CN113478959B - Automatic avoidance structure and method for gold foil connector - Google Patents
Automatic avoidance structure and method for gold foil connector Download PDFInfo
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- CN113478959B CN113478959B CN202110688743.2A CN202110688743A CN113478959B CN 113478959 B CN113478959 B CN 113478959B CN 202110688743 A CN202110688743 A CN 202110688743A CN 113478959 B CN113478959 B CN 113478959B
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 186
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000011888 foil Substances 0.000 claims abstract description 137
- 239000010931 gold Substances 0.000 claims abstract description 55
- 229910052737 gold Inorganic materials 0.000 claims abstract description 55
- 238000001514 detection method Methods 0.000 claims abstract description 40
- 238000004364 calculation method Methods 0.000 claims description 16
- 238000005259 measurement Methods 0.000 claims description 6
- 230000000007 visual effect Effects 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- 230000009191 jumping Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
- B41F19/02—Apparatus or machines for carrying out printing operations combined with other operations with embossing
- B41F19/06—Printing and embossing between a negative and a positive forme after inking and wiping the negative forme; Printing from an ink band treated with colour or "gold"
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0009—Central control units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0036—Devices for scanning or checking the printed matter for quality control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2219/00—Printing presses using a heated printing foil
- B41P2219/20—Arrangements for moving, supporting or positioning the printing foil
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Labeling Devices (AREA)
Abstract
The invention provides an automatic evading structure and method of a gold foil connector, comprising the following steps: the foil feeding unit is arranged at the feeding end of the gold stamping plate and is used for conveying gold foil, and the conveying speed is controlled by the control unit; the detection unit is arranged on the gold foil conveying path between the gold stamping plate and the foil feeding unit and is used for detecting the gold foil connector; and the control unit is used for receiving the detection signal of the detection unit, and controlling the foil feeding unit to rapidly run when detecting that the gold foil connector is close to the gold stamping plate, and jumping to the gold stamping plate discharge end before the next work of the gold stamping plate. According to the automatic evading structure and method for the gold foil connector, original manual shutdown and manual removal of electrochemical aluminum are changed into a mode that the automatic evading structure and method do not need to be stopped, and the gold foil connector is detected by a sensor and automatically skips over the connector position. The waste of time is reduced, the production efficiency is improved, and the generation of waste products is avoided.
Description
Technical Field
The invention belongs to the field of post-press equipment, and particularly relates to an automatic avoidance structure and method for a gold foil connector.
Background
Hot stamping is the transfer of an aluminum layer in a gold foil onto a substrate surface using the principle of hot-pressing transfer to create a specific metallic effect, whereas the hot stamped gold foil is typically wound into a roll in a continuous, film-like ribbon form.
When a gold foil user orders gold foil from a supplier, a splice may occur on a roll of gold foil due to the custom length, and the gold foil of the splice portion is not available for stamping.
For joints present on gold foil, it is currently necessary for the operator to pay attention to the joint position at all times, when the gold foil is about to be used in the joint position, the equipment is manually stopped and the gold foil joint is removed outside the machine using manual removal.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks, the present invention is directed to an automatic evading structure and method for gold foil joints, so as to solve the problems that when the existing thermoprinting machine works, operators need to pay attention to the positions of gold foil joints at all times, omission is easy to occur, and when gold foil is about to be used at the joint positions, equipment is required to be stopped manually and the gold foil joints are manually cleaned, so that the production efficiency is affected.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
in one aspect, the present invention provides an automatic evasion structure for a gold foil joint, comprising:
the foil feeding unit is arranged at the feeding end of the gold stamping plate and is used for conveying gold foil, and the conveying speed is controlled by the control unit;
-a detection unit arranged on the foil transport path between the gold plate and the foil feeding unit for detecting the foil joints;
the control unit is used for receiving the detection signal of the detection unit and controlling the foil feeding unit and the foil pulling unit to rapidly operate when the gold foil connector is detected to be close to the gold stamping plate, so that the gold foil connector jumps to the gold stamping plate discharge end before the gold stamping plate works next time;
the foil pulling unit is arranged at the discharge end of the gold stamping plate and is used for collecting the gold foil after hot stamping, and the collecting speed is controlled by the control unit.
