Belt type printing machine

Abstract

The utility model discloses a belt type printing machine which comprises a machine frame, a roll material conveying assembly and a printing mechanism are arranged on the machine frame, the printing mechanism comprises an installation frame, a driving roller, a driven roller and a printing plate bearing crawler belt, the length of a printed product is not limited by the perimeter of a printing roller, a printing worker does not need to replace the printing roller frequently, and operation is simplified. A plurality of first annular grooves and second annular grooves are formed in the outer side wall of the driving roller and the outer side wall of the driven roller in the axial direction correspondingly, and a plurality of annular belts are arranged on the inner side face of the printing plate bearing crawler belt. The two ends of the annular belt are arranged in the corresponding first annular groove and the second annular groove correspondingly, and the annular belt is driven by the driving roller and the driven roller to rotate along the first annular groove and the second annular groove and drives a printing plate on the printing plate bearing crawler belt to rotate. The annular belt is matched with the first annular groove and the second annular groove to limit the printing plate bearing crawler belt to move relative to the driving roller and the driven roller, and the roll material printing quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, and more specifically, it relates to a belt printing machine. Background Art

[0002] A printing machine is a machine used for printing characters or images. Its working principle is as follows: First, the characters or images to be printed are made into printing plates and installed on the printing machine. Then, ink is applied to the areas with characters or images on the printing plate manually or by the printing machine, and then directly or indirectly transferred to paper or other printing substrates (such as textiles, metal plates, plastics, leather, wood boards, glass, and ceramics), thereby replicating the same printed matter as the printing plate. The length of the printed matter depends on the length of the printing plate.

[0003] In roll printing, generally a roller printing plate is used for printing, that is, the characters or images to be printed are engraved on the printing roller or a sheet-type printing plate is pasted on the printing roller. Therefore, the length of the printed matter in roll printing depends on the circumference of the printing roller. Often, due to different lengths of the printed matter, the printing roller needs to be frequently replaced, which brings operation trouble to printing workers, resulting in low production efficiency. At the same time, a large number of printing rollers of different specifications need to be equipped, causing waste of resources, and a large area is required to place the printing rollers. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a belt printing machine.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A belt printing machine includes a frame, and a roll material conveying assembly for conveying roll materials and a printing mechanism for printing roll materials are provided on the frame.

[0007] The printing mechanism includes a mounting frame, a driving roller, a driven roller, and a printing plate-carrying track belt. The driving roller and the driven roller are rotatably arranged on the mounting frame, and the printing plate-carrying track belt is sleeved on the driving roller and the driven roller.

[0008] A plurality of first annular grooves and second annular grooves are respectively arranged on the outer side walls of the driving roller and the driven roller along the axial direction, and the first annular grooves and the second annular grooves are arranged in one-to-one correspondence.

[0009] A printing plate is fixed on the outer side surface of the printing plate-carrying track belt, and a plurality of annular belts are arranged on the inner side surface thereof.

[0010] Both ends of the annular belt are respectively placed in the corresponding first annular groove and second annular groove, and rotate along the first annular groove and the second annular groove under the drive of the driving roller and the driven roller, and drive the printing plate on the printing plate-carrying track belt to rotate.

[0011] The present utility model is further provided that: the roller seat of the driven roller is slidably arranged up and down on the mounting frame;

[0012] A stretching assembly is arranged between the driving roller and the driven roller. The stretching assembly includes a stretching screw rod rotatably arranged on the mounting frame and a stretching bracket. The stretching bracket includes a support rod and a top rod. The lower end of the support rod is fixed on the mounting frame, and its upper end is hinged to the top rod;

[0013] The lower end of the top rod is in threaded cooperation with the stretching screw rod, and its upper end abuts against the roller seat;

[0014] The stretching screw rod drives the lower end of the top rod to move towards the support rod, so that the upper end of the top rod jacks up the roller seat.

[0015] The present utility model is further provided that: reverse threads are arranged at both ends of the adjusting screw rod. Stretching brackets are arranged at both ends of the adjusting screw rod. Two of the stretching brackets are arranged oppositely, so that the adjusting screw rod simultaneously drives the lower ends of the top rods to move towards the corresponding support rods, and the upper ends of the two top rods respectively jack up the two ends of the roller seat.

