A knife-adjustable glue coating device for a packaging plate

Abstract

The utility model provides a kind of adjustable packing plate surface gluing device of scraper, it is related to packing plate processing technical field, including: cabinet body, two side plates are fixedly connected in cabinet body top, two side plates are fixedly connected with intermediate plate between, intermediate plate top is equipped with scraping glue plate, scraping glue plate opposite two ends are fixedly connected with side scraping glue plate, cabinet body top is fixedly installed with gluing device, and intermediate plate opposite two sides are equipped with conveyor belt respectively;Through the adjustment mechanism set, the gap between scraping glue plate and base material can be adjusted, so as to flexibly control the thickness of glue layer according to different process requirements, significantly improve the adaptability and production flexibility of equipment, secondly, through the collection mechanism set, the excess glue removed by scraping glue plate can be effectively recycled, to prevent glue flow to conveyor belt, avoid causing glue waste, conveyor belt pollution and packing plate sticking problems, ensure the continuous and stable operation of production line, reduce material loss and maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of packaging board processing technology, specifically a packaging board surface coating device with an adjustable scraper. Background Technology

[0002] In the packaging manufacturing industry, packaging substrates such as cardboard, wood, and fiberboard often need to be coated with adhesive to achieve processes such as interlayer lamination, box gluing, film bonding, or functional coating. The quality of adhesive coating directly affects the bonding strength, appearance flatness, and production cost of the product. Therefore, it is crucial to achieve a coating process with uniform adhesive layer thickness and precise control of coating amount.

[0003] Due to the different packaging substrates, adhesives of varying viscosities, and diverse process requirements (such as thin coating, thick coating, or high-speed coating), precise adjustment of the gap between the doctor blade and the coating roller is necessary to control the adhesive layer thickness. However, traditional fixed or coarse-adjustment doctor blade structures have low adjustment precision and poor adaptability, making it difficult to meet the actual needs of multi-variety, small-batch, and high-precision production. At the same time, excess adhesive scraped off by the doctor blade often flows freely along both sides of the doctor blade without effective guidance or collection measures, causing adhesive to drip or overflow onto the conveyor belt surface. This not only wastes adhesive and pollutes the environment but also makes it easier for adhesive to adhere to the bottom of the packaging board or the conveyor belt, causing problems such as packaging board adhesion, conveyor jamming, and product surface contamination, seriously affecting production continuity and product quality. Utility Model Content

[0004] The purpose of this application is to provide a device for applying adhesive to the surface of a packaging board with an adjustable scraper, so as to solve the technical problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted in this application is: to provide a coating device for packaging board surface with adjustable scraper, comprising: a cabinet, two side plates fixedly connected to the top of the cabinet, a middle plate fixedly connected between the two side plates, a scraper plate provided above the middle plate, side scraper plates fixedly connected to opposite ends of the scraper plate, a coating device fixedly installed on the top of the cabinet, and conveyor belts provided on opposite sides of the middle plate;

[0006] An adjustment mechanism is provided on the top of the cabinet and is used to adjust the height of the scraper. The adjustment mechanism includes: a gantry frame, a screw sleeve, a screw rod, a handwheel, a moving rod, and a mounting plate.

[0007] A collection mechanism, located on the cabinet, is used to collect excess glue. The collection mechanism includes a collection box, a funnel, a collection bucket, a bucket lid, and a T-connector.

[0008] Furthermore, a gantry frame is fixedly installed on the top of the cabinet, and a screw sleeve is provided on the top of the gantry frame. A screw rod is threadedly connected inside the screw sleeve. A handwheel is fixedly installed on the top of the screw rod, and a moving rod is rotatably connected to the bottom of the screw rod. An installation plate is fixedly connected to the bottom of the moving rod, and a scraper is fixedly installed on the front side of the installation plate.

[0009] Furthermore, the intermediate plate is provided with collection boxes at opposite ends, and funnels are fixedly connected to the inner walls of the collection boxes. A collection bucket is provided inside the cabinet, and a bucket lid is provided on the top of the collection bucket. A three-way pipe is fixedly installed on the top of the bucket lid, and the two ends of the three-way pipe are respectively connected to the discharge ports of the two funnels.

[0010] Furthermore, guide blocks are fixedly connected to the opposite ends of the moving rod, and guide grooves are opened on opposite sides of the gantry frame, with the guide blocks extending into the guide groove on the adjacent side.

