A multi-layer oven capable of increasing capacitor cure time and methods of use thereof

Abstract

The application discloses a multi-layer oven capable of increasing capacitor curing time and a use method thereof, and the multi-layer oven comprises a box body, a blowing system and an electrical control system arranged at the lower part of the box body, a hot air circulating system connected with the blowing system and used for conveying hot air into a multi-layer feeding channel at the upper part of the box body, and an air outlet arranged at the top of the box body. The application increases the total length of the oven channel by using the layer-by-layer accumulation method without changing the original length of the oven, so that the capacitor is dried and fixed in the oven in an S-shaped motion track, the capacitor curing time is increased, and the problem that the capacitor curing time in the oven is too short is solved.

Description

Technical Field

[0001] This invention relates to the field of automated capacitor production technology, and in particular to a multi-layer oven that can increase the curing time of capacitors and its method of use. Background Technology

[0002] A capacitor consists of two conductors placed close together, with a non-conductive insulating medium sandwiched between them. When a voltage is applied between the two plates of a capacitor, the capacitor stores charge. The capacitance of a capacitor is numerically equal to the ratio of the charge on one of the conducting plates to the voltage between the two plates. Capacitors play an important role in circuits such as tuning, bypassing, coupling, and filtering.

[0003] With the continuous upgrading and replacement of electronic products, their functions and performance are constantly improving, and the requirements for capacitor production are also becoming increasingly stringent. Currently, capacitor curing is mainly carried out in an oven. However, existing ovens have too short a curing time for capacitors. Directly lengthening the oven to extend the oven passageway would not only occupy a large amount of production space, but also increase the resistance to movement of the aluminum strip carrier within the oven, easily leading to production problems such as product tipping over. Therefore, it is urgent to find other methods to solve the problem of insufficient curing time for capacitors in the oven. Summary of the Invention

[0004] In view of this, the present invention provides a multi-layer oven that can increase the curing time of capacitors and its method of use. By designing multiple rows and multiple layers of material channels in the oven, the total length of the oven channels is increased by accumulating layers without changing the original length of the oven, thereby solving the problem of the short curing time of capacitors in the oven.

[0005] A multi-layer oven capable of increasing the curing time of capacitors includes a chamber, a blowing system and an electrical control system disposed at the lower part of the chamber, a hot air circulation system connected to the blowing system to deliver hot air into the multi-layer feeding channel at the upper part of the chamber, and an air outlet disposed at the top of the chamber.

[0006] The feeding channel is equipped with a material support device at the inlet to prevent the material from tipping over when fed into the oven. The upper part of the oven has at least one row of multi-layer feeding channels that allow the material to form an S-shaped movement trajectory. Each feeding channel has a pusher at the inlet to push the material from the inlet to the outlet. The outlet has a carrier limiting device to correct the position of the material. A lifting device for transporting the material is provided between two adjacent feeding channels. The outlet of the uppermost or lowermost channel of the previous row of multi-layer feeding channels is equipped with a transport trolley to transfer the material to the next row of multi-layer feeding channels.

[0007] Preferably, the material support device includes a material support fixing block vertically fixed to the box body, a material support crossbeam fixed to the material support fixing block, a translation component disposed at the lower part of the material support crossbeam, and a material support lifting component disposed at the upper part of the material support crossbeam and capable of driving the translation component to move up and down.

[0008] The translation assembly includes a translational force element fixed to the inner wall of one end of the material support crossbeam, a pull rod shaft disposed on one side of the translational force element, a translational guide shaft fixed to the material support crossbeam and disposed below the translational force element, a translational slide seat slidably disposed on the translational guide shaft, a lifting slide shaft vertically passing through the translational slide seat, a first pull plate and a second pull plate respectively fixed to the bottom and top of the lifting slide shaft, a feed baffle fixed to the first pull plate, and a lifting wheel fixed to the second pull plate. The lifting wheel rests on the pull rod shaft, and a slider limiting push plate is fixed to the bottom of the translational force element. The lower end of the slider limiting push plate is locked on the translational guide shaft.

[0009] The material lifting assembly includes a first lifting power element fixed to the top of the material lifting crossbeam, a pull rod crossbeam fixed to the piston rod of the first lifting power element, and a lifting optical shaft fixed to one side of the pull rod crossbeam via a slider-type linear bearing. The bottom of the lifting optical shaft is fixed to one side of the material lifting crossbeam via an optical shaft support seat, and the top is fixed to a connecting seat via an optical shaft support seat. The connecting seat is fixed to the top of the material lifting crossbeam, and the two ends of the pull rod crossbeam are respectively fixed to the two ends of the pull rod shaft.

[0010] Preferably, the pushing device includes a set of pushing sliders fixed on the box body, a pushing guide rail slidably disposed on the pushing sliders, a push plate connected to the pushing guide rail via a guide rail connecting plate, and a pushing power element disposed between the two pushing guide rails for pushing the push plate to move. A set of correction power elements for correcting the material position is provided on the side of the push plate facing the pushing power element. The movable end of the correction power element can pass through the push plate to contact the material.

[0011] Preferably, the transport trolley includes a trailer base plate, a transport power element fixed to one end of the trailer base plate, a trailer plate disposed on the upper surface of the trailer base plate, a transmission screw fixed to the lower surface of the trailer base plate, and a transmission slider disposed on the screw of the transmission screw and fixed to its nut. The transport power element is connected to the screw of the transmission screw, and the transmission slider is fixed to the trailer plate through a sliding connecting block. The transmission screw is provided with a proximity switch for detecting the position of the trailer plate.

[0012] Preferably, the carrier limiting device includes a limiting fixing plate, limiting cylinders fixed at both ends on one side of the limiting fixing plate, and a rear baffle vertically fixed on the other opposite side of the limiting fixing plate. The piston rod of the limiting cylinder is provided with a correction rod, which faces the material feeding direction.

