Intelligent track transfer device for conveying belt

Abstract

The utility model discloses an intelligent track transfer device for conveying belts, which comprises a rack, a main conveying belt, and a first sub conveying belt, a second sub conveying belt, a third sub conveying belt, an arc-shaped steering channel, a first track transfer mechanism, a second track transfer mechanism, a third track transfer mechanism and a controller which are arranged on the rack, the front end of the first branch conveying belt is located on one side of the front end of the arc-shaped steering channel, the rear end of the main conveying belt corresponds to the front end of the arc-shaped steering channel, and the front end of the second branch conveying belt and the front end of the third branch conveying belt both correspond to the rear end of the arc-shaped steering channel. The rear end of the main conveying belt corresponds to the front end of the first branch conveying belt through a first rail transfer mechanism, the rear end of the arc-shaped steering channel is connected with the front end of the second branch conveying belt through a second rail transfer mechanism, and the rear end of the arc-shaped steering channel is connected with the front end of the third branch conveying belt through a third rail transfer mechanism. And the first orbital transfer mechanism, the second orbital transfer mechanism and the third orbital transfer mechanism are electrically connected with corresponding signal output ends of the controller respectively.

Description

Technical Field

[0001] This utility model relates to the field of conveyor belt technology, and specifically to an intelligent track-changing device for conveyor belts. Background Technology

[0002] Packaging cans (such as tin cans) are widely used in the food, chemical, and hardware packaging industries. In industrialized mass production processes, the formed packaging cans need to be continuously transferred, sorted, and stored via conveyor belts. Currently, traditional packaging can conveyor lines generally adopt a fixed straight-line conveyor structure with a single and fixed conveying path, which cannot flexibly adapt to the diversion and conveying needs of multiple workstations and multiple storage areas.

[0003] Currently, for the material sorting and transfer operations of packaging cans, most manufacturers rely on manual operation of sorting and material distribution mechanisms to complete the can diversion, or deploy multiple independent conveyor belts spliced ​​together to match different conveying points. This method has problems such as low automation, large footprint, and inflexible switching, resulting in low efficiency and seriously restricting the turnover efficiency and intelligence of the entire packaging can production line. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an intelligent conveyor belt track changing device, which can automatically complete the identification of the conveying path of the packaging can, guide and divert the flow, and realize the intelligent track changing and transfer of the packaging can.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] An intelligent conveyor belt track-changing device includes a frame and a main conveyor belt, the main conveyor belt being mounted on the frame. The device is characterized by further including a first sub-conveyor belt, a second sub-conveyor belt, a third sub-conveyor belt, an arc-shaped turning channel, a first track-changing mechanism, a second track-changing mechanism, a third track-changing mechanism, and a controller, all mounted on the frame. The front end of the first sub-conveyor belt is located to one side of the front end of the arc-shaped turning channel, and the rear end of the main conveyor belt corresponds to the front end of the arc-shaped turning channel. The front ends of the second and third sub-conveyor belts also correspond to the rear ends of the arc-shaped turning channel. The rear end of the main conveyor belt is connected to the front end of the first sub-conveyor belt via the first track-changing mechanism. The rear end of the arc-shaped turning channel is connected to the front end of the second sub-conveyor belt via the second track-changing mechanism, and the rear end of the arc-shaped turning channel is connected to the front end of the third sub-conveyor belt via the third track-changing mechanism. The first, second, and third track-changing mechanisms are electrically connected to the corresponding signal output terminals of the controller.

[0007] The terms "front" and "back" are defined as follows: taking the conveying direction of the main conveyor belt, the first sub-conveyor belt, the second sub-conveyor belt, and the third sub-conveyor belt as a reference, the side where the packaging can arrives first is called "front," and the side where the packaging can arrives last is called "back."

[0008] The packaging cans are continuously and directionally conveyed via the main conveyor belt. The system has a pre-programmed control program based on the customer's production diversion requirements.

[0009] When the packaging cans need to be transported to the first sub-conveyor belt, the controller controls the first track-changing mechanism to deflect and guide them, directly diverting the packaging cans at the rear end of the main conveyor belt to the first sub-conveyor belt, and independently completing the unidirectional discharge and transfer.