[0016] The present utility model is further provided that: a pressure roller is rotatably arranged below the driving roller through a support arm. A pressure cylinder for pressing the pressure roller towards the driving roller is arranged on the support arm, so that the pressure roller presses the coil material towards the driving roller.

[0017] The present utility model is further provided that: an ink supply assembly for supplying ink to the printing mechanism is movably arranged on the mounting frame. The ink supply assembly is arranged in front of the driving roller;

[0018] The ink supply assembly includes a bracket slidably arranged on the mounting frame, an ink cartridge mounted on the bracket, and an ink guide roller rotatably arranged on the bracket. The ink guide roller is placed in the ink cartridge;

[0019] A pushing cylinder on the mounting frame pushes the bracket to slide, so that the ink cartridge on the bracket slides out from the opening of the mounting frame.

[0020] The present utility model is further provided that: connection sleeves for mounting the ink cartridge are arranged at both ends of the bracket. A connecting rod adapted to the connection sleeve is arranged at the lower end of the ink cartridge. The connecting rod is inserted into the connection sleeve. Tooth portions are arranged in the vertical direction of the connecting rod;

[0021] A linkage assembly for driving the ink cartridge to move up and down is arranged on the bracket. The linkage assembly includes a linkage rod rotatably arranged on the bracket, two linkage gears connected to the linkage rod and meshing with the tooth portions of the connecting rod. A rolling gear is connected to the end of the linkage rod. The rolling gear meshes with a rolling rack on the mounting frame;

[0022] The driving cylinder drives the bracket to slide forward. The rolling gear rolls along the rolling rack and drives the linkage rod to rotate. The linkage gear drives the connecting rod to drive the ink cartridge to move downward.

[0023] The present utility model is further provided that: the frame includes two skeletons arranged oppositely left and right, and the skeletons are connected by left and right cross bars;

[0024] Each skeleton includes four upright columns arranged oppositely, and the upright columns are connected by two front and rear cross bars.

[0025] The present utility model is further provided that: the coil material conveying assembly includes a plurality of material passing rollers, and the material passing rollers are rotatably arranged between the two skeletons.

[0026] The present utility model is further provided that: the mounting frame is slidably arranged left and right on the load-bearing plate of the frame, and an adjusting assembly is arranged on the load-bearing plate. The adjusting assembly includes an adjusting handwheel and an adjusting screw rod connected to the adjusting handwheel;

[0027] A screw sleeve threadedly matched with the adjusting screw rod is arranged at the bottom of the mounting frame;

[0028] The adjusting handwheel drives the adjusting screw rod to rotate, driving the screw sleeve to drive the mounting frame to move left and right.

[0029] The present utility model is further provided that: the printing plate is fixed to the surface of the printing plate bearing track by pasting.

[0030] The beneficial effect of the present utility model: the printing plate of the belt-type printing machine is fixed on the printing plate bearing track, and the printing plate bearing track is driven by the driving roller and the driven roller to print the coil material; the length of the printed matter is not limited by the circumference of the printing roller. When different printed matters need to be printed, the printer only needs to replace the printing plate on the printing plate bearing track, which simplifies the replacement operation. At the same time, there is no need to equip different printing rollers, reducing the cost of printing equipment and the occupied space of the printing plate equipment;

[0031] On the outer sidewalls of the driving roller and the driven roller, a number of first annular grooves and second annular grooves are respectively provided along the axial direction, and the first annular grooves and the second annular grooves are arranged in one-to-one correspondence; a printing plate is fixed on the outer side surface of the printing plate carrying track belt, and a number of annular belts are provided on its inner side surface; both ends of the annular belt are respectively placed in the corresponding first annular groove and second annular groove, and rotate along the first annular groove and the second annular groove under the drive of the driving roller and the driven roller, and drive the printing plate on the printing plate carrying track belt to rotate; through the cooperation of the annular belt with the first annular groove and the second annular groove on the driving roller and the driven roller, the relative left and right movement of the printing plate carrying track belt with respect to the driving roller and the driven roller is restricted, avoiding the situation that the printed matter is offset on the web, and at the same time increasing the friction between the printing plate carrying track belt and the driving roller and the driven roller, avoiding slipping; ensuring the printing quality of the web. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic structural view of a belt printing machine according to the present invention

