Color code sensor and assembly method thereof

Abstract

The present application relates to the technical field of sensors, and in particular to a color code sensor and an assembly method thereof, which includes a housing, a partition plate is provided in the inner cavity of the housing, the partition plate divides the inner cavity of the housing into a control cavity for placing parts and a storage cavity for placing cables, a light-projecting component, a refractive component, a light-receiving component and a light-focusing component are provided in the control cavity, the light-projecting component, the refractive component and the light-focusing component are arranged in sequence to form an emitting light path, the light-focusing component, the refractive component and the light-receiving component form a receiving light path in sequence, a collection rack is provided on one side of the partition plate close to the control cavity, a first channel and a second channel are provided in the collection rack, the inner wall of the first channel and the inner wall of the second channel are both provided with a plurality of positioning grooves, the plurality of positioning grooves are used to position the light-projecting component, the refractive component, the light-receiving component and the light-focusing component. The present application has the effect of improving the assembly stability of the internal parts of the color code sensor.

Description

Technical Field

[0001] The present application relates to the technical field of sensors, and in particular to a color code sensor and an assembly method thereof. Background Art

[0002] At present, the color mark sensor is a sensor used to detect, distinguish and measure the color of objects. The working principle of the color mark sensor mainly includes the processes of light source emission, object reflection, photosensitive element reception and signal processing. It can realize the recognition and measurement of different colors through different optical filters, color spaces and algorithms. Color mark sensors are widely used in the field of automation, such as object recognition, quality control and sorting tasks on industrial production lines. It can quickly and accurately identify the color of objects and perform corresponding operations based on color information.

[0003] Color mark sensors are usually composed of a light emitter, a photodiode, a photosensitive element, a signal processing circuit, and an output interface. The light emitter is usually a light source, such as an LED, which is used to illuminate the object to be measured. The photosensitive element can be a photodiode, a photoresistor, or a phototransistor, etc., which is used to receive the light signal reflected or transmitted by the object to be measured. The light signal received by the photosensitive element is converted into an electrical signal after being processed by the signal processing circuit, and is output to an external device through the output interface for analysis and processing.

[0004] However, the existing color sensor has a complex internal structure and many internal parts. It is not stable when assembled in the housing, which is not conducive to assembly during production, identification of internal parts of the color sensor and subsequent maintenance. Since the measurement principle of the color sensor is to measure the color of an object by reflecting light, the quality and stability of the light source are very important to the stability of the color sensor. If the parts of the color sensor are not assembled stably in the housing, the reading of the color sensor will be unstable. This situation needs to be improved. Summary of the invention

[0005] In order to improve the stability of the assembly of internal components of a color mark sensor, the present application provides a color mark sensor and an assembly method thereof.

[0006] In the first aspect, the present application provides a color mark sensor, which adopts the following technical solution:

[0007] A color mark sensor comprises a shell, wherein a partition plate is provided in an inner cavity of the shell, wherein the partition plate divides the inner cavity of the shell into a control cavity for placing parts and a storage cavity for placing cables, wherein a light-projecting component, a refractive component, a light-receiving component and a light-focusing component are provided in the control cavity, wherein the light-projecting component, the refractive component and the light-focusing component are sequentially arranged to form an emitting light path, wherein the light-focusing component, the refractive component and the light-receiving component sequentially form a receiving light path, wherein an induction rack is provided on a side of the partition plate close to the control cavity, wherein a first channel and a second channel are provided in the induction rack, wherein the receiving light path is located in the first channel, and the emitting light path is located in the second channel, wherein inner walls of the first channel and the second channel are both provided with a plurality of positioning grooves, wherein the plurality of positioning grooves are used to position the light-projecting component, the refractive component, the light-receiving component and the light-focusing component.

[0008] By adopting the above technical scheme, the shell is divided into a control cavity and a storage cavity by a partition plate, and the cables and parts are divided and summarized. A summary rack is fixed on the side of the partition plate close to the control cavity, and a plurality of positioning grooves are provided on the summary rack. The positioning grooves are dispersedly arranged on the summary rack so that the light-projecting component, the refracting component, the light-receiving component and the light-focusing component are all fixed at preset positions, so that the light-projecting component, the refracting component and the light-focusing component are arranged in sequence to form an emitting light path, and the light-focusing component, the refracting component and the light-receiving component form a receiving light path in sequence. The scheme in the present application partitions the inner cavity of the shell by a partition plate to improve the situation in which the normal use of the parts is affected by the clutter of the internal cables, and then the parts of the color mark sensor are limited and fixed by the summary rack and the plurality of positioning grooves provided on the summary rack, so that the overall structure of the color mark sensor is compact and orderly, which is beneficial to improving the stability of the assembly of the internal parts of the color mark sensor.