[0010] When the packaging can does not need to enter the first sub-conveyor belt, the first track changing mechanism is reset, and the packaging can smoothly merge into the arc-shaped turning channel with the main conveyor belt for turning transition.

[0011] According to the preset sorting instructions, the controller controls the second and third track-changing mechanisms to start and stop for alignment: when the second track-changing mechanism is activated, the packaging cans in the arc-shaped turning channel are guided to the second sub-conveyor belt; when the third track-changing mechanism is activated, the packaging cans are guided to the third sub-conveyor belt.

[0012] In a preferred embodiment, the first track-changing mechanism includes two first strip-shaped guide plates, a U-shaped connecting frame, and a first track-changing drive cylinder. Main side baffles extending along the conveying direction of the main conveyor belt are respectively provided on both sides of the main conveyor belt. The front ends of the two first strip-shaped guide plates are hinged to the rear ends of the corresponding main side baffles. The rear ends of the two first strip-shaped guide plates are fixedly connected by the U-shaped connecting frame, which is positioned above the rear ends of the two first strip-shaped guide plates. The cylinder body of the first track-changing drive cylinder is mounted on the frame, and the end of the piston rod of the first track-changing drive cylinder is connected to the U-shaped connecting frame. First side baffles extending along the conveying direction of the first sub-conveyor belt are respectively provided on both sides of the first sub-conveyor belt. When the piston rod of the first track-changing drive cylinder is in the extended state, the rear ends of the two first strip-shaped guide plates correspond to the front ends of the arc-shaped turning channel. When the piston rod of the first track-changing drive cylinder is in the retracted state, the rear ends of the two first strip-shaped guide plates correspond to the front ends of the two first side baffles. The two first strip guide plates are synchronously hinged and linked, and the overall synchronous swing is achieved by relying on the U-shaped connecting frame. The two sides are symmetrically limited to prevent the packaging can from deviating or tipping due to force on one side.

[0013] In a further preferred embodiment, the second track-changing mechanism includes a second strip-shaped guide plate, a linear guide rail, a slider, a second track-changing drive cylinder, a turntable, and a rotation drive mechanism capable of driving the turntable to rotate. The rotation drive mechanism is mounted on the frame. The turntable is rotatably mounted on the frame and located at the intersection of the front ends of the main conveyor belt, the second sub-conveyor belt, and the third sub-conveyor belt. The turntable is located below the arc-shaped turning channel, and the upper surface of the turntable forms the conveying bottom surface of the arc-shaped turning channel. Second side baffles extending along the conveying direction of the second sub-conveyor belt are respectively provided on both sides of the second sub-conveyor belt. The linear guide rail is mounted on the frame and is parallel to the conveying direction of the second sub-conveyor belt. The slider is positioned on and can move along the linear guide rail. A second strip guide plate is mounted on the slider, positioned in front of and aligned with the second side baffle near the front end of the third sub-conveyor belt. The cylinder body of the second track-changing drive cylinder is mounted on the frame, and the end of the piston rod of the second track-changing drive cylinder is connected to the slider. When the piston rod of the second track-changing drive cylinder is extended, the second strip guide plate blocks the front end of the third sub-conveyor belt, and the rear end of the arc-shaped turning channel corresponds to the front end of the second sub-conveyor belt. When the piston rod of the second track-changing drive cylinder is retracted, the front end of the second strip guide plate is positioned outside the front end of the third sub-conveyor belt. The arc-shaped channel and the turntable below it rotate synchronously, ensuring that the bottom of the packaging can is fully supported during the arc-shaped reversal, preventing slippage and tipping.

[0014] Typically, the aforementioned rotary drive mechanism includes a drive motor, a drive pulley, a synchronous pulley, and a synchronous belt. The drive motor, drive pulley, and synchronous pulley are all mounted on the frame. The drive pulley and synchronous pulley together tension the synchronous belt. The drive pulley is connected to the output shaft of the drive motor. The turntable is coaxially arranged with the synchronous pulley. The drive motor drives the drive pulley to rotate, and with the combined action of the drive pulley, synchronous pulley, and synchronous belt, the turntable rotates.

