A quality detection device for a manual corrugated paper case gluing machine

Abstract

The application discloses a quality detection equipment for a manual corrugated paper box gluing machine, and relates to the technical field of automatic detection equipment, which comprises a rack, a conveying frame, a deformation detection mechanism and a gluing detection mechanism. The output end of a gas cylinder drives a lifting plate to lift, and the curved top of the top bridge cooperates with the self-gravity of the corrugated paper box, so that the corrugated paper box is in a two-side inclined state and is positioned. The box cover edge of the corrugated paper sheet is pressed and deformed under the common pushing of the two top pressing elastic plates above and below in the material passing channel. The distance between the surface paper of the corrugated paper box and the infrared distance meter at this time is recorded. After the gluing amount detection is completed, the output end of the gas cylinder resets and returns, and the infrared distance meter can perform distance measurement on the corrugated paper box that restores to the flat plate state and automatically rebounds the corrugated paper. Therefore, timely detection on whether the corrugated paper box is deformed is realized. The gluing amount of all the glued corrugated paper boxes can be comprehensively detected.

Description

Technical Field

[0001] This invention relates to the field of automated testing equipment technology, specifically to a quality testing device for a manual corrugated cardboard gluing machine. Background Technology

[0002] Corrugated cardboard is a sheet-like material made of face paper, liner paper, and corrugated core paper formed by corrugating rollers. It has advantages such as low cost, light weight, easy processing, high strength, excellent printability, and convenient storage and handling, and is generally used as outer packaging for transport. Currently, manual corrugated cardboard gluing machines are commonly used for gluing corrugated cardboard boxes. This involves manually folding the edges of the corrugated cardboard sheets, which are then conveyed to the gluing area by a conveyor belt. Glue is applied to the overlapping edges. During the operation of a manual corrugated cardboard gluing machine, factors such as the glue application location and amount, and the degree of core paper deformation, are crucial to the quality of the cardboard box.

[0003] However, after long-term use, the existing technology still has certain drawbacks, such as: First, when the corrugated cardboard is manually pushed into the gluing machine after folding, the edge of the box lid often collides with the guide inlet, causing deformation or even partial folding. Although the connection between the box lid and the box body has a certain buffering capacity to offset some of the deformation impact, there is still a risk of deformation for the exposed corrugated core paper at the edge of the corrugated cardboard. Second, the glue application position and amount of the overlapping edge of the corrugated cardboard box cannot be fully inspected. The existing technology can usually only conduct quality inspection by sampling, which may result in missed inspections. If too much glue is applied, it will cause glue to overflow, affecting the appearance of the cardboard box and may also cause the cardboard box to deform during the drying process. If too little glue is applied, it may affect the bonding strength. Summary of the Invention

[0004] The purpose of this invention is to provide a quality inspection device for a manual corrugated cardboard gluing machine, so as to solve the above-mentioned defects caused by the prior art.

[0005] A quality inspection device for a manual corrugated cardboard gluing machine includes a frame, a conveyor frame, a deformation detection mechanism, and a glue application detection mechanism. The conveyor frame is located in the middle of the frame, and the upper part of the conveyor frame has two symmetrical material feeding channels. The deformation detection mechanism is installed on the frame and is used to detect the deformation and springback of the core paper of the corrugated cardboard box. The glue application detection mechanism is installed on the deformation detection mechanism and is used to detect the glue adhesion of the tongue and edge of the corrugated cardboard box.

