A label inspection apparatus, a label inspection system, and a label inspection method

Abstract

The application discloses a label inspection device, a label inspection system and a label inspection method, and relates to the technical field of intelligent manufacturing. The label inspection device comprises a base, a detection jig, a marking mechanism and a cover mechanism. The base is provided with a label slot. The detection jig is provided with a marking slide rail, a first label clamping plate and a second label clamping plate. The first label clamping plate and the second label clamping plate are slidably arranged along the marking slide rail. The marking mechanism is installed on the detection jig and is used for marking the position information of the first label clamping plate and the second label clamping plate on the marking slide rail. The label inspection device can effectively avoid errors caused by manual observation, and the consistency of the label inspection standard is realized. In addition, the label inspection device can intuitively observe the label deflection, facilitate targeted adjustment of the installation position of the label paper, improve the adjustment efficiency of the label paper, and further improve the label printing efficiency.

Description

Technical Field

[0001] This invention relates to the field of intelligent manufacturing technology, and in particular to a label inspection device for inspecting labels. Furthermore, this invention also relates to a label inspection system including the aforementioned label inspection device and a label inspection method applied to the aforementioned label inspection system. Background Technology

[0002] In the field of smart manufacturing, various labels are required. The accuracy of these labels directly affects product quality and customer satisfaction, thus influencing the user's overall experience. For bulk-printed labels, if a label fails to meet appearance requirements, the entire batch of printed labels will be scrapped, increasing label costs.

[0003] Label accuracy is divided into the accuracy of label content and the accuracy of appearance. The accuracy of label content means that the text, icons, and other content in the label meet the product requirements. The accuracy of appearance means that the printed label content must meet the appearance inspection standards, such as blurry text or offset text and icons. The appearance of offset label content is generally inspected visually. Visual inspection depends on the experience of the inspectors, and there are differences in the senses of different inspectors, which leads to poor consistency in label quality. This can easily result in products that do not meet the appearance requirements being released, causing customer complaints.

[0004] Label printing misalignment usually occurs when replacing labels and ribbons. The correctness of the label and ribbon installation position in the printer directly affects whether the printed label is misaligned. After the equipment personnel have maintained the equipment and met the appearance requirements, misalignment will generally not occur.

[0005] In summary, how to provide a label inspection device that can verify the correctness of label display is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a label inspection device that can inspect the correctness of label display, so as to facilitate the adjustment of the label paper installation position and improve the installation accuracy of the label paper.

[0007] Furthermore, another object of the present invention is to provide a label inspection system including the above-described label inspection device and a label inspection method applied to the above-described label inspection system.

[0008] To address the aforementioned technical problems, the present invention provides a label inspection device, comprising:

[0009] The base has a label slot for placing the label to be tested;

[0010] The testing fixture is fixedly installed on the base, and the testing fixture is provided with a marking slide rail, a first label clamping plate and a second label clamping plate, both of which can be slidably disposed along the marking slide rail;

[0011] A marking mechanism is installed on the detection fixture, and the marking mechanism is used to mark the position information of the first label clamp and the second label clamp on the marking slide rail;

[0012] The upper cover mechanism is disposed on the upper surface of the detection fixture, and the upper cover mechanism is provided with an observation window for observing the position of the label in the label slot.

[0013] On one hand, the testing fixture includes:

[0014] The slide rail mounting base is provided with a positioning groove for fixing the marked slide rail;

[0015] The marking slide rail is installed in the positioning groove of the slide rail mounting base to restrict the axial movement of the marking slide rail;

[0016] At least two sets of slider connectors are mounted on the marking slide rail and slidably disposed along the marking slide rail. The first label clamp is mounted on one set of slider connectors, and the second label clamp is mounted on the other set of slider connectors.

[0017] The marking mechanism includes a position marker disposed on the marking slide rail, the position marker being used to display the axial position information of the first label clamp and the second label clamp on the marking slide rail.

[0018] On the other hand, the marking mechanism also includes:

[0019] A display mechanism is disposed on the slide rail mounting base, and the display mechanism is used to display the position information of the first label clamp and the second label clamp on the marking slide rail;

[0020] The transmission mechanism includes a rotating component, a conversion assembly connected to the rotating component, a linear encoder connected to the rotating component, and a first controller. The conversion assembly converts the movement of the slider connector into the rotation of the rotating component. The linear encoder acquires the rotation information of the rotating component and transmits the rotation information to the first controller. The first controller obtains the position information of the slider connector based on the rotation information and transmits the position information to the display mechanism, controlling the display mechanism to display the position information.

[0021] On the other hand, the detection fixture also includes an imaging component, which is used to acquire image information of the first label clamp, the second label clamp, and the label, and send the image information to the first controller. The first controller obtains the position image information of the label based on the image information, and sends the position image information to the display mechanism to control the display mechanism to display the position image information.

[0022] On the other hand, the slider connector is equipped with a pull rod that extends out of the upper cover mechanism; or, the detection fixture further includes a power component for moving the slider connector along the marking slide rail, the power component being connected to the first controller so that the power component can be started and stopped by the first controller.

[0023] The conversion component includes a rack disposed on the slider connector, and the rotating component is a gear that meshes with the rack for transmission;

[0024] The slide rail mounting base includes a first mounting base disposed on the lower side of the marking slide rail and a second mounting base disposed on the upper side of the marking slide rail, and the positioning groove includes a first recess disposed on the first mounting base and a second recess disposed on the second mounting base;

[0025] The upper cover mechanism is detachably mounted on the upper surface of the slide rail mounting base. The upper cover mechanism is provided with a slide groove extending along the moving direction of the pull rod, and the pull rod extends out of the upper cover mechanism through the slide groove.

[0026] The slide groove includes a first branch slide groove and a second branch slide groove arranged opposite to each other, with the first branch slide groove parallel to the second branch slide groove; or, the slide groove includes a first branch slide groove, a second branch slide groove, a third branch slide groove, and a fourth branch slide groove, with the first branch slide groove parallel to the second branch slide groove, the third branch slide groove parallel to the fourth branch slide groove, and the distance between the first branch slide groove and the second branch slide groove being equal to the distance between the third branch slide groove and the fourth branch slide groove; or, the slide groove is a square annular structure.

