CN111807122A

CN111807122A - Elastic rolling device

Info

Publication number: CN111807122A
Application number: CN202010613997.3A
Authority: CN
Inventors: 杨正勇; 高贤杰; 何贤励; 邢俊美; 高空
Original assignee: Kunming Dingchengqixin Technology Co ltd
Current assignee: Kunming Dingchengqixin Technology Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2020-10-23

Abstract

The invention provides an elastic rolling device which comprises two rollers which rotate relatively and rolling dies which are respectively arranged on the two rollers. The device can fundamentally solve the stress concentration generated by rigid rolling extrusion when two rolling dies are extruded relatively, reduce the abrasion or dent generation of the pressing surfaces of the two rolling dies, prolong the service life of the device, ensure the pressing effect of new and old strips, solve the problems of deformation and fracture of fastening screws caused by stress concentration through the inclined plane arrangement of each combination position, avoid the occurrence of accidents such as deformation and fracture of connecting pieces to influence production, even cause safety accidents and the like, ensure the pressing effect of the new and old strips, and ensure safe production.

Description

Elastic rolling device

Technical Field

The invention relates to an elastic rolling device, in particular to an elastic rolling device for splicing thin sheets and strips, and belongs to the technical field of printing and packaging equipment.

Background

In a printing and packaging machine, when the packaging material participates in processing in a roll form, a part of the packaging material needs to adopt a glue-free splicing device to realize the splicing of a new packaging strip and an old packaging strip. The glue-free splicing device is used for pressing new and old belt materials entering two pressing surfaces in a mode that the two pressing surfaces of two rolling dies rotate oppositely at the same speed so as to complete the connection. The existing splicing device comprises a pair of rolling dies which are respectively arranged on a rotating roller, and the two rolling dies are in rigid rolling extrusion during working, so that abrasion or dent generation of two pressing surfaces can be inevitably caused due to the existence of stress, the interference extrusion force of the rolling dies on packaging materials is insufficient, and the pressing effect of new and old strips is influenced. Therefore, there is a need for improvements in the prior art.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the elastic rolling device with reliable performance and high durability.

The invention is realized by the following technical scheme: the elastic rolling device comprises two rollers which rotate relatively and rolling dies which are respectively arranged on the two rollers, and is characterized in that an elastic cushion is arranged between the rolling dies and the rollers of at least one of the two rollers, so that the stress generated by rigid rolling extrusion is eliminated through the elastic cushion, the abrasion or the dent generation of two pressing surfaces is reduced, and the pressing effect of new and old belt materials is ensured.

The shape of the elastic pad is matched with the shape of the bottom of the rolling dies, so that the elastic pad is extruded and deformed when the two rolling dies rotate and extrude at the same speed in opposite phases, stress concentration is eliminated, and then the resilience force of the elastic pad ensures that the two rolling dies have enough extrusion pressure degree on a new strip and an old strip in the laminating process, thereby ensuring that the new strip and the old strip are smoothly laminated and connected.

Be equipped with the supporting pad between cushion and the roller, the radial both sides of this supporting pad are equipped with the side of upwarping respectively for the restriction cushion is excessive to both sides limit and is out of shape, prevents that cushion both sides limit from extending.

The middle part of the elastic pad is provided with a groove, so that when the two rolling dies are pressed oppositely, the contact position between the die surface of the rolling die above the elastic pad and the die surface of the opposite rolling die is stressed uniformly.

The elastic pad, the supporting pad and the roller below the elastic pad are provided with radial through holes, the die surface of the rolling die above the elastic pad is designed to be circular arc, the middle part of the die bottom is provided with a T-shaped through groove, a screw cap of a fastening screw is arranged in the T-shaped through groove in a sliding mode, a screw rod sequentially penetrates through the radial through holes in the elastic pad, the supporting pad and the roller to extend downwards and then is in threaded connection with the screw nut, the rolling die, the elastic pad and the supporting pad are fastened on the roller, so that enough extrusion force is formed on the two rolling dies when the two rolling dies are pressed on a new strip and an old strip relatively, and impact caused by stress on the strips.

Rolling die bottom and cushion surface bonding position, cushion bottom and supporting pad surface bonding position, supporting pad bottom and roller bonding position all establish as the inclined plane that middle height, both edges are low, wherein:

the inclined plane at the extrusion starting end is an input end inclined plane, and an included angle between the input end inclined plane and a connecting line from a contact point where the two rolling dies start to extrude to the roll center is 75-105 degrees;

the inclined plane at the extrusion finishing end is an outlet end inclined plane, and an included angle between the outlet end inclined plane and a connecting line from a contact point of two rolling dies after extrusion to a roller center is 75-105 degrees;

so as to effectively avoid stress concentration when the two rolling dies are oppositely extruded and ensure that the fastening screw cannot be deformed and broken.

