Wide-breadth digital inkjet printer with auxiliary cloth placing device

Abstract

The utility model relates to the technical field of inkjet printers, in particular to a wide-breadth digital inkjet printer with an auxiliary cloth releasing device, which comprises an inkjet unit, a cloth releasing roller and an auxiliary cloth releasing assembly, the cloth releasing roller is arranged at the input end of the inkjet unit, and the auxiliary cloth releasing assembly is arranged at the lower end of the cloth releasing roller. The auxiliary cloth placing assembly comprises a supporting beam, rolling frames, carrier roller lifting plates and carrier roller bodies, each rolling frame is fixedly connected with the supporting beam, the two carrier roller bodies are arranged at the upper ends of the rolling frames respectively, and the two carrier roller lifting plates are arranged at the two ends of the corresponding carrier roller bodies respectively. The auxiliary cloth releasing assembly drags the air expansion roller with the printing medium, so that the air expansion roller keeps horizontal and does not deform, the auxiliary cloth releasing assembly can automatically ascend along with reduction of the diameter of a material, the printing medium is always supported, the air expansion roller keeps horizontal and does not deform, two carrier roller bodies can rotate, and it is guaranteed that no resistance is generated in the printing cloth preventing process, and the cloth releasing tension is not affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to spray plotter technical field especially with the auxiliary cloth device's wide width surface digital spray plotter. BACKGROUND

[0002] At present, in order to realize stable double-side alignment precision, the constant tension structure is used to ensure the accuracy and stability of medium transmission in the synchronous double-side digital spray plotter on the market, and the tension control structure is used at the two ends of cloth receiving and releasing of the spray plotter, the cloth receiving and releasing of this structure generally uses the air inflation roller to install printing material, and the maximum printing width of the spray plotter is 6.6 meters, with the increase of the printing material width, the deformation of the air inflation roller with long and narrow shape is more serious when printing material is installed, and with the continuous reduction of the cloth roll diameter in the printing process, the degree of deformation is gradually reduced, which causes unstable cloth running, poor printing precision and double-side alignment change.

[0003] In the prior art, the single-side wide width surface digital spray plotter generally uses the double-roller cloth releasing scheme to solve the problem of printing material deformation.

[0004] However, the prior art cannot provide stable constant cloth releasing tension, and the double-side alignment precision stability cannot be realized in the double-side digital spray plotter. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a wide width surface digital spray plotter with an auxiliary cloth releasing device, which aims to solve the technical problem that the prior art cannot provide stable constant cloth releasing tension and the double-side alignment precision stability cannot be realized in the double-side digital spray plotter.

[0006] To achieve the above-mentioned purpose, the utility model adopts a wide width surface digital spray plotter with an auxiliary cloth releasing device, which comprises a spray plotter unit, a cloth releasing roller and an auxiliary cloth releasing assembly, the cloth releasing roller is arranged at the input end of the spray plotter unit, the auxiliary cloth releasing assembly is arranged at the lower end of the cloth releasing roller, and the auxiliary cloth releasing assembly and the cloth releasing roller are mutually adapted, the auxiliary cloth releasing assembly comprises a supporting beam, a rolling frame, a carrier roller lifting plate and a carrier roller body, the number of the rolling frames is multiple groups, each group of the rolling frames is fixedly connected with the supporting beam and located at the upper end of the supporting beam, the number of the carrier roller bodies is two groups, two groups of the carrier roller bodies are arranged at the upper ends of the multiple groups of the rolling frames, the number of the carrier roller lifting plates is two groups, two groups of the carrier roller lifting plates are arranged at the two ends of the corresponding carrier roller bodies, and the carrier roller body is rotationally connected with the carrier roller lifting plate.

[0007] The support beam comprises a cross beam, end plates and fixing supports, the number of the end plates is two groups, the two groups of end plates are fixedly connected with the cross beam respectively and are located at two ends of the cross beam respectively, and the number of the fixing supports is multiple groups, each group of fixing supports is fixedly connected with the cross beam respectively and is located at two sides of the cross beam respectively.

[0008] The number of the spring shafts is two groups, the two groups of spring shafts are fixedly connected with the support seat respectively and are located at one side of the support seat respectively, the number of the telescopic springs is two groups, each group of telescopic springs is sleeved on the outer wall of the corresponding spring shaft, and the number of the support rubber rollers is multiple groups.

