CN212312128U - Stock form cutting device - Google Patents

Abstract

The utility model relates to the technical field of roll paper processing equipment, in particular to a roll paper cutting device, which comprises a paper pushing mechanism and a linear driving mechanism, wherein the paper pushing mechanism comprises an air-expansion shaft and a paper pushing frame, the air-expansion shaft is rotatably arranged on the paper pushing frame, and the diameter of the shaft after the air-expansion shaft is ventilated is variable and is used for tensioning and positioning a roll paper core; the output end of the linear driving mechanism is connected with the paper pushing frame so as to drive the paper pushing frame to move along the conveying direction of the roll paper. On one hand, the original roller is replaced by the paper pushing mechanism with the air expansion shaft to position the roll paper, so that the roll paper is prevented from moving, the end face of the roll paper is prevented from being scratched, and the flatness of the end face of the roll paper is ensured; on the other hand, the paper pushing mechanism is only fixed to one side of the end face of the roll paper, when the roll paper is cut once, the cut part does not need to be independently blanked, the remaining part can be cut for the second time, continuous cutting of the roll paper is achieved, and production efficiency and equipment utilization rate of the device are improved.

Description

Stock form cutting device

Technical Field

The utility model relates to a stock form processing equipment technical field especially relates to a stock form cutting device.

Background

The web cutting device is one of the most commonly used equipment in the printing and packaging industry. The paper roll cutting device adopts a band saw to cut in the rotation process of the paper roll in the processing process of the paper roll, cuts a long section of paper roll into a plurality of paper rolls meeting specific length, and then packages the paper roll.

The existing roll paper cutting device is used for fixing and positioning roll paper at present by adopting the contact of two positioning rollers and the end surface of the roll paper due to the fact that the roll paper moves due to the change of the stress direction when the roll paper is cut in a rotating mode. Rolling contact friction is generated between the roller and the roll paper, so that on one hand, the end face of the roll paper is easily scratched, and the quality of the finished roll paper is influenced, and on the other hand, when the roller prevents the roll paper from moving, the end face of the roll paper is easily pressed to generate dents, and the positioning precision is influenced; simultaneously at the in-process of cutting the stock form, the both ends of stock form all need fixed positioning, and after the cutting was accomplished, need be with the partial unloading of stock form by the cutting, then fix a position remaining stock form again, then just can carry out the cutting for the second time, cause the complicated and trivial details of operation, waste time, equipment availability factor low scheduling problem.

Therefore, a roll paper cutting apparatus is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stock form cutting device can realize reducing the fish tail of stock form at cutting process in-process terminal surface and can realize the continuous cutting of stock form among the stock form cutting process, improves the accuracy of cutting and the utilization ratio of equipment.

In order to realize the purpose, the following technical scheme is provided:

a roll paper cutting apparatus comprising:

the paper pushing mechanism comprises an air expansion shaft and a paper pushing frame, the air expansion shaft is rotatably arranged on the paper pushing frame, and the diameter of the shaft can be changed after the air expansion shaft is ventilated, so that the air expansion shaft is used for tensioning and positioning the paper winding cores;

and the output end of the linear driving mechanism is connected with the paper pushing frame so as to drive the paper pushing frame to move along the conveying direction of the roll paper.

As an alternative of a roll paper cutting device, the paper ejection frame further comprises a mounting plate, a lifting driving assembly and a vertical frame, the tail of the air expansion shaft is rotatably arranged on the mounting plate, the output end of the lifting driving assembly is connected with the mounting plate to drive the air expansion shaft to move up and down along the vertical direction, the lifting driving assembly is fixedly arranged on the vertical frame, and the output end of the linear driving mechanism is connected with the vertical frame to drive the vertical frame to move along the conveying direction of roll paper.

As an alternative scheme of the roll paper cutting device, the roll paper cutting device further comprises a conveying mechanism used for conveying roll paper, the conveying mechanism comprises a roller base and a first roller set, the roller base extends along the conveying direction of the roll paper and is arranged, and the first roller set can ascend and descend and is arranged on the roller base.