[0015] In a further preferred embodiment, the third track-changing mechanism includes a semi-circular guide rod, a support, and a third track-changing drive cylinder. Third side baffles extending along the conveying direction of the third sub-conveyor belt are respectively provided on both sides of the third sub-conveyor belt. The cylinder body of the third track-changing drive cylinder is mounted on the frame, the support is mounted on the end of the piston rod of the third track-changing drive cylinder, and the semi-circular guide rod is mounted on the support. When the piston rod of the third track-changing drive cylinder is in the extended state, the semi-circular guide rod is located above and outside the arc-shaped turning channel. The arc of the semi-circular guide rod is the same as the arc of the arc-shaped turning channel. The front end of the semi-circular guide rod corresponds to the rear end of the first strip-shaped guide plate, and the rear end of the semi-circular guide rod corresponds to the front end of the third side baffle. The semi-circular guide rod also blocks the front end of the second sub-conveyor belt. When the piston rod of the third track-changing drive cylinder is in the retracted state, the front end of the second strip-shaped guide plate is located outside the front end of the third sub-conveyor belt. The arc of the aforementioned semi-circular guide rod matches the arc-shaped turning channel, conforming fully to the outer arc of the packaging can, ensuring smooth guidance without scraping the shell or jamming the material. When the piston rod of the third track-changing drive cylinder is extended, the semi-circular guide rod can precisely block the entrance of the second conveyor belt, forcing the packaging can to flow unidirectionally into the third conveyor belt, preventing diversion and mixing.

[0016] In a further preferred embodiment, the arc-shaped turning channel includes a semi-circular side baffle and an arc-shaped side baffle. The front end of the semi-circular side baffle corresponds to the rear end of the first strip guide plate, the rear end of the semi-circular side baffle corresponds to the front end of the third side baffle, the front end of the arc-shaped side baffle corresponds to the rear end of another first strip guide plate, and the rear end of the arc-shaped side baffle corresponds to the front end of the second side baffle.

[0017] In a further preferred embodiment, a height detection switch is installed above the main conveyor belt, located in front of the first track-changing mechanism. The signal output terminal of the height detection switch is electrically connected to the corresponding signal input terminal of the controller. The first track-changing drive cylinder, the second track-changing drive cylinder, and the third track-changing drive cylinder are each electrically connected to the corresponding signal output terminal of the controller. The system allows for the selection of which sub-conveyor belt to transport packaging cans of different heights, based on customer requirements. For example, if taller packaging cans are transported via the first sub-conveyor belt and shorter packaging cans via the third sub-conveyor belt: when the height detection switch detects a tall can signal, the controller retracts the piston rod of the first track-changing drive cylinder, aligning the rear ends of the two first strip guide plates with the front ends of the two first side baffles, thus connecting the main conveyor belt and the first sub-conveyor belt. Guided by the two first strip guide plates, the taller packaging can is transported onto the first sub-conveyor belt. When the height detection switch does not detect a tall can signal, the controller retracts the piston rod of the first track-changing drive cylinder. The two first strip guide plates extend so that their rear ends align with the front ends of the arc-shaped turning channel, connecting the main conveyor belt to the arc-shaped turning channel. Simultaneously, the piston rod of the third track-changing drive cylinder extends, aligning the front end of the semi-circular guide rod with the rear ends of the two first strip guide plates and the rear end of the semi-circular guide rod with the front end of the third sub-conveyor belt. This connects the main conveyor belt to the third sub-conveyor belt via the arc-shaped turning channel. Guided by the two first strip guide plates, the short packaging cans are guided onto the turntable and transported along the arc-shaped turning channel to the third sub-conveyor belt, thus achieving intelligent track changing.

[0018] In a further preferred embodiment, the frame is equipped with a lifting and adjusting mechanism, which includes a guide rod, a U-shaped sleeve, a screw, a nut, and a lifting seat. The guide rod is mounted on the frame, and the U-shaped sleeve is fitted onto the guide rod. Two through holes are provided on the two clamping arms of the U-shaped sleeve. The rod portion passes through the two through holes and the nut, and the head of the screw and the nut together clamp the guide rod. The lifting seat is mounted on the U-shaped sleeve, and the height detection switch is mounted on the lifting seat. The tightness of the U-shaped sleeve is adjusted by the cooperation of the screw and the nut, thereby driving the U-shaped sleeve, its lifting seat, and the height detection switch to rise and fall along the guide rod, enabling the height detection switch to detect packaging cans of different heights.

