Printing device to prevent substrate slippage

Abstract

The present invention discloses a printing device for preventing substrate from slipping, which relates to the technical field of screen printing, and comprises an operating table and a guiding device. A guiding cavity is provided on the upper part of the operating table, and a guiding support component for guiding and flattening paper is detachably fixedly installed on the upper right side of the operating table. A driving device and a printing component are installed inside the guiding cavity, so that the printing component slides obliquely downward and contacts with paper under the drive of the driving device, and the paper is tightened and printed under the cooperation of the guiding support component. The present invention tightens and flattens the paper by the contact time between the parts of the printing component and the paper, and breaks contact with the paper when rising, so as to avoid the printing part of the printing component sliding relative to the paper during the lifting and lowering process, resulting in the widening of the ink, so as to prevent the paper from being dirty and affecting the clarity of the pattern, which may seriously lead to the deviation from the intended meaning of the pattern itself.

Description

Technical Field

[0001] The invention relates to the technical field of screen printing, and in particular to a printing device for preventing substrate from slipping. Background Art

[0002] Screen printing consists of five major elements: screen printing plate, scraper, ink, printing table and substrate. Printing is based on the basic principle that the mesh holes of the screen printing plate with images and texts can pass through the ink, while the mesh holes of the non-image and text parts cannot pass through the ink.

[0003] During the screen printing process, the substrate needs to be fully attached to the screen printing plate and maintain a stable positioning to ensure that the ink is printed in the preset area when the scraper moves.

[0004] For example, the Chinese patent document with application publication number 202311033642.7 discloses a low-temperature screen printing device: cold air is input into the interior of the support frame through the air supply component and introduced into the auxiliary pressure wheel, so that cold air enters multiple pairs of auxiliary pressure wheels and two pairs of power pressure wheels. When the paper is transported and straightened, the paper can be cooled and hardened to avoid the bending recovery of the paper after straightening, ensuring that the area to be printed on the paper is flatly attached to the middle of the support frame, which facilitates the full fit between the screen plate and the paper and ensures the printing quality.

[0005] However, as shown in the above-mentioned prior art, the screen printing plate is prone to sliding relative to the paper during the descending process, which can easily cause the printed material to be dirty, affect the clarity of the pattern, and seriously cause the pattern to deviate from the intended meaning.

[0006] Therefore, it is necessary to invent a printing device to prevent substrate slippage to solve the above problems. Summary of the invention

[0007] The object of the present invention is to provide a printing device that prevents substrate slippage, so as to solve the problem in the above-mentioned background technology that the screen printing plate is prone to slide relative to the paper during the descending process, which can easily cause the substrate to be dirty, affect the clarity of the pattern, and seriously cause the pattern to deviate from the intended meaning.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a printing device for preventing substrates from slipping, comprising an operating table and a guiding device, wherein a guide cavity is provided on the upper part of the operating table, a guide support assembly for guiding and flattening paper is detachably fixedly installed on the upper right part of the operating table, a driving device and a printing assembly are installed inside the guiding cavity, and a structure is formed in which the printing assembly slides obliquely downward under the drive of the driving device and contacts with the paper, and the paper is tightened for printing under the cooperation of the guiding support assembly;

[0009] The guiding device is adapted to be a structure that drives the printing assembly and the guide support assembly to operate synchronously. A blocking device for drying the paper is detachably fixedly installed at the lower right side of the operating table, and the blocking device extends upward to the paper position. The guiding support assembly is equipped with a blocking device, and the blocking device is adapted to be a structure that enables the drying device and the printing assembly to act on the paper at the same time.

[0010] A paper winding roller for winding paper is installed in the middle of the right side of the operating table.

[0011] Optionally, the guide support assembly includes a support plate, two of which are provided and respectively fixed on both sides of the operating table, a mounting groove is provided on the top of the support plate, a first rotating roller is rotatably connected between the two support plates, and two of the first rotating rollers are provided and staggered up and down, and a conveying device is rotatably connected between the two support plates.

[0012] Optionally, the conveying device includes a rotating arm, two of which are provided and are respectively hinged on one side adjacent to two support plates, a first coil spring is detachably fixedly installed at the hinge between the rotating arm and the support plate, and stores force when the rotating arm rotates, and a second rotating roller is rotatably installed between the two support plates.

