A dry-type transformer coil pressing processing device

Abstract

The present invention discloses a dry-type transformer coil pressing processing device, which relates to the technical field of transformer processing equipment, and comprises a horizontally arranged reel and a winding machine for driving the reel to rotate, wherein the winding machine is provided with a pressure mechanism for pressing the coil winding on the reel, and the pressure mechanism comprises: a bracket assembly, a pressing assembly, which comprises a moving block unit adapted to slide on a track unit, a pressing unit is installed on the moving block unit, and the pressing unit has a first pressing form and a second pressing form adapted to different directions of coil winding arrangement; a switching assembly, which comprises a convex rod unit movably mounted on the moving block unit, and the convex rod unit switches the pressing form of the pressing unit when moving on the moving block unit. The present invention can apply pressure to the coil in real time during the winding process, thereby facilitating avoiding gaps in the coil winding and improving the tight fit of the coil winding.

Description

Technical Field

[0001] The invention relates to the technical field of transformer processing equipment, in particular to a dry-type transformer coil pressing processing device. Background Art

[0002] A dry-type transformer is a transformer whose core and winding are not immersed in insulating oil. Its winding is usually made of copper or aluminum wires and is usually wound with the help of a corresponding winding device.

[0003] The existing Chinese patent publication number is: CN213303895U, and the name of the patent is "A transformer coil winding device". The patent includes a bottom plate, a fixing frame is arranged on the top of the bottom plate, a rotating shaft is arranged inside the fixing frame, a winding roller is arranged outside the rotating shaft, a follower wheel is arranged at one end of the rotating shaft, a first bevel gear is arranged at the other end of the rotating shaft, a sliding member is arranged on one side of the fixing frame, and a limiting wheel is arranged at one end of the sliding member";

[0004] In the existing coil winding process, the winding position of the coil is mainly changed by the reciprocating movement of the rope guide in the axial direction of the coil, so as to achieve uniform winding of the coil on the reel. However, in actual applications, since the metal wire itself has a certain hardness, gaps are prone to appear in the wound coil, resulting in poor tight fit of the coil winding. The current common solution is to manually hit it with a wooden hammer to correct the gap before continuing to wind, which is inefficient. In order to solve the above problems, we propose a dry transformer coil pressing processing device. Summary of the invention

[0005] The object of the present invention is to provide a dry-type transformer coil pressing processing device to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A dry-type transformer coil pressing processing device comprises a horizontally arranged reel and a winding machine driving the reel to rotate, wherein the winding machine is provided with a pressure mechanism for winding and pressing the coil on the reel, and the pressure mechanism comprises:

[0008] A support assembly, comprising a track unit arranged parallel to the axis of the winding drum, both ends of the track unit being fixed on the winding machine through a support plate;

[0009] A pressing assembly, comprising a moving block unit adapted to slide on the track unit, the moving block unit being provided with a pressing unit, the pressing unit having a first pressing form and a second pressing form adapted to different directions of the coil winding arrangement;

[0010] The switching assembly comprises a convex rod unit movably mounted on the moving block unit, a tooth plate unit meshing with the pressing unit is fixed on the convex rod unit, and the pressing form of the pressing unit is switched when the convex rod unit moves on the moving block unit.

[0011] Preferably, the track unit comprises through openings opened on both sides of the moving block unit, and columns with ends fixed to the support plates are movably penetrated through the through openings.

[0012] Preferably, the column is an iron column, and a resistance adjustment unit is installed on the moving block unit.

[0013] Preferably, the moving block unit comprises a block body, an end of the block body is provided with a through cavity, and both ends of the through cavity are fixed with limit blocks.

[0014] Preferably, the pressing unit comprises a first opening and a second opening opened on the block, a first screw rod is movably inserted into the first opening, and a second screw rod is movably inserted into the second opening.

[0015] Preferably, the convex rod unit comprises two push rods movably penetrating the through-cavity, and the rod bodies of the push rods are connected to the toothed plate unit.

