Roll falling frame

Abstract

The invention relates to the technical field of roll falling frames, and discloses a roll falling frame which comprises a support. The bottom plate is arranged at the bottom of the bracket; the number of the middle plates is two, the two middle plates are oppositely arranged on the support, one sides of the middle plates are hinged to the support, and the middle plates are further located on the upper portion of the bottom plate; wherein the middle plates comprise first fixed plates and first telescopic plates, the first fixed plates are hinged to the first telescopic plates, and the telescopic ends of the first telescopic plates of the two middle plates are adjacent; the two top plates are oppositely arranged on the support, one sides of the top plates are hinged to the support, and the top plates are further located on the upper portion of the middle plate; each top plate comprises a second fixed plate and a second telescopic plate, the second fixed plate is hinged to the second telescopic plate, and the telescopic ends of the second telescopic plates of the two top plates are adjacent; and the bolt is inserted into the bracket, is L-shaped and is used for fixing the middle plate and the top plate. The roll falling frame is high in practicability.

Description

Technical Field

[0001] The invention relates to the technical field of roll-off racks, and in particular to a roll-off rack. Background Art

[0002] With the continuous improvement of industrial automation, the requirements for precision and adaptability of mechanical equipment are becoming higher and higher. Especially in the transportation, winding and storage of materials, flexible, stable and easy-to-adjust mechanical devices must be used to ensure work efficiency and safety for items of different shapes, sizes and weights. In these occasions, unwinding racks are a common auxiliary equipment widely used in packaging, logistics, textiles, paper and other industries.

[0003] Traditional roll unwinding racks usually have a fixed structural design that can support items of a certain weight for rewinding. However, with the continuous upgrading of production lines, a single fixed structure cannot meet the adaptation needs of a variety of items. Especially when dealing with rolls of irregular shapes or different sizes, the limitations of traditional designs become more and more obvious.

[0004] Therefore, it is necessary to provide a roll-off stand to solve the problem of poor practicality of the traditional roll-off stand. Summary of the invention

[0005] In view of this, the present invention proposes a roll-off stand, aiming to solve the problem of poor practicality of the traditional roll-off stand.

[0006] The present invention provides a roll-off stand, comprising:

[0007] Bracket;

[0008] A bottom plate, arranged at the bottom of the bracket, and the rubber strip is placed on the bottom plate;

[0009] Two middle plates are provided, the two middle plates are arranged on the bracket opposite to each other, one side of the middle plate is hinged to the bracket, and the middle plate is also located on the upper part of the bottom plate; wherein the middle plate comprises a first fixed plate and a first telescopic plate, the first fixed plate is hinged to the first telescopic plate, the telescopic ends of the first telescopic plates of the two middle plates are adjacent, and the rubber strip passes through the gap between the two first telescopic plates;

[0010] There are two top plates, the two top plates are arranged on the bracket opposite to each other, one side of the top plate is hinged to the bracket, and the top plate is also located on the upper part of the middle plate; wherein the top plate comprises a second fixed plate and a second telescopic plate, the second fixed plate is hinged to the second telescopic plate, the telescopic ends of the second telescopic plates of the two top plates are adjacent, and the rubber strip passes through the gap between the two second telescopic plates;

[0011] A latch is inserted on the bracket, the latch is L-shaped, and the latch is used to fix the middle plate and the top plate.

[0012] Furthermore, the roll-off stand further comprises:

[0013] Two control modules are provided, one of which is connected to the first fixed plate, and the other is connected to the second fixed plate. The control modules are used to control the extension and retraction of the first and second retractable plates according to the rubber strip parameters.

[0014] Furthermore, the control module includes:

[0015] A collecting unit is configured to collect rubber strip parameters, wherein the rubber strip parameters include rubber strip thickness and rubber strip conveying speed;

[0016] A telescopic control unit, configured to preliminarily determine the extension distance of the first telescopic plate and the second telescopic plate according to the thickness of the rubber strip, so as to control the gap between the two first telescopic plates and the gap between the two second telescopic plates;

[0017] The telescopic adjustment unit is configured to determine whether to adjust the extension distance of the first telescopic plate and the second telescopic plate according to the rubber strip conveying speed when the rubber strip passes through the gap. If the judgment result is that adjustment is required, the extension distance is controlled according to the rubber strip conveying speed.

