Pouring mold and pouring equipment

Abstract

The utility model discloses a pouring mold and pouring equipment, the pouring mold comprises a mold body, a cavity and at least one discharge groove, the mold body is provided with a sprue gate, the cavity is formed in the mold body, the cavity is communicated with the sprue gate, the discharge groove is formed in the mold body, the discharge groove is communicated with the cavity, and the discharge groove extends to the outside of the mold body. The mold cavity is communicated with the vacuum box through the discharge groove, so that the vacuum level in the mold cavity and the vacuum box is kept consistent while the vacuum box is vacuumized during material injection, and bubbles are prevented from being generated due to the fact that the vacuum value in the mold cavity cannot meet the requirement.

Description

Technical Field

[0001] This application relates to the field of vacuum casting molding, and particularly to a casting mold and casting equipment. Background Art

[0002] In the existing APG (Automatic Pressure Gelation - epoxy resin automatic pressure gelation molding technology) casting technology, for the production of high - voltage insulation components such as solid - enclosed pole columns and post insulators, vacuum casting process is generally adopted. However, the currently widely used vacuum casting mold design generally lacks the key structure of a drain groove, which causes a series of problems in the actual production process.

[0003] Specifically, in the initial stage of APG casting, inserts are accurately placed into the mold, and then the inside of the mold is evacuated to ensure that all air and impurities can be removed during the injection process, thereby improving the electrical insulation performance and mechanical strength of the product. However, when the vacuum value reaches the preset standard and injection starts, a significant problem emerges: although the vacuum chamber continuously maintains a high - vacuum state to maintain the purity of the overall environment, the vacuum state in the cavity after the injection nozzle is pushed in is difficult to maintain the same vacuum level as the vacuum chamber due to the lack of continuous evacuation. This inconsistency in vacuum values often leads to residual bubbles in the cavity, and then defects are formed inside the product, seriously affecting its quality. Summary of the Utility Model

[0004] In view of this, the purpose of this application is to overcome the deficiencies in the prior art and provide a casting mold and equipment.

[0005] To achieve the above - mentioned purpose, the technical solution adopted in this application is as follows:

[0006] This application provides:

[0007] A casting mold, the casting mold includes:

[0008] A mold body, the mold body has a casting port;

[0009] A cavity, the cavity is opened inside the mold body, and the cavity is communicated with the casting port;

[0010] At least one drain groove, the drain groove is opened on the mold body, the drain groove is communicated with the cavity, and the drain groove extends to the outside of the mold body.

[0011] Further, the mold body includes a fixed mold and a movable mold, the fixed mold and the movable mold are detachably connected, and the cavity is defined by the fixed mold and the movable mold.

[0012] Further, the discharge chute has a discharge port that communicates with the outside of the mold body, and the discharge port is located at the bottom of the mold body.

[0013] Further, the discharge chute is inclined with respect to the pouring port of the mold body.

[0014] Further, the length of the cross-section of the discharge chute is L, and the width of the cross-section of the discharge chute is H, where 5 mm < L < 15 mm and 0.5 mm < H < 5 mm.

[0015] Further, the discharge chute is provided on the mold closing surface of the fixed mold and / or on the mold closing surface of the movable mold.

[0016] Further, a material receiving member is provided at the discharge port of the discharge chute, and the material receiving member is used to receive the pouring material discharged from the discharge chute.

[0017] Further, the material receiving member includes a material guiding member and at least one material receiving box, and the material receiving box is located at the position of the discharge port of the discharge chute;

[0018] When the number of the material receiving boxes is greater than one, the material guiding member is provided between two adjacent material receiving boxes.

[0019] Further, the material guiding member includes a fixing plate, and material guiding plates are provided on both sides of the fixing plate. An avoidance hole is provided in the fixing plate located at the position of the pouring port of the discharge chute.

[0020] The present application also discloses a pouring device, which includes a vacuum box and the pouring mold described in any one of the above items. The vacuum box includes:

[0021] A first box body;

[0022] A second box body, the first box body is detachably connected to the second box body, and the first box body and the second box body define an installation cavity;

[0023] The pouring mold is installed in the installation cavity.

[0024] In the present application, the cavity is communicated with the vacuum box through the discharge chute, so that when pouring, while evacuating the vacuum box, the vacuum level in the cavity is kept consistent with that in the vacuum box, thereby preventing bubbles from being generated due to the vacuum value in the cavity not meeting the requirements.

