Die cutting device capable of adjusting die cutting distance

Abstract

The utility model provides a die cutting device capable of adjusting the die cutting distance, and belongs to the technical field of die cutting of packaging printed matters, the die cutting device comprises two die cutting rollers (1), two adjusting mechanisms (2) and a rack (6), the die cutting rollers (1) are eccentrically connected to the adjusting mechanisms (2), and the adjusting mechanisms (2) are connected to the rack (6); each die cutting roller (1) and each adjusting mechanism (2) are connected with independent driving mechanisms for driving the die cutting rollers (1) and the adjusting mechanisms (2) to rotate; a die-cutting knife (3) is arranged on the die-cutting roller (1), a plurality of vent holes (4) are formed in the die-cutting roller (1) around the die-cutting knife (3), and a gas channel communicated with the vent holes (4) is arranged in the die-cutting roller (1); the interior of the die cutting roller (1) is hollow, and the vent holes (4) are communicated with the hollow part in the die cutting roller (1); the hollow part in the die cutting roller (1) is communicated with an air supply device; the die cutting distance can be adjusted conveniently, die cutting waste can be removed during die cutting, continuous production is achieved, and production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of die-cutting of packaged printed products, and in particular relates to a die-cutting device capable of adjusting the die-cutting interval. Background Art

[0002] Die-cutting machines are commonly used for cutting and punching paper, plastic products, etc., and producing products such as labels, stickers, and packaging boxes. In order to realize the automated production of die-cutting machines, automatic feeding mechanisms are often used in conjunction with plate-type die-cutting machines. The equipment structure is complex, and the die-cutting spacing can only be adjusted through the automatic feeding mechanism, which limits the adjustment of the die-cutting spacing.

[0003] The Chinese utility model patent with publication number CN218084394U discloses a die-cutting roller for carton processing, including a base, a fixed plate is provided on the left side of the upper end surface of the base, a movable plate is detachably provided on the right end surface of the base, a driving shaft is rotatably provided on the fixed plate, a first fixed shaft is rotatably provided on the movable plate corresponding to the driving shaft, a through groove is provided on both the fixed plate and the movable plate, a movable block is slidably provided in the through groove, a first locking hole is provided on the inner wall of the front end of the through groove, a second locking hole is provided on the movable block corresponding to the first locking hole, a plurality of second locking holes are evenly arranged at intervals, the first locking hole and the second locking hole are connected by bolts, a driven shaft is rotatably provided on the left movable block, a second fixed shaft is rotatably provided on the right movable block corresponding to the driven shaft, a die guide roller is detachably provided between the driving shaft and the first fixed shaft, and a die cutting roller is detachably provided between the driven shaft and the second fixed shaft; the design of the movable block is convenient for adjusting the spacing; the design of the movable plate is convenient for replacement; the design of the tightening wheel ensures stable transmission.

[0004] Although the above device can also adjust the die-cutting spacing, the operation is complicated, resulting in low work efficiency; and the above die-cutting roller cannot promptly remove the die-cutting waste adhered to the die-cutting knife during the die-cutting process. When too much waste adheres, the machine has to be stopped for cleaning, which also reduces work efficiency. Summary of the invention

[0005] The purpose of the utility model is to solve the problems mentioned in the background technology and to provide a die-cutting device with adjustable die-cutting spacing, which is convenient for adjusting the die-cutting spacing and can remove die-cutting waste during die-cutting, thereby realizing continuous production and improving production efficiency.

[0006] In order to achieve the above technical purpose, the technical solution adopted by the utility model is:

[0007] A die-cutting device with adjustable die-cutting spacing comprises two die-cutting rollers, two adjusting mechanisms and a frame, wherein the die-cutting rollers are eccentrically connected to the adjusting mechanisms, and the adjusting mechanisms are connected to the frame; each die-cutting roller and the adjusting mechanism are connected to an independent driving mechanism for driving the rotation thereof; the die-cutting rollers are provided with a die-cutting knife, the die-cutting rollers are provided with a plurality of vents around the die-cutting knife, and a gas channel connected to the vents is provided inside the die-cutting rollers.

