A paperboard slotter

Abstract

The utility model relates to a paperboard grooving machine which is more stable and lower in cost. The paperboard grooving machine comprises a rack, a large roller, a paper pressing belt and a grooving cutter installed on the rack. The paper pressing belt is partially attached to the large roller. The paper pressing belt and the large roller have an inlet end and an outlet end. The grooving cutter is located on the side where the large roller and the paper pressing belt are attached. The grooving cutter comprises a first cutter bar, a second cutter bar, a cutter head and a blade. The blade is installed on the cutter head. The cutter head is installed on the second cutter bar. The second cutter bar is slidably installed on the first cutter bar through a crossed straight linear rail. A cylinder or an electromagnet is installed on the first cutter bar. The cylinder or the electromagnet can drive the second cutter bar to move back and forth. The paperboard grooving machine can move the cutter head back and forth through the cylinder, thereby achieving partial grooving of the paperboard. The paperboard grooving machine is lighter, more stable and lower in cost.

Description

Technical Field

[0001] This utility model relates to a cardboard processing equipment, specifically a cardboard slotting machine. Background Technology

[0002] A cardboard slotting machine is a device that slots cardboard, allowing the cardboard to be used for box making. With the increasing adoption of cardboard slotting technology, more and more cardboard requires partial slotting functionality. Existing partial slotting machines all use a power source to drive the cutter head to complete the partial slotting. Due to the weight of the cutter head and cutter bar, the high-speed reciprocating motion generates significant inertia, requiring substantial driving force to ensure stability. Currently, independent servo motors combined with lead screws are used for drive, resulting in a large overall size and high cost. Furthermore, existing encoders are mounted on the large roller shaft, requiring extremely high concentricity to ensure accurate speed measurement, posing certain challenges in processing and assembly. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, this utility model innovatively provides a cardboard slotting machine with more stable cutter operation and lower cost.

[0004] This cardboard slotting machine includes a frame on which a large roller, a paper-pressing belt, and slotting cutters are mounted. The paper-pressing belt is partially attached to the large roller, and there is a paper inlet and a paper outlet between the paper-pressing belt and the large roller. The slotting cutters are located on the side of the large roller that is attached to the paper-pressing belt. The slotting cutters are characterized in that: the slotting cutters include a first cutter bar, a second cutter bar, a cutter head, and a blade. The blade is located on the cutter head, and the cutter head is mounted on the second cutter bar. The second cutter bar is slidably mounted on the first cutter bar via a cross-linear track. The first cutter bar is equipped with a cylinder or an electromagnet, which can drive the second cutter bar to move back and forth.

[0005] A speed measuring wheel is installed on the frame. The speed measuring wheel interacts with the paper pressing belt. The axle of the speed measuring wheel is connected to an encoder. The encoder is connected to the input terminal of the controller. The controller controls the operation of the cylinder or electromagnet.

[0006] A photoelectric sensor is installed on the frame, and the photoelectric sensor is electrically connected to the controller.

[0007] The cutter head is rotatably mounted on the second cutter bar via a rotating shaft. The cutter head is connected to the second cutter bar by bolts. The second cutter bar has a through hole, and the cutter head has a threaded hole. The bolt passes through the through hole and the axial hole of the rotating shaft and is threadedly connected to the threaded hole. A set screw is bolted to the second cutter bar, and the set screw can act on the cutter head. A spring is provided between the cutter head and the second cutter bar, and the spring can provide a reverse force to the cutter head.

[0008] The first tool holder has a limiting groove, and the second tool holder has a limiting part. The limiting part is located in the limiting groove, and the limiting groove has space for the limiting part to move back and forth.

[0009] The second tool holder is provided with a limiting member, and the first tool holder is provided with a buffer software. The limiting member can act on the buffer software.

[0010] The cross linear guide includes a cross ball guide or a cross roller guide, and a slider is slidably provided on the cross ball guide or the cross roller guide, and the slider is connected to the second tool bar.

