Invisible printing product inspection through printing device

Abstract

The invention discloses an invisible printed product inspection through-printing device, and particularly relates to the technical field of detection equipment, the invisible printed product inspection through-printing device comprises a box body and two symmetrical supporting plates, a detection part is fixed at the upper end of the box body, cylinders are fixed at the ends, close to each other, of the two supporting plates, gear rings are fixed on the outer surfaces of the two cylinders, and the gear rings are fixed on the upper end of the box body. A clamping rotating part is jointly and rotationally installed at the ends, close to each other, of the two cylinders, a swinging part and a matching part are installed at one end of one supporting plate, and a through printing collecting part is installed on one side of the clamping rotating part. According to the invisible printing product inspection through-printing device, through mutual cooperation of the arranged swinging part, the arranged matching part and the arranged clamping rotating part, the swinging detection head rotates along with rotation of a cylindrical printed matter clamped by a clamping circular plate, so that the detection head can repeatedly scan and detect the surface of the cylindrical printed matter; the situation that missing places are not detected is avoided, and the detection accuracy is improved.

Description

Technical Field

[0001] The invention relates to the technical field of detection equipment, and in particular to a device for detecting missing prints of invisible printed products. Background Art

[0002] Invisible anti-counterfeiting technology achieves product anti-counterfeiting by combining information technology with packaging and printing technology in a way that is difficult to distinguish directly with the naked eye. In invisible printed products, special inks such as colorless invisible anti-alteration inks and specific printing technologies (such as offset printing, silk screen printing, etc.) are usually used to print anti-counterfeiting information (such as invisible patterns or text) on the product.

[0003] In the process of checking invisible printed products for missing prints, the inspection of cylindrical printed products requires manual rolling of the products so that the entire outer surface can be inspected. Rotating cylindrical printed products wastes time, which leads to low inspection efficiency. In addition, due to the negligence of workers during the rotation process, missed areas cannot be detected, which also makes the inspection inaccurate. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that in the process of inspecting whether a cylindrical printed product has missed prints, rotating the cylindrical printed product will waste time, resulting in low detection efficiency, and in the process of rotation, due to the negligence of workers, some missed parts cannot be detected, which will also lead to insufficient detection accuracy. A device for inspecting missed prints of invisible printed products is proposed.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technology: a device for detecting missing printing of invisible printing products:

[0006] It includes a box body and two symmetrical support plates, a detection component is fixed on the upper end of the box body, a cylinder is fixed on the ends of the two support plates close to each other, a gear ring is fixed on the outer surface of the two cylinders, a clamping rotating component is installed on the ends of the two cylinders close to each other for common rotation, a swing component and a matching component are installed on one end of one of the support plates, and a missing print collecting component is installed on one side of the clamping rotating component;

[0007] The clamping rotating component includes a motor 1 and two mounting circular plates, a rotating shaft is fixed to the output end of the motor 1, a bidirectional screw is rotatably connected between the two mounting circular plates, two symmetrical moving plates are provided on the outer surface of the bidirectional screw, a groove disc 1 is rotatably provided on the two moving plates, a clamping circular plate is fixed to one end of the two groove discs 1 close to each other, a positioning shaft is fixed to the two clamping circular plates, a groove disc 2 is rotatably connected to the two mounting circular plates, and a gear 1 is fixed to the two groove discs 2;

[0008] The rotating mounting circular plate causes the gear one to rotate under the action of the gear ring, and the grooved circular plate two and the grooved circular plate one connected by the positioning shaft rotate, thereby rotating the clamping circular plate. The rotation of the two clamping circular plates can rotate the clamped cylindrical printed matter, so that the surface of the cylindrical printed matter can be quickly inspected, thereby improving the efficiency of the inspection.

[0009] As a further description of the above-mentioned technology, a device for detecting missing printing of invisible printing products is as follows:

[0010] One end of one of the mounting circular plates is fixed with a second motor, and an output end of the second motor is fixedly connected to a bidirectional screw.

[0011] As a further description of the above-mentioned technology, a device for detecting missing printing of invisible printing products is as follows:

[0012] The gear 1 is meshed with the gear ring on the same side, and the positioning shaft passes through the groove disc 1, the groove disc 2 and the gear 1 on the same side in sequence.