[0008] Preferably, the die-cutting roller is hollow inside, and the vent is connected to the hollow part inside the die-cutting roller; the hollow part inside the die-cutting roller is connected to the air supply device.

[0009] Preferably, the adjustment mechanism comprises two turntables with a connecting shaft provided between the two turntables; the two turntables are rotatably connected to the frame; a die-cutting roller is eccentrically connected between the two turntables of the same adjustment mechanism; the two turntables of the same adjustment mechanism are coaxially arranged, the axes of the turntables of different adjustment mechanisms are parallel to each other, and the axis of the die-cutting roller is parallel to the axis of the turntable.

[0010] Preferably, the driving mechanism connected to the adjusting mechanism comprises a motor 1, the output shaft of the motor 1 is coaxially connected to any turntable in the same adjusting mechanism, and the motor 1 is arranged on the frame.

[0011] Preferably, the adjustment mechanism is provided with a plurality of limiting mechanisms matching therewith, the limiting mechanisms comprising a limiting pin and a telescopic device, the telescopic device being arranged on a frame, and the limiting pin being connected to the telescopic end of the telescopic device; the surface of the turntable opposite to the limiting pin is provided with a plurality of grooves matching the limiting pin.

[0012] Preferably, the telescopic device is a cylinder or an electric telescopic rod.

[0013] Preferably, the driving mechanism connected to the die-cutting roller comprises a second motor, which is transmission-connected to the die-cutting roller and is disposed on a turntable.

[0014] Preferably, the motor 2 is arranged on the inner side of the turntable, and the output shaft of the motor 2 passes through the turntable and is connected to the gear 1; one end of the die-cutting roller passes through the turntable and is connected to the gear 2, and the gear 1 and the gear 2 are meshed with each other.

[0015] Preferably, one end of the die-cutting roller passes through the adjustment mechanism, and the frame is provided with an arc groove matching the end of the die-cutting roller, and the end of the die-cutting roller is slidably connected in the arc groove, and the arc groove is coaxially arranged with the turntable.

[0016] Preferably, the two adjustment mechanisms are arranged at intervals.

[0017] The beneficial effects of the utility model are:

[0018] The die-cutting roller is eccentrically connected to the adjusting mechanism. By rotating the adjusting mechanism to drive the die-cutting roller to rotate eccentrically, the distance between the two die-cutting rollers can be quickly adjusted, thereby realizing rapid adjustment of the die-cutting spacing. There is no need to manually adjust the distance between the two die-cutting rollers, thereby improving production efficiency.

[0019] The die-cutting roller is provided with a plurality of ventilation holes around the die-cutting knife and is provided with a gas channel connected to the ventilation holes inside. An air supply device such as an air pump can be connected to the outside of the die-cutting roller to blow air outward through the ventilation holes, thereby blowing away the die-cutting waste adhered to the die-cutting knife to prevent it from adhering to the die-cutting knife and the die-cutting roller. This process can be carried out simultaneously during the die-cutting process, avoiding the die-cutting waste from continuously adhering to the die-cutting knife or the die-cutting roller and affecting the normal operation of the device. There is no need to stop the machine to clean the waste, and continuous die-cutting production can be achieved, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a front view of the device;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the device;

[0022] Figure 3 It is a structural schematic diagram of the die-cutting roller.

[0023] Label names in the figure:

[0024] 1. Die-cutting roller, 2. Adjustment mechanism, 3. Die-cutting knife, 4. Vent, 5. Turntable, 6. Frame, 7. Motor 1, 8. Limit pin, 9. Telescopic device, 10. Connecting shaft, 11. Motor 2, 12. Gear 1, 13. Gear 2, 14. Arc groove. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings.

