Printed matter sticking tool

Abstract

The application relates to the product manufacturing technical field, in particular to a printed matter sticking tool. The tool comprises a top cover, a scraping piece and a spring. At least one mounting column is arranged on the end surface of the top cover. The scraping piece is used for scraping and pressing the printed matter. A cavity is arranged on the scraping piece, and the inner side wall of the cavity is in sliding connection with the side wall of the top cover. The spring is sleeved on the mounting column, one end of the spring is in abutment with the top cover, and the other end is in abutment with the scraping piece. The limiting buckle of the side wall of the top cover is in sliding connection with the clamping groove of the side wall of the cavity of the scraping piece, the inner side wall of the cavity is in sliding connection with the side wall of the top cover, the spring is positioned through the mounting column, the spring is sleeved on the mounting column and abuts against the top cover and the scraping piece at two ends, the mounting column can effectively prevent the spring from being dislocated during compression and rebounding, the spring pressure can be accurately transmitted to the scraping piece, and a structural foundation is laid for stable output of subsequent scraping pressure.

Description

Technical Field

[0001] This application relates to the field of product manufacturing technology, and in particular to a printing adhesive tooling. Background Technology

[0002] In industrial manufacturing, especially in the home appliance and electronics industries, it is often necessary to affix printed materials such as nameplates, model labels, and decorative films to product surfaces. The reliability of this affixing operation directly affects the product's aesthetics, the durability of information readability, and the final perceived quality. To ensure a firm and bubble-free adhesion, it is usually necessary to apply moderate and even pressure to the printed surface after affixing.

[0003] Currently, the mainstream operation method on production lines relies on manual scraping using simple squeegees or squeegees. After aligning the printed material, the operator holds a plastic or metal squeegee and, based on personal experience, scrapes the surface of the printed material to remove air and ensure full contact between the adhesive and the product surface. While some existing technologies attempt to improve the squeegee tools, they still fundamentally rely on manual force application.

[0004] The existing operating methods described above have significant drawbacks. When manually using a squeegee, the squeegee angle and force depend entirely on the operator's personal experience and habits. The operating parameters vary between different personnel, and even between different times of operation for the same person. This makes it impossible to achieve quantitative control of the squeegee force, resulting in inconsistent adhesive strength of the printed materials. Consequently, problems such as weak adhesion and air bubbles may occur, affecting the reliability of the adhesive application. Utility Model Content

[0005] This application provides a printing paste pasting fixture, the purpose of which is to solve the reliability problem of existing manual pasting.

[0006] To achieve the above objectives, this application adopts the following technical solution: The first aspect provides a printing paste pasting fixture, comprising: The top cover has at least one mounting post on one end face and a limit buckle on the side wall of the top cover. A scraping and pressing component, wherein the upper cover is inserted into the scraping and pressing component, and the scraping and pressing surface on the scraping and pressing component is used to scrape and press the printed matter; the scraping and pressing component has the following openings: A cavity, the inner wall of which is slidably connected to the side wall of the upper cover; The slot is formed on the side wall of the cavity, and the slot slides with the limiting buckle, so that the upper cover moves relative to the scraping member along the length of the slot; A spring is sleeved on the mounting post, with one end of the spring abutting against the inner wall of the upper cover and the other end abutting against the inner wall of the cavity. The spring is used to generate elastic deformation when the upper cover moves relative to the scraping member along the length of the slot, and to drive the scraping member to apply scraping pressure to the printed matter through elastic force.

[0007] In the above embodiments, the limiting buckle on the side wall of the cover slides in conjunction with the slot on the side wall of the scraping component cavity. At the same time, the inner side wall of the cavity slides in connection with the side wall of the cover. The sliding limiting structure can restrict the movement direction of the cover relative to the scraping component, only along the length direction of the slot, to avoid lateral displacement or tilting of the cover, and to ensure a stable force transmission path. In addition, the spring is positioned by the mounting post. The spring is sleeved on the mounting post, with its two ends abutting against the cover and the scraping component respectively. The mounting post can effectively prevent the spring from being misaligned or shifted during compression and rebound, ensuring that the spring pressure can be accurately transmitted to the scraping component, laying a structural foundation for the stable output of subsequent scraping pressure.

[0008] Based on the elastic properties of springs, the compression of the spring is linearly related to the output pressure. The sliding fit structure allows the compression action of the upper cover on the spring to be smooth and controllable. This structure can indirectly control the scraping pressure of the scraping component by controlling the movement distance of the upper cover, i.e., the spring compression, avoiding pressure fluctuations caused by differences in manual operation. It can stabilize within a reasonable scraping pressure range, ensuring full contact of the adhesive and effective expulsion of air bubbles when pasting printed materials, thus improving the reliability of pasting.

[0009] Depending on the production scenario or component testing, springs with different stiffness coefficients can be replaced, or the total pressure can be adjusted by increasing or decreasing the number of springs on the mounting column. No major modifications to the overall tooling structure are required, which can meet diverse bonding pressure requirements and has stronger adaptability.