[0013] Optionally, the driving device includes a driving motor, which is mounted on the inner top wall of the guide cavity, and the output end of the driving motor is fixedly mounted with the threaded rod, which is inclined and drives the printing assembly to move obliquely downward.

[0014] Optionally, the printing component includes a sliding receiving plate, two of which are provided and are sleeved on the outside of the threaded rod and extend to the outside of the guide cavity, an oriented frame is fixedly installed on the end of the sliding receiving plate away from the threaded rod, a receiving column is fixedly installed in the middle of the oriented frame, a rotatable sleeve limiting device is provided on the outside of the receiving column, a printing screen is provided at the center of the oriented frame, force storage components are fixedly installed at the four corners of the top of the printing screen, and the force storage component is fixedly connected to the oriented frame; a U-shaped downward pressure column is fixedly installed on the top of the printing screen, and the U-shaped downward pressure column is inserted into the interior of the mounting groove after being lowered.

[0015] Optionally, the limiting device includes a rotating sleeve, which can be rotatably sleeved on the outer side of the receiving column, the limiting plate is fixedly installed on the bottom of the rotating sleeve, and the limiting plate is in contact with the lower surface of the printing screen, and a second coil spring is detachably fixedly installed at the connection between the rotating sleeve and the receiving column.

[0016] Optionally, the force storage assembly includes a T-shaped mounting plate and a first compression spring, wherein the T-shaped mounting plate is fixed to the top of the directional frame and extends above the printing screen, and the two ends of the first compression spring are fixedly connected to the T-shaped mounting plate and the printing screen respectively.

[0017] Optionally, the guiding device includes a movable pulley and a belt, a plurality of movable pulleys are provided and are respectively installed on the outside of the guide cavity and the support plate, both ends of the belt are fixedly connected to the printing assembly, and a pulley is fixedly installed on the outside of the second rotating roller and is in friction contact with the belt.

[0018] Optionally, the drying device includes a hot air blower, a first air duct and a second air duct, the hot air blower is fixed on the front side of the operating table, the two ends of the first air duct are respectively connected to the hot air blower and the mounting groove, and the second air duct is fixed on the support plate and connected to the mounting groove.

[0019] Optionally, the sealing device includes a lifting sealing plate and a second compression spring. The lifting sealing plate can be slid up and down and installed inside the mounting groove, so that the lifting sealing plate disconnects the first air duct from the second air duct under the squeezing of the U-shaped lower pressure column, and rises after the hot air blower is started to connect the first air duct with the second air duct. The two ends of the second compression spring are respectively fixedly connected to the lifting sealing plate and the inner bottom wall of the mounting groove.

[0020] Technical effects and advantages of the present invention:

[0021] 1. The present invention tightens and flattens the paper by the time the parts of the printing assembly are in contact with the paper, and breaks contact with the paper when rising, so as to avoid the printing part of the printing assembly sliding relative to the paper during the lifting process, causing the ink to be widened, so as to prevent the paper from being dirty and affecting the clarity of the pattern, which may seriously deviate from the meaning of the pattern itself.

[0022] 2. The present invention cushions the descent of the printing screen by compressing the second compression spring, thereby preventing the printing screen from damaging the paper when it descends. At the same time, the printing screen will be lifted up first during drying to prevent the ink on the printing screen from sticking to the ink on the paper after drying, thereby preventing damage to the paper and preventing the printing screen from sliding when it rises, thereby preventing the paper from widening.

[0023] 3. The present invention holds up the printing screen by setting a limit plate, so that the printing screen is kept at a certain distance from the paper, and when it descends to the support plate, the limit plate will be squeezed and rotated, and gradually release the limit on the printing screen, so that the printing screen can contact the paper normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the guiding device of the present invention;

[0026] Figure 3 This is a schematic diagram of the interior of the guide cavity structure of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the blocking device of the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of the driving device of the present invention;

[0029] Figure 6 For the present invention Figure 1 A schematic diagram of the structure enlargement in the middle;

[0030] Figure 7 For the present invention Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0031] Figure 8 is a schematic diagram of the second coil spring structure of the present invention;

[0032] Fig. 9 It is a schematic diagram of the first coil spring structure of the present invention.

