Upper pressure roller assembly of a roller-based upper and lower paper pressing mechanism for carton forming

Abstract

This utility model discloses an upper pressure roller assembly for a paper pressing mechanism based on a roller in carton forming, belonging to the technical field of carton forming equipment components. This utility model includes an upper pressure roller mechanism, which is composed of multiple structures. The upper pressure roller assembly is designed as an integrated composite structure. Relying on the sliding connection between the upper movable wall plate and the first slider, the entire assembly can be quickly adjusted laterally to adapt to different specifications of cardboard, enabling multi-variety production switching without stopping the machine for component replacement. The hinged design of the swing arm bearing pin and connecting rod, combined with the low-friction rotation characteristics of the first bearing, forms a dynamic transmission link. This structural innovation not only achieves synchronous operation of cardboard conveying and pre-crimming, but also improves the equipment's adaptability to complex working conditions through modular design. Especially when handling wide or irregularly shaped cardboard, it can significantly reduce manual adjustment time and improve the flexible production capacity of the production line.

Description

Technical Field

[0001] This utility model belongs to the technical field of carton forming equipment components, specifically the upper pressure roller assembly of the upper and lower paper pressing mechanism based on carton forming. Background Technology

[0002] In the corrugated box forming process, the paper feeding system is a core component, and its function directly affects the quality and efficiency of cardboard processing. Traditional paper feeding systems mainly achieve cardboard transport through tapping alignment and suction conveying. However, in actual production, these systems have significant technical bottlenecks: they can only complete basic conveying functions and cannot pre-treat the edges that need to be bent during cardboard transport. This results in high bending resistance and high forming difficulty for the cardboard during subsequent forming due to the lack of pre-indentation, easily leading to irregular folds and dimensional deviations, which seriously affect the accuracy of the finished corrugated box and production efficiency.

[0003] To address the aforementioned issues, the industry urgently needs a highly efficient mechanism capable of simultaneously performing pre-creasing during the conveying process. The applicant has discovered that existing technologies lack integrated paper feeding components that combine conveying and precise pre-creasing functions, particularly lacking a systematic design for the upper creasing roller assembly in terms of pressure regulation, gap control, and high-speed motion stability. Therefore, developing an upper creasing roller assembly that achieves a combined "conveyor + pre-creasing" function, through structural innovation, solves the problem of the single function of traditional paper feeding systems, becoming a key technological direction for improving the quality of carton forming. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide an upper pressure roller assembly for a paper pressing mechanism based on carton forming, which has the advantage of good performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an upper pressure roller assembly based on a roller pressing mechanism for cardboard box forming, comprising an upper pressure roller mechanism, wherein the upper pressure roller mechanism consists of an upper movable wall plate, a first slider, a rocker arm bearing pin, a connecting rod, a first spacer, a first bearing, a cap, a first belt roller pin, a first belt pulley, a first deep groove ball bearing component, a first shaft small retaining ring, a second belt roller pin, a tensioning roller, a first deep groove ball bearing limiting component, and a first shaft large retaining ring. Ring, drive wheel, pressure drive wheel, first bearing housing, third belt roller pin, first wheel, belt tensioner pin, mounting plate, mounting plate with tension screw, washer, adjusting rod, hexagonal nut, first movable adjusting connecting plate, eccentric sleeve bearing housing, needle roller bearing body, hexagonal eccentric sleeve, first washer, second washer, pin, pressure wheel swing arm 1, second spacer, rotating shaft, tapered roller bearing, pressure wheel 2, pressure wheel 1, first transition pin, paper pressure swing arm 2, first connecting block, first tensioner The machine comprises a swing arm shaft, a second connecting block, a pressure arm shaft, a connecting slider, a second tension wheel swing arm shaft, a tension wheel swing arm, a third spacer, a fourth spacer, a first tapered roller bearing support, a first radial locking nut, a tension wheel shaft, a robotic arm adjusting connecting plate, a radial locking nut, a drive synchronous wheel, an upper belt drive wheel, a transition synchronous wheel, a second belt pulley, a connecting piece, a cylinder seat, a machined part, an oil-free bushing, a third connecting block, a connecting plate, a mechanical part, a first spring, a second spring, a slider mounting seat, a second movable adjusting connecting plate, a second transition pin, a belt lifting plate, and a belt. The upper movable wall plate is slidably mounted on the frame via the first slider. The swing arm bearing pin passes through the connecting rod and the first bearing and is fixed to the upper movable wall plate. The other end of the connecting rod is hinged to the paper pressing swing arm 2 via the first transition pin. The drive synchronous wheel, the upper belt drive wheel, the transition synchronous wheel, and the second belt pulley form a synchronous transmission circuit via a belt. The belt is also wound around the drive wheel, the tension roller, and the first wheel.

