Gluing device for carton processing with automatic feeding and discharging functions

Abstract

The invention discloses an automatic feeding and discharging gluing device for carton processing. The automatic feeding and discharging gluing device comprises a U-shaped frame. The conveying mechanism comprises two transmission rollers rotationally connected between the front inner wall and the rear inner wall of the U-shaped frame, a conveying belt is jointly wound on the two transmission rollers, and a mounting frame is fixedly connected to the rear side of the U-shaped frame; the lifting mechanism comprises an L-shaped plate fixedly connected to the upper end of the U-shaped frame, a hydraulic telescopic rod is installed at the upper end of the L-shaped plate, the telescopic end of the hydraulic telescopic rod penetrates through the L-shaped plate and is fixedly connected with a rectangular strip, two vertical plates are symmetrically and fixedly connected to the lower end of the rectangular strip, a cavity is formed in the rectangular strip, and the vertical plates are fixedly connected to the lower end of the rectangular strip. A plurality of liquid holes are formed in the inner bottom of the cavity. When the device is actually used, the integrated action of limiting and quantitative gluing can be carried out, the stability of paperboards during gluing is guaranteed, in addition, it can be guaranteed that a glue solution is in a uniform-temperature and flowing state, and the using effect of the glue solution is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of carton processing, and in particular to a gluing device for carton processing with automatic loading and unloading. Background Art

[0002] As an indispensable basic material in modern logistics and packaging, cartons are widely used in the transportation, storage and sales of various commodities. With the continuous development of the global economy and the booming e-commerce, the demand for cartons has shown a steady growth trend. In the production and processing of cartons, the gluing process is the key link to ensure the stability of the carton structure and good sealing performance. Its quality directly affects the overall quality and service life of the carton. The traditional gluing device still has the following problems; 1. Most traditional gluing devices for carton processing use a relatively simple gluing method. In actual production, it is easy to apply too much or too little glue. Excessive glue application will not only cause waste of glue liquid and increase production costs, but may also cause glue overflow, contaminate the surface of the cardboard, and affect the appearance quality of the carton; 2. During the gluing operation, the stable positioning of the cardboard is crucial. However, the traditional gluing device lacks an effective limiting mechanism, and the cardboard is prone to displacement or shaking during the gluing process, which not only leads to inaccurate gluing position and makes it impossible to evenly apply glue to the predetermined area of ​​the cardboard, but also affects the continuity and stability of gluing, reducing production efficiency; 3. The glue box design of traditional glue coating equipment is usually relatively simple. The glue liquid remains static in the glue box for a long time, which is prone to coagulation and precipitation. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings existing in the prior art, and to propose a gluing device for carton processing with automatic loading and unloading. When actually used, the device can perform an integrated action of limiting and quantitative gluing, thereby ensuring the stability of the cardboard during gluing. In addition, it can also ensure that the glue liquid is in a state of uniform temperature and flow, thereby ensuring the use effect of the glue liquid.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A glue - applying device for carton processing with automatic loading and unloading, including a U - shaped frame; a conveying mechanism, the conveying mechanism includes two driving rollers rotatably connected between the front and rear inner walls of the U - shaped frame, and a conveyor belt is wound around the two driving rollers together. An installation frame is fixedly connected to the rear side of the U - shaped frame; a lifting mechanism, the lifting mechanism includes an L - shaped plate fixedly connected to the upper end of the U - shaped frame, a hydraulic telescopic rod is installed at the upper end of the L - shaped plate, the telescopic end of the hydraulic telescopic rod penetrates through the L - shaped plate and is fixedly connected with a rectangular strip, two vertical plates are symmetrically and fixedly connected to the lower end of the rectangular strip, a cavity is arranged inside the rectangular strip, and a plurality of liquid holes are opened at the inner bottom of the cavity; a glue - injecting mechanism, the glue - injecting mechanism cooperates with the lifting mechanism to realize quantitative glue - applying to the carton board; a colloid flow mechanism, the colloid flow mechanism is used to promote the flow of the colloid and ensure uniform temperature of the glue liquid.