[0010] In some embodiments of this application, the scraping component includes an integrally formed main frame, and the scraping surface is formed at the bottom of the main frame; the main frame is provided with mounting holes to provide movement space for the mounting column.

[0011] In the above embodiments, the integral molding structure of this application can eliminate the splicing gap between the main frame and the scraping surface, avoiding the problems of component misalignment and deformation during scraping caused by loose assembly. When the spring pressure is transmitted to the main frame, the integral structure can evenly transmit the force to the entire scraping surface, avoiding air bubble residue or local poor adhesion caused by insufficient local pressure.

[0012] The mounting holes provide space for the mounting post to move, accommodating its axial expansion and contraction as the top cover moves, thus preventing mechanical interference between the mounting post and the main frame. This space provision ensures unimpeded relative sliding between the top cover and the scraping component, allowing the spring to deform stably according to Hooke's Law, thereby guaranteeing a reliable linear correlation between scraping pressure and compression.

[0013] In some embodiments of this application, the direction of the scraping surface is set to form a certain angle relative to the sliding direction of the limiting buckle and the slot, wherein the angle is greater than or equal to 30 degrees, and / or the angle is less than or equal to 50 degrees.

[0014] In the above embodiments, the angle θ between the squeegee surface and the sliding direction directly affects the calculation of the effective squeegee pressure. When θ is in the range of 30 to 50 degrees, if the angle is too small, a larger spring force is required to achieve the effective squeegee pressure, which can easily lead to excessive spring compression; if the angle is too large, a smaller spring force can generate excessive squeegee pressure, which may damage the printed material or product surface. This angle range, through mechanical adaptation, ensures a stable and reliable linear correlation between the spring force and the effective squeegee pressure, meeting the adhesion force requirements of different printed materials.

[0015] The key to successful printing adhesive bonding is removing air bubbles between the adhesive and the product surface, and angled scraping facilitates the gradual removal of these bubbles along the scraping direction. An angle design of 30 to 50 degrees creates an angled pushing effect when the scraping surface contacts the printed material. An angle that is too small can result in an excessively large contact area between the scraping surface and the printed material, obstructing the bubble removal path; an angle that is too large can cause the edges of the scraping surface to cut the adhesive, creating new bubbles. This angle range balances the contact area and the pushing force, allowing air bubbles to be removed during the scraping process, ensuring full adhesion between the adhesive and the product surface, and solving the problems of residual air bubbles and weak adhesion caused by random scraping angles during manual scraping.

[0016] When operators on the production line are scraping, their hands naturally tend to apply force at an angle. An angle of 30 to 50 degrees aligns the direction of force on the scraping surface with the body's natural force application habits. This allows operators to more smoothly convert the force applied through their hands into the scraping motion, reducing the extra force required due to directional deviations. This design reduces hand fatigue from repetitive operations, improves production line efficiency, minimizes scraping angle deviations caused by awkward operation, and ensures consistent scraping quality.

[0017] In some embodiments of this application, the scraping surface is set as a plane for scraping the flat pasting area of ​​the printed material.

[0018] In the above embodiments, this application addresses scenarios involving flat printed materials or flat adhesive areas of products. The flat squeegee surface can adhere to the surface of the printed material, ensuring maximum contact area and uniform pressure distribution during squeegeeing. Compared to the potential issues of concentrated edge pressure and insufficient central pressure that may occur with non-flat squeegee surfaces during flat adhesive application, the flat design allows the pressure transmitted by the spring to be evenly applied to the entire area of ​​the printed material through the squeegee surface, effectively avoiding localized air bubble residue or insufficient adhesive adhesion.

[0019] In some embodiments of this application, the scraping surface is configured as an arc-shaped surface, and the opening direction of the arc-shaped surface is directed away from the upper cover.

[0020] In the above embodiments, the curved adhesive area can be scraped and pressed. During scraping, the curved surface first contacts one end of the printed material, and gradually covers the entire adhesive area as the operation progresses, with pressure evenly transmitted along the curved trajectory. Compared with point-contact scraping on a curved surface, this method can more efficiently remove air bubbles between the adhesive and the curved substrate. The air bubbles can naturally converge and be discharged along the direction of the curved contact, avoiding air bubble residue caused by uneven contact. At the same time, the uniform pressure transmission ensures that the adhesive fully adheres to the curved surface, solving the problems of poor adhesion and edge lifting when manually scraping curved areas.

[0021] In some embodiments of this application, there are multiple mounting posts, and each mounting post can be independently fitted with a spring; the stiffness coefficient and / or free length of the multiple springs may be the same or different.

[0022] In the above embodiments, the multiple mounting posts of this application are evenly distributed. Combined with the synchronized action of the springs, the force applied by the top cover can be evenly transmitted to the entire area of ​​the squeegee through multiple sets of springs, avoiding pressure deviation on the squeegee surface caused by concentrated force on a single spring. Even if a single spring has a slight stiffness error, the combination of multiple springs can offset the deviation through the superposition of forces, ensuring consistent pressure distribution when the squeegee surface contacts the printed material. This solves the problem of insufficient local pressure leading to air bubble residue or uneven pressure causing the adhesive to peel off.

