A film position correcting device

Abstract

The utility model discloses a kind of film position correction devices, belong to screen printing technical field, including the frame main body for adapting rectangular screen frame and length adjustable, scale mark is equipped on the frame main body, the frame main body bottom is equipped with height adjustable support foot stand, while the support foot stand is only set in three sides of the frame main body, the frame main body forms film and is put into passageway in one side without support foot stand;Wherein, the frame main body is hollow structure, forms blank area for film position adjustment.The utility model can improve film positioning efficiency, adapt different size screen and positioning accurate.

Description

Technical Field

[0001] This utility model relates to the field of screen printing technology, and in particular to a film position correction device. Background Technology

[0002] In the screen printing production process, the exposure step is one of the key steps. The core requirement of this step is to accurately transfer the pattern from the film to the screen, and the prerequisite for accurate transfer is to place the film pattern precisely in the center of the screen. Currently, the industry commonly uses manual measurement with a steel ruler for film positioning. Operators need to repeatedly measure the distance between the perimeter of the film and the edge of the screen frame with a steel ruler to ensure that the film is in the exact center of the screen.

[0003] This traditional positioning method has many drawbacks: First, the positioning efficiency is extremely low, especially for new employees who often need to spend more time measuring and adjusting due to insufficient operational proficiency, which seriously affects the production cycle; second, the size of different screen printing plates varies greatly, and steel ruler measurement requires recalculation and measurement for different screen printing plates, resulting in poor adaptability; in addition, manual measurement relies on the operator's experience and feel, and the positioning accuracy is unstable. Moreover, steel ruler measurement can only confirm the distance at a single point, making it difficult to ensure that the vertical distance between each side of the film and the edge of the screen frame is uniform, which can easily lead to film offset and affect the exposure effect.

[0004] Therefore, there is an urgent need for a film position correction device that can improve positioning efficiency, adapt to different sizes of screen printing plates, and provide accurate positioning, in order to solve the problems existing in the prior art. Utility Model Content

[0005] To address the problems of existing film positioning methods, this invention provides a film position correction device. This device improves film positioning efficiency, adapts to different screen sizes, and provides accurate positioning.

[0006] The technical solution adopted by this utility model for a film position correction device is as follows: A film position correction device includes a frame body that is adjustable in length and adaptable to a rectangular grid frame. The frame body is provided with scale markings, and the bottom of the frame body is provided with height-adjustable support legs. The support legs are only provided on three sides of the frame body, and the side of the frame body without support legs forms a film insertion channel. The frame body is a hollow structure, forming a blank area for film position adjustment.

[0007] A further improvement of this utility model is that the starting end of the scale mark is aligned with the inner side of the support leg and is increased inward along the length of the frame body. At the same time, each side of the frame body is provided with at least two confirmation points for confirming the vertical distance between the edge of the film and the center of the frame.

[0008] A further improvement of this utility model is that the two confirmation points on each side are located at 1 / 4 and 3 / 4 of the length of the corresponding side, respectively.

[0009] A further improvement of the present invention is that each side of the main frame includes a fixed section and a telescopic section; wherein the telescopic section is slidably fitted inside the fixed section, and the fixed section is provided with a first locking member for locking the telescopic section.

[0010] A further improvement of this utility model is that: the inner wall of the fixed section is provided with a guide groove, and the outer wall of the telescopic section is provided with a guide protrusion that matches the guide groove, and the guide protrusion is arranged along the length direction of the telescopic section.

[0011] A further improvement of the present invention is that the support frame includes a fixed base and telescopic legs; wherein the fixed base is fixedly connected to the frame body, the telescopic legs are slidably inserted into the fixed base, and the fixed base is provided with a second locking member for locking the telescopic legs.

[0012] A further improvement of this utility model is that the outline of the blank area of ​​the frame body is adapted to the outline of a commonly used film pattern, and the blank area extends through the upper and lower surfaces of the frame body.

[0013] The technological advancements achieved by this utility model due to the adoption of the above technical solution are as follows: This invention, with its adjustable-length frame and pre-set scale markings, eliminates the need for repeated manual measurements with a steel ruler. Operators can quickly adapt the invention to the frame size and directly confirm the film position via the scale, shortening the positioning time and significantly reducing the operational difficulty for new employees, thereby improving production efficiency.

[0014] The length of the main frame of this utility model is adjustable, and the height of the supporting legs is adjustable, which can adapt to rectangular frames of different sizes and screens of different thicknesses. There is no need to configure a separate calibration tool for each specification of screen, which reduces production costs and improves the versatility of this utility model.

[0015] This utility model has at least two confirmation points on each side of the frame body. Combined with scale markings, it can accurately confirm the vertical distance between each side of the film and the center of the screen frame, ensuring that the film is accurately positioned in the center of the screen, effectively avoiding exposure defects caused by film offset and improving the product qualification rate.

