CN114906655A - Tension control device in paperboard transmission - Google Patents
Tension control device in paperboard transmission Download PDFInfo
- Publication number
- CN114906655A CN114906655A CN202210647940.4A CN202210647940A CN114906655A CN 114906655 A CN114906655 A CN 114906655A CN 202210647940 A CN202210647940 A CN 202210647940A CN 114906655 A CN114906655 A CN 114906655A
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- Prior art keywords
- adjusting
- tension
- roller
- rack
- control device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000011087 paperboard Substances 0.000 title claims abstract description 42
- 230000005540 biological transmission Effects 0.000 title claims abstract description 36
- 238000009434 installation Methods 0.000 claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 239000000123 paper Substances 0.000 claims description 18
- 230000001681 protective effect Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 239000011111 cardboard Substances 0.000 description 21
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000005381 potential energy Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
- B65H20/02—Advancing webs by friction roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
- B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
- B65H23/1888—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web and controlling web tension
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
- B65H26/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs
- B65H26/04—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs for variation in tension
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- Paper (AREA)
Abstract
The invention discloses a tension control device in paperboard transmission, which comprises a rack, wherein a transmission mechanism is arranged on the rack, the transmission mechanism comprises a plurality of transmission rollers, an adjusting mechanism is arranged between two adjacent transmission rollers, the adjusting mechanism comprises an adjusting roller, a main adjusting structure and an auxiliary adjusting structure, the main adjusting structure is in sliding connection with the rack, the auxiliary adjusting structure is positioned in an installation shell, the auxiliary adjusting structure comprises a plurality of sliding blocks and elastic pieces, a sliding rail is arranged on the inner wall of the installation shell, the sliding blocks are in sliding connection with the sliding rail, the elastic pieces are used for adjusting the positions of the sliding blocks, and two ends of the adjusting roller are respectively in rotating connection with the sliding blocks.
Description
Technical Field
The invention relates to the field of paperboard production, in particular to a tension control device in paperboard transmission.
Background
Corrugated cardboard is a commonly used material in the packaging industry for making packaging boxes for packaging articles. Corrugated board is typically manufactured using a corrugated board production line. The corrugated paper passes through the overbridge after being output from the corrugating machine, then passes through the hot cylinder perpendicular to the ground from the upper surface of the overbridge, and finally reaches the stacking, wherein the corrugated paper is conveyed, rectified, attached, cut and conveyed to the stacking in each stage.
In the existing process, the tension of the paperboard is extremely unstable during transmission, and if the tension of the paperboard is not adjusted during the transmission process, the paperboard can be seriously deformed, and even the paperboard can be broken. In view of the above problems, a solution is proposed as follows.
Disclosure of Invention
The invention aims to provide a tension control device in paperboard transmission, which has the advantages that the paperboard is automatically adjusted according to the tension requirement of the paperboard, the tension of the paperboard is adjusted within a certain interval, and the paperboard is prevented from being damaged.
The technical purpose of the invention is realized by the following technical scheme:
a tension control device in paperboard transmission comprises a rack, wherein a transmission mechanism is arranged on the rack, the transmission mechanism comprises a plurality of transmission rollers, the transmission rollers are rotatably connected with the rack, an adjusting mechanism is arranged between every two adjacent transmission rollers and used for adjusting paper tension between the two transmission rollers, the adjusting mechanism comprises an adjusting roller, a main adjusting structure and an auxiliary adjusting structure, the main adjusting structure is slidably connected with the rack and comprises an installation shell and a lead screw structure, the lead screw structure is in threaded connection with the rack, the lead screw structure is used for adjusting the distance between the installation shell and the rack, the auxiliary adjusting structure is located in the installation shell and comprises a plurality of sliding blocks and elastic pieces, sliding rails are arranged on the inner wall of the installation shell and are slidably connected with the sliding rails, and two ends of each elastic piece are respectively connected to the inner walls of the sliding blocks and the installation shell, the elastic part is used for adjusting the position of the sliding block, the adjusting roller is installed in the installation shell, the two ends of the adjusting roller are respectively connected with the sliding block in a rotating mode, and the auxiliary adjusting structure is used for changing the position of the adjusting roller in the installation shell so that the adjusting roller can adjust the tension of paper.
Preferably, the auxiliary adjusting structure further comprises a first power source, the first power source is fixed to one of the sliding blocks, an output shaft of the first power source is fixedly connected with one end of the adjusting roller, the first power source is used for providing rotating power to drive the adjusting roller to rotate, and the rotating speeds of the first power sources are independently adjusted to adjust the tension of the paper.
