Double-roller conveying device with self-adjusting floating compression function

Abstract

The utility model provides a kind of double roller wheel conveying equipment with self-regulating floating pressure function, including mounting bracket, multiple conveying rollers and multiple locking mechanisms, each locking mechanism includes locking base, pull rod, swing arm and elastic reset component.When material passes through the gap between fixed conveying roller and movable conveying roller, movable conveying roller drives swing arm to produce a certain angle swing around rotation shaft under the action of material pressure, and then pull rod is also simultaneously subjected to elastic tension of elastic reset component, and dynamic balance is formed between elastic tension and the thickness of material, so that a certain pressure between fixed conveying roller and movable conveying roller is maintained all the time. The above-mentioned double roller wheel conveying equipment can adapt to the thickness of conveying material, and then automatically adjust the pressure, so that the conveying roller can provide sufficient friction to realize stable conveying of material.

Description

Technical Field

[0001] This utility model belongs to the field of double roller conveying technology, and specifically relates to a double roller conveying device with self-adjusting floating pressing function. Background Technology

[0002] In modern industrial production, roller conveyor equipment is a key component of many packaging and processing equipment, playing a particularly important role in automated production lines in industries such as food, pharmaceuticals, and daily necessities. Taking the MSK film-wrapping machine system as an example, its core function is to efficiently and accurately convey flexible, long strips of film materials to meet product packaging requirements.

[0003] The core principle of roller conveyor equipment is that it relies on two rollers to clamp the material, and the friction between the rollers drives the material forward. In actual operation, the driving roller is connected to a motor, providing power for the entire conveying process; the driven roller is tightly fitted to the material through a locking mechanism, ensuring that the material can be stably conveyed forward between the two rollers. When it is necessary to change the material, the operator must first loosen the locking device, manually place the new material between the two rollers, and then relock it to ensure that the rollers generate sufficient friction against the material, so as to ensure the smooth operation of subsequent conveying work.

[0004] However, the current locking device designs commonly used in the industry have certain limitations. These devices primarily use a latch to pull the swing arm, which in turn tightens the driven rollers to compress the material. The amount of compression is adjusted by changing the extension of the latch with the nut, thereby controlling the clamping force between the two rollers and the material. However, in actual production scenarios, problems are becoming increasingly apparent.

[0005] On the one hand, materials produced by different manufacturers, and even different batches of materials from the same manufacturer, do not have completely consistent thicknesses. This difference in thickness can significantly affect the clamping effect between the rollers and the material. On the other hand, temperature variations in the production environment are also a factor that cannot be ignored. Temperature fluctuations can cause changes in the hardness of the rubber material of the rollers, thereby altering the frictional characteristics between the rollers and the material.

[0006] Due to the combined effects of the two aforementioned situations, existing locking devices struggle to maintain a stable clamping state. Specifically, when clamping is too tight, material cannot smoothly enter the rollers, easily leading to blockages, production interruptions, and reduced efficiency. Conversely, when clamping is too loose, material slips during conveying, resulting in insufficient discharge length to meet process requirements and impacting product quality. These problems not only increase equipment maintenance costs but also create numerous inconveniences and risks for enterprise production management and product quality control, severely hindering the automation development of related industries. Utility Model Content

[0007] The purpose of this invention is to provide a double roller conveyor with a self-adjusting floating clamping function, which can adapt to the thickness of the conveyed material and adjust the clamping amount to achieve stable material conveying.

[0008] To solve the above-mentioned technical problems, this utility model provides a double roller conveying device with self-adjusting floating clamping function, including a mounting frame, multiple conveying rollers and multiple locking mechanisms, each of the locking mechanisms including a locking base, a pull rod, a swing arm and an elastic reset component;

[0009] The mounting frame has a mounting plate at each end of the conveyor roller;

[0010] All of the conveying rollers include at least one fixed conveying roller and at least one movable conveying roller. The two ends of each fixed conveying roller are rotatably connected to the two mounting plates, and the two ends of each movable conveying roller are respectively provided with a locking mechanism.

