Corrugated board gluing and smearing device

Abstract

The utility model discloses a corrugated board gluing and smearing device which comprises a rack, a glue conveying assembly used for smearing glue on a corrugated board is arranged on one side of the rack, the glue conveying assembly comprises a glue containing box assembled on one side of the rack and a glue supply pump communicated with the bottom of an inner cavity of the glue containing box through a glue suction pipe, and the glue supply pump is connected with a square pipe through a glue outlet pipe. The square pipe communicates with the top of the inner cavity of the glue box; a first cover plate is installed at an opening in the top of the glue containing box, a paste barrel disc extending out of the opening of the first cover plate is arranged in the glue containing box, a scraper is slidably connected to the top of the square pipe and slides in the direction close to or away from the paste barrel disc, a control assembly for controlling the scraper to slide is arranged on the square pipe, and glue penetrates through a glue scraping gap between the paste barrel disc and the scraper. According to the corrugated board gluing mechanism, through the glue conveying assembly and the scraping plate, the problem that in the using process of the gluing mechanism, glue smeared on the lower edges of corrugated boards is gradually reduced, and the adhesion effect between the corrugated boards is affected is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cardboard processing, in particular to a gluing and coating device for corrugated cardboard. Background Art

[0002] A box gluer is a device that automatically applies glue to cardboard. It has a wide working range, comprehensive working performance, high working efficiency, good gluing quality and other advantages. It is the preferred machine equipment for post-processing procedures of paper product manufacturers. Since corrugated boxes have many advantages such as environmental protection, light weight and easy transportation, they are suitable for packaging of various items. Therefore, box gluers are usually used to process corrugated cardboard.

[0003] The gluing mechanism in the existing box gluer generally includes a glue cylinder for placing glue and a glue wheel rotatably arranged in the glue cylinder. When in use, when the corrugated cardboard passes over the glue wheel, the glue is transferred to the lower edge of the corrugated cardboard for smearing. However, during the rotation of the glue wheel, the glue adhering to the glue wheel is easy to separate from the glue wheel under the action of centrifugal force. In addition, the glue in the glue cylinder will gradually decrease during use, the area of ​​the glue adhering to the glue wheel will gradually decrease, and the area of ​​the glue adhering to the glue wheel will gradually increase under the action of centrifugal force. This will easily lead to the glue smeared on the lower edge of the corrugated cardboard during use of the gluing mechanism. The glue affects the adhesion effect between the corrugated cardboards. Summary of the invention

[0004] The utility model aims to provide a corrugated board gluing device to solve the problem that the glue applied to the lower edge of the corrugated board gradually decreases during the use of the gluing mechanism, thus affecting the adhesion effect between the corrugated board.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A corrugated cardboard gluing and applying device, comprising:

[0007] A frame, one side of the frame is provided with a glue transfer component for applying glue to the corrugated cardboard, the glue transfer component includes a glue container box mounted on one side of the frame and a glue supply pump connected to the bottom of the inner cavity of the glue container box through a glue suction tube, the glue supply pump is connected to a square tube through a glue outlet tube, and the square tube is connected to the top of the inner cavity of the glue container box;

[0008] A first cover plate is installed at the top opening of the glue container box, a glue drum disc extending out of the opening of the first cover plate is arranged in the glue container box, a scraper is slidably connected to the top of the square tube, the scraper slides in the direction approaching or away from the glue drum disc, a control component for controlling the sliding of the scraper is arranged on the square tube, the glue passes through the glue scraping gap between the glue drum disc and the scraper, adheres to the side wall of the outer wheel of the glue drum disc, and is transmitted to the opening of the first cover plate to be smeared on the corrugated cardboard.

[0009] As a further description of the above technical solution:

[0010] A notch is provided on the side of the scraper close to the glue drum disc, and the side walls of the glue drum disc are in contact with the side walls of the notch. A scraping gap is provided between the inner wall of the notch away from the glue drum disc and the side wall of the outer wheel of the glue drum disc, and the top wall of the scraper is in contact with the bottom wall of the first cover plate.

