CN219726421U - Die cutting transmission mechanism and die cutting equipment - Google Patents

Abstract

The utility model discloses a die cutting transmission mechanism and die cutting equipment, which both comprise: the main shaft is used for being rotatably arranged on the lower die holder, and eccentric shafts which are offset relative to the axes of the main shaft are arranged at two ends of the main shaft; the lower end of the first rod body is rotationally connected with the eccentric shaft, the upper end of the first rod body is rotationally connected with the second rod body, and the upper end of the second rod body is connected with the upper die holder; the lifting guide mechanism is arranged on the lower die holder and used for guiding the second rod body to move up and down relative to the lower die holder so as to drive the upper die holder to reciprocate up and down. When the main shaft rotates, the eccentric shaft drives the first rod body to do plane swing, the lifting guide mechanism prevents the second rod body from doing plane swing along with the first rod body and only doing lifting motion, so that when the eccentric shaft is positioned at the highest point or the lowest point, the upper end of the second rod body does not swing or has smaller swing amplitude, the rubbing condition of the upper die holder during die cutting is improved, the rubbing probability of a cutter is reduced, burrs after die cutting are improved or eliminated, the product quality is improved, and the service life of the cutter is prolonged.

Description

Die cutting transmission mechanism and die cutting equipment

Technical Field

The utility model relates to the technical field of die cutting processing, in particular to a die cutting transmission mechanism and die cutting equipment.

Background

At present, a general die cutting machine has the following working principle: the motor drives the main shaft to rotate, the two ends of the main shaft are both provided with eccentric shafts, a connecting rod is rotationally connected to the eccentric shafts, the other end of the connecting rod is rotationally connected with the upper die holder, and the upper die holder can only reciprocate under the action of the guide post. And a crank connecting rod sliding block mechanism is formed among the eccentric shaft, the connecting rod and the upper die holder, and the eccentric shaft can drive the upper die holder to rapidly reciprocate to move close to or away from the lower die holder by rotating, so that the shape of a product is die-cut.

However, over time, during actual use, it was found that: even if the parallelism between the upper die base and the lower die base is adjusted to the optimal state, the problems of burrs of the die-cut product, reduced service life of the cutter and the like can occur. The reason is that the upper die holder can generate displacement of about +/-0.15 mm along the front-back direction when the eccentric shaft rotates to the highest point and the lowest point, so that the cutting die is rubbed at the moment of cutting the film, and the die-cut product has burrs and the die-cut cutter is rubbed.

Disclosure of Invention

The utility model aims at solving at least one of the technical problems in the prior art, and therefore, one of the purposes of the utility model is to provide a die cutting transmission mechanism for improving die cutting burrs so as to improve the product quality and prolong the service life of a die cutting tool; and secondly, providing a die cutting device adopting the die cutting transmission mechanism.

According to an embodiment of the first aspect of the present utility model, a die cutting transmission mechanism comprises: the main shaft is used for being rotatably arranged on the lower die holder, and eccentric shafts which are offset relative to the axes of the main shaft are arranged at two ends of the main shaft; the lower end of the first rod body is rotationally connected with the eccentric shaft, the upper end of the first rod body is rotationally connected with the second rod body, and the upper end of the second rod body is connected with the upper die holder; the lifting guide mechanism is arranged on the lower die holder and used for guiding the second rod body to move up and down relative to the lower die holder so as to drive the upper die holder to move up and down in a reciprocating manner.

The die cutting transmission mechanism provided by the embodiment of the utility model has at least the following beneficial effects:

when the main shaft rotates, the eccentric shaft drives the first rod body to swing in a plane, the second rod body also has a trend of swinging in a plane along with the first rod body, the lifting guide mechanism limits the second rod body to move up and down only, and the horizontal component force of the first rod body acting on the second rod body is eliminated or greatly reduced, so that when the main shaft rotates to the position that the eccentric shaft is at the highest point or the lowest point, the upper end of the second rod body does not swing or has smaller swing, thereby improving the rubbing condition of the upper die holder during die cutting, reducing the probability of cutter rubbing, improving or eliminating burrs after die cutting, improving the product quality and prolonging the service life of cutters.