[0013] As a further description of the above-mentioned technology, a device for detecting missing printing of invisible printing products is as follows:

[0014] A cleaning rod is fixed between the two mounting circular plates.

[0015] As a further description of the above-mentioned technology, a device for detecting missing printing of invisible printing products is as follows:

[0016] The swing component includes a U-shaped frame fixed to one end of the support plate, the inner cavity of the U-shaped frame is rotatably connected to a second gear, a rotating plate is fixed on the connecting shaft of the second gear, and a detection head is fixed to one end of the rotating plate through a connecting column.

[0017] As a further description of the above-mentioned technology, a device for detecting missing printing of invisible printing products is as follows:

[0018] The matching component includes a connecting plate fixedly connected to the rotating shaft and a rotating block rotatably connected to the support plate, a round rod is fixed to one end of the connecting plate, a sliding groove matching the round rod is opened at one end of the rotating block, and an arc-shaped toothed plate is fixed to one end of the rotating block.

[0019] As a further description of the above-mentioned technology, a device for detecting missing printing of invisible printing products is as follows:

[0020] The arc-shaped tooth plate is meshed with gear two.

[0021] As a further description of the above-mentioned technology, a device for detecting missing printing of invisible printing products is as follows:

[0022] The detection component comprises a mounting plate and a hydraulic cylinder. A U-shaped frame is fixed on the outer side of the mounting plate. Detectors are fixed on both ends of the U-shaped frame. An electric push rod is fixed on the upper end of the U-shaped frame.

[0023] As a further description of the above-mentioned technology, a device for detecting missing printing of invisible printing products is as follows:

[0024] A loading plate is fixed on one side of the inner cavity of the U-shaped frame away from the mounting plate, electric push rods are fixed at both ends of the U-shaped frame, and baffles are fixed at the output ends of the two electric push rods.

[0025] As a further description of the above-mentioned technology, a device for detecting missing printing of invisible printing products is as follows:

[0026] The missed print collection component includes a collection box, one end of which is fixed with two symmetrical straight plates, a feed plate is rotatably connected between the two straight plates, both ends of the feed plate are fixed with retaining frames, and one end of one of the straight plates is fixed with a motor three for controlling the rotation of the feed plate.

[0027] In summary, due to the use of the above-mentioned technology, the device for detecting missing printing of invisible printing products has the following beneficial effects:

[0028] 1. The device can automatically clamp and rotate the cylindrical printed matter for detection through the cooperation between the swinging parts, the matching parts and the clamping and rotating parts, which saves the time of manually rotating the cylindrical printed matter and improves the detection efficiency of the device. The swinging detection head rotates along with the rotation of the cylindrical printed matter clamped by the clamping circular plate, so that the detection head can repeatedly scan and detect the surface of the cylindrical printed matter to avoid missing places that are not detected, thereby improving the accuracy of the detection; the cylindrical printed matter is clamped by two clamping circular plates, and as the mounting circular plates rotate, the cylindrical printed matter is detected by the detection head during the rotation process. Then, during the rotation of the two mounting circular plates, the two clamping circular plates rotate with the cylindrical printed matter. At the same time, under the action of the arc tooth plate, the gear 2 rotates with the rotating plate, so that the detection head rotates along with the rotation of the cylindrical printed matter clamped by the two clamping circular plates, so that the detection head and the cylindrical printed matter rotate together for a distance on the same straight line, so that the detection head can perform multiple scans and detections on the surface of the cylindrical printed matter, thereby improving the detection accuracy of the device.

[0029] 2. The device can not only fully detect cylindrical printed products through the detection components, swing components, matching components and clamping and rotating components, but also detect only the outer surface of cylindrical printed products, thereby improving the applicability of the device; through the two detectors, the two ends of the cylindrical printed products pushed in the inner cavity of the U-shaped frame can be detected, and with the two electric push rods, the cylindrical printed products can be sorted, and the cylindrical printed products are clamped by two clamping circular plates to rotate them, and the outer surface of the cylindrical printed products is detected during the rotation with the swinging detection head, wherein the two detectors can start the detection of the two ends of the cylindrical printed products, and can also be used as a loading component, so that the device can fully detect the cylindrical printed products or only detect their outer surface, thereby improving the applicability of the device.

