Inkjet printer

Abstract

The utility model discloses an ink-jet printer, and relates to the technical field of ink-jet printing, the ink-jet printer comprises a printing platform, a printing head and a first sensing module, the printing platform is provided with a material carrying surface, and the material carrying surface is provided with an avoiding hole; the printing head is movably arranged above the material carrying surface; the first sensing module is arranged below the printing platform and faces the avoiding hole, and the first sensing module is used for detecting the material carrying state of the material carrying face. According to the technical scheme, it can be ensured that the printing material is placed in place.

Description

TECHNICAL FIELD

[0001] The utility model relates to inkjet printing technical field, especially relate to a kind of inkjet printer. BACKGROUND

[0002] Inkjet printer is the equipment that ink is jetted on printing material to form image or character, can realize the printing job of higher definition, is widely used in multiple industries.

[0003] When inkjet printing is carried out, printing material needs to be accurately placed in printing position, if printing material placement position is not accurate, it will lead to that printing pattern on printing material is not complete or is off-set, influence printing effect. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide an inkjet printer, to ensure that printing material is settled in place.

[0005] To achieve the above-mentioned purpose, the inkjet printer provided by the utility model comprises:

[0006] Printing platform, the printing platform has material loading surface, the material loading surface is provided with avoiding hole;

[0007] Print head, the print head is movably arranged above the material loading surface;And

[0008] First sensing module, the first sensing module is arranged below the printing platform, and is correspondingly arranged with the avoiding hole, and the first sensing module is used for detecting the material loading state of the material loading surface.

[0009] In an embodiment, the first sensing module includes photoelectric sensor.

[0010] In an embodiment, the inkjet printer further includes material pressing structure, the material pressing structure is located at the edge region of the printing platform, and is arranged above the material loading surface, and the material pressing space is formed between the material pressing structure and the material loading surface.

[0011] In an embodiment, at least part of the avoiding hole is arranged in the region opposite to the material pressing structure of the material loading surface, and the first sensing module is arranged towards the material pressing space.

[0012] In an embodiment, the material pressing structure includes two material pressing pieces arranged side by side above the material loading surface, and the region between the two material pressing pieces is printing region.

[0013] In an embodiment, at least one of the material pressing pieces is movably arranged on the printing platform, to adjust the distance between the two material pressing pieces.

[0014] In an embodiment, the inkjet printer further comprises a feeding module, the feeding module comprising a driving mechanism and a driving roller, the driving roller being arranged on the feeding side of the printing platform, an axis of the driving roller being perpendicular to the feeding direction, the driving mechanism being in driving connection with the driving roller for driving the driving roller to rotate.

[0015] In an embodiment, the inkjet printer further comprises a second sensing module, the second sensing module being arranged on the feeding side of the printing platform for detecting the feeding state.

[0016] In an embodiment, the inkjet printer further comprises a pressure roller module, the pressure roller module comprising a pressure roller arranged above the feeding module, the pressure roller being rotatably arranged, a feeding channel being formed between the feeding module and the pressure roller.

[0017] In an embodiment, the inkjet printer further comprises a guide structure arranged on the feeding side of the feeding module, the guide structure being provided with a guide surface and a feeding channel, at least a part of the guide surface being gradually changed along a direction close to the feeding module, the feeding channel being arranged at an end of the guide surface close to the feeding module.

[0018] In an embodiment, the inkjet printer further comprises a limiting member, the limiting member being arranged on the feeding side of the printing platform and having two limiting surfaces oppositely arranged along an axial direction of the driving roller for limiting the direction of the printing material.

[0019] In an embodiment, the printing platform is provided with a chamber, the loading surface is provided with a through hole communicating with the chamber, and the inkjet printer further comprises a negative pressure module, the negative pressure module being in communication with the chamber for forming negative pressure in the chamber.

[0020] The technical scheme of the utility model discloses, through setting first sensing module on printing platform, whether the printing material is accurately placed in the preset printing position of the loading surface is detected through first sensing module, so as to judge the loading state, so that the printing material can be accurately placed in position, the problem that the printing pattern on the printing material is incomplete or deviated is avoided, and the printing effect is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to the structure shown in the drawings without creative labor.

