CN210312787U

CN210312787U - Unreeling device for inkjet printer

Info

Publication number: CN210312787U
Application number: CN201921211207.8U
Authority: CN
Inventors: 高玉宝
Original assignee: Shanghai Bohao Digital Technology Co Ltd
Current assignee: Shanghai Bohao Digital Technology Co Ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-04-14
Anticipated expiration: 2029-07-29

Abstract

The utility model relates to the technical field of inkjet printers, and discloses an unwinding device for an inkjet printer, which comprises a frame, wherein an unwinding roller is arranged on the frame, a cloth guide roller is arranged on the frame along the cloth conveying direction, a tensioning assembly is arranged between the cloth guide roller and the unwinding roller, the tensioning assembly comprises a pair of support rods arranged on the frame at intervals and a cloth pressing roller arranged between the two support rods, and the cloth pressing roller is positioned at the end part of the support rod far away from the frame; a sliding block is arranged on one side of the frame, which is positioned on the unwinding roller, in a sliding manner along the horizontal direction, and one end of the support rod, which is far away from the cloth pressing roller, is rotatably connected with the sliding block; and a driving spring for driving the sliding block to move back to the unwinding roller is arranged on the rack. When the cloth has lost traction force suddenly in the course of the work, when unreeling the roller and releasing more cloths promptly, the compress roller has the effect that compresses tightly to the cloth to make the cloth be in the state by the tensioning all the time, guaranteed the printing effect of follow-up cloth.

Description

Unreeling device for inkjet printer

Technical Field

The utility model belongs to the technical field of the technique of inkjet printer and specifically relates to an unwinding device for inkjet printer is related to.

Background

The inkjet printer is a product of a large-scale printer series, and has no printing and high definition of a photo printer, but the definition of the inkjet printer which is proposed at present is greatly improved. The inkjet printer uses solvent type or UV curing type ink, wherein the solvent type ink has strong smell and corrosivity, and the ink permeates into the interior of a printing material through corrosion in the printing process, so that an image is not easy to fade, and the inkjet printer has the characteristics of water resistance, ultraviolet resistance, scratch resistance and the like.

If the chinese patent with publication number CN208021002U discloses an inkjet printer, which includes a printing platform, an inkjet trolley, a material receiving and discharging mechanism and a frame disposed at the bottom of the printing platform, wherein the material receiving and discharging mechanism includes a material discharging roller and a material receiving roller, and the material discharging roller is disposed at one side of the frame and below a material inlet of the printing platform. During work, a worker places the cloth roll on the discharging roller, then winds the cloth onto the printing platform from the discharging roller, and the cloth is rolled up by the receiving roller after being processed by the printing platform.

In the in-process of work, because print platform lasts carries out the print job to the cloth, it has traction force to last yardage roll of blowing roller then to last, the yardage roll takes place to rotate at the in-process that is pull, thereby the cloth with on the yardage roll moves down, if print platform stops work suddenly, then print platform disappears to the traction force of unreeling roller last yardage roll, but the yardage roll continues to rotate several rings because self inertial reason, thereby can release too much cloth, this cloth that just leads to between blowing roller and the print platform takes place to relax, the printing effect of cloth can be influenced in the follow-up.

SUMMERY OF THE UTILITY MODEL

Not enough to above-mentioned prior art exists, the utility model discloses an aim at then provides an unwinding device for inkjet printer, can be when unreeling more cloths of roller release, the compress roller still can produce the tensile force with the cloth to can carry out the tensioning to the cloth, make before print platform restarts the cloth still be in by the state of tensioning, thereby guaranteed subsequent effect of printing.

