A hot glue coating machine for carbon crystal plate surface coating

Abstract

The utility model discloses a kind of hot glue coating machines for carbon crystal plate surface coating, it is related to carbon crystal plate production technical field, specifically including carbon crystal plate conveying structure, the upper of carbon crystal plate conveying structure is provided with heating cavity and coating cavity, and the heating cavity and coating cavity are in the state of intercommunication, the side of coating cavity close to heating cavity is provided with coating structure, the coating structure includes coating reel fixed structure, glue solution storage tank, and the coating structure is connected with the glue solution storage tank outlet end and is coated structure, first visual sensor, setting in the bearing plate below coated structure, membrane roller group and coating pressure roller.The hot glue coating machine for carbon crystal plate surface coating, utilizes pusher roller to realize side spraying glue side cleaning glue hole, guarantees glue spraying quality, and then guarantees glue coating quality;With visual monitoring function, carbon crystal plate coating quality and carbon crystal plate coating quality can be monitored in real time, it is convenient to find and correct defect in time, guarantee product yield.

Description

Technical Field

[0001] This utility model relates to the field of carbon crystal plate production technology, specifically a hot glue coating machine for carbon crystal plate surface coating. Background Technology

[0002] Carbon crystal panels, as a new type of environmentally friendly decorative material, have been widely used in the fields of building, home, and commercial space decoration in recent years. Their base material is typically made of bamboo and wood fibers, calcium powder, resin, and other materials through high-temperature and high-pressure co-extrusion, and then covered with PVC or PET film to enhance surface wear resistance, water resistance, and decorative effect.

[0003] The surface coating of carbon crystal boards can be performed using a hot glue coating machine during the production process. The specific operation involves: placing PUR hot melt adhesive or solid adhesive into a glue tank and heating it to melt it into a liquid state; uniformly applying the hot adhesive to the back of the decorative film using a scraper head or roller coating system; placing the substrate on a material support frame and adjusting the positions of the guide rollers and pressure rollers to ensure the film is aligned with the substrate and prevent misalignment; pressing point-by-point using silicone pressure rollers; and trimming excess film edges to complete the coating operation. During this process, the glue outlet of the scraper head or the gaps in the coating rollers are easily clogged by the adhering adhesive, resulting in uneven glue application, leading to problems such as glue breaks, glue build-up, or bubbles, affecting usability. Furthermore, carbon crystal boards require heat preservation treatment before and during coating, and the high temperature of the carbon crystal board after coating affects the handling of materials by workers. Therefore, this application proposes a hot glue coating machine for surface coating of carbon crystal boards. Utility Model Content

[0004] This invention provides a hot adhesive coating machine for carbon crystal plate surface coating, which solves the problems mentioned in the background art, such as the glue outlet of the scraper head or the gap of the coating roller being easily blocked by the adhesive liquid, affecting the uniformity of glue application; and the high temperature of the carbon crystal plate after coating, which affects the material handling by the workers.

[0005] This utility model provides the following technical solution: a hot adhesive coating machine for coating the surface of a carbon crystal plate, comprising a carbon crystal plate conveying structure, a heating chamber and a coating chamber being arranged above the carbon crystal plate conveying structure, and the heating chamber and the coating chamber being in a connected state. A coating structure is arranged on the side of the coating chamber near the heating chamber. The coating structure includes a coating roll fixing structure, an adhesive storage tank, a coating structure connected to the outlet end of the adhesive storage tank, a first vision sensor, a support plate arranged below the coating structure, a film feeding roller group and a coating pressure roller. The coating structure includes a buffer box and a scraper connected to the outlet end of the adhesive storage tank. Adhesive outlet holes are evenly arranged at the bottom of the inner cavity of the buffer box. An opening and closing door is arranged at the top of the inner cavity of the buffer box. A fixed mesh plate is movably connected to the inner cavity of the buffer box. The fixed mesh plate is connected to the adhesive storage tank through a second lifting structure. Push rollers adapted to the adhesive outlet holes are evenly arranged at the bottom of the fixed mesh plate.

