CN217920592U

CN217920592U - Shaftless paper feeding and unwinding device

Info

Publication number: CN217920592U
Application number: CN202220997854.1U
Authority: CN
Inventors: 朱东
Original assignee: Sunhope Packaging Machinery Zhenjiang Co ltd
Current assignee: Sunhope Packaging Machinery Zhenjiang Co ltd
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-11-29
Anticipated expiration: 2032-04-26

Abstract

The invention discloses a shaftless paper feeding and unwinding device. The paper feeding mechanism comprises a paper feeding mechanism, a lifting mechanism and a tension control mechanism, the paper feeding mechanism further comprises a pair of clamping devices and a swing arm adjusting device, the clamping devices and the swing arm adjusting device are installed at the front ends of the pair of paper roll swing arms, the distance between the pair of paper roll swing arms is adjusted through the swing arm adjusting device, so that the clamping devices clamp the paper roll, the paper roll lifting mechanism can lift the paper feeding mechanism, and therefore paper in the paper roll can be unreeled under the tension of the paper controlled by the tension control mechanism. The advantages are that: not only the paper roll can be quickly and conveniently packed, but also the packing efficiency is high, and the labor intensity is greatly reduced. The tension control mechanism is ingeniously matched with the paper roll swing arm, so that the tension of paper is stable, and the production quality is improved. The problem of off tracking in the production process is effectively avoided, and the production quality is further improved.

Description

Shaftless paper feeding and unwinding device

Technical Field

The invention relates to packaging printing and paper bag manufacturing equipment, in particular to a shaftless paper feeding and unwinding device.

Background

In the prior art, the conventional unreeling device for manufacturing packaging and printing paper bags adopts integrated equipment, the equipment is provided with a paper feeding shaft for feeding paper, for the paper feeding operation of the paper bags, an inflatable shaft (the paper feeding shaft) needs to be placed into a material rolling core cylinder in a manual mode, however, the weight of the inflatable shaft is inevitably large due to the large-format coil material, so that the conventional method needs two persons to lift up for operation, the loading is difficult, the loading time is long, the labor intensity of workers is high, the equipment is stopped for a long time due to the installation time, the yield is seriously influenced, in addition, the paper feeding part is unreasonable in design, the paper tension is unstable, and the deviation problem is easy to occur.

Disclosure of Invention

The invention aims to solve the technical problem of providing a shaftless paper unwinding device which can reduce the loading difficulty, shorten the loading time and reduce the labor intensity, can ensure the stable tension of paper and can correct deviation.

In order to solve the technical problem, the shaftless paper unreeling device comprises a paper feeding mechanism with a pair of paper roll swing arms, a lifting mechanism used for driving the paper feeding mechanism to lift, a tension control mechanism used for controlling paper tension, a pair of clamping devices used for clamping paper rolls and arranged at the front ends of the paper roll swing arms, and a swing arm adjusting device used for adjusting the distance between the paper roll swing arms, wherein the distance between the paper roll swing arms is adjusted through the swing arm adjusting device so that the clamping devices clamp the paper rolls, and the paper feeding mechanism can be lifted through the lifting mechanism so that the paper in the paper rolls is controlled by the tension control mechanism to realize the paper unreeling operation.

The pair of paper roll swing arms are installed on a main shaft capable of rotating, each swing arm adjusting device comprises a speed reducer installed at the center of the main shaft, a lead screw installed in a matched mode with the speed reducer and arranged in parallel with the main shaft, and two nut seats installed on the lead screw, and the paper roll swing arms are installed between the nut seats and the main shaft respectively and can drive the paper roll swing arms to move back and forth along the axial direction of the main shaft through the driving of the speed reducers.

Two linear slide rails are mounted on the main shaft, two slider connecting plates with sliders are mounted on the paper roll swing arm, and the two sliders are respectively mounted with the two linear slide rails in a matched mode and can enable the paper roll swing arm to reciprocate along the linear slide rails.

The lifting mechanism comprises a lifter installed on the lifting base and a lifting swing arm installed on the main shaft, the lifting swing arm is hinged to the lifter, and the lifting swing arm can drive the main shaft to rotate through lifting of the lifter, so that the paper roll swing arm swings to complete up-and-down operation of paper rolls.

And a brake for braking the clamping device is installed on the paper roll swing arm.

