Winding device of metallized film capacitor

Abstract

The invention discloses a winding device for a metallized film capacitor, and the device comprises a fixed frame which is internally and fixedly connected with a fixed frame in an inserted manner; compressed air is introduced through the air inlet pipe, the moving rod is pushed to drive the abutting plate to move, self-adaptive adjustment of winding drums with different inner diameters is achieved, it is ensured that the winding drums are stably installed on the device, a traditional external clamping structure and an independent transmission system are abandoned, and through the fixing and rotating functions of the fixing pipe, the winding drums can be stably installed on the device; fixing and winding of the winding drum are achieved, so that the size of the winding machine is effectively reduced, occupied space is further reduced, and when the fixing pipe rotates, centrifugal force automatically controls a second sealing plug to seal a first through hole and cut off a gas channel, so that the position of a pressing plate is fixed; after rotation is stopped, the second sealing plug is reset through the restoring force of the third spring, the first through hole is opened again, and extra manual operation is not needed in the whole process.

Description

Technical Field

[0001] The present invention relates to the technical field of capacitor preparation, and in particular to a winding device for a metallized film capacitor. Background Art

[0002] Metallized film capacitors are capacitors made by winding organic plastic film as the dielectric and metallized film as the electrode.

[0003] Currently, most of the rolls used for winding photovoltaic films use an external clamping structure to clamp and release the roll, and then a transmission system is set on the clamping mechanism. The clamping system and the transmission system will cause the winder to be bulky and occupy a large space. Summary of the invention

[0004] The present invention aims at the deficiencies in the prior art and provides the following technical solutions:

[0005] A winding device for a metallized film capacitor, comprising:

[0006] A fixing frame, wherein a fixing frame is fixedly inserted in the fixing frame;

[0007] An installation component, the installation component includes a fixed tube rotatably plugged into one end of the fixed frame and a plurality of connecting tubes connected to the side wall of the fixed tube, a moving rod movably plugged into one end of the connecting tube away from the fixed tube, and a pressing plate fixedly disposed on one end of the moving rod away from the connecting tube;

[0008] The cam is an axially-coupled device for unclamping the cylindrical body of the cylinder and the cam is adapted to engage the locking cam of the cylinder to lock the cylinder into a position adjacent to the locking cam of the cylinder.

[0009] An air inlet pipe is rotatably plugged into an end of the fixing tube away from the fixing tube, and the air inlet pipe is connected to the second chamber;

[0010] Among them, when the spring three is in a natural state, the through hole one is in an open state, so that the gas entering the inner chamber through the intake pipe enters the interior of the fixed tube. When the fixed tube is rotated by external force, the sealing plug two will stretch the spring three under the action of centrifugal force, thereby closing the through hole one.

[0011] As an improvement of the above technical solution, the cross section of the moving rod is a T-shaped structure, and a spring four is wound around a section of the surface of the moving rod located inside the connecting tube.

[0012] As an improvement of the above technical solution, it also includes a pressure component arranged in parallel on one side of the fixed tube, the pressure component includes multiple groups of movable rods movably inserted on the fixed frame, a mounting frame fixedly arranged between the multiple groups of movable rods, and a pressure roller rotatably arranged in the mounting frame, and the surface of the movable rod is located at a spring between the inner wall of the fixed frame and the mounting frame.

[0013] As an improvement of the above technical solution, an air pipe is fixedly arranged above the pressure roller through a bracket, and a nozzle is installed on the side of the air pipe facing the mounting assembly.

[0014] As an improvement of the above technical solution, the side wall of the outer sleeve is provided with multiple groups of through holes 2 for connecting the outer chamber with chamber 2, the side wall of the fixed cylinder is provided with air outlet holes for connecting the outer chamber with the inside of the fixed frame, the circumferential surface of the inner wall of the fixed cylinder is fixedly connected with multiple groups of springs 2 that are matched with the position and number of the through holes 2, the end of the spring 2 away from the inner wall of the fixed cylinder is fixedly connected with a sealing plug 1, and a hose is provided to connect the fixed frame and the air pipe.

