Cracking-resistant corrugated board along-pit forming line pressing execution device

Abstract

The utility model relates to an anti-crack corrugated board along-pit forming and line pressing execution device, and belongs to the technical field of anti-crack corrugated board along-pit forming and line pressing, the anti-crack corrugated board along-pit forming and line pressing execution device comprises a frame, fixing blocks are fixed to the left end and the right end of the upper surface of the frame, and a threaded rod is rotationally connected between the opposite sides of the two fixing blocks through a bearing; a rotating motor is fixed to the right side of the fixing block on the right side, an output shaft of the rotating motor penetrates through the fixing block on the right side, extends to the left side of the fixing block on the right side and is fixed to a threaded rod, and the outer surface of the threaded rod is in threaded connection with a threaded sleeve. According to the anti-crack corrugated board along-pit forming line pressing execution device, a plurality of subsystems such as the frame, the driving unit, the line pressing unit and the control system are integrated, it is ensured that constant linear pressure is kept in the whole line pressing process through precise rotating motor control, efficient elastic supporting design and a visual operation interface, the cracking rate is remarkably reduced, and the production efficiency is improved. The qualified rate of products is improved, and the production efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of anti-crack corrugated cardboard flue forming and pressing technology, specifically an anti-crack corrugated cardboard flue forming and pressing execution device. Background Technology

[0002] Corrugated cardboard is a multi-layered adhesive, consisting of at least one layer of corrugated core paper and one layer of cardboard. It has high mechanical strength and can withstand collisions and drops during handling. The actual performance of corrugated cardboard depends on three factors: the characteristics of the core paper and the cardboard, and the structure of the carton itself.

[0003] A search revealed Chinese Patent Publication No. CN207416104U, which discloses a novel corrugated cardboard flat-pressing device. The device includes a base plate, with lower plates fixed to both ends of the upper surface of the base plate. A second transmission device is installed between the two lower plates. The power input shaft on the left side of the second transmission device and the output shaft of a second stepper motor are connected via a coupling. The second stepper motor is fixed to the front side of the front lower plate via a fixing bracket. Upper plates are fixed to the upper parts of the opposite sides of the two lower plates via connecting devices. The two upper plates are located directly above their respective lower plates. A first transmission device is installed between the upper and lower plates. The lower and upper pressure belts gradually apply pressure to the corrugated cardboard, resulting in good stability in the corrugated cardboard creasing process. The distance between the first and second transmission devices and the tilt angle of the first transmission device are adjustable, which improves the applicability of this new type of corrugated cardboard flat creasing device. However, when creasing corrugated cardboard of different thicknesses, the height of the upper rollers still needs to be adjusted using limiting bolts and limiting blocks, which requires frequent adjustments by the workers, increasing their labor intensity and reducing its practicality. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a crack-resistant corrugated cardboard forming and pressing device, which has the advantages of low cracking risk. It solves the problem that when pressing corrugated cardboard of different thicknesses, it is still necessary to adjust the height of the upper roller through limit bolts and limit blocks, which requires frequent adjustments by the staff, increases the labor intensity of the staff, and reduces the practicality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a crack-resistant corrugated cardboard forming and pressing device, comprising a frame, with fixed blocks fixed at both ends of the upper surface of the frame, and a threaded rod rotatably connected between the opposite sides of the two fixed blocks via bearings, a rotating motor fixed to the right side of the right fixed block, the output shaft of the rotating motor passing through the right fixed block and extending to the left side of the right fixed block and fixed to the threaded rod, a threaded sleeve being threadedly connected to the outer surface of the threaded rod, a fixed frame provided in the inner cavity of the frame, pressing mechanisms for pressing lines provided at the top and bottom of the inner cavity of the fixed frame, and replacement mechanisms provided at the upper and lower ends between the opposite sides of the left and right side walls of the inner cavity of the frame;

