Paperboard splitting machine

Abstract

The utility model relates to the technical field of slitting equipment, and discloses a paperboard slitting machine which comprises two symmetrical bearing frames, a plurality of conveying belts arranged between the two bearing frames, a first adjusting unit arranged between the two bearing frames and used for adjusting the distance between the conveying belts, and a second adjusting unit arranged between the two bearing frames and used for adjusting the distance between the conveying belts. An inverted-U-shaped fixing frame used for fixedly installing the bearing frames is arranged above the two bearing frames, a first rotating shaft with the polygonal section is rotationally connected between the opposite side walls in the fixing frame, and a plurality of cutting pieces are arranged on the side face of the first rotating shaft. A second adjusting unit used for adjusting the position of the cutting piece is arranged between the cutting piece and the side face of the first rotating shaft. According to the paperboard slitting device, due to the fact that the gaps exist between the multiple conveying belts, when the paperboard is slit, the cutting pieces cannot damage the conveying belts, the paperboard can be slit into two or more pieces, the cutting pieces can completely cut the paperboard thoroughly, and the effect after the paperboard is slit is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slitting equipment, in particular to a cardboard slitting machine. Background Art

[0002] A slitting machine is a mechanical device that cuts wide cardboard, mica tape or film into multiple narrow materials. It is commonly used in papermaking machinery, wire and cable mica tape and printing and packaging machinery. Existing cardboard slitting machines usually include a conveying mechanism and a cutting mechanism. The conveying mechanism includes rollers, which push the cardboard to the bottom of the cutting mechanism for cutting through the friction of the rollers.

[0003] In order to facilitate the slitting of cardboard, the prior art has made many improvements to the cardboard slitting machine. For example, the patent publication number CN218285690U discloses a cardboard slitting machine, which includes a conveying device, a screw is provided above the conveying device, and threads with opposite rotation directions are provided at both ends of the screw. Fixed blocks are respectively provided on the two sections of the thread, and the fixed blocks are connected to the screw through nuts. A lifting device is provided below the fixed block, and a cutting device for cutting the cardboard is provided at the movable end of the lifting device. A power device for driving the screw to rotate is provided at one end of the screw, and a collecting device for collecting chips and debris is provided on the conveying device; when the size of the cut cardboard needs to be adjusted, the screw is driven to rotate by the rotation of the power device. Since the threads at both ends of the screw are reverse threads, when rotating, the fixed blocks will rotate in opposite directions and drive the cutting device to run in opposite directions. The two cutting devices are driven to move by the power device to change the size of the three cut cardboards.

[0004] The above patents have obvious beneficial effects, but still have the following deficiencies in actual operation:

[0005] In the above-mentioned comparative documents, the cardboard is placed on a conveying device for conveying, and the positions of the two cutting devices are adjusted by rotating the screw to achieve the effect of adjustable slitting width. However, in reality, since the conveying device is usually integrated, the conveyor belt conveys the cardboard, and the cardboard is in a close contact with the cardboard when being conveyed on the conveying device. At this time, when the cardboard is slit by the cutting device, there is a possibility that the conveyor belt may be damaged or the cardboard may not be cut through, which reduces the effect of the cardboard slitting. Therefore, there is an urgent need to improve the cardboard slitting machine in this field to solve the defects of the existing technology. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a cardboard slitting machine to improve the effect of cardboard slitting.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a cardboard slitting machine, comprising two symmetrical carriers, several conveyor belts are provided between the two carriers, a first adjustment unit for adjusting the spacing between the conveyor belts is provided between the two carriers, a fixing frame for fixing the carriers and in an inverted U shape is provided above the two carriers, a first rotating shaft with a polygonal cross-section is rotatably connected between the opposite side walls in the fixing frame, several cutting pieces are provided on the side of the first rotating shaft, a second adjustment unit for adjusting the position of the cutting pieces is provided between the cutting pieces and the side of the first rotating shaft, pressing units for pressing the cardboard on the conveyor belts are provided on opposite sides of the fixing frame, a first drive motor for driving the several conveyor belts to rotate simultaneously is fixedly installed on one side of the carrier, and a second drive motor for driving the first rotating shaft to rotate is fixedly installed on one side of the fixing frame.

[0008] Preferably, the first adjustment unit includes two second rotating shafts that are symmetrically connected between the two supporting frames and have a polygonal cross-section. The side surfaces of the second rotating shafts are sleeved with a number of movable seats with an I-shaped cross-section. The conveyor belt is sleeved between the side surfaces of the two movable seats. The side surfaces of the movable seats are threadedly connected with a number of first limiting bolts, one end of which is against the side surface of the second rotating shaft.

