Tray conveying device

Abstract

The utility model provides a charging tray conveying device, which belongs to the technical field of daylily processing and transportation and comprises a conveying platform, a first charging tray supporting component and a second charging tray supporting component, and the first charging tray supporting component and the second charging tray supporting component are arranged below the conveying platform at intervals. An interval is formed between any two adjacent conveying rollers, and the first material tray supporting assembly and the second material tray supporting assembly can penetrate through the interval to ascend and descend; a first material tray supporting assembly and a second material tray supporting assembly are arranged below a first station section and a second station section below a conveying platform, and in the material tray conveying process, material trays are supported from conveying rollers of the conveying platform through the first material tray supporting assembly and the second material tray supporting assembly; in the conveying process, the charging tray is prevented from making direct contact with the conveying rollers, and the problem that the charging tray is continuously abraded on the conveying platform is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to day lily processing and transportation technical field, especially relate to a tray conveying device. BACKGROUND

[0002] Day lily, also known as golden needle, lemon day lily, and forgetful grass, is a perennial herbaceous plant belonging to lily order and lily family. It keeps fresh green from spring to late autumn and has green ornamental effect. Day lily also has edible value and is a common seasonal vegetable. Eating day lily regularly can moisturize the skin, enhance the toughness and elasticity of the skin, and make the skin have less wrinkles and fading of color spots, thus having a cosmetic effect. Day lily also has antibacterial and immune functions, mild anti-inflammatory and detoxification effects, and certain effect in preventing infection.

[0003] After day lily is picked and collected, it needs to be manually packed from the storage basket and evenly laid in a flat tray for processing such as transfer and fixation, which is time-consuming and laborious and has low efficiency. For example, an invention patent application with application number CN202311171043.1 discloses a day lily packing device and method, which includes a vibrating screen, a belt conveyor, a first discharging member, a second discharging member, a roller conveyor, a tray stopping member, and a square tray. A storage bin is arranged on the vibrating screen. The transmission belt of the belt conveyor is located below the discharge port of the vibrating screen. The first discharging member is located between the vibrating screen and the belt conveyor and can rotate to discharge. The second discharging member is connected with the belt conveyor and arranged on the side away from the first discharging member. Through the mutual cooperation of the vibrating screen, the belt conveyor, the first discharging member, the second discharging member, the roller conveyor, the tray stopping member, and the square tray, the day lily is distributed in a segmented manner on the belt conveyor. When the square tray is replaced, the day lily falling from the belt conveyor is prevented from falling outside the square tray. At the same time, the day lily in the square tray is laid in turn and evenly distributed in layers.

[0004] However, the driving motor on the roller conveyor continuously rotates in this scheme. When the tray stopping member on the roller conveyor is raised, the tray on the left side of the tray stopping member is always in a transmission state, which causes the tray to be continuously rubbed during the stop process. This not only easily damages the tray but also causes noise and vibration, resulting in damage or omission of the day lily in the tray. SUMMARY

[0005] Therefore, the utility model provides a tray conveying device to solve the problems in the background art.

[0006] A tray conveying device comprises a conveying platform and a first tray supporting assembly and a second tray supporting assembly arranged below the conveying platform, the conveying platform is provided with a plurality of conveying rollers arranged in parallel, and a space is arranged between any two adjacent conveying rollers, the first tray supporting assembly and the second tray supporting assembly can pass through the space to be lifted, the conveying platform has a first station section corresponding to the first tray supporting assembly and a second station section corresponding to the second tray supporting assembly in the conveying direction of the conveying platform, and the end of the first station section and the end of the second station section are provided with a set of in-place sensors, and the first tray supporting assembly, the second tray supporting assembly and the two sets of in-place sensors are electrically connected with each other.

