CN209970804U - Rubber tube cutting device - Google Patents
Rubber tube cutting device Download PDFInfo
- Publication number
- CN209970804U CN209970804U CN201920258415.7U CN201920258415U CN209970804U CN 209970804 U CN209970804 U CN 209970804U CN 201920258415 U CN201920258415 U CN 201920258415U CN 209970804 U CN209970804 U CN 209970804U
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- Prior art keywords
- clamping member
- driving assembly
- connecting rod
- guide rail
- rubber tube
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- Expired - Fee Related
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- 238000005520 cutting process Methods 0.000 title claims abstract description 52
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000004224 protection Effects 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 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
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model provides a rubber tube cutting device, include: the workstation, a machine support, cutting mechanism, positioning mechanism, conveying mechanism and length adjustment mechanism, wherein length adjustment mechanism includes the guide rail, second drive assembly, pillar and connecting rod, the guide rail is arranged along workstation length direction, pillar and guide rail sliding connection, second drive assembly drive is connected the pillar and can be driven the pillar along guide rail reciprocating motion, the connecting rod arrange along guide rail length direction and with pillar fixed connection, the one end that the connecting rod is close to positioning mechanism is provided with a plurality of springs along circumference, the spring is kept away from connecting rod one end and is fixed with the arc iron sheet, the connecting rod is equipped with the inside electro-magnet that is equipped with of one end of spring. The utility model discloses can cut the rubber tube of corresponding length according to the actual demand, avoid the rubber tube skew transmission and the cutting direction in the transmission, improve the precision of cutting simultaneously, accord with the demand of production.
Description
Technical Field
The utility model relates to a rubber tube cutting technical field, concretely relates to rubber tube cutting device.
Background
The rubber tube has good physiological inertia, ultraviolet resistance, ozone resistance, high and low temperature resistance, high transparency, strong resilience, compression permanent deformation resistance, oil resistance, stamping resistance, acid and alkali resistance, wear resistance, flame retardancy, voltage resistance, electric conduction and other performances, and is widely applied to various industries and fields of electric appliances, medical equipment, machinery, vehicles, hardware and the like. Traditional rubber tube cutting device, the cutting length of unable location pipe material, cutting accuracy is poor, and the pipe material of cutting out can not accord with the demand of production.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem that the background art exists, the utility model provides a rubber tube cutting device.
The utility model provides a pair of rubber tube cutting device, include: a workbench, a frame, a cutting mechanism and a positioning mechanism, conveying mechanism and length adjustment mechanism, the rack-mount is on the workstation, cutting mechanism installs in frame one side and can reciprocate, positioning mechanism installs on the workstation and corresponds and cutting mechanism, conveying mechanism installs the one side of keeping away from positioning mechanism in the frame, length adjustment mechanism installs the one side of keeping away from the frame at positioning mechanism, length adjustment mechanism includes the guide rail, second drive assembly, pillar and connecting rod, the guide rail is arranged along workstation length direction, pillar and guide rail sliding connection, second drive assembly drive connection pillar and can drive pillar along guide rail reciprocating motion, the connecting rod is arranged along guide rail length direction and with pillar fixed connection, the one end that the connecting rod is close to positioning mechanism is provided with a plurality of springs along circumference, the spring is kept away from connecting rod one end and is fixed with the arc iron sheet, the inside electro-magnet that is equipped with the one end of spring.
Preferably, the cutting mechanism comprises a cutter and a first driving component, the first driving component is mounted on the frame, and the cutter is mounted on the first driving component and can be driven by the first driving component to move up and down.
Preferably, the positioning mechanism comprises a first clamping piece, a second clamping piece and a third driving assembly, the first clamping piece and the third clamping piece are arranged oppositely, the first clamping piece and the second clamping piece are matched and can be used for clamping the rubber tube, the third driving assembly is respectively in driving connection with the first clamping piece and the second clamping piece and can drive the first clamping piece and the second clamping piece to be close to or far away from each other, and positioning grooves corresponding to the thickness of the cutter main body are respectively formed in the first clamping piece and the second clamping piece.
