CN212831939U

CN212831939U - Novel vertical cutting machine of emery cloth abrasive paper

Info

Publication number: CN212831939U
Application number: CN202020865648.6U
Authority: CN
Inventors: 吴新跃
Original assignee: Zhengzhou Shixiao Machine Equipment Co ltd
Current assignee: Zhengzhou Shixiao Machine Equipment Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-03-30
Anticipated expiration: 2030-05-21

Abstract

The utility model belongs to the technical field of abrasive belt processing equipment, in particular to a novel abrasive cloth abrasive paper longitudinal cutting machine, which comprises an abrasive belt unreeling mechanism, a longitudinal cutting mechanism and a winding mechanism; the longitudinal splitting mechanism is arranged between the abrasive belt unwinding mechanism and the winding mechanism and comprises a splitting cutter roller, a splitting guide roller and a driving device; a plurality of annular slitting knives which are distributed at intervals are arranged on the slitting knife roller, and the driving device drives the slitting knife roller to press down on the slitting guide roller to longitudinally slit the abrasive belt; the winding mechanism comprises an air expansion shaft, a pneumatic clutch and a winding motor, wherein the winding motor is connected with the air expansion shaft through the pneumatic clutch and drives the air expansion shaft to rotate to realize winding, the pneumatic clutch can adjust the separation and combination linkage and linkage friction force of the winding motor and the air expansion shaft in real time, and the whole adjustment does not need stopping operation. The deviation correcting system avoids the waste of two edges of the abrasive belt roll, makes full use of all abrasive belt materials and greatly saves the production cost.

Description

Novel vertical cutting machine of emery cloth abrasive paper

Technical Field

The utility model belongs to the technical field of abrasive band processing equipment, concretely relates to novel vertical cutting machine of emery cloth abrasive paper.

Background

In the production process of the abrasive belt, the prepared rolled abrasive paper or abrasive cloth needs to be further cut into required widths, a plurality of slitting knives which are distributed at intervals are generally adopted for slitting in the slitting process, and because the two side surfaces of the wound abrasive belt cannot be completely flush in the winding process of the original abrasive paper or abrasive belt roll, the slit surfaces are generally arranged in order to ensure that the width of the slit abrasive belt meets the requirement in the longitudinal slitting process; the width between the two outer side slitting knives is smaller than that of the sand roll to be slit, and the abrasive belts on the outer sides of the two outer side slitting knives are slit and discarded during slitting, so that a large amount of waste is caused. The abrasive belt production enterprises have large daily production capacity, and the cost of the abrasive belt waste discarded every day is high, so that the factory price of the finished abrasive belt is greatly increased, and the product sale is not facilitated.

Therefore, there is a need to provide an improved solution to the deficiencies of the prior art.

Disclosure of Invention

An object of the utility model is to provide a novel vertical cutting machine of emery cloth abrasive paper to solve at least present abrasive band and cut two long limit cutting abandonments in-process abrasive band and lead to the extravagant problem of material.

In order to realize the purpose, the utility model provides a following technical scheme:

a novel longitudinal cutting machine for abrasive cloth and abrasive paper comprises an abrasive belt unwinding mechanism, a longitudinal cutting mechanism and a winding mechanism; the abrasive belt unwinding mechanism comprises an abrasive belt reel used for installing an abrasive belt roll to be cut; the longitudinal slitting mechanism is arranged between the abrasive belt unwinding mechanism and the winding mechanism and is used for longitudinally slitting the abrasive belt; the winding mechanism is used for winding and collecting the abrasive belt cut by the longitudinal cutting mechanism; abrasive band unwinding mechanism includes abrasive band spool, photoelectric sensing ware and rectifying system, the photoelectric sensing ware sets up winding mechanism with vertically cut between the mechanism, be located the abrasive band border department of waiting to cut, rectifying system with the one end of abrasive band spool is connected, rectifying system drive the abrasive band spool removes along the axis direction, the photoelectric sensing ware with the control system of novel vertical cutting machine of emery cloth abrasive paper connects, with control rectifying system moves.

