A feeding control device for inkjet printing detection platform

Abstract

The present invention discloses a feed control device for a coding inspection platform, comprising a feed drive module, a flattening module, and a flatness detection module; the flattening module comprises a flattening roller, a flattening roller, a longitudinal drive assembly, and a transverse drive assembly; the first flattening portion and the second flattening portion of the flattening roller are respectively provided with spiral friction patterns; and a gap is provided between the first flattening portion and the second flattening portion. The flattening effect of the rotating spiral friction patterns themselves, the flattening effect of the flattening portion that moves left and right, and the gradual increase in the gap between the flattening rollers bring about a progressive flattening effect. The combined effects of these three can quickly flatten wrinkles and push the residual material of the coding substrate generated by flattening wrinkles to the left and right sides, thereby preventing the residual material from being re-pressed near the original wrinkle position to generate new wrinkles. The present invention has a simple structure, reliable functions, and strong product adaptability. It can quickly eliminate wrinkles on flexible coding substrates and avoid the secondary problem of residual material being compressed to generate new wrinkles, thereby ensuring product quality and improving the yield rate.

Description

Technical Field

[0001] The present invention relates to the technical field of inkjet printing, and in particular to a feeding control device for an inkjet printing detection platform. Background Art

[0002] Inkjet coding, also known as inkjet coding, is an application of inkjet printing technology. Inkjet printing technologies include thermal bubble inkjet and micro-piezoelectric inkjet. Inkjet printing uses controlled pressure to spray ink onto flexible substrates such as paper and plastic film to create the desired pattern or text.

[0003] Traditional inkjet printers use pickup rollers and guide rollers to drive the movement of flexible substrates. Both the pickup rollers and guide rollers have a narrow, long, and continuous contact surface with the flexible substrate. Due to the lack of uniformity of the flexible substrate itself (for example, uneven hardness of different parts of the substrate due to production defects) or uneven surface roughness of the pickup rollers / guide rollers (for example, caused by equipment wear), the friction force strength / direction is uneven, which often leads to wrinkles in the middle of the flexible substrate along the vertical direction of the pickup rollers / guide rollers. The pickup rollers and guide rollers with a continuous contact surface cannot eliminate wrinkles, which in turn leads to problems such as reduced quality of inkjet printer products, lower yield rate, and increased raw material loss. Summary of the Invention

[0004] In order to overcome the problem existing in the traditional solution of the above-mentioned background technology that "traditional inkjet printing equipment cannot eliminate wrinkles on flexible inkjet printing substrates, which in turn causes the quality of inkjet printing products to decline, the yield rate to decrease, and the loss of raw materials to increase", the present invention provides a feeding control device for an inkjet printing detection platform, which eliminates wrinkle defects during the feeding process of the inkjet printing substrate of the inkjet printing equipment.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a feeding control device of a coding detection platform, comprising a feeding drive module, a flattening module, a flatness detection module and a control module arranged in a machine body; the feeding drive module, the flattening module and the flatness detection module are respectively connected to the control module; the feeding drive module comprises a receiving plate and a first paper pickup roller arranged above the receiving plate and driven by a motor; the flattening module comprises an outer shell, a flattening roller and a flattening roller arranged in the inner cavity of the outer shell and capable of rotating; the flattening roller and the flattening roller are respectively arranged in pairs, and the flattening rollers are provided with at least three pairs, and the flattening rollers are provided with at least one pair; the flattening roller and the flattening roller are arranged in parallel; the flattening roller comprises a first flattening part and a second flattening part; the outer surfaces of the first flattening part and the second flattening part are respectively provided with spiral friction patterns; a gap is provided between the first flattening part and the second flattening part, and the gap of the flattening roller close to the flattening roller gradually increases.

[0006] The flattening module also includes a longitudinal drive assembly and a transverse drive assembly; one end of the first flattening portion away from the second flattening portion is connected to both the longitudinal drive assembly and the transverse drive assembly; one end of the second flattening portion away from the first flattening portion is connected to both the longitudinal drive assembly and the transverse drive assembly.