[0018] Furthermore, when the telescopic control unit is configured to preliminarily determine the extension distances of the first telescopic plate and the second telescopic plate according to the thickness of the rubber strip, the method comprises:

[0019] Setting a first thickness and a second thickness, wherein the first thickness is smaller than the second thickness;

[0020] If the thickness of the rubber strip is less than or equal to the first thickness, determining the extension distance of the first telescopic plate and the second telescopic plate to be a first distance;

[0021] If the thickness of the rubber strip is greater than the first thickness and less than the second thickness, determining the extension distance of the first telescopic plate and the second telescopic plate to be the second distance;

[0022] If the thickness of the rubber strip is greater than or equal to the second thickness, determining the extension distance of the second telescopic plate to be a third distance;

[0023] The first distance is greater than the second distance, and the second distance is greater than the third distance.

[0024] Further, the telescopic adjustment unit is configured to determine whether to adjust the extension distance of the first telescopic plate and the second telescopic plate according to the rubber strip conveying speed when the rubber strip passes through the gap, including:

[0025] Setting a safety threshold of the rubber strip conveying speed, if the rubber strip conveying speed is greater than or equal to the rubber strip conveying speed threshold, it is determined that the extension distances of the first telescopic plate and the second telescopic plate need to be adjusted;

[0026] If the rubber strip conveying speed is less than the rubber strip conveying speed threshold, it is determined that there is no need to adjust the extension distances of the first telescopic plate and the second telescopic plate.

[0027] Furthermore, when the telescopic adjustment unit is configured to control the extension distance according to the rubber strip conveying speed, it includes:

[0028] Calculate the distance between the two first telescopic plates or the distance between the two second telescopic plates, and record it as the gap distance;

[0029] Calculating the difference between the gap distance and the thickness of the rubber strip;

[0030] A speed influence value is calculated according to the difference and the rubber strip conveying speed, and the extension distance is adjusted according to the speed influence value.

[0031] Furthermore, calculating a speed influence value according to the difference and the rubber strip conveying speed, and adjusting the extension distance according to the speed influence value includes:

[0032] The speed impact value is calculated by the following formula:

[0033] Y=(△H / Hj)*(V / V0);

[0034] Among them, Y represents the speed influence value, △H represents the difference, Hj represents the rubber strip thickness, V represents the rubber strip conveying speed, and V0 represents the rubber strip conveying speed safety threshold;

[0035] Setting a first impact value and a second impact value, wherein the first impact value is smaller than the second impact value;

[0036] If the speed influence value is less than the first influence value, adjusting the extension distance by a first adjustment coefficient;

[0037] If the speed influence value is greater than or equal to the first influence value and less than or equal to the second influence value, the extension distance is adjusted by a second adjustment coefficient;

[0038] If the speed influence value is greater than the second influence value, adjusting the extension distance by a third adjustment coefficient;

[0039] The value range of the adjustment coefficient is 1<first adjustment coefficient<second adjustment coefficient<third adjustment coefficient<1.5, and the elongation distance after adjustment is the product of the elongation distance before adjustment and the adjustment coefficient.

[0040] Furthermore, the latch comprises:

[0041] A telescopic rod, inserted into the through hole of the bracket;

[0042] A fixed end, fixed to one end of the telescopic rod, the fixed end also being located on one side of the bracket;

[0043] A ridge bar is fixed to the other end of the telescopic rod, and the ridge bar is L-shaped.

[0044] Furthermore, the cross-sections of the through hole and the prism are polygons of the same shape, the outer diameter of the telescopic rod is smaller than the outer diameter of the prism, and the outer diameter of the prism is smaller than the inner diameter of the through hole.

[0045] Furthermore, the roll-off stand further comprises:

[0046] The universal wheels include a plurality of universal wheels, and the universal wheels are arranged at the bottom of the bracket.