In some embodiments of the present utility model, the first rod body includes a first arm plate rotatably connected to the eccentric shaft, two side walls of the first arm plate are respectively provided with a first clamping plate, a first pivot is arranged between the two first clamping plates in a penetrating manner, the lower end of the second rod body is rotatably arranged on the first pivot, the second rod body is in a strip shape, and the thickness of the second rod body is adapted to the distance between the two first clamping plates.

In some embodiments of the present utility model, the lifting guide mechanism includes a guide bar disposed on a side portion of the second rod body and extending in an up-down direction, and two opposite vertical side walls of the guide bar are abutted against at least one guide roller, where the guide roller is disposed on the lower die holder in a rotating manner.

In some embodiments of the present utility model, the guide bar is provided with a plurality of first mounting holes at intervals along a length direction thereof, the second rod body is provided with second mounting holes corresponding to the first mounting holes one by one, and the bolt assembly is arranged through the first mounting holes and the corresponding second mounting holes so that the guide bar can be detachably mounted on the second rod body.

In some embodiments of the present utility model, the present utility model further comprises a mounting plate, wherein two rows of roller assemblies are arranged at intervals along a horizontal direction, each row of roller assemblies is configured with at least two guide rollers which are distributed at intervals along an up-down direction, the guide bar is slidably arranged between the two rows of roller assemblies, the mounting plate is provided with a plurality of waist-shaped mounting holes, and a length direction of each waist-shaped mounting hole extends along the horizontal direction.

In some embodiments of the present utility model, a third rod is rotatably connected between the upper end of the second rod and the upper die holder, and an adjusting mechanism is disposed at a connection position between the third rod and the upper die holder, and the adjusting mechanism is used for adjusting an initial position of the upper die holder relative to the lower die holder.

In some embodiments of the present utility model, the adjusting mechanism includes a connecting shaft rotatably disposed on the upper die holder, the connecting shaft is provided with an eccentric member biased with an axis thereof, the eccentric member is connected with the third rod body, the connecting shaft is connected with a rotation driving device, and the rotation driving device drives the connecting shaft to rotate so that the eccentric member drives the third rod body to swing relative to the second rod body, thereby adjusting an initial position of the upper die holder relative to the lower die holder.

In some embodiments of the present utility model, the third rod includes a second arm plate rotatably connected to the upper die holder, two side walls of the second arm plate are respectively provided with a second clamping plate, a second pivot is arranged between the two second clamping plates in a penetrating manner, the upper end of the second rod is rotatably arranged on the second pivot, the second rod is in a strip shape, and the thickness of the second rod is adapted to the interval between the two second clamping plates.

According to a second aspect of the present utility model, a die cutting device comprises the die cutting transmission mechanism of any one of the above technical schemes; the die cutting equipment can solve the problem that the upper die holder is rubbed during die cutting, reduce the probability of rubbing the cutter, improve or eliminate burrs after die cutting, improve the product quality and prolong the service life of the cutter.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of one embodiment of a die cut drive mechanism of the present utility model;

FIG. 2 is an exploded view of the embodiment of FIG. 1;

FIG. 3 is a schematic view of an embodiment of a die cutting apparatus of the present utility model;

fig. 4 is a schematic diagram of a structure in which the adjusting mechanism adjusts the initial position of the upper die holder in a front-rear state.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 3, a die cutting transmission mechanism of the present utility model includes: a main shaft 100, which is rotatably arranged on the lower die holder 10, wherein two ends of the main shaft 100 are provided with eccentric shafts 110 which are offset relative to the axis of the main shaft; the lower end of the first rod body 200 is rotatably connected with the eccentric shaft 110, the upper end of the first rod body 200 is rotatably connected with the second rod body 300, and the upper end of the second rod body 300 is connected with the upper die holder 20; the lifting guide mechanism 400 is disposed on the lower die holder 10, and is used for guiding the second rod 300 to move up and down relative to the lower die holder 10 so as to drive the upper die holder 20 to reciprocate up and down.