[0025] To make the above objects, features, and advantages of the present application more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes the following detailed description. Description of the Drawings

[0026] To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0027] Figure 1 Shows the schematic structural diagram of the explosion state of the casting mold of the present application;

[0028] Figure 2 Shows the schematic diagram of the positional relationship between the casting mold and the material receiving part of the present application;

[0029] Figure 3 Shows the front view schematic diagram of the fixed mold in the present application;

[0030] Figure 4 Shows the bottom view schematic diagram of the casting mold of the present application;

[0031] Figure 5 Shows the three-dimensional structural schematic diagram of the material receiving part of the present application;

[0032] Figure 6 Shows the structural schematic diagram of the material guiding part of the present application;

[0033] Figure 7 Shows the schematic diagrams of the material guiding grooves respectively opened in the states of the fixed mold and the movable mold of the present application;

[0034] Figure 8 Shows the structural schematic diagram of the material guiding groove opened in the state of the fixed mold of the present application;

[0035] Figure 9 Shows the schematic diagram of the positional relationship among the vacuum box, the casting mold and the material receiving part of the present application.

[0036] Main element symbol description:

[0037] 100, casting mold; 110, mold body; 111, fixed mold; 112, movable mold; 120, cavity; 130, discharge groove; 140, insert; 200, material receiving part; 210, material receiving box; 220, material guiding part; 221, fixing plate; 222, material guiding plate; 230, avoidance hole; 300, vacuum box; 310, first box body; 320, second box body. Detailed implementation manners

[0038] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals designate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.

[0039] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

[0040] In addition, the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0041] In the present application, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0042] In the present application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0043] Embodiment:

[0044] The mold body 110 is installed in the vacuum chamber 300. During APG casting, the insert 140 is precisely placed into the cavity 120 of the mold body 110. Subsequently, the cavity 120 and the vacuum chamber 300 are evacuated to ensure that all air and impurities can be removed during the material injection process, thereby improving the electrical insulation performance and mechanical strength of the product. However, when the vacuum value reaches the preset standard and material injection begins, a significant problem emerges. Although the vacuum chamber 300 continuously maintains a high vacuum state to maintain the purity of the overall environment, after the injection nozzle is closely attached to the injection port of the mold body 110, the vacuum state in the cavity 120 is difficult to maintain the same vacuum level as the vacuum chamber 300 due to the lack of continuous evacuation. This inconsistency in vacuum values often leads to residual bubbles in the cavity, which in turn form defects inside the product, seriously affecting its quality.

[0045] Based on the above casting defects, in this application, at least one discharge groove 130 is opened on the mold body 110, and the cavity 120 is connected to the vacuum chamber 300 through the discharge groove 130. For this reason, when casting the product material into the cavity 120, the vacuum chamber 300 is continuously evacuated. On the premise that the discharge groove 130 is connected, the vacuum value in the cavity 120 is the same as the vacuum value in the vacuum chamber 300, so that bubbles will not be generated due to the cavity 120 not reaching the vacuum value, improving the product quality.

[0046] It should be noted here that the mold body 110 in this application is mainly used for casting and producing insulating basins. Of course, other products can also be produced according to needs. When producing other types of products, only the shape of the cavity 120 needs to be changed.

[0047] Furthermore, when casting the product, if abnormal phenomena such as leakage occur, the leaked material can flow out through the discharge groove 130 and will not flow into the insert 140 located in the cavity 120, thereby preventing damage to the insert 140 and improving the reliability of the entire mold body 110 during the production process.

[0048] Specifically, the casting mold 100 includes a mold body 110, a cavity 120, and a discharge groove 130. Among them, the mold body 110 has a casting port, the cavity 120 is opened inside the mold body 110, and the cavity 120 is connected to the casting port; there is at least one discharge groove 130, the discharge groove 130 is opened on the mold body 110, the discharge groove 130 is connected to the cavity 120, and the discharge groove 130 extends to the outside of the mold body 110.

[0049] Refer to Figure 1 、 Figure 2 and Figure 9As shown, the discharge chute 130 in the present application is located at the bottom of the mold body 110 and on the same side as the injection port of the mold body 110. The cavity 120 is connected to the vacuum box 300 through the discharge chute 130, so that the vacuum values between the inside of the cavity 120 and the vacuum box 300 are the same during pouring, thus preventing a large number of bubbles in the product due to the vacuum value of the cavity 120 not meeting the requirements. Furthermore, on the premise that the discharge chute 130 balances the vacuum values between the cavity 120 and the vacuum box 300, the quality of the product is improved.

[0050] Furthermore, during the injection process, leakage may occur in the cavity 120. When leakage occurs, the material inside the cavity 120 can flow out through the discharge chute 130, preventing the material from flowing into the screw holes in the insert 140 and causing scrapping, thereby improving the reliability of the mold body 110 during injection.

[0051] Specifically, the cross-sectional shape of the discharge chute 130 can be rectangular, square, circular, elliptical, etc. In this embodiment, the cross-sectional shape of the discharge chute 130 is rectangular. There will be a detailed description of the discharge chute 130 below, and no more elaboration will be made here.