[0019] In a further preferred embodiment, the height detection switch is a through-beam sensor. A through-beam sensor is a non-contact detection device based on the photoelectric conversion principle, which detects objects by changing the optical path formed by a light emitter and a spatially separated receiver.

[0020] Compared with the prior art, this utility model has the following advantages:

[0021] This invention, through the division of labor and cooperation of multiple sets of track-changing mechanisms, can automatically complete the identification, guidance and diversion of the packaging can conveying path according to the height, type or destination of the empty can, realize the intelligent and automated track-changing transfer of packaging cans, and greatly improve the sorting efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the tank changing track to the first conveyor belt in an embodiment of this utility model;

[0023] Figure 2 yes Figure 1 Enlarged diagram of A in the middle;

[0024] Figure 3 yes Figure 1 Top view;

[0025] Figure 4 This is a schematic diagram of the structure of the tank changing track to the second conveyor belt according to an embodiment of the present invention;

[0026] Figure 5 yes Figure 4 Top view;

[0027] Figure 6 This is a schematic diagram of the structure of the tank changing track to the third conveyor belt in an embodiment of this utility model;

[0028] Figure 7 yes Figure 6 Top view. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0030] like Figure 1-7 As shown, the intelligent conveyor belt track-changing device in this embodiment includes a frame 1 and a main conveyor belt 2, as well as a first sub-conveyor belt 3, a second sub-conveyor belt 4, a third sub-conveyor belt 5, an arc-shaped turning channel 6, a first track-changing mechanism 7, a second track-changing mechanism 8, a third track-changing mechanism 9, and a controller, all mounted on the frame 1. The main conveyor belt 2 is mounted on the frame 1. The front end of the first sub-conveyor belt 3 is located on one side of the front end of the arc-shaped turning channel 6, and the rear end of the main conveyor belt 2 corresponds to the front end of the arc-shaped turning channel 6. The front ends of the second sub-conveyor belt 4 and the third sub-conveyor belt 5 both correspond to the rear ends of the arc-shaped turning channel 6. The rear end of the main conveyor belt 2 corresponds to the front end of the first sub-conveyor belt 3 through the first track-changing mechanism 7. The rear end of the arc-shaped turning channel 6 is connected to the front end of the second sub-conveyor belt 4 through the second track-changing mechanism 8, and the rear end of the arc-shaped turning channel 6 is connected to the front end of the third sub-conveyor belt 5 through the third track-changing mechanism 9. The first track-changing mechanism 7, the second track-changing mechanism 8, and the third track-changing mechanism 9 are electrically connected to the corresponding signal output terminals of the controller.

[0031] The terms "front" and "back" are defined as follows: taking the conveying direction of the main conveyor belt 2, the first sub-conveyor belt 3, the second sub-conveyor belt 4, and the third sub-conveyor belt 5 as a reference, the side where the packaging can arrives first is the "front" side, and the side where the packaging can arrives last is the "back" side.

[0032] The packaging cans are continuously and directionally conveyed via the main conveyor belt 2. The system has a pre-programmed control program based on the customer's production diversion requirements.

[0033] When the packaging can needs to be transported to the first sub-conveyor belt 3, the controller controls the first track changing mechanism 7 to deflect and guide, directly diverting the packaging can at the rear end of the main conveyor belt 2 to the first sub-conveyor belt 3, and independently completing the unidirectional discharge transfer.

[0034] When the packaging can does not need to enter the first sub-conveyor belt 3, the first track changing mechanism 7 is reset, and the packaging can smoothly merge into the arc-shaped turning channel 6 for turning transition along with the main conveyor belt 2.

[0035] According to the preset sorting instructions, the controller controls the second track changing mechanism 8 and the third track changing mechanism 9 to start and stop for alignment respectively: when the second track changing mechanism 8 is turned on, the packaging cans in the arc-shaped turning channel 6 are guided to the second sub-conveyor belt 4; when the third track changing mechanism 9 is turned on, the packaging cans are guided to the third sub-conveyor belt 5.

