Preheating device for lead frame

Abstract

The utility model relates to the technical field of preheating devices, and provides a preheating device for a lead frame, which comprises a base, a plurality of support columns, a heating plate and a heater, one end of each supporting column is arranged on the base, and the other end of each supporting column is arranged on the heating plate; a plurality of heating stations for placing lead frames are arranged on one side, far away from the base, of the heating plate; the heater is arranged on the side, close to the base, of the heating plate and used for heating the heating station. Therefore, the production efficiency of the surface-mounted transmitting tube can be improved.

Description

Technical Field

[0001] The present application relates to the field of preheating devices, and in particular to a preheating device for a lead frame. Background Art

[0002] The SMD emitting tube is an electronic component, usually used for signal transmission or amplification in electronic devices. The SMD emitting tube adopts the SMD packaging form, which has the advantages of small size, light weight, and easy integration. It is widely used in wireless communication, audio amplification and other fields.

[0003] At present, in the production process of SMD transmitting tubes, it is necessary to place the lead frame in a heating mold, then coat the lead frame with epoxy resin to form a mounting patch, and finally cut and separate it to form a SMD transmitting tube. Among them, multiple lead frames are placed in the heating mold in batches by tools to improve the placement efficiency of the lead frames.

[0004] However, in actual applications, in order to improve the effect of epoxy resin coating on the lead frame, each lead frame needs to be preheated individually, and then each lead frame is placed at a collection point and placed in a heating mold in batches using tools. The steps are relatively cumbersome, resulting in low production efficiency of the chip-type transmitting tube. Utility Model Content

[0005] In order to improve the production efficiency of the SMD transmitting tube, the present application provides a preheating device for a lead frame.

[0006] The present application provides a preheating device for a lead frame using the following technical solution:

[0007] A preheating device for a lead frame comprises a base, a plurality of support columns, a heating plate and a heater; one end of the plurality of support columns is arranged on the base, and the other end is arranged on the heating plate; a plurality of heating stations for placing lead frames are arranged on a side of the heating plate away from the base; the heater is arranged on a side of the heating plate close to the base and is used to heat the heating stations.

[0008] By adopting the above technical solution, in actual applications, each lead frame is placed in each heating station to realize the collection of multiple lead frames, so that multiple lead frames can be placed in the heating mold in batches using tools. At the same time, the heater heats the heating station of the heating plate to realize preheating of the lead frame, that is, preheating of each lead frame is realized during the process of placing multiple lead frames in batches in the heating mold, so as to save the time required for preheating, thereby improving the production efficiency of the chip-type transmitting tube.

[0009] Preferably, a plurality of positioning columns are provided on a side of the heating plate away from the base.

[0010] By adopting the above technical solution and providing a plurality of positioning posts, positioning between the tool and the heating plate is achieved, so that the tool can accurately place a plurality of lead frames in batches.

[0011] Preferably, the heating plate is detachably connected to the plurality of support columns.

[0012] By adopting the above technical solution, by setting the heating plate to be detachably connected to multiple support columns, the heating plate with different sizes and numbers of heating stations can be replaced to be suitable for lead frames of various specifications, thereby improving the applicability of the preheating device.

[0013] Preferably, the preheating device further comprises a plurality of fasteners, one end of each of the fasteners is movably inserted into the heating plate and threadedly connected to each of the support columns, and the other end is pressed against the heating plate.

[0014] By adopting the above technical solution and arranging a plurality of fasteners, the structure is simple and the operation is convenient, so as to facilitate the installation and disassembly of the heating plate.

[0015] Preferably, a plurality of embedding grooves are formed on the heating plate, and one end of each of the fasteners away from the support column is embedded in the embedding groove.

[0016] By adopting the above technical solution and providing a plurality of embedding grooves, interference between the tool and the plurality of fasteners can be avoided as much as possible, so as to ensure that the tool can normally pick up the lead frames in the heating station and place them in batches.

[0017] Preferably, the preheating device further comprises a controller, which is disposed on a side of the base close to the heating plate, and is electrically connected to the heater. The controller is provided with a control switch to control the heating operation of the heater.

[0018] By adopting the above technical solution and setting a controller, the heater can be turned on or off by pressing a control switch to control the heating work of the heating plate.

[0019] Preferably, the preheating device also includes a temperature sensor, which is electrically connected to the controller and is used to detect the temperature of the heating plate; wherein, when the temperature of the heating plate reaches a preset value, the temperature sensor sends a signal to the controller, and the controller receives the signal and controls the heater to stop heating.

[0020] By adopting the above technical solution and providing a temperature sensor, the heater can be controlled in time to stop heating the heating plate, thereby avoiding overheating and damage to the lead frame as much as possible.

[0021] Preferably, the controller is also provided with a temperature display.