[0013] Preferably, the upper part of the box body has two rows of three-layer feeding channels. The lifting device for transporting materials between the first layer feeding channel and the second layer feeding channel includes a first lifting fixing plate fixed to the bottom of the limiting fixing plate of the carrier limiting device, a first fixing slider fixed to the first lifting fixing plate, a first sliding guide rail that passes vertically through the first lifting fixing plate and is slidably connected to the first fixing slider, a second lifting power element fixed to the first lifting fixing plate and whose movable end is connected to the first sliding guide rail, and a rear support plate fixed to the top of the movable end of the second lifting power element. Side baffles are fixed on both sides of the first lifting fixing plate, and a stop bolt for limiting the height position of the rear support plate is also fixed on the first lifting fixing plate.

[0014] The lifting device for transporting materials between the second and third feeding channels includes two sets of lifting components. The two sets of lifting components have the same structure, each including two second lifting fixed plates and second sliding guide rails fixed on the boxes on both sides of the feeding channel, a third lifting power element fixed on the second lifting fixed plate, and a lifting plate. Each end of the lifting plate is provided with a second fixed slider. The second fixed slider is fixed to the movable end of the third lifting power element and slidably connected to the second sliding guide rail. The lifting plates of the two sets of lifting components are respectively connected to the left and right rows of feeding channels.

[0015] Preferably, the blowing system includes a hot air blower and an air outlet pipe fixed to the air outlet of the hot air blower. The air outlet pipe is connected to a hot air circulation system, and the air outlet of the air outlet pipe is provided with a fan blade air regulating device for adjusting the air volume.

[0016] Preferably, the hot air circulation system includes a hot air duct and multiple hot air distribution pipes connected in parallel to the hot air duct via hot air duct joints. Each layer of the feeding channel has a hot air distribution pipe on its outer side. The upper and lower parallel hot air distribution pipes are connected through an air volume regulating shaft. The air volume regulating shaft is equipped with multiple dampers. The dampers are used to adjust the air volume and direction in their corresponding hot air distribution pipes so that the temperature at each position in the corresponding feeding channel is equal. Each hot air duct joint is equipped with a fan blade air regulating device for adjusting the air volume in its hot air distribution pipe.

[0017] Preferably, the fan blade air adjustment device includes a damper shaft fixed inside the duct, an adjusting fan blade fixed on the damper shaft, and a damper adjustment knob fixed outside the duct, with one end of the damper shaft extending out of the duct and thus fixed to the damper adjustment knob.

[0018] A method for using a multi-layer drying oven includes the following steps:

[0019] S1, place the material carrier at the inlet of the oven feeding channel, at which time the feeding baffle of the material support device is located on the feeding side of the material carrier;

[0020] S2, other equipment on the production line pushes the material into the material carrier in an orderly manner. The material pushes the feed baffle to move along the translation guide axis. When the feed baffle moves to the other side, the other equipment stops pushing the material, and the material support function is completed. At the same time, the material support lifting component drives the feed baffle back to the initial position.

[0021] S3, start the blowing system, and supply hot air to the multi-row, multi-layer feeding channels inside the oven through the hot air circulation system;

[0022] S4, the pushing device at the inlet of the first layer of the first row of feeding channels pushes the material carrier carrying the material into the channel. When the material carrier reaches the outlet of the channel, the carrier limiting device at the outlet aligns the position of the material carrier. Then, the lifting device at that position transports the material carrier to the second layer of feeding channels above it. The pushing device at the inlet of the second layer of feeding channels pushes the material carrier into the channel. This step is repeated, and the material carrier dries and cures according to the S-shaped movement trajectory until the material carrier reaches the outlet of the top layer of the first row of feeding channels.

[0023] When the material carrier reaches the outlet of the top layer of the first row of feeding channels, the transport trolley located at the outlet will move the material carrier horizontally to the second row of feeding channels on the same layer. Repeat the above steps to make the material carrier dry and solidify in an S-shaped motion trajectory until the material carrier reaches the outlet of the bottom layer of the second row of feeding channels. Repeat this process until the material carrier reaches the outlet of the oven feeding channel. At this point, the curing process of the material in the oven is completed.

[0024] The beneficial effects of this invention are:

[0025] This invention increases the total length of the oven's channels by designing multiple rows and layers of material channels within the oven, without altering the original length. This layer-by-layer accumulation method allows the capacitors to move along an S-shaped trajectory within the oven for drying and fixing, increasing the curing time and thus solving the problem of insufficient curing time for capacitors in the oven. Simultaneously, because the oven's length remains constant, it does not increase the moving resistance of the material carriers within the oven, preventing production problems such as product tipping. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of a multi-layer drying oven.

[0028] Figure 2 This is a structural diagram of a multi-layer oven with the side panels removed.

[0029] Figure 3 This is a side view of a multi-layer oven.

[0030] Figure 4 This is a schematic diagram of a multi-layer drying oven.

[0031] Figure 5 This is a schematic diagram of the translation component of the material support device moving from the right feed inlet to the left.

[0032] Figure 6 This is a schematic diagram of the material support device.

[0033] Figure 7 This is a schematic diagram of the translation component of the material support device.

[0034] Figure 8 This is a schematic diagram of the material lifting component of the material lifting device.

[0035] Figure 9 This is a schematic diagram of the slider limiting push plate in the translation component.

[0036] Figure 10 This is a schematic diagram of the feeding device.

[0037] Figure 11 This is a structural diagram of the transport trolley.

[0038] Figure 12 This is a structural diagram of the transport trolley.

[0039] Figure 13 This is a schematic diagram of the first type of lifting device.

[0040] Figure 14 This is a schematic diagram of the second type of lifting device.

[0041] Figure 15 This is a schematic diagram of the vehicle limiting device.

[0042] Figure 16 This is a schematic diagram of the blower system.

[0043] Figure 17 This is a schematic diagram of the hot air circulation system.

[0044] Figure 18 This is a schematic diagram of the structure of a hot air circulation system with a heat pipe removed.