In the novel vertical cutting machine of emery cloth abrasive paper as above, as preferred scheme, the rectifying system includes upper portion slip table, lower part slip table, the motor and the lead screw is vice, be provided with the guide rail on the slip table of lower part, the upper portion slip table can be followed the guide rail of lower part slip table slides, the lower part slip table with the casing of the vertical cutting machine of novel emery cloth abrasive paper erects backup pad fixed connection, the lead screw is vice including lead screw sleeve and lead screw, the lead screw with the output shaft coaxial coupling of the motor of rectifying, the lead screw sleeve is fixed on the casing of the vertical cutting machine of novel emery cloth abrasive paper erects the backup pad, the motor of rectifying with upper portion slip table fixed connection, the one end of abrasive band spool with upper portion slip table rotates to be connected.

In the vertical cutting machine of novel emery cloth abrasive paper as above, as preferred scheme, abrasive belt unwinding mechanism still includes pneumatic brake ware, pneumatic brake ware includes pneumatic brake disc and first pneumatic brake block, pneumatic brake disc with the coaxial fixed connection of one end of abrasive belt spool, first pneumatic brake block is fixed on the upper portion slip table, with pneumatic brake disc cooperation is used, to let in pressure gas in the first pneumatic brake block in order to realize first pneumatic brake block presss from both sides tightly the both sides face of pneumatic brake disc.

In the novel vertical cutting machine of emery cloth abrasive paper as above, as preferred scheme, photoelectric sensor includes two sets of correlation formula photoelectric sensor, and is two sets of correlation formula photoelectric sensor sets up with 1~3 mm's interval.

In the vertical cutting machine of novel emery cloth abrasive paper as above, as preferred scheme, winding mechanism includes inflatable shaft, pneumatic clutch and winding motor, winding motor passes through pneumatic clutch with inflatable shaft is connected, drives inflatable shaft rotation realizes coiling, pneumatic clutch includes clutch disc, second pneumatic brake block and driving-disc, the clutch disc with inflatable shaft coaxial fixed connection, second pneumatic brake block with driving-disc fixed connection, second pneumatic brake block presss from both sides the both sides face of clutch disc, to let in pressure gas in the second pneumatic brake block realizes the clamp of second pneumatic brake block is tight, winding motor drive the driving-disc rotates.

In the novel longitudinal cutting machine for abrasive cloth and abrasive paper, as a preferable scheme, the longitudinal cutting mechanism comprises a cutting knife roller, a cutting guide roller and a driving device; divide the cutter roll with cut the guide roll setting and be in abrasive band unwinding mechanism with between the winding mechanism, drive arrangement drive divide the cutter roll to push down cut on the guide roll, will pass through divide the cutter roll with cut abrasive paper or abrasive cloth between the guide roll and cut for predetermineeing the width, divide the annular that is provided with a plurality of intervals subsection on the cutter roll and divide the cutter.

In the novel vertical cutting machine of emery cloth abrasive paper as above, as preferred scheme, drive arrangement is the lifting cylinder, vertical cutting mechanism still includes first swing arm and second swing arm, first swing arm with the one end of second swing arm is fixed in on the same rotation axis, the piston rod of lifting cylinder with the other end of first swing arm is articulated, the cylinder of lifting cylinder with the casing vertical support plate of vertical cutting machine of novel emery cloth abrasive paper is articulated, the second swing arm is provided with two, two second swing arm parallel arrangement, the both ends of dividing and cutting knife roller respectively with two the other end of second swing arm is connected, the flexible drive of lifting cylinder the second swing arm is rotatory around the rotation axis, in order to realize dividing and cutting knife roller with cut the connection and the separation of guide roll.

In the novel vertical cutting machine for abrasive cloth and abrasive paper, as an optimal scheme, two ends of the slitting knife roller are respectively rotatably connected with the other ends of the two second swing arms, and the annular slitting knife is fixedly connected with the slitting knife roller.

