Leveling and feeding device for corrugated board cutting

Abstract

The utility model relates to the field of corrugated board processing equipment, and discloses a leveling and feeding device for cutting corrugated boards, which comprises a support frame, a feeding device and a discharging device, the feeding table is installed on the supporting frame and used for conveying corrugated boards; and the leveling mechanism is installed on the supporting frame, and the leveling mechanism is arranged above the feeding table. According to the corrugated board leveling device, through the combined design of the leveling pressing plate and the two leveling pressing rollers, more comprehensive and uniform leveling treatment on corrugated boards is achieved, the large-area contact design of the leveling pressing plate effectively increases the contact area with the corrugated boards, leveling force can be more evenly distributed on the corrugated boards, and the corrugated board leveling effect is improved. The rolling design of the leveling pressing roller enables the contact point between the leveling pressing roller and the paperboard to be dynamically adjusted in the leveling process, the leveling uniformity and effect are improved, the position of the leveling pressing plate can be automatically adjusted according to the actual situation of the paperboard in the leveling process, proper contact force is kept, and the leveling stability and durability are enhanced.

Description

Technical Field

[0001] The utility model relates to the field of corrugated board processing equipment, in particular to a leveling feeding device for corrugated board cutting. Background Art

[0002] The leveling of corrugated board is a crucial link in the carton production process, which is directly related to the quality of subsequent printing, die-cutting or grooving and corner cutting. It is mainly responsible for smoothly feeding the corrugated board to be cut into the cutting equipment to ensure the cutting accuracy and efficiency. Corrugated boards with poor flatness will produce various arch shapes, such as horizontal arches, vertical arches and arbitrary arches, which are easy to get stuck during mechanized adsorption feeding, resulting in the scrapping of the cardboard, forced shutdown for cleaning. In double-color or multi-color printing, defects such as uneven ink absorption, inaccurate color registration, and gaps in color overlapping edges are likely to occur. The same problems of getting stuck and dimensional displacement will also occur in die-cutting feeding.

[0003] Most of the existing leveling feeding devices use two rollers to level the corrugated board. This simple leveling method has obvious limitations. Due to the structural characteristics of the corrugated board, its surface often shows a certain wave shape or unevenness. It is often difficult for the two rollers to achieve comprehensive and uniform leveling of the cardboard during the rolling process. Especially when the contact area between the roller and the cardboard is limited or the pressure distribution between the rollers is uneven, the leveling effect is greatly reduced. Even if the roller can flatten the corrugated board to a certain extent, due to the elastic recovery characteristics of the cardboard material, once the roller stops rolling, the cardboard will often return to its original shape in a short time, which not only reduces the leveling effect but also may have an adverse impact on subsequent cutting, printing and other processes. Summary of the Utility Model

[0004] To solve the above-mentioned problems, the utility model is realized through the following technical solutions:

[0005] A leveling feeding device for corrugated board cutting, comprising: a support frame; a feeding table installed on the support frame for conveying corrugated board; a leveling mechanism installed on the support frame, the leveling mechanism is arranged above the feeding table, and the leveling mechanism is used for leveling the corrugated board; the leveling mechanism includes: a leveling pressing plate arranged on the support frame and configured to move closer to or away from the feeding table, the leveling pressing plate is used for flattening the corrugated board; two swing frames installed on the leveling pressing plate and arranged symmetrically; two leveling rollers respectively installed on the two swing frames and configured to roll on the corrugated board under the extrusion of the feeding table when the leveling pressing plate moves downward, and drive the swing frames to rotate on the leveling pressing plate, and the two leveling rollers are used for leveling the corners of the corrugated board.

[0006] The leveling mechanism further includes: a control board, arranged on the support frame and configured to move on the support frame, the control board being used to drive the leveling pressing plate to move; a connecting groove, opened at the top of the leveling pressing plate, the control board being installed in the connecting groove, and the connecting groove being used to provide a buffer space for the leveling pressing plate; a second elastic member, with one end connected to the inner wall of the connecting groove and the other end connected to the bottom of the control board, the second elastic member being used to provide a restoring force for the leveling pressing plate at the initial position; a groove, opened on one side of the leveling pressing plate; a rotating seat, connected in the groove, and the swing frame is connected to the rotating seat; a first elastic member, with one end connected to the inner wall of the groove and the other end connected to the rotating seat, the first elastic member being used to provide a restoring force for the rotating seat and the swing frame at the initial position.