[0006] As a preferred embodiment of this utility model, the eccentric sleeve bearing housing is equipped with a needle roller bearing body, and the hexagonal eccentric sleeve passes through the needle roller bearing body and is fixedly connected to the pressure roller swing arm 1. The first shim and the second shim are disposed between the hexagonal eccentric sleeve and the eccentric sleeve bearing housing. By rotating the hexagonal eccentric sleeve, the gap between the pressure roller 1, the pressure roller 2 and the lower pressure roller can be adjusted to 3-15mm.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] 1. This utility model adopts an integrated composite structure design for the upper pressure roller assembly. Relying on the sliding connection between the upper movable wall plate and the first slider, the entire assembly can be quickly adjusted laterally to adapt to different specifications of cardboard, enabling multi-variety production switching without stopping the machine for component replacement. The hinged design of the swing arm bearing pin and connecting rod, combined with the low-friction rotation characteristics of the first bearing, forms a dynamic transmission link, ensuring smooth linkage of the pressure arm 2 during high-speed movement and avoiding the dead points of traditional rigid connections. This structural innovation not only achieves synchronous operation of cardboard conveying and pre-crimming but also improves the equipment's adaptability to complex working conditions through modular design. Especially when handling wide or irregularly shaped cardboard, it can significantly reduce manual adjustment time and enhance the flexible production capacity of the production line.

[0009] 2. This utility model provides a convenient mechanical solution for adjusting the gap between the crease rollers through the cooperative design of the eccentric sleeve bearing housing and the hexagonal eccentric sleeve. By rotating the hexagonal eccentric sleeve, the operator can precisely adjust the gap between the crease rollers 1 and 2 and the lower crease roller by rotating the crease roller swing arm 1. The adjustment process does not require disassembly of components; only simple tools are needed to complete the stepless adjustment within the 3-15mm range. The high load-bearing capacity of the needle roller bearing housing and the gap compensation function of the first and second shims ensure that the adjusted crease rollers remain stable during high-speed operation, avoiding fluctuations in indentation depth caused by mechanical wear. This is especially suitable for production scenarios where cardboard thickness is frequently changed, effectively improving the equipment's process compatibility and processing accuracy consistency. Attached Figure Description

[0010] Figure 1 This is a front view schematic diagram of the overall structure of this utility model.

[0011] Figure 2 This is a side view of the overall structure of this utility model.

[0012] Figure 3 This is a schematic diagram of the rear side of the overall structure of this utility model.

[0013] Figure 4 This is a schematic diagram of the upper pressure wheel mechanism of this utility model.

[0014] Figure 5 This is a three-dimensional structural diagram of the upper pressure wheel mechanism of this utility model.

[0015] Figure 6 This is a structural diagram of the upper pressure wheel mechanism of this utility model.

