Anti-glue-blocking glue spreading roller for paper box

Abstract

The utility model relates to a carton anti-blocking glue spreading roller which comprises a roller, a glue inlet pipe penetrating through the front end face and the rear end face of the roller is arranged in the middle of the roller, a plurality of through holes are formed in the outer edge face of the roller, the through holes are evenly distributed along the circumference of the roller and are arranged in multiple sets in the axial direction, a rotating block is arranged in each through hole, and one end of each rotating block is hinged to the inner wall of the corresponding through hole. An arc-shaped glue outlet hole penetrating through the inner side end face and the outer side end face is formed in each rotating block, the through holes are communicated with the outside through the glue outlet holes, an arc-shaped rod is fixed to the side, close to the hinged shaft of the rotating block, of the inner wall of each through hole, and when the rotating blocks swing towards the inner side of the through holes around the hinged shaft, the arc-shaped rods can be inserted into the glue outlet holes; when the rotating block swings to the outermost side of the through hole, the end part of the arc-shaped pipe is separated from the glue outlet hole; according to the glue discharging device, the rotating block is arranged to block glue liquid and can swing along the hinge shaft after being extruded by a paperboard, so that the arc-shaped rod can extrude out the glue liquid in the glue discharging hole, glue discharging is carried out in a physical extrusion mode, and the glue discharging efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of carton production, in particular to a carton anti-blocking glue coating roller. Background Art

[0002] The production process of packaging cartons requires multiple processes. Different types of paper are cut and glued layer by layer to form cardboard, and then the cardboard is folded and glued to form cartons. The gluing process is inseparable from gluing. After a long period of gluing, the existing gluing roller will have solidified glue remaining on the surface. The gluing holes of the gluing roller are easily blocked, resulting in uneven gluing, which affects the subsequent gluing operation. Manual cleaning or replacement of the gluing roller is required regularly;

[0003] Announcement No. CN 214021746 U discloses a glue coating roller for carton processing. The glue coating effect is improved by arranging multiple groups of glue suction and coating mechanisms on the outer side of the glue coating roller to absorb the glue liquid remaining on the surface of the glue coating roller. However, the adsorption method is too idealistic. It is difficult to effectively absorb the glue liquid in actual production, and even causes blockage of the glue suction component. In addition, the solution uses glue discharge micropores to discharge glue, which is more likely to cause overall blockage of the glue coating mechanism, and the subsequent cleaning is more cumbersome, and the practicality is poor. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model adopts a carton anti-blocking glue coating roller, which solves the problems of easy clogging of the glue outlet hole of the glue coating roller and uneven gluing in the prior art.

[0005] The technical solution is a carton anti-blocking glue coating roller, comprising a roller, which is a cylindrical shell placed front and back with its axis horizontally, a glue inlet pipe penetrating the front and rear end surfaces of the roller is arranged in the middle of the roller, the glue inlet pipe cavity is connected with the roller cavity, and the glue inlet pipe is rotatably connected to the roller, a plurality of through holes are provided on the outer edge surface of the roller, the through holes are evenly distributed along the circumference of the roller and multiple groups are arranged along the axial direction, a rotating block is provided in each through hole, one end of the rotating block is hinged to the inner wall of the through hole, and the other end extends out of the through hole, and the through hole is always blocked when the rotating block rotates around the hinge axis; an arc-shaped glue outlet hole penetrating the inner and outer end surfaces is provided on each rotating block, the through hole is connected with the outside through the glue outlet hole, and an arc rod is fixed on one side of the inner wall of each through hole close to the hinge axis of the rotating block, when the rotating block swings around the hinge axis to the inside of the through hole, the arc rod can be inserted into the glue outlet hole, and when the rotating block swings to the outermost side of the through hole, the end of the arc tube is separated from the glue outlet hole.

[0006] The rotating block is a fan-shaped block, and the end face of the rotating block away from the hinge axis and the corresponding inner wall of the through hole are both arc-shaped surfaces. When the rotating block rotates around the hinge axis, the two arc-shaped surfaces always fit together so that the rotating block always blocks the through hole.

[0007] There are multiple groups of glue outlet holes and corresponding arc-shaped rods in each through hole.

[0008] A torsion spring is arranged at the hinge axis position of each rotating block, and the torsion spring makes the rotating block always extend out of the through hole.

[0009] The outer edge surface of the glue inlet pipe is provided with a plurality of glue inlet holes, and the glue inlet holes connect the glue inlet pipe cavity with the drum cavity.

