A continuous feeding device for a slitting machine

Abstract

This utility model discloses a continuous feeding device for a slitting machine, relating to the field of slitting machines. It includes a support frame, with a baffle fixedly connected to the top of the frame. Inside the baffle, a guide plate for guiding the material conveying direction is fixedly connected. An air-expanding roller for carrying the material roll is provided at the top of the support frame. A swing arm is rotatably connected to one end of the support frame located above the air-expanding roller. An electric push rod is rotatably mounted on one side of the support frame above the swing arm, with its output end rotatably connected to the swing arm. This utility model utilizes the gravity of the material roll itself through the inclined guide plate, enabling it to automatically and smoothly roll towards the air-expanding roller. During feeding, simply place the material roll at the higher end of the guide plate, and the material roll will automatically roll towards the air-expanding roller under gravity, eliminating the need for frequent manual pushing. This ensures continuous feeding, reduces feeding interruptions caused by untimely manual operation, and improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of slitting machines, and in particular to a continuous feeding device for a slitting machine. Background Technology

[0002] In the book processing industry, slitting machines are crucial equipment. Their function is to precisely cut large sheets of paper into smaller sheets of specific sizes to meet the needs of subsequent bookbinding, printing, and other processes. During the feeding process of the slitting machine, the paper rolls to be slit need to be accurately installed onto the air rollers, ensuring that the paper rolls can rotate stably and smoothly to achieve continuous feeding. Existing feeding methods mostly use a combination of manual assistance and simple mechanical devices. Specifically, the operator first needs to move the paper roll to the vicinity of the slitting machine, then use a crane or simple lifting device to lift the paper roll and slowly move it above the air rollers. Then, the operator manually adjusts the paper roll to align the center hole with the air rollers, and finally, the paper roll is put onto the air rollers and secured.

[0003] Paper rolls are typically quite heavy, especially large-format rolls, which can weigh hundreds of kilograms or even tons. Handling and hoisting paper rolls requires significant physical exertion, and prolonged periods of this work can easily lead to operator fatigue, impacting work efficiency and potentially causing workplace accidents. For example, if an operator loses their balance due to exhaustion during handling, the paper roll may fall and injure an employee or damage equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a continuous feeding device for a slitting machine, which solves the problems of high labor intensity and low feeding efficiency in the existing slitting machine feeding process.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A continuous feeding device for a slitting machine includes a support frame, a baffle fixedly connected to the top of the support frame, a guide plate fixedly connected inside the baffle frame for guiding the material conveying direction, an air-expanding roller for carrying the material roll on the top of the support frame, a swing arm rotatably connected to one end of the support frame located on the air-expanding roller, an electric push rod rotatably mounted on one side of the support frame above the swing arm, the output end of the electric push rod being rotatably connected to the swing arm to drive the swing arm to rotate around its rotational connection point with the support frame, a groove on the swing arm, a connector head on one end of the air-expanding roller near the swing arm, the connector head being embedded in the groove, and a drive assembly mounted on the top of the support frame at the other end of the air-expanding roller, the drive assembly being used to drive the air-expanding roller to rotate.

[0006] Preferably, the guide plate is inclined, with the side closer to the slitting machine body having a lower height, guiding the rolling direction of the material roll so that the material roll can automatically and smoothly roll towards the air expansion roller, facilitating the feeding operation, improving feeding efficiency, and reducing the labor intensity of manual handling.

[0007] Preferably, the drive assembly includes a support base, a bearing housing, a motor, a sprocket assembly, and a connecting shaft. The support base is fixedly connected to one side of the top of the bracket, and the bearing housing is fixedly connected to the top of the support base. The connecting shaft is rotatably connected inside the bearing housing. The end of the air roller away from the swing arm is slidably inserted into the connecting shaft. The motor is fixedly installed on the top of the support base, and the output end of the motor is connected to the connecting shaft through the sprocket assembly.

[0008] Preferably, the air roller has keyways symmetrically opened on the outer side of one end near the connecting shaft, and key blocks are symmetrically provided on the inner wall of the corresponding end of the connecting shaft. The key blocks are slidably connected in the corresponding keyways. The cooperation between the key blocks and the keyways ensures that the air roller and the connecting shaft can stably transmit torque and achieve synchronous rotation, while facilitating the installation and disassembly of the air roller.

