A cardboard coating machine

Abstract

This utility model provides a cardboard coating machine, belonging to the field of coating machines. It includes a coating frame, with a coating component slidably mounted on the inner side of the frame for coating cardboard. An adjusting component for adjusting the coating thickness is fixedly mounted on the inner side of the frame, and the adjusting component is located on top of the coating component. A conveying component for conveying cardboard is fixedly connected to one side of the coating frame. This utility model, through its coating component, allows for flexible adjustment of the coating range, adapting to the coating needs of cardboard of different thicknesses. This greatly improves the versatility and applicability of the equipment, reducing the time cost associated with equipment replacement or process adjustments. The collection tank and drip plate effectively collect dripping glue, which can be recycled and reused, reducing production costs and preventing glue pollution of the working environment, thus meeting environmental protection requirements.

Description

Technical Field

[0001] This utility model relates to the field of gluing machines, and more specifically, to a cardboard gluing machine. Background Technology

[0002] A glue applicator, also known as a coating machine, glue scraper, or automatic glue sprayer, is a mechanical device mainly used to apply liquid glue to the surface of textiles, cardboard boxes, or leather.

[0003] A search revealed that Chinese Patent Publication No. CN214682581U discloses a "cardboard coating machine," which includes a conveying device for conveying cardboard, a coating device connected to the conveying device, and a coating device for coating the cardboard with glue. The coating device includes a coating mechanism connected to the conveying device, and a glue-blocking mechanism connected to the coating mechanism to reduce glue waste. The glue-blocking mechanism includes a drive assembly and a glue-blocking assembly. The drive assembly is connected to the coating mechanism, and the glue-blocking assembly is connected to the drive assembly. The coating mechanism includes two support plates, two coating rollers rotatably connected between the two support plates, and a base plate fixedly connected between the two support plates. The base plate has an arc-shaped cross-section and is located below the two coating rollers. The glue-blocking assembly includes two glue-blocking plates, both of which are connected to the drive assembly and abut against the two coating rollers. This application has the effect of reducing glue flow from both ends of the coating rollers and reducing glue waste, but it still has the following drawbacks: (1) When applying glue, the gap between the glue roller and the paperboard cannot be adjusted according to different paperboard thicknesses. When facing paperboards of different thicknesses, the glue application effect is affected, and the glue residue on the outside is easy to cause waste.

[0004] (2) In the actual operation of the cardboard coating machine, when the coating roller applies glue to the surface of the cardboard, it is not possible to flexibly and accurately adjust the thickness parameter of the glue according to the production process standards of different cardboards.

[0005] Therefore, a cardboard gluing machine is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a cardboard coating machine to address the problem that the gap between the coating roller and the cardboard cannot be adjusted according to different cardboard thicknesses, which affects the coating effect when dealing with cardboard of different thicknesses.

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution: The present invention is as follows: a cardboard coating machine, including a coating frame, a coating component for coating cardboard is slidably installed on the inner side of the coating frame, an adjusting component for adjusting the coating thickness is fixedly installed on the inner side of the coating frame, and the adjusting component is located on the top of the coating component; a conveying component for conveying cardboard is fixedly connected to one side of the coating frame. The adhesive application assembly includes a first motor fixedly connected to the top of the adhesive application frame. A first lead screw is installed at the output end of the first motor. The first lead screw is located in a groove of the adhesive application frame and a slider is threaded onto the first lead screw. A second motor is fixedly connected to one side of the slider. A rotating shaft is installed at the output end of the second motor. An adhesive application roller is provided on the outside of the rotating shaft and is located on the inside of the adhesive application frame. A collection trough for collecting adhesive liquid is bolted to the bottom of the adhesive application frame. A leakage plate is embedded in the inside of the collection trough and is located at the bottom of the adhesive application roller.

[0008] As a preferred technical solution of this utility model, the adjustment component includes a third motor bolted to one side of the glue applicator, a second lead screw is installed at the output end of the third motor, an electric push rod is slidably installed on the second lead screw, and a glue storage box is fixedly connected to the other end of the electric push rod. A glue scraper is provided through the bottom of the glue storage box and the glue scraper is located at the top of the glue applicator roller.

