CN112091305A

CN112091305A - Transverse cutting machine

Info

Publication number: CN112091305A
Application number: CN202010984272.5A
Authority: CN
Inventors: 王建臣; 叶永茂; 马明春; 汤丰鸿; 夏柳洁; 苗子炜; 陈万贵
Original assignee: Quzhou University
Current assignee: Quzhou University
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2020-12-18

Abstract

The invention relates to the field of machine tools and discloses a transverse cutting machine. Wherein, including cutting device and material feeding unit. The feeding device comprises a first support frame, an upper roller, a lower roller, a first driving assembly and a second driving assembly; the two ends of the upper roll are rotatably connected with the first support frame, and the two ends of the upper roll can slide up and down on the first support frame; the lower roller is arranged right below the upper roller, and two ends of the lower roller are rotationally connected with the first supporting frame; the first driving assembly is used for driving the upper roller and/or the lower roller to rotate; the second driving assembly is used for driving the upper roller to be close to or far away from the lower roller; through the technical scheme, the second driving assembly can be used for adjusting the distance between the upper roller and the lower roller so as to adapt to metal coiled materials with different thicknesses, thereby improving the utilization rate of the transverse cutting machine and reducing the production cost.

Description

Transverse cutting machine

Technical Field

The invention relates to the technical field of machine tools, in particular to a transverse cutting machine.

Background

Machine tools are machines for manufacturing machines, also called machine tools or machine tools, and are conventionally called machine tools for short. Generally, the machining method is divided into a metal cutting machine, a forging machine, a woodworking machine and the like. The methods for machining machine parts in modern machine manufacturing are numerous: in addition to cutting, casting, forging, welding, pressing, extruding, etc., however, in general, a part requiring high precision and fine surface roughness is finished by cutting on a machine tool. The machine tool plays an important role in the construction of national economy modernization.

A leveling transverse cutting machine belongs to a machine tool. The transverse cutting machine is a machine for shearing sheet material by using one blade to make reciprocating linear motion relatively to another blade, and is characterized by that it utilizes moving upper blade and fixed lower blade, and adopts reasonable blade gap to apply shearing force to the metal sheet materials with various thicknesses so as to make the sheet materials break and separate according to the required size. The feed devices of prior art leveling crosscuts typically include an upper roller and a lower roller. Since the distance between the upper and lower rolls cannot be adjusted. Thus, prior art leveling cross cuts can only accommodate a single size thickness of metal coil. When the thickness of the metal coiled material is not in the range of proper distance between the upper roller and the lower roller, the feeding device with larger distance between the upper roller and the lower roller or the transverse cutting machine needs to be replaced directly. Therefore, the utilization rate of equipment is greatly reduced, and the production cost is increased.

Disclosure of Invention

The invention aims to provide a transverse cutting machine which can adjust the distance between an upper roller and a lower roller so as to convey metal coiled materials with different distances, improve the utilization rate of equipment and increase the production cost.

In order to achieve the purpose, the invention provides a transverse cutting machine, which comprises a cutting device and a feeding device;

the feeding device comprises a first support frame, an upper roller, a lower roller, a first driving assembly and a second driving assembly; the two ends of the upper roll are rotatably connected with the first support frame, and the two ends of the upper roll can slide up and down on the first support frame; the lower roller is arranged right below the upper roller, and two ends of the lower roller are rotationally connected with the first supporting frame; the first driving assembly is used for driving the upper roller and/or the lower roller to rotate; the second driving assembly is used for driving the upper roller to be close to or far away from the lower roller;

the first driving component comprises a motor, a first belt pulley, a second belt pulley and a belt; the first belt pulleys are arranged at two ends of the upper roller and/or the lower roller, the second belt pulley is fixedly and coaxially connected with an output shaft of the motor, and the belt is sleeved on the first belt pulley and the second belt pulley simultaneously;

