A double rubber roller synchronous paper box gluing and box sticking processing device

Abstract

The utility model provides a kind of double rubber roller synchronous gluing carton sticking box processing device, belong to carton processing technical field, including scraping glue mechanism, it includes double roller machine and scraping knife, the lower end both sides of scraping knife are slidably provided with a plurality of scraper blade for the glue roller glue scraping removal outside paper shell width, the lower end of scraper blade is provided with the transmission assembly for driving scraper blade relative movement, transmission assembly middle part is provided with the first limiting component for the fixed limit after the movement of scraper blade;Cleaning mechanism, including the glue scraping plate for the excess glue cleaning when scraper blade returns, glue scraping plate is provided with the second limiting component for the turnover limiting of glue scraping plate.The utility model can flexibly adjust scraper blade position according to paper shell width, accurately scrape the excess glue on glue roller beyond paper shell width, realize glue recycling, not only avoid the excess glue drop pollution equipment or stain paper shell, reduce the product quality problem caused by bonding misplacement, save production cost.

Description

Technical Field

[0001] This utility model belongs to the field of carton processing technology, specifically relating to a dual-roller synchronous gluing carton gluing processing device. Background Technology

[0002] The dual-roller synchronous gluing carton gluing device is a piece of equipment used in carton production to apply glue to the bonding areas of the cardboard shell. The glue rollers of the dual-roller machine pick up glue and transfer it to the surface of the cardboard shell. The glue application amount is controlled by the glue scraping mechanism to ensure the firmness and consistency of the carton bonding.

[0003] In actual production, due to the difference in the width of the paperboards to be processed, excess glue will remain on the part of the glue roller that exceeds the width of the paperboard. This glue is easy to drip and contaminate the equipment table or adhere to the paperboards in non-bonding areas, resulting in paperboard damage or misalignment, which affects product quality. At the same time, after long-term glue scraping, residual glue will remain on the surface of the glue scraping parts (such as the scraper blade). The accumulation of residual glue will change the scraping gap, reduce the scraping accuracy, and the residual glue is difficult to clean after it hardens, requiring frequent machine shutdowns for maintenance, which increases production costs and downtime. Utility Model Content The purpose of this invention is to provide a dual-roller synchronous gluing and bonding device for cartons, which aims to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A dual-roller synchronous gluing carton gluing processing device includes a scraping mechanism, which includes a dual-roller machine and a scraping blade. The scraping blade has several scraping blades slidably arranged on both sides of its lower end for scraping off the glue from the rollers beyond the width of the cardboard. The lower end of each scraping blade is provided with a transmission component for driving the relative movement of the scraping blades. The middle of the transmission component is provided with a first limiting component for fixing and limiting the movement of the scraping blades. The cleaning mechanism includes a scraper for cleaning residual adhesive when the scraper blade returns, and the scraper is provided with a second limiting component for flipping and limiting the scraper.

[0005] As a preferred embodiment of this utility model, the transmission assembly includes a flat rope belt disposed on the inner side of the lower surface of a plurality of scraper blades and used to connect the plurality of scraper blades in series. Racks for pulling the two ends of the flat rope belt to move relative to each other are fixedly connected to opposite sides of the flat rope belt. The tooth ends of the racks are arranged opposite each other and a gear is meshed between the two racks. The central shaft of the gear is movably disposed through the middle of the inner wall of the lower end cavity of the scraper blade, and a knob is fixedly disposed at one end of the central shaft of the gear that passes through the inner wall of the lower end cavity of the scraper blade.

[0006] As a preferred embodiment of this utility model, each rack has a T-shaped slide bar of equal length fixedly provided on its back side, and each T-shaped slide bar has a T-shaped groove slidably connected to the outside of the T-shaped slide bar and the inner side of the upper and lower end surfaces of the scraper blade cavity.

[0007] As a preferred embodiment of the present invention, the first limiting component includes a ratchet fixedly disposed between the knob and the outer wall of the scraper, and the ratchet is provided with a pawl.