[0009] As a preferred technical solution of this utility model, the conveying assembly includes a support plate bolted to one side of the collection tank, a fourth motor fixedly installed on one side of the support plate, a first rotating roller installed at the output end of the fourth motor, a second rotating roller rotatably installed on the inner side of the support plate, a conveyor belt connecting the first rotating roller and the second rotating roller, and the first rotating roller and the second rotating roller being tensioned together by the belt.

[0010] As a preferred embodiment of this utility model, a rectangular plate is fixedly installed on the top of the support plate, a servo motor is fixedly installed on the top of the rectangular plate, and a screw is installed at the output end of the servo motor.

[0011] As a preferred technical solution of this utility model, the screw is slidably connected with a pressure bar and two sets of pressure bars are symmetrically arranged. A pressure plate is slidably installed inside the pressure bar through a pressure block. The pressure plate is provided with balls and multiple sets of balls are evenly distributed.

[0012] As a preferred technical solution of this utility model, a circulation pump is fixedly installed on one side of the collection tank. The inlet of the circulation pump passes through one side of the collection tank via a pipe, and the outlet of the circulation pump passes through one side of the glue storage box via a pipe.

[0013] As a preferred technical solution of this utility model, the rectangular plates are arranged symmetrically at the top four corners of the support plate in four groups, and the pressure plates are evenly distributed at the top of the conveyor belt in five groups.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The glue application components allow for flexible adjustment of the glue application range, adapting to the glue application needs of cardboard of different thicknesses. This greatly improves the versatility and applicability of the equipment, reducing the time cost caused by equipment replacement or process adjustment. The collection tank and drip plate effectively collect the dripping glue, which can be recycled and reused, reducing production costs and preventing glue from polluting the working environment, thus meeting environmental protection requirements. 2. By adjusting the height of the glue storage box using the set adjustment components, the distance between the glue scraper and the glue coating roller can be flexibly controlled. This allows for precise control of the glue thickness on the glue coating roller according to different glue coating needs, improving the uniformity and accuracy of glue coating and ensuring the glue coating quality of the cardboard. Furthermore, the glue scraper scrapes off excess glue and returns it to the collection tank, realizing the recycling of glue, avoiding glue waste, and reducing production costs. Attached Figure Description

[0015] Figure 1 One of the three-dimensional structural schematic diagrams of the cardboard coating machine provided by this utility model; Figure 2 The second three-dimensional structural schematic diagram of the cardboard coating machine provided by this utility model; Figure 3 A schematic diagram of the coating component structure of the cardboard coating machine provided by this utility model; Figure 4 A schematic diagram of the adjustment component structure of the cardboard coating machine provided by this utility model; Figure 5 A schematic diagram of the conveying component structure of the cardboard coating machine provided by this utility model.

[0016] The diagram shows: 1. Glue applicator; 2. Glue applicator assembly; 201. First motor; 202. First lead screw; 203. Slider; 204. Second motor; 205. Rotating shaft; 206. Glue applicator roller; 207. Collection tank; 208. Drain plate; 3. Adjustment assembly; 301. Third motor; 302. Second lead screw; 303. Electric push rod; 304. Glue storage box; 305. Glue scraper; 4. Conveying assembly; 401. Support plate; 402. Fourth motor; 403. First rotating roller; 404. Second rotating roller; 405. Conveyor belt; 5. Rectangular plate; 6. Servo motor; 7. Screw; 8. Pressure bar; 9. Pressure plate; 10. Ball bearing; 11. Circulation pump. Detailed Implementation

