Plastic straw mat collecting and releasing device

Abstract

The invention discloses a plastic straw mat collecting and releasing device, and relates to the technical field of salt drying and salt manufacturing equipment. Comprising a floating lever, first traction ropes, second traction ropes and fourth traction ropes, the floating lever is connected with the two fourth traction ropes in the plastic straw mat opening direction, the two first traction ropes and the two second traction ropes are installed and connected in the plastic straw mat folding direction, and when the plastic straw mat is opened, the floating lever is dragged by the fourth traction ropes to move in the plastic straw mat opening direction. Double optimization of cost and space is achieved through structure optimization and flexible layout, in the aspect of equipment cost, the scheme abandons a huge reel which needs to be strictly matched with the size of a salt pond of traditional equipment, the design of scattered traction is adopted, core equipment only comprises a take-up roller, a traction rope and the like, in the aspect of site cost, the layout structure of the traction rope is compact, and the layout structure is compact. The take-up roller can be placed in parallel along the long edge of the salt pond so as not to affect road passage, and can also be placed in parallel along the short edge so that the motor can be away from high salt mist erosion of the salt pond.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of salt evaporation salt making equipment, in particular to a plastic tarpaulin winding and unwinding device. BACKGROUND

[0002] Salt evaporation technology is a traditional salt making technology that uses solar energy and wind energy to evaporate water in seawater, salt lake brine or underground salt brine, so that salt gradually crystallizes and is separated and purified. It has the characteristics of low energy consumption, low cost and relatively simple process. It is one of the most widely used salt making methods in the world. Plastic tarpaulin is a key auxiliary material in modern salt evaporation technology that optimizes production efficiency and ensures salt quality. The combination of the two significantly improves the controllability and stability of salt evaporation.

[0003] The salt pond has a large area, usually hundreds or even thousands of square meters. A single piece of plastic tarpaulin needs to cover the entire salt pond, and the weight alone can reach dozens of kilograms. If it is rolled up manually, it may take one to two hours and several people need to work together. Automatic equipment needs to be strictly matched with the size of the salt pond. For example, the reel diameter needs to correspond to the area of the cloth, and the width needs to correspond to the width of the plastic tarpaulin. The equipment occupies a large area and has high costs. To address this situation, the present application proposes a new solution to improve the above problems. SUMMARY

[0004] The purpose of the present application is to provide a plastic tarpaulin winding and unwinding device to solve the problems raised in the background.

[0005] To achieve the above purpose, the present application provides the following technical solution: a plastic tarpaulin winding and unwinding device, comprising:

[0006] The floating lever is connected with two traction ropes four in the opening direction of the plastic tarpaulin, and is connected with two traction ropes two and two traction ropes three in the winding direction of the plastic tarpaulin. When the plastic tarpaulin is opened, the floating lever is moved in the opening direction of the plastic tarpaulin by the traction ropes four;

[0007] A take-up roller is provided on the long side of the salt pond. The take-up roller is used to drive the traction ropes one, two, three and four to drive the winding and unwinding of the plastic tarpaulin;

[0008] The traction ropes four extend along the opening direction of the plastic tarpaulin towards the short side of the salt pond, and are received into the take-up roller after two corners. The traction ropes one and two extend along the winding direction of the plastic tarpaulin towards the short side of the salt pond, and after two corners, the traction ropes one and two are directed towards the take-up roller.

[0009] Further to the scheme, a plurality of guide rail sliders are slidably arranged inside the two long sides of the salt pond, the guide rail sliders are equidistantly arranged and a plurality of small sliders are arranged between every two guide rail sliders for connecting the plastic tarpaulin, a traction rope one is connected to each guide rail slider, a plurality of traction rope ones drive the guide rail sliders to move and push the small sliders in the process to make the small sliders fold the plastic tarpaulin and then pile on the shore.

[0010] Further to the scheme, the traction rope two and the traction rope three are combined into a wire bundle at the long side of the salt pond and are stored in the take-up roller, so that the traction rope two and the traction rope three maintain the same traction speed.

[0011] Further to the scheme, the traction rope one is provided with five groups, the traction rope one connected to each pair of guide rail sliders is one group, each group of traction rope one extends along the plastic tarpaulin folding direction towards the short side of the salt pond and is stored in the take-up roller after two turns.