[0005] Preferably, a plurality of support frames are installed at the lower end of the U - shaped frame, and connecting plates are fixedly connected to both sides of the U - shaped frame.

[0006] Preferably, a driving motor is installed on the installation frame, and the output of the driving motor extends to the inner side of the U - shaped frame and is fixedly connected to the rear end of the front - side driving roller.

[0007] Preferably, the glue - injecting mechanism includes a first piston cylinder fixedly connected to the upper end of the horizontal part of the L - shaped plate, a second piston cylinder is fixedly connected to the lower end of the horizontal part of the L - shaped plate, the upper end of the first piston cylinder is communicated, the upper and lower ends of the second piston cylinder are both sealed, a first piston plate that can slide up and down is arranged inside the first piston cylinder, a second piston plate that can slide up and down is arranged inside the second piston cylinder, the lower end of the second piston plate is elastically connected to the inner bottom of the second piston cylinder through a spring, an L - shaped rod is fixedly connected to the upper end of the rectangular strip, the vertical part of the L - shaped rod penetrates through the horizontal part of the L - shaped plate and is slidably connected, the other end of the L - shaped rod is fixedly connected to a connecting rod, and the other end of the connecting rod is fixedly connected to the upper end of the first piston plate.

[0008] Preferably, a glue box is installed on the front side of the U - shaped frame, a through - hole is opened at the inner top of the glue box, the inner - top space of the second piston cylinder is communicated with the inner - bottom space of the first piston cylinder through a one - way port, the inner - bottom space of the first piston cylinder is communicated with the inner - bottom space of the glue box through a first one - way pipe, the inner - top space of the second piston cylinder is communicated with the cavity through a release pipe, and a solenoid valve is installed inside the release pipe.

[0009] Preferably, a heating plate is installed at the inner bottom of the glue box, and glue is arranged inside the glue box.

[0010] Preferably, the colloid flow mechanism includes a rotating shaft rotatably connected between the front and rear inner walls of the glue box, a plurality of stirring rods are fixedly connected to the outer side of the rotating shaft at equal intervals, and the front end of the rotating shaft extends to the outside.

[0011] Preferably, a transmission is fixedly connected to the front side of the U-shaped frame. The input shaft of the transmission is fixedly connected to the rotating shaft of the right transmission roller. Transmission wheels are installed on the output shaft of the transmission and the front end of the rotating shaft, and the two transmission wheels are connected by a transmission belt.

[0012] Preferably, the inner bottom space of the second piston cylinder communicates with the outside through a second one-way pipe, and the inner bottom space of the second piston cylinder communicates with the inner bottom space of the glue tank through a third one-way pipe.

[0013] Preferably, check valves are installed inside the first one-way pipe, the second one-way pipe, the third one-way pipe and the one-way port. The flow direction of the check valve inside the first one-way pipe is that the glue flows from the glue tank into the inner top space of the first piston cylinder unidirectionally. The flow direction of the check valve inside the second one-way pipe is that the outside air flows into the inner bottom space of the second piston cylinder unidirectionally. The flow direction of the check valve inside the third one-way pipe is that the inner bottom space of the second piston cylinder flows into the glue tank unidirectionally. The flow direction of the check valve inside the one-way port is from top to bottom.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By starting the drive motor on the mounting frame, the transmission roller is driven to rotate, and then the conveyor belt moves, realizing the stable conveyance of the cardboard on the conveyor belt, and ensuring that the cardboard can accurately enter the subsequent glue application process according to the set process.

[0015] 2. While the drive motor drives the transmission roller to rotate, the input shaft of the transmission is driven to rotate through the transmission device, and then the rotating shaft rotates. The stirring rod on the rotating shaft stirs the glue in the glue tank, enabling the glue to flow continuously, effectively avoiding the problem of the glue solidifying due to long-term stillness, and ensuring that the glue is always in a good use state.

