Linkage type corrugated paper precise flattening device

Abstract

The linkage type corrugated paper precise flattening device comprises a supporting assembly, the supporting assembly comprises a supporting body, a supporting seat, a supporting frame, a top plate, a transverse plate and bases, the four bases are symmetrically arranged below the four corners of the supporting body, the supporting seat is arranged above the middle of the supporting body, and the supporting frame is arranged above the periphery of the supporting body; the top plates are connected with the tops of the supporting frames. The transverse plates are connected with the adjacent bases. The horizontal sliding assembly comprises a first horizontal sliding assembly and a second horizontal sliding assembly which are symmetrically arranged on the two sides of the supporting base, the horizontal sliding assembly on each side comprises two parallel sliding rails, and the sliding blocks are in sliding fit with the sliding rails. According to the linkage type corrugated paper precise flattening device, through the cooperative action of horizontal clamping of the T-shaped blocks and vertical locking of the fixing columns, rigid constraint of the four sides of corrugated paper is achieved, transmission of the ball screws is matched with guiding of the linear guide rails, and the precision of the vertical movement track of the pressing plate is guaranteed; and the elastic pressure pad uniformly disperses pressure to prevent indentation on the surface of the corrugated paper.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging material processing equipment, and in particular to a linkage type corrugated paper precision flattening device. Background Art

[0002] During the production and processing of corrugated cardboard, due to factors such as changes in the humidity of raw materials, uneven stacking pressure, or transportation vibration, the corrugated cardboard is prone to defects such as edge warping and surface unevenness. Traditional flattening devices usually adopt the following technical solutions, but there are still significant limitations: insufficient clamping stability: the edges of the corrugated paper are prone to shift during the flattening process, resulting in uneven flattening; low pressure control accuracy: the response speed of the hydraulic system is slow and the pressure value fluctuates greatly; limited automation: there is a lack of closed-loop feedback control for the stroke of the pressing plate and the clamping force.

[0003] To solve the above problems, the industry has tried the following improvement solutions, but still has not completely overcome the technical bottlenecks. Double-sided clamping design: Clamping mechanisms are added on both sides of the corrugated paper. Although it can reduce the shift, it does not achieve synchronous fixation of the four sides, and there are still local warps after flattening; Servo motor drive: replacing the hydraulic system to improve control accuracy, but not combined with a high-rigidity transmission structure, it is difficult to ensure the stability of the vertical movement of the pressing plate; Sensor feedback: Introducing a pressure sensor to monitor the flattening force, but due to the insecure clamping and fixation, the sensor data is easily interfered by the displacement of the corrugated paper. Summary of the Invention

[0004] The purpose of the present invention is to provide a linkage type corrugated paper precision flattening device, which realizes the rigid constraint of the four sides of the corrugated paper through the coordinated actions of the horizontal clamping of the T-shaped block and the vertical locking of the fixed column, and the ball screw drive is combined with the linear guide rail to ensure the accuracy of the vertical movement trajectory of the pressing plate; the elastic pressure pad evenly disperses the pressure to prevent indentations on the surface of the corrugated paper.

[0005] The present invention provides a linkage type corrugated paper precision flattening device, including a support assembly. The support assembly includes a support main body, a support seat, a support frame, a top plate, a cross plate, and a base. Four bases are symmetrically arranged below the four corners of the support main body. The support seat is arranged above the middle of the support main body. The support frame is arranged above the periphery of the support main body. The top plate is connected to the top of the support frame. The cross plate is connected to adjacent bases;

[0006] The horizontal sliding assembly includes a first horizontal sliding assembly and a second horizontal sliding assembly symmetrically arranged on both sides of the support seat. Each side of the horizontal sliding assembly includes two parallel slide rails, and the slider is slidably matched with the slide rail. A connecting block is fixedly connected above the slider. A T-shaped block is arranged above the connecting block. The connecting block is at the same horizontal height as the support seat, and the height of the T-shaped block is higher than that of the support seat;

[0007] The vertical sliding assembly includes a servo motor, a coupling, a lead screw nut, a ball screw, a nut seat, linear guides, and a pressing plate. The servo motor is provided on the top plate. The coupling is connected to the servo motor. The lead screw nut is sleeved on the ball screw. The lead screw nut is fixedly connected to the nut seat. The linear guides are symmetrically arranged on both sides of the ball screw. The pressing plate is connected to the nut seat through a fixing rod.

