Forming jig for processing transformer framework

Abstract

The utility model relates to the technical field of dies, in particular to a forming jig for processing a transformer framework, which comprises an upper die, a lower die and a middle die, the middle die comprises two middle dies with the same structure, the upper die is attached to the tops of the two middle dies, and the lower die is attached to the bottoms of the two middle dies; a first top die cavity is formed in the bottom of the upper die, a second top die cavity is formed in the top of the middle die, and the second top die cavity is coaxially matched with the first top die cavity; a first bottom die cavity is formed in the top of the lower die, a second bottom die cavity is formed in the bottom of the middle die, and the first bottom die cavity and the second bottom die cavity are coaxially matched; during mold closing, the two middle molds are symmetrically combined firstly, then the upper mold and the lower mold are attached to the middle molds correspondingly, mold closing is completed, and during demolding, the two middle molds can be taken out from the position between the upper mold and the lower mold correspondingly and transversely pulled out from the outer side correspondingly, so that a gap exists between the upper mold and the lower mold, and then the upper mold and the lower mold can be rapidly taken out; the structure of a product cannot be influenced, and the demolding efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer moulds, in particular to a forming jig for processing a transformer skeleton. Background Art

[0002] The frame is the main structural component of the transformer. Transformers are widely used in today's society, and the corresponding main body is also indispensable, so the frame plays an irreplaceable role, and some plastic frames are produced using molds.

[0003] The utility model with application number CN202222410957.6 discloses a transformer skeleton processing mold, including a workbench and a support plate, a through slot is arranged in the middle of the top of the workbench, grooves are arranged on both sides of the inner rear end of the through slot, and the inner rotation of the through slot is connected to the lower mold. The dual-axis motor can drive the gear bar outside the lower mold to drive the lower mold to rotate through the driving gear, and the injection molded transformer skeleton can be automatically poured into the collection box, which can save labor, and at the same time can prevent the transformer skeleton from not cooling down completely and scalding the staff, and can improve work efficiency. By arranging electric heating wires and heat-conducting layers inside the lower mold and the upper mold, the interior of the mold can be evenly heated, and the casting liquid can be prevented from agglomerating due to the sudden cooling of the casting liquid when it enters the mold. The bubbles in the casting liquid can be discharged by heating, and the quality of injection molding is improved.

[0004] When the existing mold is used to process the skeleton, when the middle mold is demoulded, the upper mold and the lower mold need to be removed first before demoulding, and the demoulding speed is slow. Utility Model Content

[0005] The utility model aims to provide a forming jig for processing a transformer skeleton in view of the deficiencies in the prior art.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A forming jig for processing a transformer skeleton comprises an upper die, a lower die and a middle die, wherein the middle die comprises two middle dies with the same structure, the two middle dies are arranged transversely and symmetrically, the upper die is attached to the tops of the two middle dies, and the lower die is attached to the bottoms of the two middle dies; a first top die cavity is formed at the bottom of the upper die, a second top die cavity is formed at the top of the middle die, and the second top die cavity is coaxially matched with the first top die cavity; a first bottom die cavity is formed at the top of the lower die, a second bottom die cavity is formed at the bottom of the middle die, and the first bottom die cavity is coaxially matched with the second bottom die cavity.

[0008] Furthermore: a semicircular hole is formed on the inner wall of the middle mold, and the two middle molds are symmetrically fitted together so that the two semicircular holes form a circular hole.

[0009] Further: the first top mold cavity includes a top pin groove for molding the pin module.

[0010] Furthermore: the upper die is longitudinally formed with a pin hole connected to the top pin groove.

[0011] Further: a rubber plug block is installed on the top of the pin hole in a pluggable manner.

[0012] Furthermore: the first top mold cavity is also formed with a protruding top positioning block along the length direction, and the top positioning block is formed with a concave limiting groove.

[0013] Furthermore: the lower mold is formed with a circular hole coaxially aligned with the semicircular hole of the middle mold, and the lower mold is pluggably installed with a molding column inserted from bottom to top.

[0014] Furthermore: a stop ring is formed at the bottom of the forming column, and the top surface of the forming column abuts against the limiting groove of the top positioning block.

