Powdery emulsion explosive conveying line

Abstract

The utility model relates to the technical field of emulsion explosive production, in particular to a powdery emulsion explosive conveying line. The positions and the number of the trays are positioned through the tray detection assembly and the photoelectric sensing assembly, and only when the first tray arrives at the terminal point of the conveying line and stops, and the second tray is just transferred to the starting point of the conveying line, the voice prompt device is triggered to broadcast a voice instruction that explosive loading and unloading can be conducted. At the moment, loading and unloading workers enter the site according to voice instructions to load and unload explosives. In the transferring process, a transferring driver does not need to wait at a loading position for a long time and only enters the loading position after the trays are prepared, so that the problem of overloading is effectively avoided; the trays at the two end points can trigger the tray detection assembly to control the roller conveyor of the section to stop, so that the second tray on the conveying line cannot enter the last section of roller conveyor, and the problem of excess is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to emulsion explosive production technical field especially a powdery emulsion explosive conveying line. BACKGROUND

[0002] After the powdery emulsion explosive is encapsulated by the full-automatic packing machine, the packing bag is conveyed to the stacking position through the finished product conveying line, and then is grabbed by the mechanical hand and placed on the tray to be stacked and transferred. There are usually two stacking and transferring modes: one mode is that the tray is completely extended to the specified position in the transport vehicle and stops, and when a group is stacked, the tray moves a fixed distance into the vehicle to leave the unstacked part, and the mechanical hand stacks again, and the above-mentioned action is repeated, and when the stacking is completed, the tray is also completely moved into the transfer vehicle; the other mode is to use a separate tray transport system, and the transfer vehicle itself does not provide the tray. When the transfer vehicle reaches the loading workshop, the empty tray in the vehicle is unloaded onto the conveying belt, and then the transport vehicle is parked at the loading position, and the transport tray reaches the specified position to stack the finished explosive, and then the tray is transported into the transfer vehicle through the conveying belt after the stacking is completed.

[0003] The explosive production line needs to meet the strict requirements of fixed number and quantity, and the large amount of explosive retained in the loading process site easily leads to overloading. The first loading mode needs the transfer vehicle to be parked in the loading position in advance to wait for the completion of stacking, and the long waiting time easily causes the overstaffing phenomenon that the transfer driver and the post operator are simultaneously present in the same operation site. For the second transfer mode, the overloading phenomenon is also caused by the fact that the transfer vehicle does not timely transfer when several trays are stacked. That is, both the above-mentioned two transfer modes may have the problems of overstaffing and overloading, which makes the explosive transfer process have high safety risk. UTILITY MODEL CONTENTS

[0004] In view of the problem that the existing explosive transfer process is easy to cause overstaffing and overloading and affect the safety risk of the workshop, the utility model provides a powdery emulsion explosive conveying line.

[0005] According to the powdery emulsion explosive conveying line provided by the utility model, the conveying line is composed of a plurality of independent roller conveyors arranged in sequence.

[0006] The conveying line is composed of a plurality of independent roller conveyors arranged in sequence.

[0007] The control unit is installed on the conveying line and is configured to control the other roller conveyor to start when it is sensed that the tray is about to be transferred to the other roller conveyor, control the roller conveyor to stop when it is sensed that the tray is about to leave the roller conveyor, and control the roller conveyor at the end of the conveying line to keep stopping and send a control instruction to the voice prompt device when it is sensed that there are a plurality of trays on the conveying line and the first tray is at the end of the conveying line.

[0008] When the voice prompting device receives the control instruction, it broadcasts a voice prompt to the waiting staff that tray loading and unloading can be performed.

[0009] Preferably, the conveying line comprises a first roller conveyor, a second roller conveyor, a third roller conveyor and a fourth roller conveyor arranged in sequence in a straight line.