[0006] The pressing mechanism includes two fixed plates, multiple spring telescopic rods, a first connecting seat, a second connecting seat, an upper pressing roller, a lower pressing roller, and a drive motor. The two fixed plates are located at the top and bottom of the inner cavity of the fixed frame. The spring telescopic rods are fixed to the lower surface of the upper fixed plate. The first connecting seat is fixed to the lower surface of the spring telescopic rods. The second connecting seat is fixed to the upper surface of the lower fixed plate. The upper pressing roller is rotatably connected between the opposite sides of the front and rear side walls of the inner cavity of the first connecting seat via bearings. The lower pressing roller is rotatably connected between the opposite sides of the front and rear side walls of the inner cavity of the second connecting seat via bearings. The drive motor is fixed to the front of the second connecting seat.

[0007] By adopting this technical solution, multiple subsystems such as the frame, drive unit, pressing unit, and control system are integrated. Through precise rotation motor control, efficient elastic support design, and intuitive operation interface, constant linear pressure is maintained throughout the pressing process. This not only significantly reduces the cracking rate and improves the product qualification rate, but also greatly improves production efficiency.

[0008] Furthermore, a connecting rod is fixed to the lower side of the threaded sleeve, and a through hole is opened on the upper surface of the frame. The lower surface of the connecting rod passes through the through hole and extends to the lower side of the through hole and is fixed to the upper surface of the fixed frame.

[0009] By adopting this technical solution, the connecting rod can drive the fixed frame to move when the screw sleeve moves, thereby enabling the pressure unit to move.

[0010] Furthermore, a sliding groove is provided on the inner bottom wall of the frame, and a slider is fixed on the lower surface of the fixed frame. The slider moves horizontally in the inner cavity of the sliding groove.

[0011] By adopting this technical solution, the set slide and slider can limit the movement of the bottom of the fixed frame.

[0012] Furthermore, multiple spring telescopic rods are evenly distributed between the upper fixed plate and the side opposite to the first connecting seat, and the output shaft of the drive motor passes through the second connecting seat and extends into the inner cavity of the second connecting seat and is fixed to the lower pressure roller.

[0013] By adopting this technical solution, uniform stress is achieved on corrugated cardboard during the crimping process.

[0014] Furthermore, the replacement mechanism includes a bidirectional screw, two movable sleeves, a limiting rod, two limiting sleeves, two drive plates, two linkage plates, and four locking blocks. The bidirectional screw is rotatably connected between the opposite sides of the left and right side walls of the frame cavity via bearings. The movable sleeves are threadedly connected to the bidirectional screw. The limiting rods are fixed at the bottom between the opposite sides of the left and right side walls of the frame cavity. The limiting sleeves are slidably connected to the limiting rods. The drive plates are fixed to the lower surface of the movable sleeves. The two linkage plates are fixed at the bottom of the opposite sides of the two drive plates. The four locking blocks are distributed in pairs at the upper and lower ends of the bottom of the opposite sides of the two linkage plates.

[0015] By adopting this technical solution, the upper and lower pressure rollers can be easily replaced through the set replacement mechanism, thereby enabling the device to handle a wider range of paperboard types for creasing operations. This allows the device to flexibly meet the needs of different customers and improves its practicality.

[0016] Furthermore, the left side of the bidirectional screw penetrates the left side wall of the inner cavity of the frame and extends to the left side of the frame, and the two movable sleeves are symmetrically distributed on the left and right sides of the vertical central axis of the bidirectional screw.

[0017] By adopting this technical solution, it becomes easier for staff to drive the rotation of the bidirectional screw.

[0018] Furthermore, the lower surface of the limiting sleeve is fixed to the upper surface of the linkage plate, the cross-sectional shape of the linkage plate is an inverted L shape, and guide holes adapted to the size of the linkage plate are provided at the top and bottom of both sides of the frame.

[0019] By adopting this technical solution, the movement of the movable sleeve can be limited by the limiting sleeve and the limiting rod, so that the movable sleeve can only move in a straight line.