[0027] The upper cover mechanism is provided with a handle for easy transfer; the side surface of the slide rail mounting base is provided with a handle for easy transfer.

[0028] The base is provided with a slot communicating with the label slot, and at least one side of the label slot is provided with the slot to facilitate the picking and placing of the label.

[0029] On the other hand, the label inspection device also includes a third label clamp and a fourth label clamp;

[0030] The slide rail mounting base includes a first positioning groove, a second positioning groove, a third positioning groove, and a fourth positioning groove, wherein the setting height of the third positioning groove and the fourth positioning groove is higher than the setting height of the first positioning groove and the second positioning groove;

[0031] The marking slide rail includes a first marking slide rail and a second marking slide rail. The first marking slide rail is installed in the first positioning groove and the second positioning groove, and the second marking slide rail is installed in the third positioning groove and the fourth positioning groove. The second marking slide rail is mounted on the upper part of the first marking slide rail, and the axial direction of the first marking slide rail is perpendicular to the axial direction of the second marking slide rail.

[0032] The slider connector includes a first slider connector, a second slider connector, a third slider connector, and a fourth slider connector. The first slider connector and the second slider connector are slidably disposed on the first marking slide rail. The first label clamp is mounted on the first slider connector, and the second label clamp is mounted on the second slider connector. The third slider connector and the fourth slider connector are slidably disposed on the second marking slide rail. The third label clamp is mounted on the third slider connector, and the fourth label clamp is mounted on the fourth slider connector.

[0033] On the other hand, the slide rail mounting base includes a fifth positioning groove, a sixth positioning groove, a seventh positioning groove, and an eighth positioning groove; the fifth positioning groove, the sixth positioning groove, the seventh positioning groove, and the eighth positioning groove are respectively located on the four sides of the same square;

[0034] One of the base and the slide rail mounting base is provided with four positioning recesses, and the other is provided with four positioning protrusions that cooperate with the four positioning recesses. The four positioning recesses are located at four included angles in the same positive direction, so that the slide rail mounting base can be installed on the base after rotating 90° relative to the base.

[0035] A label inspection system includes a label inspection device, a label printing device, and a host computer as described in any one of the above claims, wherein the label printing device is connected to the host computer.

[0036] A label inspection method, applied to the label inspection system described above, the label inspection method comprising:

[0037] Obtain the appearance offset standard corresponding to the label to be inspected;

[0038] The reference features of the label are selected according to the offset standard;

[0039] Obtain the location information corresponding to the reference feature;

[0040] The lowest and highest position information of the reference feature are obtained based on the position information.

[0041] Control the first label clamp to move to the position corresponding to the lowest position information, and control the second label clamp to move to the position corresponding to the highest position information;

[0042] Determine whether the reference feature is located between the position corresponding to the lowest position information and the position corresponding to the highest position information. If yes, the label is within the appearance offset standard in the current detection direction; otherwise, the label is outside the appearance offset standard in the current detection direction.

[0043] On the one hand, after the label is located outside the appearance offset standard in the current detection direction, it also includes:

[0044] The first label clamp is controlled to move in a direction less than the position corresponding to the lowest position information, and the second label clamp is controlled to move in a direction greater than the position corresponding to the highest position information, until the reference feature is located within the position range between the first label clamp and the second label clamp;

[0045] Obtain the current position information corresponding to the current reference feature;

[0046] The offset position information of the reference feature is obtained based on the current position information, the lowest position information, and the highest position information;

[0047] The installation position of the label paper in the label printing device is adjusted according to the offset position information.

[0048] As can be seen from the above technical solution, the label inspection device provided by the present invention, in actual use, first requires assembling the label inspection device, then placing the label into the label slot. At this time, the position coordinates of the label in the marking mechanism are the same as the position coordinates of the label in the label printing device. The appearance offset standard corresponding to the label to be inspected is obtained, and the reference feature of the label is selected according to the offset standard. The position information corresponding to the reference feature is obtained, and the lowest and highest position information of the reference feature are obtained based on the position information. The first label clamp is moved to the position corresponding to the lowest position information, and the second label clamp is moved to the position corresponding to the highest position information. If the reference feature is located between the position corresponding to the lowest position information and the position corresponding to the highest position information, the label is within the appearance offset standard in the current inspection direction, meeting the requirements. If the reference feature is not located between the position corresponding to the lowest position information and the position corresponding to the highest position information, the label is outside the appearance offset standard in the current inspection direction, not meeting the requirements, and the installation position of the label paper in the label printing device needs to be adjusted.

[0049] The beneficial effects of this invention are as follows: It provides a label inspection device that can inspect labels, effectively avoiding errors caused by human observation, achieving consistency in label inspection standards, and effectively preventing inspection errors caused by different observers or different states of the same observer during human observation. In addition, the label inspection device allows for direct observation of label skew, facilitating targeted adjustments to the label paper's installation position, which improves the efficiency of label paper adjustment and thus label printing efficiency. Furthermore, the label inspection device provided by this invention has a simple structure and is easy to operate.

[0050] In addition, the present invention also provides a label inspection system including the above-mentioned label inspection device and a label inspection method applied to the above-mentioned label inspection system. Attached Figure Description

[0051] To more clearly illustrate the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0052] Figure 1 This is a schematic diagram of the structure of the base provided by the present invention;

[0053] Figure 2 For label installation Figure 1 Schematic diagram of the middle base;

[0054] Figure 3 This is a schematic diagram of the structure of the testing fixture and marking mechanism;

[0055] Figure 4 for Figure 3 A bottom view of the testing fixture and marking mechanism;

[0056] Figure 5 This is a top view of the first mounting base;

[0057] Figure 6 This is a bottom view of the first mounting bracket;

[0058] Figure 7 A structural schematic diagram of the slide rail and its mounting components;

[0059] Figure 8 for Figure 7 A structural schematic diagram of the center-marked slide rail and its mounting components from another angle;

[0060] Figure 9 This is a schematic diagram of a linear encoder.

