Gluing mechanism of automatic box pasting machine

Abstract

The utility model discloses a gluing mechanism of an automatic box pasting machine. The gluing mechanism comprises the automatic box pasting machine, a negative pressure device, a glue supply device and a mounting plate used for being connected with a table top of the automatic box pasting machine. According to the glue supply device, the sliding block is pushed by the air cylinder to move back and forth along the sliding rod, the action speed is high, the discharging amount of the glue supply device is adjusted according to the action speed of the air cylinder, the glue spreading speed can be greatly increased while the glue spreading amount is met, and the working efficiency is improved; the gluing wheel is driven by the air cylinder to move forwards or backwards, the gluing wheel makes contact with a to-be-glued area in the moving process, the glue is evenly transferred to the to-be-glued area, the surfaces, located on the left side and the right side of the annular groove, of the gluing wheel press the to-be-glued area, and the gluing process is stable; and glue is uniformly coated, and the box pasting quality is good.

Description

Technical Field

[0001] The utility model relates to the technical field of paper box production, in particular to a gluing mechanism of an automatic box gluing machine. Background Art

[0002] In the packaging and printing industry, the application of the box gluing machine is the last process of the packaging box processing. It is to fold and shape the printed and die-cut cardboard and glue it. The machine box gluing replaces the manual box gluing method, reduces labor costs and improves efficiency. The existing box gluing machine has a simple structure. The box gluing machine is easy to cause uneven smearing due to the unevenness of the cardboard during use. In this way, some parts of the paper box will not be firmly pasted or even cannot be pasted to each other, thereby greatly reducing the production quality of the paper box. For this reason, there is a public proposal on the market to provide a fully automatic paper box gluing machine gluing mechanism, including a guide frame, a movable plate and a spraying mechanism. The guide frame includes a main frame and a driving mechanism. The driving mechanism is installed in the middle of the main frame, and the driving mechanism is fixedly connected to the main frame. The movable plate is installed in the middle of the main frame, and the movable plate is slidably connected to the main frame. The spraying mechanism is installed on the upper end surface of the movable plate. When the technology is applied, the pressure holding wheels on both sides of the smearing head will stably press the part to be smeared during the moving smearing process to ensure uniform smearing.

[0003] However, it was found that there are still major drawbacks in the use of the above-mentioned improved technology. The mobile gluing is driven by a motor and a screw, and the speed is too slow and the efficiency is low. In addition, one of the two sets of pressure wheels will always be in contact with the glue just applied on the paper box. The glue may be transferred to the surface of the pressure wheel, resulting in a lack of glue on the surface of the paper box, affecting the quality of pasting. In order to solve these problems, it is necessary to improve and optimize the gluing mechanism of the automatic box pasting machine. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a gluing mechanism for an automatic folder gluing machine.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a gluing mechanism of an automatic box-gluing machine, comprising an automatic box-gluing machine, a negative pressure device, a glue supply device and a mounting plate connected to the table of the automatic box-gluing machine, the mounting plate being provided with a material guide groove recessed in the upper surface of the mounting plate and located in the middle position in the front-to-back direction, a rotating seat being fixedly connected to the upper wall of the mounting plate and located at both the front and rear sides of the material guide groove, a support frame being rotatably connected between two groups of the rotating seats through a rotating rod, the support frame being composed of a left frame and a right frame distributed on the left and right sides, the left frame and the right frame being located on the left and right sides of the rotating rod respectively On both sides, a height adjustment structure is arranged on the lower wall of the left frame and between the end away from the rotating rod and the mounting plate; the inner wall of the right frame is slidably connected with a slider through a sliding structure; the inner wall of the slider is provided with a rectangular opening which passes through from top to bottom; the inner wall of the rectangular opening is provided with a glue coating structure for coating glue; the glue coating structure is connected to the glue supply device through a pipeline; the rear wall of the right frame is provided with a driving structure for driving the slider to slide back and forth along the sliding structure; the upper wall of the mounting plate is also provided with a glue suction structure for absorbing excess glue; the glue suction structure is connected to the negative pressure device through a hose.

[0006] As a further description of the above technical solution:

[0007] The height adjustment structure includes a fixed sleeve, a telescopic rod and a ball head connecting rod. The fixed sleeve is fixedly connected to the upper wall of the mounting plate and close to the left side of the mounting plate. The telescopic rod is threadedly connected to the inner wall of the fixed sleeve. The ball head connecting rod is rotatably connected between the upper end of the telescopic rod and the lower wall of the left frame. The fixed sleeve and the telescopic rod are locked by a locking nut.