[0020] Furthermore, a fixing hole larger than the outer diameter of the limiting rod is provided on the left side of the linkage plate, and slots are provided on the top and bottom of both sides of the fixing plate, with the inner size of the slot cavity matching the size of the card block.

[0021] By adopting this technical solution, the set card blocks and card slots can position the fixed plate, thereby fixing the fixed plate to the fixed frame.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] 1. This anti-crack corrugated cardboard forming and pressing device integrates multiple subsystems such as frame, drive unit, pressing unit and control system. Through precise rotation motor control, efficient elastic support design and intuitive operation interface, it ensures constant linear pressure throughout the pressing process, which not only significantly reduces the cracking rate and improves the product qualification rate, but also greatly improves production efficiency.

[0024] 2. The anti-crack corrugated cardboard forming and pressing device has a set replacement mechanism that allows for easy replacement of the upper and lower pressure rollers, thus enabling it to handle a wider range of cardboard types for pressing operations. This allows the device to flexibly meet the needs of different customers and improves its practicality. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the wire pressing mechanism of this utility model;

[0027] Figure 3 This is a side view schematic diagram of part of the pressing mechanism structure of this utility model;

[0028] Figure 4 This is a schematic diagram of the disassembly and replacement mechanism of this utility model.

[0029] In the diagram: 1. Frame; 2. Fixing block; 3. Threaded rod; 4. Rotating motor; 5. Screw sleeve; 6. Fixing frame; 7. Pressing mechanism; 71. Fixing plate; 72. Spring telescopic rod; 73. First connecting seat; 74. Second connecting seat; 75. Upper pressure roller; 76. Lower pressure roller; 77. Drive motor; 8. Replacement mechanism; 81. Bidirectional screw; 82. Movable sleeve; 83. Limiting rod; 84. Limiting sleeve; 85. Drive plate; 86. Linkage plate; 87. Locking block. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1The anti-crack corrugated cardboard forming and pressing device in this embodiment includes a frame 1. Fixing blocks 2 are fixed at both ends of the upper surface of the frame 1. A threaded rod 3 is rotatably connected between the two opposite sides of the fixing blocks 2 through a bearing. A rotating motor 4 is fixed on the right side of the right fixing block 2. The output shaft of the rotating motor 4 passes through the right fixing block 2 and extends to the left side of the right fixing block 2 and is fixed to the threaded rod 3. A threaded sleeve 5 is threadedly connected to the outer surface of the threaded rod 3. A fixing frame 6 is provided in the inner cavity of the frame 1. A pressing mechanism 7 for pressing is provided at the top and bottom of the inner cavity of the fixing frame 6. A replacement mechanism 8 is provided at both the upper and lower ends between the opposite sides of the left and right side walls of the inner cavity of the frame 1.

[0032] In this embodiment, a connecting rod is fixed to the lower side of the threaded sleeve 5, and a through hole is opened on the upper surface of the frame 1. The lower surface of the connecting rod passes through the through hole and extends to the lower side of the through hole and is fixed to the upper surface of the fixed frame 6. A sliding groove is opened on the inner bottom wall of the frame 1, and a slider is fixed to the lower surface of the fixed frame 6. The slider moves horizontally in the inner cavity of the sliding groove. The output shaft of the rotating motor 4 rotates and drives the threaded rod 3 to rotate, thereby causing the threaded sleeve 5 to move the fixed frame 6, so that the pressing unit moves smoothly to the designated position.

[0033] It should be noted that the frame 1 includes a control system, which is integrated on one side of the frame 1 and equipped with a touch screen operation interface. It supports functions such as parameter setting and real-time monitoring. The rotating motor 4 is model SM-50L with a rated power of 0.75kW and a maximum speed of 3000r / min, which can meet the requirements of high-speed continuous operation. The threaded rod 3 has a diameter of 40mm and a pitch of 8mm, which has high transmission efficiency and positioning accuracy.