Further, the detection unit is matched with a foil supporting plate, and the foil supporting plate is arranged on one side of the gold foil far away from the detection unit, so that the gold foil at the position is flat and tight.
Furthermore, the detection unit is correspondingly provided with a measurement unit for measuring the distance between the gold stamping plate and the gold stamping plate.
Further, the foil feeding unit includes:
the foil feeding rubber roller is arranged on one side of the gold foil and is adhered to the gold foil;
the foil feeding roller is arranged on the other side of the gold foil, and is matched with the foil feeding rubber roller to generate friction force when in operation, the gold foil is rubbed and conveyed forwards, and the operation speed of the foil feeding roller is controlled by the control unit.
Further, the foil feeding unit further comprises a foil passing roller, and the foil passing roller is arranged at the discharging end of the foil feeding roller.
The invention further provides an automatic hiding method for the gold foil connector, which comprises the steps of acquiring position information of the gold foil connector by using a detection unit;
the real-time distance between the gold foil connector and the gold stamping plate is calculated by combining the distance between the detection unit and the gold foil connector information, the number of times of foil feeding and the length of single foil feeding after the gold foil connector information is detected;
when the real-time distance cannot meet the foil feeding distance;
and controlling the foil feeding unit and the foil pulling unit of the gold foil to run fast, and executing the step-jump operation to enable the gold foil connector to move to the discharge end of the gold stamping plate before the next work of the gold stamping plate.
Further, the detection unit adopts a color sensor and/or a visual probe.
Further, the distance between the detection unit and the gold stamping plate is calculated by using the measurement unit.
Further, the step-jump operation includes calculation of the foil pulling length and speed;
the calculation of the foil pulling length comprises manual calculation of the foil pulling length, wherein the specific formula is as follows:
foil pulling length=maximum thermoprinting length in paper feeding direction of gilding press+default gold foil joint length;
average speed of foil stretching = foil stretching length/gilding duty cycle.
Further, the calculation of the foil pulling length further comprises automatic calculation of the foil pulling length, and the specific formula is as follows:
foil length = plate length of all gold stamping plates + all gold stamping plate spacing + default gold foil joint length
Average speed of foil stretching = foil stretching length/gilding duty cycle.
Compared with the prior art, the automatic avoidance structure and method for the gold foil connector have the following beneficial effects:
(1) The original manual shutdown and manual removal of the electrochemical aluminum are changed into a mode of detecting the gold foil joint and automatically skipping over the joint position without shutdown, so that the time waste is reduced, the production efficiency is improved, and the generation of waste products is avoided.
(2) Because tension changes in the gold foil conveying process, the fact that the position of a joint is accurately and effectively detected becomes a difficulty, and the gold foil at the color sensor is in a tight state by using the gold foil supporting plate, so that the sensor can detect better.
(3) After the joint position is detected, the corresponding foil pulling distance is automatically deducted after foil pulling every time, and when the joint position is insufficient to meet the foil pulling distance, the gold foil automatically jumps by one step, the joint position is moved to the outside of the host platform, and the joint position is ensured not to be thermoprinted.
Drawings
The accompanying drawings, which 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. In the drawings:
fig. 1 is a schematic diagram of an automatic evading structure of a gold foil connector according to the present invention.
1. A foil feeding rubber roller; 2. foil feeding rollers; 3. foil passing rollers; 4. a color sensor; 5. gold foil; 6. a gold foil joint; 7. and a foil supporting plate.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
In one aspect, the present embodiment provides an automatic avoidance structure of a gold foil connector, including:
the foil feeding unit is arranged at the feeding end of the gold stamping plate and is used for conveying gold foil 5, and the conveying speed is controlled by the control unit;
the detection unit is arranged on a gold foil 5 conveying path between the gold stamping plate and the foil feeding unit and is used for detecting gold foil joints, when the gold foil joints are detected, the control unit enters a gold foil joint avoidance mode, and when the distance between the gold foil joints and the gold stamping plate is smaller than the foil pulling distance of Yu Shanci, the control unit controls the execution of jumping;
and the control unit is used for receiving the detection signal of the detection unit, and controlling the foil feeding unit and the foil pulling unit to rapidly operate when detecting that the gold foil connector is close to the gold stamping plate, so that the gold foil connector jumps to the gold stamping plate discharge end before the gold stamping plate works next time.