[0011] As a further description of the above technical solution:

[0012] A glue outlet gap is arranged between the pipe mouth of the square tube and the top side wall of the glue drum disc, baffles are installed on both longitudinal sides of the pipe mouth of the square tube, the two baffles are respectively attached to the side walls on both sides of the glue drum disc, the bottom wall of the scraper is attached to the top wall of the baffle, a motor is installed on the outer wall of the glue box, the output end of the motor passes through the side wall on one side of the sol box, and is connected to the glue drum disc.

[0013] As a further description of the above technical solution:

[0014] The control component includes a rack and a gear installed in the glue container. The rack is slidably installed on the top of the square tube through a slide rail and meshes with the gear. The end of the rack close to the glue drum disc is connected to the scraper.

[0015] As a further description of the above technical solution:

[0016] A rotating shaft is installed in the plastic container, one end of which is connected to the gear, and the other end passes through the first cover plate and is connected to a knob. A bolt is screwed onto the knob through a thread, and the screw portion of the bolt passes through the knob and abuts against the top of the first cover plate.

[0017] As a further description of the above technical solution:

[0018] A pressing roller and two conveying shafts are arranged on the frame. The pressing roller is hinged to the top of the frame, and conveying belts are sleeved on the two conveying shafts.

[0019] As a further description of the above technical solution:

[0020] The frame is equipped with a connecting block, a connecting rod is connected to one side of the connecting block close to the glue drum disc, and a pressing wheel is rotatably connected to one end of the connecting rod close to the glue drum disc, and a gluing gap is formed between the pressing wheel and the glue drum disc.

[0021] As a further description of the above technical solution:

[0022] A second cover plate is also installed at the top opening of the glue container box. The second cover plate and the first cover plate are respectively arranged on the side away from and close to the frame, and the side wall of the first cover plate is attached to the side wall of the second cover plate.

[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0024] 1. In the utility model, by starting the glue supply pump, the glue at the bottom of the glue box is transmitted to the glue outlet gap between the glue drum disc and the square tube through the glue suction tube, the glue supply pump, the glue outlet tube, and the square tube, and flows onto the glue drum disc; the glue then passes through the glue scraping gap between the glue drum disc and the scraper, so that the thickness of the glue transmitted to the opening of the first cover plate is uniform, and the glue transmitted to the opening of the first cover plate will be transferred to the lower edge of the corrugated cardboard for smearing, and the smearing thickness is uniform, and during long-term use, the smearing thickness of the glue will not change; the problem that during the use of the gluing mechanism, the glue smeared on the lower edge of the corrugated cardboard gradually decreases, affecting the adhesion effect between the corrugated cardboards is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A front structural schematic diagram according to an embodiment of the utility model is shown;

[0026] Figure 2 The embodiment provided according to the utility model is shown Figure 1 The structural diagram of the enlarged part A in the middle;

[0027] Figure 3 A schematic diagram of the structure after the frame is removed according to an embodiment of the utility model is shown;

[0028] Figure 4 A schematic diagram of the structure of a cross-section of a glue container provided in an embodiment of the utility model is shown;

[0029] Figure 5 The embodiment provided according to the utility model is shown Figure 4 The schematic diagram of the structure after the enlargement of part B in the middle;

[0030] Figure 6 A schematic diagram of an unfolded control assembly provided according to an embodiment of the utility model is shown.

[0031] Legend:

[0032] 10. Frame; 11. Pressing roller; 12. Conveying shaft; 13. Conveying belt; 14. Connecting block; 15. Connecting rod; 16. Pressing wheel; 20. Glue transfer assembly; 21. Glue container box; 211. First cover plate; 212. Second cover plate; 22. Glue suction hose; 23. Glue supply pump; 24. Glue outlet hose; 25. Square tube; 251. Baffle; 252. Scraper; 253. Slide rail; 26. Paste drum disc; 27. Motor; 30. Control assembly; 31. Rack; 32. Gear; 33. Rotating shaft; 34. Knob; 35. Bolt. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] See also Figure 1-6 The utility model provides a technical solution: a corrugated cardboard gluing device, comprising a frame 10, a glue transfer component 20 for applying glue to the corrugated cardboard is arranged on one side of the frame 10, the glue transfer component 20 comprises a glue box 21 mounted on one side of the frame 10 and a glue supply pump 23 connected to the bottom of the inner cavity of the glue box 21 through a glue suction tube 22, the glue supply pump 23 is connected to a square tube 25 through a glue outlet tube 24, and the square tube 25 is connected to the top of the inner cavity of the glue box 21; when the glue supply pump 23 is started, the glue placed at the bottom of the glue box 21 can be transferred to the top of the inner cavity of the glue box 21 and flow out.