[0009] Optionally, the light-projecting component includes an emitting PCBA board, an LED light source arranged on the emitting PCBA board, and an emitting lens; the refracting component includes a fully reflective lens and a semi-reflective lens; the light-receiving component includes a receiving PCBA board; the focusing component includes a condenser and a through hole arranged on the shell and for the condenser to be embedded; the fully reflective lens and the semi-reflective lens are arranged in parallel so that the fully reflective lens, the semi-reflective lens and the condenser are located in the same vertical optical path, and light is projected onto the object to be measured through the vertical optical path, and the semi-reflective lens transmits the light reflected by the object to be measured to the receiving optical path.

[0010] By adopting the above technical solution, the LED light source emits light, and the light passes through the emitting lens and then shines on the fully reflective lens, which reflects the light onto the semi-reflective lens. Among them, part of the light directly penetrates the semi-reflective lens and is projected onto the condenser, so that the light is projected on the object to be measured; the other part of the light is reflected onto the receiving PCBA board. At this time, the light waiting to be reflected back by the object to be measured is reflected on the receiving PCBA board through the semi-reflective lens and received by the receiving PCBA board. The two parts of light are combined and the receiving PCBA board is triggered to convert the optical signal into an electrical signal and output a switching value, which is beneficial to improve the color recognition accuracy of the color sensor.

[0011] Optionally, a collimating lens group is also provided in the control cavity, and the collimating lens group includes a first collimating lens, a second collimating lens and a connecting part for connecting the first collimating lens and the second collimating lens, and the induction frame is provided with a clamping groove for clamping the connecting part, the first collimating lens is located in the emitting light path, and the second collimating lens is located in the receiving light path. The LED light source emits light, and the light passes through the emitting lens and the first collimating lens in sequence and then irradiates the fully-reflective lens. The light reflected by the object to be measured passes through the condenser, the semi-reflective lens and the second collimating lens in sequence and is received by the receiving PCBA board.

[0012] By adopting the above technical scheme, the light emitted by the LED light source passes through the first collimating lens to form a parallel light path, and the light reflected by the object to be measured passes through the second collimating lens to form a parallel light path, which is beneficial to improving the detection accuracy of the color mark sensor, and a clamping groove for the connecting part to be embedded is provided on the induction frame to limit the connecting part, and the side of the first collimating lens away from the connecting part is clamped by the corresponding positioning groove, and the side of the second collimating lens away from the connecting part is clamped by the corresponding positioning groove, which is beneficial to improving the stability of the collimating lens group fixed on the induction frame.

[0013] Optionally, an operating component is provided on the shell, and the operating component includes a key panel, a digital tube display panel and a key sticker; a display window is provided on the shell for placing the digital tube display panel; the key sticker is provided on the outer wall of the shell and is used to cover the display window; a fixing groove for embedding the key panel is provided on the side of the summary rack close to the display window; a first fixing hole is provided on the side of the summary rack 11 close to the key panel; a second fixing hole connected to the first fixing hole is provided on the key panel; a third fixing hole connected to the second fixing hole is provided on the digital tube display panel; a self-tapping screw is provided on the digital tube display panel, and the self-tapping screw passes through the third fixing hole and the second fixing hole in sequence and is threadedly connected to the first fixing hole.

[0014] By adopting the above technical solution, the user sets parameters for the color mark sensor through the operating component, and a fixing groove for the keypad to be embedded is provided on the induction frame 11 to improve the stability of the keypad installed in the shell, and then the digital tube display panel is fixed on the display window, wherein the digital tube display panel and the keypad are communicatively connected, and then the self-tapping screws are sequentially passed through the third fixing hole, the second fixing hole and then threadedly connected with the first fixing hole, which is beneficial to improve the stability of the digital tube display panel and the keypad assembled on the shell.

[0015] Optionally, a PCBA mainboard is arranged on a side of the induction rack away from the partition plate, a first positioning column is arranged on a side of the induction rack close to the PCBA mainboard, and the PCBA mainboard is provided with a first positioning hole for the first positioning column to pass through.

[0016] By adopting the above technical solution, the PCBA main board passes through the first positioning column through the first positioning hole, so that the PCBA main board is installed on the induction frame and positioned. This is not only conducive to improving the stability of the PCBA main board installed in the shell, but also when the color mark sensor shakes, the PCBA main board is restricted by the first positioning column and cannot interfere with the transmitting light path or the receiving light path, thereby improving the stability of the assembly of internal components of the color mark sensor, and does not affect the normal operation of the device sensor under the action of external force.

[0017] Optionally, a shading plate for preventing interference is provided between the PCBA mainboard and the induction rack, a second positioning column is provided on a side of the induction rack close to the shading plate, and the shading plate is provided with a second positioning hole for the second positioning column to pass through.

