CN117711844B - Film capacitor roll core flattening device - Google Patents
Film capacitor roll core flattening device Download PDFInfo
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- CN117711844B CN117711844B CN202410156791.0A CN202410156791A CN117711844B CN 117711844 B CN117711844 B CN 117711844B CN 202410156791 A CN202410156791 A CN 202410156791A CN 117711844 B CN117711844 B CN 117711844B
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- 239000003990 capacitor Substances 0.000 title claims abstract description 20
- 238000004804 winding Methods 0.000 claims description 54
- 239000004743 Polypropylene Substances 0.000 claims description 24
- -1 polypropylene Polymers 0.000 claims description 24
- 229920001155 polypropylene Polymers 0.000 claims description 24
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 13
- 230000002457 bidirectional effect Effects 0.000 description 12
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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Abstract
The invention provides a film capacitor roll core flattening device, which belongs to the technical field of special equipment for manufacturing capacitors, and comprises: a flattening mechanism, a follow-up mechanism and a tightening component. The flattening mechanism comprises a lower die and an upper die. The follow-up mechanism comprises a disc arranged outside the back surface of the flattening mechanism, the axis of the disc is perpendicular to the back surface of the flattening mechanism, and the disc is positioned between the lower die and the upper die; the disc moves along with the upper die, and the moving distance and the moving speed of the disc are half of those of the upper die. The tightening assembly comprises a rotating shaft which coaxially penetrates through the disc, the front end of the rotating shaft faces to the right front of the flattening mechanism, the rotating shaft is arranged in a rotating mode around the axis, a pair of top plates are arranged on two sides of the front end of the rotating shaft in parallel, the two top plates synchronously move along the connecting line direction, the moving directions are opposite, and the top and the bottom of the front end of the rotating shaft are of flat structures. The pole piece inside the roll core can be effectively prevented from generating folds during flattening, the flattening yield of the roll core is improved, and the whole structure of the device is simple.
Description
Technical Field
The invention belongs to the technical field of special equipment for manufacturing capacitors, and particularly relates to a roll core flattening device for a film capacitor.
Background
The film capacitor has wide application in the fields of energy storage, communication, electric power and the like due to the high insulation resistance, small capacitance loss, reliability, safety and explosion prevention performance. As shown in FIG. 13, the film capacitor mainly adopts two long metallized polypropylene films and a diaphragm which are alternately stacked, and is wound to form a winding core with a cylindrical structure, and finally is flattened and formed by a flattening device.
Most of the existing flattening devices directly utilize external force to flatten a winding core forming a cylinder, one end of a film positioned inside the winding core can not be tightly pressed against the inner wall of the cylinder, but a multi-layer folding fold structure is formed inside the winding core, so that the performance of a capacitor is affected, and even the capacitor is directly scrapped.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides the roll core flattening device for the film capacitor, which can effectively prevent the film inside the roll core from being wrinkled during flattening, improve the flattening yield of the roll core and has simple integral structure.
In order to achieve the object of the invention, the following scheme is adopted:
The utility model provides a film capacitor rolls up core flattening device, rolls up the core and includes two rectangular metallized polypropylene films and a diaphragm, and metallized polypropylene film and diaphragm are crisscross to be piled up to coiling into drum structure, and the diaphragm is located the length of the inside one end of roll up the core and surpasss the film, flattens the device and include: a flattening mechanism, a follow-up mechanism and a tightening component.
The flattening mechanism comprises a lower die and an upper die arranged above the lower die, and the upper die is arranged in a moving way perpendicular to the top surface of the lower die.
The follow-up mechanism comprises a disc arranged outside the back surface of the flattening mechanism, the axis of the disc is perpendicular to the back surface of the flattening mechanism, and the disc is positioned between the lower die and the upper die; the disc moves along with the upper die, and the moving distance and the moving speed of the disc are half of those of the upper die.
The tightening assembly comprises a rotating shaft which coaxially penetrates through the disc, the front end of the rotating shaft faces to the right front of the flattening mechanism, the rotating shaft is arranged in a rotating mode around the axis, a pair of top plates are arranged on two sides of the front end of the rotating shaft in parallel, the two top plates synchronously move along the connecting line direction, the moving directions are opposite, and the top and the bottom of the front end of the rotating shaft are of flat structures.
