Pressing device for corrugated board processing

The design of the scraper and heating component solves the problem of uneven glue application, achieves uniform bonding and heat curing of the corrugated cardboard, and improves the bonding effect and cardboard quality.

CN223327079UActive Publication Date: 2025-09-12HEFEI KEKAO PAPER CO LTD
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Patent Information

Application Number
CN202422789292.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-09-12
Estimated Expiration
2034-11-15

AI Technical Summary

Technical Problem

In the prior art, when applying the glue, the glue cannot be scraped flat, resulting in uneven application and reduced bonding effect.

Method used

The scraper is used in conjunction with the second rubber wheel, and the two second rubber wheels are driven to rotate synchronously through the first transmission belt to apply glue on the middle layer of paper. The corrugated cardboard is heated through the heating tube. The heating component and the pressing component ensure that the adhesive is cured and bonded tightly.

Benefits of technology

It achieves uniform application of glue, improves the bonding effect, and ensures the quality and strength of the corrugated cardboard through heat curing and secondary pressing.

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Abstract

The utility model relates to the technical field of corrugated board processing, and discloses a pressing device for corrugated board processing, which comprises a mounting shell, a box door, a mounting plate, a threaded rod, a discharging component, a forming component and a first rubber wheel, the box door is rotatably arranged on the right side of the mounting shell, and the threaded rod is rotatably arranged on the rear side of the mounting shell; a mounting plate is in threaded connection with the threaded rod, two sets of discharging assemblies used for discharging the face paper roll and the corrugated medium paper roll are arranged in the mounting shell, and two sets of corrugated medium paper extrusion assemblies used for conducting extrusion forming on the upper corrugated medium paper and the lower corrugated medium paper are arranged in the mounting shell; and two first rubber wheels for gluing the surface paper are rotationally arranged in the mounting shell. The two second rubber wheels are driven to rotate synchronously through the first transmission belt, glue is smeared on the middle-layer paper, in the process, the glue on the second rubber wheels is scraped to be flat through the scraping plates, it is guaranteed that the glue is smeared more evenly, and the bonding effect is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of corrugated cardboard processing and discloses a pressing device for corrugated cardboard processing. Background Art

[0002] Lamination in corrugated cardboard processing refers to the process of bonding the face paper to the corrugated core paper using adhesive. This process is a key step in corrugated cardboard manufacturing, not only determining the strength and quality of the cardboard but also influencing subsequent processes such as printing and die-cutting.

[0003] The patent with the authorization publication number CN218804378U discloses a corrugated cardboard flattening device for corrugated paper processing, comprising two side panels, wherein a plurality of equally spaced conveyor shafts are rotatably connected between the two side panels via bearings, a belt is placed between the right end of the conveyor shaft located at the front and the right end of the conveyor shaft located at the rear, and each conveyor shaft is connected via a belt drive. Although the above patent accelerates the air flow rate inside the external corrugated cardboard by cooperating with the air-drying shaft and the fan blades, thereby achieving the purpose of rapid solidification of the glue. However, in the process of applying the glue, the glue is directly applied on the corrugated paper, and the glue cannot be scraped flat, which may cause uneven glue application and reduce the bonding effect.

[0004] Therefore, a pressing device for processing corrugated cardboard that can achieve high adhesion is needed. Utility Model Content

[0005] In order to overcome the shortcomings of the existing patents in that the glue is directly applied to the corrugated paper during the application process and the glue cannot be scraped flat, which may cause uneven glue application and thus reduce the bonding effect, the utility model provides a pressing device for corrugated cardboard processing that can achieve high bonding.