[0007] The flattening module further includes a support rod, a hook rod, a first compression spring, and a second compression spring. A first axial hole is defined at the axial center of the first flattening portion, and a second axial hole is defined at the axial center of the second flattening portion. The first flattening portion and the second flattening portion are respectively sleeved onto both ends of the support rod and are capable of relative rotation. The flattening module further includes a hook rod, the top of which is fixedly connected to the top inner wall of the inner cavity of the housing, and the bottom of which is fixedly connected to the middle of the support rod. The hook rod is a telescopic rod. The first flattening portion is elastically and telescopically connected to the support rod via the first compression spring, and the second flattening portion is elastically and telescopically connected to the support rod via the second compression spring. The first compression spring is positioned at the bottom of the first axial hole, and the second compression spring is positioned at the bottom of the second axial hole.

[0008] The longitudinal drive assembly includes a support plate, a first linear drive and a first motor; the support plate is U-shaped; the inner side wall of the shell is provided with a slide groove for accommodating the up and down movement of the support plate; the first linear drive is installed longitudinally, the output shaft of the first linear drive is connected to the bottom of the support plate, and the bottom of the first linear drive is fixedly connected to the bottom surface of the inner cavity of the shell; the side wall of the support plate is provided with a through hole, and both ends of the flattening roller are respectively placed in the through hole and rotatably connected; both ends of the flattening roller are respectively connected with gears through splines, and the gears are placed in the inner cavity of the support plate; the first motor is fixedly installed at the bottom of the inner cavity of the support plate, and the output shaft of the first motor is meshed with the gear on the flattening roller through a gear set.

[0009] The transverse drive assembly includes a slider, a second linear actuator, and a roller. The slider is positioned on the inner sidewall of the support plate cavity and is slidably connected via a linear guide. The output shaft of the second linear actuator is connected to the slider. The rollers are mounted on both ends of the flattening roller. The side of the slider adjacent to the flattening roller is wavy, and the rollers are pressed against the wavy side of the slider under the pressure of the first or second compression spring. The second linear actuator is fixedly connected to the inner sidewall of the support plate cavity.

[0010] As a further optimization solution of the present invention, the receiving plate is provided with a receiving groove, and the receiving groove is located on a side of the first pickup roller away from the flattening module.

[0011] As a further optimization solution of the present invention, the first linear drive and the second linear drive are respectively electric push rods, hydraulic push rods, pneumatic push rods or a combination thereof.

[0012] As a further optimization solution of the present invention, the spiral friction pattern of the first flattened portion is provided with a barb-shaped non-return protrusion; the spiral friction pattern of the second flattened portion is provided with a barb-shaped non-return protrusion.

[0013] In summary, the present invention is beneficial in that: a feed control device for a coding inspection platform includes a feed drive module, a flattening module, a flatness detection module, a guide module, and a control module disposed within a machine body; the flattening module includes a housing, a flattening roller, a flattening roller, a longitudinal drive assembly, and a transverse drive assembly; the flattening rollers and the flattening rollers are arranged in pairs, each flattening roller including a first flattening portion and a second flattening portion; the outer surfaces of the first flattening portion and the second flattening portion are each provided with a spiral friction pattern; a gap is provided between the first flattening portion and the second flattening portion, and the gap between the flattening rollers closer to the flattening roller gradually increases, thereby eliminating wrinkles at different locations on the coding substrate. The flattening effect of the rotating spiral friction pattern itself, the flattening effect of the flattening portion moving left and right, and the progressive flattening effect brought about by the gradually increasing gap between the flattening rollers, the combined effects of these three can quickly flatten wrinkles and push the remaining coding substrate resulting from the flattening wrinkles to the left and right sides, thereby preventing the remaining substrate from being re-pressed near the original wrinkle location and generating new wrinkles. The present invention has a simple structure, reliable functions, and strong product adaptability. It can quickly eliminate wrinkles on the flexible inkjet coding substrate and avoid the secondary problem of new wrinkles caused by the residual material being compressed, thereby ensuring product quality, improving the yield rate, and reducing raw material loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present application is further described below with reference to the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure and position relationship of the present invention;

[0016] Figure 2 Schematic diagram of the flattened module structure driving the coding substrate;

[0017] Figure 3 This is a schematic diagram of the flattened module structure;

[0018] Figure 4 This is a schematic diagram of the flattened module structure;

[0019] Figure 5 Schematic diagram of the flattening roller structure;

[0020] Figure 6 This is a schematic diagram of the flattened module cross-section structure;

[0021] Figure 7This is an elevation view of the longitudinal drive assembly structure;

[0022] Figure 8 A top view of the positional relationship between the lateral drive assembly structure and the flattening portion (I);

[0023] Figure 9 A top view of the positional relationship between the lateral drive assembly structure and the flattening portion (2);

[0024] Figure 10 Schematic diagram of the roller structure;

[0025] Figure 11 It is a schematic diagram of the location and structure of the receiving slot;

[0026] Figure 12 This is a schematic diagram of the check protrusion structure;

[0027] Figure 13 Schematic diagram of the working principle of the flattening module.