[0035] A first cover plate 211 is installed at the top opening of the glue box 21, and a glue drum disc 26 extending out of the opening of the first cover plate 211 is arranged in the glue box 21. A glue outlet gap is arranged between the pipe mouth of the square tube 25 and the top side wall of the glue drum disc 26. The glue flows out from the pipe mouth of the square tube 25 and flows on the side wall at the edge of the glue drum disc 26 for transmission; the length of the pipe mouth of the square tube 25 is equal to the thickness of the glue drum disc 26, which can facilitate the glue in the square tube 25 to flow evenly on the side wall at the edge of the glue drum disc 26.

[0036] The frame 10 is equipped with a pressing roller 11 and two conveying shafts 12. The pressing roller 11 is hinged to the top of the frame 10. The two conveying shafts 12 are sleeved with conveyor belts 13. The conveying shafts 12 are used to control the operation of the conveyor belts 13. The conveyor belts 13 are used to convey corrugated paper placed on the conveyor belts 13.

[0037] A scraper 252 is slidably connected to the top of the square tube 25. The scraper 252 slides in a direction close to or away from the glue drum disc 26. A control component 30 for controlling the sliding of the scraper 252 is provided on the square tube 25. The glue passes through the glue scraping gap between the glue drum disc 26 and the scraper 252, adheres to the side wall of the outer wheel of the glue drum disc 26, and is transmitted to the opening of the first cover plate 211 to be smeared on the corrugated cardboard. The size of the glue scraping gap is smaller than the size of the glue outlet gap. The scraper 252 can be moved to adjust the size of the glue scraping gap, and the degree of glue transmitted to the opening of the first cover plate 211 is adjusted.

[0038] The frame 10 is equipped with a connecting block 14, and a connecting rod 15 is connected to one side of the connecting block 14 close to the glue drum disc 26. The end of the connecting rod 15 close to the glue drum disc 26 is rotatably connected to a pressing wheel 16. A gluing gap is formed between the pressing wheel 16 and the glue drum disc 26. When the corrugated cardboard passes over the glue drum disc 26, the glue on the top of the glue drum disc 26 is transferred to the lower edge of the corrugated cardboard for smearing. In order not to affect the transmission of the corrugated paper, the size of the gluing gap is the same as the thickness of the corrugated paper. The pressing wheel 16 is used to prevent the corrugated paper from tilting up, so that the glue on the top of the glue drum disc 26 can be evenly smeared on the lower edge of the corrugated cardboard.

[0039] Traditionally, the glue on the glue cylinder will gradually decrease during use, and the bonding area of ​​the glue coating wheel will also gradually decrease. However, the area of ​​the glue adhering to the glue coating wheel that is separated from the glue coating wheel will gradually increase under the action of centrifugal force. This will easily cause the glue applied to the bottom edge of the corrugated cardboard by the gluing mechanism to gradually decrease during use, thereby affecting the bonding effect between the corrugated cardboards. Therefore, a corrugated cardboard gluing device is designed to solve this problem.

[0040] The staff can place glue in the glue box 21 and start the glue supply pump 23. The glue at the bottom of the glue box 21 is transmitted to the glue outlet gap between the glue drum disc 26 and the square tube 25 through the glue suction tube 22, the glue supply pump 23, the glue outlet tube 24, and the square tube 25, and flows onto the glue drum disc 26; the glue then passes through the glue scraping gap between the glue drum disc 26 and the scraper 252, so that the thickness of the glue transmitted to the opening of the first cover plate 211 is uniform, and the glue transmitted to the opening of the first cover plate 211 will be transferred to the lower edge of the corrugated cardboard for smearing, and the smearing thickness is uniform. In addition, during long-term use, the thickness of the glue transmitted to the opening of the first cover plate 211 will not change, and the smearing thickness will not change either; the problem that during the use of the gluing mechanism, the glue smeared on the lower edge of the corrugated cardboard gradually decreases, affecting the adhesion effect between the corrugated cardboards is solved.