[0033] Figure 2 is a schematic structural view of the machine frame of a belt printing machine according to the present invention;

[0034] Figure 3 is a schematic structural view of the printing mechanism of a belt printing machine according to the present invention Figure 1 ;

[0035] Figure 4 is a schematic structural view of the printing mechanism of a belt printing machine according to the present invention Figure 2 ;

[0036] Figure 5 is a schematic structural view of the driving structure of the printing plate carrying track belt of a belt printing machine according to the present invention;

[0037] Figure 6 is a schematic structural view of the stretching structure of the printing plate carrying track belt of a belt printing machine according to the present invention;

[0038] Figure 7 is a schematic structural view of the printing plate carrying track belt of a belt printing machine according to the present invention;

[0039] Figure 8 is a schematic structural view of the ink supply assembly of a belt printing machine according to the present invention Figure 1 ;

[0040] Figure 9 is a schematic structural view of the ink supply assembly of a belt printing machine according to the present invention Figure 2 ;

[0041] Figure 10 is a mating diagram of the ink cartridge and the linkage assembly of a belt printing machine according to the present invention;

[0042] Figure 11 It is a matching diagram of the printing mechanism and the adjustment component of a belt printing machine of the present utility model;

[0043] Explanation of reference numerals: 1, frame; 11, skeleton; 111, column; 112, front and rear crossbars; 12, left and right crossbars; 13, load-bearing plate; 2, coil material conveying component; 21, material-passing roller; 3, printing mechanism; 31, mounting frame; 311, rolling rack; 32, driving roller; 321, first annular groove; 33, driven roller; 331, second annular groove; 332, roller seat; 34, printing plate bearing track; 341, printing plate; 342, annular belt; 35, stretching component; 351, stretching screw; 352, stretching bracket; 3521, support rod; 3522, ejector rod; 36, pressure roller; 361, pressure cylinder; 37, ink supply component; 371, bracket; 3711, connecting sleeve; 372, ink cartridge; 3721, connecting rod; 3722, tooth part; 373, ink guide roller; 374, scraper; 38, linkage component; 381, linkage rod; 382, linkage gear; 383, rolling gear; 39, pushing cylinder; 4, adjustment component; 41, adjustment handwheel; 42, adjustment screw. Detailed implementation manners

[0044] Refer to the attached Figures 1 to 11 The following embodiments of a belt printing machine of the utility model will be further described in detail.

[0045] A belt printing machine includes a frame 1, and a coil material conveying component 2 for conveying a coil material and a printing mechanism 3 for printing the coil material are arranged on the frame 1; the printing mechanism 3 includes a mounting frame 31, a driving roller 32 and a driven roller 33 and a printing plate bearing track 34, the driving roller 32 and the driven roller 33 are rotatably arranged on the mounting frame 31, the printing plate bearing track 34 is sleeved on the driving roller 32 and the driven roller 33, and the driving roller 32 is driven by a driving motor to rotate;

[0046] The printing plate 341 of the belt printing machine is fixed on the printing plate bearing track 34, and the printing plate bearing track 34 drives the coil material to be printed through the driving roller 32 and the driven roller 33; the length of the printed matter is not limited by the circumference of the printing roller. When different printed matters need to be printed, the printer only needs to replace the printing plate 341 on the printing plate bearing track 34, which simplifies the replacement operation. At the same time, there is no need to be equipped with different printing rollers, reducing the cost of printing equipment and the occupied space of printing equipment;

[0047] A plurality of first annular grooves 321 and second annular grooves 331 are respectively arranged on the outer side walls of the driving roller 32 and the driven roller 33 along the axial direction, and the first annular grooves 321 and the second annular grooves 331 are arranged in one-to-one correspondence;