[0008] As a preferred embodiment of this utility model, the scraper blade is provided with vertical recycling bins on both sides for storing the scraper blade. The upper end of the inner cavity of the vertical recycling bin is rotatably provided with a roller that abuts against the lower surface of the flat rope. The middle part of the roller is rotatably connected to the scraper blade at one end of the inner cavity of the vertical recycling bin.

[0009] As a preferred embodiment of this utility model, the second limiting component includes a tension spring fixedly disposed at the lower front end of the scraper plate for pulling the scraper plate downward to reset.

[0010] As a preferred embodiment of the present invention, the second limiting component further includes a limiting rod fixedly disposed at the rear end of the scraper blade. The end of the limiting rod away from the scraper blade is slidably provided with an arc-shaped groove opened on the outside of the scraper blade. The arc-shaped groove is used to limit the limiting rod and thus limit the rotation angle between the roller and the scraper blade.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The relative movement of the doctor blade is driven by the transmission component, and the position of the doctor blade can be flexibly adjusted according to the width of the cardboard. It can accurately scrape off the excess glue on the glue roller that exceeds the width of the cardboard. At the same time, the beveled design at the lower end of the doctor blade can make the scraped glue flow back to the glue box, realizing glue recycling. This not only avoids excess glue dripping and contaminating the equipment or damaging the cardboard, reducing product quality problems caused by misalignment of the glue, but also reduces glue consumption and saves production costs.

[0012] 2. The scraper in the cleaning mechanism automatically cleans the residual adhesive on the scraper blade surface when the scraper blade returns. In conjunction with the second limit component, it ensures that the scraper blade is stably attached to the scraper blade, effectively preventing the accumulation of residual adhesive from changing the scraping gap. This function reduces the need for frequent machine shutdowns for cleaning due to the curing of residual adhesive, reduces manual maintenance costs, and ensures the long-term stability of scraping accuracy, thereby improving overall production efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic front view of the present invention. Figure 2 This is a rear view and a schematic diagram showing the position of the glue scraper of this utility model; Figure 3 This is a cross-sectional view of the right scraper blade position structure of this utility model; Figure 4 This is an enlarged schematic diagram of the connection structure between the right side and the scraper blade of this utility model; Figure 5 This is a schematic diagram showing the positions of the transmission component and the second limiting component of this utility model; Figure 6 This is a cross-sectional schematic diagram of the middle transmission component and the first limiting component of this utility model; Figure 7 This is a cross-sectional view of the left scraper blade position structure of this utility model.

[0014] In the diagram: 10. Double roller machine; 11. Scraper blade; 12. Scraper blade; 13. Transmission assembly; 131. Flat rope; 132. Rack; 133. Gear; 134. Knob; 135. T-shaped slide bar; 136. T-shaped slide groove; 14. First limiting assembly; 141. Ratchet; 142. Pad; 15. Vertical recovery bin; 16. Roller; 20. Scraper plate; 21. Second limiting assembly; 211. Tension spring; 212. Limiting rod; 213. Arc groove. Detailed Implementation

[0015] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model; however, this utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0016] Example 1 Reference Figures 1 to 7This is the first embodiment of the present invention, which provides a dual-roller synchronous gluing carton gluing device, including a scraping mechanism, comprising a dual-roller machine 10 and a scraping blade 11. The scraping blade 11 has several scraping blades 12 slidably disposed on both sides of its lower end for scraping glue off the width of the cardboard. Each scraping blade 12 has a transmission assembly 13 at its lower end for driving relative movement of the scraping blades 12. The transmission assembly 13 includes a flat rope 131 disposed on the inner side of the lower surface of the several scraping blades 12 and used to connect the several scraping blades 12 in series. The flat rope 131 has sections on opposite sides of its surface. A rack 132 is fixedly connected to the two flat ropes 131 at both ends for relative movement. The teeth of the rack 132 are arranged opposite each other and a gear 133 is meshed between the two racks. The central shaft of the gear 133 is movably installed through the middle of the inner wall of the lower end of the scraper blade 11. A knob 134 is fixedly installed at one end of the central shaft of the gear 133 through the inner wall of the lower end of the scraper blade 11. T-shaped slide rods 135 of equal length are fixedly installed on the back of the rack 132. T-shaped slide grooves 136 are slidably connected to the outside of the T-shaped slide rods 135, which are opened on the inner side of the upper and lower end surfaces of the inner cavity of the scraper blade 11.