[0016] Preferably, the tooth plate unit includes a first tooth block located between the first screw rod and the limit block, and also includes a second tooth block located between the second screw rod and another limit block.

[0017] Preferably, a plurality of evenly distributed plug holes are formed on the surface of the support plate, a mounting block fixed to the column is provided on the side of the support plate, and pins adapted for plugging and mounting with the plug holes are fixed on the mounting block.

[0018] Preferably, the bottom ends of the first spiral rod and the second spiral rod are both truncated cone ends.

[0019] Preferably, elastic rubber pads are fixed to both ends of each push rod.

[0020] In the above technical scheme, the present invention provides a dry-type transformer coil pressing processing device, which can apply pressure to the coil in real time during the winding process by setting a pressure mechanism composed of a bracket assembly, a pressing assembly and a switching assembly, thereby facilitating avoiding gaps in the coil winding, improving the close fit of the coil winding, saving manpower, improving the coil winding efficiency and winding quality, having a high degree of automation, and having good practical significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is an overall schematic diagram of a dry-type transformer coil pressing processing device of the present invention;

[0023] Figure 2 It is a schematic diagram of a switching component of a dry-type transformer coil pressing processing device of the present invention in a through-hole;

[0024] Figure 3 A schematic diagram of a track unit of a dry-type transformer coil pressing processing device of the present invention;

[0025] Figure 4 It is a schematic transverse cross-sectional view of a block of a dry-type transformer coil pressing processing device of the present invention;

[0026] Figure 5 A vertical cross-sectional schematic diagram of a block of a dry-type transformer coil pressing and processing device according to the present invention;

[0027] Figure 6 It is a cross-sectional schematic diagram of a resistance adjustment unit of a dry-type transformer coil pressing processing device of the present invention on a block;

[0028] Figure 7 For the present invention Figure 2 The enlarged schematic diagram at A in the middle;

[0029] Figure 8 It is a partial schematic diagram of the shaft rotation unit of a dry-type transformer coil pressing processing device of the present invention on the inner side wall of the through cavity.

[0030] Description of reference numerals:

[0031] 1. Reel; 2. Winding machine; 3. Bracket assembly; 3.1. Track unit; 3.11. Through-hole; 3.12. Column; 3.2. Support plate; 3.21. Plug-in hole; 3.22. Mounting block; 3.23. Pin; 4. Pressing assembly; 4.1. Moving block unit; 4.11. Block; 4.12. Through-hole; 4.13. Stop block; 4.2. Pressing unit; 4.21. First through-hole; 4.22. Second through-hole; 4.23. First screw rod; 4.2 4. Second spiral rod; 5. Switching assembly; 5.1. Protruding rod unit; 5.11. Push rod; 5.12. Elastic rubber pad; 5.2. Tooth plate unit; 5.21. First tooth block; 5.22. Second tooth block; 6. Resistance adjustment unit; 6.1. Threaded rod; 6.2. Rubber block; 6.3. Knob block; 7. Shaft rotation unit; 7.1. Mounting hole; 7.2. Fan-shaped groove; 7.3. Core column; 7.4. Sliding block; 8. One-way ratchet structure; 8.1. Long rod; 8.2. Ratchet. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] See also Figure 1-8 The embodiment of the present invention provides a dry-type transformer coil pressing processing device, comprising a horizontally arranged reel 1 and a winding machine 2 driving the reel 1 to rotate, and the winding machine 2 is equipped with a pressure mechanism for winding and pressing the coil on the reel 1, and the pressure mechanism comprises:

[0034] The support assembly 3 includes a track unit 3.1 arranged parallel to the axis direction of the winding drum 1, and both ends of the track unit 3.1 are fixed on the winding machine 2 through a support plate 3.2;

[0035] A pressing assembly 4, comprising a moving block unit 4.1 adapted to slide on the track unit 3.1, a pressing unit 4.2 is mounted on the moving block unit 4.1, and the pressing unit 4.2 has a first pressing form and a second pressing form adapted to different directions of the coil winding arrangement;