[0009] Preferably, a support roller is symmetrically and rotatably connected inside the bracket below the air expansion roller, and the axis of the support roller is set parallel to the axis of the air expansion roller. The support roller assists in supporting the material roll, providing a suitable position and height for the material roll, which facilitates the operator to load and change the material roll.

[0010] Preferably, a gantry is fixedly connected to the top of the support, a partition is slidably connected inside the gantry, and a handle is fixedly connected to the top of the partition. The partition controls the timing of the material roll rolling on the guide plate, preventing the material roll from rolling down and interfering when the material roll rotates outside the air expansion roller, thus ensuring the orderly progress of the feeding process.

[0011] Preferably, the sprocket assembly includes a driving sprocket, a driven sprocket, and a chain. The driving sprocket is fixedly installed at the output end of the motor, the driven sprocket is fixedly installed on the connecting shaft, and the chain is wound around the driving sprocket and the driven sprocket. Through the transmission method of the sprocket and the chain, the power transmission between the motor and the connecting shaft is realized.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. This utility model utilizes the gravity of the material roll itself through an inclined guide plate, enabling it to roll automatically and smoothly toward the air expansion roller. During the feeding operation, simply place the material roll at the higher end of the guide plate, and the material roll will automatically roll toward the air expansion roller under the action of gravity, eliminating the need for frequent manual pushing, ensuring the continuity of material supply, reducing material supply interruptions caused by untimely manual operation, and improving production efficiency.

[0014] 2. This utility model can easily drive the swing arm to rotate around the rotation connection point between the electric push rod and the bracket through the extension and retraction of the electric push rod, so as to realize the quick installation and disassembly of the air expansion roller. When the air expansion roller is already fitted with a material roll and is in the rotating feeding state, the partition is inserted into the gantry. The partition can block the subsequent material rolls placed on the guide plate to prevent them from rolling down. When the current material roll on the air expansion roller is used up and needs to be fed, simply pull the partition out of the gantry with the handle. The next material roll blocked on the guide plate will naturally roll towards the air expansion roller under its own gravity. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the support structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the air-expanding roller structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the drive component structure of this utility model.

[0019] Reference numerals: 1. Bracket; 2. Enclosure; 3. Guide plate; 4. Air roller; 5. Swing arm; 6. Electric push rod; 7. Groove; 8. Connector; 9. Drive assembly; 91. Support seat; 92. Bearing seat; 93. Motor; 94. Sprocket assembly; 95. Connecting shaft; 41. Keyway; 951. Key block; 10. Support roller; 11. Gantry; 12. Partition; 13. Handle; 941. Drive sprocket; 942. Driven sprocket; 943. Chain. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figures 1 to 4This embodiment provides a continuous feeding device for a slitting machine, including a support 1. A baffle 2 is fixedly connected to the top of the support 1. A guide plate 3 for guiding the material conveying direction is fixedly connected inside the baffle 2. An air-expanding roller 4 for carrying the material roll is provided on the top of the support 1. A swing arm 5 is rotatably connected to one end of the support 1 located on the air-expanding roller 4. An electric push rod 6 is rotatably installed on one side of the support 1 above the swing arm 5. The output end of the electric push rod 6 is rotatably connected to the swing arm 5 to drive the swing arm 5 to rotate around its rotation connection point with the support 1. A groove 7 is provided on the swing arm 5. A connector 8 is provided at one end of the air-expanding roller 4 near the swing arm 5. The connector 8 is embedded in the groove 7. A drive assembly 9 is installed on the top of the support 1 at the other end of the air-expanding roller 4. The drive assembly 9 is used to drive the air-expanding roller 4 to rotate.

[0022] The continuous feeding device of the slitting machine is installed on one side of the slitting machine body. The material roll is placed on the air expansion roller 4. The electric push rod 6 cooperates with the connector 8 at one end of the air expansion roller 4 through the groove 7 on the swing arm 5. The drive assembly 9 drives the air expansion roller 4 to rotate, thereby driving the material roll on the air expansion roller 4 to rotate, realizing continuous feeding. The enclosure 2 and the guide plate 3 jointly guide the material to be conveyed in the set direction.