[0061] Figure 10 A schematic diagram of the slide rail structure;

[0062] Figure 11 This is a schematic diagram of the slider connector structure;

[0063] Figure 12 This is a top view of the second mounting bracket;

[0064] Figure 13 This is a bottom view of the second mounting bracket;

[0065] Figure 14 This is a top view of the upper cover mechanism;

[0066] Figure 15 This is a bottom-view schematic diagram of the upper cover mechanism;

[0067] Figure 16 This is a schematic diagram of the label inspection device in its first operational state.

[0068] Figure 17 for Figure 16 A schematic diagram of the label inspection device after the top cover mechanism has been removed;

[0069] Figure 18 This is a schematic diagram of the label inspection device in its second operating state.

[0070] Figure 19 for Figure 18 A schematic diagram of the label inspection device after the top cover mechanism has been removed;

[0071] Figure 20 This is a schematic diagram of the label inspection process.

[0072] Figure 21 This is a schematic diagram showing the inspection results of the label inspection device.

[0073] Figure 22 This is a flowchart illustrating the label inspection method.

[0074] Figures 1 to 22 middle:

[0075] 1-Base;

[0076] 11-Label groove, 12-Upper slot, 13-Lower slot, 14-Positioning recess;

[0077] 2-Detection fixture;

[0078] 21-Slide rail mounting base, 211-First mounting base, 2111-Positioning protrusion, 2112-First screw hole, 2113-First positioning hole, 2114-First recess; 212-Second mounting base, 2121-First positioning post, 2122-Second positioning hole, 2123-Second screw hole, 2124-Second recess, 2125-Handle;

[0079] 22- Marking the slide rail;

[0080] 23-Slider connector, 231-Pull rod, 232-Connecting rod, 233-Mounting hole, 234-Connecting screw, 235-Insertion hole, 236-Third screw hole;

[0081] 24 - First label holder;

[0082] 25 - Second label holder;

[0083] 3-Marking mechanism;

[0084] 31-Display mechanism, 32-Position marker, 33-Linear encoder;

[0085] 4-Upper cover mechanism;

[0086] 41-Slide groove, 42-Handle, 43-Second positioning post, 44-Observation window;

[0087] 5-label;

[0088] 51 - Label separator. Detailed Implementation

[0089] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present invention.

[0090] The label inspection device mentioned in this application can be applied to the field of intelligent manufacturing technology, specifically, the field of server manufacturing technology, or the field of manufacturing other intelligent devices.

[0091] This specific embodiment discloses a label inspection device, including a base 1, a testing fixture 2, a marking mechanism 3, and a top cover mechanism 4. The base 1 is provided with a label slot 11 for placing the label 5 to be inspected. The testing fixture 2 is fixedly installed on the base 1 and is provided with a marking slide rail 22, a first label clamping plate 24, and a second label clamping plate 25. The first label clamping plate 24 and the second label clamping plate 25 can be slidably arranged along the marking slide rail 22. The marking mechanism 3 is installed on the testing fixture 2 and is used to mark the position information of the first label clamping plate 24 and the second label clamping plate 25 on the marking slide rail 22. The top cover mechanism 4 is provided on the upper surface of the testing fixture 2 and is provided with an observation window 44 for observing the position of the label 5 in the label slot 11.

[0092] like Figure 1 As shown, a slot communicating with the label slot 11 can be provided in the base 1, and at least one side of the label slot 11 is provided with a slot to facilitate the taking and placing of the label 5; specifically, an upper slot 12 can be provided on the upper side of the label slot 11, and a lower slot 13 can be provided on the lower side of the label slot 11.

[0093] In the actual use of the label inspection device provided in this specific embodiment, the label inspection device first needs to be assembled. Then, the label 5 is placed into the label slot 11. At this time, the position coordinates of the label 5 in the marking mechanism 3 are the same as the position coordinates of the label 5 in the label printing device. The appearance offset standard corresponding to the label 5 to be inspected is obtained, and the reference feature of the label 5 is selected according to the offset standard. The position information corresponding to the reference feature is obtained, and the lowest position information and the highest position information of the reference feature are obtained according to the position information. The first label clamp 24 is moved to the position corresponding to the lowest position information, and the second label clamp 25 is moved to the position corresponding to the highest position information. If the reference feature is located between the position corresponding to the lowest position information and the position corresponding to the highest position information, then the label 5 is within the appearance offset standard in the current detection direction, which meets the requirements. If the reference feature is not located between the position corresponding to the lowest position information and the position corresponding to the highest position information, then the label 5 is outside the appearance offset standard in the current detection direction, which does not meet the requirements, and the installation position of the label paper in the label printing device needs to be adjusted.

[0094] This specific embodiment provides a label inspection device that can inspect label 5, effectively avoiding errors caused by human observation and achieving consistency in label 5 inspection standards. It effectively avoids inspection errors caused by different observers or different states of the same observer during human observation. Furthermore, the label inspection device allows for direct observation of label 5's skewness, facilitating targeted adjustments to the label paper's installation position, improving label paper adjustment efficiency, and consequently, label 5 printing efficiency. In addition, the label inspection device provided by this invention has a simple structure and is easy to operate.

[0095] It should be noted that, through prior design, the position coordinates of label 5 after it is placed into label slot 11 can be made consistent with the position of label 5 in the label printing device. For example, if label 5 is at position (0, 5) on the first axis of the coordinate system in the printing device, after label 5 is placed into label slot 11, label 5 will be at position (0, 5) in the coordinate system where position mark 32 is located.

[0096] Based on the above embodiments, the detection fixture 2 can include a slide rail mounting base 21, a marking slide rail 22, and at least two sets of slider connectors 23; wherein the slide rail mounting base 21 is provided with a positioning groove for fixing the marking slide rail 22; the marking slide rail 22 is installed in the positioning groove of the slide rail mounting base 21 to limit the axial movement of the marking slide rail 22; at least two sets of slider connectors 23 are installed on the marking slide rail 22 and slidably disposed along the marking slide rail 22, a first label clamp 24 is installed on one set of slider connectors 23, and a second label clamp 25 is installed on the other set of slider connectors 23; the marking mechanism 3 includes a position mark 32 disposed on the marking slide rail 22, the position mark 32 being used to display the axial position information of the first label clamp 24 and the second label clamp 25 on the marking slide rail 22.

