CN111806779B

CN111806779B - Revolving body rolling device

Info

Publication number: CN111806779B
Application number: CN202010613987.XA
Authority: CN
Inventors: 何贤励; 高贤杰; 杨正勇; 邢俊美; 高空
Original assignee: Kunming Sanxing Zhizao Technology Co ltd
Current assignee: Kunming Sanxing Zhizao Technology Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2024-08-02
Anticipated expiration: 2040-06-30
Also published as: CN111806779A

Abstract

The invention provides a revolving body rolling device, which comprises two rollers which rotate relatively, and rolling dies which are respectively fixed on the two rollers through connecting pieces. When two rolling dies are extruded relatively, the problem of deformation and breakage of the connecting piece caused by stress concentration is fundamentally solved through the combined inclined plane of the rolling dies and the rollers, production is prevented from being influenced, even safety accidents and the like caused by the occurrence of accidents such as deformation and breakage of the connecting piece are avoided, the laminating effect of new and old strips is ensured, and safety production is ensured.

Description

Revolving body rolling device

Technical Field

The invention relates to a revolving body rolling device, in particular to a revolving body rolling device for splicing sheet strips, and belongs to the technical field of packaging strip splicing.

Background

In the printing and packaging machinery, when the packaging material participates in processing in the form of a coil, part of the packaging material can be connected with two strips of the packaging material by using a glue-free splicing device. The adhesive-free splicing device is used for laminating the new and the old strips through rolling dies of the splicing device at a synchronous speed, and the two laminating surfaces of the rolling dies are rotated in opposite directions at the same speed to laminate and splice the new and the old strips entering the two laminating surfaces. The rolling die in the prior art comprises two rotating rollers, and extrusion dies are arranged on the two rotating rollers through connecting bolts or screws, so that the two extrusion dies are rigidly extruded during pressing, impact and vibration force are inevitably generated during extrusion, the pressing effect of new and old strips is affected, the connection failure of the new and old strips is caused, the impact and vibration force is transmitted to connecting connectors such as bolts or screws, the stress concentration is caused, the connectors are deformed and broken, even the rolling die is separated, safety accidents are caused, and the rolling die has to be stopped for replacement, and frequent faults and replacement affect the working efficiency and have potential safety hazards. Accordingly, there is a need for improvements in the art.

Disclosure of Invention

The invention aims to solve the technical problem that when two rolling dies roll and squeeze relatively, accidents such as deformation, breakage and the like of a connecting piece caused by stress concentration can be avoided, the pressing effect of new and old strips is ensured, and the safety production is ensured.

Therefore, the invention provides a revolving body rolling device which can effectively avoid stress concentration when two rolling dies are extruded relatively.

The invention is realized by the following technical scheme: the rolling device for the revolving body comprises two rollers which rotate relatively, and rolling dies which are fixed on the two rollers through connecting pieces respectively, and is characterized in that inclined planes are arranged on the joint surfaces of the rolling dies and the rollers, and the included angle between the inclined planes and connecting lines from the contact points of the two rolling dies to the roller center is 75-105 degrees, so that stress concentration can be effectively avoided when the two rolling dies are extruded relatively, and the connecting pieces are prevented from deforming and breaking.

The combination position of the rolling die and the roller is symmetrically set into two inclined planes with high middle and low edge, wherein:

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

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

So as to avoid stress concentration when the two rolling dies are extruded relatively, and ensure that the connecting piece is not deformed and broken.

The connecting piece is a bolt and a nut, and the inner end of the bolt passes through the corresponding through hole on the roller and is in threaded connection with the screw hole on the rolling die, so that the rolling die is radially fixed on the roller.

The rolling die surfaces on the two rollers are smooth surfaces, or tooth surfaces with a plurality of convex teeth, or tooth surfaces with a plurality of concave-convex teeth, or one die surface is smooth surface, and the other die surface is 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 are pressed and connected with each other with high efficiency.

