Positioning detection device and printing equipment

Abstract

The utility model discloses a positioning detection device and printing equipment, the positioning detection device comprises a support frame, a visual detection module and a height sensor, the support frame is configured to be at least partially arranged above a transportation assembly, the support frame is provided with a first side and a second side which are opposite in a first direction, the visual detection module is arranged on the first side, and the height sensor is arranged on the second side. The visual detection module is used for obtaining images of the materials located on the conveying assembly, and the height sensor is arranged on the second side and used for detecting the height of the materials. According to the scheme of the utility model, the visual detection module and the height sensor are arranged, so that the image and the height of the material can be obtained, and the printing accuracy of the material can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing, in particular to a positioning detection device and printing equipment. Background Art

[0002] Inkjet printing is a printing method that sprays tiny black or colored ink droplets onto a material. Inkjet printing recreates a digital image by spraying ink droplets onto the material. In the related art, existing inkjet printing equipment includes a printing component and a positioning detection device. The positioning detection device is usually provided with a device capable of detecting two-dimensional contour information of the material to be printed, and can realize the recognition of the material on the two-dimensional plane (i.e., the horizontal plane), thereby improving the accuracy of printing the material. However, when printing on a material to be printed with an uneven surface, due to the presence of a slope on the surface of such a material, the actual area of ​​the slope is not the same as the projected area of ​​the slope on the horizontal plane. Within the same horizontal area, the slope requires larger ink droplets than the plane to spray the slope completely. Therefore, such inkjet printing equipment cannot identify such materials and it is difficult to ensure the accuracy of printing the material. Utility Model Content

[0003] The embodiment of the utility model discloses a positioning detection device and a printing device, which can obtain the image and height of a material by arranging a visual detection module and a height sensor, thereby improving the accuracy of material printing.

[0004] To achieve the above-mentioned objectives, in a first aspect, the present invention discloses a positioning detection device, wherein the positioning detection device is applied to a printing device, wherein the printing device includes a transport component for transporting materials, including:

[0005] a support frame, the support frame being configured to be at least partially disposed above the transport assembly, the support frame having a first side and a second side opposite to each other along a first direction;

[0006] a visual inspection module, disposed on the first side, the visual inspection module being configured to acquire an image of a material located on the transport assembly;

[0007] A height sensor is provided on the second side, and is used to detect the height of the material.

[0008] As an optional implementation, in an embodiment of the first aspect of the present utility model, the visual detection module includes a light source assembly and a visual sensor, the light source assembly includes a light source body, a first connecting member, and a second connecting member, the first connecting member and the second connecting member are provided on the first side, and the first connecting member and the second connecting member are spaced apart along the second direction, the light source body is connected to the first connecting member and / or the second connecting member, and the visual sensor is provided on the first side and located between the first connecting member and the second connecting member;

[0009] The second direction intersects with the first direction.

[0010] As an optional embodiment, in an embodiment of the first aspect of the present utility model, the first connecting member and the second connecting member extend along the height direction of the support frame, a first clamping portion is provided on the light source body, the first connecting member and / or the second connecting member are provided with multiple second clamping portions, and the multiple second clamping portions are arranged at intervals along the height direction of the support frame, and the first clamping portion can be detachably connected to any second clamping portion to adjust the position of the light source body relative to the first connecting member and the second connecting member.

[0011] As an optional embodiment, in an embodiment of the first aspect of the present utility model, the light source body includes a line scanning light source, the light source body has at least a partial light-transmitting area, and along the height direction of the support frame, the visual sensor is located at the upper part of the light source body and the visual sensor is arranged corresponding to the light-transmitting area.

[0012] In the second aspect, the utility model also discloses a printing device, which includes a transport component, a printing component and a positioning detection device as described in the first aspect above, the printing component and the positioning detection device are at least partially arranged above the transport component, the transport component is used to transport materials along the first direction, the printing component is located downstream of the positioning detection device along the first direction, and the printing component is configured to print the material according to the image of the material and the height of the material obtained by the positioning detection device.

[0013] As an optional embodiment, in an embodiment of the second aspect of the present utility model, the printing component includes a spraying device, the spraying device includes a mounting seat, a liquid storage component, a valve and a pumping component, the liquid storage component is arranged on the mounting seat, the liquid storage component is used to store spray liquid, the valve is arranged on the mounting seat, the valve is provided with multiple groups of spray hole groups, the multiple groups of spray hole groups are arranged at intervals along the first direction, each group of the spray hole groups has multiple spray holes arranged at intervals along the second direction, in any of the spray hole groups, the distance between at least one spray hole and each spray hole of at least one other spray hole group in the second direction is not zero, the pumping component is arranged on the mounting seat, the pumping component is connected to the liquid storage component and the valve, and the pumping component is used to pump the spray liquid in the liquid storage component to the valve.

[0014] As an optional implementation, in an embodiment of the second aspect of the present utility model, the distance between any two spray holes of the valve in the second direction is not zero.

[0015] As an optional implementation manner, in an embodiment of the second aspect of the present utility model, in the same spray hole group, the distance between two adjacent spray holes in the second direction is the same.

[0016] As an optional embodiment, in an embodiment of the second aspect of the present utility model, the number of the spray hole groups is a, and in the same spray hole group, the distance between two adjacent spray holes in the second direction is D. In any two spray hole groups, the distance between the two spray holes closest to each other in the second direction is d, satisfying the relationship: d = (n / a) * D, where n < a, and n and a are both positive integers.

[0017] As an optional implementation, in an embodiment of the second aspect of the present utility model, there are multiple valves, and the multiple valves are arranged along the first direction, and the distance between any two spray holes of the multiple valves in the second direction is not zero.

