Cardboard leveling equipment for carton production

Abstract

This utility model discloses a cardboard leveling device for cardboard box production, belonging to the field of cardboard box production technology. It includes a base, a leveling sleeve mounted on the top surface of the base, feeding ports on both sides of the leveling sleeve, a cavity inside the leveling sleeve, and a slot on the top surface of the leveling sleeve. The feeding ports and the cavity are connected, as are the cavity and the slot. A first driving component is installed inside the slot. A connecting seat is elastically connected inside the cavity. The first driving component presses the connecting seat, causing it to move vertically downward within the cavity. A mounting cavity is formed on the bottom surface of the connecting seat. A pair of first pressure rollers and a pair of second pressure rollers are rotatably connected inside the mounting cavity. A pair of second driving components are mounted on the outside of the connecting seat, driving the pair of first pressure rollers to rotate at different speeds. This technical solution can improve the leveling quality of cardboard.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box production technology, specifically to a cardboard leveling device for cardboard box production. Background Technology

[0002] Most packaging boxes use paper as their material because it is not only environmentally friendly but also produces optimal printing results. However, paper needs to be leveled before printing to ensure print quality. A comparison with Chinese patent CN209454266U discloses a cardboard leveling device for packaging box production. This device includes two support plates, with a first mounting plate fixedly installed on the top of each support plate. A drive wheel and a driven wheel are rotatably mounted on the first mounting plate, and a common conveyor belt is fitted onto both wheels. A rotating groove is formed at the bottom of the first mounting plate, and one end of the drive wheel extends into the groove and is fixedly mounted with a first pulley. A motor is fixedly mounted at the bottom of the first mounting plate, and a second pulley is fixedly mounted on the motor's output shaft. A common belt is fitted onto both the second and first pulleys. Two support rods are symmetrically fixedly mounted on the top of the first mounting plate, and a fixed plate is fixedly mounted on the top of each support rod. A hydraulic cylinder is fixedly mounted at the bottom of the fixed plate, and a push plate is fixedly mounted on the output shaft of the hydraulic cylinder.

[0003] However, the aforementioned patent uses a conveyor belt to lift and roll the cardboard, which is prone to insufficient clamping force due to the looseness of the conveyor belt, thus reducing the quality of cardboard leveling. Therefore, a new device needs to be designed. Utility Model Content

[0004] The purpose of this invention is to provide a cardboard leveling device for carton production, so as to solve the problems mentioned in the background art.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0006] A cardboard leveling device for carton production includes a base, a leveling sleeve mounted on the top surface of the base, feeding ports on both sides of the leveling sleeve, a cavity inside the leveling sleeve, and a slot on the top surface of the leveling sleeve. The feeding ports communicate with the cavity and the slot. A first driving component is mounted inside the slot. A connecting seat is elastically connected inside the cavity. The first driving component presses the connecting seat, causing it to move vertically downward within the cavity. A mounting cavity is formed on the bottom surface of the connecting seat. A pair of first pressure rollers and a pair of second pressure rollers are rotatably connected inside the mounting cavity. A pair of second driving components are mounted on the outside of the connecting seat. The second driving components drive the pair of first pressure rollers to rotate at different speeds. The first driving components drive the connecting seat to move up and down, causing the pair of first pressure rollers and the pair of second pressure rollers to apply dynamic pressure to the cardboard. Combined with the rubbing effect produced by the rotating first pressure rollers, wrinkles and warping of the cardboard can be effectively eliminated, improving the leveling quality. The elastically connected connecting seat can adapt to cardboard of different thicknesses, preventing the cardboard from being crushed.

[0007] Furthermore, the first driving component includes an eccentric roller rotatably mounted in the slot and a first motor mounted on the outside of the leveling sleeve. The output end of the first motor is connected to the eccentric roller in a transmission connection. The eccentric roller presses the top surface of the connecting seat, and the rotational motion of the eccentric roller is converted into the vertical reciprocating motion of the connecting seat. The structure is simple and the cost is low. The first motor provides power so that the eccentric roller presses the top surface of the connecting seat.

[0008] Furthermore, four sets of springs are connected between the connecting seat and the top surface of the cavity. The springs provide elastic support and restoring force, allowing the connecting seat to move flexibly downward when squeezed by the eccentric roller and automatically reset after the pressure is removed. At the same time, the elastic connection can buffer rigid impacts and prevent the cardboard from being damaged due to excessive squeezing by a pair of first pressure rollers and a pair of second pressure rollers.

[0009] Furthermore, a pair of limiting blocks are installed on the side of the connecting seat, and a pair of limiting grooves are opened on the side of the leveling sleeve. The limiting blocks slide in the limiting grooves. The cooperation between the limiting blocks and the limiting grooves restricts the lateral movement of the connecting seat, ensuring that it only moves in the vertical direction, avoiding deviation when the eccentric roller rotates, and improving the stability and leveling accuracy of the device operation.