[0016] Figure 7 This is a plan view of the upper pressure wheel mechanism of this utility model. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0018] like Figures 1 to 7 As shown, the upper pressure roller assembly of the upper and lower paper pressing mechanism based on the carton forming roller includes an upper pressure roller mechanism, which consists of an upper movable wall plate 1, a first slider 2, a rocker arm bearing pin 3, a connecting rod 4, a first spacer 5, a first bearing 6, a cap 7, a first belt roller pin 8, a first belt pulley 9, a first deep groove ball bearing component 10, a first shaft small retaining ring 11, a second belt roller pin 12, a tension roller 13, a first deep groove ball bearing limiting component 14, a first shaft large retaining ring 15, a drive wheel 16, a pressure roller drive wheel 17, a first bearing seat 18, and a third belt roller pin 19. 9. First wheel; 20. Belt tensioner pin; 21. Mounting plate; 22. Mounting plate with tensioning screw; 23. Washer; 24. Adjusting rod; 25. Hexagonal nut; 26. First movable adjusting connecting plate; 27. Eccentric sleeve bearing seat; 28. Needle roller bearing body; 29. ​​Hexagonal eccentric sleeve; 30. First washer; 31. Second washer; 32. Pin; 33. Pressure roller swing arm; 134. Second spacer; 35. Rotating shaft; 36. Tapered roller bearing; 37. Wire pressing wheel; 238. Wire pressing wheel; 139. First transition pin; 40. Paper pressing swing arm; 241. First connecting block; 42. First tensioner swing arm shaft; 43. Second connecting block. 4. Pressure arm shaft 45, connecting slider 46, second tension wheel swing arm shaft 47, tension wheel swing arm 48, third spacer 49, fourth spacer 50, first tapered roller bearing support 51, first radial locking nut 52, tension wheel shaft 53, robot arm adjusting connecting plate 54, radial locking nut 55, drive synchronous pulley 56, upper belt drive pulley 57, transition synchronous pulley 58, second belt pulley 59, connecting piece 60, cylinder seat 61, machined part 62, oil-free bushing 63, third connecting block 64, connecting plate 65, mechanical part 66, first spring 67, second spring 68, slider The system consists of mounting base 69, second movable adjustment connecting plate 70, second transition pin 71, belt lifting plate 72, and belt 73. The upper movable wall plate 1 is slidably mounted on the frame via the first slider 2. The swing rod bearing pin 3 passes through the connecting rod 4 and the first bearing 6 and is fixed to the upper movable wall plate 1. The other end of the connecting rod 4 is hinged to the paper pressing swing arm 241 via the first transition pin 40. The drive synchronous wheel 56, the upper belt drive wheel 57, the transition synchronous wheel 58, and the second belt pulley 59 form a synchronous transmission circuit via the belt 73. The belt 73 is also wound around the drive wheel 16, the tensioning roller 13, and the first wheel 20.

[0019] refer to Figure 2The eccentric sleeve bearing housing 28 is equipped with a needle roller bearing body 29. The hexagonal eccentric sleeve 30 passes through the needle roller bearing body 29 and is fixedly connected to the pressure roller swing arm 134. The first shim 31 and the second shim 32 are located between the hexagonal eccentric sleeve 30 and the eccentric sleeve bearing housing 28. By rotating the hexagonal eccentric sleeve 30, the gap between the pressure roller 139, the pressure roller 238 and the lower pressure roller can be adjusted to 3-15mm.

[0020] This embodiment provides a convenient mechanical solution for adjusting the gap between the crease rollers through the cooperative design of the eccentric sleeve bearing housing 28 and the hexagonal eccentric sleeve 30. By rotating the hexagonal eccentric sleeve 30, the operator can precisely adjust the gap between the crease rollers 139, 238, and the lower crease roller by rotating the crease roller swing arm 134. The adjustment process requires no disassembly of components and can be completed steplessly within the 3-15mm range using only simple tools. The high load-bearing capacity of the needle roller bearing housing 29 and the gap compensation effect of the first shim 31 and the second shim 32 ensure that the adjusted crease rollers remain stable during high-speed operation, avoiding fluctuations in indentation depth due to mechanical wear. This is particularly suitable for production scenarios where cardboard thickness is frequently changed, effectively improving the equipment's process compatibility and processing accuracy consistency.

[0021] refer to Figure 2 The mounting plate 22 is fixed to the upper movable wall plate 1. The belt tensioning wheel pin 21 passes through the mounting plate 22 and is rotatably connected to the tensioning roller 13. The adjusting rod 25 passes through the mounting plate 23 with tensioning screw and the first movable adjusting connecting plate 27. By rotating the hexagonal nut 26, the mounting plate 23 with tensioning screw can be moved, thereby adjusting the tension of the belt 73.