[0016] 3. During the reciprocating movement of the second piston plate up and down, air is injected into the inner bottom of the glue tank by the cooperation of the second one-way pipe and the third one-way pipe, further enhancing the fluidity of the glue.

[0017] 4. Through the cooperation of components such as the hydraulic telescopic rod, the rectangular strip, the L-shaped rod, the connecting rod, the first piston plate, the second piston plate, the spring and the solenoid valve, precise quantitative glue application is achieved. This quantitative glue application method can accurately control the amount of glue applied, avoiding the problems of excessive or insufficient glue application, not only saving glue and reducing production costs, but also improving the bonding strength and overall quality of the cardboard box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of a glue application device for cardboard box processing with automatic loading and unloading proposed by the present invention; Figure 2 isFigure 1 Rear schematic view; Figure 3 is Figure 1 Cross-sectional view at the glue tank of; Figure 4 Structural schematic diagram of the lifting mechanism and the glue injection mechanism; Figure 5 is Figure 1 Rear schematic view of; Figure 6 Cross-sectional schematic view of the rectangular strip; Figure 7 is Figure 4 Cross-sectional schematic view of.

[0019] In the figure: 1 U-shaped frame, 2 support frames, 3 drive rollers, 4 conveyor belts, 5 connecting plates, 6 L-shaped plates, 7 glue tanks, 8 speed reducers, 9 drive belts, 10 drive wheels, 11 third one-way pipes, 12 first one-way pipes, 13 through holes, 14 mounting brackets, 15 drive motors, 16 rotating shafts, 17 stirring rods, 18 hydraulic telescopic rods, 19 rectangular strips, 20 vertical plates, 21 L-shaped rods, 22 connecting rods, 23 first piston cylinders, 24 second piston cylinders, 25 first piston plates, 26 one-way ports, 27 second piston plates, 28 release pipes, 29 springs, 30 second one-way pipes, 31 solenoid valves, 32 heating plates, 33 cavities, 34 liquid holes. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] It should be noted that the terms used here are only for describing specific implementation manners and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0022] Refer to Figures 1-7 , a glue coating device for carton processing with automatic loading and unloading, including a U-shaped frame 1. A plurality of support frames 2 are installed at the lower end of the U-shaped frame 1. Connecting plates 5 are fixedly connected to both sides of the U-shaped frame 1. By using the connecting plates 5, the device can be connected to the previous and next processes in the existing process; Among them, a conveying mechanism is further included. The conveying mechanism includes two driving rollers 3 rotatably connected between the front and rear inner walls of the U-shaped frame 1. A conveyor belt 4 is wound around the two driving rollers 3 together. A mounting frame 14 is fixedly connected to the rear side of the U-shaped frame 1. A driving motor 15 is mounted on the mounting frame 14. The output of the driving motor 15 extends to the inside of the U-shaped frame 1 and is fixedly connected to the rear end of the front driving roller 3; Among them, a lifting mechanism is further included. The lifting mechanism includes an L-shaped plate 6 fixedly connected to the upper end of the U-shaped frame 1. A hydraulic telescopic rod 18 is mounted on the upper end of the L-shaped plate 6. The telescopic end of the hydraulic telescopic rod 18 penetrates through the L-shaped plate 6 and is fixedly connected to a rectangular bar 19. Two vertical plates 20 are symmetrically and fixedly connected to the lower end of the rectangular bar 19. A cavity 33 is arranged inside the rectangular bar 19. A plurality of liquid holes 34 are opened at the inner bottom of the cavity 33; Among them, a glue injection mechanism is further included. The glue injection mechanism cooperates with the lifting mechanism to realize quantitative gluing of the cardboard. The glue injection mechanism includes a first piston cylinder 23 