Preferably, the auxiliary adjusting structure further comprises a limiting mechanism, the limiting mechanism comprises two limiting blocks, the limiting blocks are located on the slide rail and connected with the slide rail in a sliding mode, the slide block is located between the two limiting blocks, the two limiting blocks are used for limiting the sliding range of the slide block, fastening bolts are arranged on the limiting blocks and connected with the limiting blocks in a threaded mode, and the fastening bolts are used for abutting against the limiting blocks so that the limiting blocks can not slide.
Preferably, the screw rod structure comprises a plurality of adjusting screw rods, the adjusting screw rods are distributed along the length direction of the mounting shell, a plurality of threaded holes are formed in the rack, the adjusting screw rods are respectively located in the threaded holes and are in threaded connection with the threaded holes, the end portions of the adjusting screw rods are rotatably connected with one side of the mounting shell, and the adjusting screw rods are used for adjusting the distance between the mounting shell and the rack.
Preferably, one end of the mounting shell is provided with a measuring rod, one end of the measuring rod penetrates through the rack and is in sliding connection with the rack, scales are arranged on the measuring rod, and the measuring rod is used for measuring the distance between the mounting shell and the rack.
Preferably, the adjusting roller is sleeved with a protective sleeve, the protective sleeve is elastic and used for relieving pressure generated by the adjusting roller on paper so as to protect the paper from being damaged.
Preferably, the adjusting roller is further provided with a tension detector, one end of the tension detector is fixedly connected with the side wall of the adjusting roller, the other end of the tension detector penetrates through the protective sleeve and is flush with the outer edge of the protective sleeve, and the tension detector is used for detecting the tension of the paper.
Preferably, a controller and a relay are arranged on the rack, the controller is electrically connected with the tension detectors, the controller is used for receiving signals generated by the tension detectors, the relay is electrically connected with the first power sources, and the relay is used for controlling the running states of the first power sources.
The invention has the beneficial effects that: the distance between the mounting shell and the rack can be adjusted by rotating the adjusting screw rod, and the farther the distance between the mounting shell and the rack is, the larger the pressure generated by the adjusting roller on the mounting shell to the paperboard is, so that the larger the tension of the paperboard is.
Through the position of adjustment installation shell, can tentatively confirm the pressure scope that the regulating roller produced to the cardboard, when the cardboard was transmitted by a plurality of transmission rollers, the cardboard was to the pressure of regulating roller, made the regulating roller compression elastic component, and the elastic component produces elastic potential energy, and the one side of propping at the cardboard that makes the regulating roller can be tight lasts to the cardboard and applys pressure.
After the position of the installation shell is determined, the range in which the sliding block can move on the sliding rail determines the range of the pressure value which can be generated by the adjusting roller on the paperboard, the minimum pressure value which can be generated by the adjusting roller on the paperboard is larger than the minimum tension which can be borne by the paperboard, and the maximum pressure value which can be generated by the adjusting roller on the paperboard is smaller than the maximum tension which can be borne by the paperboard, so that the paperboard can always keep a completely-stretched state in the transmission process.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is an enlarged view of area A of FIG. 2;
FIG. 3 is a schematic view showing the structure of a dancer roll and a main dancer structure of the embodiment.
Reference numerals: 1. a frame; 2. a transfer roller; 3. a regulating roller; 4. mounting a shell; 5. a slider; 6. an elastic member; 7. a first power source; 8. a limiting block; 9. fastening a bolt; 10. adjusting the screw rod; 11. a measuring rod; 12. a protective sleeve; 13. a tension detector; 14. a controller; 15. a relay.
Detailed Description
The following description is only a preferred embodiment of the present invention, and the protection scope is not limited to the embodiment, and any technical solution that falls under the idea of the present invention should fall within the protection scope of the present invention. In which like parts are designated by like reference numerals. It should be noted that as used in the following description, the terms "front," "back," "left," "right," "upper," and "lower" refer to directions in the drawings, and the terms "bottom" and "top," "inner," and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1 to 3, a tension control device in a paper board conveying process includes a frame 1, and a conveying mechanism is disposed on the frame 1. The transmission mechanism comprises a plurality of transmission rollers 2, and the transmission rollers 2 are rotatably connected with the frame 1. The cardboard passes through from the up end of a plurality of transmission rollers 2, and when a plurality of driving rollers began to rotate, can drive the cardboard and remove to one side, realizes the transmission to the cardboard.
An adjusting mechanism is arranged between two adjacent conveying rollers 2, the paper boards pass through the lower end of the adjusting mechanism, and the adjusting mechanism generates pressure on the paper boards to enable the paper boards to be fully stretched.
