A winding device for producing film capacitors

Abstract

The present invention discloses a winding device for producing film capacitors, comprising a support plate installed in the device housing, a winding device body, a plurality of guide rollers and a plurality of unwinding rollers. When the improved film capacitor winding device is used, a relatively stable negative pressure cavity can be formed inside the limiting roller, thereby applying an adsorption constraint force to part of the material strip on the outer peripheral side of the limiting cylinder, so that the material strip will not slide with the limiting cylinder, thereby avoiding the misalignment of several material strips during stacking, and at the same time, the airflow can continuously apply an axial thrust to the unwinding roller through the impeller to straighten the material strip, and the thrust applied to the unwinding roller can be adjusted by the size of the airflow, so that the device can adapt to the winding operation of material strips of various specifications, the tension applied to the material strip is constant and will not cause the unwinding roller to get stuck, thereby avoiding the situation where the material strip is subjected to excessive tension, resulting in deformation or damage to the material strip.

Description

Technical Field

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

[0002] Film capacitors, also known as film dielectric capacitors, are capacitors that use metal foil as electrodes and thin film materials as dielectrics. This type of capacitor achieves efficient and stable energy storage and conversion functions through the high insulation and low loss characteristics of the film material. In the process of winding film capacitors, metal foil and plastic film are wound in a specific number of layers and order to form the structure of the capacitor.

[0003] When the existing film capacitor winding device is in use, the material strip is generally wound and unwound by the synchronous rotation of the unwinding roller and the winding roller of the winding device body, and as the diameter of the material roll decreases, the rotation speed between the unwinding roller and the winding device needs to be adjusted in real time, or a resistance is applied to the rotating winding roller by external force to maintain the straight state of the material strip. If the rotation speed ratio between the unwinding roller and the winding roller fluctuates or the unwinding roller is stuck due to external force, the material strip may be subjected to a great pulling force, thereby causing damage to the material strip. The material strip released from the material roll is generally constrained and guided by guide rollers to follow the moving trajectory of the material strip. Since the material strip is often thin, the resistance between the material strip and the guide roller is often small, thereby making the friction between the material strip and the guide roller small. The material strip may slide on the guide roller, thereby causing the stacking of the material strip to be misaligned, affecting the quality of the product. Summary of the invention

[0004] The object of the present invention is to provide a winding device for producing film capacitors so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a winding device for producing film capacitors, comprising a support plate installed in a device housing, a winding device body, a plurality of guide rollers and a plurality of unwinding rollers, wherein the winding device body is fixedly installed at the middle position of the front side of the bottom of the support plate, a plurality of unwinding rollers are relatively arranged at the front side of the top of the support plate, and the rear end of each unwinding roller rotates through the support plate, a plurality of guide rollers are relatively arranged between the plurality of unwinding rollers, and the rear end of each guide roller is rotatably connected to the support plate, and a stacking assembly is arranged between the plurality of unwinding rollers;

[0006] The stacking assembly includes a driving mechanism, the driving mechanism is arranged on the top side of the winding device body, a plurality of limiting cylinders are relatively arranged between the plurality of guide rollers, and the rear end of each limiting cylinder rotates and penetrates the support plate, the outer circumferential wall of the limiting cylinder is clearance-matched with the outer circumferential wall of the corresponding guide roller, a plurality of adsorption holes are arranged on the outer circumferential wall of the limiting cylinder in a circumferential array, an air pump is fixedly installed at the middle position on the rear side of the top end of the support plate, and the two air inlet ends of the air pump are connected and equipped with connecting pipes, and the two air inlet ends of each connecting pipe rotate and penetrate the rear end cylinder wall of the corresponding limiting cylinder, an impeller is fixedly installed at the rear end of the discharging roller, two air guide shells are relatively arranged on the left and right sides of the air pump, and each air guide shell is fixedly connected to the support plate, the impeller is located in the corresponding air guide shell, the two exhaust ends of the air pump are connected and installed with the air inlet end of the corresponding air guide shell through the exhaust pipe, a cleaning mechanism is commonly provided on the left and right sides of the plurality of limiting cylinders, and a collecting mechanism is provided below the cleaning mechanism.

[0007] Preferably, a pressure limiting valve is provided at the front end of the limiting cylinder, and the exhaust end of the pressure limiting valve is fixedly penetrated through the front end cylinder wall of the corresponding limiting cylinder.

[0008] Preferably, the driving mechanism includes two driving rollers, which are relatively arranged between the winding device body and a plurality of limiting cylinders, and the rear end of each driving roller rotates through the support plate, and a driver is fixedly installed at the position of the driving roller on the rear side of the support plate, and the two driving ends of the driver are respectively fixedly connected to the rear ends of the two driving rollers, and the outer peripheral walls of the two driving rollers are gap-matched.

[0009] Preferably, a plurality of limit plates are arranged relatively between the limit cylinders, and the rear end of each limit plate is fixedly connected to the support plate, the limit plates are arranged vertically, and the top side of the limit plates is arranged in an arc shape and contacts the outer peripheral wall of the corresponding limit cylinder.