[0022] Figure 1The utility model provides a structure diagram of one embodiment of inkjet printer provided by the utility model,

[0023] Figure 2 For Figure 1 The structure diagram of inkjet printer removal part frame,

[0024] Figure 3 For Figure 2 The enlarged view of A,

[0025] Figure 4 The structure diagram of inkjet printer removal part frame and print head provided by the utility model,

[0026] Figure 5 For Figure 4 The structure diagram of removal rack,

[0027] Figure 6 For Figure 5 The sectional view of first sensing module position,

[0028] Figure 7 For Figure 5 The sectional view of second sensing module position.

[0029] Explanation of figure mark number:

[0030] 100, inkjet printer, 1, print platform, 11, load surface, 12, avoid hole, 13, chamber, 131, first cavity wall, 132, second cavity wall, 14, through hole, 15, chute, 2, print head, 3, first sensing module, 4, feeding module, 41, driving roller, 42, drive mechanism, 421, driving piece, 422, transmission structure, 43, compression wheel module, 431, compression wheel, 5, second sensing module, 6, material guide structure, 61, material guide channel, 62, material guide surface, 63, limiting piece, 631, limiting surface, 7, negative pressure module, 71, negative pressure fan, 8, translation assembly, 81, slide rail, 82, drive structure, 9, frame, 91, rack, 92, discharge bracket, 10, compression structure, 101, compression piece, 102, sliding block, 103, compression space, 200, printing material.

[0031] The utility model realizes the purpose, functional characteristics and advantages, and will be further explained by combining with the embodiment and referring to the drawings. Specific implementation

[0032] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0033] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications will also change accordingly.

[0034] In addition, if the embodiments of the present application involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection required by the present application.

[0035] An inkjet printer is a device that sprays ink on a printing material to form an image or text, and can achieve high-definition printing, and is widely used in many industries.

[0036] When inkjet printing is performed, the printing material needs to be accurately placed at the printing position, and if the placement position of the printing material is not accurate, the printed pattern on the printing material will be incomplete or offset, affecting the printing effect.

[0037] Based on the above problems, the present application provides an inkjet printer 100.

[0038] In combination with reference to Figure 1 to Figure 3 and Figure 6In an embodiment of the present application, the inkjet printer 100 comprises a printing platform 1, a print head 2 and a first sensing module 3, the printing platform 1 has a loading surface 11, the loading surface 11 is provided with a clearance hole 12; the print head 2 is movably arranged above the loading surface 11; the first sensing module 3 is arranged below the printing platform 1 and corresponds to the clearance hole 12, and the first sensing module 3 is used for detecting the loading state of the loading surface 11.

[0039] The printing platform 1 is a loading mechanism for loading the printing material 200 in the inkjet printer 100, and the printing platform 1 is provided with the loading surface 11, and the printing material 200 can be placed on the loading surface 11. The print head 2 is provided with an inkjet module, and the inkjet nozzle of the inkjet module is arranged towards the loading surface 11. Optionally, the number of inkjet modules arranged in the print head 2 can be one, two or more than two, but is not limited to. Optionally, an ink supply module such as an ink cartridge can be arranged in the print head 2, so that the print head 2 itself stores ink. In addition, the ink supply module can also be arranged separately from the print head 2, and a conduit or the like is used to connect the ink supply module and the print head 2, the ink supply module supplies ink to the print head 2 through the conduit, and the ink is sprayed from the inkjet nozzle of the print head 2 to form a printing pattern on the printing material 200.

[0040] The inkjet printer 100 further comprises a translation assembly 8 for driving the print head 2 to move, the translation assembly 8 can be arranged to drive the print head 2 to move in one direction, at this time the translation assembly 8 can comprise a slide rail 81 extending in the translation direction of the print head 2 and a driving structure 82 for driving the print head 2 to slide on the slide rail 81, the print head 2 is slidably arranged on the slide rail 81 and connected with the driving structure 82, and the driving structure 82 can be arranged as a motor-screw mechanism, a synchronous belt mechanism or the like, but is not limited to. The translation assembly 8 can also be arranged to drive the print head 2 to move in different directions, for example, the translation assembly 8 comprises a first slide rail and a second slide rail arranged intersectingly, the second slide rail is slidably arranged on the first slide rail, and the print head 2 is slidably arranged on the second slide rail, the translation assembly 8 is provided with a first driving structure 82 for driving the second slide rail to slide along the first slide rail, and a second driving structure 82 for driving the print head 2 to slide along the second slide rail.

