Insulating pot casting mold

Abstract

The present application relates to a kind of insulating basin pouring mould, the insulating basin pouring mould, comprising: female die, the concave bottom of female die has female die insert adapter, female die insert adapter is used to adapt with the female side end surface of basin insert;Male die, the convex top of male die has male die insert adapter, male die insert adapter is used to adapt with the male side end surface of basin insert;At least one of the female die insert adapter and male die insert adapter is flush adapter, the edge of flush adapter is flush with the cavity wall of corresponding female die and / or male die;The flush adapter is equipped with insert positioning piece;The insert positioning piece is used to be positioned with the adapter positioning hole on the end surface of basin insert, so that basin insert is positioned in radial direction with corresponding female die and / or male die.By the insert positioning piece of flush adapter on male die and / or female die, flush side of insulating basin is positioned, it is guaranteed that female die and male die do not occur relative movement in radial direction.

Description

TECHNICAL FIELD

[0001] The present application relates to an insulating pot casting mold. BACKGROUND

[0002] The insulating pot is a key component of GIS product, and the quality of the insulating pot directly affects the insulation reliability of the GIS product under high voltage. In the prior art, the insulating pot is generally formed by a casting process, and the key of the casting process lies in the structure and positioning accuracy of the casting mold.

[0003] The structure of an insulating pot in the prior art is shown in Figure 1 The insulating pot 20 includes an insulating body 23 and a pot insert 21, and the upper side and the lower side of the pot insert 21 are provided with threaded holes 22, and the pot insert 21 is connected with the conductor through the threaded holes 22. A corresponding casting mold includes a concave mold and a convex mold, and the concave mold and the convex mold surround a forming cavity, and the center position of the concave mold is provided with a positioning sleeve. When the above-mentioned insulating pot is cast, the pot insert is generally fixed on the positioning sleeve of the concave mold through a positioning bolt, and then the concave mold is placed on the convex mold, and the pot insert is located between the concave mold and the convex mold, and then the concave mold and the convex mold are fixed and assembled together through the fixing structure at the edge of the concave mold and the convex mold, and finally the casting is carried out through the casting opening formed by the concave mold and the convex mold.

[0004] The above-mentioned pot insert is only positioned by the positioning sleeve on the concave mold, and since the pot insert is flush with the adjacent insulating body part, when the concave mold and the convex mold are fixed and assembled, the concave mold and the convex mold are easily moved relatively in the radial direction, and then the pot insert deviates from the center position of the convex mold, and the casting quality of the insulating pot is affected. SUMMARY

[0005] The purpose of the present application is to provide an insulating pot casting mold to solve the technical problem that the pot insert in the prior art is only positioned by the positioning sleeve on the concave mold, and since the pot insert is flush with the adjacent insulating body part, when the concave mold and the convex mold are fixed and assembled, the concave mold and the convex mold are easily moved relatively in the radial direction.

[0006] To achieve the above-mentioned purpose, the technical scheme of the insulating pot casting mold of the present application is:

[0007] The insulating pot casting mold comprises:

[0008] The concave mold has a concave bottom with a concave mold insert adaptation part, and the concave mold insert adaptation part is used to adapt to the concave mold side end face of the pot insert;

[0009] The convex mold has a convex top with a convex mold insert adaptation part, and the convex mold insert adaptation part is used to adapt to the convex mold side end face of the pot insert;

[0010] At least one of the female die insert adapter and the male die insert adapter is a flush adapter, and an edge of the flush adapter is flush with a cavity wall of the corresponding female die and / or male die;

[0011] The flush adapter is provided with an insert positioning member;

[0012] The insert positioning member is used for positioning cooperation with an adapter positioning hole on an end face of the basin insert, so that the basin insert is positioned in the radial direction with the corresponding female die and / or male die.

[0013] The beneficial effect is that when the insulating basin with the basin insert flush with at least one side of the adjacent insulating body is subjected to injection molding, the flush side of the insulating basin is positioned by the insert positioning member of the flush adapter on the male die and / or female die, so that the basin insert is positioned at the central position of the male die and the female die, and the relative movement of the female die and the male die in the radial direction is ensured, thereby ensuring the position accuracy of the basin insert, and improving the injection quality of the insulating basin.

[0014] Further, the flush adapter is provided with an adapter positioning hole, and the adapter positioning hole is used for loading the insert positioning member from the outside of the female die and / or male die.

[0015] The beneficial effect is that the staff can easily operate the insert positioning member from the outside to position the basin insert.

[0016] Further, the adapter positioning hole is arranged on the male die; and the insert positioning member is an insert positioning rod, and an end of the insert positioning rod away from the female die extends out of an end face of the male die facing away from the female die.

