Capacitor film winding and tensioning device based on PLC

Abstract

The utility model relates to the technical field of tensioning devices, and discloses a PLC-based capacitor film winding and tensioning device, which comprises a placement frame, the number of the guiding assemblies is two, the two guiding assemblies are arranged at the two ends of the containing frame, each guiding assembly comprises a mounting frame and a guiding part arranged on the mounting frame, and the guiding parts are in rolling fit with the capacitor film; the adjusting assembly is arranged on the placing frame, the adjusting assembly is located between the two guide assemblies, the adjusting assembly comprises a telescopic part rotationally arranged on the placing frame, a driving unit used for driving the telescopic part to rotate and a roller-shaped tension sensor arranged at the bottom end of the telescopic part, and the roller-shaped tension sensor is in rolling fit with the capacitor film. A PLC control unit is installed on the placing frame, and the roller-shaped tension sensor, the PLC control unit and the driving unit are electrically connected. The capacitor film winding device has the effect of improving the capacitor film winding effect.

Description

Technical Field

[0001] The present application relates to the technical field of tensioning devices, and in particular to a capacitor film winding tensioning device based on PLC. Background Art

[0002] Film capacitors use metal foil as electrodes, overlapped with plastic films such as polyethylene, polypropylene, polystyrene, or polycarbonate, and then wound into a cylindrical structure. Depending on the type of plastic film, they are referred to as polyethylene capacitors, polypropylene capacitors, polystyrene capacitors, and polycarbonate capacitors. During the capacitor production process, the finished film is wound to improve its performance.

[0003] There is a Chinese patent with authorization announcement number CN208580670U, which discloses a capacitor film winder, including a chassis and a base. The chassis is fixedly welded to one side of the base. A winding barrel is provided on one side of the chassis, and the winding barrel is fixedly welded to the base through a support rod. A motor is installed in the chassis, and the output shaft of the motor is connected to a disc embedded in one end of the winding barrel. A connecting rod is provided in the winding barrel, and one end of the connecting rod is engaged with the disc, and the other end of the connecting rod passes through the winding barrel and is fixedly connected to the handle. A rectangular groove is provided on the side of the winding barrel, and a shear is provided at the bottom end of the winding barrel, and the shear is installed in the chassis. A switch and a display screen are installed on the side of the chassis, and a PLC controller is installed in the chassis.

[0004] When the capacitor film winder mentioned above is winding the capacitor film, the capacitor film is fixed on the connecting rod by a buckle, and then the connecting rod is placed in the winding barrel, and the capacitor film enters the winding barrel through the rectangular slot. At this time, the switch is turned on, and the motor is controlled by the PLC controller. The output shaft of the motor drives the disc to rotate, and then the disc drives the connecting rod engaged with it to rotate, thereby driving the capacitor film to rotate. After winding to a certain extent, the shear is controlled to work and the capacitor film is cut from the rectangular slot. Finally, the motor and the shear are turned off, and the wound capacitor film is pulled out together with the connecting rod through the handle. The whole process of winding the capacitor film is completed; by providing a pressing block, when the winder is working, the capacitor film is wound in the winding barrel. When it is rolled to a certain limit, the film will touch the pressing block. Under the squeezing of the pressing block, the generation of bubbles in the winding process is effectively avoided, making the wound capacitor film tighter and more fitted; by providing a buckle, the capacitor film can be fixed on the connecting rod, making it easier to be wound and enhancing its practicality; by providing a protective shell, it can block the resistance at the opening of a part of the rectangular slot when the winder is winding, and can protect the capacitor film from being scratched.

[0005] However, when the above-mentioned capacitor film winder is used to wind the capacitor film, the diameter of the capacitor film gradually increases during the winding process. When the speed of the motor remains constant, the tension on the capacitor film gradually increases, and the capacitor film may be easily torn during the winding process. Utility Model Content

[0006] In order to improve the effect of winding capacitor film, the present application provides a capacitor film winding and tensioning device based on PLC.