[0034] Please see Figures 2 to 3 To ensure constant linear pressure throughout the creasing process, the creasing mechanism 7 in this embodiment includes two fixed plates 71, multiple spring telescopic rods 72, a first connecting seat 73, a second connecting seat 74, an upper pressure roller 75, a lower pressure roller 76, and a drive motor 77. The two fixed plates 71 are located at the top and bottom of the inner cavity of the fixed frame 6. The spring telescopic rods 72 are fixed to the lower surface of the upper fixed plate 71, the first connecting seat 73 is fixed to the lower surface of the spring telescopic rods 72, and the second connecting seat 74 is fixed to the upper surface of the lower fixed plate 71. The upper pressure roller 75 is rotatably connected between the opposite sides of the front and rear side walls of the inner cavity of the first connecting seat 73 via bearings. The lower pressure roller 76 is rotatably connected between the opposite sides of the front and rear side walls of the inner cavity of the second connecting seat 74 via bearings. Under the action of gravity, the upper pressure roller 75 contacts the lower pressure roller 76 to form a preset gap, waiting for the cardboard to enter. As the cardboard is conveyed, the drive motor 77 is fixed to the front of the second connecting seat 74.

[0035] As the cardboard is conveyed, the upper pressure roller 75 is subjected to pressure from the cardboard and transmitted to the fixed plate 71 through multiple spring telescopic rods 72. This causes the spring telescopic rods 72 to compress or extend, thereby dynamically adjusting the distance between the upper pressure roller 75 and the lower pressure roller 76 to maintain constant linear pressure. This ensures a consistent creasing effect regardless of changes in the thickness of the cardboard, effectively preventing cracking.

[0036] In this embodiment, multiple spring telescopic rods 72 are evenly distributed between the upper fixed plate 71 and the side opposite to the first connecting seat 73. The output shaft of the drive motor 77 passes through the second connecting seat 74 and extends into the inner cavity of the second connecting seat 74 and is fixed to the lower pressure roller 76. The rotation of the output shaft of the drive motor 77 drives the lower pressure roller 76 to rotate, thereby making the cardboard horizontally conveyed.

[0037] In addition, the upper pressure roller 75 and the lower pressure roller 76 are both 150mm in diameter, and their lengths are customized according to the width of the production equipment. The surfaces are chrome-plated to enhance hardness and smoothness. The spring telescopic rod 72 has a moderate coefficient and can be adjusted within the range of 5-20N / mm to ensure that the best pressing effect can be obtained for paperboards of different thicknesses.

[0038] It should be noted that maintaining a constant linear pressure throughout the entire pressing process not only significantly reduces the cracking rate and improves the product qualification rate, but also greatly improves production efficiency.

[0039] Please see Figure 4 To facilitate the replacement of the upper pressure roller 75 and the lower pressure roller 76, the replacement mechanism 8 in this embodiment includes a bidirectional screw 81, two movable sleeves 82, a limiting rod 83, two limiting sleeves 84, two drive plates 85, two linkage plates 86, and four locking blocks 87. The bidirectional screw 81 is rotatably connected between the opposite sides of the left and right side walls of the inner cavity of the frame 1 via bearings. The movable sleeves 82 are threadedly connected to the bidirectional screw 81. By rotating the bidirectional screw 81, the rotation of the bidirectional screw 81 causes the two movable sleeves 82 threadedly connected to its surface to move in opposite directions. The limiting rod 83 is fixed at the bottom between the opposite sides of the left and right side walls of the inner cavity of the frame 1. The limiting sleeves 84 are slidably connected to the limiting rod 83. The drive plate 85 is fixed to the lower surface of the movable sleeve 82, and the two linkage plates 86 are fixed to the bottom of the opposite side of the two drive plates 85. The movement of the movable sleeve 82 drives the drive plate 85 to move, and the movement of the drive plate 85 drives the linkage plate 86 and the locking block 87 to move. The movement of the linkage plate 86 causes the limiting sleeve 84 to move on the outer surface of the limiting rod 83, which can limit the movement of the movable sleeve 82. The four locking blocks 87 are distributed in pairs at the upper and lower ends of the bottom of the opposite side of the two linkage plates 86. The opposite movement of the left and right locking blocks 87 causes them to move out of the inner cavity of the locking slot, thereby releasing the limitation of the fixed plate 71. Then the fixed plate 71 can be removed and replaced with a pressure roller of appropriate specifications.

