Carton bottom surface four-edge visual inspection equipment

Abstract

The utility model relates to visual inspection equipment for four edges on the bottom surface of a carton, which belongs to the field of visual inspection and comprises a clamping and conveying device group, a fluency strip group and an optical device group. The clamping conveying device set comprises a clamping part, a clamping part fixing unit and a clamping adjusting unit. The clamping part is composed of two synchronous gear belt sets which are parallel and symmetrical at intervals, and the synchronous gear belt sets are installed on the clamping adjusting unit through the clamping part fixing unit. The two clamping adjusting units synchronously drive the two synchronous gear belt sets to move reversely, and the two synchronous gear belt sets clamp a carton. The two synchronous gear belt sets convey cartons through reverse rotation. The fluent strip group is used for carrying a carton and is a sectional fluent strip group; the optical device group comprises four camera fixing assemblies; the four camera fixing assemblies detect the front edge, the rear edge, the left edge and the right edge of the bottom face of the carton correspondingly. The device can realize intelligent visual inspection of the four edges of the bottom surface of the carton, and ensures that the four edges of the bottom surface of the carton leave a factory under the condition of no defect.

Description

Technical Field

[0001] The utility model relates to the field of visual inspection, in particular to a device for visual inspection of the four edges of a carton bottom surface. Background Art

[0002] At present, the inspection of the appearance of cartons on the production line is generally the inspection of the front and back, two sides, top surface, bottom surface, vertical edges, and four edges of the top surface, but there is a lack of inspection of the four edges of the bottom surface of the carton. The reasons are: 1. Due to the heavy weight of a full box of products, when inspecting the bottom surface of the carton, the inspection equipment needs to install smooth strips or side strips with a small friction coefficient on both sides of the bottom surface of the carton to support the bottom of the carton, and use the clamping and conveying devices on both sides of the carton to provide the carton with forward power; it can be seen that the smooth strips or side strips with a small friction coefficient installed in the inspection equipment block the edges on both sides of the bottom surface of the carton. 2. The inspection of the bottom surface of the carton requires that the bottom surface of the carton be exposed as much as possible. The optical solution used for the inspection of the bottom surface of the carton occupies most of the space at the bottom of the equipment, and there is no space for the optical solution required for the inspection of the four edges of the bottom surface of the carton. Based on the above two reasons, there is a lack of inspection equipment for the four edges of the bottom surface of the carton on the market. Utility Model Content

[0003] In view of the deficiencies existing in the above-mentioned prior art, the utility model provides a visual inspection device for the four edges of the bottom surface of a carton, which mainly solves the problem of intelligent visual inspection of the four edges of the bottom surface of a carton on the last section of the production line before a full box of products leaves the factory, to ensure that the four edges of the bottom surface of the carton leave the factory without any defects.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A visual inspection device for the four edges of the bottom surface of a carton, the visual inspection device comprising a clamping and conveying device group, a smooth strip group, and an optical device group;

[0006] The clamping and conveying device group includes a clamping part, a clamping part fixing unit, and a clamping adjustment unit; the clamping part is composed of two synchronous gear belt groups that are parallel and spaced symmetrically, and the synchronous gear belt group is installed on the clamping adjustment unit through the clamping part fixing unit; the two clamping adjustment units synchronously drive the two synchronous gear belt groups to move in the opposite direction, and the two synchronous gear belt groups clamp the carton; the two synchronous gear belt groups convey the carton by rotating in the opposite direction;

[0007] The smooth strip group is placed below the interval between the two synchronous gear belt groups, and is used to carry the cartons. The smooth strip group is a segmented smooth strip group;

[0008] The optical device group includes four camera fixing components, each of which includes a camera; the four camera fixing components are respectively placed at the front and rear ends and the middle of the left and right sides of the flow strip group, and are used to respectively detect the front edge, rear edge, left edge and right edge of the bottom surface of the carton.

[0009] Furthermore, the flow strip group includes multiple groups of flow strips and fixed frames; the fixed frames include multiple spaced support frames; the top of the support frames have two parallel groove tubes; the flow strips are installed on the groove tubes; and the length of the flow strips is smaller than the length of the carton, and the width of the support frames is smaller than the width of the carton.

[0010] Further, the synchronous gear belt set includes a servo motor, an upper fixed guard plate, a lower fixed guard plate, an encoder, a synchronous gear belt, a gear shaft, and a synchronous gear;

[0011] The left and right ends of the synchronous gear belt are respectively meshed and connected with the synchronous gear; the upper fixed guard plate and the lower fixed guard plate are respectively installed on the upper and lower ends of the synchronous gear belt; the servo motor is installed at one end of the top surface of the upper fixed guard plate, and the output shaft of the servo motor is connected to the center of the synchronous gear at this end to drive the synchronous gear to rotate; the encoder is installed on the bottom surface of the lower fixed guard plate to detect the rotation speed of the servo motor; the upper and lower ends of the synchronous gear at the other end are respectively connected to the upper fixed guard plate and the lower fixed guard plate through the gear shaft.

