Injection mold

Abstract

The utility model discloses an injection mold, and relates to the field of electronic atomization device manufacturing, the injection mold comprises a fixed mold and a movable mold, the fixed mold and the movable mold are used for forming an injection molding cavity during mold closing; the injection molding cavity comprises a product forming area and a runner, the product forming area comprises at least two forming cavities used for forming products, the runner is communicated with the forming cavities, the runner comprises outer runners, and the outer runners are arranged on at least one pair of opposite sides of the product forming area. The injection molding cavity comprises a runner, the runner is provided with outer runners, and the outer runners are arranged on at least one pair of opposite sides of the product forming area. And after injection molding, silk-screen printing can be directly carried out on an injection molding workpiece of which the runner is not removed. And during screen printing, the outer runner is matched with a positioning part on the screen printing device, so that the workpiece is positioned. Due to the fact that the outer runner is located outside the product forming area, positioning of the silk-screen workpiece is facilitated, direct contact with the workpiece is not needed for positioning, the situation that the surface of the product is scratched due to positioning is avoided, and the quality of the silk-screen product is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of electronic atomization device manufacturing, and specifically to an injection mold for molding electronic atomization device components. Background Art

[0002] During the manufacturing process of electronic atomizer devices, screen printing is performed on their components, such as the outer shell. This process requires positioning of the injection-molded workpiece. Currently, workpiece positioning during screen printing is poor, and the contact and positioning of the workpiece can lead to scratches, which affects the product appearance and reduces product quality. Utility Model Content

[0003] The present application provides an injection mold for solving the problem of inconvenient positioning during silk screen printing.

[0004] In some embodiments, an injection mold is provided, comprising:

[0005] A fixed mold; a movable mold, wherein the fixed mold and the movable mold are used to form an injection cavity when the molds are closed;

[0006] The injection cavity includes a product molding area and a flow channel. The product molding area includes at least two molding cavities for forming products. The flow channel is connected to each of the molding cavities. The flow channel includes at least two external flow channels. The product molding area is located between the two external flow channels.

[0007] In some embodiments, the outer flow channel includes a first flow channel and a second flow channel, wherein the first flow channel is disposed on two opposite sides of the product molding area, and the second flow channel is disposed on two other opposite sides of the product molding area.

[0008] In some embodiments, the first flow channel and the second flow channel are combined to form the annular outer flow channel, and the product molding area is located in the annular outer flow channel.

[0009] In some embodiments, the outer flow channel is at least partially enclosed in a rectangular or elliptical shape.

[0010] In some embodiments, a plurality of mounting holes are provided on the movable mold, and a movable part is respectively installed in each of the mounting holes; when the fixed mold and the movable mold are in a clamped state, one end of the movable part can extend into the flow channel.

[0011] In some embodiments, at least a portion of the movable members are located on two opposite sides of the product forming area.

[0012] In some embodiments, the flow channel further includes an inner flow channel, which is located between adjacent molding cavities and communicates with the molding cavities.

[0013] In some embodiments, the inner runner and the outer runner are respectively connected to the molding cavity through a gate, and a gate is provided on two opposite sides of each molding cavity.

[0014] In some embodiments, each molding cavity adjacent to the outer runner is an outer molding cavity, a gate on one side of each outer molding cavity is communicated with the outer runner, and a gate on the other side of the outer molding cavity is communicated with the inner runner.

[0015] In some embodiments, a molding groove is provided on a side of the movable mold close to the fixed mold, and a side of the fixed mold close to the movable mold is a molding plane, which covers the molding groove to form the injection cavity when the mold is closed.