the second driving assembly comprises a first pneumatic cylinder or a first hydraulic cylinder arranged above the first support frame and a sliding block arranged on the first support frame and connected with the first support frame in a sliding mode, and the sliding block is fixedly connected with a piston rod of the first pneumatic cylinder or the first hydraulic cylinder; two ends of the upper roller and/or the lower roller are/is respectively connected with the sliding block in a rotating way;

the cutting device comprises an upper moving knife, a lower fixed knife positioned below the upper moving knife and a third driving component for driving the upper moving knife to be close to and far away from the lower fixed knife; the third driving assembly comprises a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a fifth connecting rod, a first guide pillar, a first support frame and a pneumatic cylinder which is horizontally arranged;

the second support frame comprises a support column, a cross beam for connecting the top ends of the two support columns and a first base arranged at the bottom of the support column; one end of the first connecting rod is hinged with a piston rod of the pneumatic cylinder, the other end of the first connecting rod is hinged with the second connecting rod, and the second connecting rod is hinged with the upper moving blade relative to the other end of the first connecting rod; one end of the third connecting rod is hinged with the cross beam, the other end of the third connecting rod is hinged with the fourth connecting rod, and the fourth connecting rod is hinged with the upper moving blade relative to the other end of the third connecting rod; one end of the fifth connecting rod is hinged with the hinged part of the first connecting rod and the second connecting rod, and the other end of the fifth connecting rod is hinged with the hinged part of the third connecting rod and the fourth connecting rod;

one end of the first guide pillar is fixedly connected with the cross beam, the other end of the first guide pillar is fixedly connected with the first base, and the upper moving knife is slidably arranged on the first guide pillar; the first guide post is used for limiting the upper moving knife to move back and forth only along the length direction of the first guide post so as to be close to and far away from the lower fixed knife, and the cutting action is realized.

Through the technical scheme, the second driving assembly can be used for adjusting the distance between the upper roller and the lower roller so as to adapt to metal coiled materials with different thicknesses, thereby improving the utilization rate of the transverse cutting machine and reducing the production cost.

Further, the upper roller and/or the lower roller are/is rotationally connected with the sliding block through a bearing.

Further, the sliding block comprises a through hole arranged at the center of the sliding block, and the bearing is arranged in the through hole; the outer ring of the bearing is fixedly connected with the side wall of the through hole, and the two ends of the upper roller and/or the lower roller are fixedly connected with the inner ring of the bearing.

Furthermore, a strip-shaped through groove is formed in the first support frame, a guide rail is arranged on the side wall of the strip-shaped through groove, and the sliding block is connected with the first support frame in a sliding mode through the guide rail.

Further, tailor the device and still including drawing material mechanism, draw material mechanism including the initiative guide roller, be located the driven guide roller of initiative guide roller below and be used for the drive the pivoted motor element of initiative guide roller, the initiative guide roller with be equipped with the clearance between the driven guide roller.

Further, the cutting assembly further comprises a second base, the second base is fixedly arranged at the top of the cross beam, and the other end, relative to a piston rod of the pneumatic cylinder, of the pneumatic cylinder is hinged to the second base.

Furthermore, the upper moving knife and the lower fixed knife are arranged in a staggered mode in the horizontal direction.

Further, the first guide pillar is perpendicular to the first base and the cross beam at the same time.

Further, the transverse cutting machine also comprises a feeding bin; the feeding bin comprises a bin body with an arc-shaped bottom, the arc-shaped bottom is formed by a plurality of bottom rollers which are arranged at intervals in parallel, and the bottom rollers are arranged in parallel with the upper rollers.

Further, side rollers are arranged on the left side wall and the right side wall of the bin body, and the side rollers are perpendicular to the bottom rollers.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

FIG. 1 is a schematic view of the construction of one embodiment of the crosscut machine of the present invention;

FIG. 2 is a schematic structural diagram of one embodiment of a slider of the present invention;

FIG. 3 is a schematic structural view of one embodiment of a slider associated with a support bracket;

FIG. 4 is a schematic view of the construction of one embodiment of the cross cutting machine of the present invention;

FIG. 5 is a schematic view of the structure of FIG. 4 at another angle;

FIG. 6 is a schematic diagram of the construction of one embodiment of the cropper;

FIG. 7 is a schematic view of the structure of FIG. 6 at another angle;

fig. 8 is a sectional view a-a of fig. 7.