[0010] Preferably, the control unit comprises:

[0011] A tray detection assembly is installed at one end of each roller conveyor near the output port for sensing the relative position between the tray and the roller conveyor and controlling the start and stop of the adjacent two roller conveyors according to the position state.

[0012] A photoelectric sensing assembly is installed on one side of the conveying line for sensing whether there are at least two trays on the conveying line in cooperation with the tray detection assembly at the end of the conveying line.

[0013] Preferably, the tray detection assembly comprises a bracket, a baffle and a proximity switch.

[0014] The bracket is fixedly installed on the base at one end of each roller conveyor near the output port.

[0015] The baffle is rotatably installed on the fixed shaft at one side of the bracket and the top end of the baffle is higher than the transportation plane of the roller conveyor through the gap between the two idlers.

[0016] The proximity switch is fixedly installed on the bracket below the fixed shaft, the triggering end of the proximity switch is located on the rotating path of the baffle, and the proximity switch is electrically connected to the motors in the adjacent two roller conveyors for respectively controlling the start and stop of the motors in the adjacent two roller conveyors.

[0017] Preferably, a return torsional spring is installed between the baffle and the fixed shaft.

[0018] Preferably, a counterweight is arranged at the bottom end of the baffle.

[0019] Preferably, the photoelectric sensing assembly comprises a photoelectric switch.

[0020] The photoelectric switch is fixedly installed on the guide plate at one end of the roller conveyor near the input end, the photoelectric switch projects a light beam towards the transportation plane of the roller conveyor for sensing whether there is a tray on the roller conveyor.

[0021] Preferably, the photoelectric switch comprises a first photoelectric switch, a second photoelectric switch and a third photoelectric switch.

[0022] The first photoelectric switch, the second photoelectric switch and the third photoelectric switch are fixedly installed at one side of the input end of the first drum conveyor, the third drum conveyor and the fourth drum conveyor respectively.

[0023] Preferably, the first photoelectric switch is arranged obliquely to ensure that the light beam projected thereby intersects with the light beam projected by the second photoelectric switch.

[0024] Preferably, the first photoelectric switch and the second photoelectric switch jointly control a first relay; the third photoelectric switch controls a second relay independently; and the first relay and the second relay are connected in series with the voice prompting device.

[0025] The tray detection assembly and the photoelectric sensing assembly are used for positioning the position and quantity of the tray, and the voice prompting device is triggered to broadcast the voice instruction for loading and unloading the explosive only when the first tray has arrived at the terminal point of the conveying line and stopped and the second tray is just transferred to the starting point of the conveying line, so that the loading and unloading workers can load and unload the explosive according to the voice instruction. Since the voice is broadcast when the second tray is just transferred to the starting point of the conveying line, and the second tray still has a certain transfer time from the starting point to the terminal point of the conveying line, the workers can use the idle time to complete the transfer of the first tray, so that the efficiency of the whole transfer process is ensured. In the transfer process, first, the transfer driver does not need to wait at the loading position for a long time, and only enters the field after the trays are prepared, so that the problem of overstaffing is effectively avoided; second, the tray at the terminal point triggers the tray detection assembly to control the drum conveyor of the section to stop, so that the second tray on the conveying line cannot enter the last drum conveyor, and the problem of overloading is effectively avoided.

[0026] That is, the conveying line of the utility model can avoid the problems of overstaffing and overloading in the explosive transfer process, and ensure the transfer efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 Fig. 1 is a structural schematic view of the conveying line of the utility model;

[0028] Figure 2 Fig. 2 is a structural schematic view of the drum conveyor of the utility model;

[0029] Figure 3 Fig. 3 is a structural schematic view of the tray detection assembly of the utility model;

[0030] Figure 4 Fig. 4 is a structural schematic view of the photoelectric sensing assembly of the utility model;

[0031] Figure 5 Fig. 5 is a signal control schematic view of the voice prompting device of the utility model; Figure 1 ;

[0032] Figure 6 The voice prompt device signal control is simple Figure 2 ;