[0012] Furthermore, the synchronous gear belt set also includes a gear shaft slider, a top screw and a top screw fixing block;

[0013] The upper and lower ends of the synchronous gear are respectively fixed to the gear shaft slider through the gear shaft; the gear shaft slider can slide along the strip holes on the upper fixed guard plate and the lower fixed guard plate; the top screw fixing block is fixed to one end of the strip hole, and the top screw passes through the top screw fixing block to fix the gear shaft slider.

[0014] Furthermore, a plurality of clamping fixtures are installed on one side surface of the clamping portion fixing unit, and the plurality of clamping fixtures are divided into two parallel and spaced rows, and the clamping fixtures in the upper and lower rows clamp and fix the synchronous gear belt set.

[0015] Further, the clamping adjustment unit includes a locking block, a circle counter, a rotating handle, a front fixing plate, a slide rail, a slider, a left side plate, a slider bearing, a screw rod, a bearing fixing block, a right side plate, and a clamping base plate;

[0016] The front fixing plate, the left side plate and the right side plate are respectively fixed to the front end and the left and right side ends of the horizontally placed clamping base plate;

[0017] The slider bearing is threadedly mounted on the screw rod; one end of the screw rod passes through the center of the front fixed plate, the locking block and the circle counter in sequence and is connected to the rotating handle, and is fixed to the front fixed plate through the locking block; the other end of the screw rod is inserted into the bearing fixing block, and the bearing fixing block is fixed to the bottom surface of the clamping substrate; the two slide rails on the left and right sides of the screw rod are symmetrically mounted on the bottom surface of the clamping substrate; the slider is slidably mounted on the slide rail; the slider and the slider bearing are respectively connected to the clamping part fixing unit.

[0018] Furthermore, the visual detection equipment also includes a photoelectric group, which includes a photoelectric emission group and a photoelectric reflection group; the photoelectric emission group includes photoelectrics; the photoelectric reflection group includes a photoelectric reflection plate; the surface of the photoelectric reflection plate is opposite to the photoelectrics and is respectively installed above the input end of the synchronous gear belt group.

[0019] Furthermore, the optical device group also includes a strip light fixing component; the strip light fixing component includes a strip light and an L-shaped strip light adjusting member; both ends of the strip light are respectively mounted on the L-shaped strip light adjusting member; the strip light is used to illuminate the bottom edge of the carton.

[0020] Furthermore, a longitudinal strip hole is provided in the center of the L-shaped adjustment piece of the light strip, and longitudinal slot holes with multiple inclined slot holes are symmetrically arranged on the left and right sides of the longitudinal strip hole, and the multiple inclined slot holes are arranged in parallel and spaced apart up and down; the end of the light strip is respectively installed on the longitudinal strip hole and the inclined slot hole by two screws.

[0021] Furthermore, the camera fixing assembly also includes an L-shaped height member, a front-rear adjustment base, and a camera angle adjustment member;

[0022] The front-to-back adjustment base is slidably mounted on the L-shaped height member, and can slide longitudinally along the L-shaped height member; the camera angle adjustment member is slidably mounted on the front-to-back adjustment base, and can slide laterally along the front-to-back adjustment base; an arc groove and a mounting hole are provided on the upper portion of the camera angle adjustment member, and the camera angle adjustment member is connected to the camera via the arc groove and the mounting hole screws; the camera moves along the arc groove via the screws to adjust the up and down pitch angles.

[0023] Beneficial effects of the utility model:

[0024] The utility model can solve the problem of intelligent visual inspection of the four edges of the bottom surface of the carton on the last production line before the full box of products leaves the factory, so as to ensure that the four edges of the bottom surface of the carton leave the factory without any defects.

[0025] The utility model uses segmented smooth strips to support cartons while ensuring that the four edges of the bottom surface of the carton are completely exposed, meeting the arrangement of the optical device group for online visual detection of the four edges of the bottom surface of the carton. The utility model uses four cameras to achieve online detection of the four edges of the bottom surface of the carton, and the height and front and rear positions of the cameras can be adjusted by sliding, and the cameras can be rotated in an arc through an arc groove to adjust the up and down pitch angles.

[0026] The utility model can adjust the distance between two synchronous gear belt groups through the clamping adjustment unit, thereby ensuring the clamping tightness of the carton.