When the main shaft 100 rotates, the eccentric shaft 110 drives the first rod body 200 to swing in a plane, the second rod body 300 also has a trend of swinging along the first rod body 200 in a plane, the lifting guide mechanism 400 limits the second rod body 300 to only move up and down, horizontal component force of the first rod body 200 acting on the second rod body 300 is eliminated or greatly reduced, so that when the main shaft 100 rotates to the highest point or the lowest point of the eccentric shaft 110, the upper end of the second rod body 300 does not swing or swings less, the upper die holder 20 keeps moving vertically downwards to be close to the lower die holder 10 when in a die cutting position to drive, the rubbing condition of the upper die holder 20 when in die cutting is improved, the possibility of rubbing a cutter is reduced, burrs after die cutting are improved or eliminated, the product quality is improved, and the service life of the cutter is prolonged.

Referring to fig. 1 and 2, in some embodiments of the present utility model, the first rod 200 includes a first arm plate 210 rotatably connected to the eccentric shaft 110, two side walls of the first arm plate 210 are respectively provided with a first clamping plate 220, a first pivot 230 is disposed between the two first clamping plates 220 in a penetrating manner, a lower end of the second rod 300 is rotatably disposed at the first pivot 230, the second rod 300 has a strip shape, and a thickness of the second rod 300 is adapted to a space between the two first clamping plates 220. It can be understood that when the spindle 100 drives the eccentric shaft 110 to rotate together, the second rod 300 is limited by the lifting guide mechanism 400 to move up and down, so that the first rod 200 rotates relative to the second rod 300, the second rod 300 in a strip shape is still located between the two first clamping plates 220 after being deflected relative to the first arm plate 210, the second rod 300 is prevented from moving along the length direction of the spindle 100 relative to the first rod 200, the stability and certainty of transmission between the first rod 200 and the second rod 300 are ensured, abnormal noise and noise are avoided, and the service life of the die cutting transmission mechanism is prolonged.

Referring to fig. 1 and 2, in some embodiments of the present utility model, the lifting guide mechanism 400 includes a guide bar 410 disposed at a side portion of the second rod 300 and extending in an up-down direction, at least one guide roller 420 is abutted to two opposite vertical sidewalls of the guide bar 410, and the guide roller 420 is configured to be rotatably disposed on the lower die holder 10. The guide rollers 420 positioned at both sides of the guide bar 410 can limit the second rod 300 to slide only in the up-down direction, and the guide rollers 420 can roll relative to the guide bar 410 to reduce friction between the two, thereby improving the smoothness of the lifting motion of the second rod 300.

Referring to fig. 1 and 2, in some embodiments of the present utility model, the guide strip 410 is provided with a plurality of first mounting holes 411 at intervals along a length direction thereof, the second rod 300 is provided with second mounting holes 310 corresponding to the first mounting holes 411 one by one, and the bolt assembly is inserted through the first mounting holes 411 and the corresponding second mounting holes 310 so that the guide strip 410 is detachably mounted to the second rod 300. The guide strip 410 is made of a wear-resistant material, for example, high manganese steel or chrome cast iron. When the guide strip 410 is worn to some extent to affect the guide accuracy, the guide strip 410 can be replaced by the above structure.

Referring to fig. 2 and 3, in some embodiments of the present utility model, the mounting plate 500 further includes a mounting plate 500, two rows of roller assemblies are disposed at intervals along a horizontal direction, each row of roller assemblies is configured with at least two guide rollers 420 disposed at intervals along an up-down direction, the guide bar 410 is slidably disposed between the two rows of roller assemblies, the mounting plate 500 is provided with a plurality of waist-shaped mounting holes 510, and a length direction of the waist-shaped mounting holes 510 is disposed to extend along the horizontal direction. The mounting plate 500 is used for being fixedly arranged on the lower die holder 10, in order to ensure that a proper fit clearance is formed between the guide roller 420 and the guide strip 410, a clamping phenomenon is avoided, the mounting plate 500 is slightly translated, and then the mounting plate 500 and the guide roller 420 are adjusted to a proper position by utilizing screws to pass through the waist-shaped mounting holes 510.

