An automatic suspension conveying device for tarpaulin production

Abstract

This invention discloses an automated hanging conveyor for tarpaulin production, relating to the technical field of tarpaulin production conveying equipment. It includes two hanging pulling mechanisms and an automated conveying mechanism. The two hanging pulling mechanisms are symmetrically installed on the upper end of the automated conveying mechanism. A tail-end sensing mechanism is installed on the lower left side of the automated conveying mechanism. Several tarpaulin clamping mechanisms are installed around the periphery of the automated conveying mechanism, with the lower ends of each clamping mechanism holding corresponding tarpaulin workpieces. The automated conveying mechanism is electrically connected to a PLC chassis via a connecting line. This invention uses a concave conveyor frame combined with sprockets and a transmission chain to form a vertical circulating conveying structure, abandoning the traditional large-footprint circular layout and directly possessing the advantage of occupying less workshop space. Simultaneously, the overall modular design of the equipment allows for flexible addition or reduction of conveying stations and expansion of production lines according to production needs, effectively improving layout flexibility and adapting to different scales of tarpaulin hanging conveying.

Description

Technical Field

[0001] This invention relates to the field of tarpaulin production conveying equipment technology, specifically an automated suspended conveying equipment for tarpaulin production. Background Technology

[0002] Tarpaulin production conveying equipment is mainly divided into two types: roll material roller conveyor and finished product suspension conveyor. Automated suspension conveyor equipment uses overhead tracks, traction chains and special lifting devices to suspend and transfer semi-finished and finished tarpaulins in the air, realizing automated conveying of the entire tarpaulin production process and improving production efficiency and product quality.

[0003] Existing automated overhead conveyor equipment for tarpaulin production uses a circular layout for conveying, which occupies a large amount of space, not only taking up a lot of workshop space, but also hindering the flexible expansion of production lines and the addition or removal of workstations, resulting in poor overall equipment layout flexibility.

[0004] Therefore, we propose a novel automated overhead conveyor system for tarpaulin production to address the aforementioned technical problems. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides an automated hanging conveyor for tarpaulin production, which solves the problems of the aforementioned devices being unfavorable for flexible expansion of production lines and addition / reduction of workstations, and having poor overall equipment layout flexibility.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: an automated hanging conveyor for tarpaulin production, comprising two hanging pulling mechanisms and an automated conveying mechanism, wherein the two hanging pulling mechanisms are symmetrically installed on the upper end of the automated conveying mechanism, a tail end sensing mechanism is installed on the lower left side of the automated conveying mechanism, and a plurality of tarpaulin clamping mechanisms are installed on the periphery of the automated conveying mechanism, wherein the lower ends of the plurality of tarpaulin clamping mechanisms clamp corresponding tarpaulin workpieces, and the automated conveying mechanism is electrically connected to a PLC chassis via a connecting line;

[0009] The automated conveying mechanism includes a concave conveyor frame. Four sprockets are rotatably mounted on the inner side of the lower end of the concave conveyor frame. Bearings are installed at the connection points between the four sprockets and both ends of the concave conveyor frame. A transmission chain is installed around the periphery of the four sprockets. A reducer is mounted on the outer end of the right sprocket on the concave conveyor frame by screws. A geared motor is mounted on the upper end of the reducer by screws. The geared motor is electrically connected to the PLC chassis via a connecting wire.

[0010] Preferably, the reducer is connected to the shaft of the sprocket via a coupling.

[0011] Preferably, the suspension and pulling mechanism includes a suspension mounting plate, which is connected to the workshop top frame by screws. A limit sleeve is welded to the lower middle of the suspension mounting plate. A pull switch is installed at the top of the inner end of the limit sleeve by screws. A pull wire source is installed at the lower end of the pull switch. A T-shaped sleeve rod is fixed to the lower end of the pull wire source and sleeved inside the limit sleeve. A locking bolt is installed at the connection between the limit sleeve and the T-shaped sleeve rod. An assembly end post is welded to the lower end of the T-shaped sleeve rod. The assembly end post is installed on the concave conveyor frame by screws. The pull switch is electrically connected to the PLC chassis by a connecting wire.

[0012] Preferably, the tail end sensing mechanism includes a screw end plate, a pull arm plate is welded to the middle of the lower end of the screw end plate, a limit sleeve is welded to the inner wall of the lower end of the pull arm plate, an infrared sensor is sleeved on the inner end of the limit sleeve, and an assembly screw is installed at the connection between the infrared sensor and the limit sleeve.