[0017] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0018] Example: Figure 1 and Figures 3-5 As shown, this embodiment proposes a cardboard coating machine, including a coating frame 1, a coating component 2 for coating cardboard is slidably installed on the inner side of the coating frame 1, an adjustment component 3 for adjusting the coating thickness is fixedly installed on the inner side of the coating frame 1, and the adjustment component 3 is located on the top of the coating component 2. A conveying component 4 for conveying cardboard is fixedly connected to one side of the coating frame 1. The glue application assembly 2 includes a first motor 201 fixedly connected to the top of the glue application frame 1. A first lead screw 202 is installed at the output end of the first motor 201. The first lead screw 202 is located in the groove of the glue application frame 1 and a slider 203 is threaded onto the first lead screw 202. A second motor 204 is fixedly connected to one side of the slider 203. A rotating shaft 205 is installed at the output end of the second motor 204. A glue application roller 206 is provided on the outside of the rotating shaft 205 and is located on the inside of the glue application frame 1. A collection tank 207 for collecting glue liquid is bolted to the bottom of the glue application frame 1. A leakage plate 208 is embedded in the inside of the collection tank 207 and is located at the bottom of the glue application roller 206. During operation, the first motor 201 starts, driving the first lead screw 202 to rotate. Since the first lead screw 202 is threadedly connected to the slider 203, the slider 203 will move linearly along the groove of the coating frame 1 on the first lead screw 202, thereby driving the second motor 204 and the coating roller 206 to slide inside the coating frame 1, realizing the coating operation on cardboard of different thicknesses. After the second motor 204 starts, it drives the rotating shaft 205 to rotate, which in turn causes the coating roller 206 to rotate. During the rotation, the coating roller 206 coats the cardboard that passes by. The drip plate 208 located at the bottom of the coating roller 206 can collect the glue dripping during the coating process into the collection tank 207, avoiding glue from flowing everywhere and causing waste and pollution.

[0019] like Figure 1 , Figure 3 and Figure 4As shown, the adjustment assembly 3 includes a third motor 301 bolted to one side of the glue applicator 1. A second lead screw 302 is installed at the output end of the third motor 301. An electric push rod 303 is slidably installed on the second lead screw 302. The other end of the electric push rod 303 is fixedly connected to a glue storage box 304. A glue scraper 305 is provided through the bottom of the glue storage box 304 and is located at the top of the glue applicator roller 206. During operation, the third motor 301 starts, driving the second lead screw 302 to rotate. The electric push rod 303 slides on the second lead screw 302, thereby moving the glue storage box 304. The glue scraper 305 at the bottom of the glue storage box 304 also moves synchronously with the movement of the glue storage box 304. By controlling the extension and retraction of the electric push rod 303, the height of the glue storage box 304 can be adjusted, thereby precisely controlling the distance between the glue scraper 305 and the glue coating roller 206. When the glue coating roller 206 rotates and applies glue to the cardboard, the glue scraper 305 can effectively scrape off excess glue from the glue coating roller 206. If it is necessary to adjust the glue coating thickness, it is only necessary to finely adjust the distance between the glue scraper 305 and the glue coating roller 206.

[0020] like Figure 3 and Figure 5 As shown, the conveying assembly 4 includes a support plate 401 bolted to one side of the collection trough 207. A fourth motor 402 is fixedly installed on one side of the support plate 401. A first rotating roller 403 is fitted to the output end of the fourth motor 402. A second rotating roller 404 is rotatably installed on the inner side of the support plate 401. A conveyor belt 405 connects the first rotating roller 403 and the second rotating roller 404, and the first rotating roller 403 and the second rotating roller 404 are tensioned together by the belt. The fourth motor 402 serves as a power source, driving the first rotating roller 403 to rotate. Through belt transmission, the power is transmitted to the second rotating roller 404, causing the conveyor belt 405, which is tensioned between the two rollers, to rotate continuously. The cardboard to be coated is placed on the conveyor belt 405 and passes through the coating station at a uniform speed, completing the automatic conveying.

[0021] like Figure 2 and Figure 5 As shown, a rectangular plate 5 is fixedly mounted on the top of the support plate 401, and a servo motor 6 is fixedly mounted on the top of the rectangular plate 5. A screw 7 is installed at the output end of the servo motor 6. The servo motor 6 receives control signals and precisely drives the screw 7 to rotate. The thread on the screw 7 converts the rotational motion into linear motion, thereby driving the component meshing with the screw 7 to move precisely.