[0012] Further to the scheme, a guide wire ring is arranged at each corner on the path of the traction rope one, the traction rope two, the traction rope three and the traction rope four, and / or a pulley is arranged to avoid winding.

[0013] Further to the scheme, the take-up roller includes a winding roller one and a winding roller two, two wire discs are arranged on the winding roller one for winding the traction rope four, and six wire discs are arranged on the winding roller two for winding the traction rope two, the traction rope three and the traction rope one.

[0014] Further to the scheme, the diameter of the wire disc on the winding roller one is the same as the diameter of the wire disc corresponding to the traction rope two and the traction rope three on the winding roller two, and the diameters of the five wire discs for connecting the five groups of traction rope one are in a proportional relationship with the lengths of the corresponding traction rope one.

[0015] Further to the scheme, the winding roller one and the winding roller two of the take-up roller are coaxially arranged, and the winding roller one and the winding roller two are connected through a clutch, the take-up roller is arranged in parallel along the long side of the salt pond, and the traction ropes are separated through a guide wire ring near the winding shaft.

[0016] Further to the scheme, the take-up roller is arranged in parallel along the short side of the salt pond to reduce the risk of motor corrosion by the salt pond.

[0017] Further to the scheme, after the plastic tarpaulin is folded back, the winding roller one rotates independently to reduce the tension of the two traction rope fours so as to pull the two traction rope fours to the two banks of the salt pond respectively.

[0018] Compared with the prior art, the beneficial effects of the present application are:

[0019] The plastic tarpaulin winding and unwinding device realizes the double optimization of cost and space through structural optimization and flexible layout. In terms of equipment cost, the scheme discards the traditional large-scale reel which needs to be strictly matched with the size of the salt pond, adopts a decentralized traction design, and the core equipment only includes a take-up roller and a traction rope. In terms of site cost, the traction rope layout structure is compact and almost does not occupy site space. The take-up roller can be placed parallel along the long side of the salt pond to not affect road traffic, or can be placed parallel along the short side to make the motor away from the salt pond high salt mist erosion, without the need for additional occupation of a large area of site, adapting to the diversified site conditions of the salt pond, solving the application bottleneck of high cost and difficult site occupation of traditional equipment;

[0020] At the same time, through the full-automatic traction and synchronous winding and unwinding mechanism, the efficiency is improved. The scheme avoids the jam caused by the pulling of the rope through the coordinated action of the take-up roller, and realizes the fast and uniform winding and unwinding of the plastic tarpaulin. The whole process can be compressed from several hours to several minutes. In addition, automatic operation almost does not need manual cooperation, which reduces the labor intensity and safety risk of salt workers, and provides a basic guarantee for the stability of the quality of salt products in the salt drying process.

[0021] Moreover, the traction rope one adopts Kevlar rope, which not only ensures the tensile strength in the traction process, but also reduces the equipment load to reduce the motor energy consumption. All the corners of the traction rope are provided with wire guide rings or pulleys, which effectively reduces the corner stress, avoids winding and wear, and prolongs the service life of the rope. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0023] Figure 2 It is a schematic diagram of the take-up roller structure of the present application;

[0024] Figure 3 It is a schematic diagram of the structure of one embodiment of the take-up roller of the present application;

[0025] Figure 4 It is a schematic diagram of the structure of another embodiment of the winding and unwinding device of the present application.

[0026] In the figure: 1, salt pond; 2, floating lever; 3, guide rail slider; 4, traction rope one; 5, traction rope two; 6, traction rope three; 7, traction rope four; 8, take-up roller; 801, roll one; 802, roll two. DETAILED DESCRIPTION

