Edge trimming device for corrugated board processing

Abstract

The utility model discloses an edge trimming device for corrugated board processing, and relates to the technical field of corrugated board processing, the edge trimming device comprises a device main body and a conveying roller, the back of the device main body is provided with a motor, the output end of the motor is connected with a swing frame, and the bottom of the swing frame is fixedly provided with a shear knife; a support is fixed to one side of the outer surface of the device body, a first belt wheel is connected into the support, and an inner ratchet wheel groove is formed in the inner ring of the first belt wheel. Through the arrangement of the motor, the swing frame and the shear knife, after the motor is started, the output end drives the swing frame to swing up and down in a reciprocating mode, the shear knife is matched with the edge of the device body to form a shear, so that corners of a corrugated board are sheared off, damage to slitter edges of the corrugated board is little compared with rotary cutting, dust is not prone to being generated, and the cutting efficiency is improved. Therefore, serious dust pollution is more difficult to generate; trimming is convenient, and dust pollution is not prone to being caused.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated board processing, in particular to an edge trimming device for corrugated board processing. Background Technique

[0002] Corrugated board is a multi-layer adhesive body, which is composed of at least one layer of corrugated core paper sandwich and one layer of cardboard. It has high mechanical strength and can withstand collisions and drops during handling. Corrugated board is processed from reel base paper through processes such as corrugating pressing, gluing, bonding and fixing, paper separating and creasing, and cross-cutting into standard cardboard. During the production process of corrugated board, due to reasons such as precision and allowance, the edges and corners will be uneven, so it is necessary to trim the edges of corrugated board through a trimming device.

[0003] Most of the existing corrugated board edge trimming devices cut the redundant edges and corners of corrugated paper through a high-speed rotating blade. The blade cuts off the edge bit by bit. Therefore, such a trimming method will generate a large amount of dust, which is likely to cause dust pollution. To avoid this phenomenon, it is necessary to additionally set up a dust suction structure, increasing the energy consumption and cost of the device. Content of the Utility Model

[0004] Based on this, the purpose of the utility model is to provide an edge trimming device for corrugated board processing to solve the technical problems mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An edge trimming device for corrugated board processing, including a device main body and a conveying roller. A motor is installed on the back of the device main body, and a swing frame is connected to the output end of the motor. A shearing knife is fixed at the bottom of the swing frame; a transmission shaft is connected to the outer surface of the shearing knife, and a pawl is connected to the inside of the transmission shaft through a torsion spring shaft. A bracket is fixed on one side of the outer surface of the device main body, and a first pulley is connected to the inside of the bracket. An internal ratchet groove is provided in the inner circle of the first pulley. A second pulley is connected to the outer surface of the conveying roller, and a belt is connected between the second pulley and the first pulley.

[0006] By adopting the above technical solution, after the motor is started, the output end drives the swing frame to swing up and down reciprocally, so that the shearing knives cooperate with the edge of the device main body to form scissors, thereby cutting off the corners of the corrugated cardboard. Compared with rotary cutting, the waste edges of the corrugated cardboard are less damaged, so it is not easy to generate dust, and thus it is more difficult to cause serious dust pollution. When the swing frame drives the shearing knives to rotate clockwise downward to trim the edge, the swing frame drives the transmission shaft to rotate clockwise together. At this time, the pawl is pushed open by the inner ratchet groove to compress the spring, so that the transmission shaft will not drive the first belt pulley to rotate. When the swing frame drives the shearing knives to rotate counterclockwise upward to reset, the transmission shaft rotates counterclockwise together. At this time, the torsion spring shaft drives the pawl to pop out and reset, and the pawl abuts against the inner ratchet groove and the transmission shaft and cannot rotate to avoid it, so that the transmission shaft drives the first belt pulley to rotate through the pawl. Then, the first belt pulley drives the second belt pulley to rotate through belt transmission, and further drives the conveying roller to rotate to convey the corrugated cardboard to prepare for trimming the edge next time.