fixedly connected to the upper end of the horizontal part of the L-shaped plate 6. A second piston cylinder 24 is fixedly connected to the lower end of the horizontal part of the L-shaped plate 6. The upper end of the first piston cylinder 23 is communicated. The upper and lower ends of the second piston cylinder 24 are both sealed. A first piston plate 25 that can slide up and down is arranged inside the first piston cylinder 23. A second piston plate 27 that can slide up and down is arranged inside the second piston cylinder 24. The lower end of the second piston plate 27 is elastically connected to the inner bottom of the second piston cylinder 24 through a spring 29. An L-shaped rod 21 is fixedly connected to the upper end of the rectangular bar 19. The vertical part of the L-shaped rod 21 penetrates through the horizontal part of the L-shaped plate 6 and is slidably connected. The other end of the L-shaped rod 21 is fixedly connected to a connecting rod 22. The other end of the connecting rod 22 is fixedly connected to the upper end of the first piston plate 25. A glue box 7 is mounted on the front side of the U-shaped frame 1. A through hole 13 is opened at the inner top of the glue box 7. The inner top space of the second piston cylinder 24 is communicated with the inner bottom space of the first piston cylinder 23 through a one-way port 26. The inner bottom space of the first piston cylinder 23 is communicated with the inner bottom space of the glue box 7 through a first one-way pipe 12. The inner top space of the second piston cylinder 24 is communicated with the cavity 33 through a release pipe 28. An electromagnetic valve 31 is installed in the release pipe 28. When the hydraulic telescopic rod 18 extends to the maximum length, the two vertical plates 20 contact the cardboard. At this time, the electromagnetic valve 31 is opened, and the glue is released and discharged from the plurality of liquid holes 34. A heating plate 32 is mounted on the inner bottom of the glue box 7, and glue is arranged inside the glue box 7; Among them, it further includes a colloid flow mechanism, which is used to promote the flow of the colloid and ensure uniform temperature of the glue solution. The colloid flow mechanism includes a rotating shaft 16 rotatably connected between the front and rear inner walls of the glue tank 7. A plurality of stirring rods 17 are fixedly connected to the outer side of the rotating shaft 16 at equal intervals. The front end of the rotating shaft 16 extends to the outside. A transmission 8 is fixedly connected to the front side of the U-shaped frame 1. The transmission 8 uses an accelerator. The input shaft of the transmission 8 is fixedly connected to the rotating shaft of the right transmission roller 3. Transmission wheels 10 are installed on the output shaft of the transmission 8 and the front end of the rotating shaft 16 respectively. The two transmission wheels 10 are connected by a transmission belt 9; Among them, the inner bottom space of the second piston cylinder 24 is communicated with the outside through a second one-way pipe 30, and the inner bottom space of the second piston cylinder 24 is communicated with the inner bottom space of the glue tank 7 through a third one-way pipe 11. In this way, gas can be continuously introduced into the glue solution to further promote the flow of the glue solution. Check valves are installed inside the first one-way pipe 12, the second one-way pipe 30, the third one-way pipe 11 and the one-way port 26. The flow direction of the check valve inside the first one-way pipe 12 is from the glue tank 7 into the inner top space of the first piston cylinder 23 unidirectionally. The flow direction of the check valve inside the second one-way pipe 30 is from the outside into the inner bottom space of the second piston cylinder 24 unidirectionally. The flow direction of the check valve inside the third one-way pipe 11 is from the inner bottom space of the second piston cylinder 24 into the inside of the glue tank 7 unidirectionally. The flow direction of the check valve inside the one-way port 26 is from top to bottom.