The above object of the present invention is achieved by the following technical solutions:

an unwinding device for an inkjet printer comprises a rack, wherein an unwinding roller is arranged on the rack, a cloth guide roller is arranged on the rack along a cloth conveying direction, a tensioning assembly is arranged between the cloth guide roller and the unwinding roller, the tensioning assembly comprises a pair of supporting rods arranged on the rack at intervals and a cloth pressing roller arranged between the two supporting rods, and the cloth pressing roller is positioned at the end part of the supporting rod far away from the rack; a sliding block is arranged on one side of the frame, which is positioned on the unwinding roller, in a sliding manner along the horizontal direction, and one end of the support rod, which is far away from the cloth pressing roller, is rotatably connected with the sliding block; and the rack is provided with a driving spring for driving the sliding block to move back to the unwinding roller.

Through adopting above-mentioned technical scheme, when unwinding device unreeled, twined the cloth earlier, and the staff draws the end of cloth to pull down from unreeling the roller, then passes from cloth pressing roller towards one side of frame, and the one side of keeping away from the frame from the fabric guide roll is advanced after that, makes the cloth enter into to frame inside at last and processes. The cloth pressing roller presses the cloth under the gravity of the cloth pressing roller, so that the cloth is in a tensioning state. Drive spring has all the time to the sliding block orientation removal of unreeling the roller back to back, when print platform stop work, pulling force on the cloth is hour, and unreel the roller this moment and still take place to rotate under inertial effect, and drive spring drives the compress roller and has the orientation and to unreel ascending effort of roller orientation back to back, thereby can drive the cloth orientation of many releases and to unreel the direction motion of roller, thereby can carry out the tensioning to the cloth, make print platform before the restart cloth still be in by the state of tensioning, thereby subsequent effect of printing has been guaranteed.

The utility model discloses further set up to: two opposite side walls of the rack are provided with sliding grooves along the horizontal direction; the two same sliding blocks are arranged in the two sliding grooves in a sliding mode respectively; one end of the driving spring is connected with the side wall of the unwinding roller, which is close to the sliding block, the other end of the driving spring is connected with the side wall of the unwinding roller, which is close to the sliding groove, and the driving spring is always in a compressed state.

Through adopting above-mentioned technical scheme, through setting up the sliding tray in the frame to driving spring locates the state of compressed all the time, thereby makes the sliding block more stable in gliding, makes driving spring drive compress roller more smooth and easy, simple structure when moving towards unreeling the roller dorsad simultaneously.

The utility model discloses further set up to: the frame is provided with a waist-shaped hole communicated with the sliding groove along the length direction of the sliding groove, one side of the sliding groove close to the unwinding roller is provided with an adjusting plate in a sliding mode, one end, far away from the sliding block, of the driving spring is tightly abutted to the adjusting plate, a connecting piece is fixedly arranged on the adjusting plate and penetrates through the waist-shaped hole, and a pushing piece for driving the connecting piece to move towards the sliding block is arranged on the frame.

Through adopting above-mentioned technical scheme, when needs make the compress roller to the packing force of cloth change, through using the impeller to can drive the direction motion of connection piece orientation sliding block or back to the sliding block, thereby can make the regulating plate change to drive spring's pressure, finally make drive spring change to the effort of sliding block, thereby change the packing force of compress roller to the cloth.

The utility model discloses further set up to: the pushing piece comprises a pushing screw rod rotationally arranged on the rack and a mounting piece in threaded connection with the pushing screw rod, and the mounting piece is fixedly connected with the connecting piece.

Through adopting above-mentioned technical scheme, when needs adjustment regulating plate, the staff promotes the lead screw through rotating, along with the rotation that promotes the lead screw for the installation piece takes place to remove along the axis direction that promotes the lead screw, thereby drives the connection piece and moves along with the direction of motion of installation piece, simple structure, and the transmission is stable, and makes things convenient for the staff to operate.

The utility model discloses further set up to: the pushing screw rod is provided with a handle part.

Through adopting above-mentioned technical scheme, through setting up the handle portion on promoting the lead screw to make that the staff is more convenient to the application of force that promotes the lead screw, thereby make the bare-handed position that just can adjust the adjustment sheet of staff.