[0017] The bottom surface of the inner cavity at the lower end of the scraper blade 12 is set as an inclined surface that slopes towards the glue box, so that the scraped glue can flow back into the glue box through the inclined surface. The rack 132 located at the lower part has a vertical fixing rod at the end away from the gear 133, which is fixedly connected to the flat rope 131. The flat rope 131 can connect several scraper blades 12 on both sides in series. When the connected scraper blades 12 are in a horizontal state, each scraper blade 12 is tightly attached to each other, thereby achieving a cleaner cleaning of the surface of the glue roller in the twin-roller machine 10.

[0018] Specifically, the transmission assembly 13 is provided with a first limiting assembly 14 for fixing and limiting the movement of the scraper blade 12. The first limiting assembly 14 includes a ratchet 141 fixedly disposed between the knob 134 and the outer wall of the scraper blade 11. A pawl 142 is provided on the ratchet 141. A counterweight is fixedly disposed at the lower end of one end of the flat rope 131 located in the inner cavity of the vertical recovery chamber 15, thereby assisting the flat rope 131 in driving the scraper blade 12 back into the vertical recovery chamber 15.

[0019] The scraper blade 11 has vertical recycling bins 15 on both sides for storing the scraper blade 12. The upper end of the inner cavity of the vertical recycling bin 15 is rotatably equipped with a roller 16 that abuts against the lower surface of the flat rope 131. The middle part of the roller 16 is rotatably connected to one end of the scraper blade 20 located in the inner cavity of the vertical recycling bin 15.

[0020] The roller 16 allows the scraper blade 12 to slide out of the vertical recovery bin 15 and change direction to scrape off the glue from the surface of the rubber roller in the double roller machine 10. The surface of the roller 16 is rough to increase the friction with the flat rope 131. The ratchet 141 is fixedly connected to the knob 134 and the gear 133. The ratchet 141 and the pawl 142 cooperate to limit the gear 133, thereby fixing the scraper blade 12 after it moves to the designated position. This prevents the scraper blade 12 from changing position due to reverse tension or vibration.

[0021] When in use, if it is necessary to adjust the position of the scraper blade 12 according to the width of the cardboard to match the corresponding glue application distance, the operator can turn the knob 134. The rotation of the knob 134 will drive the gear 133 fixedly connected to it to rotate synchronously. Since the gear 133 meshes with the racks 132 on both sides and the tooth ends of the racks 132 are set opposite to each other, the rotation of the gear 133 will cause the racks 132 on both sides to move relative to each other. When the rack 132 moves, the T-shaped slide bar 135 on the back of the rack 132 slides in the T-shaped slide groove 136 inside the scraper blade 11, thereby ensuring that the rack 132 moves in a straight line stably. At the same time, the rack 132 pulls the flat rope 131 that is fixedly connected to it, and the flat rope 131 drives the several scraper blades 12 connected together to move relative to each other.

[0022] During this process, since the flat rope 131 connects the scraper blades 12 on both sides in series, and the connected scraper blades 12 are tightly attached when in a horizontal state, the scraper blades 12 on both sides will slide out from the vertical recovery chamber 15. During the sliding process, the roller 16 at the upper end of the inner cavity of the vertical recovery chamber 15 abuts against the lower surface of the flat rope 131, which not only helps the scraper blades 12 to slide out smoothly, but also allows the scraper blades 12 to change direction and act on the surface of the rubber roller in the twin-roller machine 10 at a suitable angle. When the scraper blade 12 moves to the appropriate position, the first limiting component 14 begins to function. The ratchet 141 and pawl 142 between the knob 134 and the outer wall of the scraper blade 11 cooperate with each other to limit the gear 133, preventing the gear 133 from rotating in the opposite direction, thereby fixing the position of the scraper blade 12 and avoiding changes in position due to reverse pulling force or vibration. When scraping off the glue on the surface of the glue roller, the inclined surface of the bottom of the inner cavity of the scraper blade 12 will cause the scraped glue to flow back into the glue box along the inclined surface, realizing the recycling of glue. When it is necessary to retract the scraper blade 12 into the vertical recycling bin 15, the pawl 142 can be operated to separate from the ratchet 141, and then the knob 134 can be rotated in the opposite direction. At the same time, the counterweight block at the lower end of the flat rope 131 in the inner cavity of the vertical recycling bin 15 will generate a downward pulling force, which will help the flat rope 131 drive the scraper blade 12 back into the vertical recycling bin 15 to complete the storage.