[0010] A gear is coaxially fixed on the front end surface of the drum.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. By setting a rotating block to block the glue, it can swing along the hinge axis after being squeezed by the cardboard, so that the arc rod can squeeze out the glue in the glue outlet hole, and the glue is discharged by physical extrusion, which greatly improves the glue discharge efficiency and reduces the risk of glue blockage;

[0013] 2. After the glue coating is completed, the arc rod is extended out of the glue outlet during the rebound process of the rotating block to expand the cavity of the glue outlet hole, which can draw back the excess glue to avoid the glue remaining on the outside of the rotating block and affecting the subsequent glue coating accuracy;

[0014] 3. By setting up multiple groups of rotating blocks, glue can be applied to cardboards of different specifications. Only the rotating blocks squeezed by the cardboard can smoothly discharge glue, avoiding waste and residue of glue, and greatly improving the practicality of the glue coating roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the utility model.

[0016] Figure 2 It is a front sectional view of the utility model.

[0017] Figure 3 This is a front cross-sectional view of the upper roller during the practical gluing process.

[0018] Figure 4 This is a three-dimensional assembly diagram of the utility model without the gears. DETAILED DESCRIPTION

[0019] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] Depend on Figures 1 to 4The utility model includes a roller 1, which is a cylindrical shell with its axis horizontally placed front and back. A rubber inlet pipe 2 is arranged in the middle of the roller 1 and passes through the front and rear end surfaces of the roller 1. The cavity of the rubber inlet pipe 2 is connected with the cavity of the roller 1, and the rubber inlet pipe 2 is rotatably connected with the roller 1. A plurality of through holes 3 are opened on the outer edge of the roller 1. The through holes 3 are evenly distributed along the circumference of the roller 1 and multiple groups are arranged along the axial direction. A rotating block 4 is arranged in each through hole 3. One end of the rotating block 4 is hinged to the inner wall of the through hole 3, and the other end is hinged to the inner wall of the through hole 3. The end extends out of the through hole 3, and the through hole 3 is always blocked when the rotating block 4 rotates around the hinge axis; each rotating block 4 is provided with an arc-shaped glue outlet hole 5 that runs through the inner and outer end faces, and the through hole 3 is connected with the outside through the glue outlet hole 5, and an arc-shaped rod 6 is fixed on the side of the inner wall of each through hole 3 close to the hinge axis of the rotating block 4. When the rotating block 4 swings around the hinge axis toward the inside of the through hole 3, the arc-shaped rod 6 can be inserted into the glue outlet hole 5, and when the rotating block 4 swings to the outermost side of the through hole 3, the end of the arc-shaped tube 6 is separated from the glue outlet hole 5.

[0021] The rotating block 4 is a fan-shaped block, and the end surface of the rotating block 4 away from the hinge axis and the corresponding inner wall of the through hole 3 are both arc-shaped surfaces. When the rotating block 4 rotates around the hinge axis, the two arc-shaped surfaces always fit together so that the rotating block 4 always blocks the through hole 3.

[0022] There are multiple groups of glue outlet holes 5 and corresponding arc rods 6 in each through hole 3.

[0023] A torsion spring is provided at the hinge axis position of each of the rotating blocks 4 , and the torsion spring enables the rotating block 4 to always extend out of the through hole 3 .

[0024] The outer edge surface of the glue inlet pipe 2 is provided with a plurality of glue inlet holes 7 , and the glue inlet holes 7 connect the cavity of the glue inlet pipe 2 with the cavity of the roller 1 .

[0025] A gear 8 is coaxially fixed to the front end surface of the drum 1 .

[0026] It is worth mentioning that when setting the diameter of the glue outlet hole 5, it should be adapted to the viscosity of the glue liquid so that the glue liquid cannot flow out of the glue outlet hole 5 in large quantities under normal pressure.