[0015] Furthermore: the first bottom mold cavity is formed with a raised bottom positioning block along the length direction.

[0016] Furthermore: top positioning holes are formed on both sides of the upper mold, and bottom positioning holes coaxially matched with the top positioning holes are formed on both sides of the lower mold.

[0017] The beneficial effects of the utility model are as follows: when closing the mold, the two middle molds are first symmetrically merged, and then the upper mold and the lower mold are respectively fitted with the middle mold to complete the mold closing. When demolding, the two middle molds can be first taken out from between the upper mold and the lower mold, and the two middle molds are respectively pulled out horizontally from the outside, so that there is a gap between the upper mold and the lower mold. Then the upper mold and the lower mold can be quickly taken out without affecting the structure of the product, and the demolding efficiency is faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the forming jig.

[0019] Figure 2 Schematic diagram of the explosion structure of the forming jig.

[0020] Figure 3 This is a schematic diagram of the exploded structure of the forming fixture from another perspective.

[0021] Reference numerals include:

[0022] 1-upper mold,

[0023] 11-first top mold cavity, 12-top positioning block, 13-limiting groove, 14-top pin groove,

[0024] 15-pin hole, 16-top positioning hole, 17-rubber plug block,

[0025] 2-Middle mold,

[0026] 21-middle mold, 22-second top mold cavity, 23-semicircular hole, 24-second bottom mold cavity,

[0027] 3- Lower mold,

[0028] 31-first bottom mold cavity, 32-circular hole, 33-molding column, 34-stop ring, 35-bottom positioning block,

[0029] 36-Bottom positioning hole. DETAILED DESCRIPTION

[0030] The utility model is described in detail below with reference to the accompanying drawings.

[0031] like Figure 1-3 As shown, a forming jig for processing a transformer skeleton comprises an upper die 1, a lower die 3 and a middle die 2, the middle die 2 comprises two middle dies 21 of the same structure, the two middle dies 21 are arranged transversely and symmetrically, the upper die 1 is attached to the tops of the two middle dies 21, and the lower die 3 is attached to the bottoms of the two middle dies 21; a first top die cavity 11 is formed at the bottom of the upper die 1, a second top die cavity 22 is formed at the top of the middle die 21, and the second top die cavity 22 is coaxially matched with the first top die cavity 11; a first bottom die cavity 31 is formed at the top of the lower die 3, a second bottom die cavity 24 is formed at the bottom of the middle die 21, and the first bottom die cavity 31 and the second bottom die cavity 24 are coaxially matched.

[0032] When closing the mold, first merge the two middle molds 21 symmetrically, then fit the upper mold 1 and the lower mold 3 with the middle mold 2 respectively to complete the mold closing. When demolding, the two middle molds 21 can be taken out from between the upper mold 1 and the lower mold 3 respectively, and the two middle molds 21 are pulled out laterally from the outside respectively, so that there is a gap between the upper mold 1 and the lower mold 3. Then the upper mold 1 and the lower mold 3 can be quickly taken out without affecting the structure of the product, and the demolding efficiency is faster.

[0033] Preferably, a semicircular hole 23 is formed on the inner wall of the middle mold 21, and the two middle molds 21 are symmetrically fitted so that the two semicircular holes 23 form a circular hole 32. After the molds are closed, the semicircular holes 23 of the two middle molds 21 form coaxially aligned circular holes 32 to form the winding column of the skeleton.

[0034] The first top mold cavity 11 includes a top pin groove 14 for molding the pin module, which can form a plate structure of the pin module after injection molding. The mold is longitudinally molded with a pin hole 15 connected to the top pin groove 14, which can form a pin piece connected to the plate structure after injection molding.

[0035] A plug block 17 is pluggably installed on the top of the pin hole 15. During injection molding, the plug block 17 is embedded into the pin hole 15 to block the top of the pin hole 15 to prevent the molded pin part from deforming and prevent the injection glue from overflowing from the pin hole 15.

[0036] The first top mold cavity 11 is also formed with a protruding top positioning block 12 along the length direction, and the top positioning block 12 is formed with a concave limiting groove 13. The top positioning block 12 can cooperate with the second top mold cavity 22 of the middle groove, so that the upper mold 1 and the middle mold 21 are embedded, preventing the middle mold 21 from shifting, and having a certain positioning effect.

