A paperboard flattening device

Abstract

This utility model provides a cardboard flattening device, relating to the technical field of cardboard flattening devices. The device includes an operating table with a gantry frame fixedly connected to it. A first cylinder is fixedly connected to the gantry frame, and a pressure plate is fixedly connected to the piston rod of the first cylinder. A sorting structure is provided on the operating table, mainly composed of four sorting blocks. Rubber blocks are fixedly connected to each sorting block. A second cylinder is fixedly connected to the gantry frame, and a rectangular block is fixedly connected to the piston rod of the second cylinder. A rectangular groove is formed in each rectangular block, and two sliding blocks are slidably connected to the rectangular groove. The sliding blocks are fixedly connected to the sorting blocks. A bidirectional screw is rotatably connected to the rectangular groove via a bearing. This utility model solves the problem that due to the limited precision of manual operation, it is difficult to ensure accurate alignment of each layer of cardboard, easily leading to unevenness in the flattened cardboard.

Description

Technical Field

[0001] This utility model relates to the technical field of cardboard flattening devices, and in particular to a cardboard flattening device. Background Technology

[0002] In the paperboard processing industry, paperboard flattening is a key pre-processing step that plays an important role in ensuring the quality of subsequent paperboard processing and finished products. With the rapid development of industries such as packaging and printing, the demand for paperboard is increasing day by day, and the requirements for paperboard flatness are becoming more and more stringent. In actual production, it is often necessary to flatten multiple layers of paperboard at the same time to improve production efficiency.

[0003] Staff often find that when using current cardboard flattening devices, most rely on manual alignment when processing multi-layer cardboard. The precision of manual operation is limited, making it difficult to ensure that each layer of cardboard is accurately aligned. This can easily lead to unevenness in the flattened cardboard, affecting product quality and reducing the product pass rate. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a cardboard flattening device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cardboard flattening device, including an operating table, a gantry frame fixedly connected to the operating table, a first cylinder fixedly connected to the gantry frame, a pressure plate fixedly connected to the piston rod of the first cylinder, and a sorting structure provided on the operating table, the sorting structure mainly consisting of four sorting blocks, with rubber blocks fixedly connected to the sorting blocks.

[0006] The effect achieved by the above components is as follows: the worker places the cardboard on the operating table, starts the first cylinder, the piston rod of the first cylinder drives the pressure plate to descend, flattening the cardboard. The four sorting blocks can be set at the four corners of the cardboard to limit the cardboard, which can make the multiple layers of cardboard aligned without repeated sorting. This avoids the problem that the accuracy of manual operation is limited, making it difficult to ensure that each layer of cardboard is accurately aligned, which can easily lead to unevenness in the flattened cardboard.

[0007] Preferably, a second cylinder is fixedly connected to the gantry frame, and a rectangular block is fixedly connected to the piston rod of the second cylinder. A rectangular groove is opened in the rectangular block, and two sliding blocks are slidably connected in the rectangular groove. The sliding blocks are fixedly connected to the sorting block.

[0008] The effect achieved by the above components is as follows: By using a programmable logic controller, the electromagnetic reversing valves of the two second cylinders are controlled by writing a program. At the same time, signals are sent to the two valves to make them simultaneously energized or de-energized, thereby controlling the action of the second cylinders. Simultaneously, the two second cylinders are started, and their piston rods drive the rectangular blocks to move synchronously. Then, the sliding block is slid, which drives the sorting block to move to the four corners of the cardboard. This allows for the sorting of cardboard of multiple sizes.

[0009] Preferably, a bidirectional screw is rotatably connected to the rectangular groove via a bearing, and the bidirectional screw is threadedly connected to two sliding blocks.

[0010] The effect achieved by the above components is that rotating the bidirectional screw can drive the two sliding blocks to slide synchronously, thereby positioning the cardboard in the middle of the operating table.

[0011] Preferably, a first motor is fixedly connected to the rectangular block, and the bidirectional screw is driven to rotate by the first motor.

[0012] The effect achieved by the above components is as follows: the output end of the first motor is connected to the bidirectional screw through a reducer and a coupling. When the first motor is started, it can drive the bidirectional screw to rotate, making the operation more convenient.

[0013] Preferably, the pressure plate is provided with a pressure roller structure, which mainly consists of two sliding grooves. Both sliding grooves are opened on the pressure plate, and sliders are slidably connected in the sliding grooves. A rectangular plate is fixedly connected to both sliders, and several flattening rollers are rotatably connected to the rectangular plate through bearings.

[0014] The effect achieved by the above components is that during the flattening process, the rectangular plate can be moved back and forth by sliding two sliders, so that the flattening roller rolls back and forth on the surface of the cardboard, further squeezing and smoothing the surface of the cardboard to improve the flattening effect.

[0015] Preferably, a connecting rod is fixedly connected to both sliders, and a limit block is fixedly connected to the connecting rod.

[0016] The effect achieved by the above components is that the connecting rod allows the two sliders to slide synchronously.