[0006] Preferably, the heating cavity is provided with a heating plate and a positioning structure. The positioning structure includes a positioning push plate. Positioning push plates are provided on both sides of the bottom end of the heating cavity. The positioning push plates are connected to the heating cavity through a first telescopic structure.

[0007] Preferably, a second vision sensor and a cutting structure are provided on the side of the coating cavity away from the heating cavity. The second vision sensor is located on the side of the cutting structure away from the heating cavity. The cutting structure includes a cutter and two rolling rollers. The rolling rollers are movably connected to the coating cavity. The cutter is located between the two rolling rollers. The cutter is connected to the coating cavity through a first lifting structure. The bottom of the rolling rollers is at the same height as the bottom of the coating rollers.

[0008] Preferably, the scraper is located between the buffer box and the first vision sensor, and the scraper is located on the side of the buffer box closer to the heating chamber; two adjacent glue outlets are staggered.

[0009] Preferably, it also includes a heat recovery structure, which includes a cooling component, a preheating component, and a blower disposed above the carbon crystal plate conveying structure. The heating chamber and the coating chamber are located between the cooling component and the preheating component. The cooling component is located on the side of the heating chamber away from the coating chamber. The air outlet of the blower is connected to the air inlet of the cooling component, and the air outlet of the cooling component is connected to the air inlet of the preheating component.

[0010] Preferably, both the cooling component and the preheating component include a plurality of heat exchange tubes, with the air inlet ends of two adjacent heat exchange tubes connected by a first connecting pipe and the air outlet ends of two adjacent heat exchange tubes connected by a second connecting pipe.

[0011] Preferably, the coating structure further includes a cleaning component, which includes a lower scraper adapted to the bottom of the buffer box and a side scraper adapted to the scraper. The lower scraper and the side scraper are connected to the adhesive storage tank through a translation structure.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This hot glue coating machine for carbon crystal board surface coating uses a pusher roller to spray glue and clean the glue outlet at the same time, ensuring the quality of glue spraying and thus the quality of glue application; it has a visual monitoring function, which can monitor the quality of film coating and the quality of carbon crystal board film coating in real time, so as to facilitate the timely detection and correction of defects and ensure product yield.

[0014] 2. The hot glue coating machine for carbon crystal plate surface coating is equipped with a heat recovery structure, which can realize the heat recovery of the carbon crystal plate after coating, making it convenient to pick up the parts. At the same time, the recovered heat can be used to raise the temperature of the carbon crystal plate to be preheated, reducing the preheating loss of the carbon crystal plate. In addition, the carbon crystal plate can be positioned during the heating process, so that the carbon crystal plate and the coating can be aligned, ensuring the coating quality. Attached Figure Description

[0015] Figure 1 This is a front view of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the back of the structure of this utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the coating structure of this utility model;

[0019] Figure 5 The structure of this utility model Figure 4 Diagram showing the view from below;

[0020] Figure 6 This is a bottom view of the buffer box structure of this utility model;

[0021] Figure 7 This is a cross-sectional schematic diagram of the buffer box structure of this utility model.