[0011] A crossbeam is mounted on the frame, and a transverse guide rail is provided on the crossbeam. The first tool bar is connected to the tool holder, and the tool holder is laterally adjustable and mounted on the transverse guide rail.

[0012] According to the present invention, a cardboard slotting machine is provided. The first cutter bar is driven by a cylinder to move relative to the second cutter bar, which allows the cutter head to move back and forth, thereby enabling partial slotting of the cardboard. This slotting machine is lighter, runs more stably, and has a lower cost. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the grooving tool. Figure 4 This is a partial schematic diagram of a grooving tool; Figure 5 This is a schematic diagram of the structure of the second tool holder and the rotating shaft; Figure 6 This is a schematic diagram of the mechanism for a cross ball bearing guide. Detailed Implementation

[0014] like Figure 1 and Figure 2 As shown, this cardboard slotting machine includes a frame 1, on which a large roller 2, a pressure belt 4, and a slotting cutter 3 are mounted. The pressure belt 4 is partially attached to the large roller 2, and there is an infeed end 20 and an outlet end 21 between the pressure belt 4 and the large roller 2. The slotting cutter 3 is located on the side of the large roller 2 where the pressure belt 4 is attached. During operation, the cardboard enters from the infeed end 20. Under the action of the pressure belt 4, the cardboard is attached to the large roller 2. With the coordinated conveying of the large roller 2 and the pressure belt 4, the cardboard moves with the large roller 2, and the slotting cutter 3 slots the cardboard. Finally, the cardboard exits from the outlet end 21.

[0015] In order to achieve local grooving, such as Figure 3As shown, the grooving tool 3 includes a first tool holder 30, a second tool holder 31, a tool head 32, and a cutting blade 33. The cutting blade 33 is mounted on the tool head 32, which is located on the second tool holder 31. The second tool holder 31 is slidably mounted on the first tool holder 30 via a cross-linear guide 341 (the cross-linear guide 341 is existing technology, ensuring compact installation and sufficient rigidity). The first tool holder 30 is equipped with a cylinder 34 or an electromagnet, which drives the second tool holder 31 to slide back and forth. Driven by the cylinder 34 or the electromagnet, the second tool holder 31 can slide back and forth along the cross-linear guide 341. When partial slotting of the cardboard is required, the controller controls the output of cylinder 34 or electromagnet to move the second cutter bar 31 forward along the intersecting linear guide 341, thus moving the cutter head 32 and blade 33 forward. When the cutter head 32 is in the forward position, it slots the cardboard. After partial slotting is completed, cylinder 34 or electromagnet drives the second cutter bar 31 to move backward, thus moving the cutter head 32 and blade 33 backward. Although the cardboard is moving, the cutter head 32 does not act on the cardboard, and therefore does not slot it. It is worth mentioning that when cylinder 34 is used, the controller specifically controls solenoid valve 37 (which controls the air source), and solenoid valve 37 controls the action of cylinder 34; when electromagnet is used, solenoid valve 37 is not needed. Because cylinder 34 or electromagnet is used for driving, the weight is light, the inertia is small, the movement is more stable, and the cost is lower.

[0016] In order to precisely control the length of the local slotting in the cardboard, such as Figure 2 As shown, a speed measuring wheel 5 is installed on the frame 1. The speed measuring wheel 5 interacts with the paper pressing belt 4. The axle of the speed measuring wheel 5 is electrically connected to an encoder, which is connected to the input terminal of the controller. The controller controls the operation of the cylinder 34 or the electromagnet. Since the paper pressing belt 4 moves a certain distance, the cardboard moves the same distance. Because the speed measuring wheel 5 interacts with the paper pressing belt 4, and the linear velocity of the speed measuring wheel 5 is the same as that of the paper pressing belt 4, the speed measuring wheel 5 can measure the distance the cardboard has moved. Since the axle of the speed measuring wheel 5 is electrically connected to the encoder, the encoder can obtain the data of the cardboard's movement distance. The encoder then transmits the data to the controller, which in turn controls the cylinder 34 or the electromagnet to operate. This allows for precise control of the length of the local slotting on the cardboard.