[0006] The technical solution of the utility model is: a pressing device for corrugated cardboard processing, including a mounting shell, a box door, a mounting plate, a threaded rod, a feeding assembly, a forming assembly, a first rubber wheel, a second paper wheel, a limit assembly, a second rubber wheel, a second motor, a first transmission belt, a humidifying assembly and a corrugated cardboard extrusion assembly, the mounting shell is rotatably provided with a box door on the right side, the mounting shell is rotatably provided with a threaded rod on the rear side, a mounting plate is threadedly connected to the threaded rod, two groups of feeding assemblies for feeding facing paper rolls and corrugated core paper rolls are provided inside the mounting shell, two groups of corrugated core paper extrusion assemblies for respectively extruding upper and lower corrugated core papers into shape are provided inside the mounting shell, two first rubber wheels for gluing facing paper are rotatably provided inside the mounting shell, a second paper wheel for placing a middle paper roll is rotatably provided in the middle of one side of the mounting shell, and a mounting plate is provided in the middle of the mounting shell. There is a limiting component for limiting the middle layer of paper, two second rubber wheels are rotatably arranged inside the mounting shell, a second motor is installed on the front side of the mounting shell, the output shaft of the second motor is connected to one of the second rubber wheels, and the two second rubber wheels are jointly provided with a first transmission belt, a humidifying component is provided inside the mounting shell, and an extrusion component for extruding corrugated cardboard is provided at the discharge end of the mounting shell, and also includes a first support plate, an adjustment component, a scraper, a glue tank, a nozzle and a nozzle, two first support plates are fixedly connected on the front side of the mounting shell, and the mounting shell and the first support plate are rotatably provided with two adjusting components, a group of scrapers are threaded on the adjusting component, and the scraper can contact the second rubber wheel, a glue tank is provided on the rear side of the mounting shell, and two nozzles are connected and communicated on the glue tank, the nozzle passes through the first support plate, and a plurality of nozzles are provided on the nozzle.

[0007] Furthermore, the unloading assembly includes a first limiting wheel and a first paper wheel. Two first limiting wheels for placing facial paper rolls are rotatably arranged inside the mounting shell, and two first paper wheels for placing corrugated core paper rolls are rotatably arranged inside the mounting shell.

[0008] Furthermore, the extrusion assembly includes a support frame, a third motor, a pulley assembly and a roller. Two support frames are fixedly connected to the front side of the mounting shell. The third motor is installed on the front support frame. The two support frames are provided with two sets of rollers for rotation together. The output shaft of the third motor is connected to one set of rollers, and both sets of rollers are provided with a pulley assembly.

[0009] Furthermore, the molding assembly includes a first gear, a second gear and a first motor. Two first gears are rotatably arranged inside the mounting shell, two second gears are rotatably arranged inside the mounting shell, the first gear is engaged with the adjacent second gear, two first motors are installed on one side of the mounting shell, and the output shaft of the first motor passes through the mounting shell and is connected to the adjacent second gear.

[0010] Furthermore, the limiting assembly includes a second limiting wheel, a third limiting wheel and a second transmission belt. Two second limiting wheels are rotatably provided on one side of the interior of the installation shell, and the middle paper roll passes between the two second limiting wheels. Two third limiting wheels are rotatably provided on the other side of the interior of the installation shell. The third limiting wheel and the adjacent second rubber wheel are driven by the second transmission belt.

[0011] Furthermore, it also includes a heating box, a bellows and a heating pipe. The heating box is arranged on the left side of the installation shell. The top of the heating box is connected and communicated with multiple bellows, and the bellows are connected and communicated with the heating pipe.

[0012] Furthermore, it also includes a pressure plate, a cam, a second support plate, a guide rod and an elastic member. The two support frames are fixedly connected with two groups of second support plates. Each group of second support plates is slidably provided with multiple guide rods. The lower ends of the multiple guide rods are fixedly connected with a pressure plate. An elastic member is provided on the guide rod. The two ends of the elastic member are respectively connected to the second support plate and the guide rod. The two support frames are rotatably provided with two cams, and the cams are in contact with the pulley assembly.

[0013] Furthermore, it also includes a glass window, and the glass window is embedded in the door.

[0014] Furthermore, an alarm is included, and two alarms are arranged on the top of the installation shell.

[0015] Furthermore, it also includes an anti-slip sleeve, and the anti-slip sleeve is sleeved on one end of the threaded rod.

[0016] Compared with the existing technology, the utility model provides a pressing device for corrugated cardboard processing, which has the following beneficial effects: 1. Through the first transmission belt, the two second rubber wheels are driven to rotate synchronously to apply glue on the middle layer of paper. During this process, the scraper scrapes the glue on the second rubber wheels flat, ensuring that the glue is applied more evenly and improving the bonding effect.

