Web conveying device and tensioning device

Abstract

The utility model discloses a kind of roll material conveying devices and tensioning devices, including moving frame, lifting mechanism is arranged on moving frame, the distal end of lifting mechanism is connected with rotating mechanism, the distal end of rotating mechanism is connected with tensioning mechanism;Tensioning mechanism includes driving part, positive and negative screw rod coaxially arranged with driving part, sleeve is set on the outer periphery of positive and negative screw rod, two nuts and at least two sliders embedded on sleeve are screwed on positive and negative screw rod;The distal end of rotating mechanism is fixedly connected with sleeve;Nut and slider abut, and the outer wall of slider is sawtooth shape;Nut drives slider to move along the radial direction of sleeve.The utility model has the advantages that: by tensioning mechanism and roll material product inner wall close, then combine lifting mechanism and rotating mechanism to drive roll material product to go up and rotate, roll material product is converted from vertical state into horizontal state, convenient for the transport of roll material product Place, reduce manual handling, improve transport safety and work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical manufacturing technology, and in particular relates to a coil conveying device and a tensioning device. Background Technology

[0002] In the sheet metal processing industry, coiled materials, as basic raw materials, are typically stored and transported vertically. However, in actual production processes, coiled materials need to be converted to a horizontal state to meet the requirements of processing equipment. Traditional manual conversion methods have significant drawbacks: due to the large weight (usually several tons) and volume of the coiled materials, at least two operators are required to work together, which is not only labor-intensive but also poses safety hazards, and the conversion efficiency is difficult to meet the cycle time requirements of modern production lines.

[0003] To address the aforementioned issues, existing technologies, such as the patent CN209815281U, propose an "Auxiliary Upper Die Device," which uses a tensioning shaft to engage with the center hole of the coil material and, in conjunction with a rotating mechanism, achieves the transformation of the coil material from a vertical to a horizontal state. However, this solution has the following technical limitations: 1) The friction between the smooth surface of the tensioning shaft and the inner wall of the coil material is difficult to control precisely, which can easily lead to over-tensioning causing deformation of the coil material or under-tensioning causing safety accidents such as detachment; 2) The rigid contact method lacks a buffer mechanism, which may cause mechanical damage to the inner wall of the coil material during rotation; 3) It has poor adaptability to coil materials with different inner diameter specifications, requiring frequent replacement of the matching tensioning shaft.

[0004] To solve the above problems, designing a roll material conveying device is an important technical problem that those skilled in the art need to solve. Utility Model Content

[0005] The purpose of this invention is to solve the above-mentioned problems existing in the prior art and to provide a roll material conveying device and a tensioning device.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A roll material conveying device includes a movable frame with a lifting mechanism on it. A rotating mechanism is connected to the distal end of the lifting mechanism, and a tensioning mechanism is connected to the distal end of the rotating mechanism. The tensioning mechanism includes a driving component, a positive and negative lead screw coaxially arranged with the driving component, a sleeve sleeved around the outer periphery of the positive and negative lead screw, two nuts screwed onto the positive and negative lead screw, and at least two sliders embedded in the sleeve. The distal end of the rotating mechanism is fixedly connected to the sleeve. The nuts abut against the sliders, and the outer wall of the sliders is serrated. The nuts drive the sliders to move radially along the sleeve. In the initial state, the driving component drives the two nuts to move in opposite directions and moves the sliders inward until the outer wall of the sliders is flush with the outer surface of the sleeve, and the sleeve is in a vertical state. In the working state, the two nuts move towards each other and move the sliders outward until the outer wall of the sliders protrudes from the sleeve. Then, the lifting mechanism and the rotating mechanism are activated to drive the roll material to move upward and rotate to a horizontal state, facilitating the conveying of the roll material.

[0008] Preferably, the lifting mechanism includes a motor mounted on the movable frame, a vertical lead screw mounted on the output end of the motor, a movable block that moves along the vertical lead screw, and a support arm fixedly connected to the movable block; the support arm is inclined relative to the movable block, and the distal end of the support arm is higher than the movable block.

[0009] Preferably, the rotating mechanism includes a fixed plate fixed to the distal end of the support arm, the fixed plate being connected to the rotating plate via a bearing, and a connecting shaft fixed to the outer side of the rotating plate; a positioning pin is inserted into the fixed plate; in use, the positioning pin passes through the bearing and is located within a notch in the rotating plate to fix the position of the rotating plate.

