CN215040783U

CN215040783U - Automatic edge curling and cutting machine for paper tubes

Info

Publication number: CN215040783U
Application number: CN202022948660.6U
Authority: CN
Inventors: 朱瑞平
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-12-07
Anticipated expiration: 2030-12-11

Abstract

The utility model discloses an automatic curling cutting machine for paper tubes, which comprises a frame, a curling mechanism, a conveying mechanism and a cutting mechanism; the edge curling mechanism is arranged on the frame and comprises a processing table and an edge curling device; the hemming device is characterized in that the two hemming dies are rotatably arranged on the support, the rotation directions of the hemming dies of the two hemming devices are opposite, one end faces of the two hemming dies are both concavely provided with processing grooves, and inclined planes are arranged on the bottom faces of the processing grooves at intervals. Through being provided with turn-up mechanism, turn-up mechanism is including processing platform and two turn-up devices, and the turn-up mould rotationally sets up on the support to and the equal concave processing groove towards the processing platform that is equipped with of a terminal surface of two turn-up moulds, processing tank bottom surface interval is provided with the inclined plane, not only can replace manual operation, saves the cost of labor, and machining efficiency obviously improves moreover, and the turn-up quality of paper tube is also more stable simultaneously, can satisfy the demand on the production.

Description

Automatic edge curling and cutting machine for paper tubes

Technical Field

The utility model belongs to the technical field of the paper tube processing technique and specifically relates to indicate an automatic turn-up cutting machine of paper tube.

Background

The paper tube is generally a tubular object processed from paper, and most paper tubes are spiral paper tubes and seamless paper tubes. In daily life, paper tubes are used in various aspects, and according to different uses of the paper tubes, the paper tubes need to be subjected to processing processes such as curling and cutting.

The existing paper tube needs to be manually curled by a tool when being curled, so that the working efficiency is low, the labor cost is high, meanwhile, the quality of the curled edge is unstable, and the production requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses to the disappearance that prior art exists, its main objective provides an automatic turn-up cutting machine of paper tube, and it can effectively solve the problem that production efficiency is slow, the processing cost is high, the turn-up quality is unstable and can't satisfy the production demand among the current paper tube course of working.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an automatic paper tube curling and cutting machine comprises a frame, a curling mechanism, a conveying mechanism and a cutting mechanism; the curling mechanism is arranged on the frame and comprises a processing table and a curling device, the processing table is movably arranged on the frame up and down, the processing table is driven by the first driving mechanism to move up and down, and a fixing groove for placing a paper tube is arranged on the processing table; the two hemming devices are symmetrically arranged on the left side and the right side of the processing table, the two hemming devices can be movably arranged on the rack left and right, the hemming devices are driven by a second driving mechanism to move left and right, each hemming device comprises a support, a hemming die and a third driving mechanism, the support can be movably arranged on the rack left and right, the hemming die can be rotatably arranged on the support, the third driving mechanism is arranged on the support and drives the hemming die to rotate, the rotation directions of the hemming dies of the two hemming devices are opposite, one end faces of the two hemming dies are concavely provided with processing grooves facing the processing table, and inclined planes are arranged at intervals on the bottom faces of the processing grooves; the conveying mechanism is arranged on the frame, and the input end of the conveying mechanism is positioned beside the processing table; the cutting mechanism is arranged on the frame and is positioned beside the output end side of the conveying mechanism.

Preferably, the periphery of the side edge of the hemming die is provided with a plurality of processing holes inwards, the processing holes are communicated with the processing grooves, each processing hole is internally provided with a processing pin, and the processing pin partially leaks out of the bottom surfaces of the processing grooves to form the inclined surfaces.

Preferably, the processing pin is rotatably arranged in the processing hole, the end face of the hemming die is provided with a plurality of fixing holes, the fixing holes are communicated with the processing hole and distributed on the periphery of the processing groove, and fixing pins for fixing the processing pin are arranged in the fixing holes.

As a preferable scheme, the curling mechanism further comprises a fixing block, the fixing block is movably arranged on the frame up and down and is positioned right above the processing table, the fixing block is driven by the fourth driving mechanism to move up and down, and the fixing block can be matched with the fixing groove to fix the paper tube.

As a preferable scheme, the conveying mechanism is two obliquely arranged conveying frames, the two conveying frames form a conveying groove together, and the input ends of the two conveying frames are both positioned right below the processing table.

