Glue removing mechanism of automatic glue scraping machine and automatic glue scraping machine

Abstract

The utility model provides a glue removing mechanism of an automatic glue scraping machine and the automatic glue scraping machine. The glue removing mechanism comprises a base, a sliding block and a glue removing structure, the base has a length direction and a width direction; the sliding block is arranged on the base and moves in the length direction of the base. The glue removing structure comprises a first scraping plate and a second scraping plate, one end of the first scraping plate is arranged on the sliding block, the other end of the first scraping plate extends in the width direction of the base, and the second scraping plate is arranged outside the first scraping plate in a sleeving mode and moves in the width direction of the base so as to scrape off a glue film adhering to the first scraping plate. The technical problems that a traditional glue removing mechanism is low in glue removing efficiency, not thorough in cleaning and prone to polluting the polaroid again are solved.

Description

Technical Field

[0001] This utility model relates to the field of polarizer back-end cutting technology, and in particular to a glue removal mechanism and an automatic glue scraper. Background Technology

[0002] In the post-processing of polarizer cutting, the edges of the die-cut sheets sometimes retain slight excess pressure-sensitive adhesive, which is used to attach the polarizer to the LCD glass. This excess adhesive can contaminate the polarizer surface during stacking, leading to product defects; it can also affect the alignment accuracy and display effect in subsequent assembly processes. Traditional manual or simple mechanical scraping methods for removing this excess adhesive are inefficient, incompletely clean, and prone to re-contamination.

[0003] For example, traditional adhesive removal equipment typically uses a single scraper head with a reciprocating motion. While this can initially remove most of the excess adhesive, the adhesive's viscosity and stretchability mean that some adhesive remains on the scraper head as it completes a scraping motion and returns to its original position, forming an adhesive film between the polarizer and the scraper head. Furthermore, when the scraper head returns to its starting point for the next scraping operation, the remaining adhesive may redeposit on the polarizer, forming a new adhesive film, or cause unnecessary contact between the scraper head and the polarizer. This not only fails to achieve the desired adhesive removal effect but also increases the workload of subsequent manual cleaning, reducing production efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an adhesive removal mechanism and an automatic adhesive removal machine for an automatic adhesive scraper, thereby solving the technical problems of low adhesive removal efficiency, incomplete cleaning, and easy re-contamination of polarizers by traditional adhesive removal mechanisms in related technologies.

[0005] This utility model provides a glue removal mechanism for an automatic glue scraper, comprising:

[0006] The base has a length direction and a width direction;

[0007] A slider is disposed on the base and moves along its length.

[0008] The adhesive removal structure includes a first scraper and a second scraper. One end of the first scraper is disposed on the slider, and the other end extends in the width direction of the base. The second scraper is sleeved on the first scraper and moves along the width direction of the base to scrape off the adhesive film adhering to the first scraper.

[0009] Furthermore, the slider is provided with a mounting groove, and a rotating shaft passes through the mounting groove. The rotating shaft can rotate in both directions relative to the slider, and the first scraper is fixed to the rotating shaft.

[0010] Furthermore, the slider is provided with a meshing drive gear and a driven gear, the drive gear being rotatably mounted on the slider, and the driven gear being coaxially connected to the rotating shaft.

[0011] Furthermore, the drive gear is provided with a first handle.

[0012] Furthermore, along the length of the base, the first scraper has two first inclined surfaces, the high ends of the two first inclined surfaces converge at the top of the first scraper, and the low ends of the two surfaces extend toward the bottom of the first scraper.

[0013] Furthermore, the cross-section of the first scraper is a triangular structure.

[0014] Furthermore, the second scraper has a scraping nozzle, and two second inclined surfaces are provided on the inner wall of the scraping nozzle. The two second inclined surfaces are arranged in a one-to-one correspondence with the two first inclined surfaces and are in contact with each other.

[0015] Furthermore, the second scraper is provided with a second handle.

[0016] Furthermore, the base has a groove formed along its length, and at least a portion of the slider is slidably embedded in the groove.

[0017] This utility model also provides an automatic glue scraping machine, including the glue removal mechanism described above.