Preferably, the guide rail is provided with scales, and the position of the positioning groove is taken as a zero point.
Preferably, the conveying mechanism comprises a first vertical plate, a third vertical plate, a driving roller, a driven roller and a fourth driving assembly, the first vertical plate and the third vertical plate are symmetrically arranged on one side, far away from the positioning mechanism, of the rack, two ends of the driving roller and two ends of the driven roller are respectively in rotating connection with the first vertical plate and the third vertical plate, the driving roller and the driven roller can be close to or far away from each other, a first guide groove is formed in the circumferential surface of the driving roller, a third guide groove is formed in the circumferential surface of the driven roller, and a material walking space for stably conveying the rubber tubes is formed between the first guide groove and the third guide groove.
Preferably, the rubber tube clamping device further comprises a third clamping piece, a fourth clamping piece and a fifth driving assembly, the third clamping piece and the fourth clamping piece are symmetrically arranged on the upper side and the lower side of the connecting rod, the fifth driving assembly is installed on the supporting column and is respectively in driving connection with the third clamping piece and the fourth clamping piece and can drive the third clamping piece and the fourth clamping piece to be close to or far away from each other, and the third clamping piece and the fourth clamping piece can be matched to clamp the rubber tube.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the length of the cut rubber tube can be adjusted by arranging the length adjusting mechanism, so that different production requirements are met;
(2) be favorable to length adjustment mechanism grafting rubber tube through setting up positioning mechanism, improved the precision of cutting simultaneously, accord with the demand of production.
(3) Be favorable to the rubber tube to stabilize the transmission through setting up conveying mechanism, avoid the rubber tube skew transmission in the transmission and cutting direction.
(4) The utility model discloses applicable in the rubber tube of different specifications, enlarged application scope.
Drawings
Fig. 1 is the utility model provides a structural schematic diagram of rubber tube cutting device.
Fig. 2 is the utility model provides a conveying mechanism's of rubber tube cutting device structural schematic.
Fig. 3 is a schematic structural diagram of a positioning mechanism of the rubber tube cutting device provided by the utility model.
Detailed Description
Referring to fig. 1, the utility model provides a rubber tube cutting device, include: the cutting machine comprises a workbench 1, a rack 2, a cutting mechanism 3, a positioning mechanism 4, a conveying mechanism 5 and a length adjusting mechanism 6, wherein the rack 2 is installed on the workbench 1, the cutting mechanism 3 is installed on one side of the rack and can move up and down, the positioning mechanism 4 is installed on the workbench 1 and corresponds to the cutting mechanism 3, the conveying mechanism 5 is installed on one side of the rack 2 far away from the positioning mechanism 4, the length adjusting mechanism 6 is installed on one side of the positioning mechanism 4 far away from the rack 2, the length adjusting mechanism 6 comprises a guide rail 61, a second driving assembly 62, a support 63 and a connecting rod 64, the guide rail 61 is arranged along the length direction of the workbench 1, the support 63 is in sliding connection with the guide rail 61, the second driving assembly 62 drives the connecting support 63 and can drive the support 63 to move back and forth along the guide rail 61, the connecting rod 64 is arranged along the length direction of the guide rail 61 and is, an arc iron sheet 66 is fixed at one end of the spring 65 far away from the connecting rod 64, and an electromagnet is arranged inside one end of the connecting rod 64, which is provided with the spring 65.
The utility model discloses structural configuration is reasonable, can cut the rubber tube of corresponding length according to actual demand through setting up cutting mechanism 3, positioning mechanism 4, conveying mechanism 5 and length adjustment mechanism 6, avoids the skew transmission of rubber tube in the transmission and cutting direction, has improved the precision of cutting simultaneously, accords with the demand of production.