[0036] The first track-changing mechanism 7 includes two first strip-shaped guide plates 71, a U-shaped connecting frame 72, and a first track-changing drive cylinder 73. Main side baffles 21 extending along the conveying direction of the main conveyor belt 2 are respectively provided on both sides of the main conveyor belt 2. The front ends of the two first strip-shaped guide plates 71 are hinged to the rear ends of the corresponding main side baffles 21. The rear ends of the two first strip-shaped guide plates 71 are fixedly connected by the U-shaped connecting frame 72, and the U-shaped connecting frame 72 is positioned above the rear ends of the two first strip-shaped guide plates 71. The cylinder body of the first track-changing drive cylinder 73 is mounted on... On the frame 1, the piston rod end of the first track-changing drive cylinder 73 is connected to the U-shaped connecting frame 72; the first side conveyor belt 3 is provided on both sides with first side baffles 31 extending along the conveying direction of the first side conveyor belt 3; when the piston rod of the first track-changing drive cylinder 73 is in the extended state, the rear ends of the two first strip guide plates 71 correspond to the front ends of the arc-shaped turning channel 6; when the piston rod of the first track-changing drive cylinder 73 is in the retracted state, the rear ends of the two first strip guide plates 71 correspond to the front ends of the two first side baffles 31. The two first strip guide plates 71 are synchronously hinged and linked, and the overall synchronous swing is achieved by relying on the U-shaped connecting frame 72, with symmetrical limit on both sides to avoid the packaging can from deviating or tipping due to force on one side.

[0037] The second track-changing mechanism 8 includes a second strip guide plate 81, a linear guide rail 82, a slider 83, a second track-changing drive cylinder 84, a turntable 85, and a rotation drive mechanism (not shown in the figure) capable of driving the turntable 85 to rotate. The rotation drive mechanism is mounted on the frame 1. The turntable 85 is rotatably mounted on the frame 1 and is located at the intersection of the front end of the main conveyor belt 2, the front end of the second sub-conveyor belt 4, and the front end of the third sub-conveyor belt 5. The turntable 85 is located below the arc-shaped turning channel 6, and the upper end surface of the turntable 85 forms the conveying bottom surface of the arc-shaped turning channel 6. Second side baffles 41 extending along the conveying direction of the second sub-conveyor belt 4 are respectively provided on both sides of the second sub-conveyor belt 4. The linear guide rail 82 is mounted on the frame 1 and is parallel to the conveying direction of the second sub-conveyor belt 4. Block 83 is positioned on and can move on the linear guide rail 82. A second strip guide plate 81 is mounted on the slider 83, positioned in front of and aligned with the second side baffle 41 near the front end of the third sub-conveyor belt 5. The cylinder body of the second track-changing drive cylinder 84 is mounted on the frame 1, and the end of the piston rod of the second track-changing drive cylinder 84 is connected to the slider 83. When the piston rod of the second track-changing drive cylinder 84 is extended, the second strip guide plate 81 blocks the front end of the third sub-conveyor belt 5, and the rear end of the arc-shaped turning channel 6 corresponds to the front end of the second sub-conveyor belt 4. When the piston rod of the second track-changing drive cylinder 84 is retracted, the front end of the second strip guide plate 81 is positioned outside the front end of the third sub-conveyor belt 5. Through the synchronous rotation of the arc-shaped channel and the turntable 85 below it, the bottom surface of the packaging can is fully supported during the arc-shaped reversal, preventing slippage and tipping.

[0038] Typically, the aforementioned rotary drive mechanism includes a drive motor, a drive pulley, a synchronous pulley, and a synchronous belt. The drive motor, drive pulley, and synchronous pulley are all mounted on the frame 1. The drive pulley and synchronous pulley together tension the synchronous belt. The drive pulley is connected to the output shaft of the drive motor. The turntable 85 is coaxially arranged with the synchronous pulley. The drive motor drives the drive pulley to rotate, and with the combined action of the drive pulley, synchronous pulley, and synchronous belt, the turntable 85 rotates.