[0018] As an optional embodiment, in an embodiment of the second aspect of the present utility model, the printing equipment also includes a material carrier, the material carrier includes a carrying platform and a display device, the carrying platform is slidably arranged on the transport component along the first direction, the carrying platform is used to carry and adsorb the material, the display device is arranged on the side of the carrying platform, and the display device is used to display the situation of the carrying platform adsorbing the material.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The positioning detection device and printing equipment provided in the present invention include a support frame for supporting components such as a visual inspection module and a height sensor, enabling the visual inspection module and the height sensor to be positioned above a material for inspection. By arranging the visual inspection module and the height sensor, the visual inspection module can capture an image of the material, thereby obtaining information about the material's position within a two-dimensional plane. The height sensor can detect the material's height, thereby obtaining information about the material's position in the height direction.

[0021] When the positioning detection device is applied to a printing device, the printing device can position the material based on the material's position information within a two-dimensional plane obtained by the positioning detection device, thereby adjusting the printing position of the printing device on the material and reducing the possibility of offset printing on the material. Furthermore, the printing device can also adjust the printing height of the printing device based on the material's position information in the height direction obtained by the positioning detection device, ensuring a suitable distance between the printing device and the material. When printing materials with uneven surfaces, the printing device can adjust the amount of spray liquid sprayed based on the inclination of the material surface obtained based on the material's position information in the height direction, thereby improving the accuracy of material printing.

[0022] Furthermore, the visual inspection module and height sensor are respectively located on first and second sides of the support frame, which are opposite each other in the first direction. Their integration into the same support frame results in a more compact structural design for the positioning detection device, reducing the space occupied by the positioning detection device. Furthermore, as materials move along the transport assembly in the first direction, they can pass through the visual inspection module and height sensor more quickly and sequentially, thereby improving the efficiency of the positioning detection device in detecting materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the printing device disclosed in the embodiment of the present application;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the positioning detection device disclosed in the embodiment of the present application;

[0026] Figure 3 is a schematic diagram of the three-dimensional structure of the positioning detection device disclosed in an embodiment of the present application from another perspective;

[0027] Figure 4 is a schematic diagram of the three-dimensional structure of the light source body disclosed in the embodiment of the present application;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the spraying device disclosed in the embodiment of the present application;

[0029] Figure 6 is a schematic diagram of the three-dimensional structure of the spraying device disclosed in the embodiment of the present application from another perspective;

[0030] Figure 7 It is a schematic structural diagram of two valves disclosed in the embodiment of this application;

[0031] Figure 8 yes Figure 7 Magnified view of section A;

[0032] Figure 9 Schematic diagram of the three-dimensional structure of the valve disclosed in the embodiment of the present application;

[0033] Figure 10 is a schematic diagram of the three-dimensional structure of the valve disclosed in the embodiment of the present application from another perspective;

[0034] Figure 11 It is a schematic diagram of the three-dimensional structure of the material carrier disclosed in the embodiment of this application.

[0035] Icon: 100, printing equipment;

[0036] 1. Transport components;

[0037] 2. Material carrier; 20. Carrying platform; 21. Display device;

[0038] 3. Printing assembly; 3a. Spraying device; 30. Mounting seat; 300. Back plate; 301. First side plate; 302. Second side plate; 303. Bottom plate; 303a. Avoidance portion; 304. Support plate; 305. Mounting space; 31. Liquid storage component; 310. First storage portion; 311. Second storage portion; 32. Valve; 32a. Spray hole group; 320. Spray hole; 321. First connecting portion; 322. Second connecting portion; 33. Pumping component; 34. First moving mechanism; 35. Mounting member; 36. First pipeline; 37. Control main board; 3b. Support structure; 38. Second moving mechanism

[0039] 4, positioning detection device; 40, support frame; 400, first side; 401, second side; 41, visual detection module; 41a, light source assembly; 410, light source main body; 410a, line scanning light source; 4100, first clamping portion; 4101, light transmission area; 411, first connecting piece; 4110, second clamping portion; 412, second connecting piece; 41b, visual sensor; 42, height sensor;

[0040] X, first direction; Y, second direction; Z, height direction. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the utility model will be further described below with reference to the drawings.

[0042] In order to facilitate the understanding of the structure and technical effects of the spraying device of the present application, the present application takes the application of the spraying device in the printing equipment as an example to make an overall introduction to the printing equipment.

[0043] The technical solutions in the embodiments of the utility model will be further described below with reference to the drawings.

[0044] Please refer to Figure 1 The embodiment of the utility model provides a printing equipment 100, printing equipment 100 includes transport assembly 1 and printing assembly 3, printing assembly 3 is at least partially arranged on the top of transport assembly 1, and transport assembly 1 is used to transport material along the first direction X.

[0045] Optionally, the transport assembly 1 can be a linear motor or a conveyor belt, etc., and the specific selection can be made according to the actual situation, which is not specifically limited in the embodiment.

[0046] Optionally, the printing assembly 3 can be partially arranged on the top of the transport assembly 1, or can be entirely arranged on the top of the transport assembly 1, so that the printing assembly 3 can print on the top of the material, and the specific selection can be made according to the actual situation, which is not specifically limited in the embodiment.

[0047] In some embodiments, the printing equipment 100 further comprises a positioning detection device 4, the positioning detection device 4 is at least partially arranged on the top of the transport assembly 1, and the positioning detection device 4 is used to detect the material.

[0048] Optionally, the positioning detection device 4 can be partially or completely located above the transport component 1, so that the positioning detection device 4 can perform detection above the material. The specific selection can be made according to actual conditions and is not specifically limited in this embodiment.

