Gluing device for printing and packaging production

Abstract

The invention discloses a gluing device for printing and packaging production, and relates to the technical field of printing and packaging production. The conveying belt is mounted at the top of the base; the supporting frame is fixed to the top of the base and extends to the position above the conveying belt. The glue coating roller assembly is rotatably mounted on the supporting frame and is used for coating the glue solution on the packaging paper; the air guide assembly is rotatably mounted in the glue spreading roller assembly and is fixedly connected with the supporting frame; a glue scraping assembly; the cleaning device firstly scrapes the glue outlet of the glue spraying head when the glue spreading roller assembly rotates, glue liquid accumulated at the glue outlet of the glue spraying head is scraped and cleaned, the situation that the glue liquid accumulated at the glue outlet is too much, and consequently the glue spraying head is blocked is avoided, meanwhile, the cleaning device is driven to knock the glue scraping assembly when the glue spreading roller assembly rotates, and the glue spraying head is scraped. And the glue solution of the glue scraping assembly and the cleaning device falls and flows.

Description

Technical Field

[0001] The invention relates to the technical field of printing and packaging production, and in particular to a gluing device used in printing and packaging production. Background Art

[0002] During the printing and packaging production process of products, it is necessary to apply glue to the surface of the packaged products. In the prior art, when applying glue to the products, the glue liquid is usually placed in a glue liquid tank, and a special glue-applying roller is movably placed inside the glue liquid tank, and the special glue-applying roller is driven to rotate by a driving motor. After the surface of the special glue-applying roller contacts the glue liquid, the glue liquid adheres to its surface, and as the special glue-applying roller rotates, the glue will be smeared on the surface of the product.

[0003] When gluing the surface of the packaged products, there will be a pause between every two packaged products to replace the packaged products to be glued. However, during the pause, the glue will accumulate at the glue spray head and gradually solidify over time, causing the glue spray head to be blocked.

[0004] Therefore, it is necessary to invent a gluing device for printing and packaging production to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a gluing device for printing and packaging production, so as to solve the problem proposed in the above background technology that when gluing the surface of a packaging product, there will be a pause between every two packaging products to replace the glued packaging products, but during the pause, the glue liquid will accumulate at the glue spray head and gradually solidify over time, causing the glue spray head to be blocked.

[0006] To achieve the above object, the present invention provides the following technical solution: a gluing device for printing and packaging production, comprising: Base; A conveyor belt mounted on the top of the base; A support frame, which is fixed to the top of the base and extends above the conveyor belt; A glue coating roller assembly, which is rotatably mounted on the support frame and applies glue liquid on the packaging paper; An air guide assembly, which is rotatably mounted in the glue coating roller assembly and fixedly connected to the support frame; A glue scraping assembly, which is fixed on the support frame and adjusts the thickness of the glue according to the distance between the glue scraping assembly and the glue roller assembly, and discharges the excess glue; A glue spray head, wherein a plurality of the glue spray heads are arranged and fixed on the support frame in a transverse arrangement, and the glue is applied to the glue coating roller assembly; A cleaning device, which is rotatably mounted on the support frame and rotates when the glue roller assembly is started to scrape off the glue on the glue spray head and knock the glue scraping assembly; The air blowing device provides air flow to the interior of the air guide component and cleans the glue on the scraper component at the same time.

[0007] Optionally, the support frame includes: Support plates, two of which are provided and fixed respectively at the top ends of the base; A top plate, wherein the support plate is fixed on the top of the support plate and is fixedly connected to the glue spraying head; The mounting bracket is provided with two mounting brackets and is fixed on the right side of the supporting plate.

[0008] Optionally, the glue coating roller assembly includes: A roller body, wherein the roller body is rotatably mounted between two support plates; A flow guiding space, which is opened inside the roller body and ensures the normal flow of gas; An exhaust head, which is disposed on the end surface of the roller body and is connected to the flow guide space; A driving motor, the main shaft of which is connected to one end of the roller body; A receiving sleeve is fixed on the inner wall of the flow guiding space.

[0009] Optionally, the air guide component includes: A plug connector, which can be rotatably inserted into the interior of the receiving sleeve; An air guide joint, which is fixed on one side of the plug joint and extends to the outside of the roller body and is fixedly connected to the support plate; A plurality of air guide holes are provided, and the air guide holes are arranged in a circular array on the outside of the air guide joint.