[0097] In actual use, by moving the first label clamp 24 and the second label clamp 25 on the marking slide rail 22, the first label clamp 24 can be moved to the upper limit position of the offset standard corresponding to the reference feature in the label 5, and the second label clamp 25 can be moved to the lower limit position of the offset standard corresponding to the reference feature in the label 5. When the reference feature is between the upper limit position and the lower limit position, it means that the reference feature meets the offset standard requirements. When the reference feature is not between the upper limit position and the lower limit position, it means that the reference feature does not meet the offset standard requirements.

[0098] It should be noted that, such as Figure 3 , Figure 4 As shown, two marking rails 22 are typically set, and the two marking rails 22 are parallel and spaced apart, such as... Figure 11As shown, the slider connector 23 includes two sliders, each with a insertion hole 235. A marking slide rail 22 is inserted into the insertion hole 235. One side of each slider has a mounting hole 233, at which a pull rod 231 is mounted. The pull rod 231 extends out of the upper cover mechanism 4, allowing the slider connector 23 to move relative to the marking slide rail 22 during actual use. The sliders of the slider connector 23 have a third screw hole 236, which, in conjunction with... Figure 7 It can be seen that the connecting screw 234 fixes the first label clamp 24 to the slider connector 23 through the third screw hole 236.

[0099] Of course, the testing fixture 2 may also include a power component for moving the slider connector 23 along the marking slide rail 22. The power component is connected to the first controller so that the power component can be started and stopped by the first controller, thereby realizing the automatic movement or automatic stop of the slider connector 23 relative to the marking slide rail 22.

[0100] like Figure 10 As shown, the marking slide rail 22 is provided with position marks 32. In actual use, the positions of the first label clamp 24 and the second label clamp 25 can be determined by the position marks 32 on the marking slide rail 22 corresponding to the first label clamp 24 and the second label clamp 25.

[0101] In this specific embodiment, by setting position markers 32 on the marking slide rail 22, the positions of the first label clamp 24 and the second label clamp 25 on the marking slide rail 22 can be marked, thereby reading the position information of the first label clamp 24 and the second label clamp 25 on the marking slide rail 22; the operation process is convenient and low cost.

[0102] In one specific embodiment, the marking mechanism 3 may further include a display mechanism 31 and a transmission mechanism. The display mechanism 31 is disposed on the slide rail mounting base 21 and is used to display the position information of the first label clamp 24 and the second label clamp 25 on the marking slide rail 22. The transmission mechanism includes a rotating component, a conversion component connected to the rotating component, a linear encoder 33 connected to the rotating component, and a first controller. The conversion component is used to convert the movement of the slider connector 23 into the rotation of the rotating component. The linear encoder 33 is used to acquire the rotation information of the rotating component, including the number of rotations and the rotation direction, and transmit the rotation information to the first controller. The first controller obtains the position information of the slider connector 23 based on the rotation information and transmits the position information to the display mechanism 31, controlling the display mechanism 31 to display the position information.

[0103] In actual use, the conversion component can include a rack set on the slider connector 23, and the rotating component is a gear that meshes with the rack for transmission. When the slider connector 23 slides along the marked slide rail 22, it will drive the rack in the conversion component to move. During the movement, the rack drives the gear to rotate. The gear is connected to the linear encoder 33. The linear encoder 33 obtains the transmission information of the gear. The first controller obtains the moving direction and moving distance of the slider connector 23 relative to the marked slide rail 22 based on the rotation information. Combined with the nearest previous position of the slider connector 23, the current position information of the slider connector 23 can be obtained. The first controller transmits the current position information of the slider connector 23 to the display mechanism 31. The display mechanism 31 is used to display the current position information of the slider connector 23.

[0104] It should be noted that the display mechanism 31 can be configured as a display, used only to display the position coordinates of the corresponding first label holder 24 or second label holder 25, or it can be used to display image information of the marking slide rail 22, the first label holder 24 or the second label holder 25, so that the position information of the first label holder 24 or the second label holder 25 on the marking slide rail 22 can be observed intuitively through the image. The specific determination depends on the actual situation and will not be elaborated here.

[0105] The linear encoder 33 mentioned in this specific embodiment can be a wireless linear encoder 33, or other linear encoder 33 that meets the requirements, depending on the actual situation.

[0106] In this specific embodiment, by setting the display mechanism 31, the position information of the first label clamp 24 or the second label clamp 25 on the marking slide rail 22 can be displayed intuitively, avoiding the operation of observing the position of the first label clamp 24 or the second label clamp 25 on the marking slide rail 22 through the upper cover mechanism 4, and further simplifying the inspection steps.

[0107] Based on the above embodiments, in order to more intuitively observe the position information of the first label clamp 24 or the second label clamp 25 on the label slide rail 22, the detection fixture 2 can also include an imaging component. The imaging component is used to acquire image information of the first label clamp 24, the second label clamp 25 and the label 5, and send the image information to the first controller. The first controller obtains the position image information of the label 5 according to the image information, and sends the position image information to the display mechanism 31, and controls the display mechanism 31 to display the position image information.

[0108] The camera element can be positioned inside the slide rail mounting base 21 for acquiring... Figure 7 The image information showing the relative position of the structure and the label 5 in the label slot 11 of the base 1 is sent to the first controller, which controls the display mechanism 31 to display the image information.

[0109] In this specific embodiment, by setting up an imaging device, the display mechanism 31 can more intuitively observe the position information of the first label clamp 24 or the second label clamp 25 on the marking slide rail 22, and can observe the movement of the first label clamp 24 or the second label clamp 25 on the marking slide rail 22, making the position information of the first label clamp 24 or the second label clamp 25 on the marking slide rail 22 more intuitive and easier to understand, and also facilitating the acquisition of inspection results.

[0110] Based on the above embodiments, the slide rail mounting base 21 may include a first mounting base 211 disposed on the lower side of the marking slide rail 22 and a second mounting base 212 disposed on the upper side of the marking slide rail 22, and the positioning groove may include a first recess 2114 disposed on the first mounting base 211 and a second recess 2124 disposed on the second mounting base 212.