[0018] By adopting the above technical solution, in order to reduce the interference to the light, a shading plate is installed between the induction rack and the PCBA mainboard. The shading plate passes through the second positioning hole and the second positioning column and is fixed on the induction rack, covering the transmitting light path and the receiving light path, constructing a relatively dark space for the light, reducing the interference of other components that can generate light on the normal operation of the transmitting light path and the receiving light path, which is beneficial to improving the accuracy of the color mark sensor detection.

[0019] Optionally, a first cover body for covering the control cavity is provided on the shell, and a second cover body for covering the storage cavity is provided on the shell, the first cover body is parallel to the partition plate, and the second cover body is parallel to the first cover body.

[0020] By adopting the above technical solution, the first cover body is used to cover the control cavity, and the second cover body is used to cover the storage cavity. The assembly method of the first cover body, the shell body and the second cover body is conducive to improving the assembly efficiency of parts and cables. The first cover body and the second cover body are then assembled on the shell. When the color mark sensor fails, the color mark sensor can be repaired by disassembling the first cover body and / or the second cover body, which is conducive to improving the maintenance efficiency of the color mark sensor.

[0021] Optionally, a plurality of cable management blocks are provided on the inner wall of the storage cavity, and a cable management groove for the cables to pass through is formed between two adjacent cable management blocks.

[0022] By adopting the above technical solution, a number of cable management blocks are distributed at intervals on the inner wall of the storage cavity, which is conducive to organizing the cables in the storage cavity and reducing the cable clutter. It is not only conducive to improving the safety of the color mark sensor, but also to reasonably organize the cables, which is conducive to subsequent maintenance work.

[0023] Optionally, the shell is provided with a wire hole for the cable to pass through, and the inner cavity of the shell is provided with a wire buckle for storing the cable.

[0024] By adopting the above technical solution, in order to improve the stability of the cable installed inside the shell, a corresponding wire buckle is installed in the shell, which is beneficial to improve the stability of the cable connection. The wire buckle can achieve a tighter connection by forming a buckle between the cable and the shell.

[0025] In a second aspect, the present application provides a method for assembling a color code sensor, which adopts the following technical solution:

[0026] A method for assembling a color mark sensor comprises the following steps:

[0027] S1, installing the keypad and the digital tube display panel in the housing, the self-tapping screws sequentially pass through the third fixing hole and the second fixing hole and are threadedly connected with the first fixing hole, thereby fixing the keypad and the digital tube display panel on the housing;

[0028] S2, fixing the transmitting lens, the fully reflective lens, the semi-reflective lens, the collimating lens group, the transmitting PCBA board and the receiving PCBA board on the induction frame in sequence by dispensing glue;

[0029] S3, passing the shading plate through the second positioning column, and then installing the shading plate above the induction rack;

[0030] S4, passing the PCBA mainboard through the first positioning column, and then installing the PCBA mainboard above the shading plate;

[0031] S5, ultrasonically welding the first cover body and the second cover body to the shell body respectively.

[0032] By adopting the above technical solution, first, the keypad and the digital tube display panel are fixed to the housing by self-tapping screws, and secondly, the components are assembled in the corresponding mounting positions in sequence, and then, the shading plate and the PCBA main board are fixed to the induction rack in sequence, and finally, the first cover body and the second cover body are fixed to the housing, so as to achieve the purpose of improving the assembly stability of the internal components of the color mark sensor.

[0033] In summary, the present application includes at least one of the following beneficial technical effects:

[0034] 1. The light-casting component, the refractive component and the light-collecting component are sequentially arranged to form an emitting light path, and the light-collecting component, the refractive component and the light-receiving component sequentially form a receiving light path. The solution in this application partitions the inner cavity of the shell through a partition plate to improve the situation where the normal use of the components is affected by the internal cables being messy, and then the components of the color mark sensor are limited and fixed through the induction rack and the several positioning grooves opened on the induction rack, so that the overall structure of the color mark sensor is compact and orderly, which is conducive to improving the stability of the assembly of the internal components of the color mark sensor;

[0035] 2. The light emitted by the LED light source passes through the first collimating lens to form a parallel light path, and the light reflected by the object to be measured passes through the second collimating lens to form a parallel light path, which is beneficial to improve the detection accuracy of the color mark sensor. The connection part is limited by the clamping groove, which is beneficial to improve the stability of the collimating lens group fixed on the induction frame;

[0036] 3. In order to reduce the interference to the light, a shading plate is installed between the induction rack and the PCBA mainboard to cover the transmitting light path and the receiving light path, build a relatively dark space for the light, reduce the interference of other components that can generate light on the normal operation of the transmitting light path and the receiving light path, which is beneficial to improve the accuracy of color mark sensor detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the structure of the housing and the induction frame in the embodiment of the present application;