[0010] Optionally, the scraper assembly includes: An inclined scraper, which is arranged on the upper outer side of the roller body and scrapes off the excess glue on the roller body; A hanging plate, which is fixed to a side of the inclined scraper away from the roller body and extends downward to be fixedly connected to a mounting bracket below; A V-shaped guide plate is fixed on the lower side of the hanging plate.

[0011] Optionally, the scraper assembly further includes: A glue storage box, wherein two glue storage boxes are provided and are respectively fixed at two ends of the bottom of the glue storage box; The L-shaped plate is fixed on the top of the glue storage box and extends to one side of the glue scraping assembly.

[0012] Optionally, the cleaning device comprises: A rotating shaft, the rotating shaft being rotatably mounted on an upper mounting bracket; A scraper assembly, wherein the scraper assembly is fixed to the outside of the rotating shaft and contacts the glue spraying head and the roller body; A guide device, wherein the guide device is connected to the rotating shaft and the glue coating roller assembly; A coil spring, wherein two ends of the coil spring are respectively fixedly connected to the rotating shaft and the upper mounting bracket.

[0013] Optionally, the scraper assembly includes: A swing head, wherein the swing head is fixed on the outer side of the rotating shaft; A plug-in groove, wherein the plug-in groove is provided on one side of the swing head; A sliding plug, which can be slidably inserted into the interior of the plug-in groove; A compression spring, the two ends of which are respectively fixedly connected to the sliding plug and the inner wall of the plug-in groove; A scraping head is fixed on the outer side of the sliding plug and contacts with the glue spraying head and the roller body.

[0014] Optionally, the guiding device includes: A gear, wherein the gear is sleeved on the outer side of the main shaft of the driving motor; An incomplete gear is fixed to the end of the rotating shaft and is connected to the gear transmission.

[0015] Optionally, the blowing device comprises: air pump; A first pipeline, wherein two ends of the first pipeline are respectively connected to the air pump and the air guide joint; A heater, wherein the heater is fixed to the middle portion of the outer side of the first pipe; A second pipeline, the second pipeline is fixed to the outside of the air pump and fixedly connected to the hanging plate; The nozzles are provided in two groups and are fixed on the outside of the second pipe and arranged obliquely.

[0016] Technical effects and advantages of the present invention: 1. The present invention uses a cleaning device to first scrape the glue outlet of the glue spray head when the glue coating roller assembly rotates, and then scrapes off and cleans the glue liquid accumulated at the glue outlet of the glue spray head to avoid excessive accumulation of glue liquid at the glue outlet, which causes blockage of the glue spray head. At the same time, when the glue coating roller assembly rotates, the cleaning device is also driven to knock the scraping assembly, so that the glue liquid in the scraping assembly and the cleaning device falls and flows.

[0017] 2. The present invention scrapes off the excess glue on the glue coating roller assembly by means of the setting of the glue scraping assembly, and guides the scraped glue by means of the inclined setting.

[0018] 3. The present invention heats the flowing airflow by setting a heater, so that the airflow heats the roller body when entering the guide space, thereby preventing the glue on the outside of the roller body from solidifying when the roller body rotates or stops rotating, thereby affecting the normal gluing of the roller body on the packaged product.

[0019] 4. The present invention drives the incomplete gear and the scraper assembly to rotate when the gear and the incomplete gear are disengaged through the setting of the coil spring, and drives the gear and the incomplete gear to mesh again, so that the scraper assembly swings back and forth to continuously knock on the L-shaped plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the scraper assembly of the present invention; Figure 3 It is a schematic diagram of the exhaust head structure of the present invention; Figure 4 This is a schematic diagram of the structure of the glue coating roller assembly of the present invention; Figure 5 This is a schematic diagram of the structure of the gas guide assembly of the present invention; Figure 6 It is a schematic diagram of the structure of the cleaning device of the present invention; Figure 7 It is a schematic diagram of the coil spring structure of the present invention.