[0022] In the diagram: 1. Carbon crystal plate conveying structure; 2. Coating chamber; 3. Heating chamber; 4. Cooling component; 5. Preheating component; 6. Blower; 7. Fourth drive structure; 8. Roller roller; 9. Coating pressure roller; 10. Third drive structure; 11. Heating plate; 12. Positioning push plate; 13. First telescopic structure; 14. Adhesive storage tank; 15. Nut; 16. Second vision sensor; 17. Cutter; 18. Screw; 19. First drive structure; 20. First vision sensor; 21. Scraper; 2. Side scraper; 23. Bearing plate; 24. Limiting plate; 25. First horizontal film feeding roller; 26. Guide roller; 27. Second horizontal film feeding roller; 28. Stud; 29. ​​Translation structure; 30. Glue outlet; 31. Buffer box; 32. Lower scraper; 33. First connecting pipe; 34. Second lifting structure; 35. Door panel; 36. Sealing block; 37. Fixed mesh plate; 38. Push roller; 39. Second drive structure; 40. First lifting structure; 41. Heat exchanger pipe; 42. Second connecting pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides an embodiment: Please refer to Figures 1-7 A hot-adhesive coating machine for coating the surface of a carbon crystal plate includes a carbon crystal plate conveying structure 1. The carbon crystal plate conveying structure 1 is existing technology, capable of stably conveying and accurately positioning the carbon crystal plate, and will not be described in detail here. A heating chamber 3 and a coating chamber 2 are disposed above the carbon crystal plate conveying structure 1, and the heating chamber 3 and the coating chamber 2 are in communication. In use, the carbon crystal plate conveying structure 1 is used to convey the carbon crystal plate to be coated, and the carbon crystal plate can sequentially pass through the heating chamber 3 and the coating chamber 2.

[0025] The heating chamber 3 is equipped with a heating plate 11 and a positioning structure. When the heating plate 11 is powered on, it can dissipate heat. During the movement of the carbon crystal plate in the heating chamber 3, the heating plate 11 can preheat the surface of the carbon crystal plate, which is convenient for the coating of the carbon crystal plate. The heating plate 11 adopts existing mature technology, which realizes the preheating function of the carbon crystal plate by heating through power, and can achieve precise temperature control. The positioning structure includes positioning push plates 12. Positioning push plates 12 are provided on both sides of the bottom end of the heating cavity 3. The positioning push plates 12 are connected to the heating cavity 3 through the first telescopic structure 13. Under the action of the first telescopic structure 13, the position of the positioning push plates 12 in the heating cavity 3 can be changed. When the carbon crystal plate is in use during the conveying process, when the carbon crystal plate is located between the two positioning push plates 12, the cooperation of the two positioning push plates 12 can push the carbon crystal plate to move, change the position of the carbon crystal plate on the carbon crystal plate conveying structure 1, realize the adjustment of the position of the carbon crystal plate, so that the carbon crystal plate can be adjusted to the preset position during the conveying process, so that the carbon crystal plate and the coating can be aligned, which facilitates the coating of the carbon crystal plate.

[0026] The first telescopic structure 13 is existing technology and can achieve stable rotation and precise positioning of the positioning push plate 12.

[0027] A coating structure is provided on the side of the coating chamber 2 near the heating chamber 3. The coating structure includes a coating roll fixing structure, an adhesive storage tank 14, a coating structure connected to the liquid outlet of the adhesive storage tank 14, a first vision sensor 20, a support plate 23 set below the coating structure, a film feeding roller group and a coating pressure roller 9.

[0028] The coating roll fixing structure includes a screw 18 and a first drive structure 19 that drives the screw 18 to rotate. The output end of the screw 18 and the first drive structure 19 are detachably connected. The outer ring of the screw 18 is movably fitted with the coating roll, and two nuts 15 are threadedly connected to the outer ring of the screw 18. The two nuts 15 clamp and fix the coating roll. Through the setting of the coating roll fixing structure, during use, the first drive structure 19 can drive the screw 18 to rotate, and the screw 18 drives the coating roll to rotate through the nuts 15. The coating wrapped on the coating roll can be separated from the coating roll. When the coating roll needs to be replaced, the operator can remove the screw 18, remove the nuts 15, and then replace the coating roll. The first drive structure 19 is existing technology and can achieve stable rotation and precise positioning of the screw 18, meeting the coating requirements of carbon crystal plates.