[0007] The present application provides a PLC-based capacitor film winding and tensioning device that adopts the following technical solutions:

[0008] A PLC-based capacitor film winding and tensioning device, the tensioning device is used to adjust the tension of the wound capacitor film, the tensioning device comprising:

[0009] Placement rack;

[0010] A guide assembly, wherein two guide assemblies are provided, and the two guide assemblies are installed at both ends of the placement frame, each guide assembly includes a mounting frame and a guide portion installed on the mounting frame, and the guide portion and the capacitor film are in rolling engagement;

[0011] An adjustment component is mounted on the placement rack, and the adjustment component is located between the two guide components. The adjustment component includes a telescopic part rotatably mounted on the placement rack, a driving unit for driving the telescopic part to rotate, and a roller-shaped tension sensor mounted on the bottom end of the telescopic part. The roller-shaped tension sensor and the capacitive film are in rolling cooperation. A PLC control unit is installed on the placement rack, and the roller-shaped tension sensor, the PLC control unit and the driving unit are electrically connected.

[0012] Optionally, the placement rack includes a base, a support plate vertically mounted on the base, and a fixed block mounted on the top of the support block, and the guide assembly and the adjustment assembly are both mounted on the fixed block.

[0013] Optionally, a mounting groove is provided on the top of the fixed block along the length direction of the fixed block, and the mounting frame includes a mounting rod and a placement rod installed on the top of the mounting rod, and the mounting rod and the placement rod are arranged in a T shape as a whole, and the mounting rod and the mounting groove are slidably fitted, and the bottom of the placement rod is in conflict with the top of the fixed block.

[0014] Optionally, a plurality of placement slots are provided on the top of the fixing block, and the plurality of placement slots are distributed along the length direction of the fixing block, and the placement rods are plugged into and fitted in the placement slots.

[0015] Optionally, the guide portion includes a guide frame mounted on the bottom of the mounting frame and a guide roller mounted on the guide frame for horizontal rotation, and the top of the guide roller contacts the capacitor film.

[0016] Optionally, the telescopic part includes a guide cylinder rotatably mounted on the placement rack, a guide column slidably mounted inside the guide cylinder, and a spring mounted inside the guide cylinder, one end of the spring contacts the end of the guide column, the other end of the spring contacts the inner wall of the guide cylinder, and the roller-shaped tension sensor is mounted at the bottom end of the guide column.

[0017] Optionally, the guide cylinder includes a cylinder body rotatably mounted on the placement rack and a mounting cap mounted on the top of the cylinder body, a guide rod is mounted on the end of the guide column, the guide rod slides through the mounting cap, and the spring is sleeved on the guide rod.

[0018] Optionally, a guide groove is provided on the inner wall of the cylinder along the length direction of the cylinder, and a slider is installed on the outer circumference of the guide column, and the slider is slidably matched with the guide groove.

[0019] Optionally, the driving unit includes a fixed frame mounted on the placement frame, a rotating rod rotatably mounted on the fixed frame, and a driving motor, the driving motor and the rotating rod are transmission-connected, and the end of the rotating rod is fixedly connected to the telescopic part.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. During the winding and conveying process of the capacitor film, the capacitor film passes through the guide roller, the roller-shaped tension sensor and the guide roller in sequence. During the conveying process of the capacitor film, the guide roller and the roller-shaped tension sensor guide the capacitor film. While the capacitor film is being conveyed, the tension of the capacitor film is measured by the roller-shaped tension sensor. At the same time, the roller-shaped tension sensor inputs the measured tension data of the capacitor film to the PLC control unit. The PLC control unit controls the operation of the drive unit, and the drive unit rotates the telescopic part to adjust the tension of the capacitor film, thereby facilitating that the tension of the capacitor film is within an appropriate range.

[0022] 2. When measuring the tension of the capacitor film through the roller-shaped tension sensor, the roller-shaped tension sensor squeezes the spring through the guide column to further adjust the tension of the capacitor film. When adjusting the tension of the capacitor film by rotating the telescopic part, the tension of the capacitor film is assisted by the elastic force of the spring, thereby further improving the effect of adjusting the tension of the capacitor film. At the same time, the rotation accuracy requirements of the telescopic part are reduced, and the cost of adjusting the tension of the capacitor film is reduced.

