Vacuum pouring mutual inductor mold structure

Abstract

The utility model discloses a vacuum pouring mutual inductor mold structure which can be used for demolding without overturning and knocking, and is convenient and fast. The vacuum pouring mutual inductor mold structure comprises a bottom mold, a front panel, a rear panel, a side panel, an upper cover plate, a movable positioning pin, a nut and an operating part, the front panel, the rear panel, the side panels and the upper cover plate are mounted on the bottom die according to a preset direction so as to form a pouring cavity with a channel; the front panel, the rear panel and the bottom die are positioned and fixed in the vertical direction through a plurality of movable positioning pins; front positioning blocks are arranged on the two sides of the front panel; rear positioning blocks are arranged on the two sides of the rear panel, and clamping grooves are formed in the faces, facing the front positioning blocks, of the rear positioning blocks; the nut is matched in the clamping groove in a non-rotating mode. One end of the operating piece is arranged to penetrate through the rear positioning block and the nut and abut against a lead screw of the front positioning block, and the other end of the operating piece is arranged to be a handle which is convenient to operate so as to rotate the lead screw.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of mutual inductor, especially point to a kind of vacuum casting mutual inductor mould structure. BACKGROUND

[0002] The function of mutual inductor is to measure current or voltage, and convert high voltage or large current of primary side into low voltage or small current which can be safely measured. Fuse is a kind of overcurrent protection device, when current in circuit exceeds predetermined value, fuse in fuse will melt due to high temperature, thereby cutting off circuit, to prevent electrical equipment or line from being damaged due to overload or short circuit. Combined together, mutual inductor fuse refers to adding fuse in mutual inductor to provide double protection, to ensure safe operation of power system.

[0003] Mutual inductor with fuse, its appearance is usually special-shaped, cannot be directly demoulded after vacuum casting. The existing method is to turn over the mould by 180°, there is certain security risk, and operation is complex, need to knock the mould with hammer to make it demould, easy to cause damage to the mould. CONTENT OF UTILITY MODEL

[0004] The main purpose of the utility model is to provide a kind of vacuum casting mutual inductor mould structure, solve the problems in prior art, without turning over, knock to demould, convenient and fast.

[0005] In order to achieve the above purpose, the solution of the utility model is as follows:

[0006] A kind of vacuum casting mutual inductor mould structure, including bottom die, front panel, rear panel, side panel, upper cover plate, movable positioning pin, nut and operating part;The front panel, rear panel, side panel and upper cover plate are installed on the bottom die according to preset direction to form pouring cavity with channel;The front panel, rear panel and the bottom die are all positioned and fixed in up-down direction by several movable positioning pins;The two sides of the front panel are provided with front positioning block;The two sides of the rear panel are provided with rear positioning block, and the side of the rear positioning block facing the front positioning block is provided with clamping groove;The nut is not rotatably matched in the clamping groove;One end of the operating part is provided as screw rod that is threaded in the rear positioning block, nut and abuts the front positioning block, and the other end is provided as handle that is convenient to operate to rotate the screw rod.

[0007] The two sides of the bottom die are provided with several support rods, for supporting side panel in left-right direction.

[0008] Preferably, the upper surface of the support rod is provided with positioning flange extending along the axis direction of itself, and the lower surface of the side panel is provided with positioning notch for embedding the positioning flange.

[0009] The vacuum casting mutual inductor mold structure further comprises a mold core embedded in the channel.

[0010] The periphery of the front panel and the rear panel is respectively provided with a front frame and a rear frame; the front frame and the rear frame are locked by a bolt-nut set with the adjacent edges of the side panel and the upper cover plate.

[0011] Preferably, the periphery of the front panel, the rear panel, the side panel and the upper cover plate is respectively provided with a notch for matching the bolt-nut set.

[0012] The side and the upper surface of the front panel and the rear panel are respectively provided with a front positioning column and a rear positioning column, and the side panel and the upper cover plate are provided with a positioning hole for embedding each positioning column.

[0013] The front positioning block is provided with a circular groove on the side facing the rear positioning block for embedding the end of the screw rod.

[0014] The rear positioning block is provided with a sliding hole for the screw rod to pass through on the side opposite to the clamping groove.