The detection unit is matched with the foil supporting plate 7, the foil supporting plate 7 is arranged on one side, far away from the detection unit, of the gold foil 5 and is used for supporting the gold foil, the foil supporting plate 7 can be fixedly arranged on a gold stamping machine main body, the foil supporting plate can be a single plate or a combined plate, the purpose of the foil supporting plate is to ensure that the gold foil 5 at the detection position is smooth and tight, the accuracy of a detection result is improved, the detection unit is not limited by the existing color sensor 4, a camera and the like, and other detection devices capable of realizing gold foil connectors are also in the protection scope of the invention, and the purpose of detecting the gold foil connectors by utilizing optical or visual technology is achieved.
The foil pulling unit is arranged at the discharge end of the gold stamping plate and used for collecting the gold foil 5 which is hot stamped, the collecting speed is controlled by the control unit, and the foil pulling unit adopts but is not limited to the existing roller way.
The detection unit is also correspondingly provided with a measurement unit for measuring the distance between the gold stamping plate and the gold stamping plate. When the jump is completed, the distance between the detection unit and the gold stamping plate needs to be considered, and the measurement unit adopts but is not limited to the existing steel rule, tape measure and electronic distance measuring device.
The foil feeding unit includes:
the foil feeding rubber roller 1 is arranged on one side of the gold foil 5 and is adhered to the gold foil 5;
the foil feeding roller 2 is arranged on the other side of the gold foil 5, and generates friction force when in operation by cooperating with the foil feeding rubber roller 1, so that the gold foil 5 is rubbed and conveyed forwards, and the operation speed of the foil feeding roller 2 is controlled by the control unit.
The control unit can adopt a separate controller, such as a PLC, a PC or other control hosts, and can also utilize the controller of the thermoprinting machine, and the main purpose is to realize intelligent detection of the gold foil joint and complete non-stop jumping.
The foil feeding unit further comprises a foil passing roller 3, and the foil passing roller 3 is arranged at the discharging end of the foil feeding roller 2. The foil passing roller 3 plays a role in supporting and guiding the gold foil 5.
Taking the color sensor 4 as an example, the detection and avoidance technique of the present invention will be further described.
Detecting a gold foil joint principle:
first, the color sensor 4 needs to be set, so that the color sensor 4 can normally distinguish the gold foil 5 from the joints on the gold foil 5 (when the gold foil 5 passes the color sensor 4, the color sensor 4 does not perform any processing; when the gold foil joints pass the color sensor 4, the color sensor 4 sends a signal to the controller).
When the foil feeding shaft rotates anticlockwise as shown in fig. 1, the gold foil 5 moves forwards due to the friction force of the foil feeding rubber roller 1, and the gold foil 5 passes through the foil feeding roller 3 and the foil supporting plate 7 in the moving process. The gold foil joint is detected by the color detection sensor as it passes through the foil roller 3 and the foil support 7.
Principle of automatic avoidance of gold foil joints:
first, the distance of the color sensor 4 from the first plate needs to be set. The color sensor 4 is then adjusted so that the color sensor 4 can distinguish between normal gold foil 5 and a joint on gold foil 5.
In the normal thermoprinting process of the product, the color sensor 4 detects the signal of the gold foil connector at a certain moment, the signal of the sensor is transmitted to the gold stamping PC, and the PC opens the gold foil connector to avoid the state. Because the position of the color sensor 4 from the first gold stamping plate is set, the corresponding foil pulling distance is deducted from the distance after foil pulling each time until the joint position is insufficient to meet the foil pulling distance, the gold foil 5 jumps a large step at high speed, the joint position is moved to the outside of the host platform, and the joint position is ensured not to be subjected to hot stamping.
Another aspect of the present embodiment provides a method for automatically hiding a gold foil connector, including:
acquiring position information of the gold foil connector by using a detection unit;
the real-time distance between the gold foil connector and the gold stamping plate is calculated by combining the distance between the detection unit and the gold foil connector information, the number of times of foil feeding and the length of single foil feeding after the gold foil connector information is detected;
when the real-time distance cannot meet the foil feeding distance;
and controlling the foil feeding unit and the foil pulling unit of the gold foil 5 to run fast, and executing the step-jump operation to enable the gold foil connector to move to the discharge end of the gold stamping plate before the next work of the gold stamping plate.