[0049] In some embodiments, the printing device 100 further includes a material carrier 2 , which is used to carry materials.

[0050] The structures of the printing assembly 3 , the positioning detection device 4 and the material carrier 2 will be described in detail below with reference to the accompanying drawings.

[0051] Please also refer to Figure 2 and Figure 3 In some embodiments, the positioning detection device 4 includes a support frame 40, a visual detection module 41 and a height sensor 42. The support frame 40 is configured to be at least partially disposed above the transport component 1. The support frame 40 has a first side 400 and a second side 401 opposite to each other along the first direction X. The visual detection module 41 is disposed on the first side 400. The visual detection module 41 is used to obtain an image of the material located on the transport component 1. The height sensor 42 is disposed on the second side 401. The height sensor 42 is used to detect the height of the material.

[0052] Thus, the support frame 40 is used to support components such as the visual inspection module and height sensor 42, allowing the visual inspection module 41 and height sensor 42 to be positioned above the material for material inspection. By arranging the visual inspection module 41 and height sensor 42, the visual inspection module 41 can capture an image of the material, thereby obtaining information about the material's position within a two-dimensional plane. The height sensor 42 can detect the material's height, thereby obtaining information about the material's position in the height direction Z.

[0053] When the positioning detection device 4 is applied to the printing device 100, the printing device 100 can position the material according to the position information of the material in the two-dimensional plane obtained by the positioning detection device 4, so as to adjust the printing position of the spraying device 3a of the printing device 100 on the material, and reduce the offset of the printing of the printing device 100 on the material. At the same time, the printing device 100 can also adjust the printing height of the spraying device 3a according to the position information of the material in the height direction Z obtained by the positioning detection device 4, so that there is a suitable distance between the spraying device 3a and the material. In addition, when printing materials with uneven surfaces, the inclination degree of the slope of the material surface is obtained according to the position information of the material in the height direction Z, and the spraying device 3a can adjust the size of the spraying liquid sprayed according to the inclination degree of the slope of the material surface, thereby improving the accuracy of material printing.

[0054] In addition, the visual detection module 41 and the height sensor 42 are respectively arranged on the first side 400 and the second side 401 of the support frame 40 opposite to each other in the first direction X. The visual detection module 41 and the height sensor 42 are integrated on the same support frame 40. The structural design of the positioning detection device 4 is relatively compact, which can reduce the space occupied by the positioning detection device 4. Moreover, when the material moves along the first direction X on the transport component 1, it can pass through the visual detection module 41 and the height sensor 42 in sequence at a faster speed, which is beneficial to improve the efficiency of the positioning detection device 4 in detecting materials.

[0055] Optionally, the support frame 40 may be a gantry frame or a cantilever frame, etc., and the specific selection can be made according to actual conditions and is not specifically limited in this embodiment. Taking the support frame 40 as a gantry frame as an example, when the support frame 40 is applied to the printing device 100, it is placed above the transport component 1 of the printing device 100, so that the visual inspection module 41 and height sensor 42 provided on the support frame 40 can directly inspect the materials located on the transport component 1. This facilitates the simultaneous inspection of materials during transportation, eliminating the need to move the materials to other workstations for inspection, and improving inspection efficiency.

[0056] Optionally, the height sensor 42 may be a laser ranging sensor or an infrared sensor, etc., which may be selected according to actual conditions and is not specifically limited in this embodiment.

[0057] In some embodiments, the visual detection module 41 includes a light source assembly 41a and a visual sensor 41b. The light source assembly 41a includes a light source body 410, a first connecting member 411 and a second connecting member 412. The first connecting member 411 and the second connecting member 412 are arranged on the first side 400, and the first connecting member 411 and the second connecting member 412 are arranged at intervals along the second direction Y. The light source body 410 is connected to the first connecting member 411 and / or the second connecting member 412. The visual sensor 41b is arranged on the first side 400 and is located between the first connecting member 411 and the second connecting member 412.

[0058] In one example, the light source body 410 is connected to the first connecting member 411 .

[0059] In another example, the light source body 410 is connected to the second connecting member 412 .

[0060] In another example, the light source body 410 is connected to the first connecting member 411 and the second connecting member 412 .

[0061] In this way, the visual sensor 41b can acquire an image of the material located on the transport component 1, and the light source component 41a can provide light for the visual sensor 41b, so that the visual sensor 41b can acquire an image at an appropriate brightness, thereby improving the imaging effect of the visual sensor 41b. The first connecting member 411 and the second connecting member 412 can support the light source component 41a. By arranging the visual sensor 41b between the first connecting member 411 and the second connecting member 412, on the one hand, the light provided by the light source component 41a can cover the field of view of the visual sensor 41b, and on the other hand, the visual detection module 41 can be arranged more compactly, reducing the space occupied by the visual detection module 41.

[0062] Optionally, the visual sensor 41b may be a line scan camera or a scanner, etc., and the specific selection can be made based on actual conditions and is not specifically limited in this embodiment. When the visual sensor 41b is a line scan camera, the visual sensor 41b images a straight line of the material in the second direction Y. By moving the material in the first direction X by the transport assembly 1, an image of the material in a two-dimensional plane can be obtained.

[0063] Optionally, the first connecting member 411 and the second connecting member 412 may be plate-shaped structures or rod-shaped structures, etc., which can be selected according to actual conditions and are not specifically limited in this embodiment.

[0064] In some embodiments, the light source body 410 includes a line scanning light source 410a, and the light source body 410 has at least a partial light-transmitting area 4101. Along the height direction Z of the support frame 40, the visual sensor 41b is located at the upper part of the light source body 410 and the visual sensor 41b is set corresponding to the light-transmitting area 4101.

