A melamine covered copper tinned insulated arc resistance bridging strip production system and method

Abstract

This invention relates to the field of bridging strip production, and more particularly to a melamine-coated copper-tin-plated insulating arc-resistant bridging strip production system and method, comprising: a plating bath; an isolation mechanism disposed above the plating bath and isolating the plating bath from external oxygen; a pretreatment mechanism disposed inside the isolation mechanism and used for transferring the bridging strip and applying a flux; a plating mechanism disposed above the plating bath and used for tin plating the bridging strip, including a fixing component for fixing the bridging strip and a separation component disposed below the fixing component, wherein after the fixing component fixes the bridging strip, the separation component achieves tin plating on the surface of the metal terminals on the bridging strip; and a centrifugal mechanism disposed above the plating bath and used for centrifuging the bridging strip after it has been coated with tin, the centrifugal mechanism including a baffle component for blocking each terminal and a tin-retaining component disposed between the baffle component.

Description

Technical Field

[0001] This invention relates to the field of bridging strip production, and more particularly to a production system and method for melamine-coated copper-tin-plated insulating arc-resistant bridging strip. Background Technology

[0002] A bridge strip (or jumper bar) is a component used for electrical connections or mechanical fixation, commonly found in circuit boards, power distribution systems, or structural assemblies. In electronics, it typically refers to configurable conductive strips on circuit boards (such as jumper caps or shorting blocks) that adjust circuit function or signal paths by physically connecting different contacts. In power systems, it may be a metal strip used to connect multiple terminals in parallel. In mechanical applications, it may be a metal / plastic strip used for reinforcement or bridging structures to enhance stability or transfer loads. Its core function is to provide flexible and adjustable connection solutions, simplifying equipment configuration or assembly processes.

[0003] Tin plating on the bridging strips achieves surface oxidation prevention and improves conductivity.

[0004] However, in actual use, based on a type of bridging strip, the metal terminals are made of two overlapping metal sheets. During the tin plating process, quality problems often occur inside the metal sheets, affecting the performance of the bridging strip. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by setting up a pretreatment mechanism and a plating solution mechanism to coat the surface of the metal sheet with a flux. By opening the metal sheet, the plating solution can be fully adhered to the root of the metal sheet. In addition, a centrifugal mechanism is used to ensure uniform adhesion of the inner plating layer while reducing the loss of plating solution in the middle of the metal sheet. This solves the technical problem that voids easily appear in the middle of the metal sheet, affecting the quality of the plating layer.

[0006] To address the above technical issues, the following technical solution is adopted:

[0007] A production system for melamine-coated copper-tin-plated insulating arc-resistant bridging strips includes:

[0008] plating bath;

[0009] An isolation mechanism is provided above the plating bath and isolates the plating bath from external oxygen.

[0010] A pretreatment mechanism, which is located inside the isolation mechanism and is used to transfer the bridging strip and coat it with a flux;

[0011] The plating solution mechanism is located above the plating solution tank and is used to tin-plate the bridging strip. It includes a fixing component for fixing the bridging strip and a separating component located below the fixing component. After the fixing component fixes the bridging strip, the separating component realizes the tin-plating of the metal terminal surface on the bridging strip.

[0012] A centrifugal mechanism is provided on the plating bath and is used to centrifuge the bridging strips that have completed the adhesion of molten tin. The centrifugal mechanism includes a baffle assembly for blocking each terminal and a tin retention assembly disposed in the middle of the baffle assembly.

[0013] Preferably, the isolation mechanism includes an isolation layer disposed above the plating bath, a conveyor belt disposed outside the isolation layer, a wedge-shaped groove disposed on one side of the conveyor belt, an isolation cavity disposed above the conveyor belt and located within the isolation layer, and two sets of inlets and outlets disposed on the isolation cavity, with sealing doors slidably connected to the inlet and outlet sides.

[0014] Preferably, the pretreatment mechanism includes a moving component for moving the bridging strip and a pretreatment component disposed within the isolation layer. The moving component includes a slide rail, multiple sets of slide tables slidably connected within the slide rail, and a clamping part disposed at the lower part of the slide tables. The clamping part includes a gripper that is rotatably and vertically slidably connected to the slide table, a swing arm disposed on both sides of the gripper, and a vacuum suction cup disposed at the lower end of the swing arm.

