Self-adapting mechanism for paper roll brake

Abstract

The utility model discloses a kind of paper tube brake self-adaptive mechanisms, including rotating device and tensioning device;The rotating device includes rotating shaft, rotating plate and rotating shaft bearing, rotating shaft is installed at rotating shaft bearing, rotating shaft bearing is installed on rack mounting plate, the end of rotating shaft installs rotating plate, rotating plate is equipped with several belt connecting rods;The tensioning device includes brake belt one, one end of brake belt one is connected with 1 belt connecting rod, the other end of brake belt one is connected with tensioning rod one by passing through first paper tube main shaft, first paper tube main shaft passes through rack mounting plate and is parallel with rotating shaft, a set of support rod is installed around first paper tube main shaft circumference on rack mounting plate, tensioning rod one is installed on support rod, adjusting hand wheel is used for locking tensioning rod one, the utility model can better solve when film in running process, tight and loose lead to uneven tension, to lead to the problem of unstable bagging of packaging bag, higher strength, easy to install.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, specifically a self-adaptive braking mechanism for paper rolls. Background Technology

[0002] During the operation of a packaging machine, the initial diameter of the packaging film roll is typically around 320mm. As the machine runs, the film diameter gradually decreases, causing the film tension to gradually increase during normal operation, resulting in unstable bag length. Furthermore, the packaging machine may experience intermittent operation for various reasons, further exacerbating the instability of the film tension. Unstable tension can affect the sealing and appearance of the packaged bag during the bag-making process, and in severe cases, may even cause the packaging film to break. Utility Model Content

[0003] This utility model discloses a paper roll brake adaptive mechanism, which ensures that the paper roll is subjected to uniform tension when the packaging machine is running and the diameter of the roll is any size, thus solving the problem of unstable bag formation caused by uneven tension of the packaging roll.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] This utility model discloses a paper roll brake adaptive mechanism, including a rotating device and a tensioning device;

[0006] The rotating device includes a rotating shaft, a rotating plate, and a rotating shaft bearing. The rotating shaft is installed at the rotating shaft bearing, the rotating shaft bearing is installed on the frame mounting plate, and the rotating plate is installed at the end of the rotating shaft. The rotating plate is provided with several belt connecting rods.

[0007] The tensioning device includes a tension spring, a brake belt, a tensioning rod, an adjusting handwheel, and a support rod. One end of the brake belt is connected to a belt connecting rod, and the other end of the brake belt passes around the main shaft of the first paper roll and is connected to the tensioning rod. The main shaft of the first paper roll passes through the frame mounting plate and is parallel to the rotation axis. A set of support rods is installed around the circumference of the main shaft of the first paper roll on the frame mounting plate. The tensioning rod is installed on the support rods, and the adjusting handwheel is used to lock the tensioning rod.

[0008] Furthermore, two rotating shaft rollers are mounted on the rotating shaft, with a gap between the two rotating shaft rollers. A paper shortage switch mounting rod is mounted on the frame mounting plate, and the paper shortage switch is mounted on the paper shortage switch mounting rod, located directly above the gap between the two rotating shaft rollers.

[0009] Furthermore, two vertical guide plates are installed on the rotating shaft, and two guide rollers are installed between the two guide plates, with the two guide rollers located below the two rotating shaft rollers.

[0010] Furthermore, the first roll of paper tube spindle is mounted on the frame mounting plate via bearings.

[0011] Furthermore, the rotating plate is provided with two belt connecting rods, which are symmetrically arranged with respect to the rotation axis.

[0012] Furthermore, when a double-roll paper tube device is installed, a second brake belt and a second paper tube main shaft are also provided. The second brake belt is wound around the second paper tube main shaft, and one end of the second brake belt is installed on the second belt connecting rod.

[0013] Furthermore, a set of support rods is installed around the circumference of the second paper roll spindle on the frame mounting plate. One end of the brake belt is installed on the tension rod, which is installed on one of the support rods. The handwheel is adjusted to lock the tension rod.

