A vacuum film press

Abstract

This invention relates to the field of lamination equipment and provides a vacuum lamination machine, including an infeed module, a vacuum lamination module, and an outlet module. The infeed module includes an infeed transport structure, a first carrier film tensioning structure, and a cleaning unit. The vacuum lamination module has a vacuum chamber that can be opened and closed, and the vacuum chamber is connected to a pressurizing component. The outlet module includes an outlet transport structure, a second carrier film tensioning structure, and a cooling structure. The infeed and outlet modules can transport the carrier film while transporting the substrate. The first carrier film tensioning structure performs an unwinding action, and the second carrier film tensioning structure performs a winding action, driving the carrier film through the vacuum lamination module to press it against the substrate. The carrier film transport structure presses the carrier film to prevent positional changes during pressing, thus ensuring lamination on both sides of the substrate. The cleaning unit on the infeed module can effectively clean the carrier film before pressing it against the substrate, ensuring the cleanliness of the carrier film.

Description

Technical Field

[0001] This invention belongs to the field of film pressing equipment, and specifically relates to a vacuum film pressing machine. Background Technology

[0002] Vacuum lamination is performed on products such as circuit boards, semiconductors, and panels using photosensitive dry films, ABF, RCC, copper foil, aluminum foil, tin foil, or similar films. The key step is to uniformly heat and press the film material and the substrate together in a vacuum chamber, so that the film material is evenly and bubble-free applied to the substrate.

[0003] Existing vacuum laminators typically position the film and substrate within a vacuum chamber and then perform lamination in a vacuum environment. This lamination method places strict requirements on the cleanliness of the film, the transportation method, and the lamination action. However, existing technologies generally have film release and retraction rolls at the front and rear of the corresponding vacuum chamber, respectively, so that the carrier film is transported through the vacuum chamber and laminated with the substrate. This method cannot guarantee the tension of the carrier film, and the carrier film may shift during the lamination process, affecting the lamination operation. In addition, the carrier film is prone to contamination with impurities during this process, which will also greatly reduce the lamination effect. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a vacuum film pressing machine.

[0005] The present invention is implemented as follows: a vacuum film pressing machine includes a feeding module, a vacuum film pressing module and a discharging module arranged in sequence. The feeding module includes a feeding transport structure. A first film tensioning structure is provided above and below the feeding transport structure. Each first film tensioning structure is provided with a cleaning unit on the side near the vacuum film pressing module.

[0006] The vacuum pressing module includes a vacuum machine main body, which has a vacuum chamber that can be opened and closed. The substrate is transported into the vacuum chamber through the infeed transport structure, and the carrier film is transported into the vacuum chamber and pressed with the substrate through the first carrier film tensioning structure and the cleaning unit. The vacuum chamber is connected to a pressurizing component.

[0007] The unloading module includes an unloading transport structure. A second film tensioning structure is provided above and below the unloading transport structure. A film transport structure is provided on one side of each second film tensioning structure. The film is unwound from the first film tensioning structure, passes through the vacuum cavity, and is transported to the second film tensioning structure for winding via the film transport structure. A cooling structure is also provided above the unloading transport structure.

[0008] Furthermore, the first and second carrier film tensioning structures are identical in structure, both including an air-expanding shaft. The air-expanding shaft can be filled with gas, and its shaft diameter can be changed according to the amount of gas filled. A carrier film roll can be installed on the air-expanding shaft. A support plate is detachably provided at the other end of the air-expanding shaft. A connecting bearing is provided at one end of the support plate. The other end of the air-expanding shaft passes through the connecting bearing and is tightly fitted with the inner ring of the connecting bearing. An elastic retaining spring is provided on the part of the other end of the air-expanding shaft that extends out of the connecting bearing.

[0009] Furthermore, the cleaning unit includes a first eccentric shaft and a second eccentric shaft arranged from top to bottom. The first eccentric shaft and the second eccentric shaft are respectively driven to rotate eccentrically by a drive assembly. A first cleaning paper roll and a second cleaning paper roll are arranged from top to bottom between the first eccentric shaft and the second eccentric shaft. A secondary dust-collecting roller is arranged below the first cleaning paper roll, and a main dust-collecting roller is arranged above the second cleaning paper roll. A spring is connected between the first cleaning paper roll and the secondary dust-collecting roller, and between the second cleaning paper roll and the main dust-collecting roller. The secondary dust-collecting roller uses its own weight to always press down towards the main dust-collecting roller, and the carrier film passes through the space between the secondary dust-collecting roller and the main dust-collecting roller.