[0008] As a further description of the above technical solution:

[0009] The sliding structure includes two groups of sliding rods, which are distributed on the left and right sides and fixedly connected between the inner front wall and the inner rear wall of the right frame in sequence. The two groups of sliding rods penetrate the inner wall of the slider and are slidably connected thereto. The slider is slidably connected to the right frame through the two groups of sliding rods.

[0010] As a further description of the above technical solution:

[0011] The driving structure is a cylinder, which is fixedly connected to the rear wall of the right frame. The cylinder extension shaft penetrates the rear wall of the right frame and extends into the right frame. The rear wall of the slider is fixedly connected to one end of the cylinder extension shaft extending into the right frame.

[0012] As a further description of the above technical solution:

[0013] The glue coating structure includes a glue feeding tube, a glue storage cylinder, and a glue coating wheel. The glue feeding tube is rotatably connected to the inner wall of the rectangular opening, and the upper and lower ends of the glue feeding tube extend to the upper and lower sides of the rectangular opening respectively. The glue storage cylinder is fixedly connected to the upper end of the glue feeding tube, and the end of the glue storage cylinder away from the glue feeding tube is connected to the glue supply device. The glue coating wheel is rotatably connected to the end of the glue feeding tube away from the glue storage cylinder through a bracket. The upper inner wall of the bracket is threadedly connected with a glue discharge head, and the lower end of the glue discharge head is fixedly connected with a rubber nozzle, and a gap is arranged between the end of the rubber nozzle away from the glue discharge head and the glue coating wheel, and the circumferential outer wall of the glue coating wheel is provided with an annular groove for storing glue, and the annular groove is located in the axial center position of the glue coating wheel.

[0014] As a further description of the above technical solution:

[0015] The glue suction structure includes two groups of glue suction boxes, both of which are embedded in the wall of the mounting plate and are located on the right side of the rotating seat, and the two groups of glue suction boxes are respectively located on the front and rear sides of the material guide groove, and the connecting line of the two groups of glue suction boxes in top view projection coincides with the glue coating route of the glue coating structure, and both groups of glue suction boxes are provided with glue suction cavities inside, and both groups of glue suction holes are provided on the upper walls of the two groups of glue suction boxes, and the opposite ends of the two groups of glue suction boxes are fixedly connected with negative pressure joints, and the opposite ends of the two groups of negative pressure joints are connected to the negative pressure device through hoses.

[0016] The utility model has the following beneficial effects:

[0017] 1. Compared with the prior art, the gluing mechanism of the automatic folder gluer has a slider that is pushed forward and backward along the slide rod by a cylinder, and has a fast movement speed. The output of the glue supply device is adjusted according to the movement speed of the cylinder, which can greatly improve the gluing speed while meeting the gluing amount, thereby improving work efficiency.

[0018] 2. Compared with the prior art, the gluing mechanism of the automatic box gluing machine is improved by feeding glue to the glue storage cylinder for pre-storage after the glue is supplied by the glue supply device, and then sent to the glue feeding tube and smeared in the annular groove of the gluing wheel through the glue outlet head. The gluing wheel is driven forward or backward by the cylinder. During the movement, the gluing wheel contacts the area to be glued and transfers the glue evenly to the area to be glued. The surfaces of the gluing wheel on the left and right sides of the annular groove press the glued area, so that the gluing process is stable, the glue is evenly applied, and the box gluing quality is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a gluing mechanism of an automatic folder gluing machine proposed by the utility model;

[0020] Figure 2 It is a partial sectional side view of the internal structure of a glue suction box of a glue coating mechanism of an automatic folder gluing machine proposed by the utility model;

[0021] Figure 3It is a partial schematic diagram of the left frame, spherical connecting rod and telescopic rod connection structure of the gluing mechanism of the automatic folder gluing machine proposed by the utility model;

[0022] Figure 4 The utility model is a partial sectional side view of a gluing wheel, a bracket and a glue feeding pipe connection structure of a gluing mechanism of an automatic folder gluing machine.

[0023] Legend:

[0024] 1. Mounting plate; 2. Material guide trough; 3. Rotating seat; 4. Rotating rod; 5. Support frame; 6. Fixed sleeve; 7. Telescopic rod; 8. Sliding rod; 9. Sliding block; 10. Glue feeding tube; 11. Glue storage cylinder; 12. Bracket; 13. Glue coating wheel; 14. Cylinder; 15. Glue suction box; 16. Glue suction hole; 17. Negative pressure joint; 18. Glue suction chamber; 19. Ball head connecting rod; 20. Glue outlet; 21. Rubber nozzle. DETAILED DESCRIPTION

[0025] 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 in 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.