[0008] Slots are provided at the corresponding positions of the T-shaped block and the support frame. The pressing plate moves vertically under the drive of the servo motor to flatten the corrugated paper on the support seat.

[0009] Preferably, the bases are connected into a rectangular frame structure through cross plates. The cross plates and the bases are fixed by welding or bolts.

[0010] Preferably, a linear motor is embedded in the slide rail of the horizontal sliding assembly. The mover of the linear motor is rigidly connected to the slider, driving the T-shaped block to move towards or away from each other along the slide rail.

[0011] Preferably, the ball screw is arranged parallel to the linear guide. The slider of the linear guide is rigidly connected to the nut seat through a connecting member.

[0012] Preferably, an elastic pressing pad is provided at the bottom of the pressing plate. The material of the elastic pressing pad is silicone or polyurethane.

[0013] Preferably, the slot is a rectangular through hole, with a size that fits the clearance of the fixing column. Threaded portions are provided at both ends of the fixing column and are fastened to the outside of the support frame through nuts.

[0014] Preferably, a photoelectric sensor is provided on the top plate. The photoelectric sensor is signal-connected to the control system of the servo motor.

[0015] Preferably, vacuum suction holes are provided on the surface of the support seat. The vacuum suction holes are connected to a vacuum pump through pipelines for adsorbing and fixing the corrugated paper.

[0016] Therefore, the present invention adopts the above-mentioned linkage type corrugated paper precision flattening device. Through the coordinated actions of horizontal clamping by the T-shaped block and vertical locking by the fixing column, rigid constraints on the four sides of the corrugated paper are achieved. The ball screw drive is combined with the linear guide for orientation, ensuring the accuracy of the vertical movement trajectory of the pressing plate. The elastic pressing pad evenly disperses the pressure to prevent indentations on the surface of the corrugated paper.

[0017] Next, through the drawings and embodiments, the technical solutions of the present invention will be further described in detail. Description of the Drawings

[0018] Figure 1 It is the overall schematic diagram of the support assembly of a linkage type corrugated paper precision flattening device of the present invention;

[0019] Figure 2 It is the structural schematic diagram of the first horizontal sliding assembly of a linkage type corrugated paper precision flattening device of the present invention;

[0020] Figure 3 This is a schematic diagram of the overall external structure of a linkage type precision corrugated paper flattening device of the present invention;

[0021] Figure 4 This is a schematic diagram of the overall structure of the vertical sliding assembly of a linkage type precision corrugated paper flattening device of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the second slider and the second slide rail in the vertical sliding assembly of a linkage type precision corrugated paper flattening device of the present invention.

[0023] Reference numerals

[0024] 1, support main body; 2, support seat; 3, support frame; 4, top plate; 5, cross plate; 6, base; 7, first slide rail; 8, first slider; 9, connecting block; 10, T-shaped block; 11, servo motor; 12, coupling; 13, lead screw nut; 14, ball screw; 15, nut seat; 16, linear guide rail; 17, pressing plate; 18, fixed rod; 19, slot; 20, linear motor; 21, elastic pressing pad; 22, second slide rail; 23, second slider; 24, extension plate. Detailed implementation manners

[0025] The technical solutions of the present invention will be further described below with reference to the drawings and embodiments.

[0026] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the ordinary meanings understood by those of ordinary skill in the field to which the present invention belongs.