[0029] The film feeding roller assembly includes a first horizontal film feeding roller 25, a second horizontal film feeding roller 27, and a guide roller 26. The bottom and the side of the first horizontal film feeding roller 25 away from the heating chamber 3, the top and the side of the second horizontal film feeding roller 27 near the heating chamber 3, and the bottom and the side of the guide roller 26 near the heating chamber 3 are all in contact with the carbon crystal plate coating. The carbon crystal plate coating is horizontal between the first horizontal film feeding roller 25 and the second horizontal film feeding roller 27, and the bottom of the horizontal section of the carbon crystal plate coating is in contact with the top of the support plate 23. The bottom of the guide roller 26 is at the same height as the bottom of the coating pressure roller 9.

[0030] The film feeding roller assembly also includes two limiting plates 24, which are sleeved on the first horizontal film feeding roller 25, the second horizontal film feeding roller 27, and the guide roller 26. The coating is located between the two limiting plates 24 to prevent deviation during the coating conveying process. One end of the limiting plate 24 is provided with a C-shaped cavity, and the carrier plate 23 is located in the C-shaped cavity. The bottom of the C-shaped cavity is threaded with a stud 28, which is used to connect the limiting plate 24 and the carrier plate 23.

[0031] The coating structure and the first vision sensor 20 are located above the horizontal section of the carbon crystal plate coating. The coating structure includes a buffer box 31 connected to the outlet end of the adhesive storage tank 14 and a scraper 21. The scraper 21 is located between the buffer box 31 and the first vision sensor 20, and is located on the side of the buffer box 31 closer to the heating chamber 3. In use, the adhesive used for coating the carbon crystal plate is discharged to the coating surface through the buffer box 31. The scraper 21 is used to spread the adhesive evenly, and the first vision sensor 20 is used to detect the quality of adhesive application. After coating, the coating can contact the top of the carbon crystal plate under the action of the second horizontal film feeding roller 27 and the guide roller 26. The coating pressure roller 9 presses the coating and the carbon crystal plate simultaneously, so that the coating and the carbon crystal plate can cover the surface of the carbon crystal plate, realizing the coating operation on the surface of the carbon crystal plate. A third drive structure 10 is provided on the coating chamber 2. The third drive structure 10 is the prior art and can realize the stable rotation and precise positioning of the coating pressure roller 9. When the coating pressure roller 9 is driven by the third drive structure 10, it can provide stable pressure to the coating and carbon crystal plate, which facilitates the bonding of the coating and the carbon crystal plate.

[0032] The bottom of the inner cavity of the buffer box 31 is uniformly provided with glue outlet holes 30, and adjacent glue outlet holes 30 are staggered to facilitate uniform spraying of glue onto the coating. A fixed screen plate 37 is movably connected to the inner cavity of the buffer box 31. The fixed screen plate 37 is connected to the glue storage tank 14 via a second lifting structure 34. Push rollers 38, adapted to the glue outlet holes, are uniformly provided at the bottom of the fixed screen plate 37. The extension and retraction of the second lifting structure 34 can change the position of the fixed screen plate 37. When the fixed screen plate 37 moves, it can drive the push rollers 38 to move. In use, the push rollers 38 can squeeze out the glue from the glue outlet holes, achieving glue discharge and preventing blockage, thus ensuring the quality of glue spraying. The second lifting structure 34 is existing technology and can achieve stable movement and precise positioning of the fixed screen plate 37. When the push rollers 38 separate from the glue outlet holes 30, the glue can re-enter the glue outlet holes 30 under gravity.

[0033] The top of the inner cavity of the buffer box 31 is provided with an opening and closing door. The opening and closing door can be used to make the inner cavity of the adhesive storage box 14 connected or separated from the inner cavity of the buffer box 31, so that the PUR hot melt adhesive or solid adhesive used for carbon crystal plate coating can be put into the adhesive storage box 14 and heated to melt it into liquid. The adhesive storage box 14 is existing technology and has an intelligent temperature control system, which can realize stable heating of solid adhesive and heat preservation of liquid adhesive, so that the adhesive is always kept in the best working state.