[0041] In the embodiment, the first sensing module 3 is arranged in the inkjet printer 100, and the avoiding hole 12 is arranged on the loading surface 11, so that the first sensing module 3 can detect the loading state of the loading surface 11 through the avoiding hole 12. The loading state of the loading surface 11 includes whether the printing material 200 is loaded on the loading surface 11, whether the printing material 200 is placed in place, or whether the printing material 200 is moved to the preset position. Specifically, when the printing material 200 covers the loading surface 11 and is located at the preset printing position, the printing material 200 covers the avoiding hole 12, and at this time, the first sensing module 3 can detect that the printing material 200 is loaded on the loading surface 11 and determine that the printing material 200 is located at the preset printing position. Then, the inkjet printer 100 controls the print head 2 to perform inkjet printing on the printing material 200, so that the problem of incomplete or offset printing pattern on the printing material 200 does not occur, and the printing effect is ensured. Optionally, the first sensing module 3 can be a reflective photoelectric sensor, a reflection type photoelectric sensor, a proximity switch, an ultrasonic sensor, or the like.

[0042] In the embodiment, at least part of the first sensing module 3 is arranged below the loading surface 11 of the printing platform 1. For example, when the reflective photoelectric sensor is arranged as the first sensing module 3, the reflective photoelectric sensor can be installed on one side, and does not need to protrude from the loading surface 11 to detect whether the printing material 200 is present in the area where the avoiding hole 12 is located, so as to determine the loading state of the loading surface 11.

[0043] The first sensing module 3 can also be partially arranged below the loading surface 11. For example, when the reflection type photoelectric sensor is arranged as the first sensing module 3, the reflection type photoelectric sensor includes an emitting part and a receiving part, one of the emitting part and the receiving part is arranged below the loading surface 11, and the other of the emitting part and the receiving part is arranged above the loading surface 11 and faces the avoiding hole 12. Alternatively, when the proximity switch is arranged as the first sensing module 3, the trigger part of the proximity switch at least partially protrudes from the avoiding hole to protrude from the loading surface 11, so that the trigger part can contact the printing material 200 to detect whether the printing material 200 is present in the area where the avoiding hole 12 is located.

[0044] That is, the technical scheme of the utility model, by setting the first sensing module 3 on the printing platform 1, the first sensing module 3 detects whether the printing material 200 is accurately placed at the preset printing position of the loading surface 11 to determine the loading state, so that the printing material 200 can be accurately placed in place, the problem of incomplete or offset printing pattern on the printing material 200 is avoided, and the printing effect is ensured.

[0045] Optionally, the printing platform 1 can be used as a bearing base to fix the translation assembly 8 and the like on the printing platform 1. In some embodiments, the inkjet printer 100 can further be provided with a rack 9, and the printing space is formed in the rack 9. The printing platform 1, the translation assembly 8, the print head 2 and the like are integrated and installed in the printing space.

[0046] In some embodiments of the present application, the first sensing module 3 is an optical sensor.

[0047] In the present embodiment, the optical sensor of the first sensing module 3 is arranged at the position of the avoiding hole 12. The light emitted by the optical sensor can pass through the avoiding hole 12 to detect the state of the printing material 200 on the loading surface 11. The optical sensor does not need to contact the printing material 200, which can avoid scratching the printing material 200 and reduce the risk of damage to the first sensing module 3.