The adjusting mechanism comprises an adjusting roller 3, a main adjusting structure and an auxiliary adjusting structure, wherein the adjusting roller 3 is directly contacted with the paperboard to generate pressure on the paperboard so as to stretch the paperboard. The main adjusting structure and the auxiliary adjusting structure can adjust the position of the adjusting roller 3, so that the pressure applied to the paperboard by the adjusting roller 3 is changed, and the tension of the paperboard is adjusted.
The adjusting roller 3 is sleeved with a protective sleeve 12, and the protective sleeve 12 has elasticity. The paper contacts with protective sheath 12, can extrude protective sheath 12 to alleviate the pressure that adjusting roller 3 produced the cardboard, prevent that the cardboard from damaging.
The adjusting roller 3 is also provided with a tension detector 13, and one end of the tension detector 13 is fixedly connected with the side wall of the adjusting roller 3. The other end of the tension detector 13 extends through the protective sheath 12 and is flush with the outer edge of the protective sheath 12. The tension detector 13 rotates synchronously with the dancer roller 3, and detects the pressure of the sheet against the dancer roller 3, thereby calculating the tension of the sheet.
The main adjusting structure comprises an installation shell 4 and a screw rod structure, the installation shell 4 is connected with the rack 1 in a sliding mode, and the screw rod structure is connected with the rack 1 in a threaded mode. The screw rod structure is used for adjusting the distance between the mounting shell 4 and the rack 1. The screw rod structure comprises a plurality of adjusting screw rods 10, and the adjusting screw rods 10 are distributed along the length direction of the mounting shell 4. A plurality of threaded holes are formed in the rack 1, and a plurality of adjusting screw rods 10 are respectively located in the threaded holes and are in threaded connection with the threaded holes. The ends of a plurality of adjusting screw rods 10 are rotatably connected with one side of the mounting shell 4. The adjusting screw rod is rotated to drive the installation shell 4 to move, so that the installation shell 4 is close to or far away from the rack 1.
One end of the mounting shell 4 is provided with a measuring rod 11, and one end of the measuring rod 11 penetrates through the rack 1 and is connected with the rack 1 in a sliding manner. Be equipped with the scale on the measuring staff 11, when the interval between installation shell 4 and the frame 1 changes, installation shell 4 can drive measuring staff 11 and remove, and the scale on the measuring staff 11 can be used for measuring the interval between installation shell 4 and the frame 1 to the realization that can be more accurate is to the adjustment of installation shell 4 positions.
The auxiliary adjusting structure is located in the installation shell 4 and comprises a plurality of sliding blocks 5 and elastic pieces 6, sliding rails are arranged on the inner wall of the installation shell 4, and the sliding blocks 5 are connected with the sliding rails in a sliding mode. Both ends of the elastic member 6 are connected to the inner walls of the slider 5 and the mounting case 4, respectively, and the elastic member 6 is used to adjust the position of the slider 5. Two ends of the adjusting roller 3 are respectively connected with the sliding block 5 in a rotating way. The cardboard can compress elastic component 6 to the pressure that adjusting roller 3 produced, and the elastic potential energy that produces after the compression of elastic component 6 can be used on slider 5, makes slider 5 drive adjusting roller 3 support tight cardboard to make the cardboard extend completely.
Vice regulation structure still includes stop gear, and stop gear includes two stopper 8, and stopper 8 is located the slide rail, and with slide rail sliding connection. The slider 5 is located between two stopper 8, and two stopper 8 are used for restricting the sliding range of slider 5. Be equipped with fastening bolt 9 on the stopper 8, fastening bolt 9 and stopper 8 threaded connection, fastening bolt 9 is used for supporting tight stopper 8 to make stopper 8 unable slip. The moving range of the sliding block 5 can be limited by adjusting the positions of the two limit blocks 8, so that the pressure of the adjusting roller 3 on the paperboard is limited.
The auxiliary adjusting structure further comprises a first power source 7, the first power source 7 is fixed on one of the sliding blocks 5, and an output shaft of the first power source 7 is fixedly connected with one end of the adjusting roller 3. The first power source 7 is a member capable of providing a rotational power, such as a motor, to rotate the adjustment roller 3. The rotating speeds of the first power sources 7 are independently adjusted to realize the adjustment of the paper tension.
The frame 1 is provided with a controller 14 and a relay 15, the controller 14 is electrically connected with the tension detectors 13, and the controller 14 is used for receiving signals generated by the tension detectors 13. The relay 15 is electrically connected with the first power sources 7, and the relay 15 is used for controlling the operation states of the first power sources 7.