[0010] Preferably, the cleaning mechanism includes a plurality of sponge sleeves, and two rotating shafts are provided from top to bottom between the corresponding two guide rollers, and the rear end of each rotating shaft rotates and penetrates the wall of the support plate, the sponge sleeve is fixedly sleeved on the outer peripheral side of the corresponding rotating shaft, and the rear end of the sponge sleeve is connected to the front side of the support plate, and the outer peripheral walls of two adjacent sponge sleeves are gap-matched.

[0011] Preferably, the rear end fixing sleeve of the limiting cylinder is provided with a gear ring, the outer peripheral side of the gear ring is meshed with a first transmission gear, the outer peripheral side of the first transmission gear is meshed with a second transmission gear, and the first transmission gear and the second transmission gear are both rotatably connected to the support plate, the rear end fixing sleeve of the rotating shaft is provided with a driving gear, and the second transmission gear is located between the corresponding two driving gears, and the second transmission gear is meshed with the corresponding two driving gears, the diameter of the gear ring is larger than the diameter of the first transmission gear, and the diameter of the first transmission gear is larger than the diameter of the second transmission gear and the diameter of the driving gear.

[0012] Preferably, a U-shaped suction groove is provided between the sponge sleeve and the corresponding guide roller, and the part of the sponge sleeve close to the air inlet of the corresponding suction groove is inserted into the air inlet of the corresponding suction groove and is slidably connected to the inner wall of the air inlet of the corresponding suction groove, both ends of the suction groove are fixedly connected to the support plate, a conduit is provided between the suction groove and the corresponding limiting cylinder, and one end of the conduit is fixedly passed through the groove wall of the corresponding suction groove, and the other end of the conduit is in contact with the outer peripheral wall of the corresponding limiting cylinder, the conduit is located below the corresponding guide roller, and the rear end of the conduit is fixedly connected to the support plate.

[0013] Preferably, two airbags are relatively fixedly installed in the suction trough, and the side walls of each airbag are wavy in shape, a push plate is fixedly installed on the inner wall of the airbag, and a plurality of first springs are provided between the push plate and the inner wall of the corresponding suction trough, and the intervals between two adjacent first springs are equal, and the two ends of the first spring are respectively fixedly connected to the corresponding push plate and the inner wall of the corresponding suction trough, and a plurality of air inlet holes are relatively opened on the outer wall of the suction trough at the positions corresponding to the airbags, and the interior of each air inlet hole is communicated with the interior of the corresponding airbag.

[0014] Preferably, the collecting mechanism includes a storage box, which is arranged below the driver and fixedly connected to the support plate. The exhaust end of the air guide shell is connected to an air intake pipe, and the exhaust end of the air intake pipe is fixedly passed through the wall of the storage box. A filter plate is provided in the storage box, and the filter plate is located above the exhaust end of the air intake pipe.

[0015] Preferably, the outer peripheral wall of the filter plate is in contact with the inner wall of the storage box, and limit blocks are provided at the four corners of the bottom side of the filter plate, and each limit block is fixedly connected to the inner wall of the storage box. A second spring is provided on the top side of the filter plate, and the two ends of the second spring are respectively fixedly connected to the filter plate and the inner wall of the storage box.

[0016] The present invention has at least the following beneficial effects:

[0017] 1. When the improved film capacitor winding device is in use, a relatively stable negative pressure cavity can be formed inside the limiting roller, thereby applying an adsorption constraint force to part of the material strip on the outer peripheral side of the limiting cylinder, so that the material strip will not slide with the limiting cylinder, thereby avoiding misalignment during the stacking of several material strips. At the same time, the airflow can continuously apply an axial thrust to the unwinding roller through the impeller to straighten the material strip, and the thrust exerted on the unwinding roller can be adjusted by the size of the airflow, so that the device can adapt to the winding operation of material strips of various specifications. The tension exerted on the material strip is constant and will not cause the unwinding roller to get stuck, thereby avoiding the situation where the material strip is subjected to excessive tension, causing the material strip to be deformed or damaged.

[0018] 2. During the movement of the above-mentioned material belt, due to the friction between the material belt and the limiting cylinder, the limiting cylinder rotates synchronously with the movement of the material belt, and the rotating limiting cylinder synchronously drives the cleaning mechanism to operate to wipe the surface of the material belt to avoid dust and impurities occasionally adhering to the surface of the material belt and affecting the quality of the product. The dust and debris swept off the material belt are injected into the collecting mechanism together with the gas and are intercepted and stored in the collecting mechanism to avoid the dust and debris from floating with the airflow and adhering to the subsequent material belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is an overall schematic diagram of the present invention;

[0021] Figure 2 For the present invention Figure 1 A front view of

[0022] Figure 3 For the present invention Figure 1 Schematic diagram of the overall structure of the reverse side;

[0023] Figure 4 For the present invention Figure 1 Rear view of

[0024] Figure 5 It is a schematic diagram of the overall structure of the air pump and the air guide housing of the present invention;

[0025] Figure 6 It is a schematic diagram of the overall structure of the driving roller and the driver of the present invention;

[0026] Figure 7 It is a schematic diagram of the overall structure of the limiting cylinder and the sponge sleeve of the present invention;

