Industrial visual sorting machine based on one-to-three infrared camera module

Abstract

The industrial visual sorting machine based on the one-to-three infrared camera module comprises a feeding machine and an optical sorting mechanism, the optical sorting mechanism is arranged outside the feeding machine and comprises a sorting chamber and an optical module, and the optical module is arranged in the sorting chamber; the optical module comprises a left infrared light source set and a right infrared light source set, each infrared light source set comprises an upper infrared light source set and a lower infrared light source set, the two infrared light sources of each infrared light source set intersect on a blanking track to form a viewing point, and two dichroscopes are arranged on a diffuse reflection track of infrared rays based on the viewing point. The invention relates to the technical field of sorting machines, and solves the problem that the sorting requirement is limited due to the fact that an existing sorting machine is high in manufacturing cost, low in sorting efficiency or few in recognition type. The sorting machine comprises a dichroscope, three camera circuit boards are arranged on the reflection path and the refraction path of the dichroscope respectively, and the input ends of the three camera circuit boards are all electrically connected with photoelectric sensors.

Description

Technical Field

[0001] The present invention relates to the technical field of sorting machines, and specifically relates to an industrial vision sorting machine based on a one-to-three infrared camera module. Background Art

[0002] The existing plastic color sorting is divided into two methods. One is to use an infrared hyperspectral camera or an infrared spectrometer to obtain the spectral signals of the entire infrared band of the plastic, and it can obtain the infrared spectral information of dozens or even hundreds of bands of the plastic. There are many types of plastic materials that can be identified, and the identification accuracy is also high. The other is to use two infrared cameras to obtain the spectral signals of two infrared bands, and identify the types of plastic materials according to the ratio or difference of these two signals. The advantages of this method are that the machine price is relatively cheap, the amount of data processed is small, and the sorting efficiency is high.

[0003] Both of the above two methods have certain defects in actual use. For the former, due to the high prices of the infrared hyperspectral camera and the infrared spectrometer, the cost of such color sorters is relatively high, and the large amount of data processed leads to a reduction in sorting efficiency. The latter can only identify the spectral information of two infrared bands, and the types of plastic materials that can be identified are limited, making it difficult to face complex plastic material sorting scenarios. Therefore, it is necessary to solve the deficiencies of the existing technology. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the present invention provides an industrial vision sorting machine based on a one-to-three infrared camera module, which solves the problems of high cost and low sorting efficiency of the existing sorting machine, or limited sorting requirements due to few identified types.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: An industrial vision sorting machine based on a one-to-three infrared camera module, including a feeding machine,

[0006] an optical sorting mechanism, the optical sorting mechanism is arranged outside the feeding machine, the optical sorting mechanism includes a sorting chamber and an optical module, and the optical module is arranged inside the sorting chamber;

[0007] The optical module includes two groups of infrared light sources on the left and right. Each group of infrared light sources has two up and down. The two infrared light sources in each group cross on the blanking trajectory to form a viewing point, and two dichroic mirrors are arranged on the diffuse reflection trajectory of the infrared rays based on the viewing point. Three camera circuit boards are respectively arranged on the reflection and refraction paths of the dichroic mirror. The input ends of the three camera circuit boards are all electrically connected to photoelectric sensors. Infrared lenses are arranged outside the three camera circuit boards, and filter plates are arranged on the three infrared lenses;

[0008] a protection component, the protection component is arranged outside the optical module and shields the outside of the optical module through movement.

[0009] Preferably, the interior of the sorting chamber is connected to the output end of the feeding machine. The interior of the sorting chamber is respectively penetrated and communicated with a qualified product discharge hopper and a waste product discharge hopper. An air jet valve is arranged inside the sorting chamber.

[0010] Preferably, the protection component includes a baffle. The baffle is arranged outside the optical module. One end of a telescopic rod is fixedly connected to the outer surface of the baffle, and the other end of the telescopic rod is fixedly connected to the interior of the sorting chamber. A steel belt is fixedly connected to the outer surface of the baffle. A fixed pulley is movably connected to the outer surface of the steel belt, and the outer surface of the fixed pulley is fixedly connected to the interior of the sorting chamber.