[0034] In Embodiment 1 of this application, the opening and closing door includes a door panel 35 movably connected to the top of the inner cavity of the buffer box 31 and a second driving structure 39 for driving the door panel 35 to rotate. The second driving structure 39 is prior art and can achieve stable rotation and precise positioning of the door panel 35. Door panels 35 are movably connected to both sides of the top of the inner cavity of the buffer box 31. When the two door panels 35 are in a horizontal state, a circular groove is formed in the middle of the two door panels 35. A sealing block 36 adapted to the circular groove is provided on the top of the fixed mesh plate 37. When the two door panels 35 are in a horizontal state and the circular groove is blocked by the sealing block 36, the inner cavity of the adhesive storage box 14 and the inner cavity of the buffer box 31 are in an independent state. A sealing strip is provided on the outer wall of the door panel 35 to improve the sealing between the door panel 35 and the buffer box 31 or between the two door panels 35.

[0035] The surface of the coated structure is provided with an anti-stick coating. The material of the anti-stick coating can be selected according to the requirements and is not limited here.

[0036] As can be seen from the above description, during the use of this application, the pusher roller 38 is used to clean the glue outlet 30 while spraying glue, so as to ensure the quality of glue spraying and thus the quality of glue application.

[0037] The coating structure also includes a cleaning component, which includes a lower scraper 32 adapted to the bottom of the buffer box 31 and a side scraper 22 adapted to the scraper 21. The lower scraper 32 and the side scraper 22 are connected to the adhesive storage tank 14 through a translation structure 29. When the scraper 21 needs to be cleaned, the translation structure 29 drives the lower scraper 32 and the side scraper 22 to move simultaneously. The lower scraper 32 scrapes off the adhesive adhering to the bottom of the buffer box 31, and the side scraper 22 scrapes off the adhesive adhering to the scraper 21, ensuring the effectiveness of the coating structure.

[0038] A second vision sensor 16 and a cutting structure are located on the side of the coating chamber 2 away from the heating chamber 3. The second vision sensor 16 is located on the side of the cutting structure away from the heating chamber 3. The cutting structure includes a cutter 17 and two rolling rollers 8. The rolling rollers 8 are movably connected to the coating chamber 2, and the cutter 17 is located between the two rolling rollers 8. The cutter 17 is connected to the coating chamber 2 via a first lifting structure 40. The bottom of the rolling rollers 8 is at the same height as the bottom of the coating pressure rollers 9. The coating chamber 2 is provided with a fourth driving structure 7, which drives the rolling rollers 8 to rotate. The rolling rollers 8 can press the coated carbon crystal plate, facilitating the cutter 17 to cut the coating and allowing adjacent coated carbon crystal plates to be separated. Both the first lifting structure 40 and the fourth driving structure 7 are existing technologies. The first lifting structure 40 enables stable lifting and precise positioning of the cutter 17, and the fourth driving structure 7 enables stable rotation and precise positioning of the rolling rollers 8.

[0039] As can be seen from the above description, when this application is used, the controller of this application uses the first vision sensor 20 to detect the coating quality and the second vision sensor 16 to detect the carbon crystal plate coating quality, thereby realizing the quality monitoring of the entire carbon crystal plate coating process.

[0040] This application also includes a heat recovery structure, which includes a cooling component 4, a preheating component 5 and a blower 6 disposed above the carbon crystal plate conveying structure 1. The heating chamber 3 and the coating chamber 2 are located between the cooling component 4 and the preheating component 5. The cooling component 4 is located on the side of the heating chamber 3 away from the coating chamber 2. The air outlet of the blower 6 is connected to the air inlet of the cooling component 4, and the air outlet of the cooling component 4 is connected to the air inlet of the preheating component 5.