[0023] 3. When installing the guide assembly on the fixed block, insert the mounting rod into the mounting slot, which guides and limits the rod. Then, insert the placement rod into the corresponding placement slot according to the desired placement position, thereby improving the convenience of installing the guide assembly. At the same time, because the top and bottom of the guide rollers contact the capacitor film, the capacitor film exerts downward pressure on the guide rollers during the conveyance process, further reducing the possibility of the placement rod falling out of the placement slot and further improving the stability of the guide assembly installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0025] Figure 2 It is a schematic diagram of the guide component structure in an embodiment of the present application.

[0026] Figure 3 Schematic diagram showing the relative positions of the telescopic portion, the driving unit and the roller-shaped tension sensor in an embodiment of the present application.

[0027] Figure 4 It is a schematic diagram showing the relative positions of the cylinder and the guide column in the embodiment of the present application.

[0028] Description of reference numerals:

[0029] 1. Placement frame; 11. Base; 12. Support plate; 13. Fixed block; 131. Mounting slot; 132. Placement slot; 2. Guide assembly; 21. Mounting frame; 211. Mounting rod; 212. Placement rod; 22. Guide portion; 221. Guide frame; 222. Guide roller; 3. Adjustment assembly; 31. Telescopic portion; 311. Guide cylinder; 3111. Cylinder body; 3112. Mounting cap; 3113. Guide slot; 312. Guide column; 312. Guide rod; 313. Spring; 32. Drive unit; 321. Fixed frame; 322. Rotating rod; 323. Drive motor; 33. Roller tension sensor; 34. PLC control unit. DETAILED DESCRIPTION

[0030] The following is combined with Figures 1-4 This application is described in further detail.

[0031] The embodiment of the present application discloses a capacitor film winding and tensioning device based on PLC.

[0032] A PLC-based capacitor film winding and tensioning device includes a placement frame 1, a guide assembly 2, and an adjustment assembly 3. The placement frame 1 is installed near the capacitor film. Two guide assemblies 2 are provided, one at each end of the placement frame 1. The adjustment assembly 3 is installed on the placement frame 1 and located between the two guide assemblies 2.

[0033] During the conveying process, the capacitor film passes through the guide assembly 2, the adjustment assembly 3, and the guide assembly 2 in this order. The guide assembly 2, the adjustment assembly 3, and the guide assembly 2 guide the capacitor film. At the same time, the adjustment assembly 3 adjusts the tension of the capacitor film to keep the tension of the capacitor film within the normal tension range, thereby improving the winding effect of the capacitor film.

[0034] The placement rack 1 includes a base 11, a support plate 12, and a fixed block 13. The fixed block 13 is horizontally positioned on top of the base 11. It is a rectangular block, and its length matches the length of the capacitor film in the conveying direction. The support plate 12 is vertically fixed between the base 11 and the fixed block 13. One end of the support plate 12 is fixedly connected to the base 11, and the other end is fixedly connected to the side wall of the fixed block 13.

[0035] A mounting groove 131 is provided at the middle position of the top of both ends of the fixed block 13 along the length direction of the fixed block 13. The mounting groove 131 runs through the bottom of the fixed block 13. The two mounting grooves 131 correspond one to one with the two guide components 2. A plurality of placement grooves 132 are provided at the top of the fixed block 13 near the mounting groove 131. The plurality of placement grooves 132 are distributed along the length direction of the fixed block 13, and the placement grooves 132 are connected to the mounting groove 131. The length direction of the placement groove 132 is perpendicular to the length direction of the mounting groove 131.

[0036] The guide assembly 2 includes a mounting frame 21 and a guide portion 22 .

[0037] The mounting bracket 21 includes a mounting rod 211 and a placement rod 212. The placement rod 212 is horizontally disposed, with the mounting rod 211 located at the center of the bottom of the placement rod 212. The placement rod 212 and the mounting rod 211 are fixedly connected, forming a T-shape. The mounting rod 211 slides into the mounting slot 131, while the placement rod 212 plugs into the placement slot 132.

[0038] When placing the mounting frame 21 , the mounting rod 211 is placed inside the mounting groove 131 , the mounting rod 211 is limited by the mounting groove 131 , and the placement rod 212 is placed in the corresponding placement groove 132 according to the position where the guide assembly 2 needs to be placed.