In the novel vertical cutting machine for abrasive cloth and abrasive paper, as an optimal scheme, the pneumatic clutch further comprises a support frame and a pneumatic rotary joint, the support frame is of a U-shaped structure, two ends of the support frame are respectively connected with the driving disc, the support frame is provided with the pneumatic rotary joint, an air source air pipe is connected with an air inlet end of the pneumatic rotary joint, and an air outlet end of the pneumatic rotary joint is connected with the second pneumatic brake block through an air pipe.

In the novel vertical cutting machine for abrasive cloth and abrasive paper, as an optimal scheme, an air pressure adjusting device is arranged on the air source air pipe and is used for adjusting the air pressure introduced into the second pneumatic brake block.

Compared with the closest prior art, the utility model provides a technical scheme has following beneficial effect:

the utility model provides a novel vertical cutting machine of emery cloth abrasive paper has avoided the waste at two borders of abrasive band book through setting up deviation correcting system, makes all abrasive band materials make full use of, has practiced thrift manufacturing cost greatly. The pneumatic clutch is arranged to realize the quick separation and combination linkage of the winding motor and the pneumatic expansion shaft, the linkage friction force can be increased at any time according to different winding radiuses in the whole linkage winding process to ensure the winding compactness, and the whole adjustment does not need the shutdown operation. A plurality of annular branch cutters set firmly on dividing the cutter roller, cut and lift up through the unified operation of a lifting cylinder, retrench the structure greatly, reduced equipment cost, the operation uniformity is higher. In the use, the abrasive band width of cutting as required select suitable cutting deflector roll installation can, practiced thrift the time of dividing cutter installation and interval adjustment, and make cut more accurate. Whole novel vertical cutting machine of emery cloth abrasive paper compact structure, rationally distributed, furthest's reduction raw and other materials are extravagant, improved cut efficiency and cut the degree of accuracy, reduced equipment cost, have important meaning to the development of novel vertical cutting machine of emery cloth abrasive paper.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. Wherein:

FIG. 1 is a first schematic structural view of a longitudinal cutting machine for novel abrasive cloth and abrasive paper of the embodiment of the invention;

FIG. 2 is a side view of the vertical slitting machine for the novel abrasive cloth and abrasive paper of the embodiment of the invention;

FIG. 3 is a schematic structural view II of a longitudinal cutting machine for novel abrasive cloth and abrasive paper of the embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a deviation correcting system according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a pneumatic clutch according to an embodiment of the present invention.

In the figure: 1. a first guide roller; 2. a slitting cutter roll; 3. an air expansion shaft; 4. a deviation rectifying motor; 5. a pneumatic brake disc; 6. a lifting cylinder; 7. a winding motor; 8. a pneumatic clutch; 9. a belt reel; 10. a first swing arm; 11. slitting guide rollers; 12. a photoelectric sensor; 13. a pressure roller; 14. a second swing arm; 15. a slide rail; 16. a lower sliding table; 17. a first pneumatic brake 7; 18. a second pneumatic brake block; 19. a drive disc; 20. a pneumatic rotary joint; 21. a support frame; 22. a clutch disc; 23. an air source air pipe; 24. a lead screw sleeve.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense, and may be, for example, either fixed or detachable; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the terms may be understood as appropriate by those skilled in the art.

According to the utility model discloses an embodiment, as shown in fig. 1 to fig. 5, provide a vertical cutting machine of novel emery cloth abrasive paper, this vertical cutting machine of novel emery cloth abrasive paper includes abrasive band unwinding mechanism, vertical cutting mechanism and winding mechanism.

