Resin pouring mold with high universality

Abstract

A resin pouring mold with high universality comprises a bottom plate, a soft cushion, an inner mold, an outer mold, a first pressing assembly, a second pressing assembly, an adjusting assembly, a wiring board and an overflow plate. The soft cushion is installed on the top face of the bottom plate, the inner mold and the outer mold are installed on the top face of the soft cushion, the inner mold is located in the outer mold, the outer wall of the inner mold and the inner wall of the outer mold are polished faces, the overflow plate is detachably installed on the outer mold, and the overflow plate is provided with an overflow opening. The utility model provides the resin pouring mold with high universality according to the content, and solves the problems that when a traditional pouring mold in the prior art is used for pouring, the regional space between a coil inner mold and a coil outer mold is filled with epoxy resin, on one hand, the pouring liquid level cannot be effectively controlled, so that the heights of poured coils are inconsistent, and the pouring quality is poor. Coils with different heights cannot be manufactured according to production requirements, so that the universality is low; and on the other hand, the surface of the cast coil is not smooth and needs to be cut and polished.

Description

Technical Field

[0001] The utility model relates to the technical field of power transformation equipment, in particular to a resin casting mold with high versatility. Background Art

[0002] The coil is one of the most important electromagnetic circuit structural components of the dry-type transformer, and it plays a vital role in the operational reliability of the dry-type transformer.

[0003] When pouring, traditional casting molds fill the area between the coil inner membrane and the coil outer mold with epoxy resin. On the one hand, the pouring liquid level cannot be effectively controlled, resulting in inconsistent coil heights after pouring, and coils of different heights cannot be manufactured according to production needs, and the versatility is low; on the other hand, the surface of the cast coil is not smooth and needs to be cut and polished. Cutting and polishing easily create dust, which is harmful to the health of the operator; cutting and polishing easily cause fine cracks inside the dry-type transformer coil. After long-term operation, due to thermal effects or electrochemical effects, the internal cracks can easily spread to the coil surface and cause cracks, causing insulation failure, and then causing the risk of burning. Utility Model Content

[0004] The purpose of the utility model is to provide a resin casting mold with high versatility, which solves the problem that in the conventional casting mold in the prior art, the space between the coil inner film and the coil outer mold is filled with epoxy resin during casting. On the one hand, the casting liquid level cannot be effectively controlled, resulting in inconsistent coil heights after casting, and coils of different heights cannot be manufactured according to production requirements, resulting in low versatility; on the other hand, the surface of the cast coil is not smooth and needs to be cut and polished.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A highly versatile resin casting mold, comprising a base plate, a cushion, an inner mold, an outer mold, a first pressing assembly, a second pressing assembly, an adjustment assembly, a terminal block, and an overflow plate;

[0007] The soft pad is mounted on the top surface of the bottom plate, the inner mold and the outer mold are respectively mounted on the top surface of the soft pad, the inner mold is located inside the outer mold, the outer wall of the inner mold and the inner wall of the outer mold are respectively polished surfaces, and the overflow plate is detachably mounted on the outer mold, and the overflow plate is provided with an overflow port;

[0008] The second clamping assembly is used to press and fix the outer mold to the base plate, the first clamping assembly is used to press and fix the inner mold to the base plate, and the first clamping assembly is used to press and fix the overflow plate to the outer mold, the adjustment assembly is installed on the base plate, and the adjustment assembly is used to adjust the balance of the base plate.

[0009] Furthermore, the outer mold is respectively provided with an overflow area, a guide groove and a groove, the overflow area is used to install the overflow plate, the guide grooves are respectively located at the front and rear ends of the overflow area, and the groove is located at the bottom of the overflow area;

[0010] Guide strips are respectively provided on the front and rear sides of the overflow plate, and an insertion strip is provided on the bottom of the overflow plate. The guide strips are slidably installed in the guide grooves, and the insertion strips are inserted in the grooves.