[0052] The mold body 110 includes a fixed mold 111 and a movable mold 112. The fixed mold 111 is detachably connected to the movable mold 112, and the cavity 120 is defined by the fixed mold 111 and the movable mold 112.

[0053] Refer to Figure 2 As shown, the fixed mold 111 can be in a fixed state, and the movable mold 112 can be driven to move by a corresponding driving member. The driving member drives the movable mold 112 to approach or move away from the fixed mold 111, so as to realize the mold closing and mold opening actions. Usually, the fixed mold 111 and the movable mold 112 have a large mass, so a hydraulic cylinder can be selected as the driving member as the power source.

[0054] It can be understood that both the fixed mold 111 and the movable mold 112 are provided with mold cavities adapted to the shape of the product. The two mold cavities on the fixed mold 111 and the movable mold 112 cooperate to form a cavity 120 adapted to the shape of the product. The surface where the fixed mold 111 and the movable mold 112 are in contact and cooperate is the mold closing surface.

[0055] The discharge chute 130 has a discharge port communicating with the outside of the mold body 110, and the discharge port is located at the bottom of the mold body 110.

[0056] Refer to Figures 1 to 4As shown, in order to enable the material that may leak in the cavity 120 to drain out through the drain groove 130 under the action of gravity, the outlet of the drain groove 130 needs to be located below the cavity 120. Only when the drain groove 130 is completely located below the cavity 120 can the leaked material drain out through the drain groove 130 under the action of gravity.

[0057] Specifically, the outlet of the drain groove 130 is located on the lower surface of the mold body 110.

[0058] The drain groove 130 is inclined with respect to the pouring gate of the mold body 110.

[0059] Refer to Figures 2 to 4 As shown, in order to enable the leaked material to flow to a predetermined position, the drain groove 130 can be inclined. That is, the inclined setting of the drain groove 130 can change its outlet position, making the leaked material flow to a predetermined position, which is convenient for collecting the leaked material.

[0060] Furthermore, the inclination angle of the drain groove 130 is not limited here and can be designed according to actual needs.

[0061] The length of the cross-section of the drain groove 130 is L, and the width of the cross-section of the drain groove 130 is H, where 5 mm < L < 15 mm and 0.5 mm < H < 5 mm.

[0062] Exemplarily, the cross-section length of the drain groove 130 is 5 mm and the width is 0.5 mm, which can meet the required length for the material to flow out and prevent the material from not flowing out smoothly due to too small a length. Furthermore, the cross-section length of the drain groove 130 can be selected as 10 mm and the width as 5 mm. The larger length can enable the material to flow out smoothly and is also conducive to processing. Further, the cross-section length of the drain groove 130 can preferably be selected as 10 mm and the width as 1 mm, which is convenient for processing the drain groove 130 on the premise of ensuring smooth outflow.

[0063] The drain groove 130 is provided on the mating surface of the stationary mold 111 and / or on the mating surface of the moving mold 112.

[0064] Refer to Figure 2 、 Figure 3 and Figure 8 As shown, the drain groove 130 is opened on a single surface. That is, the drain groove 130 can be separately opened on the mating surface of the stationary mold 111 or on the mating surface of the moving mold 112. The advantage of this setting is that only the mating surface of the stationary mold 111 or the moving mold 112 needs to be processed, reducing the processing procedures and improving the efficiency.

[0065] Refer to Figure 7As shown, the discharge chute 130 is divided into two parts here. That is, one part is opened on the mold clamping surface of the fixed mold 111, and the other part is opened on the mold clamping surface of the movable mold 112. When the fixed mold 111 and the movable mold 112 are clamped, the two parts of the discharge chute 130 are combined together to form a complete discharge chute 130.

[0066] In this embodiment, in order to reduce the processing cost and improve the processing efficiency, it is selected that the discharge chute 130 is opened on a single surface, that is, as Figure 8 shown, the discharge chute 130 is separately opened on the fixed mold 111, or the discharge chute 130 is separately opened on the movable mold 112. It should be noted here that Figure 8 only the state where the discharge chute 130 is separately opened on the fixed mold 111 is shown.

[0067] A receiving member 200 is provided at the discharge port of the discharge chute 130, and the receiving member 200 is used to receive the casting material discharged from the discharge chute 130.

[0068] The receiving member 200 includes a guiding member 220 and at least one receiving box 210, and the receiving box 210 is located at the discharge port position of the discharge chute 130.

[0069] Referring to Figure 1 、 Figure 2 、 Figure 5 and Figure 9 shown, the discharged material is collected by the receiving box 210 located at the discharge port position of the discharge chute 130. If the leaked material is not collected, it may cause pollution or component damage inside the vacuum box 300, etc.