As a preferable scheme, the conveying mechanism is provided with a first discharging rod, the first discharging rod can be movably arranged on the rack up and down and is positioned at the output end of the conveying mechanism, the first discharging rod is driven by a fifth driving mechanism to move up and down, and the lower end of the first discharging rod is provided with a first inductor for inducing the paper tubes; the two sides of the output end of the conveying mechanism are respectively provided with a first air cylinder, and the output ends of the two first air cylinders can inwards extend into the output end of the conveying mechanism.

As a preferred scheme, the cutting mechanism comprises a material placing table, a clamping device, a cutting device, a fixing plate and a material pressing rod; the discharging table is arranged on the rack and corresponds to the output end of the conveying mechanism in position, two discharging columns capable of freely rotating are arranged on the discharging table, and a discharging groove is formed between the two discharging columns; the clamping device can be movably arranged on the rack left and right and is positioned beside the discharging table, the clamping device is driven by the sixth driving mechanism to move left and right, the clamping device comprises a bracket, a clamping die and a seventh driving mechanism, the bracket can be movably arranged on the rack left and right, the clamping die is rotatably arranged on the bracket, a cutting groove is formed in the clamping die, and the seventh driving mechanism is arranged on the bracket and drives the clamping die to rotate; the cutting device is provided with a cutter disc in the vertical direction, the cutter disc is movably arranged on the rack up and down and is positioned above the clamping device, and the cutter disc is driven by the eighth driving mechanism to move up and down; the fixed plate is fixed on the frame and positioned beside the other side of the discharging platform; the material pressing rod can be movably arranged on the rack up and down and is positioned right above the material placing platform, and the material pressing rod is driven by the ninth driving mechanism to move up and down.

As a preferred scheme, the paper tube detection device further comprises a feeding mechanism, wherein the feeding mechanism is fixed on the rack and located in front of the curling mechanism, the feeding mechanism comprises a feeding frame and a discharging rod, the feeding frame is provided with a feeding groove, the feeding groove is obliquely arranged, the output end of the feeding groove is located beside the side of the processing table, the discharging rod can be movably arranged right above the output end of the feeding groove up and down, the discharging rod is driven by a tenth driving mechanism to move up and down, and a second sensor for detecting a paper tube is arranged at the lower end of the discharging rod; the feeding mechanism is also provided with two second cylinders which are fixed on the feeding frame and positioned on two sides of the output end of the feeding groove, and the output ends of the two second drives can inwards extend into the feeding groove.

As a preferable scheme, a discharging disc is arranged right below the cutting mechanism.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:

through being provided with turn-up mechanism, turn-up mechanism is including processing platform and two turn-up devices, and all be provided with a turn-up mould on each turn-up device, the turn-up mould rotationally sets up on the support, and the rotation opposite direction of the turn-up mould of two turn-up devices, and the terminal surface of two turn-up moulds of cooperation all is concave to be equipped with the processing groove towards the processing platform, processing groove bottom surface interval is provided with the inclined plane, the frictional force of inclined plane and paper tube terminal surface comes to carry out the turn-up processing to the paper tube when rotating, not only can replace manual operation, save the cost of labor, and machining efficiency obviously improves, the turn-up quality of paper tube is also more stable simultaneously, can satisfy the demand on the production.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a schematic perspective view of a preferred embodiment of the present invention;

FIG. 2 is a partially assembled schematic view of a preferred embodiment of the present invention;

FIG. 3 is a partial assembly view of another aspect of the preferred embodiment of the present invention;

FIG. 4 is a schematic partial cross-sectional view of a preferred embodiment of the present invention;

FIG. 5 is a schematic perspective view of a curling mechanism according to a preferred embodiment of the present invention;

FIG. 6 is a schematic perspective view of a curling die according to a preferred embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of a crimping die according to a preferred embodiment of the present invention;

fig. 8 is a schematic perspective view of a clamping mold according to a preferred embodiment of the present invention.