[0028] Description of reference numerals:

[0029] In the figure, 0, inkjet printing substrate; 01, wrinkles; 1, fuselage; 2, feed drive module; 21, receiving plate; 211, receiving slot; 22, first pickup roller; 221, chute; 3, flattening module; 31, housing; 32, flattening roller; 321, first flattening portion; 3211, first shaft hole; 3212, first compression spring; 322, second flattening portion; 3221, second hole; 3222, second compression spring; 323, gap; 324, support Support rod; 325, hanging rod; 326, longitudinal drive assembly; 3261, support plate; 3262, first linear drive; 3263, first motor; 327, transverse drive assembly; 3271, slider; 3272, second linear drive; 3273, roller; 33, flattening roller; 4, flatness detection module; 5, guide module; 6, discharge drive module; S221', first motion path; S222', second motion path. DETAILED DESCRIPTION

[0030] Based on the above structural features of the present application, the implementation methods of the present application are further described:

[0031] Reference Figure 1A feed control device for an inkjet printing inspection platform includes a feed drive module 2, a flattening module 3, a flatness detection module 4, a guide module 5, and a control module, positioned within a machine body 1. The feed drive module 2, flattening module 3, and flatness detection module 4 are each connected to the control module via wires and signal lines. The control module may include a built-in PLC controller or an external computer. The feed drive module 2 includes a receiving plate 21 and a first pickup roller 22 positioned above the receiving plate and driven by a motor (e.g., via a gear train). The guide module 5 includes several freely rotating guide rollers rotatably connected to the inner wall of the machine body 1 via bearings. The flatness detection module 4 is fixedly connected to the flattening module 3 (e.g., via bolts), with the information collection port of the flatness detection module 4 facing the inkjet printing substrate 0 or the path of the inkjet printing substrate 0. During operation, the first pickup roller 22 rotates continuously and, through surface friction, feeds the inkjet printing substrate 0 into the flattening module 3. The inkjet coding device equipped with the present invention also includes a discharge drive module 6, which is provided with a second pickup roller driven by a motor. Under the action of the first pickup roller 22 and / or the second pickup roller, the inkjet coding substrate 0 can be transmitted along the guide module 5 to the inkjet module for coding operation.

[0032] Reference Figures 1 to 4 The flattening module 3 includes a housing 31, a flattening roller 32 and a flattening roller 33 rotatably positioned within the housing 31. The flattening rollers 32 and flattening rollers 33 are arranged in pairs, with at least three pairs of flattening rollers 32 and at least one pair of flattening rollers 33. The flattening rollers 32 and flattening rollers 33 are arranged in parallel. The two flattening rollers 32 of a pair of flattening rollers 32 are positioned on either side of the coding substrate 0 and press-fitted against it. The two flattening rollers 33 of a pair of flattening rollers 33 are positioned on either side of the coding substrate 0 and press-fitted against it. The flattening rollers 33 are rotatably connected to the housing 31 via bearings at both ends. The flattening rollers 33 are driven by a motor (e.g., via a gear train). The first pickup roller 22 and the flattening rollers 33 work together to transport the coding substrate 0 into the flattening module 3 and past the flattening rollers 32.

[0033] Reference Figure 2 、 3 5. The flattening roller 32 includes a first flattening portion 321 and a second flattening portion 322. The outer surfaces of the first flattening portion 321 and the second flattening portion 322 are respectively provided with spiral friction patterns. A gap 323 is provided between the first flattening portion 321 and the second flattening portion 322. The gap 323 of the flattening roller 32 gradually increases (i.e., the width H gradually increases) as it approaches the flattening roller 33. This is used to eliminate wrinkles 01 at different locations on the inkjet printing substrate 0 and squeeze the extended inkjet printing substrate 0 generated by eliminating wrinkles 01 to both sides. Figure 3The rotation direction of the spiral friction pattern and the rotation direction of the first flattened portion 321 and the second flattened portion 322 can generate a pulling force directed to the left and right sides of the inkjet coding substrate 0 to eliminate the wrinkles 01.