[0039] The third track-changing mechanism 9 includes a semi-circular guide rod 91, a support 92, and a third track-changing drive cylinder 93. Third side baffles 51 extending along the conveying direction of the third sub-conveyor belt 5 are respectively provided on both sides of the third sub-conveyor belt 5. The cylinder body of the third track-changing drive cylinder 93 is mounted on the frame 1, the support 92 is mounted on the end of the piston rod of the third track-changing drive cylinder 93, and the semi-circular guide rod 91 is mounted on the support 92. When the piston rod of the third track-changing drive cylinder 93 is in the extended state, the semi-circular guide rod 91... Located above and outside the arc-shaped turning channel 6, the semi-circular guide rod 91 has the same curvature as the arc-shaped turning channel 6. The front end of the semi-circular guide rod 91 corresponds to the rear end of the first strip guide plate 71, and the rear end of the semi-circular guide rod 91 corresponds to the front end of the third side baffle 51. The semi-circular guide rod 91 blocks the front end of the second sub-conveyor belt 4. When the piston rod of the third track-changing drive cylinder 93 is in the retracted state, the front end of the second strip guide plate 81 is located outside the front end of the third sub-conveyor belt 5. The curvature of the semi-circular guide rod 91 is consistent with the arc-shaped turning channel 6, fully conforming to the outer arc of the packaging can, ensuring smooth guidance without scraping the shell or jamming the material. When the piston rod of the third track-changing drive cylinder 93 is in the extended state, the semi-circular guide rod 91 can precisely block the entrance of the second sub-conveyor belt 4, forcing the packaging can to flow unidirectionally into the third sub-conveyor belt 5, preventing diversion and mixing.

[0040] The arc-shaped turning channel 6 includes a semi-circular side baffle 61 and an arc-shaped side baffle 62. The front end of the semi-circular side baffle 61 corresponds to the rear end of the first strip guide plate 71, the rear end of the semi-circular side baffle 61 corresponds to the front end of the third side baffle 51, the front end of the arc-shaped side baffle 62 corresponds to the rear end of another first strip guide plate 71, and the rear end of the arc-shaped side baffle 62 corresponds to the front end of the second side baffle 41.

[0041] A height detection switch 10 is provided above the main conveyor belt 2. The height detection switch 10 is located in front of the first track changing mechanism 7. The signal output terminal of the height detection switch 10 is electrically connected to the corresponding signal input terminal of the controller. The first track changing drive cylinder 73, the second track changing drive cylinder 84, and the third track changing drive cylinder 93 are respectively electrically connected to the corresponding signal output terminal of the controller.

[0042] Based on customer requirements, different height packaging cans are configured to be transported onto specific conveyor belts. For example, if taller packaging cans are configured to be transported via the first conveyor belt 3 and shorter packaging cans via the third conveyor belt 5: When the height detection switch 10 detects a tall can signal, the controller retracts the piston rod of the first track-changing drive cylinder 73, aligning the rear ends of the two first strip guide plates 71 with the front ends of the two first side baffles 31. This connects the main conveyor belt 2 with the first conveyor belt 3, guiding the taller packaging cans onto the first conveyor belt 3. When the height detection switch 10 does not detect a tall can signal, the controller extends the piston rod of the first track-changing drive cylinder 73. The rear ends of the two first strip guide plates 71 are aligned with the front ends of the arc-shaped turning channel 6, meaning the main conveyor belt 2 is connected to the arc-shaped turning channel 6. At the same time, the piston rod of the third track-changing drive cylinder 93 is extended, so that the front end of the semi-circular guide rod 91 is aligned with the rear ends of the two first strip guide plates 71, and the rear end of the semi-circular guide rod 91 is aligned with the front end of the third sub-conveyor belt 5. That is, the main conveyor belt 2 is connected to the third sub-conveyor belt 5 through the arc-shaped turning channel 6. Under the guidance of the two first strip guide plates 71, the short packaging can is guided onto the turntable 85 and transported along the arc-shaped turning channel 6 to the third sub-conveyor belt 5, thereby realizing intelligent track changing.

[0043] If the short packaging cans are set to be transported via the second sub-conveyor belt 4: when the height detection switch 10 does not detect a tall can signal, the controller controls the piston rod of the first track-changing drive cylinder 73 to extend, so that the rear ends of the two first strip guide plates 71 correspond to the front ends of the arc-shaped turning channel 6, that is, the main conveyor belt 2 communicates with the arc-shaped turning channel 6. At the same time, the controller controls the piston rod of the second track-changing drive cylinder 84 to extend, so that the second strip guide plate 81 extends forward. The front ends of the second strip guide plate 81 block the front ends of the third sub-conveyor belt 5. The rear ends of the arc-shaped turning channel 6 correspond to the front ends of the second sub-conveyor belt 4, that is, the main conveyor belt 2 communicates with the second sub-conveyor belt 4 through the arc-shaped turning channel 6. Under the guidance of the two first strip guide plates 71, the short packaging cans are guided onto the turntable 85 and transported along the arc-shaped turning channel 6 to the second sub-conveyor belt 4, thereby realizing intelligent track changing.