[0045] The labels in the diagram mean:

[0046] 1 is the material support device; 1-1 is the material support fixing block; 1-2 is the material support crossbeam; 1-3 is the translation motor; 1-4 is the translation guide shaft; 1-5 is the tie rod shaft; 1-6 is the translation slide; 1-7 is the lifting slide shaft; 18 is the first pull plate; 19 is the second pull plate; 1-10 is the lifting wheel; 1-11 is the feeding push plate; 1-12 is the slider limit push plate; 1-13 is the lifting cylinder; 1-14 is the tie rod crossbeam; 1-15 is the slider linear bearing; 1-16 is the lifting optical shaft; 1-17 is the optical shaft support seat; 1-18 is the connecting seat; 1-19 is the photoelectric sensor.

[0047] 2 is the feeding device, 2-1 is the feeding slider, 2-2 is the feeding guide rail, 2-3 is the guide rail connecting plate, 2-4 is the push plate, 2-5 is the feeding power element, and 2-6 is the correction power element.

[0048] 3 is the transport trolley, 3-1 is the trailer base, 3-2 is the trailer plate, 3-3 is the transport power component, 3-4 is the nut, 3-5 is the screw, 3-6 is the transmission slider, 3-7 is the sliding connecting block, and 3-8 is the proximity switch.

[0049] 4 represents the lifting device; 4-1 is the lifting element fixing plate; 4-2 is the fixed slider; 4-3 is the sliding guide rail; 4-4 is the second lifting power element; 4-5 is the rear support plate; 4-6 is the side baffle; and 4-7 is the stop bolt.

[0050] 5 represents the housing, 51 represents the air outlet, 5-1 represents the second lifting element fixing plate, 5-2 represents the third lifting power element, 5-3 represents the second sliding guide rail, 5-4 represents the lifting plate, and 5-5 represents the second fixed slider.

[0051] 6 is the vehicle limiting device, 6-1 is the limiting fixing plate, 6-2 is the limiting cylinder, 6-3 is the rear baffle, and 6-4 is the alignment bar.

[0052] 7 represents the air blowing system, 7-1 is the hot air blower, 7-2 is the air outlet pipe, 7-3 is the damper shaft, and 7-4 is the damper adjustment knob.

[0053] 8 represents the electrical control system.

[0054] 9 represents the hot air circulation system; 9-1 is the hot air duct; 9-2 is the hot air duct connector; 9-3 is the heat distribution pipe; 9-4 is the airflow regulating shaft; and 9-5 is the damper plate.

[0055] 10 represents materials.

[0056] 11 is a material carrier.

[0057] 12 represents a multi-layer feeding channel. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of this invention clearer, the invention is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0059] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0060] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms and should not be construed as indicating or implying relative importance. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0061] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0062] To better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.

[0063] The present invention provides a multi-layer oven that can increase the curing time of capacitors, including a box body 5, a blowing system 7 and an electrical control system 8 disposed at the lower part of the box body 5, a hot air circulation system 9 connected to the blowing system 7 to deliver hot air into the multi-layer feeding channel at the upper part of the box body 5, and an air outlet 51 disposed at the top of the box body 5.

[0064] like Figure 1 , 2As shown in Figure 3, the upper part of the box 5 has at least one row of multi-layer feeding channels that allow the material to form an S-shaped movement trajectory. A material support device 1 is provided at the inlet of the entire feeding channel. Each feeding channel has a pusher device 2 at the inlet to push the material from the inlet to the outlet. The outlet has a carrier limiting device 6 to correct the position of the material. A lifting device 4 for transporting materials is provided between two adjacent feeding channels. The outlet of the uppermost or lowermost channel of the previous row of multi-layer feeding channels is provided with a transport trolley 3 for transferring the material to the next row of multi-layer feeding channels.

[0065] Since the material (capacitor) may be pushed over during the process of being pushed into the oven by other equipment, a material support device 1 is installed at the oven feed point to prevent the material fed into the oven from tipping over.

[0066] like Figure 5 As shown, the material support device 1 includes a material support fixing block 1-1 vertically fixed on the box body 5, a material support crossbeam 1-2 fixed on the material support fixing block 1-1, a translation component disposed at the lower part of the material support crossbeam 1-2, and a material support lifting component disposed at the upper part of the material support crossbeam 1-2 and capable of driving the translation component to move up and down. A feeding baffle 1-11 is fixed on the translation component. The feeding baffle 1-11 is used to block the material when it is pushed into the material carrier to prevent the material from being pushed over.

[0067] Specifically, such as Figure 6 , 7As shown, the translation assembly includes a translational force element 1-3 fixed to the inner side wall of one end of the material support crossbeam 1-2, a pull rod shaft 1-5 disposed on one side of the translational force element 1-3, a translational guide shaft 1-4 fixed to the material support crossbeam 1-2 and disposed below the translational force element 1-3, a translational slide 1-6 slidably disposed on the translational guide shaft 1-4, a lifting slide shaft 1-7 vertically passing through the translational slide 1-6, a first pull plate 1-8 and a second pull plate 1-9 respectively fixed to the bottom and top of the lifting slide shaft 1-7, a feed baffle 1-11 fixed to the first pull plate 1-8, and a lifting wheel 1-10 fixed to the second pull plate 1-9. The lifting wheel 1-10 rests on the pull rod shaft 1-5. A slider limiting push plate 1-12 is fixed to the bottom of the translational force element 1-3, and the lower end of the slider limiting push plate 1-12 is engaged with the translational guide shaft 1-4. When no material is being fed, the translational force element 1-3 and the translational slide 1-6 are located on different sides, that is, at both ends of the material support frame 1-2. When the material is pushed into the material carrier and feeding begins, the material pushes the feed baffle 1-11, causing the translational slide 1-6 to slide along the translational guide shaft 1-4. Since the feed baffle 1-11 blocks the material during feeding, the material can be prevented from being pushed over. When the material fills the entire material carrier, the feeding stops, and the material support function is completed. At this time, the translational slide 1-6 is in contact with the slider limit push plate 1-12 at the bottom of the translational force element 1-3. Then, the material support lifting mechanism pulls the feed baffle 1-11 up and brings it back to the feeding origin.