[0030] 3. This device can sort cylindrical printed products through the cooperation between the clamping rotating parts and the missed print collecting parts. Through automatic sorting, the printed products after inspection can be quickly classified according to whether they are qualified or not, avoiding the tedious and time-consuming manual sorting, thereby significantly improving production efficiency; the surface of the cylindrical printed product is inspected by the detection head. When the cylindrical printed product is located on the curved surface of the blanking plate, if it is an unqualified product, it will roll along the surface of the blanking plate into the inner cavity of the collection box. If it is a qualified product, the cylindrical printed product will continue to be clamped by the two clamping circular plates to hold the rotating parts, so that it is located on the upper side of the collection frame, and then falls into the collection frame.

[0031] 4. By setting up a cleaning rod, the surface of the cylindrical printed product can be cleaned during the rotation of the cylindrical printed product to prevent impurities from affecting the accuracy of detection; in the process of the cylindrical printed product being clamped by the two clamping circular plates, since gear 1 cooperates with the gear ring on the same side, the clamped cylindrical printed product rotates, and the cleaning rod is close to the cylindrical printed product. During the rotation of the cylindrical printed product, the cleaning rod can clean the impurities on the surface of the cylindrical printed product, so that there are no impurities on the surface of the cylindrical printed product that affect the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The overall structure provided by the embodiment of the present invention is shown Figure 1 ;

[0033] Figure 2 The overall structure provided by the embodiment of the present invention is shown Figure 2 ;

[0034] Figure 3 A schematic diagram of the structure of a detection component provided according to an embodiment of the present invention is shown;

[0035] Figure 4 A cross-sectional view of the structure of a detection component provided according to an embodiment of the present invention is shown;

[0036] Figure 5 It shows a schematic structural diagram of a clamping rotating component provided in an embodiment of the present invention;

[0037] Figure 6 It shows a schematic structural diagram of the working state of the clamping rotating component provided in an embodiment of the present invention;

[0038] Figure 7 A schematic diagram showing the matching state of a gear 1 and a gear ring provided in an embodiment of the present invention is shown;

[0039] Figure 8 It shows a schematic structural diagram of a swing component and a matching component provided according to an embodiment of the present invention;

[0040] Fig. 9 A schematic diagram showing the matching state of a swing component and a matching component provided in an embodiment of the present invention is shown;

[0041] Fig.10 A schematic diagram of the structure of a missing print collecting component provided in an embodiment of the present invention is shown;

[0042] Fig.11 A schematic diagram showing the cooperation state between the clamping rotating component and the stencil collecting component provided in an embodiment of the present invention is shown;

[0043] Fig.12 A schematic diagram showing the matching state of a clamping rotating component and a detection component provided according to an embodiment of the present invention is shown.

[0044] Legend:

[0045] 10. Box body;

[0046] 20. Support plate; 30. Cylinder; 40. Gear ring;

[0047] 50. Missing print collection component; 51. Collection box; 52. Straight plate; 53. Motor 3; 54. Stop frame; 55. Unloading plate;

[0048] 60. Clamping rotating part; 61. Motor 1; 62. Rotating shaft; 63. Mounting circular plate; 64. Bidirectional screw; 65. Moving plate; 66. Motor 2; 67. Positioning shaft; 68. Gear 1; 69. Grooved disc 1; 610. Clamping circular plate; 611. Cleaning rod; 612. Grooved disc 2;

[0049] 70. Swinging component; 71. U-shaped frame; 72. Gear 2; 73. Rotating plate; 74. Detection head;

[0050] 80. Matching parts; 81. Connecting plate; 82. Round rod; 83. Sliding groove; 84. Arc tooth plate; 85. Rotating block;

[0051] 90. Detection component; 91. Hydraulic cylinder; 92. Mounting plate; 93. U-shaped frame; 94. Detector; 95. Electric push rod; 96. Loading plate; 97. Baffle; 98. Electric push rod. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technology of the invisible printing product detection missing printing device 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 making creative work are within the scope of protection of the present invention.