As an alternative of the roll paper cutting device, the conveying mechanism further comprises a second roller set, the first roller set and the second roller set are arranged along the output direction of the roll paper and are separately and independently controlled, and the second roller set is arranged on the roller base in a liftable mode and is used for conveying the cut roll paper.

As an alternative scheme of a stock form cutting device, the stock form cutting device still includes cutting mechanism, cutting mechanism includes cutting case, first dustproof door, second dustproof door and the band saw that is used for cutting the stock form, the band saw sets up in the cutting case, first dustproof door with the second dustproof door sets up respectively the feed end and the discharge end of cutting case, the cutting case first dustproof door with the second dustproof door forms the cutting space.

As an alternative of the roll paper cutting device, the first dustproof door is arranged on the cutting box in a liftable mode, and an arc-shaped groove matched with the outer contour of the roll paper is formed in the lower end of the first dustproof door; and/or the second dust-proof door comprises two door plates which move towards each other to close the discharge end of the cutting box.

As an alternative of the roll paper cutting device, a displacement sensor is mounted at the lower end of the first dust-proof door for detecting the distance between the lower end surface of the first dust-proof door and the peripheral side surface of the roll paper.

As an alternative scheme of stock form cutting device, stock form cutting device still includes feed mechanism, feed mechanism set up in conveying mechanism's material loading end, feed mechanism includes feeding funnel, material loading base and material loading driving piece, be provided with the circular arc groove that is used for loading the stock form on the feeding funnel, the both ends of material loading base respectively with the feeding funnel with the material loading driving piece is articulated, the output of material loading driving piece with the feeding funnel is articulated, and can drive the feeding funnel around its with the articulated department of material loading base rotates to push up the stock form conveying mechanism.

As an alternative scheme of the roll paper cutting device, the roll paper cutting device further comprises a blanking mechanism arranged at the blanking end of the conveying mechanism, the blanking mechanism comprises a blanking frame, a blanking frame base and a blanking frame driving piece, the upper end and the lower end of the blanking frame are respectively hinged with the blanking frame driving piece and the blanking frame base, and the blanking frame driving piece drives the blanking frame to rotate around the hinged position of the blanking frame base so as to push out the cut roll paper from the conveying mechanism.

As an alternative of the roll paper cutting device, the feeding end of the conveying mechanism is provided with the blanking mechanism, the blanking frame and the feeding mechanism are symmetrically arranged on two sides of the conveying mechanism, and the blanking frame is used for preventing roll paper loaded by the feeding hopper from falling from one side of the blanking frame.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a stock form cutting device, including a paper mechanism and a linear driving mechanism, drive a paper mechanism by linear driving mechanism and remove and then make the inflatable axle insert the refill hole, then the inflatable axle fills the inflatable tight refill hole that rises, and linear driving mechanism carries the stock form to the cutting position, has avoided the contact of a paper mechanism and stock form terminal surface. On one hand, the original roller is replaced by the paper pushing mechanism with the air expansion shaft to position the roll paper, so that the roll paper is prevented from moving, the end face of the roll paper is prevented from being scratched, and the flatness of the end face of the roll paper is ensured; on the other hand, the paper pushing mechanism is only fixed to one side of the end face of the roll paper, when the roll paper is cut once, the cut part does not need to be independently blanked, secondary cutting can be conducted on the rest part, continuous cutting of the roll paper is achieved, operation is simple, time is saved, and production efficiency and equipment utilization rate are improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a roll paper cutting device according to an embodiment of the present invention in a first direction;

fig. 2 is a schematic structural diagram of a paper ejection mechanism according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a roll paper cutting device according to an embodiment of the present invention in a second direction;

fig. 4 is a schematic mechanism diagram of a feeding mechanism provided in the embodiment of the present invention;

fig. 5 is a schematic structural view of the blanking mechanism provided by the embodiment of the present invention.