[0027] The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "comprising" or "including" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right" are only used to represent relative position relationships, and when the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0028] Embodiment 1

[0029] As Figures 1 - 5As shown in the figure, a linkage type precision corrugated paper flattening device of the present invention includes a support assembly, which includes a support main body 1, a support base 2, a support frame 3, a top plate 4, a cross plate 5 and a base 6. Four bases 6 are symmetrically arranged below the four corners of the support main body 1. The support base 2 is arranged above the middle of the support main body 1. The support frame 3 is arranged above the periphery of the support main body 1. The top plate 4 is connected to the top of the support frame 3. The cross plate 5 is connected to the adjacent bases 6.

[0030] The horizontal sliding assembly includes a first horizontal sliding assembly and a second horizontal sliding assembly symmetrically arranged on both sides of the support base 2. Each side of the horizontal sliding assembly includes two parallel first slide rails 77. The first slider 8 is slidably matched with the first slide rail 77. A connecting block 9 is fixedly connected above the first slider 8. A T-shaped block 10 is arranged above the connecting block 9. The connecting block 9 is at the same horizontal height as the support base 2. The height of the T-shaped block 10 is higher than that of the support base 2. A linear motor 20 is arranged on the extension plate 24.

[0031] The vertical sliding assembly includes a servo motor 11, a coupling 12, a lead screw nut 13, a ball screw 14, a nut seat 15, a linear guide rail 16 and a pressing plate 17. The servo motor 11 is arranged on the top plate 4. The coupling 12 is connected to the servo motor 11. The lead screw nut 13 is sleeved on the ball screw 14. The lead screw nut 13 is fixedly connected to the nut seat 15. The linear guide rails 16 are symmetrically arranged on both sides of the ball screw 14. The pressing plate 17 is connected to the nut seat 15 through a fixing rod 18;

[0032] Grooves 19 are arranged at the corresponding positions of the T-shaped block 10 and the support frame 3. The pressing plate 17 moves vertically under the drive of the servo motor 11 to flatten the corrugated paper on the support base 2.

[0033] The bases 6 are connected into a rectangular frame structure through the cross plate 5. The cross plate 5 and the bases 6 are fixed by welding or bolts.

[0034] A linear motor 20 is embedded in the first slide rail 7 of the horizontal sliding assembly. The mover of the linear motor 20 is rigidly connected to the first slider 8 to drive the T-shaped block 10 to move towards or away from each other along the first slide rail 7.

[0035] The ball screw 14 and the linear guide rail 16 are arranged in parallel. The second slider 23 of the linear guide rail 16 is rigidly connected to the nut seat 15 through a connecting member. The second slider 23 is slidably connected to the second slide rail 22.

[0036] An elastic pressing pad 21 is arranged at the bottom of the pressing plate 17. The material of the elastic pressing pad 21 is silica gel or polyurethane. The groove 19 is a rectangular through hole, and its size is in clearance fit with the fixing column. Threaded parts are arranged at both ends of the fixing column and are fastened to the outside of the support frame 3 through nuts. An optoelectronic sensor is arranged on the top plate 4, and the optoelectronic sensor is signal-connected to the control system of the servo motor 11.

[0037] The support main body 1 is welded into a rectangular frame structure with high-strength steel plates, and transverse and longitudinal stiffening plates are arranged inside the frame to improve the overall rigidity; square bases 6 are symmetrically installed at the four corners of the bottom of the frame, and anchor bolt installation holes are provided at the bottom of the bases 6 for fixing the equipment to the ground.

[0038] Connection structure of the base 6: Adjacent bases 6 are connected by a cross plate 5 made of channel steel, and the cross plate 5 and the base 6 are fixed by welding or high-strength bolts to form a stable rectangular support frame. Support seat 2 and support frame 3: The support seat 2 is located above the central area of the support main body 1, and an array of vacuum suction holes is provided on the surface. The vacuum suction holes are connected to an external vacuum pump through pipelines for adsorbing and fixing corrugated paper; vertical columns are installed vertically around the support main body 1 to form the support frame 3, and the top of the columns is connected by a top plate 4. A through hole is opened in the central area of the top plate 4 for installing a driving motor.

