A transformer winding winding processing device

Abstract

A transformer winding winding processing device, comprising a winding shaft and a winding die, the bottom of the winding shaft is provided with a fastening roller group, the fastening roller group comprises a hammering roller rolling in close contact with the winding material outside the winding die, the inside of the hammering roller is provided with a movable part reciprocatingly knocking the close contact point, the movable part is configured to knock the hammering roller at a set frequency, so that the winding material on the inner and outer sides of the rear side of the bonding area is uniformly in close contact. The present application sets up the fastening roller group, including the hammering roller, which knocks the winding material in the winding process at a high frequency, so that the inner and outer layers of the material are uniformly in close contact, effectively avoiding the problems of interlayer gap and wrinkles, thereby improving the quality of the winding. At the same time, the damping roller and the pressing roller can further eliminate material wrinkles and looseness, ensure the flatness and tightness of the winding material during the winding process, and the adjustable winding die facilitates the removal of the formed winding, thereby improving the production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of transformer processing technology, specifically referring to a transformer winding processing device. Background Technology

[0002] When copper foil is used to wind transformer windings, the appropriate specifications of copper foil and interlayer insulation material are selected according to the design. Before winding, the foil is placed flat on a special foil winding machine, and the winding tension is adjusted to ensure that the foil is subjected to uniform force during the winding process. When the winding begins, the foil is wound tightly and neatly on the winding mold. After each layer is wound, a layer of insulation material is laid to enhance the interlayer insulation performance. After the winding is completed, the winding mold is removed, the winding is shaped and fixed, and insulation testing is performed to ensure that its electrical performance meets the requirements.

[0003] During the copper foil winding process, uneven copper foil thickness or high hardness, improper tension control during winding can cause the copper foil to deform and wrinkle or increase the interlayer gap. The wrinkles and gaps on the copper foil will disrupt the electric field distribution, leading to local electric field concentration, which can easily cause insulation breakdown. At the same time, it will increase the winding resistance, resulting in increased heating and reduced efficiency. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the purpose of the present invention is to provide a transformer winding processing apparatus to at least partially solve the problems mentioned in the background art.

[0005] The technical solution adopted by this invention is as follows: A transformer winding processing device is proposed, comprising: A winding shaft, with its axis horizontally mounted on a winding machine, is configured to be driven to rotate; A winding die is fitted onto the winding shaft and rotates with the winding shaft to wind the winding material; The bottom of the winding shaft is provided with a fastening roller group, which includes a hammer roller that rolls in contact with the outer winding material of the winding mold. The position where the inner and outer materials of the winding material are joined together during winding is set as the joining area. The contact point between the hammer roller and the winding material is set on the rear side of the joining area. The hammer roller is provided with a movable part that reciprocates to strike the contact point. The movable part is configured to strike the hammer roller at a set frequency so that the inner and outer sides of the winding material on the rear side of the joining area are evenly joined.

[0006] Furthermore, the hammering roller includes a roller, and the movable component includes a vibrating motor and a hammering cover. The roller is in contact with the winding material on the outside of the winding mold. The vibrating motor is located at the axial position of the roller, and the hammering cover is located at the contact point between the roller and the winding material. The hammering cover is always in contact with the inner side of the roller. A hammering head is fixed on the drive shaft of the vibrating motor. The hammering cover has a receiving groove on the side facing the hammering head. The hammering head moves radially in the receiving groove and hammers the hammering cover at a set frequency. The vibration is transmitted to the winding material at the contact point through the hammering cover and the roller.

[0007] Furthermore, the vibratory motor is provided with three sets of support rollers that are centrally symmetrically distributed around the axis of the roller. The support rollers are connected to the vibratory motor through a support roller frame. The support rollers are rolled and fitted inside the support rollers so that the vibratory motor is always at the axial position of the support rollers.

[0008] Furthermore, the hammer roller is connected to the winding machine via a shaft, and the winding machine is provided with an elastic seat corresponding to the hammer roller. The shaft end of the hammer roller is installed in the elastic seat, and the elastic seat is configured to make the hammer roller always elastically fit against the outside of the winding material outside the winding mold.