The clamping device comprises a mandrel arranged on the paper roll swing arm and a tensioning sleeve arranged on the mandrel, and the brake is matched with the mandrel through a transmission mechanism so as to control the mandrel.

The transmission mechanism comprises a driving gear arranged on the brake and a driven gear arranged on the mandrel and meshed with the driving gear, and the mandrel is rotatably arranged on the paper roll swing arm.

The tension control mechanism comprises a support, two supporting rollers, a force measuring device and a detection roller, wherein the supporting rollers are located at the front end and the rear end of the support, the force measuring device is installed in the middle of the support, the detection roller is installed in a matched mode with the force measuring device, the force measuring device is electrically connected with the brake, and the paper can be fed back to the brake through the tension change of the paper through the force measuring device after passing through the detection roller so as to achieve the purpose of controlling the paper tension.

The main shaft is installed between two wallboards, and a connecting frame and a pull rod are further installed between the two wallboards.

And a deviation correcting device capable of driving the two wallboards to walk along the axial direction of the main shaft so as to realize deviation correction of the paper is further arranged below the rear parts of the two wallboards.

The deviation correcting device comprises two detection light holes arranged at the rear of the tension control mechanism and used for detecting whether the paper deviates or not, and a pushing device arranged at the bottom of the wallboard and capable of pushing the wallboard to move, wherein the detection light holes can detect the deviation position of the paper and can push the two wallboards to move to achieve the deviation correcting purpose.

The utility model has the advantages that:

(1) Through the last paper mechanism that sets up by the elevating system drive action, be arranged in the last paper mechanism a pair of clamping device of a pair of scroll swing arm front end and be arranged in adjusting this swing arm adjusting device to the distance between the scroll swing arm, thereby can directly adjust this distance between the scroll swing arm through swing arm adjusting device and make clamping device carry out the centre gripping to the scroll from this, no longer need the manual work to go up the roll operation, not only the scroll is packed into swiftly conveniently, it is efficient to pack into, effectively solved because of the installation time is of a specified duration and leads to equipment by down time long, seriously influence the problem of output, and intensity of labour has still been greatly reduced.

(2) Through the tension control mechanism which is arranged and matched with the paper roll swing arm, paper in the paper roll can be unreeled by controlling the tension of the paper through the tension control mechanism, especially, the tension control mechanism is skillfully matched with the paper roll swing arm to enable the tension of the paper to be stable, and the production quality is improved.

(3) Through the deviation correcting device, the two wallboards can be driven to walk along the axial direction of the main shaft so as to realize deviation correction of paper, the problem of deviation in the production process is effectively avoided, and the production quality is further improved.

Drawings

Fig. 1 is a schematic front view of a shaftless paper unwinding device according to the present invention;

FIG. 2 is a schematic view of a partial structure of the swing arm adjustment apparatus of the present invention;

FIG. 3 is a schematic side view of the swing arm adjustment device of the present invention;

FIG. 4 is a schematic top view of the paper feeding mechanism of the present invention;

FIG. 5 is a schematic view of the mounting state of the swing arm of the paper roll in the present invention;

fig. 6 is a schematic structural view of the lifting mechanism of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and the detailed description.

As shown in the figure, the shaftless paper feeding and unwinding device of the invention comprises a paper feeding mechanism 200, a lifting mechanism 300 for driving the paper feeding mechanism 200 to lift and a tension control mechanism 400 for controlling the tension of paper, and as can be seen from the figure, the paper feeding mechanism 200 comprises a pair of paper roll swing arms 205 arranged on a main shaft 201, two clamping devices respectively arranged on the two paper roll swing arms 205, a swing arm adjusting device for adjusting the distance between the pair of paper roll swing arms 205 and a brake 206 arranged on the paper roll swing arms 205 for braking the clamping devices, wherein the main shaft 201 is arranged between the two wall plates 101 through a fourth bearing seat 202 and a fourth bearing 203, a connecting frame 103 and two pull rods 104 are also arranged between the two wall plates 101 for improving the installation stability, in addition, the clamping devices comprise a mandrel 208 arranged on the paper roll swing arms 205 and a tensioning sleeve 212 arranged on the mandrel 208, the paper roll swing arm adjusting device comprises a speed reducer 213 arranged at the central position of a main shaft 201, a screw 216 arranged in parallel with the main shaft 201 and two nut seats 218 arranged on the screw 216, wherein the screw 216 is provided with a nut 217, for the specific installation structure, a connecting seat 219 and a support plate 220 are arranged at the central position of the main shaft 201, the speed reducer 213 is arranged on the connecting seat 219, the speed reducer 213 is respectively connected with the screw 216 through a shaft screw rod connecting sleeve 215, one side of the screw 216 is a right-handed thread, the other side is a left-handed thread, the pair of paper roll swing arms 205 are respectively arranged between the nut seats 218 and the main shaft 201 and can drive the paper roll swing arms 205 to relatively reciprocate along the axial direction of the main shaft 201 by the driving of the speed reducer 213 Move, can adjust the distance between two scroll swing arms 205 through two scroll swing arms 205's relative reciprocating motion to make two clamping device carry out the centre gripping to the scroll, the scroll is by the centre gripping back, will go up paper mechanism 200 through elevating system 300 and lift to the settlement position and then make the paper in the scroll realize the operation of unreeling of paper through the tension of tension control mechanism 400 control paper.

