the rear mold frame. Molten plastic, metal, or other injection molding solutions are poured into the injection mold 4 under pressure through the gate 552. After cooling and molding, the injection molded product package 700 is obtained by casting. The injection molded product package 700 is then divided into a bracket 701 and multiple finished products 702. Finally, the finished products 702 can be trimmed or otherwise processed.

[0079] In this embodiment, by setting the first insert 550 and the second insert 650, the spliced ​​chopsticks 1 manufactured by the injection mold 4 can be segmented (connector 320 or fixing member 310) to form a first edge line 312 and a second edge line 322, making their edges sharp corners instead of rounded corners produced by the usual injection mold 4 processing process. This results in a higher degree of overlap between the segments of the spliced ​​chopsticks 1, avoids gaps caused by rounded corners and other process angles in the connecting structure 300 in the spliced ​​chopsticks 1, improves the firmness of the connecting structure 300, and also avoids the formation of obvious seams.

[0080] The first mold body 500 is provided with at least one first temperature control port 520. The first temperature control port 520 forms an independent circuit inside the first mold body 500. The first temperature control port 520 can be connected to a water storage box, an oil storage box and a gas storage box for the flow of media such as water, oil or gas, thereby controlling the temperature of the first mold body 500 and the first insert 550.

[0081] The second mold 600 is provided with at least one second temperature control port 620. The second temperature control port 620 forms an independent circuit inside the second mold 600. The second temperature control port 620 can be connected to a water storage box, an oil storage box and a gas storage box for the flow of media such as water, oil or gas, thereby controlling the temperature of the second mold 600 and the second insert 650.

[0082] Please refer to Figure 8 This is an exploded view of an injection mold 4 according to an embodiment of this application. The inner side of the first insert groove 510 includes two first side surfaces 511 and two second side surfaces 512 arranged opposite to each other; the inner bottom surface of the first insert groove 510 is a first inner bottom surface 513.

[0083] The first side surface 511 is perpendicular to the first inner bottom surface 513, the second side surface 512 is inclined relative to the first inner bottom surface 513, and the first forming groove 530 penetrates the first side surface 511.

[0084] In this embodiment, the first insert 550 is a quadrangular prism structure, and the first insert groove 510 is a quadrangular prism structure; the first side surface 511 is the mold core surface, that is, the contact surface with the injection molded product package 700. In this embodiment, the first side surface 511 is treated as a straight surface (perpendicular to the first inner bottom surface 513), and the second side surface 512 is the surface that does not contact the injection molded product package 700. In this embodiment, the second side surface 512 is treated as a draft surface (adding a slope). This setting can ensure that the product produced by the injection mold 4 will not have a tilt angle on the first splicing surface 311 or the second splicing surface 321, avoid gaps in the connecting structure 300 in the spliced ​​chopsticks 1 due to the draft surface of the injection mold 4, improve the firmness of the connecting structure 300, and also avoid the formation of obvious seams.

[0085] The inner side of the second insert groove 610 includes two oppositely arranged third side surfaces 611 and two oppositely arranged fourth side surfaces 612; the inner bottom surface of the second insert groove 610 is the second inner bottom surface 613.

[0086] The third side surface 611 is perpendicular to the second inner bottom surface 613, the fourth side surface 612 is inclined relative to the second inner bottom surface 613, and the second forming groove 630 penetrates the third side surface 611.

[0087] In this embodiment, the second insert 650 is a quadrangular prism structure, and the second insert groove 610 is a quadrangular prism structure; the third side surface 611 is the mold core surface, that is, the contact surface with the injection molded product package 700. In this embodiment, the third side surface 611 is treated as a straight surface (perpendicular to the second inner bottom surface 613); the fourth side surface 612 is the surface that does not contact the injection molded product package 700. In this embodiment, the fourth side surface 612 is treated as a draft surface (adding a slope). This setting can ensure that the product produced by the injection mold 4 will not have a tilt angle on the first splicing surface 311 or the second splicing surface 321, avoiding gaps in the connecting structure 300 in the spliced ​​chopsticks 1 due to the draft surface of the injection mold 4, improving the firmness of the connecting structure 300, and also avoiding obvious seams.

[0088] In this embodiment, the first mold 500 and the second mold 600 are cuboid structures. Four first temperature control openings 520 are provided, each located on one side wall of the first mold 500. Four second temperature control openings 620 are also provided, each located on one side wall of the second mold 600.

[0089] The first mold body 500 has two first connecting holes 580 on the inner bottom surface (first inner bottom surface 513) of the first insert groove 510, and the two first connecting holes 580 are respectively close to the two second side surfaces 512.

[0090] The first insert 550 has two second connecting holes 553 at each end, corresponding to the two first connecting holes 580. Multiple gates 552 are provided, all located between the two second connecting holes 553. In this embodiment, the gates 552 are through holes, and three are provided.

[0091] A first fastener 590 is inserted into the first connecting hole 580 and the second connecting hole 553, and the first mold body 500 and the first insert 550 are connected by the first fastener 590.

