Sheet rejection detection equipment

Abstract

The present invention discloses a sheet rejection detection device, comprising: a frame, the frame is provided with a silo device, a loading device, a conveying device, a detection device and a unloading device, the conveying device is arranged between the loading device and the unloading device, the detection device is arranged on one side of the conveying device, the loading device takes the product from the silo device and places the product on the conveying device, the conveying device conveys the product to the unloading device, during the conveying process of the conveying device conveying the product, the detection device detects whether the product is qualified, and the unloading device respectively delivers qualified and unqualified products to different designated positions according to the detection results of the detection device. The sheet rejection detection device of the present invention realizes the automation of sheet product detection, improves detection efficiency, and has high detection accuracy, effectively avoids misoperation caused by manual detection, and improves the quality of sheet products.

Description

Technical Field

[0001] The present invention relates to the technical field of feeding devices, and in particular to a sheet material rejection detection device. Background Art

[0002] At present, the inspection of sheet products is mainly done manually, and the appearance, shape and size of the products are checked manually to see if they are qualified. However, manual inspection is time-consuming and labor-intensive, inefficient, and not suitable for large-scale batch production operations. There is also the problem of misoperation, and unqualified products cannot be completely detected, affecting product quality. Summary of the invention

[0003] In view of the above-mentioned shortcomings, the technical problem to be solved by the present invention is to provide a sheet rejection detection device to improve the detection accuracy and detection efficiency and improve the quality of sheet products.

[0004] In order to solve the above technical problems, the technical solution of the present invention is:

[0005] A sheet rejection detection device comprises: a frame, the frame is provided with a silo device, a loading device, a conveying device, a detection device and a unloading device, the conveying device is arranged between the loading device and the unloading device, the detection device is arranged on one side of the conveying device, the loading device takes the product from the silo device and places the product on the conveying device, the conveying device conveys the product to the unloading device, during the process of the conveying device conveying the product, the detection device detects whether the product is qualified, and the unloading device sends the qualified and unqualified products to different designated positions according to the detection results of the detection device.

[0006] Preferably, the silo device includes a silo bracket, a lifting and fixing plate, a product placement plate and four vertically arranged limit members, the lifting and fixing plate is fixed to the silo bracket, the product placement plate is parallel to the top of the lifting and fixing plate, the four limit members pass through the product placement plate, the four limit members are opposite to each other and two opposite limit members form a group, and the four limit members are arranged circumferentially at an interval of 90°.

[0007] Preferably, the two groups of limit members are respectively connected to the lifting fixed plate through a spacing adjustment mechanism, and the spacing adjustment mechanism includes an adjusting guide rail, an adjusting slider, an adjusting screw and an adjusting round nut sleeved on the adjusting screw, the adjusting guide rail is fixed to the lifting fixed plate, the adjusting slider slides on the adjusting guide rail, there are two adjusting sliders and two adjusting round nuts, and one adjusting slider is fixedly connected to one adjusting round nut, the two limit members in the same group are respectively fixedly connected to the two adjusting sliders, the adjusting screw is parallel to the adjusting guide rail, the two adjusting screws in the two sets of the screw slider mechanisms are vertical and arranged up and down, and the adjusting screw is fixedly connected with a handwheel.

[0008] Preferably, the product placement plate is connected to a lifting mechanism, and the lifting mechanism includes a lifting motor, a lifting screw, a lifting round nut, a guide shaft, a linear bearing and a bottom lifting plate. The lifting motor is fixed to the silo bracket, and the lower end of the guide shaft is fixedly connected to the bottom lifting plate, and the bottom lifting plate is located below the lifting fixed plate. The upper end of the guide shaft is fixedly connected to the product placement plate, and the guide shaft is slidably connected to the linear bearing, and the linear bearing is fixed to the lifting fixed plate. The lifting round nut is sleeved on the lifting screw, and the lifting round nut is fixed to the bottom lifting plate.

[0009] Preferably, the silo device is provided with two sets, the silo brackets of the two sets of the silo devices are fixedly connected, the lifting fixed plate is fixed with a switching slider, the frame is fixed with a switching guide rail, the switching slider slides on the switching guide rail, and a telescopic cylinder is connected between the silo bracket and the frame.