[0033] In the figure: 100, operating table;

[0034] 200, guide cavity;

[0035] 300, guide support assembly; 310, support plate; 320, mounting groove; 330, first rotating roller; 340, conveying device; 341, rotating arm; 342, first coil spring; 343, second rotating roller;

[0036] 400, driving device; 410, driving motor; 420, threaded rod;

[0037] 500, printing assembly; 510, sliding receiving plate; 520, directional frame; 530, receiving column; 540, limiting device; 541, rotating sleeve plate; 542, limiting plate; 543, second coil spring; 550, printing screen; 560, power storage assembly; 561, T-shaped mounting plate; 562, first compression spring; 570, U-shaped lower pressure column;

[0038] 600, guide device; 610, movable pulley; 620, belt; 630, pulley;

[0039] 700, drying device; 710, hot air blower; 720, first air duct; 730, second air duct;

[0040] 800, blocking device; 810, lifting sealing plate; 820, second compression spring;

[0041] 900. Paper take-up roller. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] The present invention provides Figure 1-9 The illustrated printing device for preventing substrate slippage comprises an operating table 100 and a guiding device 600. A guiding cavity 200 is provided on the upper portion of the operating table 100. A guiding support assembly 300 for guiding and flattening paper is detachably fixedly installed on the upper right portion of the operating table 100. A driving device 400 and a printing assembly 500 are installed inside the guiding cavity 200, so that the printing assembly 500 slides obliquely downward and contacts paper under the drive of the driving device 400, and the paper is pulled tight for printing under the cooperation of the guiding support assembly 300.

[0044] The guide device 600 is adapted to be a structure that drives the printing assembly 500 and the guide support assembly 300 to operate synchronously. A blocking device 800 for drying the paper is detachably fixedly installed at the lower right side of the operating table 100, and the blocking device 800 extends upward to the paper part. The blocking device 800 is installed on the guide support assembly 300, and the blocking device 800 is adapted to be a structure that enables the drying device 700 and the printing assembly 500 to act on the paper at the same time.

[0045] A paper winding roller 900 for winding paper is installed in the middle of the right side of the operating platform 100 .

[0046] The paper is stretched and flattened by the time when the printing assembly 500 parts are in contact with the paper, and the printing assembly 500 is out of contact with the paper during the rise, so as to prevent the printing part of the printing assembly 500 from sliding relative to the paper during the rise and fall process, causing the ink to be widened, so as to prevent the paper from being dirty and affecting the clarity of the pattern, which may seriously deviate from the meaning of the pattern itself;

[0047] The drying device 700 is provided to accelerate the drying of the ink, so that the pattern can be quickly formed and dried, and the paper is prevented from being wiped and blurred when it is rolled up again;

[0048] The paper reel 900 can be rotated to release the paper normally, so that the paper can be moved and printed normally.

[0049] The guide cavity 200 is provided to ensure that space is provided for the installation of the guide device 600 and the printing assembly 500 , and to limit the sliding of the printing assembly 500 , thereby preventing the printing assembly 500 from rotating while sliding.

[0050] In some embodiments of the present invention, reference Figure 4 and Figure 5 As shown, the guide support assembly 300 includes a support plate 310, two support plates 310 are provided and are respectively fixed on both sides of the operating table 100, a mounting groove 320 is opened on the top of the support plate 310, a first rotating roller 330 is rotatably connected between the two support plates 310, and two first rotating rollers 330 are provided and are staggered up and down, and a conveying device 340 is rotatably connected between the two support plates 310.

[0051] The support plate 310 is used to support the installation of the first rotating roller 330 and the conveying device 340, and ensure the normal use of the first rotating roller 330 and the conveying device 340;

[0052] The two first rotating rollers 330 are used to clamp and guide the paper, and the normal rotation of the first rotating rollers 330 can ensure the movement of the paper.

[0053] In some embodiments of the present invention, reference Figure 5 and Fig. 9 As shown, the conveying device 340 includes a rotating arm 341, two rotating arms 341 are provided, and are respectively hinged on the adjacent sides of the two support plates 310, and a first coil spring 342 is detachably fixedly installed at the hinge between the rotating arm 341 and the support plate 310, and stores force when the rotating arm 341 rotates, and a second rotating roller 343 is rotatably installed between the two support plates 310.