[0007] Preferably, the first tray supporting assembly and the second tray supporting assembly each comprise a lifting driving element, a cross plate and two supporting plates, the lifting driving element is arranged below the conveying platform, the cross plate is arranged at the output end of the lifting driving element and between the lifting driving element and the conveying platform, and the two supporting plates are arranged on the side of the cross plate away from the lifting driving element in the conveying direction, the distance between the two supporting plates is less than the length of the tray in the conveying direction, and the two supporting plates can be lifted synchronously through the two spaces, and the lifting driving element is electrically connected with the two sets of in-place sensors.

[0008] Preferably, a weight sensor is arranged on the upper end surface of each supporting plate, and the weight sensor is electrically connected with the lifting driving element.

[0009] Preferably, two limiting grooves are arranged on the bottom of the tray in the direction perpendicular to the conveying direction, and the two limiting grooves of the tray correspond to the two supporting plates of the first tray supporting assembly.

[0010] Preferably, the set of in-place sensors comprises a first in-place sensor, a second in-place sensor and a fixed rod, the fixed rod is arranged on the outer frame of the conveying platform, the first in-place sensor and the second in-place sensor are arranged in the height direction on the fixed rod in a spaced manner, and the first tray supporting assembly, the second tray supporting assembly, the first in-place sensor and the second in-place sensor are electrically connected with each other, the first in-place sensor corresponds to the conveying plane of the conveying platform, the second in-place sensor of the first station section corresponds to the height position of the first tray supporting assembly in the extended state, and the second in-place sensor of the second station section corresponds to the height position of the second tray supporting assembly in the extended state.

[0011] Preferably, the in-place sensor group is a light curtain sensor, the maximum extension position of the first tray supporting assembly and the second tray supporting assembly is a first position, and the detection height of the light curtain sensor is from the conveying plane of the conveying platform to the first position.

[0012] Preferably, the conveying platform further comprises a platform frame and a driving motor, a plurality of the conveying rollers are sequentially and spacedly arranged in parallel on the platform frame, both ends of each of the conveying rollers are provided with gears, and the gears at both ends of adjacent conveying rollers are sequentially and drivingly connected through a transmission chain, and the driving motor is arranged on the conveying roller at one end of the conveying platform.

[0013] By adopting the above technical scheme, compared with the prior art, the present application has at least the following beneficial effects:

[0014] The first tray supporting assembly and the second tray supporting assembly are arranged below the first work station section and the second work station section of the conveying platform, in the process of conveying the tray, the tray is lifted from the conveying rollers of the conveying platform by the first tray supporting assembly and the second tray supporting assembly, direct contact between the tray and the conveying rollers is avoided in the conveying process, and thus continuous abrasion of the tray on the conveying platform is avoided.

[0015] In addition, the in-place sensor is arranged at the end of the first work station section and the second work station section of the conveying platform, the position information of the tray conveyed to the first work station section and the second work station section is detected in time by the in-place sensor, and the position information of the tray is transmitted to the first tray supporting assembly and the second tray supporting assembly, when the tray reaches the first work station section and the second work station section, the first tray supporting assembly and the second tray supporting assembly are started to lift, so that the tray is lifted from the conveying platform, and continuous abrasion of the tray on the conveying rollers is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a structural schematic view of a prior art tray conveying platform.

[0017] Figure 2 FIG. 2 is a structural schematic view of a tray conveying platform of the present application.

[0018] Figure 3 FIG. 3 is a structural schematic view of a conveying platform.

[0019] Figure 4 FIG. 4 is another structural schematic view of a conveying platform.

[0020] Figure 5 FIG. 5 is a structural schematic view of a weight sensor arrangement structure of a second tray supporting assembly.

[0021] Figure 6 FIG. 6 is a structural schematic view of a tray bottom limiting groove.

[0022] In the figure: tray 10, limiting groove 11, stop piece 2, baffle 210, elevator 220, roller 4, conveying platform 20, platform frame 21, conveying roller 22, driving motor 23, first station section 31, second station section 32, first tray supporting assembly 41, second tray supporting assembly 42, lifting driving piece 421, cross plate 422, supporting plate 423, weight sensor 424, in-place sensor set 50, first in-place sensor 51, second in-place sensor 52, fixed rod 53. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The technical solutions of the present application will be further described below in combination with the drawings of the embodiments of the present application. The present application is not limited to the following specific embodiments.