The abrasive belt unreeling mechanism comprises an abrasive belt reel 9 used for installing an abrasive belt roll to be cut; specifically, abrasive belt unwinding mechanism includes abrasive belt spool 9 (the installation remains the abrasive belt roll of cutting on abrasive belt spool 9), photoelectric sensing ware 12 and the rectifying system, and photoelectric sensing ware 12 sets up between winding mechanism and vertical cutting mechanism, is located the abrasive belt border department of treating cutting, and the rectifying system is connected with the one end of abrasive belt spool 9, and rectifying system drive abrasive belt spool 9 removes along the axis direction, and photoelectric sensing ware 12 is connected with the control system of the vertical cutting machine of novel emery cloth abrasive paper to control rectifying system operation. The deviation correcting system includes upper portion slip table, lower part slip table 16, motor 4 and the lead screw is vice to rectifying, be provided with the guide rail on the slip table 16 of lower part, the guide rail that 16 slip table 16 of lower part can be followed to the upper portion slip table slides, backup pad fixed connection is erect with the casing of novel vertical cutting machine of emery cloth abrasive paper to lower part slip table 16, the lead screw is vice to include lead screw sleeve 24 and lead screw, the lead screw is with motor 4's output shaft coaxial coupling that rectifies, lead screw sleeve 24 is fixed and is erected the backup pad at the casing of novel vertical cutting machine of emery cloth abrasive paper, motor 4 and upper portion slip table fixed connection rectify, the one. The photoelectric sensor 12 comprises two groups of correlation photoelectric sensors which are arranged at intervals of 1-3 mm. When the automatic belt edge aligning device is used, when an abrasive belt edge is located between two groups of photoelectric sensors (namely, the abrasive belt edge blocks one group of photoelectric sensors and does not block the other group of photoelectric sensors), the deviation correcting motor 4 does not operate and normally unreels, and when the abrasive belt edge simultaneously blocks the two groups of photoelectric sensors or simultaneously breaks away from the signal intervals of the two groups of photoelectric sensors, the control system controls the deviation correcting motor 4 to operate to drive the upper sliding table to operate on the sliding rail 15, so that the abrasive belt edge is located at a normal position (namely, the abrasive belt edge blocks one group of photoelectric sensors and does not block the other group of photoelectric sensors). The arrangement of the deviation correcting system can avoid the waste of two edges of the abrasive belt roll, so that all abrasive belt materials are fully utilized, and the production cost is greatly saved.

In order to control the unwinding speed of the abrasive belt reel 9, the abrasive belt unwinding mechanism further comprises a pneumatic brake, the pneumatic brake comprises a pneumatic brake disc 5 and a first pneumatic brake block 17, the pneumatic brake disc 5 is coaxially and fixedly connected with one end of the abrasive belt reel 9, the first pneumatic brake block 17 is fixed on the upper sliding table and is matched with the pneumatic brake disc 5 for use, and pressure gas is introduced into the first pneumatic brake block 17 to clamp the first pneumatic brake block 17 on two side faces of the pneumatic brake disc 5. When the abrasive belt tensioning device is used, different clamping forces are provided by controlling the air pressure introduced into the first pneumatic brake block 17, so that the abrasive belt reel 9 can receive different resistances, the phenomenon that the abrasive belt is tensioned all the time due to the fact that the abrasive belt is too fast to unreel is avoided, and the air pressure in the first pneumatic brake block 17 can be gradually reduced in the actual use process due to the fact that the outer diameter of the abrasive belt reel is gradually reduced in the unreeling process, and therefore the abrasive belt is guaranteed to basically maintain the same tensioning force.

The longitudinal slitting mechanism is arranged between the abrasive belt unwinding mechanism and the winding mechanism and is used for longitudinally slitting the abrasive belt; the longitudinal splitting mechanism comprises a splitting knife roller 2, a splitting guide roller 11 and a driving device; divide cutter roll 2 and cut guide roll 11 and set up between abrasive band unwinding mechanism and winding mechanism, drive arrangement drive divide cutter roll 2 to push down on cutting guide roll 11, will divide through dividing cutter roll 2 and cut the abrasive paper or the emery cloth between the guide roll 11 and cut and be preset the width, divide the annular that is provided with a plurality of interval subsections on the cutter roll 2 and divide the cutter.