[0009] The spraying unit comprises a first adsorption platform, a first printing trolley, a first driving roller, a second adsorption platform, a second printing trolley, a second driving roller and a cloth collecting roller, the first adsorption platform is arranged at one side of the cloth releasing roller, the first printing trolley is arranged at the upper end of the first adsorption platform and is matched with the first adsorption platform, the first driving roller is arranged at the circumferential side of the first adsorption platform, the second adsorption platform is arranged at the output end of the first driving roller, the first printing trolley is arranged at the upper end of the first adsorption platform and is matched with the first adsorption platform, the second driving roller is arranged at the circumferential side of the second adsorption platform, and the cloth collecting roller is arranged at the output end of the second driving roller.

[0010] The spraying unit further comprises a first cloth guide roller, a second cloth guide roller, a third cloth guide roller and a wrapping angle roller, the first cloth guide roller and the second cloth guide roller are arranged between the printing paths of the cloth releasing roller and the first adsorption platform respectively, the third cloth guide roller is arranged between the printing paths of the first driving roller and the second adsorption platform, and the wrapping angle roller is arranged between the printing paths of the second driving roller and the cloth collecting roller.

[0011] The auxiliary cloth releasing assembly drags the air expansion roller with the printing medium, so that the air expansion roller remains horizontal and invariable in shape, can automatically rise with the reduction of the material diameter, supports and keeps the printing medium horizontal and invariable in shape at all times, and the two supporting roller bodies can rotate, so that the printing process is not affected by resistance and the cloth releasing tension is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0013] Figure 1 It is a structure schematic diagram of a wide-width digital inkjet plotter with auxiliary cloth unwinding device.

[0014] Figure 2 It is a structure schematic diagram of an auxiliary cloth unwinding assembly of the present application.

[0015] Figure 3 It is a side view of the auxiliary cloth unwinding assembly of the present application.

[0016] Figure 4 It is a structure schematic diagram of the present application Figure 2 A partial structure enlarged view of the place A.

[0017] 1-cloth unwinding roller, 2-auxiliary cloth unwinding assembly, 3-roller lifting plate, 4-roller body, 5-cross beam, 6-end plate, 7-fixed support, 8-spring shaft, 9-extension spring, 10-supporting seat, 11-supporting rubber roller, 12-first suction platform, 13-first printing trolley, 14-first driving roller, 15-second suction platform, 16-second printing trolley, 17-second driving roller, 18-cloth winding roller, 19-first cloth guide roller, 20-second cloth guide roller, 21-third cloth guide roller, 22-angle wrapping roller. DETAILED DESCRIPTION

[0018] Please refer to Figures 1 to 4 The present application provides a wide-width digital inkjet plotter with auxiliary cloth unwinding device, including inkjet unit, cloth unwinding roller 1 and auxiliary cloth unwinding assembly 2, the cloth unwinding roller 1 is arranged at the input end of the inkjet unit, the auxiliary cloth unwinding assembly 2 is arranged at the lower end of the cloth unwinding roller 1, and the auxiliary cloth unwinding assembly 2 and the cloth unwinding roller 1 are mutually adapted, the auxiliary cloth unwinding assembly 2 includes supporting beam, rolling frame, roller lifting plate 3 and roller body 4, the number of the rolling frame is multiple groups, each group of the rolling frame is fixedly connected with the supporting beam and is located at the upper end of the supporting beam, the number of the roller body 4 is two groups, two groups of the roller body 4 are arranged at the upper end of multiple groups of the rolling frame, the number of the roller lifting plate 3 is two groups, two groups of the roller lifting plate 3 are arranged at the two ends of the corresponding roller body 4, and the roller body 4 is rotationally connected with the roller lifting plate 3.

[0019] In the embodiment, the paper roll 1 is used for paper roll of the printing medium, the auxiliary paper roll assembly 2 is used for supporting and dragging the printing medium, the paper roll of the printing medium is kept horizontal and invariable, the paper roll of the printing medium is kept horizontal and invariable by the paper roll 1 and the auxiliary paper roll assembly 2, and the paper roll of the printing medium is kept horizontal and invariable into the spraying unit for double-sided spraying printing. In the auxiliary paper roll assembly 2, the supporting beam is used for fixing and installing the rolling frame, and the supporting roller lifting plate 3 is used for connecting and installing two groups of the supporting roller bodies 4. The two groups of the supporting roller bodies 4 rotate between the two groups of the supporting roller lifting plates 3. The supporting roller body 4 supports and drags the printing medium under the support of the rolling frame, and the printing medium is kept horizontal and invariable.