Further, the transmission mechanism comprises a driving gear 207 mounted on the brake 206 and a driven gear 209 mounted on the spindle 208 and engaged with the driving gear 207, and the spindle 208 is supported and mounted on the paper roll swing arm 205 through a bearing 211 and a bearing seat 210 so as to drive the tensioning sleeve 212 to rotate.

Still further, for the installation between paper roll swing arm 205 and spindle 201, as shown in fig. 5, two linear slide rails 221 arranged at 90 degrees (right angle) in the end surface direction may be installed on spindle 201, linear slide rails 221 are arranged along the spindle axial direction, two slider connecting plates 222 are installed on paper roll swing arm 205, a slider 204 for cooperating with linear slide rail 221 is fixedly installed on both slider connecting plates 222, and after two sliders 204 are respectively mounted in cooperation with two linear slide rails 221, paper roll swing arm 205 may reciprocate along linear slide rail 221, thereby improving the stability of use, in addition, nut seat 218 is installed on slider connecting plate 204, thereby realizing the fixed installation of paper roll swing arm 205 and nut seat 218.

Still further, the lifting mechanism 300 includes a lifting base 302, a lifting machine 301 mounted on the lifting base 302, and a lifting swing arm 214 mounted on the spindle 201, wherein the lifting swing arm 214 is hinged to the lifting machine 301, and as shown in fig. 6, for a specific mounting structure, the lifting base 302 is mounted on the wall plate 101 through a mounting shaft 306 by using a second bearing seat 303, a lock nut 304, a spacer 305, and a second bearing 307, so as to be rotatable relative to the wall plate, and the lifting base 302 is located outside the wall plate 101, so that the lifting swing arm 214 can drive the spindle 201 to rotate through the lifting of the lifting machine 301, and the paper roll swing arm 205 swings to complete the paper roll up-and-down operation, and the lifting machine 301 includes a telescopic rod capable of being telescopic, and the lifting distance can be adjusted through the telescopic rod, thereby ensuring the swinging position of the paper roll swing arm 205.

Still further, the tension control mechanism 400 includes a bracket 402, two support rollers 403 located at the front and rear ends of the bracket 402, a force measuring device 401 installed in the middle of the bracket, and a detection roller 404 installed in cooperation with the force measuring device, as can be seen from fig. 1, the bracket 402 is installed on two pull rods 104, the support rollers 403 are installed on the pull rods 104 by using a third bearing, the force measuring device 401 is electrically connected with a brake 206, and the paper can feed back the tension change of the paper to the brake 206 through the force measuring device after passing through the detection roller 404, so as to achieve the purpose of controlling the tension of the paper.

Still further, a deviation rectifying device 500 capable of driving the two wall plates 101 to travel along the axial direction of the main shaft to realize deviation rectification of the paper can be further arranged below the rear portions of the two wall plates 101, as can be seen from fig. 1, the deviation rectifying device 500 comprises a detection light eye 508 arranged behind the tension control mechanism 400 and used for detecting whether the paper deviates, a bottom plate arranged at the bottom of the two wall plates 101 and a pushing device capable of pushing the two wall plates 101 to move, the deviation rectifying position of the paper can be detected through the detection light eye 508, the two wall plates 101 can be pushed to move through the pushing device, the paper is ensured not to deviate, and the purpose of deviation rectification is achieved.

It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.