[0026] Reference Figures 1 to 4 The utility model provides a gluing mechanism of an automatic folder gluer: comprising an automatic folder gluer, a negative pressure device, a glue supply device and a mounting plate 1 for connecting with the table of the automatic folder gluer, the mounting plate 1 is provided with a guide groove 2 recessed in the upper surface of the mounting plate 1 at the center position in the front-back direction, the guide groove 2 is used to receive the paperboard to be glued, and is connected with the feeding structure of the automatic folder gluer, the depth of the guide groove 2 can be selected according to the thickness of the paperboard, which is a common technology in the prior art, and will not be described in detail in this embodiment;

[0027] The upper wall of the mounting plate 1 and the front and rear sides of the guide trough 2 are fixedly connected with a rotating seat 3, and the two sets of rotating seats 3 are rotatably connected with a support frame 5 through a rotating rod 4. The support frame 5 is composed of a left frame and a right frame distributed on the left and right. The left frame and the right frame are respectively located on the left and right sides of the rotating rod 4. A height adjustment structure is arranged between the lower wall of the left frame and the end away from the rotating rod 4 and the mounting plate 1. The height adjustment structure includes a fixed sleeve 6, a telescopic rod 7 and a ball head connecting rod 19. The fixed sleeve 6 is fixedly connected to the upper wall of the mounting plate 1 and close to the left side of the mounting plate 1. The telescopic rod 7 is threadedly connected to the inner wall of the fixed sleeve 6. The ball head connecting rod 19 is rotatably connected to the telescopic rod 7 The end and the lower wall of the left frame are locked by a locking nut between the fixed sleeve 6 and the telescopic rod 7. After the locking nut is loosened, the telescopic rod 7 can be rotated to drive the telescopic rod 7 to rise and fall through the threaded connection between the telescopic rod 7 and the fixed sleeve 6, thereby driving the left frame to rise and fall. The rise and fall of the left frame synchronously drive the right frame to fall and rise, thereby achieving the function of adjusting the pressing height of the glue coating wheel 13. The axial length of the glue coating wheel 13 is relatively long. After it is attached to the surface of the cardboard, and the glue feeding pipe 10 is rotatably connected to the inner wall of the rectangular opening, the support frame 5 is tilted due to the height adjustment, which does not affect the adhesion of the glue coating wheel 13 to the surface of the cardboard;

[0028] The inner wall of the right frame is slidably connected with a slider 9 through a sliding structure. The sliding structure includes two sets of sliding rods 8. The two sets of sliding rods 8 are distributed left and right and are fixedly connected between the inner front wall and the inner rear wall of the right frame in sequence. The two sets of sliding rods 8 penetrate the inner wall of the slider 9 and are slidably connected thereto. The slider 9 is slidably connected to the right frame through the two sets of sliding rods 8. The sliding rods 8 play a role in supporting the slider 9 and also play a role in guiding.

[0029] The inner wall of the slider 9 is provided with a rectangular opening which is through from top to bottom, and the inner side wall of the rectangular opening is provided with a glue coating structure for coating glue, and the glue coating structure includes a glue feeding tube 10, a glue storage cylinder 11, and a glue coating wheel 13. The glue feeding tube 10 is rotatably connected to the inner side wall of the rectangular opening, and the upper and lower ends of the glue feeding tube 10 extend to the upper and lower sides of the rectangular opening respectively, and the glue storage cylinder 11 is fixedly connected to the upper end of the glue feeding tube 10, and the end of the glue storage cylinder 11 away from the glue feeding tube 10 is connected to the glue supply device, and the glue coating wheel 13 is rotatably connected to the end of the glue feeding tube 10 away from the glue storage cylinder 11 through the bracket 12, and the upper inner wall of the bracket 12 is threadedly connected with a glue outlet head 20, and the lower end of the glue outlet head 20 is fixedly connected with a rubber nozzle 21 A gap is provided between the end of the rubber nozzle 21 away from the glue head 20 and the glue coating wheel 13. An annular groove for storing glue is provided on the circumferential outer wall of the glue coating wheel 13. The annular groove is located at the axial center of the glue coating wheel 13. After the glue supply device supplies glue, it is sent to the glue storage cylinder 11 through the pipeline. There is pressure in the pipeline, so that the glue moves downward along the glue feeding pipe 10, and is smeared in the annular groove of the glue coating wheel 13 after being discharged by the glue head 20. When the cylinder 14 drives the glue coating wheel 13 to move, the glue coating wheel 13 contacts the surface of the cardboard, and the glue in the annular groove is evenly smeared on the surface of the cardboard to complete the gluing. The surfaces on both sides of the annular groove of the glue coating wheel 13 press the cardboard to form a material pressing effect;

