Roll paper mounting and fixing device for film adhesive production

Abstract

The utility model relates to a roll paper mounting and fixing device for film adhesive production, which is characterized in that a turnover I-shaped bracket is arranged on an uncoiler, two opening parts of the I-shaped bracket can be alternately switched between a first station and a second station, air cylinders are respectively and horizontally arranged on two symmetrical sides of each opening part, a top head is arranged at the telescopic end of each air cylinder, and the top head is provided with a fixed support. The top head is provided with a stop disc and a guide shaft protruding outwards from the middle of the stop disc, the guide shaft is provided with at least two supporting bones capable of synchronously expanding and contracting in the radial direction, and the supporting bones extend in the axial direction of the guide shaft and expand in a pneumatic mode. The air cylinders work synchronously or independently through electric control setting, so that the top heads can stretch out, the guide shafts are inserted into middle holes of roll paper, the stop discs are used for pushing and pressing the roll paper tightly, the supporting bones expand and support the inner side walls of the middle holes, and the roll paper is stably installed on the I-shaped support. The automatic feeding device is simple in structure, convenient to assemble and maintain, capable of optimizing the feeding procedure, smoother in production, capable of achieving pneumatic operation, practical, energy-saving and capable of meeting the automatic production requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of adhesive film paper production equipment, in particular to a roll paper installation and fixing device used in adhesive film paper production. Background Art

[0002] In the production of film paper, rolls (base paper) are unloaded from the unwinder to the gluing line. The securing of the rolls significantly impacts production, as they must support the weight of the rolls while maintaining the tension of the entire line. Instability in this process not only results in waste but also severely impacts product quality. Traditionally, the rolls are attached to the unwinder via a bearing shaft that penetrates a central hole within the roll (the hole originating from the rewinding bobbin). Once the bearing shaft is inserted, both ends are attached to connectors pre-installed in the unwinder. This approach poses issues with the stability and coaxiality of the shaft ends, significantly impacting roll delivery. This can lead to loosening, deviation, speed misalignment, and paper folds, uneven gluing, and breakage. Furthermore, the bearing shaft is inconvenient to install and remove, increasing worker workload. Summary of the Invention

[0003] The purpose of the utility model is to provide a roll paper installation and fixing device for film paper production, which can well solve the above technical problems.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The roll paper installation and fixing device for the production of film paper includes a uncoiler, the uncoiler is provided with a flip-up I-shaped bracket, the two opening parts of the I-shaped bracket can be alternately transformed into the first station and the second station, and cylinders are horizontally installed on the symmetrical sides of each opening part, and the telescopic end of the cylinder is provided with a head, and the head is provided with a stop disk and a guide shaft protruding outward from the middle of the stop disk. The guide shaft is provided with at least two support bones that can be synchronously expanded and contracted radially, and the support bones extend along the axial direction of the guide shaft and are pneumatically expanded; the two symmetrical cylinders of each opening part are set to work synchronously or separately through electronic control, so that the head can be extended to allow the guide shaft to be inserted into the middle hole of the roll paper, the stop disk is used to push and squeeze the roll paper, and the support bones expand the inner wall of the support middle hole, so that the roll paper is stably installed on the I-shaped bracket.

[0006] The above solution is further that a control ring is movably sleeved on the guide shaft, and the inner hole diameter of the control ring matches the hole diameter of the middle hole of the paper roll; when the paper roll is installed, the control ring is supported between the paper roll and the stop plate, and the control ring limits the support bone from excessive expansion.

[0007] The above solution is further that the first workstation and the second workstation are distributed at an angle of 180°, and a material supporting mechanism is provided on the lower side of the first workstation. The material supporting mechanism works by lifting and lowering, so that the paper roll is lifted to the opening of the I-shaped bracket with the help of the material supporting mechanism and docks with the top head.