[0010] Furthermore, the second driving component is a second motor installed on the side of the limiting block. The output end of the second motor is connected to the first pressure roller. The second motor is fixed on the connecting seat through the limiting block. The structure is compact and the transmission is reliable, independently driving a pair of first pressure rollers to rotate at different speeds.

[0011] Furthermore, the pair of second pressure rollers are located between the pair of first pressure rollers in a "first pressure roller-second pressure roller-first pressure roller" layout, forming a three-point support pressing structure, which can evenly distribute pressure, enhance the leveling effect on the middle and sides of the cardboard, and avoid edge warping or central depression.

[0012] Furthermore, a placement platform is installed on both sides of the base, and the placement platform and the feeding port correspond one-to-one and are close to each other. The placement platform provides a support platform for loading and unloading cardboard. The docking with the feeding port can reduce the distance of manual handling and improve production efficiency. The design close to the feeding port allows the cardboard to enter the leveling sleeve smoothly and avoids deviation or jamming during feeding.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the cardboard leveling device for carton production drives the connecting seat to move up and down through the first driving component, so that a pair of first pressure rollers and a pair of second pressure rollers apply dynamic pressure to the cardboard. Combined with the rubbing effect generated by the first pressure rollers rotating at different speeds, it can effectively eliminate the wrinkles and warping of the cardboard and improve the leveling quality; the elastic connecting seat can adapt to cardboard of different thicknesses and avoid crushing the cardboard. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a cardboard leveling device for carton production disclosed in an embodiment of the present utility model;

[0015] Figure 2 This is an exploded structural diagram of a cardboard leveling device for carton production disclosed in an embodiment of the present utility model;

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of structure A in the middle;

[0017] Figure 4 This is a bottom view of the exploded structure of the cardboard leveling device for carton production disclosed in an embodiment of this utility model;

[0018] Figure 5 This is a cross-sectional structural schematic diagram of a cardboard leveling device for carton production disclosed in an embodiment of this utility model.

[0019] In the diagram: 1. Base; 2. Placement platform; 3. Leveling sleeve; 4. Feed port; 5. Limiting groove; 6. Slot; 7. Eccentric roller; 8. First motor; 9. Limiting block; 10. Second motor; 11. Connecting seat; 12. Spring; 13. Mounting cavity; 14. First pressure roller; 15. Second pressure roller; 16. Cavity. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-5 This utility model provides a technical solution: a cardboard leveling device for carton production, including a base 1, a leveling sleeve 3 installed on the top surface of the base 1, feeding ports 4 on both sides of the leveling sleeve 3, a cavity 16 inside the leveling sleeve 3, a slot 6 on the top surface of the leveling sleeve 3, the feeding ports 4 communicating with the cavity 16, the cavity 16 communicating with the slot 6, a first driving component installed inside the slot 6, a connecting seat 11 elastically connected inside the cavity 16, the first driving component pressing the connecting seat 11, causing the connecting seat 11 to move vertically downward within the cavity 16, and an installation cavity 13 on the bottom surface of the connecting seat 11. The internal rotating connection includes a pair of first pressure rollers 14 and a pair of second pressure rollers 15. A pair of second driving members are installed on the outside of the connecting seat 11. The pair of second driving members drive the pair of first pressure rollers 14 to rotate at different speeds. The cardboard enters the cavity 16 of the leveling sleeve 3 from the feeding port 4. The first driving members push the connecting seat 11 downward, so that the first pressure rollers 14 and the second pressure rollers 15 press the cardboard together. At the same time, the second driving members drive the pair of first pressure rollers 14 to rotate at different speeds. The speed difference generates a lateral rubbing motion on the cardboard. Combined with the pressure of the pressure rollers, the cardboard is stretched and leveled. The spring 12 provides elastic cushioning to ensure that the pressure is uniform and adjustable.

[0022] As an embodiment of this utility model, the first driving component further includes an eccentric roller 7 rotatably installed in the slot 6 and a first motor 8 installed on the outside of the leveling sleeve 3. The output end of the first motor 8 is connected to the eccentric roller 7 for transmission. The eccentric roller 7 presses the top surface of the connecting seat 11. The first motor 8 drives the eccentric roller 7 to rotate. The eccentric contour of the eccentric roller 7 periodically presses the top surface of the connecting seat 11, causing the connecting seat 11 to vibrate up and down in the cavity 16. The spring 12 is synchronously compressed and reset, driving the first pressure roller 14 and the second pressure roller 15 to apply periodically changing pressure to the paperboard. With the rotation of the first pressure roller 14 and the second pressure roller 15, the wrinkles of the paperboard are effectively broken. As an embodiment of this utility model, four sets of springs 12 are further connected between the top surface of the connecting seat 11 and the cavity 16. When the eccentric roller 7 presses the connecting seat 11, the springs 12 are compressed, and the connecting seat 11 moves down to make the pressure roller press the cardboard. When the eccentric roller 7 rotates away from the connecting seat 11, the springs 12 reset and push the connecting seat 11 up to form a periodic pressing action. The elastic deformation of the springs 12 can also adapt to the fluctuation of the cardboard thickness, ensuring that the pressure roller and the cardboard are always in contact, and there are at least four sets of springs 12.