The utility model discloses further set up to: threaded connection has positioning bolt on the sliding block, branch with the sliding block is articulated, positioning bolt with the tie point of sliding block is located branch with the pin joint of sliding block is close to one side of driving spring.

Through adopting above-mentioned technical scheme, when the staff need twine the cloth in the frame at first, the staff drags the compress roller earlier and drives branch and rotate towards the direction of unreeling the roller back to back, then twist and move positioning bolt, make positioning bolt's pole portion screw out from the lateral wall of frame, and be located branch one side of unreeling the roller, then the staff releases and unreels the roller, unreel the roller and drive branch orientation under the effect of self gravity and unreel the direction motion of roller, finally make branch support tightly at positioning bolt's pole portion, make the compress roller can not produce the effort to the cloth, thereby conveniently pass the cloth from the direction of compress roller towards the frame, moreover, the steam generator is simple in structure, and convenient operation.

The utility model discloses further set up to: a first guide rod is fixedly arranged on the side wall, facing the sliding block, of the adjusting plate, and a second guide rod is fixedly arranged on the side wall, facing the first guide rod, of the sliding block; one end of the driving spring is sleeved on the first guide rod, and the other end of the driving spring is sleeved on the second guide rod.

Through adopting above-mentioned technical scheme, through setting up first guide bar and second guide bar to make the regulating plate more stable when promoting drive spring and take place deformation, prevent that drive spring from taking place to buckle at the in-process of deformation.

The utility model discloses further set up to: the sliding block is fixedly provided with a driving rod, the driving rod penetrates out of the waist-shaped hole, and the driving rod is arranged in the waist-shaped hole in a sliding mode.

Through adopting above-mentioned technical scheme, through setting up the actuating lever, make things convenient for the staff to externally operate. When needs twine the cloth, the staff is through the direction pulling actuating lever of unreeling the roller towards to drive the sliding block and move towards the direction of unreeling the roller, thereby make the compress roller can move towards the direction of the sliding block of keeping back to, thereby the convenience twines the cloth.

To sum up, the utility model discloses a beneficial technological effect does:

1. in the working process, the cloth suddenly loses traction force, when the unwinding roller releases more cloth, the driving spring drives the cloth pressing roller to have acting force in the direction back to the unwinding roller, so that the cloth can be driven to move in the direction back to the unwinding roller, the cloth is tensioned, the cloth is still in a tensioned state before the printing platform is restarted, and the subsequent printing effect is ensured;

2. when the pressing force of the cloth pressing roller on the cloth needs to be changed, the pushing piece is used, so that the connecting piece can be driven to move towards the sliding block or back to the sliding block, the pressure of the adjusting plate on the driving spring can be changed, and finally the acting force of the driving spring on the sliding block is changed, so that the pressing force of the cloth pressing roller on the cloth is changed;

3. firstly, when a worker needs to wind cloth on a rack, the worker drags a cloth pressing roller to drive a support rod to rotate in a direction back to an unwinding roller, then screws a positioning bolt, so that a rod part of the positioning bolt is screwed out of the side wall of the rack and is positioned on one side of the unwinding roller, then the worker releases the unwinding roller, the unwinding roller drives the support rod to move in the direction of the unwinding roller under the action of self gravity, and finally the support rod is tightly abutted against the rod part of the positioning bolt, so that the cloth pressing roller can not generate acting force on the cloth, and the cloth can conveniently pass through the cloth pressing roller in the direction of the rack;

4. when needs twine the cloth, the staff is through the direction pulling actuating lever of unreeling the roller towards to drive the sliding block and move towards the direction of unreeling the roller, thereby make the compress roller can move towards the direction of the sliding block of keeping back to, thereby the convenience twines the cloth.

Drawings

Fig. 1 is a schematic view of an overall structure of an unwinding device for an inkjet printer according to the present invention;

FIG. 2 is an enlarged schematic view of section W of FIG. 1, illustrating the structure of the tension assembly;

FIG. 3 is an enlarged view of section Z of FIG. 1, showing the structure of the pusher.

