Double-station constant-tension discharging device for transformer coil production

Abstract

The utility model discloses a transformer coil production double-station constant tension feeding device, including base, traversing device and feeding device, the traversing device is arranged on the base and is used for driving the feeding device to move, the number of the feeding device is two, and the feeding device is both arranged on the traversing device. The tension assembly comprises a tension frame, an air cylinder, a connecting rod, a swing rod, a connecting block, a guide wheel, a connecting shaft and a position sensor, and the tension frame is arranged on the transverse moving device. A tension assembly is arranged at the discharging end, a position sensor and an air cylinder are matched to work to adjust a swing rod to swing in the walking direction of the varnished wire or in the direction opposite to the walking direction of the varnished wire, the tension of the varnished wire at the discharging end is adjusted, and it is guaranteed that the tension of the varnished wire between the discharging device and the wire arranging device is constant; and the winding quality of the coil is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer coil production equipment, in particular to a double-station constant-tension wire-feeding device for transformer coil production. Background Art

[0002] With the continuous growth of electricity consumption in China, the development of the distribution transformer industry in China has also increased day by day. When winding the coils of distribution transformers, it is necessary to first introduce the raw material enameled wire into the winding area. In order to ensure the constant tension of the enameled wire during the production process, a constant-tension device is generally set. In the prior art, the constant-tension device is generally set together with the wire arranging device to ensure the quality of coil winding. However, during the winding process, the tension at the wire-feeding end, that is, the end of the enameled wire raw material, will also be inconsistent. If the tension is too large, the enameled wire is likely to be thinned and its diameter becomes smaller. If the tension is too small, the enameled wire is likely to be loose, or even jump out of the raw material tray. Eventually, it affects the coil winding. Summary of the Invention

[0003] (1) Technical Problems to be Solved

[0004] The technical problem to be solved by the utility model is that in the prior art, the constant-tension device is generally set together with the wire arranging device to ensure the quality of coil winding. However, during the winding process, the tension at the wire-feeding end, that is, the end of the enameled wire raw material, will also be inconsistent. If the tension is too large, the enameled wire is likely to be thinned and its diameter becomes smaller. If the tension is too small, the enameled wire is likely to be loose, or even jump out of the raw material tray. Eventually, it affects the coil winding.

[0005] (2) Technical Solutions

[0006] To solve the above problems, the utility model provides the following technical solutions:

[0007] A double-station constant-tension wire-feeding device for transformer coil production, comprising a base, a transverse movement device and a wire-feeding device. The transverse movement device is arranged on the base and is used to drive the wire-feeding device to move. Two groups of wire-feeding devices are arranged on the transverse movement device;

[0008] The wire-feeding device comprises a wire-feeding tray, a wire-feeding motor, a tray support column and a tension assembly. The tray support column is arranged on the transverse movement device. The rotating shaft of the wire-feeding motor passes through the tray support column and is connected to the wire-feeding tray to provide rotational power for the wire-feeding tray. And the shell of the wire-feeding motor is fixedly connected to the tray support column. The tray support column is in the structure of a rectangular square tube with a hollow interior;

[0009] The tension assembly includes a tension frame, a cylinder, a connecting rod, a swing rod, a connecting block, a guide wheel, a connecting shaft, and a position sensor. The tension frame is arranged on the transverse movement device, and the tail of the cylinder is movably connected to the tension frame through a cylinder connecting seat. The telescopic rod of the cylinder is fixedly connected to one end of the connecting rod, and the other end of the connecting rod is movably connected to the outer side of the swing rod. The connecting block is cylindrical, and both ends thereof are connected to the disc support column through bearings. The swing rod is fixedly arranged on the connecting block and can swing as the connecting block rotates. The connecting shaft and the guide wheel are connected through a bearing, and one end of the connecting shaft close to the swing rod is fixedly connected to the swing rod. The position sensor is arranged on the cylinder.

[0010] Further, the transverse movement device includes a transverse movement motor, a transmission lead screw pair, a linear guide rail pair, and a connecting bottom plate. The linear guide rail pair has a set respectively arranged on both sides of the upper end surface of the base. The sliders on the two linear guide rail pairs are fixedly connected to the connecting bottom plate. The transmission lead screw pair is arranged on the base, and the lead screw nut seat on the transmission lead screw pair is fixedly connected to the connecting bottom plate. The transverse movement motor is connected to the transmission lead screw on the transmission lead screw pair through a coupling to provide rotational power for it.

