Hot pressing device for high-frequency resin substrate production

Abstract

The utility model discloses a hot-pressing device for high-frequency resin substrate production, which comprises a vertically arranged guide pillar, a base fixed at the bottom end of the guide pillar and a top seat fixed at the top end of the guide pillar, a plurality of hot-pressing plates are connected onto the guide pillar in a sliding manner, the hot-pressing plates are vertically arranged, and the top seat is provided with a power unit for driving the hot-pressing plates to move. Liftable ejection plates are arranged on the opposite side faces of every two adjacent hot pressing plates, elastic reset pieces are arranged between the ejection plates and the hot pressing plates, closed inner cavities are formed in the ejection plates, and ventilation pipes communicated with the inner cavities are arranged on the ejection plates. After hot pressing of the high-frequency resin substrate is completed, the hot pressing plates are separated from each other, the elastic reset pieces enable the ejection plates to be separated from the hot pressing plates, the high-frequency resin substrate is clamped through the two ejection plates, then the ejection plates are cooled, and cooling of the high-frequency resin substrate is achieved; by cooling and heating the ejector plate with a smaller size, the energy consumption of the hot press can be reduced, and the production efficiency of the hot press is improved.

Description

Technical Field

[0001] This utility model belongs to the field of hot press technology, and in particular relates to a hot press device for the production of high frequency resin substrates. Background Technology

[0002] High-frequency resin substrates are a fundamental material used in high-frequency electronics. For multilayer high-frequency resin substrates, lamination is a crucial step. Hot presses play a key role in this process, providing uniform pressure and temperature to ensure tight bonding between the layers and complete resin curing.

[0003] To improve the production efficiency of high-frequency resin substrates, existing hot presses usually have a cooling function. During the production process, the hot platen of the hot press needs to be repeatedly heated and cooled. Heating and cooling the entire hot platen requires a lot of energy and time, which leads to increased energy consumption and reduced production efficiency of the hot press.

[0004] Therefore, it is necessary to improve the existing hot pressing devices. Utility Model Content

[0005] The purpose of this invention is to overcome the defects in the existing technology and provide a hot pressing device for the production of high-frequency resin substrates, which reduces the energy consumption of the hot press and improves the production efficiency of the hot press.

[0006] To achieve the above objectives, the specific technical solution of the hot pressing device for producing high-frequency resin substrates according to this utility model is as follows:

[0007] A hot pressing device for producing high-frequency resin substrates includes a vertically arranged guide column, a base fixed to the bottom of the guide column, and a top seat fixed to the top of the guide column. Multiple hot pressing plates are slidably connected to the guide column, and the hot pressing plates are arranged vertically. The top seat is provided with a power unit for driving the movement of each hot pressing plate. Each side of two adjacent hot pressing plates is provided with a liftable ejector plate. An elastic reset member is provided between the ejector plate and the hot pressing plate. The ejector plate has a closed inner cavity and a vent pipe communicating with the inner cavity.

[0008] Preferably, the power unit includes a hydraulic cylinder and a first spring disposed between two adjacent hot press plates. The hydraulic cylinder is fixedly connected to the ejector plate, and its telescopic end is fixedly connected to the uppermost hot press plate.

[0009] Preferably, the hot press plate has multiple parallel insertion holes, and a columnar heater is inserted into each insertion hole.

[0010] Preferably, the ejector plate includes a plate body and a cover plate, and the inner cavity is formed by the plate body and the cover plate being sealed and connected together.

[0011] Preferably, the inner cavity is provided with multiple drainage baffles, which are staggered to divide the inner cavity into S-shaped flow channels, and the vent pipe is connected to both ends of the flow channels.

[0012] Preferably, the flow guide baffle has multiple fins arranged along its extension direction.

[0013] Preferably, the elastic reset member includes a slide rod vertically fixedly connected to the top plate, the hot press plate has a guide hole that slides with the slide rod, and a second spring is sleeved on the slide rod, with the two ends of the second spring respectively connected to the slide rod and the hot press plate.

[0014] Preferably, the hot press plate has a notch for accommodating the ejector plate.

[0015] Preferably, the bottom surface of the notch has a corrugated structure, and the top plate matches the notch.

[0016] Preferably, a heat insulation baffle is also provided between the top plate and the base.