Reference numerals:

1-a paper ejection mechanism; 11-an air expansion shaft; 12-a paper-pushing frame; 121-a mounting plate; 122-a lift drive assembly; 123-vertical frame;

2-a linear drive mechanism;

3-a feeding mechanism; 31-a feeding hopper; 311-arc groove; 32-a feeding base; 33-a feeding driving member;

4-a cutting mechanism; 41-a first dust-proof door; 411-arc groove; 412-a displacement sensor; 42-a second dust-proof door; 421-a door panel; 43-band saw; 44-a cutting box;

5-a conveying mechanism; 51-a first roller set; 52-a second roller set; 53-roller base;

6-a blanking mechanism; 61-blanking frame; 62-a blanking frame base; 63-a blanking frame driving part; 64-a base of a driving piece of the blanking frame;

7-carrying rollers.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution of the present invention is further described below by referring to the drawings and the detailed description.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that are usually placed when the product is used, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", and the like are used for descriptive purposes only or to distinguish between different structures or components and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 is a schematic structural diagram of the roll paper cutting device according to the first direction in the present embodiment, and includes a paper ejection mechanism 1, a linear driving mechanism 2, a feeding mechanism 3, a cutting mechanism 4, a conveying mechanism 5, a discharging mechanism 6, and a control module (not shown in the figure). Wherein, feed mechanism 3 is used for the material loading of stock form, straight line actuating mechanism 2 is used for driving a paper ejection mechanism 1 and removes along stock form direction of delivery to make a paper ejection mechanism 1 location or carry the stock form, cutting mechanism 4 is used for cutting the stock form, conveying mechanism 5 is used for carrying the stock form, unloading mechanism 6 is used for the unloading of stock form, control module is used for controlling a paper ejection mechanism 1, straight line actuating mechanism 2, feed mechanism 3, cutting mechanism 4, conveying mechanism 5 and unloading mechanism 6 to start or stop, in order to realize the full-automatic material loading of stock form, location, transport, cutting and the unloading operation.

In the present embodiment, the roll paper cutting device further includes rotatable idlers 7, and the two rotatable idlers 7 are symmetrically disposed on both sides of the conveying mechanism 5. The rotating carrier roller 7 is used for driving the roll paper to rotate, so that the cutting mechanism 4 can cut the roll paper conveniently, the moving distance of the band saw 43 is shortened, and the cutting efficiency is improved.

In the prior art, when the stock form is rotated and cut, the positioning rollers are usually arranged at the two ends of the stock form to realize positioning of the stock form, but the positioning rollers are serious in abrasion to the end face of the stock form, so that the positioning precision is influenced, and the continuous cutting cannot be realized by the conventional positioning roller positioning, so that the cutting efficiency of equipment is influenced.

In order to solve among the prior art cutting stock form in-process, the stock form terminal surface is easy fish tail, the location is not accurate, can not cut the scheduling problem in succession, fig. 2 does the utility model provides a structure schematic diagram of a paper mechanism 1 pushes up, pushes up paper mechanism 1 and includes inflatable shaft 11 and top paper frame 12, inflatable shaft 11 is rotatable to be set up on top paper frame 12, and inflatable shaft 11 ventilates the back axle footpath and is variable for the tight location that rises of stock form refill. The output end of the linear driving mechanism 2 is connected with the top paper frame 12 to drive the top paper frame 12 to move along the conveying direction of the roll paper.

In the process that the roll paper is cut, the roll paper is cut in the process that the roll paper rotates around the axis of the roll paper continuously, and due to the change of the stress direction, the roll paper generates play to influence the cutting precision, so that the tail part of the air expansion shaft 11 is rotatably connected with the mounting plate 121, the air expansion shaft 11 can rotate along with the roll paper while tensioning a paper core hole, and the play of the roll paper is inhibited.

In short, the utility model provides an among the stock form cutting device, drive a paper mechanism 1 by linear driving mechanism 2 and remove and then make inflatable shaft 11 insert the refill hole, then inflatable shaft 11 inflates tight refill hole, and linear driving mechanism 2 carries the stock form to the cutting position, has avoided the contact of a paper mechanism 1 with the stock form terminal surface. On one hand, the paper pushing mechanism 1 with the air expansion shaft 11 is adopted to replace the original roller to position the roll paper, so that the roll paper is prevented from moving, the end face of the roll paper is prevented from being scratched, and the flatness of the end face of the roll paper is ensured; on the other hand, the paper pushing mechanism 1 is only fixed to one side of the end face of the roll paper, when the roll paper is cut once, the cut part does not need to be independently blanked, the remaining part can be cut for the second time, continuous cutting of the roll paper is achieved, operation is simple, time is saved, and production efficiency and equipment utilization rate are improved.