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1

[0029] like Figure 1 As shown, the present invention provides a technical solution: a plastic sheeting retraction device, including a floating bar 2, a first traction rope 4, a second traction rope 5, and a fourth traction rope 7. The floating bar 2 is connected to two fourth traction ropes 7 along the opening direction of the plastic sheeting, and two first traction ropes 4 and two second traction ropes 5 are installed and connected along the retraction direction of the plastic sheeting. When the plastic sheeting is opened, the floating bar 2 is dragged along the opening direction of the plastic sheeting by the fourth traction ropes 7, thereby covering the salt pond 1 with the plastic sheeting and achieving the purpose of opening the plastic sheeting. Typically, the salt pond 1 is rectangular. In this embodiment, the fourth traction rope 7 also extends along the salt pond 1... Slide rails are installed on the inner sides of the two long sides of the tarpaulin. Several guide rail sliders 3 are equidistantly arranged on the slide rails. Several small sliders are arranged between every two guide rail sliders 3 for connecting with the plastic tarpaulin. A traction rope 1 4 is installed and connected to each guide rail slider 3. Several traction ropes 1 4 drive the guide rail sliders 3 to move and push the small sliders in the process so that they accumulate on the bank after the plastic tarpaulin is taken up. A take-up roller 8 is set on one side of the long bank of the salt pond 1. The take-up roller 8 is used to drive the traction ropes 1 4, traction rope 2 5, traction rope 3 6 and traction rope 4 7 to drive the taking up and taking down of the plastic tarpaulin.

[0030] like Figure 1 As shown, to ensure the smooth implementation of this embodiment, it is necessary to know that the two traction ropes 25, traction rope 36 and traction rope 47 are all 6mm Kevlar ropes for traction. The tensile strength of Kevlar rope is more than 5 times that of steel wire of the same weight, but its weight is only one-fifth of that of steel wire and one-half of that of aluminum alloy, ensuring tensile strength during the traction process.

[0031] The traction rope 4 connected to each guide rail slider 3 is made of 3mm Kevlar rope, which can guide the small slider to store the plastic tarpaulin while reducing costs.

[0032] To ensure the smooth implementation of this embodiment, it is necessary to know that the two traction ropes 47 extend towards the short side of the salt pool 1 along the opening direction of the plastic cover, and are adjusted at the corner and stored on the take-up roller 8. A guide ring or pulley is set at the corner to reduce corner stress and avoid tangling.

[0033] like Figure 1As shown, it is also necessary to understand about the scheme, the traction rope three 6 and the traction rope two 5 extend along the plastic tarpaulin winding direction to the short side of the salt pond 1, and adjust the angle at the corner to make the traction rope three 6 and the traction rope two 5 towards the take-up roller 8, and combine the traction rope three 6 and the traction rope two 5 into a wire bundle at a position of the long side of the salt pond 1 and store in the take-up roller 8, and set a wire ring or pulley at the corner to reduce the corner stress and avoid winding.

[0034] As shown, it is also necessary to understand about the scheme, the traction rope three 6 and the traction rope two 5 extend along the plastic tarpaulin winding direction to the short side of the salt pond 1, and adjust the angle at the corner to make the traction rope three 6 and the traction rope two 5 towards the take-up roller 8, and combine the traction rope three 6 and the traction rope two 5 into a wire bundle at a position of the long side of the salt pond 1 and store in the take-up roller 8, and set a wire ring or pulley at the corner to reduce the corner stress and avoid winding.

[0035] As shown, it is also necessary to understand about the scheme, the traction rope three 6 and the traction rope two 5 extend along the plastic tarpaulin winding direction to the short side of the salt pond 1, and adjust the angle at the corner to make the traction rope three 6 and the traction rope two 5 towards the take-up roller 8, and combine the traction rope three 6 and the traction rope two 5 into a wire bundle at a position of the long side of the salt pond 1 and store in the take-up roller 8, and set a wire ring or pulley at the corner to reduce the corner stress and avoid winding. Figure 1 As shown, it is also necessary to understand about the scheme, the traction rope three 6 and the traction rope two 5 extend along the plastic tarpaulin winding direction to the short side of the salt pond 1, and adjust the angle at the corner to make the traction rope three 6 and the traction rope two 5 towards the take-up roller 8, and combine the traction rope three 6 and the traction rope two 5 into a wire bundle at a position of the long side of the salt pond 1 and store in the take-up roller 8, and set a wire ring or pulley at the corner to reduce the corner stress and avoid winding.