[0047] Compared with the prior art, the beneficial effects of the present invention are as follows: the adjustable telescopic structure of the present invention enables the device to flexibly adjust the gap according to the different sizes of the objects and the working requirements, so that the device can handle coils or objects of different thicknesses without replacing the fixed structure or making complicated adjustments. The adaptability of the equipment is greatly improved. In addition, the design of the telescopic plate enhances the safety of the equipment. By precisely adjusting the gap, it is ensured that the rubber strip is not damaged during the coiling process, and the jamming or blockage problems caused by improper gaps are reduced. Finally, the latch design effectively simplifies the fixing process of the middle plate and the top plate, making it convenient to store the middle plate and the top plate when not in use, making the equipment more convenient and reliable, and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0049] Figure 1 A schematic diagram of the structure of a roll-dropping stand provided in an embodiment of the present invention;

[0050] Figure 2 A schematic diagram of the structure of the upper portion of the middle plate provided by an embodiment of the present invention;

[0051] Figure 3A schematic diagram of the structure of the lower part of the middle plate provided by an embodiment of the present invention;

[0052] Figure 4 A schematic diagram of the structure of a latch provided in an embodiment of the present invention;

[0053] Figure 5 This is a functional block diagram of a control module provided in an embodiment of the present invention.

[0054] In the figure, 100, bracket; 200, bottom plate; 300, middle plate; 310, first fixed plate; 320, first telescopic plate; 400, top plate; 410, second fixed plate; 420, second telescopic plate; 500, latch; 510, telescopic rod; 520, fixed end; 530, edge rod; 600, control module; 610, acquisition unit; 620, telescopic control unit; 630, telescopic adjustment unit; 700, universal wheel. DETAILED DESCRIPTION

[0055] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0056] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0057] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0058] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a communication between the inner sides of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0059] In some embodiments of the present application, see Figure 1-3 As shown, this embodiment provides a roll-dropping stand, comprising:

[0060] Bracket 100;

[0061] A bottom plate 200 is provided at the bottom of the bracket 100, and the rubber strip is placed on the bottom plate;

[0062] There are two middle plates 300, which are arranged on the bracket 100 in a relative manner. One side of the middle plate 300 is hinged to the bracket 100, and the middle plate 300 is also located on the upper part of the bottom plate 200; wherein the middle plate 300 includes a first fixed plate 310 and a first telescopic plate 320, the first fixed plate 310 is hinged to the first telescopic plate 320, the telescopic ends of the first telescopic plates 320 of the two middle plates 300 are adjacent, and the rubber strip passes through the gap between the two first telescopic plates 320;

[0063] There are two top plates 400, which are arranged on the bracket 100 in a relative manner. One side of the top plate 400 is hinged to the bracket 100, and the top plate 400 is also located on the upper part of the middle plate 300; wherein the top plate 400 includes a second fixed plate 410 and a second telescopic plate 420, the second fixed plate 410 is hinged to the second telescopic plate 420, the telescopic ends of the second telescopic plates 420 of the two top plates 400 are adjacent, and the rubber strip passes through the gap between the two second telescopic plates 420;

[0064] The latch 500 is inserted into the bracket 100 and is L-shaped. The latch 500 is used to fix the middle plate 300 and the top plate 400 .

[0065] It is understandable that the adjustable telescopic structure of the present invention enables the device to flexibly adjust the gap according to the different sizes of objects and working requirements, so that the device can handle coils or objects of different thicknesses without replacing the fixed structure or making complex adjustments. The adaptability of the equipment is greatly improved. In addition, the design of the telescopic plate enhances the safety of the equipment. By precisely adjusting the gap, it is ensured that the rubber strip is not damaged during the coiling process, and the jamming or clogging problems caused by improper gaps are reduced. Finally, the design of the latch 500 effectively simplifies the fixing process of the middle plate 300 and the top plate 400, making it convenient to store the middle plate 300 and the top plate 400 when not in use, making the equipment more convenient and reliable.