[0015] As an improvement of the above technical solution, it also includes a driving member, which includes a motor arranged on the fixing frame, and a transmission belt is connected between the output end of the motor and the fixing pipe.

[0016] Beneficial effects of the present invention:

[0017] Compressed gas is introduced through the air inlet pipe to push the moving rod, which in turn drives the pressure plate to move flexibly, achieving precise adaptive adjustment of reels with different inner diameters, ensuring that the reel is firmly installed on the device, abandoning the traditional external clamping structure and independent transmission system, and realizing the stability and winding operation of the reel through the fixing and rotation functions of the fixed tube, significantly reducing the volume of the winder and reducing the space occupancy rate. When the fixed tube rotates, the sealing plug 2 automatically closes the through hole 1 by utilizing the principle of centrifugal force, effectively cutting off the gas passage and ensuring that the position of the pressure plate remains stable; after stopping rotation, the restoring force of the spring 3 resets the sealing plug 2 and reopens the through hole 1. The whole process does not require additional manual operation, and the operation is simple and the degree of automation is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A top view of the overall structure of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the connection between the installation component and the adjustment component of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the adjustment component of the present invention in a non-rotated state;

[0021] Figure 4 It is a structural schematic diagram of the adjusting component of the present invention in a rotating state;

[0022] Figure 5 It is a schematic structural diagram of the pressing assembly of the present invention.

[0023] Figure numerals: 10, fixed frame; 11, fixed frame; 20, pressure assembly; 21, mounting frame; 22, pressure roller; 23, spring one; 24, air pipe; 241, nozzle; 25, movable rod; 30, adjustment assembly; 31, fixed sleeve; 32, outer sleeve; 321, chamber one; 322, chamber two; 33, inner sleeve; 34, through hole one; 35, through hole two; 36, air outlet; 37, sealing plug one; 38, spring two; 39, sealing plug two; 310, spring three; 40, fixed pipe; 41, pressure plate; 42, connecting pipe; 43, spring four; 44, movable rod; 50, air inlet pipe. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] A winding device for a metallized film capacitor comprises: a fixing frame 10, wherein a fixing frame 11 is fixedly inserted in the fixing frame 10;

[0026] An installation assembly, the installation assembly includes a fixed tube 40 rotatably plugged into one end of the fixed frame 11 and a plurality of connecting tubes 42 connected to the side wall of the fixed tube 40, a moving rod 44 is movably plugged into one end of the connecting tube 42 away from the fixed tube 40, and a pressing plate 41 is fixedly provided on one end of the moving rod 44 away from the connecting tube 42;

[0027] The adjusting component 30 is fixedly arranged at one end of the fixing tube 40 located inside the fixing frame 11. The adjusting component includes a fixing tube 31 fixedly arranged with the fixing tube 40, an outer sleeve 32 fixedly arranged parallel to the axial direction of the fixing tube 31, and an inner sleeve 33 fixedly arranged perpendicular to the axial direction of the outer sleeve 32. The outer sleeve 32 divides the cavity of the fixing tube 31 into an inner chamber and an outer chamber from the inside to the outside, and the inner sleeve 33 divides the inner chamber into chambers one by one along the extension direction of the outer sleeve 32. 321 and chamber 2 322, the chamber 1 321 is connected with the fixed tube 40, the side walls on both sides of the inner sleeve 33 are provided with through holes 1 34 for connecting the chamber 1 321 with the inside of the inner sleeve 33 and the chamber 2 322 with the inside of the inner sleeve 33, a fixing column is fixedly arranged in the inner sleeve 33 and along its axial direction, a plurality of groups of springs 310 matching the positions and numbers of the through holes 1 34 are fixedly connected to the circumferential surface of the fixing column, and a sealing plug 2 39 is fixedly connected to the end of the spring 310 away from the fixing column;

[0028] The air inlet pipe 50 is rotatably plugged into the end of the fixing tube 31 away from the fixing tube 40, and the air inlet pipe 50 is communicated with the second chamber 322;

[0029] Among them, when the spring three 310 is in a natural state, the through hole one 34 is in an open state, so that the gas entering the inner chamber through the intake pipe 50 enters the fixed tube 40. When an external force drives the fixed tube 40 to rotate, the sealing plug two 39 stretches the spring three 310 under the action of centrifugal force to close the through hole one 34.