[0092] The second mold body 600 has two third connecting holes 680 on the inner bottom surface (second inner bottom surface 613) of the second insert groove 610, and the two third connecting holes 680 are respectively located near the two fourth side surfaces 612. Multiple first ejector pin holes 670 are provided, all located between the two third connecting holes 680. In this embodiment, the first ejector pin holes 670 are through holes, and there are three of them.

[0093] The second insert 650 has two fourth connecting holes 653 at each end, corresponding to the two third connecting holes 680. Multiple second ejector pin holes 652 are provided, all located between the two fourth connecting holes 653. In this embodiment, the second ejector pin holes 652 are through holes, and there are three of them.

[0094] The second fastener 690 is inserted into the third connecting hole 680 and the fourth connecting hole 653, and the second mold body 600 and the second insert 650 are connected by the second fastener 690.

[0095] In this embodiment, the first fastener 590 and the second fastener 690 are bolts or screws. Correspondingly, the first connecting hole 580 and the third connecting hole 680 are threaded holes, and the second connecting hole 553 and the fourth connecting hole 653 are countersunk through holes or threaded holes.

[0096] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0097] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An injection mold characterized in that, The injection mold is applied to spliced chopsticks and comprises: a first mold body provided with a first insert slot, at least one first temperature control channel opening and at least one first forming slot, the first forming slot being communicated with the first insert slot, and the first forming slot having a first corner line provided on the inner wall of the first insert slot; a first insert detachably provided in the first insert slot, the first insert being provided with at least one gate and a first butt joint slot butt-jointed with the first forming slot; a second mold body provided with a second insert slot, at least one second temperature control channel opening, at least one first ejector pin hole and at least one second forming slot, the second forming slot being communicated with the second insert slot, and the second forming slot having a second corner line provided on the inner wall of the second insert slot; and a second insert detachably provided in the second insert slot, the second insert being provided with a second ejector pin hole corresponding to the first ejector pin hole and a second butt joint slot butt-jointed with the second forming slot; wherein the first mold body and the second mold body are detachably connected together, the first forming slot and the second forming slot are matched, and the first corner line and the second corner line are matched; wherein the spliced chopsticks comprise: a connecting structure comprising a fixing member and a connecting member, and the spliced chopsticks further comprise a chopstick tip provided on the connecting member or the fixing member; wherein the fixing member and the connecting member are made of different materials; wherein the fixing member has a first splicing surface and a first edge line provided on the first splicing surface, the first splicing surface is provided with an assembly slot, and the inner bottom surface of the assembly slot is provided with a stripping hole; the connecting member has a second splicing surface and a second edge line provided on the second splicing surface, and the second splicing surface is provided with a connecting head matched with the assembly slot; the side surface of the connecting head is provided with an exhaust slot, one end of the exhaust slot penetrates the end surface of the connecting head, and the other end extends to the second splicing surface or is spaced apart from the second splicing surface; when the connecting head is arranged in the assembly slot, the exhaust slot, the assembly slot and the stripping hole are communicated; when the connecting head moves to a first preset position, the first splicing surface and the second splicing surface overlap, and the first edge line and the second edge line overlap.

2. The injection mold of claim 1, wherein The first forming slot is provided with a plurality of first forming slots arranged in an array, and the plurality of first forming slots are respectively arranged on both sides of the first insert slot; the second forming slot is provided with a plurality of second forming slots arranged in an array, and the plurality of second forming slots are respectively arranged on both sides of the second insert slot.

3. The injection mold of claim 2, wherein The inner side surface of the first insert slot comprises two first side surfaces arranged oppositely and two second side surfaces arranged oppositely; the first side surface is vertically arranged with the inner bottom surface of the first insert slot, the second side surface is inclinedly arranged relative to the inner bottom surface of the first insert slot, and the first forming slot is arranged on the first side surface; the inner side surface of the second insert slot comprises two third side surfaces arranged oppositely and two fourth side surfaces arranged oppositely; The third side surface is vertically arranged with respect to the inner bottom surface of the second insert groove, and the fourth side surface is obliquely arranged with respect to the inner bottom surface of the second insert groove.

4. The injection mold of claim 1, wherein, The spliced chopstick further comprises: A hanging part is arranged on the connecting part or the fixing part.

5. The injection mold of claim 1, wherein, The connecting structure comprises: An adhesive is arranged between the connecting head and the assembly groove.

6. The injection mold of claim 1, wherein, The axis of the assembly groove is vertically arranged with respect to the first splicing surface, and the axis of the assembly groove is coincidentally arranged with the axis of the fixing part; The axis of the connecting head is vertically arranged with respect to the second splicing surface, and the axis of the connecting head is coincidentally arranged with the axis of the connecting part; The length direction of the exhaust groove is arranged in the same direction as the axis direction of the connecting head.

7. Injection mold according to any one of claims 1, 5, 6, characterized in that A demolding groove is arranged on the first splicing surface and on the inner wall of the assembly groove; a demolding protrusion is arranged on the second splicing surface and on the outer wall of the connecting head; A demolding chamfer is arranged on the end of the connecting head away from the second splicing surface; When the connecting head moves to the first preset position, the demolding protrusion is matched with the demolding groove, and the demolding chamfer is matched with the demolding hole.

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