[0009] Furthermore, the fastening roller assembly includes a damping roller disposed on the side of the hammer roller away from the bonding area. The damping roller is connected to the hammer roller via a damping roller bracket. The damping roller bracket is configured to ensure that the damping roller is always in elastic contact with the winding material on the outside of the winding mold. A damping ring is provided between the damping roller and the damping roller bracket, so that the linear velocity of the damping roller is less than the linear velocity of the winding material.

[0010] Furthermore, the fastening roller assembly includes a pressure roller disposed between the hammer roller and the bonding area. The pressure roller is connected to the hammer roller via a pressure roller bracket. The pressure roller bracket is configured to ensure that the pressure roller is always elastically in contact with the winding material outside the winding mold. The length of the pressure roller bracket is adjustable to adjust the position of the pressure roller between the hammer roller and the bonding area.

[0011] Furthermore, the winding mold includes a winding mold, a bushing, and a limiting clamp. The inner side of the bushing is provided with a shaft groove that mates with the winding shaft. The bushing is fitted onto the outer side of the winding shaft through the shaft groove. The winding mold is installed on the outer side of the bushing. The limiting clamp is fixed to both ends of the bushing.

[0012] Furthermore, the winding mold includes two mold blocks symmetrically distributed on both sides of the wedge. The contact surface between the mold block and the wedge is set as a wedge surface. The wedge and the mold block can slide relative to each other. The wedge slides inside the mold block in a first position and a second position. When the wedge is in the first position, the wedge is at the upper end of the two mold blocks, and the outer surfaces of the mold block and the wedge form a smooth arc surface. When the wedge is in the second position, the wedge is at the lower end of the two mold blocks, the two wedges are in contact with the outer wall of the mold block, and the distance between the wedges is reduced.

[0013] Furthermore, the outer wall of the bushing is provided with an adjuster for adjusting the position of the wedge. The adjuster includes a base plate fixed to the outer wall of the bushing. An X-bracket is hinged between the base plate and the mold block. The base plate is provided with an adjusting screw for adjusting the height of the X-bracket. The X-bracket is configured to be adjusted by the adjusting screw to drive the wedge to move between the first position and the second position.

[0014] Furthermore, the length of the winding material around the winding mold is set to L, and the distance between the contact point and the bonding area is less than or equal to L / 2.

[0015] Beneficial effects: This invention improves winding quality by setting up a fastening roller group, including a hammering roller, to frequently strike the winding material during the winding process, ensuring uniform adhesion of the inner and outer layers and effectively avoiding interlayer gaps and wrinkling. At the same time, the damping roller and pressure roller can further eliminate material wrinkles and looseness, ensuring the flatness and tightness of the winding material during the winding process. The adjustable winding mold facilitates the removal of the winding after it is formed, improving production efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a transformer winding processing device according to an embodiment of the present invention; Figure 2 A schematic diagram of the fastening roller assembly is provided for an embodiment of the present invention; Figure 3 This invention provides a schematic diagram of the winding fixture in a vertical state and the fastening roller group in an embodiment of the invention; Figure 4 This invention provides a schematic diagram of the winding fixture in a horizontal state and the fastening roller group in an embodiment of the invention; Figure 5 This is a schematic diagram of the internal structure of the winding tooling in a supported state, as proposed in an embodiment of the present invention; Figure 6 This invention provides a schematic diagram of the internal structure of the winding tool in its contracted state, as presented in an embodiment of the invention. Figure 7A schematic diagram of the internal structure of the hammer roller is provided for an embodiment of the present invention.

[0017] Among them, 10, winding shaft; 11, winding machine; 12, base; 13, elastic movement; 20, winding mold; 200, shaft groove; 21, mold block; 22, wedge block; 23, shaft sleeve; 24, limiting clamp; 25, adjuster; 251, adjusting screw; 252, X bracket; 253, base plate; 30, fastening roller group; 31, hammering roller; 311, roller; 312, vibrating motor; 3121, hammer head; 313, support roller; 3131, support roller frame; 314, hammering cover; 32, damping roller; 321, damping roller bracket; 33, pressure roller; 331, pressure roller bracket.

[0018] The accompanying drawings are provided to further understand the embodiments and form part of the specification. They are used together with the embodiments for explanation and do not constitute a limitation on the embodiments. Detailed Implementation

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection.