Illustratively, the linear driving mechanism 2 comprises a servo motor, a lead screw, a guide rail and a lead screw nut, the lead screw nut is fixedly connected with the vertical frame 123, the servo motor drives the air-expansion shaft 11 on the paper ejection mechanism 1 to move to the center of the paper core hole through the matching of the lead screw and the lead screw nut, the air-expansion shaft 11 is inflated and tensioned in the paper core hole, the roll paper is fixed, and the servo motor continues to drive the paper ejection mechanism 1 to move along the guide rail, so that the roll paper is fed. In addition, servo motor's own encoder real-time recording pushes up the distance that paper mechanism 1 removed to give control module with data transmission, be convenient for control module judges whether the stock form reaches the cutting position, so that control module control servo motor stops, controls cutting mechanism 4 simultaneously and cuts the stock form.

Optionally, fig. 2 is the structural schematic diagram of a paper ejection mechanism that the embodiment of the utility model provides, a paper ejection frame 12 includes mounting panel 121, lift drive assembly 122 and grudging post 123, the rotatable setting in mounting panel 121 of afterbody of inflatable axle 11, lift drive assembly 122's output is connected with mounting panel 121, reciprocate along vertical direction with drive mounting panel 121 drives inflatable axle 11, lift drive assembly 122 is fixed to be set up on grudging post 123, straight line actuating mechanism 2's output is connected with grudging post 123, remove along the direction of delivery of stock form with drive grudging post 123. The mounting dimension of the air expansion shaft 11 is located in the middle of the two carrier rollers 7, and the lifting driving mechanism 122 only needs to move the air expansion shaft 11 in the vertical direction, so that the hole finding alignment of the paper core holes of the roll paper can be realized.

Specifically, according to different processing orders, the diameters of the processed roll paper are different, and when the diameter of the roll paper is increased, the lifting drive assembly 122 drives the air expansion shaft 11 to move upwards; when the diameter of the roll paper is small, the upgrading driving assembly drives the air expansion shaft 11 to move downwards, when the air expansion shaft 11 moves to the center of the roll paper core hole, the linear driving mechanism 2 drives the air expansion shaft 11 to be inserted into the roll paper core hole, then ventilation and tensioning are performed, the roll paper with different diameters is tensioned by the paper pushing mechanism 1, operation is simplified, and the versatility of the device is improved.

Optionally, fig. 3 is the schematic structural diagram of the second direction of the roll paper cutting device provided by the embodiment of the present invention, the conveying mechanism 5 includes a roller base 53, a first roller set 51 and a second roller set 52, the first roller set 51 and the second roller set 52 are all disposed on the roller base 53, the first roller set 51 is used for reducing the friction force between the roll paper feeding process and the rotary drum, and the second roller set 52 is used for conveying the cut roll paper to the discharging end of the conveying mechanism 5.

In this embodiment, the roller base 53 is extended in the conveying direction of the roll paper, and the first roller set 51 is disposed on the roller base 53 so as to be movable up and down, so that the roll paper can roll on the raised first idler set 51 and move forward, and the friction between the roll paper and the idler 7 is reduced.

Particularly, when stock form length overlength, cause the skew of top paper mechanism 1 focus easily, influence the stability that equipment removed, so set up first roller set 51 on conveying mechanism 5, after top paper mechanism 1 rises and tightly rises the refill, first roller set 51 rises and lifts the stock form off bearing roller 7, straight line actuating mechanism 2 drive top paper mechanism 1 removes, make the stock form roll on conveying mechanism 5 and remove, the frictional force with bearing roller 7 in the stock form feeding process has been reduced, the surface wear of stock form in the feeding process has been avoided, the focus offset of top paper mechanism 1 has been reduced simultaneously, realize the even running of top paper mechanism 1.