[0017] Preferably, a disc is rotatably connected to the pressure plate via a bearing, and a round rod is provided in the limiting block, with the disc and the round rod being fixedly connected.

[0018] The effect achieved by the above components is that rotating the disc can drive the rod to make circular motion, which in turn causes the limiting block to drive the connecting rod to move back and forth.

[0019] Preferably, a second motor is fixedly connected to the pressure plate, and the disc is driven to rotate by the second motor.

[0020] The effect achieved by the above components is that the output end of the second motor is connected to the disc through a reducer and a coupling, and starting the second motor can drive the disc to rotate.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this utility model, by setting up a sorting structure, the worker places the cardboard on the operating table, starts the first cylinder, and the piston rod of the first cylinder drives the pressure plate to descend, flattening the cardboard. The four sorting blocks can be set at the four corners of the cardboard to limit the cardboard, which can make the multiple layers of cardboard aligned without repeated sorting. This avoids the situation where the accuracy of manual operation is limited, making it difficult to ensure that each layer of cardboard can be accurately aligned, which can easily lead to unevenness of the flattened cardboard. Attached Figure Description

[0022] Figure 1 This utility model provides a three-dimensional structural diagram of a cardboard flattening device;

[0023] Figure 2 This utility model provides a partial schematic diagram of the finishing structure of a cardboard flattening device;

[0024] Figure 3 This utility model provides a partial schematic diagram of the pressure roller structure of a cardboard flattening device;

[0025] Figure 4 This invention provides another schematic diagram of the pressure roller structure of a cardboard flattening device.

[0026] Legend: 1. Operating table; 2. Gantry frame; 3. First cylinder; 4. Pressure plate; 5. Sorting structure; 51. Sorting block; 52. Rubber block; 53. Second cylinder; 54. Rectangular block; 55. Rectangular groove; 56. Sliding block; 57. Bidirectional screw; 58. First motor; 6. Pressure roller structure; 61. Slide groove; 62. Sliding block; 63. Rectangular plate; 64. Flattening roller; 65. Connecting rod; 66. Limiting block; 67. Round rod; 68. Disc; 69. Second motor. Detailed Implementation

[0027] Example 1, such as Figure 1 As shown, a cardboard flattening device includes an operating table 1, a gantry frame 2 fixedly connected to the operating table 1, a first cylinder 3 fixedly connected to the gantry frame 2, and a pressure plate 4 fixedly connected to the piston rod of the first cylinder 3.

[0028] Reference Figure 1 and Figure 2The operating table 1 is equipped with a sorting structure 5, which mainly consists of four sorting blocks 51. Rubber blocks 52 are fixedly connected to the sorting blocks 51. The operator places the cardboard on the operating table 1 and starts the first cylinder 3. The piston rod of the first cylinder 3 drives the pressure plate 4 to descend, flattening the cardboard. The four sorting blocks 51 can be set at the four corners of the cardboard to limit its movement, ensuring that multiple layers of cardboard are aligned without repeated sorting. This avoids the problem of uneven cardboard after flattening, which is difficult to ensure precise alignment of each layer due to the limited precision of manual operation. A second cylinder 53 is fixedly connected to the gantry 2. A rectangular block 54 is fixedly connected to the piston rod of the second cylinder 53. A rectangular groove 55 is opened in the rectangular block 54, and two sliding blocks 56 are slidably connected in the rectangular groove 55. The sliding blocks 56 are fixedly connected to the sorting blocks 51. A programmable logic controller is used to control the operation by writing a program. Two electromagnetic reversing valves for the second cylinders 53 are controlled, and signals are sent to both valves simultaneously to energize or de-energize them, thereby controlling the action of the second cylinders 53. Simultaneously activating the two second cylinders 53 causes their piston rods to drive the rectangular block 54 to move synchronously. Then, sliding blocks 56 move the sorting block 51 to the four corners of the cardboard, allowing for the sorting of cardboard of various sizes. A bidirectional screw 57 is rotatably connected to the rectangular groove 55 via bearings. The bidirectional screw 57 is threadedly connected to the two sliding blocks 56. Rotating the bidirectional screw 57 causes the two sliding blocks 56 to slide synchronously, thus positioning the cardboard in the center of the operating table 1. A first motor 58 is fixedly connected to the rectangular block 54, driving the bidirectional screw 57 to rotate. The output end of the first motor 58 is connected to the bidirectional screw 57 via a reducer and a coupling. Activating the first motor 58 drives the bidirectional screw 57 to rotate, making operation more convenient.