[0011] Preferably, fixing strips are fixedly connected to the outer surface of the baffle. The fixing strips are respectively arranged outside the dichroic mirror and the filter. A cloth bag is sleeved on the outer surface of the fixing strip, and the outer surface of the cloth bag is movably connected to the outer surfaces of the dichroic mirror and the filter respectively.

[0012] Preferably, a steel ring is fixedly connected to the mouth of the cloth bag in an embedded manner. A rotating strip is rotatably connected to the outer surface of the fixing strip, and the outer surface of the rotating strip abuts against the outer surface of the steel ring.

[0013] Preferably, a traction unit is arranged at one end of the steel belt. The traction unit includes a sliding cylinder. The outer surface of the sliding cylinder is fixedly connected to the interior of the sorting chamber. A sliding rod is slidably connected through the body of the sliding cylinder. The other end of the sliding rod is fixedly connected to one end of the steel belt. A sealing plate is fixedly connected through the outer surface of the sliding rod, and the outer surface of the sealing plate is movably connected to the interior of the sliding cylinder.

[0014] Preferably, two air pipes penetrate and communicate with the interior of the sliding cylinder. An electromagnetic valve is arranged outside one of the air pipes, and an air pump is communicated with one end of the other air pipe.

[0015] Preferably, a compression spring is sleeved on the outer surface of the sliding rod. Two ends of the compression spring are respectively fixedly connected to the interior of the sliding cylinder and the outer surface of the sealing plate.

[0016] Preferably, a blocking structure is arranged at one end of the sliding rod. The blocking structure includes two combined plates. Push plates are fixedly connected to the outer surfaces of the two combined plates. Diagonal strips are arranged outside the push plates. A through guide groove is formed in the body of the diagonal strip, and a guide strip is slidably connected to the interior of the guide groove. One end of the guide strip is fixedly connected to the outer surface of the push plate.

[0017] Preferably, a connecting plate is movably connected to the outer surface of the inclined strip. One end of a sliding rod is fixedly connected to the outer surface of the connecting plate. A wedge groove is formed in the body of the connecting plate. A pin rod is slidably connected inside the wedge groove. A through chute is formed in the body of the inclined strip. The outer surface of the pin rod is slidably connected inside the chute. One end of the pin rod is fixedly connected to the outer surface of a guide strip.

[0018] Beneficial effects

[0019] The present invention provides an industrial vision sorting machine based on a one-into-three infrared camera module. Compared with the prior art, it has the following beneficial effects:

[0020] (1) By setting an optical module, on the diffuse reflection trajectory of light, two dichroic mirrors are used to divide the light beam into three. Thus, by obtaining the mutual ratio or difference of the three-band spectral signals, the identification range of plastic materials can be effectively expanded, and the sorting efficiency can be improved and the sorting cost can be reduced.

[0021] (2) By setting a protection component, the baffle is driven to move by a telescopic rod, so as to buffer and protect the outside of the optical module, avoiding the problem that the dichroic mirror and the filter are damaged by external objects. And through the function of the cloth bag, the dichroic mirror and the filter are also cleaned. By keeping the surface clean, the sorting accuracy and the service life are improved.

[0022] (3) By setting a traction unit, the outside air is filled into the sliding cylinder by an air pump. The sealing plate is pushed to move by air pressure, so that the sliding rod pulls the steel belt to move, so as to drive the baffle to move to protect the optical module. At the same time, the air and the spring force further act as buffer dampers to improve the protection performance of the baffle.