[0065] In this way, the line scanning light source 410a can provide linear light to the material through the light-transmitting area 4101. At the same time, the visual sensor 41b can photograph the material through the light-transmitting area 4101 of the line scanning light source 410a. Through the cooperation of the light source body 410 and the visual sensor 41b, the brightness adjustment and linear photography of the material are realized.

[0066] Please also refer to Figure 2 and Figure 4 In some embodiments, the first connecting member 411 and the second connecting member 412 extend along the height direction Z of the support frame 40, and a first clamping portion 4100 is provided on the light source body 410. The first connecting member 411 and / or the second connecting member 412 are provided with multiple second clamping portions 4110. The multiple second clamping portions 4110 are arranged at intervals along the height direction Z of the support frame 40. The first clamping portion 4100 can be detachably connected to any second clamping portion 4110 to adjust the position of the light source body 410 relative to the first connecting member 411 and the second connecting member 412.

[0067] In one example, the first connecting member 411 is provided with a plurality of second clamping portions 4110 .

[0068] In another example, the second connecting member 412 is provided with a plurality of second clamping portions 4110 .

[0069] In another example, the first connecting member 411 and the second connecting member 412 are provided with a plurality of second clamping portions 4110 .

[0070] In this way, by setting a first clamping portion 4100 on the light source main body 410, and providing multiple second clamping portions 4110 on the first connecting member 411 and the second connecting member 412, and by connecting the first clamping portion 4100 to different second clamping portions 4110, the position of the light source main body 410 relative to the first connecting member 411 and the second connecting member 412 can be adjusted, thereby adjusting the height of the light source main body 410, so that there is a suitable distance between the light source main body 410 and the visual sensor 41b and the material, so that the light source main body 410 can better provide light for the visual sensor 41b.

[0071] Optionally, one of the first clamping portion 4100 and the second clamping portion 4110 may be a convex portion, and the other may be a groove; or, the first clamping portion 4100 and the second clamping portion 4110 may both be screw holes, and a detachable connection is achieved by additionally provided bolts.

[0072] See also Figure 1 In some embodiments, the printing device 100 includes a support structure 3b and a spraying device 3a, wherein the spraying device 3a is disposed on the support structure 3b. The support structure 3b is used to support the spraying device 3a so that the spraying device 3a can be positioned above the material for printing.

[0073] Please also refer to Figures 5 to 8 In some embodiments, the spraying device 3a includes a mounting seat 30, a liquid storage component 31, a valve 32 and a pumping component 33. The liquid storage component 31 is provided on the mounting seat 30 and is used to store the spraying liquid. The valve 32 is provided on the mounting seat 30. The valve 32 has multiple groups of spraying hole groups 32a. The multiple groups of spraying hole groups 32a are arranged at intervals along the first direction X. Each group of spraying hole groups 32a has multiple spraying holes 320 arranged at intervals along the second direction Y. In any spraying hole group 32a, the distance between at least one spraying hole 320 and each spraying hole 320 of at least one other spraying hole group 32a in the second direction Y is not zero. The pumping component 33 is provided on the mounting seat 30, and the pumping component 33 is connected to the liquid storage component 31 and the valve 32. The pumping component 33 is used to pump the spraying liquid in the liquid storage component 31 to the valve 32.

[0074] It can be understood that the above-mentioned first direction X is the direction in which the transport component 1 transports the material, and the second direction Y is a direction intersecting with the first direction X. Since the spraying device 3a performs two-dimensional spraying on the upper surface of the material, the second direction Y can usually be made perpendicular or approximately perpendicular to the first direction X, and the first direction X and the second direction Y can be made perpendicular or approximately perpendicular to the height direction Z of the printing device 100.

[0075] In this way, the mounting seat 30 can carry the various components of the spray device 3a (such as the liquid storage component 31, the valve 32 and the pumping component 33, etc.). The liquid storage component 31 can store the spray liquid that the spray device 3a needs to spray. The pumping component 33 can provide power for the spray liquid and pump the spray liquid in the liquid storage component 31 to the valve 32. The valve 32 can control the opening or closing of each spray hole 320 respectively. When the valve 32 controls any spray hole 320 to open, under the action of the pumping component 33, the spray liquid can be sprayed out from the spray hole 320, so that the spray hole 320 is printed at the position on the material corresponding to the height direction Z of the spray device 3a. When the valve 32 controls any spray hole 320 to close, no spray liquid will be sprayed out of the spray hole 320.

[0076] By providing the valve 32 with multiple groups of spray hole groups 32a spaced apart along the first direction X, and each of the multiple spray hole groups 32a having multiple spray holes 320 spaced apart along the second direction Y, when the spray device 3a is applied to the printing device 100, the multiple spray holes 320 of one spray hole group 32a can simultaneously spray the material at multiple locations in the second direction Y, and the multiple spray hole groups 32a can operate simultaneously, thereby improving the printing efficiency of the spray device 3a. Furthermore, during the printing process, the spray device 3a does not need to move in the second direction Y; it only needs to move the material in the first direction X to complete printing on the object. This can avoid the spray liquid sprayed by the spray device 3a having a certain speed in the first direction X, which makes it difficult for the spray liquid to accurately drip onto the desired spraying point, thereby improving the printing accuracy of the spray device 3a.

[0077] In addition, by ensuring that in any of the spray hole groups 32a, the distances between at least one spray hole 320 and the spray holes 320 of at least one other spray hole group 32a in the second direction Y are not zero, that is, at least one spray hole 320 and the spray holes 320 of at least one other spray hole group 32a are staggered in the second direction Y, since the material moves in the first direction X, the same line of the material in the second direction Y will pass through different spray hole groups 32a, such spray holes 320 can spray positions that the spray holes 320 of other spray hole groups 32a cannot spray, which is equivalent to increasing the density of the spray holes 320 set in the second direction Y of the spray hole group 32a. When the spraying device 3a is applied to the printing equipment 100, the printing resolution of the printing equipment 100 can be improved.