Optionally, fig. 3 is a schematic structural diagram of a second direction of the roll paper cutting device provided by the embodiment of the present invention, the first roller set 51 and the second roller set 52 are arranged along an output direction of the roll paper, and the first roller set 51 and the second roller set 52 are separately and independently controlled, and the second roller set 52 is liftable and arranged on the roller base 53 for conveying the cut roll paper.

Specifically, before the stock form cutting, second roller set 52 is located the below of bearing roller 7, and the stock form is cut the back, and second roller set 52 rises and lifts the stock form off bearing roller 7, and the running roller of second roller set 52 is rotated by power unit drive, and the stock form that will be cut off is carried to the unloading end, makes top paper mechanism 1 can continue to move along direction of delivery, has realized the continuous cutting of stock form, has improved production efficiency.

Optionally, fig. 1 is the structural schematic diagram of the first direction of stock form cutting device that the embodiment of the utility model provides, cutting mechanism 4 sets up in conveying mechanism 5's middle part, cutting mechanism 4 includes cutting case 44, first dustproof door 41, second dustproof door 42 and the band saw 43 that is used for cutting the stock form, band saw 43 sets up in cutting case 44, first dustproof door 41 and second dustproof door 42 set up the feed end and the discharge end at cutting case 44 respectively, cutting case 44, first dustproof door 41 and second dustproof door 42 form the cutting space.

Particularly, the stock form can produce the wastepaper bits by the in-process of band saw 43 cutting, and the stock form rotates the cutting and has further increaseed flying upward of wastepaper and dust, is unfavorable for workman's normal breathing, adds first dust door 41 and second dust door 42 respectively at the business turn over material end of cutting case 44, can form and compare confined space, the effectual influence that has restrained stock form cutting device to the processing environment.

Illustratively, a negative pressure containing box is arranged at the lower part of the cutting box 44 of the roll paper cutting device, so that waste paper scraps are further collected, waste utilization is realized, and paper resources are saved.

Optionally, the first dust-proof door 41 is disposed on the cutting box 44 in a liftable manner, and an arc-shaped groove 411 matched with an outer contour of the roll paper is disposed at a lower end of the first dust-proof door 41, so as to reduce a distance between the first dust-proof door 41 and the roll paper as much as possible, reduce escape of cut paper scraps, and ensure air quality.

Specifically, in the first cutting process of the roll paper, the feed end of the cutting mechanism 4 cannot be completely closed due to the influence of the length of the roll paper, so that the arc-shaped groove 411 is arranged below the first dust-proof door 41, and the closing degree of the first dust-proof door 41 is further increased.

Since the distance between the band saw 43 of the cutting mechanism 4 and the discharge end of the cutting box 44 is generally greater than the cutting length of the roll paper, as shown in fig. 3 in conjunction with fig. 1, the second dust-proof door 42 is designed to include two door plates 421, and the two door plates 421 are moved toward each other to close the discharge end of the cutting box 44, so that the discharge end of the cutting box 44 can be completely closed to prevent the cut paper dust from escaping.

In addition, after the stock form cutting, the stock form that is cut off is carried out cutting mechanism 4 by second roller set 52, for the speed of opening and shutting of accelerating the discharge gate, sets up second dustproof door 52 into two door closure, has improved the speed of equipment cutting, has also ensured operating personnel's personal safety simultaneously.

Optionally, a displacement sensor 412 is mounted at the lower end of the first dust-proof door 41 for detecting the distance between the lower end surface of the first dust-proof door 41 and the roll paper circumferential side surface.

Specifically, in the roll paper cutting process, since the roll paper needs to rotate, the lower end of the first dust-proof door 41 cannot completely adhere to the roll paper peripheral side surface, and therefore, the displacement sensor 412 is mounted on the lower end of the first dust-proof door 41, the stop and collision prevention functions of the first dust-proof door 41 are realized, and the peripheral side surface of the roll paper is effectively protected from being damaged.

In other embodiments, a universal ball may be further disposed on the lower end face of the first dust-proof door 41, so that the roll paper reduces the friction force between the roll paper and the first dust-proof door 41 during the rotation cutting process, and the circumferential side face of the roll paper is effectively protected from being damaged.