[0021] In the figure: 100, base; 200, conveyor belt; 300, support frame; 310, support plate; 320, top plate; 330, mounting bracket; 400, glue coating roller assembly; 410, roller body; 420, flow guide space; 430, exhaust head; 440, drive motor; 450, receiving sleeve; 500, air guide assembly; 510, plug connector; 520, air guide connector; 530, air guide through hole; 600, glue scraping assembly; 610, inclined scraper; 620, hanging plate; 630, V-shaped guide plate; 640, glue storage box; 650, L-shaped plate; 700, glue spray head; 800, cleaning device; 810, rotating shaft; 820, scraper assembly; 821, swing head; 822, plug-in groove; 823, sliding plug; 824, compression spring; 825, scraper head; 830, guide device; 831, gear; 832, incomplete gear; 840, coil spring; 900, air blowing device; 910, air pump; 920, first pipeline; 930, heater; 940, second pipeline; 950, nozzle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The present invention provides Figure 1-7 A gluing device for printing and packaging production is shown, comprising: Base 100; A conveyor belt 200, wherein the conveyor belt 200 is installed on the top of the base 100; A support frame 300, the support frame 300 is fixed to the top of the base 100 and extends above the conveyor belt 200; The glue coating roller assembly 400 is rotatably mounted on the support frame 300 and applies glue on the packaging paper; An air guide assembly 500, which is rotatably mounted in the glue coating roller assembly 400 and fixedly connected to the support frame 300; The glue scraping assembly 600 is fixed on the support frame 300, and adjusts the thickness of the glue according to the distance between the glue scraping assembly 400 and the glue roller assembly 400, and discharges the excess glue; Glue spraying head 700, there are multiple glue spraying heads 700, which are arranged horizontally and fixed on the support frame 300, and apply glue on the glue coating roller assembly 400; The cleaning device 800 is rotatably mounted on the support frame 300 and rotates when the glue roller assembly 400 is started to scrape the glue on the glue spray head 700 and knock the glue scraping assembly 600; The air blowing device 900 provides airflow to the interior of the air guide assembly 500 and cleans the glue on the scraper assembly 600 at the same time.

[0024] The conveyor belt 200 is driven to rotate by a motor, so that the conveyor belt 200 drives the packaged product to move, so that the packaged product passes through the glue coating roller assembly 400, and the glue coating roller assembly 400 is driven to rotate at the same time, so that the glue coating roller assembly 400 will transport the glue sprayed by the glue spray head 700 to the packaged product; When the glue roller assembly 400 rotates, the cleaning device 800 is driven to rotate at the same time, so that the cleaning device 800 scrapes the glue liquid from the glue outlet of the glue spray head 700 and makes the glue liquid fall on the scraping glue assembly 600, and at the same time knocks the scraping glue assembly 600 to make the local structure of the scraping glue assembly 600 vibrate, thereby accelerating the flow of the glue liquid; when the glue roller assembly 400 rotates, the scraping glue assembly 600 will scrape off the excess glue liquid on the outside of the glue roller assembly 400 and guide it; The air blowing device 900 is started to generate wind force to push the glue liquid on the scraping assembly 600 to flow, and part of the wind force is heated and transported to the inside of the glue coating roller assembly 400 to heat the glue coating roller assembly 400; The glue spray head 700 is connected to the glue storage box and transports the glue liquid through the pump body, and the glue spray head 700 is located at the front side of the glue spray head 700; Among them, when the glue coating roller assembly 400 rotates, the cleaning device 800 will first scrape the glue outlet of the glue spray head 700 to scrape and clean the glue accumulated at the glue outlet of the glue spray head 700 to avoid excessive glue accumulation at the glue outlet, which will cause the glue spray head 700 to be blocked. At the same time, when the glue coating roller assembly 400 rotates, the cleaning device 800 will also be driven to knock the scraping assembly 600, so that the glue in the scraping assembly 600 and the cleaning device 800 will fall and flow; The scraping assembly 600 is used to scrape off excess glue on the glue coating roller assembly 400, and the scraped glue is guided by the inclined setting.

[0025] In some embodiments of the present invention, the support frame 300 includes: Support plates 310, two support plates 310 are provided and are respectively fixed at two ends of the top of the base 100; The top plate 320 is fixed on the top of the support plate 310 and is fixedly connected to the glue spray head 700; The mounting bracket 330 is provided with two mounting brackets 330 and is fixed on the right side of the supporting plate 310 .

