Take-up and pay-off mechanism for plastic straw mat take-up and pay-off machine
By introducing automatic control of output shaft, spring and helical claw clutch into the plastic tarp collecting and storage machine, combined with the limit structure, the problem of manual operation of traditional tarp collecting and storage machines is solved, and the problem of rope or plastic tarp discharge is consumed, which realizes automatic tarp collecting and tight winding, improving the stability and efficiency of the equipment.
Patent Information
- Application Number
- CN202422056615.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-23
AI Technical Summary
Traditional plastic tarpaulin collecting and laying machines require manual operation of the clutch, which leads to high human resources consumption and is prone to release of excess ropes or plastic tarpaulin due to inertia or wind, causing equipment failure.
The design of the output shaft, the first spring and the helical claw clutch is adopted, combined with the motor drive and limiting spring, to achieve automatic control of the closing and separation of the winding roller. Through the helical surface action of the helical claw clutch and the thrust of the spring, the winding is ensured tightly; at the same time, the fixed box and the solenoid limit structure are used to further tighten the plastic tarpaulin.
Automatically retract and release of plastic tarpaulins is achieved, reducing manual operations, avoiding the release of unnecessary ropes or plastic tarpaulins, and improving the operating stability and efficiency of the equipment.
Smart Images
Figure CN223150004U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic tarpaulin retracting and unreeling, in particular to a retracting and unreeling mechanism for a plastic tarpaulin retractor and unreeler. Background Technique
[0002] With the development of the salt industry, the plastic tarpaulin technology has been continuously improved. Since the production and quality of raw salt will decline due to rain or other reasons during salt production in salt fields, it is necessary to cover with objects such as plastic tarpaulin films and plastic tarpaulin cloths. When the traditional retractor and unreeler needs to unreel the plastic tarpaulin cloth, it is necessary to manually close the clutch of the rope retractor and unreeler so that the reduction gear shaft of the rope retractor and unreeler is connected to the rope winding drum shaft to drive the rope winding drum to rotate. At the same time, it is necessary to manually separate the clutch of the cloth winding retractor and unreeler so that the cloth winding drum can rotate freely by the traction of the rope. When it is necessary to retract the plastic tarpaulin cloth, the above steps need to be operated in reverse, that is, manually separate the clutch of the rope retractor and unreeler and close the clutch of the cloth winding retractor and unreeler, so that the rope winding drum can rotate freely following the cloth winding drum. This operation requires manual operation of the clutch, which consumes a lot of human resources. At the same time, when the clutch is separated, the drum rotates freely, and often due to factors such as inertia or wind force, some redundant traction ropes or plastic tarpaulin cloths will be released. These traction ropes and plastic tarpaulin cloths are prone to cause failures during the operation of the equipment. Content of the Utility Model
[0003] Aiming at the deficiencies of the prior art, the utility model provides a retracting and unreeling mechanism for a plastic tarpaulin retractor and unreeler, which solves the problems put forward in the above background technique.
[0004] To achieve the above object, the utility model is realized through the following technical solutions: A retracting and unreeling mechanism for a plastic tarpaulin retractor and unreeler, including a bottom plate, the top of the bottom plate is fixedly connected with a reduction gear, the top of the bottom plate and on one side of the reduction gear is fixedly connected with two side plates, a winding roller is rotatably connected between the two side plates, one end of the winding roller extends to one side of one side plate, an output shaft is installed inside the reduction gear, the output shaft is connected with the winding roller through an inclined tooth claw type clutch, a driving end is movably sleeved on the outer side of the output shaft, a driven end is installed at one end of the winding roller, the driving end is matched with the driven end, a first spring is sleeved on the outer side of the output shaft, one end of the first spring is connected with one end of the driving end, the other end of the first spring is connected with one side of the reduction gear, the top of the reduction gear is fixedly connected with a motor, and the output end of the motor is connected with the input end of the reduction gear.