[0013] Preferably, the infrared sensor's infrared radiation is located on the outer side of the tarpaulin workpiece.

[0014] Preferably, a tarpaulin clamping mechanism is provided every 1000mm on the transmission chain. The tarpaulin clamping mechanism includes a pull-end rod, an L-shaped arm plate welded to the lower end of the pull-end rod, a fixing pad bonded to the inner wall of the lower end of the L-shaped arm plate with epoxy resin, a metal screw welded to the upper part of the fixing pad on the L-shaped arm plate, a movable clamping plate installed on the periphery of the metal screw inside the adjusting sleeve groove, a rubber clamping plate bonded to the inner groove of the movable clamping plate with epoxy resin, a locking nut threaded on the outer side of the movable clamping plate on the metal screw, two nut handles symmetrically welded to the outer wall of the locking nut, and the upper end of the pull-end rod welded to the outer wall of the transmission chain.

[0015] Preferably, the fixing pad and rubber clamp are held on the outside of the tarpaulin workpiece.

[0016] Preferably, the concave conveyor frame is concave in shape, and an audible and visual alarm is installed on the outer wall of the tail end of the concave conveyor frame by screws. The audible and visual alarm is electrically connected to the PLC chassis via a connecting wire.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides an automated hanging conveyor device for tarpaulin production, which has the following advantages:

[0019] 1. This invention adopts a concave conveyor frame combined with sprockets and transmission chains to form a vertical circulating conveyor structure, abandoning the traditional large-footprint circular layout, and directly has the advantage of occupying little workshop space. At the same time, the overall modular design of the equipment can flexibly add or remove conveyor stations and expand production lines according to production needs, effectively improving the flexibility of equipment layout and adapting to tarpaulin production lines of different sizes.

[0020] 2. The present invention uses a tarpaulin clamping mechanism to form a flexible clamping structure by relying on a fixed rubber pad and a rubber clamping plate. The clamping is stable and will not scratch the surface of the tarpaulin. Furthermore, the suspension pulling mechanism can sense whether the overall suspension has shifted, thereby realizing intelligent monitoring of the suspension height. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the assembled three-dimensional structure of the present invention;

[0022] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of region A of the present invention;

[0023] Figure 3 This is a schematic diagram of the tarpaulin clamping mechanism of the present invention;

[0024] Figure 4 This is a schematic diagram of the tail end sensing mechanism of the present invention;

[0025] Figure 5 This is a cross-sectional schematic diagram of the suspension and tension mechanism of the present invention.

[0026] In the picture:

[0027] 1. Tarpaulin workpiece; 2. Concave conveyor frame; 21. Bearing; 22. Drive chain; 23. Sprocket; 3. Pull arm plate; 31. Screw end plate; 32. Limit sleeve; 33. Assembly screw; 34. Infrared sensor; 4. Reducer; 5. Gear motor; 6. Limit sleeve; 61. Suspension mounting plate; 62. Assembly end column; 63. T-shaped sleeve rod; 64. Pull-wire switch; 65. Pull wire source; 7. Locking bolt; 8. Audible and visual alarm; 9. Pull end rod; 91. L-shaped arm plate; 92. Adjusting sleeve groove; 93. Metal screw; 94. Fixing rubber pad; 95. Nut handle rod; 96. Movable clamp plate; 97. Rubber clamp plate; 98. Locking nut. Detailed Implementation

[0028] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0029] Example 1

[0030] This embodiment provides a technical solution: an automated hanging conveyor device for tarpaulin production, such as... Figures 1-5 As shown, the system includes two suspension and pulling mechanisms, an automated conveying mechanism, a tail-end sensing mechanism, and several tarpaulin clamping mechanisms. The two suspension and pulling mechanisms are symmetrically mounted on the upper end of the automated conveying mechanism, enabling a suspended and fixed installation suitable for high-level workshop deployments. A tail-end sensing mechanism is mounted on the lower left side of the automated conveying mechanism, allowing real-time sensing of the material status at the conveying station and automating station detection. Multiple sets of tarpaulin clamping mechanisms are evenly mounted around the automated conveying mechanism, stably clamping the suspended tarpaulin workpiece 1 and enabling synchronous suspension and conveying of multiple workpieces. The entire automated conveying mechanism is electrically connected to an external PLC chassis via connecting cables, enabling automated start / stop, conveying speed adjustment, and sensor-based linkage control of the entire machine.