[0027] The utility model can supplement the shooting area of ​​the camera with light strips, thereby enhancing the clarity of the camera shooting. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional schematic diagram of the visual inspection device for the four edges of the bottom surface of a carton according to the utility model;

[0029] Figure 2 It is a three-dimensional schematic diagram of the visual inspection device for the four edges of the bottom surface of a carton without the outer shell of the utility model;

[0030] Figure 3 It is a schematic diagram of the position of the clamping and conveying device group in the frame of the utility model;

[0031] Figure 4 It is a schematic diagram of the position of the fluent strip group in the frame of the utility model;

[0032] Figure 5 It is a schematic diagram of the position of the optical device group in the frame of the utility model;

[0033] Figure 6 This is a schematic diagram of the position of the photoelectric group in the frame of the utility model;

[0034] Figure 7 This is a schematic diagram of the structure of the clamping part in the utility model;

[0035] Figure 8 This is a schematic diagram of the structure of the clamping part fixing unit in the utility model;

[0036] Fig. 9 This is a schematic diagram of the structure of the clamping adjustment unit in the utility model;

[0037] Fig.10 This is a schematic diagram of assembling the clamping part fixing unit and the clamping adjustment unit in the utility model;

[0038] Fig.11 This is a schematic diagram of the connection between the clamping part fixing unit and the clamping adjustment unit in the utility model;

[0039] Fig.12This is a schematic diagram of the fixed connection between the clamping part fixing unit and the clamping adjustment unit in the utility model;

[0040] Fig.13 It is a schematic diagram of assembling the synchronous gear belt set and the clamping part fixing unit in the utility model;

[0041] Fig.14 This is a schematic diagram of the connection between the synchronous gear belt set and the clamping part fixing unit in the utility model;

[0042] Fig.15 It is a schematic diagram of fixing the synchronous gear belt set on the clamping part fixing unit in the utility model;

[0043] Fig.16 This is a schematic diagram of the clamping and conveying device group in the utility model being placed on the bottom surface of the rectangular steel plate in the frame;

[0044] Fig.17 It is a schematic diagram of assembling the clamping and conveying device group and the rectangular steel plate in the frame in the utility model;

[0045] Fig.18 It is a schematic diagram of adjusting the clamping and conveying device group in the utility model;

[0046] Fig.19 This is a schematic diagram of the carton being conveyed under the clamping of a synchronous gear belt set in the utility model;

[0047] Fig. 20 This is a schematic diagram of the structure of the fluent bar group in the utility model;

[0048] Fig.21 This is a schematic diagram of the assembly of the segmented fluent strip assembly in the utility model;

[0049] Fig. 22 This is a schematic diagram of the connection between the flow strip and the fixing frame in the utility model;

[0050] Fig.23 It is a schematic diagram of assembling the fluent strip group and the frame in the utility model;

[0051] Fig.24 This is a schematic diagram of the camera fixing assembly in the present utility model;

[0052] Fig.25 This is a schematic diagram of adjusting the camera height, front-to-back distance, and up-down pitch angle of the camera fixing assembly in the present invention;

[0053] Fig.26 This is a schematic diagram of the light bar fixing assembly of the utility model;

[0054] Fig. 27 It is a schematic diagram of adjusting the height and the pitch angle of the strip light through the L-shaped strip light adjusting member in the utility model;

[0055] Fig.28 This is a schematic diagram of an optical strip carrier in the utility model;

[0056] Fig.29 This is a schematic diagram of an optical convex carrier plate in the utility model; Fig.30 It is a schematic diagram of the position of the optical carrier in the frame of the utility model;

[0057] Fig.31 This is a schematic diagram of the installation of the visual detection components for the front and rear edges of the bottom of the carton in the utility model;

[0058] Fig.32 It is a schematic diagram of the optical scheme of the visual detection assembly for the front and rear edges of the bottom of the carton in the utility model;

[0059] Fig.33 It is a schematic diagram of the connection between the strip light fixing assembly and the optical convex carrier plate in the visual inspection assembly for the left edge and the right edge of the bottom surface of the carton in the utility model;

[0060] Fig.34 It is a schematic diagram of the structure of visual detection of the right edge and the left edge of the bottom surface of the carton in the utility model;

[0061] Fig.35 It is a schematic diagram of an optical scheme for visually detecting the right edge and the left edge of the bottom surface of a carton in the utility model;

[0062] Fig.36 It is a schematic diagram of the overall adjustment of the camera fixing assembly and the strip light fixing assembly in the visual detection assembly for the front edge and the rear edge of the bottom of the carton in the utility model;

[0063] Fig.37 It is a schematic diagram of the overall adjustment of the camera fixing assembly and the strip light fixing assembly in the visual inspection of the right edge and the left edge of the bottom surface of the carton in the utility model;

[0064] Fig.38 This is a schematic diagram of the photoelectric emission group in the utility model;

[0065] Fig.39 This is a schematic diagram of the photoelectric reflection group in the utility model;

[0066] Fig.40 This is a schematic diagram of the installation of the photovoltaic group in the utility model;

[0067] Fig.41 This is a schematic diagram of adjusting the photoelectric L-shaped adjusting member along the photoelectric group in the utility model;

[0068] Fig.42 It is a schematic diagram of carton conveying in the utility model.