Specifically, drive arrangement is lifting cylinder 6, vertically cut the mechanism and still include first swing arm 10 and second swing arm 14, the one end of first swing arm 10 and second swing arm 14 is fixed in on the same rotation axis, the piston rod of lifting cylinder 6 is articulated with the other end of first swing arm 10, the cylinder of lifting cylinder 6 is articulated with the vertical supporting plate of the casing of novel emery cloth abrasive paper vertical cutting machine, second swing arm 14 is provided with two, two second swing arm 14 parallel arrangement, the both ends of branch cutter roller 2 are connected with the other end of two second swing arms 14 respectively, lifting cylinder 6 is flexible to drive second swing arm 14 rotatory around the rotation axis, in order to realize dividing cutter roller 2 and cut being connected and separating of guide roll 11. The lifting cylinder 6 drives the slitting knife rollers 2 to operate in a unified mode, the structure is simplified (in the prior art, a cylinder is arranged on each slitting knife rest, and a slitting knife wheel is arranged on each slitting knife rest, so that more cylinders are needed), the equipment cost is reduced, and the operation consistency is high.

Furthermore, the surface of the slitting guide roller 11 is made of rubber. The rubber material has excellent wear resistance, so that the service life of the slitting guide roller 11 is greatly prolonged. One end of the slitting guide roller 11 is provided with a belt pulley, the belt pulley is connected with an output shaft belt of the winding motor 7, and the slitting guide roller 11 is driven to rotate by the winding motor 7.

Furthermore, two ends of the slitting knife roller 2 are respectively connected with the other ends of the two second swing arms 14 in a rotating manner, and the annular slitting knife is fixedly connected with the slitting knife roller 2. In the use, the abrasive band width of cutting as required select suitable cutting deflector roll installation can, practiced thrift the time of dividing cutter installation and interval adjustment, and make and cut more accurately, divide the cutter to use the wearing and tearing dulling back for a long time when the annular, only need with whole cutting the deflector roll dismantle down carry on the coping can, convenient and fast has practiced thrift the change time.

The winding mechanism is used for winding and collecting the abrasive belt cut by the longitudinal cutting mechanism; the winding mechanism comprises an air expansion shaft 3, a pneumatic clutch 8 and a winding motor 7, the winding motor 7 is connected with the air expansion shaft 3 through the pneumatic clutch 8 and drives the air expansion shaft 3 to rotate to realize winding, the pneumatic clutch 8 comprises a clutch disc 22, a second pneumatic brake block 18 and a driving disc 19, the clutch disc 22 is coaxially and fixedly connected with the air expansion shaft 3, the second pneumatic brake block 18 is fixedly connected with the driving disc 19, the second pneumatic brake block 18 is clamped on two side faces of the clutch disc 22, pressure gas is introduced into the second pneumatic brake block 18 to clamp the second pneumatic brake block 18, and the winding motor 7 drives the driving disc 19 to rotate. The mechanical clutch in the prior art is replaced by the pneumatic clutch 8, so that the separation is faster (only pressure gas is stopped being introduced into the second pneumatic brake block 18), and the friction control is more convenient and faster in combination (the friction can be adjusted in real time by adjusting the pressure of the gas introduced into the second pneumatic brake block 18). In the embodiment, two air expansion shafts 3 are arranged, the two air expansion shafts 3 are arranged at intervals, the pneumatic clutches 8 at the end parts of the two air expansion shafts 3 are connected with the output shaft of the winding motor 7 through a belt, and the winding motor 7 drives the two air expansion shafts 3 to rotate simultaneously to realize winding. Of course, when one of the inflatable shafts 3 needs to be stopped, the introduction of the pressurized gas into the second pneumatic brake block 18 of the inflatable shaft 3 only needs to be stopped.

