Buckle injection mold

Abstract

The utility model relates to the technical field of buckle molds, and discloses a buckle injection mold which comprises a lower mold, an upper mold and a pouring nozzle, the upper mold is arranged at the upper end of the lower mold in a matched mode through a connecting screw, a buckle is formed between the lower mold and the upper mold in an injection molding mode, the pouring nozzle is located above the upper mold, and an injection molding channel is formed in the bottom end of the pouring nozzle. The injection molding channel extends to the middle position between the lower mold and the upper mold; the lower mold comprises a lower mold core, lower mold core convex blocks, lower mold cavities, lower runners, a lower containing groove and a front through hole, the lower mold core convex blocks are arranged at the four end corners of the top end of the lower mold core correspondingly, the multiple lower mold cavities are symmetrically formed in the upper portion of the lower mold core, and the lower runners are arranged between the rear portions of the lower mold cavities and used for communicating the multiple lower mold cavities; a lower containing groove is formed in the center of the front portion of each lower die cavity, and a front through hole is further formed in the middle of each lower die cavity. By optimizing the mold structure, the size of the mold can be reduced, and injection molding operation and use are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of buckle molds, in particular to a buckle injection mold. Background Art

[0002] Injection molding production has the advantages of fast speed and high efficiency. Injection molds are tools for injection molding production. During injection molding, the heated and melted plastic is injected into the mold cavity, and after cooling and solidification, a molded product is obtained. Car seat belt buckles are widely used and are a necessity for cars. They can be produced in a variety of ways, such as mechanical stamping, etc., and can also be produced by injection molding.

[0003] There are also some buckle injection molds in the prior art, such as the Chinese utility model patent with application number CN201921222973.4, entitled "A Type of Injection Mold for Automobile Seat Belt Buckles", which can be used for injection molding of automobile seat belt buckles, but it mainly solves the problems of easy blockage of the injection molding channel and uneven heating of the mold. Another example is the Chinese utility model patent with application number CN201921222973.4, entitled "A Type of Injection Mold for Automobile Seat Belt Buckles", which mainly improves the stamping mold, can quickly cool the stamping head and extend its service life. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a snap-on injection mold that is different from the existing structure. By optimizing the mold structure, the mold size can be reduced and the injection molding operation and use are convenient.

[0005] The utility model is implemented by the following technical scheme: a buckle injection mold, comprising a lower mold, an upper mold and a pouring nozzle, the upper mold is arranged at the upper end of the lower mold by connecting screws, the lower mold and the upper mold are used for injection molding buckles, the pouring nozzle is located above the upper mold, and the bottom end of the pouring nozzle is provided with an injection path, and the injection path extends to the middle position between the lower mold and the upper mold; the lower mold comprises a lower mold core, a lower mold core protrusion, a lower mold cavity, a lower flow channel, a lower accommodating groove and a front through hole, the four end corners of the top of the lower mold core are respectively provided with lower mold core protrusions, the upper part of the lower mold core is symmetrically provided with a plurality of lower mold cavities, a lower flow channel is provided between the rear parts of the lower mold cavities, and is used to connect the plurality of lower mold cavities, a lower accommodating groove is provided in the front center of each lower mold cavity, and a front through hole is also provided in the middle part of the lower mold cavity.

[0006] Furthermore, the bottom end surface of the lower die core is a square, and the left side section of the lower die core is an isosceles trapezoid.

[0007] Furthermore, the upper mold includes an upper mold core, an upper mold core groove, an upper mold cavity, an upper flow channel, an upper receiving groove and a lower boss. The upper mold core grooves are respectively arranged at the four end corners of the top end of the upper mold core, and a plurality of upper mold cavities corresponding to the lower mold cavity are symmetrically arranged at the lower part of the upper mold core. The upper mold cavity and the lower mold cavity are used together for injection molding buckles. An upper flow channel corresponding to the lower flow channel is arranged between the rear parts of the upper mold cavities, an upper receiving groove is arranged in the front center of each upper mold cavity, and a lower boss is also arranged in the middle part of the upper mold cavity.

[0008] Furthermore, each lower mold cavity is symmetrically provided with rear through holes at the rear, and a plug column is inserted into the rear through hole.

[0009] Furthermore, a through groove is provided in the upper mold cavity, and a second insert block is inserted in the through groove.

[0010] Furthermore, a first inserting block is inserted into the upper receiving groove and the lower receiving groove.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model is a buckle injection mold, wherein the bottom end surface of the lower mold core is a square, the left section of the lower mold core is an isosceles trapezoid, the rear of the lower mold cavity and the lower flow channel are both located at the central high point of the lower mold core, which is convenient for the rapid downflow of the injection molding solution. This structure and setting method can meet the size and linear requirements of the buckle injection molding. By optimizing the mold structure, the mold size can be reduced and it is convenient for injection molding.

