CN214721882U

CN214721882U - Paper fixing device of laser engraving machine

Info

Publication number: CN214721882U
Application number: CN202121281203.4U
Authority: CN
Inventors: 栾永勤; 朱清莹; 刘刚; 陶文娟; 张晓锋; 李猛
Original assignee: Shanghai Lingshe Advertising Co ltd
Current assignee: Shanghai Lingshe Advertising Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-11-16
Anticipated expiration: 2031-06-08

Abstract

The application relates to a paper fixing device of a laser engraving machine, which comprises a mounting frame, a lifting frame and a cylinder, wherein the mounting frame is used for being fixed on a machine tool of the laser engraving machine; the laser engraving machine is characterized in that a pressing plate, a pressing roller and a driving mechanism are arranged on the lifting frame, the pressing plate is located on one side, close to a workbench of the laser engraving machine, of the lifting frame, the driving mechanism is connected with the pressing roller, and the driving mechanism is used for driving the pressing roller to move in a direction close to or far away from the pressing plate on the lifting frame. The paper is tightly pressed on the workbench of the laser engraving machine through the pressing plate and the pressing roller, so that the stability of the paper in the engraving process is good, and the engraving precision of the paper is improved.

Description

Paper fixing device of laser engraving machine

Technical Field

The application relates to a laser engraving machine, in particular to a paper fixing device of the laser engraving machine.

Background

The laser engraving machine is a device for engraving paper by using laser, can engrave various fonts and patterns on the surface of the paper, has high engraving precision, and is widely applied to the fields of printing and manufacturing of various billboards and the like.

At present, when using laser engraving machine, generally directly tile the paper to laser engraving machine's workstation on, the easy vibration that leads to because of equipment of in-process of carving results in the position to appear small amplitude skew, influences the sculpture quality to the paper.

SUMMERY OF THE UTILITY MODEL

In order to improve the stability of paper in the sculpture process, improve laser engraving machine's sculpture quality, this application provides a laser engraving machine paper fixing device.

The application provides a laser engraving machine paper fixing device adopts following technical scheme:

a paper fixing device of a laser engraving machine comprises a mounting frame, a lifting frame and a cylinder, wherein the mounting frame is used for being fixed on a machine tool of the laser engraving machine; the laser engraving machine is characterized in that a pressing plate, a pressing roller and a driving mechanism are arranged on the lifting frame, the pressing plate is located on one side, close to a workbench of the laser engraving machine, of the lifting frame, the driving mechanism is connected with the pressing roller, and the driving mechanism is used for driving the pressing roller to move in a direction close to or far away from the pressing plate on the lifting frame.

Through adopting above-mentioned technical scheme, carve the during operation to the paper, place the paper on laser engraving machine's the workstation, and make the one end of paper stretch into the below of clamp plate, rethread cylinder drives crane and clamp plate and compresses tightly on the paper, make the one end of paper fixed, the compression roller also with paper surface contact simultaneously, then drive the one end that the pressure roller removed to the paper and kept away from the clamp plate by actuating mechanism again, thereby it is fixed to make compression roller and clamp plate compress tightly the both ends of paper respectively, and the compression roller can also pave the paper on the workstation when removing, make the surface of paper and workstation laminate more, guarantee the stability of paper at sculpture in-process, improve the sculpture precision to the paper.

Optionally, a spongy cushion is fixedly arranged on the bottom surface of the pressing plate.

Through adopting above-mentioned technical scheme, the foam-rubber cushion is comparatively soft, makes the foam-rubber cushion replace clamp plate and paper contact, can play the guard action to the paper, is difficult for with paper surface scratch.

Optionally, the height of the lowest end of the pressing roller is higher than the height of the bottom surface of the spongy cushion.

Through adopting above-mentioned technical scheme, the in-process that the clamp plate compressed tightly the paper, and the foam-rubber cushion can be compressed, makes the thickness of foam-rubber cushion diminish, and the foam-rubber cushion compresses tightly the back with the paper, and the compression roller just in time can not exert too big pressure with the surface contact of paper to the paper, ensures that the compression roller can be smooth and easy removes on the paper surface.

Optionally, the compression roller is connected with a sliding block along the two axial ends of the compression roller in a rotating mode, the sliding block is connected with the lifting frame in a sliding mode, the driving mechanism is connected with the sliding block, and the driving mechanism is used for driving the sliding block to slide on the lifting frame.