The attached drawings indicate the following:

10. frame 20, curling mechanism

201. Fixing groove 202 and processing groove

203. Machining hole 204 and fixing hole

21. Processing table 22 and hemming device

221. Support 222 and curling die

223. Inclined surface 23, processing pin

24. Fixed block 30 and conveying mechanism

301. Conveying trough 31 and conveying frame

32. First discharge rod 321 and first sensor

40. Cutting mechanism 401, chute

402. Cutting groove 41 and discharging table

411. Discharge column 42, clamping device

421. Support 422 and clamping die

43. Cutting device 431 and cutter head

44. Fixed plate 45 and material pressing rod

46. Discharge tray 51 and first drive mechanism

52. Second drive mechanism 53 and third drive mechanism

54. Fourth and

fifth driving mechanisms

55 and 55

56. Sixth and

seventh driving mechanisms

57 and 57

58. Eighth drive mechanism 59 and ninth drive mechanism

501. Tenth drive mechanism 60, paper tube

70. Feed mechanism 701, material loading groove

71. Feeding rack 72 and second feeding rod

721. Second sensor 81, first Cylinder

82. A second cylinder.

Detailed Description

Referring to fig. 1 to 8, a specific structure of a preferred embodiment of the present invention is shown, which includes a frame 10, a curling mechanism 20, a conveying mechanism 30 and a cutting mechanism 40.

The hemming mechanism 20 is arranged on the frame 10, the hemming mechanism 20 comprises a processing table 21 and a hemming device 22, the processing table 21 is movably arranged on the frame 10 up and down, the processing table 21 is driven by a first driving mechanism 51 to move up and down, and a fixing groove 201 for placing the paper tube 60 is arranged on the processing table 21; the two curling devices 22 are symmetrically arranged at the left side and the right side of the processing table 21, the two curling devices 22 can be movably arranged on the frame 10 left and right, the curling devices 22 are driven by the second driving mechanism 52 to move left and right, each curling device 22 comprises a support 221, a curling die 222 and a third driving mechanism 53, the support 221 can be movably arranged on the frame 10 left and right, the curling die 222 can be rotatably arranged on the support 221, the third driving mechanism 53 is arranged on the support 221 and drives the curling die 222 to rotate, the rotating directions of the curling dies 222 of the two curling devices 22 are opposite, one end faces of the two curling dies 222 are concavely provided with processing grooves 202 facing the processing table 21, inclined faces 223 are arranged at intervals on the bottom faces of the processing grooves 202, and the paper tube 60 is curled through the friction between the inclined faces 223 and the end faces of the paper tube 60; in this embodiment, the side edge periphery of the hemming mold 222 is recessed with a plurality of processing holes 203, the processing holes 203 are communicated with the processing groove 202, a processing pin 23 is disposed in each processing hole 203, and a portion of the processing pin 23 leaks out of the bottom surface of the processing groove 202 to form the inclined surface 223; the processing pin 23 is rotatably arranged in the processing hole 203, the inclined angle of the inclined surface 223 can be adjusted by rotating the processing pin 23, so that a better hemming effect is achieved, a plurality of fixing holes 204 are formed in the end surface of the hemming die 222, the fixing holes 204 are communicated with the processing hole 203 and distributed on the periphery of the processing groove 202, and fixing pins (not shown) for fixing the processing pin 23 are arranged in the fixing holes 204; the curling mechanism 20 further comprises a fixing block 24, the fixing block 24 is movably arranged on the frame 10 up and down and is located right above the processing table 21, the fixing block 24 is driven by the fourth driving mechanism 54 to move up and down, and the fixing block 24 can be matched with the fixing groove 201 to fix the paper tube, so that the curling process is more stable, and the curling effect is better.

The conveying mechanism 30 is arranged on the frame 10, and the input end of the conveying mechanism 30 is positioned beside the processing table 21; in this embodiment, the conveying mechanism 30 is two obliquely arranged conveying frames 31, the curled paper tube 60 is conveyed from the input end to the output end by gravity, the two conveying frames 31 together form a conveying groove 301, and the input ends of the two conveying frames 31 are both located right below the processing table 21; the conveying mechanism 30 is provided with a first discharging rod 32, the first discharging rod 32 is movably arranged on the frame 10 up and down and is positioned at the output end of the conveying mechanism 30, the first discharging rod 32 is driven by a fifth driving mechanism 55 to move up and down, and the lower end of the first discharging rod 32 is provided with a first sensor 321 for sensing the paper tube 60; the two sides of the output end of the conveying mechanism 30 are respectively provided with a first air cylinder 81, and the output ends of the two first air cylinders 81 can extend inwards into the output end of the conveying mechanism 30.