[0048] The outer side of the plate carrier track 34 is fixed with a plate 341 by pasting, and several annular belts 342 are arranged on its inner side; both ends of the annular belt 342 are respectively placed in the corresponding first annular groove 321 and second annular groove 331, and driven by the driving roller 32 and the driven roller 33, rotate along the first annular groove 321 and the second annular groove 331, and drive the plate 341 on the plate carrier track 34 to rotate;

[0049] The annular belt 342 is matched with the first annular groove 321 and the second annular groove 331 on the driving roller 32 and the driven roller 33 to limit the left - right movement of the plate carrier track 34 relative to the driving roller 32 and the driven roller 33, and at the same time increase the friction between the plate carrier track 34 and the driving roller 32 and the driven roller 33, avoiding slipping; ensuring the quality of coil printing.

[0050] Among them, the roller seat 332 of the driven roller 33 is slidably arranged up and down on the mounting frame 31, a guide rail is arranged on the mounting frame 31, and the roller seat 332 is arranged on the guide rail through a slider;

[0051] A stretching assembly 35 is arranged between the driving roller 32 and the driven roller 33. The stretching assembly 35 includes a stretching screw 351 and a stretching bracket 352 rotatably arranged on the mounting frame 31. The stretching bracket 352 includes a support rod 3521 and a top rod 3522. The lower end of the support rod 3521 is fixed on the mounting frame 31, and its upper end is hinged to the top rod 3522; the lower end of the top rod 3522 is in threaded cooperation with the stretching screw 351, and its upper end abuts against the roller seat 332;

[0052] When the distance between the driven roller 33 and the driving roller 32 is reduced, resulting in the plate carrier track 34 being slack and affecting the printing effect, by turning the screw at the end of the stretching screw 351, the stretching screw 351 drives the lower end of the top rod 3522 to move towards the support rod 3521, so that the upper end of the top rod 3522 pushes the roller seat 332 upwards; making the plate carrier track 34 return to a taut state.

[0053] In order to better support the driven roller 33, reverse threads are arranged at both ends of the adjusting screw 42, and stretching brackets 352 are arranged at both ends of the adjusting screw 42. Two of the stretching brackets 352 are arranged oppositely, so that the adjusting screw 42 drives the lower ends of the top rods 3522 to move towards the corresponding support rods 3521 at the same time, and the upper ends of the two top rods 3522 respectively push the two ends of the roller seat 332 upwards, making the plate carrier track 34 in a taut state.

[0054] Below the active roller 32, a pressure roller 36 is rotatably arranged through a support arm. A pressure cylinder 361 for pressing the pressure roller 36 towards the active roller 32 is arranged on the support arm, so that the pressure roller 36 presses the coil material towards the active roller 32, enabling the coil material to closely adhere to the printing plate bearing track 34, thereby enabling the printing plate 341 to better print on the coil material and ensuring the printing effect. An adjusting handwheel 41 is provided on the pressure cylinder 361 and is adjusted through the adjusting handwheel 41 to solve the problem of insufficient stroke of the pressure cylinder 361.

[0055] An ink supply assembly 37 for supplying ink to the printing mechanism 3 is movably arranged on the mounting frame 31, and the ink supply assembly 37 is arranged in front of the active roller 32. The ink supply assembly 37 includes a bracket 371 slidably arranged on the mounting frame 31, an ink cartridge 372 mounted on the bracket 371, and an ink guide roller 373 rotatably arranged on the bracket 371. The ink guide roller 373 is placed in the ink cartridge 372. A doctor blade 374 is arranged in front of the ink guide roller 373, and regulators are arranged at both ends of the doctor blade 374 for adjusting the gap between the doctor blade 374 and the ink guide roller 373 to control the ink supply amount.

[0056] The telescopic rod of the pushing cylinder 39 on the mounting frame 31 is connected to the rear of the bracket 371 to push the bracket 371 to slide, so that the ink cartridge 372 on the bracket 371 slides out from the opening of the mounting frame 31, facilitating the replacement and cleaning of the ink cartridge 372. A handwheel is provided on the pushing cylinder 39, and the bracket 371 is pushed forward by rotating the handwheel for compensating for the insufficient stroke of the pushing cylinder 39.