[0078] Optionally, the spraying liquid may be ink or glue, etc., which may be selected according to actual conditions and is not specifically limited in this embodiment.

[0079] Optionally, in any one spray hole group 32a, the distances between one spray hole 320 or multiple spray holes 320 (for example, two, three or four, etc.) or all spray holes 320 and each spray hole 320 of another spray hole group 32a in the second direction Y are not zero, or the distances between one spray hole 320 or multiple spray holes 320 or all spray holes 320 and each spray hole 320 of multiple (for example, two, three or four, etc.) other spray hole groups 32a in the second direction Y are not zero, such as Figure 8 As shown, the distances between one spray hole 320 or multiple spray holes 320 or all spray holes 320 and all other spray holes 320 in the spray hole group 32a in the second direction Y may not be zero. The specific distances may be selected according to actual conditions and are not specifically limited in this embodiment.

[0080] In some embodiments, the distance between any two spray holes 320 of the valve 32 in the second direction Y is not zero. That is, the spray holes 320 of all spray hole groups 32a on the valve 32 are staggered in the second direction Y.

[0081] In this way, when the material moves in the first direction X, when the same line on the material in the second direction Y passes through different spray hole groups 32a, any position on the line (which can be regarded as a point) will not repeatedly pass through the spray holes 320 of different spray hole groups 32a, that is, any position on the line will only pass through one spray hole 320 when passing through the spray holes 320 of different spray hole groups 32a. Under the premise of ensuring the printing efficiency and printing accuracy of the spray device 3a, the utilization rate of the spray holes 320 can be improved, the number of spray holes 320 set can be reduced, and the production cost and processing difficulty of the valve 32 can be reduced.

[0082] It can be understood that when such a spraying device 3a prints the material, the same line of the material in the second direction Y passes through different spray hole groups 32a, which is equivalent to being printed by a large spray hole group formed by a combination of multiple spray hole groups 32a. The above-mentioned large spray hole group is arranged along the second direction Y and has all the spray holes 320 of all the spray hole groups 32a of the valve 32. Due to the limitations of the internal structural design of the valve 32, the gap between two adjacent spray holes 320 in the second direction Y (that is, the distance between the edges of the two spray holes 320) is difficult to approach zero and cannot be zero. If only one spray hole group 32a is set on the valve 32, that is, there is only one plurality of spray holes 320 spaced apart along the second direction Y, such a valve 32 is difficult to achieve higher printing resolution. However, by adopting the spraying device 3a of the present application, by setting multiple spray hole groups 32a, the distance between two adjacent spray holes 320 of a large spray hole group formed by multiple spray hole groups 32a can be close to zero, and even the distance between two adjacent spray holes 320 can be zero, that is, the large spray hole group corresponds to a long strip hole, thereby better improving the resolution of the printing device 100.

[0083] Optionally, the selection can be made in the same spray hole group 32a according to actual conditions, and is not specifically limited in this embodiment.

[0084] In some embodiments, in the same spray hole group 32a, the distance between two adjacent spray holes 320 in the second direction Y is the same. That is, the multiple spray holes 320 in the same spray hole group 32a are evenly spaced in the second direction Y.

[0085] In this way, on the one hand, the distribution of multiple spray holes 320 in the second direction Y can be made more uniform, which is beneficial to improving the uniformity of the spray device 3a in the second direction Y when printing the material, and reducing the occurrence of some positions on the material that cannot be printed and sprayed due to the uneven distribution of the spray holes 320. On the other hand, it can reduce the design and processing difficulty of the valve 32.

[0086] In this embodiment, the distance between two adjacent spray holes 320 in each spray hole group 32a in the second direction Y is the same. This helps to further improve the uniformity of the spray device 3a in printing on the material in the second direction Y, and at the same time, it can further reduce the difficulty of designing and manufacturing the valve 32.

[0087] In some embodiments, the number of the groups of spray holes 32a is a, the distance between two adjacent spray holes 320 in the same group of spray holes 32a in the second direction Y is D, and the distance between the two closest spray holes 320 in any two groups of spray holes 32a in the second direction Y is d, which satisfies the relationship d = (n / a) * D, where n < a, and n and a are positive integers. That is, the distance between any two adjacent spray holes 320 in the large group of spray holes formed by the plurality of groups of spray holes 32a is equal and is d. In this embodiment, the distance between two spray holes 320 refers to the distance between the centers of the two spray holes 320.

[0088] In this way, the uniformity of the spraying device 3a in the second direction Y when printing the material can be greatly improved, and the situation that some positions on the material cannot be printed due to uneven distribution of the spray holes 320 can be avoided. When the spraying device 3a is applied to the printing equipment 100, the actual printing resolution of the printed material is close to the ideal printing resolution in design.

[0089] For example, if the number of the groups of spray holes 32a is 4, the relationship d = (n / 4) * D is satisfied, where n < 4 and n is a positive integer. Taking one of the groups of spray holes 32a as a reference, the distances between the two closest spray holes 320 in the second direction Y between the remaining three groups of spray holes 32a and the group of spray holes 32a are 1 / 4D, 2 / 4D, and 3 / 4D, respectively. The arrangement order of the four groups of spray holes 32a in the first direction X can be selected according to actual conditions, which is not specifically limited in this embodiment.