[0022] This embodiment achieves dynamic control of belt tension 73 through the linkage design of the belt tension adjustment mechanism via the adjusting rod 25 and the hexagonal nut 26. The operator can rotate the hexagonal nut 26 in real time according to the belt's operating status, pushing the belt tensioning screw mounting plate 23 to move, thereby adjusting the position of the tensioning roller 13 and precisely compensating for belt slack caused by prolonged use. This design avoids the slippage or blurred indentation problems caused by belt slack in traditional fixed tensioning structures, and adjustment can be completed without specialized tools, lowering the equipment maintenance threshold. Combined with the low-resistance rotational characteristics of the deep groove ball bearing limiting component 14, the belt maintains constant tension during high-speed transmission, ensuring the stability of the cardboard conveying and indentation process.

[0023] refer to Figure 2 The rotating shaft 36 is mounted on the pressure roller swing arm 134 and the paper pressing swing arm 241 via tapered roller bearing 37 and second spacer 35. The pressing wheel 139 and pressing wheel 238 are respectively fixed at both ends of the rotating shaft 36. The outer circumferential surface of the shaft is provided with a raised groove. The drive wheel 16 and the pressing drive wheel 17 are coaxially mounted on the first bearing seat 18 and are connected to the drive synchronous wheel 56 via belt 73.

[0024] This embodiment utilizes the mounting structure of the rotating shaft 36, connected to the pressure roller swing arm 134 and the paper pressing swing arm 241 via the tapered roller bearing 37. This structure can withstand high radial loads. Combined with the axial positioning effect of the second spacer 35, it ensures the stability of the crease rollers 139 and 238 during pre-crease application, preventing crease distortion caused by force misalignment. The raised groove design on the outer circumference of the crease rollers creates shear force coupling with the lower crease roller, pressing regular straight creases onto the cardboard surface, significantly reducing bending resistance during subsequent forming. The coaxial transmission design of the drive wheel 16 and the crease drive wheel 17, linked by the belt 73 and the drive synchronization wheel 56, ensures that the crease roller speed is synchronized with the conveyor speed, preventing cardboard wrinkles or crease misalignment due to speed differences, thus improving overall processing quality.

[0025] refer to Figure 2 The tensioner swing arm 48 is assembled to the tensioner shaft 53 via the third spacer 49, the fourth spacer 50 and the first tapered roller bearing support 51, and is locked by the first radial locking nut 52.

[0026] In this embodiment, the tensioning wheel swing arm 48, through the assembly structure of the third spacer 49, the fourth spacer 50, and the first tapered roller bearing support 51, combined with the locking action of the tensioning wheel shaft 53 and the first radial locking nut 52, forms an adaptive tensioning system. When the belt 73 changes length due to temperature changes or wear, the tensioning wheel swing arm can automatically adjust the tension position under the action of spring force, and the tension force can be further precisely controlled by manual fine-tuning. The synchronous transmission circuit composed of the drive synchronous pulley 56, the upper belt drive pulley 57, the transition synchronous pulley 58, and the second belt pulley 59 achieves speed coordination of multiple pulleys through the closed-loop transmission of the belt 73, ensuring that the cardboard is subjected to uniform force during the conveying process, avoiding indentation position deviation caused by transmission lag, and significantly improving the system's motion stability and energy transfer efficiency.

[0027] refer to Figure 2 The connector 60 is installed on the cylinder seat 61, and its output end is connected to the belt lifting plate 72 through the connecting plate 65. The first spring 67 and the second spring 68 are located in the slider mounting seat 69 to provide pressure buffer. The belt lifting plate 72 is hinged to the second movable adjusting connecting plate 70 through the second transition pin 71, which can drive the belt 73 to move up and down.