[0007] The feeding table includes: two driving rollers, installed on the feeding table and arranged symmetrically; a conveyor belt, connected to the two driving rollers, and used to move and convey corrugated cardboard when the driving rollers rotate; a backing plate, installed on the feeding table, the backing plate being arranged inside the conveyor belt and located directly below the leveling pressing plate, and used to provide support for the corrugated cardboard; a first power source, installed on the feeding table, and the power shaft of the first power source is connected to the driving roller, and used to provide rotational power for the driving roller.

[0008] The support frame includes: two support rods, installed on the support frame, the feeding table is connected to the two support rods, and the support rods are used to provide support for the feeding table.

[0009] It further includes: a second power source, installed on the support frame, and the power shaft of the second power source is connected to the control board, and the second power source is used to provide moving power for the control board.

[0010] The outer ring of the leveling roller is wrapped with a rubber layer, which is used to protect the corrugated cardboard.

[0011] The utility model provides a leveling and feeding device for corrugated cardboard cutting. Compared with the prior art, it has the following beneficial effects:

[0012] 1. Through the combined design of the leveling pressing plate and the two leveling rollers, a more comprehensive and uniform leveling treatment of the corrugated cardboard is achieved. The large-area contact design of the leveling pressing plate effectively increases the contact area with the cardboard, enabling the leveling force to be more evenly distributed on the cardboard, reducing the phenomenon of uneven leveling caused by excessive or insufficient local pressure. The rolling design of the leveling roller enables the contact points with the cardboard to be dynamically adjusted during the leveling process, improving the uniformity and effect of leveling, especially for the corner areas of the cardboard, achieving fine leveling.

[0013] 2. By arranging the second elastic member between the connecting groove and the control board, and the first elastic member between the groove and the rotating seat, good buffering and restoring forces are provided for the leveling mechanism, enabling the leveling pressing plate to automatically adjust its position according to the actual situation of the cardboard during the leveling process, maintaining an appropriate contact force, enhancing the stability and durability of leveling, and avoiding deformation or damage to the cardboard caused by long-term pressing.

[0014] 3. The rubber layer wrapped around the outer circumference of the leveling roller has good elasticity and wear resistance, which can effectively protect the surface of the corrugated cardboard from damage during the leveling process. The soft characteristics of the rubber layer enable the leveling roller to better conform to the surface contour of the cardboard, reducing scratches or indentations caused by hard contact. Brief Description of the Drawings

[0015] Figure 1 It is a schematic three-dimensional structure diagram proposed by the present utility model.

[0016] Figure 2 It is a schematic three-dimensional structure diagram of another perspective proposed by the present utility model.

[0017] Figure 3 It is a schematic cross-sectional structure diagram of the feeding table proposed by the present utility model.

[0018] Figure 4 It is a schematic structure diagram of the leveling mechanism proposed by the present utility model.

[0019] Figure 5 It is a schematic cross-sectional structure diagram of the control board and the leveling pressing plate proposed by the present utility model.

[0020] Figure 6 It is a schematic cross-sectional structure diagram of the control board and the swing frame proposed by the present utility model.

[0021] The reference numerals in the drawings are:

[0022] 1. Support frame; 101. Support rod;

[0023] 2. Feeding table; 201. Driving roller; 202. Conveyor belt; 203. First power source; 204. Cushion plate;

[0024] 3. Leveling mechanism; 301. Control board; 302. Leveling pressing plate; 303. Swing frame; 304. Leveling roller; 305. Connecting groove; 306. Rotating seat; 307. First elastic member; 308. Groove; 309. Second elastic member;