[0023] By combining springs with different stiffness coefficients, the overall spring stiffness can be adjusted to match the scraping pressure within the normal range of 30N-80N and the required specific force value; combinations of springs with different free lengths can be adapted to printed materials of different thicknesses or special pasting processes, achieving multiple adjustments to the pressure.

[0024] No modifications to the main tooling structure are required; different pressure modes can be quickly switched simply by replacing or combining springs with different parameters. Low-stiffness springs are used when producing thin printed materials, while high-stiffness springs are used when high-precision force values ​​are required for experiments. This reduces the development costs of dedicated tooling for different products and processes, and shortens production line changeover time.

[0025] In some embodiments of this application, the scraping member is provided with scale markings, which are used to indicate the displacement of the upper cover relative to the scraping member, in relation to the compression of the spring.

[0026] In the above embodiments, the scale markings of this application convert the relative displacement (i.e., spring compression) between the upper cover and the scraping component into an intuitive visual signal. Operators can directly read the compression amount through the scale and then quickly calculate the actual scraping pressure by combining it with the spring stiffness parameters. This changes the problem of manual scraping pressure relying on feel and the inability to quantify the pressure, enabling scraping pressure control to shift from experience-based judgment to data-driven operation, meeting the process requirements of 30N-80N.

[0027] The graduated markings provide a unified operating standard. For a specific type of printed material, the process documentation can clearly specify compression to the 3mm mark, avoiding deviations in compression due to differences in individual experience. Standardized operation ensures a high degree of consistency in the adhesion of printed materials within the same batch or even across different batches, reducing quality fluctuations such as partial adhesion and partial peeling caused by uneven pressure.

[0028] In some embodiments of this application, the upper cover is further provided with a handle, the handle comprising: First connecting rod; The second connecting rod has one end connected to the first connecting rod and the other end connected to the top cover.

[0029] In the above embodiments, the handle design of this application provides a gripping platform for the operator. The first connecting rod serves as a grip section, adapting to the natural gripping posture of the hand and avoiding instability caused by the lack of a dedicated force application point when directly grasping the top cover. The second connecting rod, through the structure connecting the first connecting rod and the top cover, rationally connects the force application point of the hand with the force receiving point of the top cover, reducing hand discomfort during operation. Especially in repetitive scraping operations on the production line, it reduces operator hand fatigue and improves work efficiency.

[0030] In some embodiments of this application, at least one of the second connecting rods is connected to the middle of one end face of the upper cover to provide stable scraping pressure to the middle of the tooling.

[0031] In the above embodiments, the central part of one end face of the top cover is a key area for force balance. Connecting at least one second connecting rod to this position allows the force applied by the operator through the handle to act directly on the center of force on the top cover, avoiding the problem of unilateral tilting of the top cover due to the second connecting rod being connected to the edge. The centered force transmission design ensures smooth movement of the top cover along the length of the slot, providing a foundation for uniform spring compression and stable scraping pressure output.

[0032] The centrally connected second connecting rod provides operators with a more stable force guidance. When the operator holds the handle, the central force transmission reduces the risk of lateral misalignment of the top cover caused by slight hand force deviation, ensuring that the squeegee surface of the squeegee is always stably attached to the printed surface. This avoids problems such as incomplete squeegee application due to top cover misalignment, which can lead to air bubbles, poor edge adhesion, and other issues. It also reduces the impact of human error on adhesion quality and improves the consistency of production line operations.

[0033] The second aspect provides a printing paste pasting fixture, including: The top cover has at least one mounting post on one end face, a limiting step on the mounting post, and a limiting buckle on the side wall of the top cover. A scraping and pressing component, wherein the upper cover is inserted into the scraping and pressing component, and the scraping and pressing surface on the scraping and pressing component is used to scrape and press the printed matter; the scraping and pressing component has the following openings: A cavity, the inner wall of which is slidably connected to the side wall of the upper cover; The slot is formed on the side wall of the cavity, and the slot slides with the limiting buckle, so that the upper cover moves relative to the scraping member along the length of the slot; A spring is sleeved on the mounting post, with one end of the spring abutting against the limiting step and the other end abutting against the inner wall of the cavity. The spring is used to generate elastic deformation when the upper cover moves relative to the scraping member along the length of the slot, and to drive the scraping member to apply scraping pressure to the printed matter through elastic force. The mounting post is threadedly connected to the top cover; by screwing the mounting post to adjust its length extending out of the top cover, the pre-compression of the spring is changed.