[0036] As shown, it is also necessary to understand about the scheme, the traction rope three 6 and the traction rope two 5 extend along the plastic tarpaulin winding direction to the short side of the salt pond 1, and adjust the angle at the corner to make the traction rope three 6 and the traction rope two 5 towards the take-up roller 8, and combine the traction rope three 6 and the traction rope two 5 into a wire bundle at a position of the long side of the salt pond 1 and store in the take-up roller 8, and set a wire ring or pulley at the corner to reduce the corner stress and avoid winding. Figure 2 As shown, it is also necessary to understand about the scheme, the traction rope three 6 and the traction rope two 5 extend along the plastic tarpaulin winding direction to the short side of the salt pond 1, and adjust the angle at the corner to make the traction rope three 6 and the traction rope two 5 towards the take-up roller 8, and combine the traction rope three 6 and the traction rope two 5 into a wire bundle at a position of the long side of the salt pond 1 and store in the take-up roller 8, and set a wire ring or pulley at the corner to reduce the corner stress and avoid winding.

[0037] As shown, it is also necessary to understand about the scheme, the traction rope three 6 and the traction rope two 5 extend along the plastic tarpaulin winding direction to the short side of the salt pond 1, and adjust the angle at the corner to make the traction rope three 6 and the traction rope two 5 towards the take-up roller 8, and combine the traction rope three 6 and the traction rope two 5 into a wire bundle at a position of the long side of the salt pond 1 and store in the take-up roller 8, and set a wire ring or pulley at the corner to reduce the corner stress and avoid winding. Figure 2 As shown, it is also necessary to understand about the scheme, the traction rope three 6 and the traction rope two 5 extend along the plastic tarpaulin winding direction to the short side of the salt pond 1, and adjust the angle at the corner to make the traction rope three 6 and the traction rope two 5 towards the take-up roller 8, and combine the traction rope three 6 and the traction rope two 5 into a wire bundle at a position of the long side of the salt pond 1 and store in the take-up roller 8, and set a wire ring or pulley at the corner to reduce the corner stress and avoid winding.

[0038] As Figure 3 shown, as an alternative embodiment of the above embodiment, the winding roller one 801 and the winding roller two 802 of the take-up roller 8 are coaxially arranged, and the winding roller one 801 and the winding roller two 802 are connected through a clutch device such as a magnetic powder clutch and a coaxial clutch. Through the use of the clutch type take-up structure, the take-up and pay-off action of the traction rope can be achieved. It can be understood that the single shaft type take-up roller 8 can be placed parallel to the long side of the salt pond 1, which has less impact on the road passing on the long shore side. The traction ropes are separated by the guide rings near the take-up roller 8, so that the traction ropes are not easily entangled with each other. The traction ropes are separated by the guide rings near the winding shaft, so that the traction ropes are not easily entangled with each other. The take-up roller 8 can also be placed parallel to the short side of the salt pond 1, so that the motor is away from the salt pond 1, reducing the risk of the motor being eroded by the salt pond 1.

[0039] In order to facilitate the construction of salt workers, the two traction ropes four 7 in the middle need to be pulled to the shore. Therefore, after the plastic tarpaulin is retracted, the power link between the winding roller one 801 and the winding roller two 802 is disconnected through the clutch, and the motor output shaft continues to rotate to make the two traction ropes four 7 loose, and the two traction ropes in the middle are pulled to the edge of the salt pond 1.

[0040] Embodiment two

[0041] As Figure 4 shown, two take-up rollers 8 are arranged at the positions of the two corners of the short side of the salt pond where the plastic tarpaulin is retracted, and the two traction ropes three 6 are cancelled, so that the two traction ropes two 5 are close to the shore. Therefore, the two traction ropes in the middle no longer need to be pulled, reducing the operation steps of retracting the plastic tarpaulin. That is, the two take-up rollers 8 are respectively used to wind the traction ropes corresponding to the long shore side. Since the traction rope three 6 is cancelled, seven wire reels corresponding to one side of each take-up roller 8 are arranged, which are respectively the wire reels corresponding to the five traction ropes one 4, and the two wire reels of the traction rope three 6 and the traction rope four 7. Similarly, the diameters of the five wire reels used to connect the five traction ropes one 4 are in a proportional relationship with the lengths of the corresponding traction ropes one 4. In this case, the use of a large number of traction ropes can be reduced, the cost is reduced, and unilateral winding reduces the resistance in the traction rope winding process, thereby reducing the failure rate of the entire device.