[0017] The hot pressing device for producing high-frequency resin substrates of this utility model has the following advantages: After the high-frequency resin substrate is hot-pressed, the hot press controls the separation between the hot pressing plates. At this time, the elastic reset member separates the ejector plate from the hot pressing plate, and the two ejector plates keep clamping the high-frequency resin substrate. At this time, the high-frequency resin substrate is cooled by cooling the ejector plate. Compared with cooling and heating the entire hot pressing plate, cooling and heating the smaller ejector plate can reduce energy loss, increase the cooling and heating speed, thereby reducing the energy consumption of the hot press and improving the production efficiency of the hot press. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the hot pressing device of this utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure between the hot press plate and the ejector plate of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the hot press plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the ejector plate of this utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the ejector plate of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the plate body of this utility model;

[0024] The markings in the diagram are as follows: 101, base; 102, guide post; 103, top seat; 104, hydraulic cylinder; 105, heat insulation baffle; 2, hot press plate; 3, first spring; 4, ejector plate; 5, heater; 201, guide sleeve; 202, insertion hole; 203, guide hole; 204, notch; 401, cover plate; 402, slide rod; 403, second spring; 404, vent pipe; 405, drainage baffle; 406, fin; 407, plate body; 408, inner cavity. Detailed Implementation

[0025] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0026] The terms "top surface," "bottom surface," and "full surface" are used with reference to the normal operating state of the hot pressing device and are only for the convenience of describing this utility model and simplifying the description. They are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] like Figure 1 and 2 As shown, a hot pressing device for producing high-frequency resin substrates includes a vertically arranged guide post 102, a base 101 fixed to the bottom end of the guide post 102, and a top seat 103 fixed to the top end of the guide post 102. Multiple hot pressing plates 2 are slidably connected to the guide post 102, and each hot pressing plate 2 is arranged vertically. The top seat 103 is provided with a power unit for driving each hot pressing plate 2 to move. Each side of two adjacent hot pressing plates 2 is provided with a liftable ejector plate 4. An elastic reset member is provided between the ejector plate 4 and the hot pressing plate 2. The ejector plate 4 has a closed inner cavity 408 inside, and the ejector plate 4 is provided with a vent pipe 404 communicating with the inner cavity 408.

[0028] The aforementioned hot press can be used for hot pressing and cooling of high-frequency resin substrates. Four guide posts 102 are vertically distributed between the top seat 103 and the base 101 of the hot press. Each hot press plate 2 has a guide sleeve 201 at each of its four corners that matches the guide post 102. The guide sleeve 201 cooperates with the guide post 102 to guide the lifting and lowering of the hot press plate 2. The lowermost hot press plate 2 is fixedly connected to the base 101, and the uppermost hot press plate 2 is fixedly connected to the telescopic end of the hydraulic cylinder 104. A first spring 3 in a compressed state is provided between each adjacent hot press plate 2. Hydraulic cylinder 104 provides downward pressure to press the hot pressing plates 2 together. When the hot pressing plates 2 separate, the elastic force of the first spring 3 pushes adjacent hot pressing plates 2 apart. The first spring 3 is sleeved on the guide post 102. The first spring 3 can have different elastic coefficients depending on its installation position. That is, the first spring 3 located at the bottom needs to bear more weight of the hot pressing plates 2, so it needs to have a larger elastic coefficient to ensure that the opening degree between adjacent hot pressing plates 2 is consistent when the hot pressing plates 2 are separated. When hot pressing the high-frequency resin substrate, the high-frequency resin substrate is placed on two ejector plates. Between 4, the hot press plate 2 is then pressed tightly, and the ejector plate 4 is pressed onto the hot press plate 2. The hot press plate 2 heats the ejector plate 4, thereby hot-pressing the high-frequency resin substrate. After hot pressing, the hot press plates 2 separate. At this time, the elastic force of the elastic reset member holds the ejector plate 4, keeping the two ejector plates 4 between the two adjacent hot press plates 2 in a clamping state for the high-frequency resin substrate. At the same time, the ejector plate 4 separates from the hot press plate 2. Then, the air inside the cavity 408 of the ejector plate 2 is controlled to circulate with the outside air through the vent pipe 404, thereby achieving rapid cooling of the ejector plate 4 and the high-frequency resin substrate. After the heating process is complete, the hot press plate 2 continues to separate, thereby causing the ejector plate 4 to separate. This allows the high-frequency resin substrate between the two ejector plates 4 to be replaced, completing the hot pressing operation on the high-frequency resin substrate. Since the ejector plate 4 separates from the hot press plate 2 during the cooling process, only the smaller ejector plate 4 needs to be cooled, while the hot press plate 2 remains at a high temperature. Therefore, the cooling speed is faster and less heat is lost. When hot pressing is performed again in the future, only the ejector plate 4 needs to be heated, which consumes less energy and the heating speed is faster. This reduces the energy consumption of the hot press and improves the production efficiency of the hot press.