[0014] The beneficial effects of this utility model are:

[0015] This invention, through the coordinated action of a rotating device and a tensioning device, can constrain the rotation angle of the rotating plate and tighten brake belts one and two (hereinafter referred to as brake belts) when the packaging machine is running and the film roll diameter changes arbitrarily. The friction between the brake belts and the main shafts of the first and second paper rolls limits the inertial rotation of the paper rolls, thereby effectively solving the problem of unstable bag formation caused by uneven film tension. Moreover, the overall structure is simple, strong, durable, and easy to install. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram from another perspective of an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of an embodiment of the present invention.

[0020] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0021] Figure 5 This is a schematic diagram of the film-wrapping process on one of the paper rolls according to an embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the wrapping process on another paper roll according to an embodiment of the present invention. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] As shown in the figure, this utility model discloses a paper roll brake adaptive mechanism, including a rotating device and a tensioning device;

[0025] The rotating device includes a rotating shaft 1, a rotating plate 2, and a rotating shaft bearing 3. The rotating shaft 1 is installed at the rotating shaft bearing 3, and the rotating shaft bearing 3 is installed on the frame mounting plate 4. The rotating plate 2 is installed at the end of the rotating shaft 1, and the rotating plate 2 is provided with several belt connecting rods 5.

[0026] The tensioning device includes a tension spring 6, a brake belt 7, a tensioning rod 8, an adjusting handwheel 9, and a support rod 10. One end of the brake belt 7 is connected to a belt connecting rod 5, and the other end of the brake belt 7 passes around the main shaft 11 of the first paper roll and is connected to the tensioning rod 8. The main shaft 11 of the first paper roll passes through the frame mounting plate 4 and is parallel to the rotating shaft 1. A set of support rods 10 are mounted on the frame mounting plate 4 around the circumference of the main shaft 11 of the first paper roll. The tensioning rod 8 is mounted on the support rods 10. The adjusting handwheel 9 is used to lock the tensioning rod 8. The adjusting handwheel 9 and the tensioning rod 8 are connected by threads. Locking is completed when the adjusting handwheel 9 abuts against the support rod 10. When the wrapping film B is moving normally, the rotating plate 2 is in the initial state, and the tension spring 6 is in the initial state. At this time, the tension spring 6 is subjected to the initial force, which constrains the rotation angle of the rotating plate 2. At this time, the brake belt 7 should be tightened and tightly wrapped around the main shaft 11 of the first paper roll. Since the brake belt 7 is wrapped around the main shaft 11 of the first paper roll clockwise, the friction generated prevents the paper roll 21 from rotating too much in the direction of the wrapping film force due to inertia. In this way, the tension of the wrapping film B can be kept stable.

[0027] In one embodiment of this utility model, two rotating shaft rollers 12 are installed on the rotating shaft 1, and there is a gap between the two rotating shaft rollers 12. A paper shortage switch mounting rod 13 is installed on the frame mounting plate 4, and a paper shortage switch 14 is installed on the paper shortage switch mounting rod 13. The paper shortage switch 14 is located directly above the gap between the two rotating shaft rollers 12.

[0028] The film B should pass between the paper shortage switch 14 and the rotating shaft roller 12. At this time, the paper shortage switch 14 is in the open state, and the packaging machine is working normally. When the film is out of stock, the paper shortage switch 14 is in the closed state, and the packaging machine stops working.

[0029] In one embodiment of this utility model, two vertical guide plates 15 are installed on the rotating shaft 1, and two guide rollers 16-1 and 16-2 are installed between the two guide plates 15. The guide rollers 16-1 and 16-2 are positioned differently; guide roller 16-2 is located above guide roller 16-1, and the two guide rollers 16-1 and 16-2 are located below the two rotating shaft rollers 12. Guide roller 16-2 serves a guiding function. The magnitude of the force on guide roller 16-1 determines the working state of the adaptive mechanism. When the tension of the wrapping film B is resisted, that is, when guide roller 16-1 is subjected to force and moves in the direction of film movement, it drives the rotating plate 2 to rotate. At this time, the tension of the tension spring 6 increases, increasing the rotation angle of the rotating plate 2. The brake belt 7 is then released, and the paper roll 21, without the appropriate friction provided by the brake belt 7, rotates more in the direction of the wrapping force, thus reducing the wrapping tension and maintaining a stable wrapping tension.