Reference numerals: 1. a frame; 2. unwinding rollers; 3. rolling; 4. a plug; 5. a printing platform; 6. a cloth guide roller; 7. a tension assembly; 71. a strut; 72. a cloth pressing roller; 8. a sliding groove; 9. a pusher member; 91. pushing the screw rod; 92. mounting a sheet; 10. a slider; 11. a fixing sheet; 12. a long round hole; 13. a kidney-shaped hole; 14. a drive rod; 15. a first guide bar; 16. a second guide bar; 17. an adjusting plate; 18. connecting sheets; 19. a hand holding part; 20. positioning the bolt; 21. a drive spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description 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.

Referring to fig. 1, the utility model discloses an unwinding device for inkjet printer, including frame 1, rotate to install in frame 1 and unreel roller 2, unreel roller 2 and be used for installing air brushing yardage roll 3 to unreel roller 2 is the inflatable shaft. The two ends of the unwinding roller 2 are provided with plugs 4, the plugs 4 are round tables, and the end faces with smaller areas of the two plugs 4 are arranged close to each other. The side of the plug 4 is integrally provided with three anti-slip strips along the bus direction, and the three anti-slip strips are arranged in a pairwise parallel manner at equal intervals.

Referring to fig. 1 and 2, a printing platform 5 for performing inkjet printing on cloth is arranged at the top of the frame 1, a cloth guide roller 6 is rotatably arranged on the frame 1 between the printing platform 5 and the unwinding roller 2, and the cloth guide roller 6 is parallel to the unwinding roller 2. A tensioning assembly 7 is arranged between the cloth guide roller 6 and the unwinding roller 2, and the tensioning assembly 7 comprises a support rod 71 and a cloth pressing roller 72. The two same supporting rods 71 are hinged with the machine frame 1 at one end. The two support rods 71 are respectively positioned at two ends of the frame 1 and are arranged at intervals. Two ends of the cloth pressing roller 72 are respectively connected with the two supporting rods 71 in a rotating way, and the cloth pressing roller 72 is positioned at one end of the supporting rod 71 far away from the machine frame 1.

Referring to fig. 3, the side wall of the rack 1 is provided with two sliding grooves 8 along the horizontal direction, and the two sliding grooves 8 are provided on two opposite inner side walls of the rack 1 respectively. The opening direction of the slide groove 8 is directed toward the inside of the chassis 1. Sliding blocks 10 are respectively arranged in the two sliding grooves 8 in a sliding mode, and one ends, far away from the cloth pressing roller 72, of the two supporting rods 71 are hinged with the sliding blocks 10 through pin shafts. The frame 1 is welded with a fixing piece 11 for blocking the sliding groove 8, the fixing piece 11 is provided with a long round hole 12 along the length direction of the sliding groove 8 for a pin shaft on the support rod 71 to penetrate through, and the fixing piece 11 prevents the sliding block 10 from being separated from the sliding groove 8.

Referring to fig. 2 and 3, the sliding groove 8 is provided with a kidney-shaped hole 13 along the length direction of the sliding groove 8 away from the bottom of the mounting piece 92. The slide block 10 is welded with a driving rod 14, and the driving rod 14 penetrates out of the kidney-shaped hole 13 and can slide in the kidney-shaped hole 13. The side wall of the sliding block 10 close to the cloth pressing roller 72 is welded with a second guide rod 16, the sliding groove 8 is provided with an adjusting plate 17 in a sliding mode, the adjusting plate 17 is located on one side of the sliding block 10 close to the cloth pressing roller 72, the adjusting plate 17 is welded with a first guide rod 15 towards the orthographic projection position of the second guide rod 16, and a driving spring 21 is arranged between the adjusting plate 17 and the sliding block 10. One end of the driving spring 21 is sleeved on the first guide rod 15 and tightly propped against the adjusting plate 17; one end of the driving spring 21 away from the adjusting plate 17 is sleeved on the second guide rod 16 and tightly abuts against the sliding block 10, and meanwhile, the driving spring 21 is always in a compressed state.