[0026] It should be noted that the terms such as "upper", "lower", "left", "right", "front", "back", etc. used in the utility model are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present utility model without substantially changing the technical content.

[0027] like Figure 1-3As shown, the present application provides a die-cutting device with adjustable die-cutting spacing, including two die-cutting rollers 1, two adjustment mechanisms 2 and a frame 6, the die-cutting roller 1 is eccentrically connected to the adjustment mechanism 2, and the adjustment mechanism 2 is connected to the frame 6; each die-cutting roller 1 and the adjustment mechanism 2 are connected to an independent driving mechanism for driving them to rotate; the die-cutting roller 1 is provided with a die-cutting knife 3, the die-cutting roller 1 is provided with a plurality of ventilation holes 4 around the die-cutting knife 3, and the die-cutting roller 1 is provided with a gas channel connected to the ventilation holes 4; in this embodiment, the die-cutting knife 3 is a rectangular ring (it can be set to other shapes according to actual needs), and the ventilation holes 4 are set in the inner periphery of the die-cutting knife 3, but the ventilation holes 4 can also be set on both the outer periphery and the inner periphery of the die-cutting knife 3, or only on the outer periphery, according to actual needs.

[0028] The interior of the die-cutting roller 1 is hollow, and the vent hole 4 is connected to the hollow part inside the die-cutting roller 1; the hollow part inside the die-cutting roller 1 is connected to an air supply device, and the air supply device can be a device such as an air pump. The air supply device continuously supplies air to the vent hole 4, so that the vent hole 4 sprays air outward, thereby blowing away the waste material adhering to the die-cutting knife 3 or the die-cutting roller 1 in time to prevent it from sticking; it should be noted that the interior of the die-cutting roller 1 does not have to be set to be hollow, as long as a gas channel connected to the vent hole 4 is provided.

[0029] The adjusting mechanism comprises two turntables 5, between which a connecting shaft 10 is arranged. In the present embodiment, the two turntables 5 have the same diameter, but they may also be different, preferably the same. The connecting shaft 10 and the turntable 5 may be coaxially connected or not coaxially connected. The two turntables 5 are rotatably connected to the frame 6. A die-cutting roller 1 is eccentrically connected between the two turntables 5 of the same adjusting mechanism, that is, only one die-cutting roller 1 is connected to each of the two adjusting mechanisms. The two turntables 5 of the same adjusting mechanism are coaxially arranged, and the axes of the turntables 5 of different adjusting mechanisms are parallel to each other, and the axis of the die-cutting roller 1 is parallel to the axis of the turntable 5.

[0030] Preferably, the projections of the edges of the turntables 5 of different adjusting mechanisms in the vertical plane (to be precise, the projections in the plane perpendicular to the axis of the turntable 5, which is the vertical plane in the present embodiment) do not overlap with each other to prevent the turntables 5 from interfering with each other's rotation; of course, the projections of the edges of the turntables 5 of different adjusting mechanisms in the vertical plane may also overlap, but in this case, the two turntables 5 of one adjusting mechanism must be located on the inner side of the turntable 5 of the other adjusting mechanism.

[0031] The driving mechanism connected to the adjusting mechanism includes a motor 7, the output shaft of the motor 7 is coaxially connected to any turntable 5 in the same adjusting mechanism, and the motor 7 is arranged on the frame 6. In this embodiment, the motor 7 is arranged on the outside of the frame 6, and the adjusting mechanism is arranged on the inside of the frame 6.

[0032] The adjusting mechanism is provided with a plurality of limiting mechanisms matching therewith, and the limiting mechanisms include a limiting pin 8 and a telescopic device 9, and the telescopic device 9 is a telescopic device such as a cylinder or an electric telescopic rod. The telescopic device 9 is arranged on the frame 6, and the limiting pin 8 is connected to the telescopic end of the telescopic device 9. In this embodiment, the telescopic device 9 is arranged on the outside of the frame 6, and its telescopic end penetrates the frame 6 and is connected with the limiting pin 8; the surface of the turntable 5 opposite to the limiting pin 8 is provided with a plurality of grooves matching the limiting pin 8.