[0017] A photoelectric sensor 6 is installed on the frame 1, and the photoelectric sensor 6 is electrically connected to the controller. The photoelectric sensor 6 can detect the position of the cardboard and also transmit the signal to the controller. The controller obtains accurate data on the position change of the cardboard based on the data from the encoder and the data from the photoelectric sensor 6. Then the controller sends a command to the cylinder 34, which controls the cutter head 32 and the blade 33 to move forward.

[0018] In order to adjust the angle of the blade 33 to meet the requirements of different slotting widths of the cardboard, such as Figure 4 As shown, Figure 5 As shown, the cutter head 32 is rotatably mounted on the second cutter bar 31 via a rotating shaft 38. Figure 3 As shown, the cutter head 32 is connected to the second cutter shank 31 by bolt 39, as... Figure 5 As shown, the second tool holder 31 has a through hole 311, such as Figure 3 As shown, the cutter head 32 has a threaded hole 320. A bolt 39 passes through the through hole 311 and the axial hole of the rotating shaft 38, and is threadedly connected to the threaded hole 320. A set screw 312 is bolted to the second cutter shank 31, which acts on the cutter head 32 from above. A spring 36 is provided between the cutter head 32 and the second cutter shank 31. This spring 36 can provide a reverse force to the cutter head 32 (that is, an upward force on the cutter head 32, such as...). Figure 4 The drive rotates the blade 33 upwards. When adjusting, as... Figure 3 As shown, loosen bolt 39 and then rotate set screw 312 (to make set screw 312 rotate upward). Spring 36 will make cutter head 32 rotate around the axis of rotation shaft 38. In this way, cutter head 32 rotates upward, and the angle of blade 33 relative to cardboard will change, so that grooves of different widths can be cut on cardboard. After adjusting the angle of cutter head 32, tighten bolt 39 to secure cutter head 32 to the second cutter bar 31.

[0019] To prevent the second tool holder 31 from slipping off the first tool holder 30, as follows: Figure 3 As shown, the first tool holder 30 has a limiting groove 300, while the second tool holder 31 has a limiting part 310. The limiting part 310 is located within the limiting groove 300, and the limiting groove 300 provides space for the limiting part 310 to move back and forth. When the second tool holder 31 slides on the first tool holder 30, the limiting part 310 moves within the limiting groove 300, thus preventing the second tool holder 31 from sliding off the first tool holder 30.

[0020] To prevent the limiting part 310 from making direct contact with the limiting groove 300, such as Figure 6 As shown, the second cutter bar 31 is provided with a limiting member 350 (the limiting member 350 is specifically connected to the slider 35), and the first cutter bar 30 is provided with a buffer software 340 (the buffer software 340 is specifically located on the cylinder 34). Since the buffer software 340 is made of an elastic material (such as rubber), the limiting member 350 acts on the buffer software 340 to provide a buffering effect, thus preventing the limiting part 310 from colliding hard with the limiting groove 300. In other words, before the limiting part 310 hits the side wall of the limiting groove 300, the limiting member 350 acts on the buffer software 340 to slow down the speed of the second cutter bar 31, and finally the limiting part 310 stops on the side wall of the limiting groove 300.

[0021] like Figure 3 As shown, the cross linear guide 341 is a cross ball guide or a cross roller guide. A slider 35 is slidably mounted on the cross ball guide or the cross roller guide. The slider 35 is connected to the second cutter bar 31. The cylinder 34 or an electromagnet drives the slider 35 to slide, which in turn drives the second cutter bar 31 to move.

[0022] like Figure 5 As shown, the intersecting linear guide 341 is disposed on the upper surface of the cylinder 34 or electromagnet body, allowing the drive mechanism to be located between the second tool holder 31 and the first tool holder 30. This fully utilizes the space between the second tool holder 31 and the first tool holder 30, minimizing the overall size and weight of the grooving tool, thus facilitating its lightweight and miniaturization.