The second driving assembly comprises a motor and a lead screw, an output shaft of the motor is fixedly connected with the lead screw, the lead screw is in threaded connection with the support, the lead screw lever is installed in the guide rail, and the motor rotates to drive the lead screw to rotate and is in threaded connection with the lead screw, so that the support moves along the guide rail.
In the present embodiment, the cutting mechanism 3 includes a cutter 31 and a first driving assembly 32, the first driving assembly 32 is mounted on the frame 2, and the cutter 31 is mounted on the first driving assembly 32 and can be driven by the first driving assembly to move up and down. The first driving assembly is a cylinder, a motor, a screw rod or an electric push rod and the like.
Referring to fig. 3, in this embodiment, the positioning mechanism 4 includes a first clamping member 41, a second clamping member 42, and a third driving assembly 43, the first clamping member 41 and the second clamping member 42 are disposed opposite to each other, the first clamping member 41 and the second clamping member 42 are matched to clamp the rubber hose, the third driving assembly 43 is respectively connected to the first clamping member 41 and the second clamping member 42 in a driving manner and can drive the first clamping member 41 and the second clamping member 42 to approach or move away from each other, and the first clamping member 41 and the second clamping member 42 are respectively provided with a positioning groove 44 corresponding to the thickness of the main body of the cutter 31. When cutting, the work of third drive assembly, first holder 41 and second holder 42 are close to each other with the centre gripping rubber tube, and the rubber tube removes the problem that leads to not complying with the production requirement when avoiding cutting, through seting up constant head tank 44, can improve the precision of cutting, improves the cutting quality. The third driving assembly comprises a clamping cylinder, a motor, a screw rod or an electric push rod and the like. When the third driving assembly is the clamping cylinder, the bottom of the cylinder barrel of the clamping cylinder is fixed on the workbench 1, piston rods which can be in sliding connection with the cylinder barrel of the clamping cylinder are respectively arranged on two sides of the rubber tube conveyed by the clamping cylinder, one end, far away from the cylinder barrel, of each piston rod is fixedly connected with the first clamping piece 41 and the second clamping piece 42 respectively, the piston rods extend out of the cylinder barrel of the clamping cylinder to drive the first clamping piece 41 and the second clamping piece 42 to be far away from each other, and the piston rods shrink towards the cylinder barrel of the clamping cylinder to drive the first clamping piece 41 and the second clamping piece 42 to be close to each other.
In the present embodiment, the guide rail 61 is provided with a scale with the position of the positioning groove 44 as a zero point. Through setting up the scale, can know the length of rubber tube clearly, the accurate cutting that cuts.
Referring to fig. 2, in the present embodiment, the conveying mechanism 5 includes a first vertical plate 51, a third vertical plate 52, a driving roller 53, a driven roller 54, and a fourth driving assembly 55, the first vertical plate 51 and the third vertical plate 52 are symmetrically disposed on a side of the frame 2 away from the positioning mechanism 4, two ends of the driving roller 53 and two ends of the driven roller 54 are respectively rotatably connected to the first vertical plate 51 and the third vertical plate 52, and the driving roller 53 and the driven roller 54 can approach or separate from each other, a first guiding groove is disposed on a circumferential surface of the driving roller 53, a third guiding groove is disposed on a circumferential surface of the driven roller 54, and a feeding space for stably conveying the rubber tubes is formed between the first guiding groove and the third guiding groove. The fourth driving component is a motor, an output shaft of the motor is fixedly connected with a shaft of the driving roller 53, the motor works, the driving roller 53 rotates along with the rotation of the output shaft of the motor, and the driving roller 53 and the driven roller 54 are matched to enable the rubber tube located in the feeding space to be stably conveyed, so that the rubber tube in conveying is prevented from deviating from the conveying and cutting directions. Further, the drive roller 53 and the driven roller 54 can be moved close to or away from each other, and the range of use is expanded by adjusting the distance between the drive roller 53 and the driven roller 54 to be suitable for rubber tubes of different specifications.