[0016] The main frame of this utility model has no supporting legs on one side, forming a dedicated film insertion channel. Combined with the blank area of ​​the hollow structure, it facilitates operators to quickly insert and adjust the position of the film. Attached Figure Description

[0017] Figure 1 This is the front view of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a top view of the present invention.

[0018] In the attached diagram: 1. Main frame; 2. Supporting legs; 3. Blank area; 4. Film insertion channel. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. In the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily obscuring the concept of this utility model.

[0020] Example 1 This utility model provides a film position correction device, including a frame body 1 for adapting to a rectangular frame. The length of the frame body 1 is adjustable. The frame body 1 is provided with scale markings. The bottom of the frame body 1 is provided with support legs 2. The support legs 2 are only provided on three sides of the frame body 1. One side of the frame body 1 is without support legs 2 to form a film insertion channel 4. The height of the support legs 2 is adjustable. The frame body 1 is a hollow structure, forming a blank area 3 for film position adjustment. The frame body 1 is made of a plastic material that does not produce debris.

[0021] In this embodiment, the frame body 1 is a rectangular frame structure adapted to a rectangular mesh frame, made of ABS engineering plastic. Therefore, the frame body 1 has good rigidity, wear resistance, and corrosion resistance, and does not produce debris, meeting the requirements of a high-cleanliness production environment. The frame body 1 includes a fixed section and a telescopic section. The fixed section is a hollow structure, and the telescopic section is slidably fitted inside the fixed section. The inner wall of the fixed section has a guide groove extending along its length, and the outer wall of the telescopic section has a guide protrusion that matches the guide groove. The guide protrusion is embedded in the guide groove to ensure that the telescopic section slides smoothly within the fixed section and avoids deviation. The end of the fixed section is provided with a first locking member, which is a locking bolt. The fixed section has a threaded hole that matches the locking bolt and communicates with the guide groove. When the telescopic section is adjusted to a suitable length, the locking bolt is tightened, and its end abuts against the outer wall of the telescopic section, realizing the relative fixation of the fixed section and the telescopic section, thereby adjusting the overall length of the frame body 1 to adapt to rectangular mesh frames of different sizes.

[0022] Meanwhile, in this embodiment, the frame body 1 is a hollow structure, forming a blank area 3. The blank area 3 is a rectangular structure that runs through the upper and lower surfaces of the frame body 1. Its outline matches the outline of commonly used rectangular film patterns. This blank area 3 not only reduces the overall weight of the device but also provides operating space for adjusting the position of the film, making it convenient for operators to observe and move the film from above. The top edge of the frame body 1 has a rounded corner transition structure to avoid sharp edges scratching the film or operators. The inner wall of the frame body 1 has a smooth coating, which further improves the safety of operation and reduces frictional damage when the film comes into contact with the inner wall of the frame.

[0023] In this embodiment, the scale markings are set on the upper surface of the frame body 1, evenly distributed along the four sides of the frame body 1. The starting end of the scale markings (i.e., the 0 scale line) is aligned with the inner side of the support leg 2. The scale is set in millimeters as the smallest unit, increasing inward along the length of the frame body 1. Each side of the frame body 1 has two confirmation points, located at 1 / 4 and 3 / 4 of the length of that side, respectively. By reading the scale at these two points, the operator can quickly confirm whether the vertical distance between the edge of the film and the center of the screen frame is consistent, ensuring that the film is accurately positioned in the center of the screen.

[0024] In this embodiment, there are a total of 5 support legs 2, which are evenly distributed on the three sides of the frame body 1. Two support legs 2 are provided on each of the two opposite sides (sides in the length direction) of the frame body 1, and one support leg 2 is provided on the remaining side (side in the width direction). There are no support legs 2 on the other side (opposite side in the width direction) of the frame body 1, forming a film insertion channel 4, which makes it convenient for operators to quickly insert the film into the blank area 3 of the frame body 1 from this side. Each support bracket 2 includes a fixed base and a telescopic leg. The fixed base is fixedly connected to the bottom of the frame body 1. The telescopic leg slides through the fixed base. The fixed base is provided with a second locking component, which is a locking knob. The fixed base has a threaded hole that matches the locking knob. The threaded hole communicates with the internal channel of the fixed base. The telescopic leg is provided with a height scale. The operator can slide the telescopic leg according to the thickness of the screen and observe and adjust the height through the height scale. After adjustment, tighten the locking knob, and its end abuts against the outer wall of the telescopic leg to achieve relative fixation between the telescopic leg and the fixed base. This allows the height of the frame body 1 to adapt to screens of different thicknesses, ensuring that the film can stably adhere to the screen surface.

