Paper feeding mechanism of die-cutting machine

Abstract

The utility model discloses a paper feeding mechanism of a die-cutting machine, and relates to the technical field of die-cutting machines, and the paper feeding mechanism comprises a paper feeding table, paper bodies stacked at the top of the paper feeding table, a limiting mechanism mounted at the top of the paper feeding table and used for limiting the stacked paper bodies, and a conveying mechanism mounted at the top of the paper feeding table and used for conveying the paper feeding table; through limiting of the limiting mechanism and the baffle, paper bodies on the paper feeding table can be stacked and placed in order and are convenient to convey, through rotation of the conveying rollers in the U-shaped iron frame, the paper bodies can be conveyed out from top to bottom, the load of the paper bodies in the conveying process is reduced, the paper bodies are not prone to wrinkling or breaking in the conveying process, and therefore the rejection rate is reduced; the conveying roller can abut against the paper body all the time to continuously convey the paper body in cooperation with the gravity of components such as the U-shaped iron frame, the paper feeding table and the paper body can be driven to ascend and descend through stretching and retracting of the hydraulic cylinder, the paper feeding mechanism can conveniently and continuously convey the paper body into the die cutting machine, and convenience and practicability are achieved.

Description

Technical Field

[0001] This application relates to the field of die-cutting machine technology, and in particular to a paper feeding mechanism for a die-cutting machine. Background Technology

[0002] Die-cutting machines, also known as die-cutting machines, cutting machines, or CNC punching machines, use steel blades, metal molds, and steel wire (or templates carved from steel plates) to apply pressure through an imprinting plate, cutting printed materials or cardboard into specific shapes. They are essential equipment for post-printing packaging processing. The paper feeding section is a key component of the die-cutting machine, responsible for feeding raw materials (usually cardboard or paper) into the machine according to the die-cutting design requirements for cutting, die-cutting, or stamping.

[0003] Patent CN218024373U discloses "a paper feeding mechanism for a printing slotting and die-cutting machine, including a frame, a limiting plate, a conveying assembly, and a baffle. The frame includes a mounting plate, and the limiting plate consists of two pieces arranged opposite to each other, including an assembly section and a limiting section. The assembly section is equipped with an adjustment assembly for controlling the two assembly sections to move simultaneously toward each other or away from each other. The paper feeding mechanism of this invention allows paperboard to be placed directly from top to bottom within the paperboard channel formed by the limiting plate and the baffle, avoiding interference from the limiting plate when placing the paperboard, facilitating operation, and improving the working efficiency of the paper feeding mechanism."

[0004] Regarding the aforementioned technologies, the inventors believe that the friction force generated by the rotation of the drive shaft is used to transport the bottommost cardboard after stacking. However, since the overall weight of the stacked paper is concentrated on the bottommost cardboard, the cardboard is prone to wrinkles or damage during transport due to excessive load or insufficient transport force, increasing the scrap rate and thus wasting resources. Utility Model Content

[0005] To address the aforementioned problems, this application provides a paper feeding mechanism for a die-cutting machine.

[0006] The paper feeding mechanism of the die-cutting machine provided in this application adopts the following technical solution:

[0007] A paper feeding mechanism for a die-cutting machine includes a paper feeding table, paper stacked on top of the paper feeding table, a limiting mechanism installed on top of the paper feeding table for limiting the stacked paper, and a conveying mechanism installed on top of the paper feeding table for conveying the paper. The limiting mechanism includes a limiting upright plate fixedly installed at the top edge of the paper feeding table and two limiting side plates detachably installed on both sides of the limiting upright plate. The paper is movably disposed between the two matching limiting side plates and the limiting upright plate. The bottom of the paper feeding table is provided with a telescopic mechanism.