[0034] Reference Figure 6 The flattening module 3 further includes a longitudinal drive assembly 326 and a transverse drive assembly 327. The end of the first flattening portion 321 away from the second flattening portion 322 is connected to both the longitudinal drive assembly 326 and the transverse drive assembly 327. The end of the second flattening portion 322 away from the first flattening portion 321 is connected to both the longitudinal drive assembly 326 and the transverse drive assembly 327. The longitudinal drive assemblies 326 at the left and right ends of the flattening module 3 are arranged in axisymmetric positions and are driven in axisymmetric directions. The transverse drive assemblies 327 at the left and right ends of the flattening module 3 are arranged in axisymmetric positions and are driven in axisymmetric directions.

[0035] Reference Figure 6 The flattening module 3 further includes a support rod 324, a connecting rod 325, a first compression spring 3212, and a second compression spring 3222. A first axial hole 3211 is provided at the axial center of the first flattening portion 321, and a second axial hole is provided at the axial center of the second flattening portion 322. The first axial hole 3211 and the second axial hole are respectively connected to the support rod 324. The first flattening portion 321 and the second flattening portion 322 are respectively connected to the ends of the support rod 324 and can rotate relative to each other. The flattening module 3 also includes a connecting rod 325, the top of which is fixedly connected to the top inner wall of the inner cavity of the housing 31 (for example, by bolts), and the bottom of which is fixedly connected to the middle of the support rod 324. The connecting rod 325 is a multi-section hollow telescopic rod (this is prior art and will not be described in detail here). The telescopic rod is used to adapt to the longitudinal movement of the flattening roller 32 described below. The first flattened portion 321 is elastically and telescopically connected to the support rod 324 via a first compression spring 3212. The second flattened portion 322 is elastically and telescopically connected to the support rod 324 via a second compression spring 3222. This elastic and telescopic connection accommodates the lateral movement of the first and second flattened portions 321, 322. The first compression spring 3212 is positioned at the bottom of the first axial hole 3211, and the second compression spring 3222 is positioned at the bottom of the second axial hole.

[0036] Reference Figures 6-7The longitudinal drive assembly 326 includes a support plate 3261, a first linear actuator 3262, and a first motor 3263. The support plate 3261 is U-shaped. The inner wall of the housing 31 is provided with a slide groove 221 for accommodating the up and down movement of the support plate 3261. The first linear actuator 3262 is longitudinally mounted, with its output shaft connected to the bottom of the support plate 3261, and its bottom fixedly connected to the bottom surface of the inner cavity of the housing 31. The side wall of the support plate 3261 is provided with a through hole, and both ends of the flattening roller 32 are respectively positioned within the through hole and rotatably connected thereto. The flattening roller 32 is splined to a gear at each end, and the gear is positioned within the inner cavity of the support plate 3261. The outer spline is fixedly connected to the gear axis (e.g., by radial bolts), and the inner spline is sleeved and fixedly mounted (e.g., by radial bolts) on the end of the flattening roller 32, allowing relative axial sliding between the inner and outer splines. The first motor 3263 is fixedly mounted at the bottom of the inner cavity of the support plate 3261. The output shaft of the first motor 3263 meshes with the gear on the flattening roller 32 through a gear train. The first linear actuator 3262 can push the support plate 3261 upward or downward, further driving the flattening roller 32 (including the first flattening portion 321, the second flattening portion 322, and the support rod 324) upward or downward, while the connecting rod 325 adaptively extends and retracts.

[0037] Reference Figures 6-10 The lateral drive assembly 327 includes a slider 3271, a second linear actuator 3272, and rollers 3273. The slider 3271 is positioned on the inner sidewall of the support plate 3261 cavity and is slidably connected via a linear guide. The output shaft of the second linear actuator 3272 is connected to the slider 3271. The rollers 3273 are mounted on both ends of the flattening roller 32. The side of the slider 3271 adjacent to the flattening roller 32 is wavy. The rollers 3273, under the pressure of the first compression spring 3212 or the second compression spring 3222, press against the wavy side of the slider 3271. The second linear actuator 3272 is fixedly connected to the inner sidewall of the support plate 3261 cavity. The wavelength of the wavy side equals the spacing between the flattening rollers 32. When the slider 3271 slides, the rollers 3273 roll along the wavy side of the slider 3271, pushing the first flattening portion 321 and the second flattening portion 322 to move laterally.