[0007] Further, the swing frame is rotationally connected to the device main body, two shearing knives are provided, and the two shearing knives are arranged in a mirror image.

[0008] By adopting the above technical solution, after the motor is started, the output end drives the swing frame to rotate clockwise, so that the shearing knives rotate downward. The shearing knives cooperate with the edge of the device main body to form scissors, thereby cutting off the corners of the corrugated cardboard.

[0009] Further, the transmission shaft is located inside the first belt pulley, and there is a gap between the transmission shaft and the first belt pulley. The first belt pulley is rotationally connected to the bracket.

[0010] By adopting the above technical solution, when the swing frame drives the shearing knives to rotate clockwise downward to trim the edge, the swing frame drives the transmission shaft to rotate clockwise together. At this time, the pawl is pushed open by the inner ratchet groove to compress the spring, so that the transmission shaft will not drive the first belt pulley to rotate.

[0011] Further, the pawl is rotationally connected to the transmission shaft through a torsion spring shaft, and the pawl abuts against the inner ratchet groove.

[0012] By adopting the above technical solution, when the transmission shaft rotates clockwise, the pawl is pushed open by the inner ratchet groove to compress the spring, so that the transmission shaft will not drive the first belt pulley to rotate. When the transmission shaft rotates counterclockwise, the torsion spring shaft drives the pawl to pop out and reset, and the pawl abuts against the inner ratchet groove and the transmission shaft and cannot rotate to avoid it, so that the transmission shaft drives the first belt pulley to rotate through the pawl.

[0013] Further, a plurality of pawls and torsion spring shafts are provided, and the plurality of pawls and torsion spring shafts are distributed in an annular array.

[0014] By adopting the above technical solution, by increasing the number of pawls, the contact surface is increased, so that the plurality of pawls can share the pressure to extend the service life of the pawls.

[0015] Further, four conveying rollers are provided, and the four conveying rollers respectively penetrate through both sides of the back of the device main body. Gears are connected to the backs of the four conveying rollers, and a secondary roller is connected to one side of the top of the swing frame.

[0016] By adopting the above technical solution, when the conveying rollers rotate, the four gears mesh with each other in pairs, so that the four conveying rollers rotate towards each other to convey the corrugated cardboard for the next trimming of the edges.

[0017] Further, two second pulleys and two belts are provided, and the two belts are both connected to the first pulley, and the two second pulleys are respectively connected to the two conveying rollers.

[0018] By adopting the above technical solution, the transmission shaft drives the first pulley to rotate through the pawl, and then the first pulley drives the second pulley to rotate through belt transmission.

[0019] Further, the secondary roller is rotatably connected to the swing frame.

[0020] By adopting the above technical solution, during the conveying process of the corrugated cardboard, the secondary roller rotates under force, thereby reducing the wear between the corrugated cardboard and the swing frame.

[0021] Further, a sliding frame is connected to the bottom of the device main body, and a collection box is connected inside the sliding frame.

[0022] By adopting the above technical solution, the cut edges fall into the collection box under the influence of gravity. When the collection box is full, the staff can directly pull out the collection box from the sliding frame for cleaning. After cleaning the collection box, the staff can put the collection box back into the sliding frame to continue collecting the trimmed waste edges.

[0023] Further, the collection box is located below the shearing knife, and the collection box is detachably connected to the sliding frame.

[0024] By adopting the above technical solution, when the collection box is full, the staff can directly pull out the collection box from the sliding frame for cleaning.