[0027] Figure 8 It is a schematic diagram of the overall structure of the unwinding roller and the impeller of the present invention;

[0028] Fig. 9 For the present invention Figure 7 A front view of

[0029] Fig.10 It is a rear view of the sponge sleeve, the suction trough and the conduit of the present invention;

[0030] Fig.11 It is a schematic diagram of the overall structure of the suction trough and the conduit of the present invention;

[0031] Fig.12 It is a front view of the gear ring and the driving gear of the present invention;

[0032] Fig.13 It is a schematic diagram of the internal structure of the suction pipe of the present invention;

[0033] Fig.14 It is a front view of the internal structure of the suction pipe of the present invention;

[0034] Fig.15 It is a schematic diagram of the internal structure of the material storage box of the present invention.

[0035] In the figure: 1. support plate; 2. winding device body; 3. guide roller; 4. unwinding roller; 5. stacking assembly; 51. driving mechanism; 511. driving roller; 512. driver; 52. limiting cylinder; 53. adsorption hole; 54. pressure limiting valve; 55. impeller; 56. air guide shell; 57. limiting plate; 58. air pump; 59. connecting pipe; 6. cleaning mechanism; 61. rotating shaft; 62. sponge sleeve; 63. gear ring; 64. first transmission gear; 65. second transmission gear; 66. driving gear; 67. suction groove; 68. conduit; 69. air bag; 610. push plate; 611. first spring; 612. air inlet; 7. collecting mechanism; 71. storage box; 72. air inlet pipe; 73. filter plate; 74. limiting block; 75. second spring. DETAILED DESCRIPTION

[0036] In order to make the technical solutions 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 used to limit the present invention.

[0037] The present invention provides a technical solution: referring to Figure 1 - Fig.15The present invention discloses a winding device for producing film capacitors, comprising a support plate 1 installed in a device housing, a winding device body 2, a plurality of guide rollers 3 and a plurality of unwinding rollers 4, wherein the winding device body 2 is fixedly installed at the middle position of the front side of the bottom of the support plate 1, the plurality of unwinding rollers 4 are relatively arranged at the front side of the top of the support plate 1, and the rear end of each unwinding roller 4 rotates through the support plate 1, the plurality of guide rollers 3 are relatively arranged between the plurality of unwinding rollers 4, and the rear end of each guide roller 3 is rotatably connected to the support plate 1, and a stacking assembly 5 is arranged between the plurality of unwinding rollers 4;

[0038] The stacking assembly 5 includes a driving mechanism 51, which is arranged on the top side of the winding device body 2. A plurality of limiting cylinders 52 are arranged between the plurality of guide rollers 3, and the rear end of each limiting cylinder 52 rotates to penetrate the support plate 1. The outer peripheral wall of the limiting cylinder 52 is gap-matched with the outer peripheral wall of the corresponding guide roller 3. A plurality of adsorption holes 53 are arranged on the outer peripheral wall of the limiting cylinder 52 in a circumferential array. An air pump 58 is fixedly installed at the middle position of the rear side of the top of the support plate 1, and the two air inlet ends of the air pump 58 are connected and equipped with a connecting pipe 59, and each The two air inlet ends of the connecting pipe 59 are rotated to penetrate the rear end wall of the corresponding limiting cylinder 52, the rear end of the discharge roller 4 is fixedly installed with an impeller 55, and two air guide shells 56 are relatively arranged on the left and right sides of the air pump 58, and each air guide shell 56 is fixedly connected to the support plate 1, and the impeller 55 is located in the corresponding air guide shell 56. The two exhaust ends of the air pump 58 are connected and installed with the air inlet end of the corresponding air guide shell 56 through the exhaust pipe, and a cleaning mechanism 6 is commonly provided on the left and right sides of the limiting cylinders 52, and a collecting mechanism 7 is provided below the cleaning mechanism 6.

[0039] In this embodiment, when the improved film capacitor winding device is used, the operator first puts the material roll on the unwinding roller 4, then the operator pulls out the end of the material belt, and passes the material belt around the guide roller 3 and passes between the two sponge sleeves 62, then passes through the gap between the limiting roller 52 of the guide tube 68 and the limiting cylinder 52, and passes through between several limiting cylinders 52, and finally passes through the gap between the two driving rollers 511, so that several material belts are stacked together in sequence, and the ends of several material belts are installed on the winding roller in the winding device body 2, and the feeding operation of the device is completed;

[0040] After the loading operation of the device is completed, the operator starts the air pump 58 to continuously extract the gas in the limiting cylinder 52 through the connecting pipe 59. At this time, the external gas continuously flows into the limiting cylinder 52 through the adsorption hole 53 to replenish the lost gas in the limiting cylinder 52. A relatively stable negative pressure cavity is formed in the limiting cylinder 52, and then an adsorption constraint force can be applied to part of the material strip on the outer peripheral side of the limiting cylinder 52, so that the material strip will not slide with the limiting cylinder 52, thereby avoiding the misalignment of several material strips during the stacking process;

[0041] The gas sucked by the air pump 58 is injected into the air guide housing 56 through the exhaust pipe. Due to the constraint of the air guide housing 56, the gas flows along a fixed trajectory in the air guide housing 56 and is discharged from the air guide housing 56 through the exhaust end of the air guide housing 56. The gas flowing in the air guide housing continuously blows on the impeller 55, which can exert an axial thrust on the impeller 55, thereby causing the unwinding roller 4 to synchronously reel in the material strip to straighten the material strip. By adjusting the amount of gas discharged by the air pump 58, the size of the axial thrust on the impeller 55 can be adjusted, thereby enabling the device to adapt to the winding operation of material strips of various specifications.