[0010] Preferably, the sleeve has a hollow structure, and at least two openings are formed on the outer wall of the sleeve to accommodate the slider.

[0011] Preferably, the sleeve is provided with sleeve seats at both ends, and the positive and negative lead screws pass through one of the sleeve seats and are inserted into the other sleeve seat; the nut is located inside the sleeve, and in the initial state the nut is located at both ends of the slider; in the use state the nut is at least partially located inside the slider.

[0012] Preferably, the slider has inclined surfaces at both ends that mate with the nut; at least one spring hook is welded to the inner wall of the slider, and the two ends of the spring are disposed on the two spring hooks to connect two adjacent or opposite sliders, so that the sliders move simultaneously toward the axis or outer periphery of the sleeve; the outer wall of the slider is serrated.

[0013] Preferably, the two ends of the spring hook protrude from both sides of the slider and form hanging holes, and the two ends of the spring are hooked into the hanging holes of the two spring hooks.

[0014] Preferably, the nut is frustum-shaped, and the circumferential surface of the nut abuts against the inclined surface to achieve tensioning or release of the coiled material.

[0015] Preferably, a fan-shaped structure is also formed on the frustum surface of the nut, and the sidewalls of two adjacent fan-shaped structures form a channel with the frustum surface of the nut to accommodate the end of the slider.

[0016] A tensioning device includes a tensioning mechanism, which includes a driving member, a positive and negative lead screw coaxially arranged with the driving member, a sleeve sleeved around the outer periphery of the positive and negative lead screw, two nuts screwed onto the positive and negative lead screw, and at least two sliders embedded in the sleeve. The driving member is located at the end of the positive and negative lead screw and drives the positive and negative lead screw to rotate. The nuts abut against the sliders. The nuts drive the sliders to move radially along the sleeve.

[0017] The advantages of this utility model's technical solution are mainly reflected in:

[0018] The slider in the tensioning mechanism is in close contact with the inner wall of the coil product. Combined with the lifting and rotating mechanisms, the coil product is moved upward and rotated, changing it from a vertical to a horizontal state. This facilitates the transportation and placement of the coil product, reduces manual handling, and improves transportation safety and work efficiency. At the same time, the outer wall of the slider is serrated to increase the friction with the inner wall of the coil, thereby improving the tensioning effect.

[0019] The outer diameter of the tensioning mechanism can be adjusted by a slider to meet the movement and handling requirements of coiled products with different inner diameters; the slider is made of elastic material and uses a soft contact method to reduce damage to the inner wall of the coil.

[0020] By locking or unlocking the rotating mechanism through the insertion and removal of positioning pins, the connecting shaft can be fixed or rotated, enabling the switching of the placement state of the coiled product, reducing labor and improving safety. Attached Figure Description

[0021] Figure 1 : Initial state structural diagram of the preferred embodiment of this utility model;

[0022] Figure 2 : A structural diagram of the rising state of a preferred embodiment of this utility model;

[0023] Figure 3 : A structural diagram of the preferred embodiment of this utility model in use;

[0024] Figure 4 : A structural diagram of the tensioning mechanism of a preferred embodiment of this utility model;

[0025] Figure 5 : A structural diagram of the partially concealed tensioning mechanism of a preferred embodiment of this utility model;

[0026] Figure 6 : A structural diagram of the nut in a preferred embodiment of this utility model. Detailed Implementation

[0027] The purpose, advantages, and features of this utility model will be illustrated and explained through the following non-limiting description of preferred embodiments. These embodiments are merely typical examples of applying the technical solutions of this utility model, and all technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by this utility model.

[0028] In the description of the solution, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience and simplification of description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Also, in the description of the solution, with the operator as a reference, the direction closer to the operator is the proximal end, and the direction farther from the operator is the distal end.

[0029] This utility model discloses a roll material conveying device, including as follows: Figure 1 The movable frame 10 shown can be referenced from known mobile trolley structures, and will not be described in detail here. The movable frame 10 enables rapid movement of rolled products, reducing labor costs.

