A film standing storage device for PCB production
By designing a suitable film settling and storage device, the problem of dimensional instability caused by internal stress and temperature and humidity changes during the settling process of the film was solved, realizing stable settling and quantity monitoring of the film, and improving the manufacturing precision of the PCB board.
Patent Information
- Application Number
- CN202522402482.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-12
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-12
AI Technical Summary
The lack of suitable devices for static storage of film in the existing technology leads to unstable graphic dimensions of the film due to internal stress and changes in ambient temperature and humidity before circuit drawing, which affects the interlayer alignment accuracy of the PCB board.
A film storage device for PCB board production was designed, including a base plate and a top plate. The frame material encloses the storage space, and the top plate is provided with a slot and a pick-and-place port to adapt to the sealing structure of packaging bags. The device combines a calculation module and a sensing module to monitor the number of films in real time, and uses casters for easy movement.
It enables adaptation to ambient temperature and humidity during the static placement process, avoids film size changes, ensures graphic stability, facilitates film handling and quantity monitoring, and improves the manufacturing precision of PCB boards.
Smart Images

Figure CN224929473U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PCB board production, and in particular to a film static storage device for PCB board production. Background Technology
[0002] A PCB (Printed Circuit Board) is an important electronic component. It serves as the support for electronic components and the carrier for their electrical interconnections. Because it is manufactured using electronic printing techniques, it is also called a "printed" circuit board. In the PCB manufacturing process, corresponding circuits need to be drawn using film, and then the circuits are printed onto the corresponding PCB material through etching. Before the circuits are drawn, the film substrate (such as polyester film) accumulates internal stress during production, winding, and storage. Simultaneously, as a polymer material, it is highly sensitive to environmental temperature and humidity, undergoing thermal expansion and contraction. If the film is drawn directly without resting, these internal stresses and the incompatibility with environmental temperature and humidity will cause the graphic dimensions to continuously change after exposure. In PCB manufacturing, especially multilayer boards, precise alignment between circuit layers is required. The dimensional instability of the film itself directly leads to deviations in graphic transfer. If unstable film is used, the drawn graphic will not match the expansion and contraction of the PCB substrate, resulting in alignment errors, which can seriously cause interlayer short circuits or open circuits. Therefore, pre-resting the film can significantly reduce this uncertainty; however, current technology lacks a device specifically adapted for the film resting process. Therefore, a structurally sound solution is urgently needed to address the aforementioned technical problems. Utility Model Content
[0003] In view of the technical problem that there is no suitable solution for static storage of film in the prior art, this utility model provides a solution.
[0004] To achieve the above objectives, this utility model provides a film storage device for PCB board production, including a base plate with frame members at its four corners to enclose a storage space for the film; it also includes a top plate connected to the ends of multiple frame members to cover the storage space; the top plate has multiple slots on its side facing the base plate, each slot extending to both sides of the top plate, with one side forming a loading / unloading opening; the slots are adapted to the sealing structure of the packaging bag for the film.
[0005] As an improvement of this application, the cross-sectional shape of the pick-and-place port is "T".
[0006] As an improvement of this application, the top plate is provided with a computing module and a sensing module electrically connected on one side of the loading and unloading port, and a digital display screen is formed on the surface of the computing module.
[0007] As an improvement of this application, the computing module is equipped with an RFID chip; the sensing module is an inductive antenna and is placed on the edge of the pick-up and drop-off port; a passive tag is provided in the middle of the sealing structure.
[0008] As an improvement of this application, the inductive antenna is divided into multiple antenna elements, and any one of the antenna elements is connected between the computing module and the expected number of pick-and-place ports.
[0009] As an improvement of this application, the surface of the computing module is also provided with a reset button, which is electrically connected to the microcontroller in the computing module.
[0010] As an improvement of this application, the side of the base plate away from the top plate is also provided with casters.
[0011] As an improvement of this application, the caster wheel is further provided with a locking mechanism to prevent the wheel from rotating.
