CN210682843U

CN210682843U - Slitter edge collection device

Info

Publication number: CN210682843U
Application number: CN201921841795.3U
Authority: CN
Inventors: 段义刚
Original assignee: Hangzhou Taidi Packaging Materials Co Ltd
Current assignee: Hangzhou Taidi Packaging Materials Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-06-05
Anticipated expiration: 2029-10-29

Abstract

The utility model relates to a slitter edge collection device, which comprises a frame, a first rotating shaft, a winding frame and a rotating mechanism, wherein the winding frame comprises a first baffle, a second rotating shaft, four winding rollers and a locking mechanism, wherein the second rotating shaft is rotated on the first baffle and is vertical to the first rotating shaft; one end of the first rotating shaft, which penetrates through the first baffle plate, is fixedly sleeved with an installation seat, and a first connecting rod is hinged between each winding roller and the installation seat; the rack is provided with a driving mechanism for driving the first baffle to move towards the mounting seat, and the mounting seat is provided with a first spring for driving the first baffle to move towards the direction far away from the mounting seat. This scheme has saved operator manually operation's work load greatly, has made things convenient for the operator to take off the slitter edge from the wind-up roll, is favorable to improving slitter edge collection device's work efficiency.

Description

Slitter edge collection device

Technical Field

The utility model belongs to the technical field of the technique of galvanized aluminum strip processing and specifically relates to a slitter edge collection device is related to.

Background

The slitting machine is a device for longitudinally cutting a wide roll material into a plurality of strips with required specifications, and is an important processing device in the production of galvanized aluminum strips. After the large aluminum coil passes through a cutter shaft of the splitting machine, the large aluminum coil can be split into a plurality of aluminum strips which are arranged in parallel and the width of the aluminum strips meets the requirement. In the process of cutting a large aluminum coil into aluminum strips, two sides of a slitting machine can be connected to continuously generate unwanted slitter edges, and in order to prevent the slitter edges from influencing the normal operation of the slitting machine and other processing equipment, two sides of the slitting machine are often provided with slitter edge collecting devices to wind and collect the slitter edges.

As shown in fig. 4, the waste selvedge collecting device includes a frame 1, a rotating shaft 2 rotatably connected to the frame 1, a winding frame 3 disposed on the rotating shaft 2 for winding waste selvedge, and a rotating mechanism 4 disposed on the frame 1 for driving the rotating shaft 2 to rotate; the winding frame 3 comprises a first baffle 31 fixedly sleeved on the side wall of the rotating shaft 2, a plurality of winding rollers 32 fixedly connected to the first baffle 31, a second baffle 33 arranged on one end of the winding roller 32 far away from the first baffle 31 and capable of being completely separated from the winding roller 32, and a locking mechanism arranged on the winding roller 32 and used for abutting and positioning the second baffle 33. When the slitter edge is required to be collected, an operator firstly locks the second baffle plate 33 on the winding rollers 32 through the locking mechanism, and then drives the rotating shaft 2 to rotate through the rotating mechanism 4, so that the winding rollers 32 on the first baffle plate 31 can wind the slitter edge. When the slitter edge is wound to a certain amount, the operator unlocks the position of the second baffle plate 33 by the locking mechanism and removes the second baffle plate 33, so that the operator can take off the slitter edge on the winding roller 32 in a whole winding manner.

Although above-mentioned slitter edge collection device simple structure, it is convenient to use, but in the slitter edge rolling in-process of reality, the slitter edge often very closely is around rolling up on the wind-up roll, and this has just also led to the butt power between slitter edge and the many wind-up rolls great, when the operator prepares to take off the slitter edge on the wind-up roll, the operator need spend a large amount of time and strength just can take off the slitter edge from the wind-up roll, and this has seriously influenced slitter edge collection device's work efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a slitter edge collection device has made things convenient for the operator to take off the slitter edge from the wind-up roll, is favorable to improving slitter edge collection device's work efficiency.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a slitter edge collecting device comprises a rack, a first rotating shaft rotationally connected to the rack, a winding frame arranged on the first rotating shaft, and a rotating mechanism arranged on the rack and used for driving the first rotating shaft to rotate, wherein the winding frame comprises a first baffle plate and a second baffle plate which are slidably sleeved on the first rotating shaft, a second rotating shaft which is rotated on the first baffle plate and is vertical to the first rotating shaft, four winding rollers which are rotationally sleeved on the second rotating shaft and can be separated from the second baffle plate, and a locking mechanism which is arranged on the winding rollers and used for locking the second baffle plate; one end of the first rotating shaft, which penetrates through the first baffle plate, is fixedly sleeved with an installation seat, and a first connecting rod is hinged between each winding roller and the installation seat; the rack is provided with a driving mechanism which drives the first baffle to move towards the mounting seat so as to fold the four winding rollers; the mounting seat is provided with a first spring which drives the first baffle to move towards the direction far away from the mounting seat so as to enable the four winding rollers to be unfolded.