[0017] The beneficial effect is that the end of the insert positioning rod away from the female die extends out of the end face of the male die facing away from the female die, which further facilitates the staff to operate the insert positioning rod.

[0018] Further, an outer side of the insert positioning rod is sleeved with a positioning cylinder, one end of the positioning cylinder close to the male die insert adapter is fixed on the male die; both ends of the insert positioning rod are provided with external threads, one end of the insert positioning rod is screwed into the adapter positioning hole on the end face of the basin insert, and the other end is screwed with a pre-tightening nut, and the pre-tightening nut is pressed on the positioning cylinder during screwing to fix the basin insert on the male die.

[0019] The beneficial effect is that the pre-tightening nut and the positioning cylinder can ensure the size of the cavity formed by the male die and the female die.

[0020] Further, a support plate is fixed on the end face of the male die facing away from the female die, and one end of the positioning cylinder away from the male die insert adapter penetrates through the support plate.

[0021] The beneficial effects are: the end of the positioning cylinder away from the punch insert adapter passes through the support plate, which can ensure the stability of the positioning cylinder; and it can also block the pouring liquid, preventing the pouring liquid from entering the cavity of the punch.

[0022] Furthermore, the positioning cylinder has a flange at one end near the punch insert adapter, and the positioning cylinder is fixed to the punch by the flange.

[0023] The beneficial effect is that by setting a flange on the positioning cylinder, it is easier to fix the positioning cylinder to the punch.

[0024] Furthermore, the insert positioning member is an insert positioning rod, and the insert positioning rod has an external thread at one end near the basin insert. The external thread is used to cooperate with the matching positioning hole on the basin insert to realize the positioning of the flush positioning part on the basin insert.

[0025] The beneficial effect is that the positioning rod of the insert engages with the threaded hole on the basin insert to achieve the positioning of the basin insert by the flush positioning part. The threaded hole on the basin insulator can be used directly, without the need to process the matching positioning hole on the basin insert.

[0026] Furthermore, the positioning hole of the adapter is located at the center of the punch.

[0027] The beneficial effect is that by setting the adapter positioning hole at the center of the punch, only one adapter positioning hole is needed to position the basin insert at the center of the punch and / or die.

[0028] Furthermore, the punch insert adapter is a flush adapter, and the punch insert adapter is formed by a positioning plate that is detachably connected to the punch.

[0029] The beneficial effects are: the flatness of the positioning plate is easy to ensure, which helps to improve the positioning accuracy of the basin insert; moreover, the positioning plate can be detachably connected to the punch, making it easy to replace after the positioning plate wears out.

[0030] Furthermore, the die insert adapter is a flush adapter, and the die insert adapter is formed by a positioning sleeve that is detachably connected to the die.

[0031] The beneficial effects are: the flatness of the positioning sleeve is easy to ensure, which helps to improve the positioning accuracy of the basin insert; moreover, the positioning sleeve can be detachably connected to the punch, making it easy to replace after the positioning sleeve wears out. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of an insulating basin in the prior art;

[0033] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the insulating basin casting mold of the present invention;

[0034] Figure 3 for Figure 2 Sectional view along axis AA;

[0035] Figure 1 In the middle: 20-Insulating basin; 21-Basin insert; 22-Threaded hole; 23-Insulator;

[0036] Figure 2 and Figure 3 In the middle: 1-Mold support frame; 2-Positioning plate; 3-Plate insert; 4-Die positioning screw; 5-Screw washer; 6-Positioning sleeve; 7-Die support column; 8-Lifting ring; 9-Die; 10-Punch; 11-Gating gate; 12-Cap; 13-Punch support column; 14-Support plate; 15-Preload nut; 16-Punch positioning screw; 17-Positioning cylinder; 18-Cavity; 19-Bolt. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, and not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0039] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0041] Example 1 of the insulating basin casting mold of the present invention:

[0042] like Figure 2 and Figure 3 As shown, the insulating basin casting mold includes a concave mold 9 and a convex mold 10. The concave mold 9 is positioned above the convex mold 10, and the concave mold 9 and the convex mold 10 are fixedly assembled together by bolts 19. The concave mold 9 and the convex mold 10 form a cavity 18 and a pouring gate 11. The cavity 18 is used to form the insulator of the insulating basin, and the pouring gate 11 communicates with the cavity 18, through which the casting liquid enters the cavity 18. The insulating basin casting mold also includes a cap 12, which is used to seal the pouring gate 11 after casting is completed.