[0025] 4. Second power source. Detailed Embodiment

[0026] In order to make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are some, rather than all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0027] Refer to Figures 1 - 6, A flattening feeding device for corrugated cardboard cutting, comprising: a support frame 1, which serves as the basic structure of the entire device, stably supporting the feeding table 2, the flattening mechanism 3 and other components, ensuring the overall stability and durability of the device during the flattening process, capable of withstanding various forces and vibrations generated during the flattening process, and guaranteeing the smooth progress of the flattening operation; a feeding table 2, installed on the support frame 1, for conveying corrugated cardboard; a flattening mechanism 3, installed on the support frame 1, the flattening mechanism 3 is arranged above the feeding table 2, and the flattening mechanism 3 is used for flattening corrugated cardboard; the flattening mechanism 3 includes: a flattening pressing plate 302, arranged on the support frame 1, and configured to move closer to or away from the feeding table 2, and the flattening pressing plate 302 is used for flattening corrugated cardboard; two swing frames 303, installed on the flattening pressing plate 302, and arranged symmetrically; two flattening rollers 304, respectively installed on the two swing frames 303, and configured to roll on the corrugated cardboard under the extrusion of the feeding table 2 when the flattening pressing plate 302 moves downward, and drive the swing frames 303 to rotate on the flattening pressing plate 302, and the two flattening rollers 304 are used for flattening the corners of the corrugated cardboard; a control board 301, arranged on the support frame 1, and configured to move on the support frame 1, and the control board 301 is used for driving the flattening pressing plate 302 to move; a connecting groove 305, opened at the top of the flattening pressing plate 302, and the control board 301 is installed in the connecting groove 305, and the connecting groove 305 is used for providing a buffer space for the flattening pressing plate 302; a second elastic member 309, with one end connected to the inner wall of the connecting groove 305 and the other end connected to the bottom of the control board 301, and the second elastic member 309 is used for providing a restoring force for the initial position of the flattening pressing plate 302; a groove 308, opened on one side of the flattening pressing plate 302; a rotating seat 306, connected in the groove 308, and the swing frame 303 is connected to the rotating seat 306;The first elastic member 307 has one end connected to the inner wall of the groove 308 and the other end connected to the rotating seat 306. The first elastic member 307 is used to provide a restoring force for the rotating seat 306 and the swing frame 303. The design that the leveling pressing plate 302 can move up and down enables the leveling pressing plate 302 to flexibly adjust the contact force with the corrugated cardboard, adapting to cardboard with different thicknesses and hardnesses. Its large-area contact design improves the leveling effect and ensures the flatness of the cardboard surface. Through the combined use of the swing frame 303 and the leveling roller 304, during the downward movement of the leveling pressing plate 302, the swing frame 303 rotates under the extrusion of the feeding table 2. The swing frame 303 drives the leveling roller 304 to roll on the surface of the corrugated cardboard, which can not only effectively level the main part of the cardboard but also perform fine leveling on the corners of the cardboard, solving the problem that the corners are difficult to level in the traditional leveling method. The rolling design of the leveling roller 304 reduces the friction with the cardboard and protects the cardboard surface. The control plate 301 is connected to the leveling pressing plate 302 through the connecting groove 305 and is equipped with a second elastic member 309 to provide a restoring force, enabling the leveling pressing plate 302 to automatically adjust its position during the leveling process and maintain an appropriate contact force. The buffer space of the connecting groove 305 further enhances the adaptability and stability of the leveling mechanism 3. When the swing frame 303 rotates, it drives the rotating seat 306 to rotate in the groove 308, and the rotating seat 306 drives the first elastic member 307 to deform. The first elastic member 307 can be a clockwork spring or a coil spring. The second elastic member 309 can be a stainless steel spring or an elastic rubber block.;

[0028] Refer to Figure 2 and Figure 3, the feeding table 2 includes: two driving rollers 201, which are installed on the feeding table 2 and are symmetrically arranged; a conveyor belt 202, which is connected to the two driving rollers 201 and is used to move and convey corrugated cardboard when the driving rollers 201 rotate. The symmetrically arranged driving rollers 201 achieve the stable conveyance of corrugated cardboard through the conveyor belt 202, improving the feeding efficiency and having a stable operation, reducing the jitter and deviation of the cardboard during conveyance. The conveyor belt 202 not only plays the role of transporting corrugated cardboard but also can preliminarily position and guide the cardboard to a certain extent, laying a good foundation for the subsequent flattening work; a backing plate 204, which is installed on the feeding table 2, the backing plate 204 is arranged inside the conveyor belt 202 and is directly below the flattening press plate 302, and is used to provide support for the corrugated cardboard. The backing plate 204 is located inside the conveyor belt 202 to provide firm support for the corrugated cardboard, preventing the cardboard from deforming or being damaged due to uneven stress during the flattening process, and its design enables the flattening press plate 302 to more effectively flatten the cardboard; a first power source 203, which is installed on the feeding table 2, and the first power source 203 is used to provide rotational power for the driving rollers 201, providing stable rotational power for the driving rollers 201 to ensure the continuous and uniform operation of the conveyor belt 202, improving the automation degree and reliability of the feeding table 2. The first power source 203 uses a servo motor or a stepper motor can also be used.