[0013] 2. The utility model is a snap-on injection mold, in which the lower mold and the upper mold are tightly connected by connecting screws during injection molding, the first plug-in block is inserted in the upper accommodating groove and the lower accommodating groove, the second plug-in block is inserted in the through groove 23, and the plug-in column is inserted in the rear through hole. It has a simple structure, is easy to operate and use, and can maintain high-efficiency snap-on injection molding processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the buckle injection mold of the utility model;

[0015] Figure 2 It is the front view of the utility model;

[0016] Figure 3 It is a schematic diagram of the bottom structure of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the lower mold in the utility model;

[0018] Figure 5 It is a top view of the lower mold in the utility model;

[0019] Figure 6 It is a structural schematic diagram of the upper mold in the utility model;

[0020] Figure 7 It is a structural schematic diagram of the upper mold during injection molding of the buckle in the utility model.

[0021] In the figure: lower mold 1; upper mold 2; nozzle 3; injection channel 31; connecting screw 4; buckle 6; second plug-in block 7; lower mold core 11; lower mold core protrusion 12; lower mold cavity 13; lower flow channel 14; lower receiving groove 15; front through hole 131; rear through hole 132; upper mold core 21; upper mold core groove 22; upper mold cavity 23; upper flow channel 24; upper receiving groove 25; through groove 231; lower protrusion 232; plug-in column 61; first plug-in block 62. DETAILED DESCRIPTION

[0022] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0023] The utility model aims to provide a buckle injection mold to address the defects of the prior art.

[0024] Embodiment 1

[0025] This embodiment provides a buckle injection mold, referring to Figure 1 , Figure 2 As shown, it includes a lower mold 1, an upper mold 2 and a pouring nozzle 3. The upper mold 2 is detachably arranged on the upper end of the lower mold 1 through connecting screws 4. The mold cavity formed between the lower mold 1 and the upper mold 2 is used for injection molding of the buckle. The pouring nozzle 3 is located above the upper mold 2. The bottom end of the pouring nozzle 3 is provided with an injection channel 31, and the injection channel 31 extends to the middle position between the lower mold 1 and the upper mold 2.

[0026] Reference Figure 4As shown, the lower mold 1 includes a lower mold core 11, a lower mold core protrusion 12, a lower mold cavity 13, a lower flow channel 14, a lower accommodating groove 15 and a front through hole 131. The four end corners of the top of the lower mold core 11 are respectively provided with lower mold core protrusions 12, and four lower mold cavities 13 are symmetrically arranged on the upper part of the lower mold core 11. A lower flow channel 14 is arranged between the rear parts of the lower mold cavities 13. The lower flow channel 14 is semicircular and is used to connect the four lower mold cavities 13. A lower accommodating groove 15 is arranged in the front center of each lower mold cavity 13, and a front through hole 131 is also arranged in the middle part of the lower mold cavity 13. The bottom end face of the lower mold core 11 in this embodiment is a square, the left side section of the lower mold core 11 is an isosceles trapezoid, and the rear part of the lower mold cavity 13 and the lower flow channel 14 are both located at the central high point of the lower mold core 11, so that the center of the lower mold core 11 is higher and the two sides are lower, which is convenient for the rapid downflow of the injection molding solution. This structure and setting method can meet the size and linear requirements of the buckle injection molding, and can also reduce the thickness of the mold core, which can better match the shape of the buckle, making the injection mold smaller in size.

[0027] Reference Figure 5-Figure 7 As shown, the upper mold 2 includes an upper mold core 21, an upper mold core groove 22, an upper mold cavity 23, an upper flow channel 24, an upper receiving groove 25 and a lower convex column 232. The upper mold core groove 22 is respectively provided at the four end corners of the top of the upper mold core 21. The lower part of the upper mold core 21 is symmetrically provided with four upper mold cavities 23 corresponding to the lower mold cavity 13. The upper mold cavity 23 and the lower mold cavity 13 are used together for injection molding the buckle 6. The upper flow channel 24 corresponding to the lower flow channel 14 is provided between the rear parts of the upper mold cavity 23. The upper flow channel 24 is also semicircular and is used to connect the four lower mold cavities 13. The upper flow channel 24 and the lower flow channel 14 together form an arc-shaped injection flow channel. An upper receiving groove 25 is provided at the front center of each upper mold cavity 23, and a lower convex column 232 is also provided in the middle of the upper mold cavity 23. A first inserting block 62 is inserted into the upper receiving groove 25 and the lower receiving groove 15 , so that a rectangular first through hole is formed at the front of the buckle during injection molding.