[0010] Preferably, the two limiting members in the same group are provided with a through-beam type photoelectric sensor, which includes a transmitter and a receiver, and the transmitter and the receiver are respectively provided on the two limiting members, and the through-beam type photoelectric sensor is electrically connected to a controller, and the controller is electrically connected to the lifting motor.

[0011] Preferably, the feeding device comprises a feeding guide rail provided between the silo device and the conveying device, the feeding guide rail is slidably connected with a feeding slider, the feeding slider is fixed with a feeding telescopic cylinder, and the telescopic end of the feeding telescopic cylinder is fixed with a feeding nozzle;

[0012] The material unloading device comprises a material unloading guide rail, the material unloading guide rail is slidably connected with a material unloading slider, the material unloading slider is fixed with a material unloading telescopic cylinder, and the telescopic end of the material unloading telescopic cylinder is fixed with a material unloading suction nozzle.

[0013] Preferably, the conveying device comprises a rotary disk driven by a divider, the rotary disk has a plurality of material trays evenly distributed around the circumference, and the material trays are provided with through holes.

[0014] Preferably, the detection device comprises an upper detection device and a lower detection device;

[0015] The upper detection device includes an upper CCD camera located above the rotating disk, an upper coaxial light source, an upper strip light source, and an upper light source located below the rotating disk;

[0016] The lower detection device comprises a lower light source located above the rotating disk and a lower CCD camera, a lower coaxial light source and a lower strip light source located below the rotating disk.

[0017] Preferably, the qualified products are placed on a baffle conveyor belt, which is located below the unloading guide rail and has a running direction perpendicular to the unloading guide rail;

[0018] The unqualified products are placed in a partition box, the partition box is fixed to a partition box slider, the partition box slider slides on a partition box guide rail, the partition box and the partition box guide rail are located below the unloading guide rail, and the partition box guide rail is perpendicular to the unloading guide rail.

[0019] After adopting the above technical solution, the beneficial effects of the present invention are:

[0020] The sheet rejection detection device of the present invention realizes the automation of sheet product detection, improves detection efficiency, has high detection accuracy, effectively avoids erroneous operations caused by manual detection, and improves the quality of sheet products. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the sheet rejection detection device of the present invention;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the sheet rejection detection device of the present invention from another direction;

[0023] Figure 3 yes Figure 1 Schematic diagram of the three-dimensional structure of the switching silo device;

[0024] Figure 4 yes Figure 1 Schematic diagram of the three-dimensional structure of the middle silo device;

[0025] Figure 5 yes Figure 4 Schematic diagram of the three-dimensional structure of the middle silo device after removing a limiter;

[0026] In the figure: 1-frame; 2-silo device; 21-silo bracket; 22-motor fixing plate; 23-lifting fixing plate; 24-through-beam photoelectric sensor; 25-lifting mechanism; 251-lifting motor; 252-lifting round nut; 253-lifting screw; 254-linear bearing; 255-guide shaft; 256-bottom lifting plate; 257-shock absorber; 26-product placement plate; 27-limiting piece; 28-spacing adjustment mechanism; 281-adjusting guide rail; 282-adjusting round nut; 283-adjusting slider; 284-adjusting screw; 285-handwheel; 29-switching slider; 3-feeding device; 31-feeding guide Rail; 32-feeding slider; 33-feeding cylinder; 34-feeding nozzle; 4-upper detection device; 41-upper visual bracket; 42-upper coaxial light source bracket; 43-upper strip light source bracket; 44-upper light source base bracket; 5-lower detection device; 51-lower coaxial light source bracket; 52-lower strip light source bracket; 53-lower light source base bracket; 6-unloading device; 61-unloading guide rail; 62-unloading slider; 63-unloading cylinder; 64-unloading nozzle; 7-rotating disc; 71-material tray; 72-through hole; 8-baffle conveyor belt; 9-partition box; 91-partition box guide rail; 10-switching cylinder; 11-switching guide rail. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] like Figure 1 and Figure 2 As shown together, a sheet rejection detection device includes: a frame 1, the frame 1 is provided with a silo device 2, a loading device 3, a rotary disc 7, an upper detection device 4, a lower detection device 5, a unloading device 6, a baffle conveyor belt 8 and a partition box 9.