[0017] 2. The heat is evenly transferred to the corrugated cardboard through the heating tube to heat the corrugated cardboard, which helps to ensure better curing of the adhesive and prevent the corrugated cardboard from deformation due to temperature changes.

[0018] 3. The cam is rotated through the pulley assembly, and the rotation of the cam pushes the pressing plate inward, so that the pressing plate presses the corrugated cardboard for the second time, thereby pressing the corrugated cardboard more tightly and improving the quality of the corrugated cardboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0020] Figure 2 This is a three-dimensional structural diagram of the installation shell, box door and glass window of the utility model.

[0021] Figure 3 It is a three-dimensional cross-sectional view of the mounting plate, threaded rod and first paper wheel of the utility model.

[0022] Figure 4 It is a three-dimensional cross-sectional view of the third limiting wheel, the second rubber wheel and the second motor of the utility model.

[0023] Figure 5 It is a three-dimensional structural diagram of the first gear, the second gear and the first rubber wheel of the utility model.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the second paper wheel, the second limiting wheel and the third limiting wheel of the utility model.

[0025] Figure 7 This is an exploded view of the three-dimensional structure of the first limiting wheel, the first paper wheel and the first gear of the utility model.

[0026] Figure 8 This is a structural cross-sectional view of the support frame, the third motor and the roller of the utility model.

[0027] Figure 9 This is a three-dimensional cross-sectional view of the adjustment component, scraper and glue box of the utility model.

[0028] Figure 10 It is a schematic diagram of the three-dimensional structure of the first support plate, nozzle and nozzle of the utility model.

[0029] Figure 11 This is a cover diagram of the heating box, cam and second support plate of the utility model.

[0030] Figure 12 It is a schematic diagram of the three-dimensional structure of the pressing plate, guide rod and elastic member of the utility model.

[0031] Figure 13 It is a three-dimensional cross-sectional view of the heating box, bellows and heating tube of the utility model.

[0032] Parts names and serial numbers in the figure: 1. Mounting shell, 2. Box door, 3. Glass window, 4. Mounting plate, 5. Threaded rod, 6. First limiting wheel, 7. First paper wheel, 8. First gear, 9. Second gear, 10. First rubber wheel, 11. First motor, 12. Second paper wheel, 13. Second limiting wheel, 14. Third limiting wheel, 15. Second rubber wheel, 16. Second motor, 17. First transmission belt, 18. Second transmission belt, 19. , humidifying component, 20. Support frame, 21. Third motor, 22. Pulley assembly, 23. Roller, 24. First support plate, 25. Adjustment component, 26. Scraper, 27. Glue box, 28. Nozzle, 29. Nozzle, 291. Heating box, 30. Bellows, 31. Heating tube, 32. Press plate, 33. Cam, 34. Second support plate, 35. Guide rod, 36. Elastic part, 37. Alarm, 38. Anti-slip sleeve. DETAILED DESCRIPTION

