Film connecting mechanism for polarizer production

Abstract

The utility model discloses a film connecting mechanism for polarizer production, which belongs to the technical field of polarizer production, and comprises a supporting seat, a rotating plate, a contact I and a contact II, and an unwinding roll shaft I and an unwinding roll shaft II are symmetrically arranged on the supporting seat; the rotating plates are symmetrically arranged above the supporting seat, connecting rods are rotationally connected to the rotating plates, and sliding plates are fixedly connected to the ends, away from the rotating plates, of the connecting rods; the first contact and the second contact are arranged on the two sliding plates correspondingly, and heating wires are fixedly connected to the opposite faces of the sliding plates. The roll film is attached through the attaching plate on the roll film, when the diameter of the roll film is gradually reduced, the connecting rod at the bottom of the rotating plate pushes the sliding plate, the heating wire is promoted to conduct hot melting on new and old roll films, then the film connecting operation is completed, the continuity of the production process is ensured, the use degree of the roll film can be rapidly fed back through attaching the roll film through the attaching plate, and the film connecting efficiency is ensured. By means of the automatic film connecting process, use of materials can be accurately controlled, and material waste caused by improper manual operation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of polarizing plate production, in particular to a film splicing mechanism for polarizing plate production. Background Art

[0002] The film splicer for polarizing plate production is a key piece of equipment. It is primarily responsible for continuously splicing film rolls during high-speed or wide-width production to ensure continuous and stable production. Due to the limited length of film material during polarizing plate production, when one roll of film is nearing completion, it must be promptly connected to the next roll to ensure continuous production. The film splicer is designed to achieve this goal, enabling the production line to connect a new roll of film before it runs out, thus avoiding prolonged production interruptions.

[0003] During the film splicing process, operators determine downtime based on the amount of film currently in use and align the nearly finished film roll with the new film roll on the replacement shaft. Because this is a manual process, downtime control is often imprecise. If the machine is shut down too early, the production line will wait too long for the new film roll, reducing production efficiency. If the machine is shut down too late, the production line may be suddenly interrupted when the old film roll is used up. Rethreading the film roll requires a significant amount of time, impacting production continuity and increasing the complexity of production operations. Utility Model Content

[0004] The purpose of the present utility model is to provide a film splicing mechanism for producing polarizing plates, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A film splicing mechanism for producing polarizing plates, comprising:

[0007] A support base, on which a first unwinding roller shaft and a second unwinding roller shaft are symmetrically arranged;

[0008] Rotating plates, each of which is symmetrically arranged above the support seat, each of which is rotatably connected to a connecting rod, and each of which has an end of the connecting rod away from the rotating plate fixedly connected to a slide plate;

[0009] Contact 1 and contact 2, contact 1 and contact 2 are respectively arranged on the two slides, and heating wires are fixedly connected to the opposite surfaces of the slides.

[0010] Preferably, the unwinding roller shaft 1 and the unwinding roller shaft 2 are both covered with a roll film material, and the heating wire is electrically connected to the contact 1 and the contact 2.

[0011] Preferably, support rods are symmetrically arranged above the support seats, and a torsion spring is arranged between each support rod and the rotating plate.

[0012] Preferably, one end of the torsion spring is fixed on the support rod, and one end of the torsion spring away from the support rod is fixed on the rotating plate.

[0013] Preferably, each two opposing surfaces of the support rods are provided with a fixed shaft, and the fixed shafts are rotatably connected to the rotating plate.

[0014] Preferably, upper portions of the opposing surfaces of each two rotating plates are fixedly connected with a bonding plate.

[0015] Preferably, the outer surfaces of the laminating plates are both laminated to the roll film materials of the first unwinding roller and the second unwinding roller.

[0016] Preferably, a fixing seat is provided above the supporting seat, and a film inlet and a group of rotating shafts are provided above the fixing seat.

[0017] Preferably, a film feeding roller is provided in the inner cavity of the fixing seat, and sliding grooves are symmetrically provided through the fixing seat.

[0018] Preferably, the slide grooves are all slidably connected to the slide plate, and the slide plate and the connecting rod are both located in the slide grooves.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] By laminating the film roll with the laminating plate on the film roll, when the diameter of the film roll gradually decreases, the connecting rod at the bottom of the rotating plate pushes the slide plate, prompting the heating wire to hot-melt the new and old film rolls to complete the film splicing operation, ensuring the continuity of the production process and reducing the time of production interruption due to film replacement. The heating wire can evenly heat the new and old film rolls, ensuring the quality of the hot-melt joint and avoiding gaps or unevenness at the joint.