[0029] Further improvements include, for example Figure 1 As shown, the power unit includes a hydraulic cylinder 104 and a first spring 3 disposed between two adjacent hot press plates 2. The hydraulic cylinder 104 is fixedly connected to the ejector plate 4, and its telescopic end is fixedly connected to the uppermost hot press plate 2.

[0030] Specifically, the hydraulic cylinder 104 is used to press each hot plate 2 together, reducing the distance between the hot plates 2, and the spring force of the first spring 3 is used to separate each hot plate 2, increasing the distance between the hot plates 2.

[0031] Further improvements include, for example Figure 2 and 3 As shown, the hot press plate 2 has multiple parallel insertion holes 202, and a columnar heater 5 is inserted into each insertion hole 202.

[0032] Specifically, the heater 5 is inserted into the insertion hole 202, making disassembly and assembly more convenient. The parallel insertion holes 202 can make the heater 5 more evenly distributed after installation, thus improving the heating effect on the hot press plate 2.

[0033] Further improvements include, for example Figure 4 As shown, the ejector plate 4 includes a plate body 407 and a cover plate 401, and the inner cavity 408 is formed by the sealed connection of the plate body 407 and the cover plate 401.

[0034] Specifically, the ejector plate 4 is divided into two parts: the plate body 407 and the cover plate 401, which facilitates the assembly of the ejector plate 4 and the subsequent maintenance of the ejector plate 4.

[0035] Further improvements include, for example Figure 5 As shown, the inner cavity 408 is provided with multiple drainage baffles 405, which are staggered to divide the inner cavity 408 into an S-shaped flow channel. The vent pipe 404 is connected to both ends of the flow channel.

[0036] Specifically, when cooling the ejector plate 4, external air enters the inner cavity 408 through one of the air vents 404 via an air pump, then bypasses the guide baffles 405 and exits through another air vent 404, thereby carrying away the heat on the ejector plate 4 and achieving cooling of the ejector plate 4. The airflow follows an S-shaped path inside the inner cavity 408, which increases the flow range and uniformity of the airflow, improving the cooling speed and uniformity of the ejector plate 4. Furthermore, the guide baffles 405 increase the heat exchange area between the airflow and the ejector plate 4, further enhancing the cooling effect. In the subsequent heating process, the corresponding structure can also improve the heating efficiency, thereby increasing the production efficiency of the hot press.

[0037] Further improvements include, for example Figure 5 As shown, multiple fins 406 are arranged on the flow guide baffle 405 along its extension direction. The arrangement of fins 406 can further increase the heat exchange area of ​​the ejector plate 4, thereby improving the cooling and heating efficiency of the ejector plate 4 and improving the production efficiency of the hot press.

[0038] Further improvements include, for example Figure 2-4 As shown, the elastic reset component includes a slide rod 402 vertically fixedly connected to the ejector plate 4. The hot press plate 2 has a guide hole 203 that slides with the slide rod 402. A second spring 403 is sleeved on the slide rod 402. The two ends of the second spring 403 are respectively connected to the slide rod 402 and the hot press plate 2.

[0039] Specifically, the slide bar 402 cooperates with the guide hole 203 to guide and support the ejector plate 4, thereby improving the stability of the ejector plate 4; the elastic force of the second spring 403 can separate the ejector plate 4 from the hot press plate 2.

[0040] Further improvements include, for example Figure 3 As shown, the hot press plate 2 has a notch 204 for accommodating the ejector plate 4. The notch 204 reduces the overall volume of the hot press plate 2 and the ejector plate 4 after combination, improving the ease of use of the hot press; and the notch 204 can position the ejector plate 4, improving the stability of the ejector plate 4 in the pressing state.