[0111] like Figure 6 As shown, the first mounting base 211 is provided with a positioning protrusion 2111, such as... Figure 1 As shown, the base 1 is provided with a positioning recess 14. During assembly, the positioning protrusion 2111 is inserted into the positioning recess 14 to achieve the installation of the first mounting seat 211 and the base 1. Specifically, the positioning protrusion 2111 can be set at the four included corners of the same square. When installing the first mounting seat 211, the first mounting seat 211 can still be installed after rotating 90°, 180° or 270° relative to the base 1. Figure 5 As shown, the first mounting base 211 is provided with a first recess 2114, such as Figure 13 As shown, the second mounting base 212 is provided with a second recess 2124. During the installation of the marking slide rail 22, the marking slide rail 22 is first installed into the first recess 2114, and then the second mounting base 212 is fastened onto the upper part of the first mounting base 211, so that the second recess 2124 corresponds to the first recess 2114. The marking slide rail 22 is located in the space formed by the first recess 2114 and the second recess 2124. Figure 5 As shown, the first mounting base 211 is provided with a first positioning hole 2113, such as Figure 13 As shown, the second mounting base 212 is provided with a first positioning post 2121. During actual installation, the first positioning post 2121 is inserted into the first positioning hole 2113 and connected to the first screw hole 2112 by screws, thereby achieving fixed installation of the first mounting base 211 and the second mounting base 212. Specifically, the first positioning holes 2113 can be located at the four included corners of the same square. When installing the second mounting base 212, the second mounting base 212 can still be installed after rotating 90°, 180°, or 270° relative to the first mounting base 211. Figure 12 , Figure 13As shown, the second mounting base 212 is provided with a second screw hole 2123 and a second positioning hole 2122, as follows: Figure 12 As shown, there are eight second positioning holes 2122, which are respectively Figure 12 The positions corresponding to A, B, C, D, E, F, G, and H in the diagram, such as... Figure 15 As shown, the upper cover mechanism 4 is provided with four second positioning posts 43. In actual use, the four second positioning posts 43 of the upper cover mechanism 4 can be inserted into the four second positioning holes 2122 of A, B, C, and D, or the four second positioning posts 43 of the upper cover mechanism 4 can be inserted into the four second positioning holes 2122 of E, F, G, and H, so as to facilitate the inspection of the label 5 in different directions.

[0112] like Figure 13 As shown, the second mounting base 212 is provided with a second screw hole 2123. In actual installation, the screw passes through the upper cover mechanism 4 and connects to the second screw hole 2123 to achieve the fixed installation of the upper cover mechanism 4 and the second mounting base 212.

[0113] like Figure 14 , Figure 15 As shown, the upper cover mechanism 4 is equipped with a handle 42 for easy transfer; as Figure 12 , Figure 13 As shown, the side surface of the slide rail mounting base 21 is provided with a handle 2125 for easy transfer.

[0114] like Figure 14 , Figure 15 As shown, the upper cover mechanism 4 is detachably mounted on the upper surface of the slide rail mounting base 21. The upper cover mechanism 4 is provided with a slide groove 41 extending along the moving direction of the pull rod 231. The pull rod 231 passes through the slide groove 41 and extends out of the upper cover mechanism 4.

[0115] Specifically, the slide 41 can be configured to include a first branch slide and a second branch slide that are arranged opposite to each other, with the first branch slide parallel to the second branch slide; or, the slide 41 includes a first branch slide, a second branch slide, a third branch slide, and a fourth branch slide, with the first branch slide parallel to the second branch slide, the third branch slide parallel to the fourth branch slide, and the distance between the first branch slide and the second branch slide equal to the distance between the third branch slide and the fourth branch slide; or, the slide 41 is a square annular structure.

[0116] Of course, depending on the actual situation, the groove 41 can also be set to other shapes or numbers, which will be determined according to the actual situation and will not be elaborated here.

[0117] In this specific embodiment, by detachably connecting the upper cover mechanism 4 and the slide rail mounting base 21, the installation angle of the upper cover mechanism 4 relative to the slide rail mounting base 21 can be adjusted according to the different directions of the reference features inspected by the label 5, so that the same label inspection device can inspect the label 5 for different directions.

[0118] In one specific embodiment, to enable inspection of label 5 in different directions and avoid repeated disassembly of the inspection fixture 2 during the inspection process, the label inspection device may further include a third label clamp and a fourth label clamp; the slide rail mounting base 21 includes a first positioning groove, a second positioning groove, a third positioning groove, and a fourth positioning groove, the third positioning groove and the fourth positioning groove being set at a height higher than the first positioning groove and the second positioning groove; the marking slide rail 22 includes a first marking slide rail and a second marking slide rail, the two ends of the first marking slide rail being respectively installed in the first positioning groove and the second positioning groove, and the two ends of the second marking slide rail being respectively installed in the third positioning groove and the fourth positioning groove. The second marking slide rail is mounted on the upper part of the first marking slide rail, and the axis of the first marking slide rail is perpendicular to the axis of the second marking slide rail; the slider connector 23 includes a first slider connector, a second slider connector, a third slider connector, and a fourth slider connector. The first and second slider connectors are slidably mounted on the first marking slide rail. The first label clamp 24 is mounted on the first slider connector, and the second label clamp 25 is mounted on the second slider connector. The third and fourth slider connectors are slidably mounted on the second marking slide rail. The third label clamp is mounted on the third slider connector, and the fourth label clamp is mounted on the fourth slider connector.

[0119] In practical use, when it is necessary to inspect the length direction of label 5, the third slider connector can be controlled to move the third label clamp to the clearance position, and the fourth slider connector can be controlled to move the fourth label clamp to the clearance position, so that the third and fourth label clamps will not affect the inspection of label 5 by the second label clamp 25 and the first label clamp 24. Then, the first label clamp 24 is controlled to move to the position corresponding to the lowest position information, and the second label clamp 25 is controlled to move to the position corresponding to the highest position information. If the reference feature is located between the positions corresponding to the lowest and highest positions, then label 5 is within the appearance offset standard in the current inspection direction and meets the requirements. If the reference feature is not located between the positions corresponding to the lowest and highest positions, then label 5 is outside the appearance offset standard in the current inspection direction and does not meet the requirements. The label paper needs to be installed in the label printing equipment. The position is adjusted; when it is necessary to inspect the width direction of label 5, the first slider connector can be controlled to move the first label clamp 24 to the clearance position, and the second slider connector can be controlled to move the second label clamp 25 to the clearance position, so that the first label clamp 24 and the second label clamp 25 will not affect the inspection of label 5 by the third label clamp and the fourth label clamp; then the third label clamp is controlled to move to the position corresponding to the lowest position information, and the fourth label clamp is controlled to move to the position corresponding to the highest position information; if the reference feature is located between the position corresponding to the lowest position information and the position corresponding to the highest position information, then label 5 is within the appearance offset standard in the current inspection direction and meets the requirements; if the reference feature is not located between the position corresponding to the lowest position information and the position corresponding to the highest position information, then label 5 is outside the appearance offset standard in the current inspection direction and does not meet the requirements, and the installation position of the label paper on the label printing equipment needs to be adjusted.