[0038] Figure 2 is a schematic diagram of the structure of the housing and the partition plate in an embodiment of the present application;

[0039] Figure 3 is an exploded view of the housing and the light-projecting component in the embodiment of the present application;

[0040] Figure 4 is a schematic diagram of a transmitting optical path and a receiving optical path in an embodiment of the present application;

[0041] Figure 5is a schematic diagram of the structure of the support frame and the refractive component in an embodiment of the present application;

[0042] Figure 6 is an exploded view of the collimating lens group and the housing in the embodiment of the present application;

[0043] Figure 7 It is an exploded view of the keypad and the digital tube display panel in the embodiment of the present application;

[0044] Figure 8 is a cross-sectional view of a keypad and a housing in an embodiment of the present application;

[0045] Fig. 9 It is an exploded view of the sunshade and PCBA mainboard in the embodiment of the present application;

[0046] Fig.10 is an exploded view of the first cover body and the second cover body in the embodiment of the present application;

[0047] Fig.11 It is an exploded view of the wire buckle and the housing in the embodiment of the present application.

[0048] Description of reference numerals:

[0049] 1. Shell; 2. Partition plate; 3. Control chamber; 4. Storage chamber; 5. Light-casting component; 6. Refraction component; 7. Light-receiving component; 8. Concentrating component; 9. Transmitting light path; 10. Receiving light path; 11. Induction rack; 12. First channel; 13. Second channel; 14. Positioning groove; 15. Transmitting PCBA board; 16. Transmitting lens; 17. Fully reflective lens; 18. Half-reflective lens; 19. Receiving PCBA board; 21. Condenser; 22. Through hole; 23. Vertical light path; 24. First collimating lens; 25. Second collimating lens; 26 , connecting part; 27, snap-in slot; 28, keypad; 29, digital tube display board; 30, key sticker; 31, display window; 32, fixing slot; 33, first fixing hole; 34, second fixing hole; 35, third fixing hole; 36, self-tapping screw; 37, PCBA mainboard; 38, first positioning column; 39, first positioning hole; 40, shading plate; 41, second positioning column; 42, second positioning hole; 43, first cover; 44, second cover; 45, cable management block; 46, cable management slot; 47, lead hole; 48, cable buckle. DETAILED DESCRIPTION

[0050] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0051] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0052] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0053] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0054] Example 1

[0055] The embodiment of the present application discloses a color mark sensor.

[0056] Reference Figure 1 and Figure 2A color mark sensor includes a shell 1, a partition plate 2 is arranged in the shell 1, and the partition plate 2 divides the inner cavity of the shell 1 into a control cavity 3 and a storage cavity 4, and divides and organizes the cables and parts to improve the situation that the normal use of the parts is affected by the internal cable disorder. Among them, the parts are placed in the control cavity 3, and the cables are placed in the storage cavity 4. The control cavity 3 is equipped with a light-projecting component 5, a refractive component 6, a light-receiving component 7 and a focusing component 8. In order to improve the stability of the parts in the color mark sensor fixed in the shell 1, a head induction rack 11 is fixed on the side of the partition plate 2 close to the control cavity 3, and the position of each component is positioned by the induction rack 11 to improve the stability of the parts assembled in the shell 1.

[0057] Among them, refer to Figure 3 and Figure 4 , the light-projecting component 5, the refractive component 6 and the focusing component 8 are sequentially arranged to form an emitting light path 9, and the focusing component 8, the refractive component 6 and the light-receiving component 7 are sequentially arranged to form a receiving light path 10. A first channel 12 and a second channel 13 for the flow of light are provided in the induction frame 11, the receiving light path 10 corresponds to the first channel 12, and the emitting light path 9 corresponds to the second channel 13. In addition, a plurality of positioning grooves 14 are provided on the inner wall of the first channel 12 and the inner wall of the second channel 13, and the plurality of positioning grooves 14 are used to position the light-projecting component 5, the refractive component 6, the light-receiving component 7 and the focusing component 8, and then the various components are directly integrated on the inner wall of the shell 1 by means of glue dispensing, which is conducive to reducing the structural complexity of the shell 1, thereby reducing the complexity of the production mold and facilitating manufacturing. The scheme in the present application has the advantages of compact structure and high amplification efficiency.