The cutting mechanism 40 is arranged on the frame 10 and is positioned beside the output end side of the conveying mechanism 30; in this embodiment, the cutting mechanism 40 includes a material placing table 41, a clamping device 42, a cutting device 43, a fixing plate 44 and a material pressing rod 45; the discharging table 41 is arranged on the frame 10 and corresponds to the output end position of the conveying mechanism 30, two discharging columns 411 which can rotate freely are arranged on the discharging table 41, and a discharging groove 401 is formed between the two discharging columns 411; the clamping device 42 can be movably arranged on the rack 10 left and right and is positioned beside the discharging table 41, the clamping device 42 is driven by the sixth driving mechanism 56 to move left and right, the clamping device 42 comprises a support 421, a clamping mold 422 and a seventh driving mechanism 57, the support 421 can be movably arranged on the rack 10 left and right, the clamping mold 422 can be rotatably arranged on the support 421, the clamping mold 422 is provided with a cutting groove 402, and the seventh driving mechanism 57 is arranged on the support 421 and drives the clamping mold 422 to rotate; the cutting device 43 has a vertical cutter 431, the cutter 431 is movably disposed on the frame 10 above the holding device 42, and the cutter 431 is driven by the eighth driving mechanism 58 to move up and down; the fixed plate 44 is fixed on the frame 10 and is positioned beside the other side of the material placing table 41; the material pressing rod 45 is movably arranged on the frame 10 up and down and is positioned right above the material placing table 41, and the material pressing rod 45 is driven by the ninth driving mechanism 59 to move up and down; a discharge tray 46 is disposed directly below the cutting mechanism 40.

Further, the device also comprises a feeding mechanism 70, the feeding mechanism 70 is fixed on the frame 10 and located in front of the curling mechanism 20, the feeding mechanism 70 comprises a feeding frame 71 and a discharging rod 72, the feeding frame 71 is provided with a feeding groove 701, the feeding groove 701 is obliquely arranged, the output end of the feeding groove 701 is located beside the processing table 21, the discharging rod 72 is movably arranged right above the output end of the feeding groove 701 up and down, the discharging rod 72 is driven by the tenth driving mechanism 501 to move up and down, and the lower end of the discharging rod 72 is provided with a second sensor 721 for detecting the paper tube 60; the feeding mechanism 70 is further provided with two second cylinders 82, the two second cylinders 82 are fixed on the feeding frame 71 and located on two sides of the output end of the feeding groove 701, and the output ends of the two second cylinders 82 can extend into the feeding groove 701 inwards.