[0015] Preferably, the pretreatment component includes a cleaning tank disposed within the isolation layer, a coating tank disposed behind the cleaning tank, two sets of cleaning brushes disposed within the cleaning tank, multiple sets of fan blades disposed at the bottom of the coating tank, and nozzles disposed between each fan blade and spraying upwards.

[0016] Preferably, the separation component includes a scraping element for scraping off oxides and a separation element for separating tin liquid, both disposed above the plating bath. The scraping element includes a scraper that is disposed on the surface of the plating bath and slides horizontally, and a collection basket disposed on one side of the scraper.

[0017] Preferably, the separating component includes an isolation basket disposed above the scraper and sliding vertically on the side wall of the isolation layer, a liquid storage tank disposed at the bottom of the isolation basket, and a leakage plate hinged to the bottom of the liquid storage tank.

[0018] Preferably, the fixing component includes a fixing frame that is vertically slidably connected to the side wall of the isolation layer, fixing clips disposed on both sides of the fixing frame, and a card that is rotatably connected to the fixing frame.

[0019] Preferably, the partition assembly includes a filter basket disposed on the other side of the isolation basket and vertically slidably connected to the side wall of the isolation layer, a connecting ring rotatably connected inside the filter basket, a contact block horizontally sliding on the connecting ring, and multiple sets of baffles disposed in the middle of the connecting ring.

[0020] Preferably, the tin-retaining component is disposed in the middle of each baffle, including jet columns located on both sides of the metal terminal, multiple sets of jet heads arranged vertically on the jet columns, a movable column disposed on the outside of each terminal with the center line of the connecting ring, and multiple sets of jet heads arranged vertically on the movable column.

[0021] As a further preferred embodiment, the method for producing a melamine copper-clad tin-plated insulating arc-resistant bridging strip, applied to the aforementioned melamine copper-clad tin-plated insulating arc-resistant bridging strip production system, includes the following steps:

[0022] Step 1: Isolation Step. The bridging strip is conveyed into the device via a conveyor belt. The lower opening of the isolation chamber is opened, the gripper clamps the bridging strip and enters the isolation chamber. The opening of the isolation chamber is closed, and a vacuum is drawn. Then the opening of the side wall of the isolation chamber is opened, and the bridging strip is moved into the isolation layer for processing.

[0023] Step 2, Coating Step: The sliding table moves the bridging strip into the cleaning tank, and the vacuum suction cup on the swing arm cleans the inside and outside of the metal sheet. Then, a flux is applied to the surface of the metal sheet in the coating tank.

[0024] Step 3, plating step: The slide moves the bridging strip above the plating bath. At this time, the scraper moves and scrapes the tin oxide below the isolation basket into the collection basket. Then the isolation basket moves down, allowing the tin liquid to enter the isolation basket and fill the storage tank at the same time. Simultaneously, the gripper clamps the bridging strip and moves it down, so that the card is inserted between the two metal pieces, thus creating a gap between the metal pieces. The bridging strip moves down with the fixing frame to plate the metal pieces of the bridging strip. After the tin liquid is attached, the card rotates and detaches from the metal pieces, completing the tin liquid attachment.

[0025] Step four, centrifugal process: move the bridging strip to the connecting ring so that the terminal is in the middle of each baffle. The clamping part drives the connecting ring to rotate together. At the same time, the jet column and the moving column spray air towards the metal terminal, thus achieving uniform forming of the coating through centrifugal assistance.

[0026] The beneficial effects of this invention are:

[0027] (1) In this invention, by setting up a plating solution mechanism, the metal sheet is separated to both sides during plating, so that the plating solution can fully adhere to the surface of the metal sheet. At the same time, in view of the situation that the molten tin is difficult to enter at the root of the metal sheet, the vibration of the metal sheet is used to make the molten tin enter the root of the metal sheet by squeezing force, reducing the occurrence of voids. Furthermore, by setting up a liquid storage tank, the metal terminals of the bridging strip can be fully adhered, preventing the situation of insufficient adhesion.