[0090] In some embodiments, the number of the valves 32 is a plurality, and the plurality of valves 32 are arranged in the first direction X. The distance between any two spray holes 320 of the plurality of valves 32 in the second direction Y is not zero.

[0091] In this way, the plurality of valves 32 can be used in combination. When the material moves in the first direction X, the same line on the material in the second direction Y passes through the spray holes 320 of different groups of spray holes 32a of different valves 32, any position (which can be regarded as a point) on the line will not pass through the spray holes 320 of different groups of spray holes 32a repeatedly, that is, any position on the line will pass through only one spray hole 320 when passing through the spray holes 320 of different groups of spray holes 32a. Under the premise of ensuring the printing efficiency and printing accuracy of the spraying device 3a, the utilization rate of the spray holes 320 can be improved, the number of the spray holes 320 can be reduced, and the production cost and processing difficulty of the valves 32 can be reduced.

[0092] In some embodiments, the total number of spray hole groups 32a of multiple valves 32 is a, and in the same spray hole group 32a, the distance between two adjacent spray holes 320 in the second direction Y is D. In any two spray hole groups 32a, the distance between the two spray holes 320 closest to each other in the second direction Y is d, satisfying the relationship: d = (n / a) * D, where n < a, and n and a are both positive integers.

[0093] In this way, when multiple valves 32 are used in combination, the uniformity of the spray device 3a in printing the material in the second direction Y can be greatly improved, avoiding the situation where some positions on the material cannot be printed due to uneven distribution of the spray holes 320, so that when the spray device 3a is applied to the printing equipment 100, the actual printing resolution printed is closer to the ideal printing resolution during design.

[0094] For example, Figure 7 and Figure 8 As shown, if there are two valves 32, the number of spray hole groups 32a of each valve 32 is 8, and the total number of spray hole groups 32a of the two valves 32 is 16, then the relationship is satisfied: d = (n / 16) * D, where n < 16, and n is a positive integer. Then, one of the spray hole groups 32a is used as a reference, and the remaining fifteen spray hole groups 32a are the two spray hole groups 320 closest to the spray hole group 32a in the second direction Y. The distances between them are 1 / 16D, 2 / 16D, 3 / 16D, 4 / 16D, 5 / 16D, 6 / 16D, 7 / 16D, 8 / 16D, 9 / 16D, 10 / 16D, 11 / 16D, 12 / 16D, 13 / 16D, 14 / 16D, and 15 / 16D, respectively. The arrangement order of the sixteen spray hole groups 32a in the first direction X can be selected according to actual conditions and is not specifically limited in this embodiment.

[0095] See also Figure 5 In some embodiments, the mounting base 30 includes a back plate 300, a first side plate 301, a second side plate 302 and a bottom plate 303. The first side plate 301 and the second side plate 302 are connected to both sides of the back plate 300 along the second direction Y. The bottom plate 303 is connected to the back plate 300, the first side plate 301 and the second side plate 302 to enclose an installation space 305. The liquid storage component 31 is arranged in the installation space 305. The valve 32 is arranged on the bottom plate 303 and is located in the installation space 305. The bottom plate 303 is provided with an avoidance portion 303a connected to the installation space 305 to avoid the spray hole 320.

[0096] In this way, the back plate 300, first side plate 301, second side plate 302, and bottom plate 303 of the mounting base 30 can enclose a mounting space 305, so that components such as the liquid storage component 31, valve 32, and pumping component 33 are all accommodated in the same space, making the structural layout of the spraying device 3a more compact and protecting the pipes connecting the pumping component 33 to the liquid storage component 31 and valve 32. By providing an avoidance portion 303a on the bottom plate 303 that is connected to the mounting space 305, the avoidance portion 303a can avoid the spraying hole 320 of the valve 32, ensuring that the spraying liquid ejected from the valve 32 can drip onto the material.

[0097] Optionally, the avoidance portion 303a may be a through hole or a through groove that passes through the bottom plate 303, and the specific selection may be made according to actual conditions and is not specifically limited in this embodiment.

[0098] In some embodiments, the spraying device 3a further includes a mounting member 35 and a first movable mechanism 34. The mounting member 35 is configured to be connected to the printing assembly 3. The first movable mechanism 34 is disposed on the mounting member 35, and the backplate 300 is disposed on the first movable mechanism 34. The first movable mechanism 34 is configured to move the backplate 300 relative to the mounting member 35 in the height direction Z of the spraying device 3a. The provision of the mounting member 35 facilitates the installation of the spraying device 3a on the support structure 3b of the printing assembly 3. The provision of the first movable mechanism 34 enables the backplate 300 to move relative to the mounting member 35 in the height direction Z of the spraying device 3a, thereby adjusting the valve 32 to an appropriate height, ensuring a suitable distance between the valve 32 and the material on the transport assembly 1, and facilitating the spraying device 3a to print the material.

[0099] Optionally, the mounting member 35 may be a plate-shaped structure or a block-shaped structure, etc., which may be selected according to actual conditions and is not specifically limited in this embodiment.

[0100] Optionally, the first moving mechanism 34 may be a linear motor or a hydraulic push rod, etc., which may be selected according to actual conditions and is not specifically limited in this embodiment.

[0101] In some embodiments, the mounting base 30 further includes a support plate 304, which is connected to the first side plate 301 and the second side plate 302 and is spaced apart from the back plate 300 along the first direction X. The liquid storage component 31 is disposed on the support plate 304. The spraying device 3a further includes a first pipe 36, a conductive member, and a control mainboard 37. One end of the first pipe 36 is slidably disposed between the support plate 304 and the back plate 300, and the other end of the first pipe 36 is connected to the mounting member 35. The control mainboard 37 is disposed on the first side plate 301 or the second side plate 302, and is electrically connected to the valve 32 and the pumping component 33. The conductive member is disposed in the first pipe 36, one end of the conductive member is electrically connected to the control mainboard 37, and the other end of the conductive member is used to be electrically connected to an external power source.