[0033] In the figure: 1, a roller conveyor; 2, the second roller conveyor; 3, the third roller conveyor; 4, the fourth roller conveyor; 5, the carrier roller; 6, the motor; 7, the baffle; 703, the counterweight; 8, the proximity switch; 9, the fixed shaft; 10, the photoelectric switch; 101, the light beam receiver; 102, the light beam transmitter; 11, the guide plate; 12, the base. DETAILED DESCRIPTION

[0034] The utility model will be explained in detail below in combination with specific embodiments. The following embodiments will help the person skilled in the art further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for the person skilled in the art, on the premise of not departing from the utility model concept, a number of changes and improvements can be made. These all belong to the protection scope of the utility model.

[0035] As Figures 1-2 shown, the utility model provides a kind of powdered emulsion explosive conveying line, including

[0036] Conveying line, the conveying line is made of multiple independent roller conveyors sequentially arranged;

[0037] Control unit, the control unit is installed on conveying line and is configured to perceive that tray is about to transfer to another roller

[0038] Conveyor, control the another roller conveyor start;Perceive that tray is about to leave a certain roller conveyor, control the roller conveyor stop;Perceive that there are multiple trays on conveying line and first tray is at the end of conveying line, control the roller conveyor at the end of conveying line always keep stop state and send control instruction to voice prompt device;

[0039] When the voice prompt device receives the control instruction, the voice prompt that can carry out tray loading and unloading is broadcasted to waiting staff.

[0040] The independent roller conveyors are controlled by the control unit, which makes the start and stop of the whole conveyor more flexible. When the tray is transferred to the start point of the conveying line, the roller conveyor at the start point will transfer the tray to the adjacent next roller conveyor. When the control unit senses or detects that the front side of the tray is about to move beyond the output end of the roller conveyor at the start point and move to the connection between the adjacent two roller conveyors, i.e. about to be transferred from the roller conveyor at the start point to the next roller conveyor, the control unit will start the motor 6 of the next roller conveyor, so that the output shaft of the motor 6 transmits the torque to the tray roller 5 through the chain and the chain wheel in sequence, so that the tray roller 5 rotates to ensure the smooth transfer of the tray between the two adjacent roller conveyors.

[0041] With the transfer of the tray across the roller conveyor, the tray will eventually leave the roller conveyor at the start point. Therefore, when the control unit senses that the tray is about to leave the roller conveyor at the start point, it means that most of the tray has been transferred to the next roller conveyor, and the next roller conveyor has the ability to independently transfer the tray. At this time, the control unit will control the roller conveyor at the start point to stop until the second tray is transferred to the roller conveyor at the start point. By analogy, the tray moves from the start point of the conveying line to the end point of the conveying line under the coordination of the control unit.

[0042] In this process, it should be noted that when a tray has been placed on the roller conveyor at the end point of the conveying line, even if the second tray is transferred to the output end of the last roller conveyor of the conveying line, the control unit will not trigger the roller conveyor at the end point of the conveying line to start. In this way, on the one hand, the first tray is prevented from falling to the ground due to insufficient transfer time; on the other hand, the problem of excessive explosives caused by the concentration of multiple trays on the roller conveyor at the end point is avoided.

[0043] When the control unit senses that a tray is placed on the roller conveyor at the end point and a new tray is placed on the roller conveyor at the start point, the control unit will send a control instruction to the voice prompting device. After receiving the control instruction, the voice prompting device reminds the staff waiting outside the factory to enter the loading and unloading site for loading and unloading through the loudspeaker. Since the timing of the voice prompt is when the new tray is just placed on the roller conveyor at the start point, the arrival time of the second tray at the end point is the time gap for the staff to carry the first tray. This can make the second tray arrive at the loading and unloading site when the first tray is being transferred, which avoids the problem of excessive staff caused by the staff waiting at the loading and unloading site between the arrival of the trays, and ensures the continuity of the unloading of a tray and improves the efficiency and safety of the loading and unloading of explosives.