[0048] The optical sensor can be, but is not limited to, a transmitting type optical sensor, a reflecting type optical sensor or other types. The transmitting type optical sensor includes an emitting part and a receiving part. The emitting part is used to emit light signals, and the receiving part can generate corresponding electrical signals according to whether the light signals are received or according to the intensity, color and the like of the received light signals. One of the emitting part and the receiving part can be arranged below the loading surface 11, and the other one of the emitting part and the receiving part can be arranged above the loading surface 11 and towards the avoiding hole 12. When the printing material 200 covers the area of the avoiding hole 12, the light signals emitted by the emitting part are blocked, which causes the receiving part to fail to receive the light signals or the intensity of the light signals received by the receiving part to weaken or the color of the light signals received by the receiving part to change, so that the receiving part generates corresponding electrical signals, thereby determining that the printing material 200 is placed in place on the loading surface 11. When the printing material 200 does not cover the area of the avoiding hole 12, the receiving part can receive the light signals emitted by the emitting part without attenuation, thereby determining that the loading surface 11 does not carry the printing material 200 or the printing material 200 is not placed in place.

[0049] In some embodiments, the first sensing module 3 includes a reflecting type optical sensor. The reflecting type optical sensor is a sensor that detects by emitting light and receiving reflected light from a detected object. The reflecting type optical sensor has a light source and a light receiving device. The light emitted by the light source is reflected by the detected object and then received by a photosensitive element. The required information is obtained through the processing of a related circuit. The use of the reflecting type optical sensor as the first sensing module 3 makes the first sensing module 3 single-sidedly installable, easy to disassemble and assemble, and suitable for detecting transparent printing materials 200, thereby having a wide range of applications.

[0050] Optionally, the first sensing module 3 can further include a wire for connecting the photoelectric sensor and the control system of the inkjet printer 100 to transmit electrical signals. In some embodiments, the first sensor 3 can also include a circuit board, and the photoelectric sensor is arranged on and electrically connected to the circuit board to be electrically connected to the control system of the inkjet printer through the circuit board.

[0051] Referring to Figure 6 In some embodiments of the present application, the inkjet printer 100 further includes a material pressing structure 10 located at the edge region of the printing platform 1 and arranged above the material loading surface 11, and a material pressing space 103 is formed between the material pressing structure 10 and the material loading surface 11.

[0052] In the present embodiment, by arranging the material pressing structure 10, when the printing material 200 is placed on the printing platform 1, the area of the printing material 200 that does not need to be inkjet printed is arranged in the material pressing space 103, so that the printing material 200 is pressed and fixed. This arrangement can improve the stability of the printing material 200 placed on the printing platform 1 and avoid the printing material 200 from being misaligned. For paper, film and other printing materials 200, it can also avoid the printing material 200 from being warped, thereby ensuring that the first sensing module 3 accurately detects the printing material 200 and ensures the printing effect.

[0053] Optionally, the material pressing structure 10 can be arranged along the circumference of the material loading surface 11 or can be arranged at part of the edge of the material loading surface 11. For example, the material pressing members 101 can be arranged at the two side edge regions of the material loading surface 11 respectively. In some embodiments, the printing platform 1 has an inlet side, and the material pressing members 101 can be arranged on both sides of the vertical inlet direction, or can be arranged on the side opposite to the inlet side, or can be arranged on the inlet side.

[0054] Referring to Figure 3 and Figure 6 In some embodiments of the present application, at least part of the avoiding hole 12 is located at the region opposite to the material pressing structure 10 of the material loading surface, and the first sensing module 3 is arranged towards the material pressing space 103. In this way, the detection region of the first sensing module 3 is arranged in the region where the material pressing space 103 is located, which can improve the detection accuracy and judgment accuracy.

[0055] In some embodiments of the present application, the material pressing structure 10 includes two material pressing members 101 arranged side by side above the material loading surface 11, and the region between the two material pressing members 101 is a printing region.

[0056] In the embodiment, the pressure pieces 101 can be provided as, but are not limited to, pressure plates, pressure wheels 431 or other structures. By providing the pressure pieces 101 on both sides of the material support surface 11, the printing material 200 can be stably placed on the material support surface 11.

[0057] Referring to Figure 3 In some embodiments of the present application, the at least one pressure piece 101 is movably arranged on the printing platform 1 to adjust the distance between the two pressure pieces 101.