[0011] The locking base is fixed to the mounting plate, the swing arm is rotatably connected to the mounting plate via a rotating shaft, the end of the movable conveying roller is rotatably disposed on the swing arm at a position other than the rotating shaft, one end of the pull rod is mounted on the swing arm, and the other end is movably connected to the locking base via the elastic reset assembly, the elastic reset assembly having the function of causing the pull rod to drive the swing arm and the movable conveying roller toward the fixed conveying roller.

[0012] Optionally, in the above-mentioned double roller conveyor with self-adjusting floating clamping function, the locking base is provided with an insertion hole, and the pull rod passes through the insertion hole;

[0013] The elastic reset assembly includes a compression spring and an adjusting nut. The other end of the pull rod has an external thread, and the adjusting nut engages with the external thread of the pull rod. The compression spring is sleeved on the pull rod, and its two ends abut against the locking base and the adjusting nut, respectively.

[0014] Optionally, the above-mentioned double roller conveyor with self-adjusting floating clamping function also includes an observation scale for measuring the position of the adjusting nut.

[0015] Optionally, in the above-mentioned double roller conveyor with self-adjusting floating clamping function, the locking base is provided with a groove on the outside of the insertion hole, and the diameter of the groove is larger than the diameter of the insertion hole.

[0016] Optionally, in the above-mentioned double roller conveyor with self-adjusting floating clamping function, the locking base is provided with a boss on the outside of the insertion hole, and the end of the compression spring is sleeved on the outside of the boss and tightly engaged with the boss.

[0017] Optionally, in the above-mentioned double roller conveyor with self-adjusting floating clamping function, one end of the pull rod is provided with a pull ring, and the end of the swing arm is provided with a hook, and the pull ring and the hook are detachably connected.

[0018] Optionally, in the above-mentioned double roller conveyor with self-adjusting floating clamping function, the hook is a U-shaped hook, and the opening of the hook faces the opposite direction to the pull ring.

[0019] Optionally, in the above-mentioned double roller conveyor with self-adjusting floating pressing function, the swing arm is a vertically arranged strip plate, the bottom of the swing arm is provided with the rotating shaft, the middle is provided with the movable conveying roller, and the top is provided with the hook.

[0020] Optionally, in the above-mentioned double roller conveyor with self-adjusting floating pressing function, the fixed conveying roller is the driving roller and the movable conveying roller is the driven roller.

[0021] Optionally, in the above-mentioned double roller conveyor with self-adjusting floating clamping function, the locking base is fixed to the mounting plate by the first connecting bolt.

[0022] This utility model provides a double roller conveyor with a self-adjusting floating clamping function, the advantages of which are:

[0023] When material passes through the gap between the fixed and movable conveyor rollers, the movable conveyor roller, under the pressure of the material, drives the swing arm to oscillate around its axis at a certain angle. Simultaneously, the pull rod is subjected to the elastic tension of the elastic reset component. This elastic tension and the thickness of the material form a dynamic balance, ensuring that a certain clamping force is maintained between the fixed and movable conveyor rollers. Using this double-roller conveyor, the material thickness can be adaptively adjusted, automatically regulating the clamping force and ensuring the conveyor rollers provide sufficient friction for stable material transport. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 A schematic diagram of the structure of a double roller conveyor with self-adjusting floating clamping function provided for an embodiment of this utility model;

[0026] Figure 2A side view of a double roller conveyor with self-adjusting floating clamping function provided for an embodiment of this utility model;

[0027] Figure 3 A schematic diagram of the mounting plate and locking mechanism provided in an embodiment of this utility model;

[0028] Figure 4 A schematic diagram of the internal structure of the mounting plate and locking mechanism provided in an embodiment of this utility model;

[0029] Figure 5 A top view of the locking mechanism provided in an embodiment of this utility model;

[0030] Figure 6 This is a front view of the locking mechanism provided in an embodiment of the present utility model.