The controller 14 can receive the tension from the tension sensors on the adjusting rollers 3, and when the tension at one adjusting roller 3 is small, the controller 14 can adjust the rotation speed of the first power source 7 at the end parts of the adjusting roller 3 and other adjusting rollers 3 through the relay 15. By adjusting the rotation speed of the different adjusting rollers 3, the paper sheet passing through the adjusting rollers 3 is tensioned, so that the paper sheet is completely stretched.
The working principle is as follows: in use, the plurality of transport rollers 2 transport the paperboard. Firstly, the distance between the mounting shell 4 and the frame 1 is adjusted by rotating the adjusting screw rod 10. The spacing between the mounting shell 4 and the support preliminarily defines the range of pressure values that the dancer 3 can generate against the cardboard. Then, the limit block 8 is moved to adjust the range of the slider 5 capable of moving on the slide rail. Further defining the range of pressure values that the dancer 3 can generate against the board.
During the transport of the cardboard, the cardboard exerts a pressure on the dancer 3, causing the dancer 3 to compress the elastic element 6. Elastic potential energy that elastic component 6 produced after being compressed can promote slider 5 to the one side removal that is close to the cardboard to make slider 5 drive adjusting roller 3 can be tightly support in one side of cardboard, last exert pressure to the cardboard, realize the regulation to cardboard tension.
The above embodiments are described in further detail to solve the technical problems, technical solutions and advantages of the present invention, and it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A tension control device in paperboard transmission comprises a rack (1) and is characterized in that a transmission mechanism is arranged on the rack (1) and comprises a plurality of transmission rollers (2), the transmission rollers (2) are rotatably connected with the rack (1), an adjusting mechanism is arranged between every two adjacent transmission rollers (2) and used for adjusting the paper tension between the two transmission rollers (2), the adjusting mechanism comprises an adjusting roller (3), a main adjusting structure and an auxiliary adjusting structure, the main adjusting structure is slidably connected with the rack (1), the main adjusting structure comprises an installation shell (4) and a lead screw structure, the lead screw structure is in threaded connection with the rack (1), the lead screw structure is used for adjusting the distance between the installation shell (4) and the rack (1), the auxiliary adjusting structure is positioned in the installation shell (4), the auxiliary adjusting structure comprises a plurality of sliding blocks (5) and an elastic piece (6), be equipped with the slide rail on the inner wall of installation shell (4), slider (5) and slide rail sliding connection, the both ends of elastic component (6) are connected respectively in the inner wall of slider (5) and installation shell (4), elastic component (6) are used for adjusting the position of slider (5), adjust roller (3) are installed in installation shell (4), just the both ends of adjust roller (3) rotate with slider (5) respectively and are connected, vice regulation structure is used for changing the position of adjust roller (3) in installation shell (4) to make adjust roller (3) realize the regulation to paper tension.
2. The tension control device in the paper board conveying process according to claim 1, wherein the secondary adjusting structure further comprises a first power source (7), the first power source (7) is fixed on one of the sliding blocks (5), an output shaft of the first power source (7) is fixedly connected with one end of the adjusting roller (3), the first power source (7) is used for providing rotary power to drive the adjusting roller (3) to rotate, and the rotating speeds of the first power sources (7) are independently adjusted to achieve the adjustment of the paper tension.
3. The tension control device in paperboard transmission according to claim 2, wherein the auxiliary adjusting structure further comprises a limiting mechanism, the limiting mechanism comprises two limiting blocks (8), the limiting blocks (8) are located on the slide rail and are slidably connected with the slide rail, the slide block (5) is located between the two limiting blocks (8), the two limiting blocks (8) are used for limiting the sliding range of the slide block (5), fastening bolts (9) are arranged on the limiting blocks (8), the fastening bolts (9) are in threaded connection with the limiting blocks (8), and the fastening bolts (9) are used for abutting against the limiting blocks (8) so that the limiting blocks (8) cannot slide.
4. The tension control device in paperboard transmission according to claim 1, wherein the lead screw structure comprises a plurality of adjusting lead screws (10), the adjusting lead screws (10) are distributed along the length direction of the mounting shell (4), a plurality of threaded holes are formed in the frame (1), the adjusting lead screws (10) are respectively located in the threaded holes and are in threaded connection with the threaded holes, the end portions of the adjusting lead screws (10) are rotatably connected with one side of the mounting shell (4), and the adjusting lead screws (10) are used for adjusting the distance between the mounting shell (4) and the frame (1).