[0042] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic sheet storage and handling device, characterized in that, include: The floating bar (2), traction rope one (4), traction rope two (5) and traction rope four (7) are connected to the floating bar (2) along the opening direction of the plastic cover, and two traction ropes two (5) and two traction ropes three (6) are installed and connected along the retracting direction of the plastic cover. When the plastic cover is opened, the floating bar (2) is dragged along the opening direction of the plastic cover by the traction rope four (7). A take-up roller (8) is installed on one side of the long bank of the salt pond (1). The take-up roller (8) is used to drive the first traction rope (4), the second traction rope (5), the third traction rope (6) and the fourth traction rope (7) to drive the plastic tarpaulin to be taken up and put down. The fourth traction rope (7) extends along the opening direction of the plastic cover towards the short side of the salt pool (1), and after two turns, it is stored at the take-up roller (8). The first traction rope (4) and the second traction rope (5) extend along the retracting direction of the plastic cover towards the short side of the salt pool (1), and after two turns, the first traction rope (4) and the second traction rope (5) are directed toward the take-up roller (8).

2. The plastic sheet storage and take-up device according to claim 1, characterized in that: Several guide rail sliders (3) are slidably arranged on the inner side of the two long sides of the salt pond (1). The guide rail sliders (3) are equidistant from each other and several small sliders are arranged between every two guide rail sliders (3) for connecting with the plastic tarpaulin. Each guide rail slider (3) is connected to a traction rope (4). Several traction ropes (4) drive the guide rail sliders (3) to move and push the small sliders in the process so that the small sliders can retract the plastic tarpaulin and accumulate on the shore.

3. The plastic sheet storage and take-up device according to claim 1, characterized in that: The second traction rope (5) and the third traction rope (6) are combined into a single bundle at the long side of the salt pool (1) and stored in the take-up roller (8) to ensure that the second traction rope (5) and the third traction rope (6) maintain the same traction speed.

4. The plastic sheeting take-up and take-down device according to claim 1, characterized in that: The traction rope (4) is provided in 5 sets. Each pair of guide rail sliders (3) connected to the traction rope (4) is a set. Each set of traction rope (4) extends along the plastic cover retracting direction toward the short side of the salt pool (1) and is stored on the take-up roller (8) after two turns.

5. A plastic sheet storage and take-up device according to claim 1, characterized in that: At each corner of the path of the first (4), second (5), third (6) and fourth (7) traction ropes, a guide ring is provided, and / or a pulley is provided to prevent the rope from getting tangled.

6. A plastic sheet storage and take-up device according to claim 1, characterized in that: The take-up roller (8) includes a first winding roller (801) and a second winding roller (802). The first winding roller (801) has two reels for winding the fourth traction rope (7), and the second winding roller (802) has six reels for winding the second traction rope (5), the third traction rope (6), and the first traction rope (4).

7. A plastic sheet storage and take-up device according to claim 6, characterized in that: The diameter of the reel on the first roller (801) is the same as the diameter of the reel on the second roller (802) corresponding to the second traction rope (5) and the third traction rope (6). The diameter of the five reels used to connect the five sets of first traction ropes (4) is directly proportional to the length of the corresponding first traction rope (4).

8. A plastic sheet storage and take-up device according to claim 1, characterized in that: The take-up roller (8) has a first winding roller (801) and a second winding roller (802) arranged coaxially, and the first winding roller (801) and the second winding roller (802) are connected by a clutch. The take-up roller (8) is placed parallel to the long side of the salt pool (1), and the traction rope is separated by a guide ring near the winding shaft.

9. A plastic sheet storage and take-up device according to claim 1, characterized in that: The take-up roller (8) is placed parallel to the short side of the salt pool (1) to reduce the risk of the motor being corroded by the salt pool (1).

10. A plastic sheet storage and take-up device according to claim 1, characterized in that: After the plastic sheeting is retracted, the roller 1 (801) rotates independently to reduce the tension of the two traction ropes 4 (7) so that the two traction ropes 4 (7) can be pulled to the two banks of the salt pond (1) respectively.

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