[0010] Furthermore, the main body of the vacuum machine includes an upper moving plate and a lower base plate. The upper moving plate is provided with an upper vacuum frame, and the lower base plate is provided with a lower vacuum frame. The upper vacuum frame and the lower vacuum frame are combined to form the vacuum cavity. The upper moving plate is connected to a first hydraulic cylinder that can drive the upper moving plate to move towards the lower base plate. The upper vacuum frame is provided with an upper heating component, and the lower vacuum frame is provided with a lower heating component. The film material and the substrate are placed between the upper heating component and the lower heating component for pressing.

[0011] Furthermore, the pressurizing component includes a second hydraulic cylinder that acts on the upper heating component, causing the upper heating component to move toward the lower heating component, and the second hydraulic cylinder is also equipped with a displacement sensor.

[0012] Furthermore, the carrier film transport structure includes an upper carrier film transport roller and a lower carrier film transport roller, which are connected by a synchronous belt. A first ballast film roller that can move vertically is provided below the upper carrier film transport roller, and a second ballast film roller that can move horizontally is provided below the lower carrier film transport roller. The carrier film is sequentially wrapped around the upper carrier film transport roller, the first ballast film roller, the lower carrier film transport roller, and the second ballast film roller.

[0013] Furthermore, the cooling structure includes several air coolers.

[0014] This invention provides a vacuum laminating machine, which includes an infeed module, a vacuum laminating module, and an outfeed module. The infeed and outfeed modules transport the substrate and the carrier film simultaneously. The carrier film is unwound by a first carrier film tensioning structure and wound up by a second carrier film tensioning structure, allowing the carrier film to pass through the vacuum laminating module and be pressed against the substrate. At the same time, the carrier film transport structure presses the carrier film to prevent positional changes during lamination, ensuring lamination on both sides of the substrate. Furthermore, the cleaning unit on the infeed module effectively cleans the carrier film before lamination with the substrate, ensuring the cleanliness of the carrier film. Attached Figure Description

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the invention.

[0017] Figure 1 This is a schematic diagram of the structure provided by the present invention.

[0018] Figure 2 This is a schematic diagram of the board entry module described in this invention.

[0019] Figure 3 This is a schematic diagram of the first carrier film tensioning structure in this invention.

[0020] Figure 4 This is a schematic diagram of the cleaning unit described in this invention.

[0021] Figure 5 This is a cross-sectional view of the vacuum film pressing module described in this invention.

[0022] Figure 6 This is a schematic diagram of the output module described in this invention.

[0023] Figure 7 This is a schematic diagram of the film transport structure described in this invention.

[0024] Reference numerals: 1. Feeding module; 11. Feeding transport structure; 12. First carrier film tensioning structure; 121. Air shaft; 122. Carrier film roll; 123. Support plate; 124. Elastic retaining spring; 13. Cleaning unit; 131. First eccentric shaft; 132. Second eccentric shaft; 133. First cleaning paper roll; 134. Second cleaning paper roll; 135. Secondary dust-collecting roller; 136. Main dust-collecting roller; 137. Spring; 2. Vacuum film pressing module; 21. Upper moving plate; 22. 23. Lower base plate; 24. Upper vacuum frame; 25. Lower vacuum frame; 26. First hydraulic cylinder; 27. Upper heating assembly; 28. Lower heating assembly; 29. ​​Second hydraulic cylinder; 30. Plate ejection module; 31. Plate ejection transport structure; 32. Second carrier film tensioning structure; 33. Carrier film transport structure; 34. Upper carrier film transport roller; 35. Lower carrier film transport roller; 36. Synchronous belt; 37. First ballast film roller; 38. Second ballast film roller; 39. Cooling structure; 30. Air cooler. Detailed Implementation