[0058] In this way, the distance between the two pressure pieces 101 can be adjusted to be suitable for printing materials 200 of different sizes, thereby improving the applicability. Alternatively, the pressure piece 101 can be movably adjusted by being slidably arranged or by being arranged in a plurality of mounting positions along the arrangement direction of the two pressure pieces 101, and the pressure piece 101 is mounted on different mounting positions to adjust the distance between the two pressure pieces 101.

[0059] Referring to Figure 3 In some embodiments of the present application, the pressure piece 101 is slidably connected to the printing platform 1 to slide towards or away from the other pressure piece 101.

[0060] In this way, the distance between the two pressure pieces 101 can be adjusted steplessly, so that more sizes of printing materials 200 can be applied within the adjustment range, thereby improving the adjustment flexibility. The pressure piece 101 and the printing platform 1 can be slidably connected by a guide rail and a sliding block 102 structure or by a screw structure, which is not limited herein.

[0061] Referring to Figure 3 In some embodiments of the present application, the printing platform 1 is provided with a sliding groove 15 extending along the arrangement direction of the two pressure pieces 101, and the pressure structure 10 further comprises a sliding block 102 connected to the pressure piece 101 and arranged in the sliding groove 15. The cross-sectional shape of the sliding groove 15 and the sliding block 102 can be rectangular, circular or other regular or irregular shapes. In this way, the printing platform 1 and the pressure piece 101 have good connection strength, the pressure piece 101 is guided by the cooperation of the sliding block 102 and the sliding groove 15 to avoid deviation of the pressure piece 101, and in addition, there is no need to provide too many components, so the structure is simple and the installation is convenient.

[0062] Referring to Figure 3 and Figure 4 In some embodiments of the present application, the inkjet printer 100 further comprises a feeding module 4 arranged on the feeding side of the printing platform 1.

[0063] In the embodiment, the printing material 200 can be continuously fed onto the loading surface 11 of the printing platform 1 from the feeding side of the printing platform 1, wherein a feeding module 4 is arranged at the feeding side of the printing platform 1, and the feeding module 4 is configured to drive the printing material 200 to move. The feeding module 4 can be configured as, but is not limited to, a roller feeding structure, a conveyor belt structure, etc. In this way, the feeding process can be automated, and the degree of automation can be improved.

[0064] The feeding side of the printing platform 1 can be located at any side of the inkjet printer 100. Optionally, the inkjet printer 100 is defined to have a front side, a rear side, and left and right sides. The front side can be a user operation side and an observation side, i.e., the user can operate the inkjet printer 100 from the front side of the inkjet printer 100. In this case, the feeding side of the printing platform 1 can be arranged at the rear side or the left and right sides of the printing platform 1. Of course, in some embodiments, the front side of the printing platform 1 can also be used as the feeding side.

[0065] Optionally, the inkjet printer 100 further comprises a material rack 91, and the material rack 91 is configured to place the printing material 200 to be printed. The printing material 200 placed on the material rack 91 can be configured as a roll material, and a rotatable roller shaft is arranged on the material rack 91 to wrap the roll material. The feeding module 4 gradually pulls out the printing material 200 and feeds it to the loading surface 11.

[0066] Optionally, the inkjet printer 100 further comprises a cutting module. The cutting module can cut the printing material 200 at the discharging side of the printing platform 1 to separate the printing material 200 that has been fed out from the printing material 200 on the loading surface 11, so as to realize automatic discharging and improve the degree of automation. Optionally, a discharging bracket 92 can be arranged on the inkjet printer 100, and the discharging bracket 92 is located at the discharging side of the printing platform 1 and is configured to support the printing material 200 that has been printed. In addition, the cutting module can also be arranged to cut the printing material 200 at the feeding side of the printing platform 1 to separate the printing material 200 on the loading surface 11 from the printing material 200 that has not been fed into the printing platform 1. In this case, the printing material 200 that has been printed on the loading surface 11 can be manually removed, or a discharging module can be arranged to feed the printed material out of the printing platform 1, which is not limited herein.

[0067] Please refer to Figure 7 In some embodiments of the present application, the inkjet printer 100 further comprises a second sensing module 5 arranged at the feeding side of the printing platform 1 and configured to detect the feeding state.