[0006] Preferably, the deformation detection mechanism includes a cylinder, a hinge frame, and an infrared rangefinder. The cylinder is mounted on the frame, and a lifting plate is installed at the output end of the cylinder. A lower pressure ball is fixedly installed on the lifting plate, and a connecting rod is connected to the side end of the lifting plate. The two ends of the connecting rod are slidably mounted on the hinge frame. A flip plate is symmetrically hinged to the top of the hinge frame, and a connecting rod is rotatably mounted in the middle of the hinge frame. The other end of the connecting rod is movably mounted in the middle of the flip plate. Upper pressure balls are fixedly installed on both sides of the flip plate. The lower and upper pressure balls are symmetrically slidably mounted in the material passage. Symmetrically mounted pressure springs are detachably installed in the material passage. The upper pressure ball abuts against the upper pressure spring, and the lower pressure ball abuts against the lower pressure spring. A visible opening is provided on the pressure spring. The infrared rangefinder is slidably mounted on both sides of the material passage via a sliding member, and a spring is sleeved on the outer side of the material passage on the sliding member.

[0007] Preferably, the glue-applying detection mechanism includes a top bridge, a drive motor, and a sensor module. The top bridge is installed in the middle of the lifting plate, and an arc-shaped groove is opened on the top bridge in the direction of the conveying path of the corrugated cardboard box. The drive motor is installed on the side of the top bridge, and vibrating wheels are evenly distributed on the output shaft of the drive motor. The vibrating wheels are placed in the arc-shaped groove. The sensor module is installed on the upper end of the lifting plate, and an alarm is electrically connected inside the sensor module.

[0008] Preferably, the top pressure spring plate cooperates with the sliding member.

[0009] Preferably, the moving distance of the infrared rangefinder is consistent with the moving distance of the corrugated cardboard box's face paper.

[0010] Preferably, the outer edge of the vibrating wheel extends beyond the top of the arc-shaped groove.

[0011] Preferably, there is no rigid contact between the sensor module and the material feeding channel.

[0012] Preferably, the sensor module is aligned horizontally with the flap of the corrugated cardboard box.

[0013] The advantages of this invention are:

[0014] By setting up deformation detection mechanism and glue application detection mechanism on the frame, the output end of the cylinder drives the lifting plate to rise. Under the action of the curved top of the top bridge and the self-weight of the corrugated carton, the corrugated carton is tilted on both sides and positioned. Under the joint push of the two top pressure spring plates above and below in the material passage, the edge of the carton cover of the corrugated paper sheet is deformed by pressure. The distance between the face paper of the corrugated carton and the infrared rangefinder is recorded at this time. After the glue application amount is detected, the output end of the cylinder returns to the original position. The infrared rangefinder can then measure the distance again of the corrugated carton that has returned to the flat state and the corrugated core paper has automatically rebounded. This enables timely detection of whether the corrugated carton has deformed.

[0015] The output of the drive motor drives the vibrating wheels in each arc groove to rotate synchronously, which agitates the bottom of the corrugated cardboard box, which is tilted on the top bridge, creating a vibration effect. The corresponding sensor module on the side detects this vibration in time. If the amount of glue applied to the glued tongue of the corrugated cardboard box is insufficient, it will open and close at high frequency. If the amount of glue applied is too much, glue will be squeezed out on the outside of the tongue. This allows for comprehensive detection of the amount of glue applied to the entire corrugated cardboard box after it has been glued. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the deformation detection mechanism in this invention (without a corrugated cardboard box).

[0018] Figure 3 This is an enlarged view of the structure at point A in this invention.

[0019] Figure 4 This is a schematic diagram of the assembly of the adhesive detection mechanism and the material conveying channel in this invention.

[0020] Figure 5 This is an enlarged view of the structure at point B in this invention.

[0021] Figure 6 This is a bottom view of the material passage in this invention.

[0022] Figure 7 This is a schematic diagram showing the state of the glue coating detection mechanism and the corrugated cardboard box in this invention.

[0023] Figure 8 This is a side view of a portion of the internal structure of the deformation detection mechanism in this invention (without the push-up and pressing spring plate).

[0024] Figure 9 This is a side view of the internal structure of the deformation detection mechanism in this invention (top-pushing and pressing spring plate state).