[0043] like Figure 3 As shown, a positioning sleeve 6 is provided at the center of the cavity mold 9. The positioning sleeve 6 constitutes a cavity mold insert adapter. In this embodiment, the cavity mold insert adapter is a flush adapter. The positioning sleeve 6 is fixed to the cavity mold 9 by screws. A screw pad 5 is provided above the positioning sleeve 6. The positioning sleeve 6 and the screw pad 5 are fixedly assembled together by a cavity mold positioning screw 4. The cavity mold positioning screw 4 constitutes an insert positioning rod with an external thread at one end. It should be noted that the middle hole of the positioning sleeve 6 constitutes a demolding hole. The basin insert can be pushed by passing the output end of a jack through the demolding hole, or a high-pressure air source can be connected to the demolding hole through a pipeline to separate the casting product from the cavity mold, making demolding relatively convenient.

[0044] In this embodiment, a lifting ring 8 is provided on the upper end face of the die 9, and there are multiple lifting rings 8 to facilitate lifting the die 9. A die support column 7 is also provided on the upper end face of the die 9, and there are multiple die support columns 7. When maintaining and repairing the inner side of the die 9, the inner side of the die 9 faces upward, and the die support column 7 is used to support the die 9.

[0045] like Figure 3 As shown, a positioning groove is provided at the center of the upper side of the punch 10, and a positioning plate 2 is provided in the positioning groove. The positioning plate 2 constitutes the punch insert adapter. In this embodiment, the punch insert adapter is a flush adapter. The positioning plate 2 is fixed in the positioning groove with screws to facilitate processing and replacement after wear. The thickness of the positioning plate 2 is equal to the groove depth of the positioning groove.

[0046] In this embodiment, a punch positioning hole is provided at the center of the punch 10, extending through the centerline of the punch 10. A positioning plate positioning hole is provided on the positioning plate 2, and the punch positioning hole and the positioning plate positioning hole are correspondingly connected to allow the punch positioning screw 16 to pass through. The punch positioning hole and the positioning plate positioning hole together constitute the adapter positioning hole. The punch positioning screw 16 constitutes an insert positioning rod with external threads at both ends, forming an insert positioning component. The upper end of the punch positioning screw 16 is used for threaded connection with the threaded hole on the side of the basin insert 3 facing the positioning sleeve 6. The punch positioning screw constitutes a punch threaded positioning rod, and the upper end of the punch positioning screw 16 is the inner end of the punch positioning screw 16.

[0047] A positioning cylinder 17 is sleeved on the punch positioning screw 16. The upper end of the positioning cylinder 17 is provided with a flange. The positioning cylinder 17 is fixed on the punch 10 by the flange and screws. The positioning cylinder 17 can ensure the stability of the punch positioning screw 16.

[0048] In this embodiment, a support plate 14 is provided on the lower end face of the punch 10. The support plate 14 has a through hole, through which the positioning cylinder 17 passes to be supported by the support plate. The support plate not only supports the punch positioning screw 16, but also blocks the pouring liquid, preventing it from entering the cavity of the punch 10. The lower end of the punch positioning screw 16 is provided with a pre-tightening nut 15. During the tightening process, the pre-tightening nut 15 presses against the positioning cylinder 17 to fix the basin insert to the punch 10, thereby pre-fixing the die 9 and the punch 10 before the bolt 19 fixes them.

[0049] In this embodiment, a punch support column 13 is also provided on the lower end face of the punch 10. There are multiple punch support columns 13, which are used to support the punch 10.

[0050] like Figure 2 and Figure 3 As shown, after the die 9 and the punch 10 are closed, a mold support frame 1 is provided on the side of the casting mold facing away from the sprue 11. The mold support frame 1 is used to support the casting mold after the casting mold is erected, so as to ensure that the casting mold is placed stably.

[0051] During assembly, the die 9 is first lifted using a hoisting device. Then, the basin insert 3 is fixed inside the positioning sleeve 6 using die positioning screws 4, placing the basin insert 3 at the center of the die 9. Next, the die 9 is moved above the punch 10 and lowered to support it. The punch positioning screw 16 is then inserted into the positioning cylinder 17, and its upper end is screwed into the threaded hole on the lower side of the basin insert 3. The pre-tightening nut 15 is then tightened to pre-fix the die 9 and punch 10, positioning the basin insert 3 at the center of the punch 10 and ensuring the cavity dimensions formed by the die 9 and punch 10 are met. Finally, the die 9 and punch 10 are fixed together using bolts 19, and a mold support frame 1 is placed on the side of the casting mold facing away from the sprue 11.