[0036] The switching assembly 5 comprises a convex rod unit 5.1 movably mounted on the moving block unit 4.1, a tooth plate unit 5.2 meshing with the pressing unit 4.2 is fixed on the convex rod unit 5.1, and the pressing form of the pressing unit 4.2 is switched when the convex rod unit 5.1 moves on the moving block unit 4.1;

[0037] Specifically, the reel 1 can wind the metal wire on the body of the reel 1 when rotating. The metal wire is made of metal materials such as copper wire or aluminum wire. The winding machine 2 is an existing winding device, including a driving motor and a driving shaft adapted to the reel 1 for transmission installation. The wire arrangement device on the winding machine reciprocates the metal wire along the axial direction of the reel 1, for example, the metal wire is moved from the left end of the reel 1 to the right end of the reel 1, and this movement is the forward arrangement movement of the metal wire; and then the metal wire is moved from the right end of the reel 1 to the left end of the reel 1, and this movement is the reverse arrangement movement of the metal wire, so that the metal wire is evenly stacked and wound on the reel 1 to form a coil winding;

[0038] In actual use, when the metal wire is arranged and moved in the forward direction, the clamping unit 4.2 is in the first clamping state, and the clamping unit 4.2 in the first clamping state applies pressure to the winding position of the metal wire, so that the winding of the metal wire on the reel 1 is more tightly fitted, and at the same time, the moving block unit 4.1 moves along the track unit 3.1 in the same synchronous manner as the movement of the metal wire arrangement; when the metal wire is wound to the right end of the reel 1, the switching component 5 switches the clamping unit 4.2 to the second clamping state, and when the metal wire is arranged and moved in the reverse direction, the clamping unit 4.2 in the second clamping state applies pressure to the metal wire. The metal wire is in the winding position and pressure is applied thereto. Similarly, when the metal wire is wound to the left end of the reel 1, the switching component 5 switches the clamping unit 4.2 to the first clamping state. The clamping unit 4.2 in the first clamping state applies pressure to the metal wire in the winding position, and this cycle is repeated until the winding is completed. During the entire winding process, pressure can be applied to the coil in real time during the winding process, which is beneficial to avoid gaps in the coil winding, improve the close fit of the coil winding, save manpower, improve the coil winding efficiency and winding quality, have a high degree of automation, and have good practical significance.

[0039] In another embodiment provided by the present invention, the track unit 3.1 includes through openings 3.11 opened on both sides of the moving block unit 4.1, the number of the through openings 3.11 is two, and a column 3.12 whose end is fixed to the support plate 3.2 is movably penetrated in the through openings 3.11, and the axis of the column 3.12 is parallel to the horizontal plane, wherein the column 3.12 is an iron column, wherein the moving block unit 4.1 includes a block 4.11, and a through cavity 4.12 is opened at the end of the block 4.11, and limit blocks 4.13 are fixed at both ends of the through cavity 4.12;

[0040] The moving block unit 4.1 is provided with a resistance adjustment unit 6, which includes a threaded rod 6.1 screwed on the block body 4.11, the axis of the threaded rod 6.1 is perpendicular to the axis of the through hole 3.11, one end of the threaded rod 6.1 is located in the through hole 3.11, a rubber block 6.2 fixed to the threaded rod 6.1 is provided in the through hole 3.11, and a knob block 6.3 is fixed to the outer end of the threaded rod 6.1;

[0041] In actual use, the block 4.11 can move axially along the column 3.12 through the through-hole 3.11. The threaded rod 6.1 is rotated by rotating the knob block 6.3, thereby changing the distance between the rubber block 6.2 and the iron column 3.12. The closer the rubber block 6.2 is to the iron column 3.12, the greater the squeezing force between the block 4.11 and the column 3.12, and the greater the resistance to the axial movement of the block 4.11 through the through-hole 3.11 along the column 3.12. Conversely, the farther the rubber block 6.2 is from the iron column 3.12, the smaller the resistance to the movement of the block 4.11. Preferably, a groove adapted to the side of the column 3.12 is provided on the side of the rubber block 6.2 in contact with the column 3.12.