[0030] like Figures 1 to 3 As shown, the movable frame 10 is equipped with a lifting mechanism 1. Specifically, the lifting mechanism 1 includes a motor 11 mounted on the movable frame 10, a vertical lead screw mounted on the output end of the motor 11, a moving block that moves along the vertical lead screw, and a support arm 12 fixedly connected to the moving block. The support arm 12 is inclined relative to the moving block, and the distal end of the support arm 12 is higher than the moving block; furthermore, in this invention, it is preferable that the support arm 12 is set at a 45° angle to the movable frame 10. Starting the motor 11 drives the moving block to move up and down along the direction of the vertical lead screw, thereby driving the support arm 12 to rise and fall, thus automating the lifting operation of the components connected to the support arm 12 and the coiled product.

[0031] Furthermore, a rotating mechanism 2 is connected to the distal end of the lifting mechanism 1, that is, the rotating mechanism 2 is connected to the distal end of the support arm 12. The rotating mechanism 2 includes a fixing plate 21 fixed to the distal end of the support arm 12. The fixing plate 21 is connected to a rotating plate 23 via a bearing 22. A connecting shaft 24 is fixed to the outer side of the rotating plate 23. A positioning pin is inserted into the fixing plate 21; in use, the positioning pin passes through the bearing 22 and is located in a notch in the rotating plate 23 to fix the position of the rotating plate 23. By inserting or removing the positioning pin, the rotating plate 23 can be locked or unlocked to fix or rotate the connecting shaft 24 to achieve arbitrary angle changes.

[0032] The distal end of the rotating mechanism 2 is connected to a tensioning mechanism 3, that is, the distal end of the connecting shaft 24 is connected to the tensioning mechanism. Further, the tensioning mechanism 3 includes, for example... Figures 1 to 3 The drive component 31 shown includes a positive and negative lead screw 32 coaxially arranged with the drive component 31, a sleeve 33 sleeved on the outer periphery of the positive and negative lead screw 32, two nuts 34 screwed onto the positive and negative lead screw 32, and at least two sliders 35 embedded in the sleeve 33.

[0033] The distal end of the connecting shaft 24 in the rotating mechanism 2 is fixedly connected to the sleeve 33, so as to drive the sleeve 33 and the entire tensioning mechanism 3 to rotate synchronously. Furthermore, as... Figure 4 As shown, the sleeve 33 has a hollow structure, and at least two openings are formed on the outer wall of the sleeve 33 to accommodate the slider 35, which moves within the range defined by the openings. Furthermore, sleeve seats 331 are provided at both ends of the sleeve 33, and the positive and negative lead screws 32 pass through one of the sleeve seats 331 and are inserted into the other sleeve seat 331. The sleeve seats 331 ensure the coaxiality of the positive and negative lead screws 32 and the sleeve seats 331, while also providing support for the positive and negative lead screws 32, enhancing the reliability of their connection with the sleeve 33 and the stability of both during use.

[0034] Combination Figure 1 and Figure 5 As shown, the nut 34 abuts against the slider 35, and the slider 35 has inclined surfaces 350 at both ends that mate with the nut 34, so that the nut 34 drives the slider 35 to move radially along the sleeve 33. Furthermore, the nut 34 is located inside the sleeve 33, and initially, the nut 34 is located at both ends of the slider 35; in use, the nut 34 is at least partially located inside the slider 35.

[0035] Specifically, one feasible embodiment is that the nut 34 is frustum-shaped, that is, the nut 34 is larger at the top and smaller at the bottom, and the circumferential surface of the nut 34 abuts against the inclined surface 350. When the driving member 31 drives the positive lead screw 32 to rotate, the nut 34 will move relative to or towards each other, thereby driving the slider to move inward or outward, changing the outer diameter of the tensioning mechanism 3, and realizing the tensioning or unwinding of the coiled product.

[0036] like Figure 6 The illustration shows another embodiment of the present invention that enables the nut 34 to drive the slider 35 to move. This embodiment is a further optimization based on the above embodiment. A fan-shaped structure 341 is also formed on the frustum surface of the nut 34. The sidewalls of two adjacent fan-shaped structures 341 and the frustum surface of the nut 34 form a channel to accommodate the end of the slider 35. This channel is used to define the position of the slider 35, ensuring that the slider 35 does not wobble during operation and guaranteeing the tensioning effect.