[0023] (4) By setting a blocking structure, the connecting plate moves synchronously with the sliding rod, changing the relative position of the pin rod inside the wedge groove. Thus, through the displacement difference of the position change parameters of the pin rod, the guide strip and the push plate push the closing plate to move, and through the closing of the two closing plates, the optical diffuse reflection trajectory is blocked to prevent the damage of the dichroic mirror surface caused by the splashing of objects in this direction. Description of the drawings

[0024] Figure 1 It is the front view of the internal structure of the present invention;

[0025] Figure 2 It is the schematic diagram of the optical module of the present invention;

[0026] Figure 3 It is the three-dimensional external structure diagram of the baffle of the present invention;

[0027] Figure 4 It is the three-dimensional external structure diagram of the fixing strip of the present invention;

[0028] Figure 5 is a three-dimensional internal structure diagram of the sliding cylinder of the present invention;

[0029] Figure 6 is a three-dimensional external structure diagram of the connecting plate of the present invention.

[0030] In the figure: 1, loading machine; 2, sorting chamber; 3, optical module; 31, infrared light source; 32, viewing point; 33, dichroic mirror; 34, camera circuit board; 35, photoelectric sensor; 36, infrared lens; 37, filter; 4, protection component; 41, baffle; 42, telescopic rod; 43, steel belt; 44, traction unit; 441, sliding cylinder; 442, sliding rod; 443, blocking structure; 4431, combined plate; 4432, push plate; 4433, inclined bar; 4434, guide groove; 4435, guide bar; 4436, connecting plate; 4437, wedge groove; 4438, pin rod; 4439, chute; 444, sealing plate; 445, air pipe; 446, solenoid valve; 447, air pump; 448, compression spring; 45, fixed pulley; 46, fixed bar; 47, cloth bag; 48, steel ring; 49, rotating bar; 5, good product discharge hopper; 6, waste product discharge hopper; 7, air jet valve. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1-6 , the present invention provides a technical solution: an industrial vision sorting machine based on a one-to-three infrared camera module:

[0033] Embodiment 1: Refer to the attached drawings of the specification Figure 1 and the attached Figure 2 ;

[0034] It includes a loading machine 1, which is composed of an existing vibrating feeder, a trough, and a frame. An optical sorting mechanism is arranged outside the loading machine 1. The optical sorting mechanism includes a sorting chamber 2 and an optical module 3. The sorting chamber 2 is arranged outside the loading machine 1, and the inside of the sorting chamber 2 is in through communication with the output end of the loading machine 1. The optical module 3 is arranged inside the sorting chamber 2, and a protective component 4 is arranged outside the optical module 3. A discharge hopper is in through communication with the inside of the sorting chamber 2. There are two discharge hoppers, namely a good product discharge hopper 5 and a waste product discharge hopper 6. A jet valve 7 is arranged outside the feed end of the discharge hopper inside the sorting chamber 2. The optical module 3 includes two groups of infrared light sources 31 on the left and right. Each group of infrared light sources 31 has two, and the two infrared light sources 31 in each group are inclined so that the infrared beams of the two cross between the jet valve 7 and the discharge end of the loading machine 1 to form a viewing point 32. The viewing point 32 is the irradiation point where the plastic is color-selected. The viewing point 32 is on the blanking trajectory, and two dichroic mirrors 33 are arranged along the diffuse reflection trajectory of the infrared beam. The dichroic mirrors 33 are inclined on the beam diffuse reflection trajectory to facilitate beam splitting by reflection. The cut-off wavelengths of the two dichroic mirrors 33 are 1100nm and 1500nm respectively. Three camera circuit boards 34 are arranged on the reflection and refraction paths of the two dichroic mirrors 33 respectively. The input ends of the three camera circuit boards 34 are electrically connected to photoelectric sensors 35. Infrared lenses 36 are arranged outside the three camera circuit boards 34, and filter films 37 are arranged on the three infrared lenses 36. The central wavelength of the filter film 37 is set and replaced according to actual needs.