[0025] In summary, the main beneficial effects of the present utility model are as follows:

[0026] 1. Through the settings of the motor, swing frame and shearing knife in the present utility model, after the motor is started, the output end drives the swing frame to swing up and down reciprocally, so that the shearing knife and the edge of the device main body form scissors, thereby cutting off the corners of the corrugated cardboard. Compared with rotary cutting, the waste edges of the corrugated cardboard are less damaged, so it is not easy to generate dust, and thus it is more difficult to cause serious dust pollution; it is convenient for edge trimming and not easy to cause dust pollution;

[0027] 2. With the settings of the transmission shaft, pawl, torsion spring shaft and internal ratchet groove in the present utility model, when the swing frame drives the shearing knife to rotate clockwise downward to trim the edge, the swing frame drives the transmission shaft to rotate clockwise together. At this time, the pawl is pushed open by the internal ratchet groove to compress the spring, so that the transmission shaft will not drive the first belt pulley to rotate; when the swing frame drives the shearing knife to rotate counterclockwise upward to reset, the transmission shaft rotates counterclockwise together. At this time, the torsion spring shaft drives the pawl to pop out and reset, and the pawl abuts against the internal ratchet groove and the transmission shaft and cannot rotate to avoid it, so that the transmission shaft drives the first belt pulley to rotate through the pawl. Then, the first belt pulley drives the second belt pulley to rotate through belt transmission, and further drives the conveying roller to rotate to convey the corrugated cardboard to prepare for the next edge trimming; the trimming structure is linked with the feeding structure, reducing energy consumption and saving energy and environmental protection. Description of the Drawings

[0028] Figure 1 is a schematic structural view of the present utility model;

[0029] Figure 2 is a schematic cross-sectional structural view of the transmission shaft of the present utility model;

[0030] Figure 3 of the present utility model Figure 2 is an enlarged view of the structure at A in;

[0031] Figure 4 is an exploded structural view of the swing frame of the present utility model;

[0032] Figure 5 of the present utility model Figure 4 is an enlarged view of the structure at A in.

[0033] In the figure: 1, device main body; 2, motor; 3, swing frame; 4, shearing knife; 5, auxiliary roller; 6, sliding frame; 7, collection box; 8, conveying roller; 9, gear; 10, transmission shaft; 11, pawl; 12, torsion spring shaft; 13, first belt pulley; 14, internal ratchet groove; 15, second belt pulley; 16, belt; 17, bracket. Detailed Embodiment

[0034] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0035] Next, the embodiments of the present utility model will be described according to the overall structure of the present utility model.

[0036] Embodiment 1:

[0037] An edge trimming device for corrugated cardboard processing, such as Figures 1-5As shown in the figure, it includes a device main body 1 and a conveying roller 8. A motor 2 is installed on the back of the device main body 1. The output end of the motor 2 is connected to a swing frame 3. The swing frame 3 is rotatably connected to the device main body 1. A cutting knife 4 is fixed at the bottom of the swing frame 3. There are two cutting knives 4, and the two cutting knives 4 are arranged mirror-symmetrically. The cutting knife 4 cooperates with the edge of the device main body 1 to form scissors, so as to cut off the corners of the corrugated board.

[0038] The outer surface of the cutting knife 4 is connected to a transmission shaft 10. Inside the transmission shaft 10, a ratchet pawl 11 is connected through a torsion spring shaft 12. The ratchet pawl 11 is rotatably connected to the transmission shaft 10 through the torsion spring shaft 12. There are multiple ratchet pawls 11 and torsion spring shafts 12, and the multiple ratchet pawls 11 and torsion spring shafts 12 are distributed in an annular array. A bracket 17 is fixed on one side of the outer surface of the device main body 1. Inside the bracket 17, a first pulley 13 is connected. The transmission shaft 10 is located inside the first pulley 13, and there is a gap between the transmission shaft 10 and the first pulley 13. The first pulley 13 is rotatably connected to the bracket 17. The swing frame 3 drives the transmission shaft 10 to rotate clockwise together. At this time, the ratchet pawl 11 is pushed open by the inner ratchet groove 14 to compress the spring, so that the transmission shaft 10 will not drive the first pulley 13 to rotate; an inner ratchet groove 14 is provided on the inner ring of the first pulley 13, and the ratchet pawl 11 abuts against the inner ratchet groove 14. A second pulley 15 is connected to the outer surface of the conveying roller 8. A belt 16 is connected between the second pulley 15 and the first pulley 13. When the transmission shaft 10 rotates counterclockwise, the ratchet pawl 11 is driven by the torsion spring shaft 12 to pop out and reset, and the ratchet pawl 11 cannot rotate and avoid being in contact with the inner ratchet groove 14 and the transmission shaft 10. Therefore, the transmission shaft 10 drives the first pulley 13 to rotate through the ratchet pawl 11. Then, the first pulley 13 drives the second pulley 15 to rotate through the belt 16, and further drives the conveying roller 8 to rotate.