[0025] Among them, 1-frame; 2-conveyor frame; 3-deformation detection mechanism; 4-glue detection mechanism; 5-material passage; 6-corrugated carton; 301-cylinder; 302-hinged frame; 303-infrared rangefinder; 304-lifting plate; 305-lower top pressure ball; 306-connecting rod; 307-flipping plate; 308-connecting rod; 309-upper top pressure ball; 310-top pressure spring plate; 311-visible opening; 312-sliding component; 313-spring; 401-top bridge; 402-drive motor; 403-sensor module; 404-arc groove; 405-vibration wheel. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0027] like Figures 1 to 9 As shown, a quality inspection device for a manual corrugated cardboard gluing machine includes a frame 1, a conveyor frame 2, a deformation detection mechanism 3, and a glue application detection mechanism 4. The conveyor frame 2 is located in the middle of the frame 1, and the upper part of the conveyor frame 2 has two symmetrical material passages 5. The deformation detection mechanism 3 is installed on the frame 1 and is used to perform deformation and springback detection on the core paper of the corrugated cardboard box 6. The glue application detection mechanism 4 is installed on the deformation detection mechanism 3 and is used to perform glue application detection on the tongue edge of the corrugated cardboard box 6.

[0028] In this embodiment, the deformation detection mechanism 3 includes a cylinder 301, a hinge frame 302, and an infrared rangefinder 303. The cylinder 301 is mounted on the frame 1. A lifting plate 304 is mounted on the output end of the cylinder 301. A downward pressing ball 305 is fixedly mounted on the lifting plate 304. A connecting rod 306 is connected to the side end of the lifting plate 304. The two ends of the connecting rod 306 are slidably mounted on the hinge frame 302. A flip plate 307 is symmetrically hinged to the top of the hinge frame 302. A connecting rod 308 is rotatably mounted in the middle of the hinge frame 302. The other end of the connecting rod 308 is movably mounted in the middle of the flip plate 307. The upper pressure ball 309 is fixedly installed on both sides of the flip plate 307. The lower pressure ball 305 and the upper pressure ball 309 are symmetrically slidably installed in the material passage 5. The material passage 5 is detachably installed with symmetrically arranged pressure spring plates 310. The upper pressure ball 309 abuts against the upper pressure spring plate 310, and the lower pressure ball 305 abuts against the lower pressure spring plate 310. The pressure spring plate 310 has a visible opening 311. The infrared rangefinder 303 is slidably installed on both sides of the material passage 5 through the sliding member 312. The sliding member 312 is fitted with a spring 313 on the outside of the material passage 5.

[0029] It should be noted that the test path of the infrared rangefinder 303 is placed within the visible opening 311, that is, the infrared rangefinder 303 outputs its data to the face paper of the corrugated cardboard box 6 without obstruction.

[0030] In this embodiment, the glue-applying detection mechanism 4 includes a top bridge 401, a drive motor 402, and a sensor module 403. The top bridge 401 is installed in the middle of the lifting plate 304, and an arc-shaped groove 404 is provided on the top bridge 401 in the direction of the conveying path of the corrugated cardboard box 6. The drive motor 402 is installed on the side end of the top bridge 401, and vibrating wheels 405 are evenly distributed on the output shaft of the drive motor 402. The vibrating wheels 405 are placed in the arc-shaped groove 404. The sensor module 403 is installed on the upper end of the lifting plate 304, and an alarm is electrically connected inside the sensor module 403.

[0031] It should be noted that the sensor module 403 is a high-sensitivity vibration sensor, specifically the SW-1801P model, used to monitor the vibration at the flap edge of the corrugated cardboard box.

[0032] In this embodiment, the top pressure plate 310 cooperates with the sliding member 312, so that after the top pressure plate 310 is bent by force, the top pressure plate 310 located outside the material passage 5 can push the sliding member 312 to slide inward.

[0033] In this embodiment, the moving distance of the infrared rangefinder 303 is consistent with the moving distance of the face paper of the corrugated cardboard box 6, so as to ensure that the front and rear test points of the infrared rangefinder 303 do not change.