[0020] In the description of the embodiments, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments.

[0021] This invention provides a transformer winding processing device. During the winding process, the copper foil is hammered frequently to make the interlayer position relationship uniform and stable, which aims to improve the quality of winding. The device mainly includes a winding shaft 10, a winding mold 20 and a fastening roller group 30.

[0022] like Figure 1As shown, the axis of the winding shaft 10 is mounted horizontally on the winding machine 11 and is configured to rotate under the drive of the winding machine 11. The winding mold 20 is fitted on the winding shaft 10 and rotates with the winding shaft 10 to wind the winding material. A base 12 is usually set below the winding machine 11 to keep the machine stable. An unwinding machine is set on the front side of the winding machine 11 for unwinding the winding material (copper foil and interlayer insulation material). The unwound winding material is layered and wound on the outside of the winding mold 20, and then welded to the copper busbar to form the winding of the transformer.

[0023] Generally, when winding thick copper foil, the copper foil may not adhere properly due to the hardness of the copper foil material, even when the set tension is applied. This lack of adhesion can cause the copper foil to deform and wrinkle or increase the gap between layers. Wrinkles and gaps on the copper foil can disrupt the uniform distribution of the electric field, leading to local electric field concentration and potentially causing insulation breakdown. To address this, the present invention provides a fastening roller group 30 at the bottom of the winding shaft 10. The fastening roller group 30 is used to strike the surface of the copper foil at high frequency to ensure that every part of the outer layer adheres to the inner layer material during the winding process, thus avoiding the problem of uneven gaps between layers.

[0024] like Figure 1 , Figure 3 , Figure 4 and Figure 7 As shown, the fastening roller assembly 30 includes a hammer roller 31 that rolls in contact with the outer winding material of the winding die 20.

[0025] In some embodiments, the joint area is defined as the position where the inner and outer materials meet during the winding process. Typically, the winding material is unwound from the top of the winding mold 20 by an unwinding machine, and then the winding mold 20 winds the material in a clockwise direction as shown in the figure. The contact point between the hammer roller 31 and the winding material is located on the rear side of the joint area. That is, after the winding material is wound around the inner layer, the hammer roller 31 strikes the surface of the winding material so that the outer layer of winding material can fit together with the inner layer of winding material.

[0026] Specifically, the hammer roller 31 has a movable part inside that reciprocates to strike the bonding point. The movable part is configured to strike the hammer roller 31 at a set frequency (generally 1 to 20 times / second, which can be adjusted according to the winding speed), so that the inner and outer sides of the winding material on the back side of the bonding area are evenly bonded. In this way, even for harder winding materials, after the outer layer material is wound and bonded with the inner layer material, the hammer roller 31 can strike the outer layer material and the inner layer material to bond with each other, so that the material is evenly distributed and avoids uneven distribution or large gaps between layers in some areas.

[0027] The hammering roller 31 includes a roller 311, and the moving parts include a vibrating motor 312 and a hammering cover 314.

[0028] In some embodiments, the roller 311 is made of stainless steel or alloy material to form a hollow cylindrical body. During operation, the roller 311 is in contact with the winding material on the outside of the winding mold 20, so that the roller 311 is always partially in contact with the winding material on the outside of the winding mold 20, and the striking part of the vibrating motor 312 is the contact area.

[0029] Furthermore, the vibration motor 312 is located at the axial position of the roller 311, and the hammer cover 314 is located at the contact point between the roller 311 and the winding material, and the hammer cover 314 is always in contact with the inner side of the roller 311.

[0030] In some embodiments, a hammer head 3121 is fixed on the drive shaft of the vibration motor 312. The hammer head 3121 may be made of alloy or plastic material, and the hammer cover 314 is made of rubber or rubber-plastic material. The hammer cover 314 has a receiving groove on the side facing the hammer head 3121. Under the drive of the vibration motor 312, the hammer head 3121 can move in the receiving groove in the radial direction and hammer the hammer cover 314 at a set frequency. In this way, the vibration is transmitted to the winding material at the contact point through the hammer cover 314 and the roller 311, realizing real-time hammering during the winding process of the outer layer winding material, so that the outer layer winding material can be evenly attached to the inner layer material and eliminate the interlayer gap.