[0044] The conveying line comprises a first roller conveyor 1, a second roller conveyor 2, a third roller conveyor 3 and a fourth roller conveyor 4 arranged in sequence.

[0045] The control unit comprises:

[0046] A tray detection assembly is installed at one end of each roller conveyor near the output port for sensing the relative position between the tray and the roller conveyor and controlling the start and stop of the adjacent two roller conveyors according to the position state;

[0047] A photoelectric sensing assembly is installed on one side of the conveying line for sensing whether there are at least two trays on the conveying line in cooperation with the tray detection assembly at the end of the conveying line.

[0048] The tray detection assembly comprises a bracket, a baffle 7 and a proximity switch 8;

[0049] The bracket is fixedly installed on the base 12 at one end of each roller conveyor near the output port;

[0050] The baffle 7 is rotatably installed on the fixed shaft 9 at one side of the bracket, and the top end of the baffle 7 is higher than the conveying plane of the roller conveyor by passing through the gap between the two idlers 5;

[0051] The proximity switch 8 is fixedly installed on the bracket below the fixed shaft 9, the triggering end of the proximity switch 8 is located on the rotating path of the baffle 7, and the proximity switch 8 is electrically connected with the motors 6 in the adjacent two roller conveyors for respectively controlling the start and stop of the motors 6 in the adjacent two roller conveyors.

[0052] A reset torsional spring is installed between the baffle 7 and the fixed shaft 9.

[0053] A counterweight 703 is arranged at the bottom end of the baffle 7.

[0054] The photoelectric sensing assembly comprises a photoelectric switch 10;

[0055] The photoelectric switch 10 is fixedly installed on the guide plate 11 at one end of the roller conveyor near the input end, the photoelectric switch 10 projects a light beam towards the conveying plane of the roller conveyor for sensing whether there is a tray on the roller conveyor.

[0056] The photoelectric switch 10 comprises a first photoelectric switch 10, a second photoelectric switch 10 and a third photoelectric switch 10;

[0057] The first photoelectric switch 10, the second photoelectric switch 10 and the third photoelectric switch 10 are respectively fixedly installed on one side of the input end of the first roller conveyor 1, the third roller conveyor 3 and the fourth roller conveyor 4.

[0058] The first photoelectric switch 10 is arranged obliquely to ensure that the light beam projected thereby intersects with the light beam projected by the second photoelectric switch 10.

[0059] The first photoelectric switch 10 and the second photoelectric switch 10 jointly control a first relay; the third photoelectric switch 10 controls a second relay independently; the first relay and the second relay are connected in series with a voice prompting device.

[0060] As shown in Figures 3-4 As shown in the figure, since the first photoelectric switch 10 is fixedly installed on the input side of the first roller conveyor 1, when the first tray is transferred onto the first roller conveyor 1, it will be immediately sensed by the first photoelectric switch 10, and the motor 6 of the first roller conveyor 1 will be triggered to start, conveying the first tray to the second roller conveyor 2. When the front side of the first tray is about to reach between the first roller conveyor 1 and the second roller conveyor 2, the front end of the first tray will press down the upper part of the baffle 7 higher than the conveying plane of the first roller conveyor 1, so that the upper end of the baffle 7 can rotate around the fixed shaft 9, and the deflected baffle 7 will block the proximity switch 8, triggering the proximity switch 8 to control the motor 6 of the second roller conveyor 2 to start. As the first tray is continuously transferred, it will continuously press down the upper end of the baffle 7, until most of the bottom surface of the first tray is transferred onto the second roller conveyor 2, at which time the second roller conveyor 2 has enough contact area with the first tray, and can independently complete the transfer task of the first tray. Therefore, when the tail of the first tray is separated from the top of the baffle 7, the baffle 7 will reset to the initial position under the action of the reset torsional spring or the counterweight 703, and the reset baffle 7 will no longer block the proximity switch 8, and the proximity switch 8 will control the motor 6 of the first roller conveyor 1 to stop, avoiding the idling of the first roller conveyor 1 and wasting power.