[0011] Further, the heights of the two feeding devices are set differently, that is, the overall height of one of the feeding devices is lower than that of the other feeding device.

[0012] Further, a first top block and a second top block are arranged on the main shaft of the feeding motor. The first top block is fixedly arranged on the main shaft of the feeding motor, and the second top block is movably arranged on the main shaft of the feeding motor. The feeding disc is arranged between the first top block and the second top block, and a locking handle is arranged on one side of the second top block. The locking handle is connected to the rotating shaft of the feeding motor through a threaded connection method.

[0013] Further, a fixing plate is also arranged between the second top block and the locking handle. One end of the fixing plate is circular, and the other end is rectangular with a hollowed-out waist-shaped hole in the middle. The circular end of the fixing plate is sleeved on the main shaft of the feeding motor.

[0014] Further, threaded holes are arranged on the feeding disc, and connecting bolts are also arranged on the fixing plate. The threaded part of the connecting bolt passes through the hollowed-out waist-shaped hole and is connected to the threaded hole.

[0015] Further, the base is placed on a horizontal place and is provided with four fixing corners for fixing it on the horizontal ground.

[0016] Further, an avoidance opening is provided on the upper end surface of the base.

[0017] (III) Advantageous Effects

[0018] The advantageous effects of the present utility model are as follows:

[0019] A tension assembly is provided at the feeding end. By the cooperation of the position sensor and the cylinder, the swing rod is adjusted to swing in the direction of the enameled wire walking or in the direction opposite to the enameled wire walking, so as to adjust the tension of the enameled wire at the feeding end, ensure the constant tension of the enameled wire between the feeding device and the wire arranging device, and further improve the winding quality of the coil. Description of the Drawings

[0020] Figure 1 is a perspective view of the present utility model;

[0021] Figure 2 is a partial structural schematic diagram of the feeding device of the present utility model;

[0022] Figure 3 is a sectional view of the present utility model;

[0023] Figure 4 is Figure 3 the enlarged view at A in

[0024] Figure 5 is a structural schematic diagram of the tension assembly of the present utility model.

[0025] Markings in the figure: 1 - base, 2 - transverse movement device, 3 - feeding device;

[0026] 2a - transverse movement motor, 2b - transmission screw pair, 2c - linear guide pair, 2d - connecting base plate;

[0027] 3a - feeding disk, 3b - feeding motor, 3c - disk support column, 3d - tension assembly, 3e - first top block, 3f - second top block, 3h - locking handle, 3j - fixing plate, 3k - hollow waist-shaped hole, 3m - connecting bolt, 3n - threaded hole;

[0028] 3da - tension frame, 3db - cylinder, 3dc - connecting rod, 3dd - swing rod, 3de - connecting block, 3df - guide wheel, 3dh - connecting shaft, 3dg - position sensor. Detailed Embodiment

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model.

[0031] Please refer to Figures 1-5 A double-station constant-tension unwinding device for transformer coil production shown in the figure, which includes a base 1, a transverse movement device 2 and an unwinding device 3. The transverse movement device 2 is arranged on the base 1 to drive the unwinding device 3 to move, and two sets of unwinding devices 3 are arranged on the transverse movement device 2. The heights of the two unwinding devices 3 are different, that is, the overall height of one unwinding device 3 is lower than that of the other unwinding device 3. Arranging the unwinding device 3 in this way can realize the simultaneous winding of two coils or reduce the replacement time of the raw materials for coil winding, and reduce the time-consuming for replacing raw materials.

[0032] The unwinding device 3 includes an unwinding disc 3a, an unwinding motor 3b, a disc support column 3c and a tension assembly 3d. The disc support column 3c is arranged on the transverse movement device 2. The rotating shaft of the unwinding motor 3b passes through the disc support column 3c and is connected to the unwinding disc 3a to provide rotational power for the unwinding disc 3a. And the housing of the unwinding motor 3b is fixedly connected to the disc support column 3c. The disc support column 3c has a rectangular square tube structure with a hollow interior.