[0031] like Figure 7 As shown, in order to keep the vibratory motor 312 always at the axial position of the support roller 313, three sets of support rollers 313 are provided around the vibratory motor 312 in a centrally symmetrical manner around the axis of the roller 311. The support rollers 313 are connected to the vibratory motor 312 through the support roller frame 3131, and the support rollers 313 are rolled and attached to the inner side of the support roller 313.

[0032] Thus, as the outer roller 311 rotates, the vibrating motor 312, located in the center, can always remain on the axis of the roller 311. The three sets of support rollers 313 are connected to the vibrating motor 312 through the support roller frame 3131 and fixed to the shaft of the outer connecting roller 311. When the roller 311 is in contact with the winding material, it rotates relative to the shaft, while the inner vibrating motor 312 keeps striking, so that the winding material is kept softened by the striking of the vibrating motor 312 during the winding process.

[0033] Furthermore, the hammer roller 31 is connected to the winding machine 11 via a shaft. The winding machine 11 is provided with an elastic seat 13 corresponding to the hammer roller 31. The shaft end of the hammer roller 31 is installed in the elastic seat 13. The elastic seat 13 is configured to make the hammer roller 31 always elastically fit against the outside of the winding material outside the winding mold 20.

[0034] In some embodiments, the elastic seat 13 is provided with a spring structure inside, which can spring up the axial direction (in the direction of the winding mold 20) of the material extending into the elastic seat 13, so as to ensure that the hammer roller 31 can always be in contact with the winding material.

[0035] like Figure 2 , Figure 3 and Figure 4 As shown, the fastening roller assembly 30 includes a damping roller 32 disposed on the side of the hammer roller 31 away from the engagement area. The damping roller 32 is connected to the hammer roller 31 through a damping roller bracket 321. The damping roller bracket 321 is configured to ensure that the damping roller 32 is always in elastic contact with the winding material on the outside of the winding mold 20.

[0036] In some embodiments, the damping roller 32 is a rubber roller with anti-slip texture on its surface, and a damping ring is provided between the damping roller 32 and the damping roller support 321. The damping ring can increase the resistance when the damping roller 32 rotates, so that the linear velocity of the damping roller 32 is less than the linear velocity of the winding material. By utilizing the speed difference between the damping roller 32 and the winding material during winding, as well as the large frictional resistance on the surface of the damping roller 32, the damping roller 32 has a counterclockwise thrust on the winding material, which can prevent wrinkles caused by slippage during winding, thereby eliminating the situation of wrinkles occurring during winding of the winding material.

[0037] like Figure 2 , Figure 3 and Figure 4 As shown, the fastening roller assembly 30 also includes a pressure roller 33 disposed between the hammer roller 31 and the bonding area. The pressure roller 33 is connected to the hammer roller 31 through a pressure roller bracket 331. The pressure roller bracket 331 is configured to ensure that the pressure roller 33 is always in elastic contact with the winding material on the outside of the winding mold 20, and the length of the pressure roller bracket 331 is adjustable to adjust the position of the pressure roller 33 between the hammer roller 31 and the bonding area.

[0038] In some embodiments, the pressure roller bracket 331 adopts a positionable telescopic frame, which can be fixed by bolts. The pressure roller 33 can be used to press the winding material between the hammer roller 31 and the bonding area. For example, when welding copper busbars, the end position of the winding material is fixed, which plays a role in preventing the winding material from loosening and maintaining a consistent and uniform bonding effect between the layers of winding material.

[0039] like Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the winding mold 20 includes a winding mold, a bushing 23, and a limiting clamp 24. The inner side of the bushing 23 is provided with a shaft groove 200 that mates with the winding shaft 10. The bushing 23 is fitted onto the outer side of the winding shaft 10 through the shaft groove 200. The winding mold is installed on the outer side of the bushing 23. The limiting clamp 24 is fixed to both ends of the bushing 23. In this embodiment, the cross-sectional structure of the winding mold 20 is an oval structure. The winding mold 20 facilitates the winding of the outer winding material and makes it easy to remove the wound winding material later.

