Printing stock tensioning device
By setting a cutting seam on the cutting roller and combining a tightening mechanism with a fixed press rod and an elastic press roller, the problem of cutting difficulties in the paper cutting device is solved, and high-quality paper cutting is achieved to ensure that the edges of the cut paper are flat and meet printing requirements.
Patent Information
- Application Number
- CN202422011797.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-19
AI Technical Summary
When cutting the existing paper cutting device, the paper on both sides of the cutting tool is easy to move, resulting in difficulty in cutting and poor cutting quality, which affects subsequent printing processing.
The cutting seam is set on the cutting roller, and the tightening mechanism of the fixed press rod and the elastic press roller is combined with the tightening mechanism of the fixed press rod to squeeze and fix the paper through the fixed press rod, and the elastic press roller is used to elastically tighten the paper between the cutting roller and the driving clamp rod to ensure that the paper is in a tightening state and improve the cutting quality.
Through the coordination of the cutting seam and tightening mechanism, the accuracy and quality of paper cutting are improved, ensuring that the edges of the cut paper are flat and meeting printing needs.
Smart Images
Figure CN223073628U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of printing, and particularly relates to a substrate tensioning device. Background Art
[0002] The rapid development of digital printing has gradually enhanced the importance of printing. The printing of products such as plastic films, packaging films, and advertising covering films is largely completed by digital printing. The substrate is commonly a packaging printing paper printed with patterns, trademarks, words, etc., and generally includes kraft paper, moisture-proof paper, sandwich paper, white paper, label paper, etc. When processing the substrate (printing paper), the paper on the printing paper roll needs to be cut to retain the printing paper of an appropriate size.
[0003] When the existing paper cutting device cuts paper, the paper on both sides of the cutting tool is prone to move towards the cutting tool, making it difficult for the cutting tool to cut the paper, and the edge quality of the cut paper is poor, affecting subsequent printing and processing. Content of the Utility Model
[0004] In view of the above deficiencies, the utility model provides a substrate tensioning device. The cutting tool moves towards the cutting slot of the cutting roller to cut the paper located on the surface of the cutting roller, and setting the cutting slot improves the cutting quality of the paper. The paper located on the cutting roller is squeezed and fixed by the fixed pressure rod, and the paper located between the cutting roller and the driving pinch roller is tightly pressed by the elastic pressure roller to tension the paper above the cutting slot, improving the cutting quality of the paper.
[0005] The utility model is realized through the following technical solutions:
[0006] A substrate tensioning device includes a support frame body, a driving pinch roller, a cutting mechanism, and a tensioning mechanism. The support frame body includes two support vertical plates and a bottom plate connecting the two support vertical plates, and a printing paper roll is installed between the two support vertical plates; the driving pinch roller is installed between the two support vertical plates, and the driving pinch roller can drag the paper on the printing paper roll to the printing equipment; the cutting mechanism includes a cutting roller and a cutting tool, a cutting slot is opened directly above the cutting roller, and the cutting tool cuts into the cutting slot to cut the paper located on the cutting roller; the tensioning mechanism includes a fixed pressure rod and an elastic pressure roller, the cutting roller is located between the fixed pressure rod and the elastic pressure roller, the fixed pressure rod moves towards the cutting roller to press the paper tightly against the cutting roller, and the elastic pressure roller elastically squeezes the paper to keep the paper between the cutting roller and the driving pinch roller in a tensioned state, so as to improve the cutting quality of the cutting tool on the paper.
[0007] Furthermore, an arc-shaped groove matching with the fixed pressure rod is opened on one side of the cutting roller close to the fixed pressure rod, increasing the contact area between the fixed pressure roller and the paper, and improving the pressing and fixing effect of the fixed pressure roller on the paper located between the fixed pressure roller and the cutting roller.
[0008] Further, a first strip-shaped groove is formed on the supporting vertical plate, the fixing pressure rod penetrates through the first strip-shaped groove, and the tensioning mechanism further includes a first electric telescopic rod. The first electric telescopic rod is fixed to the supporting vertical plate through a fixing plate, and the first electric telescopic rod is fixedly connected to the fixing pressure rod to drive the fixing pressure roller.