[0042] After the start-up operation of the air pump 58 is completed, the operator starts the driving mechanism 51 to push the stacked tape downward, and then the pulling force of the tape on the material roll offsets the axial pushing force of the airflow on the unwinding roller 4, and the unwinding roller 4 slowly rotates so that the material roll gradually unwinds the tape, and finally the stacked tape is gradually sent into the winding device body 2 for the winding operation of the film capacitor, and the tape will not be subjected to a large pulling force to cause the tape to be deformed or damaged;

[0043] As the material belt is pulled, due to the friction between the material belt and the limiting cylinder 52, the limiting cylinder 52 rotates synchronously with the movement of the material belt, and the rotating limiting cylinder 52 synchronously drives the cleaning mechanism 6 to operate to wipe the surface of the material belt to prevent dust and impurities from occasionally adhering to the surface of the material belt and affecting the quality of the product. The dust and debris swept off the material belt are injected into the collecting mechanism 7 together with the gas, and are intercepted and stored in the collecting mechanism 7 to prevent the dust and debris from floating again with the airflow and adhering to the subsequent material belt.

[0044] In a further preferred embodiment of the present invention, Figure 7 As shown, a pressure limiting valve 54 is provided at the front end of the limiting cylinder 52, and the exhaust end of the pressure limiting valve 54 is fixedly penetrated through the front end cylinder wall of the corresponding limiting cylinder 52;

[0045] In the present embodiment, when the air pump 58 extracts the gas in the limiting cylinder 52, the outside gas continuously flows into the limiting cylinder 52 through the adsorption hole 53 to supplement the lost gas in the limiting cylinder 52, and since the amount of gas passing through the adsorption hole 53 is limited, the air pressure in the limiting cylinder 52 gradually decreases. After the negative pressure intensity in the limiting cylinder 52 exceeds the threshold value, the pressure difference at both ends of the pressure limiting valve 54 also exceeds the threshold value simultaneously. At this time, the outside gas will flow into the limiting cylinder 52 through the pressure limiting valve 54 to supplement the other part of the gas lost in the limiting cylinder 52, and finally the negative pressure intensity in the limiting cylinder 52 is maintained within an appropriate range, so that the material belt is subjected to a relatively stable adsorption constraint force.

[0046] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 , Figure 4 and Figure 6As shown, the driving mechanism 51 includes two driving rollers 511, which are relatively arranged between the winding device body 2 and a plurality of limiting cylinders 52, and the rear end of each driving roller 511 rotates and penetrates the support plate 1, and a driver 512 is fixedly installed at the position of the rear side of the support plate 1 corresponding to the driving roller 511, and the two driving ends of the driver 512 are respectively fixedly connected to the rear ends of the two driving rollers 511, and the outer peripheral walls of the two driving rollers 511 are gap-matched;

[0047] In this embodiment, after the loading operation of the above-mentioned device is completed, the operator starts the driver 512 to drive the two driving rollers 511 to rotate towards each other at a uniform speed. Due to the clamping of the driving roller 511 on the material belt, the rotating driving wheel can push the stacked material belt downward, and the pushing effect on the material belt is stable, so that the pulling of the material belt on the unloading roller 4 can offset the axial driving force exerted by the airflow on the unloading roller 4, and perform a stable unloading operation to avoid the material belt slipping on the driving roller 511 and affecting the use of the device.

[0048] In a further preferred embodiment of the present invention, Figure 7 and Fig. 9 As shown, a plurality of limiting plates 57 are arranged between the plurality of limiting cylinders 52, and the rear end of each limiting plate 57 is fixedly connected to the support plate 1, the limiting plates 57 are arranged vertically, and the top side of the limiting plates 57 is arranged in an arc shape and contacts the outer peripheral wall of the corresponding limiting cylinder 52;

[0049] In this embodiment, when the above-mentioned material belt moves to the position of the limiting plate 57, the limiting plate 57 is gradually inserted between the material belt and the limiting cylinder 52, so as to peel the material belt from the limiting cylinder 52, thereby avoiding the material belt being unable to be separated from the limiting cylinder 52 due to the pulling force of the adsorption force, which affects the stacking operation of the material belt.