[0044] The frame 1 is equipped with a lifting adjustment mechanism 11, which includes a guide rod 111, a U-shaped sleeve 112, a screw 113, a nut (not shown in the figure), and a lifting seat 114. The guide rod 111 is mounted on the frame 1, and the U-shaped sleeve 112 is fitted onto the guide rod 111. The two clamping arms of the U-shaped sleeve 112 have two through holes. The rod of the screw 113 passes through the two through holes and the nut, and the head of the screw 113 and the nut together clamp the guide rod 111. The lifting seat 114 is mounted on the U-shaped sleeve 112, and the height detection switch 10 is mounted on the lifting seat 114. The tightness of the U-shaped sleeve is adjusted by the cooperation of the screw and the nut, which in turn drives the U-shaped sleeve 112 and the lifting seat 114 and the height detection switch 10 to move up and down along the guide rod 111, so that the height detection switch 10 can detect packaging cans of different heights.

[0045] The height detection switch 10 is a through-beam sensor. A through-beam sensor is a non-contact detection device based on the photoelectric conversion principle. It detects objects by changing the optical path formed by a light emitter and a spatially separated receiver.

[0046] Furthermore, it should be noted that the names of the various parts of the specific embodiments described in this specification may differ. All equivalent or simple variations made to the structure, features, and principles described in this utility model patent concept are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in these claims, they should all fall within the protection scope of this utility model.

Claims

1. A smart conveyor belt track changing device, comprising a frame and a main conveyor belt, wherein the main conveyor belt is mounted on the frame, characterized in that: It also includes a first sub-conveyor belt, a second sub-conveyor belt, a third sub-conveyor belt, an arc-shaped turning channel, a first track-changing mechanism, a second track-changing mechanism, a third track-changing mechanism, and a controller, all mounted on the frame. The front end of the first sub-conveyor belt is located on one side of the front end of the arc-shaped turning channel, and the rear end of the main conveyor belt corresponds to the front end of the arc-shaped turning channel. The front ends of the second and third sub-conveyor belts both correspond to the rear ends of the arc-shaped turning channel. The rear end of the main conveyor belt corresponds to the front end of the first sub-conveyor belt through the first track-changing mechanism. The rear end of the arc-shaped turning channel is connected to the front end of the second sub-conveyor belt through the second track-changing mechanism, and the rear end of the arc-shaped turning channel is connected to the front end of the third sub-conveyor belt through the third track-changing mechanism. The first, second, and third track-changing mechanisms are electrically connected to the corresponding signal output terminals of the controller.

2. The intelligent track-changing device for conveyor belts according to claim 1, characterized in that: The first track-changing mechanism includes two first strip-shaped guide plates, a U-shaped connecting frame, and a first track-changing drive cylinder. Main side baffles extending along the conveying direction of the main conveyor belt are respectively provided on both sides of the main conveyor belt. The front ends of the two first strip-shaped guide plates are hinged to the rear ends of the corresponding main side baffles. The rear ends of the two first strip-shaped guide plates are fixedly connected by the U-shaped connecting frame, which is positioned above the rear ends of the two first strip-shaped guide plates. The cylinder body of the first track-changing drive cylinder is mounted on the frame, and the end of the piston rod of the first track-changing drive cylinder is connected to the U-shaped connecting frame. First side baffles extending along the conveying direction of the first sub-conveyor belt are respectively provided on both sides of the first sub-conveyor belt. When the piston rod of the first track-changing drive cylinder is in the extended state, the rear ends of the two first strip-shaped guide plates correspond to the front ends of the arc-shaped turning channel. When the piston rod of the first track-changing drive cylinder is in the retracted state, the rear ends of the two first strip-shaped guide plates correspond to the front ends of the two first side baffles.