[0011] Specifically, the first pressing assembly includes a first nut, a second nut, a first screw, a first pressing block, a second pressing block, a third pressing block and a mounting plate;

[0012] The first nut is mounted on one end of the first screw rod, the first nut abuts against the bottom plate, and the other end of the first screw rod passes through the bottom plate, the cushion, and the inner mold in sequence, and protrudes from the top surface of the inner mold;

[0013] The mounting plate is mounted on the other end of the first screw, and the second pressing block and the third pressing block are mounted on the left and right ends of the mounting plate respectively, the second pressing block abuts against the overflow plate, and the third pressing block abuts against the outer mold;

[0014] The first pressing block is installed on the bottom surface of the mounting plate, and the first pressing block is against the top surface of the inner mold. The second nut is installed on the other end of the first screw, and the second nut is attached to the top surface of the mounting plate.

[0015] Preferably, the first pressing assembly further includes a first adjusting screw and a second adjusting screw;

[0016] The first adjusting screw and the second adjusting screw are rotatably mounted on the left and right ends of the mounting plate, respectively, and the first adjusting screw and the second adjusting screw are movable up and down on the left and right ends of the mounting plate, respectively, the second clamping block is mounted on the bottom of the first adjusting screw, and the third clamping block is mounted on the bottom of the second adjusting screw.

[0017] In some embodiments, the second pressing assembly includes a second screw, a third nut, and a fourth nut;

[0018] A fixing column is provided on the outer periphery of the outer mold, the third nut is installed on one end of the second screw rod, the third nut is against the base plate, the other end of the second screw rod passes through the base plate, the soft pad and the fixing column in sequence, and protrudes from the top surface of the fixing column, the fourth nut is installed on the other end of the second screw rod, and the fourth nut is fitted against the fixing column.

[0019] Further, the adjustment includes a third adjusting screw and a fixing nut;

[0020] The fixing nuts are fixedly mounted on the bottom surfaces of the four end corners of the base plate respectively, and the end of the third adjusting screw passes through the soft pad and the base plate in sequence and is mounted on the fixing nuts.

[0021] Specifically, four support blocks are provided on the bottom surface of the base plate, and each support block is located between two adjacent fixing nuts.

[0022] Preferably, the terminal block is detachably mounted on the front end of the outer mold.

[0023] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0024] 1. A methyl silicone rubber cushion is arranged between the mold and the bottom plate through the bottom plate, cushion, inner mold, outer mold, first clamping assembly, second clamping assembly, terminal board, overflow plate and overflow port to improve the sealing of the resin casting mold and prevent resin leakage. In addition, an overflow port of corresponding height can be selected according to the resin casting height so that excess resin can flow out from the overflow port to achieve the desired coil height, with good product consistency and applicable to the production of coils with different casting heights, thereby improving the versatility of the resin casting mold.

[0025] 2. The outer wall of the inner mold and the inner wall of the outer mold are both polished surfaces. After the coil is cast, the surface is smooth and no cutting or polishing is required. There is no dust pollution. In addition, the balance of the bottom plate can be adjusted by adjusting the components to control the flatness of the resin liquid surface and improve production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural schematic diagram of a resin casting mold in one embodiment of the present invention;

[0027] Figure 2 This is a schematic structural diagram of the overflow area of ​​one embodiment of the present utility model;

[0028] Figure 3 This is a schematic structural diagram of an overflow plate in one embodiment of the present invention;

[0029] Figure 4 This is a structural diagram of a fixing nut in one embodiment of the present utility model;

[0030] Among them: base plate 1, support block 11, cushion 2, inner mold 3, outer mold 4, overflow area 41, guide groove 42, groove 43, fixing column 44, first clamping assembly 5, first nut 51, second nut 52, first screw 53, first clamping block 54, second clamping block 55, third clamping block 56, mounting plate 57, first adjusting screw 58, second adjusting screw 59, second clamping assembly 6, second screw 61, third nut 63, fourth nut 64, adjusting assembly 7, third adjusting screw 71, fixing nut 72, terminal block 8, overflow plate 9, overflow port 91, guide bar 92, plug-in bar 93. DETAILED DESCRIPTION

[0031] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", "inner end", "outer end", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more such features, and are used to distinguish and describe features, without distinction of order or importance. In the description of the present invention, unless otherwise specified, "multiple" means more than two.