[0005] Preferably, fixing plates are placed on both sides of the side plates, a fixing box is fixedly connected between the four fixing plates, a limiting spring is fixedly connected to the top of the inner cavity of the fixing box, a connecting plate is fixedly connected to the bottom end of the limiting spring, a pressing block is fixedly connected to the bottom of the connecting plate, and the bottom end of the pressing block extends below the fixing box and is installed with a limiting roller.
[0006] Preferably, first electromagnets are fixedly connected to both sides of the bottom of the fixed box and located on both sides of the pressing block, and second electromagnets are fixedly connected to both sides of the bottom inside the fixed box and located on both sides of the pressing block.
[0007] Preferably, rectangular grooves are formed inside the fixing plates, threaded grooves are formed on one side of each fixing plate, screws are threadedly connected inside the threaded grooves, one ends of the screws extend into the rectangular grooves and are connected to rectangular blocks through shaft sleeves, slots are formed on both sides of the side plates and at one ends of the rectangular blocks, and one ends of the rectangular blocks are inserted into the slots.
[0008] Preferably, the other ends of the screws extend to the outside of the fixing plates.
[0009] Preferably, one ends of the rectangular blocks are matched with the inside of the rectangular grooves.
[0010] The utility model provides a winding and unwinding mechanism for a plastic covering machine, which has the following beneficial effects:
[0011] 1. For the winding and unwinding mechanism of the plastic covering machine, by arranging an output shaft, a first spring and a helical claw clutch, when the output end of the motor drives the input end of the speed reducer to rotate, and the output shaft of the speed reducer drives the driving end to rotate forward, the first spring can push the driving end and the driven end to be connected and closed, so that the driving end can drive the driven end to drive the winding roller to rotate. When the other set of winding and unwinding mechanism pulls the pulling rope or the plastic covering cloth, when the winding roller rotates reversely, the helical surfaces of the helical claw clutch interact to automatically separate the driven end from the driving end. At the same time, under the action of the first spring, although the helical claw clutch is separated, the thrust of the first spring makes the rotation of the winding roller have a certain resistance. The existence of this resistance makes the other set of winding and unwinding mechanism wind the pulling rope or the plastic covering cloth more tightly, and no extra pulling rope or plastic covering cloth will be released, making the mechanism easy to use.
[0012] 2. For the winding and unwinding mechanism of the plastic covering machine, by arranging a fixed box, a connecting plate and a pressing block, when winding the plastic covering cloth, the limiting spring is used to push the connecting plate to move, so that the connecting plate pushes the pressing block to move to limit the plastic covering cloth, making the plastic covering cloth wind more tightly. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic diagram of the internal structure of the utility model;
[0014] Figure 2 is a schematic diagram of a partial internal structure of the side view of the side plate of the utility model;
[0015] Figure 3 is a schematic diagram of the structure of the driven end of the utility model;
[0016] Figure 4 Schematic diagram of the connection structure between the output shaft and the active end of the present utility model.
[0017] In the figure: 1, base plate; 2, side plate; 3, winding roller; 4, driven end; 5, speed reducer; 6, output shaft; 7, first spring; 8, active end; 9, motor; 10, fixing plate; 11, fixing box; 12, limiting spring; 13, connecting plate; 14, pressing block; 15, first electromagnet; 16, second electromagnet; 17, rectangular groove; 18, threaded groove; 19, screw; 20, rectangular block; 21, slot; 22, helical claw clutch; 23, limiting roller. Specific implementation manner
[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.