[0053] Embodiment 1

[0054] like Figure 1 and Figure 2 As shown, a device for detecting missing prints of invisible printed products comprises a box body 10 and two symmetrical support plates 20. A detection component 90 is fixed on the upper end of the box body 10. The detection component 90 is used to detect both ends of a cylindrical printed product. A cylinder 30 is fixed on one end of the two support plates 20 close to each other. A gear ring 40 is fixed on the outer surface of the two cylinders 30.

[0055] Among them, the ends of the two cylinders 30 close to each other are jointly rotated with a clamping rotating component 60, which is used to detect the outer surface of the cylindrical printed matter. In conjunction with the detection of both ends of the detection component 90, all surfaces of the cylinder can be detected without omission, thereby improving the accuracy of the detection;

[0056] Next, a swing component 70 and a matching component 80 are installed at one end of one of the support plates 20. The swing component 70 is fixed on the support plate 20, and the matching component 80 is rotatably connected to the support plate 20. The swing component 70 is swung along with the clamped cylindrical printed matter through the action of the clamping rotating component 60, so that the surface of the rotating cylindrical printed matter can be scanned multiple times to avoid missed detection and inaccurate detection. A missed print collecting component 50 is installed on one side of the clamping rotating component 60, and the missed print collecting component 50 is used to separate the missed print cylindrical printed matter.

[0057] Further, if Figure 3 and Figure 4As shown, the detection component 90 includes a mounting plate 92 and a hydraulic cylinder 91. The mounting plate 92 is fixed to the upper end of the box body 10. The hydraulic cylinder 91 is fixedly connected to one end of the mounting plate 92. A pushing plate for pushing cylindrical printed products is fixed to the output end of the hydraulic cylinder 91. A U-shaped frame 93 is fixed to the outside of the mounting plate 92. The U-shaped frame 93 is fixed to the upper side of the mounting plate 92 and is fixedly connected to both ends of the mounting plate 92. A feeding port is opened at the upper end of the U-shaped frame 93 for feeding cylindrical printed products. The feeding port is close to the output end of the hydraulic cylinder 91.

[0058] Wherein, detectors 94 are fixed at both ends of the U-shaped frame 93, and mounting holes for matching with the detectors 94 are provided on the U-shaped frame 93, so that the detection part of the detector 94 is aligned with the inner cavity of the U-shaped frame 93, and an electric push rod 98 is fixed at the upper end of the U-shaped frame 93, and a block is fixed at the output end of the electric push rod 98, which is used to block the cylindrical printed matter, so that the two detectors 94 can detect whether the two ends of the cylindrical printed matter are missing;

[0059] Next, a loading plate 96 is fixed to the side of the inner cavity of the U-shaped frame 93 away from the mounting plate 92. One side of the loading plate 96 is arc-shaped, and the diameter of the arc surface is the same as the diameter of the cylindrical printed product, so that the cylindrical printed product can be attached to the arc surface of the loading plate 96. Electric push rods 95 are fixed to both ends of the U-shaped frame 93. Baffles 97 are fixed to the output ends of the two electric push rods 95. The baffles 97 slide between the loading plates 96. The two electric push rods 95 slide with the baffles 97, so that the gap between the loading plate 96 and the mounting plate 92 can be opened, so that the cylindrical printed product can fall.

[0060] When invisible printed marks are printed on both ends of the cylindrical printed product, the two electric push rods 95 will move the baffle 97 at the output end, open the gap between the mounting plate 92 and the loading plate 96, and allow the cylindrical printed product to fall into the inner cavity of the box body 10, so that the detection component 90 can detect both ends of the printed product and can perform screening, thereby improving the applicability of the device. If there are no invisible printed marks on both ends of the cylindrical printed product, the output end of the hydraulic cylinder 91 will push the cylindrical printed product to the curved surface of the loading plate 96.

[0061] Embodiment 2

[0062] This embodiment further defines the clamping rotating component 60, the swinging component 70 and the matching component 80 on the basis of the first embodiment, so as to achieve the purpose of inspecting the outer surface of the cylindrical printed product during its rotation.