[0026] The support plate 310 is provided to support the top plate 320 and ensure the height of the top plate 320, while ensuring the normal installation of the glue coating roller assembly 400 and the air guide assembly 500; The top plate 320 is provided to ensure the fixation of the glue spray head 700; The installation bracket 330 is used to ensure the normal installation and use of the scraper assembly 600 and the cleaning device 800.

[0027] In some embodiments of the present invention, the glue roller assembly 400 includes: A roller body 410, the roller body 410 is rotatably installed between the two support plates 310; A flow guiding space 420 is provided inside the roller body 410 and ensures the normal flow of gas; An exhaust head 430, which is disposed on the end surface of the roller body 410 and communicates with the flow guide space 420; A driving motor 440, wherein the main shaft of the driving motor 440 is connected to one end of the roller body 410; The receiving sleeve 450 is fixed on the inner wall of the flow guiding space 420 .

[0028] The heated airflow enters the interior of the flow guiding space 420 through the air guiding assembly 500, flows in the interior of the flow guiding space 420 to heat the roller body 410, and then is discharged through the exhaust head 430; When the driving motor 440 is started, the driving motor 440 drives the roller 410 to rotate, so that the roller 410 applies the glue on the packaged product. At the same time, a ratchet is arranged between the driving motor 440 and the roller 410, so that the driving motor 440 can drive the roller 410 to rotate toward the glue scraping assembly 600, and the driving motor 440 cannot drive the roller 410 to rotate normally when driving in the reverse direction. The flow guiding space 420 is provided to ensure the normal flow of the airflow, and the roller body 410 is heated during the flow to prevent the glue from solidifying on the outer side of the roller body 410; The exhaust head 430 can be used to discharge the airflow inside the flow guide space 420; The receiving sleeve 450 is connected to the air guide assembly 500 through its arrangement, and supports the roller body 410 , so that the roller body 410 can rotate normally relative to the air guide assembly 500 .

[0029] In some embodiments of the present invention, the air guide component 500 includes: The plug connector 510 is rotatably inserted into the receiving sleeve 450; An air guide connector 520, which is fixed to one side of the plug connector 510 and extends to the outside of the roller body 410 and is fixedly connected to the support plate 310; A plurality of air guiding holes 530 are provided and arranged in a circular array on the outside of the air guiding joint 520 .

[0030] The plug connector 510 is inserted into the receiving sleeve 450, and the gas generated by the blowing device 900 is transported to the inside of the flow guiding space 420 through the air guiding connector 520 and the air guiding through hole 530; The plug connector 510 cooperates with the receiving sleeve 450 so that the air guide assembly 500 can support the roller body 410 without affecting the rotation of the roller body 410. The air guide joint 520 and the air guide through hole 530 are matched to be connected with the pipeline of the blowing device 900 , and the generated airflow is transported to the inside of the guide space 420 .

[0031] In some embodiments of the present invention, in order to clean the glue liquid remaining in the glue spray head 700, the scraper assembly 600 is arranged on the front side of the bottom of the glue spray head 700 and installed on the support plate 310, and the scraper assembly 600 includes: An inclined scraper 610 is disposed on the upper outer side of the roller body 410 and scrapes off excess glue on the roller body 410; A hanging plate 620, which is fixed to a side of the inclined scraper plate 610 away from the roller body 410, and extends downward to be fixedly connected to the lower mounting bracket 330; The V-shaped guide plate 630 is fixed to the lower side of the hanging plate 620 .

[0032] The excess glue liquid is scraped off by the inclined scraper 610, and the scraped glue liquid is guided by the inclined setting; The V-shaped guide plate 630 is normally installed and fixed by setting the hanging plate 620; Among them, the V-shaped guide plate 630 is set to guide the fallen glue to both ends, and the guiding speed can be accelerated by vibration. At the same time, the V-shaped guide plate 630 can generate slight vibration relative to the hanging plate 620, and will not cause the inclined scraper 610 to vibrate at the same time.

[0033] In some embodiments of the present invention, the scraper assembly 600 further includes: The glue storage box 640 is provided with two glue storage boxes 640, and is respectively fixed at two ends of the bottom of the glue storage box 640; The L-shaped plate 650 is fixed on the top of the glue storage box 640 and extends to one side of the glue scraping assembly 600 .