[0023] In order to adjust the slotting position of the cardboard, such as Figure 1 As shown, a crossbeam 7 is mounted on the frame 1, and a transverse guide rail is provided on the crossbeam 7. The first knife bar 30 is connected to the knife holder, and the knife holder is horizontally adjustable on the transverse guide rail. By moving the position of the knife holder on the crossbeam 7, the left and right positions of the slotting knife 3 can be adjusted, thereby adjusting the slotting position of the cardboard.

Claims

1. A cardboard slotting machine, comprising a frame (1), on which a large roller (2), a paper-pressing belt (4), and a slotting cutter (3) are mounted, wherein the paper-pressing belt (4) is partially attached to the large roller (2), and the paper-pressing belt (4) and the large roller (2) have a paper inlet end (20) and a paper outlet end (21), and the slotting cutter (3) is located on the side of the large roller (2) that is attached to the paper-pressing belt (4), characterized in that: The grooving tool (3) includes a first tool bar (30), a second tool bar (31), a tool head (32), and a blade (33). The blade (33) is mounted on the tool head (32), and the tool head (32) is located on the second tool bar (31). The second tool bar (31) is slidably mounted on the first tool bar (30) via a cross linear guide (341). The first tool bar (30) is equipped with a cylinder (34) or an electromagnet, which can drive the second tool bar (31) to move back and forth.

2. The cardboard slotting machine according to claim 1, characterized in that: A speed measuring wheel (5) is installed on the frame (1). The speed measuring wheel (5) interacts with the paper pressing belt (4). The axle of the speed measuring wheel (5) is connected to the encoder. The encoder is connected to the input end of the controller. The controller controls the cylinder (34) or electromagnet to work.

3. A cardboard slotting machine according to claim 2, characterized in that: A photoelectric eye (6) is installed on the frame (1), and the photoelectric eye (6) is electrically connected to the controller.

4. A cardboard slotting machine according to claim 1, 2 or 3, characterized in that: The cutting head (32) is rotatably mounted on the second cutting rod (31) via a rotating shaft (38). The cutting head (32) is connected to the second cutting rod (31) via a bolt (39). The second cutting rod (31) has a through hole (311), and the cutting head (32) has a threaded hole (320). The bolt (39) passes through the through hole (311) and the axial hole of the rotating shaft (38) and is threadedly connected to the threaded hole (320). The second cutting rod (31) is bolted with a set screw (312), which can act on the cutting head (32). A spring (36) is provided between the cutting head (32) and the second cutting rod (31), and the spring (36) can give the cutting head (32) a reverse force.

5. A cardboard slotting machine according to claim 1, 2 or 3, characterized in that: The first tool holder (30) has a limiting groove (300), and the second tool holder (31) has a limiting part (310). The limiting part (310) is located in the limiting groove (300), and the limiting groove (300) has space for the limiting part (310) to move back and forth.

6. A cardboard slotting machine according to claim 5, characterized in that: The second tool holder (31) is provided with a limiting member (350), and the first tool holder (30) is provided with a buffer software (340). The limiting member (350) can act on the buffer software (340).

7. A cardboard slotting machine according to claim 1, 2 or 3, characterized in that: The cross linear guide (341) includes a cross ball guide or a cross roller guide, and a slider (35) is slidably provided on the cross ball guide or the cross roller guide. The slider (35) is connected to the second cutter bar (31).

8. A cardboard slotting machine according to claim 7, characterized in that: The cross-linear rail (341) is located on the upper surface of the cylinder (34) or the electromagnet, and both the cross-linear rail (341) and the cylinder (34) are located between the first tool bar (30) and the second tool bar (31).

9. A cardboard slotting machine according to claim 1, 2 or 3, characterized in that: A crossbeam (7) is installed on the frame (1), and a transverse guide rail is provided on the crossbeam (7). The first tool bar (30) is connected to the tool holder, and the tool holder is arranged on the transverse guide rail in a transversely adjustable manner.

Images