[0063] Specifically, Figure 5-Figure 7As shown, the clamping rotating component 60 includes a motor 61 and two symmetrical mounting circular plates 63. The motor 61 is a kind of servo motor. The motor 61 is fixed at one end of the support plate 20, and its output end is aligned with the center of the cylinder 30. The output end of the motor 61 is fixed with a rotating shaft 62 that penetrates the two mounting circular plates 63. The rotating shaft 62 is located at the center of the two mounting circular plates 63. The rotating shaft 62 is fixedly connected to the two mounting circular plates 63 at the penetration point, and can rotate with the two mounting circular plates 63 when rotating;

[0064] A bidirectional screw 64 is rotatably connected between the two mounting circular plates 63, a second motor 66 is fixed at one end of one of the mounting circular plates 63, the output end of the second motor 66 is fixedly connected to the bidirectional screw 64, the power line on the second motor 66 passes through and is fixed to a placement ring installed on one side of the cylinder 30, the placement ring rotates on one side of the cylinder 30, so that the power line of the second motor 66 will not be entangled during the rotation process;

[0065] Two symmetrical moving plates 65 are provided on the outer surface of the bidirectional screw 64. The moving plates 65 are threadedly connected to the bidirectional screw 64. The rotation of the bidirectional screw 64 can make the two moving plates 65 move towards each other or in opposite directions.

[0066] Next, the ends of the two moving plates 65 that are away from each other are both rotated with a grooved disc 69, the grooved disc 69 is embedded on the moving plate 65 and is rotatably connected to the moving plate 65, the ends of the two grooved discs 69 that are close to each other are both fixed with a clamping disc 610, the two clamping discs 610 are used to clamp cylindrical printed products, and the ends of the two clamping discs 610 that are away from each other are both fixed with a clamping shaft 67, and the cross-sectional shape of the clamping shaft 67 is a circle with two protrusions;

[0067] The ends of the two mounting circular plates 63 that are close to each other are both rotatably connected with the grooved circular plate 2 612, which is embedded in the mounting circular plate 63 and rotatably connected with the mounting circular plate 63. The ends of the two grooved circular plates 612 that are far away from each other are both fixed with a gear 1 68, which meshes with the gear ring 40 on the same side. When the mounting circular plate 63 rotates, the gear 1 68 cooperates with the gear ring 40 to rotate the gear 1 68;

[0068] The positioning shaft 67 sequentially passes through the groove disc 1 69, the groove disc 2 612 and the gear 1 68 on the same side, so that when the gear 1 68 rotates, the positioning shaft 67 causes the groove disc 2 612 and the groove disc 1 69 to rotate, thereby causing the clamping circular plate 610 to rotate, and the cylindrical printed matter clamped between the two clamping circular plates 610 will also rotate accordingly;

[0069] During the rotation of the bidirectional screw 64, the two moving plates 65 move toward each other, so that the two clamping circular plates 610 can clamp the cylindrical printed matter. Then, the rotating mounting circular plate 63 causes the gear 1 68 to rotate under the action of the gear ring 40, and the groove circular plate 2 612 and the groove circular plate 1 69 connected by the positioning shaft 67 rotate, thereby rotating the clamping circular plate 610. The rotation of the two clamping circular plates 610 can rotate the clamped cylindrical printed matter, so that the surface of the cylindrical printed matter can be quickly inspected, thereby improving the efficiency of the inspection.

[0070] Among them, a cleaning rod 611 is fixed between the two mounting circular plates 63. The cleaning rod 611 is fixed between the two mounting circular plates 63 by a fixing rod and is located at the lower side of the clamped cylindrical printed matter. During the rotation of the cylindrical printed matter, the cleaning rod 611 can clean impurities on the surface of the cylindrical printed matter to prevent impurities on the surface of the cylindrical printed matter from affecting the accuracy of detection.

[0071] Further, if Figure 8 and Fig. 9 As shown, the swing component 70 includes a U-shaped frame 71 fixed to one end of the support plate 20, two horizontal parts of the U-shaped frame 71 are fixedly connected to the support plate 20, and the inner cavity of the U-shaped frame 71 is rotatably connected to a second gear 72, and a rotating plate 73 is fixed on the connecting shaft of the second gear 72. The rotating plate 73 and the second gear 72 are coaxial, so that the rotating plate 73 rotates with the rotation of the second gear 72, and the center of the second gear 72 is on the same line as the center of the rotating shaft 62, so that the rotation of the rotating plate 73 is based on the center of the mounting circular plate 63, and a detection head 74 is fixed to one end of the rotating plate 73 through a connecting column;

[0072] Among them, as the rotating plate 73 rotates around the center of the mounting circular plate 63, the detection head 74 rotates on the outside of the mounting circular plate 63, and rotates with the rotation of the clamping circular plate 610, so that the detection head 74 can always detect the cylindrical printed matter in the same straight line as the clamped cylindrical printed matter, thereby improving the accuracy of the device detection.