[0033] In one embodiment of the present invention, Figure 1-4As shown, a highly versatile resin casting mold includes a base plate 1, a soft pad 2, an inner mold 3, an outer mold 4, a first clamping assembly 5, a second clamping assembly 6, an adjustment assembly 7, a terminal block 8 and an overflow plate 9; the soft pad 2 is installed on the top surface of the base plate 1, the inner mold 3 and the outer mold 4 are respectively installed on the top surface of the soft pad 2, the inner mold 3 is located inside the outer mold 4, the outer wall of the inner mold 3 and the inner wall of the outer mold 4 are respectively polished surfaces, the overflow plate 9 is detachably installed on the outer mold 4, and the overflow plate 9 is provided with an overflow port 91; the second clamping assembly 6 is used to press and fix the outer mold 4 to the base plate 1, the first clamping assembly 5 is used to press and fix the inner mold 3 to the base plate 1, and the first clamping assembly 5 is used to press and fix the overflow plate 9 to the outer mold 4, the adjustment assembly 7 is installed on the base plate 1, and the adjustment assembly 7 is used to adjust the balance of the base plate 1.In this embodiment, the material of the cushion 2 is methyl silicone rubber. The cushion 2 is used to seal between the bottom plate 1 and the mold to prevent resin leakage. When in use, the cushion 2 is first installed on the top surface of the bottom plate 1, and then the inner mold 3 and the outer mold 4 are placed on the top surface of the cushion 2. The inner mold 3 is located inside the outer mold 4. The outer periphery of the inner mold 3 is wound with a winding, such as an enameled wire or an insulated wire. The outer wall of the inner mold 3 and the inner wall of the outer mold 4 are both polished surfaces to ensure smoothness. The terminal block 8 is installed Installed on the front end of the outer mold 4, and then select the corresponding model of overflow plate 9 according to the height of the pouring liquid level. Different models of overflow plates 9 have different heights of overflow ports 91. After selecting the corresponding model of overflow plate 9, install the overflow plate 9 on the outer mold 4, and use the first clamping component 5 to clamp and fix the inner mold 3 and the overflow plate 9, and use the second clamping component 6 to clamp and fix the outer mold 4, and then pour the resin for pouring. During the pouring process, the height of the pouring liquid level can be observed from the overflow port 91 to avoid wasting excess material. The balance of the bottom plate 1 is adjusted by adjusting the component 7 to adjust the flatness of the resin liquid surface. The excess resin will flow out from the overflow port 91 of the overflow plate 9, thereby controlling the pouring height. After the pouring is completed, the mold is solidified and demoulded. The present application arranges a methyl silicone rubber cushion between the mold and the bottom plate 1 through the bottom plate 1, the cushion 2, the inner mold 3, the outer mold 4, the first pressing component 5, the second pressing component 6, the terminal board 8, the overflow plate 9 and the overflow port 91 to improve the sealing of the resin casting mold, prevent the resin from leaking, and can adjust the height of the resin casting mold according to the resin casting height. The overflow port 91 of the corresponding height is selected so that excess resin can flow out from the overflow port 91 to achieve the desired coil height, with good product consistency and suitable for producing coils of different casting heights, thereby improving the versatility of the resin casting mold. Furthermore, the outer wall of the inner mold 3 and the inner wall of the outer mold 4 are polished surfaces. After the coil is cast, its surface is smooth and no cutting or polishing is required, and there is no dust pollution. In addition, the balance of the bottom plate 1 can be adjusted through the adjustment component 7 to control the flatness of the resin liquid level, thereby improving production quality.