[0039] Refer to Figure 1 、 Figure 2 and Figure 4 In the above embodiment, there are four conveying rollers 8. The four conveying rollers 8 respectively penetrate through both sides of the back of the device main body 1. There are two second pulleys 15 and two belts 16. Both belts 16 are connected to the first pulley 13. The two second pulleys 15 are respectively connected to the two conveying rollers 8. Gears 9 are connected to the backs of the four conveying rollers 8. The first pulley 13 drives the second pulley 15 to rotate through the belt 16, and further drives the conveying roller 8 to rotate. At the same time, the four gears 9 are meshed in pairs, so that the four conveying rollers 8 rotate towards each other to convey the corrugated board in preparation for trimming the edge next time; a secondary roller 5 is connected to one side of the top of the swing frame 3. The secondary roller 5 is rotatably connected to the swing frame 3, and the wear between the corrugated board and the swing frame 3 is reduced through the secondary roller 5.

[0040] Embodiment 2:

[0041] On the basis of the above Embodiment 1, in order to facilitate the collection of the waste edges generated after trimming, the following settings are now made.

[0042] Refer to Figure 1 In the above embodiment, a carriage 6 is connected to the bottom of the device main body 1, and a collection box 7 is connected inside the carriage 6. The collection box 7 is located below the cutting knife 4, and the edges cut by the cutting knife 4 fall into the collection box 7 under the influence of gravity; the collection box 7 is detachably connected to the carriage 6. When the collection box 7 is full, the staff can directly pull out the collection box 7 from the carriage 6 for cleaning. After cleaning the collection box 7, the staff can put the collection box 7 back into the carriage 6 to continue collecting the trimmed waste edges.

[0043] The implementation principle of the present utility model is as follows: First, the staff passes the corrugated cardboard through the four conveying rollers 8. Then, the staff turns on the motor 2. After the motor 2 starts, the output end drives the swing frame 3 to rotate clockwise, so that the cutting knife 4 rotates downward. The cutting knife 4 cooperates with the edge of the device main body 1 to form scissors, so as to cut off the corners of the corrugated cardboard. When the swing frame 3 drives the cutting knife 4 to rotate clockwise downward to trim the edge, the swing frame 3 drives the transmission shaft 10 to rotate clockwise together. At this time, the pawl 11 is pushed open by the inner ratchet groove 14 to compress the spring, so that the transmission shaft 10 will not drive the first belt pulley 13 to rotate;

[0044] After cutting, the output end of the motor 2 drives the swing frame 3 and the cutting knife 4 to rotate counterclockwise upward to reset, and the transmission shaft 10 rotates counterclockwise together. At this time, the pawl 11 is driven to pop out and reset by the torsion spring shaft 12, and the pawl 11 abuts against the inner ratchet groove 14 and the transmission shaft 10 and cannot rotate to avoid it, so that the transmission shaft 10 drives the first belt pulley 13 to rotate through the pawl 11. Then, the first belt pulley 13 drives the second belt pulley 15 to rotate through the belt 16, so as to drive the conveying roller 8 to rotate. At the same time, through the meshing of the four gears 9 in pairs, the four conveying rollers 8 rotate towards each other to convey the corrugated cardboard and prepare for the next edge trimming; it should be noted that the ratio of the sizes between the first belt pulley 13 and the second belt pulley 15 in the figure is for reference only. If a large feed rate for conveying the corrugated cardboard is required, a first belt pulley 13 with a larger diameter and a second belt pulley 15 with a smaller rotation diameter can be selected. The larger first belt pulley 13 drives the smaller second belt pulley 15 to rotate to form a speed increasing mechanism, accelerating the rotation speed of the conveying roller 8 to increase the feed rate of the corrugated cardboard;