[0040] Furthermore, the winding mold includes two mold blocks 21 symmetrically distributed on both sides of the wedge 22. The contact surface between the mold block 21 and the wedge 22 is set as a wedge surface. The wedge 22 and the mold block 21 can slide relative to each other. The wedge 22 slides inside the mold block 21 in a first position and a second position. When the wedge 22 is in the first position, the wedge 22 is at the upper end of the two mold blocks 21, and the outer surfaces of the mold block 21 and the wedge 22 form a smooth arc surface. When the wedge 22 is in the second position, the wedge 22 is at the lower end of the two mold blocks 21, the two wedges 22 are in contact with the outer wall of the mold block 21, and the distance between the wedges 22 decreases.

[0041] In some embodiments, both the mold block 21 and the wedge block 22 are made of alloy and / or plastic composite materials, designed to provide core support for the winding material. To facilitate the removal of the winding mold after the winding material is wound, a movable structure is adopted between the mold block 21 and the wedge block 22. The movable position of the wedge block 22 is between a first position and a second position. In the first position, the mold block 21 and the wedge block 22 together constitute the winding mold, providing support for the winding material and winding the winding material into a pre-formed shape. In the second position, both the mold block 21 and the wedge block 22 retract inward, facilitating the removal of the outer wound winding material from the mold.

[0042] Furthermore, the outer wall of the bushing 23 is provided with an adjuster 25 for adjusting the position of the wedge 22. The adjuster 25 includes a base plate 253 fixed to the outer wall of the bushing 23. An X-bracket 252 is hinged between the base plate 253 and the mold block 21. An adjusting screw 251 is provided on the base plate 253 to adjust the height of the X-bracket 252. The X-bracket 252 is configured to drive the wedge 22 to move between a first position and a second position by adjusting the adjusting screw 251.

[0043] In some embodiments, the adjuster 25 can be rotated using tools such as a handwheel. When it is necessary to adjust the height of the wedge 22, the handwheel is turned to rotate the lead screw in the adjuster 25, causing the sliding sleeve on the lead screw to move along the lead screw, thereby adjusting the height of the X bracket 252 and thus changing the height of the wedge 22.

[0044] In a preferred embodiment, the length of the winding material around the mold 20 is set to L, and the distance between the contact point and the bonding area is less than or equal to L / 2. In this way, the winding material wrapped around the outside of the mold 20 can be bonded to the inner layer material in a timely manner, avoiding gaps.

[0045] In conjunction with the above embodiments, the present invention, by setting a fastening roller group 30, including a hammering roller 31 therein, performs high-frequency hammering on the winding material during the winding process, so that the inner and outer layers of material are evenly bonded, effectively avoiding interlayer gaps and wrinkling problems, thereby improving the quality of the winding. At the same time, the damping roller 32 and the pressure roller 33 can further eliminate material wrinkles and loosening, ensuring the flatness and tightness of the winding material during the winding process. The adjustable winding mold facilitates the removal of the winding after it is formed, improving production efficiency.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

[0047] The embodiments have been described above, and such description is not restrictive. The figures shown are only one embodiment, and the actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit, such design should fall within the scope of protection.

Claims

1. A transformer winding processing device, characterized in that, include: A winding shaft (10) is mounted on a winding machine (11) with its axis horizontally mounted and configured to be driven to rotate; A winding die (20) is fitted onto the winding shaft (10) and rotates with the winding shaft (10) to wind the winding material; The bottom of the winding shaft (10) is provided with a fastening roller group (30), which includes a hammer roller (31) that rolls in contact with the outer winding material of the winding mold (20). The position where the inner and outer materials are joined together during winding is set as the joining area. The contact point between the hammer roller (31) and the winding material is set on the rear side of the joining area. The hammer roller (31) is provided with a movable part that reciprocates to strike the contact point inside the hammer roller (31). The movable part is configured to strike the hammer roller (31) at a set frequency.

2. The transformer winding processing device according to claim 1, characterized in that: The hammering roller (31) includes a roller (311), and the movable parts include a vibrating motor (312) and a hammering cover (314). The roller (311) is in contact with the winding material on the outside of the winding mold (20). The vibrating motor (312) is located at the axial position of the roller (311), and the hammering cover (314) is located at the contact point between the roller (311) and the winding material, and the hammering cover (314) is always in contact with the winding material. Inside the roller (311), a hammer head (3121) is fixed on the drive shaft of the vibration motor (312). The hammer cover (314) has a receiving groove on the side facing the hammer head (3121). The hammer head (3121) moves in the receiving groove in the radial direction and hammers the hammer cover (314) at a set frequency. The vibration is transmitted to the winding material at the contact point through the hammer cover (314) and the roller (311).