[0008] The top of the limiting plate is rotatably provided with a rotating plate, and two support plates are fixed on both sides of the top of the limiting plate for supporting and limiting the rotating plate. The conveying mechanism includes a U-shaped iron frame with a sliding bottom of the rotating plate and several conveying rollers rotatably provided in the U-shaped iron frame for conveying the uppermost paper. A drive mechanism for driving the conveying rollers to rotate is provided on one side of the U-shaped iron frame.

[0009] By adopting the above technical solution, the limiting mechanism and baffle limit the paper on the paper feeding table to be stacked neatly and convenient for transportation. The rotation of the conveying roller inside the U-shaped iron frame can transport the paper from top to bottom, reducing the load on the paper during transportation and making it less prone to wrinkling or breaking during transportation, thereby reducing the scrap rate.

[0010] Preferably, the limiting plate has several fixing holes, and the limiting side plate is threadedly fixed to the fixing holes of the limiting plate by bolts.

[0011] By adopting the above technical solution, the limiting side plate and the limiting upright plate are connected by bolts to the fixing holes at different positions. The position of the limiting side plate can be adjusted and fixed, so that the limiting side plate after the position is adjusted can cooperate with the limiting upright plate to limit paper of different lengths.

[0012] Preferably, the telescopic mechanism includes a hydraulic cylinder fixedly disposed in the middle of the bottom surface of the paper feeding table, and a base fixedly installed at the bottom of the hydraulic cylinder. The top of the base is fixedly provided with a baffle that extends through the top and out to the outside of the paper feeding table. The side of the paper away from the limiting mechanism abuts against the outer wall of the baffle.

[0013] By adopting the above technical solution, the hydraulic cylinder will extend and retract, which will drive the paper feeding table and other components to rise and fall. Through the rise and fall of the paper feeding table, in conjunction with the blocking and limiting of the fixed baffle, the paper on the paper feeding table can be transported from top to bottom in a single layer to the feed port of the die-cutting machine.

[0014] Preferably, a matching limiting rod is slidably connected inside the rotating plate, the U-shaped iron frame is fixedly connected to the bottom end of the limiting rod, the driving mechanism includes a plurality of driving shafts rotatably disposed inside the U-shaped iron frame, and a motor fixedly installed on the outer wall of the U-shaped iron frame for driving the plurality of driving shafts to rotate, and the conveying roller is fixedly connected to the outer wall of the plurality of driving shafts.

[0015] By adopting the above technical solution, after the motor runs, it will drive several drive shafts to rotate. After the drive shafts rotate, they will drive the conveyor rollers to rotate. After the conveyor rollers rotate, the uppermost paper will be rotated away and conveyed out due to friction. Furthermore, through the up and down sliding of the limit rod, combined with the gravity of the U-shaped iron frame and other components, the conveyor rollers can always be pressed against the paper to continuously convey the paper from top to bottom.

[0016] Preferably, a lifting block with a length and width larger than the limiting rod is fixed at the top of the limiting rod, and a magnet block for magnetically fixing the U-shaped iron frame after it has moved upward is fixed on one side of the rotating plate.

[0017] By adopting the above technical solution, the upward-moving U-shaped iron frame can be magnetically fixed by the magnet block, which makes it easy to fix the U-shaped iron frame before rotating the plate, thus facilitating the rotation of the plate.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. The limiting mechanism and baffle limit ensure that the paper on the feeding table is stacked neatly for easy conveying. The rotation of the conveying roller inside the U-shaped iron frame conveys the paper from top to bottom, reducing the load on the paper during conveying and making it less prone to wrinkling or breakage, thus reducing the scrap rate. The sliding of the limiting rod, combined with the gravity of the U-shaped iron frame and other components, ensures that the conveying roller always presses against the paper for continuous conveying. The extension and retraction of the hydraulic cylinder can drive the feeding table and the paper to rise and fall, facilitating the continuous conveying of the paper to the die-cutting machine. It is convenient and practical.