[0057] Connection sleeves 3711 for mounting the ink cartridge 372 are arranged at both ends of the bracket 371. A connecting rod 3721 adapted to the connection sleeve 3711 is arranged at the lower end of the ink cartridge 372. The connecting rod 3721 is inserted into the connection sleeve 3711, and a tooth portion 3722 is arranged in the vertical direction of the connecting rod 3721.

[0058] A linkage assembly 38 for driving the ink cartridge 372 to move up and down is arranged on the bracket 371. The linkage assembly 38 includes a linkage rod 381 rotatably arranged on the bracket 371, two linkage gears 382 connected to the linkage rod 381 and meshing with the tooth portion 3722 of the connecting rod 3721, and a rolling gear 383 connected to the end of the linkage rod 381. The rolling gear 383 meshes with a rolling rack 311 on the mounting frame 31.

[0059] The driving cylinder 39 drives the bracket 371 to slide forward. The rolling gear 383 rolls along the rolling rack 311 and drives the linkage rod 381 to rotate. The linkage gear 382 drives the connecting rod 3721 to drive the ink cartridge 372 to move downward. That is, while the driving cylinder 39 pushes the bracket 371 forward, the ink cartridge 372 will move downward along with the linkage rod 381 under the drive of the linkage gear 382, so that the ink cartridge 372 is separated from the scraper 374 and the ink guide roller 373, facilitating the cleaning operation of the ink cartridge 372.

[0060] After the cleaning of the ink cartridge 372 is completed, the driving cylinder 39 pulls the bracket 371 to slide backward. At the same time, the linkage gear 382 drives the linkage rod 381 to move upward, lifting the ink cartridge 372. At the same time, the linkage gear 382 cooperates with the tooth portion 3722 of the linkage rod 381 to lock the linkage rod 381, fixing the ink cartridge 372 on the bracket 371.

[0061] The frame 1 includes two skeletons 11 arranged oppositely on the left and right. The skeletons 11 are connected by left and right crossbars 12. The skeleton 11 includes four oppositely arranged columns 111, and the columns 111 are connected by two front and rear crossbars 112. That is, the frame 1 is assembled in a modular combination manner, facilitating customers to assemble by themselves.

[0062] The coil material conveying assembly 2 includes a number of material passing rollers 21, and the material passing rollers 21 are rotatably arranged between the two skeletons 11.

[0063] To facilitate the adjustment of the relative position between the printing plate 341 and the coil material on the left and right, the mounting frame 31 is slidably arranged left and right on the load-bearing plate 13 of the frame 1. The load-bearing plate 13 is provided with an adjustment assembly 4. The adjustment assembly 4 includes an adjustment handwheel 41 and an adjustment screw rod 42 connected to the adjustment handwheel 41. A screw sleeve threadedly engaged with the adjustment screw rod 42 is provided at the bottom of the mounting frame 31.

[0064] The adjustment handwheel 41 drives the adjustment screw rod 42 to rotate, driving the screw sleeve to drive the mounting frame 31 to move left and right. Thereby driving the printing plate 341 on the printing plate carrying track 34 to move left and right, aligning the printing plate 341 with the coil material to ensure the printing quality.

[0065] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A belt printer, comprising a frame, characterized in that: A coil material conveying assembly for conveying coil materials and a printing mechanism for printing on the coil materials are provided on the frame; The printing mechanism includes a mounting frame, a driving roller, a driven roller, and a printing plate carrying track. The driving roller and the driven roller are rotatably arranged on the mounting frame, and the printing plate carrying track is sleeved on the driving roller and the driven roller; A plurality of first annular grooves and second annular grooves are respectively arranged on the outer side walls of the driving roller and the driven roller along the axial direction, and the first annular grooves and the second annular grooves are arranged in one-to-one correspondence; A printing plate is fixed on the outer side surface of the printing plate carrying track, and a plurality of annular belts are arranged on the inner side surface thereof; Both ends of the annular belt are respectively placed in the corresponding first annular groove and second annular groove, and rotate along the first annular groove and the second annular groove driven by the driving roller and the driven roller, and drive the printing plate on the printing plate carrying track to rotate.

