A new preheating guide device

Abstract

The utility model relates to metal preheating zone positioning device field discloses a novel preheating guiding device, including preheating seat, the upper end of preheating seat is clamped and is provided with locating copper block, be provided with dismantling and replacement subassembly between preheating seat and locating copper block, the upper end of locating copper block is provided with a plurality of connecting slots, a plurality of connecting slots all are fixedly connected with ceramic bearing in the inside, a plurality of ceramic bearings all are fixedly sleeved with locating axle stem in, dismantling and replacement subassembly includes two first connecting plates and two second connecting plates, two first connecting plates all are fixedly connected with locating copper block, two second connecting plates all are fixedly connected with preheating seat, the lower end of two first connecting plates all is fixedly connected with the connecting plug piece. In the utility model, the temperature difference problem of traditional device is eliminated completely, and the metal strip surface and passivation layer are effectively protected, metal chip generation is reduced, and locating copper block can be replaced quickly through dismantling and replacement subassembly, and different specifications metal strip material are adapted.

Description

Technical Field

[0001] This utility model relates to the field of metal preheating zone positioning devices, and in particular to a novel preheating guide device. Background Technology

[0002] During the process of applying tab adhesive to the metal strip, the metal strip needs to be preheated. The surface of the preheated metal strip needs to reach a certain temperature. At this time, the adhesive is applied under the positioning action of the guide plate. The surface temperature of the metal strip needs to reach about 120°C when applying the adhesive. If the temperature is too low, the tab adhesive cannot be adhered to the surface of the metal strip, which may cause the single-sided adhesive tab to flow out, resulting in cell leakage.

[0003] Currently, the preheating and guiding devices used in the industry mainly consist of two parts: a preheating section and a guiding section, which are connected together by nuts. The heat of the guiding section is transferred from the preheating section through heat conduction, so its temperature is lower than that of the preheating section. Furthermore, the guiding section uses a guide plate for positioning. When the metal strip passes through the guide groove, it not only scrapes against the groove wall, but the bottom of the guide groove may also scratch the surface of the metal strip, damaging its passivation layer. The resulting metal shavings and the damaged passivation layer affect the safety performance of the electrode tabs, potentially causing leakage from the battery cell and leading to a safety accident. In other words, current preheating devices suffer from a large temperature difference (above 50°C) and damage to the surface and sides of the metal strip, thus affecting the safety performance of the electrode tabs.

[0004] Therefore, those skilled in the art have provided a novel preheating guide device to solve the problems mentioned in the background art. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies and provide a novel preheating guide device. By designing the metal strip to pass directly over the preheating base and positioning copper block, the temperature difference problem of traditional devices is completely eliminated. Four ceramic bearings are used for positioning, which avoids hard friction between the metal strip and the device during rotation, effectively protecting the surface and passivation layer of the metal strip, reducing metal shavings, and ensuring the safety performance of the tabs. At the same time, the positioning copper block can be quickly replaced by disassembling the components to adapt to different specifications of metal strips, combining the multiple advantages of efficient temperature control, metal protection, and flexible adaptation.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A novel preheating guide device includes a preheating base, a positioning copper block is engaged at the upper end of the preheating base, a replacement assembly is provided between the preheating base and the positioning copper block, and multiple connecting grooves are opened at the upper end of the positioning copper block. Ceramic bearings are fixedly connected inside the multiple connecting grooves, and positioning shafts are fixedly sleeved inside the multiple ceramic bearings.

[0008] The replacement assembly includes two first connecting plates and two second connecting plates. Both first connecting plates are fixedly connected to positioning copper blocks, and both second connecting plates are fixedly connected to preheating bases. A connecting plug is fixedly connected to the lower end of each of the two first connecting plates, and a connecting slot is opened at the upper end of each of the two second connecting plates. A reset groove is opened at the front and rear of one side of the inner wall of each of the two connecting slots. A movable rod is movably arranged inside each of the multiple reset grooves. A locking block is fixedly connected to one end of each of the multiple movable rods near the corresponding connecting plug. A locking groove is opened at the front and rear of one side of each of the two connecting plugs, and a reset spring is movably sleeved on the outer wall of each of the multiple movable rods.

[0009] With the above technical solution, and by incorporating a replacement component, when it is necessary to guide metal strips of different specifications, pulling the pull plate will disengage the locking block from the locking groove, allowing for quick removal of the positioning copper block. During installation, the corresponding positioning copper block is inserted into the preheating seat, and the return spring will cause the locking block to pop out and engage with the locking groove to complete the fixation. This facilitates the replacement of positioning copper blocks equipped with positioning shafts of appropriate spacing, making it more suitable for various working needs.