Alternatively, as shown in fig. 4 in conjunction with fig. 1, the feeding mechanism 3 is disposed at a feeding end of the conveying mechanism 5, the feeding mechanism 3 includes a feeding hopper 31, a feeding base 32 and a feeding driving member 33, an arc groove 311 for loading the roll paper is disposed on the feeding hopper 31, two ends of the feeding base 32 are respectively hinged to one ends of the feeding hopper 31 and the feeding driving member 33, and the other end of the feeding driving member 33 is hinged to the feeding hopper 31 and can drive the feeding hopper 31 to rotate around the hinged position of the feeding base 32 to push the roll paper to the conveying mechanism 5.

When cutting the roll paper with large diameter, the time and labor are consumed for manually carrying the roll paper, the roll paper is placed in the feeding hopper 31, further optionally, the hydraulic cylinder is selected as the feeding driving part 33, the arc-shaped groove 311 is formed in the feeding hopper 31, and the roll paper is attached to the inner side of the feeding hopper 31. When the pneumatic cylinder is in the shrink state, put feeding funnel 31 flat, arrange the stock form in feeding funnel 31, then the pneumatic cylinder extension realizes that feeding funnel 31 rotates to the material loading end, raises the stock form and pushes up conveying mechanism 5, realizes the automatic feeding of equipment, has improved production efficiency. In other embodiments, the feeding driving member 33 may also be a driving motor or a scissor mechanism to rotate the feeding hopper 31.

In other embodiments, the feeding driving member 33 can also use an electric push rod or an air cylinder.

Alternatively, as shown in fig. 5 in combination with fig. 3, the blanking mechanism 6 is disposed at the blanking end of the conveying mechanism 5, the blanking mechanism 6 includes a blanking frame 61, a blanking frame base 62 and a blanking frame driving member 63, the upper end and the lower end of the blanking frame 61 are respectively hinged to the blanking frame driving member 63 and the blanking frame base 62, and the blanking frame driving member 63 drives the blanking frame 61 to rotate around the hinged position of the blanking frame base 62, so as to push the cut roll paper out of the conveying mechanism 5. The blanking frame base 62 is hinged with the feeding end of the roller base 53, and the blanking frame driving piece 63 is hinged with the blanking frame driving piece base 64. The blanking frame drive base 64 is mounted to the ground and is level with the blanking frame base 62.

For example, when the swing angle of the blanking frame 61 is large, the blanking frame driving member base 64 and the blanking frame base 62 can be separately arranged, so that the space is reasonably utilized; when the swing angle of the blanking frame 61 is small, the blanking frame driving part base 64 and the blanking frame base 62 can be integrally arranged like the feeding base 32, so that the occupied area of the equipment is reduced, and the space utilization rate is improved.

For example, when cutting large-diameter roll paper, it takes time and labor to manually carry the roll paper, and further alternatively, the blanking frame driving member 63 is a hydraulic cylinder, the output end of the hydraulic cylinder is hinged with the upper end of the blanking frame 61, and the tail part of the cylinder body of the hydraulic cylinder is hinged with the blanking frame driving member base 64. Before pushing away the paper, the pneumatic cylinder is in the shrink state, and unloading frame 61 head is towards the conveying mechanism 5 outside, and when the stock form that second roller set 52 will be cut off was carried to the unloading end, the upper end of pneumatic cylinder extension drive unloading frame 61 turned to the stock form, released the stock form, has realized the automatic unloading of stock form, has improved production efficiency. In other embodiments, the driving member 63 of the blanking frame can also be a driving motor or a scissor telescopic mechanism to realize the rotation of the blanking frame 61.

In other embodiments, the blanking frame driving member 63 can also be an electric push rod or an air cylinder.

Illustratively, the upper end of the blanking frame 61 can be provided with a rotatable sleeve, the sleeve is in contact with the roll paper, and the sleeve can rotate during the blanking process of the roll paper, so as to reduce the friction between the roll paper and the blanking frame 61 and effectively protect the peripheral side surface of the roll paper from being damaged.

