One-piece needle seat injection mold

Abstract

The utility model discloses a conjoined needle bed injection mold, which relates to the technical field of molds, and comprises a lower mold and an upper mold, and the lower mold comprises a lower cavity plate; the upper mold comprises an upper cavity plate, sliding grooves are formed in the sides, away from each other, of the two upper cavities in the same group of the upper cavity plate, the sliding grooves are communicated with the upper cavities, a plurality of side sliding plates are arranged on the lower mold in a sliding mode, the side sliding plates correspond to the sliding grooves in a one-to-one mode, and the sliding direction of the side sliding plates is the horizontal direction; during injection molding, the upper mold and the lower mold are combined, materials are injected into the cavities through the injection molding runner, after the materials in the cavities are cured, the upper mold is far away from the lower mold, the upper cavity plate is far away from the lower cavity plate at the moment, and meanwhile, the linkage pieces enable the side sliding plates to slide outwards, so that the upper cavity plate is conveniently separated from an injection molded product; after the upper die leaves the lower die, the upper half part of the product is exposed, the product is conveniently taken out, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a one-piece needle seat injection mold. Background Art

[0002] The terminal block is an accessory product used to achieve electrical connection. With the increasing degree of industrial automation and the increasingly stringent and precise requirements for industrial control, the use of terminal blocks has gradually increased. With the development of the electronics industry, the use of terminal blocks has become more and more extensive, and there are more and more types. They are widely used in PCB boards and other circuit concentration places. The terminal block includes a connecting needle holder and a needle holder plug. When in use, the needle holder plug is inserted into the connecting needle holder.

[0003] The connecting needle seat is a part of the terminal block and is usually produced by one-piece injection molding. The connecting needle seat injection mold in the prior art performs injection molding by opening a groove (injection molding cavity) that matches the connecting needle seat on the mold. As a type of connecting needle seat, the one-piece needle seat is in the shape of a long strip. Therefore, after the injection molding is completed, the one-piece needle seat is buried in the groove and is not easy to remove, which affects the processing efficiency.

[0004] In view of this, a one-piece needle seat injection mold is urgently needed. Summary of the invention

[0005] In view of the problems existing in the prior art, the utility model solves the problems with the following technical structure.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A one-piece needle seat injection mold, comprising: a lower mold and an upper mold, the lower mold comprising a lower cavity plate, the top of the lower cavity plate is provided with multiple groups of lower cavities, the multiple groups of lower cavities are distributed in a straight line, each group of the lower cavities is composed of two lower cavities arranged in parallel, and the lower cavities are adapted to the bottom of the one-piece needle seat;

[0008] The upper mold includes an upper cavity plate, the bottom end of the upper cavity plate is provided with multiple groups of upper cavities, the multiple groups of upper cavities are distributed in a straight line, each group of the upper cavities is composed of two upper cavities arranged in parallel, the multiple upper cavities correspond to the multiple lower cavities one by one, and the upper cavities are adapted to the top of the conjoined needle seat;

[0009] The upper cavity plate is provided with a slide groove on one side of the two upper cavities of the same group away from each other, the slide groove is connected with the upper cavity, a plurality of side slide plates are slidably arranged on the lower mold, the plurality of side slide plates correspond to the plurality of slide grooves one by one, and the sliding direction of the side slide plates is horizontal;

[0010] The upper mold is respectively connected to a plurality of side slides through linkage members. When the upper mold moves away from the lower mold, the plurality of side slides slide outwardly of the lower mold. When the upper mold approaches the lower mold, the plurality of side slides slide inwardly of the lower mold;

[0011] An injection runner extending to a plurality of upper cavities is provided on the upper mold.

[0012] It is further characterized in that

[0013] The linkage member includes a linkage column. The linkage column is provided on the upper mold. The linkage column is inclined. The inclination direction of the linkage column extends from one end of the upper mold to the side away from the upper cavity. An inclined hole adapted to the linkage column is provided on the side slide.

[0014] The lower mold is provided with clamping grooves at both ends of each side slide. The two ends of the side slide are respectively clamped in the corresponding clamping grooves.

[0015] The linkage member further includes a limiting plate. The limiting plate is provided on the upper mold. A first inclined surface is provided at the outer end of the side slide. The inclination direction of the first inclined surface is the same as the inclination direction of the inclined hole. A second inclined surface adapted to the first inclined surface is provided on the limiting plate.

[0016] An injection port is provided at the top end of the mold. The injection port is in communication with the injection runner.