[0009] Preferably, the second adjustment unit includes several movable rings sleeved on the side of the first rotating shaft, the cutting piece is fixedly installed on the side of the movable ring, and the side of the movable ring is threadedly connected with several second limiting bolts with one end abutting against the side of the first rotating shaft.

[0010] Preferably, the pressing unit includes fixing plates fixedly connected to opposite sides of the fixing frame, a third rotating shaft is rotatably connected between the two fixing plates, and a resilient pressing roller is fixedly connected to a side surface of the third rotating shaft.

[0011] Preferably, one end of the third rotating shaft passes through a fixed plate and extends beyond one side of the fixed plate, a second transmission wheel is fixedly mounted on the side of the end portion of the third rotating shaft extending beyond the fixed plate, a first transmission wheel adapted to the second transmission wheel is fixedly mounted on the side of the output end of the second drive motor, and a transmission belt for transmission is sleeved between the sides of the first transmission wheel and the two second transmission wheels.

[0012] Preferably, first limiting grooves are formed on multiple side surfaces of the first rotating shaft, and one end of the first limiting bolt is tightly pressed against the first limiting groove.

[0013] Preferably, second limiting grooves are formed on multiple side surfaces of the second rotating shaft, and one end of the second limiting bolt is tightly pressed against the second limiting groove.

[0014] In view of the shortcomings of the existing technology, the present invention provides a cardboard slitting machine, which overcomes the shortcomings of the existing technology. The beneficial effects of the present invention are:

[0015] 1. In the present invention, by setting a plurality of conveyor belts with a gap between them, when the cardboard is cut, the cutting piece will not damage the conveyor belt, and the cardboard can be cut into two or more pieces. The cutting piece can completely cut through the cardboard, thereby improving the effect of the cardboard cutting.

[0016] 2. In the present invention, the movable seat can slide along the side of the second rotating shaft, and the position of the movable seat can be fixed by cooperating with the first limiting bolt. The movable ring can slide along the side of the first rotating shaft, and the position of the movable ring can be limited and fixed by cooperating with the second limiting bolt. The spacing between the conveyor belts and the cutting pieces can be adjusted according to the required cutting width of the cardboard, thereby improving the applicability of the overall slitting device.

[0017] 3. In the present invention, the pressing rollers are arranged on both sides of the fixed frame, and the pressing rollers press the cardboard before and after slitting, thereby improving the quality of the cardboard slitting.

[0018] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a structural schematic diagram of several parts of the conveyor belt in the utility model;

[0022] Figure 3 This is a schematic structural diagram of the fixing frame and the pressing roller in the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the first rotating shaft in the utility model

[0024] Figure 5 for Figure 2 A in the middle is an enlarged structural diagram;

[0025] Figure 6 for Figure 3The enlarged structural diagram at B in the middle;

[0026] Figure 7 for Figure 4 Enlarged structural diagram at point C in the middle.

[0027] In the figure: 1. Carrying frame; 2. Conveyor belt; 3. First adjusting unit; 4. Fixed frame; 5. First rotating shaft; 6. Cutting piece; 7. Second adjusting unit; 8. Pressing unit; 9. First driving motor; 10. Second driving motor; 11. Second rotating shaft; 12. Moving seat; 13. First limiting bolt; 14. Moving ring; 15. Second limiting bolt; 16. Fixed plate; 17. Pressing roller; 18. Third rotating shaft; 19. First transmission wheel; 20. Second transmission wheel; 21. Transmission belt; 22. First limiting groove; 23. Second limiting groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Example 1

[0030] See also Figure 1-Figure 7 A cardboard slitting machine comprises two symmetrical carriers 1, several conveyor belts 2 are provided between the two carriers 1, a first adjusting unit 3 for adjusting the spacing between the conveyor belts 2 is provided between the two carriers 1, a fixing frame 4 in an inverted U shape for fixing the carriers 1 is provided above the two carriers 1, a first rotating shaft 5 with a polygonal cross-section is rotatably connected between the opposite side walls in the fixing frame 4, several cutting pieces 6 are provided on the side of the first rotating shaft 5, a second adjusting unit 7 for adjusting the position of the cutting piece 6 is provided between the cutting piece 6 and the side of the first rotating shaft 5, a pressing unit 8 for pressing the cardboard on the conveyor belt 2 is provided on opposite sides of the fixing frame 4, a first driving motor 9 for driving the several conveyor belts 2 to rotate simultaneously is fixedly installed on one side of the carrier 1, and a second driving motor 10 for driving the first rotating shaft 5 to rotate is fixedly installed on one side of the fixing frame 4.