[0068] In the embodiment, the second sensing module 5 can be arranged between the feeding module 4 and the printing platform 1, or arranged on the feeding side of the feeding module 4. The second sensing module 5 is used to detect the feeding state of the inkjet printer 100, i.e., whether the printing material 200 is fed to the printing platform 1. In this way, it can be determined whether the printing material 200 is accurately fed into the feeding path, and whether the printing material 200 is exhausted during continuous feeding and printing, so as to timely supplement the printing material 200 and avoid interruption of printing.

[0069] Optionally, the second sensing module 5 can be, but is not limited to, a light emitting type photoelectric sensor, a light reflecting type photoelectric sensor, or a proximity switch, etc., which is not limited herein.

[0070] In some embodiments of the present application, the second sensing module 5 is a light reflecting type photoelectric sensor.

[0071] In the embodiment, the light reflecting type photoelectric sensor is used as the second sensing module 5, which can be installed on one side, is convenient to disassemble and assemble, can be used to detect transparent printing material 200, has wide application range, and does not need to contact the printing material 200, so as to avoid scratching the printing material 200 and reduce the damage risk of the second sensing module 5.

[0072] Please refer to Figure 4 and Figure 5 In some embodiments of the present application, the feeding module 4 comprises a driving mechanism 42 and a driving roller 41. The driving roller 41 is arranged on the feeding side of the printing platform 1, and the axis of the driving roller 41 is perpendicular to the feeding direction. The driving mechanism 42 is in driving connection with the driving roller 41, and is used to drive the driving roller 41 to rotate.

[0073] In the embodiment, the feeding module 4 adopts a roller conveying structure, and comprises the driving roller 41 and the driving mechanism 42 used to drive the driving roller 41 to rotate. At least part of the roller surface of the driving roller 41 is arranged higher than the material loading surface 11, and is used to contact the printing material 200. When the driving mechanism 42 drives the driving roller 41 to rotate, the driving roller 41 drives the printing material 200 to move through friction, so as to feed the printing material 200 to the printing platform 1.

[0074] Optionally, the driving mechanism 42 can only comprise a driving part 421 such as a driving motor or a rotary cylinder, so that the output shaft of the driving motor or the rotating part of the rotary cylinder is directly connected with the driving roller 41. Alternatively, the driving mechanism 42 can comprise a transmission structure 422 used to connect the driving part 421 and the driving roller 41. The transmission structure 422 can be, but is not limited to, a belt transmission structure 422, a connecting rod transmission structure 422, a gear transmission structure 422, etc.

[0075] Please refer to Figure 3In some embodiments of the present application, the inkjet printer 100 further comprises a pressure roller module 43, the pressure roller module 43 comprises a pressure roller 431 located above the feeding module 4, the pressure roller 431 is rotatably arranged, and a feeding channel is formed between the feeding module 4 and the pressure roller 431.

[0076] In the present embodiment, the pressure roller 431 of the pressure roller module 43 is arranged above the feeding module 4, and when the printing material 200 is conveyed, the printing material 200 is clamped in the feeding channel between the feeding module 4 and the pressure roller 431, which can increase the interaction force between the printing material 200 and the feeding module 4, thereby avoiding the problem of slippage of the printing material 200, improving the stability and precision of the feeding, and ensuring that the printing material 200 of the required length is conveyed to the printing platform 1. In addition, the printing material 200 can be pressed by the pressure roller 431, so that the printing material 200 is flatly fed into the printing platform 1, and the printing material 200 is prevented from being warped. The pressure roller 431 is arranged in a rotatable structure, and the pressure roller 431 can be driven to rotate by the printing material 200 during the conveying of the printing material 200, thereby avoiding excessive friction between the pressure roller 431 and the printing material 200, and preventing the printing material 200 from being deformed or worn.

[0077] Optionally, the length of the pressure roller 431 can be equivalent to or approximately equivalent to the width of the material carrying surface 11, or a plurality of pressure rollers 431 can be arranged side by side along the rotation axis of the pressure roller 431.