[0016] According to the injection mold of the above-described embodiment, the injection cavity includes a runner, which includes an outer runner, disposed on at least two opposing sides of the product molding area. After injection molding, the molded workpiece, with the runner still present, can be directly screen-printed. During screen printing, the outer runner cooperates with positioning components on the screen printing device to position the workpiece. Because the outer runner is located outside the product molding area, positioning of the screen-printed workpiece is facilitated. Direct contact with the workpiece is also eliminated during positioning, preventing surface scratches caused by positioning and ensuring the quality of the screen-printed product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of the injection mold in some embodiments;

[0018] Figure 2 A top view of the injection mold in some embodiments, viewed from the fixed mold side toward the movable mold side;

[0019] Figure 3 In some embodiments Figure 2 AA section view;

[0020] Figure 4 Schematic diagram of the structure of the movable mold in some embodiments;

[0021] Figure 5 A schematic diagram of the structure of the injection molding cavity in some embodiments;

[0022] Figure 6 is another structural schematic diagram of the injection molding cavity in some embodiments;

[0023] Figure 7 is another structural schematic diagram of the injection molding cavity in some embodiments;

[0024] Figure 8 Schematic diagram of the structure of the movable parts and the flow channel corresponding to some embodiments;

[0025] The accompanying drawings are numerals as follows:

[0026] 1-fixed mold; 2-movable mold; 3-movable parts; 4-product molding area, 401-molding cavity; 5-inner runner; 6-outer runner, 601-first runner, 602-second runner; 10-injection mold, 1001-injection cavity. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted under different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0028] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various embodiments. Furthermore, the steps or actions in the method description may be reordered or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are provided solely for the purpose of clearly describing a particular embodiment and are not intended to be mandatory, unless otherwise specified.

[0029] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0030] In the manufacturing process of the atomizing device, there is a problem of inconvenience in positioning the workpiece when the workpiece is screen printed. The present application sets an outer flow channel outside the product forming area, and performs screen printing positioning through the outer flow channel, thereby solving the problem of inconvenience in positioning the screen printed workpiece.

[0031] Please refer to Figures 1 to 8 In some embodiments, an injection mold is provided. The injection mold 10 of the embodiment of the present application mainly includes a fixed mold 1 and a movable mold 2. The fixed mold 1 and the movable mold 2 are used to form an injection cavity 1001 when the mold is closed.

[0032] It should be understood that the fixed mold 1 is the stationary portion of the mold, while the movable mold 2 is the movable portion. Specifically, during mold closing, the movable mold 2 moves toward the fixed mold 1 and presses against it to achieve mold closing. After the product is formed, the movable mold 2 moves away from the fixed mold 1 to a predetermined distance, and then the injection mold 10 is opened to facilitate part removal. In this embodiment, the injection cavity 1001 is used to allow the flow of plastic to form the product.

[0033] like Figure 4-Figure 7 As shown, the injection cavity 1001 in this embodiment includes a product molding area 4 and a runner. The product molding area 4 includes at least two molding cavities 401 for forming products. The runner is connected to each molding cavity 401. The runner includes at least two outer runners 6. The outer runners 6 are arranged on at least two opposite sides of the product molding area 4, even if the product molding area 4 is located between the two outer runners 6.

[0034] It is understood that the product molding area 4 in this embodiment may be composed of at least two molding cavities 401, or the product molding area 4 may include other structures in addition to the molding cavities 401. In this embodiment, the molding cavities 401 within the product molding area 4 may be identical, or in some application scenarios, the molding cavities 401 within the product molding area 4 may be different. In this embodiment, the molding cavities 401 are used to form the product. The shape of the molding cavities 401 is the same as the shape of the product. The number of molding cavities 401 can be two or more. When there are more molding cavities 401, they can be arranged in an orderly manner vertically and horizontally to facilitate the arrangement of flow channels. For example, it can be, but is not limited to, a rectangular arrangement, specifically two rows of two columns, four rows of four columns, or six rows of four columns, etc. The flow channel in this embodiment is the portion between the molding cavity 401 and the nozzle for the flow of plastic fluid. In this embodiment, the outer flow channel 6 is located outside the product molding area 4. The outer flow channel 6 can be located only on two opposing sides of the product molding area 4, or it can be located on all four sides of the product molding area 4. In this embodiment, the opposing sides of the product molding area 4 include two opposing left and right sides, or two opposing upper and lower sides.