[0034] In the above embodiments, this application uses a threaded connection between the mounting post and the top cover, allowing the operator to adjust the length of the mounting post extending beyond the top cover by screwing it on. When the mounting post extends further, the limiting step moves towards the scraping element, compressing the spring; conversely, the pre-compression decreases. This adjustment directly changes the initial spring force, and compared to structures where pre-compression cannot be adjusted, it can adapt to printed materials of different thicknesses and materials, solving the problem that a single pre-compression amount is insufficient to cover diverse adhesive needs.

[0035] The design of the limiting step provides an axial positioning point for the spring. One end of the spring abuts against the limiting step, and the other end abuts against the scraping element, allowing the adjustment of the pre-compression amount to act directly on the spring. This avoids force transmission deviations that might occur due to deformation of the top cover when the spring is in direct contact with the top cover. The helical feed characteristic of the threaded connection allows for fine-tuning of the pre-compression amount, thereby controlling the adjustment accuracy of the pre-tightening force within the range of 1-2N. This meets the requirements for specific force values ​​in experimental bonding scenarios and ensures that the initial scraping pressure of different batches of printed materials is highly consistent during production, reducing quality fluctuations.

[0036] No spring replacement is required; the precompression can be adjusted simply by turning the mounting post, enabling rapid switching of scraping pressure. This avoids the cost of customizing multiple spring sets for different force requirements, reduces the number of steps involved in changing springs during production line changes, improves tooling adaptability, and is suitable for small-batch, multi-variety production scenarios.

[0037] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the overall structure of the printing paste pasting fixture in this application; Figure 2 This is a schematic diagram of the overall structure of the printing paste pasting fixture with an arc-shaped scraping surface in this application; Figure 3 This is a schematic diagram of the scraping component structure of the printing paste pasting fixture in this application; Figure 4 This is a schematic diagram of the upper cover structure of the printing adhesive fixture of this application; Figure 5 This is a schematic diagram of the arc-shaped scraping component structure of the printing paste pasting fixture of this application; Figure 6 This is a schematic diagram of the planar scraping component structure of the printing paste pasting fixture of this application; Figure 7 This is a front view of the printing attachment fixture of this application; Figure 8 This is the printing adhesive tooling for this application. Figure 7 A sectional view; Figure 9 This is a front view of the tooling with an arc-shaped scraping surface for pasting printed materials in this application; Figure 10 This is the printing adhesive tooling for this application. Figure 9 A sectional view.

[0040] In the above figures: 1. Top cover; 11. Mounting post; 111. Limiting step; 12. Limiting buckle; 13. Handle; 131. First connecting rod; 132. Second connecting rod; 2. Scraping component; 21. Cavity; 22. Slot; 23. Mounting hole; 24. Main frame; 25. Scraping surface; 26. Scale markings; 3. Spring. Detailed Implementation

[0041] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this application.

[0042] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] Additionally, if the meaning of "and / or" in the text is that it includes three parallel options, taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0046] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0047] It should be noted that in the industrial manufacturing sector, especially in industries such as home appliances and electronics, it is often necessary to affix printed materials such as nameplates, model labels, and decorative films to product surfaces. The reliability of this affixing operation directly affects the product's aesthetics, the durability of information readability, and the final perceived quality. To ensure a firm and bubble-free adhesion, it is usually necessary to apply moderate and even pressure to the printed surface after affixing.

[0048] Currently, the mainstream operation method on production lines relies on manual scraping using simple squeegees or squeegees. After aligning the printed material, the operator holds a plastic or metal squeegee and, based on personal experience, scrapes the surface of the printed material to remove air and ensure full contact between the adhesive and the product surface. While some existing technologies attempt to improve the squeegee tools, they still fundamentally rely on manual force application.

[0049] The existing operating methods described above have significant drawbacks. When manually using a squeegee, the squeegee angle and force depend entirely on the operator's personal experience and habits. The operating parameters vary between different personnel, and even between different times of operation for the same person. This makes it impossible to achieve quantitative control of the squeegee force, resulting in inconsistent adhesive strength of the printed materials. Consequently, problems such as weak adhesion and air bubbles may occur, affecting the reliability of the adhesive application.

[0050] Based on this, this application proposes a printing material pasting fixture, which includes a top cover with a limiting buckle and a mounting post, a scraping component with a cavity, a slot and scale markings, and a spring sleeved on the mounting post. The spring can adjust the pre-compression amount by turning the mounting post, and supports a structure that combines multiple springs with different stiffnesses and free lengths. This achieves quantitative and precise control of scraping pressure, stable and uniform pasting quality, and adaptability of the fixture to various scenarios. It solves the problems of loose pasting, large quality fluctuations, and high fixture adaptation costs caused by random manual scraping angles and forces, unquantifiable pressure, and poor adaptability in the prior art.

[0051] In the following, embodiments of this application will be described in detail with reference to the accompanying drawings.