Referring to fig. 3, a connecting piece 18 is welded on the adjusting plate 17, the connecting piece 18 passes through the kidney-shaped hole 13, and the connecting piece 18 can slide in the kidney-shaped hole 13. The outer side wall of the frame 1 is provided with a pushing piece 9, and the pushing piece 9 comprises a pushing screw rod 91 and a mounting piece 92. The push screw 91 is rotatably connected to the outer side wall of the frame 1 through a bearing and is located below the kidney-shaped hole 13. The axial direction of the push screw 91 coincides with the longitudinal direction of the slide groove 8. The mounting piece 92 is screwed to the push screw 91 and is provided integrally with the connecting piece 18. The fixed handle 19 that is provided with of one end of the unwinding roller 2 of promotion lead screw 91 orientation, the staff drives promotion lead screw 91 and rotates through rotating handle 19 to drive installation piece 92 along the axis direction motion of promotion lead screw 91, thereby drive connection piece 18 along the axis direction removal of promotion lead screw 91, finally make regulating plate 17 can slide in sliding tray 8.

Referring to fig. 2 and 3, the two sliding blocks 10 are both connected with a positioning bolt 20 in a threaded manner, the threaded connection point of the positioning bolt 20 and the sliding block 10 is located on the side of the hinge point of the support rod 71 and the sliding block 10 close to the unwinding roller 2, and the head of the positioning bolt 20 is located in the kidney-shaped hole 13. When needing to support compress roller 72, the staff promotes compress roller 72 towards one side of fabric guide 6 earlier, then twists positioning bolt 20 for pole portion is located below branch 71, then releases compress roller 72, thereby makes branch 71 take on positioning bolt 20, and positioning bolt 20 on the sliding block 10 of both sides supports the branch 71 of both sides respectively, thereby fixes compress roller 72 on frame 1 temporarily, makes things convenient for the cloth to wear to establish.

The implementation principle is as follows:

during working, the end with the smaller area of the two plugs 4 is inserted into the two ends of the spray painting cloth roll 3, then the unwinding roller 2 penetrates through the two plugs 4 and the spray painting cloth roll 3, and the unwinding roller 2 is an air expansion shaft, so that the spray painting cloth roll 3 can be tightly supported. After the installation is finished and the unwinding roller 2 is unwound, the cloth can be unwound.

Before unwinding, the worker first twists the positioning bolt 20, so that the positioning bolt 20 supports the rod 71 and the cloth pressing roller 72. The worker then pulls the end of the cloth through the cloth pressing roller 72 towards the side of the frame 1, and then pulls the cloth through the cloth guide roller 6 away from the side of the frame 1, finally making the cloth enter the printing platform 5.

After the cloth is wound, the positioning bolt 20 is screwed, so that the rod part of the positioning bolt 20 moves towards the outer side of the rack 1, and the positioning bolt 20 does not interfere with the support rod 71 when the support rod 71 rotates downwards. Then the cloth is compressed by the cloth pressing roller 72 under the action of self gravity, and finally the printing platform 5 draws and sprays the cloth.

When the printing platform 5 is suddenly stopped, the unwinding roller 2 may release excess cloth due to its own inertia. Because drive spring 21 has an elasticity to sliding block 10 all the time to when printing platform 5 stopped, sliding block 10 can drive branch 71 towards the direction motion of unreeling roller 2 back to back, drive compress roller 72 towards the direction removal of unreeling roller 2 back to back, thereby can release more to unreeling roller 2 and still have the effect of tensioning.

When the cloth is wound, a worker pulls the driving rods 14 at the two ends of the machine frame 1 at the same time and pulls the driving rods towards the unwinding roller 2, so that the pressure of the cloth pressing roller 72 on the cloth is reduced, and the cloth can conveniently pass through the machine frame 1 from the cloth pressing roller 72.