The position signal of the gold foil joint is detected by a detection unit, which uses but is not limited to an existing color sensor 4, a visual probe, etc., in order to detect the gold foil joint by optical or visual technology.
The step jump operation comprises the calculation of the foil pulling length and the speed;
the calculation of the foil pulling length comprises manual calculation of the foil pulling length, wherein the specific formula is as follows:
foil pulling length=maximum thermoprinting length in paper feeding direction of gilding press+default gold foil joint length;
average speed of foil stretching = foil stretching length/gilding duty cycle.
The calculation of the foil pulling length further comprises automatic calculation of the foil pulling length, wherein the specific formula is as follows:
foil length = plate length of all gold stamping plates + all gold stamping plate spacing + default gold foil joint length
Average speed of foil stretching = foil stretching length/gilding duty cycle.
The method is further described in connection with the examples:
first, the distance of the color sensor 4 from the first plate needs to be set. The color sensor 4 is then adjusted so that the color sensor 4 can distinguish between normal gold foil 5 and a joint on gold foil 5.
In the normal thermoprinting process of the product, the color sensor 4 detects the signal of the gold foil connector at a certain moment, the signal of the sensor is transmitted to the gold stamping PC, and the PC opens the gold foil connector to avoid the state. Because the position of the color sensor 4 from the first gold stamping plate is set, the corresponding foil pulling distance is deducted from the distance after foil pulling each time until the joint position is insufficient to meet the foil pulling distance, the gold foil 5 jumps a large step at high speed, the joint position is moved to the outside of the host platform, and the joint position is ensured not to be subjected to hot stamping.
When the jump operation is executed, the foil pulling length is calculated:
(1) Manually calculating a foil pulling mode:
big step length l=maximum hot stamping length in paper feeding direction of gilding press+default gold foil joint length
(2) Automatically calculating a foil drawing mode:
when the foil drawing is automatically calculated, the large step length required by calculation is performed according to the data on the parameters of the foil drawing which are automatically calculated.
Large step length l= Σ (plate length of all gold plates + all gold plate spacing) +default gold foil joint length
Calculating the average speed of foil pulling:
since the foil-pulling length suddenly becomes much larger, the corresponding average foil-pulling speed is also increased to a level that satisfies the large step-length L, and the gold foil 5 can be completely fed out and pulled away in one cycle. For example: at present, the machine speed is 7200 sheets/hour, the time for one turn is 3600/7200=0.5 s, the foil feeding time is 0.5/2=0.25 s, and the foil feeding and foil pulling actions need to be completed in 0.25s, namely, the foil 5 conveying action with the large step length L is completed in 0.25s, which is the foil feeding speed corresponding to the large step length.
Those of ordinary skill in the art will appreciate that the elements and method steps of each example described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the elements and steps of each example have been described generally in terms of functionality in the foregoing description to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the several embodiments provided in this application, it should be understood that the disclosed methods and systems may be implemented in other ways. For example, the above-described division of units is merely a logical function division, and there may be another division manner when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted or not performed. The units may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiment of the present invention.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. An automatic evasion structure of a gold foil joint, comprising:
the foil feeding unit is arranged at the feeding end of the gold stamping plate and is used for conveying gold foil, and the conveying speed is controlled by the control unit;
-a detection unit arranged on the foil transport path between the gold plate and the foil feeding unit for detecting the foil joints;
the control unit is used for receiving the detection signal of the detection unit and controlling the foil feeding unit and the foil pulling unit to rapidly operate when the gold foil connector is detected to be close to the gold stamping plate, so that the gold foil connector jumps to the gold stamping plate discharge end before the gold stamping plate works next time;
the foil pulling unit is arranged at the discharge end of the gold stamping plate and is used for collecting the gold foil after hot stamping, and the collection speed is controlled by the control unit;
the automatic evasion method of the gold foil connector with the structure comprises the steps of obtaining the position information of the gold foil connector by using a detection unit;
the real-time distance between the gold foil connector and the gold stamping plate is calculated by combining the distance between the detection unit and the gold foil connector information, the number of times of foil feeding and the length of single foil feeding after the gold foil connector information is detected;
when the real-time distance cannot meet the foil feeding distance;
the foil feeding unit and the foil pulling unit of the gold foil are controlled to run fast, and the jump operation is executed, so that the gold foil connector moves to the discharge end of the gold stamping plate before the gold stamping plate works next time;
the detection unit is matched with a foil supporting plate, and the foil supporting plate is arranged on one side of the gold foil far away from the detection unit;
the foil feeding unit includes:
the foil feeding rubber roller is arranged on one side of the gold foil and is adhered to the gold foil;
the foil feeding roller is arranged on the other side of the gold foil, and is matched with the foil feeding rubber roller to generate friction force when in operation, the gold foil is rubbed and conveyed forwards, and the operation speed of the foil feeding roller is controlled by the control unit.