[0035] In this embodiment, the plastic to be sorted falls to the viewing point 32 through the feeding of the feeding machine 1. At this time, the infrared rays emitted by two infrared light sources 31 in each group converge at the viewing point 32 and irradiate on the plastic. A beam of light diffusely reflected by the plastic is incident on the front surface of the first dichroic mirror 33 and is split into two beams of light by the first dichroic mirror 33. One beam of reflected light with a wavelength less than the cut-off wavelength of 1100 nm irradiates on the filter 37 corresponding to the first dichroic mirror 33, and then is imaged on the photoelectric sensor 35 of the camera circuit board 34 through the corresponding infrared lens 36; while one beam of transmitted light with a wavelength greater than the cut-off wavelength of 1100 nm irradiates on the front surface of the second dichroic mirror 33 through refraction, and one beam of reflected light with a wavelength less than the cut-off wavelength of 1500 nm is irradiated on a filter 37 outside the second dichroic mirror 33, and then is imaged on the photoelectric sensor 35 of the camera circuit board 34 through the corresponding infrared lens 36; and one beam of transmitted light with a wavelength greater than the cut-off wavelength of 1500 nm irradiates on another filter 37 outside the second dichroic mirror 33 through refraction, and then is imaged on the photoelectric sensor 35 of the camera circuit board 34 through the corresponding infrared lens 36. That is, the two groups of dichroic mirrors 33 split a beam of light diffusely reflected by the plastic into three beams of light, which are respectively imaged by three infrared cameras, and their wavelength ranges are less than 1100 nm, 1100 nm to 1500 nm, and greater than 1500 nm. However, this wavelength range is still relatively wide. We also need to use three filters 37 to extract the infrared "fingerprint" of the plastic. The filter 37 is a device for extracting narrowband spectral signals. We can set different wavelengths of the filter 37 according to the characteristics of the plastic. Assuming that the central wavelengths of the filters 37 are 1000 nm, 1300 nm, and 1600 nm respectively, then through this one-to-three infrared camera module, we can obtain the three-segment infrared "fingerprint" spectral information of the plastic at 1000 nm, 1300 nm, and 1600 nm at one time. By calculating the pairwise ratios or pairwise differences of these three spectral signals, three groups of ratios or three groups of differences can be obtained. Compared with the one group of ratios or one group of differences in the two-band sorting method, more information can be obtained, and the types of plastic materials that can be identified and sorted are also more abundant, and basically most types of waste plastic materials can be covered.

[0036] Embodiment 2: On the basis of Embodiment 1, refer to the attached drawings of the specification Figure 3 , attached Figure 4 ;

[0037] The protection component 4 includes a baffle 41. The cross-section of the baffle 41 covers the outside of the entire optical module 3 to achieve a comprehensive shielding effect, avoiding the problem that the optical module 3 is damaged due to contact with objects from the outside. A camera is arranged outside the baffle 41 to identify and monitor foreign splashes. The baffle 41 is arranged outside the optical module 3. A telescopic rod 42 is fixedly connected to the outer surface of the baffle 41. The telescopic rod 42 is made of a spring rod. It can buffer external impacts through elastic expansion and contraction, and is also convenient for the baffle 41 to move to shield the optical module 3. Moreover, the expansion and contraction direction of the telescopic rod 42 is perpendicular to the diffuse reflection direction. One end of the telescopic rod 42 is fixedly connected to the inside of the sorting chamber 2. A steel belt 43 is fixedly connected to the outer surface of the baffle 41. The flexibility and hardness of the steel belt 43 can facilitate the improvement of the service life, and can pull the baffle 41 close to the optical module 3 for protection through the change of the positions at both ends. A fixed pulley 45 is movably connected to the outer surface of the steel belt 43. The fixed pulley 45 plays a role of reversing. The outer surface of the fixed pulley 45 is fixedly connected to the inside of the sorting chamber 2. A fixed strip 46 is fixedly connected to the outer surface of the baffle 41. The fixed strips 46 are respectively arranged outside the dichroic mirror 33 and the filter 37. A cloth bag 47 is sleeved on the outer surface of the fixed strip 46. The cloth bag 47 can be made of a cleaning material. On the one hand, it can avoid the wear caused by direct contact with the fixed strip 46, and on the other hand, it can play a cleaning role to improve the accuracy of the optical module 3. The outer surface of the cloth bag 47 is movably connected to the outer surfaces of the dichroic mirror 33 and the filter 37 respectively. A steel ring 48 is fixedly connected to the opening of the bag mouth of the cloth bag 47. The steel ring 48 plays a role of wrapping and improving the connection stability, and there is an opening on one side. A rotating strip 49 is rotatably connected to the outer surface of the fixed strip 46. The rotating strip 49 rotates inside the steel ring 48 to facilitate the disassembly and replacement of the cloth bag 47. Moreover, the length of the rotating strip 49 is greater than the inner length of the opening of the steel ring 48, and the width is less than the inner length of the opening. The outer surface of the rotating strip 49 abuts against the outer surface of the steel ring 48.