[0058] Specifically, Figure 4 and Figure 5 As shown, the light-projecting component 5 includes an emitting PCBA board 15, an LED light source and an emitting lens 16, and the LED light source is fixed on the emitting PCBA board 15. The refractive component 6 includes a fully reflective lens 17 and a semi-reflective lens 18. The light-receiving component 7 includes a receiving PCBA board 19. The focusing component 8 includes a condenser 21 and a through hole 22 opened on the housing 1 and for the condenser 21 to enter. The fully reflective lens 17 and the semi-reflective lens 18 are arranged in parallel. It should be noted that the fully reflective lens 17 is located on the extension line of the first channel 12, and the semi-reflective lens 18 is located on the extension line of the second channel 13. The emitting PCBA board 15 and the emitting lens 16 are successively clamped in the first channel 12 through the positioning groove 14, and the receiving PCBA board 19 is clamped in the second channel 13 through the positioning groove 14. So that the fully reflective lens 17, the semi-reflective lens 18 and the condenser 21 are located in the same vertical optical path 23, the light enters the vertical optical path 23 through the emitting optical path 9, and then is projected onto the object to be measured through the vertical optical path 23, and the semi-reflective lens 18 emits the light reflected by the object to be measured to the receiving optical path 10.

[0059] Reference Figure 5 and Figure 6 , a collimating lens group is further installed in the control cavity 3, and the collimating lens group includes a first collimating lens 24, a second collimating lens 25 and a connecting portion 26 for connecting the first collimating lens 24 and the second collimating lens 25. Among them, the first collimating lens 24 is located in the transmitting light path 9, and the second collimating lens 25 is located in the receiving light path 10. In order to improve the stability of the collimating lens group when assembled on the induction frame 11, a clamping groove 27 for clamping the connecting portion 26 is provided on the induction frame 11, and the end of the first collimating lens 24 away from the connecting portion 26 is clamped in the corresponding positioning groove 14, and the end of the second collimating lens 25 away from the connecting portion 26 is clamped in the corresponding positioning groove 14.

[0060] The LED light source emits light, and the light passes through the emitting lens 16 and then passes through the first collimating lens 24 to form a parallel light path, and then shines on the full-reflective lens 17, which reflects the light onto the semi-reflective lens 18. Part of the light directly penetrates the semi-reflective lens 18 and is projected onto the condenser 21, so that the light is projected onto the object to be measured; the other part of the light is reflected to the receiving PCBA board 19 and received by the receiving PCBA board 19. At this time, the light reflected back by the object to be measured is reflected by the semi-reflective lens 18 on the second collimating lens 25 to form a parallel light path, and then received by the receiving PCBA board 19. The two parts of light are combined to trigger the receiving PCBA board 19, wherein the receiving PCBA board 19 is a photosensitive IC. The optical signal is converted into an electrical signal and the switching value is output, which is conducive to improving the color recognition accuracy of the color sensor.

[0061] Reference Figure 7 and Figure 8 The housing 1 is provided with an operating assembly for users to adjust parameters. The operating assembly includes a keypad 28, a digital tube display board 29 and a key sticker 30. The housing 1 is provided with a display window 31 for placing the digital tube display board 29. In order to improve the safety of users operating the digital tube display board 29 and the aesthetics of the tag sensor, the key sticker 30 is installed on the outer wall of the housing 1 and is used to cover the display window 31. In order to improve the stability of the keypad 28 and the digital tube display board 29 installed in the housing 1, a fixing groove 32 for the keypad 28 to be embedded is provided on the side of the induction rack 11 close to the display window 31. The keypad 28 is fixed in the housing 1 through the induction rack 11, and the digital tube display board 29 is fixed on the display window 31, and then the key sticker 30 covers the digital tube display board 29.

[0062] Specifically, the keypad 28 and the digital tube display panel 29 are communicated with each other. In order to further improve the tightness between the keypad 28 and the digital tube and the housing 1, a first fixing hole 33 is provided on the induction frame 11 close to the keypad 28. A second fixing hole 34 connected to the first fixing hole 33 is provided on the keypad 28. A second fixing hole 34 connected to the second fixing hole 34 is provided on the digital tube display panel 29. Self-tapping screws are then passed through the third fixing hole 35 and the second fixing hole 34 in sequence and then threadedly connected to the first fixing hole 33, so that the digital tube display panel 29 and the keypad 28 are fixed on the housing 1.