[0018] Compared with the prior art, this utility model has the following beneficial effects: By setting the first scraper at the slider, the slider drives the first scraper to make a linear reciprocating motion along the length of the base, thereby approaching or moving away from the polarizer. During this process, the adhesive film formed between the scraper head and the polarizer due to the scraper head resetting can be scraped off, so that the adhesive film can adhere to the first scraper and be carried away from the polarizer and the scraper head during its movement. This prevents the adhesive film from contacting the polarizer again with the scraper head, thereby improving the adhesive removal efficiency, ensuring the cleanliness of the polarizer, and avoiding re-contamination. Furthermore, the second scraper can make a linear reciprocating motion along the width of the base outside the first scraper, so as to remove the excess adhesive remaining on the first scraper, ensuring that the first scraper remains clean after each scraping, thereby improving the adhesive removal efficiency and quality, reducing manual intervention, and improving the adhesive removal efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the adhesive removal mechanism in one embodiment of the present invention;

[0020] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0021] Figure 3 This is a partial structural schematic diagram of an automatic glue scraper according to one embodiment of the present invention.

[0022] Explanation of icon numbers:

[0023] 1. Base; 101. Slide groove; 2. Slider; 201. Mounting groove; 3. First scraper; 301. First inclined surface; 4. Second scraper; 401. Glue scraping nozzle; 402. Second inclined surface; 5. Rotating shaft; 6. Drive gear; 7. Driven gear; 8. First handle; 9. Second handle; 10. Glue removal mechanism.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the technical solutions of this utility model are further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0026] In the embodiments of this utility model, such as Figures 1-2 As shown, the adhesive removal mechanism 10 of the automatic adhesive scraper includes: a base 1, a slider 2, and an adhesive removal structure; the base 1 has a length direction and a width direction; the slider 2 is disposed on the base 1 and moves along its length direction; the adhesive removal structure includes a first scraper 3 and a second scraper 4, one end of the first scraper 3 is disposed on the slider 2, and the other end extends towards the width direction of the base 1; the second scraper 4 is sleeved outside the first scraper 3 and moves along the width direction of the base 1 to scrape off the adhesive film adhering to the first scraper 3.

[0027] Specifically, in this embodiment of the invention, the base 1 serves as the main load-bearing component, having both a length direction and a width direction. The slider 2 is slidably disposed on the base 1, allowing it to slide along the length direction of the base 1 under external force. The base 1 is equipped with a driving structure to drive the slider 2 to perform linear reciprocating motion along the length direction of the base 1. This driving structure can be a cylinder, a hydraulic cylinder, or a gear and rack structure. Furthermore, to install the driving structure at the corresponding position on the base 1 and to enable linkage with the slider 2, a mounting seat is provided at both ends of the base 1, and the mounting seats form a mounting notch for installing the driving structure.

[0028] In this embodiment of the invention, the adhesive removal structure includes a first scraper 3 and a second scraper 4. The first scraper 3 is disposed at the slider 2 and moves with the slider 2. When the first scraper 3 moves, it can scrape off the adhesive film formed between the polarizer and the scraper head (i.e., the overflow adhesive, due to its own viscosity and stretchability, has one end still attached to the polarizer (or the overflow adhesive is retained on the worktable supporting / positioning the polarizer due to the push of the scraper head), while the other end moves away from the polarizer with the scraper head to form a stretched honeycomb overflow adhesive, which is then considered an adhesive film). On the other hand, the first scraper 3 can also carry away the adhesive film, separating it from the polarizer and the scraper head, so as to completely remove the overflow adhesive from the polarizer and / or the scraper head without secondary cleaning, thus improving efficiency. Of course, if no adhesive film is formed, but there is residual adhesive on the surface of the scraper head, the first scraper 3 can also scrape off the residual adhesive on the scraper head during the movement, thus ensuring the cleanliness of the scraper head. Therefore, the length of the first scraper 3 can be customized according to actual needs, or at least one first scraper 3 can be added at the slider 2. Multiple first scrapers 3 can work together to complete the glue removal operation in one go. In addition, the sliding of the first scraper 3 can make it approach or move away from the polarizer. The place where the polarizer is placed is the glue removal working area, and the area outside is the standby area. The first scraper 3 can move back and forth between the glue removal working area and the standby area, which not only facilitates the picking and placing of the polarizer, but also does not interfere with the operation of the scraper head.