[0023] The guide plate 3 is set at an angle, with the side closer to the slitting machine body being lower. During the feeding operation, the operator can place the paper roll to be used on the guide plate 3. Due to the angle of the guide plate 3, the paper roll will naturally roll towards the lower air roller 4 under its own gravity until it rolls to the air roller 4, thus conveniently and quickly completing the feeding operation of the paper roll to the air roller 4. When the current paper roll on the air roller 4 is used up, the air roller 4 is pulled out from the used paper roll, and the next paper roll to be used is inserted into the air roller 4 in the same feeding method to achieve continuous feeding.

[0024] The drive assembly 9 includes a support base 91, a bearing housing 92, a motor 93, a sprocket assembly 94, and a connecting shaft 95. The support base 91 is fixedly connected to one side of the top of the bracket 1, and the bearing housing 92 is fixedly connected to the top of the support base 91. The connecting shaft 95 is rotatably connected inside the bearing housing 92. The end of the air roller 4 away from the swing arm 5 is slidably inserted into the connecting shaft 95. The motor 93 is fixedly installed on the top of the support base 91, and the output end of the motor 93 is connected to the connecting shaft 95 through the sprocket assembly 94.

[0025] After the motor 93 starts, its output end drives the connecting shaft 95 to rotate in the bearing seat 92 through the sprocket assembly 94. Since the end of the air roller 4 away from the swing arm 5 is slidably inserted into the connecting shaft 95, the rotation of the connecting shaft 95 will drive the air roller 4 to rotate synchronously.

[0026] The air roller 4 has keyways 41 symmetrically opened on the outer side of one end near the connecting shaft 95, and key blocks 951 are symmetrically provided on the inner wall of the corresponding end of the connecting shaft 95. The key blocks 951 are slidably connected to the corresponding keyways 41.

[0027] With the cooperation of the keyway 41 and key block 951, when the air roller 4 is inserted into the connecting shaft 95, the key block 951 can be accurately embedded in the corresponding keyway 41, thereby ensuring that the connecting shaft 95 can stably drive the air roller 4 to rotate synchronously when rotating.

[0028] When it is necessary to replace the paper roll, start the electric push rod 6. The electric push rod 6 pushes the swing arm 5 to rotate around its rotation connection point with the bracket 1, so that the connector 8 separates from the groove 7 on the swing arm 5. At this time, the air expansion roller 4 can be pulled out. At the same time as the end of the air expansion roller 4 separates from the connecting shaft 95, the air expansion roller 4 is pulled out from the paper roll that has been used. After placing the next paper roll to be used in a suitable position, insert the air expansion roller 4 into the paper roll. Then, insert the end of the air expansion roller 4 back into the connecting shaft 95 to ensure that the key block 951 is embedded in the keyway 41. Then start the electric push rod 6 again, so that the electric push rod 6 drives the swing arm 5 to rotate in the opposite direction, so that the groove 7 is put back on the connector 8, completing the installation of the air expansion roller 4 and realizing the replacement and feeding of the paper roll.

[0029] Inside the bracket 1, a support roller 10 is symmetrically and rotatably connected below the air expansion roller 4, and the axis of the support roller 10 is parallel to the axis of the air expansion roller 4. The support roller 10 is used to assist in supporting the paper roll that is already fitted on the air expansion roller 4. When changing the paper roll, the paper roll can be placed on the support roller 10. The support roller 10 provides a suitable position and height for the paper roll, making it easy for the operator to operate. Since the support roller 10 is installed by a rotatable connection, when the air expansion roller 4 drives the paper roll to rotate for feeding, the support roller 10 and the paper roll are in relative rolling contact, which will not interfere with the rotation of the paper roll driven by the air expansion roller 4, ensuring the smooth operation of the paper roll changing and feeding operation and the stable operation of the feeding process.