[0020] 2. By rotating the turntable, the U-shaped iron frame and other components can be rotated away from directly above the paper feeding table, making it easier for workers to place paper in batches onto the paper feeding table for continuous paper feeding. The support plate can support and limit the rotated turntable. By using bolts to connect the limiting side plate to the fixing holes at different positions of the limiting upright plate, the position of the limiting side plate can be adjusted and fixed. This allows the limiting side plate, after adjustment, to work with the limiting upright plate to limit paper of different lengths and specifications, making it widely applicable. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the paper feeding mechanism of a die-cutting machine according to an embodiment of this application;

[0022] Figure 2 This is a side sectional view of the overall structure of the paper feeding mechanism of a die-cutting machine according to an embodiment of this application;

[0023] Figure 3 The embodiments of this application mainly embody Figure 2 Enlarged view of the U-shaped iron frame structure;

[0024] Figure 4 This is a bottom view of the U-shaped iron frame, which is the main embodiment of this application.

[0025] Reference numerals in the attached drawings: 1. Paper feeding table; 2. Paper body; 3. Limiting upright plate; 31. Limiting side plate; 32. Baffle; 33. Fixing hole; 4. Hydraulic cylinder; 41. Base; 5. Turning plate; 51. Limiting rod; 52. Lifting block; 53. Support plate; 54. Magnet block; 6. U-shaped iron frame; 61. Conveying roller; 62. Drive shaft; 63. Motor. Detailed Implementation

[0026] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0027] This application discloses a paper feeding mechanism for a die-cutting machine.

[0028] A paper feeding mechanism for a die-cutting machine, as described in the following example. Figure 1-2 It includes a paper feeding table 1, paper body 2, a limiting mechanism and a conveying mechanism. The paper body 2 is stacked on top of the paper feeding table 1. The paper body 2 can be paper or cardboard.

[0029] Reference Figure 1-2 The limiting mechanism includes a limiting upright plate 3 fixedly installed at the top edge of the paper feeding table 1, and two limiting side plates 31 detachably installed on both sides of the limiting upright plate 3. The paper body 2 is movably installed between the two matching limiting side plates 31 and the limiting upright plate 3. The limiting upright plate 3 and the two limiting side plates 31 can limit the matching paper body 2, so that the paper body 2 on the paper feeding table 1 can be stacked neatly and convenient for subsequent transportation.

[0030] Reference Figure 1-2 The limiting plate 3 has several fixing holes 33. The limiting side plate 31 is fixed to the limiting plate 3 by bolts through the fixing holes 33. One end of the bolt can be connected to the fixing hole 33 of the limiting plate 3, thereby connecting and fixing the limiting plate 3 and the limiting side plate 31. By using bolts to connect the limiting side plate 31 to the fixing holes 33 at different positions of the limiting plate 3, the position of the limiting side plate 31 can be adjusted and fixed, so that the limiting side plate 31 after adjustment can cooperate with the limiting plate 3 to limit paper bodies 2 of different lengths.

[0031] Reference Figure 1-2 The bottom of the paper feeding table 1 is equipped with a telescopic mechanism, which includes a hydraulic cylinder 4 fixedly installed in the middle of the bottom surface of the paper feeding table 1 and a base 41 fixedly installed at the bottom of the hydraulic cylinder 4. The base 41 can support the paper feeding table 1 and other components. After the hydraulic cylinder 4 extends and retracts, it will drive the paper feeding table 1 and other components to rise and fall.

[0032] Reference Figure 1-2The base 41 is fixedly provided with a baffle 32 that extends through the top and outwards to the outside of the paper feeding table 1. The side of the paper body 2 away from the limiting mechanism abuts against the outer wall of the baffle 32, so that the baffle 32 can limit the stacked paper bodies 2 on the paper feeding table 1. When the top layer of paper body 2 is conveyed, the lower layer of paper body 2 cannot be conveyed out together with the top layer of paper body 2 due to the obstruction of the baffle 32, thus ensuring the single-layer conveying of the paper body 2. Moreover, through the lifting and lowering of the paper feeding table 1, in conjunction with the obstruction and limiting of the fixed baffle 32, the paper body 2 on the paper feeding table 1 can be conveyed from top to bottom in a single layer to the feed port of the die-cutting machine.