[0033] The unwinding disc 3a is arranged on one side of the disc support column 3c, and its rotation power is provided by the unwinding motor 3b.

[0034] The tension assembly 3d includes a tension frame 3da, a cylinder 3db, a connecting rod 3dc, a swing rod 3dd, a connecting block 3de, a guide wheel 3df, a connecting shaft 3dh, and a position sensor 3dg. The tension frame 3da is arranged on the transverse movement device 2, and the tail of the cylinder 3db is movably connected to the tension frame 3da through a cylinder 3db connecting seat. The telescopic rod of the cylinder 3db is fixedly connected to one end of the connecting rod 3dc. The other end of the connecting rod 3dc is movably connected to the outer side of the swing rod 3dd. The connecting block 3de is cylindrical, and its two ends are connected to the bobbin support column 3c through bearings. The swing rod 3dd is fixedly arranged on the connecting block 3de and can swing as the connecting block 3de rotates. The connecting shaft 3dh and the guide wheel 3df are connected through a bearing, and one end of the connecting shaft 3dh close to the swing rod 3dd is fixedly connected to the swing rod 3dd. The position sensor 3dg is arranged on the cylinder 3db.

[0035] The position sensor 3dh and the cylinder 3db on the tension assembly 3d are both electrically connected to an external control device. The control device uses a PLC controller. At the same time, the unwinding motor 3b that provides rotational power for the unwinding reel 3a is also electrically connected to the external controller. When the tension of the enameled wire is too large, the distance between the position sensor 3dh itself and the piston rod of the cylinder 3db is detected. If the distance is greater than the parameter set in the controller, it indicates that the tension of the enameled wire is relatively large, and there is a risk that the enameled wire will be stretched. At this time, the detection signal of the position sensor 3dh is transmitted to the controller, and the controller sends an instruction to the unwinding motor 3b to increase the rotation speed of the unwinding motor 3b and reduce the tension on the enameled wire. At the same time, the telescopic rod of the cylinder 2db extends further, and the swing rod 3dd is pushed by the connecting rod 3dc to rotate appropriately in the direction of the enameled wire movement, reducing the supporting force of the guide wheel 3df on the enameled wire, thereby reducing the final tension received by the enameled wire.

[0036] When the position sensor 3dh detects that the distance between the remaining piston rod is less than the set parameter, it indicates that the tension of the enameled wire is too small at this time, and there is a risk that the enameled wire will be slack or even jump out of the reel. After receiving the signal of the position sensor 3dh, the controller controls the unwinding motor 3b to reduce the rotation speed, so that the enameled wire is in a tightened state to avoid the enameled wire from being too slack. At this time, the telescopic rod of the cylinder 3dh retracts, and the swing rod 3dd is pulled by the connecting rod 3dc to deflect in the direction opposite to the movement of the enameled wire, increasing the supporting force of the guide wheel 3df on the enameled wire, and thus increasing the tension received by the enameled wire.

[0037] Specifically, the transverse movement device 2 includes a transverse movement motor 2a, a transmission lead screw pair 2b, a linear guide pair 2c, and a connecting base plate 2d. The linear guide pair 2c has a set respectively arranged on both sides of the upper end surface of the base 1. The sliders on the two linear guide pairs 2c are fixedly connected to the connecting base plate 2d. The transmission lead screw pair 2b is arranged on the base 1, and the lead screw nut seat on the transmission lead screw pair 2b is fixedly connected to the connecting base plate 2d. The transverse movement motor 2a is connected to the transmission lead screw on the transmission lead screw pair 2b through a coupling to provide rotational power for it.

[0038] In this embodiment, the transverse movement motor 2a is connected to the transmission lead screw on the transmission lead screw pair 2b through a coupling to provide rotational power. Then, the lead screw nut seat on the transmission lead screw pair 2b is connected to the connecting base plate 2b. Furthermore, the connecting base plate 2b can perform a linear movement driven by the lead screw nut seat. The connection between the sliders on the two linear guide pairs 2c and the connecting base plate 2d further improves the stability during its movement.