[0029] The rotary disc 7 is driven by a divider, and a plurality of material trays 71 are evenly distributed around the rotary disc 7. The material trays 71 are provided with through holes 72. The loading device 3, the upper detection device 4, the lower detection device 5 and the unloading device 6 are arranged around the rotary disc 7, and respectively correspond to a certain station of the rotary disc 7, that is, after each rotation of the rotary disc 7, a material tray 71 will rotate to the station of the loading device 3, the upper detection device 4, the lower detection device 5 and the unloading device 6.

[0030] like Figure 4 and Figure 5As shown together, the silo device 2 includes a silo bracket 21, a lifting and fixing plate 23, a product placement plate 26 and four circumferentially evenly distributed and vertically arranged limit members 27, the limit members 27 are limit rods or limit plates, the lifting and fixing plate 23 is fixed to the silo bracket 21, the product placement plate 26 is parallel to the top of the lifting and fixing plate 23, the four limit members 27 pass through the product placement plate 26, the product placement plate 26 is provided with four holes for allowing the limit members 27 to move, the four limit members 27 are opposite to each other and two opposite limit members 27 form a group, and the four limit members are arranged at 90° intervals along the circumferential direction.

[0031] The two groups of limit members 27 are respectively connected to the lifting fixed plate 23 through the spacing adjustment mechanism 28. The spacing adjustment mechanism 28 includes an adjusting guide rail 281, an adjusting slider 283, an adjusting screw 284 and an adjusting round nut 282 sleeved on the adjusting screw 284. The adjusting guide rail 281 is fixed to the lifting fixed plate 23. There are two adjusting sliders 283 and two adjusting round nuts 282 respectively. The two adjusting sliders 283 are respectively fixedly connected to the two adjusting round nuts 282. The adjusting guide rail 281 is slidably connected to the two adjusting sliders 283. The two limit members 27 in the same group are respectively fixed to the two adjusting sliders 283 of the same spacing adjustment mechanism 28. The adjusting screw 284 is arranged parallel to the adjusting guide rail 281. The adjusting screw 284 is installed on the lifting fixed plate 23 through a bearing seat. The two adjusting screws 284 in the two sets of screw slider mechanisms 28 are vertically and arranged up and down. The adjusting screw 284 is fixedly connected with a handwheel 285.

[0032] The product placement plate 26 is connected to the lifting mechanism 25, which includes a lifting motor 251, a lifting screw 253, a lifting round nut 252, a guide shaft 255 and a linear bearing 254. The upper end of the guide shaft 255 is fixedly connected to the product placement plate 26, and the lower end of the guide shaft 255 is fixedly connected to the bottom lifting plate 256. The bottom lifting plate 256 is located below the product placement plate 26. The guide shaft 255 is slidably connected to the linear bearing 254. The linear bearing 254 Fixed to the lifting fixed plate 23, the upper and lower ends of the guide shaft 255 are also fixed with shock-absorbing blocks 257 respectively, the lifting round nut 252 is fixed to the bottom lifting plate 256, the lifting round nut 252 is sleeved on the lifting screw 253, the lifting screw 253 is rotatably installed between the motor fixing plate 22 and the lifting fixed plate 23, the lifting screw 253 is driven by the lifting motor 251, the lifting motor 251 is fixed to the motor fixing plate 22, and the motor fixing plate 22 is fixed to the silo bracket 1.

[0033] The two limit members 27 in the same group are provided with a through-beam photoelectric sensor 24, which includes a transmitter and a receiver. The transmitter and the receiver are respectively provided on the two limit members 27, the through-beam photoelectric sensor 24 is electrically connected to the controller, and the lifting motor 251 is electrically connected to the controller.