[0030] A gantry 11 is fixedly connected to the top of the bracket 1. A partition 12 is slidably connected inside the gantry 11. A handle 13 is fixedly connected to the top of the partition 12. In actual use, when the air roller 4 is already fitted with a paper roll and is in a rotating feeding state, the partition 12 is inserted into the gantry 11. The bottom of the partition 12 extends above the guide plate 3, thereby blocking the subsequent paper rolls placed on the guide plate 3. This prevents the paper rolls from continuing to roll down under their own weight and interfering with the rotating paper rolls on the outside of the air roller 4, thus affecting the normal feeding process. When the current paper roll on the air roller 4 is finished and needs to be loaded, the operator pulls the partition 12 out of the gantry 11 through the handle 13. At this time, the next paper roll blocked on the guide plate 3 loses the obstruction of the partition 12 and will naturally roll towards the air roller 4 under its own weight, so as to carry out the subsequent loading operation.

[0031] The sprocket assembly 94 includes a drive sprocket 941, a driven sprocket 942, and a chain 943. The drive sprocket 941 is fixedly mounted on the output end of the motor 93, and the driven sprocket 942 is fixedly mounted on the connecting shaft 95. The chain 943 is wound around the drive sprocket 941 and the driven sprocket 942. After the motor 93 is started, the drive sprocket 941 drives the chain 943 to move, and the chain 943 then drives the driven sprocket 942 to rotate, thereby realizing the transmission of the power of the motor 93 from the drive sprocket 941 to the driven sprocket 942, which in turn drives the connecting shaft 95 and the air roller 4 to rotate.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A continuous feeding device for a slitting machine, characterized in that, The device includes a bracket (1), a barrier (2) is fixedly connected to the top of the bracket (1), a guide plate (3) for guiding the material conveying direction is fixedly connected inside the barrier (2), an air roller (4) for carrying the material roll is provided on the top of the bracket (1), a swing arm (5) is rotatably connected to one end of the bracket (1) located on the air roller (4), an electric push rod (6) is rotatably installed on one side of the bracket (1) above the swing arm (5), the output end of the electric push rod (6) is rotatably connected to the swing arm (5) to drive the swing arm (5) to rotate around its rotation connection point with the bracket (1), a groove (7) is provided on the swing arm (5), a connector (8) is provided on one end of the air roller (4) near the swing arm (5), the connector (8) is embedded in the groove (7), and a drive assembly (9) is installed on the other end of the bracket (1) located on the other side of the air roller (4), the drive assembly (9) is used to drive the air roller (4) to rotate.

2. The continuous feeding device for the slitting machine according to claim 1, characterized in that, The guide plate (3) is inclined, and the inclined direction is that the side closer to the slitting machine body is lower.

3. The continuous feeding device for the slitting machine according to claim 1, characterized in that, The drive assembly (9) includes a support base (91), a bearing housing (92), a motor (93), a sprocket assembly (94), and a connecting shaft (95). The support base (91) is fixedly connected to one side of the top of the bracket (1). The bearing housing (92) is fixedly connected to the top of the support base (91). The connecting shaft (95) is rotatably connected inside the bearing housing (92). The end of the air roller (4) away from the swing arm (5) is slidably inserted into the connecting shaft (95). The motor (93) is fixedly installed on the top of the support base (91). The output end of the motor (93) is connected to the connecting shaft (95) through the sprocket assembly (94).

4. The continuous feeding device for the slitting machine according to claim 3, characterized in that, The air roller (4) has a keyway (41) symmetrically opened on the outer side of one end near the connecting shaft (95), and a key block (951) is symmetrically provided on the inner wall of the corresponding end of the connecting shaft (95). The key blocks (951) are slidably connected to the corresponding keyway (41).

5. The continuous feeding device for the slitting machine according to claim 1, characterized in that, The bracket (1) is symmetrically connected to a support roller (10) located below the air expansion roller (4), and the axis of the support roller (10) is parallel to the axis of the air expansion roller (4).

6. The continuous feeding device for the slitting machine according to claim 1, characterized in that, The bracket (1) is fixedly connected to the top of the frame (1), and a partition (12) is slidably connected inside the frame (11). A handle (13) is fixedly connected to the top of the partition (12).

7. The continuous feeding device for the slitting machine according to claim 3, characterized in that, The sprocket assembly (94) includes a drive sprocket (941), a driven sprocket (942), and a chain (943). The drive sprocket (941) is fixedly mounted on the output end of the motor (93), the driven sprocket (942) is fixedly mounted on the connecting shaft (95), and the chain (943) is wound around the drive sprocket (941) and the driven sprocket (942).

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