[0038] In this embodiment, first, the cloth bag 47 is sleeved on one end of the fixed strip 46, and when sleeving, the rotating strip 49 is arranged vertically to enter the inside of the steel ring 48 through the opening. After the cloth bag 47 is sleeved, the rotating strip 49 is rotated inside the steel ring 48. Through the change of the positions at its two ends, the cloth bag 47 is fixed by abutting against the steel ring 48. At the same time, when the camera on the baffle 41 monitors that there are splashes in the direction of the optical diffuse reflection trajectory, one end of the steel belt 43 moves to drive the baffle 41 to move close to the optical module 3 to protect it. At the same time, the output end of the telescopic rod 42 is compressed so that the baffle 41 can be reset by rebounding, and the fixed strip 46 drives the cloth bag 47 to move into contact with the surfaces of the dichroic mirror 33 and the filter 37 to play a role of contact protection and cleaning.

[0039] Embodiment 3: On the basis of Embodiment 2, refer to the attached drawings of the specification Figure 3 and attached Figure 5 ;

[0040] One end of the steel belt 43 is provided with a traction unit 44. The traction unit 44 includes a sliding cylinder 441. The sliding cylinder 441 is fixed inside the sorting chamber 2 through its attached base. The outer surface of the sliding cylinder 441 is fixedly connected to the inside of the sorting chamber 2. A sliding rod 442 is connected through the body of the sliding cylinder 441 in a penetrating and sliding manner. The other end of the sliding rod 442 is fixedly connected to one end of the steel belt 43. A sealing plate 444 is fixedly connected through the outer surface of the sliding rod 442. The sealing plate 444 is made of an existing rubber piston. The outer surface of the sealing plate 444 is movably connected to the inside of the sliding cylinder 441. Two air pipes 445 penetrate and communicate with the inside of the sliding cylinder 441. The two air pipes 445 are respectively used for air intake and exhaust. The air pipe 445 for air intake is made of a one-way valve. An electromagnetic valve 446 is arranged outside one of the air pipes 445. One end of the other air pipe 445 is communicated with an air pump 447. Both the electromagnetic valve 446 and the air pump 447 are electrically connected to an external control circuit to control the air intake and exhaust inside the sliding cylinder 441. A compression spring 448 is sleeved outside the sliding rod 442. The compression spring 448 further improves the performance of the telescopic rod 42 through its own resilience and slows down the fatigue of the telescopic rod 42. Both ends of the compression spring 448 are fixedly connected to the inside of the sliding cylinder 441 and the outer surface of the sealing plate 444 respectively.

[0041] In this embodiment, when splashes are detected, the air pump 447 works to pump outside air into the inside of the sliding cylinder 441 through one air pipe 445, and the sliding rod 442 is pushed to move by the sealing plate 444 to stretch the steel belt 43, so that the baffle 41 moves accordingly to protect the optical module 3. At the same time, the sealing plate 444 compresses the compression spring 448, so as to facilitate the reset of the sliding rod 442 through the resilience of the compression spring 448, thereby reducing the performance loss of the telescopic rod 42.