Referring to fig. 1, 3 and 4, in some embodiments of the present utility model, a third rod 600 is rotatably connected between the upper end of the second rod 300 and the upper die holder 20, and an adjusting mechanism 700 is disposed at a connection between the third rod 600 and the upper die holder 20, where the adjusting mechanism 700 is used for adjusting an initial position of the upper die holder 20 relative to the lower die holder 10. It should be noted that, the upper die holder 20 has an initial position and a die-cutting position relative to the lower die holder 10, the initial position is a position of the upper die holder 20 when the eccentric shaft 110 rotates to the highest point, the die-cutting position is a position of the upper die holder 20 when the eccentric shaft 110 rotates to the lowest point, and the upper die holder 20 can reciprocate between the initial position and the die-cutting position. The initial position of the upper die holder 20 relative to the lower die holder 10 can be changed by arranging the adjusting mechanism 700, and the die cutting position of the upper die holder 20 relative to the lower die holder 10 is also changed, so that the die cutting machine is suitable for production and debugging requirements, and is beneficial to improving the die cutting quality of products.

Referring to fig. 1, 3 and 4, in some embodiments of the present utility model, the adjusting mechanism 700 includes a connecting shaft 710 rotatably disposed on the upper die holder 20, the connecting shaft 710 is provided with an eccentric member 720 biased from an axis thereof, the eccentric member 720 is connected to the third rod 600, the connecting shaft 710 is connected to a rotation driving device 730, and the rotation driving device 730 drives the connecting shaft 710 to rotate so that the eccentric member 720 drives the third rod 600 to swing relative to the second rod 300, thereby adjusting an initial position of the upper die holder 20 relative to the lower die holder 10. In this embodiment, the rotation driving device 730 adopts a combination of a motor and a reduction gearbox, the eccentric member 720 is an eccentric sleeve sleeved outside the connecting shaft 710, an installation position for installing the eccentric sleeve is provided at the upper end of the third rod body 600, and when the motor drives the connecting shaft 710 to rotate, the eccentric sleeve drives the third rod body 600 to deflect relative to the second rod body 300 to adjust the initial position of the upper die holder 20 relative to the lower die holder 10, as shown in fig. 4.

Referring to fig. 1 and 2, in some embodiments of the present utility model, the third rod 600 includes a second arm plate 610 rotatably connected to the upper die holder 20, two side walls of the second arm plate 610 are respectively provided with a second clamping plate 620, a second pivot 630 is penetrated between the two second clamping plates 620, an upper end of the second rod 300 is rotatably disposed at the second pivot 630, the second rod 300 has a strip shape, and a thickness of the second rod 300 is adapted to a space between the two second clamping plates 620. It can be understood that when the initial position of the upper die holder 20 relative to the lower die holder 10 is adjusted, the third rod 600 rotates relative to the second rod 300, and the second rod 300 having a strip shape is still located between the two second clamping plates 620 after being deflected relative to the second arm plate 610, so as to avoid the movement of the third rod 600 relative to the second rod 300 along the length direction of the connecting shaft 710, ensure the stability and certainty of the transmission between the third rod 600 and the second rod 300, avoid abnormal noise and noise, and improve the service life of the die-cutting transmission mechanism.