[0009] Further, a second strip-shaped groove is also formed on the supporting vertical plate, and the tensioning mechanism further includes an adjusting block, a bearing slider and a spring arranged in the second strip-shaped groove. The spring is located between the adjusting block and the bearing slider, and the spring connects the adjusting block and the bearing slider. The bearing slider can move vertically along the second strip-shaped groove, and both ends of the elastic pressure roller are installed on the bearing slider to elastically press the paper by the elastic pressure roller, so that the paper located between the cutting roller and the driving pinch roller is in a tightened state.
[0010] Further, a second electric telescopic rod is also installed on the supporting vertical plate. The second electric telescopic rod is fixedly connected to the adjusting block, and the second electric telescopic rod can drive the adjusting block to move vertically to adjust the tensioning force of the paper located between the cutting roller and the driving pinch roller.
[0011] Further, a distance sensor is installed on one side of the bearing slider close to the adjusting block. The distance sensor can detect the distance between the bearing slider and the adjusting block, and the distance sensor is data-connected to the controller of the second electric telescopic rod to monitor the elastic pressure of the elastic pressure roller on the paper.
[0012] Further, a support roller is also provided on the support frame body. The support roller is located between the two supporting vertical plates, and the horizontal height of the support roller is higher than that of the elastic pressure roller, so as to install the driving pinch roller at a position lower than the elastic pressure roller.
[0013] Further, the cutting mechanism further includes a third electric telescopic rod installed on the supporting vertical plate. The third electric telescopic rod is connected to the cutting tool, and the third electric telescopic rod can drive the cutting tool to move vertically to provide power for the cutting tool to cut the paper.
[0014] Further, the driving pinch roller includes a driving roller, a driven roller and a motor. There is a clamping gap for clamping the paper between the driving roller and the driven roller, and the motor can drive the driving roller to rotate to provide power support for the driving pinch roller to drag the paper.
[0015] The beneficial effects of the utility model are as follows:
[0016] 1. The cutting tool moves towards the cutting seam of the cutting roller to cut the paper on the surface of the cutting roller. The setting of the cutting seam improves the cutting quality of the paper;
[0017] 2. The paper on the cutting roller is fixed by pressing with a fixed pressure rod, and the paper between the cutting roller and the driving pinch roller is tightly pressed by an elastic pressure roller to tighten the paper above the cutting seam, thereby improving the cutting quality of the paper. Brief Description of the Drawings
[0018] Figure 1 A connection schematic diagram for illustrating a schematic embodiment of a substrate tensioning device in the present invention;
[0019] Figure 2 A structural schematic diagram for illustrating a schematic embodiment of a substrate tensioning device in the present invention;
[0020] Figure 3 A structural schematic diagram for illustrating another schematic embodiment of a substrate tensioning device in the present invention;
[0021] Figure 4 For illustration Figure 3 The partial enlarged schematic diagram at A in
[0022] Figure 5 A cross-sectional view for illustrating a schematic embodiment of a substrate tensioning device in the present invention.
[0023] List of Components and Reference Numerals:
[0024] 1. Support frame body; 11. Support vertical plate; 111. First strip-shaped groove; 112. Second strip-shaped groove; 12. Bottom plate; 13. Printing paper roller; 14. Support roller; 2. Driving pinch roller; 21. Driving roller; 22. Driven roller; 3. Cutting mechanism; 31. Cutting roller; 311. Cutting seam; 312. Arc-shaped groove; 32. Cutting tool; 33. Third electric telescopic rod; 4. Tensioning mechanism; 41. Fixed pressure rod; 42. Elastic pressure roller; 43. First electric telescopic rod; 44. Adjusting block; 45. Bearing slider; 46. Spring; 47. Second electric telescopic rod; 48. Distance sensor; 5. Paper. Detailed Embodiment
[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0026] It should be noted that the directional terms such as left, right, up, down, front, and back in the embodiments of the present utility model are only relative concepts to each other or are referenced based on the normal use state of the product, that is, the traveling direction of the product, and should not be considered as restrictive.