[0040] In this embodiment, the left side of the bidirectional screw 81 penetrates the left side wall of the inner cavity of the frame 1 and extends to the left side of the frame 1. Two movable sleeves 82 are symmetrically distributed on the left and right sides of the vertical central axis of the bidirectional screw 81. The lower surface of the limiting sleeve 84 is fixed to the upper surface of the linkage plate 86. The cross-sectional shape of the linkage plate 86 is an inverted L shape. Guide holes adapted to the size of the linkage plate 86 are opened at the top and bottom of the left and right sides of the frame 1.

[0041] The linkage plate 86 has a fixing hole on its left side that is larger than the outer diameter of the limit rod 83. The top and bottom of both sides of the fixing plate 71 have slots. The size of the slot cavity is adapted to the size of the slot block 87. The slot block 87 and the slot can position the fixing plate 71 so that the fixing plate 71 can be fixed to the fixing frame 6.

[0042] Understandably, by replacing the two pressure rollers, the device can handle a wider range of cardboard types for creasing operations, thus allowing it to flexibly meet the needs of different customers and improving its practicality.

[0043] The working principle of the above embodiments is as follows:

[0044] (1) By starting the rotating motor 4, the output shaft of the rotating motor 4 rotates and drives the threaded rod 3 to rotate, thereby causing the screw sleeve 5 to move the fixed frame 6, so that the creasing unit moves smoothly to the designated position. At this time, the upper pressure roller 75 contacts the lower pressure roller 76 under the action of gravity to form a preset gap, waiting for the paperboard to enter. As the paperboard is conveyed, the upper pressure roller 75 is subjected to pressure from the paperboard and transmitted to the fixed plate 71 through multiple spring telescopic rods 72, so that the spring telescopic rods 72 are compressed or extended accordingly, thereby dynamically adjusting the distance between the upper pressure roller 75 and the lower pressure roller 76, maintaining a constant linear pressure, so that a consistent creasing effect can be obtained regardless of the thickness of the paperboard, effectively preventing cracking.

[0045] (2) In order to cope with a wider range of cardboard types, it is convenient for staff to replace the upper pressure roller 75 and the lower pressure roller 76. By rotating the bidirectional screw 81, the rotation of the bidirectional screw 81 causes the two movable sleeves 82 connected to its surface to move in opposite directions. At this time, the movement of the movable sleeve 82 drives the drive plate 85 to move. The movement of the drive plate 85 drives the linkage plate 86 and the locking block 87 to move. The movement of the linkage plate 86 causes the limiting sleeve 84 to move on the outer surface of the limiting rod 83, which can limit the movement of the movable sleeve 82. The opposite movement of the locking blocks 87 at the left and right ends causes them to move out of the inner cavity of the slot, thereby releasing the limiting of the fixed plate 71. Then the fixed plate 71 can be removed and replaced with a pressure roller of appropriate specifications.