[0029] Reference Figure 1 , Figure 3 and Figure 4The pressure plate 4 is equipped with a pressure roller structure 6, which mainly consists of two grooves 61. Both grooves 61 are located on the pressure plate 4, and sliders 62 are slidably connected in the grooves 61. A rectangular plate 63 is fixedly connected to both sliders 62. Several flattening rollers 64 are rotatably connected to the rectangular plate 63 via bearings. During the flattening process, the rectangular plate 63 can be moved back and forth by sliding the two sliders 62, causing the flattening rollers 64 to roll back and forth on the surface of the cardboard, further squeezing and smoothing the surface of the cardboard to improve the flattening effect. A connecting rod 65 is fixedly connected to both sliders 62. A limiting block 66 is fixedly connected to the 65. The connecting rod 65 allows the two sliders 62 to slide synchronously. A disc 68 is rotatably connected to the pressure plate 4 via a bearing. A round rod 67 is provided in the limiting block 66. The disc 68 and the round rod 67 are fixedly connected. Rotating the disc 68 can drive the round rod 67 to make circular motion, which in turn causes the limiting block 66 to drive the connecting rod 65 to move back and forth. A second motor 69 is fixedly connected to the pressure plate 4. The disc 68 is driven to rotate by the second motor 69. The output end of the second motor 69 is connected to the disc 68 through a reducer and a coupling. Starting the second motor 69 can drive the disc 68 to rotate.

[0030] Working principle: The operator places the cardboard on the operating table 1 and activates the first cylinder 3. The piston rod of the first cylinder 3 drives the pressure plate 4 to descend, flattening the cardboard. Four sorting blocks 51 can be respectively set at the four corners of the cardboard to limit its movement, ensuring alignment of multiple layers of cardboard without repeated sorting. This avoids the problem of unevenness in the flattened cardboard due to the limited precision of manual operation, which makes it difficult to ensure accurate alignment of each layer. A programmable logic controller (PLC) is used to control the electromagnetic reversing valves of the two second cylinders 53. Signals are sent to both valves to energize or de-energize them simultaneously, thus controlling the action of the second cylinders 53. Simultaneously activating the two second cylinders 53 causes their piston rods to move the rectangular blocks 54 synchronously. Then, sliding blocks 56 move the sorting blocks 51 to the four corners of the cardboard, allowing for the sorting of multiple layers. The cardboard is sorted according to size. Rotating the bidirectional screw 57 can drive the two sliding blocks 56 to slide synchronously, thereby placing the cardboard in the middle position of the operating table 1. The output end of the first motor 58 is connected to the bidirectional screw 57 through a reducer and a connecting shaft. Starting the first motor 58 can drive the bidirectional screw 57 to rotate, making the operation more convenient. During the flattening process, the rectangular plate 63 can be driven to slide back and forth by sliding the two sliders 62, so that the flattening roller 64 rolls back and forth on the surface of the cardboard, further squeezing and smoothing the surface of the cardboard to improve the flattening effect. The connecting rod 65 can make the two sliders 62 slide synchronously. Rotating the disc 68 can drive the circular rod 67 to make a circular motion, thereby causing the limit block 66 to drive the connecting rod 65 to move back and forth. The output end of the second motor 69 is connected to the disc 68 through a reducer and a connecting shaft. Starting the second motor 69 can drive the disc 68 to rotate.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A cardboard flattening device, comprising an operating table (1), characterized in that: A gantry frame (2) is fixedly connected to the operating table (1). A first cylinder (3) is fixedly connected to the gantry frame (2). A pressure plate (4) is fixedly connected to the piston rod of the first cylinder (3). A sorting structure (5) is provided on the operating table (1). The sorting structure (5) is mainly composed of four sorting blocks (51). A rubber block (52) is fixedly connected to the sorting block (51). A second cylinder (53) is fixedly connected to the gantry frame (2). A rectangular block (54) is fixedly connected to the piston rod of the second cylinder (53). A rectangular groove (55) is opened in the rectangular block (54). Two sliding blocks (56) are slidably connected in the rectangular groove (55). The sliding blocks (56) are fixedly connected to the sorting block (51). The rectangular groove (55) is rotated through a bearing. A bidirectional screw (57) is connected to two sliding blocks (56) by threads; a first motor (58) is fixedly connected to the rectangular block (54), and the bidirectional screw (57) is driven to rotate by the first motor (58); a pressure roller structure (6) is provided on the pressure plate (4), and the pressure roller structure (6) is mainly composed of two sliding grooves (61). Both sliding grooves (61) are opened on the pressure plate (4), and sliders (62) are slidably connected in the sliding grooves (61). A rectangular plate (63) is fixedly connected to both sliders (62), and several flattening rollers (64) are rotatably connected to the rectangular plate (63) through bearings; a connecting rod (65) is fixedly connected to both sliders (62), and a limit block (66) is fixedly connected to the connecting rod (65).

2. The cardboard flattening device according to claim 1, characterized in that: A disc (68) is rotatably connected to the pressure plate (4) via a bearing, and a round rod (67) is provided in the limiting block (66). The disc (68) and the round rod (67) are fixedly connected.

3. The cardboard flattening device according to claim 2, characterized in that: A second motor (69) is fixedly connected to the pressure plate (4), and the disc (68) is driven to rotate by the second motor (69).

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