[0031] The automated conveying mechanism includes a concave conveyor frame 2, which is hollow inside. The main body of the concave conveyor frame 2 supports the machine frame. Four sprockets 23 are rotatably mounted on the inner side of the lower end of the concave conveyor frame 2. Bearings 21 are installed at the connection points between the four sprockets 23 and both ends of the concave conveyor frame 2, effectively reducing the frictional resistance of the sprockets 23 and ensuring smooth and stable transmission. A transmission chain 22 is fitted around the outer periphery of the four sprockets 23, forming a closed-loop conveying structure. A reducer 4 is screwed onto the outer side of the right sprocket 23 on the end face of the concave conveyor frame 2. A geared motor 5 is fixed to the upper end of the reducer 4 with screws, providing stable power for the cyclical conveying of the transmission chain 22. The transmission chain 22 conveys vertically in a circular manner, reducing the overall placement volume and facilitating flexible expansion of the production line and addition or removal of workstations, resulting in high overall equipment layout flexibility. The geared motor 5 is electrically connected to an external PLC chassis via a connecting cable, allowing the control system to precisely control the start / stop and running speed of the conveyor, adapting to different production conveying rhythms.

[0032] The concave conveyor frame 2 adopts a concave structure design, which has high structural strength and good load-bearing performance. The outer wall of the tail end of the concave conveyor frame 2 is equipped with a sound and light alarm 8 by screws. The sound and light alarm 8 is electrically connected to the external PLC chassis through a connecting line. It can automatically trigger sound and light prompts when there is an abnormality at the work station, material shortage, equipment failure, or when the conveyor reaches the destination, so that the staff can control the equipment operation status in time and improve the intelligence level of the production line.

[0033] The reducer 4 is connected to the shaft of the right sprocket 23 via a coupling, which realizes smooth power reduction and transmission, ensures the uniform and stable operation of the sprocket 23 and the transmission chain 22, improves the stability of the tarpaulin workpiece 1 suspension and conveying, and avoids workpiece swaying and deviation.

[0034] The suspension and tension mechanism includes a suspension mounting plate 61, which serves as the fixed base for the overall machine suspension installation. The suspension mounting plate 61 is secured to the overhead frame of the workshop with screws, ensuring a firm assembly and strong load-bearing stability. A limit sleeve 6 is welded to the lower middle position of the suspension mounting plate 61, forming a vertical telescopic limit base. A pull-wire switch 64 is screwed onto the top of the inner end of the limit sleeve 6, and a pull wire source 65 is mounted on the lower end of the pull wire switch 64. A T-shaped sleeve rod 63 is fixedly connected to the lower end of the pull wire source 65. The T-shaped sleeve rod 63 is vertically fitted inside the limit sleeve 6, enabling vertical telescopic movement. A locking bolt 7 is installed at the connection point between the limit sleeve 6 and the T-shaped sleeve rod 63, locking the telescopic height for compatibility with different suspension installation heights. The pull wire source 65 meets the corresponding pull length, and when the T-shaped sleeve rod 63 moves down 10mm inside the limit sleeve 6, the circuit signal of the pull wire switch 64 is triggered. The lower end of the T-shaped sleeve rod 63 is welded with an assembly end post 62, which is then secured to the upper end of the concave conveyor frame 2 with screws, thus achieving overall suspension and fixation of the concave conveyor frame 2. A pull-wire switch 64 is electrically connected to an external PLC chassis via a connecting wire, and can promptly sense signals and trigger equipment shutdown protection when the equipment experiences abnormal pulling displacement.

[0035] Example 2

[0036] This embodiment is a further optimization based on Embodiment 1. The parts that are the same as those described above will not be repeated here. Figure 1 and Figure 4 As shown, to further better realize the present invention, the following configuration is specifically adopted: the tail end sensing mechanism includes a screw end plate 31, which is a fixed mounting base. The screw end plate 31 is mounted on the lower end of the concave conveyor frame 2 by screws. A pull arm plate 3 is welded to the middle position of the lower end of the screw end plate 31. A limit sleeve 32 is welded to the inner wall of the lower end of the pull arm plate 3. An infrared sensor 34 is fitted inside the limit sleeve 32. An assembly screw 33 is fitted at the connection position between the limit sleeve 32 and the infrared sensor 34. The position of the infrared sensor 34 can be locked and fixed, and it can be disassembled and replaced by the assembly screw 33, making assembly and maintenance convenient.