[0050] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 and Figure 7 As shown, the cleaning mechanism 6 includes a plurality of sponge sleeves 62, two rotating shafts 61 are provided from top to bottom between the corresponding two guide rollers 3, and the rear end of each rotating shaft 61 rotates through the plate wall of the support plate 1, and the sponge sleeve 62 is fixedly sleeved on the outer peripheral side of the corresponding rotating shaft 61, and the rear end of the sponge sleeve 62 contacts the front side of the support plate 1, and the outer peripheral walls of two adjacent sponge sleeves 62 are gap-matched;

[0051] In this embodiment, during the movement of the material belt, the rotating shaft 61 synchronously drives the sponge cover 62 to rotate rapidly, and then the dust and debris on the material belt are swept off by the rotating sponge cover 62. The sponge cover 62 is relatively soft and almost no adsorption force is generated between the material belt and the material belt. The rotation of the sponge cover 62 almost does not cause damage to the material belt.

[0052] In a further preferred embodiment of the present invention, Figure 3, Figure 4 , Figure 7 , Fig. 9 and Fig.12 As shown, a toothed ring 63 is fixedly sleeved at the rear end of the limiting cylinder 52, a first transmission gear 64 is meshedly mounted on the outer circumference of the toothed ring 63, a second transmission gear 65 is meshedly mounted on the outer circumference of the first transmission gear 64, and both the first transmission gear 64 and the second transmission gear 65 are rotatably connected to the support plate 1, a driving gear 66 is fixedly sleeved at the rear end of the rotating shaft 61, and the second transmission gear 65 is located between the two corresponding driving gears 66, and the second transmission gear 65 is meshedly connected with the two corresponding driving gears 66, the diameter of the toothed ring 63 is larger than the diameter of the first transmission gear 64, and the diameter of the first transmission gear 64 is larger than the diameter of the second transmission gear 65 and the diameter of the driving gear 66;

[0053] In this embodiment, when the above-mentioned limit cylinder 52 rotates, it can drive the gears to rotate synchronously, thereby driving the driving gear 66 to rotate faster through the first transmission gear 64 and the second transmission gear 65. The rotating driving gear 66 drives the two sponge sleeves 62 to rotate towards each other faster through rotation. The operator does not need to set up a special driving structure, which reduces the overall volume of the device. When the operator inspects the device, he only needs to observe whether the sponge sleeve 62 is intact, which reduces the operator's work intensity.

[0054] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 , Figure 7 , Fig. 9 , Fig.10 and Fig.11 As shown, a suction groove 67 with a U-shape is provided between the sponge sleeve 62 and the corresponding guide roller 3, and the part of the sponge sleeve 62 close to the air inlet of the corresponding suction groove 67 is inserted into the air inlet of the corresponding suction groove 67 and is slidably connected to the inner wall of the air inlet of the corresponding suction groove 67, both ends of the suction groove 67 are fixedly connected to the support plate 1, a conduit 68 is provided between the suction groove 67 and the corresponding limiting cylinder 52, and one end of the conduit 68 is fixedly passed through the groove wall of the corresponding suction groove 67, and the other end of the conduit 68 is in contact with the outer peripheral wall of the corresponding limiting cylinder 52, the conduit 68 is located below the corresponding guide roller 3, and the rear end of the conduit 68 is fixedly connected to the support plate 1;

[0055] In this embodiment, during the rotation of the above-mentioned limit cylinder 52, the adsorption holes 53 can be aligned with the conduit 68 in sequence, so that the air pump 58 intermittently absorbs the gas in the suction groove 67 through the conduit 68, so that a negative pressure chamber is formed in the suction groove 67. At this time, the external gas passes through the holes on the sponge sleeve 62 located on the outside of the suction groove 67, and flows into the suction groove 67 from the holes on the sponge sleeve 62 located inside the suction groove 67 to replenish the gas in the suction groove 67, so that a smaller negative pressure state is formed in the holes at the contact position between the sponge sleeve 62 and the material belt. After the above-mentioned sponge sleeve 62 sweeps away the dust and debris on the material belt, the swept dust and debris will be adsorbed on the outer wall of the sponge sleeve 62, and brought into the suction groove 67 together with the rotation of the sponge sleeve 62, and then the sponge sleeve 62 is self-cleaned by the gas flowing out of the sponge sleeve 62, so as to avoid the adhesion of dust and debris to the contact position between the sponge sleeve 62 and the material belt and affect the cleaning effect of the material belt.

[0056] In a further preferred embodiment of the present invention, Figure 7 , Fig.10 , Fig.13 and Fig.14 As shown, two airbags 69 are relatively fixedly installed in the suction groove 67, and the side wall of each airbag 69 is wavy, a push plate 610 is fixedly installed on the inner wall of the airbag 69, and a plurality of first springs 611 are arranged between the push plate 610 and the inner wall of the corresponding suction groove 67, and the spacing between two adjacent first springs 611 is equal, and the two ends of the first spring 611 are respectively fixedly connected to the corresponding push plate 610 and the inner wall of the corresponding suction groove 67, and a plurality of air inlet holes 612 are relatively opened at the positions corresponding to the airbags 69 on the outer wall of the suction groove 67, and the interior of each air inlet hole 612 is communicated with the interior of the corresponding airbag 69;

[0057] In the present embodiment, as the gas in the suction groove 67 is lost, the airbag 69 is pushed by the external gas, and the airbag 69 expands, reducing the space in the suction groove 67, so that the negative pressure strength in the suction groove 67 will not be too large to affect the sliding of the material belt. When the adsorption hole 53 and the conduit 68 are misaligned and the air pump 58 stops absorbing the gas in the suction groove 67, the first spring 611 pulls the airbag 69 to contract through the push plate 610 to expand the space in the suction groove 67, thereby avoiding the inflow of gas causing the negative pressure cavity in the suction groove 67 to be too small, affecting the cleaning of the material belt by the sponge sleeve 62, and finally maintaining the negative pressure strength in the suction groove 67 in a relatively stable state.