[0033] Reference Figure 1-2 The top of the limiting plate 3 is equipped with a rotating plate 5. Two support plates 53 are fixed on both sides of the top of the limiting plate 3 to support and limit the rotating plate 5. Under the limitation of the two support plates 53, the rotating plate 5 can rotate 180 degrees on the limiting column 3, so that the rotating plate 5 and other components can be rotated away from the paper feeding table 1, making it convenient for the staff to place the paper 2 in batches on the paper feeding table 1. The support plates 53 can support the rotating plate 5 after rotation.

[0034] Reference Figure 1-3 The conveying mechanism includes a U-shaped iron frame 6 slidably mounted on the bottom of the rotating plate 5, and several conveying rollers 61 rotatably mounted inside the U-shaped iron frame 6 for conveying the uppermost paper 2. A matching limiting rod 51 is slidably connected inside the rotating plate 5. The U-shaped iron frame 6 is fixedly connected to the bottom end of the limiting rod 51. A lifting block 52 with a length and width larger than the limiting rod 51 is fixedly mounted on the top end of the limiting rod 51. The limiting rod 51 can connect the rotating plate 5 and the U-shaped iron frame 6, and the lifting block 52 can limit the limiting rod 51 so that the limiting rod 51 will not detach from the rotating plate 5.

[0035] Reference Figure 2-4 A drive mechanism for driving the conveyor roller 61 to rotate is provided on one side of the U-shaped iron frame 6. The drive mechanism includes a number of drive shafts 62 rotatably disposed inside the U-shaped iron frame 6 and a motor 63 fixedly installed on the outer wall of the U-shaped iron frame 6 for driving the number of drive shafts 62 to rotate. The conveyor roller 61 is fixedly connected to the outer wall of the number of drive shafts 62. The motor 63 can drive the number of drive shafts 62 to rotate together through a transmission method such as belts and pulleys. The transmission method such as belts and pulleys is a public technology and will not be described in detail here.

[0036] After the motor 63 starts running, it will drive several drive shafts 62 to rotate. After the drive shafts 62 rotate, they will drive the conveyor rollers 61 to rotate. After the conveyor rollers 61 rotate, they will rotate the uppermost paper 2 away from the paper due to friction and convey it out. Through the up and down sliding of the limit rod 51, combined with the gravity of the U-shaped iron frame 6 and other components, the conveyor rollers 61 can always press against the paper 2 to continuously convey the paper 2 from top to bottom.

[0037] Reference Figure 1-2 A magnet block 54 is fixed on one side of the rotating plate 5 to magnetically fix the U-shaped iron frame 6 after it has moved up. The magnet block 54 can magnetically fix the U-shaped iron frame 6 after it has moved up, which makes it easy to fix the U-shaped iron frame 6 before rotating the rotating plate 5, thus making it easier for the rotating plate 5 to rotate.

[0038] The implementation principle of the paper feeding mechanism of a die-cutting machine according to an embodiment of this application is as follows:

[0039] When in use, the staff can lift the U-shaped iron frame 6 and other components upwards using the lifting block 52. At this time, the magnet block 54 can magnetically attract and fix the upward-moving U-shaped iron frame 6. Then, rotate the rotating plate 5 to rotate the U-shaped iron frame 6 and other components away from the top of the paper feeding table 1. Then, the paper body 2 is placed in batches on the paper feeding table 1 and the paper body 2 is placed between the matching limiting mechanism and the baffle 32.

[0040] Then rotate the plate 5 in the opposite direction and press down the lifting block 52 so that the conveying roller 61 at the bottom of the U-shaped iron frame 6 can abut against the stacked paper 2. Then turn on the motor 63. After the motor 63 runs, it will drive several drive shafts 62 to rotate. After the drive shafts 62 rotate, they will drive the conveying roller 61 to rotate. After the conveying roller 61 rotates, it will rotate the topmost paper 2 away from the friction and convey it out.