[0073] Further, if Figure 8 and Fig. 9 As shown, the matching component 80 includes a connecting plate 81 fixedly connected to the rotating shaft 62 and a rotating block 85 rotatably connected to the support plate 20, a round rod 82 is fixed to one end of the connecting plate 81, and the round rod 82 is located on the side of one end of the connecting plate 81 away from the rotating shaft 62, and a sliding groove 83 adapted to the round rod 82 is opened at one end of the rotating block 85, so that the round rod 82 can slide in the inner cavity of the sliding groove 83 during the rotation process, and an arc-shaped tooth plate 84 is fixed to one end of the rotating block 85, and the center of rotation of the arc-shaped tooth plate 84 is the same as the center of rotation of the rotating block 85;

[0074] Then, the arc-shaped toothed plate 84 meshes with the gear 2 72 , and during the reciprocating rotation of the arc-shaped toothed plate 84 , the gear 2 72 can be reciprocated, so that the rotating plate 73 and the detection head 74 can be reciprocated to continuously detect the cylindrical printed matter.

[0075] The cylindrical printed product held by the two clamping circular plates 610 rotates, and the rotating plate 73 rotates with the rotation of the mounting circular plate 63, so that the detection head 74 connected to the rotating plate 73 can follow the rotating cylindrical printed product, and the outer surface of the cylindrical printed product can be repeatedly detected, thereby improving the detection accuracy of the device.

[0076] Embodiment 3

[0077] This embodiment further defines the missing print collecting component 50 on the basis of the first and second embodiments, so as to achieve the purpose of separately collecting the missing prints after inspecting the cylindrical prints.

[0078] Specifically, Fig.10 As shown, the missing print collecting component 50 includes a collecting box 51, one end of which is fixed with two symmetrical straight plates 52, a feed plate 55 is rotatably connected between the two straight plates 52, the side of the feed plate 55 away from the collecting box 51 is an arc surface adapted to the cylindrical printed matter, and both ends of the feed plate 55 are fixed with a stopper 54, and the two stoppers 54 are used to stop the cylindrical printed matter rolling down from the feed plate 55 so that it can enter the inner cavity of the collecting box 51;

[0079] A motor 3 53 for controlling the rotation of the blanking plate 55 is fixed to one end of one of the straight plates 52, and the motor 3 53 is electrically connected to the detection head 74;

[0080] A collecting frame is placed on the lower side of the clamping rotating member 60 for collecting cylindrical printed products without missing prints;

[0081] When the detection head 74 detects the invisible printing mark and the cylindrical printed product is located at the curved surface of the blanking plate 55, the motor three 53 will rotate the blanking plate 55, so that the cylindrical printed product in the clamping rotating component 60 continues to rotate. When the cylindrical printed product in the clamping rotating component 60 is located on the upper side of the collection frame, the two movable plates 65 move in opposite directions, so that the cylindrical printed product is loosened and falls into the collection frame. When the detection head 74 does not detect the invisible printing mark and the cylindrical printed product is located at the curved surface of the blanking plate 55, the two movable plates 65 move in opposite directions, so that the cylindrical printed product rolls along the surface of the blanking plate 55 into the inner cavity of the collection box 51.

[0082] It should be noted that the detection head 74 can control the operation of the motor 2 66 and the motor 3 53 to sort the cylindrical printed matter.

[0083] It should be noted that the motor three 53, motor one 61, bidirectional screw 64, motor two 66, detection head 74 and detector 94 in the present invention are all prior arts, and their installation methods and control methods are also conventional designs, which will not be elaborated in detail in the present invention.