3. The transformer winding processing device according to claim 2, characterized in that: The vibratory motor (312) is provided with three sets of support rollers (313) arranged symmetrically around the axis of the roller (311). The support rollers (313) are connected to the vibratory motor (312) through support roller frame (3131). The support rollers (313) are rolled and attached to the inner side of the support rollers (313), so that the vibratory motor (312) is always at the axial position of the support rollers (313).

4. The transformer winding processing apparatus according to claim 3, characterized in that: The hammer roller (31) is connected to the winding machine (11) via a shaft. The winding machine (11) is provided with an elastic seat (13) corresponding to the hammer roller (31). The shaft end of the hammer roller (31) is installed in the elastic seat (13). The elastic seat (13) is configured to make the hammer roller (31) always elastically fit against the outside of the winding material outside the winding mold (20).

5. The transformer winding processing apparatus according to claim 1, characterized in that: The fastening roller assembly (30) includes a damping roller (32) disposed on the side of the hammering roller (31) away from the bonding area. The damping roller (32) is connected to the hammering roller (31) through a damping roller bracket (321). The damping roller bracket (321) is configured to make the damping roller (32) always elastically fit with the winding material outside the winding mold (20). A damping ring is provided between the damping roller (32) and the damping roller bracket (321) so that the linear velocity of the damping roller (32) is less than the linear velocity of the winding material.

6. The transformer winding processing apparatus according to claim 1, characterized in that: The fastening roller assembly (30) includes a pressure roller (33) disposed between the hammer roller (31) and the bonding area. The pressure roller (33) is connected to the hammer roller (31) via a pressure roller bracket (331). The pressure roller bracket (331) is configured to ensure that the pressure roller (33) is always elastically in contact with the winding material outside the winding mold (20). The length of the pressure roller bracket (331) is adjustable to adjust the position of the pressure roller (33) between the hammer roller (31) and the bonding area.

7. The transformer winding processing apparatus according to claim 1, characterized in that: The winding mold (20) includes a winding mold, a bushing (23) and a limiting clamp (24). The inner side of the bushing (23) is provided with a shaft groove (200) that cooperates with the winding shaft (10). The bushing (23) is fitted onto the outer side of the winding shaft (10) through the shaft groove (200). The winding mold is installed on the outer side of the bushing (23). The limiting clamp (24) is fixed to both ends of the bushing (23).

8. The transformer winding processing apparatus according to claim 7, characterized in that: The winding mold includes two mold blocks (21) symmetrically distributed on both sides of the wedge (22). The contact surface between the mold block (21) and the wedge (22) is set as a wedge surface. The wedge (22) and the mold block (21) can slide relative to each other. The wedge (22) slides on the inner side of the mold block (21) in a first position and a second position. When the wedge (22) is in the first position, the wedge (22) is at the upper end of the two mold blocks (21), and the outer surfaces of the mold block (21) and the wedge (22) form a smooth arc surface. When the wedge (22) is in the second position, the wedge (22) is at the lower end of the two mold blocks (21), and the two wedges (22) are in contact with the outer wall of the mold block (21), and the distance between the wedges (22) is reduced.

9. The transformer winding processing apparatus according to claim 8, characterized in that: An adjuster (25) for adjusting the position of the wedge (22) is provided on the outer wall of the bushing (23). The adjuster (25) includes a base plate (253) fixed to the outer wall of the bushing (23). An X-bracket (252) is hinged between the base plate (253) and the mold block (21). An adjusting screw (251) for adjusting the height of the X-bracket (252) is provided on the base plate (253). The X-bracket (252) is configured to be adjusted by the adjusting screw (251) to drive the wedge (22) to move between the first position and the second position.

10. The transformer winding processing apparatus according to claim 1, characterized in that: The length of the winding material around the winding mold (20) is set to L, and the distance between the contact point and the bonding area is less than or equal to L / 2.

Images