The invention has the beneficial effects that: the inner wall of the roll core is continuously pressed by the top plate to prevent the end of the metallized polypropylene film inside the roll core from warping towards the inside of the roll core, so that the end of the metallized polypropylene film inside the roll core after flattening is effectively prevented from forming folds, and the quality and the yield of the flattened roll core are ensured.
Drawings
The drawings described herein are for illustration of selected embodiments only and not all possible implementations, and are not intended to limit the scope of the invention.
Fig. 1 is a schematic view showing the overall structure of the back surface of the preferred embodiment of the present application when the rotation shaft is moved backward to a predetermined position.
Fig. 2 shows a schematic view of a preferred construction of the follower and the tightening assembly.
Fig. 3 shows a partial enlarged view at a in fig. 2.
Fig. 4 shows a side view of the preferred embodiment of the application with the spindle moved back to a predetermined position.
Fig. 5 shows a partial cross-sectional view along the direction B-B in fig. 4.
Figure 6 shows a side view of the preferred embodiment of the application with the spindle moved forward to the extreme position.
Fig. 7 shows a partial cross-sectional view of the present application with the hook portion engaged with the arcuate slot.
Fig. 8 shows a schematic view of the overall structure of the front of the present application when the spindle is threaded inside the winding core.
Fig. 9 shows a partial cross-sectional view of the application with the spindle threaded inside the winding core.
Fig. 10 shows a schematic overall structure of the back side of the preferred embodiment of the present application when the core is flattened.
Fig. 11 shows a schematic view of the overall structure of the front of the present application when the core is flattened.
Fig. 12 shows a partial cross-sectional view of the present application as the core collapses.
Fig. 13 shows a schematic end view of a preferred construction of the winding core.
The marks in the figure: the lower die-1, the lower support-11, the upper die-2, the upper support-21, the disc-3, the guide groove-301, the clamping groove-302, the horizontal guide rod-31, the sliding block-32, the rectangular pipe-321, the vertical guide rod-33, the hinge plate-34, the arc plate-35, the arc groove-351, the rectangular rod-352, the spring-36, the extension rod-37, the rotating shaft-4, the strip groove-401, the annular groove-402, the top plate-41, the hook-411, the positioning rod-42, the second conical gear-43, the motor-5, the first conical gear-51, the telescopic device-6, the movable rod-61 and the deflector rod-62.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, but the described embodiments of the present invention are some, but not all embodiments of the present invention.
The embodiment of the application provides a roll core flattening device of a film capacitor, which is used for flattening a roll core as shown in fig. 13. The roll core comprises two strip-shaped metallized polypropylene films and a diaphragm, wherein the metallized polypropylene films and the diaphragm are overlapped in a staggered way and are wound into a cylindrical structure, the length of one end of the diaphragm, which is positioned in the roll core, exceeds the metallized polypropylene films, and the metallized polypropylene films are protected by the exceeding diaphragm so as to prevent the metallized polypropylene films from being scratched due to direct contact between parts of a flattening device and the metallized polypropylene films in the subsequent flattening process, and the parts possibly contacting with the metallized polypropylene films in the application are a rotating shaft 4 and two top plates 41 arranged on the rotating shaft 4.
As shown in fig. 1 to 12, the flattening apparatus of the present embodiment includes: a flattening mechanism, a follow-up mechanism and a tightening component.
Specifically, the flattening mechanism comprises a lower die 1 and an upper die 2 arranged above the lower die, wherein the upper die 2 is arranged in a moving way along the direction vertical to the top surface of the lower die 1, and the upper die 2 is driven by a hydraulic cylinder or an air cylinder or a linear motor.