[0068] Preferably, the translation component may also be equipped with a photoelectric sensor 1-19 for monitoring whether the material has filled the material carrier. When the material fills the entire material carrier, the photoelectric sensor detects it and sends a signal to the electrical control system 8. The electrical control system 8 controls the material pushing to stop and simultaneously controls the material lifting component to start operating.

[0069] like Figure 6 , 8As shown, the material lifting assembly includes a first lifting power element 1-13 fixed to the top of the material lifting crossbeam 1-2, a pull rod crossbeam 1-14 fixed to the piston rod of the first lifting power element 1-13, and a lifting optical shaft 1-16 fixed to one side of the pull rod crossbeam 1-14 via a slider-type linear bearing 1-15. The bottom of the lifting optical shaft 1-16 is fixed to one side of the material lifting crossbeam 1-2 via an optical shaft support seat 1-17, and the top is fixed to a connecting seat 1-18 via an optical shaft support seat 1-17. The connecting seat 1-18 is fixed to the top of the material lifting crossbeam 1-2, and the two ends of the pull rod crossbeam 1-14 are respectively fixed to the two ends of the pull rod shaft 1-5. When no material is being fed, the first lifting power element 1-13 is in a retracted state, and the feeding baffle 1-11 is in a sunken state. When the material fills the entire material carrier, the piston rod of the first lifting power element 1-13 extends. Since the piston rod of the first lifting power element 1-13 is fixed to the pull rod shaft 1-5 through the pull rod crossbeam 1-14, the pull rod shaft 1-5 can be moved upward. At the same time, since the lifting wheel 1-10 is placed on the pull rod shaft 1-5, the upward movement of the pull rod shaft can drive the lifting slide shaft 1-7 to move upward synchronously. The lifting slide shaft 1-7 pulls the feeding baffle 1-11 upward, making its bottom higher than the top of the material. Then, the translational force element 1-3 moves (slides along its fixed rod). The slider limit push plate 1-12 at the bottom of the translational force element 1-3 pushes the translational slide 1-6 to slide synchronously along the translational guide shaft 1-4, thereby returning the feeding baffle 1-11 to the feeding origin, waiting for the material support action to be performed again.

[0070] In this embodiment, the first lifting power element 1-13 and the translational power element 1-3 are both cylinders. Preferably, the translational power element 1-3 is a rodless cylinder.

[0071] The movement of the material carrier within a single channel in the oven mainly relies on the pushing device 2, which is located at the inlet of each feeding channel.

[0072] like Figure 10 As shown, the feeding device 2 includes a set of feeding sliders 2-1 fixed on the housing 5, feeding guide rails 2-2 slidably disposed on the feeding sliders 2-1, a push plate 2-4 connected to the feeding guide rails 2-2 via a guide rail connecting plate 2-3, and a feeding power element 2-5 disposed between the two feeding guide rails 2-2 for pushing the push plate 2-4 to move. A set of correction power elements 2-6 for correcting the material position is provided on the side of the push plate 2-4 facing the feeding power element 2-5. The movable end of the correction power element 2-6 can pass through the push plate 2-4 to contact the material.

[0073] In this embodiment, the pushing power element 2-5 is an electric cylinder. When the piston rod of the pushing power element 2-5 extends, the pushing power element 2-5 can push the push plate 2-4 to move. The push plate 2-4 is in direct contact with the material carrier and pushes the material carrier to move along the feeding channel. The material carrier is dried and solidified during the movement in the feeding channel. When the material carrier moves to the outlet of a certain feeding channel, the piston rod of the pushing power element 2-5 extends to its maximum stroke.

[0074] In this embodiment, the correction power element 2-6 is a cylinder. Just as the push plate 2-4 comes into contact with the material carrier and before the pushing power element 2-5 pushes the material carrier forward, the piston rod of the correction power element 2-6 can pass through the push plate 2-4 and strike the material carrier forward to straighten the position of the material carrier.

[0075] When the pushing power element 2-5 pushes the material carrier to the outlet of a certain feeding channel, the carrier limiting device 6 is used to correct its position.

[0076] like Figure 15 As shown, the carrier limiting device 6 includes a limiting fixing plate 6-1, limiting cylinders 6-2 fixed at both ends on one side of the limiting fixing plate 6-1, and a rear baffle 6-3 vertically fixed on the other opposite side of the limiting fixing plate 6-1. The piston rod of the limiting cylinder 6-2 is provided with a correction rod 6-4, which faces the material feeding direction.

[0077] In this application, the limiting cylinder 6-2 is set at both ends of the limiting fixing plate 6-1. When the limiting cylinder 6-2 drives the correction rod 6-4 to strike the material carrier forward, it can ensure that the force on both sides of the material carrier is uniform, which is conducive to the correction of the material carrier and ensures the position accuracy of the material carrier, thereby preventing material spillage and jamming, and ensuring that the material carrier moves smoothly in the oven.

[0078] The transport trolley 3 is used to transport material carriers left and right, so as to horizontally transport the material carriers from one row of material channels to another adjacent row of material channels, so that the material can continue to dry and solidify in the adjacent row of material channels.

[0079] like Figure 11 , 12As shown, the transport trolley 3 includes a trailer base plate 3-1, a transport power element 3-3 fixed to one end of the trailer base plate 3-1, a trailer plate 3-2 disposed on the upper surface of the trailer base plate 3-1, a transmission screw fixed to the lower surface of the trailer base plate 3-1, and a transmission slider 3-6 disposed on the screw 3-5 of the transmission screw and fixed to its nut 3-4. The transport power element 3-3 is connected to the screw 3-5 of the transmission screw, and the transmission slider 3-6 is fixed to the trailer plate 3-2 through a sliding connecting block 3-7. A proximity switch 3-8 is provided on the transmission screw to detect the position of the trailer plate 3-2. When the transport power element 3-3 is activated, the transport power element 3-3 can cause the transmission slider 3-6 to move to the right along its screw 3-5 through the transmission screw. The transmission slider 3-6 can drive the trailer plate 3-2 to move synchronously to the right, thereby moving the material carrier placed on the trailer plate 3-2 to the material channel of another adjacent row on the same floor.