[0034] When the roller body 410 rotates, the excess glue of the roller body 410 will contact the inclined scraper 610, and the excess glue will be scraped off and directed to the inside of the glue storage box 640 through the V-shaped guide plate 630 for storage; The glue storage box 640 is provided to store the glue liquid, which is convenient for the subsequent processing of the glue liquid and prevents the glue liquid from flowing around and causing dirt and difficulty in cleaning; The L-shaped plate 650 is extended upward and contacts the cleaning device 800, so that the cleaning device 800 can continuously strike the L-shaped plate 650 to drive the V-shaped guide plate 630 to vibrate.

[0035] In some embodiments of the present invention, the cleaning device 800 includes: A rotating shaft 810, the rotating shaft 810 is rotatably mounted on the upper mounting bracket 330; A scraper assembly 820, the scraper assembly 820 is fixed to the outside of the rotating shaft 810 and contacts the glue spraying head 700 and the roller body 410; A guide device 830, the guide device 830 is connected to the rotating shaft 810 and the glue coating roller assembly 400; The coil spring 840 has two ends fixedly connected to the rotating shaft 810 and the upper mounting bracket 330 respectively, so that the rotating shaft 810 and the scraper assembly 820 rotate synchronously.

[0036] When the driving motor 440 is started, the guiding device 830 is driven to rotate, so that the guiding device 830 drives the scraper assembly 820 and the rotating shaft 810 to rotate, and the glue liquid of the glue spraying head 700 and the roller body 410 is scraped off and dropped onto the V-shaped guide plate 630. At the same time, when the rotating shaft 810 rotates, the coil spring 840 is driven to store force. When the guiding device 830 stops transmitting, the scraper assembly 820 and the rotating shaft 810 are driven to reset. The arrangement of the rotating shaft 810 can ensure the normal installation of the scraper assembly 820 and drive the scraper assembly 820 to rotate, so that the scraper assembly 820 collides with the L-shaped plate 650 and scrapes off the glue.

[0037] In some embodiments of the present invention, the scraper assembly 820 includes: A swing head 821, the swing head 821 is fixed on the outer side of the rotating shaft 810; A plug-in groove 822, which is provided on one side of the swing head 821; A sliding plug 823, which can be slidably inserted into the plug-in groove 822; A compression spring 824, two ends of which are fixedly connected to the sliding plug 823 and the inner wall of the plug-in groove 822 respectively; The scraper head 825 is fixed to the outside of the sliding plug 823 and contacts the glue spraying head 700 and the roller body 410 .

[0038] When the scraper assembly 820 rotates, the scraper head 825 will move toward the inside of the plug-in groove 822 under the pressure of the glue spraying head 700 and the roller body 410, and press the compression spring 824, so that the compression spring 824 is compressed and stored, and when the glue spraying head 700 and the roller body 410 are offset from the scraper head 825, the elastic force of the compression spring 824 will be released, so that the compression spring 824 pushes the scraper head 825 to move and reset; The swing head 821 is connected and fixed to the rotating shaft 810, so that the guide device 830 drives the scraper head 825 to rotate and adjust the position under the drive of the driving motor 440; Among them, through the matching arrangement of the plug-in groove 822 and the sliding plug 823, the swing head 821 can normally drive the scraper head 825 to rotate, and at the same time guide the sliding of the scraper head 825 to prevent the scraper head 825 from deflecting under the action of external force; The compression spring 824 can compress and store force when the scraper head 825 slides, providing space for the sliding plug 823 to slide. At the same time, when the scraper head 825 is blocked, the compression spring 824 will push the scraper head 825 to slide, so that the scraper head 825 returns to its original position. The scraper head 825 is set with an inclined surface so that it can slide normally under the action of the inclined surface when it is squeezed by the glue spraying head 700 and the roller body 410, and cooperate with the swing head 821 to knock the L-shaped plate 650, so that the L-shaped plate 650 vibrates.

[0039] In some embodiments of the present invention, the guiding device 830 includes: Gear 831, gear 831 is sleeved on the outer side of the main shaft of the driving motor 440; The incomplete gear 832 is fixed to the end of the rotating shaft 810 and is in transmission connection with the gear 831 .

