Spraying mechanism and coil stock pretreatment device

Abstract

The utility model discloses a spraying mechanism and a coil stock pretreatment device, the spraying mechanism is used for spraying adhesive to the back of foil, the spraying mechanism comprises a protective plate, a stock guide plate, a support, a spraying pipe arranged on the support and a plurality of sprayers arranged on the spraying pipe, the length direction of the spraying pipe extends along the axis direction of the coil stock, the spraying pipe is located on one side of the back of the foil, and the sprayers are arranged on the back of the foil. The spraying pipes are arranged on the back face of the foil, the spraying nozzles face the back face of the foil, the protection plate is used for preventing an adhesive from floating to equipment or the ground, the protection plate is located between the spraying pipes and the foil, the protection plate is provided with a spraying opening, the spraying nozzles face the spraying opening, and the material guiding plate is located below the protection plate. Compared with the prior art, the automatic adhesive spraying device can achieve automatic adhesive spraying, improve spraying consistency and improve the success rate of automatic roll changing, in addition, due to the arrangement of the protection plate and the material guide plate, the service life of the device can be prolonged, the ground can be kept clean, and potential safety hazards caused by the fact that the ground is wet and slippery can be eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of coating equipment, in particular to a spraying mechanism and a coiled material pretreatment device. Background Art

[0002] In the production process of lithium battery electrodes, a turret unwinding device is generally used for unwinding. The turret unwinding device has two reels, each of which is loaded with coils. The two reels unwind the coils alternately. After the coil on one reel is produced, the empty reel on the turret unwinding device needs to be unloaded, and the foil on the new coil needs to be glued to the foil at the tape path to continue production.

[0003] Conventional new coils have several labels attached to the foil head. Before loading the new coil into the turret unwinding equipment, the new coil needs to be pre-processed. First, the labels attached to the new coil are torn off, and then the contaminated and bumped foil on the outer layer of the new coil is cut off and a sample is kept. Finally, double-sided tape is attached to the broken end of the coil head and the release paper is removed to ensure the success rate of the subsequent automatic splicing process.

[0004] Before automatic roll changing, the turret unwinding device drives the new roll to rotate in the opposite direction of winding in advance and reach the same speed as the other unwinding shaft. At this time, the new roll is easy to unwind, causing the foil material head of the new roll to easily fall out of its original position, making it impossible to complete automatic roll changing.

[0005] Therefore, before sticking double-sided tape on the foil head of the new roll, it is necessary to spray adhesive on the back of the foil head of the new roll (that is, the side of the foil close to the axis of the new roll) and press it back onto the new roll to prevent it from unrolling.

[0006] However, in the existing pre-treatment of new coils, adhesive is generally sprayed manually on the back of the foil head. The consistency of manual spraying is poor, thereby affecting the success rate of automatic coil replacement. Moreover, during the spraying process, the adhesive is easily sprayed onto equipment or the ground. On the one hand, it causes easy damage to the equipment and shortens the service life of the equipment. On the other hand, it pollutes the production environment and makes the ground slippery, posing a safety hazard to production personnel. Utility Model Content

[0007] In order to overcome the shortcomings of the existing technology, the utility model provides a spraying mechanism and a coil pretreatment device, which can realize automatic spraying of adhesive, improve the consistency of spraying, and improve the success rate of automatic roll changing. In addition, by setting a protective plate, the adhesive can be prevented from spilling onto the equipment or the ground, thereby increasing the service life of the equipment. Moreover, it can keep the ground clean and eliminate the safety hazards caused by wet and slippery ground.

[0008] The technical solution adopted by the utility model to solve its technical problems is:

[0009] A spraying mechanism is used to spray adhesive onto the back side of a foil, comprising a protective plate, a bracket, a nozzle arranged on the bracket, and a plurality of nozzles arranged on the nozzle. The length direction of the nozzle extends along the axial direction of the coil. The nozzle is located on the back side of the foil, and the plurality of nozzles are facing the back side of the foil. The protective plate is used to prevent the adhesive from spilling onto equipment or the ground.

[0010] As a further improvement of the above technical solution, the protective plate is located between the nozzle and the foil, the protective plate is provided with a spraying port, and the plurality of nozzles face the spraying port.

[0011] As a further improvement of the above technical solution, it also includes a material guide plate, which is located below the protective plate and is used to receive the adhesive dripping from the protective plate and drain the adhesive to the bottom of the material guide plate.

[0012] As a further improvement of the above technical solution, the upper portion of the guide plate is inclined toward the nozzle side, and the lower portion of the guide plate is vertically arranged.