[0031] In the image above:

[0032] 110 - Mounting plate; 111 - First connecting bolt;

[0033] 121-Fixed conveyor roller; 122-Modible conveyor roller;

[0034] 210 - Locking base; 211 - Countersunk groove; 212 - Boss;

[0035] 220 - Pull rod; 221 - Pull ring;

[0036] 230 - Swing arm; 231 - Rotary shaft; 232 - Hook;

[0037] 240 - Compression spring;

[0038] 250 - Adjusting nut;

[0039] 260 - Observation scale. Detailed Implementation

[0040] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0041] The core of this invention is to provide a double roller conveyor with a self-adjusting floating clamping function, which can adapt to the thickness of the conveyed material and thus adjust the clamping amount to achieve stable material conveying.

[0042] To enable those skilled in the art to better understand the technical solutions provided by this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] For details, please refer to Figures 1-6 The present invention provides a double roller conveyor with self-adjusting floating clamping function, comprising: a mounting frame, multiple conveying rollers and multiple locking mechanisms, each locking mechanism comprising a locking base 210, a pull rod 220, a swing arm 230 and an elastic reset component.

[0044] The mounting frame has a mounting plate 110 at each end of the conveyor roller, with the two mounting plates 110 positioned opposite each other at the ends of the conveyor roller to provide support for the conveyor roller. The mounting frame forms a rigid support frame, so that both the fixed conveyor roller 121 and the movable conveyor roller 122 are arranged along the width direction of the mounting plate 110.

[0045] All conveying rollers include at least one fixed conveying roller 121 and at least one movable conveying roller 122, with a gap between the fixed conveying roller 121 and the movable conveying roller 122 for conveying materials.

[0046] The main structures of the fixed conveyor roller 121 and the movable conveyor roller 122 can be designed to be the same or different, as long as the conveying function of the conveyor roller can be realized.

[0047] The surface of the conveyor rollers can be provided with anti-slip textures, such as 0.5mm diamond-shaped mesh patterns laser-engraved, to effectively prevent the film from slipping or wrinkling. Each fixed conveyor roller 121 is rotatably connected to two mounting plates 110 at both ends, while the movable conveyor roller 122 can be mounted on the mounting plate 110 via a locking mechanism. A locking mechanism is provided at each end of the movable conveyor roller 122.

[0048] The locking base 210 is fixed to the mounting plate 110 located on one side of the movable conveyor roller 122. The swing arm 230 is rotatably connected to the mounting plate 110 via a rotating shaft 231. The end of the movable conveyor roller 122 is rotatably positioned on the swing arm 230 at a position other than the rotating shaft 231. One end of the pull rod 220 is mounted on the swing arm 230, and the other end is movably connected to the locking base 210 via an elastic reset assembly. The elastic reset assembly has the tendency to cause the pull rod 220 to drive the swing arm 230 and the movable conveyor roller 122 closer to the fixed conveyor roller 121.

[0049] This utility model provides a double roller conveyor with a self-adjusting floating clamping function. When the material passes through the gap between the fixed conveyor roller 121 and the movable conveyor roller 122, the movable conveyor roller 122 drives the swing arm 230 to swing around the rotating shaft 231 at a certain angle under the action of the material pressure. Then, the pull rod 220 is simultaneously subjected to the elastic tension of the elastic reset component. The elastic tension and the thickness of the material form a dynamic balance, so that the fixed conveyor roller 121 and the movable conveyor roller 122 always maintain a certain clamping force.

[0050] The aforementioned double-roller conveyor can adapt to different ambient temperatures and convey materials of different thicknesses. It can automatically adjust the clamping amount without frequent adjustments, enabling the conveyor rollers to provide sufficient friction to achieve stable material conveying.

[0051] In a specific embodiment, such as Figure 4 As shown, the locking base 210 has an insertion hole, and the pull rod 220 passes through the insertion hole. The diameter of the insertion hole is greater than or equal to the diameter of the pull rod 220.