The follow-up mechanism comprises a disc 3 arranged outside the back surface of the flattening mechanism, the axis of the disc is perpendicular to the back surface of the flattening mechanism and is positioned between the lower die 1 and the upper die 2; the disc 3 moves along with the upper die 2, and the moving distance and the moving speed of the disc 3 are half of those of the upper die 2, so that the axis of the disc 3 is always positioned between the lower die 1 and the upper die 2. The specific control mode can directly control the moving distance and moving speed of the disc 3 by using a linear motor or an air cylinder so as to enable the moving distance and the moving speed of the disc to be in a preset proportional relation with the moving speed of the upper die 2. As a preferable scheme, the disc 3 is rotationally arranged at the middle position of a bidirectional screw rod, the bidirectional screw rod is perpendicular to the axis of the disc 3, screw rods with opposite rotation directions are arranged at two ends of the bidirectional screw rod, the screw rods at two ends of the bidirectional screw rod are respectively connected with the upper die 2 and the lower die 1, and the bidirectional screw rod is perpendicular to the top surface of the lower die 1; when the two-way screw rod is used, the lower die 1 is fixed, the disc 3 and the upper die 2 can be driven to move towards the lower die 1 at the same time or to be far away from the lower die 1 at the same time by rotating the two-way screw rod, and the moving distance and the moving speed of the disc 3 are half of those of the upper die 2.
The tightening assembly comprises a rotating shaft 4 coaxially penetrating through the disc 3, the front end of the rotating shaft 4 faces the right front of the flattening mechanism, the rotating shaft 4 is rotatably arranged around an axis, a pair of top plates 41 are arranged on two sides of the front end in parallel, the two top plates 41 are synchronously moved along the connecting line direction, the moving directions are opposite, as a scheme, the section of the top plates 41 is of an arc-shaped plate structure, and the intrados of the top plates is attached to the extrados of two sides of the rotating shaft 4. The top and the bottom of the front end of the rotating shaft 4 are of flat structures, so that a larger flattening space is obtained for the winding core. As a preferred solution, a bidirectional telescopic device, such as a bidirectional cylinder or a bidirectional motor, is arranged in the rotating shaft 4, the telescopic rod of the bidirectional telescopic device is perpendicular to the axis of the rotating shaft 4, the top plates 41 on two sides are driven to move synchronously by using the telescopic rods on two ends of the bidirectional telescopic device, and meanwhile, the bidirectional telescopic device also moves and rotates along with the rotating shaft 4, and because the bidirectional telescopic device is arranged in the rotating shaft 4, the rotating shaft 4 is not influenced to move along the axis relative to the disc 3. The rotation shaft 4 moves along the axis and is controlled by a linear motor or an air cylinder; as a preferred embodiment, the rotary shaft 4 is coaxially arranged at the end of the movable rod of a cylinder, the cylinder is arranged on the main shaft of a rotary motor, the rotary motor is used for driving the cylinder and the rotary shaft 4 to rotate around the axis in operation, and the rotary shaft 4 is controlled by the cylinder to move along the axis relative to the disc 3.
The working principle is as follows:
Placing a winding core, firstly folding the two top plates 41 towards the axis of the rotating shaft 4 so as to minimize the outline size of the rotating shaft 4 and facilitate the rotating shaft 4 to be inserted into the winding core; then the winding core is placed on the top surface of the lower die 1, the axis of the winding core is consistent with the direction of the rotating shaft 4, the upper die 2 is adjusted to a preset height, the height of the rotating shaft 4 is consistent with the height of an inner hole of the winding core, and the disc 3 is positioned at the middle position of the heights of the upper die 2 and the lower die 1, so that the bottom surface of the upper die 2 is contacted with the top of the winding core at the moment, and the primary fixing of the winding core is completed; finally, the winding core is moved towards the disc 3, so that the rotating shaft 4 is inserted into the inner hole of the winding core.
Tightening the metallized polypropylene film inside the winding core; firstly, rotating a rotating shaft 4 towards the winding direction of a winding core outwards by a preset angle, wherein the specific rotating angle is smaller than 90 degrees, and the top plate 41 is parallel to the top surface of the lower die 1 before the rotating shaft 4 rotates; then, the two top plates 41 are moved to the outer side of the rotating shaft 4 so as to increase the distance between the outer edges of the two top plates 41 until the outer edges of the top plates 41 are in contact with the inner wall of the winding core, and the edges of the top plates 41 are utilized to push the metallized polypropylene film inside the winding core to be clung to the inner wall of the winding core; and then the rotating shaft 4 is rotated in the opposite direction, the opposite direction is the direction opposite to the outward winding direction of the winding core, the top plate 41 is parallel to the top surface of the lower die 1 again through the reverse rotation of the rotating shaft 4 so as to adapt to the space requirement when the winding core is flattened, the top plate 41 is prevented from obstructing the flattening of the winding core, and the end part of the metallized polypropylene film positioned in the winding core is tightly attached to the inner wall of the winding core through the reverse rotation of the rotating shaft 4, so that the metallized polypropylene film is prevented from generating wrinkles in the flattening process.