[0037] like Figure 5 As shown, at least one spring hook 351 is welded to the inner wall of the slider 35. The two ends of the spring are disposed on two spring hooks 351 to connect two adjacent or opposite sliders 35, allowing the sliders 35 to move simultaneously toward the axis or outer periphery of the sleeve 33. Furthermore, the two ends of the spring hooks 351 protrude from both sides of the slider 35 and form hanging holes, with the two ends of the spring hooks hooked into the hanging holes of the two spring hooks 351. In addition, this invention preferably designs the outer wall of the slider 35 to be serrated to enhance its friction with the inner wall of the coiled product. Furthermore, the slider 35 is preferably made of a known material with certain elastic properties, such as silicone or rubber; no specific limitation is made to the material here.

[0038] Furthermore, to further enhance the movement and retraction performance of the sliders 35, each slider 35 has at least two spring hooks 351 distributed along its setting direction. In addition, this invention has at least two sliders 35, and each slider 35 corresponds to an opening on the sleeve 33. When the number of sliders 35 is even, such as two, four, or six, the springs are connected to two opposing spring hooks 341 and located outside the positive and negative lead screws 32. To avoid interference between the springs, it is preferable to stagger the heights of the spring hooks 341 on adjacent sliders 35. When the number of sliders 35 is odd, such as three, five, or seven, the springs are connected to two adjacent sliders 35, and it is preferable to place the spring hooks 341 at the same height.

[0039] In the initial state, the roll conveying device, such as Figure 1 The driving component 31, as shown, drives the positive and negative lead screws 32 to rotate clockwise, causing the two nuts 34 to move in opposite directions until the bottom of the nuts 34 abuts against the slider 35. Simultaneously, the slider 35 moves inward until its outer wall is flush with the outer surface of the sleeve 33. At this point, the slider 35 remains within the opening of the sleeve 33, and the sleeve 33 is in a vertical position. The usage state is as follows... Figure 3 As shown, the driving component 31 drives the positive and negative lead screws 32 to rotate counterclockwise, causing the two nuts 34 to move towards each other until the sidewalls of the nuts 34 abut against the slider 35. Simultaneously, the slider 35 moves outward until its outer wall protrudes beyond the sleeve 33, increasing the outer diameter of the sleeve 33 and ensuring the outer wall of the slider 35 is tightly against the inner wall of the coiled product. Afterward, the lifting mechanism 1 and the rotating mechanism 2 are activated to drive the coiled product upward and rotate to a horizontal position, facilitating the conveying of the coiled product.

[0040] This invention uses the tensioning mechanism 3 to tightly adhere to the inner wall of the coil product, and then combines the lifting mechanism 1 and the rotating mechanism 2 to drive the coil product to move upward and rotate, changing the coil product from a vertical state to a horizontal state, which facilitates the transportation and placement of the coil product, reduces manual handling, and improves transportation safety and work efficiency.

[0041] This utility model also discloses a tensioning device, including as follows: Figure 4 and Figure 5 The tensioning mechanism 3 shown includes a drive member 31, a forward and reverse lead screw 32 coaxially arranged with the drive member 31, a sleeve 33 sleeved around the outer periphery of the forward and reverse lead screw 32, two nuts 34 screwed onto the forward and reverse lead screw 32, and at least two sliders 35 embedded in the sleeve 33. The drive member 31 is located at the end of the forward and reverse lead screw 32 and drives the forward and reverse lead screw 32 to rotate. The nuts 34 are always in contact with the sliders 35. After the drive member 31 is activated, the forward and reverse lead screw 32 rotates, thereby driving the two nuts 34 to move towards or away from each other; the movement of the nuts 34 in turn drives the sliders 35 to move radially along the sleeve 33, adjusting the outer diameter of the tensioning mechanism 3. When the slider 35 moves outward, its outer wall protrudes beyond the outer surface of the sleeve 33, thereby increasing the outer diameter of the tensioning mechanism 3 and bringing it into close contact with the inner wall of the coiled product for handling or moving. When the slider 35 moves inward, its outer wall becomes flush with the outer surface of the sleeve 33, allowing the coiled product to be detached for handling the next coil. Furthermore, when the slider 35 moves inward, it can also be used to handle and move coiled products with smaller inner diameters; that is, the tensioning mechanism can meet the handling and moving operations of coiled products with different internal tension requirements.

[0042] This utility model has many other embodiments. All technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of this utility model.