Furthermore, the pneumatic clutch 8 further comprises a support frame 21 and a pneumatic rotary joint 20, the support frame 21 is of a U-shaped structure, two ends of the support frame 21 are respectively connected with the driving disc 19, the pneumatic rotary joint 20 is arranged on the support frame 21, the air source air pipe 23 is connected with an air inlet end of the pneumatic rotary joint 20, and an air outlet end of the pneumatic rotary joint 20 is connected with the second pneumatic brake block 18 through an air pipe. The pneumatic rotary joint 20 comprises an inner core and an outer sleeve, wherein the air outlet end is arranged on the outer sleeve, the air inlet end is arranged on the inner core, the inner core is connected with the outer sleeve in a rotary sealing mode, and the air inlet end is communicated with the air outlet end. The pneumatic rotary joint 20 and the support frame 21 can avoid the air pipe from winding when the driving disc 19 rotates.

Further, an air pressure adjusting device is arranged on the air source air pipe 23 and is used for adjusting the air pressure introduced into the second pneumatic brake block 18.

In order to ensure that the abrasive belt is more stable in operation in the cutting process, a first guide roller 1 and a pressing roller 13 are further arranged in the abrasive belt cutting process, the first guide roller 1 is arranged between an abrasive belt reel 9 and a cutting guide roller 11 to adjust the position of the abrasive belt and facilitate cutting, the pressing roller 13 is arranged at the rear end of the cutting guide roller 11 and presses the surface of the cutting guide roller 11 when cutting, and the pressing roller is driven by the cutting guide roller 11 to rotate so as to convey the cut abrasive belt to the rear.

To sum up, the utility model provides a novel vertical cutting machine of emery cloth abrasive paper has avoided the waste at two borders of abrasive band book through setting up deviation correcting system, makes all abrasive band material make full use of all, has practiced thrift manufacturing cost greatly. The pneumatic clutch is arranged to realize the quick separation and combination linkage of the winding motor and the pneumatic expansion shaft, the linkage friction force can be increased at any time according to different winding radiuses in the whole linkage winding process to ensure the winding compactness, and the whole adjustment does not need the shutdown operation. A plurality of annular branch cutters set firmly on dividing the cutter roller, cut and lift up through the unified operation of a lifting cylinder, retrench the structure greatly, reduced equipment cost, the operation uniformity is higher. In the use, the abrasive band width of cutting as required select suitable cutting deflector roll installation can, practiced thrift the time of dividing cutter installation and interval adjustment, and make cut more accurate. Whole novel vertical cutting machine of emery cloth abrasive paper compact structure, rationally distributed, furthest's reduction raw and other materials are extravagant, improved cut efficiency and cut the degree of accuracy, reduced equipment cost, have important meaning to the development of novel vertical cutting machine of emery cloth abrasive paper.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel longitudinal cutting machine for abrasive cloth and abrasive paper is characterized by comprising an abrasive belt unwinding mechanism, a longitudinal cutting mechanism and a winding mechanism;

the abrasive belt unwinding mechanism comprises an abrasive belt reel used for installing an abrasive belt roll to be cut;

the longitudinal slitting mechanism is arranged between the abrasive belt unwinding mechanism and the winding mechanism and is used for longitudinally slitting the abrasive belt;

the winding mechanism is used for winding and collecting the abrasive belt cut by the longitudinal cutting mechanism;

abrasive band unwinding mechanism still includes photoelectric sensing ware and rectifying system, the photoelectric sensing ware sets up winding mechanism with vertically cut between the mechanism, be located the abrasive band border department of waiting to cut, rectifying system with the one end of abrasive band spool is connected, rectifying system drive the abrasive band spool removes along the axis direction, the photoelectric sensing ware with the control system of the vertical cutting machine of novel emery cloth abrasive paper connects, with control rectifying system moves.

2. The novel vertical cutting machine for emery cloth paper as claimed in claim 1, wherein said error correcting system includes an upper sliding table, a lower sliding table, an error correcting motor and a screw pair, said lower sliding table is provided with a guide rail, said upper sliding table can slide along said guide rail of said lower sliding table, said lower sliding table is fixedly connected with the vertical supporting plate of the casing of said machine, said screw pair includes a screw sleeve and a screw, said screw is coaxially connected with the output shaft of said error correcting motor, said screw sleeve is fixed on the vertical supporting plate of the casing of said machine, said error correcting motor is fixedly connected with said upper sliding table, and one end of said abrasive belt reel is rotatably connected with said upper sliding table.