[0037] The infrared sensor 34 is positioned on the outer side of the tarpaulin workpiece 1 to accurately detect whether there is a tarpaulin workpiece 1 at the workstation. When the tarpaulin workpiece 1 is detected at the tail end, it prompts the personnel to quickly unload the material. The PLC control system slows down the overall conveying process, making it easier for the personnel to unload the tarpaulin workpiece 1 at the tail end.

[0038] Example 3

[0039] This embodiment is a further optimization based on Embodiment 1. The parts that are the same as those described above will not be repeated here. Figures 1-3As shown, in order to better realize the present invention, the following configuration is adopted: the transmission chain 22 is evenly equipped with a set of tarpaulin clamping mechanisms at intervals of 1000mm to ensure that the suspension spacing of the tarpaulin workpiece 1 is regular and uniform, avoid mutual interference of the tarpaulin workpiece 1, and adapt to batch orderly conveying operations.

[0040] The tarpaulin clamping mechanism includes a pull-end rod 9, with an L-shaped arm plate 91 welded to its lower end. A fixing pad 94 is bonded to the inner wall of the lower end of the L-shaped arm plate 91 using epoxy resin. A metal screw 93 is welded to the L-shaped arm plate 91 above the fixing pad 94. A movable clamping plate 96 is mounted on the outer side of the metal screw 93, inside the adjusting groove 92. The movable clamping plate 96 can slide laterally along the metal screw 93 to adjust the clamping distance. The movable clamping plate 96 can be limited in its movement by the adjusting groove 92. A rubber clamping plate 97 is bonded to the groove on the inner wall of the movable clamping plate 96 using epoxy resin. The rubber clamping plate 97 increases the clamping friction while preventing hard compression damage to the surface of the tarpaulin workpiece 1. A locking nut 98 is threaded onto the outer side of the movable clamping plate 96, on the metal screw 93. The locking nut 98 is used to lock and fix the clamping position. Two sets of nut handles 95 are symmetrically welded to the outer wall of the locking nut 98, which facilitates manual adjustment without the need for special tools and is easy to operate. The upper end of the pull end rod 9 is welded and fixed to the outer wall of the transmission chain 22. The pull end rod 9 moves synchronously with the transmission chain 22 to achieve continuous conveying operation.

[0041] The fixed rubber pad 94 and the rubber clamp 97 work together to flexibly clamp and wrap around the outside of the tarpaulin workpiece 1 from both sides. The double-sided flexible clamping structure clamps firmly and can effectively prevent the tarpaulin from slipping and wrinkling during transportation, thus ensuring the stability and reliability of the transportation process.

[0042] Working principle: During use, the entire machine is suspended and assembled on the top frame of the workshop via two sets of suspension mounting plates 61 of the suspension pulling mechanism. The T-shaped sleeve rod 63 is adjusted according to the installation height on site, and after adjustment, it is locked and fixed by locking bolts 7 to ensure that the concave conveyor frame 2 is horizontally and stably suspended. The geared motor 5, pull switch 64, infrared sensor 34, and audible and visual alarm 8 are connected to the external PLC box to complete the equipment power-on debugging and parameter setting.

[0043] During transport, the operator loosens the locking nut 98 by tightening the nut lever 95, adjusts the spacing of the movable clamping plates 96, and places the side of the tarpaulin workpiece 1 between the fixed rubber pad 94 and the rubber clamping plate 97. Tightening the locking nut 98 securely clamps the workpiece. Multiple tarpaulin clamping mechanisms suspend and fix multiple sets of tarpaulin workpieces 1 at uniform intervals of 1000mm. When the equipment is running, the PLC system starts the reduction motor 5. Power is transmitted through the reducer 4 and coupling to the right-end sprocket 23, driving the four sets of sprockets 23 and the transmission chain 22 to rotate in a closed loop at a uniform speed, thus synchronously and smoothly transporting each set of tarpaulin workpieces. During transport, the tail-end infrared sensor 34 senses the workpiece transport status in real time, enabling automatic station identification and production line start / stop linkage. When abnormal pulling or loosening of the suspension occurs, the pull-wire switch 64 senses the signal and feeds it back to the PLC, causing the equipment to stop immediately for protection. Simultaneously, the audible and visual alarm 8 issues corresponding warning signals based on the operating conditions.

[0044] The wiring diagrams for the PLC chassis, geared motor, pull-wire switch, and infrared sensor in this invention are common knowledge in the field, and their working principles are known technologies. The appropriate model should be selected according to the actual use. Therefore, the control methods and wiring layouts of the PLC chassis, geared motor, pull-wire switch, and infrared sensor will not be explained in detail.