[0084] Working principle of the present invention: When the device is used, firstly, a cylindrical printed product is put into the inner cavity of the U-shaped frame 93 from the feeding port on the U-shaped frame 93, and then the hydraulic cylinder 91 pushes the cylindrical printed product to move, and when it moves to between the two detectors 94, it is blocked by the block at the output end of the electric push rod 98, so that the two detectors 94 perform invisible printing mark detection on both ends of the cylindrical printed product;

[0085] Next, when the invisible printing mark is detected, the two electric push rods 95 move with the connected baffles 97 to open the gap between the feeding plate 96 and the mounting plate 92, so that the cylindrical printed product falls into the inner cavity of the box 10 for collection. When no invisible printing mark is detected, the block at the output end of the electric push rod 98 moves upward, and the hydraulic cylinder 91 continues to push the cylindrical printed product to move toward the arc surface of the upper feeding plate 96;

[0086] Then, if Fig.12 As shown, the motor 1 61 drives the two mounting circular plates 63 to rotate through the rotating shaft 62, so that the two clamping circular plates 610 correspond to the cylindrical printed matter on the arc surface of the feeding plate 96. At this time, the two mounting circular plates 63 stop rotating, and then the motor 2 66 drives the two moving plates 65 to move toward each other, so that the two clamping circular plates 610 clamp the cylindrical printed matter under the action of the moving plates 65;

[0087] Then, the two mounting circular plates 63 continue to rotate. During the rotation of the two mounting circular plates 63, the two gears 1 68 rotate under the action of the gear ring 40 on the same side, and the grooved circular plate 2 612 and the grooved circular plate 1 69 through which the positioning shaft 67 passes make the clamping circular plates 610 fixed by the two grooved circular plates 1 69 rotate, thereby making the cylindrical printed matter clamped by the two clamping circular plates 610 rotate;

[0088] At the same time, when the rotating shaft 62 rotates with the two mounting circular plates 63, the rotating shaft 62 will also rotate with the connecting plate 81, so that the round rod 82 fixed on the connecting plate 81 pushes the rotating block 85 to rotate, so that the arc-shaped toothed plate 84 rotates with the gear 2 72, and when the gear 2 72 rotates, the rotating plate 73 rotates with the detection head 74, and the detection head 74 always keeps in the same straight line with the clamping circular plate 610 during the rotation of the clamping circular plate 610, and can repeatedly detect the rotating surface of the clamping circular plate 610, which not only improves the detection efficiency of the device, but also improves the detection accuracy of the device;

[0089] Then the cylindrical printed product continues to rotate with the rotation of the two mounting circular plates 63. At the same time, under the action of the connecting plate 81 and the circular rod 82 rotating, the arc-shaped tooth plate 84 starts to reciprocate, so that the detection head 74 also reciprocates to detect the next cylindrical printed product.

[0090] Then, if Fig.11 As shown, when the cylindrical printed matter is located on the arc surface of the blanking plate 55, the two mounting circular plates 63 stop rotating to detect whether the missing printing is finished. At this time, the cylindrical printed matter can be sorted. When the detection head 74 detects the invisible printing mark, the cylindrical printed matter is located on the arc surface of the blanking plate 55, and the motor 3 53 will drive the blanking plate 55 to rotate, and no longer block the rotation of the clamping rotating component 60, so that the cylindrical printed matter clamped by the two clamping circular plates 610 continues to rotate. When the cylindrical printed matter in the clamping rotating component 60 is located on the upper side of the collection frame, the two moving plates 65 move in opposite directions, so that the cylindrical printed matter is loosened and falls into the collection frame, and the collection frame collects the cylindrical printed matter without missing printing;

[0091] When the detection head 74 does not detect the invisible printing mark and the cylindrical printed product is located on the curved surface of the blanking plate 55, the two movable plates 65 move in opposite directions, causing the cylindrical printed product to roll along the surface of the blanking plate 55 into the inner cavity of the collecting box 51, and the collecting box 51 collects the missed cylindrical printed product.