[0058] In a further preferred embodiment of the present invention, Figure 1 , Figure 4 , Figure 5 and Fig.15As shown, the collecting mechanism 7 includes a storage box 71, which is arranged below the driver 512 and fixedly connected to the support plate 1. The exhaust end of the air guide shell 56 is connected to an air intake pipe 72, and the exhaust end of the air intake pipe 72 is fixedly passed through the wall of the storage box 71. A filter plate 73 is arranged in the storage box 71, and the filter plate 73 is located above the exhaust end of the air intake pipe 72.

[0059] In this embodiment, the dust and impurities swept from the material belt are brought into the storage box along with the air flow, and are finally intercepted and stored in the storage box by the filter plate 73 to prevent the dust and impurities from floating with the air flow and attaching to the subsequent material belt, thereby affecting the cleaning effect of the material belt.

[0060] In a further preferred embodiment of the present invention, Fig.15 As shown, the outer peripheral wall of the filter plate 73 contacts the inner wall of the material storage box 71, and the four corners of the bottom side of the filter plate 73 are provided with limit blocks 74, and each limit block 74 is fixedly connected to the inner wall of the material storage box 71, and the top side of the filter plate 73 is provided with a second spring 75, and the two ends of the second spring 75 are respectively fixedly connected to the filter plate 73 and the inner wall of the material storage box 71;

[0061] In this embodiment, the gas flowing in the storage box can exert a thrust on the filter plate 73 when the gas flows through the filter plate 73, and the filter plate 73 slides upward to compress the second spring 75 until the thrust of the second spring 75 on the filter plate 73 is equal to the thrust of the gas flow on the filter plate 73;

[0062] During the above film capacitor winding operation, the air pump 58 stops running for a certain period of time. Due to the push of the second spring 75 on the filter plate 73, the filter plate 73 moves down quickly and collides with the stop block 74, so that the filter plate 73 vibrates strongly, and the dust and debris attached to the hollow position on the bottom side of the filter plate 73 are shaken off, so as to perform self-cleaning of the filter plate 73.

[0063] After the above device is used, the operator removes the box cover on the storage box to clean the dust and impurities in the storage box.

[0064] Working principle: When the improved film capacitor winding device is used, the operator first unscrews the knob on the unwinding roller 4, then puts the material roll on the unwinding roller 4 and fixes the material roll on the unwinding roller 4 through the knob, and installs several material rolls in sequence according to the above, then the operator pulls out the end of the material belt, and passes the material belt around the guide roller 3 and passes between the two sponge sleeves 62, then passes through the gap between the limiting roller of the guide tube 68 and the limiting cylinder 52, and passes through several limiting cylinders 52, and finally passes through the gap between the two driving rollers 511, and installs the ends of several material belts on the winding roller in the winding device body 2, and the feeding operation of the device is completed;

[0065] It should be noted that after the installation of the above-mentioned material rolls is completed, the material strips on several material rolls are stably stacked together;

[0066] After the loading operation of the device is completed, the operator starts the air pump 58 to continuously extract the gas in the limiting cylinder 52 through the connecting pipe 59. At this time, the external gas continuously flows into the limiting cylinder 52 through the adsorption hole 53 to supplement the lost gas in the limiting cylinder 52. Since the amount of gas passing through the adsorption hole 53 is limited, the air pressure in the limiting cylinder 52 gradually decreases, and then an adsorption constraint force is applied to part of the material belt on the outer peripheral side of the limiting cylinder 52, so that the material belt will not slide with the limiting cylinder 52. After the negative pressure intensity in the limiting cylinder 52 exceeds the threshold value, the pressure difference at both ends of the pressure limiting valve 54 also exceeds the threshold value simultaneously. At this time, the external gas will flow into the limiting cylinder 52 through the pressure limiting valve 54 to supplement another part of the gas lost in the limiting cylinder 52, and finally the negative pressure intensity in the limiting cylinder 52 is maintained within a suitable range, so that the material belt is subjected to a relatively stable adsorption constraint force;

[0067] The gas sucked by the air pump 58 is injected into the air guide housing 56 through the exhaust pipe. Due to the constraint of the air guide housing 56, the gas flows along a fixed trajectory in the air guide housing 56 and flows into the air inlet pipe 72 from the exhaust end of the air guide housing 56. At this time, the flowing gas in the air guide housing 56 continuously blows on the impeller 55, which can apply an axial thrust to the impeller 55, thereby causing the unwinding roller 4 to synchronously reel in the material belt and straighten the material belt.

