Glue applicator for carton production

Abstract

The utility model discloses a gluer for carton production. The gluer comprises a temporary storage unit and a gluing unit, the temporary storage unit comprises a table board, and four L-shaped balancing weights are further arranged on the table board and used for limiting the corrugated boards. The gluing unit is arranged above the temporary storage unit and comprises an n-shaped frame, a button is arranged at the upper end of the transverse edge of the n-shaped frame, supporting blocks are arranged at the lower ends of the two vertical edges of the n-shaped frame respectively, extending parts are arranged at the lower ends of the supporting blocks, sliding blocks which are in sliding fit with the side face of the table board are assembled on the inner sides of the extending parts, and a first round rod, a pair of second round rods and a pair of heating plates are fixed between the two supporting blocks. N lower pressing wheels are rotationally matched with the peripheral side of the first round rod, n + 1 gluing wheels are rotationally matched with the peripheral side of the second round rod, a glue groove with the two ends fixed to the two supporting blocks is formed in the upper portion of each second round rod, and a plurality of glue falling holes located above the gluing wheels are formed in the bottom face of each glue groove. According to the utility model, a plurality of strips of glue can be accurately coated on the wave crests of the corrugated board, so that the glue coating amount can be conveniently reduced.

Description

Technical Field

[0001] This utility model relates to the field of adhesive coating technology for corrugated cardboard boxes, and in particular to an adhesive applicator for cardboard box production. Background Technology

[0002] Corrugated cardboard boxes are packaging materials made of corrugated boards and two layers of cardboard bonded to them. Some finished corrugated cardboard boxes also include a structure composed of multiple layers of corrugated boards and cardboard.

[0003] Taking the bonding process of a single corrugated board and its two layers of cardboard as an example, in existing technologies, for ease of operation, a large amount of glue is usually applied to the cardboard, rather than applying multiple strips of glue on the crests or troughs of the corrugated board. This results in a larger amount of glue being used, and also creates another problem: excessive glue forms a continuous glue film in the corrugation gaps, increasing the cardboard's moisture absorption and expansion rate, making it prone to warping and deformation in humid environments, and reducing its stability during stacking. However, applying glue on the crests or troughs requires a more precise process and is more difficult to achieve. Utility Model Content

[0004] To address the aforementioned shortcomings, this utility model provides a glue applicator for carton production, which can accurately apply multiple strips of glue to the crests of corrugated boards, thereby reducing the amount of glue applied.

[0005] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted:

[0006] A glue applicator for cardboard box production, comprising:

[0007] The temporary storage unit includes a table, on which four L-shaped counterweights are provided to limit the movement of the corrugated board;

[0008] The glue application unit, located above the temporary storage unit, includes an n-shaped frame with a button at the top of its horizontal side. The n-shaped frame also houses a controller electrically connected to the button. Support blocks are located at the bottom of the two vertical sides of the n-shaped frame, with extensions at their lower ends. Slider blocks, slidably fitted to the side of the tabletop, are mounted inside the extensions. A first round rod, a pair of second round rods, and a pair of heating plates electrically connected to the controller are fixed between the two support blocks. The two second round rods are located on opposite sides of the outer periphery of the first round rod. The outer periphery of the first round rod is rotatably fitted with n pressure rollers, and the outer periphery of the second round rod is rotatably fitted with n+1 glue application rollers. Each second round rod has a glue groove at its top, with both ends fixed to the two support blocks. The bottom surface of the glue groove has multiple glue-dropping holes located above each glue application roller. Each heating plate is located outside a set of glue-dropping tubes on each second round rod.

[0009] Furthermore, the tabletop has sliding grooves at both ends, and vertical grooves connecting to the sliding grooves are also provided at both ends of the upper surface of the tabletop. During operation, one end of the slider slides into the sliding groove.

[0010] Furthermore, the extension has a side opening on its side, and an inner ring is formed at one end of the inner circumference of the side opening. The other end of the slider has a narrow column located inside the inner ring, and a wide column located at one end of the narrow column is located at the side opening.

[0011] Furthermore, multiple pairs of limiting plates are fixed to the outer periphery of the first round rod, with each pressure roller positioned between the pairs of limiting plates.