[0022] like Figure 2 and Figure 5As shown, a pressure strip 8 is slidably connected to the screw 7, and two sets of pressure strips 8 are symmetrically arranged. A pressure plate 9 is slidably installed inside the pressure strip 8 via a pressure block. The pressure plate 9 is equipped with multiple sets of ball bearings 10 evenly distributed. The pressure strip 8 slides through a thread that matches the screw 7. By controlling the downward pressure of the pressure strip 8, the distance between the pressure plate 9 and the cardboard is adjusted, so that the ball bearings 10 at the bottom of the pressure plate 9 directly contact the surface of the cardboard. While pressing the cardboard, the ball bearings 10 allow the cardboard to be smoothly dragged forward by the conveyor belt 405 under the pressed state, thereby achieving an organic combination of sliding and pressing, effectively preventing the cardboard from bending during conveying and affecting the glue coating effect.

[0023] like Figure 1 , Figure 3 and Figure 4 As shown, a circulation pump 11 is fixedly installed on one side of the collection tank 207. The inlet of the circulation pump 11 is connected to one side of the collection tank 207 through a pipe, and the outlet of the circulation pump 11 is connected to one side of the glue storage box 304 through a pipe. After the circulation pump 11 is started, its inlet draws the recovered glue from the bottom of the collection tank 207 through the pipe, and then pumps the glue back into the glue storage box 304 through the outlet and the pipe, forming a closed glue circulation loop, which greatly reduces glue waste.

[0024] like Figure 2 and Figure 5 As shown, four sets of rectangular plates 5 are symmetrically arranged at the top four corners of the support plate 401, and five sets of pressure plates 9 are evenly distributed at the top of the conveyor belt 405. The pressure plates 9 ensure that pressure is applied evenly and continuously throughout the entire paperboard conveying path. Depending on the size of different paperboards, the pressure plates 9 can be slidably adjusted to ensure precise positioning along the limiting grooves on the pressure strips 8.

[0025] Working Principle: This utility model provides a cardboard coating machine. The specific operating steps are as follows: Step 1: The fourth motor 402 serves as the power source, driving the first rotating roller 403 to rotate. Through belt transmission, the power is transmitted to the second rotating roller 404, causing the conveyor belt 405, tensioned between the two rollers, to rotate continuously. The cardboard to be coated is placed on the conveyor belt 405 and passes through the coating station at a uniform speed, completing the automatic conveying. The pressure bar 8 slides through a thread matching the screw 7. By controlling the downward pressure of the pressure bar 8, the distance between the pressure plate 9 and the cardboard is adjusted, allowing the pressure to be adjusted. The ball bearings 10 at the bottom of plate 9 directly contact the surface of the cardboard. While pressing the cardboard, the ball bearings 10 allow the cardboard to be smoothly dragged forward by the conveyor belt 405 under pressure, thus achieving an organic combination of sliding and pressing, effectively preventing the cardboard from bending during conveying and affecting the glue coating effect; Step 2: The first motor 201 starts, driving the first lead screw 202 to rotate. Since the first lead screw 202 is threadedly connected to the slider 203, the slider 203 will move linearly along the groove of the glue coating frame 1 on the first lead screw 202, thereby driving the second motor 204 and the glue coating roller 20 6. Slides inside the coating rack 1 to apply glue to cardboard of different thicknesses. After the second motor 204 starts, it drives the rotating shaft 205 to rotate, which in turn causes the coating roller 206 to rotate. The coating roller 206 applies glue to the cardboard it passes through during rotation. The drip plate 208 located at the bottom of the coating roller 206 can collect the glue dripping during the coating process into the collection tank 207, preventing the glue from flowing everywhere and causing waste and pollution. Step 3: The third motor 301 starts and drives the second lead screw 302 to rotate. The electric push rod 303 then rotates on the second lead screw 302. The glue storage box 304 moves by sliding on the 02, and the glue scraper 305 at the bottom of the glue storage box 304 also moves synchronously with the movement of the glue storage box 304. By controlling the extension and retraction of the electric push rod 303, the height of the glue storage box 304 can be adjusted, thereby precisely controlling the distance between the glue scraper 305 and the glue coating roller 206. When the glue coating roller 206 rotates and applies glue to the cardboard, the glue scraper 305 can effectively scrape off the excess glue on the glue coating roller 206. If it is necessary to adjust the glue coating thickness, it is only necessary to finely adjust the distance between the glue scraper 305 and the glue coating roller 206.