[0063] Reference Fig. 9 and Fig.10 , a PCBA mainboard 37 is installed on the side of the induction rack 11 away from the partition plate 2, and a first positioning column 38 is fixed on the side of the induction rack 11 close to the PCBA mainboard 37, and a first positioning hole 39 is opened on the PCBA mainboard 37 for the first positioning column 38 to pass through. The PCBA mainboard 37 passes through the first positioning column 38 through the first positioning hole 39, so that the PCBA mainboard 37 is installed on the induction rack 11, and the PCBA mainboard 37 is positioned. When the color mark sensor shakes, the PCBA mainboard 37 is restricted by the first positioning column 38 and cannot interfere with the emission light path 9 or the receiving light path 10. In order to reduce the interference with the light, a light shielding plate 40 for preventing interference is installed between the PCBA mainboard 37 and the induction rack 11, and a second positioning column 41 is installed on the side of the induction rack 11 close to the light shielding plate 40, and a first positioning hole 39 is opened on the light shielding plate 40 for the second positioning column 41 to pass through. The shading plate 40 covers the transmitting light path 9 and the receiving light path 10 to create a relatively dark space for the light, thereby reducing the interference of other components capable of generating light on the normal operation of the transmitting light path and the receiving light path 10, which is beneficial to improving the accuracy of the color mark sensor detection.

[0064] Reference Fig. 9, a first cover 43 for covering the control cavity 3 is installed on the shell 1, and a second cover 44 for covering the storage cavity 4 is installed on the shell 1. The first cover 43 is parallel to the partition plate 2, and the second cover 44 is parallel to the first cover 43. When assembling the color mark sensor, first assemble the parts on the induction rack 11 in the shell 1, then fix the shading plate 40 and the PCBA main board 37 on the induction rack 11 in turn, place the cables in the storage cavity, and then cover the control cavity 3 with the first cover 43, and cover the storage cavity 4 with the second cover 44. The first cover 43 and the second cover 44 can be fixed to the shell 1 by ultrasonic welding. The assembly method of the first cover body 43, the shell body 1 and the second cover body 44 is conducive to improving the assembly efficiency of parts and cables. After the parts and cables are fixed to the shell body 1, the first cover body 43 and the second cover body 44 are assembled on the shell body 1. When the color mark sensor fails, the color mark sensor can be repaired by disassembling the first cover body 43 and / or the second cover body 44, which is conducive to improving the maintenance efficiency of the color mark sensor.

[0065] Specifically, Fig.10 and Fig.11 As shown, in order to improve the situation of cable clutter, the solution in this application has several cable management blocks 45 distributed at intervals on the inner wall of the storage cavity 4, which is conducive to organizing the cables in the storage cavity 4 and reducing the situation of cable clutter. It is not only conducive to improving the safety of the color mark sensor, but also to reasonably organize the cables, which is conducive to subsequent maintenance work. The housing 1 is provided with a lead hole 47 for the cable to pass through. In order to improve the stability of the cable installed inside the housing 1, a corresponding wire buckle 48 is installed in the housing 1, which is conducive to improving the stability of the cable connection. The wire buckle 48 can achieve a tighter connection by forming a buckle between the cable and the housing 1.

[0066] The implementation principle of a color mark sensor in the embodiment of the present application is as follows: the housing 1 is divided into a control chamber 3 and a storage chamber 4 by a partition plate 2, and the cables and parts are divided and summarized. A summary rack 11 is fixed on the side of the partition plate 2 close to the control chamber 3, and a plurality of positioning grooves 14 are provided on the summary rack 11, and the positioning grooves 14 are dispersedly arranged on the summary rack 11, so that the light-projecting component 5, the refraction component 6, the light-receiving component 7 and the focusing component 8 are all fixed at preset positions. The user sets the parameters of the color mark sensor through the operating component, fixes the key board 28 and the digital tube display board 29 on the housing 1 with self-tapping screws, and then covers the digital tube display board 29 with the key sticker 30 to protect the digital tube display board 29. In order to reduce the interference with the light, a shading plate 40 is installed between the summary rack 11 and the PCBA mainboard 37, and the shading plate 40 is fixed on the summary rack 11 through the second positioning hole 42 and the second positioning column 41, so as to reduce the interference with the normal operation of the emission light path 9 and the receiving light path 10 of other components that can generate light. The PCBA mainboard 37 passes through the first positioning hole 39 through the first positioning column 38, so that the PCBA mainboard 37 is installed on the induction rack 11. When the color mark sensor shakes, the PCBA mainboard 37 is restricted by the first positioning column 38 and cannot interfere with the transmitting optical path 9 or the receiving optical path 10, thereby improving the stability of the assembly of the internal parts of the color mark sensor, and does not affect the normal operation of the device sensor under the action of external force. Specifically, the solution in the present application partitions the inner cavity of the shell 1 through the partition plate 2 to improve the situation where the normal use of the parts is affected by the clutter of cables inside the shell 1, and then the parts of the color mark sensor are limited and fixed through the induction rack 11 and the plurality of positioning grooves 14 opened on the induction rack 11, so that the overall structure of the color mark sensor has the advantages of compact structure and high amplification efficiency. The solution in the present application can improve the stability of the assembly of the internal parts of the color mark sensor.

[0067] Example 2

[0068] The embodiment of the present application discloses a method for assembling a color mark sensor.