Through adopting above-mentioned technical scheme, when actuating mechanism drove the slider and remove, the compression roller can follow the slider and together remove to the compression roller can rotate along self axis after receiving the frictional force of paper at the removal in-process, reduces the friction of compression roller to the paper surface.

Optionally, the driving mechanism comprises a screw rod rotatably connected to the lifting frame and a driving motor installed on the lifting frame, the screw rod penetrates through the sliding block and is in threaded connection with the sliding block, and the driving motor is connected with the screw rod.

By adopting the technical scheme, the driving motor drives the screw rod to rotate, the sliding block moves on the screw rod immediately, the function of driving the compression roller to move is realized, the transmission stability of the screw rod is high, the control mode is simple, and the moving distance of the compression roller can be conveniently controlled according to the lengths of different paper.

Optionally, the number of the screw rods is two, the two screw rods correspond to the two sliding blocks one to one, the screw rods are in threaded connection with the corresponding sliding blocks, the driving motor is connected with one of the screw rods, a linkage assembly is arranged between the two screw rods, and the linkage assembly is used for enabling the two screw rods to synchronously rotate in the same direction.

Through adopting above-mentioned technical scheme, driving motor drives two screw rods simultaneously and rotates, can make the slider of compression roller both sides atress removal simultaneously, makes the both ends of compression roller remove more synchronous, improves the stability that the compression roller removed.

Optionally, the linkage assembly includes two synchronous pulleys and a toothed belt fitted on the two synchronous pulleys, and the two synchronous pulleys are respectively and fixedly connected to the two screws.

By adopting the technical scheme, when the driving motor drives the screw rod connected with the driving motor to rotate, the synchronous belt wheel positioned on the screw rod can rotate along with the screw rod, and simultaneously, the power is transmitted to the other synchronous belt wheel through the toothed belt, so that the purpose of synchronous and equidirectional rotation of the two screw rods is realized, the transmission efficiency of the toothed belt is better, and the phenomenon of belt sliding is not easy to occur.

Optionally, the linkage subassembly still includes the tensioning band pulley, the tensioning band pulley rotates to be connected at the crane, the tensioning band pulley butt is on the toothed belt.

By adopting the technical scheme, the tensioning belt wheel keeps the toothed belt in a tensioned state, so that the power transmission between the two synchronous belt wheels is ensured.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the paper is tightly pressed on the workbench of the laser engraving machine through the pressing plate and the pressing roller, so that the stability of the paper in the engraving process is better, and the engraving precision of the paper is improved;

2. the paper can be flatly laid on the workbench in a mode that the compression roller moves on the paper, so that the paper is more attached to the surface of the workbench, and the stability of the paper in the engraving process is further improved;

3. the driving of the movement of the compression roller is realized by the transmission of the screw rod and the sliding block, the structure is simple, the control is convenient, and the practicability is higher.

Drawings

Fig. 1 is a schematic view showing a structure of a laser engraving machine in the embodiment of the present application.

Fig. 2 is a schematic structural view showing a fixing device and a laser engraving machine in the embodiment of the present application.

FIG. 3 is a partial sectional view showing a positional relationship between the upper platen of the crane and the platen roller.

Fig. 4 is an exploded view showing a structure of a crane and a mount.

Fig. 5 is an enlarged view showing a portion a of fig. 4.

Fig. 6 is a partial view showing the structure of the linkage assembly.

Description of reference numerals: 1. a machine tool; 11. a work table; 12. a cross beam; 13. a mobile box; 14. a laser head; 15. a connecting member; 2. a mounting frame; 21. a top beam; 22. a support plate; 3. a lifting frame; 31. a side plate; 32. an end plate; 33. a connecting plate; 34. a slide bar; 4. a cylinder; 5. pressing a plate; 51. a sponge cushion; 6. a compression roller; 61. a slider; 7. a drive mechanism; 71. a screw; 72. a drive motor; 73. a linkage assembly; 731. a synchronous pulley; 732. a toothed belt; 733. tensioning the belt pulley; 8. and a guide shaft.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