Detailed description of the working principle of the embodiment, when working, the automatic paper tube curling cutter is started, then the paper tube 60 to be processed is placed in the feeding chute 701, the paper tube 60 is conveyed to the output end of the feeding chute 701 under the action of gravity, the second material blocking rod 72 blocks the paper tube 60 at the lowest end, the output ends of the two second air cylinders 82 extend inwards into the feeding chute 701 and are inserted into the penultimate paper tube 60 to fix the penultimate paper tube 60, after the second sensor 721 senses the paper tube 60, the first driving mechanism 51 drives the processing table 21 to move downwards, so that the height of the processing table 21 is lower than that of the output end of the feeding chute 701, the tenth driving mechanism 501 drives the second material discharging rod 72 to move upwards, so that the last paper tube 60 rolls into the fixing groove 201 under the action of gravity, then the tenth driving mechanism 501 drives the second material discharging rod 72 to move downwards, the output ends of the two second air cylinders 82 extend outwards out of the feeding chute 701, the paper tube 60 moves towards the output end and is blocked by the second discharging rod 72, the output ends of the two second air cylinders 82 extend into the feeding groove 701 to fix the paper tube 60, so that only one paper tube 60 falls into the fixed groove 201 each time, then the first driving mechanism 51 drives the processing table 21 to move upwards to a specific position, the second driving mechanism 52 drives the two curling devices 22 to move left and right, the processing grooves 202 of the two curling dies 222 are respectively matched with two end surfaces of the paper tube 60, after the matching is finished, the fourth driving mechanism 54 drives the fixed block 24 to move downwards, so that the fixed block is matched with the fixed groove 201 and fixes the paper tube 60, then the third driving mechanism 53 respectively drives the two curling dies 222 to rotate along different directions, the curling of the paper tube 60 can be finished by friction between the inclined surface 223 and the end surface of the paper tube 60 in the rotating process, after the curling is finished, the second driving mechanism 52 drives the two curling devices 22 to move left and right and separate from the finished curled paper tube 60, meanwhile, the fourth driving mechanism 54 drives the fixing block 24 to move upwards, at this time, the curling work of the paper tube 60 is completed, then the first driving mechanism 51 drives the processing table 21 to move downwards, so that the paper tube 60 contacts the input end of the conveying mechanism 30 and moves backwards under the action of gravity, when the paper tube 60 moves to the output end of the conveying mechanism 30, the paper tube 60 is blocked by the first discharging rod 32, at the same time, the output end of the first air cylinder 81 extends inwards into the output end of the conveying mechanism 30 and extends into the penultimate paper tube 60, so as to fix the penultimate paper tube 60, at this time, the first sensor 321 senses the existence of the paper tube 60, then the first stop rod 32 moves upwards by the fifth driving mechanism 55, so that the curled paper tube 60 is conveyed to the discharging table 41, then the fifth driving mechanism 55 drives the first stop rod 32 to move downwards, and the two first air cylinders 81 also extend outwards out of the output end of the conveying mechanism 30, the paper tube continues to move backwards and is stopped by the first stop lever 32, and then the output ends of the two first cylinders 81 extend into the output end of the conveying mechanism 30 to fix the paper tube 60, so that only one paper tube 60 is conveyed to the discharging table 41 at each time, when the paper tube 60 moves to the discharging groove 104 on the discharging table 41, the sixth driving mechanism 56 drives the clamping mold 422 to move left and right, and one end of the clamping mold 422 penetrates through the paper tube 60 and abuts against the fixed plate 44, meanwhile, the ninth driving mechanism 59 drives the pressing rod 45 to move downwards and abut against the paper tube 60 to fix the paper tube 60, then the seventh driving mechanism 57 drives the clamping mold 422 to rotate, the clamping mold 422 drives the paper tube 60 to rotate on the discharging table 41, meanwhile, the eighth driving mechanism 58 drives the cutter head 431 to move downwards, the cutter head 431 extends into the cutting groove 402 and cuts the paper tube 60, after cutting, the eighth driving mechanism 58 drives the cutter 431 to move upwards, then the ninth driving mechanism 59 drives the material pressing rod 45 to move upwards, then the sixth driving mechanism 56 draws the clamping die 422 out of the paper tube 60, finally the cut paper tube is sent out from the material discharging disc 46, and then the steps are sequentially repeated to perform hemming cutting processing on the next paper tube 60.

The utility model discloses a design focus lies in: through being provided with turn-up mechanism, turn-up mechanism is including processing platform and two turn-up devices, and all be provided with a turn-up mould on each turn-up device, the turn-up mould rotationally sets up on the support, and the rotation opposite direction of the turn-up mould of two turn-up devices, and the terminal surface of two turn-up moulds of cooperation all is concave to be equipped with the processing groove towards the processing platform, processing groove bottom surface interval is provided with the inclined plane, the frictional force of inclined plane and paper tube terminal surface comes to carry out the turn-up processing to the paper tube when rotating, not only can replace manual operation, save the cost of labor, and machining efficiency obviously improves, the turn-up quality of paper tube is also more stable simultaneously, can satisfy the demand on the production.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides an automatic turn-up cutting machine of paper tube which characterized in that: comprises a frame, a curling mechanism, a conveying mechanism and a cutting mechanism; the curling mechanism is arranged on the frame and comprises a processing table and a curling device, the processing table is movably arranged on the frame up and down, the processing table is driven by the first driving mechanism to move up and down, and a fixing groove for placing a paper tube is arranged on the processing table; the two hemming devices are symmetrically arranged on the left side and the right side of the processing table, the two hemming devices can be movably arranged on the rack left and right, the hemming devices are driven by a second driving mechanism to move left and right, each hemming device comprises a support, a hemming die and a third driving mechanism, the support can be movably arranged on the rack left and right, the hemming die can be rotatably arranged on the support, the third driving mechanism is arranged on the support and drives the hemming die to rotate, the rotation directions of the hemming dies of the two hemming devices are opposite, one end faces of the two hemming dies are concavely provided with processing grooves facing the processing table, and inclined planes are arranged at intervals on the bottom faces of the processing grooves; the conveying mechanism is arranged on the frame, and the input end of the conveying mechanism is positioned beside the processing table; the cutting mechanism is arranged on the frame and is positioned beside the output end side of the conveying mechanism.