[0039] Two groups of horizontal sliding components are symmetrically installed on both sides of the support seat 2. Each group of components includes two parallel high-precision linear guide rails, and a first slider 8 is configured on the linear guide rails. A connecting block 9 is fixedly connected above the first slider 8 by bolts, and a T-shaped clamping block is vertically installed on the top of the connecting block 9. The height of the T-shaped clamping block is higher than the surface of the support seat 2 to ensure that the corrugated paper edge can be completely covered during clamping.

[0040] A linear motor is integrated inside the linear guide rail 16, and the motor mover is rigidly connected to the first slider 8. The two first sliders 8 on both sides are synchronously driven by a controller to move towards or away from each other along the guide rail. A rectangular slot 19 is opened on the side of the T-shaped clamping block. Slots 19 with the same size are provided at the corresponding positions of the support frame 3 for inserting fixing columns and locking with nuts to form a rigid constraint on the four sides of the corrugated paper.

[0041] A servo motor 11 is installed on the top plate 4. The output shaft of the motor is connected to a ball screw 14 through an elastic coupling 12. The two ends of the ball screw 14 are supported by angular contact bearings on the top plate 4 and the bottom bearing seat. The screw nut 13 of the ball screw 14 is fixedly connected to the nut seat 15, and high-rigidity linear guide rails 16 are symmetrically installed on both sides of the nut seat 15. The second slider 23 of the linear guide rail 16 is rigidly connected to the nut seat 15 through a connecting piece to ensure the vertical accuracy of the movement track of the pressing plate 17.

[0042] The pressing plate 17 is a strip-shaped steel plate structure, and an elastic gasket 21 is bonded to the bottom. The gasket material is silicone or polyurethane, and anti-slip patterns are processed on the surface to increase the contact friction force. The pressing plate 17 is connected to the nut seat 15 through two rigid fixing rods 18, and both ends of the fixing rods 18 are fixed by a flange locking mechanism to prevent the pressing plate 17 from deflecting during movement.

[0043] A non-contact photoelectric sensor is installed on the top plate 4, and the emitting end and the receiving end of the sensor are respectively located on both sides of the moving path of the pressing plate 17. The pressing position of the pressing plate 17 is detected in real time and the signal is fed back to the control system of the servo motor 11 to realize the closed-loop control of the stroke of the pressing plate 17.

[0044] A high-strength steel frame and a ball screw 14 drive system are adopted. The flattening pressure can be accurately adjusted through the torque parameters of the servo motor 11, which is suitable for the batch flattening operation of corrugated cardboard with conventional thickness. The four-side synchronous clamping mechanism effectively eliminates the warping of the edges of the corrugated paper, and the flatness error after flattening is less than the industry standard requirements. The bottom of the pressing plate 17 is replaced with a high-elastic polyurethane pressing pad to reduce the local pressure and prevent indentation on the surface of thin corrugated paper; the vacuum adsorption system adopts multi-stage negative pressure control to adapt to the adsorption requirements of cardboard with different grammages.

[0045] The overall working method: Place the corrugated paper on the support base 2, and the first sliders 8 and the first slide rails 7 in the first horizontal sliding assembly and the second horizontal sliding assembly start to slide. The first slider 8 is embedded in the connecting block 9, and a T-shaped block 10 is provided above the connecting block 9. The T-shaped block 10 moves under the action of the connecting block 9. Since the horizontal height of the T-shaped block 10 is higher than that of the support base 2, and the horizontal height of the connecting block 9 is the same as that of the support base 2, the T-shaped blocks 10 in the first horizontal sliding assembly and the second horizontal sliding assembly slide towards each other to fix the corrugated board through the T-shaped block 10.

[0046] The T-shaped block 10 is provided with a slot 19, and the support frame 3 is provided with a corresponding slot 19. After the corrugated board is fixed by the T-shaped blocks 10 on both sides, the fixing column penetrates through the slots 19 of the support frame 3 and the T-shaped block 10 to fix the other two sides of the corrugated board.