[0015] After the above technical scheme is adopted, the utility model has the following technical effects:

[0016] In the demolding process, the movable positioning pin between the rear panel and the bottom mold is removed first, and then the screw rod of the operating member passes through the rear positioning block, the nut and abuts on the front positioning block in sequence. Since the nut is limited to rotate in the clamping groove, the operator drives the screw rod to rotate by the handle, and then drives the nut to move axially on the screw rod. Since the end of the screw rod abuts on the front positioning block and the movable positioning pin between the front panel and the bottom mold is not removed, the rear panel will be displaced relative to the front panel under the action of force. Finally, the rear panel can be removed by screwing the handle, and knocking the rear panel is no longer needed, and subsequent demolding can be quickly performed. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model discloses a three-dimensional view of a specific embodiment Figure 1 .

[0018] Figure 2 The utility model discloses a three-dimensional view of a specific embodiment Figure 2 .

[0019] Figure 3 It is an exploded view of a specific embodiment of the utility model.

[0020] Figure 4 It is a sectional view of a specific embodiment of the utility model.

[0021] REFERENCE SIGNS:

[0022] 1 - base mold; 11 - support rod; 12 - positioning flange;

[0023] 2 - front panel; 21 - front positioning block; 22 - front frame; 23 - front positioning column; 24 - circular sink;

[0024] 3 - rear panel; 31 - rear positioning block; 32 - clamping groove; 33 - rear frame; 34 - rear positioning column; 35 - sliding opening;

[0025] 4 - side panel; 41 - positioning notch;

[0026] 5 - upper cover plate;

[0027] 6, 6' - movable positioning pin;

[0028] 7 - nut;

[0029] 8 - operating member; 81 - screw rod; 82 - handle;

[0030] 9 - mold core;

[0031] a - channel; b - pouring cavity. DETAILED DESCRIPTION

[0032] In order to further explain the technical scheme of the utility model, the utility model will be described in detail below through specific embodiments.

[0033] Reference Figures 1-4 As shown in the figure, the utility model discloses a kind of vacuum pouring mutual inductor mold structures, including base mold 1, front panel 2, rear panel 3, side panel 4, upper cover plate 5, movable positioning pin 6, nut 7 and operating member 8;

[0034] Front panel 2, rear panel 3, side panel 4 and upper cover plate 5 are installed on base mold 1 according to preset direction to form pouring cavity b with channel a;Front panel 2, rear panel 3 and base mold 1 are all positioned and fixed in up-down direction by several movable positioning pins 6, 6';

[0035] Both sides of front panel 2 are provided with front positioning block 21;

[0036] Both sides of rear panel 3 are provided with rear positioning block 31, and the side of rear positioning block 31 facing front positioning block 21 is provided with clamping groove 32;

[0037] Nut 7 is non-rotatably matched in clamping groove 32;

[0038] One end of operating member 8 is provided as screw rod 81 threaded in rear positioning block 31, nut 7 and abutting front positioning block 21, and the other end is provided as handle 82 for facilitating operation to rotate screw rod 81.

[0039] Through the above scheme, in the process of demolding, the movable positioning pin 6' between the rear panel 3 and the bottom mold 1 is first removed, then the screw rod 81 of the operating part 8 is sequentially threaded through the rear positioning block 31, the nut 7 and abuts on the front positioning block 21, since the nut 7 is limited to rotate in the clamping groove 32, the operator drives the screw rod 81 to rotate through the handle 82, and then drives the nut 7 to move axially on the screw rod 81; since the end of the screw rod 81 abuts on the front positioning block 21 and the movable positioning pin 6 between the rear panel 3 and the bottom mold 1 is not removed, displacement of the rear panel 3 relative to the front panel 2 is caused under the action of force, and finally the rear panel 3 can be removed by screwing the handle 82, and knocking the rear panel 3 is no longer needed, and subsequent demolding can be quickly performed.

[0040] The specific embodiments of the utility model are shown below.

[0041] The bottom mold 1 is provided with a plurality of supporting rods 11 on both sides, which are used for supporting the side panels 4 in the left-right direction.