[0023] In the present invention, when the drive motor 15 on the mounting frame 14 is started, the conveyor belt 4 can be driven to move by the rotation of the transmission roller 3, so as to realize the conveyance of the cardboard on the conveyor belt 4, and enable the cardboard to enter the subsequent gluing process according to the set process. While the drive motor 15 drives the transmission roller 3 to rotate, the input shaft of the transmission 8 is driven to rotate through the transmission device. The transmission 8 uses an accelerator, and its output shaft and the transmission wheel 10 at the front end of the rotating shaft 16 are connected by a transmission belt 9, so as to drive the rotating shaft 16 to rotate. A plurality of stirring rods 17 are fixedly connected to the outer side of the rotating shaft 16 at equal intervals. When the rotating shaft 16 rotates, the stirring rods 17 stir the glue solution in the glue tank 7, so that the glue solution flows continuously, avoiding the solidification of the glue solution, and at the same time promoting the uniform temperature of the glue solution; In the initial state, when the device is not performing glue coating operation, the first piston plate 25 and the second piston plate 27 are respectively located at the initial positions in the first piston cylinder 23 and the second piston cylinder 24 (at this time, the bottom of the first piston cylinder 23 is filled with post-curing glue), the spring 29 is in a natural state, the solenoid valve 31 is closed. When the hydraulic telescopic rod 18 extends to push the vertical plate 20 to contact the cardboard box, the rectangular strip 19 drives the L-shaped rod 21 to move downward. The L-shaped rod 21 pushes the first piston plate 25 to move downward in the first piston cylinder 23 through the connecting rod 22. At this time, the glue is pressed into the second piston cylinder 24, and the second piston plate 27 moves downward and compresses the spring 29. When the hydraulic telescopic rod 18 extends to its maximum length and the vertical plate 20 contacts the cardboard box, the solenoid valve 31 is opened. Since the inner top space of the second piston cylinder 24 is communicated with the cavity 33 in the rectangular strip 19 through the release pipe 28, and a plurality of liquid holes 34 are opened at the inner bottom of the cavity 33, under the elastic action of the spring 29, the second piston plate 27 moves upward. The glue in the inner top space of the second piston cylinder 24 enters the cavity 33 through the release pipe 28 and is discharged from the plurality of liquid holes 34, and is evenly applied to the cardboard box to achieve quantitative glue coating; After the glue coating is completed, the hydraulic telescopic rod 18 contracts, driving the rectangular strip 19, the L-shaped rod 21, the connecting rod 22 and the first piston plate 25 to move upward. The upward movement of the first piston plate 25 generates a negative pressure in the first piston cylinder 23, and this negative pressure can supplement the glue to the inner bottom space of the first piston cylinder 23 through the first one-way pipe 12; Furthermore, during the reciprocating up and down movement of the second piston plate 27, air is injected into the inner bottom of the glue tank 7 by utilizing the cooperation of the second one-way pipe 30 and the third one-way pipe 11 to promote the further flow of the glue.

[0024] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present application are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0025] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A gluing device for carton processing with automatic loading and unloading, characterized in that: include: U-shaped frame (1); A conveying mechanism, the conveying mechanism comprising two transmission rollers (3) rotatably connected between front and rear inner walls of a U-shaped frame (1), a conveying belt (4) being wound around the two transmission rollers (3), and a mounting frame (14) being fixedly connected to the rear side of the U-shaped frame (1); A lifting mechanism, the lifting mechanism comprising an L-shaped plate (6) fixedly connected to the upper end of the U-shaped frame (1), a hydraulic telescopic rod (18) being installed at the upper end of the L-shaped plate (6), the telescopic end of the hydraulic telescopic rod (18) passing through the L-shaped plate (6) and fixedly connected to a rectangular bar (19), the lower end of the rectangular bar (19) being symmetrically fixedly connected to two vertical plates (20), a cavity (33) being provided in the rectangular bar (19), and a plurality of liquid holes (34) being provided at the inner bottom of the cavity (33); A glue injection mechanism, which cooperates with the lifting mechanism to achieve quantitative glue coating on the carton board; The colloid flow mechanism is used to promote the flow of the colloid and ensure that the temperature of the colloid liquid is uniform.

2. The automatic loading and unloading carton processing gluing device according to claim 1 is characterized in that: A plurality of support frames (2) are installed at the lower end of the U-shaped frame (1), and connecting plates (5) are fixedly connected to both sides of the U-shaped frame (1).