[0039] Specifically, a first top block 3e and a second top block 3f are provided on the main shaft of the feeding motor 3b. The first top block 3e is fixedly arranged on the main shaft of the feeding motor 3b, and the second top block 3f is movably arranged on the main shaft of the feeding motor 3b. The feeding tray 3a is arranged between the first top block 3e and the second top block 3f, and a locking handle 3h is provided on one side of the second top block 3f. The locking handle 3h is connected to the rotating shaft of the feeding motor 3b by a threaded connection method.

[0040] In this embodiment, the second top block 3f is movably arranged on the main shaft of the feeding motor 3b. After the staff places the raw material coil filled with enameled wire on the main shaft, then install the second top frame 3f to make the feeding tray 3a abut against the first top block 3e. This way of installing the feeding tray 3a is relatively simple and fast.

[0041] Specifically, a fixing plate 3j is also provided between the second top block 3f and the locking handle 3h. One end of the fixing plate 3j is circular, and the other end is rectangular with a hollow waist-shaped hole 3k in the middle. The circular end of the fixing plate 3j is sleeved on the main shaft of the feeding motor 3b. A threaded hole 3n is provided on the feeding tray 3a, and a connecting bolt 3m is also provided on the fixing plate 3j. The threaded part of the connecting bolt 3m passes through the hollow waist-shaped hole 3k and is connected to the threaded hole 3n.

[0042] In this embodiment, the fixed plate 3j is provided to further fix the material feeding tray 3a. Specifically, after the material feeding tray 3a is installed on the main shaft of the material feeding motor 3b and abuts against the first top block 3e, it is fixedly connected by using the fixing connection bolt 3m through the connection method of the hollow waist-shaped hole 3k and the threaded hole 3n to prevent the axial movement of the material feeding tray 3a. At the same time, the second top block 3f, the fixed plate 3j, the material feeding tray 3a and the first top block 3e are further tightly abutted by the locking handle 3h, and the installation of the material feeding tray 3a is completed.

[0043] Specifically, the base 1 is placed on a horizontal place and is provided with four fixing corners for fixing it on the horizontal ground. An avoidance opening is provided on the upper end surface of the base 1.

[0044] In this embodiment, setting the fixing corners on the base 1 facilitates the installation and fixing of the equipment, and at the same time, it sets the avoidance for the movement of the material feeding device 3.

[0045] Working principle: First, the staff installs the material feeding tray 3a, and after connecting the traction and winding device with the operation manual of the enameled wire installation, the equipment is started. The winding device recorded here is the equipment required for the winding of the transformer coil, which belongs to the prior art and is not described in detail here. When the pulling force of the enameled wire is too large, the distance between the position sensor 3dh itself and the piston rod of the cylinder 3db is detected. If the distance is greater than the parameter set in the controller, it indicates that the pulling force of the enameled wire is relatively large, and there is a risk that the enameled wire is stretched. At this time, the detection signal of the position sensor 3dh is transmitted to the controller, and the controller sends an instruction to the material feeding motor 3b to increase the rotation speed of the material feeding motor 3b and reduce the pulling force on the enameled wire. At the same time, the telescopic rod of the cylinder 2db further extends, and the swing rod 3dd is pushed by the connecting rod 3dc to rotate appropriately in the direction of the enameled wire walking, reducing the supporting force of the guide wheel 3df on the enameled wire, thereby reducing the final pulling force received by the enameled wire.

[0046] When the position sensor 3dh detects that the distance between the remaining piston rods is less than the set parameter, it indicates that the pulling force of the enameled wire is too small at this time, and there is a risk that the enameled wire is loose or even jumps out of the material tray. After receiving the signal of the position sensor 3dh, the controller controls the material feeding motor 3b to reduce the rotation speed to keep the enameled wire in a tightened state and avoid the enameled wire from being too loose. At this time, the telescopic rod of the cylinder 3dh retracts, and the swing rod 3dd is pulled by the connecting rod 3dc to deflect in the direction opposite to the walking direction of the enameled wire, increasing the supporting force of the guide wheel 3df on the enameled wire, and thus increasing the pulling force received by the enameled wire.