[0120] The label inspection device provided in this specific embodiment can inspect the label 5 from two different directions without disassembling the label inspection device during actual use. The operation process is simple and avoids repeated disassembly and assembly. It can effectively improve the inspection quality and efficiency of the label 5.

[0121] Based on the above embodiments, the slide rail mounting base 21 can also include a fifth positioning groove, a sixth positioning groove, a seventh positioning groove, and an eighth positioning groove; the fifth positioning groove, the sixth positioning groove, the seventh positioning groove, and the eighth positioning groove are respectively located on the four sides of the same square; one of the base 1 and the slide rail mounting base 21 is provided with four positioning recesses 14, and the other is provided with four positioning protrusions 2111 that cooperate and insert with the four positioning recesses 14; the four positioning recesses 14 are respectively located at the four included angles in the same positive direction, so that the slide rail mounting base 21 is installed on the base 1 after rotating 90° relative to the base 1.

[0122] In actual use, the first label clamp 24 is moved to the position corresponding to the lowest position information, and the second label clamp 25 is moved to the position corresponding to the highest position information. If the reference feature is located between the positions corresponding to the lowest and highest position information, then label 5 is within the appearance offset standard in the current detection direction, meeting the requirements. If the reference feature is not located between the positions corresponding to the lowest and highest position information, then label 5 is outside the appearance offset standard in the current detection direction, failing to meet the requirements, and the installation position of the label paper on the label printing equipment needs to be adjusted. When it is necessary to inspect the width direction of label 5, the inspection fixture must first be... 2. Separate from base 1, then rotate the detection fixture 2 90° relative to base 1 and install it on base 1; then, control the first label clamp 24 to move to the position corresponding to the lowest position information, and control the second label clamp 25 to move to the position corresponding to the highest position information; if the reference feature is located between the position corresponding to the lowest position information and the position corresponding to the highest position information, then label 5 is within the appearance offset standard in the current detection direction, which meets the requirements; if the reference feature is not located between the position corresponding to the lowest position information and the position corresponding to the highest position information, then label 5 is outside the appearance offset standard in the current detection direction, which does not meet the requirements, and the installation position of the label paper on the label printing equipment needs to be adjusted.

[0123] In this specific embodiment, only one set of marking slide rail 22, first label clamping plate 24, and second label clamping plate 25 is required to inspect the label 5 in different directions. The structure is simple and the cost is low.

[0124] Based on the above embodiments, in order to avoid repeated disassembly of the testing fixture 2, the slide rail mounting base 21 can also include a mounting base. The first mounting base 211 is rotatably disposed on the mounting base. In order to avoid the label groove 11 in the middle of the base 1, an outer peripheral rotation mechanism can be provided. The outer peripheral edge of the first mounting base 211 is connected to the outer peripheral edge of the base 1 through a connecting rod 232 mechanism. The connecting rod 232 mechanism includes multiple first connecting rods 232 and multiple second connecting rods 232. One end of the first connecting rod 232 is hinged to the outer peripheral edge of the base 1, and the other end of the first connecting rod 232 is hinged to one end of the second connecting rod 232. The other end of the second connecting rod 232 is rotatably connected to the outer peripheral edge of the first mounting base 211. During the rotation of the first mounting base 211 relative to the base 1, the included angle between the first connecting rod 232 and the second connecting rod 232 will change.

[0125] Specifically, a first guide sleeve can be provided on the base 1, and a second guide sleeve can be provided on the side of the first mounting seat 211 facing the base 1. The first guide sleeve and the second guide sleeve cooperate to limit the rotation of the first mounting seat 211 relative to the base 1. It should be noted that the diameters of the first guide sleeve and the second guide sleeve are both larger than the size of the label groove 11 to avoid affecting the observation of the label 5.

[0126] In practical use, when it is necessary to inspect the length direction of label 5, the first mounting base 211 is controlled to rotate relative to the base 1 to a required angle position. At this time, the axis of the marking guide rail is along the length direction of label 5, the first label clamp 24 is controlled to move to the position corresponding to the lowest position information, and the second label clamp 25 is controlled to move to the position corresponding to the highest position information. If the reference feature is located between the positions corresponding to the lowest and highest positions, then label 5 is within the appearance offset standard in the current inspection direction and meets the requirements. If the reference feature is not located between the positions corresponding to the lowest and highest positions, then label 5 is outside the appearance offset standard in the current inspection direction and does not meet the requirements. The label paper needs to be repositioned in the label printing equipment. The position is adjusted; when it is necessary to inspect the width direction of label 5, the first mounting base 211 is controlled to rotate relative to the base 1 to the required angle position. At this time, the axis of the marking guide rail is along the width direction of label 5, the first label clamp 24 is controlled to move to the position corresponding to the lowest position information, and the second label clamp 25 is controlled to move to the position corresponding to the highest position information. If the reference feature is located between the position corresponding to the lowest position information and the position corresponding to the highest position information, then label 5 is within the appearance offset standard in the current detection direction and meets the requirements. If the reference feature is not located between the position corresponding to the lowest position information and the position corresponding to the highest position information, then label 5 is outside the appearance offset standard in the current detection direction and does not meet the requirements. The installation position of the label paper on the label printing equipment needs to be adjusted.