Through adopting above-mentioned technical scheme, when needs carry out the rolling to the slitter edge, the operator makes first baffle towards the direction of keeping away from the mount pad and takes place to remove through the elasticity of first spring, the wind-up roll will move along with first baffle takes place in step, the head rod will take place to rotate round the pin joint with the mount pad, the head rod will become vertical state from the tilt state gradually, the wind-up roll just can take place to rotate round the second pivot that corresponds, four wind-up rolls prop open like the umbrella, the diameter that four wind-up rolls enclose into the circle will the grow, the operator drives the pivot through slewing mechanism afterwards and takes place to rotate, then four wind-up rolls just can carry out the rolling to the slitter edge, and first baffle and second baffle can block the slitter edge, reduce the probability that the slitter edge was thrown off from the wind-up roll. When the slitter edge on the winding roller needs to be cleaned, an operator firstly stops the rotating mechanism, then the locking mechanism is cancelled to lock the position of the second baffle plate and detach the second baffle plate, then the first baffle plate is moved towards the installation seat through the driving mechanism, the first connecting rod rotates around a hinge point with the installation seat, the first connecting rod gradually changes from a vertical state to an inclined state, the winding roller rotates around a corresponding second rotating shaft, the four winding rollers are folded like an umbrella, the diameter of a circle formed by the four winding rollers is reduced, the slitter edge keeps a gap with the winding roller, the slitter edge is not firmly attached to the winding roller, and the operator can smoothly take down the slitter edge on the winding roller. Compared with the prior art, the diameter that four wind-up rolls enclose into the circle is changed through actuating mechanism and first spring to this scheme, has reached the effect that supports tight power size between automatic change slitter edge and the wind-up roll, has saved operator manually operation's work load greatly, has made things convenient for the operator to take off the slitter edge from the wind-up roll, is favorable to improving slitter edge collection device's work efficiency.

The utility model discloses further set up to: the driving mechanism comprises a third rotating shaft which is rotatably connected to the rack and is vertical to the first rotating shaft, and a second connecting rod which is rotatably sleeved on the third rotating shaft, and the third rotating shaft is positioned in the middle of the second connecting rod; the driving mechanism further comprises an abutting block arranged at one end of the second connecting rod and used for pushing the first baffle to move towards the mounting seat, and a hydraulic cylinder hinged between the other end of the second connecting rod and the rack.

Through adopting above-mentioned technical scheme, when needs cleared up the slitter edge on the wind-up roll, the operator makes the piston rod shrink on the pneumatic cylinder, and the one end of second connecting rod just can take place to rotate and keep away from first baffle round the third pivot, and the butt joint piece on the second connecting rod just can with first baffle butt and order about first baffle and take place to remove towards the mount pad, and actuating mechanism's structural principle is simple, and very convenient in the operation.

The utility model discloses further set up to: the first connecting rod comprises an outer rod and an inner rod, one end of the outer rod is hinged to the mounting seat, the inner rod is embedded in the outer rod in a sliding mode, and one end, far away from the outer rod, of the inner rod is hinged to the corresponding winding roller; the outer rod is provided with a fixing mechanism for clamping and positioning the inner rod.

Through adopting above-mentioned technical scheme, the operator accessible slides interior pole and adjusts the whole length of head rod, and after the inclination of head rod kept unchangeable but whole length changes, the diameter size that four wind-up rolls enclosed into the circle also will change thereupon, and then further adjusts the interval between four wind-up rolls, has improved flexibility and the practicality that the device used, has made things convenient for the operator to take off the slitter edge from the wind-up roll, is favorable to improving slitter edge collection device's work efficiency.