[0012] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model provides a film storage device for PCB board production, including a base plate, with frame members set at the four corners of the base plate to enclose and form a storage space for storing film; it also includes a top plate, which is connected to the ends of multiple frame members to cover the storage space; the top plate also has multiple slots on the side facing the base plate, any slot extending to both sides of the top plate, and forming a pick-and-place opening on one side; the slots are adapted to the sealing structure of the packaging bag of the film; the enclosure of the frame members enables communication between the outside and the storage space, allowing the film to adapt to the temperature and humidity of the environment during storage, avoiding large dimensional changes; furthermore, the pick-and-place opening allows the sealing structure of the packaging bag of the film to slide into the slot, so that the film can be suspended in the storage space according to the structural characteristics of the packaging bag, making it convenient for technicians to pick up and place. Attached Figure Description
[0013] Figure 1 This is a perspective view of the present utility model; Figure 2 This utility model Figure 1 A magnified view of a specific area, A; Figure 3 A schematic diagram of a packaging bag structure adapted to this utility model; Figure 4 This is a framework diagram of the computing module of this utility model.
[0014] The symbols for the main components are explained below: 1. Base plate; 2. Frame material; 3. Top plate; 4. Card slot; 5. Calculation module; 51. Digital display screen; 52. Reset button; 6. Sensor module; 7. Casters; 8. Packaging bag; 81. Sealing structure; 82. Passive label. Detailed Implementation
[0015] To more clearly illustrate this utility model, the following description, in conjunction with the accompanying drawings, will provide a further picture.
[0016] In the following description, specific examples are given to provide a more in-depth understanding of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of them. It should be understood that the specific embodiments described are only used to explain the present invention and are not intended to limit the present invention.
[0017] It should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the said feature, integral, step, operation, element, or component, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, or combinations thereof.
[0018] To address the aforementioned technical problems, this application provides a film storage device for PCB board production. Please refer to the attached document. Figure 1 To be continued Figure 4 The device includes a base plate 1, with frame members 2 at its four corners to enclose a space for holding film; it also includes a top plate 3, which is connected to the ends of multiple frame members 2 to cover the space; the top plate 3 is provided with multiple slots 4 on the side facing the base plate 1, each slot 4 extending to both sides of the top plate 3, and forming a loading / unloading opening on one side; the slots 4 are adapted to the sealing structure 82 of the packaging bag 8 for packaging film; The following describes the solution of this application in the context of a specific application scenario: As a prerequisite, before the film is used for drawing, it needs to be kept still in the packaging bag 8. The environmental parameters for this stilling are generally the same as those of the environment where the photoplotting equipment is located. Under these conditions, the packaging will not experience significant temperature and humidity changes during the subsequent photoplotting process, and its dimensions will remain unchanged. In this solution, the technician only needs to slide the sealing structure 82 in the packaging bag 8 into the slot 4 through the pick-and-place port, so that both the packaging bag 8 and the film are placed in the stilling space at the same time. After the stilling time is completed, the packaging bag 8 can be slid out from the pick-and-place port, so that the packaging bag 8, together with the film, can be placed in the stilling space. The films are detached from the storage space and put into use, making overall use convenient and easy. Under these conditions, the films will not come into contact with each other, or the contact force will be minimal, preventing excessive compression that could cause deformation. The frame 2's enclosure connects the film to the external storage space, allowing it to adapt to varying temperatures and humidity during storage and preventing significant dimensional changes. Furthermore, the opening allows the sealing structure 82 of the packaging bag 8 to slide into the slot 4, enabling the film to be suspended within the storage space according to the bag 8's structural characteristics, facilitating easy access and use by technicians.
[0019] In this embodiment, the cross-sectional shape of the opening is "T" shaped, which can adapt to the structural characteristics of the sealing structure 82 on the market in the sealed state.