[0127] In this specific embodiment, by setting the first mounting plate to be rotatable relative to the base 1, in actual use, only one set of marking slide rail 22, first label clamping plate 24, and second label clamping plate 25 are needed to inspect the label 5 in different directions. The structure is simple and the cost is low. The operation process is simple and avoids repeated disassembly and assembly. It can effectively improve the inspection quality and inspection efficiency of the label 5.

[0128] In addition to the label inspection device described above, the present invention also provides a label inspection system including a label printing device, a host computer, and any of the label inspection devices disclosed above, wherein the label printing device is connected to the host computer.

[0129] In this specific embodiment, the host computer can be a control computer connected to the label printing equipment. The control computer can obtain the coordinate values ​​of the reference features when printing meets the requirements. Of course, the host computer can also be connected to the label inspection device. The host computer is used to control the sliding of the slider connector 23 relative to the marking slide rail 22 and the display of the display mechanism 31, etc. The specific determination depends on the actual situation and will not be elaborated here.

[0130] In addition to the label inspection system described above, this invention also discloses a label inspection method applied to the aforementioned label inspection system. The label inspection method includes:

[0131] Step S1: Obtain the appearance offset standard corresponding to the label 5 to be detected;

[0132] In step S1 above, the appearance offset standard of label 5 is preset. For example, if the offset standard is 1mm, then within ±1mm, the requirements are met.

[0133] Step S2: Select the reference feature of the tag 5 according to the offset standard;

[0134] like Figure 20 As shown, the more obvious label separator line 51 in label 5 can be used as a reference feature. Of course, other parts of label 5 can also be selected as reference features, depending on the actual situation, which will not be elaborated here.

[0135] Step S3: Obtain the location information corresponding to the reference feature;

[0136] In step S3, the location information corresponding to the reference feature can be obtained by the label printing device or by the host computer connected to the label printing device. The specific method depends on the actual situation and will not be elaborated here.

[0137] Step S4: Obtain the lowest and highest position information of the reference feature based on the position information;

[0138] Step S5: Control the first label clamp 24 to move to the position corresponding to the lowest position information, and control the second label clamp 25 to move to the position corresponding to the highest position information;

[0139] For example, if the position information corresponding to the reference feature is 30mm and the offset standard is 1mm, then the position corresponding to the highest position information is 31mm and the position corresponding to the lowest position information is 29mm.

[0140] Step S6: Determine whether the reference feature is located between the position corresponding to the lowest position information and the position corresponding to the highest position information. If yes, then label 5 is within the appearance offset standard in the current detection direction; otherwise, label 5 is outside the appearance offset standard in the current detection direction.

[0141] After step S6, the following also includes:

[0142] Step S7: Control the first tag clamp 24 to move in a direction less than the position corresponding to the lowest position information, and control the second tag clamp 25 to move in a direction greater than the position corresponding to the highest position information, until the reference feature is located within the position range between the first tag clamp 24 and the second tag clamp 25.

[0143] Step S8: Obtain the current position information corresponding to the current reference feature;

[0144] Step S9: Obtain the offset position information of the reference feature based on the current position information, the lowest position information, and the highest position information;

[0145] Step S10: Adjust the installation position of the label paper in the label printing device according to the offset position information.

[0146] For example, if label 5 is outside the appearance offset standard in the current detection direction during step S6, then the first label clamp 24 is moved in a direction less than 29mm, and the second label clamp 25 is moved in a direction greater than 31mm, until the reference feature is located within the position range between the first label clamp 24 and the second label clamp 25. If the current position information corresponding to the reference feature is 35mm at this time, compared to the standard 30mm, the reference feature is offset by 5mm, and the offset direction is greater than the standard position by 5mm. Based on the offset position information, the installation position of the printing paper on the label printing device is adjusted.

[0147] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0148] The label inspection device, label inspection system, and label inspection method provided by this invention have been described in detail above. The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the systems disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple, and relevant parts can be referred to the method section. It should be noted that those skilled in the art can make several improvements and modifications to this invention without departing from the principles of this invention, and these improvements and modifications also fall within the protection scope of this invention.

Claims

1. A label inspection device, characterized in that, include: The base (1) is provided with a label slot (11) for placing the label (5) to be tested; The testing fixture (2) is fixedly installed on the base (1), and the testing fixture (2) is provided with a slide rail mounting seat (21), a marking slide rail (22), at least two sets of slider connectors (23), a first label clamp (24) and a second label clamp (25). The first label clamp (24) and the second label clamp (25) can be slidably arranged along the marking slide rail (22). A marking mechanism (3) is installed on the detection fixture (2). The marking mechanism (3) is used to mark the position information of the first label clamp (24) and the second label clamp (25) on the marking slide rail (22). The upper cover mechanism (4) is disposed on the upper surface of the detection fixture (2), and the upper cover mechanism (4) is provided with an observation window (44) for observing the location of the label (5) in the label slot (11). The label inspection device also includes a third label clamp and a fourth label clamp; The slide rail mounting base (21) includes a first positioning groove, a second positioning groove, a third positioning groove and a fourth positioning groove, wherein the setting height of the third positioning groove and the fourth positioning groove is higher than the setting height of the first positioning groove and the second positioning groove; The marking slide rail (22) includes a first marking slide rail and a second marking slide rail. The first marking slide rail is installed in the first positioning groove and the second positioning groove. The second marking slide rail is installed in the third positioning groove and the fourth positioning groove. The second marking slide rail is mounted on the upper part of the first marking slide rail, and the axial direction of the first marking slide rail is perpendicular to the axial direction of the second marking slide rail. The slider connector (23) includes a first slider connector, a second slider connector, a third slider connector, and a fourth slider connector. The first slider connector and the second slider connector are slidably disposed on the first marking slide rail. The first label clamp (24) is mounted on the first slider connector, and the second label clamp (25) is mounted on the second slider connector. The third slider connector and the fourth slider connector are slidably disposed on the second marking slide rail. The third label clamp is mounted on the third slider connector, and the fourth label clamp is mounted on the fourth slider connector. When inspecting the length direction of the label (5), the third slider connector is controlled to move the third label clamp to the clearance position and the fourth slider connector is controlled to move the fourth label clamp to the clearance position, so as to avoid the third label clamp and the fourth label clamp affecting the inspection of the label (5) by the second label clamp (25) and the first label clamp (24); When inspecting the width direction of the label (5), the first slider connector is controlled to move the first label clamp (24) to the avoidance position and the second slider connector is controlled to move the second label clamp (25) to the avoidance position, so as to avoid the first label clamp (24) and the second label clamp (25) from affecting the inspection of the label (5) by the third label clamp and the fourth label clamp.