[0021] Laminating the roll film with a laminating plate can quickly provide feedback on the usage of the roll film and ensure the efficiency of film splicing. This automated film splicing process can accurately control the use of materials and reduce material waste caused by improper manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the fixing seat structure of the utility model;

[0025] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 4 This is a schematic diagram of the overall structure of the utility model after sectioning;

[0027] Figure 5 This is a structural diagram of the utility model after removing the fixing seat.

[0028] Explanation of the figure numbers: 1. Support seat; 101. Unwinding roller shaft 1; 102. Unwinding roller shaft 2; 2. Support rod; 201. Fixed shaft; 202. Rotating plate; 203. Torsion spring; 204. Connecting rod; 205. Laminating plate; 3. Fixed seat; 301. Film feeding roller shaft; 302. Slide groove; 303. Slide plate; 304. Contact point 1; 305. Contact point 2; 306. Heating wire. DETAILED DESCRIPTION

[0029] The present invention is described in further detail below with reference to the accompanying drawings.

[0030] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0031] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate directions or positions are based on the directions or positional relationships shown in the accompanying drawings, which are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0032] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity. Example

[0033] See also Figure 1-Figure 5 , a film splicing mechanism for polarizing plate production, comprising: a support base 1, a rotating plate 202, a contact 1 304 and a contact 2 305, the support base 1 is symmetrically provided with an unwinding roller shaft 101 and an unwinding roller shaft 2 102; the rotating plates 202 are symmetrically arranged above the support base 1, and the rotating plates 202 are rotatably connected to the connecting rods 204, and the ends of the connecting rods 204 away from the rotating plates 202 are fixedly connected to the slides 303; the contact 1 304 and the contact 2 305 are respectively provided on the two slides 303, and the opposite surfaces of the slides 303 are fixedly connected with heating wires 306. It should be supplemented that when the contact 1 304 approaches the contact 2 305, the entire machine stops unwinding to ensure that there is enough roll film for the film splicing operation.

[0034] Film material is sleeved on both unwinding roller shaft 101 and unwinding roller shaft 2 102. A heating wire 306 is electrically connected to contact 1 304 and contact 2 305. Rotating plate 202 pushes connecting rod 204, electrically connecting contact 1 304 and contact 2 305 above slide plate 303. The heating wire then activates, reconnecting the nearly finished film roll with the new one. The heating wire 306 heat-seals and then melts the two rolls, ensuring a stable connection between the old and new films.

[0035] Among them, support rods 2 are symmetrically arranged above the support base 1, and a torsion spring 203 is installed between each support rod 2 and the rotating plate 202. One end of the torsion spring 203 is fixed to the support rod 2, and the end of the torsion spring 203 away from the support rod 2 is fixed to the rotating plate 202. A fixed shaft 201 is provided on the opposing surface of each two support rods 2, and the fixed shaft 201 is rotatably connected to the rotating plate 202. The torsion spring 203 restricts the rotating plate 202, so that when the diameter of the film on the unwinding roller axis 101 or the unwinding roller axis 2 102 decreases, the rotating plate 202 can rotate accordingly, thereby gradually expanding the angle between the rotating plate 202 and the support rod 2.

[0036] Furthermore, a laminating plate 205 is fixedly connected to the upper portions of the opposing surfaces of each of the two rotating plates 202. The outer surfaces of the laminating plates 205 are attached to the film rolls on the first and second unwinding rollers 101 and 102. By laminating the film rolls on the first and second unwinding rollers 101 and 102, the laminating plates 205 ensure that when the old film roll is about to be used up, it can be quickly spliced, avoiding waste of film material while increasing splicing efficiency.

[0037] Furthermore, a fixed seat 3 is provided above the support seat 1. A film inlet and a set of rotating shafts are provided above the fixed seat 3. The rotating shafts are used to support the film roll during film change. The fixed seat 3 has two film feed rollers 301 disposed within its inner cavity. The film feed rollers 301 rotate in opposite directions and feed the film roll to the next production process.

[0038] It should be noted that the fixing base 3 is symmetrically provided with sliding grooves 302. The sliding grooves 302 are slidably connected to the slide plates 303, and the slide plates 303 and the connecting rod 204 are both located in the sliding grooves 302. The sliding grooves 302 provided on the fixing base 3 ensure that the connecting rod 204 can push the slide plates 303 along the path of the sliding grooves 302 to achieve rapid film connection.