[0080] Since the interior of the box 5 is equipped with multiple material channels, when materials need to be transported from the lower layer to the upper layer or from the upper layer to the lower layer for further drying and curing, the lifting device 4 between the two adjacent material channels can be used for transportation.

[0081] The housing 5 of this application is equipped with two types of lifting devices 4.

[0082] like Figure 13 As shown, the first type of lifting device 4 includes a lifting fixing plate 4-1 fixed to the bottom of the limiting fixing plate 6-1 of the carrier limiting device 6, a fixing slider 4-2 fixed on the lifting fixing plate 4-1, a sliding guide rail 4-3 that passes vertically through the lifting fixing plate 4-1 and is slidably connected to the fixing slider 4-2, a lifting power element 4-4 fixed on the lifting fixing plate 4-1 and whose movable end is connected to the sliding guide rail 4-3, and a rear support plate 4-5 fixed to the top of the movable end of the lifting power element 4-4.

[0083] In this embodiment, the lifting power element 4-4 is a lifting cylinder. A cylinder connector is connected to the piston rod of the lifting cylinder. The cylinder connector is fixed to the lower end face of the rear support plate 4-5. A cylinder connecting block is fixed on the cylinder connector. The cylinder connecting block is fixed to the sliding guide rail 4-3 through the lifting connecting plate. The lifting connecting plate is a T-shaped plate.

[0084] When the piston rod of the lifting cylinder 4-4 extends, the cylinder joint of the lifting cylinder 4-4 is connected to the lifting connecting plate and the sliding guide rail 4-3 through the cylinder connecting block. Therefore, the lifting cylinder 4-4 can move the sliding guide rail 4-3 upward. The sliding guide rail 4-3 and the fixed slider 4-2 can play a lifting and guiding role. The lifting cylinder 4-4 can drive the rear support plate 4-5 to move up and down, thereby moving the material carrier placed on the rear support plate 4-5 to the material channel above or below it.

[0085] The rear support plate 4-5 is also provided with side baffles 4-6 on both sides, and the side baffles 4-6 are vertically fixed on the limiting and fixing plate 6-1.

[0086] Preferably, the side baffles 4-6 are also equipped with magnetic plates. To better insulate the oven, covers are installed at each of the front and rear passageways, providing a certain degree of airtightness. The covers are magnetically attached and can be directly attached to the magnetic plates of the side baffles 4-6. This magnetic fixing method also facilitates the installation and removal of the covers.

[0087] Preferably, an L-shaped side stop is fixed to each end of the rear support plate 4-5. This allows the two ends of the material carrier to be engaged in the grooves between the upper surface of the rear support plate 4-5 and the side stop, thereby limiting the material carrier and allowing it to enter and exit the channel at a designated position. The side stops at both ends of the rear support plate 4-5 only contact the side baffle 4-6, and the two are not fixed together.

[0088] Preferably, a stop bolt 4-7 is also fixed on the lifting fixing plate 4-1 to limit the reset height position of the rear support plate 4-5. In this embodiment, the lifting fixing plate 4-1 is Z-shaped.

[0089] like Figure 12 As shown, the second type of lifting device 4 includes two sets of lifting components. These two sets of lifting components are respectively aligned with different rows of material channels on the same floor. The two sets of lifting components do not need to perform lifting actions simultaneously as required. Both sets of lifting components have the same structure, including two second lifting fixing plates 5-1 and second sliding guide rails 5-3 fixed to the boxes on both sides of the feeding channel, a third lifting power element 5-2 fixed to the second lifting fixing plate 5-1, and a lifting plate 5-4. Each end of the lifting plate 5-4 is provided with a second fixed slider 5-5, which is fixed to the movable end of the third lifting power element 5-2 and slidably connected to the second sliding guide rail 5-3. The lifting plates 5-4 of both sets of lifting components are respectively connected to the left and right rows of feeding channels. Simultaneously activating the two third lifting power elements 5-2 in the lifting components causes the lifting plate 5-4 to move up and down, thereby moving the material carrier placed on the lifting plate 5-4 to the material channel above or below it.

[0090] Preferably, the two adjacent third lifting power elements of the two sets of lifting components of the second type of lifting device 4 can share a second lifting fixing plate 5-1.

[0091] like Figure 16As shown, the main function of the blowing system 7 is to heat the entire oven. The blowing system 7 includes a hot air blower 7-1 and an air outlet pipe 7-2 fixed to the air outlet of the hot air blower 7-1. The air outlet pipe 7-2 is connected to the hot air circulation system 9, and the air outlet of the air outlet pipe 7-2 is equipped with a fan blade adjustment device for adjusting the air volume. In this embodiment, multiple hot air blowers are installed inside the oven, and each hot air blower corresponds to a row of multi-layer material channels to heat its corresponding material channels. The hot air provided by the hot air blower 7-1 flows from the air outlet pipe 7-2 to the hot air circulation system 9. According to the number of layers of material channels in the oven, the corresponding air outlet pipe 7-2 can be selected. In this embodiment, the air outlet pipe 7-2 is a three-way pipe, which supplies hot air to the three layers of material channels respectively.

[0092] By installing a fan blade air regulating device at the air outlet of the air outlet 7-2, the heat supply can be regulated and controlled, thereby regulating the overall temperature inside the oven.

[0093] The fan blade air conditioning device includes a damper shaft 7-3 fixed inside the duct, an adjusting fan blade 7-3 fixed on the damper shaft 7-3, and a damper adjustment knob 7-4 fixed outside the duct. One end of the damper shaft 7-3 extends out of the duct and is fixed to the damper adjustment knob 7-4. By turning the damper adjustment knob 7-4, the angle position of the adjusting fan blade 7-5 can be adjusted, thereby controlling the air volume at the air outlet.

[0094] The hot air circulation system 9 is the core system of the entire oven and is an important prerequisite for product curing. By adjusting the air volume and direction, the temperature of the entire oven is kept consistent, so that the products entering the oven can undergo the curing process in a constant temperature environment.