The utility model discloses further set up to: the fixing mechanism comprises a second through hole formed in the outer rod, a plurality of slots formed in the inner rod and sequentially facing the second through hole in the sliding process of the inner rod, and a plug pin penetrating through the second through hole and in plug-in fit with the slots.

Through adopting above-mentioned technical scheme, after interior pole slided to suitable position, the operator can slide interior pole slightly again for make the second through-hole can align with nearest slot, pass the bolt in the second through-hole and insert the slot that corresponds afterwards, can carry out the joint location to the position of interior pole, the simple and very convenient operation of fixed establishment structure principle, the whole length of head rod will no longer change. When the whole length of the first connecting rod needs to be adjusted again, an operator can pull out the bolt and then slide the inner rod, and the operation is very convenient and fast.

The utility model discloses further set up to: and a second spring for driving the bolt to be inserted into the slot is arranged on the outer side wall of the outer rod.

Through adopting above-mentioned technical scheme, the spring can order about the bolt and insert in the slot always, has effectively avoided the unexpected condition that breaks away from the slot of bolt.

The utility model discloses further set up to: the slot opening of the slot is arranged in a flaring manner.

By adopting the technical scheme, the flaring at the notch of the slot can play a role in guiding when the bolt is inserted into the slot, so that the bolt can be inserted into the slot more smoothly, and an operator can conveniently lock the position of the inner rod.

The utility model discloses further set up to: one end of the bolt far away from the inner rod is fixedly connected with a pull ring.

Through adopting above-mentioned technical scheme, the pull ring provides a fine application of force position for operator's plug pin, has made things convenient for the operator to remove the plug pin.

To sum up, the utility model discloses a beneficial technological effect does:

the arrangement of the second rotating shaft, the mounting seat, the first connecting rod, the driving mechanism and the first spring can achieve the effect of automatically changing the magnitude of the abutting force between the slitter edge and the winding roller, is convenient for an operator to take the slitter edge off the winding roller, and is beneficial to improving the working efficiency of the slitter edge collecting device;

the arrangement of the inner rod, the outer rod and the fixing mechanism can further adjust the space among the four winding rollers, so that the flexibility and the practicability of the device are improved;

the condition that the bolt is accidentally separated from the slot is effectively avoided due to the arrangement of the second spring.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is the connection structure schematic diagram of the middle wind-up roll and the second baffle of the utility model.

Fig. 3 is an exploded view of the first connecting rod according to the present invention.

Fig. 4 is a schematic view of the overall structure of the prior art.

In the figure, 1, a frame; 2. a first rotating shaft; 3. a winding frame; 31. a first baffle plate; 32. a wind-up roll; 33. a second baffle; 34. a threaded hole; 35. a first through hole; 36. a bolt; 4. a first gear; 5. a motor; 6. a second gear; 7. a crawler belt; 8. a second rotating shaft; 9. a mounting seat; 10. a first connecting rod; 101. an outer rod; 102. an inner rod; 11. a first spring; 12. a third rotating shaft; 13. a second connecting rod; 14. a butting block; 15. a hydraulic cylinder; 16. a second through hole; 17. a bolt; 18. a slot; 19. a pull ring; 20. a second spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, a slitter edge collection device, including frame 1, rotate the first pivot 2 of connecting in frame 1 and being the horizontality, install the rolling frame 3 that is used for rolling the slitter edge on first pivot 2, rotate first gear 4 of connection in frame 1 and drive first gear 4 and take place rotatory motor 5, fixed cover is established at the second gear 6 on 2 lateral walls of first pivot, and rotate the cover and establish between first gear 4 and second gear 6 and with both equal meshed track 7, motor 5 passes through the electric wire and is connected with the power. An operator drives the first gear 4 to rotate through the motor 5, the first rotating shaft 2 and the winding frame 3 can rotate under the linkage action of the first gear 4, the second gear 6 and the crawler belt 7, and the winding frame 3 can wind waste edges. The first gear 4, the second gear 6, the caterpillar band 7 and the motor 5 form a rotating mechanism for driving the first rotating shaft 2 to rotate.