[0013] As a further improvement of the above technical solution, flanges are provided on the top and bottom of the guide plate, the flanges protrude toward one side of the nozzle, and the flanges are bent inwards.

[0014] As a further improvement of the above technical solution, both sides of the guide plate are fixedly installed through mounting seats.

[0015] As a further improvement of the above technical solution, both sides of the guide plate are bent inward to form a mounting plate, and the mounting plate is connected to the mounting seat by bolts.

[0016] As a further improvement of the above technical solution, the mounting plate is provided with a first mounting hole and a nut, the first mounting hole corresponds to the nut, the mounting seat is provided with a second mounting hole, the first mounting hole corresponds to the second mounting hole, and the bolt passes through the second mounting hole and the first mounting hole in sequence and then is threadedly connected to the nut.

[0017] As a further improvement of the above technical solution, a plurality of branch pipes are provided on the nozzle, and a plurality of the nozzles are respectively provided at the ends of the plurality of branch pipes.

[0018] A coil material pre-processing device comprises a frame and a waste material box. The waste material box and the spraying mechanism are arranged on the frame, and the waste material box is located directly below the material guide plate.

[0019] The beneficial effects of the present invention are as follows: the present invention provides a spraying mechanism, which provides a nozzle and a plurality of nozzles provided on the nozzle, wherein the feeding device delivers the adhesive into the nozzle, and the nozzle sprays the adhesive toward the back of the foil, thereby realizing automatic spraying of the adhesive, improving the consistency of the spraying, and improving the success rate of automatic roll changing. In addition, by providing a protective plate and a material guide plate, the adhesive can be prevented from being scattered onto the equipment or the ground, thereby improving the service life of the equipment, and can keep the ground clean, eliminating the safety hazards caused by the wet and slippery ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 It is a structural diagram provided by an embodiment of the present utility model;

[0022] Figure 2 It is a structural schematic diagram of the utility model from another perspective;

[0023] Figure 3 yes Figure 2 sectional view of

[0024] Figure 4 yes Figure 1 Exploded view of the middle guide plate and mounting base;

[0025] Figure 5 yes Figure 3 Enlarged view of point A in the middle.

[0026] Figure markings: 1-protective plate, 2-bracket, 3-nozzle, 4-nozzle, 5-material guide plate, 6-mounting seat, 7-frame, 8-waste box, 11-spray port, 31-branch pipe, 51-flange, 52-mounting plate, 61-bolt, 62-second mounting hole, 521-first mounting hole, 522-nut. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technical personnel in this field without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the present invention can be combined interactively without conflicting with each other.

[0028] Reference Figures 1 to 5 , an embodiment of a coil pretreatment device is provided.

[0029] Structurally, the coil pre-processing device of this embodiment includes a frame 7 and a waste material box 8 arranged on the frame 7.

[0030] Furthermore, the embodiment of the present invention also provides a spraying mechanism, which is arranged on a frame 7, including a protective plate 1, a guide plate 5, a bracket 2, a nozzle 3 arranged on the bracket 2, and a plurality of nozzles 4 arranged on the nozzle 3. The protective plate 1 is arranged on the bracket 2, and the guide plate 5 and the bracket 2 are both arranged on the frame 7. The guide plate 5 is located directly below the protective plate 1, and the waste box 8 is located directly below the guide plate 5. The length direction of the nozzle 3 extends along the axial direction of the coil. The nozzle 3 is located on the back side of the foil, and the plurality of nozzles 4 face the back side of the foil. One end of the nozzle 3 is connected to an external feeding device (not shown in the figure), the protective plate 1 is located between the nozzle 3 and the foil, and the protective plate 1 is provided with a spray port 11. The plurality of nozzles 4 face the spray port 11. When the new coil is cut, the feeding device transports the adhesive into the nozzle 3 It should be noted that the adhesive can be a liquid such as water or alcohol. Then, the adhesive sprayed from the nozzle 4 is sprayed onto the back of the foil through the spray port 11. At the same time, the protective plate 1 is used to prevent the adhesive from spilling onto the equipment or the ground. In addition, the adhesive sprayed on the protective plate 1 flows along the inner wall of the protective plate 1 to the guide plate 5 below. The guide plate 5 receives the adhesive dripping from the protective plate 1 and drains the adhesive into the waste box 8 below. Moreover, the guide plate 5 can also block the adhesive sprayed from the nozzle 4, thereby realizing automatic spraying of the adhesive, improving the consistency of the spraying, and improving the success rate of automatic roll changing. In addition, by setting the protective plate 1 and the guide plate 5, the service life of the equipment can be improved, and the ground can be kept clean, eliminating the safety hazards caused by the wet and slippery ground.