[0026] All technical features in this embodiment can be freely combined according to actual needs.

[0027] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A cardboard coating machine, comprising a coating rack (1), characterized in that, The inner side of the coating rack (1) is slidably fitted with a coating assembly (2) for coating paperboard. The inner side of the coating rack (1) is fixedly fitted with an adjustment assembly (3) for adjusting the coating thickness. The adjustment assembly (3) is located on the top of the coating assembly (2). A conveying assembly (4) for conveying paperboard is fixedly connected to one side of the coating rack (1). The glue application assembly (2) includes a first motor (201) fixedly connected to the top of the glue application frame (1). The output end of the first motor (201) is fitted with a first lead screw (202). The first lead screw (202) is located in the groove of the glue application frame (1) and a slider (203) is threaded onto the first lead screw (202). A second motor (204) is fixedly connected to one side of the slider (203). A rotating shaft (205) is fitted to the output end of the second motor (204). A glue application roller (206) is provided on the outside of the rotating shaft (205) and the glue application roller (206) is located on the inside of the glue application frame (1). A collection trough (207) for collecting glue liquid is bolted to the bottom of the glue application frame (1). A drain plate (208) is embedded in the inside of the collection trough (207) and the drain plate (208) is located at the bottom of the glue application roller (206).

2. The cardboard coating machine according to claim 1, characterized in that, The adjustment assembly (3) includes a third motor (301) bolted to one side of the glue applicator (1). A second lead screw (302) is installed at the output end of the third motor (301). An electric push rod (303) is slidably installed on the second lead screw (302). A glue storage box (304) is fixedly connected to the other end of the electric push rod (303). A glue scraper (305) is provided through the bottom of the glue storage box (304) and the glue scraper (305) is located at the top of the glue applicator roller (206).

3. A cardboard coating machine according to claim 1, characterized in that, The conveying assembly (4) includes a support plate (401) bolted to one side of the collection tank (207). A fourth motor (402) is fixedly installed on one side of the support plate (401). A first rotating roller (403) is installed at the output end of the fourth motor (402). A second rotating roller (404) is rotatably installed on the inner side of the support plate (401). A conveyor belt (405) is connected between the first rotating roller (403) and the second rotating roller (404), and the first rotating roller (403) and the second rotating roller (404) are connected by belt tensioning.

4. A cardboard coating machine according to claim 3, characterized in that, A rectangular plate (5) is fixedly installed on the top of the support plate (401), and a servo motor (6) is fixedly installed on the top of the rectangular plate (5). A screw (7) is installed at the output end of the servo motor (6).

5. A cardboard coating machine according to claim 4, characterized in that, The screw (7) is slidably connected to a pressure bar (8), and the pressure bar (8) is arranged in two symmetrical sets. The pressure bar (8) is slidably installed with a pressure plate (9) through a pressure block. The pressure plate (9) is provided with balls (10), and multiple sets of balls (10) are evenly distributed.

6. A cardboard coating machine according to claim 2, characterized in that, A circulation pump (11) is fixedly installed on one side of the collection tank (207). The inlet of the circulation pump (11) is connected to one side of the collection tank (207) through a pipe, and the outlet of the circulation pump (11) is connected to one side of the glue storage box (304) through a pipe.

7. A cardboard coating machine according to claim 5, characterized in that, The rectangular plates (5) are arranged symmetrically at the top four corners of the support plate (401) in four groups, and the pressure plates (9) are evenly distributed at the top of the conveyor belt (405) in five groups.

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