2. The belt printer according to claim 1, characterized in that: The roller seat of the driven roller is slidably arranged up and down on the mounting frame; A stretching assembly is arranged between the driving roller and the driven roller. The stretching assembly includes a stretching screw rod and a stretching bracket rotatably arranged on the mounting frame. The stretching bracket includes a support rod and a top rod. The lower end of the support rod is fixed on the mounting frame, and the upper end thereof is hinged to the top rod; The lower end of the top rod is in threaded cooperation with the stretching screw rod, and the upper end thereof abuts against the roller seat; The stretching screw rod drives the lower end of the top rod to move towards the support rod, so that the upper end of the top rod supports the roller seat upward.

3. The belt printing machine according to claim 2, characterized in that: Reverse threads are arranged at both ends of the stretching screw rod, and stretching brackets are arranged at both ends of the stretching screw rod. Two of the stretching brackets are arranged oppositely, so that the stretching screw rod simultaneously drives the lower ends of the top rods to move towards the corresponding support rods, and the upper ends of the two top rods respectively support the two ends of the roller seat upward.

4. The belt printing machine according to claim 3, characterized in that: A pressure roller is rotatably arranged below the driving roller through a support arm. A pressure cylinder for pressing the pressure roller towards the driving roller is arranged on the support arm, so that the pressure roller presses the coil material towards the driving roller.

5. A belt printing machine according to claim 1 or 2 or 3 or 4, characterized in that: An ink supply assembly for supplying ink to the printing mechanism is movably arranged on the mounting frame, and the ink supply assembly is arranged in front of the driving roller; The ink supply assembly includes a bracket slidably arranged on the mounting frame, an ink cartridge mounted on the bracket, and an ink guide roller rotatably arranged on the bracket. The ink guide roller is placed in the ink cartridge; A pushing cylinder on the mounting frame pushes the bracket to slide, so that the ink cartridge on the bracket slides out from the opening of the mounting frame.

6. The belt printer according to claim 5, characterized in that: Connection sleeves for mounting the ink cartridge are arranged at both ends of the bracket. A connecting rod adapted to the connection sleeve is arranged at the lower end of the ink cartridge. The connecting rod is inserted into the connection sleeve, and a tooth portion is arranged in the vertical direction of the connecting rod; A linkage assembly for driving the ink cartridge to move up and down is arranged on the bracket. The linkage assembly includes a linkage rod rotatably arranged on the bracket, two linkage gears connected to the linkage rod and meshing with the tooth portion of the connecting rod, and a rolling gear connected to the end of the linkage rod. The rolling gear meshes with a rolling rack on the mounting frame; The pushing cylinder drives the bracket to slide forward. The rolling gear rolls along the rolling rack and drives the linkage rod to rotate. The linkage gear drives the connecting rod to drive the ink cartridge to move downward.

7. A belt printing machine according to claim 1 or 2 or 3 or 4, characterized in that: The frame includes two skeletons arranged oppositely left and right, and the skeletons are connected by left and right cross bars; The skeleton includes four oppositely arranged columns, and the columns are connected by two front and rear crossbars.

8. A belt printing machine according to claim 7, characterized in that: The coil conveying assembly includes a number of material passing rollers, and the material passing rollers are rotatably arranged between the two skeletons.

9. A belt printing machine according to claim 1 or 2 or 3 or 4, characterized in that: The mounting frame is slidably arranged left and right on the load-bearing plate of the frame, and an adjusting assembly is arranged on the load-bearing plate. The adjusting assembly includes an adjusting handwheel and an extension screw rod connected to the adjusting handwheel; A screw sleeve that is threadedly engaged with the extension screw rod is provided at the bottom of the mounting frame; The adjusting handwheel drives the extension screw rod to rotate, driving the screw sleeve to drive the mounting frame to move left and right.

10. A belt printing machine according to claim 1 or 2 or 3 or 4, characterized in that: The surface of the plate-carrying track belt fixes the plate by means of pasting.

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