[0038] Reference Figure 11 The receiving plate 21 is provided with a receiving groove 211, which is placed on the side of the first pickup roller 22 away from the flattening module 3; when the first pickup roller 22 returns the material, the receiving groove 211 is used to accommodate the curled inkjet coding substrate 0.

[0039] The first linear actuator 3262 and the second linear actuator 3272 are each an electric push rod, a hydraulic push rod, a pneumatic push rod, or a combination thereof (e.g., an electro-hydraulic push rod). The flatness detection module 4 can be, for example, a distance sensor or a camera. The distance sensor detects the height difference on the surface of the coding substrate 0 to identify wrinkles 01. The camera is connected to a computer, which detects shadows / color difference signals on the coding substrate 0 to identify wrinkles 01. These are all existing technical solutions and will not be described in detail.

[0040] Reference Figure 12 The spiral friction pattern of the first flattened portion 321 is provided with a barbed non-return protrusion; the spiral friction pattern of the second flattened portion 322 is provided with a barbed non-return protrusion. The spiral friction pattern and the barbed non-return protrusion are made of rubber material, for example, to provide friction and avoid scratching the inkjet coding substrate 0.

[0041] Reference Figure 13 , which is a schematic diagram of the working principle of the flattening module 3 consisting of three pairs of flattening rollers 32 and a pair of flattening rollers 33. The direction of the arrow is a schematic diagram of the movement path of the flattening part at the corresponding position. Taking the first flattening part 321' along the first movement path S221' as an example, to achieve this movement path, ① the output shaft of the first linear drive 3262 is extended to push the support plate 3261 and the first flattening part 321' to move upward; ② the output shaft of the second linear drive 3272 is extended until the roller 3273 rolls from the trough to the crest, causing the first flattening part 321' to move to the right; ③ the output shaft of the first linear drive 3262 is retracted, pulling the support plate 3261 and the first flattening part 321' downward; ④ the output shaft of the second linear drive 3272 is retracted, and the first compression spring 3212 pushes the roller 3273 to roll from the crest to the trough, causing the first flattening part 321' to move to the left. During the upward, downward, and rightward movement of the first flattening portion 321', the spiral friction lines and the barbed non-return protrusions are separated from the surface of the inkjet coding substrate 0; during the leftward movement of the first flattening portion 321', the spiral friction lines and the barbed non-return protrusions are pressed against the surface of the inkjet coding substrate 0, and the first flattening portion 321' applies a thrust pointing to the left to the inkjet coding substrate 0, which is used to flatten the wrinkles 01. Similarly, the first flattening portion 321' along the first movement path S221' and the second flattening portion 322' along the second movement path S222' cooperate with each other to apply thrusts pointing to both sides to the surface of the inkjet coding substrate 0, respectively, achieving a better flattening effect. Figure 3 、 5 and Figure 13The three pairs of flattening rollers 32 have different gaps 323, the size of which is controlled by the length of the flattening portion. The movement paths of the first flattening portion 321 and the second flattening portion 322 on the same flattening roller 32 have minimum distances (H3, H2, and H1, respectively, equal to the width of the gap 323 on the corresponding flattening roller 32), with H3 > H2 > H1. Because the flattening portion itself lacks the ability to expand or contract (it does have the ability to translate, meaning that its rotation can push the wrinkles 01 and the inkjet substrate 0 in contact with its crimping surface to the left or right), the flattening roller 32 can only flatten the wrinkles 01 within its corresponding gap 323. As gap 323 between flattening rollers 32 closer to flattening roller 33 gradually increases, flattening rollers 32 farther from flattening roller 33 prioritize flattening wrinkles 01 within gap 323 (i.e., wrinkles 01 located in the center of substrate 0), while simultaneously pushing remaining wrinkles 01 to the sides. The remaining flattening rollers 32 gradually flatten wrinkles 01 located in the sub-center of substrate 0, thus creating a progressive flattening effect. Flattening wrinkles 01 causes previously folded wrinkles 01 to unfold, resulting in excess substrate 0 remaining at the location of the flattened wrinkles 01. The combined flattening effects of the rotating spiral friction pattern, the flattening effect of the left-right moving flattening portion, and the progressive flattening effect of the gradually increasing gap 323 between flattening rollers 32 rapidly flatten wrinkles 01 and push any excess substrate 0 left by flattening wrinkles 01 to the left and right, preventing the excess substrate 0 from being re-pressed near the original wrinkle 01 and creating new wrinkles. The flattened inkjet substrate is shaped by the flattening roller 33 and transported to the flatness detection module 4. When the flatness detection module 4 does not detect the wrinkle 01, the peripheral computer controls the inkjet device to continue to transport the inkjet substrate 0 to the subsequent inkjet module for spraying; when the flatness detection module 4 detects the wrinkle 01, the peripheral computer controls the output shaft of the first linear driver 3262 to extend until the flattening roller 32 is separated from the surface of the inkjet substrate 0 (the crimping fails at this time), and the peripheral computer further controls the first paper pickup roller to rotate in the opposite direction, pulling the part with the wrinkle 01 in the flatness detection mold into the feeding drive module 2 (at this time, the peripheral computer also controls the discharging drive module 6 to stop working), and then the flattening module 3 re-flattens the part of the inkjet substrate 0. Because the first paper pickup roller rotates in the opposite direction to pull out the inkjet substrate 0 with the wrinkle 01 in the flatness detection module 4, the inkjet substrate 0 originally in the flattening module 3 will be discharged in the opposite direction through the feeding drive module 2 and accumulated in the receiving slot 211 (refer to Figure 11), to prevent the discharged inkjet substrate 0 from randomly piling up on the receiving plate 21. At the same time, by observing whether the inkjet substrate 0 is piled up in the receiving groove 211, the staff can judge the working status of the present invention: when the inkjet substrate 0 is piled up in the receiving groove 211 for a long time, the staff can judge that the wrinkles 01 cannot be eliminated. If the staff manually judges that the wrinkles 01 are a serious problem, the staff can manually cut the part of the inkjet substrate 0. If the staff manually judges that the wrinkles 01 are a minor problem (to a negligible level), the flattening module 3 and the flatness detection module 4 can be controlled by the external computer to skip the flattening and detection operations of the part of the inkjet substrate 0 (the output shaft of the first linear drive 3262 remains in an extended state until the pressure connection between the flattening roller 32 and the inkjet substrate 0 fails, and the distance sensor or camera stops detecting, ensuring that the inkjet substrate 0 can pass without inspection), and directly pull the part of the inkjet substrate 0 through the guide module 5 and into the inkjet module for spraying through the feed drive module 2 and the discharge drive module 6.