[0031] Furthermore, the upper part of the guide plate 5 is inclined toward the side of the nozzle 3, and the lower part of the guide plate 5 is vertically arranged. The projection area of the inclined part of the guide plate 5 in the vertical direction is larger, which is convenient for receiving the adhesive dripping from the protective plate 1. The vertical part of the guide plate 5 can quickly flow the received adhesive into the waste box 8 below for collection.

[0032] Furthermore, flanges 51 are provided on the top and bottom of the guide plate 5 , and the flanges 51 protrude toward one side of the nozzle 3 , thereby further preventing the adhesive from being scattered onto the equipment or the ground.

[0033] Furthermore, the flange 51 is bent inward, thereby preventing the flange 51 from scratching the operator.

[0034] Preferably, the guide plate 5 is a thin sheet metal part for easy molding.

[0035] In some preferred embodiments, both sides of the guide plate 5 are fixed to both sides of the frame 7 through the mounting base 6. Specifically, both sides of the guide plate 5 are bent inward to form a mounting plate 52, and the mounting plate 52 is connected to the mounting base 6 by bolts 61, thereby facilitating installation and disassembly and improving assembly efficiency.

[0036] More specifically, the mounting plate 52 is provided with a first mounting hole 521 and a nut 522, the first mounting hole 521 corresponds to the nut 522, the mounting seat 6 is provided with a second mounting hole 62, the first mounting hole 521 corresponds to the second mounting hole 62, and the bolt 61 passes through the second mounting hole 62 and the first mounting hole 521 in sequence and then is threadedly connected to the nut 522, thereby achieving precise positioning.

[0037] In some preferred embodiments, the nozzle 3 is provided with a plurality of branch pipes 31 , and the plurality of nozzles 4 are respectively provided at the ends of the plurality of branch pipes 31 , thereby facilitating the installation and arrangement of the nozzles 4 .

[0038] Specifically, the end of the branch pipe 31 is provided with an internal thread, and the joint of the nozzle 4 is provided with an external thread. The external thread of the nozzle 4 is screwed into the internal thread to facilitate the connection between the nozzle 4 and the branch pipe 31.

[0039] Furthermore, the nozzle 4 is an angle-adjustable nozzle 4 , and by adjusting the spraying angle of the nozzle 4 , the adhesive can be precisely sprayed onto the back side of the foil.

[0040] The above is a specific description of the preferred implementation of the present invention, but the invention of the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A spraying mechanism for spraying adhesive onto the back side of a foil, characterized in that: It includes a protective plate, a bracket, a nozzle arranged on the bracket, and several nozzles arranged on the nozzle. The length direction of the nozzle extends along the axial direction of the coil. The nozzle is located on the back side of the foil, and several of the nozzles are facing the back side of the foil. The protective plate is used to prevent the adhesive from spilling onto the equipment or the ground.

2. A spraying mechanism according to claim 1, characterized in that: The protective plate is located between the nozzle and the foil. The protective plate is provided with a spraying port, and the plurality of nozzles face the spraying port.

3. A spraying mechanism according to claim 2, characterized in that: It also includes a material guide plate, which is located below the protective plate and is used to receive the adhesive dripping from the protective plate and drain the adhesive to the bottom of the material guide plate.

4. A spraying mechanism according to claim 3, characterized in that: The upper portion of the guide plate is inclined toward one side of the nozzle, and the lower portion of the guide plate is vertically arranged.

5. A spraying mechanism according to claim 4, characterized in that: The top and bottom of the guide plate are both provided with flanges, the flanges protrude toward one side of the nozzle, and the flanges are bent inwards.

6. A spraying mechanism according to claim 3, characterized in that: Both sides of the guide plate are fixedly installed through mounting seats.

7. A spraying mechanism according to claim 6, characterized in that: Both sides of the guide plate are bent inward to form a mounting plate, and the mounting plate is connected to the mounting seat by bolts.

8. A spraying mechanism according to claim 7, characterized in that: The mounting plate is provided with a first mounting hole and a nut, the first mounting hole corresponds to the nut, the mounting seat is provided with a second mounting hole, the first mounting hole corresponds to the second mounting hole, and the bolt passes through the second mounting hole and the first mounting hole in sequence and then is threadedly connected to the nut.

9. A spraying mechanism according to claim 1, characterized in that: The nozzle is provided with a plurality of branch pipes, and the plurality of nozzles are respectively provided at the ends of the plurality of branch pipes.

10. A coil pre-processing device, comprising a frame and a waste box, wherein the waste box and the spraying mechanism according to any one of claims 1 to 9 are arranged on the frame, and the waste box is located directly below the guide plate.

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