[0024] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components. In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "left", "right", "front", "back", "top", "bottom", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated structure or component must have a particular orientation, be constructed and operated in a particular orientation. Therefore, the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present patent. For those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0025] Prior art as shown in Figure 1 : In the figure, the tray 10 is conveyed on the conveying platform 20, the roller 4 is rotated under the driving of the driving motor 23, thereby driving the tray 10 to convey, the stop piece 2 includes the baffle 210 and the elevator 220, when the tray 10 conveys the day lily to the bottom of the conveying platform 20, the baffle 210 of the stop piece 2 is lifted under the pushing of the elevator 220, the baffle 210 blocks the tray 10 to contain the day lily, but at this time, the driving motor 23 is still working, the tray 10 on the left side blocked by the stop piece 2 is always conveying left and right friction, causing continuous wear on the bottom of the tray 10, when the tray 10 is completely filled with day lily, the baffle 210 is lowered by the elevator 220, and the filled tray 10 continues to convey on the conveying platform 20 to convey the day lily out.

[0026] The present application will be further described below in combination with the drawings of the embodiments of the present application. Figure 2 to the drawings of the embodiments of the present application. Figure 6 and specific embodiments.

[0027] The utility model provides a tray conveying device, including conveying platform 20 and interval setting first tray support subassembly 41 and second tray support subassembly 42 in conveying platform 20 below, conveying platform 20 is provided with a plurality of conveying roller 22 parallelly, interval is provided with between any two adjacent conveying roller 22, first tray support subassembly 41 and second tray support subassembly 42 can all pass through interval and lift, conveying platform 20 has the first station section 31 corresponding with first tray support subassembly 41, second station section 32 corresponding with second tray support subassembly 42 in its conveying direction, and the end of first station section 31 and second station section 32 all are provided with in -place sensor group 50, first tray support subassembly 41 and second tray support subassembly 42 and two in -place sensor group 50 all are mutually electrically connected.

[0028] When the in -place sensor group 50 of first station section 31 end does not detect the information of tray 10 when tray 10 is transported on conveying platform 20, tray 10 continues to transport on conveying platform 20, transports to second station section 32, when the in -place sensor group 50 of second station section 32 end detects the information of tray 10, the information of detected tray 10 is transmitted to second tray support subassembly 42 below second station section 32, and the lifting drive 421 below second tray support subassembly 42 is started, drives tray 10 on second station section 32 to lift, starts to fill with clematis hexapetala; when tray 10 is transported to first station section 31, the information of tray 10 is transmitted to first tray support subassembly 41 below first station section 31 after the in -place sensor group 50 of first station section 31 end detects the information of tray 10, and the lifting drive 421 below first tray support subassembly 41 is started, drives tray 10 on first station section 31 to lift, and tray 10 is lifted from the conveying roller 22 of conveying platform 20 through first tray support subassembly 41 and second tray support subassembly 42, to avoid the wear and tear of the bottom of tray 10 caused by the continuous contact of tray 10 with conveying roller 22 in the transmission process.

[0029] Further, first tray support subassembly 41 and second tray support subassembly 42 all include lifting drive 421, cross plate 422 and two support plates 423, lifting drive 421 is set below conveying platform 20, cross plate 422 is set at the output end of lifting drive 421, and is located between lifting drive 421 and conveying platform 20, two support plates 423 are set apart in the conveying direction on the side of cross plate 422 away from lifting drive 421, the setting interval of two support plates 423 is less than the length of tray 10 in the conveying direction, two support plates 423 can lift through two intervals synchronously, and lifting drive 421 is electrically connected with two in -place sensor groups 50.

[0030] The position information of the tray 10 transferred to the first work station section 31 and the second work station section 32 is detected by the in-place sensor set 50 arranged on the conveying platform 20, and then transmitted to the lifting drive 421 below the first tray support assembly 41 and the second tray support assembly 42. The lifting drive 421 is activated to drive the first tray support assembly 41 and the second tray support assembly 42 to lift, thereby lifting the tray 10 from the conveying platform 20 to avoid continuous wear of the tray 10 on the conveying roller 22.