The roll core is flattened by moving the upper die 2 downwards, the roll core is flattened by using the upper die 2, the disc 3 moves downwards together with the upper die 2 in the process, so that the rotating shaft 4 moves downwards together with the upper die 2, the moving speed and distance are half of those of the upper die 2, the roll core is prevented from being influenced in flattening process, the top plate 41 continues to move towards two sides of the rotating shaft 4 synchronously in flattening process, the edge of the top plate 41 continuously compresses the metallized polypropylene film, when the upper die 2 moves downwards to a preset height, the distance between the bottom surface of the upper die 2 and the top surface of the lower die 1 is consistent with the preset flattening thickness of the roll core, the roll core flattening work is completed, and the height of an inner hole of the roll core after flattening is greater than or equal to the distance between the top surface and the bottom surface of the rotating shaft 4.
Taking materials, wherein the upper die 2 is kept in a compressed state, and firstly, two top plates 41 are folded towards the axis of a rotating shaft 4 so as to prevent the top plates 41 from driving the metallized polypropylene film to move; then the rotating shaft 4 is moved backwards, and the rotating shaft 4 is pulled out from the inside of the winding core; and finally, the upper die 2 is moved upwards, and the winding core is taken away from the top surface of the lower die 1.
Preferably, the upper die 2 can be moved downwards continuously after the winding core is pulled out, so that the inner hole of the winding core is completely flattened, and the metalized polypropylene film inside the winding core is attached to the inner wall of the winding core at the moment and has the preset deformation, so that the movable space and the shaking amount of the end part of the metalized polypropylene film are smaller, and the metalized polypropylene film is not wrinkled in the subsequent flattening process.
Preferably, as shown in fig. 1,2 and 10, two sides of the disc 3 are provided with coaxial horizontal guide rods 31, the guide rods 31 are provided with sliding blocks 32 in a sliding manner, the top and the bottom of the disc 3 are provided with coaxial vertical guide rods 33, the vertical guide rods 33 are perpendicular to the horizontal guide rods 31 and are perpendicular to the axis of the disc 3, that is, the vertical guide rods 33 and the horizontal guide rods 31 can be perpendicular or not, but are perpendicular to the axis of the disc 3 and are perpendicular to the axis of the disc 3. The vertical guide rod 33 at the bottom of the disc 3 penetrates through the lower support 11 arranged outside the lower die 1, the vertical guide rod 33 at the top of the disc 3 penetrates through the upper support 21 arranged outside the upper die 2, and the upper support 21 and the lower support 11 are connected with the sliding blocks 32 on two sides of the disc 3 through hinge plates 34 with the same specification. Namely, the left and right sides of the upper support 21 are respectively connected with the sliding blocks 32 at the two sides of the disc 3 through two hinge plates 34, the left and right sides of the lower support 11 are respectively connected with the sliding blocks 32 at the two sides of the disc 3 through two hinge plates 34, and both ends of the hinge plates 34 are all in a hinge structure. Through the structure setting, the purpose that the moving distance and the moving speed of the disc 3 are half of the moving speed of the upper die 2 can be realized. Specifically, when the upper die 2 moves downwards, the hinge plates 34 are utilized to push the sliding blocks 32 at two sides of the disc 3 to move towards the distal end synchronously, the included angle between the two hinge plates 34 corresponding to the upper and lower positions is gradually reduced, and the horizontal guide rod 31 is always positioned at the center line of the included angle. If the horizontal guide rod 31 is used as a fixed reference, the upper die 2 and the lower die 1 need to be moved towards or away from the horizontal guide rod 31 simultaneously by the movement of the upper die 2, and at this time, the upper die 2 and the lower die 1 are both moved at the same speed and distance; in the present embodiment, the lower die 1 is used as a fixed reference, and the same connecting structure is used, if the purpose of synchronously moving the upper die 2 and the lower die 1 towards the horizontal guide rod 31 is to be met, the speed and distance of the upper die 2 moving relative to the lower die 1 will be twice the speed and distance of the upper die 2 moving relative to the horizontal guide rod 31, namely, the moving distance and speed equivalent to the horizontal guide rod 31 is half of that of the upper die 2.