In this embodiment, the rubber tube clamping device further comprises a third clamping piece 67, a fourth clamping piece 68 and a fifth driving assembly 69, the third clamping piece 67 and the fourth clamping piece 68 are symmetrically arranged on the upper side and the lower side of the connecting rod 64, the fifth driving assembly 69 is mounted on the supporting column 63, the fifth driving assembly 69 is respectively in driving connection with the third clamping piece 67 and the fourth clamping piece 68 and can drive the third clamping piece 67 and the fourth clamping piece 68 to approach or separate from each other, the third clamping piece 67 and the fourth clamping piece 68 can be matched to clamp the rubber tube, and the rubber tube is prevented from being deformed due to overlarge elastic force of the spring 65. The third clamping piece 67 and the fourth clamping piece 68 are driven to work through the fifth driving assembly 69 and are close to each other to clamp the rubber tube sleeved on the connecting rod 64, the rubber tube is clamped tightly by matching with the arc-shaped iron sheet 66, the rubber tube is prevented from falling off in the moving process, and the stability of the cutting device is improved. The fifth driving component is a clamping cylinder, a motor, a screw rod or an electric push rod and the like. When the fifth driving assembly is a clamping cylinder, the cylinder barrel of the clamping cylinder is fixed on the pillar 63, piston rods which can be in sliding connection with the cylinder barrel of the clamping cylinder are arranged on the upper side and the lower side of the clamping cylinder respectively, one end, far away from the cylinder barrel, of each piston rod is fixedly connected with the third clamping piece 67 and the fourth clamping piece 68 respectively, the piston rods extend out of the cylinder barrel of the clamping cylinder to drive the third clamping piece 67 and the fourth clamping piece 68 to be far away from each other, and the piston rods shrink towards the cylinder barrel of the clamping cylinder to drive the third clamping piece 67 and the fourth clamping piece 68 to be close to each other.
In specific implementation, a rubber tube to be cut is placed in a feeding space between a driving roller 53 and a driven roller 54, a fourth driving assembly 55 works to drive the driving roller 53 to rotate, the driving roller 53 and the driven roller 54 are matched to move the rubber tube in the feeding space, when the end of the rubber tube moves to a corresponding positioning mechanism 4, the fourth driving assembly 55 stops working, a third driving assembly 43 works to enable a first clamping piece 41 and a second clamping piece 42 to be close to each other to clamp the rubber tube, a second driving assembly 62 works to drive a support column 63 to move to the positioning mechanism along a guide rail 61 to enable a connecting rod 64 to extend into the rubber tube, the second driving assembly 62 stops working, an electromagnet is powered off, a spring 65 resets, an arc-shaped iron sheet 66 abuts against the inner wall of the rubber tube, a fifth driving assembly 69 works to enable a third clamping piece 67 and a fourth clamping piece 68 to be close to each other and to be matched with the arc-shaped iron sheet 66 to clamp the rubber tube, the third driving assembly 43 works to make the first clamping piece 41 and the second clamping piece 42 move away from each other to loosen the rubber tube, the fourth driving assembly 55 and the second driving assembly 62 work to make the first clamping piece 41 and the second clamping piece 42 move away from the positioning mechanism along the guide rail 61, the length of the rubber tube at the moment can be known through the scales on the guide rail 61, when the second driving assembly moves to the required scales, the second driving assembly 62 stops working, the third driving assembly 43 works to make the first clamping piece 41 and the second clamping piece 42 approach each other to clamp the rubber tube, the first driving assembly 32 works to drive the cutter 31 to move downwards to enter the positioning groove 44 to cut the rubber tube, the cutting is completed, the first driving assembly 32 works to drive the cutter 31 to move upwards, the fifth driving assembly 69 works to make the third clamping piece 67 and the fourth clamping piece 68 move away from each other, the electromagnet is electrified, the arc-shaped iron sheet 66 is pressed by the magnetic force to press the spring 65 to be attached to the surface of the connecting rod, the cut rubber tube is removed, and then the second driving assembly 62 operates to drive the support 63 to move along the guide rail 61 toward the positioning mechanism 4 so that the connecting rod 64 extends into the rubber tube, and the cutting process is repeated.