[0041] When the glue passes through the glue scraping gap between the glue drum disc 26 and the scraper 252, so that the glue thickness transmitted to the opening of the first cover plate 211 is uniform, the glue scraped off by the scraper 252 will drip to the bottom of the glue box 21 under the action of gravity, and under the action of the glue supply pump 23, it is transmitted to the glue discharge gap between the glue drum disc 26 and the square tube 25 through the glue suction tube 22, the glue supply pump 23, the glue discharge tube 24, and the square tube 25, and flows on the glue drum disc 26. The glue will continue to pass through the glue scraping gap between the glue drum disc 26 and the scraper 252, be transmitted to the opening of the first cover plate 211, and be smeared on the lower edge of the corrugated cardboard. Therefore, the scraped glue can be reused to reduce waste.

[0042] Specifically, Figure 6As shown, a notch is provided on the side of the scraper 252 close to the glue drum disc 26, and a scraping gap is provided between the inner wall of the notch away from the glue drum disc 26 and the outer wheel side wall of the glue drum disc 26. To prevent the glue from overflowing when passing through the scraping gap, the side walls of the glue drum disc 26 are attached to the side walls of the notch, and the top wall of the scraper 252 is attached to the bottom wall of the first cover plate 211, thereby ensuring the uniformity of the thickness of the glue adhering to the glue drum disc 26 after passing through the scraping gap.

[0043] Specifically, Figure 5-6 As shown, at the glue outlet gap, in order to prevent excessive overflow of glue flowing on the glue drum disc 26, baffles 251 are installed on both sides of the square tube 25, and the two baffles 251 are respectively attached to the side walls of the glue drum disc 26, and the bottom wall of the scraper 252 is attached to the top wall of the baffle 251; a motor 27 is installed on the outer wall of the glue box 21, and the output end of the motor 27 passes through the side wall of one side of the sol box and is connected to the glue drum disc 26. When the motor 27 is started, the glue drum disc 26 will rotate, and the glue flowing on the glue drum disc 26 will be transferred to the top, and the corrugated paper will be smeared.

[0044] Specifically, Figure 4-5 As shown, the control component 30 includes a rack 31 and a gear 32 installed in the glue box 21. The rack 31 is slidably installed on the top of the square tube 25 through the slide rail 253 and meshes with the gear 32. The end of the rack 31 close to the glue drum disc 26 is connected to the scraper 252. A rotating shaft 33 is installed in the glue box 21. One end of the rotating shaft 33 is connected to the gear 32, and the other end passes through the first cover plate 211 and is connected to a knob 34. When the knob 34 is turned clockwise, the gear 32 rotates clockwise, and the rack 31 drives the scraper 252 to move in a direction away from the glue drum disc 26. The glue scraping gap between the glue drum disc 26 and the scraper 252 is reduced. Conversely, when the knob 34 is turned counterclockwise, the glue scraping gap between the glue drum disc 26 and the scraper 252 is increased. Therefore, the glue scraping gap can be adjusted by turning the knob 34, thereby adjusting the glue thickness transmitted to the opening of the first cover plate 211 and controlling the amount of glue applied on the corrugated paper. The operation is simple and convenient.

[0045] Specifically, Figure 5 As shown, in order to prevent the scraper 252 from loosening during use, a bolt 35 is screwed onto the knob 34 through a threaded connection. The screw portion of the bolt 35 passes through the knob 34 and abuts against the top of the first cover plate 211 to prevent the knob 34 from rotating. The gear 32 and the rack 31 will not loosen, and the scraper 252 connected to the rack 31 will not loosen either.