[0034] like Figure 1-3As shown, the outer mold 4 is provided with an overflow area 41, a guide groove 42 and a groove 43. The overflow area 41 is used to install the overflow plate 9. The guide groove 41 is respectively located at the front and rear ends of the overflow area 41, and the groove 43 is located at the bottom of the overflow area 41; the front and rear sides of the overflow plate 9 are respectively provided with guide strips 92, and the bottom of the overflow plate 9 is provided with an insert strip 93. The guide strip 92 is slidably installed in the guide groove 42, and the insert strip 93 is inserted in the groove 43. In this embodiment, when the overflow plate 9 is installed on the outer mold 4, the two guide bars 92 on the front and rear sides of the overflow plate 9 are slid from top to bottom and installed in the guide groove 42 until the insertion bar 93 at the bottom of the overflow plate 9 is inserted into the groove 43. The installation is convenient and quick, and the disassembly can be done by pulling it out in the opposite direction, which is beneficial to improving the disassembly efficiency of the overflow plate 9. The guide groove 42 plays a guiding role to ensure that the overflow plate 9 can be accurately disassembled and assembled, and the provision of the groove 43 and the insertion bar 93 can play a certain sealing role to prevent the resin from directly leaking to the outside.

[0035] like Figure 1-4As shown, the first clamping assembly 5 includes a first nut 51, a second nut 52, a first screw 53, a first clamping block 54, a second clamping block 55, a third clamping block 56 and a mounting plate 57; the first nut 51 is installed at one end of the first screw 53, and the first nut 51 is against the base plate 1, and the other end of the first screw 53 passes through the base plate 1, the cushion 2 and the inner mold 3 in sequence, and protrudes from the top surface of the inner mold 3; the mounting plate 57 is installed at the other end of the first screw 53, and the left and right ends of the mounting plate 57 are respectively installed with the second clamping block 55 and the third clamping block 56, the second clamping block 55 is against the overflow plate 9, and the third clamping block 55 is against the outer mold 4; the first clamping block 54 is installed on the bottom surface of the mounting plate 57, and the first clamping block 54 is against the top surface of the inner mold 3, the second nut 52 is installed at the other end of the first screw 53, and the second nut 52 is attached to the top surface of the mounting plate 57. In this embodiment, the bottom plate 1, the cushion 2 and the inner mold 3 are respectively provided with through holes, the bottom surface of the middle part of the mounting plate 57 is installed with the first pressing block 54, the left end of the mounting plate 57 is installed with the second pressing block 55, and the right end of the mounting plate 57 is installed with the third pressing block 56. When in use, the first nut 51 is installed on the bottom of the first screw 53, the top surface of the first nut 51 is against the bottom surface of the bottom plate 1, the top of the first screw 53 passes through the bottom plate 1, the cushion 2 and the inner mold 3 in sequence, and protrudes from the top surface of the inner mold 3, and then the mounting plate 57 is installed on the top of the first screw 53 so that it protrudes from the top surface of the inner mold 3. The top of the first screw 53 passes through the first clamping block 54 and the mounting plate 57 in sequence, and the top of the first screw 53 protrudes from the top surface of the mounting plate 57, and then the second nut 52 is installed on the top of the first screw 53 until the bottom surface of the second nut 52 is in contact with the top surface of the mounting plate 57, so that the first clamping block 54 presses the top surface of the inner mold 3, thereby pressing and fixing the inner mold 3 to the bottom plate 1, and the second clamping block 55 presses the top surface of the overflow plate 9 to fix it, and the third clamping block 56 presses the top surface of the right wall of the outer mold 4, thereby ensuring the installation stability of the inner mold 3, overflow plate 9 and outer mold 4.