[0023] Example 2 Reference Figures 1-7 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a cleaning mechanism for a dual-roller synchronous gluing carton gluing device, which solves the problem of glue residue during the return stroke of the scraper blade. It includes a cleaning mechanism, which includes a scraper blade 20 for cleaning residual glue when the scraper blade 12 returns. The scraper blade 20 is provided with a second limiting component 21 for flipping and limiting the scraper blade 20. The second limiting component 21 includes a tension spring 211 fixedly disposed at the lower front end of the scraper blade 20 for pulling the scraper blade 20 down to reset. The second limiting component 21 also includes a limiting rod 212 fixedly disposed at the rear end of the scraper blade 20. The end of the limiting rod 212 away from the scraper blade 20 is slidably provided with an arc-shaped groove 213 opened on the outside of the roller 16 of the scraper blade 12. The arc-shaped groove 213 is used to limit the limiting rod 212 and thus limit the flipping angle between the roller 16 and the scraper blade 20.

[0024] Specifically, the front end of the scraper 20 is triangular. The tilt angle of the scraper 20 allows it to contact the surface of the scraper blade 12 not covered by the flat rope 131. Because the scraper 20 is rotatably connected to the roller 16, and the contact angle between the roller 16 and the flat rope 131 is greater than 120 degrees, when the flat rope 131 moves towards the center, it can cause the front end of the scraper 20 to flip downwards, preventing the scraper 20 from contacting the surface of the scraper blade 12. However, when the flat rope 131 returns, it will cause the scraper 20 to flip in the opposite direction through the roller 16, so that the upper acute angle of the scraper 20 continuously contacts the lower surface of the scraper blade 12, thereby scraping off the residual glue on the surface of the scraper blade 12. At the same time, the arc length of the arc groove 213 is set according to the moving distance of the scraper 20, thereby limiting the flipping of the scraper 20.

[0025] When the device is in normal glue application operation, as the flat rope 131 moves towards the center, it drives the roller 16 that is in contact with it to move synchronously. Since the roller 16 is rotatably connected to the scraper 20 and the contact surface between the two is greater than 120 degrees, under the pushing force of the flat rope 131, the scraper 20 will rotate downward with the connection point with the roller 16 as the axis. At this time, the tension spring 211 in the second limiting component 21 is compressed and stores elastic potential energy, while the limiting rod 212 slides along the arc groove 213 to one end, so that the triangular structure at the front end of the scraper 20 is separated from the contact with the surface of the scraper blade 12, avoiding interference with the normal operation of the scraper blade 12 during the glue application process, and ensuring that the scraper blade 12 can smoothly complete the glue application operation on the glue roller. When the flat rope 131 completes its adhesive application stroke and begins to return, its direction of movement changes, and the force exerted on the roller 16 also reverses. At this time, the tension spring 211 releases its elastic potential energy, pulling down the front end of the scraper 20. Combined with the reverse thrust of the flat rope 131 on the roller 16, the scraper 20 is rotated in the opposite direction around the connection point. During this process, the limiting rod 212 slides along the arc groove 213 to the other end. The length of the arc groove 213 limits the sliding distance of the limiting rod 212, so that the scraper 20 can stably clean the lower surface of the scraper blade 12 without lifting the scraper blade 12 and the flat rope 131 due to excessive rotation angle. As the scraper 20 flips in the opposite direction, the acute angle of the upper end of the triangular structure at the front end of the scraper 20 gradually comes into contact with the area on the lower surface of the scraper blade 12 that is not covered by the flat rope 131. This contact is maintained as the flat rope 131 continues to return. Since the tilt angle design of the front end of the scraper 20 is just right to match the surface curvature of the scraper blade 12, it can fit tightly against the lower surface of the scraper blade 12, thereby completely scraping away the glue residue on the scraper blade 12 during the glue application process. The cleaned-off glue will slide off due to gravity or the tilt angle of the scraper 20, avoiding accumulation on the surface of the scraper blade 12. After the flat rope 131 returns to its original position, the scraper 20 returns to its initial position under the tension of the tension spring 211, and the limit rod 212 also returns to the initial end of the arc groove 213, preparing for the next glue application and cleaning cycle. Through this linkage mechanism, the problem of glue residue during the return of the scraper 20 is effectively solved, ensuring the cleanliness of the scraper blade 12 and the accuracy of subsequent glue application operations.