[0068] It should be noted that the axial thrust exerted on the impeller 55 can be adaptively adjusted as required, and it is only necessary to adjust the air intake of the air pump 58;

[0069] The gas flowing into the intake pipe 72 is directly introduced into the storage box 71, and then flows upward and is discharged from the top opening of the storage box 71. When the airflow passes through the filter plate 73, a thrust can be applied to the filter plate 73, and the filter plate 73 slides upward to compress the second spring 75 until the thrust of the second spring 75 on the filter plate 73 is equal to the thrust of the airflow on the filter plate 73;

[0070] After the start-up operation of the air pump 58 is completed, the operator starts the driver 512 to drive the two driving rollers 511 to rotate towards each other at a uniform speed. Due to the clamping of the material strip by the driving rollers 511, the rotating driving wheels can push the stacked material strip downward, and gradually send the stacked material strip into the winding device body 2 for winding the film capacitor;

[0071] As the material belt is pulled, due to the friction between the material belt and the limiting cylinder 52, the limiting cylinder 52 rotates synchronously with the movement of the material belt, so that the material belt and the limiting roller will not be relatively displaced to cause damage to the material belt;

[0072] When the material strip moves to the position of the limiting plate 57, the limiting plate 57 is gradually inserted between the material strip and the limiting cylinder 52, so that the material strip is peeled off from the limiting cylinder 52, so as to avoid the material strip being unable to be separated from the limiting cylinder 52 due to the pulling force of the adsorption force, which affects the stacking operation of the material strip;

[0073] During the rotation of the limiting cylinder 52, the adsorption holes 53 can be aligned with the conduit 68 in sequence, so that the air pump 58 intermittently absorbs the gas in the suction groove 67 through the conduit 68, so that a negative pressure cavity is formed in the suction groove 67. At this time, the external gas passes through the holes on the sponge cover 62 outside the suction groove 67, and flows into the suction groove 67 from the holes on the sponge cover 62 inside the suction groove 67 to replenish the gas in the suction groove 67, so as to form a smaller negative pressure state in the holes at the contact position between the sponge cover 62 and the material belt;

[0074] During the rotation of the limiting cylinder 52, the gear ring 63 can be synchronously driven to rotate, thereby driving the driving gear 66 to rotate more quickly through the first transmission gear 64 and the second transmission gear 65. The rotating driving gear 66 drives the two sponge sleeves 62 to rotate more quickly towards each other through the rotation. The rotating sponge sleeve 62 slides against the material belt, thereby sweeping away any dust and impurities that may remain on the material belt. The swept dust and impurities will be adsorbed on the outer wall of the sponge sleeve 62, and brought into the suction groove 67 together with the rotation of the sponge sleeve 62, and then brought into the storage box 71 together with the airflow, and finally intercepted by the filter plate 73 and stored in the storage box;

[0075] As the gas in the suction groove 67 is lost, the airbag 69 is pushed by the external gas, and the airbag 69 expands, reducing the space in the suction groove 67, so that the negative pressure strength in the suction groove 67 will not be too large to affect the sliding of the material belt. When the adsorption hole 53 and the conduit 68 are misaligned and the air pump 58 stops absorbing the gas in the suction groove 67, the first spring 611 pulls the airbag 69 to contract through the push plate 610 to expand the space in the suction groove 67, thereby avoiding the inflow of gas causing the negative pressure cavity strength in the suction groove 67 to be too small, affecting the cleaning of the material belt by the sponge sleeve 62, and finally maintaining the negative pressure strength in the suction groove 67 in a relatively stable state.

[0076] During the above-mentioned film capacitor winding operation, the air pump 58 stops running for a certain period of time. Due to the push of the second spring 75 on the filter plate 73, the filter plate 73 quickly moves down and collides with the limit block 74, so that the filter plate 73 vibrates strongly, and the dust and debris attached to the hollow position on the bottom side of the filter plate 73 are shaken off, so as to perform self-cleaning of the filter plate 73.

[0077] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A winding device for producing film capacitors, comprising a support plate installed in a device housing, a winding device body, a plurality of guide rollers and a plurality of unwinding rollers, wherein the winding device body is fixedly installed at the middle position of the front side of the bottom of the support plate, the plurality of unwinding rollers are relatively arranged at the front side of the top of the support plate, and the rear end of each unwinding roller rotates through the support plate, the plurality of guide rollers are relatively arranged between the plurality of unwinding rollers, and the rear end of each guide roller is rotatably connected to the support plate, and a stacking assembly is arranged between the plurality of unwinding rollers; The stacking assembly includes a driving mechanism, which is arranged on the top side of the winding device body, a plurality of limiting cylinders are relatively arranged between the plurality of guide rollers, and the rear end of each limiting cylinder rotates and penetrates the supporting plate, the outer peripheral wall of the limiting cylinder is gap-matched with the outer peripheral wall of the corresponding guide roller, and a plurality of adsorption holes are arranged on the outer peripheral wall of the limiting cylinder in a circumferential array, an air pump is fixedly installed at the middle position of the rear side of the top end of the supporting plate, and the two air inlet ends of the air pump are connected and equipped with connecting pipes, and the two air inlet ends of each connecting pipe rotate and penetrate the rear end cylinder wall of the corresponding limiting cylinder, an impeller is fixedly installed at the rear end of the unloading roller, two air guide shells are relatively arranged on the left and right sides of the air pump, and each air guide shell is fixedly connected to the supporting plate, the impeller is located in the corresponding air guide shell, the two exhaust ends of the air pump are connected and installed with the air inlet end of the corresponding air guide shell through the exhaust pipe, and a cleaning mechanism is commonly provided on the left and right sides of the plurality of limiting cylinders, the cleaning mechanism includes a sponge cover, and the rotating sponge cover sweeps off dust and debris on the material belt, and a collecting mechanism is provided below the cleaning mechanism; The driving mechanism includes two driving rollers, which are relatively arranged between the winding device body and a plurality of limiting cylinders, and the rear end of each driving roller rotates through the support plate, and a driver is fixedly installed at the position corresponding to the driving roller on the rear side of the support plate, and the two driving ends of the driver are respectively fixedly connected to the rear ends of the two driving rollers, and the outer peripheral walls of the two driving rollers are gap-matched.