[0010] Furthermore, a heating rod is fixedly installed at the upper end of the preheating base, and an installation groove is opened at the lower end of the preheating base. Multiple temperature sensors, controllers, and power regulators are fixedly installed on the inner wall of the upper end of the installation groove. The temperature sensors, controllers, power regulators, and heating rods are all electrically connected.

[0011] The above technical solution involves heating the positioning copper block by activating a heating rod, and simultaneously monitoring the heating temperature of the positioning copper block using a temperature sensor. The heating intensity of the heating rod is then controlled and adjusted by a controller and power regulator to stabilize the temperature within the required process range.

[0012] Furthermore, one end of each of the two movable rods located on the same side passes through the corresponding second connecting plate and is fixedly connected to a pull plate, and the upper and lower ends of the two pull plates are provided with pull grooves;

[0013] The above technical solution, with its pull plate and pull groove, allows operators to easily control the movement of the locking block by pulling the pull plate.

[0014] Furthermore, the heating rod and the positioning copper block are in contact, and the detection end of the temperature sensor is in contact with the positioning copper block;

[0015] The above technical solution allows for effective heating of the positioning copper block by setting the heating rod and the positioning copper block into contact and then activating the heating rod. By directly contacting the temperature sensor detection end with the positioning copper block, the surface temperature change of the positioning copper block can be captured in real time.

[0016] Furthermore, both of the connecting blocks are engaged in the corresponding connecting slots, and the multiple locking blocks are engaged in the corresponding locking grooves.

[0017] By using the above technical solution, the positioning copper block can be fixed by engaging the connecting plug in the corresponding connecting slot and engaging the locking block in the corresponding locking groove.

[0018] Furthermore, both ends of the plurality of reset springs are fixedly connected to the inner wall of the opposite side of the corresponding locking block and reset groove;

[0019] By using the above technical solution, the locking block can be automatically ejected by effectively restricting the return spring.

[0020] Furthermore, a metal strip is provided at the upper end of the positioning copper block, and the metal strip is movably disposed between the corresponding multiple positioning shafts;

[0021] With the above technical solution, when a single metal strip is fed, it is positioned by four corresponding ceramic bearings to prevent the strip from deviating from the center. At the same time, when the side of the moving metal strip comes into contact with the ceramic bearing, the ceramic bearing rotates, avoiding hard friction between the metal strip and the guide device, thereby avoiding scratches or the generation of metal debris.

[0022] This utility model has the following beneficial effects:

[0023] 1. The present invention proposes a novel preheating guide device, which is equipped with a replaceable component. When it is necessary to guide metal strips of different specifications, the pull plate is pulled to disengage the locking block from the locking groove, and the positioning copper block can be quickly removed. During installation, the corresponding positioning copper block is inserted into the preheating seat, and the return spring causes the locking block to pop out and engage with the locking groove to complete the fixation. This facilitates the replacement of positioning copper blocks with positioning shafts of appropriate spacing and can be better adapted to various working needs.

[0024] 2. The present invention proposes a novel preheating guide device in which the metal strip passes directly through the preheating base and is preheated directly by the positioning copper block of the guide part. Compared with the traditional preheating guide device that transfers heat through heat conduction, resulting in a large temperature difference between the front and back, this device does not have a temperature difference and can keep the surface temperature of the metal strip stable at the process requirements, avoiding problems such as the tab adhesive not being able to adhere and the cell leakage caused by the temperature being too low.

[0025] 3. The present invention proposes a novel preheating guide device, which uses four ceramic bearings to position a single metal strip. When the side of the metal strip contacts the ceramic bearing, the ceramic bearing rotates, avoiding hard friction between the metal strip and the guide device, effectively preventing scratches on the surface and side of the metal strip, protecting the passivation layer on the surface of the metal strip, reducing the particulate metal shavings generated by scratches, ensuring the safety performance of the electrode tab, and reducing the risk of cell leakage and safety accidents. Attached Figure Description

[0026] Figure 1 This is an isometric schematic diagram of a novel preheating guide device proposed in this utility model;

[0027] Figure 2 This is a front sectional view of a novel preheating guide device proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0029] Figure 4 This is a top view schematic diagram of a novel preheating guide device proposed in this utility model;