[0011] Furthermore, a collection groove is provided on the top of the intermediate plate. The collection groove is arranged in a V-shape, and one end of the tee pipe is connected to the collection groove.

[0012] Furthermore, placement strips are fixedly connected to the inner walls of opposite sides of the collection box, and a filter screen is provided between the two placement strips.

[0013] The beneficial effects of this utility model are:

[0014] The advantage of this utility model is that, through the adjustment mechanism, the gap between the scraper and the substrate can be adjusted, thereby flexibly controlling the adhesive layer thickness according to different process requirements, significantly improving the adaptability of the equipment and production flexibility.

[0015] Secondly, the collection mechanism can effectively recover excess glue scraped off by the scraper, preventing glue from flowing onto the conveyor belt and avoiding problems such as glue waste, conveyor belt contamination, and packaging board adhesion. This ensures the continuous and stable operation of the production line and reduces material consumption and maintenance costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0019] Figure 3 This is a side sectional view of the overall structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the scraper structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the gantry structure of this utility model.

[0022] Figure 6 This is a schematic diagram of the collection box structure of this utility model.

[0023] Figure 7 For the present utility model Figure 2 Enlarged view of point A in the middle.

[0024] The following are the labeling elements in the figure:

[0025] 1. Cabinet body; 11. Side panel; 12. Middle panel; 13. Glue scraper; 14. Side glue scraper; 15. Glue application device; 16. Conveyor belt; 2. Gantry frame; 21. Screw sleeve; 22. Screw; 23. Handwheel; 24. Moving rod; 25. Mounting plate; 26. Guide block; 27. Guide groove; 3. Collection box; 31. Funnel; 32. Collection bucket; 33. Bucket lid; 34. T-pipe; 35. Collection trough; 36. Placement strip; 37. Filter screen. Detailed Implementation

[0026] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0027] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0028] As attached Figures 1 to 7 The device for applying adhesive to the surface of a packaging board with an adjustable scraper includes: a cabinet 1, two side plates 11 fixedly connected to the top of the cabinet 1, a middle plate 12 fixedly connected between the two side plates 11, a scraper 13 above the middle plate 12, side scraper plates 14 fixedly connected to opposite ends of the scraper 13, an adhesive application device 15 fixedly installed on the top of the cabinet 1, and conveyor belts 16 on opposite sides of the middle plate 12; an adjustment mechanism located on the top of the cabinet 1 for adjusting the height of the scraper 13; and a collection mechanism located on the cabinet 1 for collecting excess adhesive.

[0029] The packaging board is placed on the conveyor belt 16 on one side of the glue application device 15. The conveyor belt 16 moves the packaging board to the other side. The glue application device 15 applies glue to the packaging board. The glue is then spread evenly by the glue scraper 13. The height of the glue scraper 13 can be adjusted by the adjustment mechanism, which can adjust the thickness of the glue. The excess glue scraped off is collected by the collection mechanism.

[0030] The adjustment mechanism includes: a gantry frame 2, a screw sleeve 21, a screw rod 22, a handwheel 23, a moving rod 24, and a mounting plate 25. The gantry frame 2 is fixedly installed on the top of the cabinet 1. The top of the gantry frame 2 is provided with a screw sleeve 21. The screw sleeve 21 is threadedly connected to the screw rod 22. The top of the screw rod 22 is fixedly installed with a handwheel 23. The bottom of the screw rod 22 is rotatably connected to a moving rod 24. The bottom of the moving rod 24 is fixedly connected to a mounting plate 25. A scraper plate 13 is fixedly installed on the front side of the mounting plate 25. Guide blocks 26 are fixedly connected to opposite ends of the moving rod 24. Guide grooves 27 are opened on opposite sides of the gantry frame 2. The guide blocks 26 extend into the guide groove 27 on the adjacent side.

[0031] Specifically: When adjusting the scraper 13, the screw 22 is rotated by manually turning the handwheel 23. The screw 22 rotates and engages with the screw sleeve 21, thereby driving the screw 22 to move. The bottom end of the screw 22 rotates with the moving rod 24, and the screw 22 drives the moving rod 24 to move. The movement of the moving rod 24 causes the guide blocks 26 at both ends to move along the inside of the guide groove 27, thereby guiding the moving rod 24 so that it can only move along the inside of the guide groove 27. When the moving rod 24 moves, it drives the scraper 13 to move. The direction of rotation of the handwheel 23 is controlled to control the upward or downward movement of the moving rod 24.