[0029] Furthermore, after multiple adhesive removal processes, the surface of the first scraper 3 will have excess adhesive (layer). To quickly remove this excess adhesive, a second scraper 4 is slidably fitted onto the outer surface of the first scraper 3. Under external force, the second scraper 4 can slide back and forth along the width direction of the base 1. One or more slides of the second scraper 4 can clean the excess adhesive on the first scraper 3. At the same time, to prevent the second scraper 4 from slipping off the first scraper 3, one end of the first scraper 3 can be installed at the slider 2, and the other end can be provided with a corresponding limiting structure, such as a stop or protrusion. This limiting structure can not only restrict the movement path of the second scraper 4, but also be used as a scraper block to remove excess adhesive from the scraper head.

[0030] This embodiment, through the cooperation of the first scraper 3 and the second scraper 4, not only improves the cleanliness and efficiency of the adhesive removal process, but also reduces manual intervention.

[0031] like Figure 2As shown, in one embodiment, the slider 2 is provided with a mounting groove 201, and a rotating shaft 5 passes through the mounting groove 201. The rotating shaft 5 can rotate forward and backward relative to the slider 2, and the first scraper 3 is fixed to the rotating shaft 5. In order to install the first scraper 3 on the slider 2 and allow it to rotate relative to the slider 2, this embodiment provides a mounting groove 201 on the surface of the slider 2. The rotating shaft 5 is rotatably disposed in the mounting groove 201, and the end of the first scraper 3 is fixed to the rotating shaft 5. The tilt angle of the first scraper 3 relative to the slider 2 is adjusted by using the rotation angle of the rotating shaft 5, so as to flexibly adjust the angle of the first scraper 3 to achieve the best glue removal effect.

[0032] Furthermore, such as Figure 2 As shown, in one embodiment, the slider 2 is provided with a meshing drive gear 6 and a driven gear 7. The drive gear 6 is rotatably mounted on the slider 2, and the driven gear 7 is coaxially connected to the rotating shaft 5. Specifically, to make the rotation angle of the rotating shaft 5 controllable, this embodiment provides a meshing drive gear 6 and a driven gear 7 at the slider 2. The drive gear 6 rotates under the action of an external force on the slider 2, thereby driving the rotating shaft 5 to rotate through the driven gear 7, allowing it to stop at any angle. Alternatively, when the first scraper 3 encounters relatively large resistance during rotation, its slight rotation disperses the pressure, preventing the scraper from bending or breaking due to excessive force, and also reducing the risk of scratching the polarizer surface. In this case, the roles of the drive gear 6 and the driven gear 7 are reversed. Their meshing ensures that the driven gear 7 rotates only slightly with the cooperation of the drive gear 6, giving the first scraper 3 a certain degree of automatic compensation capability. It can maintain a good working condition even after long-term operation without frequent manual intervention for calibration or adjustment. Preferably, the drive gear 6 is provided with a first handle 8, which facilitates manual rotation of the drive gear 6 after gripping it. Alternatively, an angle line can be set at a corresponding position to quickly determine whether there is abnormal rotation of the first scraper 3 based on the direction of the first handle 8.

[0033] like Figure 1As shown, in one embodiment, along the length of the base 1, the first scraper 3 has two first inclined surfaces 301. The high ends of the two first inclined surfaces 301 converge at the top of the first scraper 3, and their low ends extend towards the bottom of the first scraper 3. Specifically, to improve the adhesive removal efficiency and cleanliness, this embodiment provides two inclined surfaces on the surface of the first scraper 3, with the high ends of the two inclined surfaces connected and their low ends extending towards the bottom of the first scraper 3. This creates a sharp edge or linear contact point when the first scraper 3 contacts the adhesive film, concentrating pressure at a single point for more effective cutting and removal of excess adhesive. Simultaneously, the first scraper 3 can better adapt to excess adhesive of varying thicknesses and uneven distribution, ensuring effective treatment regardless of whether the excess adhesive is thin or locally thick. Furthermore, the presence of two inclined surfaces allows the first scraper 3 to form two scraping surfaces. Additionally, the slider 2 slides with the first scraper 3, and the scraped excess adhesive either adheres to the corresponding inclined surface or is carried away by the first scraper 3 due to inertia. Preferably, the cross-section of the first scraper 3 is a triangular structure.