[0017] A plurality of telescopic rods are provided on the upper mold. The two ends of the telescopic rods are respectively connected to the upper mold and the lower mold.

[0018] A plurality of shock-absorbing members are provided on the lower mold.

[0019] The lower mold is provided with ejector rods at the bottom of each lower cavity. The ejector rods penetrate to the corresponding lower cavity. A driving member for driving the plurality of ejector rods to move up and down is provided on the lower mold.

[0020] A plurality of first cooling channels are provided in the upper cavity plate.

[0021] A plurality of second cooling channels are provided in the lower cavity plate.

[0022] Adopting the above structure of the present utility model can achieve the following beneficial effects:

[0023] During injection molding, the upper mold and the lower mold are combined, and materials are injected into a plurality of cavities through the injection runner. After the materials in the cavities are solidified, the upper mold is moved away from the lower mold. At this time, the upper cavity plate moves away from the lower cavity plate, and at the same time, a plurality of linkage members cause a plurality of side slides to slide outwardly, facilitating the separation of the upper cavity plate from the injection-molded product. After the upper mold leaves the lower mold, the upper half of the product is exposed, facilitating the removal of the product and improving the processing efficiency. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the present application;

[0025] Figure 2 It is a schematic structural diagram of the lower mold and the upper cavity plate in the present application;

[0026] Figure 3 It is a schematic structural diagram of the top of the lower mold in the present application;

[0027] Figure 4 It is a schematic structural diagram of the lower cavity plate and the upper cavity plate in the present application;

[0028] Figure 5 It is a schematic structural diagram of the upper cavity plate in the present application;

[0029] Figure 6 It is a schematic structural diagram of the upper mold and the lower cavity plate in the present application;

[0030] Figure 7 It is a schematic structural diagram of the inside of the lower mold in the present application.

[0031] In the figure: 1, lower cavity plate; 11, lower cavity; 12, second cooling channel; 2, upper cavity plate; 21, upper cavity; 22, chute; 23, first cooling channel; 3, side slide plate; 31, inclined hole; 4, linkage column; 5, injection port; 6, telescopic rod; 7, shock absorber; 8, limiting plate; 81, second inclined surface; 9, ejector rod. Detailed Description of the Embodiment

[0032] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0033] It should be noted that the terms "including" and "having" and any variations thereof in the description and claims of the present utility model and the above-mentioned drawings are intended to cover non-exclusive inclusion. For example, a process, method, device, product or equipment that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or equipment.

[0034] The following will further elaborate on the present application in conjunction with the attached Figures 1 - 7 drawings.

[0035] Reference Figures 1 - 5 As shown, a combined pin base injection mold includes: a lower mold and an upper mold. The lower mold includes a lower cavity plate 1. A plurality of lower cavities 11 are opened at the top end of the lower cavity plate 1. The plurality of lower cavities 11 are linearly distributed. Each group of lower cavities 11 is composed of two juxtaposed lower cavities 11. The lower cavity 11 is adapted to the bottom of the combined pin base. The upper mold includes an upper cavity plate 2. A plurality of upper cavities 21 are opened at the bottom end of the upper cavity plate 2. The plurality of upper cavities 21 are linearly distributed. Each group of upper cavities 21 is composed of two juxtaposed upper cavities 21. The multiple upper cavities 21 correspond to the multiple lower cavities 11 one by one. The upper cavity 21 is adapted to the top of the combined pin base. On the upper cavity plate 2, chutes 22 are opened on both sides where the two upper cavities 21 in the same group are away from each other. The chutes 22 communicate with the upper cavities 21. A plurality of side sliding plates 3 are slidably arranged on the lower mold. The plurality of side sliding plates 3 correspond to the plurality of chutes 22 one by one. The sliding direction of the side sliding plate 3 is the horizontal direction. The upper mold and the plurality of side sliding plates 3 are respectively connected by linkage members. When the upper mold moves away from the lower mold, the plurality of side sliding plates 3 slide outwardly to the outside of the lower mold. When the upper mold approaches the lower mold, the plurality of side sliding plates 3 slide inwardly to the inside of the lower mold. An injection runner extending to the plurality of upper cavities 21 is arranged on the upper mold. In this way, during injection molding, the upper mold and the lower mold are combined, and materials are injected into the multiple cavities (the upper cavity and the corresponding lower cavity form a complete cavity) through the injection runner. After the materials in the cavities are solidified, the upper mold is moved away from the lower mold. At this time, the upper cavity plate 2 moves away from the lower cavity plate 1. At the same time, the plurality of linkage members cause the plurality of side sliding plates 3 to slide outwardly, facilitating the separation of the upper cavity plate 2 from the injection-molded product. After the upper mold leaves the lower mold, the upper half of the product is exposed, facilitating the removal of the product and improving the processing efficiency.