[0034] Among them, from bottom to top, the motor fixing plate 22, the bottom lifting plate 256, the lifting fixing plate 23 and the product placing plate 26 are arranged in sequence.

[0035] like Figure 1 , Figure 2 and Figure 3 As shown, two sets of silo devices 2 are provided, the silo brackets 21 of the two sets of silo devices 2 are fixedly connected, the lifting fixed plate 23 is fixed with a switching slider 29, the frame 1 is fixed with a switching guide rail 11, the switching slider 29 slides on the switching guide rail 11, and a switching cylinder 10 is connected between the silo bracket 21 and the frame 1.

[0036] like Figure 1 and Figure 2 As shown together, the feeding device 3 includes a feeding guide rail 31 arranged between the silo device 2 and the turntable 7, the feeding guide rail 31 is slidably connected with a feeding slider 32, the feeding slider 32 is driven to move along the feeding guide rail 31 by a gear rack mechanism or a synchronous belt transmission mechanism, the feeding slider 32 is fixed with a feeding cylinder 33, and the telescopic end of the feeding cylinder 33 is fixed with a feeding nozzle 34.

[0037] The upper detection device 4 includes an upper CCD camera, an upper coaxial light source, an upper strip light source and an upper light source located above the turntable 7. The CCD camera is fixed to an upper visual bracket 41, an upper coaxial light source is fixed to an upper coaxial light source bracket 42, an upper strip light source is fixed to an upper strip light source bracket 43, and the upper light source is fixed to an upper light source base bracket 44.

[0038] The lower detection device 5 includes a lower light source located above the turntable 7 and a lower CCD camera, a lower coaxial light source, and a lower strip light source located below the turntable 7. The lower light source is fixed to the lower light source base bracket 53, the lower CCD camera is fixed to the lower visual bracket, the lower coaxial light source is fixed to the lower coaxial light source bracket 51, and the lower strip light source is fixed to the lower strip light source bracket 52.

[0039] The unloading device 6 includes an unloading guide rail 61, which is slidably connected to a unloading slider 62, to which a unloading cylinder 63 is fixed. The unloading slider 62 is driven to move along the unloading guide rail 61 by a gear rack mechanism or a synchronous belt transmission mechanism, and a unloading suction nozzle 64 is fixed to the telescopic end of the unloading cylinder 63.

[0040] Qualified products are placed on the baffle conveyor belt 8 , which is located below the unloading guide rail 61 and has a running direction perpendicular to the unloading guide rail 61 , and is installed on the frame 1 .

[0041] Unqualified products are placed in the partition box 9, which is fixed to the partition box slider, which slides on the partition box guide rail 91, which is fixed to the frame 1. The partition box slider is driven by a gear rack mechanism or a synchronous belt transmission mechanism to move along the partition box guide rail 91. The partition box 9 is located below the unloading guide rail 61, and the partition box guide rail 91 is perpendicular to the unloading guide rail 61.

[0042] The working principle and working process of the sheet rejection detection device of the present invention are as follows:

[0043] During operation, the sheet product is placed on a transparent support plate, and a plurality of transparent support plates carrying sheet products are stacked on the product placement plate 26 and are located between four limit members 27. The lifting motor 251 drives the lifting screw 253 to rotate, and the lifting screw 253 drives the lifting round nut 252 to move up and down, so that the bottom lifting plate 256 moves up and down along with the lifting round nut 252, and the bottom lifting plate 256 drives the product placement plate 26 to move up and down through four guide shafts 255. When the uppermost sheet product moves to the detection position of the through-beam photoelectric sensor 24, the through-beam photoelectric sensor 24 sends a signal to the controller, and the controller sends a command to the lifting motor 251, and the lifting motor 251 stops working. If no sheet product moves to the detection position of the through-beam photoelectric sensor 24, the lifting motor 251 works;