2. The gold foil joint automatic evasion structure according to claim 1, characterized in that: the detection unit is also correspondingly provided with a measurement unit for measuring the distance between the gold stamping plate and the gold stamping plate.
3. The gold foil joint automatic evasion structure according to claim 1, characterized in that: the foil feeding unit further comprises a foil passing roller, and the foil passing roller is arranged at the discharging end of the foil feeding roller.
4. The gold foil joint automatic evasion structure according to claim 1, characterized in that: the detection unit adopts a color sensor and/or a visual probe.
5. The gold foil joint automatic evasion structure according to claim 2, characterized in that: and calculating the distance between the detection unit and the gold stamping plate by using the measurement unit.
6. The gold foil joint automatic evasion structure of claim 5, wherein: the step jump operation comprises the calculation of the foil pulling length and the speed;
the calculation of the foil pulling length comprises manual calculation of the foil pulling length, wherein the specific formula is as follows:
foil pulling length=maximum thermoprinting length in paper feeding direction of gilding press+default gold foil joint length;
average speed of foil stretching = foil stretching length/gilding duty cycle.
7. The gold foil joint automatic evasion structure of claim 5, wherein:
the calculation of the foil pulling length further comprises automatic calculation of the foil pulling length, wherein the specific formula is as follows:
foil length = plate length of all gold plates + all gold plate spacing + default gold foil joint length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110688743.2A CN113478959B (en) | 2021-06-21 | 2021-06-21 | Automatic avoidance structure and method for gold foil connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110688743.2A CN113478959B (en) | 2021-06-21 | 2021-06-21 | Automatic avoidance structure and method for gold foil connector |
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| Publication Number | Publication Date |
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| CN113478959A CN113478959A (en) | 2021-10-08 |
| CN113478959B true CN113478959B (en) | 2024-04-12 |
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| CN202110688743.2A Active CN113478959B (en) | 2021-06-21 | 2021-06-21 | Automatic avoidance structure and method for gold foil connector |
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| CN206254633U (en) * | 2016-11-17 | 2017-06-16 | 上海耀科印刷机械有限公司 | Song La paper tinsels mechanism and its vertical Song Labo thermoprints mechanism of composition |
| CN107825839A (en) * | 2017-12-05 | 2018-03-23 | 天津长荣科技集团股份有限公司 | A kind of anodized aluminium conveyer and include its gilding press |
| CN209618450U (en) * | 2019-01-17 | 2019-11-12 | 天津长荣科技集团股份有限公司 | Foil guide transportation system for gilding press |
| CN110293748A (en) * | 2019-06-06 | 2019-10-01 | 湖南乐马自动化技术有限公司 | The printing of card bumps word and gold stamping combination unit |
| CN210680068U (en) * | 2019-07-12 | 2020-06-05 | 上海耀科印刷机械有限公司 | Precoated adhesive off-line positioning gilding press |
| CN112248639A (en) * | 2020-09-29 | 2021-01-22 | 深圳市冠为科技股份有限公司 | Jumper joint control device and method of cold ironing machine |
| CN215705015U (en) * | 2021-06-21 | 2022-02-01 | 天津长荣科技集团股份有限公司 | Automatic structure of dodging of goldleaf joint |
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