[0036] Reference Figures 2 - 5 As shown, the linkage member includes a linkage column 4. The linkage column 4 is arranged on the upper mold. The linkage column 4 is inclined. The inclination direction of the linkage column 4 extends from one end of the upper mold to the side away from the upper cavity 21. An inclined hole 31 adapted to the linkage column 4 is arranged on the side sliding plate 3. In this way, when the linkage column 4 moves upward with the upper mold, the side sliding plate 3 slides outwardly. When the linkage column 4 moves downward with the lower mold, the side sliding plate 3 slides inwardly to the inside of the mold. And in order to limit the sliding direction of the side sliding plate 3, clamping grooves are arranged at both ends of each side sliding plate 3 on the lower mold. Both ends of the side sliding plate 3 are respectively clamped in the corresponding clamping grooves. In this way, the side sliding plate 3 moves along the horizontal direction.

[0037] Reference Figures 3 - 6As shown in the figure, in order to improve the linkage effect and limit the movement range of the opposite side slide plate 8, the linkage member further includes a limiting plate 8. The limiting plate 8 is arranged on the upper mold. The outer end of the side slide plate 3 is provided with a first inclined surface 32, and the inclination direction of the first inclined surface 32 is the same as that of the inclined hole 31. The limiting plate 8 is provided with a second inclined surface 81 adapted to the first inclined surface 32. In this way, when the upper mold moves towards the lower mold side, the second inclined surface 81 of the limiting plate 8 abuts against the first inclined surface 32 of the side slide plate 3, causing the side slide plate 3 to move inwards and cooperate with the linkage column 4 to ensure the accurate position of the side slide plate 3.

[0038] Reference Figure 1 As shown in the figure, an injection port 5 is provided at the top end of the mold, and the injection port communicates with the injection runner. In this way, injection is carried out into the injection runner through the injection port 5 to simultaneously inject multiple cavities.

[0039] Reference Figure 6 As shown in the figure, in order to ensure the accurate cooperation between the upper mold and the lower mold, multiple telescopic rods 6 are provided on the upper mold. The two ends of the telescopic rods 6 are respectively connected to the upper mold and the lower mold. Through the setting of the telescopic rods 6, the movement of the upper mold is guided.

[0040] For further optimization, in order to improve the service life of the mold, reference Figure 1 As shown in the figure, several shock-absorbing members 7 are provided on the lower mold. In this way, when the upper mold and the lower mold are combined, the shock-absorbing members 7 buffer the movement of the upper mold. The shock-absorbing members 7 can be composed of a sleeve rod and a spring sleeved on the sleeve rod.

[0041] Reference Figure 7 As shown in the figure, in order to facilitate the removal of the injection molded product from the lower cavity 11, ejector rods 9 are provided at the bottom of each lower cavity 11 of the lower mold. The ejector rods 9 penetrate to the corresponding lower cavity 11. A driving member for driving the multiple ejector rods 9 to move up and down is provided on the lower mold. In this way, by driving the multiple ejector rods 9 to move upwards through the driving member, the injection molded product is ejected from the lower cavity 11 from the bottom of the injection molded product, further improving the injection efficiency. The driving member can be an electric cylinder or a cylinder, and the multiple ejector rods 9 can be arranged on a synchronous plate, so that the electric cylinder or the cylinder drives the synchronous plate to achieve the purpose of synchronously driving the ejector rods 9 to move.

[0042] In order to accelerate the curing of the injection molded product, reference Figure 4 and Figure 5 As shown in the figure, several first cooling channels 23 are arranged in the upper cavity plate 2, and several second cooling channels 12 are arranged in the lower cavity plate 1. In this way, by injecting coolant into the first cooling channels 23 and the second cooling channels 12, the material in the cavity cures faster, further improving the processing efficiency.