[0030] In one embodiment of this utility model, the first paper roll spindle 11 is mounted on the frame mounting plate 4 via a bearing 17.

[0031] In one embodiment of this utility model, the rotating plate 2 is provided with two belt connecting rods 5, which are symmetrically arranged with respect to the rotating shaft 1.

[0032] In one embodiment of this utility model, when a double-roll paper tube device is provided, a second brake belt 18 and a second paper tube main shaft 19 are also provided. The second brake belt 18 is wound around the second paper tube main shaft 19, and one end of the second brake belt 18 is installed on the second belt connecting rod 5. Here, the second brake belt 18 and the second paper tube main shaft 19 are symmetrical with the first brake belt 7 and the first paper tube main shaft, and have the same structure.

[0033] In one embodiment of this utility model, a set of support rods 10 are installed on the frame mounting plate 4 around the circumference of the second paper roll spindle. One end of the brake belt 18 is installed on the tension rod 20, which is installed on one of the support rods 10. The adjusting handwheel 9 is used to lock the tension rod 20. Paper rolls 21 are installed on both the first and second paper roll spindles. If a paper roll 21 is also installed at the front end of the frame mounting plate 4, then both the brake belt 18 and the brake belt 7 are wound around the paper roll 21.

[0034] A support rod connecting plate 22 is installed at the end of the support rod 10. The support rod connecting plate 22 serves to protect the brake belt 18 and the brake belt 7.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A self-adaptive braking mechanism for a paper roll, characterized in that, Includes a rotating device and a tensioning device; The rotating device includes a rotating shaft, a rotating plate, and a rotating shaft bearing. The rotating shaft is installed at the rotating shaft bearing, the rotating shaft bearing is installed on the frame mounting plate, and the rotating plate is installed at the end of the rotating shaft. The rotating plate is provided with several belt connecting rods. The tensioning device includes a tension spring, a brake belt, a tensioning rod, an adjusting handwheel, and a support rod. One end of the brake belt is connected to a belt connecting rod, and the other end of the brake belt passes around the main shaft of the first paper roll and is connected to the tensioning rod. The main shaft of the first paper roll passes through the frame mounting plate and is parallel to the rotation axis. A set of support rods is installed around the circumference of the main shaft of the first paper roll on the frame mounting plate. The tensioning rod is installed on the support rods, and the adjusting handwheel is used to lock the tensioning rod.

2. The adaptive braking mechanism for the paper roll according to claim 1, characterized in that, Two rotating shaft rollers are mounted on the rotating shaft, with a gap between them. A paper shortage switch mounting rod is mounted on the frame mounting plate, and the paper shortage switch is mounted on the paper shortage switch mounting rod, located directly above the gap between the two rotating shaft rollers.

3. The adaptive braking mechanism for the paper roll according to claim 2, characterized in that, Two vertical guide plates are installed on the rotating shaft, and two guide rollers are installed between the two guide plates. The two guide rollers are located below the two rotating shaft rollers.

4. The adaptive braking mechanism for the paper roll according to claim 1, characterized in that, The main shaft of the first paper roll is mounted on the frame mounting plate via bearings.

5. The adaptive braking mechanism for the paper roll according to claim 1, characterized in that, The rotating plate is equipped with two belt connecting rods, which are symmetrically arranged with respect to the rotation axis.

6. The adaptive braking mechanism for the paper roll according to claim 5, characterized in that, When a double-roll paper tube device is installed, a second brake belt and a second paper tube main shaft are also provided. The second brake belt is wound around the second paper tube main shaft, and one end of the second brake belt is installed on the second belt connecting rod.

7. The adaptive braking mechanism for the paper roll according to claim 6, characterized in that, A set of support rods is installed around the circumference of the second paper roll spindle on the frame mounting plate. One end of the brake belt is installed on the tension rod, which is installed on one of the support rods. The handwheel is used to lock the tension rod.

8. The adaptive braking mechanism for the paper roll according to claim 7, characterized in that, A support rod connecting plate is installed at the end of the support rod.

Images