[0030] The gluing structure is connected to the glue supply device through a pipeline. The rear wall of the right frame is provided with a driving structure for driving the slider 9 to slide forward and backward along the sliding structure. The driving structure is a cylinder 14, which is fixedly connected to the rear wall of the right frame. The cylinder 14 extends a shaft that penetrates the rear wall of the right frame and extends into the inside of the right frame. The rear wall of the slider 9 is fixedly connected to one end of the cylinder 14 extending the shaft that extends into the inside of the right frame. The cylinder 14 has a fast action speed. The glue supply amount of the glue supply device and the feeding speed of the folder gluer can be adjusted to greatly improve the gluing speed.

[0031] The upper wall of the mounting plate 1 is also provided with a glue suction structure for absorbing excess glue, and the glue suction structure is connected to the negative pressure device through a hose. The glue suction structure includes two groups of glue suction boxes 15, both of which are embedded in the upper wall of the mounting plate 1 and are both located on the right side of the rotating seat 3. The two groups of glue suction boxes 15 are respectively located on the front and rear sides of the material guide trough 2. The connecting line of the two groups of glue suction boxes 15 in a top-view projection coincides with the glue coating route of the glue coating structure. Both groups of glue suction boxes 15 are provided with glue suction cavities 18 inside, and the upper walls of the two groups of glue suction boxes 15 are provided with multiple groups of glue suction holes 16. The opposite ends of the two groups of glue suction boxes 15 are fixedly connected with negative pressure connectors 17, and the opposite ends of the two groups of negative pressure connectors 17 are connected to the negative pressure device through hoses. When the glue coating wheel 13 moves to the front or rear side of the material guide trough 2, in order to avoid dirtying the table top with glue, the excess glue in the annular groove is sucked away through the glue suction holes 16 by the negative pressure formed by the negative pressure device.

[0032] Working principle: the guide trough 2 is used to receive the cardboard for box gluing, and is connected with the feeding structure of the automatic box gluing machine. After loosening the locking nut, the telescopic rod 7 can be rotated, and the threaded connection between the telescopic rod 7 and the fixed sleeve 6 can drive the telescopic rod 7 to rise and fall, thereby driving the left frame to rise and fall. The rise and fall of the left frame synchronously drives the right frame to fall and rise, thereby adjusting the pressing height of the glue coating wheel 13. The axial length of the glue coating wheel 13 is relatively long. After it is attached to the surface of the cardboard, and the glue feeding pipe 10 is rotatably connected to the inner wall of the rectangular opening, the support frame 5 is tilted due to the height adjustment, which does not affect the adhesion of the glue coating wheel 13 to the surface of the cardboard. The slider 9 is slidably connected to the right frame through two sets of slide rods 8. The slide rod 8 not only supports the slider 9, but also guides it. The cylinder 14 has a fast action speed. By adjusting the glue supply amount of the glue supply device and the feeding speed of the box gluer, the gluing speed can be greatly improved. After the glue supply device supplies glue, it is sent to the glue storage cylinder 11 through the pipeline. There is pressure in the pipeline, which makes the glue move downward along the glue feeding pipe 10, and is smeared in the annular groove of the glue wheel 13 after being discharged by the glue outlet head 20. When the cylinder 14 drives the glue wheel 13 to move, the glue wheel 13 contacts the surface of the cardboard, and the glue in the annular groove is evenly smeared on the surface of the cardboard to complete the gluing. The surfaces on both sides of the annular groove of the glue wheel 13 press the cardboard to form a material pressing effect. When the glue wheel 13 moves to the front or rear side of the guide groove 2, in order to avoid dirtying the table surface with glue, the excess glue in the annular groove is sucked away by the negative pressure formed by the negative pressure device through the glue suction hole 16.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gluing mechanism for an automatic folder gluer, comprising the automatic folder gluer, a negative pressure device, a glue supply device and a mounting plate (1) for connecting to a table of the automatic folder gluer, characterized in that: The mounting plate (1) is provided with a material guide groove (2) recessed in the upper surface of the mounting plate (1) at a central position in the front-to-back direction; a rotating seat (3) is fixedly connected to the upper wall of the mounting plate (1) and located at both the front and rear sides of the material guide groove (2); a support frame (5) is rotatably connected between two groups of the rotating seats (3) via a rotating rod (4); the support frame (5) is composed of a left frame and a right frame distributed on the left and right sides; the left frame and the right frame are respectively located on the left and right sides of the rotating rod (4); the lower wall of the left frame and located at an end away from the rotating rod (4) is connected to the mounting plate (1) A height adjustment structure is provided between the right frame and the inner wall of the right frame. A slider (9) is slidably connected to the inner wall of the slider (9) via a sliding structure. A rectangular opening extending vertically through the inner wall of the slider (9) is provided. A glue coating structure for coating glue is provided on the inner wall of the rectangular opening. The glue coating structure is connected to a glue supply device via a pipeline. A driving structure for driving the slider (9) to slide forward and backward along the sliding structure is provided on the rear wall of the right frame. A glue suction structure for absorbing excess glue is also provided on the upper wall of the mounting plate (1). The glue suction structure is connected to a negative pressure device via a hose.

