CN111438566B - Cutting tool monitoring device based on non-Newtonian fluid principle automatic fixation and early warning - Google Patents
Cutting tool monitoring device based on non-Newtonian fluid principle automatic fixation and early warning Download PDFInfo
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- CN111438566B CN111438566B CN202010306689.6A CN202010306689A CN111438566B CN 111438566 B CN111438566 B CN 111438566B CN 202010306689 A CN202010306689 A CN 202010306689A CN 111438566 B CN111438566 B CN 111438566B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 40
- 239000012530 fluid Substances 0.000 title claims abstract description 20
- 238000012806 monitoring device Methods 0.000 title claims abstract description 10
- 238000003825 pressing Methods 0.000 claims description 12
- 229920002401 polyacrylamide Polymers 0.000 claims description 3
- 244000309464 bull Species 0.000 abstract description 8
- 239000011435 rock Substances 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 208000034189 Sclerosis Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
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- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
- B23Q17/0952—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
- B23Q15/12—Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/12—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring vibration
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Abstract
The invention relates to the technical field of cutting processing equipment, and discloses a cutter monitoring device capable of automatically fixing and early warning based on a non-Newtonian fluid principle, which comprises a shell, wherein a cutter is movably connected inside the shell; the cutter rocks and arouses sloping piece rebound and drives the rotary column and take place to rotate, provide the power supply for subsequent fixed operation, increase the power supply between the structure, the bull stick rotates the circle inslot that makes both sides clamp plate all remove to the cutter, fix the cutter, when making the cutter during operation take place to rock, it is automatic to fix the cutter, avoid because the cutter uses for a long time, reduce the stability that the cutter used, the condition of cutting skew appears, make the cutting quality obtain guaranteeing, left side L type pole moves left and arouses that the dielectric plate removes between the positive plate and the negative plate of electrode plate group, automatic switch on, trigger the alarm, the behavior of monitoring cutter, the automatic suggestion staff is in time to handle, effectively improve cutting quality and cutting efficiency.
Description
Technical Field
The invention relates to the technical field of cutting processing equipment, in particular to a cutter monitoring device capable of automatically fixing and early warning based on a non-Newtonian fluid principle.
Background
Cutting is a physical action. Cutting in the narrow sense means cutting an object with a sharp tool such as a knife; cutting in the broad sense means breaking an object under pressure or high temperature by means of a tool, such as a machine tool, a flame, etc. With the development of the modern machining industry, the requirements on the cutting quality and precision are continuously improved, and the requirements on improving the production efficiency, reducing the production cost and having a high-intelligent automatic cutting function are also improved. The development of the numerical control cutting machine has to meet the requirements of the development of the modern mechanical processing industry. The cutting machine is applied to metal and nonmetal industries, generally, the nonmetal industries are more delicate, such as a laser cutting machine for cutting cloth, plastics and chemical fiber products, a blade type cutting machine, a flame cutting machine for cutting metal materials and a plasma cutting machine. Of which the blade cutter is the most common cutting and machining equipment.
When the blade type cutting machine is used, materials are cut by means of a high-speed rotating cutter, but when the cutter is close to the materials, the cutter is in a high-speed collision state with the materials and receives reverse impact force of the materials, when the blade type cutting machine is used for a long time, the cutter can be easily loosened or deviated, the cutting quality of the materials is affected, the cutting precision of the materials is reduced, and the cutting efficiency is greatly reduced.
Aiming at the defects of the prior art, the invention provides a cutter monitoring device capable of automatically fixing and early warning based on a non-Newtonian fluid principle, which has the advantages of automatic fixing and early warning, solves the problems of poor cutting quality and incapability of timely replacing cutters, automatically fixes a cutter when the cutter shakes during working by utilizing the non-Newtonian fluid principle, avoids the problems that the stability of the cutter is reduced and the cutting deviation occurs due to long-term use of the cutter, ensures the cutting quality, automatically switches on a power supply, triggers an alarm, monitors the working condition of the cutter, automatically prompts a worker to timely treat the cutter, and effectively improves the cutting quality and the cutting efficiency.