[0054] The swing of the rotating arm 341 enables the second rotating roller 343 to clamp the paper before printing, fix the paper, and tighten the paper when rotating downward, while reducing the friction of the guide device 600 when descending, so as to avoid the printing assembly 500 being driven continuously when descending, resulting in a long movement distance of the paper, and also reduce the influence of the paper thickness on the printing position;

[0055] The first coil spring 342 drives the rotating arm 341 to rotate upward after the squeezing force on the second rotating roller 343 disappears, and provides the second rotating roller 343 with sufficient clamping force for the paper when the second rotating roller 343 is squeezed.

[0056] In some embodiments of the present invention, reference Figure 7As shown, the driving device 400 includes a driving motor 410, which is mounted on the inner top wall of the guide cavity 200. The output end of the driving motor 410 is fixedly mounted with the threaded rod 420, which is tilted and drives the printing assembly 500 to move obliquely downward.

[0057] The drive motor 410 is configured to drive the threaded rod 420 to rotate, so that the threaded rod 420 can drive the printing assembly 500 to slide under the action of the thread.

[0058] In some embodiments of the present invention, reference Figure 2-8 As shown, the printing component 500 includes a sliding receiving plate 510, two of which are provided and are sleeved on the outer side of the threaded rod 420 and extend to the outer side of the guide cavity 200, an oriented frame 520 is fixedly installed on the end of the sliding receiving plate 510 away from the threaded rod 420, a receiving column 530 is fixedly installed in the middle of the oriented frame 520, a rotatable sleeve limiting device 540 is arranged on the outer side of the receiving column 530, a printing screen 550 is arranged at the center of the oriented frame 520, and a force storage component 560 is fixedly installed at the top four corners of the printing screen 550, and the force storage component 560 is fixedly connected to the oriented frame 520; a U-shaped downward pressure column 570 is fixedly installed on the top of the printing screen 550, and the U-shaped downward pressure column 570 is inserted into the interior of the mounting groove 320 after being lowered.

[0059] The sliding receiving plate 510 is matched with the threaded rod 420, and when the threaded rod 420 rotates, the thread drives the directional frame 520 to slide, so that the directional frame 520 slides down, squeezes the paper, and the directional frame 520 pushes the second rotating roller 343 down, so that the second rotating roller 343 rotates to be parallel to the corresponding height of the first rotating roller 330 below.

[0060] The receiving column 530 is provided to ensure the normal installation of the limiting device 540, and will not affect the rotation of the limiting device 540;

[0061] The printed pattern is fixed by placing the printing screen 550 in contact with the paper;

[0062] The U-shaped pressing column 570 is fixed to the printing screen 550 and pushes the blocking device 800 to slide downward when the printing screen 550 descends.

[0063] In some embodiments of the present invention, reference Figure 8As shown, the limiting device 540 includes a rotating sleeve 541, which can be rotatably sleeved on the outer side of the receiving column 530, and the limiting plate 542 is fixedly installed on the bottom of the rotating sleeve 541, and the limiting plate 542 contacts the lower surface of the printing screen 550, and the connection between the rotating sleeve 541 and the receiving column 530 is detachably fixedly installed with a second coil spring 543.

[0064] The printing screen 550 is lifted up by the setting of the limiting plate 542, and the lower surface of the printing screen 550 is higher than the lower surface of the directional frame 520, so that the printing screen 550 keeps a certain distance from the paper, and when it descends to the support plate 310, the limiting plate 542 will be squeezed and rotated, gradually releasing the limit on the printing screen 550, so that the printing screen 550 can descend normally, and the printing screen 550 can be in normal contact with the paper;

[0065] Among them, the second coil spring 543 is set to provide external force for the resetting of the rotating sleeve 541 and the limit plate 542, and at the same time, the limit plate 542 can have sufficient force to push the printing screen 550 up. At the same time, the limit plate 542 can be parallel to the oriented frame 520 after rotation, and will extend out of the side of the oriented frame 520.