[0045] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. An automated overhead conveying apparatus for tarpaulin production comprising two overhead pulling mechanisms and an automated conveying mechanism, characterized in that, Two suspension and pulling mechanisms are symmetrically installed on the upper end of the automated conveying mechanism. A tail end sensing mechanism is installed on the lower left side of the automated conveying mechanism. Several tarpaulin clamping mechanisms are installed on the periphery of the automated conveying mechanism. The lower ends of several tarpaulin clamping mechanisms clamp the corresponding tarpaulin workpiece (1). The automated conveying mechanism is electrically connected to the PLC chassis through a connecting line. The automated conveying mechanism includes a concave conveyor frame (2), on which four sprockets (23) are rotatably mounted. Bearings (21) are installed at the connection points between the four sprockets (23) and both ends of the concave conveyor frame (2). A transmission chain (22) is installed around the four sprockets (23). A reducer (4) is installed on the outer end of the right sprocket (23) on the concave conveyor frame (2) by screws. A geared motor (5) is installed on the upper end of the reducer (4) by screws. The geared motor (5) is electrically connected to the PLC chassis by a connecting wire.

2. An automated overhead conveyor for tarpaulin production as claimed in claim 1, characterized in that: The reducer (4) is connected to the shaft of the sprocket (23) via a coupling.

3. An automated overhead conveyor system for tarpaulin production as claimed in claim 1, wherein: The suspension and pulling mechanism includes a suspension mounting plate (61), which is connected to the workshop top frame by screws. A limit sleeve (6) is welded to the middle of the lower end of the suspension mounting plate (61). A pull switch (64) is installed at the top of the inner end of the limit sleeve (6) by screws. A pull wire source (65) is installed at the lower end of the pull switch (64). A T-shaped sleeve rod (63) is fixed to the lower end of the pull wire source (65) and sleeved inside the limit sleeve (6). A locking bolt (7) is installed at the connection between the limit sleeve (6) and the T-shaped sleeve rod (63). An assembly end post (62) is welded to the lower end of the T-shaped sleeve rod (63). The assembly end post (62) is installed on the concave conveyor frame (2) by screws. The pull switch (64) is electrically connected to the PLC chassis by a connecting wire.

4. An automated overhead conveyor system for tarpaulin production as claimed in claim 1, wherein: The tail end sensing mechanism includes a screw end plate (31), a pull arm plate (3) is welded to the middle of the lower end of the screw end plate (31), a limit sleeve (32) is welded to the inner wall of the lower end of the pull arm plate (3), an infrared sensor (34) is sleeved on the inner end of the limit sleeve (32), and an assembly screw (33) is installed at the connection between the infrared sensor (34) and the limit sleeve (32).

5. An automated overhead conveyor system for tarpaulin production as claimed in claim 4, wherein: The infrared sensor (34) has its infrared rays located on the outside of the tarpaulin workpiece (1).

6. An automated overhead conveyor system for tarpaulin production as claimed in claim 1, wherein: The transmission chain (22) is provided with a tarpaulin clamping mechanism every 1000mm. The tarpaulin clamping mechanism includes a pull end rod (9). The lower end of the pull end rod (9) is welded with an L-shaped arm plate (91). The inner wall of the lower end of the L-shaped arm plate (91) is bonded with a fixing pad (94) by epoxy resin. The upper part of the fixing pad (94) is welded on the L-shaped arm plate (91) with a metal screw (93). The periphery of the metal screw (93) is installed on the inner side of the adjusting sleeve groove (92) with a movable clamping plate (96). The inner wall groove of the movable clamping plate (96) is bonded with a rubber clamping plate (97) by epoxy resin. The outer side of the movable clamping plate (96) is threaded on the metal screw (93) with a locking nut (98). The outer wall of the locking nut (98) is symmetrically welded with two nut handles (95). The upper end of the pull end rod (9) is welded to the outer wall of the transmission chain (22).

7. An automated overhead conveyor system for tarpaulin production as claimed in claim 6, wherein: The fixing pad (94) and the rubber clamp (97) are held on the outside of the tarpaulin workpiece (1).

8. An automated overhead conveyor system for tarpaulin production as claimed in claim 1, wherein: The concave conveyor frame (2) is concave in shape. An audible and visual alarm (8) is installed on the outer wall of the tail end of the concave conveyor frame (2) by screws. The audible and visual alarm (8) is electrically connected to the PLC chassis by a connecting wire.

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