[0039] Through the above embodiments, the working principle of the utility model is as follows:

[0040] When in use, the rotating plate 202 is toggled so that the rotating plate 202 is parallel to the support rod 2, and then the unwinding roller 101 and the unwinding roller 2 102 are conveniently filled with a new roll of film, wherein the rolls of the unwinding roller 101 and the unwinding roller 2 102 rotate in opposite directions, and then the rotating plate 202 is loosened. Under the action of the torsion spring 203, the rotating plate 202 is in contact with the roll of film, and then the roll of film is sent into the production line by the film feeding roller 301, and the roll of film of the unwinding roller 2 102 is pulled out until it is above the film feeding roller 301. At this time, the roll of film of the unwinding roller 2 102 is the replacement roll of film, and the end of the roll of film is in contact with the heating wire on the side close to the unwinding roller 2 102;

[0041] Furthermore, as the film feeding roller 301 rotates, the diameter of the film roll on the unwinding roller 101 gradually decreases. Under the force of the torsion spring 203, the angle between the support rod 2 and the rotating plate 202 gradually increases, prompting the connecting rod 204 connected to the bottom of the rotating plate 202 to move toward the side of the fixed seat 3. At this time, the connecting rod 204 pushes the slide 303 on the side of the unwinding roller 101 to slide in the slide groove 302 opened in the fixed seat 3, and gradually approaches the slide 303 on the side of the unwinding roller 2 102. At this time, the distance between the contact 1 304 and the contact 2 305 gradually decreases and fits together. When the contact 1 304 and the contact 2 305 fit together, the unwinding roller 1 01 stops the machine, and prompts the heating wire 306 to heat the roll film on the unwinding roller 101 and the unwinding roller 2 102 and then connect them together after hot melting. When the heat sealing is completed, the rotating plate 202 close to the side of the unwinding roller 101 is moved and the unwinding roller 101 is reloaded. This reciprocating process can achieve rapid film splicing operation, ensure the continuity of the production process, and reduce the time of production interruption due to film replacement. The heating wire 306 can evenly heat the new and old roll films to ensure the quality of hot melt bonding and avoid gaps or unevenness at the joints. The automated film splicing process can accurately control the use of materials and reduce material waste caused by improper manual operation.

[0042] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0043] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended only as examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. A film splicing mechanism for producing polarizing plates, characterized in that: include: A support base (1), wherein a first unwinding roller shaft (101) and a second unwinding roller shaft (102) are symmetrically arranged on the support base (1); Rotating plates (202), the rotating plates (202) are symmetrically arranged above the support seat (1), the rotating plates (202) are rotatably connected to connecting rods (204), and the ends of the connecting rods (204) away from the rotating plates (202) are fixedly connected to the slide plates (303); Contact one (304) and contact two (305), contact one (304) and contact two (305) are respectively arranged on the two slides (303), and opposite surfaces of the slides (303) are fixedly connected with heating wires (306).

2. The film splicing mechanism for producing polarizing plates according to claim 1, characterized in that: The unwinding roller shaft 1 (101) and the unwinding roller shaft 2 (102) are both covered with a roll film material, and the heating wire (306) is electrically connected to the contact point 1 (304) and the contact point 2 (305).

3. The film splicing mechanism for producing polarizing plates according to claim 2, characterized in that: Support rods (2) are symmetrically arranged above the support base (1), and a torsion spring (203) is arranged between each support rod (2) and the rotating plate (202).

4. The film splicing mechanism for producing polarizing plates according to claim 3, characterized in that: One end of the torsion spring (203) is fixed on the support rod (2), and one end of the torsion spring (203) away from the support rod (2) is fixed on the rotating plate (202).

5. The film splicing mechanism for producing polarizing plates according to claim 4, characterized in that: The opposite surfaces of each of the two support rods (2) are provided with a fixed shaft (201), and the fixed shaft (201) is rotatably connected to the rotating plate (202).

6. The film splicing mechanism for producing polarizing plates according to claim 5, characterized in that: The upper portions of the opposing surfaces of each of the two rotating plates (202) are fixedly connected with a bonding plate (205).

7. The film splicing mechanism for producing polarizing plates according to claim 6, characterized in that: The outer surfaces of the laminating plate (205) are both laminated to the roll film material of the unwinding roller shaft 1 (101) and the unwinding roller shaft 2 (102).

8. The film splicing mechanism for producing polarizing plates according to claim 1, characterized in that: A fixing seat (3) is provided above the support seat (1), and a film inlet and a set of rotating shafts are provided above the fixing seat (3).

9. The film splicing mechanism for producing polarizing plates according to claim 8, characterized in that: A film delivery roller (301) is provided in the inner cavity of the fixed seat (3), and sliding grooves (302) are symmetrically provided through the fixed seat (3).

10. The film splicing mechanism for producing polarizing plates according to claim 9, characterized in that: The sliding grooves (302) are slidably connected to the slide plates (303), and the slide plates (303) and the connecting rods (204) are both located in the sliding grooves (302).

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