[0028] (2) In this invention, by setting up an isolation mechanism and a plating solution mechanism, on the one hand, the entry of oxygen into the isolation layer is reduced, thereby avoiding the oxidation of the tin liquid and the appearance of a large number of oxides. On the other hand, by scraping and separating the oxides on the surface of the tin plating solution, the oxides are prevented from adhering to the surface of the metal terminal during the plating process. Through these two steps, the influence of oxides on the plating layer is reduced, the plating quality is improved, and heat loss is reduced, thus reducing energy consumption.

[0029] (3) In this invention, the pretreatment mechanism uses a slide to complete the circulation of the bridging strip in the device, and performs surface treatment, plating and centrifugal process. By pre-treating the bridging strip, the surface cleanliness of the bridging strip is improved on the one hand, and the flux is applied to the surface of the bridging strip in advance to wet the metal sheet, thereby improving the efficiency of molten tin adhesion and enabling the molten tin to adhere to the surface of the bridging strip more quickly, especially at the root of the bridging strip.

[0030] In summary, this equipment has the advantages of high production efficiency, stable coating quality, and low energy consumption, and is especially suitable for the field of bridging strip production technology. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of 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.

[0032] Figure 1 This is a schematic diagram of a production system for melamine-coated copper-tin-plated insulating arc-resistant bridging strips.

[0033] Figure 2 This is a schematic diagram of the internal structure of a melamine copper-plated tin-insulated arc-resistant bridging strip production system.

[0034] Figure 3 This is a schematic diagram of the relevant structure of the isolation layer.

[0035] Figure 4 This is a structural diagram of the moving component.

[0036] Figure 5 This is a schematic diagram of the relevant structure of the isolation cavity.

[0037] Figure 6 This is a schematic diagram of the relevant structure of the cleaning tank.

[0038] Figure 7 This is a schematic diagram of the plating solution mechanism.

[0039] Figure 8 This is a schematic diagram showing the positional relationship of the plating solution mechanism.

[0040] Figure 9 This is a schematic diagram of the centrifuge mechanism.

[0041] Figure 10 This is a schematic diagram of the working state of the plating solution mechanism.

[0042] Figure 11 A schematic diagram of the production process of a melamine copper-plated tin-insulated arc-resistant bridging strip for housing components. Detailed Implementation

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0044] Example 1

[0045] like Figure 1 , Figure 2 , Figure 3 As shown, a melamine-coated copper-tin-plated insulating arc-resistant bridging strip production system includes:

[0046] plating bath 0;

[0047] Isolation mechanism 1, which is disposed above plating bath 0 and isolates plating bath 0 from external oxygen;

[0048] Pretreatment unit 2, which is located inside isolation unit 1 and is used to transfer bridging strips and coat them with flux;

[0049] The plating solution mechanism 3 is located above the plating solution tank 0 and is used to tin-plate the bridging strip. It includes a fixing component 31 for fixing the bridging strip and a separating component 32 located below the fixing component 31. After the fixing component 31 fixes the bridging strip, the separating component 32 is used to tin-plate the surface of the metal terminals on the bridging strip.

[0050] Centrifugal mechanism 4 is disposed on plating bath 0 and is used to centrifuge the bridging strip that has completed the adhesion of molten tin. Centrifugal mechanism 4 includes a partition assembly 41 for blocking each terminal and a tin retention assembly 42 disposed in the middle of the partition assembly 41.

[0051] In this embodiment, tin plating of the metal terminals on the bridging strip is achieved by setting an isolation mechanism 1, a plating solution mechanism 3, and a centrifugal mechanism 4. For the bridging strip, there is a type of bridging strip in which each metal terminal is formed by two sets of metal sheets stacked together to form a complete metal terminal. The exposed parts of the metal terminals on both sides of the bridging strip are relatively small, while the exposed parts of the metal terminals in the middle position are relatively large. Therefore, for the surface tin plating of this type of bridging strip, it is necessary to ensure that the tin liquid can fully fill the middle position of the two metal sheets.