[0041] Both the cooling component 4 and the preheating component 5 include several heat exchange pipes 41. The heat exchange pipes 41 are movably arranged above the carbon crystal plate conveying structure 1. The air inlet ends of two adjacent heat exchange pipes 41 are connected by a first connecting pipe 33, and the air outlet ends of two adjacent heat exchange pipes 41 are connected by a second connecting pipe 42. The heat exchange pipes 41 are in a movably connected state with the first connecting pipe 33 and the second connecting pipe 42. The coated carbon crystal plate can contact the bottom of the heat exchange pipes 41 in the cooling component 4, and the uncoated carbon crystal plate can contact the bottom of the heat exchange pipes 41 in the preheating component 5.

[0042] With the heat recovery structure, when the blower 6 is working, it can blow cold air into the heat exchange tube 41 of the cooling component 4. When the heat exchange tube 41 comes into contact with the coated carbon crystal plate, the cold air exchanges heat with the carbon crystal plate, reducing the temperature of the carbon crystal plate and making it easier for the staff to pick up the parts. The heated cold air enters the preheating component 5 and exchanges heat with the carbon crystal plate to be coated, thereby raising the temperature of the carbon crystal plate and reducing the preheating loss of the carbon crystal plate.

[0043] As can be seen from the above description, when this application is used, it can realize the recovery of heat from the coated carbon crystal plate, which facilitates the removal of parts. At the same time, the recovered heat can be used to raise the temperature of the carbon crystal plate to be preheated, reducing the preheating loss of the carbon crystal plate.

[0044] All electrical components involved in this application are existing technologies. Those skilled in the art can select appropriate models of electrical components according to their needs. No restrictions or elaborations are made here. Those skilled in the art understand their connection methods. With the help of those skilled in the art, all electrical components in this application and their compatible power supplies are connected by wires. According to the actual situation, appropriate controllers are selected to meet control requirements. For specific connections and control sequences, please refer to the description below. The electrical connections between each electrical component are completed in the order of their operation. The detailed connection methods are well-known technologies in the art. The following mainly introduces the working principle and process, and will not describe the electrical control.

[0045] In summary: When using the hot glue coating machine for carbon crystal plate surface coating, the carbon crystal plate to be coated is transported by the carbon crystal plate conveying structure 1. The carbon crystal plate passes through the preheating component 5, the heating chamber 3, the coating chamber 2 and the cooling component 4 in sequence. The air flowing in the preheating component 5 exchanges heat with the carbon crystal plate, causing the surface temperature of the carbon crystal plate to rise. The heating plate 11 set in the heating chamber 3 heats the carbon crystal plate until it is preheated to the set temperature. During the movement of the carbon crystal plate in the heating chamber 3, the first telescopic structure 13 drives the positioning push plate 12 connected to it to position the carbon crystal plate, so that the carbon crystal plate moves to the designated position of the carbon crystal plate conveying structure 1, so that the carbon crystal plate and the coating can be aligned.

[0046] During the movement of the carbon crystal plate, the adhesive used for coating the carbon crystal plate is squeezed out by the pusher roller 38 and dripped onto the coating film. The scraper 21 spreads the adhesive evenly, realizing the coating and adhesive application operation. When the carbon crystal plate moves to the bottom of the coated film, the coating pressure roller 9 presses the coating film and the carbon crystal plate simultaneously to realize the coating operation of the carbon crystal plate. The cutter 17 can be used to cut off the excess coating film. The coated carbon crystal plate comes into contact with the cooling component 4. The cold air flowing in the cooling component 4 exchanges heat with the coated carbon crystal plate, realizing the cooling of the coated carbon crystal plate, which is convenient for removing the part. The heated cold air enters the preheating component 5 to realize the heat recovery and utilization.