[0041] Further improvements include, for example Figure 3 and 6 As shown, the bottom surface of the notch 204 has a corrugated structure, and the ejector plate 4 matches the notch 204. The corrugated structure increases the heat exchange area between the hot press plate 2 and the ejector plate 4, thereby increasing the heating speed of the ejector plate 4 and improving the production efficiency of the hot press. The corrugated structure on one side of the ejector plate 4 increases the heat exchange area between the ejector plate 4 and the air, thereby increasing the cooling speed of the ejector plate 4 when it is cooled down alone, and further improving the production efficiency of the hot press.

[0042] Further improvements include, for example Figure 1 As shown, a heat insulation baffle 105 is also provided between the ejector plate 4 and the base. The heat insulation baffle 105 has a semi-enclosed structure, and its open side can be used to put in and take out the high-frequency resin substrate. By setting the heat insulation baffle 105, the operator can be prevented from accidentally touching the hot press plate 2, thereby improving the safety of the hot press machine. At the same time, it can reduce the heat loss on the hot press plate 2 and improve the energy-saving performance of the hot press machine.

[0043] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A hot pressing device for producing high-frequency resin substrates, comprising a vertically arranged guide post (102), a base (101) fixed to the bottom end of the guide post (102), and a top seat (103) fixed to the top end of the guide post (102), wherein a plurality of hot pressing plates (2) are slidably connected on the guide post (102), the hot pressing plates (2) are arranged vertically, and the top seat (103) is provided with a power unit for driving the movement of each hot pressing plate (2), characterized in that: Each of the two adjacent hot press plates (2) is provided with a liftable ejector plate (4) on its opposite side. An elastic reset member is provided between the ejector plate (4) and the hot press plate (2). The ejector plate (4) has a closed inner cavity (408) inside. The ejector plate (4) is provided with a vent pipe (404) that connects to the inner cavity (408).

2. The hot pressing apparatus for producing high-frequency resin substrates according to claim 1, characterized in that, The power unit includes a hydraulic cylinder (104) and a first spring (3) disposed between two adjacent hot press plates (2). The hydraulic cylinder (104) is fixedly connected to the ejector plate (4), and its telescopic end is fixedly connected to the uppermost hot press plate (2).

3. The hot pressing apparatus for producing high-frequency resin substrates according to claim 1, characterized in that, The hot press plate (2) has multiple parallel insertion holes (202), and a columnar heater (5) is inserted into each insertion hole (202).

4. The hot pressing apparatus for producing high-frequency resin substrates according to claim 1, characterized in that, The ejector plate (4) includes a plate body (407) and a cover plate (401), and the inner cavity (408) is formed by the sealed connection of the plate body (407) and the cover plate (401).

5. The hot pressing apparatus for producing high-frequency resin substrates according to claim 4, characterized in that, The inner cavity (408) is provided with multiple drainage baffles (405), and the drainage baffles (405) are staggered to divide the inner cavity (408) into an S-shaped flow channel. The vent pipe (404) is connected to both ends of the flow channel.

6. The hot pressing apparatus for producing high-frequency resin substrates according to claim 5, characterized in that, The flow guide baffle (405) has multiple fins (406) arranged along its extension direction.

7. The hot pressing apparatus for producing high-frequency resin substrates according to claim 1, characterized in that, The elastic reset component includes a slide rod (402) vertically fixedly connected to the top plate (4), the hot press plate (2) has a guide hole (203) that slides with the slide rod (402), and a second spring (403) is sleeved on the slide rod (402). The two ends of the second spring (403) are respectively connected to the slide rod (402) and the hot press plate (2).

8. The hot pressing apparatus for producing high-frequency resin substrates according to claim 1, characterized in that, The hot press plate (2) has a notch (204) for accommodating the ejector plate (4).

9. The hot pressing apparatus for producing high-frequency resin substrates according to claim 8, characterized in that, The bottom surface of the notch (204) is corrugated, and the top plate (4) matches the notch (204).

10. The hot pressing apparatus for producing high-frequency resin substrates according to claim 1, characterized in that, A heat insulation baffle (105) is also provided between the top plate (4) and the base.

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