[0042] In another embodiment provided by the present invention, the pressing unit 4.2 includes a first opening 4.21 and a second opening 4.22 opened on the block 4.11, the shortest connecting line between the center of the first opening 4.21 and the center of the second opening 4.22 is parallel to the axis of the cylinder 3.12, a first screw rod 4.23 is movably inserted in the first opening 4.21, and a second screw rod 4.24 is movably inserted in the second opening 4.22; the second screw rod 4.24 is parallel to the axis of the first screw rod 4.23, the second screw rod 4.24 and the first screw rod 4.23 have the same specifications and dimensions, the axis of the second screw rod 4.24 and the first screw rod 4.23 are both perpendicular to the axis of the reel 1, the second screw rod 4.24 and the first screw rod 4.23 can both move axially, and the bottom ends of the first screw rod 4.23 and the second screw rod 4.24 are both truncated cone ends;

[0043] Furthermore, the convex rod unit 5.1 includes two push rods 5.11 that are movable through the through-hole 4.12, the rod body of the push rod 5.11 is connected to the tooth plate unit 5.2, and elastic rubber pads 5.12 are fixed at both ends of each push rod 5.11, wherein the tooth plate unit 5.2 includes a first tooth block 5.21 located between the first spiral rod 4.23 and the limit block 4.13, and also includes a second tooth block 5.22 located between the second spiral rod 4.24 and another limit block 4.13, and the first tooth block 5.21 can The first screw rod 4.23 can be meshed with a worm, and the second screw rod 4.24 can be meshed with a second tooth block 5.22. It should be further explained that when the first tooth block 5.21 is meshed with the first screw rod 4.23, the second screw rod 4.24 and the second tooth block 5.22 are in a completely separated state; similarly, when the second screw rod 4.24 is meshed with the second tooth block 5.22, the first tooth block 5.21 is in a completely separated state from the first screw rod 4.23.

[0044] It should be noted that the first tooth block 5.21 and the second tooth block 5.22 are both tooth column structures, specifically worm gear column structures, the second screw rod 4.24 and the first screw rod 4.23 are preferably worms, and both ends of the first tooth block 5.21 and the second tooth block 5.22 are rotationally restrictedly connected to the push rod 5.11 through the shaft rotation unit 7, and the shaft rotation unit 7 includes a mounting hole 7.1 opened on the side of the push rod 5.11, and a fan-shaped groove 7 is opened on the inner wall of the mounting hole 7.1. .2, the center of the fan-shaped groove 7.2 coincides with the center of the mounting hole 7.1, the center angle of the fan-shaped groove 7.2 is 30 degrees to 270 degrees, and the preferred center angle of the fan-shaped groove 7.2 is 175 degrees, the two ends of the fan-shaped groove 7.2 are respectively a left end face and a right end face, the end of the second spiral rod 4.24 and the end of the first spiral rod 4.23 are both fixed with a stem 7.3 that is rotatably plugged into the mounting hole 7.1, and a slider 7.4 fixed to the stem 7.3 is slidably adapted in the fan-shaped groove 7.2;

[0045] In actual use, for example, when the metal wire is arranged and moved in the forward direction, when the clamping unit 4.2 is in the first clamping state, the first tooth block 5.21 is meshed with the first spiral rod 4.23, and the axial movement of the first spiral rod 4.23 is limited. The bottom end of the first spiral rod 4.23 limits the top surface of the metal wire in the winding position to ensure that the metal wire is tightly fitted with the winding surface. At the same time, the second spiral rod 4.24 is separated from the second tooth block 5.22, and the side surface of the rod body of the second spiral rod 4.24 limits the side surface of the metal wire in the winding position. At the same time, since the metal wire is wound as the reel 1 rotates, the second spiral rod 4.24 in contact with the side surface of the metal wire also rotates axially;