[0030] Specifically, in the initial state, when the spring three 310 is in the natural state, the through hole one 34 is in the open state, referring to Figure 3 , put the reel on the mounting assembly, and then open the air inlet pipe 50, so that the air inlet pipe 50 can pass the compressed gas into the inner chamber through the chamber 2 322 and the through hole 1 34 in turn, enter the inner sleeve 33, and then enter the chamber 1 321 through the through hole 1 34 on the other side of the inner sleeve 33, and finally enter the fixed tube 40, enter the connecting tube 42 through the fixed tube 40, act on the moving rod 44, and the gas entering the connecting tube 42 pushes the moving rod 44 to move, so that the moving rod 44 drives the pressure plate 41 to move, so that the pressure plate 41 contacts the inner wall of the reel, and the reel is fixedly installed. This process realizes the adaptive adjustment of reels with different inner diameters, ensuring that the reel is stably installed on the device. When it is necessary to start winding the metallized film, when the external force drives the fixed tube 40 to rotate, the sealing plug 2 39 stretches the spring 310 under the action of centrifugal force. When the centrifugal force reaches a certain level, the sealing plug 2 39 will close the through hole 1 34. Figure 4At this time, the gas introduced into the inner chamber by the air inlet pipe 50 can no longer enter the fixed pipe 40 through the through hole 1 34, the gas passage is cut off, the gas no longer enters the fixed pipe 40, and the gas in the fixed pipe 40 will not flow out. The pressure plate 41 is fixed in the position previously pushed by the gas, maintaining a stable pressure on the reel. During the continuous rotation of the fixed pipe 40, the metallized film installed on the pressure plate 41 rotates synchronously with the reel. After the winding operation is completed, the fixed pipe 40 stops rotating, and the centrifugal force on the sealing plug 2 39 disappears. Under the elastic restoring force of the spring 310, the sealing plug 2 39 returns to the initial position, and the through hole 1 34 is reopened. At this time, if the reel needs to be replaced for the next round of winding, the operator can control the introduction and discharge of gas through the air inlet pipe 50, adjust the position of the pressure plate 41, and repeat the above operation process, wherein multiple groups of connecting pipes 42 are arranged in a spiral shape on the mounting assembly.

[0031] In one embodiment, reference Figure 2 The cross section of the moving rod 44 is a T-shaped structure, and a spring four 43 is wound around the surface of the moving rod 44 and located inside the connecting tube 42. The cross section of the moving rod 44 is a T-shaped structure. This structure makes the moving rod 44 more stable when moving in the connecting tube 42, and is not prone to shaking or offset, thereby ensuring the accuracy and reliability of the movement of the pressure plate 41. The pressure generated by the gas pushes the moving rod 44, and the spring four 43 is compressed to absorb a certain impact force, making the movement of the moving rod 44 more stable. As the gas pressure continues to act, the moving rod 44 drives the pressure plate 41 to move toward the inner wall of the reel until the pressure plate 41 is tightly in contact with the inner wall of the reel. When the air intake pipe 50 is exhausted, the moving rod 44 is pushed to move toward the direction of the fixed tube 40 under the action of the restorative elastic force of the spring four 43, so that the pressure plate 41 is separated from the inner wall of the reel, which is convenient for replacing the reel.