Claims

1. A crack-resistant corrugated cardboard forming and pressing device, comprising a frame (1), characterized in that: Fixed blocks (2) are fixed at both ends of the upper surface of the frame (1). A threaded rod (3) is rotatably connected between the two fixed blocks (2) on opposite sides via a bearing. A rotating motor (4) is fixed on the right side of the right fixed block (2). The output shaft of the rotating motor (4) passes through the right fixed block (2) and extends to the left side of the right fixed block (2) and is fixed to the threaded rod (3). A threaded sleeve (5) is threaded on the outer surface of the threaded rod (3). A fixed frame (6) is provided in the inner cavity of the frame (1). A wire pressing mechanism (7) for pressing wires is provided at the top and bottom of the inner cavity of the fixed frame (6). A replacement mechanism (8) is provided at both ends between the opposite sides of the left and right side walls of the inner cavity of the frame (1). The pressing mechanism (7) includes two fixed plates (71), multiple spring telescopic rods (72), a first connecting seat (73), a second connecting seat (74), an upper pressing roller (75), a lower pressing roller (76), and a drive motor (77). The two fixed plates (71) are located at the top and bottom of the inner cavity of the fixed frame (6). The spring telescopic rods (72) are fixed to the lower surface of the upper fixed plate (71). The first connecting seat (73) is fixed to the lower surface of the spring telescopic rods (72). The second connecting seat (74) is fixed to the upper surface of the lower fixed plate (71). The upper pressing roller (75) is rotatably connected between the front and rear side walls of the inner cavity of the first connecting seat (73) via bearings. The lower pressing roller (76) is rotatably connected between the front and rear side walls of the inner cavity of the second connecting seat (74) via bearings. The drive motor (77) is fixed to the front of the second connecting seat (74).

2. The anti-crack corrugated cardboard forming and pressing device according to claim 1, characterized in that: A connecting rod is fixed to the lower side of the threaded sleeve (5), and a through hole is opened on the upper surface of the frame (1). The lower surface of the connecting rod passes through the through hole and extends to the lower side of the through hole and is fixed to the upper surface of the fixing frame (6).

3. The anti-crack corrugated cardboard forming and pressing device according to claim 1, characterized in that: The inner bottom wall of the frame (1) is provided with a sliding groove, and the lower surface of the fixed frame (6) is fixed with a slider, which moves horizontally in the inner cavity of the sliding groove.

4. The anti-crack corrugated cardboard forming and pressing device according to claim 1, characterized in that: Multiple spring telescopic rods (72) are evenly distributed between the upper fixed plate (71) and the side opposite to the first connecting seat (73). The output shaft of the drive motor (77) passes through the second connecting seat (74) and extends into the inner cavity of the second connecting seat (74) and is fixed to the lower pressure roller (76).

5. The anti-crack corrugated cardboard forming and pressing device according to claim 1, characterized in that: The replacement mechanism (8) includes a bidirectional screw (81), two movable sleeves (82), a limiting rod (83), two limiting sleeves (84), two drive plates (85), two linkage plates (86), and four locking blocks (87). The bidirectional screw (81) is rotatably connected between the opposite sides of the left and right side walls of the inner cavity of the frame (1) through bearings. The movable sleeves (82) are threadedly connected to the bidirectional screw (81). The limiting rods (83) are fixed at the bottom between the opposite sides of the left and right side walls of the inner cavity of the frame (1). The limiting sleeves (84) are slidably connected to the limiting rods (83). The drive plates (85) are fixed on the lower surface of the movable sleeves (82). The two linkage plates (86) are fixed at the bottom of the opposite side of the two drive plates (85). The four locking blocks (87) are distributed in pairs at the upper and lower ends of the bottom of the opposite side of the two linkage plates (86).

6. The anti-crack corrugated cardboard forming and pressing device according to claim 5, characterized in that: The left side of the bidirectional screw (81) penetrates the left side wall of the inner cavity of the frame (1) and extends to the left side of the frame (1). The two movable sleeves (82) are symmetrically distributed on the left and right sides of the vertical central axis of the bidirectional screw (81).

7. The anti-crack corrugated cardboard forming and pressing device according to claim 5, characterized in that: The lower surface of the limiting sleeve (84) is fixed to the upper surface of the linkage plate (86). The cross-sectional shape of the linkage plate (86) is an inverted L shape. The top and bottom of the left and right sides of the frame (1) are provided with guide holes that are adapted to the size of the linkage plate (86).

8. The anti-crack corrugated cardboard forming and pressing device according to claim 5, characterized in that: The left side of the linkage plate (86) has a fixing hole larger than the outer diameter of the limit rod (83). The top and bottom of both sides of the fixing plate (71) have slots, and the size of the inner cavity of the slot is adapted to the size of the card block (87).

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