[0042] Further, the upper surface of the supporting rod 11 is provided with a positioning flange 12 extending along the axis direction thereof, and the lower surface of the side panel 4 is provided with a positioning notch 41 for embedding the positioning flange 12. In this way, the side panel 4 cannot be displaced in the front-rear direction.

[0043] The utility model also comprises a mold core 9 embedded in the channel a.

[0044] The peripheries of the front panel 2 and the rear panel 3 are respectively provided with a front frame 22 and a rear frame 33; the adjacent edges of the front frame 22, the rear frame 33, the side panel 4 and the upper cover plate 5 are locked by a bolt-nut set.

[0045] Further, the peripheries of the front panel 2, the rear panel 3, the side panel 4 and the upper cover plate 5 are respectively provided with notches for cooperating with the bolt-nut set.

[0046] The side surface and the upper surface of the front panel 2 and the rear panel 3 are respectively provided with a front positioning column 23 and a rear positioning column 34, and the corresponding positions of the side panel 4 and the upper cover plate 5 are provided with positioning holes for embedding the positioning columns.

[0047] The front positioning block 21 is provided with a circular depression 24 on the side facing the rear positioning block 31, which is used for embedding the end of the screw rod 81 and can position the end of the screw rod 81.

[0048] The rear positioning block 31 is provided with a sliding opening 35 for threading the screw rod 81 on the side opposite to the clamping groove 32. In this way, the nut 7 can be first sleeved on the screw rod 81 and then cooperated with the screw rod 81 on the rear positioning block 31, and the operation is more convenient.

[0049] The above embodiments and drawings are not limited to the product shape and style of the present application, and any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the scope of the present application.

Claims

1. A vacuum casting transformer mould structure, characterized in that: it comprises a bottom mould, a front panel, a back panel, side panels, an upper cover plate, movable positioning pins, nuts and operating members; the front panel, the back panel, the side panels and the upper cover plate are installed on the bottom mould in a preset direction to form a casting chamber with a channel; the front panel, the back panel and the bottom mould are fixed in the up-down direction by the movable positioning pins; both sides of the front panel are provided with front positioning blocks; both sides of the back panel are provided with back positioning blocks, and one side of the back positioning blocks facing the front positioning blocks is provided with a clamping groove; the nuts are non-rotatably matched in the clamping groove; one end of the operating member is provided with a screw rod penetrating through the back positioning block, the nut and abutting against the front positioning block, and the other end of the operating member is provided with a handle for conveniently operating to rotate the screw rod.

2. The vacuum casting transformer mould structure according to claim 1, characterized in that: both sides of the bottom mould are provided with a plurality of support rods for supporting the side panels in the left-right direction.

3. The vacuum casting transformer mould structure according to claim 2, characterized in that: the upper surface of the support rod is provided with a positioning flange extending along the axis direction of the support rod, and the lower surface of the side panel is provided with a positioning notch for embedding the positioning flange.

4. The vacuum casting transformer mould structure according to claim 1, characterized in that: it further comprises a mould core embedded in the channel.

5. The vacuum casting transformer mould structure according to claim 1, characterized in that: the periphery of the front panel and the back panel is respectively provided with a front frame and a back frame; and the front frame and the back frame are locked by a bolt and nut set with the adjacent edges of the side panels and the upper cover plate.

6. The vacuum casting transformer mould structure according to claim 5, characterized in that: the periphery of the front panel, the back panel, the side panels and the upper cover plate is respectively provided with a notch for matching the bolt and nut set.

7. The vacuum casting transformer mould structure according to claim 1, characterized in that: the side surface and the upper surface of the front panel and the back panel are respectively provided with a front positioning column and a back positioning column, and the corresponding positions of the side panels and the upper cover plate are provided with positioning holes for embedding the positioning columns.

8. The vacuum casting transformer mould structure according to claim 1, characterized in that: the front positioning block is provided with a circular depression on the side facing the back positioning block for embedding the end of the screw rod.

9. The vacuum casting transformer mould structure according to claim 1, characterized in that: the back positioning block is provided with a sliding hole for the screw rod to pass through at the position opposite to the clamping groove and away from the front positioning block. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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