[0012] Furthermore, the bottom of the glue tank is also provided with multiple glue-dropping pipes located below each glue-dropping hole, and the glue-dropping pipes are vertically opened with vertical holes that extend to the glue-dropping holes.

[0013] Furthermore, a through groove is provided at the lower end of the glue-dispensing tube, with the two sides and the inner top surface of the through groove located on the sides and above the glue-dispensing wheel, respectively.

[0014] The beneficial effects of this technical solution are as follows:

[0015] 1. With this cardboard box production glue applicator, the glue applicator unit can be easily dragged and glue applied to the crests of the corrugated board. The glue drop hole and vertical hole are easy to adjust in size during processing, thus allowing for better control of the glue amount.

[0016] 2. It can significantly reduce the amount of glue left in the corrugated gaps, thus reducing the moisture absorption and expansion rate of the cardboard box. Attached Figure Description

[0017] Figure 1 An overall perspective view of an embodiment of this application is shown.

[0018] Figure 2 A partial explosion of the adhesive application unit in an embodiment of this application is shown. Figure 1 .

[0019] Figure 3 A partial explosion of the adhesive application unit in an embodiment of this application is shown. Figure 2 . Detailed Implementation

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

[0021] like Figures 1-3 The illustrated glue applicator for carton production includes a temporary storage unit 1 and a glue application unit 2.

[0022] The temporary storage unit 1 includes a table 11 with multiple bases 12 at its lower end. The table 11 has sliding grooves 14 at both ends. The table 11 also has vertical grooves 15 at both ends of its upper surface that connect to the sliding grooves 14. The table 11 also has four movable L-shaped counterweights 16 for limiting the corrugated board. The L-shaped counterweights 16 are made of lead.

[0023] The gluing unit 2 is located above the temporary storage unit 1 and includes an n-shaped frame 21. A button 211 is located at the upper end of one of its horizontal sides. A controller electrically connected to the button 211 is also located inside the n-shaped frame 21. The controller uses a microcontroller. Support blocks 22 are respectively located at the lower ends of the two vertical sides of the n-shaped frame 21. An extension 221 is located at the lower end of each support block 22. A side opening 222 is opened on the side of the extension 221. An inner ring 223 is formed at one end of the inner circumference of the side opening 222. A sliding fitting is mounted on the inner side of the extension 221 during operation. The slider 23 is fitted into the slide groove 14. At the other end of the slider 23 is a narrow column 231 located within the inner ring 223. At one end of the narrow column 231 is a wide column 232 located at the side opening 222. A first round rod 24, a pair of second round rods 26, and a pair of heating plates 28 electrically connected to the controller are fixed between the two support blocks 22. The two second round rods 26 are located on both sides of the outer periphery of the first round rod 24. The outer periphery of the first round rod 24 is rotatably fitted with n pressure rollers 25. The pressure rollers 25 are used to press the corrugated paper... The number of n is one or two fewer than the number of troughs of the corrugated board placed on the table 11. Multiple pairs of limiting plates 241 are fixed to the outer periphery of the first round rod 24, and each pressure roller 25 is positioned between each pair of limiting plates 241. The outer periphery of the second round rod 26 is rotatably fitted with n+1 glue-applying rollers 261. When the pressure rollers 25 are on the troughs of the corrugated paper, the bottom ends of the outer periphery of each glue-applying roller 261 contact each crest of the corrugated paper. Each second round rod 26 has two ends fixed to two... The glue tank 27 of the support block 22 has multiple glue-dropping holes 271 located above each glue-applying wheel 261 on its bottom surface. The bottom end of the glue tank 27 also has multiple glue-dropping tubes 272 located below each glue-dropping hole 271. Each glue-dropping tube has a vertical hole that extends through to the glue-dropping hole. The lower end of the glue-dropping tube 272 has a through groove. The two sides and the inner top surface of the through groove are located on the two sides and above the glue-applying wheel 261, respectively. Each heating plate 28 is located on the outside of a set of glue-dropping tubes 272 on each second round rod 26.

[0024] Work style:

[0025] First, place the corrugated board on the table 11, and then assemble the entire glue application unit 2 onto the temporary storage unit 1. Specifically, the slider 23 can pass through the two vertical grooves 15, and then the slider 23 slides laterally in the groove 14.