The roll shafts of the two rolls are respectively connected with the respective power machines so as to rotate under the drive of the respective power machines to finish the lamination connection of the new and old strips.

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

The invention has the following advantages and effects: by adopting the scheme, when two rolling dies are extruded relatively, the problem of deformation and breakage of the connecting piece caused by stress concentration is fundamentally solved through the combined inclined plane of the rolling dies and the rollers, production is prevented from being influenced, even safety accidents and the like caused by the occurrence of accidents such as deformation and breakage of the connecting piece are avoided, the pressing effect of new and old strips is ensured, and safety production is ensured.

Drawings

FIG. 1 is a schematic diagram of an application structure of the present invention on a tapeless splice device;

FIG. 2 is a schematic view of the connection structure of the roller and the rolling die;

FIG. 3 is a schematic view of the extrusion start end structure of two rolling dies;

FIG. 4 is a schematic view of the extrusion end of two rolling dies.

Detailed Description

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

The invention provides a revolving body rolling device, which comprises two rollers 1 and 8 which rotate relatively, rolling dies 2 and 7 which are respectively fixed on the two rollers 1 and 8 through connecting pieces, wherein: the roll shaft 4 of the roll 1 is connected with a power motor 5, a driving gear 3 is arranged on the roll shaft 4, a driven gear 6 meshed with the driving gear 3 is arranged on a roll shaft 9 of a roll 8, and the two rolls 1 and 8 can synchronously rotate through the driving gear 3 and the driven gear 6 under the drive of the power motor 5 so as to drive the two rolling dies 2 and 7 to rotate; the connecting piece 10 is a bolt and a nut, and the inner end of the bolt passes through corresponding through holes on the rollers 1 and 8 and is in threaded connection with screw holes on the rolling dies 2 and 7, so that the rolling dies 2 and 7 are radially fixed on the rollers 1 and 8; the inclined planes of the rolling dies 2, 7 combined with the rollers 1, 8 are symmetrically set as two with high center and low edge, wherein: the inclined plane at the extrusion start end is an entrance end inclined plane 14, and an included angle alpha between the entrance end inclined plane 14 and a connecting line 13 from a contact point 12 of the extrusion start of the two rolling dies 2 and 7 to the roll center is 95 degrees; the inclined plane at the extrusion end is an outlet inclined plane 17, and an included angle beta between the outlet inclined plane 17 and a connecting line 16 from a contact point 15 of the extrusion end of the two rolling dies 2 and 7 to the roll center is 95 degrees; so as to avoid stress concentration when the two rolling dies 2, 7 are relatively extruded, and ensure that the connecting piece 10 is not deformed and broken; the die surfaces of the rolling dies 2 on the two rollers 1 are smooth surfaces, and the die surfaces of the rolling dies 7 on the rollers 8 are tooth surfaces with a plurality of concave and convex teeth, so that the new and old strips entering the two pressing surfaces are pressed and connected with high efficiency.

Claims

1. The rolling device for the revolving body comprises two rollers which rotate relatively, rolling dies which are fixed on the two rollers through connecting pieces respectively, wherein inclined planes are arranged on the joint surfaces of the rolling dies and the rollers, and the rolling device is characterized in that the included angle between the inclined planes and the connecting line between the contact points of the two rolling dies and the roller center is 75-105 degrees;

the roll shafts of the two rolls are respectively connected with the respective power machines.

2. The rolling device for the rotary body according to claim 1, wherein the connecting piece is a bolt and a nut, and the inner end of the bolt passes through a corresponding through hole on the roller and is in threaded connection with a screw hole on the rolling die, so that the rolling die is radially fixed on the roller.

3. The rolling device for the revolution body according to claim 1, wherein rolling die surfaces on the two rolls are both smooth surfaces, or are both tooth surfaces with a plurality of convex teeth, or are both tooth surfaces with a plurality of concave-convex teeth, or one of the die surfaces is a smooth surface, and the other die surface is a tooth surface with a plurality of concave-convex teeth or a plurality of convex teeth.