[0069] Among them: 100-clamping and conveying device group, 101-servo motor, 102-upper fixed guard plate, 103-lower fixed guard plate, 104-encoder, 105-synchronous gear belt, 106-gear shaft, 107-synchronous gear, 108-gear shaft slider, 109-top screw, 110-top screw fixing block, 111-rectangular bottom plate, 112-triangular reinforcement plate, 113-rectangular front side plate, 114-clamping fixture, 115-locking block, 116-circle counter, 117-rotating handle, 118-front fixed plate, 119-slide rail, 120-slider, 121-left side plate, 122-slider bearing, 123-screw, 124-bearing fixing block, 125-block , 126-right side plate, 127-clamping base plate, 200-fluent bar group, 201-fluent bar, 202-fixed frame, 300-optical device group, 301-L-shaped height member, 302-height adjustment fixed block, 303-front and rear adjustment base, 304-camera angle adjustment member, 305-camera fixed block, 306-camera, 307-light bar, 308-light bar L-shaped adjustment member, 309-optical strip carrier, 310-optical convex carrier, 400-photoelectric group, 401-photoelectric L-shaped adjustment member, 402-photoelectric fixed back plate, 403-photoelectric, 404-photoelectric reflector, 405-fixed back plate member, 500-frame, 501-rectangular steel plate, 502-square tube. DETAILED DESCRIPTION

[0070] The following is a further detailed description of the specific implementation of the utility model in conjunction with the accompanying drawings and examples. The following examples are only used to illustrate the utility model, but are not intended to limit the scope of the utility model.

[0071] The terms such as upper, lower, left, right, inside, outside, front end, rear end, head, tail, etc. in this application document are based on the positions or positions shown in the drawings. If the drawings are different, the corresponding positions may also change accordingly, so they cannot be understood as limiting the scope of protection.

[0072] In the present utility model, the terms "install", "connected", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection or mutual communication, a direct connection, an indirect connection through an intermediate medium, the internal connection of two components, or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0073] This embodiment records a visual inspection device for the four edges of the bottom surface of a carton, which mainly adopts a segmented smooth strip combined with a clamping conveying device and a dedicated optical solution to achieve online inspection of the four edges of the bottom surface of the carton.

[0074] like Figure 1 and Figure 2 As shown, the detection equipment is mainly composed of a clamping and conveying device group 100, a flow strip group 200, an optical device group 300, a photoelectric group 400 and a frame 500.

[0075] like Figure 3 As shown, the clamping and conveying device group 100 is installed on a rectangular steel plate 501 in a frame 500, and is used to clamp and convey cartons. Figure 4 As shown, the flow strip group 200 is installed on the square tube 502 at the lower center of the inner side of the frame 500, and is used to carry cartons to reduce the clamping force of the clamping conveyor group 100 on the cartons to avoid damaging the appearance of the cartons. Figure 5 As shown, the optical device group 300 is installed in the frame 500 below the smooth strip group 200, and is used to detect the four edges of the bottom surface of the carton. Figure 6 As shown, the photoelectric group 400 is installed on the rectangular steel plate 501 above the flow bar group 200, and is used to detect whether the carton enters the visual inspection equipment.

[0076] The clamping and conveying device group 100 is mainly composed of a clamping part, a clamping part fixing unit, and a clamping adjustment unit. The clamping part is installed on the clamping adjustment unit through the clamping part fixing unit, and the clamping adjustment unit is hoisted under the rectangular steel plate 501.

[0077] like Figure 7 As shown, the clamping part is composed of a synchronous gear belt group on the left and right sides, and the synchronous gear belt group includes a servo motor 101, an upper fixed guard plate 102, a lower fixed guard plate 103, an encoder 104, a synchronous gear belt 105, a gear shaft 106, a synchronous gear 107, a gear shaft slider 108, a top screw 109 and a top screw fixing block 110.

[0078] The left and right ends of the synchronous gear belt 105 are respectively meshed with the synchronous gear 107, and the upper fixed guard plate 102 and the lower fixed guard plate 103 are respectively installed at the upper and lower ends of the synchronous gear belt 105. The servo motor 101 is installed at one end of the top surface of the upper fixed guard plate 102, and its output shaft is connected to the center of the synchronous gear 107 at this end, driving the synchronous gear 107 to rotate, thereby driving the synchronous gear belt 105 to rotate. The output shaft of the servo motor 101 passes through the synchronous gear 107 and is connected to the encoder 104 installed on the bottom surface of the lower fixed guard plate 103. The encoder 104 is used to detect the rotation speed of the servo motor 101 so as to calculate the moving distance of the carton. The upper and lower ends of the synchronous gear 107 at the other end are fixed to the gear shaft slider 108 through the gear shaft 106 respectively. The gear shaft slider 108 can slide along the strip holes on the upper fixed guard plate 102 and the lower fixed guard plate 103. The top screw fixing block 110 is fixed at one end of the strip hole. The top screw 109 passes through the top screw fixing block 110 to fix the gear shaft slider 108, so as to ensure the tension of the synchronous gear belt 105.