[0066] In some embodiments of the present application, the roll-off stand further comprises:

[0067] There are two control modules 600, one of which is connected to the first fixed plate 310, and the other is connected to the second fixed plate 410. The control module 600 is used to control the extension and retraction of the first extension plate 320 and the second extension plate 420 according to the rubber strip parameters.

[0068] It is understood that in some embodiments of the present application, the roll-off stand includes two control modules 600, which are connected to the first fixed plate 310 and the second fixed plate 410 respectively. The advantage of this design is that it can achieve accurate control of the parameters of the rubber strip, thereby effectively managing the telescopic action of the first telescopic plate 320 and the second telescopic plate 420. Through the setting of this control module 600, it can be ensured that the roll-off stand is more flexible and efficient during operation. Each control module 600 can independently adjust its corresponding telescopic plate to adapt to different working requirements and material properties. This modular design is also convenient for maintenance and upgrading, because each control module 600 can be replaced or optimized separately without affecting other parts of the entire roll-off stand. In addition, the present invention improves the reliability of the system, because even if one control module 600 fails, the other module can still continue to work, ensuring the continuity of the production process. In general, the design of this dual control module 600 provides the roll-off stand with higher operational flexibility, accuracy and reliability, thereby improving the efficiency and quality of the entire production process.

[0069] See also Figure 5 In some embodiments of the present application, the control module 600 includes:

[0070] A collection unit 610 is configured to collect rubber strip parameters, wherein the rubber strip parameters include rubber strip thickness and rubber strip conveying speed;

[0071] The telescopic control unit 620 is configured to preliminarily determine the extension distance of the first telescopic plate 320 and the second telescopic plate 420 according to the thickness of the rubber strip, so as to control the gap between the two first telescopic plates 320 and the gap between the two second telescopic plates 420;

[0072] The telescopic adjustment unit 630 is configured to determine whether to adjust the extension distance of the first telescopic plate 320 and the second telescopic plate 420 according to the rubber strip conveying speed when the rubber strip passes through the gap. If the judgment result is that adjustment is required, the extension distance is controlled according to the rubber strip conveying speed.

[0073] It is understood that in some embodiments of the present application, the control module 600 is intended to optimize the processing process of the rubber strip and improve production efficiency and product quality by accurately controlling the parameters of the rubber strip. The acquisition unit 610 is responsible for real-time monitoring of the thickness and conveying speed of the rubber strip, which are important for ensuring the quality of the rubber strip during the production process. The telescopic control unit 620 uses the rubber strip thickness information to preliminarily set the extension distance of the telescopic plate to ensure that the rubber strip can pass smoothly during the conveying process, avoiding production delays or damage to the rubber strip caused by size mismatch. The telescopic adjustment unit 630 further dynamically adjusts the extension distance of the telescopic plate according to the conveying speed of the rubber strip to ensure that the rubber strip can maintain stable conveying at different speeds and reduce tension or pressure problems caused by speed changes. This dynamic adjustment mechanism helps to maintain the continuity of the production process and the integrity of the rubber strip, thereby improving overall production efficiency and product quality. In summary, the control module 600 not only improves the automation level of the production process through real-time monitoring and dynamic adjustment, but also ensures the accuracy and reliability of the rubber strip processing.

[0074] In some embodiments of the present application, when the telescopic control unit 620 is configured to preliminarily determine the extension distance of the first telescopic plate 320 and the second telescopic plate 420 according to the thickness of the rubber strip, the method includes:

[0075] Setting a first thickness and a second thickness, wherein the first thickness is smaller than the second thickness;

[0076] If the thickness of the rubber strip is less than or equal to the first thickness, the extension distance of the first telescopic plate 320 and the second telescopic plate 420 is determined to be the first distance;

[0077] If the thickness of the rubber strip is greater than the first thickness and less than the second thickness, the extension distance of the first telescopic plate 320 and the second telescopic plate 420 is determined to be the second distance;

[0078] If the thickness of the rubber strip is greater than or equal to the second thickness, the extension distance of the second telescopic plate 420 is determined to be the third distance;

[0079] The first distance is greater than the second distance, and the second distance is greater than the third distance.