[0029] Refer to Figure 1 and Figure 2 , the support frame 1 includes: two support rods 101, which are installed on the support frame 1, the feeding table 2 is connected to the two support rods 101, and the support rods 101 are used to provide support for the feeding table 2.

[0030] Refer to Figure 1 and Figure 2 , a second power source 4, which is installed on the support frame 1, the power shaft of the second power source 4 is connected to the control board 301, and the second power source 4 is used to provide moving power for the control board 301. The second power source 4 uses a cylinder or a linear motor can also be used. The second power source 4 provides moving power for the control board 301 to achieve the automatic lifting control of the flattening press plate 302, improving the automation degree and efficiency of the flattening operation. By precisely controlling the output of the second power source 4, the moving speed and force of the flattening press plate 302 can be precisely adjusted to meet different flattening requirements.

[0031] Refer to Figure 5 , the outer circle of the flattening roller 304 is wrapped with a rubber layer, which is used to protect the corrugated cardboard. The rubber layer has good elasticity and wear resistance, and can protect the surface of the corrugated cardboard from damage during the flattening process. The soft characteristics of the rubber layer enable the flattening roller 304 to better fit the surface of the cardboard, improving the flattening effect.

[0032] During use, the first power source 203 is started, causing the two drive rollers 201 to start rotating. The rotation of the drive rollers 201 drives the conveyor belt 202 to move, continuously and smoothly conveying the corrugated cardboard to the feeding table 2 area. During the conveying process of the conveyor belt 202, preliminary positioning and guiding of the corrugated cardboard are performed to ensure that the cardboard enters the leveling area in the correct posture. When the corrugated cardboard is conveyed directly below the leveling pressing plate 302, the second power source 4 is started, pushing the control plate 301 to move along the support frame 1. The control plate 301 is connected to the leveling pressing plate 302 through the connecting groove 305, driving the leveling pressing plate 302 to move downward, approaching and contacting the corrugated cardboard. As the leveling pressing plate 302 presses down, the two leveling rollers 304 are squeezed by the cushion plate 204 on the feeding table 2 and start to roll on the surface of the corrugated cardboard. The rolling of the leveling rollers 304 drives the swing frame 303 to rotate on the leveling pressing plate 302, realizing the fine leveling of the corners of the corrugated cardboard. During the leveling process, the second elastic member 309 in the connecting groove 305 provides buffering and restoring force for the leveling pressing plate 302, ensuring that the leveling pressing plate 302 can automatically adjust its position and maintain an appropriate contact force. At the same time, when the swing frame 303 rotates, it drives the rotating seat 306 to rotate in the groove 308, and the first elastic member 307 deforms, providing a restoring force for the initial position of the swing frame 303. When the corrugated cardboard is leveled to the required degree, the second power source 4 works in reverse, pushing the control plate 301 to rise, driving the leveling pressing plate 302 back to the initial position. The leveled corrugated cardboard continues to be conveyed by the conveyor belt 202 to subsequent processes such as cutting and stacking. During this process, the feeding table 2 continues to work, continuously conveying new corrugated cardboard to the leveling area, realizing continuous and efficient leveling operations.

[0033] In summary, compared with the prior art, the following beneficial effects are achieved:

[0034] Through the combined design of the leveling pressing plate 302 and the two leveling rollers 304, a more comprehensive and uniform leveling treatment of the corrugated cardboard is realized. The large-area contact design of the leveling pressing plate 302 effectively increases the contact area with the cardboard, enabling the leveling force to be more evenly distributed on the cardboard, reducing the uneven leveling phenomenon caused by excessive or insufficient local pressure. The rolling design of the leveling rollers 304 enables the contact points with the cardboard to be dynamically adjusted during the leveling process, improving the uniformity and effect of leveling, especially for the corner areas of the cardboard, realizing fine leveling.

[0035] By arranging the second elastic member 309 between the connection groove 305 and the control board 301, and the first elastic member 307 between the groove 308 and the rotating base 306, good buffering and restoring forces are provided for the leveling mechanism 3, enabling the leveling pressing plate 302 to automatically adjust its position according to the actual situation of the cardboard during the leveling process, maintaining an appropriate contact force, enhancing the stability and durability of leveling, and avoiding deformation or damage of the cardboard caused by long-term pressing.