[0061] The transfer process of the first tray from the second roller conveyor 2 to the third roller conveyor 3, and from the third roller conveyor 3 to the fourth roller conveyor 4 is consistent with the above, and will not be described in detail here. When the first tray reaches the output end of the fourth roller conveyor 4 under the transportation of the fourth roller conveyor 4, the first tray will press down the baffle 7 installed on the fourth roller conveyor 4, triggering the motor 6 of the fourth roller conveyor 4 to stop, at which time the first tray will stop at the output end of the fourth roller conveyor 4, waiting for loading and unloading. At the same time, when the first tray enters the fourth roller conveyor 4, it will be detected by the third photoelectric switch 10 installed at the input end of the fourth roller conveyor 4, and the third photoelectric switch 10 will control the second relay to close.

[0062] This completes the transfer of the first pallet. During the transfer, neither the transfer driver nor the on-site operators need to wait at the loading position, but rather outside the workshop, which directly avoids the problem of overcrowding in the workshop.

[0063] like Figures 5-6 As shown, when the second pallet is transferred to conveyor belt 1, it is detected by photoelectric switch 10, which then controls relay 1 to close. At this time, both relays 1 and 2 are closed, making the circuit for the voice prompt device complete. The voice prompt device then emits a voice reminder via loudspeaker that explosives loading is possible. Workers and drivers waiting outside the workshop can then proceed to the loading / unloading position to load / unload the first pallet based on the voice command. During the loading / unloading of the first pallet, the second pallet is simultaneously moving towards the end of the conveyor line. Once the first pallet is unloaded, the second pallet will also be nearing its destination, ensuring that workers can quickly complete the loading / unloading of two pallets per vehicle, guaranteeing speed and efficiency.

[0064] When the first pallet is loaded and unloaded and leaves the No. 4 roller conveyor, the pressure on the upper baffle 7 of the No. 4 roller conveyor will be released. At this time, the stop lock state of the No. 4 roller conveyor will be released, ensuring that the second pallet can be smoothly transferred from the No. 3 roller conveyor to the No. 4 roller conveyor.

[0065] To ensure sufficient time for the voice prompts and prevent situations where the prompts are too short to effectively reach the loading and unloading workers and drivers, the beam emitter 102 of the first photoelectric switch 10 is deflected towards the beam emitted by the beam emitter 102 of the second photoelectric switch 10. This causes the beam emitted by the first photoelectric switch 10 and the beam emitted by the second photoelectric switch 10 to intersect and reflect back into the beam receiver 101. Thus, when the second pallet is transferred from the first roller conveyor 1 to the third roller conveyor 3, the second pallet will always be within the detection range of either the first or second photoelectric switch 10. This ensures that the voice prompt device is always working while the second pallet is moving from the first roller conveyor 1 to the third roller conveyor 3, reminding the relevant personnel to reach the designated location and preventing situations where the prompt time is too short and affects the scheduling results.

[0066] Each two trays is a group, repeating the above process, the realization of the tray in place before the loading personnel are all in the yard outside the waiting room, tray to place after the loading personnel can timely into the field and quickly complete two tray explosives transfer, avoid the yard in excess of the number of people in the loading and unloading site waiting for the situation caused by the overstaffing, but also to ensure the transfer efficiency. In addition, the shutdown of the fourth drum conveyor 4 locking and the second tray on the conveying line control voice prompt device start, voice command to inform the workers into the field transfer, ensure that the conveying line every two trays, and tray to tray can not happen collision and aggregation, avoid the problem of excessive explosives. Thus solve the traditional explosives production line transfer process in the overstaffing and overage problem, to ensure the safety of production.