[0080] It is understood that in some embodiments of the present application, the configuration of the telescopic control unit 620 can preliminarily determine the extension distance of the first telescopic plate 320 and the second telescopic plate 420 according to the thickness of the rubber strip, so as to achieve more precise control and adaptability. By setting two reference thickness values: the first thickness and the second thickness, three different ranges of rubber strip thickness can be distinguished, and a specific extension distance can be set for each range. When the thickness of the rubber strip is less than or equal to the first thickness, the telescopic plate is extended to the first distance, which ensures that there is enough telescopic space to adapt to materials of different thicknesses even when the rubber strip is thin. When the thickness of the rubber strip is between the first thickness and the second thickness, the telescopic plate is extended to the second distance, which provides an appropriate telescopic range for medium-thick rubber strips. When the thickness of the rubber strip is greater than or equal to the second thickness, the telescopic plate is extended to the third distance, ensuring that the telescopic plate can provide sufficient pressure and stability when the rubber strip is thick. This graded extension distance setting not only improves the adaptability of the equipment, but also optimizes the operating efficiency, because the extension distance of the telescopic plate is adjusted according to actual needs, thereby reducing unnecessary energy consumption and material waste. In addition, this hierarchical control also helps to extend the service life of the equipment because it avoids mechanical wear caused by excessive extension. In short, this configuration of the telescopic control unit 620 based on the thickness of the rubber strip provides a solid foundation for achieving efficient, precise and energy-saving operation by intelligently adjusting the extension distance of the telescopic plate.

[0081] In some embodiments of the present application, the telescopic adjustment unit 630 is configured to determine whether to adjust the extension distance of the first telescopic plate 320 and the second telescopic plate 420 according to the rubber strip conveying speed when the rubber strip passes through the gap, including:

[0082] A safety threshold of the rubber strip conveying speed is set. If the rubber strip conveying speed is greater than or equal to the rubber strip conveying speed threshold, it is determined that the extension distances of the first telescopic plate 320 and the second telescopic plate 420 need to be adjusted;

[0083] If the rubber strip conveying speed is less than the rubber strip conveying speed threshold, it is determined that there is no need to adjust the extension distances of the first telescopic plate 320 and the second telescopic plate 420 .

[0084] It is understandable that in some embodiments of the present application, the configuration of the telescopic adjustment unit 630 can determine whether it is necessary to adjust the extension distance of the first telescopic plate 320 and the second telescopic plate 420 according to the conveying speed of the rubber strip when passing through the gap. Specifically, by setting a safety threshold for the conveying speed of the rubber strip, it is possible to intelligently determine whether the conveying speed of the rubber strip is within a safe range. If the conveying speed of the rubber strip is greater than or equal to this threshold, the extension distance of the telescopic plate is automatically adjusted to adapt to the conveying speed of the rubber strip, thereby ensuring the smoothness and efficiency of the production process. On the contrary, if the conveying speed of the rubber strip is lower than this threshold, it is determined that it is not necessary to adjust the extension distance of the telescopic plate, which can avoid unnecessary adjustments, reduce mechanical wear, and improve the stability and service life of the equipment. This intelligent adjustment mechanism not only improves production efficiency, but also ensures the safety of operation, while reducing maintenance costs.

[0085] In some embodiments of the present application, when the telescopic adjustment unit 630 is configured to control the elongation distance according to the rubber strip conveying speed, it includes:

[0086] Calculate the distance between the two first telescopic plates 320 or the distance between the two second telescopic plates 420 and record it as the gap distance;

[0087] Calculate the difference between the gap distance and the thickness of the rubber strip;

[0088] The speed influence value is calculated according to the difference and the rubber strip conveying speed, and the extension distance is adjusted according to the speed influence value.