[0092] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes to the invisible printing product missing printing detection device and the inventive concept according to the technology of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for detecting missing prints of invisible printed products, comprising a housing (10) and two symmetrical support plates (20), characterized in that: A detection component (90) is fixed to the upper end of the box body (10), a cylinder (30) is fixed to the ends of the two support plates (20) close to each other, a gear ring (40) is fixed to the outer surface of the two cylinders (30), a clamping rotating component (60) is installed on the ends of the two cylinders (30) close to each other for common rotation, a swing component (70) and a matching component (80) are installed on one end of one of the support plates (20), and a missing print collecting component (50) is installed on one side of the clamping rotating component (60); The clamping rotating component (60) comprises a motor 1 (61) and two mounting circular plates (63), a rotating shaft (62) is fixed to the output end of the motor 1 (61), a bidirectional screw (64) is rotatably connected between the two mounting circular plates (63), two symmetrical moving plates (65) are provided on the outer surface of the bidirectional screw (64), a groove disc 1 (69) is rotatably provided on the two moving plates (65), a clamping circular plate (610) is fixed to one end of the two groove discs 1 (69) close to each other, a positioning shaft (67) is fixed to the two clamping circular plates (610), a groove disc 2 (612) is rotatably connected to the two mounting circular plates (63), and a gear 1 (68) is fixed to the two groove discs 2 (612); The rotating mounting circular plate (63) causes the gear 1 (68) to rotate under the action of the gear ring (40), and the groove circular plate 2 (612) and the groove circular plate 1 (69) connected by the locking shaft (67) rotate, thereby causing the clamping circular plate (610) to rotate. The rotation of the two clamping circular plates (610) can cause the clamped cylindrical printed matter to rotate, so that the surface of the cylindrical printed matter can be quickly inspected, thereby improving the inspection efficiency.

2. The invisible printing product detection and missing printing device according to claim 1, characterized in that: A second motor (66) is fixed to one end of one of the mounting circular plates (63), and an output end of the second motor (66) is fixedly connected to a bidirectional screw rod (64).

3. The invisible printing product detection and missing printing device according to claim 1, characterized in that: The gear one (68) is meshed with the gear ring (40) on the same side, and the positioning shaft (67) passes through the groove disc one (69), the groove disc two (612) and the gear one (68) on the same side in sequence.

4. The invisible printing product detection and missing printing device according to claim 1, characterized in that: A cleaning rod (611) is fixed between the two mounting circular plates (63).

5. The invisible printing product detection and missing printing device according to claim 1, characterized in that: The swing component (70) comprises a U-shaped frame (71) fixed to one end of the support plate (20); the inner cavity of the U-shaped frame (71) is rotatably connected to a second gear (72); a rotating plate (73) is fixed on the connecting shaft of the second gear (72); and a detection head (74) is fixed to one end of the rotating plate (73) via a connecting column.

6. The invisible printing product detection and missing printing device according to claim 5, characterized in that: The matching component (80) comprises a connecting plate (81) fixedly connected to the rotating shaft (62) and a rotating block (85) rotatably connected to the supporting plate (20); a round rod (82) is fixed to one end of the connecting plate (81); a sliding groove (83) adapted to the round rod (82) is provided at one end of the rotating block (85); and an arc-shaped toothed plate (84) is fixed to one end of the rotating block (85).

7. The invisible printing product detection and missing printing device according to claim 6, characterized in that: The arc-shaped tooth plate (84) meshes with the second gear (72).

8. The invisible printing product detection and missing printing device according to claim 1, characterized in that: The detection component (90) comprises a mounting plate (92) and a hydraulic cylinder (91); a U-shaped frame (93) is fixed on the outside of the mounting plate (92); detectors (94) are fixed on both ends of the U-shaped frame (93); and an electric push rod (98) is fixed on the upper end of the U-shaped frame (93).

9. The invisible printing product detection and missing printing device according to claim 8, characterized in that: A loading plate (96) is fixed to the side of the inner cavity of the U-shaped frame (93) away from the mounting plate (92), electric push rods (95) are fixed to both ends of the U-shaped frame (93), and baffles (97) are fixed to the output ends of the two electric push rods (95).

10. The invisible printing product detection and missing printing device according to claim 1, characterized in that: The missed print collecting component (50) comprises a collecting box (51), one end of which is fixed with two symmetrical straight plates (52), a material discharge plate (55) is rotatably connected between the two straight plates (52), both ends of the material discharge plate (55) are fixed with retaining frames (54), and one end of one of the straight plates (52) is fixed with a motor three (53) for controlling the rotation of the material discharge plate (55).

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