2. The gluing mechanism of an automatic folder-gluing machine according to claim 1, characterized in that: The height adjustment structure comprises a fixing sleeve (6), a telescopic rod (7) and a ball head connecting rod (19); the fixing sleeve (6) is fixedly connected to the upper wall of the mounting plate (1) and close to the left side of the mounting plate (1); the telescopic rod (7) is threadedly connected to the inner wall of the fixing sleeve (6); the ball head connecting rod (19) is rotatably connected between the upper end of the telescopic rod (7) and the lower wall of the left frame; the fixing sleeve (6) and the telescopic rod (7) are locked by a locking nut.

3. The gluing mechanism of an automatic folder-gluing machine according to claim 1, characterized in that: The sliding structure comprises two groups of sliding rods (8), the two groups of sliding rods (8) being distributed on the left and right sides and being fixedly connected in sequence between the inner front wall and the inner rear wall of the right frame, the two groups of sliding rods (8) both pass through the inner wall of the sliding block (9) and are both slidably connected thereto, and the sliding block (9) is slidably connected to the right frame via the two groups of sliding rods (8).

4. The gluing mechanism of an automatic folder-gluing machine according to claim 1, characterized in that: The driving structure is a cylinder (14), the cylinder (14) is fixedly connected to the rear wall of the right frame, the extension shaft of the cylinder (14) passes through the rear wall of the right frame and extends into the interior of the right frame, and the rear wall of the slider (9) is fixedly connected to one end of the extension shaft of the cylinder (14) extending into the interior of the right frame.

5. The gluing mechanism of an automatic folder-gluing machine according to claim 1, characterized in that: The glue coating structure comprises a glue feeding tube (10), a glue storage cylinder (11), and a glue coating wheel (13). The glue feeding tube (10) is rotatably connected to the inner side wall of the rectangular opening. The upper and lower ends of the glue feeding tube (10) extend to the upper and lower sides of the rectangular opening respectively. The glue storage cylinder (11) is fixedly connected to the upper end of the glue feeding tube (10). The end of the glue storage cylinder (11) away from the glue feeding tube (10) is connected to the glue supply device. The glue coating wheel (13) is rotatably connected to the inner side wall of the rectangular opening. The support (12) is connected to the end of the glue delivery tube (10) away from the glue storage cylinder (11), and the upper wall of the inner side of the support (12) is threadedly connected to a glue outlet head (20). The lower end of the glue outlet head (20) is fixedly connected to a rubber nozzle (21). A gap is provided between the end of the rubber nozzle (21) away from the glue outlet head (20) and the glue coating wheel (13). The outer wall of the circumference of the glue coating wheel (13) is provided with an annular groove for storing glue, and the annular groove is located at the axial center of the glue coating wheel (13).

6. The gluing mechanism of an automatic folder-gluing machine according to claim 1, characterized in that: The glue suction structure comprises two groups of glue suction boxes (15). The two groups of glue suction boxes (15) are embedded in the upper wall of the mounting plate (1) and are located on the right side of the rotating seat (3). The two groups of glue suction boxes (15) are located at the front and rear sides of the material guide groove (2) respectively. The connecting line of the two groups of glue suction boxes (15) in a top view coincides with the glue coating route of the glue coating structure. The two groups of glue suction boxes (15) are provided with glue suction cavities (18) inside. The upper walls of the two groups of glue suction boxes (15) are provided with a plurality of groups of glue suction holes (16). The opposite ends of the two groups of glue suction boxes (15) are fixedly connected to negative pressure joints (17). The opposite ends of the two groups of negative pressure joints (17) are connected to negative pressure devices through hoses.

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