[0033] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0034] Example 1: A pressing device for corrugated cardboard processing, see Figures 1-11, including a mounting shell 1, a box door 2, a mounting plate 4, a threaded rod 5, a first limiting wheel 6, a first paper wheel 7, a first gear 8, a second gear 9, a first rubber wheel 10, a first motor 11, a second paper wheel 12, a second limiting wheel 13, a third limiting wheel 14, a second rubber wheel 15, a second motor 16, a first transmission belt 17, a second transmission belt 18, a humidifying component 19, a support frame 20, a third motor 21, a pulley assembly 22 and a roller 23. The mounting shell 1 is rotatably provided with the box door 2 on the right side, and the mounting shell 1 is rotatably provided with a threaded rod 5 on the rear side. The threaded rod 5 is threadedly connected to the mounting plate 4. Two first limiting wheels 6 are rotatably provided inside the mounting shell 1, two first paper wheels 7 are rotatably provided inside the mounting shell 1, and the mounting shell 1 is rotatably provided inside the mounting shell 1. Two first gears 8 are provided, two second gears 9 are rotatably provided inside the mounting shell 1, the first gear 8 and the second gear 9 are meshed, two first rubber wheels 10 are rotatably provided inside the mounting shell 1, two first motors 11 are provided on the front side of the mounting shell 1 by bolt connection, the output shaft of the first motor 11 is connected to the second gear 9, a second paper wheel 12 is rotatably provided inside the mounting shell 1, two second limiting wheels 13 are rotatably provided inside the mounting shell 1, the first limiting wheel 6, the first paper wheel 7, the second paper wheel 12 and the second limiting wheel 13 are all slidably and rotatably connected to the mounting plate 4, two third limiting wheels 14 are rotatably provided inside the mounting shell 1, two second rubber wheels 15 are rotatably provided inside the mounting shell 1, the front side of the mounting shell 1 is connected by bolts A second motor 16 is provided in a manner, the output shaft of the second motor 16 is connected to one of the second rubber wheels 15, the two second rubber wheels 15 are jointly provided with a first transmission belt 17, each second rubber wheel 15 and the third limiting wheel 14 are jointly provided with a second transmission belt 18, a humidifying component 19 is provided inside the mounting shell 1, the front side of the mounting shell 1 is fixedly connected to two support frames 20, the front support frame 20 is provided with a third motor 21 by bolt connection, the two support frames 20 are jointly rotatably provided with two groups of rollers 23, the output shaft of the third motor 21 is connected to one group of rollers 23, and the two groups of rollers 23 are both provided with a pulley assembly 22, the front side of the mounting shell 1 is fixedly connected to two first support plates 24, the mounting shell 1 and the first support plate 2 Two adjusting components 25 are provided in a co-rotating manner. A set of scrapers 26 are threadedly provided on the adjusting components 25. The scrapers 26 can contact the second rubber wheel 15. A glue tank 27 is provided on the rear side of the mounting shell 1. The glue tank 27 is connected to and communicates with two nozzles 28. The nozzles 28 pass through the first support plate 24. The nozzles 28 are provided with a plurality of nozzles 29. A glass window 3 is embedded in the door 2, through which the internal situation of the mounting shell 1 can be easily viewed. Two alarms 37 are provided on the top of the mounting shell 1. When pressing, the alarms 37 are turned on to detect the operation of the device. When an abnormality occurs, the alarms 37 sound an alarm. An anti-slip sleeve 38 is provided on one end of the threaded rod 5 to prevent the hand from slipping when rotating the threaded rod 5.

[0035] When the corrugated cardboard needs to be pressed, first rotate the threaded rod 5 to place the paper roll, then place the face paper roll on the first limiting wheel 6 on the upper side, place the bottom paper roll on the first limiting wheel 6 on the lower side, and then place the corrugated core paper roll on the first paper wheel 7, and pull the corrugated core paper so that it first passes through the first gear 8 and then the second gear 9, and ensures that it contacts the face paper and the bottom paper. Then, place the middle paper roll on the second paper wheel 12 and pull the middle paper to the left so that it passes between the two second limiting wheels 13 and the third limiting wheel, and finally is located between the two second limiting wheels 13 and the third limiting wheel. Between the two rubber wheels 15, at this time, the first motor 11 is turned on, and the output shaft of the first motor 11 rotates to drive the first gear 8 to rotate. Since the first gear 8 and the second gear 9 are engaged with each other, the second gear 9 will also rotate accordingly. The simultaneous rotation of these two gears will press the corrugated core paper into the required shape. During the pressing process, the first rubber wheel 10 rotates with the rotation of the gears, and the adhesive is evenly applied to the corrugated core paper. When the corrugated core paper contacts the face paper and the bottom paper, the face paper and the bottom paper will be stuck to its surface. At the same time, the water pump on the glue tank 27 and the first rubber wheel 10 are started. The second motor 16 and the water pump run to pump the glue in the glue tank 27 into the nozzle 28, and then evenly spray it on the second rubber wheel 15 through the nozzle 29. The output shaft of the second motor 16 rotates to drive the second rubber wheel 15 to rotate. Through the first transmission belt 17, the two second rubber wheels 15 are driven to rotate synchronously to apply glue on the middle paper. In this process, the scraper 26 scrapes the glue on the second rubber wheel 15 to ensure that the glue is applied more evenly and improve the bonding effect. Next, the third limit wheel rotates through the second transmission belt 18 to transport the middle paper to the left. Then, start the humidifying component 19 to properly moisten the corrugated core paper, which helps to improve the bonding effect. The moistened corrugated core paper is attached to the two surfaces of the middle paper to make the two tightly bonded. Finally, pull the assembled corrugated cardboard between the two groups of rollers 23, turn on the third motor 21, and the output shaft of the third motor 21 rotates to drive the lower group of rollers 23 to rotate. Under the action of the friction force of the corrugated cardboard, the upper group of rollers 23 will also rotate accordingly. The two groups of rollers 23 rotate at the same time to press the corrugated cardboard to ensure that the bonding between the layers is more firm.