Claims

1. A coil conveying device, characterized in that: The device includes a movable frame (10), on which a lifting mechanism (1) is provided. A rotating mechanism (2) is connected to the far end of the lifting mechanism (1), and a tensioning mechanism (3) is connected to the far end of the rotating mechanism (2). The tensioning mechanism (3) includes a driving member (31), a positive and negative lead screw (32) coaxially arranged with the driving member (31), a sleeve (33) sleeved on the outer periphery of the positive and negative lead screw (32), two nuts (34) screwed onto the positive and negative lead screw (32), and at least two sliders (35) embedded in the sleeve (33). The far end of the rotating mechanism (2) is fixedly connected to the sleeve (33). The nuts (34) abut against the sliders (35), and the sliders (35) The outer wall of the sleeve (33) is serrated; the nut (34) drives the slider (35) to move radially along the sleeve (33); in the initial state, the drive member (31) drives the two nuts (34) to move in opposite directions and drives the slider (35) to move inward until the outer wall of the slider (35) is flush with the outer surface of the sleeve (33) and the sleeve (33) is in a vertical state; in the use state, the two nuts (34) move towards each other and drive the slider (35) to move outward until the outer wall of the slider (35) protrudes from the sleeve (33); then the lifting mechanism (1) and the rotating mechanism (2) are started to drive the coil product to move up and rotate to a horizontal state, which facilitates the conveying of the coil product.

2. The roll conveying device according to claim 1, characterized in that: The lifting mechanism (1) includes a motor (11) mounted on the movable frame (10), a vertical lead screw mounted on the output end of the motor (11), a movable block that moves along the vertical lead screw, and a support arm (12) fixedly connected to the movable block; the support arm (12) is inclined to the movable block, and the far end of the support arm (12) is higher than the movable block.

3. The roll conveying device according to claim 2, characterized in that: The rotating mechanism (2) includes a fixed plate (21) fixed to the far end of the support arm (12). The fixed plate (21) is connected to the rotating plate (23) via a bearing (22). A connecting shaft (24) is fixed to the outside of the rotating plate (23). A positioning pin is inserted into the fixed plate (21). In use, the positioning pin passes through the bearing (22) and is located in the notch of the rotating plate (23) to fix the position of the rotating plate (23).

4. The roll conveying device according to claim 3, characterized in that: The sleeve (33) has a hollow structure, and at least two openings are formed on the outer wall of the sleeve (33) to accommodate the slider (35).

5. The roll conveying device according to claim 4, characterized in that: The sleeve (33) is provided with sleeve seats (331) at both ends. The positive and negative lead screws (32) pass through one of the sleeve seats (331) and are inserted into the other sleeve seat (331). The nut (34) is located inside the sleeve (33), and in the initial state, the nut (34) is located at both ends of the slider (35). In the use state, the nut (34) is at least partially located inside the slider (35).

6. The roll conveying device according to claim 4, characterized in that: The slider (35) has inclined surfaces (350) formed at both ends to cooperate with the nut (34); at least one spring hook (351) is welded to the inner wall of the slider (35), and the two ends of the spring are set on the two spring hooks (351) to connect the two adjacent or opposite sliders (35), so that the sliders (35) can move simultaneously toward the axis or the outer periphery of the sleeve (33).

7. The roll conveying device according to claim 6, characterized in that: The two ends of the spring hook (351) protrude from both sides of the slider (35) and form hanging holes. The two ends of the spring are hooked into the hanging holes of the two spring hooks (351).

8. The roll conveying device according to claim 6, characterized in that: The nut (34) is frustum-shaped, and the circumferential surface of the nut (34) abuts against the inclined surface (350) to achieve tensioning or release of the coiled product.

9. The roll conveying device according to claim 7, characterized in that: A fan-shaped structure (341) is also formed on the frustum surface of the nut (34), and the sidewalls of two adjacent fan-shaped structures (341) form a channel with the frustum surface of the nut (34) to accommodate the end of the slider (35).

10. A tensioning device, characterized in that: The device includes a tensioning mechanism (3), which includes a drive member (31), a positive and negative lead screw (32) coaxially arranged with the drive member (31), a sleeve (33) sleeved on the outer periphery of the positive and negative lead screw (32), two nuts (34) screwed onto the positive and negative lead screw (32), and at least two sliders (35) embedded in the sleeve (33). The drive member (31) is located at the end of the positive and negative lead screw (32) and drives the positive and negative lead screw (32) to rotate. The nuts (34) abut against the sliders (35). The nuts (34) drive the sliders (35) to move radially along the sleeve (33).

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