[0102] In this way, the support plate 304 can support the liquid storage component 31 and form a certain spacing between it and the back plate 300. The support plate 304 can provide a certain shielding and protection for the conductive components and circuits between the support plate 304 and the back plate 300 (the circuit refers to the electrical connection structure that realizes the electrical connection between the control main board 37 and the valve 32 and the pumping component 33), thereby improving the aesthetic appearance and safety of the spraying device 3a. The conductive components can be electrically connected to the control main board 37 and an external power supply, and the control main board 37 can be powered by the external power supply. By setting up the first pipe 36, the first pipe 36 can accommodate a conductive part for connecting to the control main board 37 and the external power supply, further improving the aesthetic appearance and safety of the spray device 3a. In addition, when the back plate 300 moves along the height direction Z of the spray device 3a, the first pipe 36 is fixed relative to the mounting part 35, and the support plate 304 and the back plate 300 slide relative to the first pipe 36. The accommodating cavity of the first pipe 36 can provide a guiding effect for the movement of the conductive part, thereby reducing the phenomenon of disordered movement of the conductive part during the movement of the back plate 300, causing entanglement, pulling, or even breakage.

[0103] Optionally, the conductive member may be a cable or a conductive metal wire, etc., which may be selected according to actual conditions and is not specifically limited in this embodiment.

[0104] Since the spraying liquid is stationary in the liquid storage component 31 and the valve 32 when the spraying device 3a is not performing printing operations, the spraying liquid may solidify (especially when the spraying liquid is glue), causing the liquid storage component 31 to be blocked and unable to normally provide the spraying liquid, or causing the spraying hole 320 of the valve 32 to be blocked and unable to normally spray the spraying liquid. Based on this, please refer to Figure 5 、 Figure 9 and Figure 10In some embodiments, the liquid storage component 31 comprises a first storage portion 310 and a second storage portion 311, the first storage portion 310 and the second storage portion 311 are arranged in the mounting space 305 in the second direction Y, the pumping component 33 is connected to the first storage portion 310 and the second storage portion 311, the valve 32 is provided with a first connecting portion 321 and a second connecting portion 322, the first connecting portion 321 and the second connecting portion 322 are connected to each spray hole 320, the first connecting portion 321 is connected to the first storage portion 310, the second connecting portion 322 is connected to the second storage portion 311, and the pumping component 33 is used to pump the spraying liquid in the first storage portion 310, the first connecting portion 321, the second connecting portion 322, and the second storage portion 311 in sequence.

[0105] In this way, the spraying liquid can be circulated between the valve 32, the first storage portion 310 and the second storage portion 311, so as to reduce the situation that the spraying liquid is solidified and causes the spraying holes 320 of the valve 32 and the liquid storage component 31 to be blocked.

[0106] Optionally, the first connecting portion 321 and the second connecting portion 322 can be holes provided on the valve 32, or can be hollow pipes, which can be selected according to actual conditions, and are not limited in the embodiment.

[0107] Please refer to Figure 1 Optionally, the support structure 3b can be a gantry or a cantilever, which can be selected according to actual conditions, and is not limited in the embodiment. Taking the support structure as a gantry as an example, when the support structure 3b is applied to the printing device 100, the spraying device 3a arranged on the support structure 3b can directly print the material on the conveying assembly 1 by being arranged above the conveying assembly 1, so that the material can be printed synchronously during the conveying process, and the material does not need to be moved to other stations for printing, and the printing efficiency is higher.

[0108] In some embodiments, the support structure 3b can be provided with a second moving mechanism 38, and the second moving mechanism 38 is used to move the spraying device 3a in the second direction Y. By arranging the second moving mechanism 38, the second moving mechanism 38 can adjust the position of the spraying device 3a in the second direction Y, so that the spraying device 3a can be aligned with the material on the conveying assembly 1 in the second direction Y. In addition, if a plurality of conveying assemblies 1 are arranged in the second direction Y, the spraying device 3a can also print the materials on the plurality of conveying assemblies 1 respectively.

[0109] Optionally, the second moving mechanism 38 can comprise a sliding rail and a sliding block, or can comprise a guide rail and a roller, etc., which can be selected according to actual conditions, and is not limited in the embodiment.

[0110] See also Figure 11 In some embodiments, the material carrier 2 includes a carrying platform 20 , which is slidably disposed on the transport component 1 along a first direction X. The carrying platform 20 is used to carry and absorb materials.

[0111] In this way, the carrying platform 20 adsorbs the material, so that when the carrying platform 20 transports the material along the first direction X, the material is fixed relative to the carrying platform 20, thereby preventing the material from shifting or even falling off during transportation, detection and printing, thereby improving the accuracy of the positioning detection device 4 in detecting the position information of the material, and the printing accuracy when the printing component 3 prints the material according to the position information of the material detected by the positioning detection device 4.

[0112] Optionally, the carrying platform 20 may include a vacuum adsorption device or a magnetic adsorption device, etc., which can be selected according to actual conditions and is not specifically limited in this embodiment.

[0113] In some embodiments, the material carrier 2 further includes a display device 21 . The display device 21 is disposed on a side of the carrying platform 20 . The display device 21 is used to display the state of the material adsorbed by the carrying platform 20 .