[0047] A vertical sliding assembly is provided on the top plate 4. The second slider 23 in the vertical sliding assembly moves to drive the platform plate to move. The side platform plate is connected to the pressing plate 17 through the fixing column, so that the pressing plate 17 can move vertically up and down. The pressing plate 17 is located directly above the corrugated board to flatten the corrugated board.

[0048] Placement and preliminary fixing of corrugated paper: Step 1.1 Feeding: Horizontally place the corrugated paper to be flattened on the surface of the support base 2. The vacuum suction holes on the surface of the support base 2 generate negative pressure through the vacuum pump to adsorb the bottom of the corrugated paper to prevent its initial position from shifting. Step 1.2 Horizontal clamping preparation: The first horizontal sliding assembly and the second horizontal sliding assembly are started, and the linear motor 20 in the first slide rail 7 drives the first slider 8 to slide along the first slide rail 7. The first slider 8 drives the connecting block 9 and the T-shaped block 10 above it to move synchronously.

[0049] Four-sided horizontal clamping and fixing: Step 2.1 Lateral clamping: The T-shaped blocks 10 in the first horizontal sliding component and the second horizontal sliding component move towards each other under the drive of the linear motor 20. Since the horizontal height of the T-shaped block 10 is higher than the surface of the support base 2, and the connecting block 9 is at the same height as the support base 2, after the T-shaped block 10 moves above the two side edges of the corrugated paper, it moves downward to abut against the side edges of the corrugated paper, completing the clamping on both sides. Step 2.2 Four-way locking: Matching slots 19 are provided at the corresponding positions on the side surfaces of the T-shaped blocks 10 and the support frames 3. When the two side T-shaped blocks 10 are clamped in place, the fixing columns are sequentially inserted into the slots 19 of the support frames 3 and the T-shaped blocks 10, passing through the other two sides of the corrugated paper. The two ends of the fixing columns are locked by nuts, so that the four sides of the corrugated paper are completely constrained, forming a rigid fixing structure.

[0050] Step 3.1 The pressure plate 17 presses down, the servo motor 11 on the top plate 4 starts, drives the ball screw 14 to rotate through the coupling 12, and the screw nut 13 of the ball screw 14 drives the nut seat 15 to move downward along the vertical direction. The nut seat 15 is rigidly connected to the pressure plate 17 through the fixing rod 18, driving the pressure plate 17 to move vertically downward to the surface of the corrugated paper.

[0051] After the elastic pressure pad 21 at the bottom of the pressure plate 17 contacts the corrugated paper, the servo motor 11 continuously applies pressure according to the preset pressure value or displacement value, and maintains the pressure for a certain time to eliminate the internal stress of the corrugated paper. The photoelectric sensor real-time monitors the downward stroke of the pressure plate 17. If it detects that the pressure plate 17 exceeds the stroke threshold, it immediately feeds back a signal to the control system to trigger an emergency stop.

[0052] Reset and unloading: Step 4.1 Reset of the pressure plate 17: After the flattening is completed, the servo motor 11 reverses to drive the ball screw 14, and the pressure plate 17 rises uniformly along the linear guide 16 to the initial position. Step 4.2 Release of fixation: Loosen the nuts at both ends of the fixing column, pull out the fixing column, release the locking of the four sides of the corrugated paper, and the linear motor 20 drives the T-shaped block 10 to move in the reverse direction and reset to the initial position.

[0053] Step 4.3 Unloading: Turn off the vacuum pump, release the adsorption state of the corrugated paper, take out the flattened corrugated paper, and complete a single operation cycle. Four-way linkage fixation: Through the coordinated actions of horizontal clamping by the T-shaped blocks 10 and vertical locking by the fixing columns, rigid constraints on the four sides of the corrugated paper are achieved, avoiding displacement or warping during the flattening process. High-precision flattening: The transmission of the ball screw 14 is matched with the guidance of the linear guide 16 to ensure the accuracy of the vertical movement trajectory of the pressure plate 17; the elastic pressure pad 21 evenly disperses the pressure to prevent indentations on the surface of the corrugated paper. Fast cycle operation: The action sequences of each module are closely connected, and the clamping, flattening, and reset processes are efficient and coherent, meeting the requirements of continuous production.