When the driving spring 21 is loosened after long-term use, the operator twists the handle 19 to drive the pushing screw 91 to rotate, and finally the adjusting plate 17 can be driven to slide in the waist-shaped hole 13, so that the pressure of the adjusting plate 17 on the driving spring 21 can be changed, and the driving spring 21 can always have elasticity on the sliding block 10.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an unwinding device for inkjet printer, includes frame (1), be provided with unwinding roller (2) on frame (1), its characterized in that: the cloth guide device is characterized in that a cloth guide roller (6) is arranged on the rack (1) along the cloth conveying direction, a tensioning assembly (7) is arranged between the cloth guide roller (6) and the unwinding roller (2), the tensioning assembly (7) comprises a pair of supporting rods (71) arranged on the rack (1) at intervals, and a cloth pressing roller (72) arranged between the two supporting rods (71), and the cloth pressing roller (72) is positioned at the end part of each supporting rod (71) far away from the rack (1); a sliding block (10) is arranged on one side, located on the unwinding roller (2), of the rack (1) in a sliding mode along the horizontal direction, and one end, far away from the cloth pressing roller (72), of the support rod (71) is rotatably connected with the sliding block (10); and the rack (1) is provided with a driving spring (21) for driving the sliding block (10) to move towards the direction back to the unwinding roller (2).

2. The unwinding device for the inkjet printer according to claim 1, wherein: two opposite side walls of the rack (1) are respectively provided with a sliding groove (8) along the horizontal direction; the two same sliding blocks (10) are arranged in the two sliding grooves (8) in a sliding mode respectively; one end of the driving spring (21) is close to the sliding block (10) and is connected with the side wall of the unwinding roller (2), the other end of the driving spring is close to the side wall of the unwinding roller (2) through the sliding groove (8) and is abutted tightly, and the driving spring (21) is always in a compressed state.

3. The unwinding device for the inkjet printer according to claim 2, wherein: waist-shaped holes (13) communicated with the sliding grooves (8) are formed in the rack (1) along the length direction of the sliding grooves (8), an adjusting plate (17) is arranged on one side, close to the unwinding roller (2), of the sliding grooves (8) in a sliding mode, one end, far away from the sliding blocks (10), of the driving spring (21) is tightly abutted to the adjusting plate (17), a connecting piece (18) is fixedly arranged on the adjusting plate (17), the connecting piece (18) penetrates through the waist-shaped holes (13), and a pushing piece (9) for driving the connecting piece (18) to move towards the sliding blocks (10) is arranged on the rack (1).

4. The unwinding device for the inkjet printer according to claim 3, wherein: the pushing piece (9) comprises a pushing screw rod (91) rotatably arranged on the rack (1) and a mounting piece (92) in threaded connection with the pushing screw rod (91), and the mounting piece (92) is fixedly connected with the connecting piece (18).

5. The unwinding device for the inkjet printer according to claim 4, wherein: a handle part (19) is arranged on the push screw rod (91).

6. The unwinding device for the inkjet printer according to claim 2, wherein: threaded connection has positioning bolt (20) on sliding block (10), branch (71) with sliding block (10) are articulated, positioning bolt (20) with the tie point of sliding block (10) is located branch (71) with the pin joint of sliding block (10) is close to one side of driving spring (21).

7. The unwinding device for the inkjet printer according to claim 3, wherein: a first guide rod (15) is fixedly arranged on the side wall, facing the sliding block (10), of the adjusting plate (17), and a second guide rod (16) is fixedly arranged on the side wall, facing the first guide rod (15), of the sliding block (10); one end of the driving spring (21) is sleeved on the first guide rod (15), and the other end of the driving spring is sleeved on the second guide rod (16).

8. The unwinding device for the inkjet printer according to claim 3, wherein: the sliding block (10) is fixedly provided with a driving rod (14), the driving rod (14) penetrates out of the waist-shaped hole (13), and the driving rod (14) is arranged in the waist-shaped hole (13) in a sliding mode.