Referring to fig. 1, the laser engraving machine comprises a machine tool 1, wherein a workbench 11 is fixedly arranged at the top of the machine tool 1, the workbench 11 is a horizontally placed rectangular plate, and the top surface of the workbench 11 is used for placing engraved paper; a cross beam 12 is arranged above the workbench 11, the cross beam 12 is arranged along the width direction of the workbench 11, two ends of the cross beam 12 are respectively provided with a movable box 13, the movable boxes 13 are connected to the machine tool 1 in a sliding manner, the workbench 11 is positioned between the two movable boxes 13, and the movable boxes 13 are used for driving the cross beam 12 to move along the length direction of the workbench 11; the laser head 14 is mounted on the cross beam 12, the laser head 14 is used for engraving paper on the workbench 11, a connecting piece 15 is arranged between the laser head 14 and the cross beam 12, the connecting piece 15 is used for driving the laser head 14 to move on the cross beam 12 along the width direction of the workbench 11, and the laser head 14 can engrave various patterns on the paper on the workbench 11 under the driving of the moving box 13 and the connecting piece 15.

The embodiment of the application discloses laser engraving machine paper fixing device, fixing device are used for fixing the paper of placing on workstation 11, guarantee the stability of paper in the sculpture in-process.

Referring to fig. 2 and 3, the fixing device comprises an installation frame 2 and a lifting frame 3, the installation frame 2 is fixed on the machine tool 1, the lifting frame 3 is located between the workbench 11 and the cross beam 12, a cylinder 4 is arranged on the installation frame 2, the cylinder 4 is connected with the lifting frame 3 and used for driving the lifting frame 3 to do lifting motion close to or far away from the direction of the workbench 11, and a pressing plate 5, a pressing roller 6 and a driving mechanism 7 are arranged on one side, close to the workbench 11, of the lifting frame 3.

After the paper that will be carved is placed on workstation 11, cylinder 4 drives crane 3 downstream, makes clamp plate 5 compress tightly the one end of paper on workstation 11, and compression roller 6 also contacts with the paper surface simultaneously to make actuating mechanism 7 drive compression roller 6 and roll on the paper surface, make compression roller 6 flatten the paper on workstation 11, make the paper remain stable at the sculpture in-process with this messenger's paper, improve laser engraving machine's sculpture precision.

Wherein, referring to fig. 4, mounting bracket 2 includes back timber 21 and two backup pads 22, and back timber 21 is located the top of workstation 11, and back timber 21 is parallel with workstation 11, and back timber 21 sets up along the width direction of workstation 11, and two backup pads 22 are located the both ends of back timber 21 respectively, and backup pad 22 is perpendicular with workstation 11, and backup pad 22's top and back timber 21 fixed connection, bottom and lathe 1 fixed connection make back timber 21 can be stable be in workstation 11 top.

Referring to fig. 2 again, in this embodiment, the number of the mounting frames 2 is two, the two mounting frames 2 are respectively located on two sides of the workbench 11 along the length direction, and the cross beam 12 and the moving box 13 are both located between the two mounting frames 2, so that the cross beam 12 can move between the two mounting frames 2 without interfering with the movement of the laser head 14 in the length direction of the workbench 11.

Referring to fig. 4, the crane 3 includes two side plates 31 and two end plates 32, the side plates 31 are disposed along the length direction of the worktable 11, the two side plates 31 are respectively disposed at both sides of the worktable 11 along the width direction thereof, and the two side plates 31 are disposed between the two movable boxes 13. Two end plates 32 are arranged along the width direction of the workbench 11, the two end plates 32 are respectively positioned at two sides of the workbench 11 along the length direction of the workbench, and two ends of each end plate 32 are fixedly connected with the two side plates 31. The laser head 14 is positioned in the space enclosed by the two side plates 31 and the two side end plates 32, and the paper is placed in the space enclosed by the side plates 31 and the end plates 32 during carving, so that the lifting frame 3 cannot interfere with the carving work of the laser head 14 on the paper.

Referring to fig. 3 and 4, a connecting plate 33 is fixedly arranged at the top of each end plate 32, the connecting plate 33 is positioned right below the top beam 21 on the corresponding side, the connecting plate 33 is parallel to the top beam 21, a plurality of sliding rods 34 are fixedly arranged on the top surface of the connecting plate 33, the sliding rods 34 are perpendicular to the connecting plate 33, and the top ends of the sliding rods 34 penetrate through the top beam 21 and are connected with the top beam in a sliding manner, so that the whole crane 3 can perform lifting action on the two top beams 21. Each top beam 21 is provided with a plurality of cylinders 4, the cylinders 4 are uniformly arranged along the length direction of the top beam 21 at intervals, in the embodiment, the number of the cylinders 4 is two, the cylinder bodies of the cylinders 4 are fixedly connected with the top beam 21, and the piston rods of the cylinders 4 penetrate through the top beam 21 and then are fixedly connected with the connecting plate 33, so that the lifting action of the lifting frame 3 can be controlled by controlling the extension and retraction of the piston rods of the cylinders 4.