The elastic pad or the two side edges of the elastic pad and the supporting pad respectively extend to the outer side of a connecting line from a contact point of the two rolling dies at the beginning of extrusion to the roller core and from a contact point of the two rolling dies at the end of extrusion to the roller core.

The rolling die surfaces on the two rollers are both set to be smooth surfaces, or are both set to be tooth surfaces with a plurality of convex teeth, or are both set to be tooth surfaces with a plurality of concave-convex teeth, or one of the die surfaces is set to be a smooth surface, and the other die surface is set to be a tooth surface with a plurality of concave-convex teeth or a plurality of convex teeth, so that the new and old strips entering the two pressing surfaces can be efficiently pressed and connected.

The roll shafts of the two rolls are respectively connected with respective power machines so as to be driven by the respective power machines to rotate to complete the pressing connection of the new and the old belt materials.

One of the two rollers is connected with a power machine, a driving gear is arranged on the roller shaft, and a driven gear meshed with the driving gear is arranged on the other roller shaft, so that the two rollers synchronously rotate through the driving gear and the driven gear under the driving of the power machine, and further the rolling die is driven to complete the press connection of new and old strips.

The invention has the following advantages and effects: by adopting the scheme, when the two rolling dies are extruded relatively, stress concentration generated by rigid rolling extrusion is fundamentally solved through the elastic pad or the elastic pad and the supporting pad, abrasion of the pressing surfaces of the two rolling dies or indentation is reduced, the service life of the device is prolonged, the pressing effect of new and old strips is ensured, the problems of deformation and breakage of fastening screws caused by stress concentration are solved through the inclined plane arrangement of each combination position, the production is prevented from being influenced due to the occurrence of accidents such as deformation and breakage of connecting pieces, even safety accidents occur, the pressing effect of the new and old strips is ensured, and safety production is ensured.

Drawings

FIG. 1 is a schematic structural view of the present invention applied to a non-tape splicing apparatus;

fig. 2 is a connection diagram of the roller 2 and the rolling die 8, the elastic pad and the supporting pad thereon in fig. 1;

FIG. 3 is a schematic view of the beginning of contact of two rolling dies;

fig. 4 is a schematic view of the end of contact of two rolling dies.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

The invention provides an elastic rolling device, which comprises two

rollers

1 and 7 which rotate relatively and rolling dies respectively arranged on the two

rollers

1 and 7, wherein: a roll shaft 4 of the roll 1 is connected with a power motor (not shown in the figure), a driving gear 3 is arranged on the roll shaft 4, a driven gear 5 meshed with the driving gear 3 is arranged on a roll shaft 6 of the roll 7, and the two

rolls

1 and 7 can synchronously rotate under the driving of the power motor through the driving gear 3 and the driven gear 5 so as to drive the two rolling

dies

2 and 8 to rotate;

an elastic pad 9 and a supporting pad 10 are arranged between a rolling die 8 of a roller 7 in the two

rollers

1 and 7 and the roller 7; the shape of the elastic pad 9 is adapted to the shape of the bottom of the rolling die 8, and two radial sides of the supporting pad 10 are respectively provided with an upward-warped side edge 101 for limiting excessive deformation of the elastic pad 9 to two side edges and preventing the two side edges of the elastic pad from extending outwards; the middle part of the elastic pad 9 is provided with a groove 91, so that when the two rolling dies are pressed oppositely, the contact position between the die surface of the rolling die 8 above the elastic pad 9 and the die surface of the rolling die 2 opposite to the die surface is stressed uniformly; the elastic pad 9, the supporting pad 10 and the roller 7 below the elastic pad 9 are provided with radial through holes, the die surface of the rolling die 8 above the elastic pad 9 is designed to be circular arc, the middle part of the die bottom is provided with a T-shaped through groove 81, the screw cap of the fastening screw 11 is slidingly arranged in the T-shaped through groove 81, the screw sequentially penetrates through the radial through holes on the elastic pad 9, the supporting pad 10 and the roller 7 to extend downwards and then is in threaded connection with the nut 12, so that the rolling die 8, the elastic pad 9 and the supporting pad 10 are fastened on the roller 7, and the pre-tightening force formed by the elastic pad 9 is used for rapidly forming enough extrusion force on a new strip and an old strip when the two rolling