[0036] Example 2: Based on Example 1, please refer to Figure 1 、 Figure 8 、 Figure 11 、 Figure 12 and Figure 13 A heating box 291 is provided on the left side of the mounting shell 1 , and the top of the heating box 291 is connected and communicated with four bellows 30 , and the bellows 30 are connected and communicated with the heating pipe 31 .

[0037] When the corrugated cardboard is pressed together, the heating box 291 is turned on and generates heat. The heat is transported to the inside of the heating tube 31 through the corrugated tube 30 and then evenly transferred to the corrugated cardboard through the heating tube 31 to heat the corrugated cardboard, thereby helping to ensure better curing of the adhesive and preventing the corrugated cardboard from deforming due to temperature changes.

[0038] See also Figure 1 、 Figure 9 、 Figure 11 、 Figure 12 and Figure 13 The two support frames 20 are jointly fixedly connected with two groups of second support plates 34, each group of second support plates 34 is slidably provided with a plurality of guide rods 35, and the lower ends of the plurality of guide rods 35 are jointly fixedly connected with a pressure plate 32, and an elastic member 36 is provided on the guide rod 35, and the two ends of the elastic member 36 are respectively connected to the second support plate 34 and the guide rod 35, and the two support frames 20 are jointly rotatably provided with two cams 33, and the cam 33 is in contact with the pulley assembly 22.

[0039] When the roller 23 rotates, the cam 33 rotates through the pulley assembly 22, causing the cam 33 to rotate and push the pressing plate 32 to move inward, so that the pressing plate 32 performs a secondary pressing on the corrugated cardboard. At this time, the elastic member 36 is deformed, thereby pressing the corrugated cardboard more tightly and improving the quality of the corrugated cardboard. When the cam 33 continues to rotate and no longer pushes the pressing plate 32, the elastic member 36 returns to its original shape, driving the guide rod 35 to move outward, so that the pressing plate 32 is reset.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressing device for processing corrugated cardboard, comprising a mounting shell (1), a box door (2), a mounting plate (4), a threaded rod (5), a discharge assembly, a forming assembly, a first rubber wheel (10), a second paper wheel (12), a second rubber wheel (15), a second motor (16), a first transmission belt (17), a humidifying assembly (19) and a corrugated cardboard extrusion assembly, wherein the box door (2) is rotatably provided on the right side of the mounting shell (1), a threaded rod (5) is rotatably provided on the rear side of the mounting shell (1), and the mounting plate (4) is threadedly connected to the threaded rod (5), two sets of discharge assemblies for discharging the face paper roll and the corrugated core paper roll are provided inside the mounting shell (1), and two sets of discharge assemblies for discharging the upper and lower corrugated paper rolls are provided inside the mounting shell (1). A corrugated core paper forming assembly for core paper extrusion forming, wherein two first rubber wheels (10) for gluing facing paper are rotatably provided inside a mounting shell (1), a second paper wheel (12) for placing a middle paper roll is rotatably provided in the middle of one side of the mounting shell (1), two second rubber wheels (15) are rotatably provided inside the mounting shell (1), a second motor (16) is installed on the front side of the mounting shell (1), an output shaft of the second motor (16) is connected to one of the second rubber wheels (15), and the two second rubber wheels (15) are jointly provided with a first transmission belt (17), a humidifying assembly (19) is provided inside the mounting shell (1), and an extrusion assembly for extruding corrugated paperboard is provided at the discharge end of the mounting shell (1), and the invention is characterized in that: The invention also includes a first support plate (24), an adjustment component (25), a scraper (26), a glue box (27), a nozzle (28) and a nozzle (29). Two first support plates (24) are fixedly connected to the front side of the mounting shell (1). The mounting shell (1) and the first support plate (24) are provided with two adjustment components (25) for rotating together. A group of scrapers (26) are threadedly provided on the adjustment component (25). The scrapers (26) can contact the second rubber wheel (15). A glue box (27) is provided on the rear side of the mounting shell (1). Two nozzles (28) are connected and communicated with the glue box (27). The nozzles (28) pass through the first support plate (24). A plurality of nozzles (29) are provided on the nozzles (28).