[0041] Simultaneously, the hydraulic cylinder 4 is controlled to extend and retract, thereby driving the paper feeding table 1 and other components to rise and fall. Through the up and down sliding of the limit rod 51, combined with the gravity of the U-shaped iron frame 6 and other components, the conveying roller 61 can always press against the paper body 2 to continuously convey the paper body 2. Furthermore, through the rise and fall of the paper feeding table 1, combined with the blocking and limiting of the fixed baffle 32, the paper body 2 on the paper feeding table 1 can be conveyed from top to bottom in a single layer to the feed port of the die-cutting machine, thereby feeding the paper.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A paper feeding mechanism for a die-cutting machine, comprising a paper feeding table (1), paper bodies (2) stacked on top of the paper feeding table (1), a limiting mechanism installed on top of the paper feeding table (1) for limiting the stacked paper bodies (2), and a conveying mechanism installed on top of the paper feeding table (1) for conveying the paper body (2), characterized in that: The limiting mechanism includes a limiting plate (3) fixedly installed at the top edge of the paper feeding table (1) and two limiting side plates (31) detachably installed on both sides of the limiting plate (3). The paper (2) is movably installed between the two matching limiting side plates (31) and the limiting plate (3). The bottom of the paper feeding table (1) is provided with a telescopic mechanism. The top of the limiting plate (3) is rotatably provided with a rotating plate (5). Two support plates (53) are fixed on both sides of the top of the limiting plate (3) for supporting and limiting the rotating plate (5). The conveying mechanism includes a U-shaped iron frame (6) with the bottom of the rotating plate (5) slidably provided, and a number of conveying rollers (61) rotatably provided in the U-shaped iron frame (6) for conveying the uppermost paper (2). A driving mechanism for driving the conveying rollers (61) to rotate is provided on one side of the U-shaped iron frame (6).

2. The paper feeding mechanism of a die-cutting machine according to claim 1, characterized in that: The limiting plate (3) has several fixing holes (33) inside, and the limiting side plate (31) is threadedly fixed to the fixing holes (33) of the limiting plate (3) by bolts.

3. The paper feeding mechanism of a die-cutting machine according to claim 1, characterized in that: The telescopic mechanism includes a hydraulic cylinder (4) fixedly installed in the middle of the bottom surface of the paper feeding table (1) and a base (41) fixedly installed at the bottom of the hydraulic cylinder (4).

4. The paper feeding mechanism of a die-cutting machine according to claim 3, characterized in that: The base (41) is fixedly provided with a baffle (32) whose top end extends through and to the outside of the paper feeding table (1), and the side of the paper (2) away from the limiting mechanism abuts against the outer wall of the baffle (32).

5. The paper feeding mechanism of a die-cutting machine according to claim 1, characterized in that: The rotating plate (5) is slidably connected to a matching limiting rod (51), and the U-shaped iron frame (6) is fixedly connected to the bottom end of the limiting rod (51).

6. The paper feeding mechanism of a die-cutting machine according to claim 5, characterized in that: The driving mechanism includes a plurality of drive shafts (62) rotatably disposed within the U-shaped iron frame (6), and a motor (63) fixedly installed on the outer wall of the U-shaped iron frame (6) for driving the plurality of drive shafts (62) to rotate. The conveying roller (61) is fixedly connected to the outer wall of the plurality of drive shafts (62).

7. The paper feeding mechanism of a die-cutting machine according to claim 6, characterized in that: The top of the limiting rod (51) is fixed with a lifting block (52) whose length and width are larger than those of the limiting rod (51).

8. The paper feeding mechanism of a die-cutting machine according to claim 7, characterized in that: A magnet block (54) is fixed on one side of the rotating plate (5) for magnetically fixing the U-shaped iron frame (6) after it has moved up.

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