[0095] like Figure 17 , 18 As shown, the hot air circulation system 9 includes a hot air duct 9-1 and multiple hot air distribution pipes 9-3 connected in parallel to the hot air duct 9-1 via hot air duct connectors 9-2. Each layer of the feeding channel 11 has a hot air distribution pipe 9-3 installed on the outer side of its channel wall, and the channel wall has several round holes to facilitate the flow of hot air into the feeding channel. The upper and lower parallel hot air distribution pipes 9-3 are connected by an airflow regulating shaft 9-4. The airflow regulating shaft 9-4 has multiple dampers 9-5, which are used to adjust the airflow and direction within their corresponding hot air distribution pipes 9-3 to ensure equal temperatures at various locations within the corresponding feeding channel. Each hot air duct connector 9-2 is equipped with a fan blade adjusting device to regulate the airflow within its hot air distribution pipe 9-3. The fan blade adjusting device in the hot air duct connector 9-2 has the same structure as the fan blade adjusting device in the air outlet pipe 7-2 of the blowing system 7.

[0096] The fan blade adjustment device installed inside the hot air duct connector 9-2 can adjust the flow rate of hot air entering each hot air distribution pipe 9-3. The damper plate 9-5 located inside the hot air distribution pipe 9-3 can adjust the air volume and airflow to make the temperature at different locations within the hot air distribution pipe 9-3 equal and to keep the temperature at each location within the hot air distribution pipe constant.

[0097] When the hot air provided by the blowing system 7 flows into the hot air circulation system 9 through its outlet pipe 7-2, the hot air flows from bottom to top into each hot air distribution pipe 9-3 through each hot air pipe joint 9-2, and then flows into the inside of the feeding channel through the round hole on the channel wall. Multiple thermocouples can also be installed in the feeding channel. Usually, 10 thermocouples are required in one channel to monitor the temperature inside the channel in real time and facilitate the adjustment of the drying temperature.

[0098] like Figure 4 As shown, the oven body 5 is assembled from sheet metal parts and is used to install and support the aforementioned mechanisms and systems. The internal space of the oven body is divided into upper and lower parts. The lower space is used to install the blowing system 7 and the electrical control system, while the upper space is a multi-layer material channel. The oven is equipped with two centrifugal fans, whose main function is to draw out the hot air from the oven and form a hot air circulation. The air outlet 51 at the top of the oven can not only exhaust the hot air from the oven but also serve to exhaust oil fumes, preventing oil fumes from remaining in the oven and falling on the materials and products, causing product defects.

[0099] The top of the chamber 5 is equipped with a fan inlet and an air outlet 51. The number and location of the fan inlet and air outlet 51 can be modified as needed. The cover and side panels of the chamber 5 are double-layered hollow insulated sheet metal parts, which can effectively improve the insulation effect and play a certain role in heat insulation. The side panels of the chamber 5 are equipped with insulation adjustment windows. By opening the insulation adjustment windows, the fan blade adjustment device on the hot air pipe connector 9-2 can be manually adjusted to keep the drying temperature in the three-layer material channel consistent.

[0100] To facilitate the movement and securing of the equipment, the bottom of the housing 5 is also equipped with eight supports and eight casters.

[0101] This invention also provides a method for using a multi-layer drying oven, specifically including the following steps:

[0102] S1, a material carrier is placed at the inlet of the oven feeding channel, and at this time the feeding baffle 1-11 of the material support device 1 is located on the feeding side of the material carrier;

[0103] S2, other equipment on the production line pushes the material into the material carrier in an orderly manner. The material pushes the feed baffle 1-11 to move along the translation guide shaft 1-4. When the feed baffle 1-11 moves to the other side, the other equipment stops pushing the material, and the material support function is completed. At the same time, the material support lifting component drives the feed baffle 1-11 back to the initial position.

[0104] S3, start the blowing system 7, and supply hot air to the multi-row, multi-layer feeding channels inside the oven through the hot air circulation system 9;

[0105] S4, the pushing device 2 at the inlet of the first layer of the first row of feeding channels pushes the material carrier carrying the material into the channel. When the material carrier reaches the outlet of the channel, the carrier limiting device 6 at the outlet aligns the position of the material carrier. Then, the lifting device 4 at that position transports the material carrier to the second layer of feeding channels above it. The pushing device 2 at the inlet of the second layer of feeding channels pushes the material carrier into the channel. This step is repeated. The material carrier dries and cures according to the S-shaped movement trajectory until the material carrier reaches the outlet of the top layer of the first row of feeding channels.

[0106] When the material carrier reaches the outlet of the top layer of the first row of feeding channels, the transport trolley 3 located at the outlet moves the material carrier horizontally to the second row of feeding channels on the same layer. The above steps are repeated so that the material carrier moves in an S-shaped trajectory to dry and solidify until the material carrier reaches the outlet of the bottom layer of the second row of feeding channels. This process is repeated until the material carrier reaches the outlet of the oven feeding channel. At this point, the curing process of the material in the oven is completed.

[0107] The multi-layer drying oven of the present invention will be described in detail below by way of example. In this example, the drying oven is provided with two rows of feeding channels on the left and right. Each row of feeding channels has three layers. The lifting device for transporting materials between the first layer and the second layer adopts the first type of lifting device mentioned above. The lifting device for transporting materials between the second layer and the third layer adopts the second type of lifting device mentioned above. Assume that the three layers of feeding channels on the left are channels A, B and C in sequence, and the three layers of feeding channels on the right are channels D, E and F in sequence. The material support device 1 is set at the feed inlet of channel A.

[0108] The movement sequence of the material carrier within the above six channels is as follows:

[0109] Other equipment on the production line pushes the capacitors (materials) into the material carrier in sequence. During the pushing process, the supporting device 1 supports the capacitors to prevent them from tipping over.

[0110] After the material is supported, the pushing device 2 at the inlet of channel A pushes the material carrier to the end of channel A (outlet). The carrier limiting device 6 at the end of channel A straightens the material carrier. Then, the second-level lifting device (the first type of lifting device mentioned above) at the end of channel A lifts the material carrier to the second-level channel B, reaching the inlet of channel B.

