CN114890196A

CN114890196A - Roll changing device capable of automatically splicing household paper in production line

Info

Publication number: CN114890196A
Application number: CN202210615165.4A
Authority: CN
Inventors: 李志红; 徐华; 郑杰; 马中德; 朱三元; 熊巍
Original assignee: Vinda Personal Care China Co Ltd
Current assignee: Vinda Personal Care China Co Ltd
Priority date: 2022-06-01
Filing date: 2022-06-01
Publication date: 2022-08-12
Anticipated expiration: 2042-06-01
Also published as: CN114890196B

Abstract

The invention discloses a coil changing device of a household paper production line capable of automatically receiving paper, which comprises a rack, wherein a paper roll supporting arm is arranged on the outer side of the rack, a paper guide roller set is arranged on the inner side of the rack, a gantry type upright post is arranged in the middle of the rack, a paper receiving arm is arranged on the upright post, an old paper roll is placed on the supporting arm, a new paper roll is placed on the paper receiving arm, and the paper head of the new paper roll sags to be overlapped with the paper tail surface of the old paper roll; the paper guide roller is characterized in that a paper pressing mechanism is further arranged on the rack, a paper pressing roller is arranged in the paper pressing mechanism, the paper pressing roller is matched with one paper guide roller in the paper guide roller set, and the paper pressing roller and the paper guide roller set are moved to a position between the paper pressing roller and the paper guide roller set and overlapped mutually, the paper head and the paper tail are clamped to enable the paper head and the paper tail to be mutually attached and connected. The invention realizes the non-stop connection of the paper head of the new paper roll and the paper tail of the old paper roll by arranging the pressing mechanism, really realizes the continuous production of a production line, saves manpower and improves the production efficiency.

Description

Roll changing device capable of automatically splicing household paper in production line

Technical Field

The invention relates to a production device of household paper, in particular to a roll changing device of a household paper production line capable of automatically splicing paper.

Background

The existing household paper such as paper towels and roll paper is usually formed by secondary processing of large paper rolls, the large paper rolls serving as raw materials are placed on a roll receiving device at the front end of a production line, and paper heads of the large paper rolls are led out and then are conveyed to the downstream through a plurality of paper guide rolls on the roll receiving device.

The structure of the roll receiving device is shown in fig. 1, a pair of paper roll supporting arms 2 is arranged on the outer side of a machine frame 1, a paper guide roll group 3 containing a plurality of paper guide rolls and a driving mechanism 4 thereof are arranged on the inner side of the machine frame 1, a portal type upright post 5 is arranged in the middle of the machine frame 1, and a pair of roll receiving arms 6 and a driving mechanism 7 thereof are arranged on the upright post 5. When the paper guide device works, a large paper roll is placed on the support arm 2, and a paper head is conveyed to the downstream through the paper guide roller group 3; when the paper roll on the supporting arm 2 is about to be released, a new large paper roll is sent to the roll receiving arm 6, at this time, in order to ensure the continuous conveying of the paper, the machine needs to be stopped, the paper head of the new paper roll is pulled down manually and connected with the paper tail of the old paper roll, the new paper roll is lowered to replace the old paper roll on the supporting arm 2, then the machine is started for production, and the paper head and the paper tail are connected by using adhesive tape or glue.

The width of the large paper roll can reach 3.5 meters, the paper end of a new paper roll is usually pulled by 2-3 people, people at other stations need to be summoned for pulling the paper, and the whole roll changing time reaches 20-30 minutes, so that the roll changing mode not only greatly restricts the production efficiency and capacity of a production line, but also a joint with adhesive tape or glue can enter domestic paper produced at downstream to cause defective products.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a roll changing device for a household paper production line capable of automatically splicing paper, which can realize the automatic connection of a new paper scroll head and an old paper scroll tail, thereby eliminating the pause of the production line caused by paper splicing and eliminating the hidden trouble of defective products caused by splicing in the past.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a roll changing device of a household paper production line capable of automatically collecting paper comprises a rack, wherein a paper roll supporting arm is arranged on the outer side of the rack, a paper guide roll group is arranged on the inner side of the rack, a portal type upright post is arranged in the middle of the rack, a paper roll collecting arm is arranged on the upright post, an old paper roll is placed on the supporting arm, a new paper roll is placed on the paper roll collecting arm, and the paper head of the new paper roll sags to be overlapped with the paper tail surface of the old paper roll; the paper guide roller is characterized in that a paper pressing mechanism is further arranged on the rack, a paper pressing roller is arranged in the paper pressing mechanism, the paper pressing roller is matched with one paper guide roller in the paper guide roller set, and the paper pressing roller and the paper guide roller set are moved to a position between the paper pressing roller and the paper guide roller set and overlapped mutually, the paper head and the paper tail are clamped to enable the paper head and the paper tail to be mutually attached and connected.