[0066] In some embodiments of the present invention, reference Figure 2 As shown, the force storage assembly 560 includes a T-shaped mounting plate 561 and a first compression spring 562. The T-shaped mounting plate 561 is fixed on the top of the directional frame 520 and extends above the printing screen 550. The two ends of the first compression spring 562 are fixedly connected to the T-shaped mounting plate 561 and the printing screen 550 respectively.

[0067] The T-shaped mounting plate 561 is provided to ensure the fixation of the first compression spring 562 and to limit the height of the first compression spring 562, so that the printing screen 550 squeezes and stores force on the first compression spring 562 when it rises, and the elastic force of the first compression spring 562 is smaller than the stress of the second coil spring 543;

[0068] The elastic force of the first compression spring 562 drives the printing screen 550 to descend after the blocking force disappears, so that the printing screen 550 contacts the paper.

[0069] In some embodiments of the present invention, reference Figure 5 As shown, the guiding device 600 includes a movable pulley 610 and a belt 620. A plurality of movable pulleys 610 are provided and are respectively installed on the outside of the guide cavity 200 and the support plate 310. Both ends of the belt 620 are fixedly connected to the printing assembly 500. A pulley 630 is fixedly installed on the outside of the second rotating roller 343 and is in frictional contact with the belt 620.

[0070] The movable pulley 610 can reduce the friction of the belt 620 during sliding, thereby reducing the wear of the belt 620.

[0071] The coordinated arrangement of the belt 620 and the pulley 630 enables the sliding receiving plate 510 and the second rotating roller 343 to run synchronously, so that the sliding receiving plate 510 drives the second rotating roller 343 to rotate when sliding.

[0072] In some embodiments of the present invention, reference Figure 1 As shown, the drying device 700 includes a hot air blower 710, a first air duct 720 and a second air duct 730. The hot air blower 710 is fixed on the front side of the operating table 100, and the two ends of the first air duct 720 are respectively connected to the hot air blower 710 and the mounting groove 320. The second air duct 730 is fixed on the support plate 310 and is connected to the mounting groove 320.

[0073] The hot air blower 710 is provided to provide heated gas, so that the gas is ejected through the first air duct 720 and the second air duct 730 to dry the printed ink and fix the printed pattern;

[0074] The first air duct 720 and the second air duct 730 are provided to transport the dry gas to a designated location so that the pattern is dried.

[0075] In some embodiments of the present invention, reference Figure 6 As shown, the sealing device 800 includes a lifting sealing plate 810 and a second compression spring 820. The lifting sealing plate 810 can be slid up and down and installed inside the installation groove 320, so that the lifting sealing plate 810 disconnects the first air duct 720 from the second air duct 730 under the squeezing of the U-shaped lower pressure column 570, and rises after the hot air blower 710 is started to connect the first air duct 720 with the second air duct 730. The two ends of the second compression spring 820 are fixedly connected to the lifting sealing plate 810 and the inner bottom wall of the installation groove 320, respectively.

[0076] The cooperation of the lifting sealing plate 810 and the second compression spring 820 can buffer the descent of the printing screen 550, so as to prevent the printing screen 550 from descending too fast and causing damage to the paper. At the same time, the printing screen 550 will be lifted up first during drying to prevent the ink on the printing screen 550 from drying together with the ink on the paper. At the same time, the printing screen 550 can be separated from the paper to prevent the printing screen 550 from widening the paper when it rises.

[0077] Among them, the setting of the second compression spring 820 can reduce the descending speed of the printing screen 550 to prevent the printing screen 550 from crushing the paper. At the same time, the stress of the second compression spring 820 is less than the stress of the first compression spring 562. At the same time, the lifting sealing plate 810 is sealed with the inner wall of the installation groove 320. After the gas is rushed in, it will push the printing screen 550 to rise, so that the first air duct 720 is connected with the second air duct 730, ensuring the normal flow of drying gas for drying.