[0052] The elastic reset assembly includes a compression spring 240 and an adjusting nut 250. The other end of the pull rod 220 has an external thread, and the adjusting nut 250 engages with the external thread of the pull rod 220. The compression spring 240 is sleeved on the pull rod 220, with both ends abutting against the locking base 210 and the adjusting nut 250, respectively. A retaining ring is provided between the ends of the adjusting nut 250 and the compression spring 240 to prevent the end of the compression spring 240 from dislodging. The adjusting nut 250 is a hexagonal flange nut.

[0053] The movable conveyor roller 122 is fixed by an elastic reset assembly consisting of a pull rod 220 and a compression spring 240. The clamping amount is adjusted by the adjusting nut 250 at the end of the pull rod 220. Due to the presence of the compression spring 240, minor changes in material thickness and temperature will not affect the clamping and conveying of the movable conveyor roller 122. By rotating the adjusting nut 250, the front-to-back position of the pull rod 220 can be adjusted, thereby adjusting the clamping amount of the compression spring 240.

[0054] like Figure 1 As shown, both ends of the conveyor roller are equipped with the same locking mechanism (only one side is shown here). To ensure that the clamping amount at both ends of the conveyor roller is consistent during adjustment, a measuring scale 260 is specifically designed to measure the position of the adjusting nut 250. The measuring scale 260 has a distance graduation on the side closest to the adjusting nut 250. By observing the graduation on the end face of the adjusting nut 250, the clamping amount at both ends of the conveyor roller can be adjusted.

[0055] Compared to existing technologies, the fixed clamping mechanism is replaced with a spring-floating clamping design. This self-adjusting floating clamping mechanism achieves dynamic balance of clamping force during conveying, avoiding the influence of material and ambient temperature on equipment operation, greatly increasing equipment compatibility and improving stability. Simultaneously, an observation scale 260 is designed to facilitate the adjustment of the consistency of clamping force at both ends of the movable conveyor roller 122.

[0056] like Figure 4As shown, the interior of the locking base 210 is hollowed out for compactness. A recessed groove 211 is provided on the outside of the insertion hole of the locking base 210. The diameter of the recessed groove 211 is larger than the diameter of the insertion hole, so that part of the pull rod 220 is housed in the recessed groove 211.

[0057] In a specific embodiment, the locking base 210 has a boss 212 on the outside of the insertion hole. The end of the compression spring 240 is sleeved on the outside of the boss 212 and tightly engaged with the boss 212, thereby restricting the lateral movement of the compression spring 240 from the end of the compression spring 240. The outer diameter of the boss 212 is slightly smaller than or equal to the inner diameter of the compression spring 240.

[0058] In a specific embodiment, such as Figure 5 and Figure 6 As shown, one end of the pull rod 220 is provided with a pull ring 221, and the end of the swing arm 230 is provided with a hook 232. The pull ring 221 and the hook 232 are detachably connected.

[0059] The hook 232 is a U-shaped hook, with its opening facing the opposite direction to the pull ring 221, allowing the front end of the pull ring 221 to be securely fixed to the swing arm 230. During assembly, the swing arm 230 can be first installed on the mounting plate 110, then the pull ring 221 of the pull rod 220 can be hooked onto the hook 232, and finally the locking base 210 can be installed on the mounting plate 110.

[0060] Furthermore, the swing arm 230 is a vertically arranged strip plate. The bottom of the swing arm 230 is provided with a rotating shaft 231, the middle is provided with a movable conveying roller 122, and the top is provided with a hook 232. The rotating shaft 231 is mounted on the mounting plate 110, and the end of the movable conveying roller 122 is installed in the swing arm hole opened in the middle of the swing arm 230, so that the movable conveying roller 122 can swing around the rotating shaft 231 as the center.

[0061] Furthermore, the fixed conveying roller 121 can be used as the driving roller, and the movable conveying roller 122 can be used as the driven roller, thereby achieving stability of the driving roller during the driving process. The locking base 210 is fixed to the mounting plate 110 by the first connecting bolt 111, thereby achieving a detachable connection between the locking base 210 and the mounting plate 110.