[0070] When the number of the receiving boxes 210 is greater than 1, the guiding member 220 is arranged between two adjacent receiving boxes 210.

[0071] Referring to Figure 3 shown, there are multiple discharge chutes 130. In this embodiment, there are three discharge chutes 130. In practice, the number of the discharge chutes 130 can be designed according to needs and is not specifically limited here.

[0072] Referring to Figure 5 shown, since there are multiple discharge chutes 130, in order to collect the materials discharged from the multiple discharge chutes 130, multiple receiving boxes 210 can be used for receiving. And in order to prevent the material from being discharged into the gap between two adjacent receiving boxes 210, two adjacent receiving boxes 210 are connected by the guiding member 220, so as to guide the material discharged to the guiding member 220 into the receiving box 210 for collection.

[0073] The material guiding member 220 includes a fixing plate 221, and material guiding plates 222 are provided on both sides of the fixing plate 221. An avoidance hole 230 is formed in the fixing plate 221 at the position of the pouring port of the discharge groove 130.

[0074] Referring to Figure 2 , Figure 5 and Figure 6 As shown, when the material guiding member 220 is located at the injection port position of the mold body 110, an avoidance hole 230 can be formed on the upper surface of the fixing plate 221 for avoidance, so that the injection nozzle passes through the avoidance hole 230 and is combined with the injection port of the mold body 110 to complete injection. Further, by providing the material guiding plates 222 on both sides of the fixing plate 221, the diversion of materials can be realized. In this embodiment, the fixing plate 221 and the material guiding plates 222 can be bent and formed.

[0075] Further, convex edges (not marked in the figure) are provided on the side edges of the fixing plate 221 and the material guiding plates 222, and the materials are guided by the convex edges to the material receiving box 210.

[0076] In this application, a pouring device is further provided. The pouring device includes a vacuum box 300 and the pouring mold described in any one of the above. The vacuum box 300 includes a first box body 310 and a second box body 320. The first box body 310 and the second box body 320 are detachably connected, and the first box body 310 and the second box body 320 define an installation cavity, and the pouring mold described in any one of the above is installed in the installation cavity.

[0077] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0078] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A casting mold, characterized in that, The casting mold (100) comprises: A mold body (110), wherein the mold body (110) has a pouring gate; A mold cavity (120), the mold cavity (120) is opened inside the mold body (110), and the mold cavity (120) is connected to the pouring gate; At least one discharge chute (130), the discharge chute (130) is opened on the mold body (110), the discharge chute (130) is communicated with the mold cavity (120), and the discharge chute (130) extends to the outside of the mold body (110).

2. The casting mold according to claim 1, characterized in that The mold body (110) comprises a fixed mold (111) and a movable mold (112), wherein the fixed mold (111) and the movable mold (112) are detachably connected, and the mold cavity (120) is defined and formed by the fixed mold (111) and the movable mold (112).

3. The pouring mold according to claim 1, characterized in that, The discharge chute (130) has a discharge port communicating with the outside of the mold body (110), and the discharge port is located at the bottom of the mold body (110).

4. The pouring mold according to claim 1, characterized in that The discharge chute (130) is arranged obliquely relative to the pouring port of the mold body (110).

5. The pouring mold according to claim 1, characterized in that, The length of the cross section of the discharge chute (130) is L, and the width of the cross section of the discharge chute (130) is H, wherein 5mm<L<15mm, and 0.5mm<H<5mm.

6. The casting mold according to claim 2, characterized in that The discharge chute (130) is arranged on the die-matching surface of the fixed die (111) and / or on the die-matching surface of the movable die (112).

7. The pouring mold according to claim 1, characterized in that, A material receiving piece (200) is provided at the discharge port of the discharge chute (130), and the material receiving piece (200) is used to receive the casting material discharged from the discharge chute (130).

8. The pouring mold according to claim 7, characterized in that, The material receiving member (200) comprises a material guiding member (220) and at least one material receiving box (210), wherein the material receiving box (210) is located at the material outlet of the material discharge chute (130); When the number of the material receiving boxes (210) is greater than 1, the material guiding member (220) is arranged between two adjacent material receiving boxes (210).

9. The casting mold according to claim 8, wherein, The material guide member (220) comprises a fixed plate (221), and material guide plates (222) are provided on both sides of the fixed plate (221). The fixed plate (221) located at the pouring port of the discharge chute (130) is provided with an avoidance hole (230).

10. A pouring device, characterized in that, The invention comprises a vacuum box (300) and the casting mold according to any one of claims 1 to 9, wherein the vacuum box (300) comprises: a first housing (310); a second box body (320), wherein the first box body (310) and the second box body (320) are detachably connected, and the first box body (310) and the second box body (320) define a mounting cavity; The casting mold is installed in the installation cavity.

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