Referring to fig. 1 and 2, the winding frame 3 includes a first baffle 31 sleeved on the side wall of the first rotating shaft 2, and four winding rollers 32 arranged on one surface of the first baffle 31 far away from the second gear 6, wherein the four winding rollers 32 are all parallel to the rotating shaft, and the four winding rollers 32 are uniformly distributed in the circumferential direction around the central axis of the first rotating shaft 2; the winding frame 3 further comprises a second baffle 33 positioned at one end of the winding roller 32 far away from the first baffle 31, a threaded hole 34 formed at one end of the winding roller 32 far away from the first baffle 31, a first through hole 35 formed on the second baffle 33 corresponding to the threaded hole 34, and a bolt 36 penetrating through the first through hole 35 and in threaded fit with the threaded hole 34. When needing to carry out the rolling to the slitter edge, the operator passes first through-hole 35 with bolt 36 and screws up in corresponding screw hole 34, and second baffle 33 just can successfully be installed on wind-up roll 32, and the operator drives first pivot 2 through slewing mechanism afterwards and takes place rotatoryly, and wind-up roll 32 just can carry out the rolling to the slitter edge, and first baffle 31 and second baffle 33 can block spacingly to the slitter edge. When the slitter edge on the wind-up roll 32 needs to be cleaned, an operator first unscrews the bolts 36 and removes the second baffle 33, and then the operator can slide the slitter edge of the whole roll out of the end of the wind-up roll 32 away from the first baffle 31.

Referring to fig. 1, the first baffle 31 is sleeved on the first rotating shaft 2 along the axial sliding direction of the first rotating shaft 2, one side surface of the first baffle 31 close to the second baffle 33 is connected with four second rotating shafts 8 in a rotating manner, the four second rotating shafts 8 are distributed on the second baffle 33 at equal angular intervals around the central axis of the rotating shaft, and each second rotating shaft 8 is perpendicular to the first rotating shaft 2. The positions of the four second rotating shafts 8 correspond to the positions of the four winding rollers 32 one by one, and one end of each winding roller 32, which is close to the first baffle 31, is rotatably sleeved on the corresponding second rotating shaft 8. One end of the first rotating shaft 2, which is far away from the second gear 6, is fixedly sleeved with a mounting seat 9, and a first connecting rod 10 is hinged between each winding roller 32 and the mounting seat 9. The first spring 11 is sleeved on the first rotating shaft 2, one end of the first spring 11 is fixedly connected with the mounting seat 9, the other end of the first spring 11 is fixedly connected with the first baffle plate 31, when the first spring 11 is in a natural state, the first spring 11 drives the first baffle plate 31 to move towards a direction away from the mounting seat 9, and when the first spring 11 is in a contraction state, the first baffle plate 31 moves towards the mounting seat 9. The rack 1 is rotatably connected with a third rotating shaft 12, the third rotating shaft 12 is perpendicular to the first rotating shaft 2, a second connecting rod 13 is arranged on the third rotating shaft 12, and the middle part of the second connecting rod 13 is rotatably sleeved on the side wall of the third rotating shaft 12. One end of the second connecting rod 13 is fixedly connected with a butt block 14 with a cross section being '\\ 21274', the butt block 14 is used for pushing the first baffle plate 31 to move towards the mounting seat 9, the other end of the second connecting rod 13 is hinged with a hydraulic cylinder 15, one end of the hydraulic cylinder 15 far away from the second connecting rod 13 is hinged on the rack 1, and the hydraulic cylinder 15 is connected with a hydraulic pump station through a pipeline. When the slitter edge needs to be rolled, an operator firstly drives a piston rod of the hydraulic cylinder 15 to extend, the abutting block 14 rotates in the direction away from the first baffle plate 31, then the first baffle plate 31 moves in the direction away from the mounting seat 9 under the action of the resilience force of the first spring 11, the rolling rollers 32 move together with the first baffle plate 31 in the direction away from the mounting seat 9, meanwhile, the first connecting rod 10 rotates around the joint point with the mounting seat 9, the included angle between the first connecting rod 10 and the first rotating shaft 2 gradually increases, the rolling rollers 32 rotate around the corresponding second rotating shafts 8, finally, the distance between the four rolling rollers 32 increases, the diameter of a circle surrounded by the four rolling rollers 32 increases, the operator can then install the second baffle plate 33 on the rolling rollers 32, and simultaneously drive the first rotating shaft 2 to rotate through the rotating mechanism, the winding roller 32 winds the slitter edges. When the slitter edges on the winding rollers 32 need to be cleaned, an operator firstly removes the second baffle 33, then drives the piston rod of the hydraulic cylinder 15 to contract, the abutting block 14 on the second connecting rod 13 not only rotates towards the first baffle 31, but also drives the first baffle 31 to move towards the mounting seat 9, the first spring 11 is compressed, the winding rollers 32 move towards the direction close to the mounting seat 9 along with the first baffle 31, meanwhile, the first connecting rod 10 rotates around the intersection point with the mounting seat 9 again, the included angle between the first connecting rod 10 and the first rotating shaft 2 gradually becomes smaller, the winding rollers 32 rotate around the second rotating shaft 8, finally, the space between the four winding rollers 32 becomes smaller, the diameter of a circle surrounded by the four winding rollers 32 becomes smaller, the slitter edges leave a gap with the winding rollers 32, and the slitter edges are not tightly tightened on the winding rollers 32 any more, the operator can smoothly take off the slitter edges on the wind-up roll 32.