Referring to fig. 3, the pressing plate 5 is located on the same side of the side plate 31 along the length direction of the pressing plate, the pressing plate 5 is arranged along the width direction of the workbench 11, and the top surface of the pressing plate 5 is fixedly connected with the two side plates 31 and the end plate 32 corresponding to one side, so that the lifting frame 3 can drive the pressing plate 5 to lift, and the purpose of pressing paper is achieved. The bottom surface of clamp plate 5 has still set firmly foam-rubber cushion 51, and foam-rubber cushion 51's material is comparatively soft, utilizes foam-rubber cushion 51 to replace clamp plate 5 and paper contact, can protect the paper, is difficult for appearing the damaged phenomenon of paper.

Referring to fig. 4 and 5, the pressing roller 6 and the pressing plate 5 are located on the same side of the side plates 31, the pressing roller 6 is located between the two side plates 31, the pressing roller 6 is located on the side of the pressing plate 5 close to the laser head 14, and the pressing roller 6 is disposed along the width direction of the worktable 11. All rotate along self axial both ends and be connected with slider 61 for compression roller 6, two slider 61 and two curb plate 31 one-to-ones, one side that each curb plate 31 is close to compression roller 6 all is equipped with guiding axle 8, guiding axle 8 sets up along the length direction of workstation 11, guiding axle 8 respectively with two end plate 32 fixed connection along self axial both ends, and guiding axle 8 runs through slider 61, makes slider 61 sliding connection on guiding axle 8. The driving mechanism 7 is mounted on the end plate 32 above the platen 5 for driving the two sliders 61 to slide on the guide shaft 8, so that the platen roller 6 can both rotate around its axis and move along the length of the table 11.

When the driving mechanism 7 drives the slider 61 to move, the guide roller can move on the paper along with the slider 61, the paper can be pressed flat on the workbench 11 in the moving process, and the guide roller can rotate around the axis of the guide roller when being subjected to large friction force, so that the surface of the paper is not abraded.

And, as shown in fig. 3, the lowest end of the press roller 6 is higher than the lowest end of the sponge pad 51, and in the process that the pressing plate 5 presses the paper, the sponge pad 51 is compressed and deformed, so that the thickness of the sponge pad 51 is reduced, and at the moment, the bottom end of the press roller 6 is just in contact with the surface of the paper, so that excessive pressure on the paper is avoided, and the press roller 6 can move smoothly.

Referring to fig. 4 and 5, the driving mechanism 7 includes two screws 71, a driving motor 72 and a linkage assembly 73, the two screws 71 correspond to the two guide shafts 8 one by one, the screws 71 are located above the corresponding guide shafts 8, two ends of the screws 71 along the axial direction thereof are respectively rotatably connected to the end plates 32 on two sides, and the screws 71 penetrate through the sliding blocks 61 on the corresponding side and are connected to the same in a threaded manner. The driving motor 72 is installed on one side of the connecting plate 33 far away from the press roll 6, and the driving motor 72 is connected with one of the screw rods 71, so that the driving motor 72 can drive the screw rod 71 to rotate, and the linkage assembly 73 is located between the two screw rods 71, so that the two screw rods 71 can synchronously rotate.

After the driving motor 72 is started, the driving motor 72 can simultaneously drive the two screws 71 to synchronously rotate in the same direction through the linkage assembly 73, so that the two sliders 61 are driven to synchronously slide in the same direction, the two ends of the compression roller 6 synchronously move, and the moving stability of the compression roller 6 is ensured.

Referring to fig. 6, the linkage assembly 73 includes two synchronous pulleys 731, a toothed belt 732 and a tension pulley 733, the synchronous pulleys 731 are in one-to-one correspondence with the screws 71, an end of the screw 71 penetrates through the connecting plate 33 and then is fixedly connected with the synchronous pulleys 731, and the toothed belt 732 is fitted on the two synchronous pulleys 731, so that the two synchronous pulleys 731 can be driven by the toothed belt 732. The tension pulley 733 is rotatably connected to the connecting plate 33, the tension pulley 733 is positioned between the two timing pulleys 731, and the circumferential surface of the tension pulley 733 abuts against the toothed belt 732 to keep the toothed belt 732 in a tensioned state.