[0031] In addition, the loading weight of the tray 10 on the second work station section 32 cannot be accurately detected during the transfer of the tray 10 above the conveying platform 20, which can easily cause the tray 10 on the second work station section 32 to be overfilled or underfilled during the loading of the day lily.

[0032] To avoid such situations, further, the weight sensor 424 is arranged on the upper end surface of the support plate 423, and the weight sensor 424 is electrically connected to the lifting drive 421.

[0033] The weight sensor 424 arranged on the upper end surface of the support plate 423 of the second tray support assembly 42 can detect the loading weight of the day lily in real time during the loading of the day lily into the tray 10. If the weight of the day lily loaded into the tray 10 is about 10 kg when the tray 10 is full, the upper and lower limit values of the weight signal of the weight sensor 424 are set to 9.5 kg to 10.5 kg. When the weight sensor 424 detects that the weight of the day lily loaded into the tray 10 reaches this range, the weight signal is transmitted to the lifting drive 421 below the second tray support assembly 42, and the lifting drive 421 is activated to drive the tray 10 to descend to the horizontal plane of the conveying platform 20, and then the full day lily loaded into the tray 10 is conveyed out by the conveying platform 20.

[0034] Further, two limiting grooves 11 are arranged on the bottom of the tray 10 perpendicular to the conveying direction, and the two limiting grooves 11 correspond to the two support plates 423 of the first tray support assembly 41 and the second tray support assembly 42.

[0035] Since the tray 10 needs to be supported by the two support plates 423 under the first tray support assembly 41 and the second tray support assembly 42 during the conveying process, the tray 10 is lifted from the conveying roller 22 of the conveying platform 20 to avoid continuous friction of the tray 10 on the conveying roller 22. In order to avoid the tray 10 from slipping when being lifted by the support plates 423, two limiting grooves 11 are provided on the bottom of the tray 10 in the direction perpendicular to the conveying direction, and the support plates 423 correspond to the limiting grooves 11 on the bottom of the tray 10, so as to avoid the tray 10 from slipping when being lifted by the support plates 423.

[0036] Further, the in-place sensor set 50 comprises a first in-place sensor 51, a second in-place sensor 52 and a fixed rod 53. The first in-place sensor 51 and the second in-place sensor 52 can be one of an infrared sensor, a photoelectric sensor or other sensors capable of detecting object signals. The fixed rod 53 is arranged on the outer frame of the conveying platform 20, and the first in-place sensor 51 and the second in-place sensor 52 are arranged in the height direction and spaced apart from each other on the fixed rod 53. The first tray support assembly 41, the second tray support assembly 42, the first in-place sensor 51 and the second in-place sensor 52 are electrically connected to each other. The first in-place sensor 51 corresponds to the conveying plane of the conveying platform 20, and the second in-place sensor 52 of the first workpiece section 31 corresponds to the height position of the first tray support assembly 41 in the extended state, so as to ensure that the tray 10 can be detected when being lifted and lowered by the lifting driving element 421. The second in-place sensor 52 of the second workpiece section 32 corresponds to the height position of the second tray support assembly 42 in the extended state.

[0037] When the first in-place sensor 51 and the second in-place sensor 52 of the second workpiece section 32 do not detect the information of the tray 10 when the tray 10 is conveyed on the conveying platform 20, the tray 10 on the first workpiece section 31 continues to be conveyed forward on the conveying platform 20. When the tray 10 is conveyed to the second workpiece section 32, the first in-place sensor 51 of the second workpiece section 32 detects the signal of the tray 10 and transmits the signal to the lifting driving element 421 under the second tray support assembly 42. The lifting driving element 421 is started to lift the second tray support assembly 42. After the tray 10 on the second workpiece section 32 is filled with the day lily, the weight sensor 424 on the support plate 423 of the second tray support assembly 42 detects the weight change and transmits the weight signal to the lifting driving element 421 under the second tray support assembly 42. The lifting driving element 421 falls to lower the tray 10 on the second workpiece section 32, and the tray 10 is conveyed out through the conveying platform 20.