[0078] Working method of the present invention:

[0079] When in use, the driving motor 410 is started, so that the driving motor 410 drives the threaded rod 420 to rotate, and during the rotation, the sliding receiving plate 510 is driven to move under the action of the thread, and during the movement of the sliding receiving plate 510, the belt 620 is driven to move, so that the belt 620 drives the pulley 630 to rotate, and during the rotation of the pulley 630, the paper is driven to move through the second rotating roller 343 to adjust the printing position;

[0080] When the sliding receiving plate 510 moves, it also drives the directional frame 520 to move obliquely downward until it contacts the paper, and tightens the paper with the cooperation of the second rotating roller 343, and tightens the paper as the directional frame 520 continues to descend, and at the same time drives the U-shaped pressing column 570 to descend and insert into the interior of the installation groove 320, and squeezes the lifting sealing plate 810, so that the lifting sealing plate 810 descends between the first air duct 720 and the second air duct 730, and squeezes the second compression spring 820, so that the second compression spring 820 accumulates force;

[0081] As the directional frame 520 descends, the second rotating roller 343 drives the rotating arm 341 to rotate, so that the first coil spring 342 accumulates force, and the second rotating roller 343 descends to a height flush with the first rotating roller 330 below. At the same time, the distance between the pulley 630 and the movable pulley 610 decreases, so that the belt 620 cannot drive the pulley 630 to rotate through friction.

[0082] When the sliding receiving plate 510 is in the process of descending, the limiting plate 542 will contact the supporting plate 310, so that the limiting plate 542 drives the rotating sleeve plate 541 to rotate under the pressure of the supporting plate 310, so that the limiting plate 542 and the printing screen 550 are staggered, and at the same time, the second coil spring 543 is driven to store force. When the limiting plate 542 and the printing screen 550 are completely staggered, the printing screen 550 will descend under the pressure of the first compression spring 562, and at the same time, the second compression spring 820 is compressed by the U-shaped downward pressure column 570 and the lifting sealing plate 810, so as to reduce the descending speed of the printing screen 550, and then print the paper;

[0083] When printing is completed, the hot air blower 710 is started, so that the hot air blower 710 generates dry gas and enters the interior of the installation groove 320 through the first air duct 720, thereby increasing the pressure of the installation groove 320 and pushing the lifting sealing plate 810 to rise. When the lifting sealing plate 810 rises, it pushes the U-shaped lower pressure column 570 and the printing screen 550 to rise, and connects the first air duct 720 and the second air duct 730, so that the gas is sprayed out through the second air duct 730 to act on the paper for drying;

[0084] When drying is completed, the driving motor 410 is started, so that the driving motor 410 drives the threaded rod 420 to rotate in the opposite direction, and the threaded rod 420 drives the sliding receiving plate 510 to rise, so that the directional frame 520 rises, and the second rotating roller 343 and the pulley 630 are reset under the drive of the first coil spring 342, so that the pulley 630 and the belt 620 can have normal friction transmission, and at the same time, a ratchet is arranged between the pulley 630 and the second rotating roller 343. During the rising process of the sliding receiving plate 510, the pulley 630 and the second rotating roller 343 slip, and cannot overcome the friction between the second rotating roller 343 and the rotating arm 341, so that the second rotating roller 343 cannot rotate;

[0085] At the same time, when the directional frame 520 rises, the second coil spring 543 will drive the limit plate 542 to reset. The stress of the second coil spring 543 is greater than the stress of the first compression spring 562, so that the limit plate 542 drags the printing screen 550 to rise, causing the printing screen 550 to squeeze the first compression spring 562.