[0036] like Figure 1-3As shown, the first clamping assembly 5 also includes a first adjusting screw 58 and a second adjusting screw 59; the first adjusting screw 58 and the second adjusting screw 59 are rotatably mounted on the left and right ends of the mounting plate 57, respectively, and the first adjusting screw 58 and the second adjusting screw 59 are respectively mounted on the left and right ends of the mounting plate 57 so as to be movable up and down. The second clamping block 55 is mounted on the bottom of the first adjusting screw 58, and the third clamping block 56 is mounted on the bottom of the second adjusting screw 59. In this embodiment, threaded holes are respectively provided on the left and right ends of the mounting plate 57. The first adjusting screw 58 and the second adjusting screw 59 are respectively moved up and down by rotating themselves, thereby adjusting the height positions of the second clamping block 55 and the third clamping block 56, respectively, to facilitate adjustment of the degree of clamping during use.

[0037] like Figure 2 and Figure 4 As shown, the second clamping assembly 6 includes a second screw 61, a third nut 63 and a fourth nut 64; a fixing column 44 is provided on the outer periphery of the outer mold 4, the third nut 63 is installed on one end of the second screw 61, the third nut 63 is against the base plate 1, and the other end of the second screw 61 passes through the base plate 1, the cushion 2 and the fixing column 44 in sequence, and protrudes from the top surface of the fixing column 44, the fourth nut 64 is installed on the other end of the second screw 61, and the fourth nut 64 is attached to the fixing column 44. In this embodiment, four fixing columns 44 are provided on the outer periphery of the outer mold 4, and the four fixing columns 44 are respectively located at the four ends of the outer mold 4. The number of the second screw 61, the third nut 63 and the fourth nut 64 are four respectively. During installation, the third nut 63 is installed on the bottom of the second screw 61 so that the top surface of the third nut 63 is against the bottom surface of the base plate 1. The top of the second screw 61 passes through the base plate 1, the cushion 2 and the fixing column 44 in sequence, and protrudes from the top surface of the fixing column 44. Then, the fourth nut 64 is installed on the top of the second screw 61, and by twisting the fourth nut 64, the bottom surface of the fourth nut 64 is fitted against the top surface of the fixing column 44, thereby pressing and fixing the outer mold 4 to the base plate 1. It is convenient and fast, and the pressing is firm.

[0038] like Figure 2 and Figure 4As shown, the adjustment 7 includes a third adjustment screw 71 and a fixing nut 72; the fixing nuts 72 are fixedly installed on the bottom surface of the four end corners of the base plate 1. The ends of the third adjustment screws 71 pass through the soft pad 2 and the base plate 1 in sequence and are installed on the fixing nuts 72. In this embodiment, there are four third adjustment screws 71 and four fixing nuts 72, each of which is fixedly installed on the bottom surface of the four end corners of the base plate 1. The ends of the third adjustment screws 71 pass through the soft pad 2 and the base plate 1 in sequence from top to bottom and are installed on the fixing nuts 72. The bottom of the third adjustment screw 71 is against the ground. When adjustment is required, the third adjustment screw 71 is moved up and down by rotating it, and the balance of the base plate 1 is adjusted by combining the four sets of third adjustment screws 71 and fixing nuts 72.

[0039] like Figure 4 As shown, four support blocks 11 are provided on the bottom surface of the base plate 1, and each support block 11 is located between two adjacent fixing nuts 72. In this embodiment, the four support blocks 11 are provided on the bottom surface of the base plate 1. The four support blocks 11 are conducive to improving the placement stability of the base plate 1 and preventing it from tilting when adjusting the balance of the base plate 1. Furthermore, each support block 11 is located between two adjacent fixing nuts 72, and the staggered arrangement structure is conducive to improving space utilization.

[0040] like Figure 1-2 As shown, the terminal block 8 is detachably mounted on the front end of the outer mold 4. In this embodiment, the terminal block 8 is detachably mounted on the front end of the outer mold 4 using a locking screw and a locking nut. The detachable structure of the terminal block 8 facilitates replacement of different terminal blocks 8, which has a wider range of usage scenarios.