[0027] In addition, it should also be noted that the dynamic terms such as "relative movement" mentioned in the embodiments of the present utility model not only include changes in position, but also include movements such as rotation and rolling where there is no relative change in position but the state has changed.
[0028] Finally, it should be noted that when a component is referred to as "being located on" or "being provided on" another component, it can be on another component or there may be an intermediate component present at the same time. When a component is referred to as "being connected to" another component, it can be directly connected to another component or there may be an intermediate component present at the same time.
[0029] As Figures 1 to 5 shown, a substrate tensioning device includes a support frame body 1, a driving pinch roller 2, a cutting mechanism 3, and a tensioning mechanism 4. The support frame body 1 includes two support vertical plates 11 and a bottom plate 12 connecting the two support vertical plates 11. A printing paper roller 13 is installed between the two support vertical plates 11; the driving pinch roller 2 is installed between the two support vertical plates 11, and the driving pinch roller 2 can drag the paper 5 on the printing paper roller 13 to the printing device; the cutting mechanism 3 includes a cutting roller 31 and a cutting tool 32. A cutting slot 311 is provided directly above the cutting roller 31, and the cutting tool 32 cuts into the cutting slot 311 to cut the paper 5 located on the cutting roller 31; the tensioning mechanism 4 includes a fixed pressure bar 41 and an elastic pressure roller 42. The cutting roller 31 is located between the fixed pressure bar 41 and the elastic pressure roller 42. The fixed pressure bar 41 moves towards the cutting roller 31 to press the paper 5 tightly against the cutting roller 31, and the elastic pressure roller 42 elastically squeezes the paper 5 so that the paper 5 between the cutting roller 31 and the driving pinch roller 2 is in a tensioned state, so as to improve the cutting quality of the cutting tool 32 on the paper 5.
[0030] In one embodiment, first, the paper 5 on the printing paper roller 13 is pulled out, and the paper 5 is installed between the driving pinch rollers after passing around the cutting roller 31. The driving pinch rollers rotate to drive the paper 5 to move from the printing paper roller 13 to the corresponding printing equipment. When the required length of the paper 5 is reached, the first electric telescopic rod 43 contracts to drive the fixed pressure bar 41 to move towards the arc-shaped groove 312 of the cutting roller 31, so as to clamp and fix the paper 5 between the fixed pressure bar 41 and the cutting roller 31. Immediately afterwards, the second electric telescopic rod 47 extends, so that the adjusting block 44 moves vertically downward, and then drives the bearing slider 45 and the elastic pressure roller 42 to move vertically downward through the spring 46. After the elastic pressure roller 42 abuts against the paper 5, the adjusting block 44 still moves vertically downward by a certain distance, so that the spring 46 between the adjusting block 44 and the bearing slider 45 is compressed, that is, the spring 46 has a downward elastic extrusion force on the bearing slider 45, so that the elastic pressure roller 42 has a downward elastic extrusion force on the paper 5, and further makes the paper 5 between the cutting roller 31 and the driving pinch rollers in a tensioned state. In this way, the paper 5 on both sides of the cutting roller 31 is in a tensioned state. Subsequently, the third electric telescopic rod 33 contracts, so that the cutting tool 32 moves vertically downward until the cutting tool 32 is inserted into the cutting slot 311 of the cutting roller 31, realizing the cutting of the paper 5 and ensuring the cutting quality of the paper 5.
[0031] It should be noted that the driving pinch rollers themselves have the function of clamping and fixing the paper 5. When the elastic pressure roller 42 presses the paper 5, the paper 5 located between the driving pinch rollers and the cutting roller 31 will be in a tensioned state. Among them, the first electric telescopic rod 43, the second electric telescopic rod 47 and the third electric telescopic rod 33 are all existing structures, and their telescopic principles will not be elaborated here.
[0032] Preferably, an arc-shaped groove 312 matching the fixed pressure bar 41 is opened on one side of the cutting roller 31 close to the fixed pressure bar 41, increasing the contact area between the fixed pressure roller and the paper 5 and improving the pressing and fixing effect of the fixed pressure roller on the paper 5 located between the fixed pressure roller and the cutting roller 31.