Disclosure of Invention
Technical scheme (I)
In order to realize the purposes of automatic fixing and early warning, the invention provides the following technical scheme: the cutter monitoring device based on the non-Newtonian fluid principle automatic fixation and early warning comprises a shell, a cutter, a push plate, a movable frame, an L-shaped rod, an inclined block, a rotary column, a rotary rod, a connecting rod, a push rod, a movable plate, a pressing plate, an electrode plate group and a dielectric plate.
Wherein:
the position and connection relationship among the structures are as follows:
a cutter monitoring device capable of automatically fixing and early warning based on a non-Newtonian fluid principle comprises a shell, wherein a cutter is movably connected inside the shell, two sides of the cutter are respectively provided with a ring groove, the outer side of the cutter is fixedly connected with a push plate, the push plates are two and have the same size, the outer side of the push plate is movably connected with a moving frame, the bottom of the moving frame is fixedly connected with a groove plate, the inside of the moving frame is provided with a hole, a gap formed by the hole and the push plate is internally provided with non-Newtonian fluid, the main component of the non-Newtonian fluid is polyacrylamide, one side of the moving frame far away from the push plate is fixedly connected with an L-shaped rod, the L-shaped rod is in an inverted state, the outer side of a vertical rod is fixedly connected with a limiting block, the outer side of the limiting block is fixedly connected with an inclined, the outside swing joint of L type pole has the sloping block, and the sloping block presents the right angle trapezoidal form, and its inclined plane is hugged closely with the rotary column all the time, and the outside swing joint of sloping block has the rotary column, the outside fixedly connected with bull stick of rotary column.
The outer side of the rotating rod is movably connected with four connecting rods with the same size, every two connecting rods are in a group, each group of connecting rods is movably connected with the outer side of the rotating rod, the two connecting rods in each group are symmetrically distributed by taking the central axis of the rotating rod as a reference, one side of each connecting rod, which is far away from the rotating rod, is movably connected with a push rod, the push rods are in an inverted Z shape, the joints of the lower transverse rods and the inclined rods of the push rods are movably connected with the inner wall of the shell, the outer side of each push rod is movably connected with a moving plate, the outer side of each moving plate is movably connected with a rotating rod, one side of each rotating rod, which is far away from the moving plate, is movably connected with the inner wall of the shell, the outer sides of the moving plates are fixedly connected with four pressing plates with the same size, every two pressing plates are, the electrode plate group comprises positive plate and negative plate, and the outside fixedly connected with spacing pipe of electrode plate group, electrode plate group's outside swing joint has dielectric plate, and dielectric plate is located the top of left side L type pole upper boom, and dielectric plate's top swing joint has the spring.
(II) advantageous effects
Compared with the prior art, the invention provides a cutting tool monitoring device capable of automatically fixing and early warning based on the non-Newtonian fluid principle, which has the following beneficial effects:
1. through the combined action of cutter, removal frame, push pedal, sloping block and commentaries on classics post, the cutter rocks and makes the non-Newtonian fluid sclerosis in removal frame hole and the push pedal space to promote to remove the whole cutter of keeping away from of frame, arouse the sloping block rebound and drive the commentaries on classics post and take place to rotate, provide the power supply for subsequent fixed operation, increase the power supply between the structure, it is more convenient to make the operation.
2. Through the combined action of bull stick, clamp plate and cutter, the bull stick rotates and makes both sides clamp plate all remove to the circle inslot of cutter, fixes the cutter, when making cutter during operation take place to rock, fixes the cutter automatically, avoids because the cutter uses for a long time, reduces the stability that the cutter used, the condition of cutting skew appears, makes the cutting quality obtain guaranteeing.
3. Through L type pole, stride to one side, dielectric plate and electrode plate group's combined action, left side L type pole moves left and makes the sloping block shift up to the stopper of left side L type pole montant promotes dielectric plate and removes between electrode plate group's positive plate and negative plate, and automatic switch on triggers the alarm, monitors the behavior of cutter, and the automatic suggestion staff in time handles, effectively improves cutting quality and cutting efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the structures of FIG. 1 according to the present invention;
FIG. 3 is a schematic view showing the connection relationship between the push plate and the rotary column;
FIG. 4 is a schematic view of the connection between the rotating rod and the pressing plate according to the present invention.