[0079] like Figure 8 As shown, the clamping portion fixing unit includes a rectangular bottom plate 111, a triangular reinforcement plate 112, a rectangular front side plate 113 and a clamping fixture 114. A plurality of triangular reinforcement plates 112 are arranged in parallel and fixed to the bottom end face of the rectangular bottom plate 111 with their long right angle sides, and the short right angle sides of the triangular reinforcement plates 112 are installed on one end face of the rectangular front side plate 113. The clamping fixtures 114 are respectively installed at the four corners of the other end face of the rectangular front side plate 113 by screws, and the two clamping fixtures 114 on the left and right sides of the rectangular front side plate 113 are arranged in parallel up and down to fix the clamping portion.

[0080] like Fig. 9 As shown, the clamping adjustment unit includes a locking block 115, a circle counter 116, a rotating handle 117, a front fixed plate 118, a slide rail 119, a slider 120, a left side plate 121, a slider bearing 122, a screw rod 123, a bearing fixing block 124, a stop block 125, a right side plate 126, and a clamping base plate 127.

[0081] The front fixing plate 118, the left side plate 121 and the right side plate 126 are respectively fixed to the front end and the left and right side ends of the horizontally placed clamping base plate 127, forming a semi-enclosed base of the clamping adjustment unit.

[0082] The slider bearing 122 is threadedly mounted on the screw rod 123. When the screw rod 123 rotates, the slider bearing 122 can move along the screw rod 123. One end of the screw rod 123 passes through the center of the front fixing plate 118, the locking block 115 and the circle counter 116 in sequence and is connected to the rotating handle 117, and is fixed to the front fixing plate 118 through the locking block 115. The other end of the screw rod 123 is plugged into the bearing fixing block 124, and the bearing fixing block 124 is fixed to the rear side of the center of the bottom surface of the clamping base plate 127. The circle counter 116 is used to record the number of rotations of the screw rod 123, so as to calculate the moving distance of the slider bearing 122, and then calculate the moving distance of the synchronous gear belt group. Two stoppers 125 on the front and rear sides of the slider bearing 122 are symmetrically installed on the bottom surface of the clamping base plate 127 to limit the sliding range of the slider bearing 122.

[0083] Two slide rails 119 are symmetrically installed on the bottom surface of the clamping base plate 127 on the left and right sides of the screw rod 123, that is, the slide rails 119 are arranged parallel to the screw rod 123, and two sliders 120 are slidably installed on each slide rail 119, and the sliders 120 can slide along the slide rails 119.

[0084] like Figures 10 to 12 As shown, the rectangular bottom plate 111 of the clamping unit is connected to the slider 120 and the slider bearing 122 by bolts, and the clamping adjustment unit is fixed to the clamping unit. Figures 13 to 15 As shown, the synchronous gear belt groups on both sides of the clamping part are clamped between the upper and lower rows of clamping fixing members 114 of the clamping part fixing unit, and fixed by screws. Fig.16 and Fig.17 As shown, two rectangular steel plates 501 are symmetrically installed in the frame 500, and the clamping base plates 127 in the two sets of clamping and conveying device groups 100 are respectively suspended on the bottom surfaces of the rectangular steel plates 501 by screws to fix the clamping and conveying device groups 100 on the frame 500.

[0085] When the carton enters the clamping and conveying device group 100, Fig.18 and Fig.19 As shown, by shaking the rotating handle 117 to the right, the synchronous gear belt group is driven to move forward (i.e., the center of the frame 500) through the screw rod 123. At the same time, by shaking the rotating handle 117 to the left, the synchronous gear belt group is driven to move backward through the screw rod 123. Therefore, the clamping tightness of the carton is adjusted by synchronously adjusting the front and rear distance of the synchronous gear belt group. The servo motor 101 drives the synchronous gear belt 105 to rotate through the synchronous gear 107, so that the carton is transmitted under the clamping of the synchronous gear belt group without damaging the surface of the carton.

[0086] The fluent bar group 200 of this embodiment is a segmented fluent bar group, such as Figure 20 to Figure 23 As shown, the flow bar set 200 includes multiple groups of flow bars 201 and a fixing frame 202.

[0087] The fixing frame 202 includes a lower crossbeam and a support frame. A plurality of support frames are fixed on the lower crossbeam at intervals. The top of the support frame has two parallel grooved tubes. Long slots are provided on the top surface of the grooved tubes. Two smooth bars 201 are fixed on the grooved tubes of the support frame respectively by screws, nuts and long slots. The smooth bars 201 of this embodiment are composed of a plurality of rollers arranged in parallel. The length of the smooth bars 201 is less than the length of the carton. The width of the support frame is less than the width of the carton. This ensures that when the smooth bars 201 support the carton, the front, back, left and right edges of the bottom surface of the carton are exposed.

[0088] The lower crossbeam of the fixing frame 202 is fixed to the front and rear two square tubes 502 at the lower middle part of the frame 500 by screws, so as to fix the smooth bar set 200 in the frame 500. The carton is placed on the smooth bar set 200, and the smooth bars 201 arranged at intervals can prevent the smooth bars 201 from obstructing the detection of the edges of the bottom surface of the carton.