[0033] When the turntable 5 needs to be rotated, the telescopic device 9 is controlled to retract the limit pin 8 to disengage it from the groove on the surface of the turntable 5, and then the motor 7 is driven to realize the rotation of the turntable 5; when it is rotated to a suitable angle, the telescopic device 9 is controlled to extend the limit pin 8 to engage it in the groove on the surface of the turntable 5 to limit the turntable 5 from rotating further; the setting of the limit mechanism makes the entire device more stable and reliable.

[0034] The driving mechanism connected to the die-cutting roller 1 includes a second motor 11 , which is transmission-connected to the die-cutting roller 1 and is disposed on the turntable 5 .

[0035] In this embodiment, the motor 2 11 is arranged on the inner side of the turntable 5, and the output shaft of the motor 2 11 passes through the turntable 5 and is connected to the gear 12; the left end (or the right end, according to the actual situation) of the die-cutting roller 1 passes through the turntable 5 and is connected to the gear 2 13, and the gear 12 and the gear 2 13 are meshed with each other; the two gears are driven to rotate by the motor 2 11, thereby driving the die-cutting roller 1 to rotate; such an arrangement can reduce the lateral size of the entire device, of course, it is also possible not to do so, and the motor 2 11 can be directly arranged on the outside of the turntable 5, and the output shaft of the motor 2 11 passes through the turntable 5 and is coaxially connected to the die-cutting roller 1, but this will increase the overall lateral size of the device.

[0036] The left end of the die-cutting roller 1 (that is, the end that passes through the turntable 5) also passes through the frame 6, and the frame 6 is provided with an arc groove 14 that matches the left end of the die-cutting roller 1. The left end of the die-cutting roller 1 is slidably connected in the arc groove 14. The arc groove 14 is coaxially arranged with the turntable 5, that is, the centers of the two are on the same straight line, so that the left end of the die-cutting roller 1 can slide normally in the arc groove 14.

[0037] The arc groove 14 can limit the rotation angle of the turntable 5 , and the air supply device can also be arranged on the outside of the frame 6 to communicate with the air channel in the left end of the die-cutting roller 1 .

[0038] Please note that Figure 1 and 2Only one arc groove 14 is shown and only one left end of the die-cutting roller 1 extends through the frame 6. In fact, two arc grooves 14 can be set, and both ends of the die-cutting rollers 1 (which can be the same end or different ends) extend through the outside of the frame 6, or both ends of the die-cutting rollers 1 extend through the outside of the frame 6, and matching arc grooves 14 can be set.

[0039] The working principle of a die-cutting device with adjustable die-cutting spacing provided in the present application is as follows:

[0040] Under normal circumstances, the die-cutting roller 1 is driven to rotate by the motor 2 11 to perform die-cutting, and the air supply device is used to make the vent hole 4 spray air outward to clean the die-cutting waste; and the limit pin 8 is inserted into the groove on the surface of the turntable 5.

[0041] When the die-cutting spacing needs to be adjusted, the limit pin 8 is retracted through the telescopic device 9 to disengage it from the groove on the surface of the turntable 5, and then the motor 1 7 connected to the two adjustment mechanisms is driven to rotate the respective turntables 5, thereby driving the two die-cutting rollers 1 to rotate eccentrically, so that the distance between the two is closer or farther. When the two die-cutting rollers 1 are adjusted to a suitable spacing, the rotation of the motor 1 7 is stopped, and then the telescopic device 9 is controlled to make the limit pin 8 inserted into the groove on the surface of the turntable 5 to prevent the turntable 5 from rotating again; then the motor 2 11 is driven to rotate to perform die cutting.

[0042] It should be noted that after the die-cutting spacing is adjusted by eccentric rotation, even if the relative positions of the die-cutting blades 3 on the two die-cutting rollers 1 are offset, the motor 2 11 can be used to drive the die-cutting rollers 1 to rotate and restore them to their original states.