[0035] In this embodiment, the outer runner 6 is provided on at least two opposite sides of the product molding area 4. After injection molding, the molded workpiece without the runner removed can be directly screen printed. During screen printing, the outer runner 6 cooperates with the positioning component on the screen printing device to form the positioning of the workpiece. Because the outer runner 6 is located outside the product molding area 4, it is convenient to position the screen printed workpiece, and the positioning does not require direct contact with the workpiece, thus avoiding the situation where the product surface is scratched due to positioning, and ensuring the quality of the screen printed product. The product molding area 4 is provided with at least two molding cavities 401, thereby at least two products can be molded at one time, improving production efficiency. Moreover, multiple products can be screen printed at the same time during screen printing, which improves the efficiency of screen printing. After screen printing, the runner is removed to obtain multiple screen printed products at the same time.

[0036] In some embodiments, such as Figure 5The outer flow channel 6 includes a first flow channel 601 and a second flow channel 602. The first flow channel 601 is provided on two opposite sides of the product forming area 4, and the second flow channel 602 is provided on the other opposite sides of the product forming area 4. The first flow channel 601 and the second flow channel 602 are provided on different opposite sides. For example, the first flow channel 601 can be provided on the upper and lower sides of the product forming area 4, and the second flow channel 602 can be provided on the left and right sides of the product forming area 4. In this way, there are flow channels all around the product forming area 4 that can be used for screen printing positioning, which improves positioning during screen printing.

[0037] In some embodiments, the first flow channel 601 and the second flow channel 602 can be enclosed to form an annular outer flow channel 6, and the product molding area 4 is located in the annular outer flow channel 6. The annular outer flow channel 6 has a more stable structure, and it better fixes the product molding area 4, which is more conducive to the positioning of silk screen printing. In some application scenarios, the first flow channel 601 can be connected to the second flow channel 602 but not enclosed. For example, the second flow channel 602 on the left is connected to the first flow channel 601 on the upper side, and the second flow channel 602 on the right can be connected to the first flow channel 601 on the lower side, that is, the outer flow channel 6 is formed at the diagonal position outside the product molding area 4, and the outer flow channel 6 at the diagonal position can also be used for positioning during silk screen printing.

[0038] In some embodiments, the outer runner 6 is at least partially enclosed in a rectangular or elliptical shape, which is more convenient for the uniform flow of the injection fluid. In some application scenarios, the outer runner 6 can also be enclosed in other shapes, such as a trapezoidal shape. The specific shape can be selected according to the external structure of the product molding area 4. The shape of the annular outer runner 6 can be made as similar as possible to the external shape of the product molding area 4. Of course, the shape of the annular outer runner 6 can also be different from the external shape of the product molding area 4 as needed. For example, the external shape of the product molding area 4 is circular, while the annular outer runner 6 is rectangular.

[0039] In some embodiments, such as Figure 3 、 Figure 8 As shown, a plurality of mounting holes are provided on the movable mold 2, and a movable part 3 is respectively assembled in each mounting hole. One end (hereinafter referred to as the ejection end) of each movable part 3 corresponds to the runner, that is, when the fixed mold 1 and the movable mold 2 are in the clamped state, one end of the movable part 3 can extend into the runner.

[0040] The movable part 3 corresponds to the flow channel, so that during ejection, the movable part 3 does not directly contact the product surface, avoiding the situation where the movable part 3 is imprinted on the product surface during ejection, thereby ensuring the appearance quality. The mounting hole in this embodiment is a through hole through which the movable part 3 can pass. The movable part 3 in this embodiment can be fixed by a movable part plate provided in the mold. The movable part plate is on the same side as the movable mold 2. The movement of the movable part plate can drive the movable part 3 to move, so that the ejection end of the movable part 3 pushes against the flow channel to eject the plastic part. The movement of the movable part plate can be driven by a hydraulic cylinder, and the return of the movable part 3 can be achieved by, but not limited to, a spring. The spring is compressed when the movable part 3 moves to eject, and the spring rebounds after ejection, driving the movable part 3 to return.