[0052] As attached Figures 1 to 10As shown, a first aspect provides a printing adhesive fixture, including a top cover 1, a scraper 2, and a spring 3. At least one mounting post 11 is provided on one end face of the top cover 1; the scraper 2 is used to scrape the printed material; a cavity 21 is formed on the scraper 2, and the inner wall of the cavity 21 is slidably connected to the side wall of the top cover 1. The spring 3 is sleeved on the mounting post 11, with one end of the spring 3 abutting against the inner wall of the top cover 1 and the other end abutting against the inner wall of the cavity of the scraper 2. The spring 3 is used to generate elastic deformation when the top cover 1 moves relative to the scraper 2 along the length of the slot, thereby driving the scraper 2 to apply scraping pressure to the printed material through elastic force.

[0053] Through the above scheme, the limiting buckle 12 on the side wall of the upper cover 1 of this application slides and engages with the slot 22 on the side wall of the cavity 21 of the scraping component 2. At the same time, the inner side wall of the cavity 21 slides and connects with the side wall of the upper cover 1. The spring 3 is positioned by the mounting post 11. The spring 3 is sleeved on the mounting post 11, and its two ends abut against the upper cover 1 and the scraping component 2 respectively. The mounting post 11 can effectively prevent the spring 3 from being misaligned or shifted during compression and rebound, ensuring that the pressure of the spring 3 can be accurately transmitted to the scraping component 2, laying a structural foundation for the stable output of subsequent scraping pressure.

[0054] It should be noted that, based on the elastic characteristics of spring 3, the compression of spring 3 is linearly related to the output pressure, and the sliding fit structure can make the compression action of the upper cover 1 on spring 3 smooth and controllable; this structure can indirectly control the scraping pressure of the scraping component 2 by controlling the moving distance of the upper cover 1, i.e. the compression of spring 3, avoiding pressure fluctuations caused by differences in manual operation, and can stabilize within a reasonable scraping pressure range, ensuring that the adhesive backing makes full contact and air bubbles are effectively discharged when the printed material is pasted, thus improving the reliability of pasting.

[0055] In addition, depending on the production scenario or component experiment, springs 3 with different stiffness coefficients can be replaced, or the total pressure can be adjusted by increasing or decreasing the number of springs 3 on the mounting column 11. No major modifications to the overall structure of the tooling are required, which can meet diverse bonding pressure requirements and has stronger adaptability.

[0056] In some embodiments, the side wall of the top cover 1 is provided with a limiting buckle 12, and the printing adhesive fixture also includes a slot 22. The slot 22 is formed on the side wall of the cavity 21, and the slot 22 slides with the limiting buckle 12, so that the top cover 1 moves relative to the scraping member 2 along the length direction of the slot 22. The length of the slot 22 can limit the movement distance of the top cover 1 within the slot 22. The sliding limiting structure can limit the movement direction of the top cover 1 relative to the scraping member 2, only along the length direction of the slot 22, to avoid lateral displacement or tilting of the top cover 1, and to ensure a stable force transmission path.

[0057] In some embodiments, the printing paste pasting fixture further includes a mounting hole 23, which is disposed on the bottom wall of the cavity 21 to provide movement space for the mounting post 11.

[0058] In some embodiments, the top cover 1 is further provided with a handle 13, which includes a first connecting rod 131 and a second connecting rod 132: one end of the second connecting rod 132 is connected to the first connecting rod 131, and the other end is connected to the top cover 1. The handle 13 of this application is designed to provide a gripping carrier for the operator. The first connecting rod 131 can serve as a grip section, adapting to the natural gripping posture of the hand, avoiding unstable grip caused by the lack of a dedicated force application point when directly grasping the top cover 1; the second connecting rod 132, through the structure connecting the first connecting rod 131 and the top cover 1, reasonably connects the force application point of the hand with the force receiving point of the top cover 1, providing a force transmission path and reducing hand discomfort during operation. Especially in repetitive scraping operations on the production line, it reduces operator hand fatigue and improves work efficiency.

[0059] In some embodiments, at least one second connecting rod 132 is connected to the center of one end face of the upper cover 1 to provide stable scraping pressure to the center of the tooling. The center of one end face of the upper cover 1 is a key area for force balance. Connecting at least one second connecting rod 132 to this position allows the force applied by the operator through the handle 13 to act directly on the force center of the upper cover 1, avoiding the problem of unilateral tilting of the upper cover 1 due to the second connecting rod 132 being connected to the edge. The central force transmission design ensures that the upper cover 1 moves smoothly along the length of the slot 22, providing a basis for the uniform compression of the spring 3 and the stable output of scraping pressure.

[0060] In addition, the centrally connected second connecting rod 132 provides a more stable force guide for the operator. When the operator holds the handle 13, the central force transmission reduces the risk of lateral misalignment of the upper cover 1 caused by slight deviation of the hand force, ensuring that the scraping surface 25 of the scraping component 2 always stably adheres to the surface of the printed material. This avoids problems such as incomplete scraping due to the offset of the upper cover 1, resulting in air bubbles and poor edge adhesion, reducing the impact of human operation errors on the adhesion quality, and improving the consistency of production line operations.