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] Please see Figures 1-7This invention discloses a vacuum laminating machine, comprising a feeding module 1, a vacuum laminating module 2, and a discharging module 3 arranged sequentially. The feeding module 1 includes a feeding transport structure 11, from which the substrate to be processed is transported. A first carrier film tensioning structure 12 is provided above and below the feeding transport structure 11. Specifically, the upper carrier film adhered to the upper surface of the substrate and the lower carrier film adhered to the lower surface of the substrate are unwound from a corresponding first carrier film tensioning structure 12. Structure 12 includes an air-expanding shaft 121, which can be filled with gas and whose shaft diameter can be changed according to the amount of gas filled. A carrier film roll 122 can be mounted on the air-expanding shaft 121. A support plate 123 is detachably provided at the other end of the air-expanding shaft 121. A connecting bearing is provided at one end of the support plate 123. The other end of the air-expanding shaft 121 passes through the connecting bearing and is tightly fitted with the inner ring of the connecting bearing. An elastic retaining spring 124 is provided at the part of the other end of the air-expanding shaft that extends out of the connecting bearing. The carrier film roll 122 is placed on the air-expanding shaft. When installing the carrier film roll 122, the elastic retaining spring 124 is removed to separate the air-expanding shaft from the support plate 123. The air-expanding shaft 121 is filled with gas to adapt to different inner diameters of the carrier film roll 122. On the one hand, it can carry the carrier film required by different substrates, with high compatibility. On the other hand, it can ensure the stable installation of the air-expanding shaft and the carrier film roll 122. After the carrier film roll 122 is installed on the air shaft, the support plate 123 is installed at the corresponding position on the air shaft, and then the elastic snap ring 124 is put on to complete the fixation of the air shaft. The replacement method of the carrier film roll 122 is simple, time-saving and labor-saving.

[0027] Preferably, each of the first carrier film tensioning structures 12 has a cleaning unit 13 on the side near the vacuum pressing module 2. The cleaning unit 13 includes a first eccentric shaft 131 and a second eccentric shaft 132 arranged from top to bottom. The first eccentric shaft 131 and the second eccentric shaft 132 are respectively driven to rotate eccentrically by a driving component. A first cleaning paper roll 133 and a second cleaning paper roll 134 are arranged from top to bottom between the first eccentric shaft 131 and the second eccentric shaft 132. A secondary dust-collecting roller 135 is provided below the first cleaning paper roll 133, and a main dust-collecting roller 136 is provided above the second cleaning paper roll 134. A spring 137 is connected between the first cleaning paper roll 133 and the secondary dust-collecting roller 135, and between the second cleaning paper roll 134 and the main dust-collecting roller 136. The secondary dust-collecting roller 135 uses its own weight to press down on the main dust-collecting roller 136. The carrier film passes between the secondary dust-collecting roller 135 and the main dust-collecting roller 136. The auxiliary dust-collecting roller 135 is connected to the main dust-collecting roller 136 by its own weight. When the main dust-collecting roller 136 rotates, it can drive the auxiliary dust-collecting roller 135 to rotate, thus cleaning the dust on both the upper and lower surfaces of the carrier film. At the same time, the first cleaning paper roll 133 and the second cleaning paper roll 134 respectively clean the auxiliary dust-collecting roller 135 and the main dust-collecting roller 136 by the intermittent eccentric cam movement of the first eccentric shaft 131 and the second eccentric shaft 132, so as to prevent the impurities after the auxiliary dust-collecting roller 135 and the main dust-collecting roller 136 have cleaned the carrier film from re-adhering to the next section of the carrier film, so as to ensure the cleaning effect and the cleanliness of the carrier film before lamination.