Description of the reference numerals

10 support frame 20 upper roll

30 lower roller 41 motor

42 first pulley 43 second pulley

44 belt 50 slider

51 through hole 61 bottom roller

62 side roller 71 first hydraulic cylinder

81 upper moving knife and 82 lower fixed knife

831 first link 832 second link

833 third link 834 fourth link

835 fifth link 836 first guide pillar

837 pneumatic cylinder 838 bracing column

839 Cross member 840 first base

Detailed Description

The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

In the present invention, the use of the terms of orientation such as "upper and lower" in the case where no description is made to the contrary generally means the orientation in the assembled and used state. "inner and outer" refer to the inner and outer contours of the respective component itself.

The invention provides a transverse cutting machine. As shown in fig. 1-8, the cross cutting machine includes a cutting device and a feeding device.

Wherein, material feeding unit includes:

a support frame 10;

the two ends of the upper roll 20 are rotatably connected with the support frame 10, and the two ends of the upper roll can slide up and down on the support frame 10;

the lower roller 30 is arranged right below the upper roller 20, and two ends of the lower roller are rotationally connected with the supporting frame 10;

a first driving component for driving the upper roller 20 and/or the lower roller 30 to rotate;

a second driving assembly for driving the upper roller 20 closer to or farther from the lower roller 30.

Through the technical scheme, the second driving assembly can be used for adjusting the distance between the upper roller 20 and the lower roller 30 to adapt to metal coiled materials with different thicknesses, so that the utilization rate of the transverse cutting machine is improved, and the production cost is reduced.

Specifically, the first driving assembly includes a motor 41, a first pulley 42, a second pulley 43, and a belt 44. The both ends of going up roller 20 and/or lower roll 30 are provided with first belt pulley 42, second belt pulley 43 with the fixed and coaxial coupling of output shaft of motor 41, belt 44 overlaps simultaneously and is established on first belt pulley 42 and the second belt pulley 43.

In an optional embodiment, the first belt pulley 42 is disposed at two ends of the upper roller 20 and the lower roller 30, the second belt pulley 43 is fixed and coaxially connected to the output shaft of the motor 41, and the belt 44 is sleeved on the first belt pulley 42 and the second belt pulley 43 at the same time. In this embodiment, the rotation directions of the upper and

lower rollers

20 and 30 are opposite.

In a preferred embodiment, the first drive assembly is provided only on the lower roller 30, i.e. it is used only to drive the lower roller 30 and not the upper roller 20. Therefore, in the process of conveying the coiled material, the upper roller 20 drives the coiled material by means of the lower roller 30, and the coiled material drives the upper roller 20 to rotate.

As shown in fig. 1, the second driving assembly includes:

a first pneumatic or hydraulic cylinder 71, wherein the first pneumatic or hydraulic cylinder 71 is arranged above the support frame 10;

and the sliding block 50 is arranged on the support frame 10 and is in sliding connection with the support frame 10, and the sliding block 50 is fixedly connected with a piston rod of the first pneumatic cylinder or the first hydraulic cylinder 71. Both ends of the upper roller 20 and/or the lower roller 30 are rotatably connected with the slider 50, respectively. In an alternative embodiment, the upper roller 20 and/or the lower roller 30 are rotatably connected to the slider 50 by bearings. It should be noted that the slide block 50 connected to the upper roller 20 is not the same slide block as the slide block 50 connected to the lower roller 30.

In a preferred embodiment, the lower roller 30 is not connected to the slide 50, but directly rotatably connected to the support frame 10, for example, in a bearing connection with the support frame 10.

As shown in fig. 2, the slider 50 includes a through hole 51 provided at the center thereof, and the bearing is provided in the through hole 51; the outer ring of the bearing is fixedly connected with the side wall of the through hole 51, and two ends of the upper roller 20 and/or the lower roller 30 are fixedly connected with the inner ring of the bearing.