[0032] In one embodiment, reference Figure 1 as well as Figure 5, and also includes a pressing assembly 20 arranged in parallel on one side of the fixed tube 40, the pressing assembly 20 includes a plurality of groups of movable rods 25 movably plugged on the fixed frame 10, a mounting frame 21 fixedly arranged between the plurality of groups of movable rods 25, and a pressing roller 22 rotatably arranged in the mounting frame 21, and a spring 23 on the surface of the movable rod 25 and located between the inner wall of the fixed frame 10 and the mounting frame 21. When the reel is installed in place, the elastic force of the spring 23 begins to play a role, and the spring 23 applies a thrust to the mounting frame 21 toward the reel, so that the mounting frame 21 drives the pressing roller 22 to rotate. The roller 22 approaches the roll until the pressure roller 22 contacts the surface of the roll. The spring 23, due to its elastic characteristics, can adaptively expand and contract according to the change of the outer diameter of the roll. During the winding process, the metallized film is continuously wound around the roll, causing the outer diameter of the roll to increase, and the spring 23 is further compressed to ensure that the pressure roller 22 is in close contact with the surface of the roll. The pressure roller 22 applies pressure to the film being wound, causing the film to be tightly and evenly wound on the roll. At the same time, the rotation of the pressure roller 22 enables it to rotate synchronously with the rotation of the roll, effectively reducing the friction resistance between the pressure roller and the film and preventing damage to the film.

[0033] In one embodiment, reference Figure 5 An air pipe 24 is fixedly provided above the pressure roller 22 through a bracket, and a nozzle 241 is installed on the side of the air pipe 24 facing the mounting assembly. Gas is continuously introduced into the air pipe 24, and the nozzle 241 continuously ejects airflow. During the film winding process, the airflow directly acts on the joint between the film and the roll. The horizontal component force generated by the airflow exerts additional tension on the film, which helps the film to be further tightened during winding, reduces the gap between film layers, improves the tightness of winding, and can make the force on different parts of the film more uniform, thereby prompting the film to be tightened evenly and avoiding the situation where it is partially too loose or too tight.

[0034] In one embodiment, reference Figure 3 as well as Figure 4 The side wall of the outer sleeve 32 is provided with a plurality of through holes 35 for connecting the outer chamber with the second chamber 322, and the side wall of the fixed cylinder 31 is provided with an air outlet 36 for connecting the outer chamber with the interior of the fixed frame 11. The circumferential surface of the inner wall of the fixed cylinder 31 is fixedly connected with a plurality of springs 38 matching the positions and numbers of the second through holes 35, and the end of the second spring 38 away from the inner wall of the fixed cylinder 31 is fixedly connected with a sealing plug 37, and a hose is provided between the fixed frame 11 and the air pipe 24;

[0035] Specifically, when the fixed tube 40 is not rotating, the through hole 1 34 is in an open state, the through hole 2 35 and the air outlet 36 are in a sealed state, and the gas introduced into the inner chamber by the air inlet pipe 50 can sequentially pass through the chamber 2 322 and the through hole 1 34 into the inner sleeve 33, and then enter the chamber 1 321 through the through hole 1 34 on the other side of the inner sleeve 33, and finally enter the fixed tube 40. When the fixed tube 40 rotates, the sealing plug 2 39 stretches the spring 310 under the action of centrifugal force. When the centrifugal force reaches a certain level, the sealing plug 2 3 9 will close the through hole 1 34. At the same time, the sealing plug 1 37 compresses the spring 2 38 under the action of centrifugal force, so that the through hole 2 35 and the air outlet 36 are opened, so that the gas in the chamber 2 322 enters the outer chamber through the through hole 2 35, and then flows into the fixed frame 11 through the air outlet 36, and is then transported to the air pipe 24 by the hose. The gas flow direction can be automatically switched according to the state of the fixed pipe 40 without manual intervention, so that the device can respond quickly according to the change of the working state, thereby improving the continuity and stability of the winding process.