[0078] In some embodiments of the present application, the pressure roller 431 is adjustably arranged in a lifting manner. This arrangement can adjust the size of the feeding channel by adjusting the height of the pressure roller 431, which can be suitable for printing materials 200 of different thicknesses, and can also adjust the clamping force on the printing material 200.

[0079] For reference Figure 4 and Figure 7 In some embodiments of the present application, the inkjet printer 100 further comprises a guide structure 6 located on the feeding side of the feeding module 4, the guide structure 6 is provided with a guide surface 62 and a feeding channel 61, at least a part of the guide surface 62 gradually changes in the direction close to the feeding module 4, and the feeding channel 61 is located at the end of the guide surface 61 close to the feeding module 4.

[0080] In the embodiment, the material guiding structure 6 can guide and limit the printing material 200, so as to ensure that the printing material 200 is accurately conveyed to the feeding module 4 and is flat. Specifically, the material guiding structure 6 is provided with a feeding channel 61 and a material guiding surface 62. The cross-sectional shape of the feeding channel 61 is substantially matched with the cross-sectional shape of the printing material 200, and the printing material 200 can pass through the feeding channel 61 and be conveyed to the feeding module 4. When the printing material 200 is not arranged opposite to the feeding channel 61, the material guiding surface 62 can be used to guide the conveying direction of the printing material 200 and guide the printing material 200 into the feeding channel 61. Optionally, the material guiding surface 62 can be provided as, but is not limited to, an inclined surface or an arc surface.

[0081] Optionally, in the height direction of the inkjet printer 100, the material guiding surface 62 can be arranged above the feeding path and gradually approach the lower side in the feeding direction. Optionally, the material guiding surface 62 can also be arranged below the feeding path and gradually approach the upper side in the feeding direction.

[0082] Please refer to Figure 5 In some embodiments of the present application, the inkjet printer 100 further comprises a limiting piece 63 arranged on the feeding side of the printing platform 1 and having two limiting surfaces 631 arranged opposite in the axial direction of the driving roller 41 to limit the direction of the printing material 200.

[0083] In the embodiment, the two limiting surfaces 631 of the limiting piece 63 limit the printing material 200 in the axial direction of the driving roller 41, so as to ensure that the printing material 200 is accurately fed into the printing platform 1. The limiting piece 63 can be arranged on the feeding side of the feeding module 4 or between the feeding module 4 and the printing platform 1, which is not limited herein.

[0084] In some embodiments, the inkjet printer 100 comprises a material guiding structure 6 provided with a material guiding surface 62 arranged above or below the feeding path in the height direction of the inkjet printer 100. In this case, the limiting piece 63 can be arranged in the area of the material guiding structure 6, so that the two limiting surfaces 631 are respectively located on the two sides of the material guiding surface 62. Optionally, the limiting piece 63 can be separately arranged from the material guiding structure 6 or integrally arranged with the material guiding structure 6.

[0085] Please refer to Figure 6 and Figure 7 In some embodiments of the present application, the printing platform 1 is provided with a chamber 13, the material carrying surface 11 is provided with a through hole 14 communicating with the chamber 13, and the inkjet printer 100 further comprises a negative pressure module 7 communicating with the chamber 13 and used to form negative pressure in the chamber 13.

[0086] In the embodiment, the negative pressure module 7 can be a gas pump, a fan or the like, and the negative pressure module 7 can extract the gas in the chamber 13 to form a negative pressure or a vacuum environment in the chamber 13, so as to form suction at the through hole 14. In this way, when the printing material 200 is placed on the loading surface 11, the printing material 200 can be adsorbed on the printing platform 1 by the suction at the through hole 14, the stability of the printing material 200 placed on the printing platform 1 is improved, and the printing material 200 is prevented from being deviated; for the printing material 200 such as paper and film, the printing material 200 can also be prevented from being warped, so that the first sensing module 3 can accurately detect the printing material 200 and the printing effect is ensured.