2. The automatic paper tube hemming cutter according to claim 1, wherein: the periphery of the side edge of the hemming die is inwards provided with a plurality of processing holes, the processing holes are communicated with the processing grooves, each processing hole is internally provided with a processing pin, and the processing pin partially leaks out of the bottom surfaces of the processing grooves to form the inclined planes.

3. The automatic paper tube hemming cutter according to claim 2, wherein: the processing pin is rotatably arranged in the processing hole, the end face of the curling die is provided with a plurality of fixing holes, the fixing holes are communicated with the processing hole and distributed on the periphery of the processing groove, and fixing pins for fixing the processing pin are arranged in the fixing holes.

4. The automatic paper tube hemming cutter according to claim 1, wherein: the edge curling mechanism further comprises a fixing block, the fixing block is movably arranged on the rack up and down and is positioned right above the processing table, the fixing block is driven by the fourth driving mechanism to move up and down, and the fixing block can be matched with the fixing groove to fix the paper tube.

5. The automatic paper tube hemming cutter according to claim 1, wherein: the conveying mechanism is two conveying frames which are obliquely arranged, the two conveying frames jointly form a conveying groove, and the input ends of the two conveying frames are located right below the processing table.

6. The automatic paper tube hemming cutter according to claim 1, wherein: the conveying mechanism is provided with a first discharging rod, the first discharging rod can be movably arranged on the rack up and down and is positioned at the output end of the conveying mechanism, the first discharging rod is driven by a fifth driving mechanism to move up and down, and a first inductor for inducing the paper tubes is arranged at the lower end of the first discharging rod; the two sides of the output end of the conveying mechanism are respectively provided with a first air cylinder, and the output ends of the two first air cylinders can inwards extend into the output end of the conveying mechanism.

7. The automatic paper tube hemming cutter according to claim 1, wherein: the cutting mechanism comprises a discharging table, a clamping device, a cutting device, a fixing plate and a material pressing rod; the discharging table is arranged on the rack and corresponds to the output end of the conveying mechanism in position, two discharging columns capable of freely rotating are arranged on the discharging table, and a discharging groove is formed between the two discharging columns; the clamping device can be movably arranged on the rack left and right and is positioned beside the discharging table, the clamping device is driven by the sixth driving mechanism to move left and right, the clamping device comprises a bracket, a clamping die and a seventh driving mechanism, the bracket can be movably arranged on the rack left and right, the clamping die is rotatably arranged on the bracket, a cutting groove is formed in the clamping die, and the seventh driving mechanism is arranged on the bracket and drives the clamping die to rotate; the cutting device is provided with a cutter disc in the vertical direction, the cutter disc is movably arranged on the rack up and down and is positioned above the clamping device, and the cutter disc is driven by the eighth driving mechanism to move up and down; the fixed plate is fixed on the frame and positioned beside the other side of the discharging platform; the material pressing rod can be movably arranged on the rack up and down and is positioned right above the material placing platform, and the material pressing rod is driven by the ninth driving mechanism to move up and down.

8. The automatic paper tube hemming cutter according to claim 1, wherein: the paper tube detection device is characterized by also comprising a feeding mechanism, wherein the feeding mechanism is fixed on the rack and positioned in front of the curling mechanism, the feeding mechanism comprises a feeding frame and a discharging rod, the feeding frame is provided with a feeding groove, the feeding groove is obliquely arranged, the output end of the feeding groove is positioned beside the side of the processing table, the discharging rod can be movably arranged right above the output end of the feeding groove up and down, the discharging rod is driven by a tenth driving mechanism to move up and down, and the lower end of the discharging rod is provided with a second sensor for detecting a paper tube; the feeding mechanism is also provided with two second cylinders which are fixed on the feeding frame and positioned on two sides of the output end of the feeding groove, and the output ends of the two second drives can inwards extend into the feeding groove.

9. The automatic paper tube hemming cutter according to claim 1, wherein: a discharging disc is arranged right below the cutting mechanism.