Further, nipper still includes support, swing arm, cylinder, the support is fixed in the frame, the swing arm articulates on the support, the cylinder body and the piston rod of cylinder respectively with the support with the swing arm is articulated and through the flexible drive swing arm swing of its piston rod, the dancer roll is rotatable to be installed change between the position of working and breaking away from the position in the swing arm and along with the swing of swing arm, the dancer roll at the position of working with lead the paper roll cooperate and to the process the paper head with the paper tail is exerted pressure, at the position of breaking away from, the dancer roll breaks away from the contact with paper.

Further, the cylinder body of cylinder with the support is articulated, the piston rod of cylinder with the swing arm is articulated.

Furthermore, the tail end of the cylinder body is provided with a hinge seat, the hinge seat is provided with a first hinge shaft, the support is provided with a second hinge shaft, the first hinge shaft and the second hinge shaft are connected through a middle connecting block, the middle connecting block is provided with two shaft holes which are perpendicular to each other, and the first hinge shaft and the second hinge shaft are respectively assembled in the two shaft holes to realize the hinge connection of the cylinder body and the support; and a third hinge shaft is arranged on the swing arm, and one end of the piston rod is connected with the third hinge shaft through a joint bearing.

Further, the swing arm is composed of a strip-shaped plate, the third hinge shaft is located in the middle of the strip-shaped plate in the length direction, the paper pressing roller is located at the front end of the strip-shaped plate, and the rear end of the strip-shaped plate is hinged to the support.

Furthermore, the support comprises the flat board, this flat board through a plurality of branch that the interval was arranged with the frame is fixed mutually, the both sides of flat board respectively are provided with a set of by the movable assembly that cylinder, swing arm, dancer roll are constituteed.

Furthermore, two groups of paper pressing mechanisms are arranged on the rack along the width direction of the rack.

Further, the paper pressing rollers in the two groups of paper pressing mechanisms are coaxially arranged.

Further, a pressure sensor used for controlling the air cylinder to work is further arranged on the paper pressing roller.

Further, a group of air nozzles are respectively arranged on the inner side and the outer side of the falling paper head of the new paper roll on the rack, and the two groups of air nozzles are used for blowing the falling paper head of the new paper roll to a position between the paper pressing roller and the paper guide roller which are matched with each other.

The invention realizes the non-stop connection of the paper head of the new paper roll and the paper tail of the old paper roll by arranging the pressing mechanism, really realizes the continuous production of a production line, saves manpower and improves the production efficiency. Through setting up the tuyere, when realizing that automatic paper head with new scroll is sent into between dancer roll and the paper guide roll, still guaranteed the level and smooth of the whole width scope of paper head, guarantee the linking quality of paper head paper tail. Through setting up pressure sensor for the controlling means of production line can pass through the pressure of air cylinder regulation dancer roll, has both guaranteed that the paper tail reliably carries the paper end to remove together under pressure, avoids too big and cause the damage of paper again. The four paper pressing rollers on the two groups of paper pressing mechanisms are used for pressing, so that the arrangement of the paper pressing rollers is convenient, and the smoothness of the whole width of the paper can be ensured.

Drawings

FIG. 1 is a schematic structural diagram of a roll changing device in a conventional household paper production line;

FIG. 2 is a schematic structural view of a roll changing device of a household paper production line;

FIG. 3 is an exploded view of the platen mechanism of the present invention;

figure 4 is a schematic view of the position of the platen roller and the air nozzle in the present invention.

Detailed Description

The present invention will be described in detail with reference to examples.