[0041] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0042] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A highly versatile resin casting mold, characterized by: It includes a bottom plate, a cushion, an inner mold, an outer mold, a first pressing assembly, a second pressing assembly, an adjustment assembly, a terminal board and an overflow plate; The soft pad is mounted on the top surface of the bottom plate, the inner mold and the outer mold are respectively mounted on the top surface of the soft pad, the inner mold is located inside the outer mold, the outer wall of the inner mold and the inner wall of the outer mold are respectively polished surfaces, and the overflow plate is detachably mounted on the outer mold, and the overflow plate is provided with an overflow port; The second clamping assembly is used to press and fix the outer mold to the base plate, the first clamping assembly is used to press and fix the inner mold to the base plate, and the first clamping assembly is used to press and fix the overflow plate to the outer mold, the adjustment assembly is installed on the base plate, and the adjustment assembly is used to adjust the balance of the base plate.

2. The resin casting mold with high versatility according to claim 1, characterized in that: The outer mold is respectively provided with an overflow area, a guide groove and a groove. The overflow area is used to install the overflow plate. The guide grooves are respectively located at the front and rear ends of the overflow area, and the groove is located at the bottom of the overflow area. Guide strips are respectively provided on the front and rear sides of the overflow plate, and an insertion strip is provided on the bottom of the overflow plate. The guide strips are slidably installed in the guide grooves, and the insertion strips are inserted in the grooves.

3. The resin casting mold with high versatility according to claim 1, characterized in that: The first pressing assembly includes a first nut, a second nut, a first screw, a first pressing block, a second pressing block, a third pressing block and a mounting plate; The first nut is mounted on one end of the first screw rod, the first nut abuts against the bottom plate, and the other end of the first screw rod passes through the bottom plate, the cushion, and the inner mold in sequence, and protrudes from the top surface of the inner mold; The mounting plate is mounted on the other end of the first screw, and the second pressing block and the third pressing block are mounted on the left and right ends of the mounting plate respectively, the second pressing block abuts against the overflow plate, and the third pressing block abuts against the outer mold; The first pressing block is installed on the bottom surface of the mounting plate, and the first pressing block is against the top surface of the inner mold. The second nut is installed on the other end of the first screw, and the second nut is attached to the top surface of the mounting plate.

4. The resin casting mold with high versatility according to claim 3, characterized in that: The first pressing assembly further includes a first adjusting screw and a second adjusting screw; The first adjusting screw and the second adjusting screw are rotatably mounted on the left and right ends of the mounting plate, respectively, and the first adjusting screw and the second adjusting screw are movable up and down on the left and right ends of the mounting plate, respectively, the second clamping block is mounted on the bottom of the first adjusting screw, and the third clamping block is mounted on the bottom of the second adjusting screw.

5. The resin casting mold with high versatility according to claim 1, characterized in that: The second pressing assembly includes a second screw, a third nut and a fourth nut; A fixing column is provided on the outer periphery of the outer mold, the third nut is installed on one end of the second screw rod, the third nut is against the base plate, the other end of the second screw rod passes through the base plate, the soft pad and the fixing column in sequence, and protrudes from the top surface of the fixing column, the fourth nut is installed on the other end of the second screw rod, and the fourth nut is fitted against the fixing column.

6. The resin casting mold with high versatility according to claim 1, characterized in that: The adjustment includes a third adjusting screw and a fixing nut; The fixing nuts are fixedly mounted on the bottom surfaces of the four end corners of the base plate respectively, and the end of the third adjusting screw passes through the soft pad and the base plate in sequence and is mounted on the fixing nuts.

7. The resin casting mold with high versatility according to claim 6, characterized in that: Four support blocks are provided on the bottom surface of the base plate, and each support block is located between two adjacent fixing nuts.

8. The resin casting mold with high versatility according to claim 1, characterized in that: The wiring board is detachably mounted on the front end of the outer mold.

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