[0026] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A dual-roller synchronous gluing and bonding device for cartons, characterized in that: include, The glue scraping mechanism includes a double roller machine (10) and a glue scraper (11). The glue scraper (11) has several scraper blades (12) slidably arranged on both sides of its lower end for scraping glue off the glue roller beyond the width of the paper shell. The lower end of each scraper blade (12) is provided with a transmission component (13) for driving the relative movement of the scraper blade (12). The middle of the transmission component (13) is provided with a first limiting component (14) for fixing and limiting the movement of the scraper blade (12). The cleaning mechanism includes a scraper (20) for cleaning residual adhesive when the scraper blade (12) returns, and the scraper (20) is provided with a second limiting component (21) for flipping and limiting the scraper (20).

2. The dual-roller synchronous gluing carton gluing device according to claim 1, characterized in that: The transmission assembly (13) includes a flat rope (131) disposed on the inner side of the lower surface of a plurality of scraper blades (12) and used to connect the plurality of scraper blades (12) in series. On the opposite side surface of the flat rope (131), racks (132) for pulling the two flat ropes (131) to move relative to each other are fixedly connected. The teeth of the racks (132) are arranged opposite to each other and a gear (133) meshes between the two racks (132). The central shaft of the gear (133) is movably disposed through the middle of the inner wall of the lower end cavity of the scraper blade (11), and a knob (134) is fixedly disposed at one end of the central shaft of the gear (133) that passes through the inner wall of the lower end cavity of the scraper blade (11).

3. The dual-roller synchronous gluing cardboard box gluing device according to claim 2, characterized in that: Each rack (132) has a T-shaped slide bar (135) of equal length fixedly installed on its back side. Each T-shaped slide bar (135) has a T-shaped groove (136) slidably connected to the outside of the T-shaped slide bar (135) and the inner side of the upper and lower end surfaces of the inner cavity of the scraper (11).

4. The dual-roller synchronous gluing carton gluing device according to claim 1, characterized in that: The first limiting component (14) includes a ratchet (141) fixedly disposed between the knob (134) and the outer wall of the scraper (11), and a pawl (142) is provided on the ratchet (141).

5. The dual-roller synchronous gluing carton gluing device according to claim 1, characterized in that: The scraper blade (11) is provided with vertical recycling bins (15) on both sides for storing the scraper blade (12). The upper end of the inner cavity of the vertical recycling bin (15) is rotatably provided with a roller (16) that abuts against the lower surface of the flat rope (131). The middle part of the roller (16) is rotatably connected to the scraper blade (20) at one end of the inner cavity of the vertical recycling bin (15).

6. The dual-roller synchronous gluing carton gluing device according to claim 1, characterized in that: The second limiting component (21) includes a tension spring (211) fixedly disposed at the lower front end of the scraper (20) for pulling the scraper (20) down to reset.

7. The dual-roller synchronous gluing carton gluing device according to claim 6, characterized in that: The second limiting component (21) also includes a limiting rod (212) fixedly disposed at the rear end of the scraper (20). The end of the limiting rod (212) away from the scraper (20) is slidably provided with an arc-shaped groove (213) opened on the outside of the scraper blade (12) located on the roller (16). The arc-shaped groove (213) is used to limit the limiting rod (212) and thus limit the rotation angle between the roller (16) and the scraper (20).

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