Referring to fig. 2 and 3, the first connecting rod 10 includes an outer rod 101 having one end hinged to the mounting seat 9 and a square ring-shaped cross section, and an inner rod 102 slidably attached to the inside of the outer rod 101, and one end of the inner rod 102 away from the outer rod 101 is hinged to the corresponding wind-up roll 32. One end of the outer rod 101, which is far away from the mounting seat 9, is provided with a second through hole 16 which is communicated with the inner side wall and the outer side wall of the outer rod 101, and a bolt 17 is embedded in the second through hole 16 in a sliding manner. A plurality of slots 18 for inserting the bolts 17 are formed in one side wall of the inner rod 102 corresponding to the second through hole 16, the slots 18 are evenly arranged along the length direction of the inner rod 102 at intervals, in the sliding process of the inner rod 102, the second through hole 16 is opposite to the slots 18 one by one, and the slot opening of each slot 18 is flared. The operator can change the overall length of first connecting rod 10 through sliding inner rod 102, and after the inclination of first connecting rod 10 kept unchangeable but overall length changed, the interval between four wind-up rollers 32 will change, and then further adjust the diameter that four wind-up rollers 32 enclose into the circle, has made things convenient for the operator to follow-up take off slitter edge from wind-up roller 32. To facilitate the insertion and removal of the plug 17 by an operator, a pull ring 19 is fixedly connected to an end of the plug 17 extending beyond the outer side wall of the outer rod 101. The second through hole 16, the slot 18 and the latch 17 constitute a fixing mechanism for clamping and positioning the inner rod 102.

Referring to fig. 3, one end of the plug 17 extending out of the outer side wall of the outer rod 101 is sleeved with a second spring 20, one end of the second spring 20 is fixedly connected with the outer side wall of the outer rod 101, the other end of the second spring 20 is fixedly connected with one end of the plug 17 extending out of the outer side wall of the outer rod 101, when the second spring 20 is in a natural state, the second spring 20 pushes the plug 17 into the corresponding slot 18, and when the second spring 20 is in a contracted state, the plug 17 moves away from the slot 18 and separates from the slot 18. The provision of the second spring 20 effectively prevents the latch 17 from being disengaged from the slot 18.