[0028] Reference Figure 3-Figure 7 As shown, each lower mold cavity 13 is symmetrically provided with rear through holes 132 at the rear, and a plug post 61 is inserted into the rear through hole 132, so that a plurality of circular through holes are formed at the rear of the buckle during injection molding. Figure 1 As shown, a through slot 231 is provided in the upper mold cavity 23, and a second insert block 7 is inserted in the through slot 231, so that a narrow rectangular second through hole is formed at the rear of the buckle during injection molding.

[0029] The utility model discloses a buckle injection mold, which is used for injection molding buckles. During injection molding, the lower mold 1 and the upper mold 2 are tightly connected by connecting screws 4, and the plug posts 61, the second plug block 7 and the first plug block 62 are respectively inserted. Then, the solution after the plastic particles are heated and melted is poured in through the pouring nozzle 3, and it enters the injection flow channel composed of the upper flow channel 24 and the lower flow channel 14 along the injection channel 31, and then enters the lower mold cavity 13 and the upper mold cavity 23 respectively. After cooling, the connecting screws 4 are removed to separate the lower mold 1 from the upper mold 2. Take out the first plug block 62 inserted in the upper receiving groove 25 and the lower receiving groove 15, so that a rectangular first through hole is formed in the front of the buckle 6 for use with the female buckle; take out the second plug block 7 inserted in the through groove 231, so that a narrower rectangular second through hole is formed in the rear of the buckle 6 for connection with the safety belt; take out the plug post 61 inserted in the rear through hole 132, so that a circular through hole is formed in the rear of the buckle 6 for installation and fixing of the buckle protective cover. The buckle injection mold has a simple structure, is easy to operate and use, and can maintain high efficiency of buckle injection molding processing.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A buckle injection mold, characterized in that: The invention comprises a lower mold (1), an upper mold (2) and a pouring nozzle (3); the upper mold (2) is arranged at the upper end of the lower mold (1) by means of a connecting screw (4); the lower mold (1) and the upper mold (2) are used for injection molding of a buckle; the pouring nozzle (3) is located above the upper mold (2); the bottom end of the pouring nozzle (3) is provided with an injection path (31); the injection path (31) extends to the middle position between the lower mold (1) and the upper mold (2); the lower mold (1) comprises a lower mold core (11), a lower mold core protrusion (12), and a lower mold cavity (13); , a lower flow channel (14), a lower accommodating groove (15) and a front through hole (131); lower die core protrusions (12) are respectively arranged at the four end corners of the top end of the lower die core (11); a plurality of lower die cavities (13) are symmetrically arranged on the upper part of the lower die core (11); a lower flow channel (14) is arranged between the rear parts of the lower die cavities (13) for connecting the plurality of lower die cavities (13); a lower accommodating groove (15) is arranged at the front center of each lower die cavity (13); and a front through hole (131) is also arranged in the middle part of the lower die cavity (13).

2. The buckle injection mold according to claim 1, characterized in that: The bottom end surface of the lower die core (11) is a square, and the left side section of the lower die core (11) is an isosceles trapezoid.

3. The buckle injection mold according to claim 1 or 2, characterized in that: The upper mold (2) comprises an upper mold core (21), an upper mold core groove (22), an upper mold cavity (23), an upper flow channel (24), an upper receiving groove (25) and a lower convex column (232). The upper mold core grooves (22) are respectively arranged at the four end corners of the top of the upper mold core (21). The lower part of the upper mold core (21) is symmetrically provided with a plurality of upper mold cavities (23) corresponding to the lower mold cavity (13). The upper mold cavity (23) and the lower mold cavity (13) are used together for injection molding the buckle (6). An upper flow channel (24) corresponding to the lower flow channel (14) is arranged between the rear parts of the upper mold cavity (23). An upper receiving groove (25) is arranged at the front center of each upper mold cavity (23), and a lower protruding column (232) is also arranged at the middle of the upper mold cavity (23).

4. The buckle injection mold according to claim 3, characterized in that: A rear through hole (132) is symmetrically arranged at the rear of each lower mold cavity (13), and an insertion column (61) is inserted into the rear through hole (132).

5. The buckle injection mold according to claim 4, characterized in that: A through groove (231) is provided in the upper mold cavity (23), and a second inserting block (7) is inserted in the through groove (231).

6. The buckle injection mold according to claim 5, characterized in that: A first inserting block (62) is inserted into the upper receiving groove (25) and the lower receiving groove (15).

Images