[0052] In detail, the isolation mechanism 1 is set up to isolate the structure of the plating layer from the external environment, so as to prevent air flow between the inside and outside of the device, which would cause a large amount of oxidation of the tin liquid in the plating bath 0 and affect the plating layer. Then, the surface of the metal strip of the bridging strip is cleaned and coated with flux. Then, the tin liquid is attached by the plating mechanism 3. By centrifugation, the tin liquid is evenly attached while ensuring that the tin liquid in the middle of the metal sheet is not thrown out in large quantities or onto the outer metal terminals.

[0053] It should be noted that the molten tin inside the device is always kept at a high temperature and is prone to react with oxygen, resulting in the formation of oxides. These oxides tend to adhere to the surface of the metal terminals during the plating process, affecting the formation of the plating layer. Therefore, it is necessary to reduce the contact between the plating solution and oxygen to reduce the generation of oxides.

[0054] Furthermore, such as Figure 3 As shown, the isolation mechanism 1 includes an isolation layer 11 disposed above the plating bath 0, a conveyor belt 12 disposed outside the isolation layer 11, a wedge-shaped groove 13 disposed on one side of the conveyor belt 12, an isolation cavity 14 disposed above the conveyor belt 12 and located inside the isolation layer 11, and two sets of inlets 141 and outlets 142 disposed on the isolation cavity 14, with sealing doors 15 slidably connected to one side of each inlet 141 and outlet 142.

[0055] In this embodiment, by setting an isolation chamber 14 and providing two sets of inlets 141 and outlets 142 on the isolation chamber 14, which are respectively used to move the bridging strip into the device and out of the device, the isolation chamber 14 is used to separate the external environment from the isolation layer 11, thereby reducing the inflow of oxygen.

[0056] In detail, the bridging strip is placed on the conveyor belt 12 and fed into the device. The bridging strip falls into the wedge groove 13, placing it in a vertical position for easy clamping. Then, when the bridging strip is clamped by the moving component 21, the inlet 141 located at the lower part of the isolation chamber 14 opens, clamping the bridging strip into the isolation chamber 14, and then closes. At this time, the isolation chamber 14 is evacuated and filled with inert gas to replace the oxygen. Then, the outlet 142 opens, sending the bridging strip into the isolation layer 11. The same process is used when sending the bridging strip out of the device, using a one-sided opening and one-sided closing method to complete the oxygen isolation.

[0057] It should be noted that the entry and exit of the bridging strips are carried out simultaneously. That is, when one bridging strip enters the isolation chamber 14, another bridging strip is simultaneously exited from the isolation chamber 14, so that the inlet 141 and outlet 142 of the two sets of inlets 141 and outlets 142 open at the same time, thereby reducing the number of times air is drawn.

[0058] It is worth mentioning that by setting up the isolation chamber 14 and evacuating the isolation chamber 14, the possibility of oxygen entering the isolation layer 11 can be greatly reduced, thereby reducing the contact between oxygen and molten tin, avoiding the formation of a large amount of oxides in the molten tin that would affect the plating layer. At the same time, this method can also greatly reduce the heat loss of the device, especially the plating bath, thereby reducing the energy consumption of the device.

[0059] Furthermore, such as Figure 4 , Figure 5 As shown, the pretreatment mechanism 2 includes a moving component 21 for moving the bridging strip and a pretreatment component 22 disposed in the isolation layer 11. The moving component 21 includes a slide 211, multiple sets of slides 212 slidably connected in the slide 211, and a clamping part 213 disposed at the lower part of the slides 212. The clamping part 213 includes a gripper 214 rotatably and vertically slidably connected to the slides 212, a swing arm 215 disposed on both sides of the gripper 214, and a vacuum suction cup 216 disposed at the lower end of the swing arm 215.

[0060] In this embodiment, the bridging strip is clamped and moved by the moving component 21, and the stacked metal sheets can be separated by the vacuum suction cup 216 provided thereon, so that the inner side of the metal edge can be processed.

[0061] In detail, the slide 211 is a complete square track. By setting cylinders at the four corners of the track, the slide table 212 on the slide 211 is pushed to move sequentially, thereby realizing the cyclic movement of the bridging strip. The clamping device and the delivery device are as follows: the gripper 214 of the clamping part 213 clamps the plastic part on the upper part of the bridging strip, and the swing arms 215 on both sides rotate to make the suction cup contact the surface of the metal sheet, so that the swing of the swing arms 215 makes the metal sheet separate to both sides.