[0034] In this embodiment, the outer edge of the vibrating wheel 405 extends beyond the top of the arc-shaped groove 404.

[0035] Furthermore, there is no rigid contact between the sensor module 403 and the material feeding channel 5, and the sensor module 403 is aligned with the tongue edge of the corrugated cardboard box 6 in the horizontal direction.

[0036] Working process and principle: This invention is placed after the gluing processing position of the manual corrugated cardboard gluing machine. During use, the quality of the glued corrugated cardboard is directly inspected. Specifically, the glued corrugated cardboard box 6 enters from one side of the two material passages 5 until it reaches the gluing position of the overlapping edge of the corrugated cardboard box and is directly above the top bridge 401. Then, the cylinder 301 is activated so that its output end drives the lifting plate 304 to lift. Under the combined action of the curved top of the top bridge 401 and the gravity of the corrugated cardboard box 6, the corrugated cardboard box 6 is in a tilted state on both sides, and the lower pressure ball 305 on the lifting plate 304 directly pushes the lower pressure spring plate 310 in the material passage 5.

[0037] Simultaneously, the lifting plate 304 will drive the connecting rod 306 to lift synchronously, thereby pulling the two hinged frames 302 together. The connecting rod 308 will pull the two flip plates 307 at the top to flip downward, thereby driving the upper pressure ball 309 to directly push the upper pressure spring plate 310 in the material passage 5. Under the joint push of the two upper and lower pressure spring plates 310 in the material passage 5, the edge of the corrugated cardboard box cover is deformed by pressure. At this time, the pressure spring plate 310 outside the material passage 5 pushes the sliding piece 312 to slide inward, the spring 313 is compressed by force, and the infrared rangefinders 303 on the upper and lower sides pass through the visible opening 311 to record the distance S1 between the face paper of the corrugated cardboard box 6 and the infrared rangefinder 303.

[0038] Simultaneously, the drive motor 402 is started so that its output end drives the vibration wheel 405 in each arc groove 404 to rotate synchronously, thereby agitating the bottom of the corrugated cardboard box 6, which is tilted on the top bridge 401, to create a vibration effect, which is then detected in time by the corresponding sensor module 403 on the side.

[0039] After the glue application amount is detected, the cylinder 301 is restarted to reset its output end. After the above operation is reversed, the top bridge 401 loses its support for the corrugated carton 6, causing it to return to a flat state for continued conveying. At the same time, the top pressure plate 310 loses its pressure effect on the corrugated carton 6, causing its corrugated core paper to automatically spring back. Under the elastic force of the spring 313, the infrared rangefinder 303 can measure the distance S2 of the corrugated carton 6 again after it returns to a flat state. The difference between the current test distance S2 and the previous test distance S1 can be used to measure the springback effect of the corrugated core paper. The smaller the difference, the better the springback effect. Finally, the corrugated carton 6 is discharged from the outlet of the material passage 5.

[0040] Based on the above, the present invention sets a deformation detection mechanism 3 and a glue application detection mechanism 4 on the frame 1. The output end of the cylinder 301 drives the lifting plate 304 to be lifted. Under the action of the curved top of the top bridge 401 and the self-weight of the corrugated carton 6, the corrugated carton 6 is in a tilted state on both sides and positioned. Under the joint push of the two top pressure spring plates 310 at the top and bottom in the material passage 5, the edge of the box cover of the corrugated paper sheet is deformed by pressure. The distance between the face paper of the corrugated carton 6 and the infrared rangefinder 303 is recorded at this time. After the glue application amount is detected, the output end of the cylinder 301 is reset and returned. The infrared rangefinder 303 can measure the distance of the corrugated carton 6 again after it returns to the flat state and the corrugated core paper automatically rebounds. In this way, the deformation of the corrugated carton 6 can be detected in time.