In the figure: 1. a housing; 2. a cutter; 3. pushing the plate; 4. moving the frame; 5. an L-shaped rod; 6. a sloping block; 7. turning the column; 8. a rotating rod; 9. a connecting rod; 10. a push rod; 11. moving the plate; 12. pressing a plate; 13. an electrode plate group; 14. a dielectric plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a cutter monitoring device based on non-newtonian fluid principle automatic fixation and early warning comprises a housing 1, a cutter 2 movably connected to the interior of the housing 1, two circular grooves formed on both sides of the cutter 2 and symmetrically distributed with reference to the central axis of the cutter 2, a push plate 3 fixedly connected to the exterior of the cutter 2, two push plates 3 having the same size and respectively distributed on both sides of the cutter 2, a movable frame 4 movably connected to the exterior of the push plate 3, a slotted plate fixedly connected to the bottom of the movable frame 4, a hole formed in the interior of the movable frame 4, a non-newtonian fluid disposed in a gap formed by the hole and the push plate 3, the non-newtonian fluid mainly comprises polyacrylamide, an L-shaped rod 5 fixedly connected to one side of the movable frame 4 away from the push plate 3, the L-shaped rod 5 being in an inverted state, and a limit block fixedly connected to the exterior of, the outer side of the limiting block is fixedly connected with an inclined block 6, the outer side of the cross rod is movably connected with a spring, one side of the spring, which is far away from the cross rod, is fixedly connected with a fixed block, the outer side of the fixed block is movably connected with a rotating column 7, when the L-shaped rod 5 moves to the left, the inclined block 6 is driven to move upwards by the limiting block, the inclined block 6 is movably connected with the outer side of the L-shaped rod 5, the inclined block 6 is in a right-angled trapezoid shape, its inclined plane is hugged closely with rotary column 7 all the time, drive rotary column 7 and rotate when making sloping block 6 rebound, the outside swing joint of sloping block 6 has rotary column 7, the outside fixedly connected with bull stick 8 of rotary column 7, the outside swing joint of bull stick 8 has connecting rod 9, connecting rod 9 has four and the size is the same, per two connecting rods 9 are a set of, the equal swing joint of every group connecting rod 9 is in the outside of bull stick 8, two connecting rods 9 of every group use the axis of bull stick 8 to present the symmetric distribution as the reference.
One side of the connecting rod 9 far away from the rotating rod 8 is movably connected with a push rod 10, the push rod 10 is in an inverted Z shape, the joint of a lower cross rod and a diagonal rod is movably connected with the inner wall of the shell 1, the outer side of an upper cross rod is movably connected with a movable plate 11, the outer side of the push rod 10 is movably connected with a movable plate 11, the outer side of the movable plate 11 is movably connected with a rotary rod, one side of the rotary rod far away from the movable plate 11 is movably connected with the inner wall of the shell 1, the outer side of the movable plate 11 is fixedly connected with press plates 12, the four press plates 12 are the same in size, every two press plates 12 are a group, the left and right groups of press plates 12 are symmetrically distributed by taking the central axis of the cutter 2 as the reference, the size of the press plates 12 is matched with the size of the circular groove of the cutter, dielectric plate 14 is movably connected to the outer side of electrode plate group 13, dielectric plate 14 is located on the top of upper rod of left L-shaped rod 5, a spring is movably connected to the top of dielectric plate 14, and dielectric plate 14 is located between positive plate and negative plate of electrode plate group 13.