[0086] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0087] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A printing device for preventing substrate from slipping, characterized in that: The invention comprises an operating table (100) and a guiding device (600), wherein a guiding cavity (200) is provided on the upper part of the operating table (100), and a guiding support assembly (300) for guiding and flattening paper is detachably fixedly mounted on the upper right part of the operating table (100), and a driving device (400) and a printing assembly (500) are mounted inside the guiding cavity (200), so that the printing assembly (500) is driven by the driving device (400) to slide obliquely downward and contact the paper, and the paper is pulled tight for printing under the cooperation of the guiding support assembly (300); The guiding device (600) is adapted to be a structure for driving the printing assembly (500) and the guiding support assembly (300) to operate synchronously; a blocking device (800) for drying paper is detachably fixedly mounted on the lower right side of the operating table (100), and the blocking device (800) extends upward to the paper portion; the guiding support assembly (300) is equipped with the blocking device (800); the blocking device (800) is adapted to be a structure for enabling the drying device (700) and the printing assembly (500) to act on the paper simultaneously; A paper winding roller (900) for winding paper is installed in the middle of the right side of the operating table (100); The guide support assembly (300) comprises a support plate (310), two of the support plates (310) are provided and are respectively fixed on two sides of the operating table (100), a mounting groove (320) is provided on the top of the support plate (310), a first rotating roller (330) is rotatably connected between the two support plates (310), and two first rotating rollers (330) are provided and are staggered up and down, and a conveying device (340) is rotatably connected between the two support plates (310); The conveying device (340) comprises a rotating arm (341), wherein two rotating arms (341) are provided and are respectively hinged to adjacent sides of two support plates (310); a first coil spring (342) for storing force when the rotating arm (341) rotates is detachably fixedly installed at the hinge between the rotating arm (341) and the support plate (310); and a second rotating roller (343) is rotatably installed between the two support plates (310); The driving device (400) comprises a driving motor (410), the driving motor (410) being mounted on the inner top wall of the guide cavity (200), the output end of the driving motor (410) being detachably fixedly mounted with the threaded rod (420), the threaded rod (420) being arranged obliquely and driving the printing assembly (500) to move obliquely downward; The printing assembly (500) comprises a sliding receiving plate (510), two of which are sleeved on the outside of the threaded rod (420) and extend to the outside of the guide cavity (200), an orientation frame (520) is fixedly mounted on one end of the sliding receiving plate (510) away from the threaded rod (420), a receiving column (530) is fixedly mounted in the middle of the orientation frame (520), and a rotatable outer portion of the receiving column (530) is provided. The directional frame (520) is provided with a sleeved limiting device (540), a printing screen (550) is arranged at the center of the directional frame (520), and a force storage component (560) is fixedly installed at the four corners of the top of the printing screen (550), and the force storage component (560) is fixedly connected to the directional frame (520); a U-shaped downward pressure column (570) is fixedly installed on the top of the printing screen (550), and the U-shaped downward pressure column (570) is inserted into the interior of the installation groove (320) after being lowered; The drying device (700) comprises a hot air blower (710), a first air guide duct (720) and a second air guide duct (730); the hot air blower (710) is fixed to the front side of the operating table (100); two ends of the first air guide duct (720) are respectively connected to the hot air blower (710) and the mounting groove (320); and the second air guide duct (730) is fixed to the support plate (310) and is connected to the mounting groove (320); The blocking device (800) comprises a lifting sealing plate (810) and a second compression spring (820). The lifting sealing plate (810) can be slidably installed inside the installation groove (320) up and down, so that the lifting sealing plate (810) disconnects the first air duct (720) and the second air duct (730) under the pressure of the U-shaped downward pressure column (570), and rises after the hot air blower (710) is started to connect the first air duct (720) and the second air duct (730). The two ends of the second compression spring (820) are fixedly connected to the lifting sealing plate (810) and the inner bottom wall of the installation groove (320), respectively.

2. The printing device for preventing substrate slippage according to claim 1, characterized in that: The limiting device (540) comprises a rotating sleeve (541), the rotating sleeve (541) being rotatably sleeved on the outer side of the receiving column (530), the limiting plate (542) being fixedly mounted on the bottom of the rotating sleeve (541), and the limiting plate (542) being in contact with the lower surface of the printing screen (550), and a second coil spring (543) being detachably fixedly mounted at the connection between the rotating sleeve (541) and the receiving column (530).

3. The printing device for preventing substrate slippage according to claim 1, characterized in that: The force storage assembly (560) comprises a T-shaped mounting plate (561) and a first compression spring (562); the T-shaped mounting plate (561) is fixed to the top of the directional frame (520) and extends above the printing screen (550); and the two ends of the first compression spring (562) are respectively fixedly connected to the T-shaped mounting plate (561) and the printing screen (550).

4. The printing device for preventing substrate slippage according to claim 1, characterized in that: The guiding device (600) comprises a movable pulley (610) and a belt (620). A plurality of movable pulleys (610) are provided and are respectively mounted on the outside of the guide cavity (200) and the support plate (310). Both ends of the belt (620) are fixedly connected to the printing assembly (500). A pulley (630) is fixedly mounted on the outside of the second rotating roller (343) and is in frictional contact with the belt (620).

Images