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A rubber tube cutting device, characterized by comprising: the cutting machine comprises a workbench (1), a rack (2), a cutting mechanism (3), a positioning mechanism (4), a conveying mechanism (5) and a length adjusting mechanism (6), wherein the rack (2) is installed on the workbench (1), the cutting mechanism (3) is installed on one side of the rack and can move up and down, the positioning mechanism (4) is installed on the workbench (1) and corresponds to the cutting mechanism (3), the conveying mechanism (5) is installed on one side, far away from the positioning mechanism (4), of the rack (2), the length adjusting mechanism (6) is installed on one side, far away from the rack (2), of the positioning mechanism (4), the length adjusting mechanism (6) comprises a guide rail (61), a second driving assembly (62), a support pillar (63) and a connecting rod (64), the guide rail (61) is arranged along the length direction of the workbench (1), the support pillar (63) is in sliding connection with the guide rail (61), the second driving assembly (62) is in driving connection with the support pillar (63) and can drive the support, the connecting rod (64) is arranged along the length direction of the guide rail (61) and is fixedly connected with the supporting column (63), a plurality of springs (65) are arranged at one end, close to the positioning mechanism (4), of the connecting rod (64) along the circumferential direction, an arc-shaped iron sheet (66) is fixed at one end, far away from the connecting rod (64), of each spring (65), and an electromagnet is arranged inside one end, provided with the corresponding spring (65), of the connecting rod (64).
2. The rubber hose cutting device according to claim 1, wherein the cutting mechanism (3) comprises a cutter (31) and a first driving assembly (32), the first driving assembly (32) is mounted on the frame (2), and the cutter (31) is mounted on the first driving assembly (32) and can be driven by the first driving assembly to move up and down.
3. The rubber pipe cutting device according to claim 2, wherein the positioning mechanism (4) comprises a first clamping member (41), a second clamping member (42) and a third driving assembly (43), the first clamping member (41) and the second clamping member (42) are arranged oppositely, the first clamping member (41) and the second clamping member (42) are matched and can be used for clamping the rubber pipe, the third driving assembly (43) is respectively connected with the first clamping member (41) and the second clamping member (42) in a driving mode and can drive the first clamping member (41) and the second clamping member (42) to be close to or far away from each other, and positioning grooves (44) corresponding to the thickness of the main body of the cutter (31) are respectively formed in the first clamping member (41) and the second clamping member (42).
4. Rubber tube cutting device according to claim 3, characterized in that the guide rail (61) is provided with a scale, taking the position of the positioning slot (44) as zero point.
5. The rubber hose cutting device according to claim 1, wherein the conveying mechanism (5) comprises a first vertical plate (51), a third vertical plate (52), a driving roller (53), a driven roller (54) and a fourth driving assembly (55), the first vertical plate (51) and the third vertical plate (52) are symmetrically arranged on one side, away from the positioning mechanism (4), of the rack (2), two ends of the driving roller (53) and two ends of the driven roller (54) are respectively in rotating connection with the first vertical plate (51) and the third vertical plate (52), the driving roller (53) and the driven roller (54) can be close to or far away from each other, a first guide groove is formed in the circumferential surface of the driving roller (53), a third guide groove is formed in the circumferential surface of the driven roller (54), and a feeding space for stably conveying the rubber hose is formed between the first guide groove and the third guide groove.