[0039] The guide portion 22 includes a guide frame 221 and a guide roller 222. The guide frame 221 is fixedly mounted on the bottom of the mounting rod 211. The ends of the guide roller 222 cooperate with the rotating rollers of the guide frame 221. The guide roller 222 is arranged horizontally, and the top of the guide roller 222 contacts the capacitor film. During the conveyance of the capacitor film, the capacitor film presses the placement rod 212 tightly against the placement groove 132, improving the stability of the installation of the guide assembly 2.

[0040] The adjustment assembly 3 includes a telescopic portion 31, a drive unit 32, and a roller-shaped tension sensor 33. A PLC control unit 34 is also mounted on the base 11. The drive unit 32, the roller-shaped tension sensor 33, and the PLC control unit 34 are electrically connected.

[0041] The telescopic portion 31 includes a guide cylinder 311, a guide post 312 and a spring 313. The guide cylinder 311 includes a cylinder body 3111 and a mounting cap 3112. The two ends of the cylinder body 3111 are connected, the cylinder body 3111 and the fixed block 13 are rotatably matched, and the mounting cap 3112 is threadedly connected to the top of the cylinder body 3111. The guide post 312 is slidably mounted inside the cylinder body 3111, and a guide rod 312 is coaxially fixedly mounted on the end of the guide post 312. The guide rod 312 slides through the mounting cap 3112. The spring 313 is located inside the cylinder body 3111 and is sleeved on the guide rod 312. One end of the spring 313 contacts the end of the guide post 312, and the other end of the spring 313 contacts the side of the mounting cap 3112 close to the guide post 312.

[0042] The roller-shaped tension sensor 33 is fixedly mounted at the bottom end of the guide post 312. To reduce the possibility of relative rotation between the guide post 312 and the cylinder 3111 during its movement within the cylinder 3111, a guide groove 3113 is defined along the length of the cylinder 3111 on the inner wall of the cylinder 3111. A slider is mounted on the outer circumference of the guide post 312, which slidably engages the guide groove 3113. During the movement of the guide post 312, the inner wall of the guide groove 3113 guides the guide post 312 via the slider.

[0043] The drive unit 32 includes a fixed frame 321, a rotating rod 322, and a drive motor 323. The fixed frame 321 is fixedly mounted on the fixed block 13, and the rotating rod 322 is rotatably mounted on the fixed frame 321. One end of the rotating rod 322 is fixedly connected to the outer circumference of the cylinder 3111, and the drive motor 323 is in driving connection with the rotating rod 322.

[0044] The implementation principle of a PLC-based capacitor film winding and tensioning device in an embodiment of the present application is as follows: during the capacitor film winding and conveying process, the capacitor film is passed through the guide roller 222, the roller-shaped tension sensor 33 and the guide roller 222 in sequence; during the capacitor film conveying process, the guide roller 222 and the roller-shaped tension sensor 33 guide the capacitor film; while the capacitor film is being conveyed, the tension of the capacitor film is measured by the roller-shaped tension sensor 33; at the same time, the roller-shaped tension sensor 33 inputs the measured capacitor film tension data into the PLC control unit; the PLC control unit controls the operation of the drive unit 32, and the drive unit 32 rotates the telescopic part 31 to adjust the tension of the capacitor film, thereby facilitating that the tension of the capacitor film is within an appropriate range. When the tension of the capacitor film is measured by the roller-shaped tension sensor 33, the roller-shaped tension sensor 33 squeezes the spring 313 through the guide column 312 to further adjust the tension of the capacitor film. When the tension of the capacitor film is adjusted by rotating the telescopic portion 31, the elastic force of the spring 313 assists in adjusting the tension of the capacitor film, thereby further improving the effect of adjusting the tension of the capacitor film. At the same time, the rotation accuracy requirements for the telescopic portion 31 are reduced, and the cost of adjusting the tension of the capacitor film is reduced. When the guide assembly 2 is installed on the fixed block 13, the installation rod 211 is inserted into the installation groove 131, and the installation groove 131 guides and limits the installation rod 211. Then, according to the required placement position, the placement rod 212 is inserted into the corresponding placement groove 132, thereby improving the convenience of installing the guide assembly 2. At the same time, since the top and bottom of the guide roller 222 are in contact with the capacitor film, the capacitor film exerts downward pressure on the guide roller 222 during the conveying process of the capacitor film, thereby further reducing the possibility of the placement rod 212 detaching from the placement groove 132 and further improving the stability of the installation guide assembly 2.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A PLC-based capacitor film winding and tensioning device, which is used to adjust the tension of the wound capacitor film, characterized by: The tensioning device comprises: Placement rack (1); A guide assembly (2), wherein two guide assemblies (2) are provided, and the two guide assemblies (2) are installed at both ends of the placement frame (1), and each guide assembly (2) comprises a mounting frame (21) and a guide portion (22) installed on the mounting frame (21), and the guide portion (22) and the capacitor film are in rolling engagement; An adjusting component (3) is installed on the placing frame (1). The adjusting component (3) is located between the two guide components (2). The adjusting component (3) includes a telescopic portion (31) rotatably installed on the placing frame (1), a driving unit (32) for driving the telescopic portion (31) to rotate, and a roller-shaped tension sensor (33) installed at the bottom end of the telescopic portion (31). The roller-shaped tension sensor (33) and the capacitive film are in rolling cooperation. A PLC control unit (34) is installed on the placing frame (1). The roller-shaped tension sensor (33), the PLC control unit (34) and the driving unit (32) are electrically connected.