[0042] Embodiment 4: On the basis of Embodiment 3, refer to the attached drawings of the specification Figure 3 and the attached Figure 6 ;

[0043] One end of the sliding rod 442 is provided with a blocking structure 443. The blocking structure 443 includes two plywood boards 4431. Push plates 4432 are fixedly connected to the outer surfaces of the two plywood boards 4431. The push plates 4432 slide along their own central axes to push the two plywood boards 4431 to close. When the two groups of push plates 4432 and plywood boards 4431 are closed, they are trapezoidal in shape. Diagonal strips 4433 are arranged outside the push plates 4432. Through grooves 4434 are formed in the bodies of the diagonal strips 4433. Guide strips 4435 are slidably connected inside the through grooves 4434. The guide strips 4435 can improve the movement stability of the plywood boards 4431. One end of the guide strip 4435 is fixedly connected to the outer surface of the push plate 4432. Connecting plates 4436 are movably connected to the outer surfaces of the diagonal strips 4433. The outer surfaces of the connecting plates 4436 are fixedly connected to one end of the sliding rod 442. Wedge grooves 4437 are formed in the bodies of the connecting plates 4436. The wedge grooves 4437 are inclined to increase the lateral driving force through the displacement difference on both sides inside. Pin rods 4438 are slidably connected inside the wedge grooves 4437. Through grooves 4439 are formed in the bodies of the diagonal strips 4433. The width of the through grooves 4439 is smaller than that of the through grooves 4434 to limit the guide strips 4435. The outer surfaces of the pin rods 4438 are slidably connected to the inside of the through grooves 4439. One end of the pin rod 4438 is fixedly connected to the outer surface of the guide strip 4435.

[0044] In this embodiment, when the sliding rod 442 slides, it pushes the connecting plate 4436 to move synchronously. The movement of the connecting plate 4436 changes the relative position of the pin rod 4438 inside it, and through the displacement difference and the oblique contact, it pushes the pin rod 4438 to move synchronously inside the through groove 4439, and pushes the guide strip 4435 to move synchronously therewith, so that the push plate 4432 pushes the plywood board 4431 to move and close. By closing the two plywood boards 4431, the light diffuse reflection trajectory is blocked, thereby blocking the flying objects from this direction, and buffering through the air damping effect to reduce the kinetic energy of the flying objects, so as to achieve double protection for the optical module 3.

[0045] At the same time, the content not described in detail in this specification belongs to the well-known prior art in the art.

[0046] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An industrial vision sorting machine based on a one-into-three infrared camera module, including a feeding machine (1), characterized in that: An optical sorting mechanism, the optical sorting mechanism is arranged outside the feeding machine (1), the optical sorting mechanism includes a sorting chamber (2) and an optical module (3), and the optical module (3) is arranged inside the sorting chamber (2); The optical module (3) includes two groups of infrared light sources (31) on the left and right, and there are two infrared light sources (31) in each group arranged vertically. The two infrared light sources (31) in each group cross on the blanking trajectory to form a viewing point (32), and two dichroic mirrors (33) are arranged on the diffuse reflection trajectory of the infrared ray based on the viewing point. Three camera circuit boards (34) are respectively arranged on the reflection and refraction paths of the dichroic mirror (33). The input ends of the three camera circuit boards (34) are electrically connected to photoelectric sensors (35). Infrared lenses (36) are arranged outside the three camera circuit boards (34), and filter plates (37) are arranged on the three infrared lenses (36); A protection component (4), the protection component (4) is arranged outside the optical module (3), and shields the outside of the optical module (3) through movement.

2. The industrial vision sorting machine based on a one-to-three infrared camera module according to claim 1, wherein: The inside of the sorting chamber (2) is communicated with the output end of the feeding machine (1). A good product discharge hopper (5) and a waste product discharge hopper (6) penetrate and communicate with the inside of the sorting chamber (2) respectively. An air jet valve (7) is arranged inside the sorting chamber (2).