3. The novel longitudinal cutting machine for abrasive cloth and abrasive paper as claimed in claim 2, wherein said abrasive belt unwinding mechanism further comprises a pneumatic brake, said pneumatic brake comprises a pneumatic brake disc and a first pneumatic brake block, said pneumatic brake disc is coaxially and fixedly connected with one end of said abrasive belt winding shaft, said first pneumatic brake block is fixed on said upper sliding table, and is used in cooperation with said pneumatic brake disc, and a pressurized gas is introduced into said first pneumatic brake block to clamp said first pneumatic brake block on both sides of said pneumatic brake disc.

4. The novel longitudinal cutting machine for abrasive cloth and abrasive paper as claimed in claim 1, wherein said photoelectric sensor comprises two sets of opposite photoelectric sensors, and said two sets of opposite photoelectric sensors are spaced at intervals of 1-3 mm.

5. The novel longitudinal cutting machine for abrasive cloth and abrasive paper as claimed in claim 4, wherein said winding mechanism includes an air-expanding shaft, a pneumatic clutch and a winding motor, said winding motor is connected with said air-expanding shaft through said pneumatic clutch to drive said air-expanding shaft to rotate for realizing winding, said pneumatic clutch includes a clutch disk, a second pneumatic brake block and a driving disk, said clutch disk is coaxially and fixedly connected with said air-expanding shaft, said second pneumatic brake block is fixedly connected with said driving disk, said second pneumatic brake block is clamped on two side surfaces of said clutch disk, pressure gas is introduced into said second pneumatic brake block to realize clamping of said second pneumatic brake block, said winding motor drives said driving disk to rotate.

6. A novel longitudinal cutting machine for emery cloth and sand paper as claimed in claim 5, characterized in that, said longitudinal cutting mechanism includes a cutting knife roller, a cutting guide roller and a driving device; divide the cutter roll with cut the guide roll setting and be in abrasive band unwinding mechanism with between the winding mechanism, drive arrangement drive divide the cutter roll to push down cut on the guide roll, will pass through divide the cutter roll with cut abrasive paper or abrasive cloth between the guide roll and cut for predetermineeing the width, divide the annular that is provided with a plurality of intervals subsection on the cutter roll and divide the cutter.

7. The novel vertical cutting machine for emery cloth paper as claimed in claim 6, wherein said driving device is a lifting cylinder, said vertical cutting mechanism further includes a first swing arm and a second swing arm, one end of said first swing arm and one end of said second swing arm are fixed on the same rotation axis, a piston rod of said lifting cylinder is hinged to the other end of said first swing arm, a cylinder of said lifting cylinder is hinged to a vertical supporting plate of a housing of said vertical cutting machine for emery cloth paper, said second swing arm is provided with two, parallel to said second swing arm, two ends of said slitting knife roll are respectively connected to the other ends of said two swing arms, said lifting cylinder drives said second swing arm to rotate around the rotation axis, so as to realize the connection and separation of said slitting knife roll and said slitting guide roll.

8. A novel longitudinal cutting machine for abrasive cloth and abrasive paper as claimed in claim 7, wherein both ends of said slitting roller are respectively and rotatably connected with the other ends of said two second swing arms, and said annular slitting knife is fixedly connected with said slitting roller.

9. The novel longitudinal cutting machine for emery cloth and abrasive paper as claimed in claim 5, wherein said pneumatic clutch further comprises a support frame and a pneumatic rotary joint, said support frame is of a U-shaped structure, two ends of said support frame are respectively connected with said drive disc, said support frame is provided with said pneumatic rotary joint, an air source pipe is connected with an air inlet end of said pneumatic rotary joint, and an air outlet end of said pneumatic rotary joint is connected with said second pneumatic brake block through an air pipe.

10. A novel longitudinal cutting machine for sandpaper as claimed in claim 9, wherein said air supply pipe is provided with an air pressure adjusting device for adjusting the air pressure introduced into said second pneumatic brake block.