[0062] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and 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. Therefore, they should not be construed as limitations on this application.

[0063] In the description of this application, "multiple" means two or more. If "first" or "second" is mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0064] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "a," and / or "the" are not specifically singular and may include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. An element defined by the phrase "comprising an..." does not exclude the presence of other identical elements in the process, method, product, or apparatus that includes the element.

[0065] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0066] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0067] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A double-roller conveyor with self-adjusting floating clamping function, characterized in that, It includes a mounting frame, multiple conveying rollers, and multiple locking mechanisms, each of which includes a locking base (210), a pull rod (220), a swing arm (230), and an elastic reset assembly; The mounting frame has a mounting plate (110) at each end of the conveyor roller. All of the conveying rollers include at least one fixed conveying roller (121) and at least one movable conveying roller (122). The two ends of each fixed conveying roller (121) are rotatably connected to the two mounting plates (110), and the two ends of each movable conveying roller (122) are respectively provided with a locking mechanism. The locking base (210) is fixed on the mounting plate (110). The swing arm (230) is rotatably connected to the mounting plate (110) via a rotating shaft (231). The end of the movable conveying roller (122) is rotatably disposed on the swing arm (230) at a position other than the rotating shaft (231). One end of the pull rod (220) is mounted on the swing arm (230), and the other end is movably connected to the locking base (210) via the elastic reset assembly. The elastic reset assembly has the tendency to make the pull rod (220) drive the swing arm (230) and the movable conveying roller (122) closer to the fixed conveying roller (121).

2. The double-roller conveyor with self-adjusting floating clamping function according to claim 1, characterized in that, The locking base (210) has an insertion hole, and the pull rod (220) passes through the insertion hole; The elastic reset assembly includes a compression spring (240) and an adjusting nut (250). The other end of the pull rod (220) is provided with an external thread. The adjusting nut (250) is engaged with the external thread of the pull rod (220). The compression spring (240) is sleeved on the pull rod (220) and its two ends abut against the locking base (210) and the adjusting nut (250) respectively.

3. The double-roller conveyor with self-adjusting floating clamping function according to claim 2, characterized in that, It also includes an observation scale (260) for measuring the position of the adjusting nut (250).

4. The double-roller conveyor with self-adjusting floating clamping function according to claim 2, characterized in that, The locking base (210) has a recess (211) on the outside of the socket, and the diameter of the recess (211) is larger than the diameter of the socket.

5. The double-roller conveyor with self-adjusting floating clamping function according to claim 2, characterized in that, The locking base (210) has a boss (212) on the outside of the socket, and the end of the compression spring (240) is sleeved on the outside of the boss (212) and closely cooperates with the boss (212).

6. The double-roller conveyor with self-adjusting floating clamping function according to claim 1, characterized in that, One end of the pull rod (220) is provided with a pull ring (221), and the end of the swing arm (230) is provided with a hook (232). The pull ring (221) and the hook (232) are detachably connected.

7. The double-roller conveyor with self-adjusting floating clamping function according to claim 6, characterized in that, The hook (232) is a U-shaped hook, and the opening of the hook (232) faces the opposite direction to the pull ring (221).

8. The double-roller conveyor with self-adjusting floating clamping function according to claim 6, characterized in that, The swing arm (230) is a vertically arranged strip plate. The bottom of the swing arm (230) is provided with the rotating shaft (231), the middle is provided with the movable conveying roller (122), and the top is provided with the hook (232).

9. The double-roller conveyor with self-adjusting floating clamping function according to claim 1, characterized in that, The fixed conveying roller (121) is the driving roller, and the movable conveying roller (122) is the driven roller.

10. The double-roller conveyor with self-adjusting floating clamping function according to claim 1, characterized in that, The locking base (210) is fixed to the mounting plate (110) by the first connecting bolt (111).

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