[0027] When the utility model is in use, firstly, the front gear 8 of the roller 1 is connected with the driving motor through the gear set, and then the glue inlet pipe 2 is connected with the glue application pipe, and the glue liquid can enter the cavity of the roller 1 through the glue inlet pipe 2 and the glue inlet hole 7. The carton board is located on the upper side of the roller 1 and passes through the glue coating roller so that the side that needs to be coated with glue faces downward. When the motor drives the roller 1 to rotate, the glue liquid can be spread all over the through holes 3 on the lower side under the action of gravity. Since the diameter of the glue outlet hole 5 is small, the glue liquid entering the through hole 3 can only flow slowly in the glue outlet hole 5 until the through hole 3 carrying the glue liquid and the rotating block 4 move to the upper side and contact the lower end surface of the carton board, and the paperboard is Under the extrusion action of the lower end surface, the rotating block 4 overcomes the torsion force of the torsion spring and swings toward the inside of the through hole 3, and the arc rod 6 can be inserted into the glue outlet hole 5 and push the glue in the glue outlet hole 5 outward, and the pushed glue can adhere to the lower end surface of the paperboard, that is, the gluing is completed; the rotating block 4 continues to rotate with the roller 1 until it is separated from the paperboard, and the rotating block 4 is reset to the outermost side outward under the action of the torsion spring, and the arc rod 6 is separated from the glue outlet hole 5 again. During the period when the arc rod 6 is pulled out of the glue outlet hole 5, the excess glue can be drawn back into the glue outlet hole 5. When the rotating block 4 rotates to the lower side position again, the new glue can flow into the glue outlet hole 5 again to complete the material replenishment, thereby realizing the gluing cycle.

[0028] The utility model provides a rotating block 4 to block the glue liquid, and at the same time, it can swing along the hinge axis after being squeezed by the cardboard, so that the arc rod 6 can squeeze out the glue liquid in the glue outlet hole 5, and glue is discharged by physical extrusion, which greatly improves the glue discharge efficiency and reduces the risk of glue blockage; after the gluing is completed, the arc rod 6 extends out of the glue outlet hole 5 during the rebound process of the rotating block 4, so that the cavity of the glue outlet hole 5 can be expanded, and the excess glue liquid can be drawn back, so that the glue liquid is not left on the outside of the rotating block 4 and affects the subsequent gluing accuracy; by arranging multiple groups of rotating blocks 4, glue can be applied to cards of different specifications, and only the rotating block 4 squeezed by the cardboard can smoothly discharge glue, so that waste and residue of glue liquid are avoided, and the practicality of the glue coating roller is greatly improved.

Claims

1. A carton anti-blocking glue coating roller, characterized in that: The roller (1) comprises a cylindrical shell with its axis horizontally arranged front and back. A rubber inlet pipe (2) is arranged in the middle of the roller (1) and passes through the front and rear end surfaces of the roller (1). The cavity of the rubber inlet pipe (2) is connected to the cavity of the roller (1), and the rubber inlet pipe (2) is rotatably connected to the roller (1). A plurality of through holes (3) are opened on the outer edge surface of the roller (1). The through holes (3) are evenly distributed along the circumference of the roller (1) and a plurality of groups are arranged along the axial direction. A rotating block (4) is arranged in each through hole (3). One end of the rotating block (4) is hinged to the inner wall of the through hole (3), and the other end protrudes out of the through hole. (3) outside, the rotating block (4) always blocks the through hole (3) when rotating around the hinge axis; each rotating block (4) is provided with an arc-shaped glue outlet hole (5) penetrating the inner and outer end surfaces, the through hole (3) is connected to the outside through the glue outlet hole (5), and an arc-shaped rod (6) is fixed on the inner wall of each through hole (3) on one side close to the hinge axis of the rotating block (4); when the rotating block (4) swings around the hinge axis toward the inside of the through hole (3), the arc-shaped rod (6) can be inserted into the glue outlet hole (5); when the rotating block (4) swings to the outermost side of the through hole (3), the end of the arc-shaped rod (6) is separated from the glue outlet hole (5).

2. A carton anti-blocking glue coating roller according to claim 1, characterized in that: The rotating block (4) is a fan-shaped block, and the end surface of the rotating block (4) away from the hinge axis and the inner wall of the corresponding through hole (3) are both arc-shaped surfaces. When the rotating block (4) rotates around the hinge axis, the two arc-shaped surfaces are always in contact with each other so that the rotating block (4) always blocks the through hole (3).

3. The carton anti-blocking glue coating roller according to claim 1, characterized in that: Multiple groups of glue outlet holes (5) and corresponding arc-shaped rods (6) are provided in each through hole (3).

4. The carton anti-blocking glue coating roller according to claim 1, characterized in that: A torsion spring is provided at the hinge axis position of each of the rotating blocks (4), and the torsion spring enables the rotating block (4) to always extend out of the through hole (3).

5. The carton anti-blocking glue coating roller according to claim 1, characterized in that: The outer edge surface of the glue inlet pipe (2) is provided with a plurality of glue inlet holes (7), and the glue inlet holes (7) connect the cavity of the glue inlet pipe (2) with the cavity of the roller (1).

6. The carton anti-blocking glue coating roller according to claim 1, characterized in that: A gear (8) is coaxially fixed to the front end surface of the roller (1).

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