[0028] This embodiment utilizes the linkage design between the cylinder in connector 60 and cylinder seat 61 to achieve rapid lifting and lowering of the belt lifting plate 72 via pneumatic control, facilitating gap adjustment during equipment debugging or cardboard specification switching. The buffer structure of the first spring 67 and second spring 68 within the slider mounting base 69 provides flexible support during cylinder-driven belt lifting, reducing damage to mechanical components from rigid impacts. It also adapts to the pre-pressing requirements of cardboard of different thicknesses, preventing cardboard breakage due to excessive pressure. The belt lifting plate 72, through the hinge structure between the second transition pin 71 and the second movable adjusting connecting plate 70, ensures the synchronization and stability of the lifting action, maintaining dynamic balance of the entire assembly during high-speed operation and improving the reliability and service life of the equipment.

[0029] This invention obtains external power from the drive synchronous pulley 56, which rotates and, via the belt 73, sequentially drives the upper belt drive pulley 57, the transition synchronous pulley 58, and the second belt pulley 59, forming a closed-loop transmission circuit. The drive wheel 16 and the creasing drive wheel 17 are coaxially mounted with the upper belt drive pulley 57 and rotate synchronously with the belt 73. This, in turn, drives the creasing wheels 139 and 238 to rotate at high speed via the rotating shaft 36 and the tapered roller bearing 37. When the cardboard enters between the upper and lower creasing wheel assemblies, the lower creasing wheel mechanism and the belt 73 lift and convey the cardboard backward through friction. At this time, the raised grooves on the circumference of the creasing wheels 139 and 238 press against the upper surface of the cardboard, creating a shearing force with the lower creasing wheel 77 of the paper feed section, pressing a straight indentation on the edge of the cardboard to be bent. Rotate the hexagonal eccentric sleeve 30, which drives the pressure roller swing arm 134 and the paper pressure swing arm 241 to rotate around the pin shaft 33 via the needle roller bearing body 29. Adjust the gap between the pressure roller and the lower pressure roller 77 of the paper feed section by the first shim 31 and the second shim 32, which is 3-15mm, to adapt to the pre-pressing requirements of different thicknesses of paperboard. The adjustment process does not require disassembling the components.

[0030] The adjusting rod 25 passes through the tensioning screw mounting plate 23 and the first movable adjusting connecting plate 27. Rotating the hexagonal nut 26 pushes the tensioning screw mounting plate 23 to move, causing the tensioning roller 13 to move along the belt 73, compensating for belt slack in real time. The tensioning wheel swing arm 48 is assembled through the tensioning wheel shaft 53, the third spacer 49, the fourth spacer 50, and the first tapered roller bearing support 51, and is locked by the first radial locking nut 52. With the elastic support of the first spring 67 and the second spring 68, an adaptive tensioning system is formed to ensure that the belt 73 maintains constant tension during high-speed transmission.

[0031] The connecting component 60 is mounted on the cylinder seat 61, and its output end is connected to the belt lifting plate 72 via the connecting plate 65. When the cylinder drives the belt lifting plate 72 to adjust the gap between the upper and lower components, the first spring 67 and the second spring 68 in the slider mounting seat 69 provide flexible buffering to avoid rigid impact damage to the cardboard, while adapting to the pressure requirements of cardboard of different thicknesses.