[0034] like Figure 2 As shown, in one embodiment, the second scraper 4 has a scraping opening 401, and two second inclined surfaces 402 are provided on the inner wall of the scraping opening 401. The two second inclined surfaces 402 are correspondingly arranged with the two first inclined surfaces 301 and are in contact with each other. Specifically, in order to install the second scraper 4 outside the first scraper 3, a scraping opening 401 is provided in the middle of the second scraper 4, through which the first scraper 3 can pass; in order to adapt to the first inclined surface 301, two corresponding second inclined surfaces 402 are provided on the inner wall of the scraping opening 401, so that the first inclined surface 301 and the second inclined surface 402 are in surface-to-line contact, so as to quickly remove the excess glue on the first scraper 3. Preferably, the second scraper 4 is provided with a second handle 9, which makes it easy to manually push the second scraper 4 to scrape off the excess glue after holding the second handle 9.

[0035] like Figure 1 As shown, in one embodiment, the base 1 has a groove 101 formed along its length, and at least a portion of the slider 2 is slidably embedded in the groove 101. Specifically, in order to increase the contact area between the base 1 and the slider 2 and improve the stability of the slider 2, this embodiment provides a groove 101 on the base 1, in which a portion of the slider 2 is slidably embedded, while the other portion can serve as an installation area for the installation of a series of components such as the drive structure and the rotating shaft 5; at the same time, the groove 101 can also constrain the sliding path of the slider 2, thus playing a guiding role.

[0036] like Figure 3As shown, this embodiment also provides an automatic glue scraping machine, including the glue removal mechanism 10 described above. The specific structure of the glue removal mechanism 10 is as described in the above embodiment. Since this automatic glue scraping machine adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A glue removal mechanism for an automatic glue scraper, characterized in that, include: The base has a length direction and a width direction; A slider is disposed on the base and moves along its length. The adhesive removal structure includes a first scraper and a second scraper. One end of the first scraper is disposed on the slider, and the other end extends in the width direction of the base. The second scraper is sleeved on the first scraper and moves along the width direction of the base to scrape off the adhesive film adhering to the first scraper.

2. The adhesive removal mechanism of an automatic glue scraper as described in claim 1, characterized in that, The slider is provided with a mounting groove, and a rotating shaft passes through the mounting groove. The rotating shaft can rotate in both directions relative to the slider, and the first scraper is fixed to the rotating shaft.

3. The glue removal mechanism of an automatic glue scraper as described in claim 2, characterized in that, The slider is provided with a meshing drive gear and a driven gear. The drive gear is rotatably mounted on the slider, and the driven gear is coaxially connected to the rotating shaft.

4. The glue removal mechanism of an automatic glue scraper as described in claim 3, characterized in that, The drive gear is provided with a first grip.

5. The adhesive removal mechanism of an automatic glue scraper as described in any one of claims 1-4, characterized in that, Along the length of the base, the first scraper has two first inclined surfaces, the high ends of the two first inclined surfaces converge at the top of the first scraper, and the low ends of the two surfaces extend toward the bottom of the first scraper.

6. The glue removal mechanism of an automatic glue scraper as described in claim 5, characterized in that, The first scraper has a triangular cross-section.

7. The glue removal mechanism of an automatic glue scraper as described in claim 5, characterized in that, The second scraper has a scraping nozzle, and two second inclined surfaces are provided on the inner wall of the scraping nozzle. The two second inclined surfaces are arranged in a one-to-one correspondence with the two first inclined surfaces and are in contact with each other.

8. The adhesive removal mechanism of an automatic glue scraper as described in claim 1, characterized in that, The second scraper is provided with a second handle.

9. The glue removal mechanism of an automatic glue scraper as described in claim 1, characterized in that, The base has a groove formed along its length, and at least part of the slider is slidably embedded in the groove.

10. An automatic glue-applying machine, characterized in that, Includes the adhesive removal mechanism as described in any one of claims 1-9.

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