[0040] When the driving motor 440 is started, the gear 831 is driven to rotate, so that the gear 831 meshes with the incomplete gear 832 and drives the swing head 821 to rotate, and the L-shaped plate 650 is knocked, and the coil spring 840 is driven to store force. When the L-shaped plate 650 is knocked, the gear 831 is disengaged from the incomplete gear 832, and the coil spring 840 drives the incomplete gear 832 and the swing head 821 to reset, so that the gear 831 meshes with the incomplete gear 832 again, and drives the swing head 821 to knock the L-shaped plate 650. After the driving motor 440 is turned off, the coil spring 840 drives the swing head 821 to reset, so that the incomplete gear 832 rotates in the opposite direction and the driving gear 831 rotates in the opposite direction at the same time. Among them, the setting of the coil spring 840 drives the incomplete gear 832 and the scraper assembly 820 to rotate when the gear 831 and the incomplete gear 832 are disengaged, and drives the gear 831 and the incomplete gear 832 to mesh again, so that the scraper assembly 820 swings back and forth to continuously hit the L-shaped plate 650.

[0041] In some embodiments of the present invention, the blowing device 900 includes: Air pump 910; A first pipeline 920, two ends of which are respectively connected to the air pump 910 and the air guide joint 520; A heater 930, the heater 930 is fixed at the middle of the outer side of the first pipe 920; A second pipeline 940, the second pipeline 940 is fixed to the outside of the air pump 910 and is fixedly connected to the hanging plate 620; The nozzle 950 is provided in two groups and is fixed on the outside of the second pipe 940 and is arranged obliquely.

[0042] The air pump 910 is started to generate wind power, and the airflow is transported to the inside of the nozzle 950 and the air guide joint 520 through the first pipe 920 and the second pipe 940. The nozzle 950 is tilted so that the airflow is ejected to push the glue to move, and another airflow is heated by the heater 930 and enters the inside of the air guide joint 520. The coil spring 840 drives the incomplete gear 832 and the scraper assembly 820 to rotate when the gear 831 and the incomplete gear 832 are disengaged, and the gear 831 and the incomplete gear 832 are meshed and driven again, so that the scraper assembly 820 swings back and forth to continuously knock the L-shaped plate 650; The heater 930 can heat the passing airflow; The airflow is ejected through the setting of the nozzle 950, and the nozzle 950 is tilted to have the same tilt angle as the V-shaped guide plate 630, so that the airflow can push the glue coating to slide normally.

[0043] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0044] 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, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to 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 device for printing and packaging production, characterized in that: include: base(100); A conveyor belt (200), wherein the conveyor belt (200) is installed on the top of the base (100); A support frame (300), the support frame (300) being fixed on the top of the base (100) and extending above the conveyor belt (200); A glue coating roller assembly (400), the glue coating roller assembly (400) is rotatably mounted on the support frame (300) and applies glue liquid on the packaging paper; An air guide assembly (500), the air guide assembly (500) being rotatably mounted in the glue coating roller assembly (400) and fixedly connected to the support frame (300); A glue scraping assembly (600), wherein the glue scraping assembly (600) is fixed on the support frame (300), and adjusts the thickness of the glue according to the distance between the glue scraping assembly and the glue roller assembly (400), and discharges excess glue; A glue spraying head (700), wherein a plurality of the glue spraying heads (700) are provided and are arranged transversely and fixed on the support frame (300), and apply glue on the glue coating roller assembly (400); a cleaning device (800), the cleaning device (800) being rotatably mounted on the support frame (300) and rotating when the glue coating roller assembly (400) is started, scraping off the glue coating on the glue spraying head (700) and knocking the glue scraping assembly (600); An air blowing device (900) is provided to provide airflow to the interior of the air guide assembly (500) and to clean the glue coating on the glue scraping assembly (600) at the same time.

2. The gluing device for printing and packaging production according to claim 1 is characterized in that: The support frame (300) comprises: A support plate (310), wherein two support plates (310) are provided and are respectively fixed to two ends of the top of the base (100); A top plate (320), the support plate (310) being fixed on the top of the support plate (310) and fixedly connected to the glue spraying head (700); A mounting bracket (330) is provided in two pieces and is fixed on the right side of the support plate (310).