Further, a strip-shaped through groove 11 is formed in the support frame 10, a guide rail 12 is arranged on the side wall of the strip-shaped through groove, and the guide rail 12 is arranged along the length direction of the strip-shaped through groove. The sliding block 50 is slidably connected with the supporting frame 10 through the guide rail 12. Preferably, a sliding groove 52 is arranged on the sliding block 50, and the sliding connection between the sliding block 50 and the supporting frame 10 is realized through the matching between the sliding groove 52 and the guide rail 12.

Furthermore, as shown in fig. 2, a hole 53 is provided at the top of the slider 50, and the hole 53 is used for fixing the piston rod of the first pneumatic cylinder or the first hydraulic cylinder 71.

Preferably, as shown in fig. 1, the two support frames 10 are respectively disposed at two ends of the upper roll 20 and the lower roll 30, a support rod 90 is further disposed between the two support frames 10, the support rods 90 are parallel to each other, one end of each support rod is fixedly connected to one support frame 10, and the other end of each support rod is fixedly connected to the other support frame 10. The support bar 90 functions as: the supporting frame 10 is supported, and the stability of the feeding device is further improved.

In an alternative embodiment, the system further comprises a controller, wherein the controller is electrically connected to the motor 41 and the first pneumatic or hydraulic cylinder 71, and is used for controlling the working states of the motor 41 and the first pneumatic or hydraulic cylinder 71. The accuracy of the distance adjustment between the upper and

lower rolls

20 and 30 can be improved by controlling the first pneumatic or hydraulic cylinder 71 through the controller.

It should be noted that: the "operating state" includes forward rotation, reverse rotation, stop, start, rotation speed, and the like of the motor 41; including the first pneumatic or hydraulic cylinder 71 drive stroke, etc.

As shown in fig. 6 to 8, the cutting device includes an upper moving blade 81, a lower fixed blade 82 located below the upper moving blade 81, and a third driving assembly for driving the upper moving blade 81 to approach and separate from the lower fixed blade 82. Preferably, the upper moving blade 81 and the lower stationary blade 82 are arranged to be offset in the horizontal direction. It should be noted that the distance of the offset between the upper moving blade 81 and the lower stationary blade 82 in the horizontal direction cannot be too large, and preferably, the offset distance is 2mm to 1 cm.

The third driving assembly includes a first link 831, a second link 832, a third link 833, a fourth link 834, a fifth link 835, a first guide post 836, a first support bracket, and a horizontally disposed pneumatic cylinder 837.

The second support frame comprises a support column 838, a cross beam 839 connecting the top ends of the two support columns 838, and a first base 840 arranged at the bottom of the support column 838; one end of the first connecting rod 831 is hinged to the piston rod of the pneumatic cylinder 837, the other end of the first connecting rod 831 is hinged to the second connecting rod 832, and the second connecting rod 832 is hinged to the upper moving blade 81 relative to the other end of the first connecting rod 831; one end of the third connecting rod 833 is hinged to the cross beam 839, the other end of the third connecting rod 833 is hinged to the fourth connecting rod 834, and the fourth connecting rod 834 is hinged to the upper moving blade 81 relative to the other end of the third connecting rod 833; one end of the fifth connecting rod 835 is hinged with the hinged part of the first connecting rod 831 and the second connecting rod 832, and the other end is hinged with the hinged part of the third connecting rod 833 and the fourth connecting rod 834;

one end of the first guide pillar 836 is fixedly connected to the cross beam 839, and the other end is fixedly connected to the first base 840, and the upper moving blade 81 is slidably mounted on the first guide pillar 836; the first guide post 836 is used to limit the upper moving blade 81 to move back and forth only along the length direction of the first guide post 836 so as to approach and separate from the lower stationary blade 82, thereby realizing the cutting action. Preferably, the first guide pillar 836 is perpendicular to both the first base 840 and the cross beam 839.