[0037] The lower mold 3 is formed with a circular hole 32 coaxially aligned with the semicircular hole 23 of the middle mold 2. The lower mold 3 is pluggably installed with a molding column 33 inserted from bottom to top. After the molding column 33 is inserted, it cooperates with the semicircular hole 23 of the middle mold 2 to form a winding column of the skeleton. When demolding, the molding column 33 is removed first, which can further disperse the mold, reduce the contact area between the molded product and the mold, and facilitate demolding.

[0038] A stop ring 34 is formed at the bottom of the molding column 33, and the top surface of the molding column 33 abuts against the limiting groove 13 of the top positioning block 12. When the molding column 33 is inserted into the mold, the stop ring 34 just abuts against the bottom surface of the circular hole 32 of the lower mold 3, so that the height of the molded skeleton is consistent.

[0039] The first bottom mold cavity 31 is formed with a raised bottom positioning block 35 along the length direction. The bottom positioning block 35 can cooperate with the second bottom mold cavity 24 of the middle groove, so that the lower mold 3 and the middle mold 21 are embedded to prevent the middle mold 21 from shifting, which has a certain positioning effect.

[0040] Top positioning holes 16 are formed on both sides of the upper mold 1, and bottom positioning holes 36 coaxially matched with the top positioning holes 16 are formed on both sides of the lower mold 3. When the molds are closed, guide columns are set between the upper mold 1 and the lower mold 3 to ensure coaxiality when the upper mold 1 and the lower mold 3 are closed, and the product formed after the mold is closed has higher precision.

[0041] In summary, it can be seen that the utility model has the above-mentioned excellent characteristics, which can enhance the performance unprecedented in the prior art and become a product with great practical value.

[0042] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A forming jig for processing a transformer frame, comprising an upper die, a lower die and a middle die, characterized in that: The middle mold includes two intermediate molds with the same structure, and the two intermediate molds are arranged horizontally and symmetrically. The upper mold is attached to the top of the two intermediate molds, and the lower mold is attached to the bottom of the two intermediate molds; a first top mold cavity is formed at the bottom of the upper mold, and a second top mold cavity is formed at the top of the intermediate mold, and the second top mold cavity is coaxially matched with the first top mold cavity; a first bottom mold cavity is formed at the top of the lower mold, and a second bottom mold cavity is formed at the bottom of the intermediate mold, and the first bottom mold cavity and the second bottom mold cavity are coaxially matched.

2. The forming jig for processing a transformer skeleton according to claim 1 is characterized in that: The inner side wall of the middle mold is formed with a semicircular hole, and the two middle molds are symmetrically attached to form a circular hole through the two semicircular holes.

3. The forming jig for processing a transformer skeleton according to claim 2 is characterized in that: The first top mold cavity includes a top pin groove for molding the pin module.

4. The forming jig for processing a transformer skeleton according to claim 3 is characterized in that: The upper die is longitudinally formed with a pin hole which is communicated with the top pin groove.

5. The forming jig for processing a transformer skeleton according to claim 4 is characterized in that: A rubber plug block is installed on the top of the pin hole in a pluggable manner.

6. The forming jig for processing a transformer skeleton according to claim 5, characterized in that: The first top mold cavity is also formed with a protruding top positioning block along the length direction, and the top positioning block is formed with a concave limiting groove.

7. The forming jig for processing a transformer skeleton according to claim 6 is characterized in that: The lower die is formed with a circular hole coaxially aligned with the semicircular hole of the middle die, and the lower die is pluggably mounted with a forming column inserted from bottom to top.

8. The forming jig for processing a transformer skeleton according to claim 7 is characterized in that: A stop ring is formed at the bottom of the forming column, and the top surface of the forming column abuts against the limiting groove of the top positioning block.

9. The forming jig for processing a transformer frame according to claim 8, characterized in that: The first bottom mold cavity is formed with a raised bottom positioning block along the length direction.

10. The forming jig for processing a transformer skeleton according to claim 9, characterized in that: Top positioning holes are formed on both sides of the upper mold, and bottom positioning holes coaxially matched with the top positioning holes are formed on both sides of the lower mold.

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