2. A winding device for producing film capacitors according to claim 1, characterized in that: A pressure limiting valve is arranged at the front end of the limiting cylinder, and an exhaust end of the pressure limiting valve is fixedly penetrated through the front end cylinder wall of the corresponding limiting cylinder.

3. A winding device for producing film capacitors according to claim 2, characterized in that: A plurality of limit plates are arranged relatively between the limit cylinders, and the rear end of each limit plate is fixedly connected to the support plate. The limit plates are arranged vertically, and the top side of the limit plates is arranged in an arc shape and contacts the outer peripheral wall of the corresponding limit cylinder.

4. A winding device for producing film capacitors according to claim 1, characterized in that: Two rotating shafts are arranged from top to bottom between the two corresponding guide rollers, and the rear end of each rotating shaft rotates and penetrates the wall of the support plate. The sponge cover is fixedly sleeved on the outer peripheral side of the corresponding rotating shaft, and the rear end of the sponge cover contacts the front side of the support plate, and the outer peripheral walls of the two adjacent sponge covers are gap-matched.

5. A winding device for producing film capacitors according to claim 4, characterized in that: The rear end fixing sleeve of the limiting cylinder is provided with a gear ring, and the outer peripheral side of the gear ring is meshed with a first transmission gear, and the outer peripheral side of the first transmission gear is meshed with a second transmission gear, and the first transmission gear and the second transmission gear are both rotatably connected to the support plate, and the rear end fixing sleeve of the rotating shaft is provided with a driving gear, and the second transmission gear is located between the corresponding two driving gears, and the second transmission gear is meshed with the corresponding two driving gears, and the diameter of the gear ring is larger than the diameter of the first transmission gear, and the diameter of the first transmission gear is larger than the diameter of the second transmission gear and the diameter of the driving gear.

6. A winding device for producing film capacitors according to claim 5, characterized in that: A U-shaped suction groove is provided between the sponge sleeve and the corresponding guide roller, and the part of the sponge sleeve close to the air inlet of the corresponding suction groove is inserted into the air inlet of the corresponding suction groove and is slidably connected to the inner wall of the air inlet of the corresponding suction groove. Both ends of the suction groove are fixedly connected to the support plate, and a conduit is provided between the suction groove and the corresponding limiting cylinder, and one end of the conduit is fixedly passed through the groove wall of the corresponding suction groove, and the other end of the conduit is in contact with the outer peripheral wall of the corresponding limiting cylinder. The conduit is located below the corresponding guide roller, and the rear end of the conduit is fixedly connected to the support plate.

7. A winding device for producing film capacitors according to claim 6, characterized in that: Two airbags are relatively fixedly installed in the suction trough, and the side walls of each airbag are wavy in shape. A push plate is fixedly installed on the inner wall of the airbag, and a plurality of first springs are arranged between the push plate and the inner wall of the corresponding suction trough, and the intervals between two adjacent first springs are equal. The two ends of the first spring are respectively fixedly connected to the corresponding push plate and the inner wall of the corresponding suction trough. A plurality of air inlet holes are relatively opened on the outer wall of the suction trough at the positions corresponding to the airbags, and the interior of each air inlet hole is communicated with the interior of the corresponding airbag.

8. A winding device for producing film capacitors according to claim 1, characterized in that: The collecting mechanism includes a storage box, which is arranged below the driver and fixedly connected to the support plate. The exhaust end of the air guide shell is connected to an air intake pipe, and the exhaust end of the air intake pipe is fixedly passed through the box wall of the storage box. A filter plate is provided in the storage box, and the filter plate is located above the exhaust end of the air intake pipe.

9. A winding device for producing film capacitors according to claim 8, characterized in that: The outer peripheral wall of the filter plate contacts the inner wall of the storage box, and limit blocks are provided at the four corners of the bottom side of the filter plate, and each limit block is fixedly connected to the inner wall of the storage box. A second spring is provided on the top side of the filter plate, and the two ends of the second spring are respectively fixedly connected to the filter plate and the inner wall of the storage box.

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