[0019] Embodiment 1
[0020] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: a winding and unwinding mechanism for a plastic covering machine, including a base plate 1, a speed reducer 5 fixedly connected to the top of the base plate 1, two side plates 2 fixedly connected to the top of the base plate 1 and on one side of the speed reducer 5, a winding roller 3 rotatably connected between the two side plates 2, one end of the winding roller 3 extending to one side of one side plate 2, an output shaft 6 installed inside the speed reducer 5, the output shaft 6 and the winding roller 3 are connected by a helical claw clutch 22, an active end 8 is movably sleeved on the outer side of the output shaft 6, a driven end 4 is installed at one end of the winding roller 3, the active end 8 cooperates with the driven end 4, a first spring 7 is sleeved on the outer side of the output shaft 6, one end of the first spring 7 is connected to one end of the active end 8, the other end of the first spring 7 is connected to one side of the speed reducer 5, a motor 9 is fixedly connected to the top of the speed reducer 5, the output end of the motor 9 is connected to the input end of the speed reducer 5, and the speed reducer 5 can reduce the rotational kinetic energy of the motor 9 and increase the torque and then transmit it to the winding roller 3 through the helical claw clutch 22, so that the winding roller 3 can rotate in the same direction.
[0021] Fixing plates 10 are placed on both sides of the side plate 2, a fixing box 11 is fixedly connected between the four fixing plates 10, a limiting spring 12 is fixedly connected to the top of the inner cavity of the fixing box 11, a connecting plate 13 is fixedly connected to the bottom end of the limiting spring 12, a pressing block 14 is fixedly connected to the bottom of the connecting plate 13, and the bottom end of the pressing block 14 extends below the fixing box 11 and a limiting roller 23 is installed. Through the pressing block 14, when the winding roller 3 winds the plastic covering, the plastic covering is pressed, and the winding of the plastic covering is relatively tight.
[0022] On both sides of the bottom of the fixed box 11 and located on both sides of the pressing block 14, first electromagnets 15 are fixedly connected. On the bottom of the inner cavity of the fixed box 11 and located on both sides of the pressing block 14, second electromagnets 16 are fixedly connected. When it is necessary to remove the fixed box 11, the first electromagnets 15 and the second electromagnets 16 are activated, so that a mutually repulsive magnetic field is generated between the first electromagnets 15 and the second electromagnets 16, causing the connecting plate 13 to drive the pressing block 14 and the limiting roller 23 to move upward.
[0023] Rectangular grooves 17 are respectively opened inside the fixing plates 10. Threaded grooves 18 are respectively opened on one side of the fixing plates 10. Screws 19 are respectively threadedly connected inside the threaded grooves 18. One ends of the screws 19 respectively extend into the rectangular grooves 17 and are connected with rectangular blocks 20 through bushings. Slots 21 are respectively opened on both sides of the side plates 2 and at one ends of the rectangular blocks 20. One ends of the rectangular blocks 20 are respectively inserted into the slots 21. When it is necessary to remove the fixed box 11, the operator rotates the screws 19, causing the screws 19 to drive the rectangular blocks 20 to move into the rectangular grooves 17, so that one ends of the rectangular blocks 20 move out of the slots 21. Then, the fixing plates 10 can be removed from the sides of the side plates 2, and the fixed box 11 can be removed. When it is necessary to install the fixed box 11, the fixing plates 10 are placed on the sides of the side plates 2. Then, the operator rotates the screws 19 in the reverse direction, causing the screws 19 to push one ends of the rectangular blocks 20 into the slots 21 through the bushings, fixing the fixing plates 10 on the sides of the side plates 2, installing the fixed box 11 above the winding roller 3, and then turning off the first electromagnets 15 and the second electromagnets 16, so that the repulsive magnetic field between the first electromagnets 15 and the second electromagnets 16 disappears, causing the limiting springs 12 to push the connecting plate 13, the pressing block 14, and the limiting roller 23 to move downward.
[0024] The other ends of the screws 19 respectively extend to the outside of the fixing plates 10, facilitating the operator to rotate the screws 19.
[0025] Embodiment 2
[0026] Please refer to Figures 1 to 2 , the present utility model provides a technical solution: One ends of the rectangular blocks 20 are respectively matched with the inside of the rectangular grooves 17, and can guide and limit the movement of the rectangular blocks 20 through the rectangular grooves 17.