The working process and the principle of the device are as follows:
cutter 2 is when using, if appear rocking or when shaking by a wide margin, cutter 2 passes through push pedal 3 with the impact of abruptness and passes to the non-Newton's fluid in 4 holes of removal frame and the 3 spaces of push pedal, the hardening of non-Newton's fluid is and receive the thrust of push pedal 3, it keeps away from cutter 2 to drive removal frame 4 whole, removal frame 4 drives L type pole 5 synchronous motion in the outside, because the sloping block 6 passes through the montant swing joint of stopper and L type pole 5, the stopper movable sleeve is in the outside of montant, and sloping block 6 presents the right trapezoid shape, its inclined plane is hugged closely with rotary column 7 all the time, make L type pole 5 promote sloping block 6 and paste rotary column 7 rebound, the spring between L type pole 5 and the fixed block of rotary column 7 bottom takes place the compression, it takes place to rotate to drive rotary column 7 when sloping block 6.
The rotary column 7 drives the rotary rod 8 on the outer side to rotate, the rotary rod 8 pulls the push rod 10 to rotate by taking the joint of the rotary rod and the shell 1 as a rotating point through the connecting rod 9 on the outer side, the push rod 10 pushes the movable plate 11 to be close to the cutter 2 while keeping away from each other, the movable plate 11 drives the rotary rod on the outer side to rotate by taking the joint of the movable plate 11 and the shell 1 as a rotating point, the movable plate 11 is supported and assisted to move, the movable plate 11 drives the pressing plate 12 to be close to the circular groove of the cutter 2, the pressing plates 12 on the two sides are enabled to move to the circular groove of the cutter 2, and the cutter 2 is.
When the left L-shaped rod 5 is far away from the cutter 2 and drives the inclined block 6 to move upwards, the limiting block of the vertical rod of the left L-shaped rod 5 moves upwards to be close to the dielectric plate 14 and pushes the dielectric plate 14 to extrude a spring on the outer side of the dielectric plate, the limiting block moves between the positive plate and the negative plate of the electrode plate group 13, the facing area of the dielectric plate 14 and the electrode plate group 13 is increased, the dielectric constant epsilon is increased, the capacitance C of the dielectric plate 14 is increased at the moment, the power supply is switched on, and an alarm is triggered at the moment to prompt a worker to process.
When the area of dielectric plate 14 facing electrode plate group 13 increases, capacitance C increases, and power is turned on, and the expression is as follows:
C＝εS/4πkd
at this time, the dielectric constant ε is increased, and the facing area S is increased, that is, the capacitance C is increased.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The utility model provides a cutter monitoring devices based on non-Newtonian fluid principle automatic fixation and early warning, includes shell (1), its characterized in that: the cutting tool is characterized in that a cutting tool (2) is movably connected inside the shell (1), a push plate (3) is fixedly connected to the outer side of the cutting tool (2), a moving frame (4) is movably connected to the outer side of the push plate (3), an L-shaped rod (5) is fixedly connected to one side, away from the push plate (3), of the moving frame (4), an inclined block (6) is movably connected to the outer side of the L-shaped rod (5), a rotating column (7) is movably connected to the outer side of the inclined block (6), a rotating rod (8) is fixedly connected to the outer side of the rotating column (7), a connecting rod (9) is movably connected to the outer side of the rotating rod (8), a push rod (10) is movably connected to one side, away from the rotating rod (9), a moving plate (11) is movably connected to the outer side of the push rod (10), a pressing plate (12) is fixedly connected to the outer side of the moving plate (11; two sides of the cutter (2) are provided with ring grooves, the push plates (3) are two and have the same size, the bottom of the movable frame (4) is fixedly connected with a groove plate, a hole is formed in the movable frame (4), a gap formed by the hole and the push plates (3) is internally provided with non-Newtonian fluid, and the main component of the non-Newtonian fluid is polyacrylamide; the L-shaped rod (5) is in an inverted state, the outer side of a vertical rod of the L-shaped rod is fixedly connected with a limiting block, the outer side of the