[0069] The above describes the embodiment of the present application from the perspective of the color mark sensor structure. The following describes the embodiment of the present application from the perspective of the assembly method of the color mark sensor. A method for assembling a color mark sensor includes the following steps:

[0070] S1, install the keypad 28 and the digital tube display panel 29 in the housing 1, and the self-tapping screws 36 pass through the third fixing hole 35 and the second fixing hole 34 in sequence and then are threadedly connected with the first fixing hole 33, thereby fixing the keypad 28 and the digital tube display panel 29 on the housing 1;

[0071] Among them, the key panel 28 and the digital tube display panel 29 are placed into the shell 1 in sequence, and the key panel 28 and the digital tube display panel 29 are fixed to the shell 1 by self-tapping screws 36; the self-tapping screws 36 are used as an example of an implementation mode of this application, and the key panel 28 and the digital tube display panel 29 can also be fixed in the shell 1 by using connection methods such as snap connection, riveting, hinged connection, and fixed connection.

[0072] S2, fix the transmitting lens 16, the fully reflective lens 17, the semi-reflective lens 18, the collimating lens group, the transmitting PCBA board 15 and the receiving PCBA board 19 on the induction frame 11 in sequence by dispensing glue;

[0073] Among them, the components inside the color mark sensor are fixed on the induction frame 11 by glue dispensing in sequence. The components are first embedded in the corresponding positioning grooves 14 for positioning, and then the components are fixed by glue dispensing to reduce the possibility of misalignment of the components during the use of the color mark sensor.

[0074] S3, passing the shading plate 40 through the second positioning column 41, and then installing the shading plate 40 above the induction rack 11;

[0075] The shading plate 40 passes through the second positioning column 41 through the second positioning hole 42, so that the shading plate 40 is fixed above the induction rack 11, protecting the first channel 12 and the second channel 13 starting from the induction rack 11, and reducing the influence of other light on the detection work of the color mark sensor.

[0076] S4, passing the PCBA main board 37 through the first positioning column 38, and then installing the PCBA main board 37 above the shading plate 40;

[0077] Among them, the PCBA main board 37 passes through the first positioning column 38 through the first positioning hole 39, so that the PCBA main board 37 is fixed above the induction rack 11. When the color mark sensor shakes, the PCBA main board 37 is restricted by the first positioning column 38 and it is difficult to interfere with the transmitting optical path 9 or the receiving optical path 10.

[0078] S5, ultrasonically welding the first cover body 43 and the second cover body 44 to the housing 1 respectively.

[0079] When the components and cables are fixed in the inner cavity of the shell 1, the first cover 43 covers the control cavity 3, and the second cover 44 covers the storage cavity. The first cover 43 and the second cover 44 are respectively welded to the shell 1 by ultrasonic welding.

[0080] The implementation principle of the assembly method of a color mark sensor in the embodiment of the present application is as follows: first, the keypad 28 and the digital tube display panel 29 are fixed to the housing 1 by self-tapping screws, and then the components are assembled in the corresponding mounting positions in sequence, and then the shading plate 40 and the PCBA mainboard 37 are fixed to the induction frame 11 in sequence, and finally the first cover body 43 and the second cover body 44 are fixed to the housing 1, so as to achieve the purpose of improving the assembly stability of the internal components of the color mark sensor. It should be noted that the assembly method of the color mark sensor is applied to the color mark sensor in the aforementioned embodiment, and will not be repeated here.

