High-precision block-shaped adjustable die

Abstract

The utility model relates to the technical field of transformer winding, in particular to a high-precision block-shaped adjustable mold which comprises a mold shaft and a winding plate, guide sleeves are sleeved on the front section and the rear section of the mold shaft, supporting mechanisms for adjusting the winding diameter are sleeved on the guide sleeves at intervals, each supporting mechanism comprises a supporting plate, a supporting rod and a sliding disc, and the supporting plates are vertically fixed on the inner side of the winding plate. Inclined moving grooves are formed in the side surfaces of the supporting plates; the sliding discs sleeve the guide sleeve at intervals, the supporting rods are fixedly arranged around the edges of the sliding discs, the outer ends of the supporting rods slide along the moving grooves, the winding diameter is adjusted through the supporting mechanism, compared with a traditional hinge rod connecting structure, fit clearance and tangential tension do not exist, force transmission is more direct, and the overall structural strength is greatly improved; the block-shaped molds are arranged on the outer sides of the winding plates at intervals in the axis direction of the mold shaft, the block-shaped molds on the outer sides of the adjacent winding plates are matched in a staggered mode, transition of the coil wound on the adjustable mold is smoother in the winding diameter changing process of the adjustable mold, and the roundness of the coil is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer winding, in particular to a high-precision block-shaped adjustable die. Background Art

[0002] Winding dies are widely used in the field of transformer winding technology and are suitable for winding transformer coils of various specifications. With the change of technology, winding dies have gradually developed from fixed winding dies with fixed winding diameters to adjustable winding dies with adjustable winding diameters. Articulated rods are used as connecting structures to push the articulated rods to achieve changes in winding diameters. However, there are fitting gaps and tangential tensions in the articulated rods during use. At the same time, most existing technologies use crossbars as winding plates that directly contact the coils. The roundness of the coils cannot be guaranteed during the winding process, and the coils are prone to wear. Utility Model Content

[0003] In order to improve the problem of the adjustable die in the process of adjusting the winding diameter in the above-mentioned background technology, the utility model provides a high-precision block-shaped adjustable die.

[0004] The utility model provides a high-precision block-shaped adjustable mold adopts the following technical solution:

[0005] A high-precision block-shaped adjustable die comprises a die shaft and a winding plate. The front and rear sections of the die shaft are both sleeved with guide sleeves. Support mechanisms for adjusting the winding diameter are sleeved on the guide sleeves at intervals, and the support mechanisms arranged on the front and rear guide sleeves are symmetrical to each other. The outer ends of the support mechanisms are fixed on the inner side of the winding plate. Block dies are arranged at intervals on the outer side of the winding plate along the axial direction of the die shaft, and the block dies on the outer sides of adjacent winding plates are staggered.

[0006] Preferably, the supporting mechanism includes a support plate, a support rod and a sliding plate, the support plate is vertically fixed on the inner side of the winding plate, and an inclined movable groove is opened on the side of the support plate; the sliding plate is sleeved on the guide sleeve at intervals, and the support rod is fixed around the edge of the sliding plate, the number of the support rod is consistent with that of the support plate, and the outer end of the support rod slides along the movable groove.

[0007] Preferably, the supporting mechanisms and winding plates are both provided in even numbers.

[0008] Preferably, the block mold adopts an arc-shaped block structure and winding plates protrude from the upper and lower sides of the block mold. The surface of the block mold is provided with a corrugated wear-resistant layer, and the corrugated wear-resistant layer is made of resin material and has better wear resistance.

[0009] In summary, the utility model has the following beneficial technical effects:

[0010] 1. The block dies arranged on the outside of adjacent winding plates are staggered and matched, so that the coil wound on the adjustable die has a smoother transition during the change of the winding diameter of the adjustable die, thereby ensuring the roundness of the coil and reducing the wear on the coil.

[0011] 2. The winding diameter is adjusted through the support mechanism, and the outer end of the support rod slides along the moving groove. Compared with the traditional hinged rod connection structure, there is no matching gap and tangential tension, the force transmission is more direct, and the overall structural strength is greatly increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a high-precision block-shaped adjustable mold according to an embodiment of the utility model;

[0013] Figure 2 It is a side sectional view of a high-precision block-shaped adjustable mold according to an embodiment of the utility model;

[0014] Figure 3 along Figure 2 Sectional view along line AA;

[0015] Figure 4 It is a structural schematic diagram of a block mold according to an embodiment of the utility model.

[0016] Explanation of the reference numerals: 1. mold shaft; 2. winding plate; 3. guide sleeve; 4. supporting mechanism; 5. block mold; 6. support plate; 7. support rod; 8. sliding plate; 9. movable groove; 10. corrugated wear-resistant layer. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-4 The utility model is described in further detail.

[0018] The utility model embodiment discloses a high-precision block-shaped adjustable mold.