Preferably, as shown in fig. 2, 3 and 5, the two sides of the rotating shaft 4 are provided with the strip-shaped grooves 401, the top plate 41 is slidably arranged in the strip-shaped grooves 401, the outer side of the rear end of the top plate 41 is provided with the hook 411, the groove of the hook 411 faces the front end of the top plate 41, and the two sides of the through hole of the disc 3 for penetrating the rotating shaft 4 are provided with the guide grooves 301 penetrating the disc 3 for penetrating the hook 411 and the top plate 41. Specifically, the guide groove 301 acts on the hook 411 to avoid the hook 411, so that the rotation shaft 4 moves along the axis relative to the disc 3. As shown in fig. 1, the purpose of the guide groove 301 acting on the top plate 41 is that, since the top and bottom of the front end of the rotating shaft 4 are both flat, when the rotating shaft 4 moves backward along the axis, the top and bottom surfaces of the front end of the rotating shaft 4 cannot be stably matched with the through hole of the disc 3, at this time, the outer side of the top plate 41 is slidably inserted into the guide groove 301 to keep the stability of the connection between the rotating shaft 4 and the disc 3, and the top plate 41 is always in a horizontal state during the backward or forward movement of the rotating shaft 4, so as to determine the position of the top plate 41, thereby realizing automatic control of the rotation direction and angle of the rotating shaft 4. The slider 32 all is equipped with the arc 35 of semicircle structure towards one side of pivot 4, and the both ends of arc 35 are the structure setting from top to bottom, and its axis is located pivot 4 one side, and arc 35 is located between flattening mechanism and the disc 3, and arc 351 has been seted up to the one side of arc 35 towards disc 3, and when pivot 4 moved forward to extreme position, hook 411 links to each other with arc 351.
In use, the arcuate slot 351 and the hook 411 have four mating conditions together, which also represents four working processes. As shown in fig. 6 and 7, the first state is to move the rotating shaft 4 backward during each material taking, and in the above structure, the outer side of the top plate 41 will slide through the guiding slot 301 during the backward movement of the rotating shaft 4, it will be understood that the outer side of the top plate 41 will protrude from the outer surface of the rotating shaft 4 at this time, the rotating shaft 4 will need to be moved forward again after the winding core is taken away, in this process, the top plate 41 will keep in a state of being matched with the guiding slot 301, and the hook 411 will be blocked into the arc slot 351 when the rotating shaft 4 moves forward to the limit position, so as to complete the process of combining the hook 411 with the arc slot 351. As shown in fig. 8 and 9, in the second state, the top plate 41 is folded, the upper die 2 is moved upwards, the slide block 32 is driven to move towards the rotating shaft 4 by the hinge plate 34, and the slide block 32 drives the arc plate 35 to move towards the rotating shaft 4 together when moving, so that the top plate 41 is folded towards the middle by pushing the hook portion 411 by using the arc groove 351, so that the top plate 41 is hidden into the bar-shaped groove 401, and the outer contour size of the rotating shaft 4 is reduced, so that the rotating shaft 4 is convenient to be inserted into the inner hole of the winding core. As shown in fig. 10 to 12, in the third state, the top plate 41 is opened, the rotating shaft 4 is rotated by an angle smaller than 90 degrees in the direction of winding the winding core outwards, then the upper die 2 is moved downwards to enable the sliding block 32 to move along the horizontal guide rod 31 in a direction away from the rotating shaft 4, so as to drive the arc plate 35 to move, the arc plate 35 drives the top plate 41 to move towards the outer side of the rotating shaft 4 through the combination of the arc groove 351 or the hook 411, and then the edge of the top plate 41 is pressed against the inner wall of the winding core, so that the edge of the top plate 41 is utilized to push the metallized polypropylene film inside the winding core to be tightly attached to the inner wall of the winding core; then, the rotating shaft 4 is rotated in the opposite direction to enable the top plate 41 to be parallel to the top surface of the lower die 1 again, the top plate 41 is outwards opened through the process, the purpose of tightening the metallized polypropylene film inside the winding core is achieved, and the arc-shaped groove 351 drives the top plate 41 to be continuously outwards opened through the hook 411 in the process that the upper die 2 moves downwards to flatten the winding core. The fourth state is to separate, after the flattening work is completed, by moving the upper die 2 upward, the top plate 41 is folded toward the middle, and then moving the rotating shaft 4 backward, the hook 411 is separated from the arc groove 351, and at the same time, the rotating shaft 4 is pulled out from the winding core, and the outer side of the top plate 41 is engaged with the guide groove 301 again during the backward movement of the rotating shaft 4. In the process, the winding core is suspended between the lower die 1 and the upper die 2 under the drive of the rotating shaft 4, and can be taken out by means of a clamp.