[0020] Further, the supporting beam comprises a cross beam 5, end plates 6 and fixing supports 7. The number of the end plates 6 is two groups. The two groups of the end plates 6 are fixedly connected with the cross beam 5 and are located at two ends of the cross beam 5 respectively. The number of the fixing supports 7 is multiple groups. Each group of the fixing supports 7 is fixedly connected with the cross beam 5 and is located at two sides of the cross beam 5 respectively.

[0021] In the embodiment, the supporting beam is fixed and installed by the end plates 6. The cross beam 5 is used for fixing and installing multiple groups of the fixing supports 7. Multiple groups of the rolling frames are installed by the support of the multiple groups of the fixing supports 7.

[0022] Further, each group of the rolling frame comprises spring shafts 8, telescopic springs 9, supporting seats 10 and supporting rubber rollers 11. The number of the spring shafts 8 is two groups. The two groups of the spring shafts 8 are fixedly connected with the supporting seats 10 and are located at one side of the supporting seats 10 respectively. The number of the telescopic springs 9 is two groups. Each group of the telescopic springs 9 is sleeved on the outer wall of the corresponding spring shaft 8. The number of the supporting rubber rollers 11 is multiple groups. Each group of the supporting rubber rollers 11 is rotatably connected with the supporting seat 10 and is embedded in the inside of the supporting seat 10.

[0023] In the embodiment, one end of the spring shaft 8 is connected with the supporting seat 10, and the other end is connected with the fixing support 7. The supporting seat 10 is supported and stretched by the cooperation of the spring shaft 8 and the telescopic spring 9. The height can be automatically adjusted with the decrease of the material diameter. The supporting rubber roller 11 supports the supporting roller body 4, improves the lubricity of the supporting roller body 4 and reduces the rolling resistance of the supporting roller body 4.

[0024] Further, the spraying unit comprises a first adsorption platform 12, a first printing trolley 13, a first driving roller 14, a second adsorption platform 15, a second printing trolley 16, a second driving roller 17 and a collecting roller 18, the first adsorption platform 12 is arranged on one side of the cloth releasing roller 1, the first printing trolley 13 is arranged on the upper end of the first adsorption platform 12, and the first printing trolley 13 is matched with the first adsorption platform 12, the first driving roller 14 is arranged on the circumferential side of the first adsorption platform 12, the second adsorption platform 15 is arranged on the output end of the first driving roller 14, the first printing trolley 13 is arranged on the upper end of the first adsorption platform 12, and the first printing trolley 13 is matched with the first adsorption platform 12, the second driving roller 17 is arranged on the circumferential side of the second adsorption platform 15, and the collecting roller 18 is arranged on the output end of the second driving roller 17.

[0025] In the embodiment, when the spraying unit sprays, the printing medium enters into the first adsorption platform 12 through the unwinding of the cloth releasing roller 1 and the auxiliary cloth releasing assembly 2, the printing medium is adsorbed by the first adsorption platform, and the A surface of the printing medium is sprayed by the first printing trolley 13, after the spraying is completed, the printing medium is uniformly driven out of the first adsorption platform 12 under the driving of the first driving roller 14, and enters into the upper end of the second adsorption platform 15, the printing medium is adsorbed by the second adsorption platform 15, and the B surface of the printing medium is sprayed under the cooperation of the second printing trolley 16, so as to complete the double-sided spraying of the A surface and the B surface of the printing medium, and the printing medium after the spraying is completed is driven out by the second driving roller 17, and finally the printing medium is wound by the collecting roller 18.

[0026] Further, the spraying unit further comprises a first cloth guide roller 19, a second cloth guide roller 20, a third cloth guide roller 21 and a wrap angle roller 22, the first cloth guide roller 19 and the second cloth guide roller 20 are respectively arranged between the printing path of the cloth releasing roller 1 and the first adsorption platform 12, the third cloth guide roller 21 is arranged between the printing path of the first driving roller 14 and the second adsorption platform 15, and the wrap angle roller 22 is arranged between the printing path of the second driving roller 17 and the collecting roller 18.