[0061] In some embodiments, two second connecting rods 132 are disposed at both ends of the first connecting rod 131, and the other ends of the two second connecting rods 132 are connected to both ends of the end face of the upper cover 1. The two second connecting rods 132 can transmit force to the upper cover 1 more evenly, increasing the stability of the force transmission path.

[0062] In some embodiments, the squeegee 2 includes an integrally formed main frame 24 and a squeegee surface 25. The squeegee surface 25 is formed at the bottom of the main frame 24 and is used to contact and squeegee the printed material. The integrally formed structure of this application can eliminate the splicing gap between the main frame 24 and the squeegee surface 25, avoiding the problems of component misalignment and deformation during squeegeeing caused by loose assembly. When the pressure of the spring 3 is transmitted to the main frame 24, the integral structure can evenly transmit the force to the entire area of ​​the squeegee surface 25, avoiding the problem of air bubble residue or poor adhesion caused by insufficient local pressure.

[0063] In some embodiments, the direction of the scraping surface 25 is set to form a certain angle relative to the sliding direction of the limiting buckle 12 and the slot 22, wherein the angle θ is greater than or equal to 30 degrees, and / or the angle θ is less than or equal to 50 degrees. The angle θ between the scraping surface 25 and the sliding direction affects the calculation of the effective scraping force and thus affects the effect of the scraping area.

[0064] The key to successful printing adhesion using the above method is removing air bubbles between the adhesive and the product surface. An angled scraping motion facilitates the gradual removal of these bubbles along the scraping direction. The 30-50 degree angle design creates an angled pushing effect when the scraping surface 25 contacts the printed material. An angle that is too small will result in an excessively large contact area between the scraping surface 25 and the printed material, obstructing the bubble removal path; an angle that is too large will cause the edge of the scraping surface 25 to cut the adhesive, creating new bubbles. This angle range balances the contact area and the pushing force, allowing air bubbles to be removed during the scraping process, ensuring full adhesion between the adhesive and the product surface, and solving the problems of residual bubbles and weak adhesion caused by random scraping angles during manual scraping.

[0065] Furthermore, when operators on the production line are scraping, their hands naturally tend to apply force at an angle. An angle of 30 to 50 degrees aligns the direction of force on the scraping surface 25 with the body's natural force application habits. This allows operators to more smoothly convert the force applied through the handle 13 into a scraping motion, reducing the extra force required due to directional deviation. This design reduces hand fatigue from repetitive operations, improves production line efficiency, reduces scraping angle deviations caused by awkward operation, and ensures consistent scraping quality.

[0066] In some embodiments, when the angle θ between the squeegee surface and the sliding direction is less than 30 degrees, the spring 3 needs to output a greater elastic force to achieve the effective squeegee pressure required for pasting the printed matter. This can easily cause the spring 3 to be over-compressed, affecting the service life of the spring and the stability of pressure transmission.

[0067] In some embodiments, when the included angle θ is greater than 50 degrees, the spring 3 only needs to output a small elastic force to generate a scraping pressure that exceeds the process requirements, which may damage the printed material or product surface. However, an included angle range of 30 to 50 degrees, through precise mechanical adaptation, can ensure a stable and reliable linear correspondence between the output force of the spring 3 and the effective scraping pressure, thereby accurately meeting the differentiated adhesive force requirements of different types of printed materials.

[0068] In some embodiments, the squeegee surface 25 is configured as a plane. This application addresses scenarios involving planar printed materials or planar adhesive areas of products. The planar squeegee surface 25 can adhere to the surface of the printed material, ensuring maximum contact area and uniform pressure distribution during squeegeeing. Compared to the potential issues of concentrated edge pressure and insufficient central pressure that may occur with non-planar squeegee surfaces 25 during planar adhesive application, the planar design allows the pressure transmitted by the spring 3 to be evenly applied to the entire area of ​​the printed material through the squeegee surface 25, effectively preventing localized air bubble residue or insufficient adhesive adhesion.

[0069] In some embodiments, the squeegee surface 25 is configured as an arc-shaped surface, with the opening of the arc-shaped surface facing away from the top cover 1. During squeegeeing, the arc-shaped surface first contacts one end of the printed material, gradually covering the entire adhesive area as the operation progresses, with pressure evenly transmitted along the arc-shaped trajectory. Compared to the "point-contact squeegee" method of flat squeegeeing on an arc-shaped surface, this method can more efficiently remove air bubbles between the adhesive and the arc-shaped substrate. The air bubbles can naturally converge and dissipate along the direction of the arc-shaped contact, avoiding air bubble residue caused by uneven contact. Simultaneously, the uniform pressure transmission ensures that the adhesive fully adheres to the arc-shaped surface, solving the problems of weak adhesion and edge lifting during manual squeegeeing of arc-shaped areas.