[0042] The present invention has a simple structure, reliable functions, and strong product adaptability. It can quickly eliminate wrinkles 01 on the flexible inkjet coding substrate 0 and avoid the secondary problem of new wrinkles 01 caused by pressure on the remaining material, thereby ensuring product quality, improving the yield rate, and reducing raw material loss.

[0043] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0044] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed or detachable connections, or integral connections; mechanical or electrical connections; direct connections or connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0045] To sum up, for those skilled in the art, according to the guidance of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, replacements and deformations made to the present invention still fall within the scope of protection of the present invention.

Claims

1. A feeding control device for a coding detection platform, characterized in that: The invention comprises a feeding drive module (2), a flattening module (3), a flatness detection module (4) and a control module arranged in a machine body (1); the feeding drive module (2), the flattening module (3) and the flatness detection module (4) are respectively connected to the control module; the feeding drive module (2) comprises a receiving plate (21) and a first paper pickup roller (22) arranged above the receiving plate (21) and driven by a motor; The flattening module (3) comprises a housing (31), a flattening roller (32) and a flattening roller (33) disposed in an inner cavity of the housing (31) and capable of rotating; the flattening rollers (32) and the flattening rollers (33) are arranged in pairs, at least three pairs of flattening rollers (32) are provided, and at least one pair of flattening rollers (33) is provided; the flattening rollers (32) and the flattening rollers (33) are arranged in parallel; The flattening roller (32) comprises a first flattening portion (321) and a second flattening portion (322); the outer surfaces of the first flattening portion (321) and the second flattening portion (322) are respectively provided with spiral friction patterns; a gap (323) is provided between the first flattening portion (321) and the second flattening portion (322), and the gap (323) of the flattening roller (32) gradually increases in a direction approaching the flattening roller (33); The flattening roller (32) away from the flattening roller (33) preferentially flattens the wrinkles (01) in the gap (323), that is, the wrinkles (01) located in the middle of the coding substrate (0); the remaining flattening rollers (32) gradually flatten the wrinkles (01) at the secondary center of the coding substrate (0); The flattening module (3) further comprises a longitudinal drive assembly (326) and a transverse drive assembly (327); an end of the first flattening portion (321) away from the second flattening portion (322) is connected to both the longitudinal drive assembly (326) and the transverse drive assembly (327); and an end of the second flattening portion (322) away from the first flattening portion (321) is connected to both the longitudinal drive assembly (326) and the transverse drive assembly (327).