[0026] Preferably, when the slider 23 is located in the vertical groove 15, the position of the corrugated plate can be finely adjusted along the length direction of the n-shaped frame 21 according to the position of each glue-applying wheel 261 and the pressure wheel 25. Then, an L-shaped counterweight 16 is placed on the table 11 to fix the corrugated plate and prevent it from sliding during glue application.

[0027] Before applying the adhesive, glue is poured into the glue tank 27, and preferably, a heating plate 28 that heats up quickly is used to facilitate operation.

[0028] When starting to apply glue, press button 211. The controller controls the heating plate 28 to heat the glue tube 272. Hold the n-shaped frame 21 and move it slowly. After the glue is dispensed, it falls onto the glue application wheel 261. Hold the n-shaped frame 21 and move the device from one side of the corrugated board to the other side. The glue application wheel 261 applies the glue to the troughs of the corrugated board. Depending on the actual heating temperature, you can press the button again in advance to stop the heating plate 28 from working, and the glue in the glue tube 272 will solidify and stop dispensing glue.

[0029] At this point, remove the two L-shaped counterweights 16 and then take out the glue application unit 2. Then, stick the cardboard onto the corrugated board and invert the corrugated board. This will turn the previous trough position into the crest position. Repeat the above steps to apply glue and stick the cardboard again.

[0030] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A glue applicator for cardboard box production, characterized in that, include: The temporary storage unit (1) includes a table (11), and four L-shaped counterweights (16) are provided on the table (11) to limit the corrugated board; The glue application unit (2) is located above the temporary storage unit (1) and includes an n-shaped frame (21). A button (211) is located at the upper end of the horizontal side of the n-shaped frame (21). A controller electrically connected to the button (211) is also located inside the n-shaped frame (21). Support blocks (22) are located at the lower ends of the two vertical sides of the n-shaped frame (21). An extension (221) is located at the lower end of each support block (22). A slider (23) that slides against the side of the tabletop (11) is mounted inside the extension (221). A first round rod (24), a pair of second round rods (26), and a pair of heating plates electrically connected to the controller are fixed between the two support blocks (22). 28), two second round rods (26) are located on the outer periphery of the first round rod (24) respectively. The outer periphery of the first round rod (24) is rotatably fitted with n pressure rollers (25), and the outer periphery of the second round rod (26) is rotatably fitted with n+1 glue-applying rollers (261). Each second round rod (26) is provided with a glue groove (27) with both ends fixed to two support blocks (22) respectively. The bottom surface of the glue groove (27) is provided with multiple glue-dropping holes (271) located above each glue-applying roller (261). Each heating plate (28) is located on the outside of a set of glue-dropping pipes (272) on each second round rod (26).

2. The glue applicator for carton production according to claim 1, characterized in that, The table (11) has a sliding groove (14) at both ends. The table (11) also has a vertical groove (15) at both ends of the upper surface that connects to the sliding groove (14). During operation, one end of the slider (23) slides into the sliding groove (14).

3. The glue applicator for carton production according to claim 1, characterized in that, The extension (221) has a side opening (222) on its side. One end of the inner circumference of the side opening (222) is also formed with an inner ring (223). The other end of the slider (23) is provided with a narrow column (231) located in the inner ring (223). One end of the narrow column (231) is provided with a wide column (232) located in the side opening (222).

4. The glue applicator for carton production according to claim 1, characterized in that, Multiple pairs of limiting plates (241) are fixed on the outer periphery of the first round rod (24), and each pressure roller (25) is respectively located between each pair of limiting plates (241).

5. The glue applicator for carton production according to claim 1, characterized in that, The bottom of the glue tank (27) is also provided with multiple glue drop tubes (272) located below each glue drop hole (271). The glue drop tubes (272) are vertically opened with vertical holes that pass through to the glue drop holes (271).

6. The glue applicator for carton production according to claim 5, characterized in that, The lower end of the glue-dispensing tube (272) is provided with a through groove, and the two sides and the inner top surface of the through groove are located on the sides and above the glue-dispensing wheel (261), respectively.

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