[0052] During casting, the casting mold is lifted and changed from a horizontal to a vertical position, with the sprue 11 facing upwards. The cover 12 is opened, and the casting liquid is poured into the cavity 18 through the sprue 11. After casting, it hardens at the required temperature and time. After hardening, the casting mold is changed from a vertical to a horizontal position, and then the bolt 19 is removed. The casting mold is then lifted with a crane, the preload nut 15 is loosened, and the punch positioning screw 16 is removed from the punch 10. Then, a jack is used at the two demolding grooves 18 to slowly separate the die 9 and the punch 10. After separation, the insulating basin is positioned on the die 9. The die positioning screw 4 is then tightened. After all the die positioning screws 4 are tightened, the insulating basin can be detached from the die 9. Even if the insulating basin cannot be detached from the die 9, the basin insert 3 can be pushed through the demolding hole by the output end of the jack to detach the insulating basin from the die 9. The casting and molding of the insulating basin is completed.

[0053] Example 2 of the insulating basin casting mold of the present invention:

[0054] The difference from Embodiment 1 is that there are two positioning holes for the adapter part, which are located around the center of the punch. In this case, two punch positioning screws are required to cooperate with the corresponding positioning holes of the adapter part to position the basin insert at the center of the punch.

[0055] Example 3 of the insulating basin casting mold of the present invention:

[0056] The difference from Embodiment 1 is that the punch does not have a groove and a positioning plate. In this case, the top of the concave surface of the punch is adapted to the side end face of the punch of the basin insert. In order to ensure casting accuracy, the flatness of the top of the concave surface of the punch is better.

[0057] Example 4 of the insulating basin casting mold of the present invention:

[0058] The difference from Embodiment 1 is that no support plate is provided. In this case, the lengths of the punch positioning screw and the positioning cylinder are both relatively short, and no support plate is needed to ensure stability. In other embodiments, the support plate, positioning cylinder, and preload nut may be omitted. In this case, the insert positioning rod can be an insert positioning bolt or an insert positioning pin. Provided that its own strength is sufficient, the insert positioning rod can also be an insert positioning screw.

[0059] Embodiment 5 of the insulating basin casting mold of the present invention:

[0060] The difference from Embodiment 1 is that no positioning plate positioning hole is provided on the positioning plate, nor is a punch positioning hole provided on the punch. Instead, a positioning protrusion is provided on the positioning plate, and the corresponding basin insert is provided with a positioning hole that cooperates with the positioning protrusion.

[0061] Example 6 of the insulating basin casting mold of the present invention:

[0062] The difference from Example 1 is that the positioning sleeve on the die is not flush with the cavity wall of the die, that is, the positioning sleeve on the die is recessed into the cavity wall of the die. In this case, the casting mold is suitable for insulating basins where the outer end of the basin insert protrudes from the adjacent insulator and the inner end is flush with the adjacent insulator.

[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. An insulating basin casting mold, comprising a concave mold and a convex mold, wherein the bottom of the concave surface of the concave mold has a concave mold insert fitting portion for fitting with the concave mold side end face of a basin insert, and the top of the convex surface of the convex mold has a convex mold insert fitting portion for fitting with the convex mold side end face of a basin insert; characterized in that, Both the die insert adapter and the punch insert adapter are flush adapters, with their edges flush with the cavity walls of the corresponding die and punch. The die insert adapter is formed by a positioning sleeve detachably connected to the die. The positioning sleeve is located at the center of the die and is fixed to the die by screws. A screw pad is provided above the positioning sleeve. The positioning sleeve and the screw pad are fixed together by die positioning screws. During assembly, the basin insert is fixed inside the positioning sleeve and at the center of the die by the die positioning screws. The punch insert adapter is formed by a positioning plate detachably connected to the punch. A positioning rod is mounted on the positioning plate. Both ends of the positioning rod are provided with external threads. The external thread at the inward end of the positioning rod is used to position and cooperate with the adapter positioning hole on the end face of the basin insert. The outward end of the positioning rod extends out of the punch and is fitted with a positioning cylinder on its outer side. The end of the positioning cylinder near the punch insert adapter is fixed to the punch. The external thread at the outward end of the positioning rod is connected to a preload nut. During the tightening process, the preload nut presses against the positioning cylinder to fix the basin insert on the punch.

2. The insulated basin casting mold according to claim 1, characterized in that, A support plate is fixed on the end face of the punch facing away from the die, and the end of the positioning cylinder away from the punch insert adapter passes through the support plate.

3. The insulated basin casting mold according to claim 1, characterized in that, The positioning cylinder has a flange at one end near the punch insert adapter, and the positioning cylinder is fixed to the punch by the flange.

4. The casting mold for the insulating basin according to any one of claims 1-3, characterized in that, The positioning rod passes through the hole in the punch and is positioned at the center of the punch.

5. The insulated basin casting mold according to any one of claims 1-3, wherein a positioning groove is provided at the center of the upper side of the punch, and the positioning plate is disposed in the positioning groove.

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