[0027] In the embodiment, the printing medium between the paper roll 1 and the first suction platform 12 is guided by the first and second guide rollers 19 and 20, the printing medium between the driving roller and the second suction platform 15 is guided by the third guide roller 21, and the printing medium between the second driving roller 17 and the paper roll 18 is guided by the wrap angle roller 22. The first, second and third guide rollers 19, 20 and 21 are used to support and guide the printing medium to run in a specified direction and adjust the tension of the printing medium according to the printing requirement. The wrap angle roller 22 generates a friction force at the wrap angle, so that the outlet tension and the inlet tension change, thereby changing the tension value.

[0028] The above only discloses a preferred embodiment of the utility model, of course, cannot with this to limit the utility model right scope, the person skilled in the art can understand that all or part of the processes of the above-mentioned embodiments are implemented, and the equivalent changes made according to the utility model claim still belong to the range covered by the utility model.

Claims

1. A wide-format digital inkjet printer with auxiliary unwinding device, characterized in that, comprising a printing unit, an unwinding roller and an auxiliary unwinding assembly, the unwinding roller is arranged at the input end of the printing unit, the auxiliary unwinding assembly is arranged at the lower end of the unwinding roller, and the auxiliary unwinding assembly and the unwinding roller are matched with each other, the auxiliary unwinding assembly comprises a support beam, a rolling frame, a supporting roller lifting plate and a supporting roller body, the number of the rolling frame is multiple groups, each group of the rolling frame is fixedly connected with the support beam and is located at the upper end of the support beam, the number of the supporting roller body is two groups, and two groups of the supporting roller body are arranged at the upper end of the multiple groups of the rolling frame, the number of the supporting roller lifting plate is two groups, and two groups of the supporting roller lifting plate are arranged at both ends of the corresponding supporting roller body, and the supporting roller body and the supporting roller lifting plate are rotationally connected.

2. The wide-format digital inkjet printer with auxiliary unwinding device according to claim 1, characterized in that, the support beam comprises a cross beam, an end plate and a fixed support, the number of the end plate is two groups, two groups of the end plate are fixedly connected with the cross beam and are located at both ends of the cross beam, and the number of the fixed support is multiple groups, each group of the fixed support is fixedly connected with the cross beam and is located at both sides of the cross beam.

3. The wide-format digital inkjet printer with auxiliary unwinding device according to claim 2, characterized in that, each group of the rolling frame comprises a spring shaft, an extension spring, a support seat and a supporting rubber roller, the number of the spring shaft is two groups, two groups of the spring shaft are fixedly connected with the support seat and are located at one side of the support seat, the number of the extension spring is two groups, each group of the extension spring is sleeved on the outer wall of the corresponding spring shaft, and the number of the supporting rubber roller is multiple groups, each group of the supporting rubber roller is rotationally connected with the support seat and is embedded in the inside of the support seat.

4. The wide-format digital inkjet printer with auxiliary unwinding device according to claim 1, characterized in that, the printing unit comprises a first adsorption platform, a first printing trolley, a first driving roller, a second adsorption platform, a second printing trolley, a second driving roller and a collecting roller, the first adsorption platform is arranged at one side of the unwinding roller, the first printing trolley is arranged at the upper end of the first adsorption platform and matched with the first adsorption platform, the first driving roller is arranged at the circumferential side of the first adsorption platform, the second adsorption platform is arranged at the output end of the first driving roller, the second driving roller is arranged at the circumferential side of the second adsorption platform, and the collecting roller is arranged at the output end of the second driving roller.

5. The wide-format digital inkjet printer with auxiliary unwinding device according to claim 4, characterized in that, ​ ​ ​ ​ The spraying unit further comprises a first cloth guide roller, a second cloth guide roller, a third cloth guide roller and a wrap angle roller, the first cloth guide roller and the second cloth guide roller are respectively arranged between the cloth unwinding roller and the printing path of the first adsorption platform, the third cloth guide roller is arranged between the first driving roller and the printing path of the second adsorption platform, and the wrap angle roller is arranged between the second driving roller and the printing path of the cloth winding roller.

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