[0046] When the metal wire is wound to the right end of the reel 1, the right end of the push rod 5.11 is squeezed by the support plate 3.2 located on the right side, so that under the reaction force of the support plate 3.2, the push rod 5.11 moves relatively to the left in the through cavity 4.12, and the first tooth block 5.21 is separated from the first spiral rod 4.23, that is, the first tooth block 5.21 and the first spiral rod 4.23 are switched from the meshing state to the separation state, and at the same time, the second tooth block 5.22 also moves relatively toward the second spiral rod 4.24. In this process, when the second tooth block 5.22 is in a rolling state on the inner bottom wall of the through cavity 4.12, the core column 7.3 is driven to rotate, and when the slider 7.4 is in contact with the left end surface of the fan-shaped groove 7.2, the second spiral rod 4.24 is meshed with the second tooth block 5.22;

[0047] It should be noted that when the second tooth block 5.22 moves relatively away from the second screw rod 4.24, the second tooth block 5.22 is in a sliding state on the inner bottom wall of the through cavity 4.12;

[0048] Since the second screw rod 4.24 is in contact with the side surface of the metal wire, the second screw rod 4.24 in the rotating state is meshed with the second tooth block 5.22, so that the second screw rod 4.24 moves away from the winding drum 1 in the first stage. During this process, the slider 7.4 is always in contact with the left end surface of the fan-shaped groove 7.2.

[0049] When the second spiral rod 4.24 is completely separated from the side of the metal wire, the second spiral rod 4.24 stops rotating, and the bottom end of the second spiral rod 4.24 is flush with the bottom end of the first spiral rod 4.23. At this time, the bottom end of the second spiral rod 4.24 is directly opposite to the winding end position of the metal wire on the reel 1. Therefore, when the metal wire is wound to the second layer at this position, the coils of the metal wire are superimposed. At this time, the bottom end of the second spiral rod 4.24 is pushed by the superimposed winding of the metal wire, and the second spiral rod 4.24 moves away from the reel 1 in the second stage. In this process, due to the second tooth block 5 .22 is in meshing state with the second spiral rod 4.24, so the second tooth block 5.22 turns over with the axial movement of the second spiral rod 4.24 until the slider 7.4 contacts the right end face of the fan-shaped groove 7.2. At this time, the second tooth block 5.22 is in a locked state, and the metal wire is also switched from the forward arrangement movement to the reverse arrangement movement. The bottom end of the second spiral rod 4.24 contacts the top of the metal wire in the winding state, and the side of the first spiral rod 4.23 contacts the side of the metal wire. At this time, the switching component 5 completes the switching of the clamping unit 4.2 from the first clamping state to the second clamping state;

[0050] Similarly, when the reverse arrangement movement of the metal wire is switched to the forward arrangement movement process, and the switching component 5 completes the process of switching the clamping unit 4.2 from the second clamping state to the first clamping state, the process is the same as the above process and will not be repeated.

[0051] In another embodiment provided by the present invention, a one-way ratchet structure 8 is provided on the inner bottom wall of the through-hole 4.12, and the one-way ratchet structure 8 comprises a long bar 8.1 whose length direction line is parallel to the axis line of the column 3.12, and a plurality of ratchets 8.2 are elastically hinged on the long bar 8.1, and each ratchet 8.2 is in a tilted state in a natural state, and each ratchet 8.2 is in an avoidance state below the top surface of the long bar 8.1 when the back of the ratchet 8.2 is under pressure;

[0052] When the second tooth block 5.22 moves relatively away from the second screw rod 4.24, the second tooth block 5.22 is in a sliding state on the inner bottom wall of the through-cavity 4.12, and the second tooth block 5.22 is in contact and extrusion with the ratchet 8.2, and the one-way ratchet structure 8 does not engage with the second tooth block 5.22 in the away state; when the second tooth block 5.22 moves relatively toward the second screw rod 4.24, the second tooth block 5.22 is engaged with the ratchet 8.2, so that the second tooth block 5.22 is in a rolling state on the inner bottom wall of the through-cavity 4.12.