[0032] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An upper pressure roller assembly for a paper pressing mechanism based on a carton forming roller, comprising an upper pressure roller mechanism, characterized in that: The upper pressing wheel mechanism consists of an upper movable wall plate (1), a first slider (2), a rocker arm bearing pin (3), a connecting rod (4), a first spacer (5), a first bearing (6), a cap (7), a first belt roller pin (8), a first belt pulley (9), a first deep groove ball bearing component (10), a first shaft small retaining ring (11), a second belt roller pin (12), a tensioning roller (13), a first deep groove ball bearing limiting component (14), a first shaft large retaining ring (15), a drive wheel (16), a pressing drive wheel (17), a first bearing seat (18), a third belt roller pin (19), a first wheel (20), a belt tensioning wheel pin (21), a mounting plate (22), and a tensioning screw. Rod mounting plate (23), washer (24), adjusting rod (25), hexagonal nut (26), first movable adjusting connecting plate (27), eccentric sleeve bearing seat (28), needle roller bearing body (29), hexagonal eccentric sleeve (30), first washer (31), second washer (32), pin (33), pressure roller swing arm 1 (34), second spacer (35), rotating shaft (36), tapered roller bearing (37), pressure roller 2 (38), pressure roller 1 (39), first transition pin (40), paper pressing swing arm 2 (41), first connecting block (42), first tensioning wheel swing arm shaft (43), second connecting block (44), pressure arm shaft (45), connecting slider (46), second tensioning wheel swing arm Arm shaft (47), tensioner swing arm (48), third spacer (49), fourth spacer (50), first tapered roller bearing support (51), first radial locking nut (52), tensioner shaft (53), manipulator adjustment connecting plate (54), radial locking nut (55), drive synchronous pulley (56), upper belt drive pulley (57), transition synchronous pulley (58), second belt pulley (59), connector (60), cylinder seat (61), machined part (62), oil-free bushing (63), third connecting block (64), connecting plate (65), mechanical part (66), first spring (67), second spring (68), slider mounting seat (69), second movable adjustment connection The upper movable wall plate (1) is slidably mounted on the frame via the first slider (2). The swing arm bearing pin (3) passes through the connecting rod (4) and the first bearing (6) and is fixed to the upper movable wall plate (1). The other end of the connecting rod (4) is hinged to the paper pressing swing arm 2 (41) via the first transition pin (40). The drive synchronous wheel (56), the upper belt drive wheel (57), the transition synchronous wheel (58) and the second belt pulley (59) form a synchronous transmission circuit via the belt (73). The belt (73) is also wound around the drive wheel (16), the tensioning roller (13) and the first wheel (20).

2. The upper pressure roller assembly of the upper and lower paper pressing mechanism based on carton forming according to claim 1, characterized in that: The eccentric sleeve bearing housing (28) is fitted with a needle roller bearing body (29). The hexagonal eccentric sleeve (30) passes through the needle roller bearing body (29) and is fixedly connected to the pressure roller swing arm 1 (34). The first shim (31) and the second shim (32) are located between the hexagonal eccentric sleeve (30) and the eccentric sleeve bearing housing (28). By rotating the hexagonal eccentric sleeve (30), the gap between the pressure roller 1 (39), the pressure roller 2 (38) and the lower pressure roller can be adjusted to 3-15mm.

3. The upper pressure roller assembly of the upper and lower paper pressing mechanism based on carton forming according to claim 2, characterized in that: The mounting plate (22) is fixed to the upper movable wall plate (1). The belt tensioning wheel pin (21) passes through the mounting plate (22) and is rotatably connected to the tensioning roller (13). The adjusting rod (25) passes through the mounting plate (23) with tensioning screw and the first movable adjusting connecting plate (27). By rotating the hexagonal nut (26), the mounting plate (23) with tensioning screw can be moved, thereby adjusting the tension of the belt (73).

4. The upper pressure roller assembly of the upper and lower paper pressing mechanism based on carton forming according to claim 3, characterized in that: The rotating shaft (36) is mounted on the pressure roller swing arm 1 (34) and the paper pressing swing arm 2 (41) via tapered roller bearing (37) and second spacer (35). The pressing wheel 1 (39) and pressing wheel 2 (38) are respectively fixed at both ends of the rotating shaft (36), and their outer circumferential surfaces are provided with raised grooves. The drive wheel (16) and the pressing drive wheel (17) are coaxially mounted on the first bearing seat (18) and are connected to the drive synchronous wheel (56) via belt (73).

5. The upper pressure roller assembly of the upper and lower paper pressing mechanism based on carton forming according to claim 4, characterized in that: The tensioner swing arm (48) is assembled to the tensioner shaft (53) via the third spacer (49), the fourth spacer (50) and the first tapered roller bearing support (51), and is locked by the first radial locking nut (52).

6. The upper pressure roller assembly of the upper and lower paper pressing mechanism based on carton forming according to claim 5, characterized in that: The connector (60) is installed on the cylinder seat (61), and its output end is connected to the belt lifting plate (72) through the connecting plate (65). The first spring (67) and the second spring (68) are located in the slider mounting seat (69) to provide pressure buffer. The belt lifting plate (72) is hinged to the second movable adjusting connecting plate (70) through the second transition pin (71), which can drive the belt (73) to move up and down.

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