[0027] In summary, for the winding and unwinding mechanism of the plastic sheet covering machine, during use, when the output end of the motor 9 drives the input end of the speed reducer 5 to rotate, such that the output shaft 6 of the speed reducer 5 drives the driving end 8 to rotate forward, the first spring 7 can push the driving end 8 to be connected and closed with the driven end 4, so that the driving end 8 can drive the driven end 4 to drive the winding roller 3 to rotate. When the other set of winding and unwinding mechanism pulls the pulling rope or the plastic sheet covering, when the winding roller 3 rotates in the reverse direction, the helical tooth surfaces of the helical tooth claw clutch 22 interact to automatically separate the driven end 4 from the driving end 8. At the same time, under the action of the first spring 7, although the helical tooth claw clutch 22 is separated, the thrust of the first spring 7 causes a certain resistance to the rotation of the winding roller 3. The existence of this resistance enables the other set of winding and unwinding mechanism to wind the pulling rope or the plastic sheet covering more tightly, and no excess pulling rope or plastic sheet covering will be released. When winding the plastic sheet covering, the limiting spring 12 is used to push the connecting plate 13 to move, such that the connecting plate 13 pushes the pressing block 14 to move, flattening the plastic sheet covering and making the plastic sheet covering wind more tightly.
[0028] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.
Claims
1. A retracting and deploying mechanism for a plastic covering retractor, comprising a bottom plate (1), characterized in that: A speed reducer (5) is fixedly connected to the top of the bottom plate (1). Two side plates (2) are fixedly connected to the top of the bottom plate (1) and on one side of the speed reducer (5). A winding roller (3) is rotatably connected between the two side plates (2). One end of the winding roller (3) extends to one side of one side plate (2). An output shaft (6) is installed inside the speed reducer (5). The output shaft (6) is connected to the winding roller (3) through a helical claw clutch (22). A driving end (8) is movably sleeved on the outer side of the output shaft (6). One end of the winding roller (3) is provided with a driven end (4). The driving end (8) cooperates with the driven end (4). A first spring (7) is sleeved on the outer side of the output shaft (6). One end of the first spring (7) is connected to one end of the driving end (8). The other end of the first spring (7) is connected to one side of the speed reducer (5). A motor (9) is fixedly connected to the top of the speed reducer (5). The output end of the motor (9) is connected to the input end of the speed reducer (5).
2. The retracting and deploying mechanism for a plastic covering retractor according to claim 1, characterized in that: Fixing plates (10) are placed on both sides of the side plates (2). A fixing box (11) is fixedly connected between the four fixing plates (10). A limiting spring (12) is fixedly connected to the top of the inner cavity of the fixing box (11). The bottom end of the limiting spring (12) is fixedly connected to a connecting plate (13). A pressing block (14) is fixedly connected to the bottom of the connecting plate (13). The bottom end of the pressing block (14) extends below the fixing box (11) and is provided with a limiting roller (23).
3. The rewinding and unreeling mechanism for a plastic covering rewinder according to claim 2, characterized in that: First electromagnets (15) are fixedly connected to both sides of the bottom of the fixing box (11) and on both sides of the pressing block (14). Second electromagnets (16) are fixedly connected to both sides of the bottom of the inner cavity of the fixing box (11) and on both sides of the pressing block (14).
4. The rewinding and unreeling mechanism for a plastic covering rewinder according to claim 3, characterized in that: Rectangular grooves (17) are respectively formed inside the fixing plates (10). Thread grooves (18) are respectively formed on one side of the fixing plates (10). Screws (19) are respectively threadedly connected inside the thread grooves (18). One ends of the screws (19) respectively extend into the rectangular grooves (17) and are connected with rectangular blocks (20) through bushings. Slots (21) are respectively formed on both sides of the side plates (2) and at one ends of the rectangular blocks (20). One ends of the rectangular blocks (20) are respectively inserted into the slots (21).
5. The retracting and deploying mechanism for a plastic sheet covering machine according to claim 4, characterized in that: The other ends of the screws (19) respectively extend to the outside of the fixing plates (10).
6. The retracting and deploying mechanism for a plastic covering retractor according to claim 4, characterized in that: One ends of the rectangular blocks (20) respectively cooperate with the inside of the rectangular grooves (17).