6. The rubber pipe cutting device according to any one of claims 1-5, further comprising a third clamping member (67), a fourth clamping member (68) and a fifth driving assembly (69), wherein the third clamping member (67) and the fourth clamping member (68) are symmetrically arranged on the upper side and the lower side of the connecting rod (64), the fifth driving assembly (69) is installed on the supporting column (63), the fifth driving assembly (69) is respectively in driving connection with the third clamping member (67) and the fourth clamping member (68) and can drive the third clamping member (67) and the fourth clamping member (68) to approach or move away from each other, and the third clamping member (67) and the fourth clamping member (68) can be matched for clamping a rubber pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920258415.7U CN209970804U (en) | 2019-02-28 | 2019-02-28 | Rubber tube cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920258415.7U CN209970804U (en) | 2019-02-28 | 2019-02-28 | Rubber tube cutting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209970804U true CN209970804U (en) | 2020-01-21 |
Family
ID=69253570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920258415.7U Expired - Fee Related CN209970804U (en) | 2019-02-28 | 2019-02-28 | Rubber tube cutting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209970804U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111687895A (en) * | 2020-06-22 | 2020-09-22 | 扬州润祥塑业有限公司 | Cutting device convenient to center, move, clamp and cut for electric power pipe production |
| CN112589863A (en) * | 2021-01-14 | 2021-04-02 | 广州洪茂科技有限公司 | PVC pipe cutting device that can range finding cutting |
| CN113070915A (en) * | 2021-01-13 | 2021-07-06 | 王连吉 | Pipe cutting machine for glass fiber insulating pipe |
| CN113400384A (en) * | 2021-05-11 | 2021-09-17 | 浙江都达新材料科技有限公司 | PVC tubular product production cutting equipment |
| CN113681604A (en) * | 2021-08-31 | 2021-11-23 | 翁杰 | Processing preparation facilities for synthetic rubber |
| CN117961999A (en) * | 2024-03-28 | 2024-05-03 | 济南羲和医疗器械有限公司 | Automatic tube cutting machine for medical silicone tube |
| CN117984373A (en) * | 2024-04-07 | 2024-05-07 | 国网山东省电力公司诸城市供电公司 | Spool cutting device that power supply unit used |
-
2019
- 2019-02-28 CN CN201920258415.7U patent/CN209970804U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111687895A (en) * | 2020-06-22 | 2020-09-22 | 扬州润祥塑业有限公司 | Cutting device convenient to center, move, clamp and cut for electric power pipe production |
| CN113070915A (en) * | 2021-01-13 | 2021-07-06 | 王连吉 | Pipe cutting machine for glass fiber insulating pipe |
| CN112589863A (en) * | 2021-01-14 | 2021-04-02 | 广州洪茂科技有限公司 | PVC pipe cutting device that can range finding cutting |
| CN112589863B (en) * | 2021-01-14 | 2021-09-07 | 新疆志成兴管业有限公司 | PVC pipe cutting device that can range finding cutting |
| CN113400384A (en) * | 2021-05-11 | 2021-09-17 | 浙江都达新材料科技有限公司 | PVC tubular product production cutting equipment |
| CN113400384B (en) * | 2021-05-11 | 2024-04-16 | 浙江都达新材料科技有限公司 | PVC tubular product production cutting equipment |
| CN113681604A (en) * | 2021-08-31 | 2021-11-23 | 翁杰 | Processing preparation facilities for synthetic rubber |
| CN117961999A (en) * | 2024-03-28 | 2024-05-03 | 济南羲和医疗器械有限公司 | Automatic tube cutting machine for medical silicone tube |
| CN117961999B (en) * | 2024-03-28 | 2024-05-28 | 济南羲和医疗器械有限公司 | Automatic tube cutting machine for medical silicone tube |
| CN117984373A (en) * | 2024-04-07 | 2024-05-07 | 国网山东省电力公司诸城市供电公司 | Spool cutting device that power supply unit used |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20200121 |