[0089] The optical device assembly 300 is composed of a camera fixing assembly, a light bar fixing assembly, and an optical carrier board.

[0090] like Fig.24 and Fig.25 As shown, the camera fixing assembly includes an L-shaped height member 301, a height adjustment fixing block 302, a front-to-back adjustment base 303, a camera angle adjustment member 304, a camera fixing block 305, and a camera 306. The front-to-back adjustment base 303 is mounted on the L-shaped height member 301 through the height adjustment fixing block 302, the bottom end of the camera angle adjustment member 304 is mounted on the slide slot of the front-to-back adjustment base 303 through bolts, and the camera 306 is mounted on the upper part of the camera angle adjustment member 304 through the camera fixing block 305.

[0091] In this embodiment, the height adjustment fixing block 302 is fixed to the strip-shaped through hole of the L-shaped height member 301 by bolts. By loosening and tightening the bolts, the height of the camera 306 can be adjusted along the strip-shaped through hole. By loosening and tightening the screws at the bottom of the camera angle adjustment member 304, the front and rear position of the camera 306 can be adjusted along the slide groove. The upper part of the camera angle adjustment member 304 is provided with an arc groove and a mounting hole for bolt connection with the camera fixing block 305. By loosening and tightening these two bolts, the camera 306 can adjust the up and down pitch angle along the arc groove. For example, in this embodiment, the up and down pitch adjustment of the camera 306 within a 160° angle range can be achieved.

[0092] In addition, in this embodiment, scale lines can be set on the strip through hole side of the L-shaped height member 301, the slide groove side of the front and rear adjustment base 303, and the arc groove side of the camera angle adjustment member 304, respectively, to facilitate checking the height, front and rear position and shooting angle of the camera 306 lens.

[0093] like Fig.26As shown, the light bar fixing assembly includes a light bar 307 and an L-shaped light bar adjustment member 308. Both ends of the light bar 307 are respectively mounted on the L-shaped light bar adjustment member 308. Preferably, a longitudinal bar hole is provided in the center of the L-shaped light bar adjustment member 308, and longitudinal slot holes having a plurality of inclined slot holes are symmetrically arranged on the left and right sides of the longitudinal bar hole, and the plurality of inclined slot holes are arranged parallel and spaced apart up and down. The ends of the light bar 307 are respectively mounted on the longitudinal bar hole and the inclined slot hole by two screws. By loosening or tightening the screws at both ends of the light bar 307, the light bar 307 can be adjusted in height along the longitudinal bar hole of the L-shaped light bar adjustment member 308, and the inclined slot holes of the longitudinal slot holes in this embodiment are downwardly inclined slot holes, such as Fig. 27 As shown, the tilt angle can be 45° to 57.5°, and the strip light 307 can adjust the irradiation area within the angle range of 45° to 57.5°.

[0094] The optical carrier includes two optical strip carriers 309 (see Fig.28 ) and two optical convex carrier plates 310 (see Fig.29 )composition.

[0095] like Fig.30 As shown, two optical strip carriers 309 symmetrically span the front and rear ends of two beams fixed at the middle position of the lower part of the frame 500, and are located at the inner lower part of the square tube 502. Two optical convex carriers 310 are symmetrically installed on two longitudinal beams on both sides of the lower center of the frame 500, and the optical convex carriers 310 are slightly higher than the optical strip carriers 309.

[0096] The visual inspection components for the front and rear edges of the bottom of the carton each include a set of camera fixing components and a set of strip light fixing components. Fig.31 and Fig.32 As shown, the camera fixing assembly is installed on the optical strip carrier 309 through the L-shaped height member 301, and the camera 306 lenses in the front and rear camera fixing assemblies are respectively facing the front edge and the rear edge of the bottom surface of the carton. The two ends of the strip light fixing assembly are respectively installed on the optical convex carrier 310 on the left and right sides through the strip light L-shaped adjustment member 308. The length direction of the strip light 307 is perpendicular to the conveying direction of the carton, and the installation position is close to the optical strip carrier 309. The strip light 307 irradiates the front edge and the rear edge of the bottom surface of the carton to increase the brightness at the front edge and the rear edge.

[0097] The visual inspection components for the left and right edges of the bottom surface of the carton are similar in structure to the visual inspection components for the front and rear edges of the bottom surface of the carton, and each of them includes a set of camera fixing components and a set of strip light fixing components. The difference is that Figure 33 to Figure 35As shown, the camera fixing assembly and the strip light fixing assembly are respectively fixed to the optical convex carrier plate 310, and the strip light fixing assembly is close to the center of the frame 500, and the length direction of the strip light 307 is parallel to the conveying direction of the carton. The camera 306 in the camera fixing assembly is hoisted below the front and rear adjustment base 303 through the camera angle adjustment member 304.