[0043] The working principle of the utility model is as follows: during injection molding, the upper mold is merged with the lower mold, and materials are injected into multiple cavities (the upper cavity and the corresponding lower cavity form a complete cavity) through the injection runner. After the material in the cavity is solidified, the upper mold is moved away from the lower mold. At this time, the upper cavity plate 2 is away from the lower cavity plate 1. At the same time, multiple linkage parts cause multiple side slide plates 3 to slide outward, making it easy for the upper cavity plate 2 to separate from the injection molded product. When the upper mold leaves the lower mold, the upper half of the product is exposed, which is convenient for taking out the product and improving the processing efficiency.

[0044] The above are only preferred embodiments of the present application, and the present invention is not limited to the above embodiments. It is understood that other improvements and changes directly derived or associated by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included in the protection scope of the present invention.

Claims

1. A combined pin socket injection mold, characterized in that, include: A lower mold and an upper mold, wherein the lower mold comprises a lower mold cavity plate (1), a top end of the lower mold cavity plate (1) is provided with a plurality of groups of lower mold cavities (11), the plurality of groups of lower mold cavities (11) are distributed in a straight line, each group of the lower mold cavities (11) is composed of two lower mold cavities (11) arranged in parallel, and the lower mold cavities (11) are adapted to the bottom of the conjoined needle seat; The upper mold comprises an upper cavity plate (2), a plurality of groups of upper cavities (21) are provided at the bottom end of the upper cavity plate (2), the plurality of groups of upper cavities (21) are distributed in a straight line, each group of the upper cavities (21) is composed of two upper cavities (21) arranged in parallel, the plurality of upper cavities (21) correspond one to one with the plurality of lower cavities (11), and the upper cavities (21) are adapted to the top of the conjoined needle seat; The upper cavity plate (2) is provided with a slide groove (22) on the side of the two upper cavities (21) of the same group that are away from each other, and the slide groove (22) is connected with the upper cavity (21). A plurality of side slide plates (3) are slidably provided on the lower mold, and the plurality of side slide plates (3) correspond to the plurality of slide grooves (22) one by one, and the sliding direction of the side slide plates (3) is a horizontal direction; The upper mold is connected to a plurality of side slide plates (3) through linkage parts respectively. When the upper mold is away from the lower mold, the plurality of side slide plates (3) slide toward the outer side of the lower mold. When the upper mold is close to the lower mold, the plurality of side slide plates (3) slide toward the inner side of the lower mold. The upper mold is provided with an injection flow channel extending to a plurality of upper cavities (21).

2. The one-piece needle seat injection mold according to claim 1, characterized in that: The linkage part comprises a linkage column (4), wherein the linkage column (4) is arranged on the upper mold, and the linkage column (4) is arranged tilted, and the tilting direction of the linkage column (4) is extended from one end of the upper mold to a side away from the upper cavity (21), and the side slide plate (3) is provided with an inclined hole (31) adapted to the linkage column (4).

3. The one-piece needle seat injection mold according to claim 1, characterized in that: The lower mold is provided with clamping grooves at both ends of each side slide plate (3), and the two ends of the side slide plate (3) are respectively clamped in the corresponding clamping grooves.

4. The one-piece needle seat injection mold according to claim 2, characterized in that: The linkage part also includes a limiting plate (8), which is arranged on the upper mold. The outer end of the side slide plate (3) is provided with a first inclined surface (32), and the inclination direction of the first inclined surface (32) is consistent with the inclination direction of the inclined hole (31). The limiting plate (8) is provided with a second inclined surface (81) adapted to the first inclined surface (32).

5. A combined needle seat injection mold according to claim 1, characterized in that: The top of the mold is provided with an injection port (5), and the injection port is connected with the injection flow channel.

6. The one-piece needle seat injection mold according to claim 1, characterized in that: A plurality of telescopic rods (6) are arranged on the upper mould, and two ends of the telescopic rods (6) are respectively connected to the upper mould and the lower mould.

7. The one-piece needle seat injection mold according to claim 1, characterized in that: The lower mold is provided with a plurality of shock absorbing parts (7).

8. A combined needle base injection mold according to claim 1, characterized in that: The lower mold is provided with a push rod (9) at the bottom of each lower cavity (11), and the push rod (9) penetrates the corresponding lower cavity (11). The lower mold is provided with a driving member for driving the plurality of push rods (9) to perform lifting motion.

9. The one-piece needle seat injection mold according to claim 1, characterized in that: A plurality of first cooling channels (23) are arranged in the upper cavity plate (2).

10. The one-piece needle seat injection mold according to claim 1, characterized in that: A plurality of second cooling channels (12) are arranged in the lower cavity plate (1).

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