3. The automatic loading and unloading carton processing gluing device according to claim 1 is characterized in that: A drive motor (15) is mounted on the mounting frame (14), and an output of the drive motor (15) extends to the inner side of the U-shaped frame (1) and is fixedly connected to the rear end of the front drive roller (3).

4. The automatic loading and unloading carton processing gluing device according to claim 1 is characterized in that: The glue injection mechanism comprises a first piston cylinder (23) fixedly connected to the upper end of the horizontal portion of the L-shaped plate (6); the lower end of the horizontal portion of the L-shaped plate (6) is fixedly connected to the second piston cylinder (24); the upper end of the first piston cylinder (23) is conductive; the upper and lower ends of the second piston cylinder (24) are sealed; a first piston plate (25) which can slide up and down is arranged in the first piston cylinder (23); a second piston plate (27) which can slide up and down is arranged in the second piston cylinder (24); the lower end of the second piston plate (27) is elastically connected to the inner bottom of the second piston cylinder (24) through a spring (29); the upper end of the rectangular strip (19) is fixedly connected to an L-shaped rod (21); the vertical portion of the L-shaped rod (21) passes through the horizontal portion of the L-shaped plate (6) and is slidably connected; the other end of the L-shaped rod (21) is fixedly connected to a connecting rod (22); the other end of the connecting rod (22) is fixedly connected to the upper end of the first piston plate (25).

5. The automatic loading and unloading carton processing gluing device according to claim 4 is characterized in that: A rubber box (7) is installed on the front side of the U-shaped frame (1); a through hole (13) is opened at the inner top of the rubber box (7); the inner top space of the second piston cylinder (24) is connected to the inner bottom space of the first piston cylinder (23) through a one-way port (26); the inner bottom space of the first piston cylinder (23) is connected to the inner bottom space of the rubber box (7) through a first one-way tube (12); the inner top space of the second piston cylinder (24) is connected to the cavity (33) through a release tube (28); and a solenoid valve (31) is installed in the release tube (28).

6. The automatic loading and unloading carton processing gluing device according to claim 5 is characterized in that: A heating plate (32) is installed on the inner bottom of the glue box (7), and glue is provided inside the glue box (7).

7. The automatic loading and unloading carton processing gluing device according to claim 1 is characterized in that: The colloid flow mechanism comprises a rotating shaft (16) rotatably connected between the front and rear inner walls of the glue box (7), a plurality of stirring rods (17) are fixedly connected at equal intervals to the outside of the rotating shaft (16), and the front end of the rotating shaft (16) extends to the outside.

8. The automatic loading and unloading carton processing gluing device according to claim 7 is characterized in that: A transmission (8) is fixedly connected to the front side of the U-shaped frame (1); an input shaft of the transmission (8) is fixedly connected to the rotating shaft of the right transmission roller (3); a transmission wheel (10) is installed at the front end of the output shaft of the transmission (8) and the rotating shaft (16); and the two transmission wheels (10) are connected in transmission via a transmission belt (9).

9. The automatic loading and unloading carton processing gluing device according to claim 5 is characterized in that: The inner bottom space of the second piston cylinder (24) is in communication with the outside world via a second one-way tube (30), and the inner bottom space of the second piston cylinder (24) is in communication with the inner bottom space of the rubber box (7) via a third one-way tube (11).

10. The automatic loading and unloading carton processing gluing device according to claim 9 is characterized in that: One-way valves are installed inside the first one-way tube (12), the second one-way tube (30), the third one-way tube (11) and the one-way port (26). The one-way valve inside the first one-way tube (12) flows in a direction from the rubber box (7) to the top space inside the first piston cylinder (23). The one-way valve inside the second one-way tube (30) flows in a direction from the outside to the bottom space inside the second piston cylinder (24). The one-way valve inside the third one-way tube (11) flows in a direction from the bottom space inside the second piston cylinder (24) to the inside of the rubber box (7). The one-way valve inside the one-way port (26) flows from top to bottom.

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