[0045] The edges cut by the cutting knife 4 fall into the collection box 7 under the influence of gravity. When the collection box 7 is full, the staff can directly pull out the collection box 7 from the carriage 6 for cleaning. After cleaning the collection box 7, the staff can put the collection box 7 back into the carriage 6 to continue collecting the trimmed waste edges.

[0046] Although embodiments of the present utility model have been shown and described, the specific embodiments are only explanations of the present utility model and not limitations thereof. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations that do not make creative contributions to the embodiments as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

Claims

1. An edge trimming device for processing corrugated cardboard, comprising a device body (1) and a conveying roller (8), characterized in that: A motor (2) is installed on the back of the device body (1), and the output end of the motor (2) is connected to a swing frame (3), and a shearing knife (4) is fixed at the bottom of the swing frame (3); the outer surface of the shearing knife (4) is connected to a transmission shaft (10), and the transmission shaft (10) is connected to a ratchet (11) via a torsion spring shaft (12); a bracket (17) is fixed to one side of the outer surface of the device body (1), and the bracket (17) is connected to a first pulley (13), and the inner ring of the first pulley (13) is provided with an inner ratchet groove (14); the outer surface of the conveying roller (8) is connected to a second pulley (15), and a belt (16) is connected between the second pulley (15) and the first pulley (13).

2. The edge trimming device for processing corrugated cardboard according to claim 1, characterized in that: The swing frame (3) is rotatably connected to the device body (1), and two shearing knives (4) are provided, and the two shearing knives (4) are arranged in a mirror image.

3. The edge trimming device for processing corrugated cardboard according to claim 1, characterized in that: The transmission shaft (10) is located inside the first belt pulley (13), and there is a gap between the transmission shaft (10) and the first belt pulley (13), and the first belt pulley (13) is rotatably connected to the bracket (17).

4. The edge trimming device for processing corrugated cardboard according to claim 3, characterized in that: The ratchet pawl (11) is rotatably connected to the transmission shaft (10) via a torsion spring shaft (12), and the ratchet pawl (11) abuts against the inner ratchet groove (14).

5. The edge trimming device for processing corrugated cardboard according to claim 4, characterized in that: A plurality of the ratchet pawls (11) and the torsion spring shafts (12) are provided, and the plurality of ratchet pawls (11) and the torsion spring shafts (12) are distributed in a ring array.

6. The edge trimming device for processing corrugated cardboard according to claim 1, characterized in that: Four conveying rollers (8) are provided, and the four conveying rollers (8) respectively penetrate the two sides of the back of the device body (1), the backs of the four conveying rollers (8) are all connected to gears (9), and one side of the top of the swing frame (3) is connected to an auxiliary roller (5).

7. The edge trimming device for processing corrugated cardboard according to claim 6, characterized in that: Two of the second pulleys (15) and the belts (16) are provided, and the two belts (16) are connected to the first pulley (13), and the two second pulleys (15) are connected to the two conveying rollers (8) respectively.

8. The edge trimming device for processing corrugated board according to claim 6, characterized in that: The auxiliary roller (5) is rotatably connected to the swing frame (3).

9. The edge trimming device for processing corrugated cardboard according to claim 1, characterized in that: The bottom of the device body (1) is connected to a slide frame (6), and the interior of the slide frame (6) is connected to a collection box (7).

10. The edge trimming device for processing corrugated board according to claim 9, characterized in that: The collecting box (7) is located below the shearing knife (4), and the collecting box (7) is detachably connected to the sliding frame (6).

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