[0023] As an embodiment of this utility model, a pair of limiting blocks 9 are further installed on the side of the connecting seat 11, and a pair of limiting grooves 5 are opened on the side of the leveling sleeve 3. The limiting blocks 9 slide in the limiting grooves 5. When the connecting seat 11 moves, the limiting blocks 9 slide in the limiting grooves 5, thereby mechanically limiting and constraining the movement trajectory of the connecting seat 11. The vertical guiding effect of the limiting grooves 5 and the elastic force of the spring 12 together ensure the verticality of the up and down movement of the connecting seat 11, preventing the pressure roller from tilting and causing uneven force on the cardboard.

[0024] In one embodiment of this utility model, the second driving component is a second motor 10 installed on the side of the limiting block 9. The output end of the second motor 10 is connected to the first pressure roller 14. The second motor 10 drives the first pressure roller 14 to rotate. By adjusting the speed difference between the two motors, the two first pressure rollers 14 rotate at different speeds. When the cardboard passes through the pressure roller group, the first pressure rollers 14 rotating at different speeds generate lateral friction force on the cardboard, stretching and flattening the wrinkles of the cardboard. At the same time, the second pressure rollers 15 assist in supporting the cardboard to avoid excessive deformation. In another embodiment of this utility model, a pair of second pressure rollers 15 are located between a pair of first pressure rollers 14. The cardboard passes between the first pressure rollers 14 on both sides and the second pressure roller 15 in the middle. The first pressure rollers 14 on both sides rotate at different speeds to generate a rubbing force, and the second pressure roller 15 in the middle provides a supporting reaction force, forming a "rubbing-support" composite effect. This arrangement ensures that the cardboard is subjected to force in both the lateral and longitudinal directions, effectively eliminating multidimensional wrinkles.

[0025] As an embodiment of this utility model, the base 1 is further provided with a placement platform 2 on both sides, and the placement platform 2 and the feeding port 4 correspond one-to-one and are close to each other. When feeding, the cardboard is placed on one side of the placement platform 2 and pushed to the feeding port 4 by manual labor or conveyor belt to enter the leveling sleeve 3. The leveled cardboard is output from the other side of the feeding port 4 and falls on the corresponding placement platform 2, which is convenient for subsequent collection or processing. The height of the placement platform 2 is flush with the feeding port 4 to ensure smooth cardboard conveying.

[0026] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a control cabinet. The control circuit can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail.

Claims

1. A cardboard leveling device for carton production, characterized in that, Includes a base (1), a leveling sleeve (3) is installed on the top surface of the base (1), feeding ports (4) are provided on both sides of the leveling sleeve (3), a cavity (16) is provided inside the leveling sleeve (3), a slot (6) is provided on the top surface of the leveling sleeve (3), the feeding ports (4) and the cavity (16) are connected, the cavity (16) and the slot (6) are connected, a first driving member is installed inside the slot (6), and a connecting element is elastically connected inside the cavity (16). The first driving member presses the connecting seat (11) so that the connecting seat (11) moves vertically downward in the cavity (16). The bottom surface of the connecting seat (11) is provided with an installation cavity (13). A pair of first pressure rollers (14) and a pair of second pressure rollers (15) are rotatably connected inside the installation cavity (13). A pair of second driving members are installed on the outside of the connecting seat (11). The pair of second driving members drive the pair of first pressure rollers (14) to rotate at different speeds.

2. The cardboard leveling device for carton production according to claim 1, characterized in that, The first driving component includes an eccentric roller (7) rotatably mounted in the slot (6) and a first motor (8) mounted on the outside of the leveling sleeve (3). The output end of the first motor (8) is connected to the eccentric roller (7) in a transmission manner, and the eccentric roller (7) presses the top surface of the connecting seat (11).

3. The cardboard leveling device for carton production according to claim 1, characterized in that, Four sets of springs (12) are connected between the top surface of the connecting seat (11) and the cavity (16).

4. The cardboard leveling device for carton production according to claim 1, characterized in that, A pair of limiting blocks (9) are installed on the side of the connecting seat (11), and a pair of limiting grooves (5) are opened on the side of the leveling sleeve (3). The limiting blocks (9) slide in the limiting grooves (5).

5. The cardboard leveling device for carton production according to claim 4, characterized in that, The second driving component is a second motor (10) installed on the side of the limiting block (9), and the output end of the second motor (10) is connected to the first pressure roller (14) in a transmission connection.

6. The cardboard leveling device for carton production according to claim 1, characterized in that, A pair of second pressure rollers (15) are located between a pair of first pressure rollers (14).

7. The cardboard leveling device for carton production according to claim 1, characterized in that, The base (1) has a placement platform (2) installed on both sides, and the placement platform (2) and the feeding port (4) correspond to each other and are close to each other.

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