[0031] Specific implementation method in this embodiment: when it is necessary to cut the cardboard, the spacing between the several conveyor belts 2 is adjusted by the first adjusting unit 3 according to the width of the cardboard after cutting, and the position of the cutting piece 6 on the side of the first rotating shaft 5 is adjusted by the second adjusting unit 7. The position of the cutting piece 6 is located between the two conveyor belts 2. The cardboard is placed on the conveyor belt 2 by manual or mechanical arms, and the first drive motor 9 and the second drive motor 10 are started. The first drive motor 9 drives the several conveyor belts 2 to rotate, driving the cardboard to move. At the same time, the pressing unit 8 presses the cardboard, and the output end of the second drive motor 10 drives the first rotating shaft 5 to rotate. The first rotating shaft 5 drives the cutting piece 6 to rotate to cut the cardboard. Through the above arrangement, the cardboard can be cut into two or more pieces, and the adjustable conveyor belt 2 will not damage the conveyor belt 2. The cutting piece 6 can completely cut through the cardboard, thereby improving the effect of cardboard cutting.

[0032] Among them, the first drive motor 9 and the second drive motor 10 mentioned above can both be purchased on the market. They are mature technologies and have been fully disclosed, so they are not repeated in the specification. The first drive motor 9 and the second drive motor 10 are both equipped with power connection lines, and they are electrically connected to the external main controller and 220V phase voltage (or 380V line voltage) through the power lines, and the main controller can be a conventional known device such as a computer that plays a control role.

[0033] Example 2

[0034] See also Figure 1-Figure 7 , this embodiment includes the above embodiment, wherein the first adjusting unit 3 includes two second rotating shafts 11 symmetrically connected to the two supporting frames 1 and having a polygonal cross-section, a plurality of movable seats 12 with an I-shaped cross-section are sleeved on the side of the second rotating shaft 11, the conveyor belt 2 is sleeved between the sides of the two movable seats 12, and a plurality of first limiting bolts 13 with one end against the side of the second rotating shaft 11 are threadedly connected on the side of the movable seat 12, the second adjusting unit 7 includes a plurality of movable rings 14 sleeved on the side of the first rotating shaft 5, the cutting piece 6 is fixedly mounted on the side of the movable ring 14, and a plurality of second limiting bolts 15 with one end against the side of the first rotating shaft 5 are threadedly connected on the side of the movable ring 14, the first rotating shaft 5 is provided with a plurality of first limiting grooves 22 on multiple sides, one end of the first limiting bolt 13 is tightly abutted in the first limiting groove 22, and a plurality of second limiting grooves 23 are provided on multiple sides of the second rotating shaft 11, and one end of the second limiting bolt 15 is tightly abutted in the second limiting groove 23.

[0035] Specific implementation method in this embodiment: When the spacing between the conveyor belts 2 needs to be adjusted, loosen the first limiting bolt 13, slide the movable seat 12 on the side of the second rotating shaft 11, and then drive the conveyor belt 2 to adjust its position. When the movable seat 12 moves, one end of the first limiting bolt 13 slides in the second limiting groove 23. After the position of the conveyor belt 2 is adjusted, tighten several first limiting bolts 13. One end of the first limiting bolt 13 is tightly against the inner wall of the second limiting groove 23 to limit and fix the position of the movable seat 12. The second limiting groove 2 3 To improve the stability of the movable seat 12 after being limited, when the position of the cutting piece 6 needs to be adjusted, the second limiting bolt 15 is loosened, and the movable ring 14 is slid along the side of the first rotating shaft 5. The end of the second limiting bolt 15 slides in the first limiting groove 22. After the position of the cutting piece 6 is adjusted to a suitable position, several second limiting bolts 15 are tightened. The end of the second limiting bolt 15 is tightly pressed against the inner wall of the first limiting groove 22 to limit and fix the position of the movable ring 14. At the same time, the stability of the movable ring 14 after being limited is improved by providing the first limiting groove 22.