The roll changing device for the production line of the household paper capable of automatically collecting paper comprises a rack, wherein a pair of paper roll supporting arms are arranged on the outer side of the rack, a paper guide roll group comprising a plurality of paper guide rolls and a driving mechanism of the paper guide roll group are arranged on the inner side of the rack, a portal type upright post is arranged in the middle of the rack, a butt-joint roll arm and a driving mechanism of the butt-joint roll arm are arranged on the upright post, old paper rolls are placed on the two supporting arms, new paper rolls are placed on the two butt-joint roll arms, and the paper heads of the new paper rolls droop to be overlapped with the paper tail surfaces of the old paper rolls; the paper pressing mechanism is further arranged on the rack, the paper pressing roller is arranged in the paper pressing mechanism, the paper pressing roller is matched with one of the paper guiding rollers in the paper guiding roller group, the paper head of the new paper roll and the paper tail of the old paper roll which are moved between the paper guiding rollers and are overlapped with each other are clamped, so that the paper head of the new paper roll and the paper tail of the old paper roll are attached and connected with each other, the paper head of the new paper roll can be brought into downstream equipment along with the movement of the paper tail of the old paper roll, the connection between the new paper roll and the old paper roll is realized, and the continuous production of a production line without stopping is realized.

Because the paper surface of the paper roll is not a smooth plane but has a plurality of tiny concave-convex and folds, a certain clamping force is applied to the overlapped paper head and the paper tail, so that the surfaces of the paper head and the paper tail can be embedded and adhered to each other, and the follow-up of the paper head and the paper tail is realized.

The paper pressing mechanism can be in various specific forms for realizing the clamping connection of the paper head and the paper tail. Fig. 2-4 show a specific embodiment, and the example is described below with reference to the accompanying drawings.

As shown in fig. 2, two sets of paper pressing mechanisms 8 are arranged on the frame 1 at the inner side of the paper guide roller group 3 along the width direction of the frame 1, and each set of paper pressing mechanisms 8 is fixed to the frame 1 through two support rods 9.

As shown in fig. 3, the paper pressing mechanism 8 includes a bracket 16 made of a flat plate, and the bracket 16 is fixed to the chassis 1 by two support rods 9. The both sides of support 16 respectively are provided with a set of movable assembly by cylinder 15, swing arm 12, the dancer roll 10 is constituteed, two sets of movable assembly mutual mirror image, wherein, swing arm 12 is made by the strip board, the rear end rotatable mounting of swing arm 12 is on the axle 13 that sets up on support 16, the dancer roll 10 rotatable mounting is on the axle 11 that the swing arm 12 front end is fixed, the tail end of cylinder 15 cylinder body sets up articulated seat 17, be provided with first articulated shaft 20 on the articulated seat 17, be provided with second articulated shaft 19 on the support 16, be connected through middle connecting block 18 between articulated seat 17 and the support 16, correspondingly, be provided with the mutually perpendicular shaft hole that supplies first articulated shaft 20 and second articulated shaft 19 to insert respectively on the middle connecting block 18, the tip of cylinder 15 piston rod passes through joint bearing and the third articulated shaft 14 rotatable coupling that the support 16 middle part set up. The two groups of paper pressing mechanisms 8 have four paper pressing rollers 10, and the four paper pressing rollers 10 are positioned on the same axis. The paper guide roller group 3 at the inner side of the frame 1 comprises a plurality of paper guide rollers, and four paper pressing rollers 10 are selected to be matched with one of the paper guide rollers, such as the paper guide roller 3-1 in figure 4, so as to clamp the paper head and the paper tail passing through the paper guide rollers and enable the paper head to move along with the paper tail.

It is emphasized that the above-described articulated connection of the cylinder body and the piston rod of the cylinder 15 not only facilitates the mounting of the cylinder 15, but more importantly, avoids the cylinder 15 being disturbed by additional lateral forces to ensure accurate control of the pressure applied by the platen roller 10. The paper head and the paper tail are clamped by matching the four paper pressing rollers 10 which are arranged at intervals with the paper guide roller, so that the paper head can synchronously move along with the paper tail in the whole width direction, and the paper head is prevented from being wrinkled. The four platen rollers 10 are arranged on the same axis, and each platen roller 10 can swing independently, so that the four platen rollers 10 can be linked conveniently, and each platen roller 10 can float along with the change of the thickness of paper at the position under the condition of keeping the same pressure.

The platen roller 10 is further provided with a pressure sensor (not shown), and a control device (not shown) of the production line can control the thrust of the air cylinder 15 according to a detection signal of the pressure sensor to control the pressure of the platen roller 10.