5. A tension control device in a paper board conveying process according to claim 4, wherein one end of the mounting shell (4) is provided with a measuring rod (11), one end of the measuring rod (11) penetrates through the machine frame (1) and is connected with the machine frame (1) in a sliding mode, scales are arranged on the measuring rod (11), and the measuring rod (11) is used for measuring the distance between the mounting shell (4) and the machine frame (1).
6. A tension control device in a paper board transmission as claimed in claim 2, wherein the adjusting roller (3) is sleeved with a protective sleeve (12), the protective sleeve (12) has elasticity, and the protective sleeve (12) is used for relieving the pressure of the adjusting roller (3) on the paper to protect the paper from being damaged.
7. The tension control device in the paper board transmission process according to claim 6, wherein a tension detector (13) is further arranged on the adjusting roller (3), one end of the tension detector (13) is fixedly connected with the side wall of the adjusting roller (3), the other end of the tension detector (13) penetrates through the protective sleeve (12) and is flush with the outer edge of the protective sleeve (12), and the tension detector (13) is used for detecting the tension of the paper.
8. The tension control device in the paper board transmission according to claim 7, wherein the frame (1) is provided with a controller (14) and a relay (15), the controller (14) is electrically connected with the tension detectors (13), the controller (14) is used for receiving signals generated by the tension detectors (13), the relay (15) is electrically connected with the first power sources (7), and the relay (15) is used for controlling the operation states of the first power sources (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210647940.4A CN114906655A (en) | 2022-06-09 | 2022-06-09 | Tension control device in paperboard transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210647940.4A CN114906655A (en) | 2022-06-09 | 2022-06-09 | Tension control device in paperboard transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114906655A true CN114906655A (en) | 2022-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210647940.4A Pending CN114906655A (en) | 2022-06-09 | 2022-06-09 | Tension control device in paperboard transmission |
Country Status (1)
| Country | Link |
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| CN (1) | CN114906655A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206088529U (en) * | 2016-09-28 | 2017-04-12 | 鞍山文雷科技有限公司 | Printing machine automatic tension adjustment ware |
| CN208585859U (en) * | 2018-07-27 | 2019-03-08 | 贵州利富德印务有限公司 | A kind of label printing tension adjustment structure |
| CN208648322U (en) * | 2018-07-19 | 2019-03-26 | 合肥国轩高科动力能源有限公司 | A kind of tension floating roller regulating mechanism |
| CN210484530U (en) * | 2019-06-18 | 2020-05-08 | 安徽猛牛彩印包装有限公司 | Bag machine's of elasticity convenient to adjust transmission device |
| CN211110389U (en) * | 2019-11-11 | 2020-07-28 | 佛山市华裕泰织染有限公司 | Yarn tension adjusting assembly |
| CN211733327U (en) * | 2020-01-07 | 2020-10-23 | 苏州冠威热敏纸有限公司 | Paper unwinding part with tension adjusting function |
| CN212668733U (en) * | 2020-08-04 | 2021-03-09 | 河北玉鑫工贸有限公司 | Adjustable tension device |
| CN214569531U (en) * | 2020-12-24 | 2021-11-02 | 河南省斯科赛斯科技发展有限公司 | Tension adjusting device for conveying gauze roll |
-
2022
- 2022-06-09 CN CN202210647940.4A patent/CN114906655A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206088529U (en) * | 2016-09-28 | 2017-04-12 | 鞍山文雷科技有限公司 | Printing machine automatic tension adjustment ware |
| CN208648322U (en) * | 2018-07-19 | 2019-03-26 | 合肥国轩高科动力能源有限公司 | A kind of tension floating roller regulating mechanism |
| CN208585859U (en) * | 2018-07-27 | 2019-03-08 | 贵州利富德印务有限公司 | A kind of label printing tension adjustment structure |
| CN210484530U (en) * | 2019-06-18 | 2020-05-08 | 安徽猛牛彩印包装有限公司 | Bag machine's of elasticity convenient to adjust transmission device |
| CN211110389U (en) * | 2019-11-11 | 2020-07-28 | 佛山市华裕泰织染有限公司 | Yarn tension adjusting assembly |
| CN211733327U (en) * | 2020-01-07 | 2020-10-23 | 苏州冠威热敏纸有限公司 | Paper unwinding part with tension adjusting function |
| CN212668733U (en) * | 2020-08-04 | 2021-03-09 | 河北玉鑫工贸有限公司 | Adjustable tension device |
| CN214569531U (en) * | 2020-12-24 | 2021-11-02 | 河南省斯科赛斯科技发展有限公司 | Tension adjusting device for conveying gauze roll |
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Application publication date: 20220816 |
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| RJ01 | Rejection of invention patent application after publication |