When the driving motor 72 drives the screw 71 connected to the driving motor to rotate, the synchronous pulley 731 on the screw 71 also rotates along with the driving motor, and the toothed belt 732 drives the other synchronous pulley 731 and the screw 71 to rotate, so as to achieve the purpose of transmission between the two screws 71. In addition, the matching transmission efficiency of the synchronous pulley 731 and the toothed belt 732 is higher, the phenomenon of belt slipping is not easy to occur, and the rotation synchronization effect of the two screws 71 is better.

The implementation principle of the paper fixing device of the laser engraving machine is as follows: when the paper is engraved, the paper is placed on the workbench 11, one end of the paper extends into the lower portion of the pressing plate 5, the lifting frame 3 is pushed downwards by the air cylinder 4, the spongy cushion 51 on the pressing plate 5 is pressed on the end portion of the paper, meanwhile, the pressing roller 6 is also in surface contact with the paper, then the driving mechanism 7 drives the pressing roller 6 to move to one end, far away from the pressing plate 5, of the paper, the pressing roller 6 and the pressing plate 5 are enabled to fix the two ends of the paper simultaneously, the pressing roller 6 flattens the paper on the workbench 11 in the moving process, the paper is kept stable in position in the engraving process, and the engraving precision of the paper is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a laser engraving machine paper fixing device which characterized in that: the device comprises a mounting frame (2) fixed on a laser engraving machine tool (1), a lifting frame (3) connected to the mounting frame (2) in a sliding manner and positioned above a laser engraving machine workbench (11), and a cylinder (4) arranged on the mounting frame (2) and used for driving the lifting frame (3) to move in a direction close to or far away from the laser engraving machine workbench (11);

be equipped with clamp plate (5), compression roller (6) and actuating mechanism (7) on crane (3), clamp plate (5) are located crane (3) and are close to one side of laser engraving machine workstation (11), actuating mechanism (7) are connected with compression roller (6), actuating mechanism (7) are used for driving compression roller (6) and do the removal that is close to or keeps away from clamp plate (5) direction on crane (3).

2. The laser engraving machine paper fixing device according to claim 1, wherein: a spongy cushion (51) is fixedly arranged on the bottom surface of the pressing plate (5).

3. The laser engraving machine paper fixing device according to claim 2, wherein: the lowest end of the compression roller (6) is higher than the bottom surface of the spongy cushion (51).

4. The laser engraving machine paper fixing device according to claim 1, wherein: the compression roller (6) is connected with the sliding block (61) in a rotating mode along the two axial ends of the compression roller, the sliding block (61) is connected with the lifting frame (3) in a sliding mode, the driving mechanism (7) is connected with the sliding block (61), and the driving mechanism (7) is used for driving the sliding block (61) to slide on the lifting frame (3).

5. The laser engraving machine paper fixing device according to claim 4, wherein: the driving mechanism (7) comprises a screw rod (71) rotatably connected to the lifting frame (3) and a driving motor (72) installed on the lifting frame (3), the screw rod (71) penetrates through the sliding block (61) and is in threaded connection with the sliding block (61), and the driving motor (72) is connected with the screw rod (71).

6. The laser engraving machine paper fixing device according to claim 5, wherein: the number of screw rods (71) is two, two screw rods (71) and two sliders (61) one-to-one correspondence, screw rods (71) and corresponding sliders (61) threaded connection, driving motor (72) is connected with one of screw rods (71), and is equipped with linkage assembly (73) between two screw rods (71), linkage assembly (73) are used for making two screw rods (71) synchronous syntropy rotate.

7. The laser engraving machine paper fixing device according to claim 6, wherein: the linkage assembly (73) comprises two synchronous pulleys (731) and a toothed belt (732) matched with the two synchronous pulleys (731), and the two synchronous pulleys (731) are fixedly connected to the two screws (71) respectively.

8. The laser engraving machine paper fixing device according to claim 7, wherein: the linkage assembly (73) further comprises a tension belt wheel (733), the tension belt wheel (733) is rotatably connected to the lifting frame (3), and the tension belt wheel (733) abuts against the toothed belt (732).