2. The PLC-based capacitor film winding and tensioning device according to claim 1, characterized in that: The placement rack (1) comprises a base (11), a support plate (12) vertically mounted on the base (11), and a fixed block (13) mounted on the top of the support block; the guide assembly (2) and the adjustment assembly (3) are both mounted on the fixed block (13).

3. The PLC-based capacitor film winding and tensioning device according to claim 2, characterized in that: The top of the fixing block (13) is provided with a mounting groove (131) along the length direction of the fixing block (13); the mounting frame (21) comprises a mounting rod (211) and a placement rod (212) mounted on the top of the mounting rod (211); the mounting rod (211) and the placement rod (212) are arranged in a T-shape as a whole; the mounting rod (211) and the mounting groove (131) are slidably matched; the bottom of the placement rod (212) contacts the top of the fixing block (13).

4. The PLC-based capacitor film winding and tensioning device according to claim 3, characterized in that: A plurality of placement grooves (132) are provided on the top of the fixing block (13), and the plurality of placement grooves (132) are distributed along the length direction of the fixing block (13), and the placement rods (212) and the placement grooves (132) are plugged and matched.

5. The PLC-based capacitor film winding and tensioning device according to claim 1, characterized in that: The guide portion (22) comprises a guide frame (221) mounted on the bottom of the mounting frame (21) and a guide roller (222) mounted on the guide frame (221) for horizontal rotation, wherein the top of the guide roller (222) contacts the capacitor film.

6. The PLC-based capacitor film winding and tensioning device according to claim 1, characterized in that: The telescopic portion (31) includes a guide cylinder (311) rotatably mounted on the placement rack (1), a guide column (312) slidably mounted inside the guide cylinder (311), and a spring (313) mounted inside the guide cylinder (311). One end of the spring (313) contacts the end of the guide column (312), and the other end of the spring (313) contacts the inner wall of the guide cylinder (311). The roller-shaped tension sensor (33) is mounted at the bottom end of the guide column (312).

7. A PLC-based capacitor film winding and tensioning device according to claim 6, characterized in that: The guide cylinder (311) comprises a cylinder body (3111) rotatably mounted on the placement rack (1) and a mounting cap (3112) mounted on the top of the cylinder body (3111); a guide rod (312) is mounted on the end of the guide column (312); the guide rod (312) slides through the mounting cap (3112), and the spring (313) is sleeved on the guide rod (312).

8. A PLC-based capacitor film winding and tensioning device according to claim 7, characterized in that: A guide groove (3113) is provided on the inner wall of the cylinder (3111) along the length direction of the cylinder (3111), and a slider is installed on the outer peripheral surface of the guide column (312), and the slider and the guide groove (3113) are slidably matched.

9. A PLC-based capacitor film winding and tensioning device according to claim 1, characterized in that: The driving unit (32) comprises a fixed frame (321) mounted on the placement frame (1), a rotating rod (322) rotatably mounted on the fixed frame (321), and a driving motor (323); the driving motor (323) and the rotating rod (322) are in transmission connection; and the end of the rotating rod (322) is fixedly connected to the telescopic portion (31).

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