As shown in fig. 4, the paper head 24 of the new paper roll 21 drops from top to bottom, and a plurality of air nozzles 22 are arranged on the two sides of the paper surface of the paper head 24 on the frame 1 in order to make the paper head 24 automatically drop to the surface of the paper tail 25 of the old paper roll 23 between the paper pressing roller 10 and the paper guide roller 3-1 in a flattened state.

Since the structure of the inner side of the frame 1 where the guide roller group 3 is located is relatively complicated, the positions of the platen roller 10 and the air nozzle 22 and the mutual positional relationship between the new-reel paper head 24 and the old-reel paper tail 25 are shown only schematically in fig. 4 in order to concisely and clearly explain the matching relationship between the platen roller 10 and the guide roller and the positional requirements of the air nozzle 22.

Finally, it should be pointed out that besides the above examples, there may be many other embodiments of the invention, which can be made by those skilled in the art, and the above examples are only used for illustration and do not limit the scope of the invention.

Claims

1. A roll changing device of a household paper production line capable of automatically collecting paper comprises a rack, wherein a paper roll supporting arm is arranged on the outer side of the rack, a paper guide roll group is arranged on the inner side of the rack, a portal type upright post is arranged in the middle of the rack, a paper roll collecting arm is arranged on the upright post, an old paper roll is placed on the supporting arm, a new paper roll is placed on the paper roll collecting arm, and the paper head of the new paper roll sags to be overlapped with the paper tail surface of the old paper roll; the paper pressing mechanism is characterized in that a paper pressing mechanism is further arranged on the rack, a paper pressing roller is arranged in the paper pressing mechanism, the paper pressing roller is matched with one paper guiding roller in the paper guiding roller set, and the paper head and the paper tail which are moved between the paper pressing roller and the paper guiding roller set and are overlapped with each other are clamped to enable the paper head and the paper tail to be attached to each other.

2. The reel changer according to claim 1, wherein the platen mechanism further comprises a bracket, a swing arm, and an air cylinder, the bracket is fixed on the frame, the swing arm is hinged on the bracket, the cylinder body and the piston rod of the air cylinder are respectively hinged with the bracket and the swing arm and drive the swing arm to swing through the extension and retraction of the piston rod of the air cylinder, the platen roller is rotatably mounted on the swing arm and is switched between a working position and a release position along with the swing of the swing arm, the platen roller is matched with the paper guide roller in the working position to press the paper head and the paper tail which pass through the platen roller, and the platen roller is released from contact with the paper in the release position.

3. The reel changer according to claim 2, characterized in that the cylinder body of the cylinder is hinged to the support, and the piston rod of the cylinder is hinged to the swing arm.

4. The reel changer according to claim 3, wherein the tail end of the cylinder body is provided with a hinge seat, the hinge seat is provided with a first hinge shaft, the bracket is provided with a second hinge shaft, the first hinge shaft and the second hinge shaft are connected through an intermediate connecting block, the intermediate connecting block is provided with two shaft holes which are perpendicular to each other, and the first hinge shaft and the second hinge shaft are respectively assembled in the two shaft holes to realize the hinged connection of the cylinder body and the bracket; and a third hinge shaft is arranged on the swing arm, and one end of the piston rod is connected with the third hinge shaft through a joint bearing.

5. The reel changer according to claim 4, wherein the swing arm is formed of a strip plate, the third hinge shaft is located at a middle portion in a length direction of the strip plate, the platen roller is located at a front end of the strip plate, and a rear end of the strip plate is hingedly connected to the bracket.

6. The reel changer according to claim 5, wherein the support is formed of a plate fixed to the frame by a plurality of spaced-apart support rods, and a set of movable assemblies consisting of the cylinder, the swing arm, and the platen roller are provided on both sides of the plate.

7. The reel changer according to claim 6, wherein two sets of said paper pressing mechanisms are arranged on said frame in a width direction thereof.

8. The reel changer of claim 7, wherein said platen rollers in said two sets of platen mechanisms are coaxially arranged.

9. The reel changer according to claim 1, wherein a pressure sensor for controlling the operation of said air cylinder is further provided on said platen roller.

10. The roll changing apparatus according to claim 1, wherein a set of nozzles are provided on the frame on both sides of the head of the new paper roll, and the two sets of nozzles are used to blow the head of the new paper roll between the platen roller and the guide roller.