Claims

1. A powdered emulsion explosive delivery line, characterised in that, The utility model provides a kind of tray conveying system, including Conveying line, the conveying line is made of the multiple independent cylinder conveyors sequentially arranged; Control unit, the control unit is installed on conveying line and is configured to perceive when tray is about to transfer to next cylinder conveyor, control the start of next cylinder conveyor;Perceive when tray is about to leave certain cylinder conveyor, control the stop of the cylinder conveyor;Perceive when multiple trays are on conveying line and first tray is at the end of conveying line, control the cylinder conveyor at the end of conveying line keeps stop state and sends control instruction to voice prompting device; When the control instruction is received by the voice prompting device, the voice prompt that can carry out tray loading and unloading is broadcasted to waiting staff.

2. The powdered emulsion explosive delivery line of claim 1, wherein: The conveying line includes a first cylinder conveyor (1), a second cylinder conveyor (2), a third cylinder conveyor (3) and a fourth cylinder conveyor (4) arranged in a straight line.

3. The powdered emulsion explosive delivery line of claim 1, wherein: The control unit includes: Tray detection assembly, the tray detection assembly is installed at one end of each cylinder conveyor near the output port, for sensing the relative position between the tray and the cylinder conveyor, and controlling the start and stop of the adjacent two cylinder conveyors according to the position state; Photoelectric sensing assembly, the photoelectric sensing assembly is installed on one side of the conveying line, for sensing whether there are at least two trays on the conveying line in cooperation with the tray detection assembly at the end of the conveying line.

4. The powdered emulsion explosive delivery line of claim 3, wherein: The tray detection assembly includes a bracket, a baffle (7) and a proximity switch (8); The bracket is fixedly installed on the base (12) at one end of each cylinder conveyor near the output port; The baffle (7) is rotatably installed on the fixed shaft (9) at one side of the bracket, and the top end of the baffle (7) is higher than the transportation plane of the cylinder conveyor through the gap between the two rollers (5); The proximity switch (8) is fixedly installed on the bracket below the fixed shaft (9), the triggering end of the proximity switch (8) is located on the rotating path of the baffle (7), and the proximity switch (8) is electrically connected with the motors (6) in the adjacent two cylinder conveyors for controlling the start and stop of the motors (6) in the adjacent two cylinder conveyors respectively.

5. The powdered emulsion explosive delivery line of claim 4, wherein: A reset torsional spring is installed between the baffle (7) and the fixed shaft (9).

6. The powdered emulsion explosive delivery line of claim 4, wherein: The bottom end of the baffle (7) is provided with a counterweight (703).

7. The powdered emulsion explosive delivery line of claim 3, wherein: The photoelectric sensing assembly includes a photoelectric switch (10); The photoelectric switch (10) is fixedly installed on the guide plate (11) at one end of the cylinder conveyor near the input end, and the photoelectric switch (10) projects a light beam towards the transportation plane of the cylinder conveyor for sensing whether there is a tray on the cylinder conveyor.

8. The powdered emulsion explosive delivery line of claim 7, wherein: The photoelectric switch (10) includes a first photoelectric switch (10), a second photoelectric switch (10) and a third photoelectric switch (10); The first photoelectric switch (10), the second photoelectric switch (10) and the third photoelectric switch (10) are fixedly installed on one side of the input end of the first cylinder conveyor (1), the third cylinder conveyor (3) and the fourth cylinder conveyor (4) respectively.

9. The powdered emulsion explosive delivery line of claim 8, wherein: The first photoelectric switch (10) is arranged obliquely to ensure that the light beam projected thereby intersects with the light beam projected by the second photoelectric switch (10).

10. The powdered emulsion explosive delivery line of claim 8, wherein: The first photoelectric switch (10) and the second photoelectric switch (10) jointly control a first relay; the third photoelectric switch (10) independently controls a second relay; the first relay and the second relay are connected in series with a voice prompting device.

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