[0038] Specifically, in another embodiment, the in-position sensor group 50 is a light curtain sensor, the maximum extended position of the first tray support assembly 41 and the second tray support assembly 42 is a first position, and the detection height of the light curtain sensor is from the conveying plane of the conveying platform 20 to the first position. Since the light curtain sensor has a vertical height, it is not necessary to set two sensors up and down, and only one sensor can detect the object information on the conveying platform 20 plane and the vertical height.

[0039] Further, the conveying platform 20 further comprises a platform frame 21 and a driving motor 23, a plurality of conveying rollers 22 are sequentially and spacedly arranged on the platform frame 21, both ends of each conveying roller 22 are provided with a gear, and the gears at both ends of adjacent conveying rollers 22 are sequentially and drivingly connected through a transmission chain, and the driving motor 23 is arranged on the conveying roller 22 at one end of the conveying platform 20.

[0040] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. Based on the above description, those skilled in the art can make other different forms of changes or modifications. Here, it is not necessary and impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tray conveying device, characterized by: The first tray supporting assembly and the second tray supporting assembly are both capable of lifting through the intervals, the conveying platform has a first work station section corresponding to the first tray supporting assembly and a second work station section corresponding to the second tray supporting assembly in the conveying direction thereof, and the ends of the first work station section and the second work station section are both provided with a position sensor set, and the first tray supporting assembly, the second tray supporting assembly and the two position sensor sets are all electrically connected with each other.

2. The tray conveying apparatus according to claim 1, characterized by: The first tray supporting assembly and the second tray supporting assembly both include a lifting drive, a cross plate and two supporting plates, the lifting drive is arranged below the conveying platform, the cross plate is arranged at the output end of the lifting drive and between the lifting drive and the conveying platform, the two supporting plates are arranged at the side of the cross plate away from the lifting drive in the conveying direction and the interval between the two supporting plates is smaller than the length of a tray in the conveying direction, the two supporting plates are capable of lifting through the two intervals synchronously, and the lifting drive is electrically connected with the two position sensor sets.

3. The tray conveying apparatus according to claim 2, characterized by: A weight sensor is arranged on the upper end surface of the supporting plate and is electrically connected with the lifting drive.

4. The tray conveying apparatus of claim 2, wherein: Two limiting grooves are arranged on the bottom of a tray in the direction perpendicular to the conveying direction and correspond to the two supporting plates of the first tray supporting assembly.

5. The tray delivery device of claim 1, wherein: The position sensor set includes a first position sensor, a second position sensor and a fixing rod, the fixing rod is arranged on the outer side frame of the conveying platform, the first position sensor and the second position sensor are arranged at the fixing rod in the height direction respectively, and the first tray supporting assembly, the second tray supporting assembly, the first position sensor and the second position sensor are all electrically connected with each other, the first position sensor corresponds to the conveying plane of the conveying platform, the second position sensor of the first work station section corresponds to the height position of the first tray supporting assembly in the extended state, and the second position sensor of the second work station section corresponds to the height position of the second tray supporting assembly in the extended state.

6. The tray delivery device of claim 1, wherein: The position sensor set is a light curtain sensor, the maximum extended position of the first tray supporting assembly and the second tray supporting assembly is a first position, and the detection height of the light curtain sensor is from the conveying plane of the conveying platform to the first position.

7. The tray delivery device of claim 1, wherein: The conveying platform further includes a platform frame and a driving motor, the conveying rollers are arranged on the platform frame in sequence and in parallel with intervals, the two ends of the conveying rollers are both provided with gears, the gears at the two ends of the adjacent conveying rollers are connected in sequence through a transmission chain, and the driving motor is arranged on the conveying roller at one end of the conveying platform.

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