[0062] It should be noted that the vacuum suction cup 216 separates the metal sheets by drawing a vacuum. Therefore, after the isolation chamber 14 is evacuated, it is necessary to refill it with inert gas to balance the pressure; otherwise, the vacuum suction cup 216 will not be able to adsorb.

[0063] It is worth mentioning that the swing arm 215 is controlled by a motor to rotate. At the same time, the swing should not be too large when opening the metal plate to prevent the metal plate from deforming due to excessive swing, so that the two metal plates cannot be stacked together.

[0064] Furthermore, such as Figure 6 As shown, the pretreatment component 22 includes a cleaning tank 221 disposed in the isolation layer 11, a coating tank 222 disposed behind the cleaning tank 221, two sets of cleaning brushes 223 disposed in the cleaning tank 221, multiple sets of fan blades 224 disposed at the bottom of the coating tank 222, and nozzles 225 disposed in the middle of each fan blade 224 and spraying upward.

[0065] In this embodiment, by setting up a cleaning tank 221 and a coating tank 222, the inner and outer sides of the metal sheet are cleaned respectively, and a flux is coated on the surface of the metal sheet, so that the subsequent coating will have a better effect.

[0066] In detail, the cleaning tank 221 is equipped with two sets of cleaning brushes 223, one set for cleaning the outside of the metal sheet and the other set for cleaning the inside of the metal sheet. When cleaning the inside of the metal sheet, the metal sheet is pulled apart by a suction cup and then enters the coating tank 222 after cleaning. The surface is wetted with flux, and the flux is made to flow by the fan blades 224. At the same time, the flux is sprayed upward by the nozzle 225, so that the flux can flow into the middle of the metal sheet.

[0067] It should be noted that although the suction cup can pull the metal sheet apart, the closer to the root of the terminal, the tighter the connection of the metal sheet becomes, and the less likely the plating solution is to enter the interior for plating. Therefore, by using the coating pool 222, the inner and outer surfaces of the metal sheet are wetted with flux, so that the flux can penetrate into the middle of the metal sheet as much as possible, thereby assisting the subsequent adhesion of the tin liquid.

[0068] Furthermore, such as Figure 7 , Figure 8 , Figure 10 As shown, the separation component 32 includes a scraping component 321 for scraping off oxides and a separation component 322 for separating tin liquid, which are disposed above the plating bath 0. The scraping component 321 includes a scraper 323 disposed on the surface of the plating bath 0 and sliding horizontally, and a collection basket 324 disposed on one side of the scraper 323.

[0069] The separator 322 includes an isolation basket 325 disposed above the scraper 323 and sliding vertically on the side wall of the isolation layer 11, a liquid storage tank 326 disposed at the bottom of the isolation basket, and a drain plate 327 hinged to the bottom of the liquid storage tank 326.

[0070] The fixing component 31 includes a fixing frame 311 that is vertically slidably connected to the side wall of the isolation layer 11, fixing clips 312 disposed on both sides of the fixing frame 311, and a card 313 that is rotatably connected to the fixing frame 311.

[0071] In this embodiment, the oxides on the surface of the plastic sheet are separated again by the separation component 32 to prevent the oxides from adhering to the surface of the metal sheet, while the molten tin is attached to the surface of the metal sheet.

[0072] In detail, the bridging strip moves above the isolation basket 325 and then moves down. At this time, the metal sheet is in the open state, allowing the card 313 to engage in the middle of the metal sheet. The card 313 separates the metal sheet, allowing the molten solder to enter the middle of the metal sheet. Then, the scraper 323 moves along the surface of the plating solution below the isolation basket 325, scraping the surface oxides into the collection basket 324. Then, the isolation basket 325 moves down first, allowing the molten solder to enter the isolation basket 325 and the storage tank 326, filling... After the liquid storage tank 326 is full, the isolation basket 325 rises a certain distance so that the distance between the liquid level of the isolation basket 325 and the liquid storage tank 326 is the distance between the middle and the two sides of the exposed metal terminal of the bridging strip. The bridging strip moves down and immerses the metal strip into the molten solder. As the bridging strip descends, the card 313 rotates and detaches from the middle of the metal sheet, so that the metal strip is completely immersed in the molten solder, completing the adhesion of the molten solder. Then the isolation basket 325 rises back to its original position, and the drain plate 327 opens to allow the molten solder in the liquid storage tank 326 to flow out.