2. The label inspection device according to claim 1, characterized in that, The slide rail mounting base (21) is provided with a positioning groove for fixing the marking slide rail (22); The marking slide rail (22) is installed in the positioning groove of the slide rail mounting base (21) to restrict the axial movement of the marking slide rail (22); At least two sets of slider connectors (23) are mounted on the marking slide rail (22) and are slidably disposed along the marking slide rail (22). The first label clamp (24) is mounted on one set of slider connectors (23), and the second label clamp (25) is mounted on the other set of slider connectors (23). The marking mechanism (3) includes a position mark (32) disposed on the marking slide rail (22), the position mark (32) being used to display the axial position information of the first label clamp (24) and the second label clamp (25) on the marking slide rail (22).

3. The label inspection device according to claim 2, characterized in that, The marking mechanism (3) further includes: A display mechanism (31) is disposed on the slide rail mounting base (21). The display mechanism (31) is used to display the position information of the first label clamp (24) and the second label clamp (25) on the marking slide rail (22). The transmission mechanism includes a rotating component, a conversion assembly connected to the rotating component, a linear encoder (33) connected to the rotating component, and a first controller; the conversion assembly is used to convert the movement of the slider connector (23) into the rotation of the rotating component, the linear encoder (33) is used to acquire the rotation information of the rotating component and transmit the rotation information to the first controller, the first controller obtains the position information of the slider connector (23) according to the rotation information and transmits the position information to the display mechanism (31) and controls the display mechanism (31) to display the position information.

4. The label inspection device according to claim 3, characterized in that, The detection fixture (2) further includes a camera, which is used to acquire image information of the first label clamp (24), the second label clamp (25) and the label (5), and send the image information to the first controller. The first controller obtains the position image information of the label (5) based on the image information, and sends the position image information to the display mechanism (31) to control the display mechanism (31) to display the position image information.

5. The label inspection device according to claim 3, characterized in that, The slider connector (23) is equipped with a pull rod (231), which extends out of the upper cover mechanism (4); or, the detection fixture (2) further includes a power component for driving the slider connector (23) to move along the marking slide rail (22), the power component being connected to the first controller so as to control the start and stop of the power component through the first controller; The conversion component includes a rack disposed on the slider connector (23), and the rotating component is a gear that meshes with the rack for transmission; The slide rail mounting base (21) includes a first mounting base (211) disposed on the lower side of the marking slide rail (22) and a second mounting base (212) disposed on the upper side of the marking slide rail (22). The positioning groove includes a first recess (2114) disposed on the first mounting base (211) and a second recess (2124) mounted on the second mounting base (212). The upper cover mechanism (4) is detachably mounted on the upper surface of the slide rail mounting base (21). The upper cover mechanism (4) is provided with a slide groove (41) extending along the moving direction of the pull rod (231). The pull rod (231) passes through the slide groove (41) and extends out of the upper cover mechanism (4). The slide groove (41) includes a first branch slide groove and a second branch slide groove arranged opposite to each other, the first branch slide groove being parallel to the second branch slide groove; or, the slide groove (41) includes a first branch slide groove, a second branch slide groove, a third branch slide groove and a fourth branch slide groove, the first branch slide groove being parallel to the second branch slide groove, the third branch slide groove being parallel to the fourth branch slide groove, and the distance between the first branch slide groove and the second branch slide groove being equal to the distance between the third branch slide groove and the fourth branch slide groove; or, the slide groove (41) is a square annular structure; The upper cover mechanism (4) is provided with a handle (42) for easy transfer; the side surface of the slide rail mounting base (21) is provided with a handle (2125) for easy transfer. The base (1) is provided with a slot communicating with the label slot (11), and at least one side of the label slot (11) is provided with the slot to facilitate the taking and placing of the label (5).

6. The label inspection device according to any one of claims 2-5, characterized in that, The slide rail mounting base (21) includes a fifth positioning groove, a sixth positioning groove, a seventh positioning groove and an eighth positioning groove; the fifth positioning groove, the sixth positioning groove, the seventh positioning groove and the eighth positioning groove are respectively located on the four sides of the same square; One of the base (1) and the slide rail mounting base (21) is provided with four positioning recesses (14), and the other is provided with four positioning protrusions (2111) that cooperate with the four positioning recesses (14). The four positioning recesses (14) are located at four included angles in the same positive direction, so that the slide rail mounting base (21) can be installed on the base (1) after rotating 90° relative to the base (1).

7. A label inspection system, characterized in that, The device includes the label inspection apparatus, label printing equipment, and host computer as described in any one of claims 1-6, wherein the label printing equipment is connected to the host computer.

8. A label inspection method, characterized in that, The label inspection method, applied to the label inspection system of claim 7, comprises: Obtain the appearance offset standard corresponding to the label (5) to be detected; The reference feature of the label (5) is selected according to the appearance offset standard; Obtain the location information corresponding to the reference feature; The lowest and highest position information of the reference feature are obtained based on the position information. Control the first label clamp (24) to move to the position corresponding to the lowest position information, and control the second label clamp (25) to move to the position corresponding to the highest position information; Determine whether the reference feature is located between the position corresponding to the lowest position information and the position corresponding to the highest position information. If yes, the label (5) is within the appearance offset standard in the current detection direction; otherwise, the label (5) is outside the appearance offset standard in the current detection direction.

9. The label inspection method according to claim 8, characterized in that, After the label (5) is located outside the appearance offset standard in the current detection direction, it also includes: Control the first label clamp (24) to move in a direction less than the position corresponding to the lowest position information, and control the second label clamp (25) to move in a direction greater than the position corresponding to the highest position information, until the reference feature is located within the position range between the first label clamp (24) and the second label clamp (25); Obtain the current position information corresponding to the current reference feature; The offset position information of the reference feature is obtained based on the current position information, the lowest position information, and the highest position information; The installation position of the label paper in the label printing device is adjusted according to the offset position information.

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