limiting block is fixedly connected with an inclined block (6), the outer side of a transverse rod of the L-shaped rod is movably connected with a spring, one side of the spring, far away from the transverse rod, is fixedly connected with a fixed block, and the outer side of the fixed block is movably connected with a rotating column; the inclined blocks (6) are in a right-angle trapezoid shape, inclined planes of the inclined blocks are always attached to the rotary columns (7), four connecting rods (9) are same in size, every two connecting rods (9) form a group, each group of connecting rods (9) is movably connected to the outer side of each rotary rod (8), and the two connecting rods (9) of each group are symmetrically distributed by taking the central axis of each rotary rod (8) as a reference; the push rod (10) is in an inverted Z shape, the joint of the lower cross rod and the inclined rod of the push rod is movably connected with the inner wall of the shell (1), the outer side of the movable plate (11) is movably connected with a rotating rod, and one side of the rotating rod, which is far away from the movable plate (11), is movably connected with the inner wall of the shell (1); the four pressing plates (12) are same in size, every two pressing plates (12) form a group, the left and right groups of pressing plates (12) are symmetrically distributed by taking the central axis of the cutter (2) as a reference, and the sizes of the pressing plates (12) are matched with the size of the circular groove of the cutter (2); the electrode plate group (13) is composed of a positive plate and a negative plate, a limiting tube is fixedly connected to the outer side of the electrode plate group (13), a dielectric plate (14) is located on the top of the upper rod of the left L-shaped rod (5), and a spring is movably connected to the top of the dielectric plate (14).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010306689.6A CN111438566B (en) | 2020-04-17 | 2020-04-17 | Cutting tool monitoring device based on non-Newtonian fluid principle automatic fixation and early warning |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010306689.6A CN111438566B (en) | 2020-04-17 | 2020-04-17 | Cutting tool monitoring device based on non-Newtonian fluid principle automatic fixation and early warning |
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| CN111438566A CN111438566A (en) | 2020-07-24 |
| CN111438566B true CN111438566B (en) | 2021-05-25 |
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| CN112171319A (en) * | 2020-09-21 | 2021-01-05 | 广州优品工程有限公司 | A panel processing auxiliary device for building materials field |
| CN113611062B (en) * | 2021-09-30 | 2022-01-11 | 南通围界盾智能科技有限公司 | Passive tension fence intrusion detection system |
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|---|---|---|---|---|
| GB436451A (en) * | 1934-04-06 | 1935-10-07 | Wilhelm Hagen | Improvements in or relating to slicing machines particularly for alimentary products |
| US3623388A (en) * | 1969-03-27 | 1971-11-30 | Glanzstoff Ag | Reciprocating knife cutter for the cutting of fiber cables foils and the like |
| CN1138514A (en) * | 1995-03-31 | 1996-12-25 | 精工爱普森株式会社 | Cutter, cutter manufacturing method, and belt end shaping and cutting device |
| CN203697070U (en) * | 2014-01-23 | 2014-07-09 | 张家港市三星银屏器材有限公司 | Automatic cutting device for coiled materials |
| CN203956968U (en) * | 2014-01-13 | 2014-11-26 | 浙江鼎业机械设备有限公司 | A kind of sanitary paper towel cutting machine |
| CN206084381U (en) * | 2016-08-19 | 2017-04-12 | 天津腾跃精模有限公司 | Elevator work piece side cut perforating device |
-
2020
- 2020-04-17 CN CN202010306689.6A patent/CN111438566B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB436451A (en) * | 1934-04-06 | 1935-10-07 | Wilhelm Hagen | Improvements in or relating to slicing machines particularly for alimentary products |
| US3623388A (en) * | 1969-03-27 | 1971-11-30 | Glanzstoff Ag | Reciprocating knife cutter for the cutting of fiber cables foils and the like |
| CN1138514A (en) * | 1995-03-31 | 1996-12-25 | 精工爱普森株式会社 | Cutter, cutter manufacturing method, and belt end shaping and cutting device |
| CN203956968U (en) * | 2014-01-13 | 2014-11-26 | 浙江鼎业机械设备有限公司 | A kind of sanitary paper towel cutting machine |
| CN203697070U (en) * | 2014-01-23 | 2014-07-09 | 张家港市三星银屏器材有限公司 | Automatic cutting device for coiled materials |
| CN206084381U (en) * | 2016-08-19 | 2017-04-12 | 天津腾跃精模有限公司 | Elevator work piece side cut perforating device |
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| CN111438566A (en) | 2020-07-24 |
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