2. The corrugated cardboard processing pressing device according to claim 1, characterized in that: The unloading assembly comprises a first limiting wheel (6) and a first paper wheel (7); two first limiting wheels (6) for placing facial paper rolls are rotatably arranged in the middle of the mounting shell (1); and two first paper wheels (7) for placing corrugated core paper rolls are rotatably arranged inside the mounting shell (1).

3. The corrugated cardboard processing pressing device according to claim 2, characterized in that: The extrusion assembly includes a support frame (20), a third motor (21), a pulley assembly (22) and a roller (23). The front side of the mounting shell (1) is fixedly connected to two support frames (20). The third motor (21) is installed on the front support frame (20). The two support frames (20) are provided with two groups of rollers (23) in a rotatable manner. The output shaft of the third motor (21) is connected to one group of rollers (23). The two groups of rollers (23) are both sleeved with the pulley assembly (22).

4. The corrugated cardboard processing pressing device according to claim 3, characterized in that: The molding assembly comprises a first gear (8), a second gear (9) and a first motor (11); two first gears (8) are rotatably arranged inside the mounting shell (1); two second gears (9) are rotatably arranged inside the mounting shell (1); the first gear (8) is meshed with the adjacent second gear (9); two first motors (11) are installed on one side of the mounting shell (1); the output shaft of the first motor (11) passes through the mounting shell (1) and is connected to the adjacent second gear (9).

5. The corrugated cardboard processing pressing device according to claim 4, characterized in that: The invention also includes a second limiting wheel (13), a third limiting wheel (14) and a second transmission belt (18). Two second limiting wheels (13) are rotatably arranged on one side of the interior of the installation shell (1). The middle paper roll passes between the two second limiting wheels (13). Two third limiting wheels (14) are rotatably arranged on the other side of the interior of the installation shell (1). The third limiting wheels (14) and the adjacent second rubber wheels (15) are driven by the second transmission belt (18).

6. The corrugated cardboard processing pressing device according to claim 5, characterized in that: The device further comprises a heating box (291), a bellows (30) and a heating pipe (31). The heating box (291) is arranged on the left side of the mounting shell (1). The top of the heating box (291) is connected to and communicates with a plurality of bellows (30). The top of the bellows (30) is connected to and communicates with the heating pipe (31).

7. The corrugated cardboard processing pressing device according to claim 6, characterized in that: The invention also includes a pressing plate (32), a cam (33), a second supporting plate (34), a guide rod (35) and an elastic member (36). The two supporting frames (20) are fixedly connected with two groups of second supporting plates (34). Each group of second supporting plates (34) is slidably provided with a plurality of guide rods (35). The lower ends of the plurality of guide rods (35) are fixedly connected with the pressing plate (32). The guide rods (35) are provided with an elastic member (36). The two ends of the elastic member (36) are respectively connected with the second supporting plate (34) and the guide rod (35). The two supporting frames (20) are rotatably provided with two cams (33). The cams (33) are in contact with the pulley assembly (22).

8. The corrugated cardboard processing pressing device according to claim 7, characterized in that: It also includes a glass window (3), and the glass window (3) is embedded in the box door (2).

9. The corrugated cardboard processing pressing device according to claim 8, characterized in that: It also includes an alarm (37), and two alarms (37) are arranged on the top of the installation shell (1).

10. The corrugated cardboard processing pressing device according to claim 9, characterized in that: It also includes an anti-slip sleeve (38), and one end of the threaded rod (5) is sleeved with the anti-slip sleeve (38).

Citation Information

Patent Citations

  • A corrugated cardboard flattening device for corrugated paper processing

    CN218804378U