3. The industrial vision sorting machine based on a one-into-three infrared camera module according to claim 1, characterized in that: The protection component (4) includes a baffle (41), the baffle (41) is arranged outside the optical module (3), a telescopic rod (42) is fixedly connected to the outer surface of the baffle (41), and one end of the telescopic rod (42) is fixedly connected to the inside of the sorting chamber (2). A steel belt (43) is fixedly connected to the outer surface of the baffle (41), a fixed pulley (45) is movably connected to the outer surface of the steel belt (43), and the outer surface of the fixed pulley (45) is fixedly connected to the inside of the sorting chamber (2).

4. An industrial vision sorting machine based on a one-to-three infrared camera module according to claim 3, wherein: A fixing strip (46) is fixedly connected to the outer surface of the baffle (41), the fixing strip (46) is respectively arranged outside the dichroic mirror (33) and the filter plate (37), and a cloth bag (47) is sleeved on the outer surface of the fixing strip (46). The outer surface of the cloth bag (47) is movably connected to the outer surfaces of the dichroic mirror (33) and the filter plate (37) respectively.

5. The industrial vision sorting machine based on a one-in-three infrared camera module according to claim 4, characterized in that: A steel ring (48) is fixedly connected to the bag mouth of the cloth bag (47), a rotating strip (49) is rotatably connected to the outer surface of the fixing strip (46), and the outer surface of the rotating strip (49) abuts against the outer surface of the steel ring (48).

6. The industrial vision sorting machine based on a one-to-three infrared camera module according to claim 3, wherein: One end of the steel strip (43) is provided with a traction unit (44). The traction unit (44) includes a sliding cylinder (441). The outer surface of the sliding cylinder (441) is fixedly connected to the inside of the sorting chamber (2). A sliding rod (442) is slidably connected through the body of the sliding cylinder (441). The other end of the sliding rod (442) is fixedly connected to one end of the steel strip (43). A sealing plate (444) is fixedly connected through the outer surface of the sliding rod (442). The outer surface of the sealing plate (444) is movably connected to the inside of the sliding cylinder (441).

7. The industrial vision sorting machine based on a one-into-three infrared camera module according to claim 6, wherein: Two air pipes (445) are connected through the inside of the sliding cylinder (441). An electromagnetic valve (446) is provided outside one of the air pipes (445). One end of the other air pipe (445) is connected to an air pump (447).

8. An industrial vision sorting machine based on a one-to-three infrared camera module according to claim 6, characterized in that: A compression spring (448) is sleeved outside the sliding rod (442). The two ends of the compression spring (448) are respectively fixedly connected to the inside of the sliding cylinder (441) and the outer surface of the sealing plate (444).

9. An industrial vision sorting machine based on a one-to-three infrared camera module according to claim 6, characterized in that: One end of the sliding rod (442) is provided with a blocking structure (443). The blocking structure (443) includes two combining plates (4431). Push plates (4432) are fixedly connected to the outer surfaces of the two combining plates (4431). Diagonal strips (4433) are provided outside the push plates (4432). Through grooves (4434) are formed in the body of the diagonal strips (4433). Guide strips (4435) are slidably connected to the inside of the through grooves (4434). One end of the guide strip (4435) is fixedly connected to the outer surface of the push plate (4432).

10. An industrial vision sorting machine based on a one-in-three infrared camera module according to claim 9, wherein: A connecting plate (4436) is movably connected to the outer surface of the diagonal strip (4433). The outer surface of the connecting plate (4436) is fixedly connected to one end of the sliding rod (442). A wedge groove (4437) is formed in the body of the connecting plate (4436). A pin rod (4438) is slidably connected to the inside of the wedge groove (4437). A through groove (4439) is formed in the body of the diagonal strip (4433). The outer surface of the pin rod (4438) is slidably connected to the inside of the through groove (4439). One end of the pin rod (4438) is fixedly connected to the outer surface of the guide strip (4435).

Images