[0041] In some embodiments, at least a portion of the movable parts 3 are located on opposite sides of the product molding area 4. The movable parts 3 being located on opposite sides of the product molding area 4 allows for better force application to the molded plastic parts during ejection, preventing deformation caused by ejection. In some embodiments, a portion of the movable parts 3 may be located on the left and right sides of the product molding area 4, while a portion of the movable parts 3 may be located on the upper and lower sides of the product molding area 4. Alternatively, movable parts 3 may be located only on the left and right sides of the product molding area 4, or only on the upper and lower sides of the product molding area 4.

[0042] In some embodiments, the flow channel further includes an inner flow channel 5, which is located between adjacent molding cavities 401 and communicates with the molding cavities 401. The inner flow channel 5 is located in the product molding area 4. When there are multiple molding cavities 401, the arrangement of the inner flow channel 5 is more conducive to the flow of plastic fluid into the molding cavity 401. When the flow channel includes the inner flow channel 5, as shown in FIG. Figure 8 As shown, a portion of the movable part 3 may correspond to the outer runner, while another portion of the movable part 3 may correspond to the inner runner. In some embodiments, the nozzle for injecting the plastic fluid into the injection cavity 1001 may correspond to the inner runner 5. The inner runner 5 may include a main runner and a branch runner, and the branch runner is directly connected to the molding cavity 401. To improve molding quality, the inner runner 5 can be designed to have a symmetrical structure as much as possible, and the outer runner 6 can also be designed to have a symmetrical structure. In this embodiment, the nozzle can inject the plastic fluid into the injection cavity 1001 through an injection port provided on the fixed mold 1.

[0043] In some embodiments, the inner runner 5 and the outer runner 6 are connected to the molding cavity 401 through gates, respectively, and a gate is provided on opposite sides of each molding cavity 401. The gate is provided on the side wall of the molding cavity 401. After removing the runner and other waste materials on the plastic part, the quality of the silk-screen surface of the product will not be affected. Moreover, providing a gate on each side of the molding cavity 401 is more conducive to the filling of the plastic fluid into the molding cavity 401. In addition, if the movable part 3 corresponds to the runner, the gates on both sides will drive the product to be demolded when the ejection force is applied, and the product will be better stressed during demolding and less prone to deformation. The gate in this embodiment is an injection port for injecting plastic fluid into the molding cavity 401.

[0044] In some embodiments, each molding cavity 401 adjacent to the outer runner 6 is an outer molding cavity 401, and the gate on one side of each outer molding cavity 401 is connected to the outer runner 6, and the gate on the other side of the outer molding cavity 401 is connected to the inner runner 5. Each outer molding cavity 401 is connected to the outer runner 6, which can form a fixation of the outer runner 6 to the outer molding cavity 401. After molding, the structural stability of the plastic part is better, which is more conducive to silk screen processing and ensures the quality of silk screen printing. Moreover, one side of the outer molding cavity 401 is connected to the outer runner 6, and the other side is connected to the inner runner 5, which is more conducive to the molding of the outer runner 6. The outer molding cavity 401 in this embodiment is the molding cavity 401 located in the outermost circle of the product molding area 4. When the number of molding cavities 401 is small, such as two rows and two columns, as shown in FIG. Figure 7 As shown, each molding cavity 401 is an outer molding cavity 401 .

[0045] In some embodiments, such as Figure 4 As shown, the movable mold 2 has a molding groove on its side near the fixed mold 1, and the fixed mold 1 has a molding surface on its side near the movable mold 2. This surface covers the molding groove when the molds are closed, forming an injection cavity 1001. This injection cavity 1001 ensures that the plastic part remains on the movable mold 2 after the mold is opened, facilitating ejection. In some applications, injection cavity 1001 can also have other structures, as long as they ensure that the plastic part remains on the movable mold 2 after the mold is opened.