Alternatively, as shown in fig. 3, the feeding end of the conveying mechanism 5 is provided with a blanking mechanism 6, and a blanking frame 61 and the feeding mechanism 3 are symmetrically arranged on both sides of the conveying mechanism 5, the blanking frame 61 being used to prevent the roll paper loaded by the feeding hopper 31 from falling from the blanking frame 61 side. The blanking mechanism 6 at the feeding end and the blanking mechanism 6 at the blanking end have the same functional structure, and are not described again here.

Particularly, the unloading frame 61 of conveying mechanism 5 material loading end is when preparing the stage, unloading frame driving piece 63 is in the extension state, make unloading frame 61 rotate to the position that is close to feeding funnel 31, raise the stock form when inconsistent with unloading frame 61 when feeding mechanism 3, unloading frame 61 falls back earlier than feeding funnel 31, the stock form falls back simultaneously along with the unloading frame 61 of contradicting, last stock form is placed on bearing roller 7 by steady, realize the automatic feeding of stock form, and the stock form is placed in the cooperation of feeding funnel 31 and unloading frame 61, the stock form has been avoided at the material loading in-process, drop from one side of unloading frame 61, realize steadily placing of stock form, personnel safety has been protected, production efficiency has been improved.

For convenience of understanding, the working principle and the working process of the roll paper cutting device provided by the embodiment are as follows:

1) during the preparation stage: the paper ejection mechanism 1 is located at the tail end limit position of the conveying mechanism 5, a gap exists between the head of the air expansion shaft 11 arranged on the paper ejection mechanism 4 and the feeding end of the conveying mechanism 5, the air expansion shaft 11 is prevented from colliding with the air expansion shaft 11 during roll paper feeding, the air expansion shaft 11 is located at the lower end limit position of the paper ejection frame 12, and the first roller set 51 and the second roller set 52 are located below the carrier rollers 7 respectively.

2) A feeding stage: the feeding mechanism 3 and the blanking mechanism 6 at the feeding end move in a matching way to place the roll paper on the feeding end of the conveying mechanism 5.

3) And (3) cutting: the air expansion shaft 11 assembled on the paper ejection mechanism 1 moves in the vertical direction according to the diameter of the roll paper until the center position of the roll paper core hole is aligned, the linear driving mechanism 2 drives the air expansion shaft 11 to be inserted into the roll paper core, the air expansion shaft 11 ventilates and tightly expands the roll paper core hole, the first roller set 51 rises to lift up the roll paper to enable the roll paper to be separated from the carrier roller 7, the control module controls the paper ejection mechanism 1 to move for a corresponding distance according to the specific length of the required roll paper, then the first roller set 51 falls back to the lower part of the carrier roller 7, the second dustproof door 42 is closed, the first dustproof door 41 moves downwards to a position with a certain gap from the peripheral side of the roll paper, the carrier roller 7 drives the roll paper to rotate, the roll paper starts to be rotationally cut, the air expansion shaft 11 driven by the paper core hole of the roll paper rotates, and the paper ejection mechanism 1 with the air expansion shaft 11 restrains the movement of the paper core.

4) A discharging stage: after the cutting, the second dust-proof door 42 is opened, and the second roller set 52 conveys the cut part out of the paper cutting mechanism 4 and then is pushed out by the blanking mechanism 6 at the blanking end.

5) A continuous cutting stage: the paper pushing mechanism 1 continues to move for a specific distance required to be cut, and performs circulating operation, so that continuous cutting of roll paper is realized.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (10)

1. A roll paper cutting apparatus characterized by comprising:

the paper pushing mechanism (1) comprises an air expansion shaft (11) and a paper pushing frame (12), the air expansion shaft (11) is rotatably arranged on the paper pushing frame (12), and the diameter of the shaft of the air expansion shaft (11) can be changed after ventilation, so that the air expansion shaft is used for tensioning and positioning a paper winding core;

and the output end of the linear driving mechanism (2) is connected with the paper ejection rack (12) so as to drive the paper ejection rack (12) to move along the conveying direction of the roll paper.