[0111] The pushing device 2 at the feed inlet of channel B pushes the material carrier forward, and pushes it forward in sequence until it reaches the discharge port at the front end of channel B. When it reaches the discharge port, the carrier limiting device 6 at the front end of channel B will straighten the material carrier. Then, the three-layer lifting device (the second type of lifting device mentioned above) at the front end of channel B will lift the material carrier to the third layer channel C, reaching the feed inlet of channel C.

[0112] The pushing device 2 at the feed inlet of channel C pushes the material carrier forward, and pushes it forward in sequence until it reaches the end of channel C (discharge port). Once in place, the transport trolley 3 at the end of channel C transports the material carrier to the right to the feed inlet at the end of channel D.

[0113] The pushing device 2 at the feed inlet of channel D pushes the material carrier towards the front end of channel D. The carrier is pushed forward in sequence until it reaches the discharge outlet at the front end of channel D. The carrier limiting device 6 at the discharge outlet of channel D then straightens the material carrier. The three-layer lifting device (the second type of lifting device mentioned above) at the discharge outlet of channel D then transports it downward to the feed inlet at the front end of channel E.

[0114] The pushing device 2 at the feed inlet at the front end of channel E pushes the material carrier toward the end of the channel. The carrier is pushed to the discharge outlet at the end of channel E. The carrier limiting device 6 at the discharge outlet at the end of channel E then straightens the material carrier. The second-layer lifting device (the first type of lifting device mentioned above) at the discharge outlet at the end of channel E then lowers the material carrier to the feed inlet at the end of channel F.

[0115] The pushing device 2 at the feed inlet at the end of channel F pushes the material carrier towards the front end of channel F. The material carrier is pushed forward in sequence until it reaches the discharge outlet at the front end of channel F. Once the material carrier is in place, the curing process of the product in the oven is completed.

[0116] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. A multi-layer oven capable of increasing the curing time of capacitors, characterized in that, It includes a housing (5), a blowing system (7) and an electrical control system (8) located at the bottom of the housing (5), a hot air circulation system (9) connected to the blowing system (7) to deliver hot air to the multi-layer feeding channel (11) at the top of the housing (5), and an air outlet (51) located at the top of the housing (5). Among them, the feeding channel is provided with a material support device (1) to prevent the material fed into the oven from tipping over. The upper part of the box body (5) is formed with at least one row of multi-layer feeding channels that can make the material form an S-shaped movement trajectory. Each feeding channel is provided with a pushing device (2) to push the material from the inlet to the outlet. The outlet is provided with a carrier limiting device (6) to correct the position of the material. A lifting device (4) to transport the material is provided between two adjacent feeding channels. The outlet of the uppermost or lowermost channel of the previous row of multi-layer feeding channels is provided with a transport trolley (3) to transfer the material to the next row of multi-layer feeding channels. The material support device (1) includes a material support fixing block (1-1) vertically fixed on the box body (5), a material support crossbeam (1-2) fixed on the material support fixing block (1-1), a translation component set at the lower part of the material support crossbeam (1-2), and a material support lifting component set at the upper part of the material support crossbeam (1-2) and capable of driving the translation component to move up and down; The carrier limiting device (6) includes a limiting fixing plate (6-1), limiting cylinders (6-2) fixed at both ends on one side of the limiting fixing plate (6-1), and a rear baffle (6-3) vertically fixed on the other opposite side of the limiting fixing plate (6-1). The piston rod of the limiting cylinder (6-2) is provided with a correction rod (6-4), which faces the material feeding direction.

2. The multi-layer oven capable of increasing capacitor curing time according to claim 1, characterized in that, The translation assembly includes a translational force element (1-3) fixed to the inner wall of one end of the support frame (1-2), a pull rod shaft (1-5) disposed on one side of the translational force element (1-3), a translational guide shaft (1-4) fixed on the support frame (1-2) and disposed below the translational force element (1-3), a translational slide (1-6) slidably disposed on the translational guide shaft (1-4), and a lifting slide shaft (1-7) vertically passing through the translational slide (1-6), which is respectively fixed to the lifting... The slide shaft (1-7) has a first pull plate (1-8) and a second pull plate (1-9) at the bottom and top, a feed baffle (1-11) fixed on the first pull plate (1-8), and a lifting wheel (1-10) fixed on the second pull plate (1-9). The lifting wheel (1-10) rests on the pull rod shaft (1-5). The bottom of the translational force element (1-3) is fixed with a slider limiting push plate (1-12). The lower end of the slider limiting push plate (1-12) is stuck on the translational guide shaft (1-4). The material lifting assembly includes a first lifting power element (1-13) fixed to the top of the material lifting crossbeam (1-2), a pull rod crossbeam (1-14) fixed to the piston rod of the first lifting power element (1-13), and a lifting optical shaft (1-16) fixed to one side of the pull rod crossbeam (1-14) by a slider-type linear bearing (1-15). The bottom of the lifting optical shaft (1-16) is fixed to one side of the material lifting crossbeam (1-2) by an optical shaft support seat (1-17), and the top is fixed to a connecting seat (1-18) by an optical shaft support seat (1-17). The connecting seat (1-18) is fixed to the top of the material lifting crossbeam (1-2), and the two ends of the pull rod crossbeam (1-14) are respectively fixed to the two ends of the pull rod shaft (1-5).

3. The multi-layer oven capable of increasing capacitor curing time according to claim 1, characterized in that, The feeding device (2) includes a set of feeding sliders (2-1) fixed on the box (5), feeding guide rails (2-2) slidably arranged on the feeding sliders (2-1), a push plate (2-4) connected to the feeding guide rails (2-2) through a guide rail connecting plate (2-3), and a feeding power element (2-5) arranged between the two feeding guide rails (2-2) for pushing the push plate (2-4) to move. A set of correction power elements (2-6) for correcting the material position is provided on the side of the push plate (2-4) facing the feeding power element (2-5). The movable end of the correction power element (2-6) can pass through the push plate (2-4) to contact the material.