[0098] In this embodiment, the bottom ends of the L-shaped height member 301 and the L-shaped light bar adjustment member 308 are respectively provided with double sliding grooves, such as Fig.36 and Fig.37 As shown, the screws for installing the L-shaped height member 301 and the L-shaped light bar adjustment member 308 can be moved along the double slide grooves to adjust the installation position, thereby adjusting the installation position of the camera fixing assembly and the light bar fixing assembly, so that the final position and pitch angle of the camera 306 and the light bar 307 can meet the requirements of the optical solution.

[0099] The photoelectric group 400 is mainly composed of a photoelectric emission group and a photoelectric reflection group. The photoelectric emission group and the photoelectric reflection group are respectively installed on two rectangular steel plates 501 of the frame 500 above the input end of the synchronous gear belt group, and the positions are opposite.

[0100] like Figures 38 to 41 As shown, the photoelectric emission group includes a photoelectric L-shaped adjustment member 401, a photoelectric fixed back plate 402, and a photoelectric 403. The photoelectric fixed back plate 402 is mounted on the vertical plate of the photoelectric L-shaped adjustment member 401 by two screws, and the photoelectric 403 is fixed on the photoelectric fixed back plate 402. The photoelectric reflection group includes a photoelectric L-shaped adjustment member 401, a photoelectric reflection plate 404, and a fixed back plate member 405. The photoelectric reflection plate 404 is mounted on the vertical plate of the photoelectric L-shaped adjustment member 401 by the fixed back plate member 405, and the surface of the photoelectric reflection plate 404 is opposite to the photoelectric 403, and the two are used in conjunction with each other.

[0101] Preferably, the photoelectric L-shaped adjusting member 401 is composed of a vertical plate and a horizontal plate, the vertical plate is provided with two mounting holes, one of which is a fan-shaped hole, and the horizontal plate has double-strip through holes. By moving the bolts along the fan-shaped holes, the pitch angles of the photoelectric 403 and the photoelectric reflector 404 can be adjusted. The horizontal plate of the photoelectric L-shaped adjusting member 401 is installed on the rectangular steel plate 501 by bolts, and can be moved along the double-strip through holes to adjust the installation position of the photoelectric L-shaped adjusting member 401.

[0102] like Fig.42 As shown, when the carton is conveyed into the visual inspection device and triggers the photoelectric 403, the photoelectric signal is transmitted to the PLC, and the PLC transmits a signal for taking a picture and strobing the light source to the camera 306 and the light bar 307.

[0103] Although the principle of the present invention is described in detail above in conjunction with the preferred embodiments of the present invention, those skilled in the art should understand that the above embodiments are merely explanations of the exemplary implementation of the present invention, and are not intended to limit the scope of the present invention. The details in the embodiments do not constitute limitations on the scope of the present invention. Without departing from the spirit and scope of the present invention, any obvious changes such as equivalent transformations and simple replacements based on the technical solution of the present invention fall within the scope of protection of the present invention.

Claims

1. A visual inspection device for the four edges of the bottom surface of a carton, characterized in that: The visual inspection equipment comprises a clamping and conveying device group (100), a flow strip group (200), and an optical device group (300); The clamping and conveying device group (100) comprises a clamping portion, a clamping portion fixing unit, and a clamping adjustment unit; the clamping portion is composed of two synchronous gear belt groups that are parallel and spaced symmetrically, and the synchronous gear belt groups are installed on the clamping adjustment unit through the clamping portion fixing unit; the two clamping adjustment units synchronously drive the two synchronous gear belt groups to move in opposite directions, and the two synchronous gear belt groups clamp the carton; the two synchronous gear belt groups convey the carton by rotating in opposite directions; The smooth bar group (200) is placed below the interval between the two synchronous gear belt groups and is used to carry the carton. The smooth bar group (200) is a segmented smooth bar group. The optical device group (300) includes four camera fixing components, and the camera fixing components include a camera (306); the four camera fixing components are respectively placed at the front and rear ends and the middle of the left and right sides of the flow strip group (200), and are used to respectively detect the front edge, rear edge, left edge and right edge of the bottom surface of the carton.

2. The visual inspection device for the four edges of the bottom surface of a carton according to claim 1 is characterized in that: The flow strip group (200) includes multiple groups of flow strips (201) and a fixed frame (202); the fixed frame (202) includes multiple support frames arranged at intervals; the top of the support frame has two parallel groove tubes; the flow strip (201) is installed on the groove tubes; and the length of the flow strip (201) is smaller than the length of the carton, and the width of the support frame is smaller than the width of the carton.