[0025] In this embodiment, the bottom of the support leg 2 is provided with an anti-slip pad. The anti-slip pad is made of silicone, which can increase the friction between the support leg 2 and the workbench surface, prevent the slippage during use, and improve the stability of the placement of this embodiment.

[0026] In this embodiment, firstly, according to the size of the screen to be positioned, loosen the first locking piece, slide the telescopic section, and adjust the overall length of the frame body 1 so that the inner contour of the frame body 1 matches the outer contour of the screen frame. After adjustment, tighten the first locking piece to fix it.

[0027] Then, based on the thickness of the screen to be positioned, loosen the second locking piece, slide the telescopic support leg, and adjust the height of the support leg 2 through the height scale so that the upper surface of the frame body 1 is flush with or slightly lower than the surface of the screen. After adjustment, tighten the second locking piece to fix it.

[0028] Place the adjusted calibration device on the workbench, ensuring that the support legs 2 are firmly on the ground and the anti-slip pads are in close contact with the workbench surface.

[0029] Place the wire mesh frame inside the frame body 1, so that three sides of the wire mesh frame are in contact with the three inner walls of the frame body 1 where the supporting legs 2 are located. The operator places the film into the blank area 3 of the frame body 1 from the unsupported leg 2 at the channel 4, so that the film is laid flat on the surface of the screen.

[0030] Observe the confirmation points on the corresponding sides of the four edges of the film and the frame body 1. Read the distance between the edge of the film and the edge of the screen frame at each confirmation point through the scale markings. Adjust the position of the film so that the readings at the two confirmation points on each side are consistent. At this time, the film pattern is accurately positioned in the center area of ​​the screen.

[0031] After positioning, fix the film to the P side of the screen with tape, then pull the screen with the film attached out of the film channel for exposure. After exposure, peel the film off the P side of the screen to complete the operation.

[0032] In the above embodiments, this utility model provides a film position correction device. This utility model, with its adjustable-length frame and preset scale markings, eliminates the need for repeated manual measurements with a steel ruler. Operators can quickly adapt this utility model to the screen frame size and directly confirm the film position via the scale markings, shortening positioning time and significantly reducing the operational difficulty for new employees, thus improving production efficiency. The adjustable length of the frame and the adjustable height of the support legs allow for adaptation to rectangular screen frames of different sizes and screen thicknesses, eliminating the need for separate correction tools for each screen size, reducing production costs, and improving the utility model's versatility. Each side of the frame has at least two confirmation points, which, combined with the scale markings, accurately confirm the vertical distance between each edge of the film and the center of the screen frame, ensuring the film is precisely positioned in the center of the screen, effectively avoiding exposure defects caused by film offset and improving product qualification rate. One side of the frame has no support legs, forming a dedicated film insertion channel. Combined with the hollow structure's blank area, this facilitates quick film insertion and adjustment by operators.

[0033] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. A film position correction device, characterized in that: The frame includes a frame body (1) for adapting to a rectangular frame and with adjustable length. The frame body (1) is marked with scale markings. The bottom of the frame body (1) is provided with height-adjustable support legs (2). The support legs (2) are only provided on three sides of the frame body (1). The side of the frame body (1) without support legs (2) forms a film insertion channel (4). The frame body (1) is a hollow structure, forming a blank area (3) for film position adjustment.

2. The film position correction device according to claim 1, characterized in that: The starting end of the scale mark is aligned with the inner side of the support leg (2) and is set in an increasing manner along the length direction of the frame body (1). At the same time, each side of the frame body (1) is provided with at least two confirmation points for confirming the vertical distance between the edge of the film and the center of the frame.

3. The film position correction device according to claim 2, characterized in that: The two confirmation points on each side are located at 1 / 4 and 3 / 4 of the length of the corresponding side, respectively.

4. The film position correction device according to claim 1, characterized in that: Each side of the frame body (1) includes a fixed section and a telescopic section; wherein the telescopic section is slidably fitted inside the fixed section, and the fixed section is provided with a first locking member for locking the telescopic section.

5. A film position correction device according to claim 4, characterized in that: The inner wall of the fixed section is provided with a guide groove, and the outer wall of the telescopic section is provided with a guide protrusion that matches the guide groove, and the guide protrusion is arranged along the length direction of the telescopic section.

6. The film position correction device according to claim 1, characterized in that: The support frame (2) includes a fixed base and telescopic legs; wherein the fixed base is fixedly connected to the frame body (1), the telescopic legs are slidably inserted into the fixed base, and the fixed base is provided with a second locking member for locking the telescopic legs.

7. The film position correction device according to claim 1, characterized in that: The outline of the blank area (3) of the frame body (1) is adapted to the outline of a commonly used film pattern, and the blank area (3) extends through the upper and lower surfaces of the frame body (1).

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