[0028] The vacuum pressing module 2 includes a vacuum machine main body device, which has a vacuum chamber that can be opened and closed. The substrate is transported into the vacuum chamber through the infeed transport structure 11, and the carrier film is transported into the vacuum chamber through the first carrier film tensioning structure 12 and the cleaning unit 13 to press with the substrate. Specifically, the main body of the vacuum machine includes an upper moving plate 21 and a lower base plate 22. An upper vacuum frame 23 is mounted on the upper moving plate 21, and a lower vacuum frame 24 is mounted on the lower base plate 22. The upper vacuum frame 23 and the lower vacuum frame 24 combine to form the vacuum cavity. The carrier film passes between the upper vacuum frame 23 and the lower vacuum frame 24. Both the upper moving plate 21 and the lower base plate 22 can be connected to a vacuum pump to achieve a preset vacuum level in the vacuum cavity. The upper moving plate 21 is connected to a first hydraulic cylinder 25 that can drive the upper moving plate 21 to move towards the lower base plate 22, so that the upper vacuum frame 23 and the lower vacuum frame 24 close together to form the vacuum cavity, where the carrier film and the substrate are both located. An upper heating assembly 26 is located inside the upper vacuum frame 23, and a lower heating assembly 27 is located inside the lower vacuum frame 24. The film and the substrate are placed between the upper heating assembly 26 and the lower heating assembly 27 for pressing. The vacuum chamber is connected to a pressurizing assembly. Specifically, the pressurizing assembly includes a second hydraulic cylinder 28 that acts on the upper heating assembly 26, causing the upper heating assembly 26 to move towards the lower heating assembly 27. After the first hydraulic cylinder 25 drives the upper moving plate 21 and the lower base plate 22 to close, the second hydraulic cylinder 28 continues to drive the upper heating assembly 26 and the lower heating assembly 27 to further press them together, ensuring sufficient contact between the carrier film and the substrate, thereby ensuring the film pressing effect. Furthermore, the second hydraulic cylinder 28 is also equipped with a displacement sensor to monitor the movement displacement of the upper heating assembly 26 in real time, preventing excessive movement of the upper heating assembly 26 that could damage the substrate.

[0029] The board ejection module 3 includes a board ejection transport structure 31. Specifically, the board infeed transport structure 11, the lower base plate 22, and the board ejection transport structure 31 are all located on the same horizontal line. Since the lower base plate 22 is fixed, the substrate can be transported sequentially through the board infeed transport structure 11, the lower base plate 22, and the board ejection transport structure 31, as well as in reverse. The laminated substrate is transported by the board ejection transport structure 31. A second film tensioning structure 32 is provided above and below the board ejection transport structure 31. The structures of the first film tensioning structure 12 and the second film tensioning structure 32 are identical, and the structure of the board ejection transport structure 31 can be referred to for details. A film transport structure 33 is provided on one side of each second film tensioning structure 32. The film is unwound from the first film tensioning structure 12, passes through the vacuum cavity, and is transported by the film transport structure 33 to the second film tensioning structure 32 for winding. Specifically, the film transport structure 33 includes an upper film transport roller 331 and a lower film transport roller 332. The upper film transport roller 331 and the lower film transport roller 332 are connected by a synchronous belt 333. A first ballast film roller 334 that can move vertically is provided below the upper film transport roller 331, and a second ballast film roller 335 that can move horizontally is provided below the lower film transport roller 332. The film is sequentially and crosswise wrapped around the upper film transport roller 331, the first ballast film roller 334, the lower film transport roller 332 and the second ballast film roller 335. The upper film transport roller 331 and the lower film transport roller 332 are simultaneously driven by the synchronous belt 333 to drive the rotation of the film. When the film is transported to the position corresponding to the substrate, before the pressing operation is performed in the vacuum chamber, the first film tensioning structure 12 stops unwinding and the second film tensioning structure 32 stops rewinding. At this time, the first pressing film roller 334 and the second pressing film roller 335 press and tighten the film in the vertical and horizontal directions respectively to prevent the film from shifting. Then, the upper heating component 26 in the vacuum chamber is driven by the second oil cylinder 28 to pressurize and complete the pressing operation. After pressing, the processed substrate moves to the board delivery transport structure 31. A cooling structure 34 is also provided above the board delivery transport structure 31. The cooling structure 34 preferably includes several cold air blowers 341 to circulate cooling air to dissipate heat from the vacuum-pressed substrate, so that the surface temperature is quickly reduced, which facilitates the collection of finished products by subsequent operators.

[0030] The system is equipped with the infeed module 1, the vacuum film pressing module 2, and the outfeed module 3, which are highly automated and can ensure the film pressing effect and improve production quality.