[0089] In some embodiments of the present application, the speed influence value is calculated according to the difference and the rubber strip conveying speed, and the extension distance is adjusted according to the speed influence value, including:

[0090] The speed impact value is calculated by the following formula:

[0091] Y=(△H / Hj)*(V / V0);

[0092] Among them, Y represents the speed influence value, △H represents the difference, Hj represents the rubber strip thickness, V represents the rubber strip conveying speed, and V0 represents the rubber strip conveying speed safety threshold;

[0093] Setting a first impact value and a second impact value, wherein the first impact value is smaller than the second impact value;

[0094] If the speed influence value is less than the first influence value, the extension distance is adjusted by the first adjustment coefficient;

[0095] If the speed influence value is greater than or equal to the first influence value and less than or equal to the second influence value, the extension distance is adjusted by the second adjustment coefficient;

[0096] If the speed influence value is greater than the second influence value, the extension distance is adjusted by the third adjustment coefficient;

[0097] The value range of the adjustment coefficient is 1<first adjustment coefficient<second adjustment coefficient<third adjustment coefficient<1.5, and the elongation distance after adjustment is the product of the elongation distance before adjustment and the adjustment coefficient.

[0098] It is understood that in the embodiment of the present application, the configuration of the telescopic adjustment unit 630 can dynamically adjust the extension distance according to the rubber strip conveying speed, thereby optimizing the rubber strip conveying process. By calculating the difference between the gap distance between the two sets of telescopic plates and the rubber strip thickness, the current rubber strip conveying state can be evaluated. Further, by calculating the speed influence value Y, the system can adjust the extension distance according to the rubber strip conveying speed V and the safety threshold V0 to ensure the stability and efficiency of the rubber strip conveying. Specifically, the calculation of the speed influence value Y takes into account the relative relationship between the rubber strip thickness Hj and the gap distance △H, as well as the comparison between the rubber strip conveying speed V and the safety threshold V0. According to the calculated speed influence value Y, different adjustment coefficients are used to fine-tune the extension distance. These adjustment coefficients are set between 1 and 1.5, ensuring that the adjustment of the extension distance is neither excessive nor insufficient, thereby maintaining the stable conveying of the rubber strip at different conveying speeds. Through this dynamic adjustment mechanism, the loss and waste of the rubber strip during the conveying process can be effectively reduced, the production efficiency can be improved, and the wear and maintenance costs of the equipment can be reduced. In addition, this intelligent adjustment can reduce the need for human intervention, improve the level of automation in the entire production process, and bring significant economic benefits to manufacturing companies.

[0099] See also Figure 4 In some embodiments of the present application, the latch 500 includes:

[0100] The telescopic rod 510 is inserted into the through hole of the bracket 100;

[0101] A fixed end 520 is fixed to one end of the telescopic rod 510 , and the fixed end 520 is also located on one side of the bracket 100 ;

[0102] The edge rod 530 is fixed to the other end of the telescopic rod 510, and the edge rod 530 is L-shaped.

[0103] It can be understood that the telescopic rod 510 is inserted into the through hole of the bracket 100, providing flexible length adjustment capability, adapting to different installation requirements, and conveniently fixing the middle plate 300 and the top plate 400. The fixed end 520 is fixed to one end of the telescopic rod 510 and is located on one side of the bracket 100, ensuring the stability and reliability of the structure. The edge rod 530 is fixed to the other end of the telescopic rod 510. The edge rod 530 can prevent the middle plate 300 and the top plate 400 from rotating in the through hole when fixing the middle plate 300 and the top plate 400, so that the edge rod 530 maintains stability. The L-shaped design of the edge rod 530 facilitates the fixing of the middle plate 300 and the bottom plate 200. Overall, this latch 500 structure is not only easy to install and adjust, but also has good adaptability and durability while ensuring a firm connection.

[0104] In some embodiments of the present application, the cross-sections of the through hole and the prism 530 are polygons of the same shape, the outer diameter of the telescopic rod 510 is smaller than the outer diameter of the prism 530, and the outer diameter of the prism 530 is smaller than the inner diameter of the through hole.