[0044] The loading slide block 32 moves along the loading guide rail 31 to the top of the transparent support plate at the uppermost end, the loading cylinder 33 drives the loading nozzle 34 to descend to the surface of the transparent support plate, the loading nozzle 34 sucks the transparent support plate, and then the loading cylinder 33 retracts, the loading slide block 32 moves along the loading guide rail 31 to the top of a material tray 71, the loading cylinder 33 drives the loading nozzle 34 to descend to the material tray 71, and the loading nozzle 34 is operated to place the transparent support plate carrying the sheet product on the material tray 71 and the transparent support plate covers the through hole 72;

[0045] The divider driving wheel turntable 7 rotates, and the material tray 71 with the sheet product is rotated to the station of the upper detection device 4. The CCD camera of the upper detection device 4 detects whether the appearance, shape and size of the upper surface of the sheet product are qualified;

[0046] The divider driving wheel turntable 7 rotates, and then rotates the material tray 71 with the sheet product to the station of the lower detection device 5. The CCD camera of the lower detection device 5 detects whether the appearance, shape and size of the lower surface of the sheet product are qualified;

[0047] The divider driving wheel turntable 7 rotates, and then the material tray 71 with the sheet product is rotated to the work station of the unloading device 6, the unloading slider 62 moves along the unloading guide rail 61 to the top of the sheet product, the unloading cylinder 63 extends to drive the unloading suction nozzle 64 to move to the surface of the transparent support plate, the unloading suction nozzle 64 sucks the transparent support plate, the unloading cylinder 63 retracts, and the unloading slider 62 moves along the unloading guide rail 61. For all qualified sheet products, the unloading slider 62 moves to the top of the baffle conveyor belt 8, and the transparent support plate carrying the sheet product is placed on the baffle conveyor belt 8. The baffle conveyor belt 8 transports the qualified sheet products to the next process. For the transparent support plate with unqualified sheet products, the transparent support plate is placed in the partition box 9.

[0048] In this embodiment, there are four sheet products on a transparent support plate, and accordingly, the partition box 9 has four boxes. If one sheet product is unqualified, the transparent support plate carrying the sheet product is placed in the first box, if two sheet products are unqualified, the transparent support plate carrying the sheet product is placed in the second box, if three sheet products are unqualified, the transparent support plate carrying the sheet product is placed in the third box, and if four sheet products are unqualified, the transparent support plate carrying the sheet product is placed in the fourth box. By controlling the movement distance of the partition box slider along the partition box guide rail 91, the transparent support plate carrying the sheet product can be accurately placed in a box.

[0049] When all the sheet products in one set of silo devices 2 are taken away, the switching cylinder 10 is actuated, the switching slider 29 moves along the switching guide rail 11, and the other set of silo devices 2 moves to the unloading station of the loading device 3. The operator adds products to the empty silo device 2, realizing the silo switching operation without stopping the machine, thereby improving production efficiency.

[0050] By rotating the lead screw, the distance between the two limit members 27 can be adjusted to accommodate transparent support plates of different sizes.

[0051] When the CCD camera is working, the coaxial light source, strip light source and surface light source are all turned on to create an environment with appropriate brightness and remove the shadow of the sheet product, so as to clearly display the defects of the sheet product and improve the accuracy and efficiency of detection.

[0052] The sheet rejection detection device of the present invention realizes the automation of sheet product detection, improves detection efficiency, has high detection accuracy, effectively avoids erroneous operations caused by manual detection, and improves the quality of sheet products.

[0053] The above is an example of the best implementation of the present invention, and the parts not described in detail are common knowledge of ordinary technicians in the field. The protection scope of the present invention shall be based on the content of the claims, and any equivalent transformation based on the technical enlightenment of the present invention is also within the protection scope of the present invention.