The cutting device further comprises a material guiding mechanism, the material guiding mechanism comprises a driving guide roller 91, a driven guide roller 92 located below the driving guide roller 91 and a motor assembly 93 used for driving the driving guide roller 91 to rotate, and a gap is formed between the driving guide roller 91 and the driven guide roller 92. In practical use, the motor assembly 93 drives the driving guide roller 91 to rotate, so that the driving guide roller 91 drives the metal coiled material to move towards the upper moving blade 81 and the lower fixed blade 82, and the metal coiled material is fed into a gap between the driving guide roller 91 and the driven guide roller 92, so that the metal coiled material is conveniently cut.

In an alternative embodiment, the motor assembly 93 includes an a motor, and an output shaft of the a motor is coaxially disposed with the driving guide roller 91.

In another alternative embodiment, the motor assembly 93 includes two a belt pulleys and an a belt sleeved on the two a belt pulleys, wherein one a belt pulley is disposed at one end of the driving guide roller 91, and the other a belt pulley is disposed coaxially with the output shaft of the a motor.

In addition, the cutting assembly further comprises a second base 94, the second base 94 is fixedly arranged on the top of the cross beam 839, and the other end of the pneumatic cylinder 837 relative to the piston rod thereof is hinged with the second base 94.

In the prior art, the cutter is driven by a pneumatic cylinder or a hydraulic cylinder directly. Namely, the piston rod of the pneumatic cylinder or the hydraulic cylinder is directly and fixedly connected with the blade, and the cutting action is realized by driving the piston rod to drive the blade. The disadvantages of this drive are: pneumatic or hydraulic cylinders require a significant amount of drive force to push and pull the blade to effect cutting. Therefore, the third driving assembly is additionally arranged in the technical scheme of the invention, so that the upper moving blade 81 can be pushed and pulled more easily to realize the clipping action.

In addition, the crosscut machine also comprises a feeding bin. As shown in fig. 4, the feeding bin comprises a bin body having an arc-shaped bottom portion formed by a plurality of bottom rollers 61 arranged in parallel at intervals, and the bottom rollers 61 are arranged in parallel with the upper roller 20. The bottom roller 61 is arranged to reduce the friction between the metal coiled material and the bin body when the feeding device feeds the metal coiled material, so that the abrasion of the metal coiled material and the feeding resistance can be reduced.

Side rollers 62 are provided on the left and right side walls of the cartridge body in consideration of the possibility of contact and friction of the metal coil with the left and right side walls of the cartridge body, and preferably, the side rollers 62 are perpendicular to the bottom roller 61. The side rollers 62 are arranged to convert the sliding friction into rolling motion, thereby reducing the wear of the metal coil.

The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims

1. A transverse cutting machine is characterized by comprising a cutting device and a feeding device;

the feeding device comprises a first support frame (10), an upper roller (20), a lower roller (30), a first driving assembly and a second driving assembly; two ends of the upper roll (20) are rotatably connected with the first support frame (10), and two ends of the upper roll can slide up and down on the first support frame (10); the lower roller (30) is arranged right below the upper roller (20), and two ends of the lower roller are rotationally connected with the first support frame (10); the first driving component is used for driving the upper roller (20) and/or the lower roller (30) to rotate; the second driving component is used for driving the upper roller (20) to be close to or far away from the lower roller (30);

the first drive assembly comprises a motor (41), a first pulley (42), a second pulley (43) and a belt (44); the first belt pulley (42) is arranged at two ends of the upper roller and/or the lower roller, the second belt pulley (43) is fixedly and coaxially connected with an output shaft of the motor (41), and the belt (44) is sleeved on the first belt pulley (42) and the second belt pulley (43) at the same time;

the second driving assembly comprises a first air cylinder or a first hydraulic cylinder (71) arranged above the first support frame (10) and a sliding block (50) arranged on the first support frame (10) and connected with the first support frame (10) in a sliding mode, and the sliding block (50) is fixedly connected with a piston rod of the first air cylinder or the first hydraulic cylinder; the two ends of the upper roller (20) and/or the lower roller (30) are/is respectively in rotating connection with the sliding block (50);