[0031] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A vacuum film pressing machine, characterized in that: The system includes a board feeding module (1), a vacuum film pressing module (2), and a board output module (3) arranged in sequence. The board feeding module (1) includes a board feeding transport structure (11). A first carrier film tensioning structure (12) is provided above and below the board feeding transport structure (11). Each first carrier film tensioning structure (12) has a cleaning unit (13) on the side near the vacuum film pressing module (2). The vacuum pressing module (2) includes a vacuum machine main body device. The vacuum machine main body device is provided with a vacuum cavity that can be opened and closed. The substrate is transported to the vacuum cavity through the infeed transport structure (11). The carrier film is transported to the vacuum cavity through the first carrier film tensioning structure (12) and the cleaning unit (13) to press with the substrate. The vacuum cavity is connected to a pressurizing component. The plate ejection module (3) includes a plate ejection transport structure (31). A second film tensioning structure (32) is provided above and below the plate ejection transport structure (31). A film transport structure (33) is provided on one side of each second film tensioning structure (32). The film is unwound from the first film tensioning structure (12), passes through the vacuum cavity, and is transported to the second film tensioning structure (32) for winding through the film transport structure (33). A cooling structure (34) is also provided above the plate ejection transport structure (31). The first carrier film tensioning structure (12) and the second carrier film tensioning structure (32) have the same structure, both including an air expansion shaft (121). The air expansion shaft (121) can be filled with gas and its shaft diameter can be changed according to the amount of gas filled. A carrier film roll (122) can be installed on the air expansion shaft (121). A support plate (123) is detachably provided at the other end of the air expansion shaft (121). A connecting bearing is provided at one end of the support plate (123). The other end of the air expansion shaft (121) passes through the connecting bearing and is tightly fitted with the inner ring of the connecting bearing. An elastic retaining spring (124) is provided at the part of the other end of the air expansion shaft (121) that extends out of the connecting bearing. The cleaning unit (13) includes a first eccentric shaft (131) and a second eccentric shaft (132) arranged from top to bottom. The first eccentric shaft (131) and the second eccentric shaft (132) are respectively driven to rotate eccentrically by a driving component. A first cleaning paper roll (133) and a second cleaning paper roll (134) are arranged from top to bottom between the first eccentric shaft (131) and the second eccentric shaft (132). A secondary dust-collecting roller (135) is arranged below the first cleaning paper roll (133). A main dust-collecting roller (136) is provided above the second cleaning paper roll (134). A spring (137) is connected between the first cleaning paper roll (133) and the auxiliary dust-collecting roller (135), and between the second cleaning paper roll (134) and the main dust-collecting roller (136). The auxiliary dust-collecting roller (135) presses down towards the main dust-collecting roller (136) by its own weight. The carrier film passes between the auxiliary dust-collecting roller (135) and the main dust-collecting roller (136).

2. The vacuum film pressing machine according to claim 1, characterized in that: The main body of the vacuum machine includes an upper moving plate (21) and a lower base plate (22). The upper moving plate (21) is provided with an upper vacuum frame (23), and the lower base plate (22) is provided with a lower vacuum frame (24). The upper vacuum frame (23) and the lower vacuum frame (24) are combined to form the vacuum cavity. The upper moving plate (21) is connected to a first hydraulic cylinder (25) that can drive the upper moving plate (21) to move towards the lower base plate (22). The upper vacuum frame (23) is provided with an upper heating component (26), and the lower vacuum frame (24) is provided with a lower heating component (27). The film material and the substrate are placed between the upper heating component (26) and the lower heating component (27) for pressing.

3. A vacuum film pressing machine according to claim 2, characterized in that: The pressurizing component includes a second cylinder (28) that acts on the upper heating component (26) to move the upper heating component (26) toward the lower heating component (27). The second cylinder (28) is also equipped with a displacement sensor.

4. A vacuum film pressing machine according to claim 1, characterized in that: The film transport structure (33) includes an upper film transport roller (331) and a lower film transport roller (332). The upper film transport roller (331) and the lower film transport roller (332) are connected by a synchronous belt (333). A first ballast film roller (334) that can move vertically is provided below the upper film transport roller (331), and a second ballast film roller (335) that can move horizontally is provided below the lower film transport roller (332). The film is sequentially wrapped around the upper film transport roller (331), the first ballast film roller (334), the lower film transport roller (332), and the second ballast film roller (335).

5. A vacuum film pressing machine according to claim 1, characterized in that: The cooling structure (34) includes several air coolers (341).

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