3. The gluing device for printing and packaging production according to claim 2 is characterized in that: The glue coating roller assembly (400) comprises: A roller body (410), wherein the roller body (410) is rotatably mounted between two support plates (310); A flow guiding space (420), wherein the flow guiding space (420) is provided inside the roller body (410) and ensures normal flow of gas; An exhaust head (430), wherein the exhaust head (430) is disposed on an end surface of the roller body (410) and is connected to the flow guide space (420); A driving motor (440), wherein a main shaft of the driving motor (440) is connected to one end of the roller body (410); A receiving sleeve (450), wherein the receiving sleeve (450) is fixed on the inner wall of the flow guide space (420).

4. The gluing device for printing and packaging production according to claim 3 is characterized in that: The air guide component (500) comprises: A plug connector (510), wherein the plug connector (510) is rotatably inserted into the interior of the receiving sleeve (450); An air guide joint (520), the air guide joint (520) being fixed to one side of the plug joint (510) and extending to the outside of the roller body (410) to be fixedly connected to the support plate (310); A plurality of air guide through holes (530) are provided, and the air guide through holes (530) are provided in a ring-shaped array on the outside of the air guide joint (520).

5. The gluing device for printing and packaging production according to claim 3 is characterized in that: The scraper assembly (600) comprises: An inclined scraper (610), wherein the inclined scraper (610) is arranged on the upper outer side of the roller body (410) and scrapes off excess glue on the roller body (410); A hanging plate (620), the hanging plate (620) being fixed to a side of the inclined scraper plate (610) away from the roller body (410), and extending downward to be fixedly connected to a mounting bracket (330) below; A V-shaped guide plate (630) is fixed to the lower side of the hanging plate (620).

6. The gluing device for printing and packaging production according to claim 5 is characterized in that: The scraper assembly (600) further includes: A glue storage box (640), wherein two glue storage boxes (640) are provided and are respectively fixed at two ends of the bottom of the glue storage box (640); An L-shaped plate (650) is fixed on the top of the glue storage box (640) and extends to one side of the glue scraping assembly (600).

7. The gluing device for printing and packaging production according to claim 4 is characterized in that: The cleaning device (800) comprises: A rotating shaft (810), the rotating shaft (810) being rotatably mounted on the upper mounting bracket (330); A scraper assembly (820), wherein the scraper assembly (820) is fixed to the outside of the rotating shaft (810) and is in contact with the glue spraying head (700) and the roller body (410); A guiding device (830), wherein the guiding device (830) is connected to the rotating shaft (810) and the glue coating roller assembly (400); A coil spring (840), wherein two ends of the coil spring (840) are respectively fixedly connected to the rotating shaft (810) and the upper mounting bracket (330).

8. The gluing device for printing and packaging production according to claim 7 is characterized in that: The scraper assembly (820) comprises: A swing head (821), wherein the swing head (821) is fixed on the outside of the rotating shaft (810); An inserting groove (822), wherein the inserting groove (822) is provided on one side of the swing head (821); A sliding plug (823), wherein the sliding plug (823) can be slidably inserted into the interior of the plug-in groove (822); A compression spring (824), wherein two ends of the compression spring (824) are respectively fixedly connected to the sliding plug (823) and the inner wall of the plug-in groove (822); A scraper head (825) is fixed on the outside of the sliding plug (823) and is in contact with the glue spraying head (700) and the roller body (410).

9. The gluing device for printing and packaging production according to claim 7, characterized in that: The guiding device (830) comprises: A gear (831), wherein the gear (831) is sleeved on the outer side of the main shaft of the driving motor (440); An incomplete gear (832), wherein the incomplete gear (832) is fixed to the end of the rotating shaft (810) and is transmission-connected to the gear (831).

10. The gluing device for printing and packaging production according to claim 5, characterized in that: The blowing device (900) comprises: Air pump (910); A first pipeline (920), wherein two ends of the first pipeline (920) are respectively connected to the air pump (910) and the air guide component (500); a heater (930), wherein the heater (930) is fixed at the middle portion of the outer side of the first pipe (920); A second pipeline (940), the second pipeline (940) being fixed to the outside of the air pump (910) and fixedly connected to the hanging plate (620); The nozzles (950) are provided in two groups and are fixed on the outside of the second pipe (940) and arranged obliquely.

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