[0114] Thus, by providing the display device 21, the user can monitor the material adsorption status of the carrier platform 20 in real time. Even if the material adsorption is poor and may deviate or even detach, the user can stop printing in time and repair the carrier platform 20. In addition, the display device 21 is provided on the side of the carrier platform 20, which makes it easy for the user to observe the display device 21. At the same time, the space on the side of the carrier platform 20 is reasonably utilized, and no additional supporting structure is required to install the display device 21.

[0115] For example, when the carrying platform 20 includes a vacuum adsorption device, the display device 21 may include a vacuum display meter.

[0116] The following describes the process of printing a material using the printing device 100 of the present application:

[0117] Firstly, the material to be detected is placed on the bearing platform 20 of the material carrier 2, so that the bearing platform 20 adsorbs the material, and after the display device 21 displays that the adsorption of the material is normal, the conveying assembly 1 conveys the bearing platform 20 in the first direction X. After the material is moved below the visual detection module 41, the material is moved at a constant speed through the visual detection module 41, the visual detection module 41 obtains the position information of the material in the two-dimensional plane, and then the material is further moved below the height sensor 42, the height sensor 42 obtains the height position information of the material, and the positioning detection of the material is completed. After the conveying assembly 1 conveys the material whose positioning detection is completed below the spraying device 3a, the material is moved at a constant speed through the spraying device 3a, the spraying device 3a controls the corresponding spraying hole 320 to open to spray the material according to the position required to be printed on the material, and the printing of the material is completed after multiple spraying. After the printing of the material is completed, the conveying assembly 1 moves the bearing platform to the unloading position of the material.

[0118] The positioning detection device and the printing equipment disclosed in the embodiments of the present application are described in detail, and the principles and implementation modes of the present application are described by applying specific examples. The above description of the embodiments is only used to help understand the positioning detection device and the printing equipment and the core idea thereof; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation modes and application ranges will be changed, and the content of the specification should not be understood as a limitation of the present application.

Claims

1. A positioning detection device, characterized in that: The positioning detection device is applied to a printing device, wherein the printing device includes a transport component for transporting materials, and the positioning detection device includes: a support frame, the support frame being configured to be at least partially disposed above the transport assembly, the support frame having a first side and a second side opposite to each other along a first direction; a visual inspection module, disposed on the first side, the visual inspection module being configured to acquire an image of a material located on the transport assembly; A height sensor is provided on the second side, and is used to detect the height of the material.

2. The positioning detection device according to claim 1, characterized in that: The visual detection module includes a light source assembly and a visual sensor. The light source assembly includes a light source body, a first connecting member, and a second connecting member. The first connecting member and the second connecting member are arranged on the first side, and the first connecting member and the second connecting member are spaced apart along the second direction. The light source body is connected to the first connecting member and / or the second connecting member. The visual sensor is arranged on the first side and located between the first connecting member and the second connecting member. The second direction intersects with the first direction.

3. The positioning detection device according to claim 2, characterized in that: The first connecting member and the second connecting member extend along the height direction of the support frame, and a first clamping portion is provided on the light source body. The first connecting member and / or the second connecting member are provided with multiple second clamping portions, and the multiple second clamping portions are arranged at intervals along the height direction of the support frame. The first clamping portion can be detachably connected to any second clamping portion to adjust the position of the light source body relative to the first connecting member and the second connecting member.

4. The positioning detection device according to claim 2, characterized in that: The light source body includes a line scanning light source, and the light source body has at least a partial light-transmitting area. Along the height direction of the support frame, the visual sensor is located on the upper part of the light source body and the visual sensor is arranged corresponding to the light-transmitting area.

5. A printing device, characterized in that: The printing device includes a transport component, a printing component and a positioning detection device as described in any one of claims 1 to 4, the printing component and the positioning detection device are at least partially arranged above the transport component, the transport component is used to transport materials along the first direction, the printing component is located downstream of the positioning detection device along the first direction, and the printing component is configured to print the material based on the image of the material and the height of the material obtained by the positioning detection device.

6. The printing device according to claim 5, characterized in that The printing component includes a spraying device, which includes a mounting seat, a liquid storage component, a valve and a pumping component. The liquid storage component is arranged on the mounting seat, and the liquid storage component is used to store spray liquid. The valve is arranged on the mounting seat, and the valve is provided with multiple groups of spray hole groups. The multiple groups of spray hole groups are arranged at intervals along the first direction, and each group of the spray hole groups has multiple spray holes arranged at intervals along the second direction. In any one of the spray hole groups, the distance between at least one spray hole and each spray hole of at least one other spray hole group in the second direction is not zero. The pumping component is arranged on the mounting seat, and the pumping component is connected to the liquid storage component and the valve. The pumping component is used to pump the spray liquid in the liquid storage component to the valve.

7. The printing device according to claim 6, characterized in that The distance between any two spray holes of the valve in the second direction is not zero.

8. The printing device according to claim 7, characterized in that In the same spray hole group, the distance between two adjacent spray holes in the second direction is the same.

9. The printing device according to claim 8, characterized in that The number of the spray hole groups is a. In the same spray hole group, the distance between two adjacent spray holes in the second direction is D. In any two spray hole groups, the distance between the two spray holes closest to each other in the second direction is d, satisfying the relationship: d = (n / a) * D, where n < a, and n and a are both positive integers.

10. The printing device according to claim 6, characterized in that There are multiple valves, and the multiple valves are arranged along the first direction. The distance between any two spray holes of the multiple valves in the second direction is not zero.

11. The printing device according to any one of claims 5 to 10, characterized in that: The printing equipment also includes a material carrier, which includes a carrying platform and a display device. The carrying platform is slidably arranged on the transport component along the first direction, and the carrying platform is used to carry and adsorb the material. The display device is arranged on the side of the carrying platform, and the display device is used to display the situation of the carrying platform adsorbing the material.

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