[0047] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved. In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A double-station constant-tension feeding device for transformer coil production, characterized in that, It includes a base (1), a transverse movement device (2) and a feeding device (3). The transverse movement device (2) is arranged on the base (1) and used to drive the feeding device (3) to move. There are two groups of the feeding devices (3), both of which are arranged on the transverse movement device (2). The feeding device (3) includes a feeding tray (3a), a feeding motor (3b), a tray support column (3c) and a tension assembly (3d). The tray support column (3c) is arranged on the transverse movement device (2). The rotating shaft of the feeding motor (3b) passes through the tray support column (3c) and is connected to the feeding tray (3a) to provide rotational power for the feeding tray (3a). And the housing of the feeding motor (3b) is fixedly connected to the tray support column (3c). The tray support column (3c) is in the structure of a rectangular square tube with a hollow interior. The tension assembly (3d) includes a tension frame (3da), a cylinder (3db), a connecting rod (3dc), a swing rod (3dd), a connecting block (3de), a guide wheel (3df), a connecting shaft (3dh) and a position sensor (3dg). The tension frame (3da) is arranged on the transverse movement device (2). And the tail of the cylinder (3db) is movably connected to the tension frame (3da) through a cylinder (3db) connecting seat. The telescopic rod of the cylinder (3db) is fixedly connected to one end of the connecting rod (3dc). The other end of the connecting rod (3dc) is movably connected to the outer side surface of the swing rod (3dd). The connecting block (3de) is cylindrical, and its two ends are connected to the tray support column (3c) through bearings. The swing rod (3dd) is fixedly arranged on the connecting block (3de) and can swing along with the rotation of the connecting block (3de). The connecting shaft (3dh) and the guide wheel (3df) are connected through a bearing. And one end of the connecting shaft (3dh) close to the swing rod (3dd) is fixedly connected to the swing rod (3dd). The position sensor (3dg) is arranged on the cylinder (3db).

2. The double-station constant-tension unwinding device for the production of transformer coils according to claim 1, characterized in that: The transverse movement device (2) includes a transverse movement motor (2a), a transmission screw pair (2b), a linear guide rail pair (2c) and a connecting bottom plate (2d). There is a group of the linear guide rail pairs (2c), which are respectively arranged on both sides of the upper end surface of the base (1). The sliders on the two linear guide rail pairs (2c) are fixedly connected to the connecting bottom plate (2d). The transmission screw pair (2b) is arranged on the base (1). And the screw nut seat on the transmission screw pair (2b) is fixedly connected to the connecting bottom plate (2d). The transverse movement motor (2a) is connected to the transmission screw on the transmission screw pair (2b) through a coupling to provide rotational power for it.

3. A double-station constant-tension unwinding device for the production of transformer coils according to claim 1, characterized in that: The heights of the two feeding devices (3) are different, that is, the overall height of one of the feeding devices (3) is lower than that of the other feeding device (3).

4. A double-station constant-tension unwinding device for the production of transformer coils according to claim 1, characterized in that: A first top block (3e) and a second top block (3f) are provided on the main shaft of the feeding motor (3b). The first top block (3e) is fixedly arranged on the main shaft of the feeding motor (3b), and the second top block (3f) is movably arranged on the main shaft of the feeding motor (3b). The feeding tray (3a) is arranged between the first top block (3e) and the second top block (3f), and a locking handle (3h) is provided on one side of the second top block (3f). The locking handle (3h) is connected to the rotating shaft of the feeding motor (3b) by a threaded connection.

5. A double-station constant-tension unwinding device for transformer coil production according to claim 4, characterized in that: A fixing plate (3j) is further provided between the second top block (3f) and the locking handle (3h). One end of the fixing plate (3j) is circular, and the other end is rectangular with a hollow waist-shaped hole (3k) in the middle. The circular end of the fixing plate (3j) is sleeved on the main shaft of the feeding motor (3b).

6. The double-station constant-tension unwinding device for the production of transformer coils according to claim 5, characterized in that: Threaded holes (3n) are provided on the feeding tray (3a), and connection bolts (3m) are further provided on the fixing plate (3j). The threaded part of the connection bolt (3m) passes through the hollow waist-shaped hole (3k) and is connected to the threaded hole (3n).

7. A double-station constant-tension unwinding device for the production of transformer coils according to claim 1, characterized in that: The base (1) is placed on a horizontal surface and is provided with four fixing corners for fixing it to the horizontal ground.

8. A double-station constant-tension feeding device for transformer coil production according to claim 1, characterized in that, An avoidance opening is provided on the upper end surface of the base (1).

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