[0105] It is understood that in some embodiments of the present application, the through hole and the rib 530 adopt a polygonal cross-section of the same shape, and this design can ensure the stability of the structure and uniform force. The outer diameter of the telescopic rod 510 is smaller than the outer diameter of the rib 530, and the outer diameter of the rib 530 is smaller than the inner diameter of the through hole. Such a size relationship allows the telescopic rod 510 to slide freely in the through hole while maintaining an appropriate gap between the rib 530 and the through hole, ensuring the flexibility and telescopic performance of the device, which not only improves the reliability of the mechanical structure, reduces costs, but also facilitates maintenance and replacement of parts.

[0106] In some embodiments of the present application, the roll-off stand further comprises:

[0107] The universal wheels 700 include a plurality of universal wheels 700 , which are arranged at the bottom of the bracket 100 .

[0108] It is understandable that the setting of the universal wheel 700 makes the roll-off rack highly mobile and flexible, and the staff can easily move the roll-off rack, thereby improving work efficiency. Secondly, since the universal wheel 700 can rotate freely, the roll-off rack can better adapt to the unevenness of the ground during movement, reduce wear on the ground, and also reduce resistance and impact during operation, protecting the roll-off rack and the coil from damage. In addition, the use of the universal wheel 700 also makes the positioning of the roll-off rack more accurate and stable, and the staff can easily fix the roll-off rack in the desired position to ensure the safety and accuracy of the operation. In summary, by setting the universal wheel 700 at the bottom of the roll-off rack, the convenience, flexibility and stability of its operation can be significantly improved, thereby bringing a better user experience to the user.

[0109] In summary, the adjustable telescopic structure of the present invention enables the device to flexibly adjust the gap according to the different sizes of objects and working requirements, so that the device can handle coils or objects of different thicknesses without replacing the fixed structure or making complicated adjustments. The adaptability of the equipment is greatly improved. In addition, the design of the telescopic plate enhances the safety of the equipment. By precisely adjusting the gap, the rubber strip is ensured not to be damaged during the coiling process, and the jamming or clogging problems caused by improper gaps are reduced. Finally, the design of the latch 500 effectively simplifies the fixing process of the middle plate 300 and the top plate 400, making it convenient to store the middle plate 300 and the top plate 400 when not in use, making the equipment more convenient and reliable.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A roll-off stand, characterized in that: include: Bracket; A bottom plate, arranged at the bottom of the bracket, and the rubber strip is placed on the bottom plate; Two middle plates are provided, the two middle plates are arranged on the bracket opposite to each other, one side of the middle plate is hinged to the bracket, and the middle plate is also located on the upper part of the bottom plate; wherein the middle plate comprises a first fixed plate and a first telescopic plate, the first fixed plate is hinged to the first telescopic plate, the telescopic ends of the first telescopic plates of the two middle plates are adjacent, and the rubber strip passes through the gap between the two first telescopic plates; There are two top plates, the two top plates are arranged on the bracket opposite to each other, one side of the top plate is hinged to the bracket, and the top plate is also located on the upper part of the middle plate; wherein the top plate comprises a second fixed plate and a second telescopic plate, the second fixed plate is hinged to the second telescopic plate, the telescopic ends of the second telescopic plates of the two top plates are adjacent, and the rubber strip passes through the gap between the two second telescopic plates; A latch is inserted on the bracket, the latch is L-shaped, and the latch is used to fix the middle plate and the top plate.

2. The roll-off stand according to claim 1, characterized in that: The roll-off stand also includes: Two control modules are provided, one of which is connected to the first fixed plate, and the other is connected to the second fixed plate. The control modules are used to control the extension and retraction of the first and second retractable plates according to the rubber strip parameters.

3. The roll-off stand according to claim 2, characterized in that: The control module comprises: A collecting unit is configured to collect rubber strip parameters, wherein the rubber strip parameters include rubber strip thickness and rubber strip conveying speed; A telescopic control unit, configured to preliminarily determine the extension distance of the first telescopic plate and the second telescopic plate according to the thickness of the rubber strip, so as to control the gap between the two first telescopic plates and the gap between the two second telescopic plates; The telescopic adjustment unit is configured to determine whether to adjust the extension distance of the first telescopic plate and the second telescopic plate according to the rubber strip conveying speed when the rubber strip passes through the gap. If the judgment result is that adjustment is required, the extension distance is controlled according to the rubber strip conveying speed.