The implementation principle of the embodiment is as follows: when the slitter edge needs to be rolled, an operator firstly drives a piston rod of the hydraulic cylinder 15 to extend, the abutting block 14 rotates in the direction away from the first baffle plate 31, then the first baffle plate 31 moves in the direction away from the mounting seat 9 under the action of the resilience force of the first spring 11, the rolling rollers 32 move together with the first baffle plate 31 in the direction away from the mounting seat 9, meanwhile, the first connecting rod 10 rotates around the joint point with the mounting seat 9, the included angle between the first connecting rod 10 and the first rotating shaft 2 gradually increases, the rolling rollers 32 rotate around the corresponding second rotating shafts 8, finally, the distance between the four rolling rollers 32 increases, the diameter of a circle surrounded by the four rolling rollers 32 increases, the operator can then install the second baffle plate 33 on the rolling rollers 32, and simultaneously drive the first rotating shaft 2 to rotate through the rotating mechanism, the winding roller 32 winds the slitter edges. When the slitter edges on the winding rollers 32 need to be cleaned, an operator firstly removes the second baffle 33, then drives the piston rod of the hydraulic cylinder 15 to contract, the abutting block 14 on the second connecting rod 13 not only rotates towards the first baffle 31, but also drives the first baffle 31 to move towards the mounting seat 9, the first spring 11 is compressed, the winding rollers 32 move towards the direction close to the mounting seat 9 along with the first baffle 31, meanwhile, the first connecting rod 10 rotates around the intersection point with the mounting seat 9 again, the included angle between the first connecting rod 10 and the first rotating shaft 2 gradually becomes smaller, the winding rollers 32 rotate around the second rotating shaft 8, finally, the space between the four winding rollers 32 becomes smaller, the diameter of a circle surrounded by the four winding rollers 32 becomes smaller, the slitter edges leave a gap with the winding rollers 32, and the slitter edges are not tightly tightened on the winding rollers 32 any more, the operator can smoothly take off the slitter edges on the wind-up roll 32.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a slitter edge collection device, includes frame (1), rotates first pivot (2) of connection in frame (1), sets up rolling frame (3) on first pivot (2) to and set up and be used for driving first pivot (2) to take place rotatory slewing mechanism, its characterized in that in frame (1): the winding frame (3) comprises a first baffle plate (31) and a second baffle plate (33) which are sleeved on the first rotating shaft (2) in a sliding mode, a second rotating shaft (8) which rotates on the first baffle plate (31) and is perpendicular to the first rotating shaft (2), four winding rollers (32) which are sleeved on the second rotating shaft (8) in a rotating mode and can be separated from the second baffle plate (33), and a locking mechanism which is arranged on the winding rollers (32) and used for locking the second baffle plate (33); one end of the first rotating shaft (2) penetrating through the first baffle (31) is fixedly sleeved with a mounting seat (9), and a first connecting rod (10) is hinged between each winding roller (32) and the mounting seat (9); a driving mechanism for driving the first baffle (31) to move towards the mounting seat (9) so as to furl the four winding rollers (32) is arranged on the rack (1); the mounting seat (9) is provided with a first spring (11) which drives the first baffle (31) to move towards the direction far away from the mounting seat (9) so as to enable the four winding rollers (32) to be opened.

2. A scrap edge collecting apparatus in accordance with claim 1 wherein: the driving mechanism comprises a third rotating shaft (12) which is rotatably connected to the rack (1) and is vertical to the first rotating shaft (2), and a second connecting rod (13) which is rotatably sleeved on the third rotating shaft (12), wherein the third rotating shaft (12) is positioned in the middle of the second connecting rod (13); the driving mechanism further comprises a butting block (14) which is arranged at one end of the second connecting rod (13) and used for pushing the first baffle (31) to move towards the mounting seat (9), and a hydraulic cylinder (15) which is hinged between the other end of the second connecting rod (13) and the rack (1).

3. A scrap edge collecting apparatus in accordance with claim 1 wherein: the first connecting rod (10) comprises an outer rod (101) and an inner rod (102), one end of the outer rod (101) is hinged to the mounting seat (9), the inner rod (102) is embedded in the outer rod (101) in a sliding mode, and one end, far away from the outer rod (101), of the inner rod (102) is hinged to a corresponding winding roller (32); the outer rod (101) is provided with a fixing mechanism for clamping and positioning the inner rod (102).

4. A scrap edge collecting apparatus in accordance with claim 3 wherein: the fixing mechanism comprises a second through hole (16) formed in the outer rod (101), a plurality of slots (18) formed in the inner rod (102) and sequentially facing the second through hole (16) in the sliding process of the inner rod (102), and a plug pin (17) penetrating through the second through hole (16) and matched with the slots (18) in an inserting mode.

5. A scrap edge collecting apparatus in accordance with claim 4 wherein: and a second spring (20) for driving the bolt (17) to be inserted into the slot (18) is arranged on the outer side wall of the outer rod (101).

6. A scrap edge collecting apparatus in accordance with claim 4 wherein: the notch of the inserting groove (18) is in flaring arrangement.

7. A scrap edge collecting apparatus in accordance with claim 4 wherein: and one end of the bolt (17) far away from the inner rod (102) is fixedly connected with a pull ring (19).