Claims

1. The utility model provides a no epaxial paper unwinding device which characterized in that: the paper feeding mechanism comprises a paper feeding mechanism (200) with a pair of paper roll swing arms (205), a lifting mechanism (300) used for driving the paper feeding mechanism (200) to lift and a tension control mechanism (400) used for controlling paper tension, the paper feeding mechanism (200) further comprises a pair of clamping devices used for clamping paper rolls and installed at the front ends of the paper roll swing arms (205) and a swing arm adjusting device used for adjusting the distance between the paper roll swing arms (205), the pair of clamping devices are used for clamping the paper rolls by adjusting the distance between the paper roll swing arms (205), and the lifting mechanism (300) can lift the paper feeding mechanism (200) so as to enable the paper in the paper rolls to be lifted through the tension control mechanism (400) to control the tension of the paper to achieve the unreeling operation of the paper.

2. The shaftless paper unwinding device of claim 1, wherein: the pair of paper roll swing arms (205) are arranged on a main shaft (201) capable of rotating, the swing arm adjusting device comprises a speed reducer (213) arranged at the center of the main shaft (201), a screw rod (216) which is matched with the speed reducer (213) and arranged in parallel with the main shaft (201), and two nut seats (218) arranged on the screw rod (216), and the pair of paper roll swing arms (205) are respectively arranged between the nut seats (218) and the main shaft (201) and can drive the paper roll swing arms (205) to reciprocate along the axial direction of the main shaft (201) through the driving of the speed reducer (213).

3. The shaftless paper unwinding device of claim 2, wherein: two linear sliding rails (221) are mounted on the main shaft (201), two sliding block connecting plates (222) with sliding blocks (204) are mounted on the paper roll swing arm (205), and the two sliding blocks (204) are respectively mounted with the two linear sliding rails (221) in a matched mode and can enable the paper roll swing arm (205) to reciprocate along the linear sliding rails (221).

4. The shaftless paper unwinding device of claim 2 or 3, wherein: elevating system (300) including installing lift (301) on lift frame (302) and installing lift swing arm (214) on main shaft (201), lift swing arm (214) are articulated with lift (301), through thereby the lift of lift (301) can make lift swing arm (214) drive main shaft (201) and rotate and make scroll swing arm (205) swing accomplish the operation from top to bottom of the scroll.

5. The shaftless paper unwinding device of claim 4, wherein: and a brake (206) for braking the clamping device is arranged on the paper roll swinging arm (205).

6. The shaftless paper unwinding device of claim 5, wherein: the clamping device comprises a mandrel (208) arranged on a paper roll swing arm (205) and a tensioning sleeve (212) arranged on the mandrel (208), and the brake (206) is matched with the mandrel (208) through a transmission mechanism so as to control the mandrel (208).

7. The shaftless paper unwinding device of claim 6, wherein: the transmission mechanism comprises a driving gear (207) arranged on a brake (206) and a driven gear (209) arranged on a mandrel (208) and meshed with the driving gear (207), and the mandrel (208) is rotatably arranged on the paper roll swing arm (205).

8. The shaftless paper unwinding device of claim 5, 6 or 7, wherein: the tension control mechanism (400) comprises a support (402), two supporting rollers (403) located at the front end and the rear end of the support (402), a force measuring device (401) installed in the middle of the support and a detection roller (404) installed in a matched mode with the force measuring device, wherein the force measuring device (401) is electrically connected with a brake (206), and paper can be fed back to the brake (206) through the tension change of the paper after passing through the detection roller (404) through the force measuring device so as to achieve the purpose of controlling the tension of the paper.

9. The shaftless paper unwinding device of claim 8, wherein: the main shaft (201) is installed between the two wall boards (101), and a connecting frame (103) and a pull rod (104) are further installed between the two wall boards (101).

10. The shaftless paper unwinding device of claim 9, wherein: and a deviation rectifying device (500) capable of driving the two wallboards (101) to walk along the axial direction of the main shaft to realize deviation rectification of the paper is further arranged below the rear part of the two wallboards (101).

11. The shaftless paper unwinding device of claim 10, wherein: deviation correcting device (500) are including the detection light eye (508) that the rear setting of tension control mechanism (400) is used for detecting whether the paper off tracking, set up two the bottom plate of wallboard (101) bottom and can promote two the thrust unit that wallboard (101) removed, through detection light eye (508) can detect the paper off tracking position and can pass through thrust unit promotes two blocks of wallboards (101) and removes and reach the purpose of rectifying a deviation.