[0036] In one embodiment, a driving member is further included, and the driving member includes a motor arranged on the fixing frame 10, and a transmission belt is connected between the output end of the motor and the fixing tube 40. When the motor is started, the motor drives the fixing tube 40 to rotate through the transmission belt.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A winding device for a metallized film capacitor, characterized in that: include: A fixing frame (10), wherein a fixing frame (11) is fixedly inserted inside the fixing frame (10); An installation component, the installation component comprising a fixed tube (40) rotatably plugged into one end of the fixed frame (11) and a plurality of connecting tubes (42) connected and arranged on the side wall of the fixed tube (40), a moving rod (44) being movably plugged into one end of the connecting tube (42) away from the fixed tube (40), and a pressing plate (41) being fixedly arranged on one end of the moving rod (44) away from the connecting tube (42); The adjusting component (30) is fixedly arranged at one end of the fixing tube (40) located inside the fixing frame (11), and comprises a fixing tube (31) fixedly arranged with the fixing tube (40), an outer sleeve (32) fixedly arranged in parallel with the axial direction of the fixing tube (31), and an inner sleeve (33) fixedly arranged in perpendicular with the axial direction of the outer sleeve (32), wherein the outer sleeve (32) divides the cavity of the fixing tube (31) into an inner cavity and an outer cavity from inside to outside, and the inner sleeve (33) divides the inner cavity into chambers (31) in sequence along the extension direction of the outer sleeve (32). 21) and chamber 2 (322), the chamber 1 (321) is connected to the fixed tube (40), the side walls on both sides of the inner sleeve (33) are provided with through holes 1 (34) for connecting chamber 1 (321) with the inside of the inner sleeve (33) and chamber 2 (322) with the inside of the inner sleeve (33), a fixing column is fixedly arranged in the inner sleeve (33) and along its axial direction, a plurality of groups of springs 3 (310) are fixedly connected to the circumferential surface of the fixing column, and a sealing plug 2 (39) is fixedly connected to the end of the spring 3 (310) away from the fixing column; An air inlet pipe (50) is rotatably plugged into an end of the fixing tube (31) away from the fixing tube (40), and the air inlet pipe (50) is in communication with the second chamber (322); When the spring three (310) is in a natural state, the through hole one (34) is in an open state, so that the gas entering the inner chamber through the air inlet pipe (50) enters the interior of the fixed tube (40). When an external force drives the fixed tube (40) to rotate, the sealing plug two (39) stretches the spring three (310) under the action of centrifugal force, thereby closing the through hole one (34).

2. A winding device for a metallized film capacitor according to claim 1, characterized in that: The cross section of the moving rod (44) is in a T-shaped structure, and a spring four (43) is wound around a section of the surface of the moving rod (44) located inside the connecting tube (42).

3. The winding device of a metallized film capacitor according to claim 1, characterized in that: It also includes a pressing assembly (20) arranged in parallel on one side of the fixed tube (40), the pressing assembly (20) including a plurality of groups of movable rods (25) movably inserted on the fixed frame (10), a mounting frame (21) fixedly arranged between the plurality of groups of movable rods (25), and a pressing roller (22) rotatably arranged in the mounting frame (21), and a spring (23) located on the surface of the movable rod (25) and between the inner wall of the fixed frame (10) and the mounting frame (21).

4. A winding device for a metallized film capacitor according to claim 3, characterized in that: An air pipe (24) is fixedly arranged above the pressing roller (22) via a bracket, and a nozzle (241) is installed on the side of the air pipe (24) facing the mounting assembly.

5. A winding device for a metallized film capacitor according to claim 4, characterized in that: The side wall of the outer sleeve (32) is provided with a plurality of through holes (35) for connecting the outer chamber with the second chamber (322); the side wall of the fixed cylinder (31) is provided with an air outlet (36) for connecting the outer chamber with the interior of the fixed frame (11); the circumferential surface of the inner wall of the fixed cylinder (31) is fixedly connected with a plurality of springs (38) whose positions and numbers match those of the second through holes (35); one end of the springs (38) away from the inner wall of the fixed cylinder (31) is fixedly connected with a sealing plug (37); and a hose is provided for connecting the fixed frame (11) with the air pipe (24).

6. The winding device of a metallized film capacitor according to claim 1, characterized in that: It also comprises a driving member, which comprises a motor arranged on the fixing frame (10), and a driving belt is connected between the output end of the motor and the fixing pipe (40).

Images