[0033] Preferably, a first strip-shaped groove 111 is opened on the support vertical plate 11. The fixed pressure bar 41 penetrates through the first strip-shaped groove 111. The tensioning mechanism 4 further includes a first electric telescopic rod 43. The first electric telescopic rod 43 is fixed to the support vertical plate 11 through a fixing plate, and the first electric telescopic rod 43 is fixedly connected to the fixed pressure bar 41 to realize the driving of the fixed pressure roller.
[0034] Preferably, a second strip-shaped groove 112 is further formed in the supporting vertical plate 11. The tensioning mechanism 4 further includes an adjusting block 44, a bearing slider 45 and a spring 46 disposed in the second strip-shaped groove 112. The spring 46 is located between the adjusting block 44 and the bearing slider 45, and the spring 46 connects the adjusting block 44 and the bearing slider 45. The bearing slider 45 can move vertically along the second strip-shaped groove 112. Both ends of the elastic pressing roller 42 are mounted to the bearing slider 45, so as to elastically press the paper 5, so that the paper 5 located between the cutting roller 31 and the driving pinch roller 2 is in a tensioned state.
[0035] Preferably, a second electric telescopic rod 47 is further mounted on the supporting vertical plate 11. The second electric telescopic rod 47 is fixedly connected to the adjusting block 44, and the second electric telescopic rod 47 can drive the adjusting block 44 to move vertically, so as to adjust the tensioning force of the paper 5 located between the cutting roller 31 and the driving pinch roller 2.
[0036] Preferably, a distance sensor 48 is mounted on one side of the bearing slider 45 close to the adjusting block 44. The distance sensor 48 can detect the distance between the bearing slider 45 and the adjusting block 44, and the distance sensor 48 is data-connected to the controller of the second electric telescopic rod 47. Thus, the elastic pressure of the elastic pressing roller 42 on the paper 5 is monitored.
[0037] In an embodiment, when the second electric telescopic rod 47 drives the adjusting block 44 to move vertically downward, after the elastic pressing roller 42 abuts against the paper 5, the paper 5 reacts on the elastic pressing roller 42 and has a vertically upward supporting force on the elastic pressing roller 42. As the adjusting block 44 continues to move downward, the spring 46 located between the adjusting block 44 and the bearing slider 45 is compressed, and the distance between the adjusting block 44 and the bearing slider 45 decreases. When the distance sensor 48 detects that the distance between the adjusting block 44 and the bearing slider 45 reaches a set value, that is, when the spring 46 is compressed to a set degree, the distance sensor 48 sends a stop signal to the controller of the second electric telescopic rod 47, and the second electric telescopic rod 47 stops moving the adjusting block 44, thereby preventing the elastic pressing roller 42 from over-pressing the paper 5.
[0038] Preferably, a supporting roller 14 is further provided on the support frame 1. The supporting roller 14 is located between the two supporting vertical plates 11, and the horizontal height of the supporting roller 14 is higher than that of the elastic pressing roller 42, so as to mount the driving pinch roller 2 to a position lower than the elastic pressing roller 42.
[0039] In one embodiment, in order to make the driving pinch roller adapt to the height of the printing device, the height position of the driving pinch roller is often lower than that of the elastic pressure roller 42. In order to make the paper 5 on both sides of the elastic pressure roller 42 higher than the elastic pressure roller 42, a support roller 14 is added between the elastic pressure roller 42 and the driving pinch roller to increase the height of the paper 5, so that when the elastic pressure roller 42 squeezes the paper 5, the paper 5 can be squeezed into a tensioned state.
[0040] Preferably, the cutting mechanism 3 further includes a third electric telescopic rod 33 installed on the support vertical plate 11. The third electric telescopic rod 33 is connected to the cutting tool 32, and the third electric telescopic rod 33 can drive the cutting tool 32 to move in the vertical direction to provide power for the cutting tool 32 to cut the paper 5.