2. The feeding control device of the inkjet printing detection platform according to claim 1 is characterized in that: The flattening module (3) further includes a support rod (324), a hooking rod (325), a first compression spring (3212), and a second compression spring (3222); A first axial hole (3211) is provided at an axial center position of the first flattened portion (321), and a second axial hole is provided at an axial center position of the second flattened portion (322); the first flattened portion (321) and the second flattened portion (322) are respectively sleeved on both ends of the support rod (324) and are respectively rotatable relative to each other; the flattening module (3) further comprises a hanging rod (325), the top of the hanging rod (325) is fixedly connected to the top inner wall of the inner cavity of the shell (31), and the bottom of the hanging rod (325) is fixedly connected to the middle of the support rod (324); the hanging rod (325) is a telescopic rod; The first flattened portion (321) is elastically and telescopically connected to the support rod (324) via the first compression spring (3212); and the second flattened portion (322) is elastically and telescopically connected to the support rod (324) via the second compression spring (3222).

3. The feeding control device of the inkjet printing detection platform according to claim 2 is characterized in that: The first compression spring (3212) is placed at the bottom of the first shaft hole (3211), and the second compression spring (3222) is placed at the bottom of the second shaft hole.

4. The feeding control device of the inkjet printing detection platform according to claim 3 is characterized in that: The longitudinal drive assembly (326) includes a support plate (3261), a first linear drive (3262) and a first motor (3263); the support plate (3261) is U-shaped; the inner wall of the housing (31) is provided with a slide groove (221) for accommodating the up and down movement of the support plate (3261); the first linear drive (3262) is installed longitudinally, the output shaft of the first linear drive (3262) is connected to the bottom of the support plate (3261), and the bottom of the first linear drive (3262) is connected to the The bottom surface of the inner cavity of the housing (31) is fixedly connected; a through hole is provided on the side wall of the support plate (3261), and both ends of the flattening roller (32) are respectively placed in the through hole and rotatably connected; both ends of the flattening roller (32) are respectively connected to gears through splines, and the gears are placed in the inner cavity of the support plate (3261); the first motor (3263) is fixedly installed at the bottom of the inner cavity of the support plate (3261), and the output shaft of the first motor (3263) is engaged with the gear on the flattening roller (32) through a gear set.

5. The feeding control device of the inkjet printing detection platform according to claim 4 is characterized in that: The lateral drive assembly (327) includes a slider (3271), a second linear drive (3272) and a roller (3273); the slider (3271) is placed on the inner wall of the inner cavity of the support plate (3261) and is slidably connected via a linear guide rail; the output shaft of the second linear drive (3272) is connected to the slider (3271); the roller (3273) is installed at both ends of the flattening roller (32); the side of the slider (3271) close to the flattening roller (32) is wavy, and the roller (3273) is pressed against the wavy side of the slider (3271) under the pressure of the first compression spring (3212) or the second compression spring (3222).

6. The feeding control device of the inkjet printing detection platform according to claim 5, characterized in that: The second linear drive (3272) is fixedly connected to the inner wall of the inner cavity of the support plate (3261).

7. The feeding control device of the inkjet printing detection platform according to any one of claims 1 to 6, characterized in that: The receiving plate (21) is provided with a receiving groove (211), and the receiving groove (211) is placed on a side of the first pickup roller (22) away from the flattening module (3).

8. The feeding control device of the inkjet printing detection platform according to claim 5, characterized in that: The first linear drive (3262) and the second linear drive (3272) are respectively electric push rods, hydraulic push rods or pneumatic push rods.

9. The feeding control device of the inkjet printing detection platform according to any one of claims 1 to 6, characterized in that: The spiral friction pattern of the first flattened portion (321) is provided with a barb-shaped non-return protrusion; and the spiral friction pattern of the second flattened portion (322) is provided with a barb-shaped non-return protrusion.

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