[0046] Specifically, Figure 1-3As shown, in order to facilitate the staff to pour glue into the glue box 21, a second cover plate 212 is also installed at the top opening of the glue box 21. The second cover plate 212 and the first cover plate 211 are respectively arranged on the side away from and close to the frame 10, and the side wall of the first cover plate 211 is in contact with the side wall of the second cover plate 212. Therefore, the staff can pour glue into the glue box 21 by opening the second cover plate 212, and can also observe the sliding position of the scraper 252 by opening the second cover plate 212. When the glue drum disc 26 or the control component 30 is damaged, the glue drum disc 26 or the control component 30 can be replaced by opening the first cover plate 211, which is simple and convenient to operate.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A corrugated board gluing device, comprising a frame (10), characterized in that: A glue transfer component (20) for applying glue to the corrugated cardboard is arranged on one side of the frame (10), and the glue transfer component (20) comprises a glue containing box (21) mounted on one side of the frame (10) and a glue supply pump (23) connected to the bottom of the inner cavity of the glue containing box (21) through a glue suction tube (22), and the glue supply pump (23) is connected to a square tube (25) through a glue outlet tube (24), and the square tube (25) is connected to the top of the inner cavity of the glue containing box (21); A first cover plate (211) is installed at the top opening of the glue container (21); a glue drum disc (26) extending out of the opening of the first cover plate (211) is arranged in the glue container (21); a scraper (252) is slidably connected to the top of the square tube (25); the scraper (252) slides in a direction approaching or away from the glue drum disc (26); a control component (30) for controlling the sliding of the scraper (252) is arranged on the square tube (25); glue passes through the glue scraping gap between the glue drum disc (26) and the scraper (252), adheres to the side wall of the outer wheel of the glue drum disc (26), and is transferred to the opening of the first cover plate (211) to be smeared on the corrugated cardboard.

2. A corrugated board gluing device according to claim 1, characterized in that: A notch is provided on one side of the scraper (252) close to the paste drum disc (26), and the side walls of the paste drum disc (26) are in contact with the side walls of the notch. A scraping gap is provided between the inner wall of the notch away from the paste drum disc (26) and the outer wheel side wall of the paste drum disc (26), and the top wall of the scraper (252) is in contact with the bottom wall of the first cover plate (211).

3. A corrugated board gluing device according to claim 2, characterized in that: A glue outlet gap is provided between the pipe opening of the square tube (25) and the top side wall of the glue drum disc (26); baffles (251) are installed on both longitudinal sides of the pipe opening of the square tube (25); the two baffles (251) are respectively in contact with the side walls of the glue drum disc (26); the bottom wall of the scraper (252) is in contact with the top wall of the baffle (251); a motor (27) is installed on the outer wall of the glue container box (21); the output end of the motor (27) passes through the side wall of one side of the glue sol box and is connected to the glue drum disc (26).

4. A corrugated board gluing and coating device according to claim 2, characterized in that: The control assembly (30) comprises a rack (31) and a gear (32) installed in the glue container (21); the rack (31) is slidably installed on the top of the square tube (25) through a slide rail (253) and meshes with the gear (32); one end of the rack (31) close to the glue drum disc (26) is connected to the scraper (252).

5. A corrugated board gluing and coating device according to claim 4, characterized in that: A rotating shaft (33) is installed in the plastic container (21), one end of the rotating shaft (33) is connected to the gear (32), and the other end passes through the first cover plate (211) and is connected to a knob (34), a bolt (35) is screwed on the knob (34) through a thread, and the screw portion of the bolt (35) passes through the knob (34) and abuts against the top of the first cover plate (211).

6. A corrugated board gluing and coating device according to claim 1, characterized in that: The frame (10) is equipped with a pressing roller (11) and two conveying shafts (12); the pressing roller (11) is hinged to the top of the frame (10); and the two conveying shafts (12) are sleeved with conveyor belts (13).

7. A corrugated board gluing and coating device according to claim 6, characterized in that: The frame (10) is equipped with a connecting block (14), a side of the connecting block (14) close to the gluing disc (26) is connected to a connecting rod (15), an end of the connecting rod (15) close to the gluing disc (26) is rotatably connected to a pressing wheel (16), and a gluing gap is formed between the pressing wheel (16) and the gluing disc (26).

8. The gluing and coating device for corrugated board according to claim 7, characterized in that: A second cover plate (212) is also installed at the top opening of the glue container box (21), and the second cover plate (212) and the first cover plate (211) are respectively arranged on a side away from and close to the frame (10), and a side wall of the first cover plate (211) is in contact with a side wall of the second cover plate (212).

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