[0081] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A color mark sensor, comprising a housing (1), It is characterized in that The inner cavity of the housing (1) is provided with a partition plate (2), and the partition plate (2) divides the inner cavity of the housing (1) into a control cavity (3) for placing parts and components and a storage cavity (4) for placing cables. The control cavity (3) is provided with a light-emitting component (5), a refractive component (6), a light-receiving component (7) and a light-focusing component (8). The light-emitting component (5), the refractive component (6) and the light-focusing component (8) are sequentially arranged to form an emitting light path (9), and the light-focusing component (8), the refractive component (6) and the light-receiving component (7) are sequentially arranged to form a receiving light path (10). The partition plate ( 2) A summarizing frame (11) is provided on one side close to the control cavity (3), a first channel (12) and a second channel (13) are provided in the summarizing frame (11), the receiving optical path (10) is located in the first channel (12), the transmitting optical path (9) is located in the second channel (13), and a plurality of positioning grooves (14) are provided on the inner wall of the first channel (12) and the inner wall of the second channel (13), and the plurality of positioning grooves (14) are used to position the light-projecting component (5), the refractive component (6), the light-receiving component (7) and the light-focusing component (8); The housing (1) is provided with an operating assembly, the operating assembly comprising a keypad (28), a digital tube display panel (29) and a key sticker (30); the housing (1) is provided with a display window (31) for placing the digital tube display panel (29); the key sticker (30) is arranged on the outer wall of the housing (1) and is used to cover the display window (31); and the induction rack (11) is provided with a fixing groove (32) for embedding the keypad (28) on a side close to the display window (31); A PCBA main board (37) is arranged on the side of the induction rack (11) away from the partition plate (2), a first positioning column (38) is arranged on the side of the induction rack (11) close to the PCBA main board (37), and the PCBA main board (37) is provided with a first positioning hole (39) for the first positioning column (38) to pass through; A light shielding plate (40) for preventing interference is arranged between the PCBA mainboard (37) and the induction rack (11); a second positioning column (41) is arranged on a side of the induction rack (11) close to the light shielding plate (40); and the light shielding plate (40) is provided with a second positioning hole (42) for the second positioning column (41) to pass through; The housing (1) is provided with a first cover body (43) for covering the control chamber (3), and the housing (1) is provided with a second cover body (44) for covering the storage chamber (4), the first cover body (43) and the partition plate (2) are parallel, and the second cover body (44) and the first cover body (43) are parallel; The inner wall of the storage cavity (4) is provided with a plurality of wire management blocks (45), and a wire management groove (46) for the wires to pass through is formed between two adjacent wire management blocks (45); The housing (1) is provided with a lead-in hole (47) for the cable to pass through, and the inner cavity of the housing (1) is provided with a wire buckle (48) for storing the cable.

2. A color mark sensor according to claim 1, It is characterized in that The light-projecting component (5) comprises a transmitting PCBA board (15), an LED light source arranged on the transmitting PCBA board (15), and a transmitting lens (16); the refractive component (6) comprises a fully reflective lens (17) and a semi-reflective lens (18); the light-receiving component (7) comprises a receiving PCBA board (19); the light-collecting component (8) comprises a condenser (21) and a through hole (22) arranged on the housing (1) and for the condenser (21) to be embedded; the fully reflective lens (17) and the semi-reflective lens (18) are arranged in parallel so that the fully reflective lens (17), the semi-reflective lens (18) and the condenser (21) are located in the same vertical optical path (23); light is projected onto the object to be measured through the vertical optical path (23); and the semi-reflective lens (18) emits light reflected by the object to be measured to the receiving optical path (10).

3. A color mark sensor according to claim 2, It is characterized in that A collimating lens group is also provided in the control cavity (3), and the collimating lens group includes a first collimating lens (24), a second collimating lens (25) and a connecting portion (26) for connecting the first collimating lens (24) and the second collimating lens (25). The induction frame (11) is provided with a clamping groove (27) for clamping the connecting portion (26). The first collimating lens (24) is located in the emitting light path (9), and the second collimating lens (25) is located in the receiving light path (10). The LED light source emits light, and the light passes through the emitting lens (16) and the first collimating lens (24) in sequence, and then irradiates the full-reflecting lens (17). The light reflected by the object to be measured passes through the condenser (21), the semi-reflecting lens (18), and the second collimating lens (25) in sequence, and then is received by the receiving PCBA board (19).

4. A color mark sensor according to claim 1, It is characterized in that The induction rack (11) is provided with a first fixing hole (33) on one side close to the key plate (28); the key plate (28) is provided with a second fixing hole (34) connected to the first fixing hole (33); the digital tube display board (29) is provided with a third fixing hole (35) connected to the second fixing hole (34); the digital tube display board (29) is provided with a self-tapping screw (36); the self-tapping screw (36) passes through the third fixing hole (35) and the second fixing hole (34) in sequence and is threadedly connected to the first fixing hole (33).

5. A method for assembling a color mark sensor, applied to the color mark sensor according to any one of claims 1 to 4, It is characterized in that The steps include: S1, installing the keypad (28) and the digital tube display panel (29) in the housing (1), and threading the self-tapping screw (36) through the third fixing hole (35) and the second fixing hole (34) in sequence and then connecting with the first fixing hole (33), thereby fixing the keypad (28) and the digital tube display panel (29) on the housing (1); S2, fixing the transmitting lens (16), the fully reflective lens (17), the semi-reflective lens (18), the collimating lens group, the transmitting PCBA board (15) and the receiving PCBA board (19) on the induction frame (11) in sequence by dispensing glue; S3, passing the shading plate (40) through the second positioning column (41), and then installing the shading plate (40) above the induction rack (11); S4, passing the PCBA mainboard (37) through the first positioning column (38), and then installing the PCBA mainboard (37) above the light shielding plate (40); S5. Ultrasonic welding the first cover body (43) and the second cover body (44) to the shell (1) respectively.

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