[0070] In some embodiments, there are multiple mounting posts 11, and each mounting post 11 can be independently fitted with a spring 3. The multiple mounting posts 11 are evenly distributed, and with the synchronized action of the springs 3, the force applied by the top cover 1 can be evenly transmitted to the entire area of ​​the squeegee 2 through multiple sets of springs 3, avoiding pressure deviation on the squeegee surface 25 caused by concentrated force on a single spring 3. Even if a single spring 3 has a slight stiffness error, the combination of multiple springs 3 can offset the deviation through force superposition, ensuring consistent pressure distribution when the squeegee surface 25 contacts the printed material, and solving the problem of insufficient local pressure leading to air bubble residue or uneven pressure causing adhesive peeling.

[0071] In some embodiments, by combining springs 3 with different stiffness coefficients, the overall stiffness of the springs 3 can be adjusted to match the scraping pressure within the conventional range of 30N-80N and the required specific force value. Combinations of springs 3 with different free lengths can adapt to printed materials of different thicknesses or special pasting processes, enabling various pressure adjustments. No modifications to the main tooling structure are required; different pressure modes can be quickly switched simply by replacing or combining springs 3 with different parameters. Low-stiffness springs 3 are used when producing thin printed materials, while high-stiffness springs 3 are used when high-precision force values ​​are required in experiments. This reduces the development cost of dedicated tooling for different products and processes, and shortens production line changeover time.

[0072] In some embodiments, the scraping element 2 is provided with a scale mark 26, which is used to indicate the displacement of the upper cover 1 relative to the scraping element 2, so as to correlate the compression amount of the spring 3. The scale mark 26 of this application converts the relative displacement between the upper cover 1 and the scraping element 2 into an intuitive visual signal, which is the compression amount of the spring 3. Operators can directly read the compression amount through the scale and quickly calculate the actual scraping pressure by combining it with the spring 3 stiffness parameter. This changes the problem of manual scraping relying on feel and the inability to quantify pressure, enabling scraping pressure control to shift from experience-based judgment to data-driven operation, meeting the process requirements of 30N-80N. The scale mark 26 provides a unified operating benchmark. For a certain type of printed material, the process document can clearly specify compression to 3mm from the scale line, avoiding deviations in compression amount due to different individual experiences. Standardized operation can ensure a high degree of consistency in the adhesion of printed materials in the same batch or even different batches, reducing quality fluctuations such as partial adhesion and partial lifting caused by uneven pressure.

[0073] In some embodiments, the scale markings 26 are disposed on the inner wall of the cavity 21. When a scraping operation is performed, the scale lines of the scale markings 26 are gradually revealed as the upper cover 1 moves downward, making it easy for operators to read intuitively. The inner wall of the cavity 21 is a relatively enclosed area inside the tooling, which can reduce the direct adhesion of impurities such as dust, oil, and water stains in the production environment to the scale surface. It can also prevent the scale from being worn or blurred due to collisions and friction when the operator grasps and places the tooling, thus maintaining clear markings for a long time, extending its effective service life, and reducing operational errors caused by unclear scales. The inner wall of the cavity 21 is the direct guide surface for the upper cover 1 to slide relative to the scraping component 2. The scale is disposed on the inner wall along the sliding direction, which can intuitively reflect the movement trajectory and displacement of the upper cover 1, making the scale change completely synchronized with the compression process of the spring 3, avoiding visual misalignment caused by the scale position deviating from the direction of movement, and improving the intuitiveness and reliability of operation.

[0074] A second aspect of this application provides a printing adhesive fixture, including a top cover 1, a scraping element 2, and a spring 3. At least one mounting post 11 is provided on one end face of the top cover 1, and a limiting step 111 is provided on the mounting post 11. A limiting buckle 12 is provided on the side wall of the top cover 1. The scraping surface 24 on the scraping element 2 is used to scrape and press the printed material. The spring 3 is sleeved on the mounting post 11, with one end of the spring 3 abutting against the limiting step 111 and the other end abutting against the inner wall of the cavity 21 of the scraping element 2.

[0075] In some embodiments, the scraping member 2 has a cavity 21, a slot 22, and a mounting hole 23. The inner wall of the cavity 21 is slidably connected to the side wall of the upper cover 1. The slot 22 is formed on the side wall of the cavity 21, and the slot 22 is slidably engaged with the limiting buckle 12, so that the upper cover 1 moves relative to the scraping member 2 along the length direction of the slot 22; the mounting hole 23 is provided on the bottom wall of the cavity 21 to provide movement space for the mounting hole 23. The mounting post 11 is threadedly connected to the upper cover 1; by screwing the mounting post 11, its length extending out of the upper cover 1 is adjusted, thereby changing the pre-compression of the spring 3.

[0076] Through the above-described scheme, this application uses a threaded connection between the mounting post 11 and the upper cover 1, allowing the operator to adjust the length of the mounting post 11 extending beyond the upper cover 1 by screwing it on. When the mounting post 11 extends further, the limiting step 111 moves towards the scraping member 2, compressing the spring 3; conversely, the pre-compression amount decreases. This adjustment directly changes the initial elastic force of the spring 3. Compared to structures where pre-compression cannot be adjusted, this design can adapt to printed materials of different thicknesses and materials, solving the problem that a single pre-compression amount is insufficient to cover diverse adhesive needs.