[0019] Reference Figure 1 A high-precision block-shaped adjustable die comprises a die shaft 1 and a winding plate 2. The front and rear sections of the die shaft 1 are sleeved with guide sleeves 3. Support mechanisms 4 for adjusting the winding diameter are sleeved on the guide sleeves 3 at intervals, and the support mechanisms 4 arranged on the front and rear guide sleeves 3 are symmetrical to each other. The outer ends of the support mechanisms 4 are fixed to the inner side of the winding plate 2. Block dies 5 are arranged at intervals on the outer side of the winding plate 2 along the axial direction of the die shaft 1. The block dies 5 on the outer sides of adjacent winding plates 2 are staggered. When the adjustable die expands outward as a whole, discontinuous gaps appear between the block dies 5 on the outer sides of adjacent winding plates 2.

[0020] Reference Figure 1 , Figure 2 The supporting mechanism 4 includes a supporting plate 6, a supporting rod 7 and a sliding plate 8. The supporting plate 6 is vertically fixed on the inner side of the winding plate 2, and an inclined moving groove 9 is opened on the side of the supporting plate 6; the sliding plate 8 is sleeved on the guide sleeve 3 at intervals, and the supporting rod 7 is fixed around the edge of the sliding plate 8. The number of the supporting rod 7 is the same as that of the supporting plate 6, and the outer end of the supporting rod 7 slides along the moving groove 9.

[0021] The support rod 7 diverges outward around the edge of the sliding plate 8, and a moving block is provided at the end of the support rod 7 and is slidably arranged in the moving groove 9. As an improved solution to the above content, when the support rod 7 is perpendicular to the inclination direction of the moving groove 9, the force transmission is more direct.

[0022] Reference Figure 2 , Figure 3 , the support mechanisms 4 and the winding plates 2 are both provided with an even number; the support mechanisms 4 are provided with an even number and the multiple support mechanisms 4 arranged on the front and rear guide sleeves 3 are symmetrical to each other, the support mechanisms 4 have an even number of support rods 7 inside the support mechanisms 4, and the number of support rods 7 corresponds to the number of winding plates 2, to prevent the edges of the winding plates 2 from overlapping and facilitate assembly.

[0023] Reference Figure 3 , Figure 4 The block mold 5 adopts an arc-shaped block structure and the upper and lower sides of the block mold 5 protrude from the winding plate 2. The surface of the block mold 5 is provided with a corrugated wear-resistant layer 10, and the corrugated wear-resistant layer 10 is made of resin material; the surface of the block mold 5 located in the front section of the winding plate 2 is embedded with a sliding metal part to facilitate the removal of the wound coil.

[0024] The implementation principle of a high-precision block-shaped adjustable mold in an embodiment of the utility model is as follows: the guide sleeves 3 sleeved on the front and rear sections of the mold shaft 1 move toward each other, driving the sliding plate 8 to move, and the outer end of the support rod 7 slides along the moving groove 9, pushing the winding plate 2 to expand outward, thereby adjusting the winding diameter, and the coil moves smoothly on the surface of the block mold 5 to be tightened, and finally the wound coil is moved out.

[0025] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A high-precision block-shaped adjustable mold, characterized in that: The invention comprises a die shaft (1) and a winding plate (2), wherein the front and rear sections of the die shaft (1) are sleeved with guide sleeves (3), the guide sleeves (3) are sleeved with support mechanisms (4) for adjusting the winding diameter at intervals, and the support mechanisms (4) arranged on the front and rear guide sleeves (3) are symmetrical to each other, the outer ends of the support mechanisms (4) are fixed to the inner side of the winding plate (2), and block dies (5) are arranged at intervals on the outer side of the winding plate (2) along the axis direction of the die shaft (1), and the block dies (5) on the outer sides of adjacent winding plates (2) are staggered.

2. A high-precision block-shaped adjustable mold according to claim 1, characterized in that: The support mechanism (4) comprises a support plate (6), a support rod (7) and a sliding plate (8); the support plate (6) is vertically fixed on the inner side of the winding plate (2); an inclined moving groove (9) is provided on the side of the support plate (6); the sliding plate (8) is sleeved on the guide sleeve (3) at intervals; the support rod (7) is fixedly arranged around the edge of the sliding plate (8); the number of the support rod (7) is the same as that of the support plate (6); and the outer end of the support rod (7) slides along the moving groove (9).

3. A high-precision block-shaped adjustable mold according to claim 2, characterized in that: The supporting mechanisms (4) and the winding plates (2) are both provided in even numbers.

4. A high-precision block-shaped adjustable mold according to claim 1, characterized in that: The block mold (5) adopts an arc-shaped block structure, and the winding plate (2) protrudes from the upper and lower sides of the block mold (5). The surface of the block mold (5) is provided with a corrugated wear-resistant layer (10), and the corrugated wear-resistant layer (10) is made of resin material.

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