[0073] It should be noted that the card 313 increases the gap between the two metal sheets, making it easier for molten solder to flow into the metal sheets. Regarding the adhesion at the base of the metal sheets, since a flux has already been applied to the surface of the metal strip, when the card 313 is removed from the metal sheets, the metal sheets will instantly return to their original positions. The molten solder in the middle of the metal sheets will be squeezed by the metal sheets and pop out. Some of the molten solder will be squeezed upwards and, together with the originally applied flux, will adhere to the middle gap at the base of the metal sheets, thus preventing voids in the plating.

[0074] It is worth mentioning that even though oxygen is isolated through the isolation chamber 14, some oxygen will inevitably enter the isolation layer 11 after long-term use, resulting in the formation of oxides on the surface of the plating solution. At this time, the oxides on the surface are scraped into the collection tank by the scraper 323. Then the isolation basket 325 descends and further filters the tin solution to prevent oxides from remaining in the tin solution flowing into the isolation basket 325. Through two filtrations, oxides are prevented from interfering with the formation of the plating layer.

[0075] Both the isolation basket 325 and the collection basket 324 have a filter structure at the bottom.

[0076] Furthermore, such as Figure 9 As shown, the partition assembly 41 includes a filter basket 411 disposed on the other side of the isolation basket 325 and vertically slidably connected to the side wall of the isolation layer 11, a connecting ring 412 rotatably connected inside the filter basket, a contact block 413 horizontally sliding on the connecting ring 412, and multiple sets of baffles 414 disposed in the middle of the connecting ring 412.

[0077] The tin-retaining assembly 42 is disposed in the middle of each baffle 414, including jet columns 421 located on both sides of the metal terminal, multiple sets of jet heads arranged vertically on the jet columns 421, and movable columns 422 disposed on the outer side of each terminal with the center line of the connecting ring 412, and multiple sets of jet heads arranged vertically on the movable columns 422.

[0078] In this embodiment, by setting baffle 414, spray column and moving column 422, and in conjunction with centrifugation, the molten solder adheres more evenly, while avoiding the molten solder in the middle of the metal sheet being thrown out during centrifugation, or the excess molten solder being thrown onto the outer metal terminals.

[0079] In detail, the bridging strip moves above the connecting ring 412 and then moves down, so that the metal terminal moves to the middle of each baffle 414. At the same time, the contact block 413 clamps the clamping part 213, so that the connecting ring 412 rotates with the clamping part 213, and the bridging strip is centrifuged. During centrifugation, the jet column 421 and the moving column 422 simultaneously jet gas onto the metal terminal.

[0080] It should be noted that the rotation center during centrifugation is located at the center of the bridging strip. When centrifugation begins, the excess molten solder in the middle will be thrown outward. At this time, by setting an inclined baffle 414, the molten solder thrown out is prevented from falling onto the external metal terminals and affecting the plating formation.

[0081] It is worth mentioning that by setting up the jet column 421 and the moving column 422, the jet column 421 is located on both sides of the metal sheet. The jet can use airflow to make the two metal sheets fit together more closely, preventing large gaps that could cause the molten solder to be brushed out. At the same time, the airflow can also accelerate the solidification of the molten solder on the surface. The moving column 422 is located on the outside of the metal sheet, and the jet head on the moving column 422 is aimed at the gaps in the metal sheet. By blowing air into these gaps, it can further reduce the possibility of a large amount of molten lead being splashed out.

[0082] The molten lead that is thrown out falls into the filter box. During centrifugation, the volume of the molten lead is small and may oxidize rapidly. Therefore, filter basket 411 is set up to collect the oxides in the filter box and prevent them from being lost.

[0083] An opening can be provided above the filter basket 411 and the collection basket 324 in the isolation layer 11, which can be opened to clean the filter basket 411 and the collection basket 324.