[0043] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the utility model.

Claims

1. A die-cutting device with adjustable die-cutting spacing, characterized in that: The invention comprises two die-cutting rollers (1), two adjustment mechanisms (2) and a frame (6); the die-cutting roller (1) is eccentrically connected to the adjustment mechanism (2), and the adjustment mechanism (2) is connected to the frame (6); each die-cutting roller (1) and the adjustment mechanism (2) are connected to an independent driving mechanism for driving the same to rotate; the die-cutting roller (1) is provided with a die-cutting knife (3), the die-cutting roller (1) is provided with a plurality of ventilation holes (4) around the die-cutting knife (3), and the die-cutting roller (1) is provided with a gas passage in communication with the ventilation holes (4).

2. A die-cutting device with adjustable die-cutting spacing according to claim 1, characterized in that: The die-cutting roller (1) is hollow inside, and the vent hole (4) is connected to the hollow part inside the die-cutting roller (1); the hollow part inside the die-cutting roller (1) is connected to the air supply device.

3. A die-cutting device with adjustable die-cutting spacing according to claim 1, characterized in that: The adjustment mechanism (2) comprises two turntables (5), a connecting shaft (10) being provided between the two turntables (5); the two turntables (5) are rotatably connected to a frame (6); a die-cutting roller (1) is eccentrically connected between the two turntables (5) of the same adjustment mechanism (2); the two turntables (5) of the same adjustment mechanism (2) are coaxially arranged, the axes of the turntables (5) of different adjustment mechanisms (2) are parallel to each other, and the axis of the die-cutting roller (1) is parallel to the axis of the turntable (5).

4. A die-cutting device with adjustable die-cutting spacing according to claim 3, characterized in that: The driving mechanism connected to the adjusting mechanism (2) comprises a motor 1 (7), the output shaft of the motor 1 (7) being coaxially connected to any turntable (5) in the same adjusting mechanism (2), and the motor 1 (7) being arranged on a frame (6).

5. A die-cutting device with adjustable die-cutting spacing according to claim 3, characterized in that: The adjusting mechanism (2) is provided with a plurality of limiting mechanisms matching therewith, the limiting mechanisms comprising a limiting pin (8) and a telescopic device (9), the telescopic device (9) being arranged on the frame (6), the limiting pin (8) being connected to the telescopic end of the telescopic device (9); and a plurality of grooves matching the limiting pins (8) are provided on the surface of the rotating disk (5) opposite to the limiting pins (8).

6. A die-cutting device with adjustable die-cutting spacing according to claim 5, characterized in that: The telescopic device (9) is a cylinder or an electric telescopic rod.

7. A die-cutting device with adjustable die-cutting spacing according to claim 3, characterized in that: The driving mechanism connected to the die-cutting roller (1) comprises a second motor (11), the second motor (11) being in driving connection with the die-cutting roller (1), and the second motor (11) being arranged on the turntable (5).

8. A die-cutting device with adjustable die-cutting spacing according to claim 7, characterized in that: The second motor (11) is arranged inside the turntable (5), and the output shaft of the second motor (11) passes through the turntable (5) and is connected to the first gear (12); one end of the die-cutting roller (1) passes through the turntable (5) and is connected to the second gear (13), and the first gear (12) and the second gear (13) are meshed with each other.

9. A die-cutting device with adjustable die-cutting spacing according to claim 1, characterized in that: One end of the die-cutting roller (1) passes through the adjustment mechanism (2), and an arc groove (14) matching the end of the die-cutting roller (1) is provided on the frame (6), and the end of the die-cutting roller (1) is slidably connected in the arc groove (14); the arc groove (14) is coaxially arranged with the turntable (5).

10. The die-cutting device with adjustable die-cutting spacing according to claim 1, characterized in that: The two adjustment mechanisms (2) are arranged at intervals.

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