[0008] After adopting the above structure, the utility model has cylinders installed horizontally on the symmetrical two sides of each opening, and the telescopic end of the cylinder is provided with a head. The two symmetrical cylinders of each opening are set to work synchronously or separately through the electronic control setting, so that the head can be extended to allow the guide shaft to be inserted into the middle hole of the paper roll. The stop plate is used to push and squeeze the paper roll, and at the same time the support bone expands the inner side wall of the support middle hole, so that the paper roll is stably installed on the I-shaped bracket; the work of penetrating the load-bearing shaft and the connection and fixing work of the load-bearing shaft and the uncoiler is reduced, the feeding process is optimized, the labor intensity of the workers is reduced, and the problem of stability and coaxiality of the paper roll installation can be well solved by the telescopic and tightening method of the head. For paper rolls of different weights (diameters) and different tension requirements, they can be pressed and controlled without deviation, so as to achieve production stability and strong load-bearing capacity; the surface of the paper roll is flat and not folded during production, and the cutting edge size is accurate, which is beneficial to the production of film paper and improves product quality; production is smoother, without shaking, with high reliability, and reduces unnecessary waste.

[0009] The utility model has a simple structure, is easy to assemble and maintain, is pneumatically operated, is practical and energy-saving, and meets the requirements of automated production. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Attachment Figure 1 This is a schematic structural diagram of a preferred embodiment of the utility model;

[0011] Attachment Figure 2 for Figure 1 A schematic diagram of the plug structure of an embodiment;

[0012] Attachment Figure 3 for Figure 1 Schematic diagram of the connection structure between the mandrel and the paper roll in an embodiment. DETAILED DESCRIPTION

[0013] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention.

[0014] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] See Figure 1 、 2Figures 3 and 4 are schematic diagrams of the structure of a preferred embodiment of the present invention. The present invention relates to a paper roll installation and fixing device for the production of adhesive film paper, comprising an uncoiler 100. The uncoiler 100 is provided with a reversible I-shaped bracket 1. The two openings of the I-shaped bracket 1 can be alternately switched between a first station and a second station. Cylinders 2 are horizontally mounted on the symmetrical sides of each opening. The telescopic ends of the cylinders 2 are provided with plugs 3. The plugs 3 on both sides of each opening are coaxially opposed. The plugs 3 are provided with a stop plate 31 and a guide shaft 32 protruding outward from the middle of the stop plate 31. The guide shaft 32 is provided with at least two support bones 33 that can be synchronously expanded and retracted radially. The support bones 33 extend along the axial direction of the guide shaft 32 and are pneumatically expanded. The support bones 33 on the same guide shaft 32 are evenly spaced around the outer circumference of the guide shaft 32 to facilitate expansion and support. The expansion and retraction working principle of the support bones 33 can be referenced from existing pneumatic expansion shafts and will not be described in detail here. In this embodiment, the two symmetrical cylinders 2 in each opening can operate synchronously or independently through an electronic control setup, such as by controlling the air supply via a solenoid valve. Synchronous operation of the two cylinders 2 improves work efficiency and aligns and tightens the paper roll, while independent operation facilitates adjustment and is suitable for paper rolls of varying weights (diameters or lengths). The cylinders 2 drive the mandrel 3 to extend, allowing the guide shaft 32 to insert into the center hole 201 of the paper roll 200. The stop plate 31 pushes and squeezes the paper roll 200, while the support ribs 33 expand the inner sidewalls of the center hole 201, ensuring that the paper roll 200 is stably mounted on the I-shaped support 1 for unwinding. This utility model reduces the work involved in inserting the load-bearing shaft and connecting and securing the load-bearing shaft to the uncoiler, optimizing the process and reducing worker labor. Furthermore, by extending and tightening the mandrel, it effectively addresses issues of paper roll installation stability and coaxiality.

[0016] The two openings of the I-shaped bracket 1 of the present invention can be used to install rolls of paper respectively, and the two openings of the I-shaped bracket 1 can be used to alternately switch between the first and second workstations to achieve alternate unwinding of different rolls of paper, thereby improving work efficiency.