[0047] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each structure adopt conventional technical means such as bolt connection that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The materials of each component can be selected according to the requirements and are not limited here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hot-melt adhesive coating machine for coating the surface of a carbon crystal plate, comprising a carbon crystal plate conveying structure (1), characterized in that: A heating chamber (3) and a coating chamber (2) are provided above the carbon crystal plate conveying structure (1), and the heating chamber (3) and the coating chamber (2) are in communication. A coating structure is provided on the side of the coating chamber (2) near the heating chamber (3). The coating structure includes a coating roll fixing structure, an adhesive storage tank (14), a coating structure connected to the liquid outlet of the adhesive storage tank (14), a first vision sensor (20), a support plate (23) provided below the coating structure, a film feeding roller group and a coating pressure roller (9). The fabric structure includes a buffer box (31) and a scraper (21) connected to the outlet end of the adhesive storage tank (14). The bottom of the inner cavity of the buffer box (31) is uniformly provided with adhesive outlet holes (30). The top of the inner cavity of the buffer box (31) is provided with an opening and closing door. The inner cavity of the buffer box (31) is movably connected with a fixed mesh plate (37). The fixed mesh plate (37) is connected to the adhesive storage tank (14) through a second lifting structure (34). The bottom of the fixed mesh plate (37) is uniformly provided with push rollers (38) adapted to the adhesive outlet holes.

2. The hot-melt adhesive coating machine for carbon crystal plate surface coating according to claim 1, characterized in that: The heating cavity (3) is provided with a heating plate (11) and a positioning structure. The positioning structure includes a positioning push plate (12). The positioning push plate (12) is provided on both sides of the bottom of the heating cavity (3). The positioning push plate (12) is connected to the heating cavity (3) through a first telescopic structure (13).

3. The hot-melt adhesive coating machine for carbon crystal plate surface coating according to claim 1, characterized in that: A second vision sensor (16) and a cutting structure are provided on the side of the coating cavity (2) away from the heating cavity (3). The second vision sensor (16) is located on the side of the cutting structure away from the heating cavity (3). The cutting structure includes a cutter (17) and two rolling rollers (8). The rolling rollers (8) are movably connected to the coating cavity (2). The cutter (17) is located between the two rolling rollers (8). The cutter (17) is connected to the coating cavity (2) through a first lifting structure (40). The bottom of the rolling rollers (8) is at the same height as the bottom of the coating rollers (9).

4. The hot adhesive coating machine for carbon crystal plate surface coating according to claim 1, characterized in that: The scraper (21) is located between the buffer box (31) and the first vision sensor (20), and the scraper (21) is located on the side of the buffer box (31) near the heating chamber (3); two adjacent glue outlets (30) are staggered.

5. A hot-melt adhesive coating machine for carbon crystal plate surface coating according to claim 1, characterized in that: It also includes a heat recovery structure, which includes a cooling component (4), a preheating component (5) and a blower (6) disposed above the carbon crystal plate conveying structure (1). The heating chamber (3) and the coating chamber (2) are located between the cooling component (4) and the preheating component (5). The cooling component (4) is located on the side of the heating chamber (3) away from the coating chamber (2). The air outlet of the blower (6) is connected to the air inlet of the cooling component (4), and the air outlet of the cooling component (4) is connected to the air inlet of the preheating component (5).

6. A hot-melt adhesive coating machine for carbon crystal plate surface coating according to claim 5, characterized in that: The cooling component (4) and the preheating component (5) both include several heat exchange pipes (41). The air inlet of two adjacent heat exchange pipes (41) is connected by a first connecting pipe (33), and the air outlet of two adjacent heat exchange pipes (41) is connected by a second connecting pipe (42).

7. A hot-melt adhesive coating machine for carbon crystal plate surface coating according to claim 1, characterized in that: The coating structure also includes a cleaning component, which includes a lower scraper (32) adapted to the bottom of the buffer box (31) and a side scraper (22) adapted to the scraper (21). The lower scraper (32) and the side scraper (22) are connected to the adhesive storage box (14) via a translation structure (29).

Images