[0084] Example 2

[0085] like Figure 11 As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows:

[0086] Furthermore, such as Figure 6 As shown, the method for producing a melamine copper-clad tin-plated insulating arc-resistant bridging strip, applied to the aforementioned melamine copper-clad tin-plated insulating arc-resistant bridging strip production system, includes the following steps:

[0087] Step 1, Isolation Step: The bridging strip is conveyed into the device via conveyor belt 12. The lower opening of the isolation chamber 14 is opened, the gripper 214 clamps the bridging strip and enters the isolation chamber 14. The opening of the isolation chamber 14 is closed, and a vacuum is drawn. Then the side wall opening of the isolation chamber 14 is opened, and the bridging strip is moved into the isolation layer 11 for processing.

[0088] Step 2, Coating Step: The slide table 212 moves to move the bridging strip into the cleaning tank 221, and the vacuum suction cup 216 on the swing arm 215 cleans the inside and outside of the metal sheet, and the flux is coated on the surface of the metal sheet in the coating tank 222.

[0089] Step 3, plating step: The slide table 212 moves the bridging strip above the plating bath 0. At this time, the scraper 323 moves to scrape the tin oxide below the isolation basket 325 into the collection basket 324. Then the isolation basket 325 moves down, allowing the tin liquid to enter the isolation basket 325 and fill the storage tank 326. At the same time, the gripper 214 clamps the bridging strip and moves down, so that the card 313 is inserted between the two metal pieces, thus creating a gap between the metal pieces. The bridging strip moves down with the fixing frame 311 to plate the metal pieces of the bridging strip. After the tin liquid is attached, the card 313 rotates and detaches from the metal pieces, completing the attachment of the tin liquid.

[0090] Step four, centrifugal process: move the bridging strip to the connecting ring 412 so that the terminal is in the middle of each baffle 414. The clamping part drives the connecting ring 412 to rotate together. At the same time, the jet column 421 and the moving column 422 spray air towards the metal terminal, thus achieving uniform formation of the coating through centrifugal assistance.

[0091] In the description of this invention, it should be understood that the terms "front and back", "left and 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 component 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 the invention.

[0092] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0093] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A production system for melamine-coated copper-tin-plated insulating arc-resistant bridging strips, characterized in that, include: An isolation mechanism (1) is provided above the plating bath (0) and isolates the plating bath (0) from external oxygen. A pretreatment mechanism (2) is located inside the isolation mechanism (1) and is used to transfer the bridging strip and coat it with a flux. The plating mechanism (3) is set above the plating pool (0) and is used to tin-plat the bridging strip. It includes a fixing component (31) for fixing the bridging strip and a separating component (32) set below the fixing component (31). After the fixing component (31) fixes the bridging strip, the separating component (32) is used to tin-plat the surface of the metal terminals on the bridging strip. Centrifugal mechanism (4), which is disposed on plating bath (0) and used to centrifuge the bridging strip that has completed the adhesion of tin liquid, includes a baffle assembly (41) for blocking each terminal and a tin retention assembly (42) disposed in the middle of the baffle assembly (41). The separation component (32) includes a scraper (321) for scraping off oxides and a separator (322) for separating tin liquid, which are disposed above the plating bath (0). The scraper (321) includes a scraper (323) disposed on the surface of the plating bath (0) and sliding horizontally, and a collection basket (324) disposed on one side of the scraper (323). The separating component (322) includes an isolation basket (325) disposed above the scraper (323) and vertically sliding on the side wall of the isolation layer (11), a liquid storage tank (326) disposed at the bottom of the isolation basket, and a drain plate (327) hinged to the bottom of the liquid storage tank (326). The fixing component (31) includes a fixing frame (311) that is vertically slidably connected to the side wall of the isolation layer (11), fixing clips (312) on both sides of the fixing frame (311), and a card (313) that is rotatably connected to the fixing frame (311).

2. The melamine-coated copper-tin-plated insulating arc-resistant bridging strip production system according to claim 1, characterized in that, The isolation mechanism (1) includes an isolation layer (11) disposed above the plating bath (0), a conveyor belt (12) disposed outside the isolation layer (11), a wedge groove (13) disposed on one side of the conveyor belt (12), an isolation cavity (14) disposed above the conveyor belt (12) and located inside the isolation layer (11), and two sets of inlets (141) and outlets (142) disposed on the isolation cavity (14), and a sealing door (15) slidably connected on one side of the inlets (141) and outlets (142).