Preferably, as shown in fig. 2, the arc plate 35 is disposed at an end of a rectangular rod 352, the slider 32 is provided with a rectangular tube 321 parallel to the horizontal guide rod 31, and the rectangular tube 321 is opened toward the rotating shaft 4, and the rectangular rod 352 is slidably disposed in the rectangular tube 321.
Further preferably, as shown in fig. 7, 9 and 12, the ends of the rectangular bars 352 are connected with the ends of the rectangular tubes 321 by springs 36, so that the arc plate 35 has a larger movement range, thereby avoiding the restriction of the movement range of the upper die 2 by the top plate 41.
Preferably, as shown in fig. 3, 5, 7, 9 and 12, the rear end of the inside of the bar-shaped groove 401 is provided with a positioning rod 42 consistent with the moving direction of the top plate 41, the positioning rods 42 penetrate through the top plate 41, the outer part of the corresponding guiding groove 301 on the surface of the disc 3 facing the flattening mechanism is provided with a clamping groove 302 extending along the normal line of the disc 3, the clamping groove 302 is used for slidably connecting the rear end of the top plate 41, the clamping groove 302 is internally provided with an extension rod 37 coaxial with the positioning rod 42, the distance between the extension rod 37 and the end of the positioning rod 42 is smaller than the width of the rear end of the top plate 41, so that when the top plate 41 is opened outwards, the extension rod 37 is not separated from the positioning rod 42, the extension rod 37 is connected, and the rear end of the top plate 41 is slidably arranged in the clamping groove 302, thereby realizing seamless connection of the top plate 41, ensuring the structural stability in the opening process of the top plate 41, and the extension rod 37 is arranged in a hole in the top plate 41 in a penetrating manner for penetrating the positioning rod 42.
Preferably, as shown in fig. 1,4,6 and 10, a motor 5 is disposed on the surface of the disc 3 facing the rear end of the rotating shaft 4, a first conical gear 51 is coaxially disposed on the spindle of the motor 5, an axis extension line of the first conical gear is perpendicularly intersected with the axis of the disc 3, a second conical gear 43 is coaxially disposed on the rear end of the rotating shaft 4, and when the rotating shaft 4 moves forward to a limit position, the second conical gear 43 is meshed with the first conical gear 51. On the other hand, the forward position of the rotary shaft 4 is defined by the engagement of the second conical gear wheel 43 with the first conical gear wheel 51, i.e. the limit position at which the rotary shaft 4 moves forward when the second conical gear wheel 43 engages with the first conical gear wheel 51. The motor 5 is fixedly arranged in the mode, the motor 5 and the rotating shaft 4 move up and down synchronously along with the disc 3, and the motor 5 and the main shaft 4 can be separated, so that the equipment attached to the rotating shaft 4 is reduced, the bearing of the rotating shaft 4 is lightened, and the mounting stability of the motor is improved. The surface of the disc 3 facing the rear end of the rotating shaft 4 is provided with a telescopic device 6, the movable rod 61 of the telescopic device is parallel to the rotating shaft 4 and faces the rear end of the rotating shaft 4, the rear end of the movable shaft 4 is provided with an annular groove 402, the tail end of the movable rod 61 is provided with a deflector rod 62, the tail end of the deflector rod 62 is positioned in the annular groove 402, the telescopic device 6 is started to drive the rotating shaft 4 to move along the axis through the movable rod 61, and meanwhile, the annular groove 402 rotates relative to the deflector rod 62 when the rotating shaft 4 rotates. The motor 5 and the telescopic device 6 are arranged on the side face of the rotating shaft 4, so that the installation size of the rear end of the rotating shaft 4 is effectively reduced, the motor 5 and the telescopic device 6 are directly installed by the disc 3, the motor 5 and the telescopic device 6 can move along with the disc 3, the motor 5 and the telescopic device 6 can not increase the load for the rotating shaft 4, and the structure is more compact.