[0077] In some embodiments, the design of the limiting step 111 provides an axial positioning point for the spring 3. One end of the spring 3 abuts against the limiting step 111, and the other end abuts against the scraping element 2, so that the adjustment of the pre-compression amount acts directly on the spring 3, avoiding the force transmission deviation that may be caused by the deformation of the upper cover 1 when the spring 3 is in direct contact with the upper cover 1. The helical feeding characteristic of the threaded connection can realize the fine adjustment of the pre-compression amount, thereby controlling the adjustment accuracy of the pre-tightening force within the range of 1-2N, meeting the requirements of specific force value pasting in experimental scenarios, ensuring that the initial scraping pressure of different batches of printed materials in production is highly consistent, and reducing quality fluctuations.

[0078] With the above solution, the precompression can be adjusted simply by turning the mounting post 11, without replacing spring 3, thus enabling rapid switching of scraping pressure. This avoids the cost of customizing multiple sets of spring 3 for different force requirements, reduces the number of steps required to replace spring 3 during production line changes, improves tooling adaptability, and is suitable for small-batch, multi-variety production scenarios.

[0079] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the embodiments and various different variations of the embodiments suitable for specific application considerations.

Claims

1. A printing adhesive tool, characterized in that, include: The top cover has at least one mounting post on one end face and a limit buckle on the side wall of the top cover. A scraping and pressing component, wherein the upper cover is inserted into the scraping and pressing component, and the scraping and pressing surface on the scraping and pressing component is used to scrape and press the printed matter; the scraping and pressing component has the following openings: A cavity, the inner wall of which is slidably connected to the side wall of the upper cover; The slot is formed on the side wall of the cavity, and the slot slides with the limiting buckle, so that the upper cover moves relative to the scraping member along the length of the slot; A spring is sleeved on the mounting post, with one end of the spring abutting against the inner wall of the upper cover and the other end abutting against the inner wall of the cavity. The spring is used to generate elastic deformation when the upper cover moves relative to the scraping member along the length of the slot, and to drive the scraping member to apply scraping pressure to the printed matter through elastic force.

2. The printing paste pasting fixture according to claim 1, characterized in that, The scraping component includes an integrally formed main frame, and the scraping surface is formed at the bottom of the main frame; the main frame is provided with mounting holes to provide movement space for the mounting column.

3. The printing paste pasting fixture according to claim 2, characterized in that, The direction of the scraping surface is set to form a certain angle relative to the sliding direction of the limiting buckle and the slot, wherein the angle is greater than or equal to 30 degrees, and / or the angle is less than or equal to 50 degrees.

4. The printing paste pasting fixture according to claim 2, characterized in that, The scraping surface is set as a plane and is used to scrape and press the flat pasting area of ​​the printed material.

5. The printing paste pasting fixture according to claim 2, characterized in that, The scraping surface is configured as an arc-shaped surface, and the opening of the arc-shaped surface faces away from the top cover.

6. The printing paste pasting fixture according to claim 1, characterized in that, The number of mounting posts is multiple, and each mounting post can be independently fitted with a spring; the stiffness coefficient and / or free length of the multiple springs may be the same or different.

7. The printing paste pasting fixture according to claim 1, characterized in that, The scraping element is provided with scale markings, which are used to indicate the displacement of the upper cover relative to the scraping element, in order to correlate the compression of the spring.

8. The printing paste pasting fixture according to claim 1, characterized in that, The upper cover is also provided with a handle, the handle comprising: First connecting rod; The second connecting rod has one end connected to the first connecting rod and the other end connected to the top cover.

9. The printing paste pasting fixture according to claim 8, characterized in that, At least one of the second connecting rods is connected to the middle of one end face of the upper cover to provide stable scraping pressure to the middle of the tooling.

10. A printing adhesive tool, characterized in that, include: The top cover has at least one mounting post on one end face, a limiting step on the mounting post, and a limiting buckle on the side wall of the top cover. A scraping and pressing component, wherein the upper cover is inserted into the scraping and pressing component, and the scraping and pressing surface on the scraping and pressing component is used to scrape and press the printed matter; the scraping and pressing component has the following openings: A cavity, the inner wall of which is slidably connected to the side wall of the upper cover; The slot is formed on the side wall of the cavity, and the slot slides with the limiting buckle, so that the upper cover moves relative to the scraping member along the length of the slot; A spring is sleeved on the mounting post, with one end of the spring abutting against the limiting step and the other end abutting against the inner wall of the cavity. The spring is used to generate elastic deformation when the upper cover moves relative to the scraping member along the length of the slot, and to drive the scraping member to apply scraping pressure to the printed matter through elastic force. The mounting post is threadedly connected to the top cover; by screwing the mounting post to adjust its length extending out of the top cover, the pre-compression of the spring is changed.

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