[0020] Because the film is relatively thin, a large quantity can be stored. However, it is difficult for technicians to quickly determine the remaining film quantity in the static space during subsequent use. Therefore, in this embodiment, the top plate 3 with the retrieval port is also equipped with an electrically connected computing module 5 and sensing module 6. The surface of the computing module 5 forms a digital display screen 51. It is easy to understand that the digital display screen 51 displays the film quantity in real time. Specifically, the sensing module 6 senses the technician's retrieval action and counts the retrieval action. The microcontroller or control board mounted in the computing module 5 is responsible for responding to the data from the sensing module 6, thereby realizing the monitoring of the film quantity. The sensing module 6 can use sensors, photosensitive sensors, etc., based on environmental changes and pressure changes based on whether the packaging bag 8 is in the card slot 4, which is something that those skilled in the art can achieve, so it will not be described in detail.
[0021] In the preferred embodiment, the computing module 5 is equipped with a microcontroller and an RFID chip; the sensing module 6 is an inductive antenna and is located on the edge of the pick-up / placement port; a passive tag 81 is provided in the middle of the sealing structure 82; it is easy to understand that when the user takes out the packaging tape, the passive tag 81 passes through the pick-up / placement port and is within the sensing range of the inductive antenna. At this time, the inductive antenna emits signals and energy, causing the wireless tag to generate an inductive signal and feed it back to the inductive antenna. The microcontroller and RFID chip perform calculations, causing the number on the digital display screen 51 to decrease by the corresponding number of pick-up / placement sensing times, so as to inform the user of the remaining film quantity; in the specific embodiment, the inductive antenna is divided into multiple antenna units, any antenna unit is between the computing module 5 and the expected number of pick-up / placement ports; multiple antenna units can achieve better coordination and facilitate local maintenance; In this embodiment, the surface of the calculation module 5 is also provided with a reset button 52, which is electrically connected to the microcontroller in the calculation module 5. When the user refills the card slot 4, the reset button 52 will make the value on the digital display screen 51 the maximum number of card slots 4, which is convenient for subsequent statistics.
[0022] In this embodiment, the side of the base plate 1 away from the top plate 3 is also provided with casters 7 for easy movement; in a more preferred embodiment, the casters 7 are also provided with a locking mechanism to prevent the wheel from rotating.
[0023] The advantages of this utility model are: 1. The enclosure of the frame allows for connection between the outside and the static space, enabling the film to adapt to the temperature and humidity of the environment during static storage and avoiding significant dimensional changes. 2. The opening allows the sealed structure of the packaging bag for the film to slide into the slot, enabling the film to be suspended in the stationary space according to the structural characteristics of the packaging bag, making it convenient for technicians to pick up and use.
[0024] The above-disclosed embodiments are only a few specific examples of this utility model. However, this utility model is not limited thereto. Any variations that can be conceived by those skilled in the art should fall within the protection scope of this utility model.
Claims
1. A film storage device for PCB board production, characterized in that, The device includes a base plate with frame members at its four corners, the frame members enclosing a space for holding the film; it also includes a top plate, the top plate being connected to the ends of the frame members to cover the space; the top plate has multiple slots on its side facing the base plate, any one of the slots extending to both sides of the top plate, with one side forming a loading / unloading opening; the slots are adapted to the sealing structure of the packaging bag for the film.
2. The film storage device for PCB board production according to claim 1, characterized in that, The cross-sectional shape of the pick-and-place port is "T".
3. The film storage device for PCB board production according to claim 1, characterized in that, The top plate has an retrieval port on one side, and a computing module and a sensing module are electrically connected. The surface of the computing module is formed with a digital display screen.
4. A film storage device for PCB board production according to claim 3, characterized in that, The computing module is equipped with an RFID chip; the sensing module is an inductive antenna and is located on the edge of the pick-up and drop-off port; a passive tag is provided in the middle of the sealed structure.
5. A film storage device for PCB board production according to claim 3, characterized in that, The inductive antenna is divided into multiple antenna elements, and any one of the antenna elements is connected between the computing module and the expected number of pick-and-place ports.
6. A film storage device for PCB board production according to claim 3, characterized in that, The surface of the computing module is also provided with a reset button, which is electrically connected to the microcontroller inside the computing module.
7. A film storage device for PCB board production according to claim 1, characterized in that, The side of the base plate away from the top plate is also provided with casters.
8. A film storage device for PCB board production according to claim 7, characterized in that, The caster wheel is also equipped with a locking mechanism to prevent the wheel from rotating.