dies

2 and 8 are pressed on the new strip and; rolling die 8 bottoms and 9 surface bonding positions of cushion, 9 bottoms of cushion and 10 surface bonding positions of supporting pad, supporting pad 10 bottoms and roller 7 bonding position all establish to middle high, the low inclined plane 14 in both edges, wherein: the inclined plane 14 at the extrusion starting end is an input end inclined plane, and an included angle alpha between the input end inclined plane and a connecting line 15 from a contact point 13 at the extrusion starting of the two rolling dies to the roller center is 85 degrees; the inclined plane 17 at the extrusion finishing end is an outlet end inclined plane, and an included angle beta between the outlet end inclined plane and a connecting line 18 from a contact point 16 of two rolling dies after extrusion to a roller center is 85 degrees; so as to effectively avoid stress concentration when the two rolling

dies

2 and 8 are relatively extruded, and ensure that the fastening screw 11 cannot be deformed and broken; the two side edges of the elastic pad 9 and the supporting pad 10 respectively extend to the outer side of a connecting line 15 from a contact point 13 at the beginning of extrusion to the roller center of the two rolling

dies

2 and 8 and a connecting line 18 from a contact point 16 at the end of extrusion to the roller center.

In the rolling

dies

2 and 8 on the two

rollers

1 and 7, the die surface of the rolling die 2 is set to be a smooth surface, and the die surface of the rolling die 8 is set to be a tooth surface with a plurality of concave and convex teeth, so that new and old strips entering the two pressing surfaces can be efficiently pressed and connected.

The roller 1 and the rolling dies thereon are connected conventionally, namely, the roller 1 and the rolling dies thereon are connected by radial bolts 19 and nuts, wherein the inner ends of the bolts 19 penetrate through corresponding radial through holes on the roller 1 and are screwed with screw holes on the rolling dies 2, so that the rolling dies 2 are radially fixed on the roller 1; or, like the rollers 7 and the rolling dies 8 thereon, also by means of radial bolts and nuts.

When the two rolling

dies

2 and 8 rotate and extrude at the same speed in opposite phases, the elastic pad 9 is extruded and deformed to eliminate stress concentration, and then the resilience force of the elastic pad 9 ensures that the two rolling

dies

2 and 8 have enough extrusion pressure degree on the new and old strips in the pressing process, thereby ensuring the smooth pressing and connection of the new and old strips.

Claims

1. The elastic rolling device comprises two rollers which rotate relatively and rolling dies which are respectively arranged on the two rollers, and is characterized in that an elastic pad is arranged between the rolling die and the roller of at least one of the two rollers, and the shape of the elastic pad is matched with the shape of the bottom of the rolling die.

2. The resilient rolling device of claim 1, wherein a support pad is disposed between the resilient pad and the roller, and the support pad has two raised side edges at two radial sides thereof.

3. The elastomeric stitching device of claim 1, wherein a groove is formed in a central portion of the elastomeric pad.

4. The elastic rolling press device according to claim 2, wherein the elastic pad and the supporting pad and the roller therebelow are provided with radial through holes, the rolling die surface above the elastic pad is formed into a circular arc shape, the middle part of the die bottom is provided with a T-shaped through groove, the nut of the fastening screw is slidably arranged in the T-shaped through groove, and the screw rod sequentially passes through the elastic pad, the supporting pad and the radial through hole on the roller and then extends downwards to be screwed with the nut.

5. The elastic rolling press device according to claim 2, wherein the bottom of the rolling press die and the surface of the elastic pad are combined, the bottom of the elastic pad and the surface of the supporting pad are combined, and the bottom of the supporting pad and the roller are combined, and are all set to be slopes with high middle and low two edges, wherein:

the inclined plane at the extrusion finishing end is an outlet end inclined plane, and an included angle between the outlet end inclined plane and a connecting line from a contact point of two rolling dies after extrusion to a roller center is 75-105 degrees.

6. The elastic rolling device according to claim 1 or 2, wherein the two side edges of the elastic pad or the elastic pad and the supporting pad extend to the outside of the connecting line from the contact point of the two rolling dies at the beginning of pressing to the roller core and from the contact point of the two rolling dies at the end of pressing to the roller core.

7. The elastomeric stitching device of claim 1, wherein the die surfaces of the stitching dies on both rollers are configured as smooth surfaces, or as tooth surfaces with a plurality of teeth, or one of the die surfaces is configured as smooth surface and the other die surface is configured as tooth surface with a plurality of teeth or a plurality of teeth.

8. The elastomeric rolling device of claim 1, wherein the roller shafts of the two rollers are each coupled to a respective power machine.

9. The elastomeric rolling device of claim 1, wherein one of the two rollers is connected to a power machine, the roller having a driving gear thereon, the other roller having a driven gear thereon engaged with the driving gear.