3. The melamine-coated copper-tin-plated insulating arc-resistant bridging strip production system according to claim 2, characterized in that, The pretreatment mechanism (2) includes a moving component (21) for moving the bridging strip and a pretreatment component (22) disposed in the isolation layer (11). The moving component (21) includes a slide (211), multiple slides (212) slidably connected in the slide (211), and a clamping part (213) disposed at the lower part of the slide (212). The clamping part (213) includes a gripper (214) rotatably and vertically slidably connected to the slide (212), a swing arm (215) disposed on both sides of the gripper (214), and a vacuum suction cup (216) disposed at the lower end of the swing arm (215).

4. The melamine-coated copper-tin-plated insulating arc-resistant bridging strip production system according to claim 3, characterized in that, The pretreatment component (22) includes a cleaning tank (221) disposed in the isolation layer (11), a coating tank (222) disposed behind the cleaning tank (221), two sets of cleaning brushes (223) disposed in the cleaning tank (221), multiple sets of fan blades (224) disposed at the bottom of the coating tank (222), and nozzles (225) disposed in the middle of each fan blade (224) and spraying upward.

5. The melamine-coated copper-tin-plated insulating arc-resistant bridging strip production system according to claim 4, characterized in that, The partition assembly (41) includes a filter basket (411) disposed on the other side of the isolation basket (325) and vertically slidably connected to the side wall of the isolation layer (11), a connecting ring (412) rotatably connected inside the filter basket, a contact block (413) horizontally sliding on the connecting ring (412), and multiple sets of baffles (414) disposed in the middle of the connecting ring (412).

6. The melamine-coated copper-tin-plated insulating arc-resistant bridging strip production system according to claim 5, characterized in that, The tin-retaining component (42) is disposed in the middle of each baffle (414), including jet columns (421) located on both sides of the metal terminal, multiple sets of jet heads arranged vertically on the jet columns (421), and movable columns (422) disposed on the outside of each terminal with the center line of the connecting ring (412), and multiple sets of jet heads arranged vertically on the movable columns (422).

7. A method for producing a melamine copper-plated tin-insulated arc-resistant bridging strip, applied to the melamine copper-plated tin-insulated arc-resistant bridging strip production system described in claim 6, characterized in that, Includes the following steps: Step 1, Isolation Step: The bridging strip is transported into the device via conveyor belt (12). The lower opening of the isolation chamber (14) is opened, the gripper (214) clamps the bridging strip and enters the isolation chamber (14). The opening of the isolation chamber (14) is closed, and a vacuum is drawn. Then the opening of the side wall of the isolation chamber (14) is opened, and the bridging strip is moved into the isolation layer (11) for processing. Step 2, Coating Step: The slide table (212) moves to move the bridging strip into the cleaning tank (221), and the vacuum suction cup (216) on the swing arm (215) is used to clean the inside and outside of the metal sheet, and the flux is coated on the surface of the metal sheet in the coating tank (222). Step 3, plating step: The slide table (212) moves the bridging strip above the plating bath (0). At this time, the scraper (323) moves and scrapes the tin oxide below the isolation basket (325) into the collection basket (324). Then the isolation basket (325) moves down, so that the tin liquid enters the isolation basket (325) and fills the storage tank (326). At the same time, the gripper (214) clamps the bridging strip and moves down, so that the card (313) is inserted into the middle of the two metal sheets, so that a gap appears in the middle of the metal sheets. The bridging strip moves down with the fixing frame (311) to plate the metal sheets of the bridging strip. After the tin liquid is attached, the card (313) rotates and detaches from the metal sheets, completing the attachment of the tin liquid. Step four, centrifugal step, move the bridging strip to the connecting ring (412) so that the terminal is in the middle of each baffle (414). The clamping part drives the connecting ring (412) to rotate together. At the same time, the jet column (421) and the moving column (422) spray airflow toward the metal terminal, and the centrifugal assisted coating is uniformly formed.

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