3. The intelligent track-changing device for conveyor belts according to claim 2, characterized in that: The second track-changing mechanism includes a second strip guide plate, a linear guide rail, a slider, a second track-changing drive cylinder, a turntable, and a rotation drive mechanism capable of driving the turntable to rotate. The rotation drive mechanism is mounted on the frame. The turntable is rotatably mounted on the frame and located at the intersection of the front end of the main conveyor belt, the front end of the second sub-conveyor belt, and the front end of the third sub-conveyor belt. The turntable is located below the arc-shaped turning channel, and the upper end surface of the turntable forms the conveying bottom surface of the arc-shaped turning channel. The second sub-conveyor belt has second side baffles extending along the conveying direction of the second sub-conveyor belt on both sides. The linear guide rail is mounted on the frame and parallel to the conveying direction of the second sub-conveyor belt. The slider is located on the linear guide rail and can move on the linear guide rail. The second strip guide plate is mounted on the slider and is located in front of the second side baffle near the front end of the third sub-conveyor belt and aligned with the second side baffle. The cylinder body of the second track-changing drive cylinder is mounted on the frame, and the end of the piston rod of the second track-changing drive cylinder is connected to the slider. When the piston rod of the second track-changing drive cylinder is in the extended state, the second strip guide plate blocks the front end of the third sub-conveyor belt, and the rear end of the arc-shaped turning channel corresponds to the front end of the second sub-conveyor belt. When the piston rod of the second track-changing drive cylinder is in the retracted state, the front end of the second strip guide plate is outside the front end of the third sub-conveyor belt.

4. The intelligent conveyor belt track changing device according to claim 3, characterized in that: The third track-changing mechanism includes a semi-circular guide rod, a support, and a third track-changing drive cylinder. Third side baffles extending along the conveying direction of the third sub-conveyor belt are respectively provided on both sides of the third sub-conveyor belt. The cylinder body of the third track-changing drive cylinder is mounted on the frame, the support is mounted on the end of the piston rod of the third track-changing drive cylinder, and the semi-circular guide rod is mounted on the support. When the piston rod of the third track-changing drive cylinder is in the extended state, the semi-circular guide rod is located above and outside the arc-shaped turning channel. The arc of the semi-circular guide rod is the same as the arc of the arc-shaped turning channel. The front end of the semi-circular guide rod corresponds to the rear end of the first strip-shaped guide plate, and the rear end of the semi-circular guide rod corresponds to the front end of the third side baffle. The semi-circular guide rod also blocks the front end of the second sub-conveyor belt. When the piston rod of the third track-changing drive cylinder is in the retracted state, the front end of the second strip-shaped guide plate is located outside the front end of the third sub-conveyor belt.

5. The intelligent conveyor belt track changing device according to claim 4, characterized in that: The arc-shaped steering channel includes a semi-circular side baffle and an arc-shaped side baffle. The front end of the semi-circular side baffle corresponds to the rear end of the first strip guide plate, the rear end of the semi-circular side baffle corresponds to the front end of the third side baffle, the front end of the arc-shaped side baffle corresponds to the rear end of another first strip guide plate, and the rear end of the arc-shaped side baffle corresponds to the front end of the second side baffle.

6. The intelligent conveyor belt track changing device according to claim 4, characterized in that: A height detection switch is provided above the main conveyor belt. The height detection switch is located in front of the first track changing mechanism. The signal output terminal of the height detection switch is electrically connected to the corresponding signal input terminal of the controller. The first track changing drive cylinder, the second track changing drive cylinder, and the third track changing drive cylinder are respectively electrically connected to the corresponding signal output terminal of the controller.

7. The intelligent track-changing device for conveyor belts according to claim 6, characterized in that: The frame is equipped with a lifting adjustment mechanism, which includes a guide rod, a U-shaped sleeve, a screw, a nut, and a lifting seat. The guide rod is installed on the frame, and the U-shaped sleeve is fitted onto the guide rod. The two clamping arms of the U-shaped sleeve have two through holes. The rod of the screw passes through the two through holes and the nut, and the head of the screw and the nut together clamp the guide rod. The lifting seat is installed on the U-shaped sleeve, and the height detection switch is installed on the lifting seat.

8. The intelligent track-changing device for conveyor belts according to claim 6, characterized in that: The height detection switch is a through-beam sensor.

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