[0046] The injection mold 10 in this embodiment is not limited to including the above-mentioned structural components, but may also include other structural components required for the molding of the injection mold 10, such as guide sleeves and guide pillars, mold fixing seats, exhaust structures, cooling systems, etc., which will not be described one by one here.

[0047] In the injection mold 10 of this embodiment, its injection cavity 1001 includes a runner, and the runner has an outer runner 6. The outer runner 6 is provided on at least two opposite sides of the product molding area 4. After injection molding, the molded workpiece without removing the runner can be directly screen printed. During screen printing, the outer runner 6 cooperates with the positioning component on the screen printing device to form the positioning of the workpiece. Because the outer runner 6 is located outside the product molding area 4, it is convenient to position the screen printed workpiece, and the positioning does not require direct contact with the workpiece, avoiding the situation where the product surface is scratched due to positioning, and ensuring the quality of the screen printed product. In addition, the product molding area 4 is provided with at least two molding cavities 401, thereby at least two products can be molded at one time, thereby improving production efficiency. Moreover, during screen printing, multiple products can be screen printed at the same time, thereby improving screen printing efficiency. After screen printing, the runner is removed to obtain multiple screen printed products at the same time. And the movable part 3 corresponds to the flow channel, so when ejecting, the movable part 3 does not directly contact the product surface, especially for transparent and high-gloss products, avoiding the situation where the movable part 3 is printed on the product surface when ejecting, thereby ensuring the appearance quality.

[0048] The above examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. Those skilled in the art of the present invention can make some simple deductions, modifications or substitutions based on the concept of the present invention.

Claims

1. An injection mold, characterized in that: include: Fixed mold; The movable mold, the fixed mold and the movable mold are used to form an injection cavity when the molds are closed; The injection cavity includes a product molding area and a flow channel. The product molding area includes at least two molding cavities for forming products. The flow channel is connected to each of the molding cavities. The flow channel includes at least two external flow channels. The product molding area is located between the two external flow channels.

2. The injection mold according to claim 1, wherein The outer flow channel includes a first flow channel and a second flow channel. The first flow channel is arranged on two opposite sides of the product molding area, and the second flow channel is arranged on the other two opposite sides of the product molding area.

3. The injection mold according to claim 2, wherein: The first flow channel and the second flow channel are combined to form the annular outer flow channel, and the product molding area is located in the annular outer flow channel.

4. The injection mold according to claim 3, wherein: The outer flow channel is at least partially enclosed in a rectangular or elliptical shape.

5. The injection mold according to any one of claims 1 to 4, characterized in that: The movable mold is provided with a plurality of mounting holes, and a movable part is respectively installed in each mounting hole; when the fixed mold and the movable mold are in the clamping state, one end of the movable part can extend into the flow channel.

6. The injection mold according to claim 5, wherein: At least a portion of the movable members are located on two opposite sides of the product forming area.

7. The injection mold according to any one of claims 1 to 4, characterized in that: The flow channel further includes an inner flow channel, which is located between adjacent molding cavities and communicates with the molding cavities.

8. The injection mold according to claim 7, wherein: The inner runner and the outer runner are communicated with the molding cavity through gates respectively, and a gate is correspondingly provided on two opposite sides of each molding cavity.

9. The injection mold according to claim 8, wherein: Each molding cavity adjacent to the outer runner is an outer molding cavity, a gate on one side of each outer molding cavity is communicated with the outer runner, and a gate on the other side of the outer molding cavity is communicated with the inner runner.

10. The injection mold according to any one of claims 1 to 4, characterized in that: A molding groove is provided on one side of the movable mold close to the fixed mold, and a molding plane is provided on one side of the fixed mold close to the movable mold. When the mold is closed, the molding plane covers the molding groove to form the injection cavity.

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