the cutting device comprises an upper moving knife (81), a lower fixed knife (82) positioned below the upper moving knife (81) and a third driving component for driving the upper moving knife (81) to approach to and depart from the lower fixed knife (82); the third driving assembly comprises a first connecting rod (831), a second connecting rod (832), a third connecting rod (833), a fourth connecting rod (834), a fifth connecting rod (835), a first guide pillar (836), a first support frame and a horizontally arranged pneumatic cylinder (837);

the second support frame comprises a support column (838), a cross beam (839) connecting the top ends of the two support columns (838), and a first base (840) arranged at the bottom of the support column (838); one end of the first connecting rod (831) is hinged with a piston rod of the pneumatic cylinder (837), the other end of the first connecting rod is hinged with the second connecting rod (832), and the second connecting rod (832) is hinged with the upper moving blade (81) relative to the other end of the first connecting rod (831); one end of the third connecting rod (833) is hinged with the cross beam (839), the other end of the third connecting rod is hinged with the fourth connecting rod (834), and the fourth connecting rod (834) is hinged with the upper moving blade (81) relative to the other end of the third connecting rod (833); one end of the fifth connecting rod (835) is hinged with the hinged part of the first connecting rod (831) and the second connecting rod (832), and the other end of the fifth connecting rod (835) is hinged with the hinged part of the third connecting rod (833) and the fourth connecting rod (834);

one end of the first guide post (836) is fixedly connected with the cross beam (839), the other end of the first guide post is fixedly connected with the first base (840), and the upper moving blade (81) is slidably mounted on the first guide post (836); the first guide post (836) is used for limiting the upper moving knife (81) to move back and forth only along the length direction of the first guide post (836) so as to be close to and far away from the lower fixed knife (82) to realize the cutting action.

2. The cross cutting machine according to claim 1, characterized in that the upper roll (20) and/or the lower roll (30) are rotatably connected with the slide (50) by means of bearings.

3. The cross-cutting machine according to claim 3, characterized in that the slider (50) comprises a through hole (51) arranged in its center, the bearing being arranged in the through hole (51); the outer ring of the bearing is fixedly connected with the side wall of the through hole (51), and two ends of the upper roller (20) and/or the lower roller (30) are fixedly connected with the inner ring of the bearing.

4. The cross-cutting machine according to claim 3, characterized in that the first supporting frame (10) is provided with a strip-shaped through groove (11), the side wall of the strip-shaped through groove is provided with a guide rail (12), and the sliding block (50) is connected with the first supporting frame (10) in a sliding manner through the guide rail (12).

5. The cross cutting machine according to claim 3, characterized in that the cutting device further comprises a guiding mechanism, the guiding mechanism comprises a driving guiding roller (91), a driven guiding roller (92) located below the driving guiding roller (91), and a motor assembly (93) for driving the driving guiding roller (91) to rotate, and a gap is arranged between the driving guiding roller (91) and the driven guiding roller (92).

6. The cross-cutting machine according to claim 1, characterized in that the cutting assembly further comprises a second base (94), the second base (94) being fixedly arranged on top of the beam (839), the pneumatic cylinder (837) being hinged with the second base (94) with respect to the other end of its piston rod.

7. The cross cutting machine according to claim 1, characterized in that the upper moving blade (81) and the lower stationary blade (82) are arranged offset in the horizontal direction.

8. The cross-cutting machine of claim 1, characterized in that the first guide post (836) is perpendicular to both the first base (840) and the cross beam (839).

9. The crosscutting machine of any of claims 1-8, further comprising a feed bin; the feeding bin comprises a bin body with an arc-shaped bottom, the arc-shaped bottom is formed by a plurality of bottom rollers (61) which are arranged at intervals in parallel, and the bottom rollers (61) are arranged in parallel with the upper roller (20).

10. The cross-cutting machine according to claim 9, characterized in that side rollers (62) are provided on the left and right side walls of the cartridge body, the side rollers (62) being perpendicular to the bottom roller (61).