Referring to fig. 3, the utility model also discloses a die cutting device, comprising the die cutting transmission mechanism of any technical scheme; the die cutting equipment can solve the problem that the upper die holder 20 is rubbed during die cutting, reduce the probability of rubbing the cutter, improve or eliminate burrs after die cutting, improve the product quality and prolong the service life of the cutter.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (9)

1. A die cutting drive mechanism, comprising:

the main shaft (100) is used for being rotatably arranged on the lower die holder (10), and eccentric shafts (110) which are offset relative to the axes of the main shaft (100) are arranged at two ends of the main shaft;

the lower end of the first rod body (200) is rotatably connected with the eccentric shaft (110), the upper end of the first rod body (200) is rotatably connected with a second rod body (300), and the upper end of the second rod body (300) is connected with the upper die holder (20);

and the lifting guide mechanism (400) is arranged on the lower die holder (10) and used for guiding the second rod body (300) to move up and down relative to the lower die holder (10) so as to drive the upper die holder (20) to reciprocate up and down.

2. The die cutting transmission mechanism according to claim 1, wherein the first rod body (200) comprises a first arm plate (210) rotatably connected to the eccentric shaft (110), two side walls of the first arm plate (210) are respectively provided with a first clamping plate (220), a first pivot (230) is arranged between the two first clamping plates (220) in a penetrating way, the lower end of the second rod body (300) is rotatably arranged at the first pivot (230), the second rod body (300) is in a strip shape, and the thickness of the second rod body (300) is matched with the distance between the two first clamping plates (220).

3. The die cutting transmission mechanism according to claim 2, wherein the lifting guide mechanism (400) comprises a guide bar (410) arranged at the side part of the second rod body (300) and extending along the up-down direction, at least one guide roller (420) is abutted to two opposite vertical side walls of the guide bar (410), and the guide roller (420) is used for being rotatably arranged on the lower die holder (10).

4. A die cutting transmission mechanism according to claim 3, wherein the guide bar (410) is provided with a plurality of first mounting holes (411) at intervals along the length direction thereof, the second rod body (300) is provided with second mounting holes (310) corresponding to the first mounting holes (411) one by one, and the bolt assembly is arranged through the first mounting holes (411) and the corresponding second mounting holes (310) so that the guide bar (410) can be detachably mounted on the second rod body (300).

5. A die cutting transmission mechanism according to claim 3, further comprising a mounting plate (500), wherein two rows of roller assemblies are arranged on the mounting plate (500) at intervals along the horizontal direction, each row of roller assemblies is provided with at least two guide rollers (420) distributed at intervals along the up-down direction, the guide strips (410) are slidably arranged between the two rows of roller assemblies, the mounting plate (500) is provided with a plurality of waist-shaped mounting holes (510), and the length direction of the waist-shaped mounting holes (510) is extended along the horizontal direction.

6. The die cutting transmission mechanism according to claim 1, wherein a third rod body (600) is rotatably connected between the upper end of the second rod body (300) and the upper die holder (20), an adjusting mechanism (700) is arranged at the joint of the third rod body (600) and the upper die holder (20), and the adjusting mechanism (700) is used for adjusting the initial position of the upper die holder (20) relative to the lower die holder (10).

7. The die cutting transmission mechanism according to claim 6, wherein the adjusting mechanism (700) comprises a connecting shaft (710) rotatably arranged on the upper die holder (20), the connecting shaft (710) is provided with an eccentric member (720) biased with the axis of the connecting shaft, the eccentric member (720) is connected with the third rod body (600), the connecting shaft (710) is connected with a rotation driving device (730), and the rotation driving device (730) drives the connecting shaft (710) to rotate so that the eccentric member (720) drives the third rod body (600) to swing relative to the second rod body (300), and then the initial position of the upper die holder (20) relative to the lower die holder (10) is adjusted.

8. The die cutting transmission mechanism according to claim 6, wherein the third rod body (600) comprises a second arm plate (610) rotatably connected to the upper die holder (20), two side walls of the second arm plate (610) are respectively provided with a second clamping plate (620), a second pivot (630) is arranged between the two second clamping plates (620) in a penetrating way, the upper end of the second rod body (300) is rotatably arranged on the second pivot (630), the second rod body (300) is in a strip shape, and the thickness of the second rod body (300) is matched with the interval between the two second clamping plates (620).

9. A die cutting apparatus comprising a die cutting drive mechanism according to any one of claims 1 to 8.