The foregoing description of the preferred embodiments of the invention is merely exemplary and is not intended to be exhaustive or limiting of the invention. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention.
Claims (7)
1. A film capacitor winding core flattening device, wherein the length of the diaphragm at one end inside the winding core exceeds the metallized polypropylene film, the flattening device comprising:
the flattening mechanism comprises a lower die (1) and an upper die (2) arranged above the lower die, and the upper die (2) is arranged in a moving way along the direction vertical to the top surface of the lower die (1);
The follow-up mechanism comprises a disc (3) arranged outside the back of the flattening mechanism, the axis of the follow-up mechanism is perpendicular to the back of the flattening mechanism and is positioned between the lower die (1) and the upper die (2); the disc (3) moves along with the upper die (2), and the moving distance and the moving speed of the disc (3) are half of those of the upper die (2);
The tightening assembly comprises a rotating shaft (4), the rotating shaft (4) coaxially penetrates through the disc (3), the front end of the rotating shaft (4) faces to the right front of the flattening mechanism, the rotating shaft (4) is rotatably arranged around an axis, a pair of top plates (41) are arranged on two sides of the front end of the rotating shaft in parallel, the two top plates (41) are synchronously moved along the connecting line direction, the moving directions are opposite, and the top and the bottom of the front end of the rotating shaft (4) are of flat structures.
2. The film capacitor winding core flattening device according to claim 1, wherein coaxial horizontal guide rods (31) are arranged on two sides of the disc (3), sliding blocks (32) are arranged on the guide rods (31) in a sliding mode, coaxial vertical guide rods (33) are arranged on the top and the bottom of the disc (3), the vertical guide rods (33) are perpendicular to the horizontal guide rods (31) and vertically intersect with the axis of the disc (3), the vertical guide rods (33) at the bottom of the disc (3) penetrate through lower supports (11) arranged on the outer sides of the lower die (1), the vertical guide rods (33) at the top of the disc (3) penetrate through upper supports (21) arranged on the outer sides of the upper die (2), and the upper supports (21) and the lower supports (11) are connected with the sliding blocks (32) on two sides of the disc (3) through hinge plates (34) with the same specification.
3. The film capacitor winding core flattening device according to claim 2, wherein the two sides of the rotating shaft (4) are provided with strip-shaped grooves (401), the top plate (41) is slidably arranged in the strip-shaped grooves (401), the outer sides of the rear ends of the top plate (41) are provided with hook portions (411), grooves of the hook portions (411) face the front ends of the top plate (41), two sides of a through hole for penetrating the rotating shaft (4) on the disc (3) are provided with guide grooves (301) for penetrating the hook portions (411) and the top plate (41), one side of the sliding block (32) facing the rotating shaft (4) is provided with arc plates (35) with semicircular structures, two ends of the arc plates (35) are arranged in an up-down structure, an axis of the arc plates is located on one side of the rotating shaft (4), the arc plates (35) are located between the flattening mechanism and the disc (3), one side of the arc plates (35) faces the disc (3) is provided with arc grooves (351), and when the rotating shaft (4) moves forwards to a limit position, the hook portions (411) are connected with the arc grooves (351).
4. A film capacitor winding core flattening device according to claim 3, wherein the arc plate (35) is arranged at the end of a rectangular rod (352), the sliding block (32) is provided with a rectangular tube (321) parallel to the horizontal guide rod (31), the opening of the rectangular tube (321) faces the rotating shaft (4), the rectangular rod (352) is slidably arranged in the rectangular tube (321), and the end of the rectangular rod (352) is connected with the end of the rectangular tube (321) through a spring (36).