[0053] In another embodiment provided by the present invention, a plurality of evenly distributed plug holes 3.21 are provided on the surface of the support plate 3.2, and the axis line of each plug hole 3.21 is parallel to the axis line of the column 3.12. A mounting block 3.22 fixed to the column 3.12 is provided on the side of the support plate 3.2, and a pin 3.23 adapted to be plugged and installed with the plug holes 3.21 is fixed on the mounting block 3.22. In actual use, the mounting block 3.22 can adjust the distance between the column 3.12 and the reel 1 by plugging the pin 3.23 with the plug holes 3.21 at different positions, so as to facilitate adaptation to the reel 1 of different diameter specifications, facilitate adjustment, and improve adaptability.

[0054] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A dry-type transformer coil pressing processing device, comprising a horizontally arranged reel (1) and a winding machine (2) for driving the reel (1) to rotate, characterized in that: The winding machine (2) is provided with a pressure mechanism for winding and pressing the coil on the reel (1), and the pressure mechanism comprises: A support assembly (3), comprising a track unit (3.1) arranged parallel to the axis direction of the winding drum (1), wherein both ends of the track unit (3.1) are fixed on the winding machine (2) via a support plate (3.2); A pressing assembly (4), comprising a moving block unit (4.1) adapted to slide on a track unit (3.1), a pressing unit (4.2) being mounted on the moving block unit (4.1), the pressing unit (4.2) having a first pressing form and a second pressing form adapted to different directions of coil winding arrangement; A switching assembly (5) comprises a convex rod unit (5.1) movably mounted on a moving block unit (4.1), a tooth plate unit (5.2) meshing with a pressing unit (4.2) being fixed on the convex rod unit (5.1), and the pressing form of the pressing unit (4.2) is switched when the convex rod unit (5.1) moves on the moving block unit (4.1).

2. A dry-type transformer coil pressing processing device according to claim 1, characterized in that: The track unit (3.1) comprises through openings (3.11) opened on both sides of the moving block unit (4.1), and columns (3.12) whose ends are fixed to the support plate (3.2) are movably penetrated in the through openings (3.11).

3. A dry-type transformer coil pressing processing device according to claim 2, characterized in that: The column (3.12) is an iron column, and a resistance adjustment unit (6) is installed on the moving block unit (4.1).

4. A dry-type transformer coil pressing processing device according to claim 2, characterized in that: The movable block unit (4.1) comprises a block body (4.11), a through cavity (4.12) is provided at the end of the block body (4.11), and limit blocks (4.13) are fixed at both ends of the through cavity (4.12).

5. A dry-type transformer coil pressing processing device according to claim 4, characterized in that: The pressing unit (4.2) comprises a first opening (4.21) and a second opening (4.22) opened on the block (4.11); a first screw rod (4.23) is movably inserted into the first opening (4.21); and a second screw rod (4.24) is movably inserted into the second opening (4.22).

6. A dry-type transformer coil pressing processing device according to claim 5, characterized in that: The convex rod unit (5.1) comprises two push rods (5.11) movably penetrating the through-hole (4.12), and the rod bodies of the push rods (5.11) are connected to the toothed plate unit (5.2).

7. A dry-type transformer coil pressing processing device according to claim 6, characterized in that: The tooth plate unit (5.2) comprises a first tooth block (5.21) located between a first screw rod (4.23) and a limit block (4.13), and also comprises a second tooth block (5.22) located between a second screw rod (4.24) and another limit block (4.13).

8. The dry-type transformer coil pressing processing device according to claim 2 is characterized in that: The support plate (3.2) is provided with a plurality of evenly distributed plug holes (3.21) on its surface, a mounting block (3.22) fixed to the column (3.12) is provided on the side of the support plate (3.2), and a pin column (3.23) adapted to be plugged and installed with the plug holes (3.21) is fixed to the mounting block (3.22).

9. The dry-type transformer coil pressing processing device according to claim 7 is characterized in that: The bottom ends of the first spiral rod (4.23) and the second spiral rod (4.24) are both truncated cone ends.

10. The dry-type transformer coil pressing processing device according to claim 9, characterized in that: Elastic rubber pads (5.12) are fixed at both ends of each push rod (5.11).

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