[0036] Implementation Three

[0037] See also Figure 3 、 Figure 4 and Figure 6 , this embodiment includes all the above embodiments, wherein the clamping unit 8 includes a fixed plate 16 fixedly connected to the opposite side of the fixed frame 4, a third rotating shaft 18 is rotatably connected between the two fixed plates 16, and a flexible clamping roller 17 is fixedly connected to the side of the third rotating shaft 18, one end of the third rotating shaft 18 passes through a fixed plate 16 and extends beyond one side of the fixed plate 16, a second transmission wheel 20 is fixedly installed on the side of the end of the third rotating shaft 18 extending beyond the fixed plate 16, a first transmission wheel 19 adapted to the second transmission wheel 20 is fixedly installed on the side of the output end of the second drive motor 10, and a transmission belt 21 for transmission is sleeved between the sides of the first transmission wheel 19 and the two second transmission wheels 20.

[0038] The specific implementation method of this embodiment is as follows: when the second drive motor 10 is started, the output end of the second drive motor 10 drives the first transmission wheel 19 to rotate, and the first transmission wheel 19 drives the two pinch rollers 17 to rotate simultaneously through the transmission belt 21. The pinch rollers 17 can compress the cardboard while driving the cardboard to move. The two pinch rollers 17 have a pinching effect on the cardboard, and the cardboard will not deviate when cutting, and the cardboard after slitting will not deviate, thereby improving the effect of the cardboard slitting.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A cardboard slitting machine, comprising two symmetrical carrier frames (1), characterized in that: A plurality of conveyor belts (2) are provided between the two carriers (1), a first adjustment unit (3) for adjusting the spacing between the conveyor belts (2) is provided between the two carriers (1), a fixed frame (4) in an inverted U shape for fixing the carriers (1) is provided above the two carriers (1), a first rotating shaft (5) with a polygonal cross section is rotatably connected between opposite side walls in the fixed frame (4), a plurality of cutting pieces (6) are provided on the side of the first rotating shaft (5), a second adjustment unit (7) for adjusting the position of the cutting piece (6) is provided between the cutting piece (6) and the side of the first rotating shaft (5), a pressing unit (8) for pressing the cardboard on the conveyor belt (2) is provided on opposite sides of the fixed frame (4), a first driving motor (9) for driving the plurality of conveyor belts (2) to rotate simultaneously is fixedly installed on one side of the carrier (1), and a second driving motor (10) for driving the first rotating shaft (5) to rotate is fixedly installed on one side of the fixed frame (4).

2. A cardboard slitting machine according to claim 1, characterized in that: The first adjustment unit (3) comprises two second rotating shafts (11) symmetrically connected to the two supporting frames (1) and having a polygonal cross section, the side surfaces of the second rotating shafts (11) are sleeved with a plurality of movable seats (12) having an I-shaped cross section, the conveyor belt (2) is sleeved between the side surfaces of the two movable seats (12), and the side surfaces of the movable seats (12) are threadedly connected with a plurality of first limiting bolts (13) whose one end abuts against the side surfaces of the second rotating shafts (11).

3. A cardboard slitting machine according to claim 1, characterized in that: The second adjustment unit (7) comprises a plurality of movable rings (14) sleeved on the side of the first rotating shaft (5); the cutting piece (6) is fixedly mounted on the side of the movable ring (14); and the side of the movable ring (14) is threadedly connected with a plurality of second limiting bolts (15) whose one end abuts against the side of the first rotating shaft (5).

4. A cardboard slitting machine according to claim 1, characterized in that: The pressing unit (8) includes a fixing plate (16) fixedly connected to opposite sides of the fixing frame (4), a third rotating shaft (18) is rotatably connected between the two fixing plates (16), and a side surface of the third rotating shaft (18) is fixedly connected to a pressing roller (17) with elasticity.

5. A cardboard slitting machine according to claim 4, characterized in that: One end of the third rotating shaft (18) passes through a fixed plate (16) and extends beyond one side of the fixed plate (16); a second transmission wheel (20) is fixedly mounted on the side of the end of the third rotating shaft (18) extending beyond the fixed plate (16); a first transmission wheel (19) adapted to the second transmission wheel (20) is fixedly mounted on the side of the output end of the second drive motor (10); and a transmission belt (21) for transmission is sleeved between the sides of the first transmission wheel (19) and the two second transmission wheels (20).

6. A cardboard slitting machine according to claim 2, characterized in that: A plurality of side surfaces of the first rotating shaft (5) are provided with first limiting grooves (22), and one end of the first limiting bolt (13) is tightly pressed against the first limiting groove (22).

7. A cardboard slitting machine according to claim 2, characterized in that: Second limiting grooves (23) are formed on multiple side surfaces of the second rotating shaft (11), and one end of the second limiting bolt (15) is tightly pressed against the second limiting groove (23).

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