4. The roll-off stand according to claim 3, characterized in that: When the telescopic control unit is configured to preliminarily determine the extension distances of the first telescopic plate and the second telescopic plate according to the thickness of the rubber strip, the method comprises: Setting a first thickness and a second thickness, wherein the first thickness is smaller than the second thickness; If the thickness of the rubber strip is less than or equal to the first thickness, determining the extension distance of the first telescopic plate and the second telescopic plate to be a first distance; If the thickness of the rubber strip is greater than the first thickness and less than the second thickness, determining the extension distance of the first telescopic plate and the second telescopic plate to be the second distance; If the thickness of the rubber strip is greater than or equal to the second thickness, determining the extension distance of the second telescopic plate to be a third distance; The first distance is greater than the second distance, and the second distance is greater than the third distance.

5. The roll-off stand according to claim 4, characterized in that: When the telescopic adjustment unit is configured to determine whether to adjust the extension distance of the first telescopic plate and the second telescopic plate according to the rubber strip conveying speed when the rubber strip passes through the gap, the telescopic adjustment unit comprises: Setting a safety threshold of the rubber strip conveying speed, if the rubber strip conveying speed is greater than or equal to the rubber strip conveying speed threshold, it is determined that the extension distances of the first telescopic plate and the second telescopic plate need to be adjusted; If the rubber strip conveying speed is less than the rubber strip conveying speed threshold, it is determined that there is no need to adjust the extension distances of the first telescopic plate and the second telescopic plate.

6. The roll-off stand according to claim 5, characterized in that: When the telescopic adjustment unit is configured to control the extension distance according to the rubber strip conveying speed, it includes: Calculate the distance between the two first telescopic plates or the distance between the two second telescopic plates, and record it as the gap distance; Calculating the difference between the gap distance and the thickness of the rubber strip; A speed influence value is calculated according to the difference and the rubber strip conveying speed, and the extension distance is adjusted according to the speed influence value.

7. The roll-off stand according to claim 6, characterized in that: Calculating a speed influence value according to the difference and the rubber strip conveying speed, and adjusting the extension distance according to the speed influence value, includes: The speed impact value is calculated by the following formula: Y=(△H / Hj)*(V / V0); Among them, Y represents the speed influence value, △H represents the difference, Hj represents the rubber strip thickness, V represents the rubber strip conveying speed, and V0 represents the rubber strip conveying speed safety threshold; Setting a first impact value and a second impact value, wherein the first impact value is smaller than the second impact value; If the speed influence value is less than the first influence value, adjusting the extension distance by a first adjustment coefficient; If the speed influence value is greater than or equal to the first influence value and less than or equal to the second influence value, the extension distance is adjusted by a second adjustment coefficient; If the speed influence value is greater than the second influence value, adjusting the extension distance by a third adjustment coefficient; The value range of the adjustment coefficient is 1<first adjustment coefficient<second adjustment coefficient<third adjustment coefficient<1.5, and the elongation distance after adjustment is the product of the elongation distance before adjustment and the adjustment coefficient.

8. The roll-off stand according to claim 1, characterized in that: The latch comprises: A telescopic rod, inserted into the through hole of the bracket; A fixed end, fixed to one end of the telescopic rod, the fixed end also being located on one side of the bracket; A ridge bar is fixed to the other end of the telescopic rod, and the ridge bar is L-shaped.

9. The roll-off stand according to claim 8, characterized in that: The cross sections of the through hole and the prism are polygons of the same shape, the outer diameter of the telescopic rod is smaller than the outer diameter of the prism, and the outer diameter of the prism is smaller than the inner diameter of the through hole.

10. The roll-off stand according to claim 1, characterized in that: The roll-off stand also includes: The universal wheels include a plurality of universal wheels, and the universal wheels are arranged at the bottom of the bracket.

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