[0054] Therefore, the present invention adopts the above-mentioned linkage type corrugated paper precision flattening device. Through the coordinated actions of horizontal clamping by the T-shaped block and vertical locking by the fixing column, rigid constraints on the four sides of the corrugated paper are achieved, avoiding displacement or warping during the flattening process. The ball screw drive is combined with the linear guide rail 16 for guiding to ensure the accuracy of the vertical movement trajectory of the pressing plate. The elastic pressing pad evenly disperses the pressure to prevent indentation on the surface of the corrugated paper. The action sequences of each module are closely connected, and the processes of clamping, flattening, and resetting are efficient and coherent, meeting the requirements of continuous production.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions of the present invention or make equivalent substitutions, and these modifications or equivalent substitutions cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A corrugated paper flattening device, characterized in that, It includes a support component, which comprises a support body, a support base, support frames, a top plate, a cross plate and a base. Four bases are symmetrically arranged under the four corners of the support body. The support base is arranged above the middle of the support body. The support frames are arranged above the four sides of the support body. The top plate is connected to the tops of the support frames. The cross plate is connected to adjacent bases. The horizontal sliding component includes a first horizontal sliding component and a second horizontal sliding component symmetrically arranged on both sides of the support base. Each side of the horizontal sliding component comprises two parallel sliding rails. A slider is in sliding fit with the sliding rail. A connecting block is fixedly connected above the slider. A T-shaped block is arranged above the connecting block. The connecting block is at the same horizontal height as the support base. The height of the T-shaped block is higher than that of the support base. The vertical sliding component includes a servo motor, a coupling, a lead screw nut, a ball screw, a nut seat, linear guides and a pressing plate. The servo motor is arranged on the top plate. The coupling is connected to the servo motor. The lead screw nut is sleeved on the ball screw. The lead screw nut is fixedly connected to the nut seat. The linear guides are symmetrically arranged on both sides of the ball screw. The pressing plate is connected to the nut seat through a fixing rod. Slots are provided at corresponding positions of the T-shaped block and the support frame. The pressing plate moves vertically under the drive of the servo motor to flatten the corrugated paper on the support base.

2. The linkage type corrugated paper precision flattening device according to claim 1, wherein The bases are connected into a rectangular frame structure through the cross plate. The cross plate and the base are fixed by welding or bolts.

3. A linkage type corrugated paper precision flattening device according to claim 1, characterized in that, A linear motor is embedded in the sliding rail of the horizontal sliding component. The mover of the linear motor is rigidly connected to the slider to drive the T-shaped block to move towards or away from each other along the sliding rail.

4. A linkage type corrugated paper precision flattening device according to claim 1, characterized in that, The ball screw is arranged parallel to the linear guide. The slider of the linear guide is rigidly connected to the nut seat through a connecting piece.

5. A linkage type corrugated paper precision flattening device according to claim 1, characterized in that, An elastic pressing pad is arranged at the bottom of the pressing plate. The elastic pressing pad is made of silicone or polyurethane.

6. The linkage type corrugated paper precision flattening device according to claim 1, characterized in that, The slot is a rectangular through hole, and its size has a clearance fit with the fixing column. Threaded portions are provided at both ends of the fixing column and are fastened to the outside of the support frame through nuts.

7. A linkage type corrugated paper precision flattening device according to claim 1, characterized in that, An optoelectronic sensor is arranged on the top plate. The optoelectronic sensor is signal-connected to the control system of the servo motor.

8. A linkage type corrugated paper precision flattening device according to claim 1, characterized in that, Vacuum suction holes are arranged on the surface of the support base. The vacuum suction holes are connected to a vacuum pump through pipelines and are used for adsorbing and fixing the corrugated paper.

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