[0087] Referring to Figure 6 and Figure 7 In some embodiments of the present application, the chamber 13 has a first cavity wall 131 and a second cavity wall 132 arranged oppositely, the through hole 14 is arranged on the first cavity wall 131, and the negative pressure module 7 is arranged on the second cavity wall 132 and faces the first cavity wall 131. In this way, the direction of the suction force generated by the negative pressure module 7 is parallel to the axis direction of the through hole 14, the suction force at the position of the through hole 14 can be increased, and thus the adsorption strength of the printing material 200 is improved, so that the printing material 200 can be stably placed on the loading surface 11.

[0088] Referring to Figure 6 In some embodiments of the present application, the negative pressure module 7 includes a plurality of negative pressure fans 71.

[0089] In the embodiment, the negative pressure fan 71 is used as the negative pressure module 7, and the negative pressure fan 71 can be but is not limited to an axial fan, a centrifugal fan or the like. The plurality of negative pressure fans 71 can improve the exhaust efficiency, so that the negative pressure environment in the chamber 13 can be quickly formed, and thus the printing material 200 can be quickly adsorbed and fixed when the printing material 200 is placed on the loading surface 11.

[0090] Optionally, the chamber 13 has a first cavity wall 131 and a second cavity wall 132 arranged oppositely, the first cavity wall 131 is provided with the through hole 14, the plurality of negative pressure fans 71 can be arranged on the second cavity wall 132 opposite to the through hole 14, or at least part of the negative pressure fans 71 can be arranged on the side wall connecting the first cavity wall 131 and the second cavity wall 132, which is not limited herein.

[0091] The above description is only an exemplary embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields within the technical concept of the present application and the contents of the present application are included in the patent protection scope of the present application.

Claims

1. An inkjet printer characterized by comprising: The inkjet printer comprises: a printing platform having a material loading surface provided with a relief hole; a print head movably arranged above the material loading surface; and a first sensing module arranged at least partially below the material loading surface and corresponding to the relief hole, the first sensing module being configured to detect a material loading state of the material loading surface. The first sensing module comprises a photoelectric sensor.

2. The inkjet printer according to claim 1, wherein The inkjet printer further comprises a material pressing structure arranged at an edge region of the printing platform and above the material loading surface, the material pressing structure and the material loading surface forming a material pressing space therebetween.

3. The inkjet printer according to claim 1, wherein At least part of the relief hole is arranged at a region opposite to the material pressing structure with respect to the material loading surface, and the first sensing module is arranged towards the material pressing space.

4. The inkjet printer according to claim 3, wherein The material pressing structure comprises two material pressing members arranged side by side above the material loading surface, and a printing region is formed between the two material pressing members.

5. The inkjet printer according to claim 3, wherein At least one of the material pressing members is movably arranged on the printing platform to adjust a distance between the two material pressing members.

6. The inkjet printer according to claim 5, wherein The inkjet printer further comprises a feeding module, the feeding module comprising a driving mechanism and a driving roller, the driving roller being arranged at a feeding side of the printing platform, an axis of the driving roller being perpendicular to a feeding direction, and the driving mechanism being in driving connection with the driving roller to drive the driving roller to rotate.

7. The inkjet printer as claimed in any one of claims 1 to 6, characterized in that, The inkjet printer further comprises a guide structure arranged at the feeding side of the feeding module, the guide structure being provided with a guide surface and a feeding channel, at least part of the guide surface gradually changing in a direction close to the feeding module, and the feeding channel being arranged at an end of the guide surface close to the feeding module.

8. The inkjet printer of claim 7, wherein The inkjet printer further comprises a limiting member arranged at the feeding side of the printing platform and having two limiting surfaces arranged opposite to each other along an axial direction of the driving roller to limit a direction of the printing material. The inkjet printer further comprises a second sensing module arranged at the feeding side of the printing platform to detect an infeed state.

9. The inkjet printer of claim 7, wherein The inkjet printer further comprises a pressure roller module, the pressure roller module comprising a pressure roller arranged above the feeding module, the pressure roller being rotatably arranged, and the feeding module and the pressure roller forming a feeding channel therebetween. The printing platform is provided with a chamber, the material loading surface is provided with a through hole in communication with the chamber, and the inkjet printer further comprises a negative pressure module in communication with the chamber to form a negative pressure in the chamber.

10. The inkjet printer as claimed in any one of claims 1 to 6, characterized in that, ​

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