5. A film capacitor winding core flattening device as claimed in claim 3, wherein a positioning rod (42) which is consistent with the moving direction of the top plate (41) is arranged at the rear end of the inside of the strip-shaped groove (401), the positioning rods (42) penetrate through the top plate (41), a clamping groove (302) which extends along the normal line of the disc (3) is arranged on the surface of the disc (3) facing the flattening mechanism corresponding to the outside of the guide groove (301), the clamping groove (302) is used for being connected with the rear end of the top plate (41) in a sliding mode, an extension rod (37) which is coaxial with the positioning rod (42) is arranged in the clamping groove (302), and the distance between the extension rod (37) and the end part of the positioning rod (42) is smaller than the width of the rear end of the top plate (41).
6. A film capacitor winding core flattening apparatus as claimed in claim 1 or 2, wherein a motor (5) is provided on a surface of the disc (3) facing the rear end of the rotating shaft (4), a first conical gear (51) is coaxially provided on a main shaft of the motor (5), an axis extension line thereof perpendicularly intersects with the axis of the disc (3), a second conical gear (43) is coaxially provided on the rear section of the rotating shaft (4), and the second conical gear (43) is engaged with the first conical gear (51) when the rotating shaft (4) moves forward to a limit position.
7. A film capacitor winding core flattening apparatus as claimed in claim 6, wherein a telescopic device (6) is provided on the surface of the disc (3) facing the rear end of the rotating shaft (4), a movable rod (61) of the telescopic device is parallel to the rotating shaft (4) and faces the rear end of the rotating shaft (4), an annular groove (402) is provided at the rear end of the movable shaft (4), a deflector rod (62) is provided at the end of the movable rod (61), and the end of the deflector rod (62) is located in the annular groove (402).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410156791.0A CN117711844B (en) | 2024-02-04 | 2024-02-04 | Film capacitor roll core flattening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410156791.0A CN117711844B (en) | 2024-02-04 | 2024-02-04 | Film capacitor roll core flattening device |
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| Publication Number | Publication Date |
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| CN117711844A CN117711844A (en) | 2024-03-15 |
| CN117711844B true CN117711844B (en) | 2024-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410156791.0A Active CN117711844B (en) | 2024-02-04 | 2024-02-04 | Film capacitor roll core flattening device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04327456A (en) * | 1991-04-30 | 1992-11-17 | Matsushita Electric Ind Co Ltd | Method of winding long sheet onto flat plate and device therefor |
| CN205436836U (en) * | 2015-12-29 | 2016-08-10 | 镇江奥博通信设备有限公司 | Semi -automatic optic fibre adapter pressfitting machine |
| CN209343946U (en) * | 2019-07-08 | 2019-09-03 | 常州联威自动化设备有限公司 | A kind of metallized film capacitor up- coiler picks flattening mechanism |
| CN212434484U (en) * | 2020-05-11 | 2021-01-29 | 常州晟威机电有限公司 | Film capacitor winding core stretching, reaming and pre-flattening device based on servo motor |
| CN115064396A (en) * | 2022-05-31 | 2022-09-16 | 扬州日精电子有限公司 | Flattening device for processing film capacitor winding core capable of preventing inward-winding wrinkles |
-
2024
- 2024-02-04 CN CN202410156791.0A patent/CN117711844B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04327456A (en) * | 1991-04-30 | 1992-11-17 | Matsushita Electric Ind Co Ltd | Method of winding long sheet onto flat plate and device therefor |
| CN205436836U (en) * | 2015-12-29 | 2016-08-10 | 镇江奥博通信设备有限公司 | Semi -automatic optic fibre adapter pressfitting machine |
| CN209343946U (en) * | 2019-07-08 | 2019-09-03 | 常州联威自动化设备有限公司 | A kind of metallized film capacitor up- coiler picks flattening mechanism |
| CN212434484U (en) * | 2020-05-11 | 2021-01-29 | 常州晟威机电有限公司 | Film capacitor winding core stretching, reaming and pre-flattening device based on servo motor |
| CN115064396A (en) * | 2022-05-31 | 2022-09-16 | 扬州日精电子有限公司 | Flattening device for processing film capacitor winding core capable of preventing inward-winding wrinkles |
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|---|---|
| CN117711844A (en) | 2024-03-15 |
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