4. The multi-layer oven capable of increasing capacitor curing time according to claim 1, characterized in that, The transport trolley (3) includes a trailer base plate (3-1), a transport power element (3-3) fixed to one end of the trailer base plate (3-1), a trailer plate (3-2) set on the upper surface of the trailer base plate (3-1), a transmission screw fixed on the lower surface of the trailer base plate (3-1), and a transmission slider (3-6) set on the screw (3-5) of the transmission screw and fixed to its nut (3-4). The transport power element (3-3) is connected to the screw (3-5) of the transmission screw. The transmission slider (3-6) is fixed to the trailer plate (3-2) through a sliding connecting block (3-7). The transmission screw is provided with a proximity switch (3-8) for detecting the position of the trailer plate (3-2).

5. The multi-layer oven capable of increasing capacitor curing time according to claim 1, characterized in that, The upper part of the box (5) has two rows of three-layer feeding channels. The lifting device (4) between the first layer feeding channel and the second layer feeding channel for transporting materials includes a first lifting fixing plate (4-1) fixed to the bottom of the limiting fixing plate (6-1) of the carrier limiting device (6), a first fixing slider (4-2) fixed on the first lifting fixing plate (4-1), a first sliding guide rail (4-3) that passes vertically through the first lifting fixing plate (4-1) and is slidably connected to the first fixing slider (4-2), a second lifting power element (4-4) fixed on the first lifting fixing plate (4-1) and whose movable end is connected to the first sliding guide rail (4-3), and a rear support plate (4-5) fixed on the top of the movable end of the second lifting power element (4-4). Side baffles (4-6) are fixed on both sides of the first lifting fixing plate (4-1). A stop bolt (4-7) is also fixed on the first lifting fixing plate (4-1) to limit the height position of the rear support plate (4-5). The lifting device (4) used to transport materials between the second and third feeding channels includes two sets of lifting components. The two sets of lifting components have the same structure. Each set includes two second lifting fixed plates (5-1) and a second sliding guide rail (5-3) fixed on the boxes on both sides of the feeding channel, a third lifting power element (5-2) fixed on the second lifting fixed plate (5-1), and a lifting plate (5-4). A second fixed slider (5-5) is provided at each end of the lifting plate (5-4). The second fixed slider (5-5) is fixed to the movable end of the third lifting power element (5-2) and slidably connected to the second sliding guide rail (5-3). The lifting plates (5-4) of the two sets of lifting components are connected to the left and right rows of feeding channels respectively.

6. The multi-layer oven capable of increasing capacitor curing time according to claim 1, characterized in that, The blowing system (7) includes a hot air blower (7-1) and an air outlet pipe (7-2) fixed at the air outlet of the hot air blower (7-1). The air outlet pipe (7-2) is connected to the hot air circulation system (9). The air outlet of the air outlet pipe (7-2) is equipped with a fan blade air adjustment device for adjusting the air volume.

7. The multi-layer oven capable of increasing capacitor curing time according to claim 6, characterized in that, The hot air circulation system (9) includes a hot air pipe (9-1) and multiple hot air distribution pipes (9-3) connected in parallel to the hot air pipe (9-1) through a hot air pipe joint (9-2). Each layer of the feeding channel (11) has a hot air distribution pipe (9-3) on the outer side of the channel wall. The upper and lower parallel hot air distribution pipes (9-3) are connected through an air volume adjustment shaft (9-4). The air volume adjustment shaft (9-4) is provided with multiple damper plates (9-5). The damper plates (9-5) are used to adjust the air volume and air direction in the corresponding hot air distribution pipe (9-3) so that the temperature of each position in the corresponding feeding channel is equal. Each hot air pipe joint (9-2) is provided with a fan blade air adjustment device for adjusting the air volume in its hot air distribution pipe (9-3).

8. The multi-layer oven capable of increasing the curing time of capacitors according to claim 6 or 7, characterized in that, The fan blade air adjustment device includes a damper shaft (7-3) fixed inside the pipe, an adjusting fan blade (7-5) fixed on the damper shaft (7-3), and a damper adjustment knob (7-4) fixed outside the pipe. One end of the damper shaft (7-3) extends out of the pipe and is fixed to the damper adjustment knob (7-4).

9. A method of using a multi-layer drying oven as described in any one of claims 2, characterized in that, Specifically, the following steps are included: S1, place the material carrier at the inlet of the oven feeding channel, at which time the feeding baffle (1-11) of the material support device (1) is located on the feeding side of the material carrier; S2, other equipment on the production line pushes the material into the material carrier in an orderly manner. The material pushes the feed baffle (1-11) to move along the translation guide shaft (1-4). When the feed baffle (1-11) moves to the other side, the other equipment stops pushing the material, and the material support function is completed. At the same time, the material support lifting component drives the feed baffle (1-11) back to the initial position. S3, start the blowing system (7) and supply hot air to the multi-row, multi-layer feeding channels inside the oven through the hot air circulation system (9); S4, the pushing device (2) at the inlet of the first layer of the first row of feeding channels pushes the material carrier carrying the material into the channel. When the material carrier reaches the outlet of the channel, the carrier limiting device (6) at the outlet corrects the position of the material carrier. Then the lifting device (4) at that position transports the material carrier to the second layer of feeding channel above it. The pushing device (2) at the inlet of the second layer of feeding channel pushes the material carrier into the channel. This step is repeated. The material carrier dries and solidifies according to the S-shaped movement trajectory until the material carrier reaches the outlet of the uppermost layer of the first row of feeding channels. When the material carrier reaches the outlet of the uppermost feeding channel of the first row, the transport trolley (3) located at the outlet will move the material carrier horizontally to the feeding channel of the second row of the same layer. Repeat the above steps to make the material carrier dry and solidify according to the S-shaped movement trajectory until the material carrier reaches the outlet of the lowermost feeding channel of the second row. Repeat this process until the material carrier reaches the channel outlet of the oven feeding channel. At this point, the curing process of the material in the oven is completed.

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