[0036] The rubber layer wrapped around the outer circumference of the leveling roller 304 has good elasticity and wear resistance, and can effectively protect the surface of the corrugated cardboard from damage during the leveling process. The soft characteristics of the rubber layer enable the leveling roller 304 to better fit the surface profile of the cardboard, reducing scratches or indentations caused by hard contact.

[0037] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flattening feeding device for corrugated cardboard cutting, characterized in that, Comprising: A support frame (1); A feeding table (2), installed on the support frame (1) for conveying corrugated cardboard; A flattening mechanism (3), installed on the support frame (1), the flattening mechanism (3) is arranged above the feeding table (2), and the flattening mechanism (3) is used for flattening corrugated cardboard; The flattening mechanism (3) includes: A flattening pressing plate (302), arranged on the support frame (1), configured to move closer to or away from the feeding table (2), and the flattening pressing plate (302) is used for flattening corrugated cardboard; Two swing frames (303), installed on the flattening pressing plate (302), symmetrically arranged; Two flattening rollers (304), respectively installed on the two swing frames (303), configured such that when the flattening pressing plate (302) moves downward, the two flattening rollers (304) are squeezed by the feeding table (2) and roll on the corrugated cardboard, and drive the swing frames (303) to rotate on the flattening pressing plate (302), and the two flattening rollers (304) are used for flattening the corners of the corrugated cardboard.

2. The leveling and feeding device for corrugated cardboard cutting according to claim 1, wherein The flattening mechanism (3) further includes: A control board (301), arranged on the support frame (1), configured to move on the support frame (1), and the control board (301) is used to drive the flattening pressing plate (302) to move; A connecting groove (305), opened at the top of the flattening pressing plate (302), the control board (301) is installed in the connecting groove (305), and the connecting groove (305) is used to provide a buffer space for the flattening pressing plate (302); A second elastic member (309), one end connected to the inner wall of the connecting groove (305), and the other end connected to the bottom of the control board (301), and the second elastic member (309) is used to provide a restoring force for the initial position of the flattening pressing plate (302).

3. The leveling and feeding device for corrugated cardboard cutting according to claim 1, characterized in that, The flattening mechanism (3) further includes: A groove (308), opened on one side of the flattening pressing plate (302); A rotating seat (306), connected in the groove (308), and the swing frame (303) is connected to the rotating seat (306); A first elastic member (307), one end connected to the inner wall of the groove (308), and the other end connected to the rotating seat (306), and the first elastic member (307) is used to provide a restoring force for the initial position of the rotating seat (306) and the swing frame (303).

4. The leveling and feeding device for corrugated cardboard cutting according to claim 1, wherein The feeding table (2) includes: Two driving rollers (201), installed on the feeding table (2), symmetrically arranged; A conveyor belt (202), connected between the two driving rollers (201), used for when the driving rollers (201) rotate, the conveyor belt (202) moves to convey corrugated cardboard.

5. The leveling and feeding device for corrugated cardboard cutting according to claim 4, characterized in that, The feeding table (2) further includes: A backing plate (204), installed on the feeding table (2), the backing plate (204) is arranged inside the conveyor belt (202) and directly below the flattening pressing plate (302), and is used to provide support for the corrugated cardboard; A first power source (203), installed on the feeding table (2), the power shaft of the first power source (203) is connected to the driving roller (201), and is used to provide rotational power for the driving roller (201).

6. The leveling and feeding device for corrugated cardboard cutting according to claim 1, wherein, The support frame (1) includes: Two support rods (101), which are installed on the support frame (1), the feeding table (2) is connected to the two support rods (101), and the support rods (101) are used to provide support for the feeding table (2).

7. A flattening and feeding device for corrugated cardboard cutting according to claim 1, characterized in that, It further includes: A second power source (4), which is installed on the support frame (1), the power shaft of the second power source (4) is connected to the control board (301), and the second power source (4) is used to provide moving power for the control board (301).

8. The leveling and feeding device for corrugated cardboard cutting according to claim 1, wherein, The outer ring of the leveling roller (304) is wrapped with a rubber layer for protecting the corrugated cardboard.

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