[0030] Figure 5 This is a side view schematic diagram of a novel preheating guide device proposed in this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Preheating base; 2. Positioning copper block; 3. Replacement component; 4. Connecting groove; 5. Ceramic bearing; 6. Positioning shaft; 7. First connecting plate; 8. Second connecting plate; 9. Connecting insert; 10. Connecting slot; 11. Reset groove; 12. Movable rod; 13. Locking block; 14. Locking groove; 15. Reset spring; 16. Pull plate; 17. Pull groove; 18. Heating rod; 19. Mounting groove; 20. Temperature sensor; 21. Controller; 22. Power regulator; 23. Metal strip. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Reference Figure 1-5This utility model provides a specific embodiment: a novel preheating guide device, including a preheating base 1, a positioning copper block 2 engaged at the upper end of the preheating base 1, a replacement component 3 between the preheating base 1 and the positioning copper block 2, multiple connecting grooves 4 opened at the upper end of the positioning copper block 2, ceramic bearings 5 ​​fixedly connected inside the multiple connecting grooves 4, positioning shafts 6 fixedly sleeved inside the multiple ceramic bearings 5, a metal strip 23 provided at the upper end of the positioning copper block 2, the metal strip 23 movably disposed between the corresponding multiple positioning shafts 6, when a single metal strip 23 is fed, it is positioned by the corresponding four ceramic bearings 5 ​​to prevent the strip from deviating from the center, and when the side of the moving metal strip 23 contacts the ceramic bearing 5, the ceramic bearing 5 rotates, avoiding hard friction between the metal strip and the guide device, thereby avoiding scratches or metal debris;

[0035] The replacement assembly 3 includes two first connecting plates 7 and two second connecting plates 8. Both first connecting plates 7 are fixedly connected to the positioning copper block 2, and both second connecting plates 8 are fixedly connected to the preheating base 1. A connecting plug 9 is fixedly connected to the lower end of each of the two first connecting plates 7. A connecting slot 10 is provided at the upper end of each of the two second connecting plates 8. A reset groove 11 is provided on the inner wall of one side of each of the two connecting slots 10, near the front and rear. Movable rods 12 are movably arranged inside each of the reset grooves 11. A locking block 13 is fixedly connected to one end of each of the multiple movable rods 12 near the corresponding connecting plug 9. One end of each of the two movable rods 12 on the same side passes through the corresponding second connecting plate 8 and is fixedly connected to a pull plate 16. Pull grooves 17 are provided at the upper and lower ends of each of the two pull plates 16. The pull plates 16 and pull grooves 17 allow operators to easily control the movement of the locking block 13 by pulling the pull plates 16. Locking grooves 14 are provided on one side of each of the two connecting plugs 9, near the front and rear. Each connecting plug 9 is located in its corresponding connecting slot. The locking mechanism is designed with multiple locking blocks 13 engaged in the corresponding locking slots 14. By engaging the connecting plug 9 in the corresponding connecting slot 10 and the locking blocks 13 in the corresponding locking slots 14, the positioning copper block 2 can be fixed. The outer walls of multiple movable rods 12 are movably fitted with return springs 15. The two ends of the multiple return springs 15 are fixedly connected to the inner walls of the corresponding locking blocks 13 and the return slots 11 on opposite sides. By effectively restricting the return springs 15, the locking blocks 13 can be automatically ejected. With the replacement component 3, when it is necessary to guide metal strips 23 of different specifications, the pull plate 16 is pulled to disengage the locking blocks 13 from the locking slots 14, and the positioning copper block 2 can be quickly removed. During installation, the corresponding positioning copper block 2 is inserted into the preheating seat 1, and the return spring 15 causes the locking block 13 to eject and engage in the locking slots 14 to complete the fixation. This facilitates the replacement of the positioning copper block 2 with the positioning shaft rod 6 of appropriate spacing, and can better meet various working needs.

[0036] A heating rod 18 is fixedly installed at the upper end of the preheating base 1, and an installation groove 19 is opened at the lower end of the preheating base 1. Multiple temperature sensors 20, a controller 21, and a power regulator 22 are fixedly installed on the inner wall of the upper end of the installation groove 19. The temperature sensors 20, controller 21, power regulator 22, and heating rod 18 are all electrically connected. The heating rod 18 is in contact with the positioning copper block 2, and the detection end of the temperature sensor 20 is in contact with the positioning copper block 2. By making the heating rod 18 in contact with the positioning copper block 2, the positioning copper block 2 can be effectively heated after the heating rod 18 is started. By directly contacting the detection end of the temperature sensor 20 with the positioning copper block 2, the surface temperature change of the positioning copper block 2 can be captured in real time. The positioning copper block 2 is heated by starting the heating rod 18. At the same time, the temperature sensor 20 monitors the heating temperature of the positioning copper block 2, and the controller 21 and power regulator 22 control and adjust the heating intensity of the heating rod 18 to stabilize its temperature within the process requirements range.