Claims

1. Sheet rejection detection equipment, characterized in that: include: A frame, wherein the frame is provided with a silo device, a loading device, a conveying device, a detection device and a discharge device, wherein the conveying device is arranged between the loading device and the discharge device, and the detection device is arranged on one side of the conveying device. The loading device takes the product from the silo device and places the product on the conveying device, and the conveying device conveys the product to the discharge device. During the process of the conveying device conveying the product, the detection device detects whether the product is qualified, and the discharge device respectively delivers the qualified and unqualified products to different designated positions according to the detection results of the detection device; The silo device comprises a silo support, a lifting fixed plate, a product placement plate and four vertically arranged limit members, the lifting fixed plate is fixed to the silo support, the product placement plate is parallel to the upper side of the lifting fixed plate, the four limit members pass through the product placement plate, the four limit members are opposite to each other in pairs and two opposite limit members form a group, and the four limit members are arranged at intervals of 90° along the circumferential direction; The two groups of limit members are respectively connected to the lifting fixed plate through a spacing adjustment mechanism, the spacing adjustment mechanism comprises an adjusting guide rail, an adjusting slider, an adjusting screw and an adjusting round nut sleeved on the adjusting screw, the adjusting guide rail is fixed to the lifting fixed plate, the adjusting slider slides on the adjusting guide rail, there are two adjusting sliders and two adjusting round nuts, and one adjusting slider is fixedly connected to one adjusting round nut, the two limit members in the same group are respectively fixedly connected to the two adjusting sliders, the adjusting screw is parallel to the adjusting guide rail, the two adjusting screws in the two sets of the spacing adjustment mechanisms are vertical and arranged up and down, and the adjusting screw is fixedly connected with a hand wheel; The product placement plate is connected to the lifting mechanism, and the lifting mechanism includes a lifting motor, a lifting screw, a lifting round nut, a guide shaft, a linear bearing and a bottom lifting plate. The lifting motor is fixed to the silo bracket, and the lower end of the guide shaft is fixedly connected to the bottom lifting plate. The bottom lifting plate is located below the lifting fixed plate. The upper end of the guide shaft is fixedly connected to the product placement plate. The guide shaft is slidably connected to the linear bearing, and the linear bearing is fixed to the lifting fixed plate. The lifting round nut is sleeved on the lifting screw, and the lifting round nut is fixed to the bottom lifting plate. The silo device is provided with two sets, the silo brackets of the two sets of silo devices are fixedly connected, the lifting fixed plate is fixed with a switching slider, the frame is fixed with a switching guide rail, the switching slider slides on the switching guide rail, and a telescopic cylinder is connected between the silo bracket and the frame; The two limiting members in the same group are provided with a through-beam photoelectric sensor, which includes a transmitter and a receiver. The transmitter and the receiver are respectively provided on the two limiting members. The through-beam photoelectric sensor is electrically connected to a controller, and the controller is electrically connected to the lifting motor.

2. The sheet rejection detection device according to claim 1, characterized in that: The feeding device comprises a feeding guide rail arranged between the silo device and the conveying device, the feeding guide rail is slidably connected with a feeding slider, the feeding slider is fixed with a feeding telescopic cylinder, and the telescopic end of the feeding telescopic cylinder is fixed with a feeding suction nozzle; The material unloading device comprises a material unloading guide rail, the material unloading guide rail is slidably connected with a material unloading slider, the material unloading slider is fixed with a material unloading telescopic cylinder, and the telescopic end of the material unloading telescopic cylinder is fixed with a material unloading suction nozzle.

3. The sheet rejection detection device according to claim 1, characterized in that: The conveying device comprises a rotary disk driven by a divider, a plurality of material trays are evenly distributed in the circumference of the rotary disk, and the material trays are provided with through holes.

4. The sheet rejection detection device according to claim 3, characterized in that: The detection device comprises an upper detection device and a lower detection device; The upper detection device includes an upper CCD camera located above the rotating disk, an upper coaxial light source, an upper strip light source, and an upper light source located below the rotating disk; The lower detection device comprises a lower light source located above the rotating disk and a lower CCD camera, a lower coaxial light source and a lower strip light source located below the rotating disk.

5. The sheet rejection detection device according to claim 2, characterized in that: The qualified products are placed on a baffle conveyor belt, which is located below the unloading guide rail and has a running direction perpendicular to the unloading guide rail; The unqualified products are placed in a partition box, the partition box is fixed to a partition box slider, the partition box slider slides on a partition box guide rail, the partition box and the partition box guide rail are located below the unloading guide rail, and the partition box guide rail is perpendicular to the unloading guide rail.

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