3. The visual inspection device for the four edges of the bottom surface of a carton according to claim 1 is characterized in that: The synchronous gear belt assembly comprises a servo motor (101), an upper fixed guard plate (102), a lower fixed guard plate (103), an encoder (104), a synchronous gear belt (105), a gear shaft (106), and a synchronous gear (107); The left and right ends of the synchronous gear belt (105) are respectively meshed and connected with the synchronous gear (107); the upper fixed guard plate (102) and the lower fixed guard plate (103) are respectively installed at the upper and lower ends of the synchronous gear belt (105); the servo motor (101) is installed at one end of the top surface of the upper fixed guard plate (102), and the output shaft of the servo motor (101) is connected to the center of the synchronous gear (107) at this end to drive the synchronous gear (107) to rotate; the encoder (104) is installed on the bottom surface of the lower fixed guard plate (103) to detect the rotation speed of the servo motor (101); the upper and lower ends of the synchronous gear (107) at the other end are respectively connected to the upper fixed guard plate (102) and the lower fixed guard plate (103) through the gear shaft (106).

4. The visual inspection device for the four edges of the bottom surface of a carton according to claim 3 is characterized in that: The synchronous gear belt assembly also includes a gear shaft slider (108), a top screw (109) and a top screw fixing block (110); The upper and lower ends of the synchronous gear (107) are respectively fixed to the gear shaft slider (108) through the gear shaft (106); the gear shaft slider (108) can slide along the strip holes on the upper fixed guard plate (102) and the lower fixed guard plate (103); the top screw fixing block (110) is fixed to one end of the strip hole, and the top screw (109) passes through the top screw fixing block (110) to fix the gear shaft slider (108).

5. The visual inspection device for the four edges of the bottom surface of a carton according to claim 1 is characterized in that: A plurality of clamping fixing members (114) are installed on one side of the clamping portion fixing unit, and the plurality of clamping fixing members (114) are divided into two parallel and spaced upper and lower rows, and the upper and lower rows of clamping fixing members (114) clamp and fix the synchronous gear belt set.

6. The visual inspection device for the four edges of the bottom surface of a carton according to claim 1, characterized in that: The clamping and adjusting unit comprises a locking block (115), a circle counter (116), a rotating handle (117), a front fixing plate (118), a slide rail (119), a slider (120), a left side plate (121), a slider bearing (122), a screw rod (123), a bearing fixing block (124), a right side plate (126), and a clamping base plate (127); The front fixing plate (118), the left side plate (121) and the right side plate (126) are respectively fixed to the front end and left and right side ends of the horizontally placed clamping base plate (127); The slider bearing (122) is threadedly mounted on the screw rod (123); one end of the screw rod (123) passes through the center of the front fixing plate (118), the locking block (115) and the circle counter (116) in sequence, and is connected to the rotating handle (117), and is fixed to the front fixing plate (118) through the locking block (115); the other end of the screw rod (123) is inserted into the bearing fixing block (124), and the bearing fixing block (124) is fixed to the bottom surface of the clamping base plate (127); the two slide rails (119) on the left and right sides of the screw rod (123) are symmetrically mounted on the bottom surface of the clamping base plate (127); the slider (120) is slidably mounted on the slide rail (119); the slider (120) and the slider bearing (122) are respectively connected to the clamping portion fixing unit.

7. The visual inspection device for the four edges of the bottom surface of a carton according to claim 1, characterized in that: The visual inspection device also includes a photoelectric group (400), the photoelectric group (400) includes a photoelectric emission group and a photoelectric reflection group; the photoelectric emission group includes a photoelectric (403); the photoelectric reflection group includes a photoelectric reflection plate (404); the surface of the photoelectric reflection plate (404) is opposite to the photoelectric (403), and is respectively installed above the input end of the synchronous gear belt group.

8. The visual inspection device for the four edges of the bottom surface of a carton according to claim 1, characterized in that: The optical device group (300) further comprises a strip light fixing assembly; the strip light fixing assembly comprises a strip light (307) and a strip light L-shaped adjusting member (308); two ends of the strip light (307) are respectively mounted on the strip light L-shaped adjusting member (308); the strip light (307) is used to illuminate the edge of the bottom surface of the carton.

9. The visual inspection device for the four edges of the bottom surface of a carton according to claim 8, characterized in that: The center of the L-shaped light bar adjustment member (308) is provided with a longitudinal strip hole, and longitudinal slot holes with multiple inclined slot holes are symmetrically arranged on the left and right sides of the longitudinal strip hole, and the multiple inclined slot holes are arranged in parallel and spaced apart from top to bottom; the end of the light bar (307) is respectively mounted on the longitudinal strip hole and the inclined slot hole by two screws.

10. The visual inspection device for the four edges of the bottom surface of a carton according to claim 1, characterized in that: The camera fixing assembly further comprises an L-shaped height member (301), a front-rear adjustment base (303), and a camera angle adjustment member (304); The front-rear adjustment base (303) is slidably mounted on the L-shaped height member (301) and can slide longitudinally along the L-shaped height member (301); the camera angle adjustment member (304) is slidably mounted on the front-rear adjustment base (303) and can slide transversely along the front-rear adjustment base (303); an arc groove and a mounting hole are provided on the upper portion of the camera angle adjustment member (304); the camera angle adjustment member (304) is connected to the camera (306) via the arc groove and the mounting hole screws; the camera (306) moves along the arc groove via the screws to adjust the up and down pitch angles.

Images