[0017] Furthermore, in this embodiment, a control ring 4 is movably mounted on the guide shaft 32, facilitating fabrication and assembly. The control ring 4 is preferably made of a rigid material, at least as rigid as the tube 202 that forms the central hole 201 within the paper roll 200. Furthermore, the inner diameter of the control ring 4 matches the diameter of the central hole 201 within the paper roll 200. When the paper roll 200 is installed, the control ring 4 is positioned between the paper roll 200 and the stop plate 31, not only providing pressure on the paper roll 200 but also limiting the expansion of the support ribs 33 through their inner diameter, preventing misalignment caused by deformation of the central hole 201. This structure provides excellent protection for the paper tube 202, ensuring that the support ribs 33 expand to support unwinding while preventing them from over-extensioning the tube 202. This ensures proper unwinding, protects the tube 202, and extends its service life.

[0018] Furthermore, in this embodiment, the first workstation and the second workstation are distributed at an angle of 180°, and a material supporting mechanism 300 is provided on the lower side of the first workstation. The material supporting mechanism 300 works by lifting and lowering, so that the roll paper 200 is lifted to the opening of the I-shaped bracket 1 with the help of the material supporting mechanism 300 and docked with the top head 3, which is beneficial to the loading work, reduces the labor intensity of the workers, and also helps to stably and accurately install the roll paper 200 in the I-shaped bracket 1.

[0019] The utility model has a simple structure, is easy to assemble and maintain, and is pneumatically operated. It is practical and energy-saving, and meets the requirements of automated production. Cylinders are installed horizontally on the symmetrical sides of each opening, and the telescopic ends of the cylinders are provided with rams. The two symmetrical cylinders of each opening are set to work synchronously or independently through electronic control, so that the rams can be extended to allow the guide shaft to be inserted into the middle hole of the paper roll. The stop plate is used to push and squeeze the paper roll, while the support bone expands the inner wall of the support middle hole, so that the paper roll can be stably installed on the I-shaped bracket. Through the extension and tightening of the ram, the problems of paper roll installation stability and coaxiality can be well solved. For paper rolls of different weights (diameters) and different tension requirements, they can be pressed and controlled without deviation, achieving production stability and strong load-bearing capacity; making the surface of the paper roll flat and not folded during production, and the cutting edge size accurate, which is beneficial to the production of film paper and improves product quality; making production smoother, without shaking, with high reliability, and reducing unnecessary waste.

[0020] The above detailed description of the present invention in combination with the implementation methods is only for illustrating the technical concept and features of the present invention. Its purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. It cannot be used to limit the scope of protection of the present invention. Therefore, all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A roll paper installation and fixing device for producing film paper, comprising an unwinder (100), characterized in that: The uncoiler (100) is provided with a reversible I-shaped bracket (1), the two openings of the I-shaped bracket (1) can be alternately switched between the first station and the second station, and a cylinder (2) is horizontally mounted on the symmetrical sides of each opening, the telescopic end of the cylinder (2) is provided with a head (3), the head (3) is provided with a stop plate (31) and a guide shaft (32) protruding outward from the middle of the stop plate (31), the guide shaft (32) is provided with at least two support bones (31) that can be synchronously radially expanded and contracted. 3), the support bone (33) extends along the axial direction of the guide shaft (32) and is pneumatically expanded; the two symmetrical cylinders (2) of each opening portion work synchronously or individually through an electronic control setting, so that the head (3) can be extended, allowing the guide shaft (32) to be inserted into the middle hole (201) of the paper roll (200), the stop plate (31) is used to push and squeeze the paper roll (200), and the support bone (33) expands the inner side wall of the support middle hole (201), so that the paper roll (200) is stably installed on the I-shaped bracket (1).

2. The roll paper installation and fixing device for film paper production according to claim 1, characterized in that: A control ring (4) is movably sleeved on the guide shaft (32), and the inner hole diameter of the control ring (4) matches the hole diameter of the middle hole (201) of the paper roll (200); when the paper roll (200) is installed, the control ring (4) is supported between the paper roll (200) and the stop plate (31), and the control ring (4) limits the support bone (33) from excessive expansion.

3. The roll paper installation and fixing device for film paper production according to claim 1, characterized in that: The first station and the second station are arranged at an angle of 180 degrees. A supporting mechanism (300) is provided on the lower side of the first station. The supporting mechanism (300) operates in a lifting manner, so that the roll paper (200) is lifted to the opening of the I-shaped bracket (1) with the help of the supporting mechanism (300) and docked with the head (3).

Images