[0037] Working principle: When a single metal strip 23 is fed, it is positioned by four corresponding ceramic bearings 5 ​​to prevent the strip from deviating from the center. Simultaneously, when the side of the moving metal strip 23 contacts the ceramic bearing 5, the ceramic bearing 5 rotates, avoiding hard friction between the metal strip and the guide device, thus preventing scratches or metal debris. Furthermore, the metal strip 23 passes directly over the preheating base and is directly preheated by the positioning copper block 2 on the guide part, therefore there is no temperature difference issue. The temperature control of the positioning copper block 2 is achieved by activating the heating rod 18 to heat the positioning copper block 2, while a temperature sensor 20 monitors the heating temperature of the positioning copper block 2 and transmits the temperature through a controller 21 and a power regulator 2. 2. Control and adjust the heating intensity of the heating rod 18 to stabilize its temperature within the process requirements. In addition, when it is necessary to guide metal strips 23 of different specifications, the positioning copper block 2 with a suitable spacing positioning shaft rod 6 can be quickly replaced by the provided replacement component 3. Specifically, by pulling the pull plate 16, the locking block 13 moves away from the locking groove 14, thereby releasing the fixing restriction on the connecting plug 9, and then the positioning copper block 2 can be directly removed. During subsequent installation, the corresponding positioning copper block 2 only needs to be inserted into the preheating seat 1. At this time, the provided return spring 15 can make the locking block 13 pop out and be inserted into the locking groove 14, thereby completing the fixed installation of the positioning copper block 2, so that the device can be better applied to various working needs.

[0038] The following points should be noted in this article:

[0039] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0040] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel preheating guide device, comprising a preheating base (1), characterized in that: The upper end of the preheating base (1) is fitted with a positioning copper block (2), and a replacement component (3) is provided between the preheating base (1) and the positioning copper block (2). The upper end of the positioning copper block (2) is provided with multiple connecting grooves (4), and ceramic bearings (5) are fixedly connected inside the multiple connecting grooves (4). A positioning shaft (6) is fixedly sleeved inside the multiple ceramic bearings (5). The replacement assembly (3) includes two first connecting plates (7) and two second connecting plates (8). The two first connecting plates (7) are fixedly connected to the positioning copper block (2), and the two second connecting plates (8) are fixedly connected to the preheating seat (1). The lower ends of the two first connecting plates (7) are fixedly connected to the connecting plug (9), and the upper ends of the two second connecting plates (8) are provided with connecting slots (10). The inner walls of the two connecting slots (10) are provided with reset grooves (11) at the front and rear. The interior of the multiple reset grooves (11) is movably provided with movable rods (12). The ends of the multiple movable rods (12) near the corresponding connecting plugs (9) are fixedly connected with locking blocks (13). The front and rear sides of the two connecting plugs (9) are provided with locking grooves (14). The outer walls of the multiple movable rods (12) are movably sleeved with reset springs (15).

2. The novel preheating guide device according to claim 1, characterized in that: A heating rod (18) is fixedly installed at the upper end of the preheating base (1), and an installation groove (19) is opened at the lower end of the preheating base (1). Multiple temperature sensors (20), controllers (21) and power regulators (22) are fixedly installed on the inner wall of the upper end of the installation groove (19). The temperature sensors (20), controllers (21), power regulators (22) and heating rods (18) are all electrically connected.

3. The novel preheating guide device according to claim 1, characterized in that: One end of each of the two movable rods (12) located on the same side passes through the corresponding second connecting plate (8) and is fixedly connected to a pull plate (16). The upper and lower ends of the two pull plates (16) are provided with pull grooves (17).

4. A novel preheating guide device according to claim 2, characterized in that: The heating rod (18) and the positioning copper block (2) are in contact, and the detection end of the temperature sensor (20) is in contact with the positioning copper block (2).

5. A novel preheating guide device according to claim 1, characterized in that: Both of the connecting blocks (9) are engaged in the corresponding connecting slots (10), and the multiple locking blocks (13) are engaged in the corresponding locking grooves (14).

6. A novel preheating guide device according to claim 1, characterized in that: Both ends of the plurality of reset springs (15) are fixedly connected to the inner wall of the opposite side of the corresponding locking block (13) and reset groove (11).

7. A novel preheating guide device according to claim 1, characterized in that: The upper end of the positioning copper block (2) is provided with a metal strip (23), which is movably disposed between the corresponding multiple positioning shafts (6).

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