[0041] Preferably, the driving pinch roller 2 includes a driving roller 21, a driven roller 22 and a motor. There is a clamping gap for clamping the paper 5 between the driving roller 21 and the driven roller 22, and the motor can drive the driving roller 21 to rotate to provide power support for the driving pinch roller 2 to drag the paper 5.
[0042] When the above-mentioned printing material tensioning device is adopted, the cutting tool 32 moves towards the cutting slot 311 of the cutting roller 31 to cut the paper 5 located on the surface of the cutting roller 31. The setting of the cutting slot 311 improves the cutting quality of the paper 5. The paper 5 located on the cutting roller 31 is squeezed and fixed by the fixed pressure rod 41, and the paper 5 located between the cutting roller 31 and the driving pinch roller 2 is pressed tightly by the elastic pressure roller 42 to tension the paper 5 above the cutting slot 311 and improve the cutting quality of the paper 5.
[0043] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.
Claims
1. A substrate tensioning device, characterized in that, Comprising: A support frame body, the support frame body includes two support vertical plates and a bottom plate connecting the two support vertical plates, and a printing paper roll is installed between the two support vertical plates; A driving pinch roller, the driving pinch roller is installed between the two support vertical plates, and the driving pinch roller can drag the paper on the printing paper roll to the printing equipment; A cutting mechanism, the cutting mechanism includes a cutting roller and a cutting tool, a cutting slot is opened directly above the cutting roller, and the cutting tool cuts into the cutting slot to cut the paper located on the cutting roller; A tensioning mechanism, the tensioning mechanism includes a fixed pressure rod and an elastic pressure roller, the cutting roller is located between the fixed pressure rod and the elastic pressure roller, the fixed pressure rod moves towards the cutting roller to press the paper tightly against the cutting roller, and the elastic pressure roller elastically squeezes the paper so that the paper between the cutting roller and the driving pinch roller is in a tensioned state.
2. The tensioning device for a printing substrate according to claim 1, characterized in that, An arc-shaped groove cooperating with the fixed pressure rod is opened on one side of the cutting roller close to the fixed pressure rod.
3. The tensioning device for the printing substrate according to claim 1, characterized in that A first strip-shaped groove is opened on the support vertical plate, the fixed pressure rod penetrates through the first strip-shaped groove, the tensioning mechanism further includes a first electric telescopic rod, the first electric telescopic rod is fixed to the support vertical plate through a fixing plate, and the first electric telescopic rod is fixedly connected to the fixed pressure rod.
4. A substrate tensioning device according to claim 1, characterized in that, A second strip-shaped groove is further opened on the support vertical plate, the tensioning mechanism further includes an adjusting block, a bearing slider and a spring arranged in the second strip-shaped groove, the spring is located between the adjusting block and the bearing slider, and the spring connects the adjusting block and the bearing slider, the bearing slider can move vertically along the second strip-shaped groove, and both ends of the elastic pressure roller are installed on the bearing slider.
5. The tensioning device for the printing substrate according to claim 4, characterized in that, A second electric telescopic rod is further installed on the support vertical plate, the second electric telescopic rod is fixedly connected to the adjusting block, and the second electric telescopic rod can drive the adjusting block to move vertically.
6. The tensioning device for a printing substrate according to claim 5, characterized in that, A distance sensor is installed on one side of the bearing slider close to the adjusting block, the distance sensor can detect the distance between the bearing slider and the adjusting block, and the distance sensor is data-connected to the controller of the second electric telescopic rod.
7. The tensioning device for the printing substrate according to claim 1, characterized in that, A support roller is further provided on the support frame body, the support roller is located between the two support vertical plates, and the horizontal height of the support roller is higher than that of the elastic pressure roller.
8. The tensioning device for printing substrates according to claim 1, characterized in that, The cutting mechanism further includes a third electric telescopic rod installed on the support vertical plate, the third electric telescopic rod is connected to the cutting tool, and the third electric telescopic rod can drive the cutting tool to move vertically.
9. The tensioning device for a substrate according to claim 1, wherein The driving pinch roller includes a driving roller, a driven roller and a motor, a clamping gap for clamping the paper is provided between the driving roller and the driven roller, and the motor can drive the driving roller to rotate.