[0032] The collection mechanism includes: a collection box 3, a funnel 31, a collection bucket 32, a bucket lid 33, and a three-way pipe 34. Collection boxes 3 are respectively provided at opposite ends of the middle plate 12. Funnels 31 are fixedly connected to the inner walls of the collection boxes 3. A collection bucket 32 ​​is provided inside the cabinet 1. A bucket lid 33 is provided on the top of the collection bucket 32. A three-way pipe 34 is fixedly installed on the top of the bucket lid 33. The two ends of the three-way pipe 34 are respectively connected to the discharge ports of the two funnels 31. A collection trough 35 is provided on the top of the middle plate 12. The collection trough 35 is set in a V-shape. One end of the three-way pipe 34 is connected to the collection trough 35. Placement strips 36 are fixedly connected to the inner walls of opposite sides of the collection box 3. A filter screen 37 is provided between the two placement strips 36.

[0033] Specifically: After the packaging board passes under the scraper 13, the scraper 13 can spread the glue evenly. Excess glue moves to both ends of the scraper 13 and flows into the collection box 3. The filter screen 37 can filter the glue, filtering out the debris in the glue, causing the glue to fall into the funnel 31. The funnel 31 collects the glue to the outlet. The glue flows into the collection bucket 32 ​​through the three-way pipe 34. The glue in the middle of the scraper 13 falls into the collection trough 35. The collection trough 35 collects the glue to the discharge port. The discharge port is also equipped with a filter screen 37 to filter impurities. The glue is collected into the collection bucket 32 ​​through the three-way pipe 34.

[0034] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0035] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for applying adhesive to the surface of a packaging board with an adjustable scraper, characterized in that, include: The cabinet (1) has two side panels (11) fixedly connected to the top of the cabinet (1), and a middle plate (12) fixedly connected between the two side panels (11). A scraper (13) is provided above the middle plate (12), and side scrapers (14) are fixedly connected to the opposite ends of the scraper (13). A glue applicator (15) is fixedly installed on the top of the cabinet (1), and conveyor belts (16) are provided on the opposite sides of the middle plate (12). An adjustment mechanism is provided on the top of the cabinet (1) and is used to adjust the height of the scraper (13). The adjustment mechanism includes: a gantry frame (2), a screw sleeve (21), a screw (22), a handwheel (23), a moving rod (24), and a mounting plate (25). The collection mechanism is located on the cabinet (1) and is used to collect excess glue. The collection mechanism includes: a collection box (3), a funnel (31), a collection bucket (32), a bucket lid (33), and a three-way pipe (34).

2. The adhesive coating device for packaging board surface with adjustable scraper according to claim 1, characterized in that, A gantry frame (2) is fixedly installed on the top of the cabinet (1). A screw sleeve (21) is provided on the top of the gantry frame (2). A screw rod (22) is threaded inside the screw sleeve (21). A handwheel (23) is fixedly installed on the top of the screw rod (22). A moving rod (24) is rotatably connected to the bottom of the screw rod (22). An installation plate (25) is fixedly connected to the bottom of the moving rod (24). A scraper (13) is fixedly installed on the front side of the installation plate (25).

3. The adhesive coating device for packaging board surface with adjustable scraper according to claim 1, characterized in that, The middle plate (12) is provided with collection boxes (3) at opposite ends. The inner walls of the collection boxes (3) are fixedly connected with funnels (31). The cabinet (1) is provided with a collection bucket (32). The top of the collection bucket (32) is provided with a bucket cover (33). A three-way pipe (34) is fixedly installed on the top of the bucket cover (33). The two ends of the three-way pipe (34) are respectively connected to the discharge ports of the two funnels (31).

4. The adhesive coating device for packaging board surface with adjustable scraper according to claim 2, characterized in that, The moving rod (24) is fixedly connected to guide blocks (26) at its two ends respectively, and the gantry (2) is provided with guide grooves (27) on its two sides respectively. The guide blocks (26) extend into the guide grooves (27) on the adjacent side.

5. The adhesive coating device for packaging board surface with adjustable scraper according to claim 3, characterized in that, The top of the intermediate plate (12) is provided with a collection groove (35), which is arranged in a V-shape. One end of the three-way pipe (34) is connected to the collection groove (35).

6. The adhesive coating device for packaging board surface with adjustable scraper according to claim 3, characterized in that, The collection box (3) has placement strips (36) fixedly connected to the inner walls on both sides, and a filter screen (37) is provided between the two placement strips (36).

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