2. The roll paper cutting device according to claim 1, characterized in that the paper ejection frame (12) comprises a mounting plate (121), a lifting driving assembly (122) and a stand (123), the tail part of the inflatable shaft (11) is rotatably arranged on the mounting plate (121), the output end of the lifting driving assembly (122) is connected with the mounting plate (121) to drive the inflatable shaft (11) to move up and down along the vertical direction, the lifting driving assembly (122) is fixedly arranged on the stand (123), and the output end of the linear driving mechanism (2) is connected with the stand (123) to drive the stand (123) to move along the conveying direction of the roll paper.

3. The roll paper cutting device according to claim 1, characterized by further comprising a conveying mechanism (5) for conveying the roll paper, wherein the conveying mechanism (5) comprises a roller base (53) and a first roller group (51), the roller base (53) is arranged to extend in the conveying direction of the roll paper, and the first roller group (51) is arranged on the roller base (53) to be liftable.

4. A web cutting apparatus according to claim 3, characterized in that said transport mechanism (5) further comprises a second roller set (52), and said first roller set (51) and said second roller set (52) are arranged along the output direction of the web, and said first roller set (51) and said second roller set (52) are separately and independently controlled, and said second roller set (52) is liftably arranged on said roller base (53) for transporting the cut web.

5. The roll paper cutting device according to claim 1, characterized in that the roll paper cutting device further comprises a cutting mechanism (4), the cutting mechanism (4) comprises a cutting box (44), a first dust-proof door (41), a second dust-proof door (42) and a band saw (43) for cutting roll paper, the band saw (43) is arranged in the cutting box (44), the first dust-proof door (41) and the second dust-proof door (42) are respectively arranged at the feeding end and the discharging end of the cutting box (44), and the cutting box (44), the first dust-proof door (41) and the second dust-proof door (42) form a cutting space.

6. A roll paper cutting device according to claim 5, characterized in that the first dust-proof door (41) is liftably provided on the cutting box (44), and the lower end of the first dust-proof door (41) is provided with an arc-shaped groove (411) matching with the outer contour of the roll paper; and/or

The second dust-proof door (42) comprises two door plates (421), and the two door plates (421) move towards each other to close the discharge end of the cutting box (44).

7. A roll paper cutting apparatus according to claim 5, characterized in that a displacement sensor (412) is mounted to the lower end of the first dust-proof door (41) for detecting the distance between the lower end face of the first dust-proof door (41) and the roll paper circumferential side face.

8. A roll paper cutting device according to claim 3, characterized in that the roll paper cutting device further comprises a feeding mechanism (3), the feeding mechanism (3) is arranged at the feeding end of the conveying mechanism (5), the feeding mechanism (3) comprises a feeding hopper (31), a feeding base (32) and a feeding driving member (33), the feeding hopper (31) is provided with a circular arc groove (311) for loading roll paper, two ends of the feeding base (32) are respectively hinged with the feeding hopper (31) and one end of the feeding driving member (33), the output end of the feeding driving member (33) is hinged with the feeding hopper (31) and can drive the feeding hopper (31) to rotate around the hinged position of the feeding base (32) to push the roll paper onto the conveying mechanism (5).

9. A roll paper cutting device according to claim 8, characterized in that it further comprises a blanking mechanism (6) arranged at the blanking end of the conveying mechanism (5), said blanking mechanism (6) comprising a blanking frame (61), a blanking frame base (62) and a blanking frame driving member (63), the upper and lower ends of the blanking frame (61) are respectively hinged with the blanking frame driving member (63) and the blanking frame base (62), and the blanking frame driving member (63) drives the blanking frame (61) to rotate around the hinged position of the blanking frame base (62) to push the cut roll paper out of the conveying mechanism (5).

10. A roll paper cutting apparatus according to claim 9, characterized in that the feeding end of the conveying mechanism (5) is provided with the blanking mechanism (6), the blanking frame (61) and the feeding mechanism (3) are symmetrically provided on both sides of the conveying mechanism (5), and the blanking frame (61) is used for preventing roll paper loaded by the feeding hopper (31) from falling from the blanking frame (61) side.

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