[0041] The output of the drive motor 402 drives the vibrating wheels 405 in each arc groove 404 to rotate synchronously, which agitates the bottom of the corrugated cardboard box 6, which is tilted on the top bridge 401, to create a vibration effect. The corresponding sensor module 403 on the side detects this in time. If the amount of glue applied to the glued tongue edge of the corrugated cardboard box is insufficient, it will exhibit a high-frequency opening and closing state. If the amount of glue applied is too much, glue will be squeezed out on the outside of the tongue edge, thereby achieving comprehensive detection of the amount of glue applied to the corrugated cardboard box 6 after all glue is applied.

[0042] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A quality inspection device for a manual corrugated cardboard gluing machine, characterized in that, The system includes a frame (1), a conveyor frame (2), a deformation detection mechanism (3), and a glue application detection mechanism (4). The conveyor frame (2) is located in the middle of the frame (1), and the upper part of the conveyor frame (2) has two symmetrical material passages (5). The deformation detection mechanism (3) is installed on the frame (1) and is used to detect the deformation and rebound of the core paper of the corrugated cardboard box (6). The glue application detection mechanism (4) is installed on the deformation detection mechanism (3) and is used to detect the glue adhesion of the tongue edge of the corrugated cardboard box (6). The deformation detection mechanism (3) includes a cylinder (301), a hinge frame (302), and an infrared rangefinder (303). The cylinder (301) is mounted on the frame (1). A lifting plate (304) is installed at the output end of the cylinder (301). A lower pressure ball (305) is fixedly installed on the lifting plate (304). A connecting rod (306) is connected to the side end of the lifting plate (304). The two ends of the connecting rod (306) are slidably mounted on the hinge frame (302). A flip plate (307) is symmetrically hinged to the top of the hinge frame (302). A connecting rod (308) is rotatably mounted in the middle of the hinge frame (302). The other end of the connecting rod (308) is movably mounted in the middle of the flip plate (307). Upper pressure balls (309) are fixedly installed on both sides of the rotating plate (307). The lower pressure balls (305) and the upper pressure balls (309) are symmetrically slidably installed in the material passage (5). The material passage (5) is detachably installed with symmetrically arranged pressure spring plates (310). The upper pressure balls (309) abut against the upper pressure spring plate (310), and the lower pressure balls (305) abut against the lower pressure spring plate (310). The pressure spring plate (310) has a visible opening (311). The infrared rangefinder (303) is slidably installed on both sides of the material passage (5) through the sliding member (312). The sliding member (312) is fitted with a spring (313) on the outside of the material passage (5). The top pressure plate (310) cooperates with the sliding member (312); The moving distance of the infrared rangefinder (303) is consistent with the moving distance of the face paper of the corrugated cardboard box (6).

2. The quality inspection equipment for a manual corrugated cardboard gluing machine according to claim 1, characterized in that: The glue-coating detection mechanism (4) includes a top bridge (401), a drive motor (402), and a sensor module (403). The top bridge (401) is installed in the middle of the lifting plate (304). An arc-shaped groove (404) is provided on the top bridge (401) in the direction of the conveying path of the corrugated cardboard box (6). The drive motor (402) is installed on the side of the top bridge (401). Vibration wheels (405) are evenly distributed on the output shaft of the drive motor (402). The vibration wheels (405) are placed in the arc-shaped groove (404). The sensor module (403) is installed on the upper end of the lifting plate (304). An alarm is electrically connected inside the sensor module (403).

3. The quality inspection equipment for a manual corrugated cardboard gluing machine according to claim 2, characterized in that: The outer edge of the vibrating wheel (405) extends beyond the top of the arc groove (404).

4. A quality inspection device for a manual corrugated cardboard gluing machine according to claim 2, characterized in that: There is no rigid contact between the sensor module (403) and the material passage (5).

5. A quality inspection device for a manual corrugated cardboard gluing machine according to claim 4, characterized in that: The sensor module (403) is aligned with the flap of the corrugated cardboard box (6) in the horizontal direction.

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