[0022] By adopting the above technical solution, a temperature display is provided to display the temperature of the heating plate in real time, and it is convenient to set a preset value of the temperature of the heating plate.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. In actual application, each lead frame is placed in each heating station to realize the collection of multiple lead frames, so that multiple lead frames can be placed in the heating mold in batches using tools. At the same time, the heater heats the heating station of the heating plate to realize the preheating of the lead frame, that is, the preheating of each lead frame is realized in the process of placing multiple lead frames in batches in the heating mold, so as to save the time required for preheating, thereby improving the production efficiency of the SMD transmitting tube;

[0025] 2. By setting the heating plate to be detachably connected to multiple support columns, the heating plate with different sizes and numbers of heating stations can be replaced to be suitable for lead frames of various specifications, thereby improving the applicability of the preheating device;

[0026] 3. By setting a temperature sensor, the heater can be controlled in time to stop heating the heating plate, thereby avoiding overheating and damage to the lead frame as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the preheating device in the embodiment of the present application;

[0028] Figure 2 It is a schematic diagram of the explosion structure of the preheating device in the embodiment of the present application.

[0029] Figure numerals: 1. base; 2. support column; 3. heating plate; 31. heating station; 32. positioning column; 33. embedding groove; 4. heater; 5. fastener; 6. controller; 61. control switch; 62. temperature display. DETAILED DESCRIPTION

[0030] The following is an explanation of the implementation of the present application by specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the information disclosed in the present application. The present application can also be implemented or applied through other different specific implementations, and the details in the present application can also be modified or changed in various ways according to different viewpoints and application systems without departing from the spirit of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0031] The present application may be embodied in a variety of different forms and is not limited to the embodiments described herein. In the representation of the present application, reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present application.

[0032] In addition, the terms "first" and "second" are only used to indicate the target, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the representation of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] The following is combined with Figure 1-2 This application is described in further detail.

[0034] An embodiment of the present application discloses a preheating device for a lead frame.

[0035] Reference Figure 1 The preheating device includes a base 1, a plurality of support columns 2, a heating plate 3 and a heater 4. The base 1 and the heating plate 3 are both arranged in a rectangular plate shape. The base 1 is parallel to the heating plate 3, and the heating plate 3 is located above the base 1. In this embodiment, there are four support columns 2 arranged in a rectangular column shape. The four support columns 2 are distributed in a rectangular shape. The lower end of each support column 2 is fixedly connected to the upper side of the base 1, and the upper end is fixedly connected to the lower side of the heating plate 3.

[0036] Among them, the upper side of the heating plate 3 is protruded to form a plurality of heating stations 31, and eight heating stations 31 are used for explanation. The eight heating stations 31 are distributed in four rows and two columns. The heating stations 31 are used to place the lead frame, and the heater 4 is fixedly connected to the lower side of the heating plate 3 to heat the heating plate 3, thereby heating the lead frame of each heating station 31. It should be noted that the heater 4 can use different types of heating elements such as electric heating tubes or infrared heaters, which are not limited in this application.

[0037] In practical applications, eight lead frames are first distributed and placed in eight heating stations 31 to collect multiple lead frames, so that it is convenient to use tools to place multiple lead frames in batches in the heating mold. At the same time, the heater 4 heats the eight heating stations 31 of the heating plate 3 to preheat the multiple lead frames, that is, preheat each lead frame during the process of placing multiple lead frames in batches in the heating mold, so as to save the time required for preheating, thereby improving the production efficiency of the SMD transmitting tube.

[0038] In some embodiments, a plurality of positioning posts 32 are protruded from the upper side of the heating plate 3. The plurality of positioning posts 32 are cylindrically arranged and spaced apart along the circumference of the heating plate 3. The plurality of positioning posts 32 cooperate with the tool to achieve positioning between the tool and the heating plate 3, thereby facilitating the tool to accurately place a batch of multiple lead frames in the heating mold.

[0039] Reference Figure 1 and Figure 2 In some embodiments, the heating plate 3 is detachably connected to the four support columns 2, that is, the heating plate 3 can be individually disassembled, and when the heating plate 3 is damaged, it is convenient to repair or replace the heating plate 3. At the same time, the heating plate 3 with different sizes and numbers of heating stations 31 can also be replaced to be suitable for lead frames of various specifications, thereby improving the applicability of the preheating device.

[0040] In some embodiments, the preheating device also includes a plurality of fasteners 5, the number of the fasteners 5 corresponds to the number of the support columns 2, the fasteners 5 are bolts, the lower end of each fastener 5 is movably inserted into the heating plate 3 and is threadedly connected to each support column 2, and the upper end of each fastener 5 is pressed against the heating plate 3 to achieve a detachable connection of the heating plate 3. The structure is simple and the operation is convenient, thereby facilitating the installation and disassembly of the heating plate 3.

[0041] In some embodiments, the heating plate 3 is provided with embedding grooves 33 corresponding to the number of fasteners 5, and the upper end of each fastener 5 is embedded in the embedding groove 33, so that the fastener 5 does not protrude from the heating plate 3, so as to ensure the flatness of the heating plate 3 at the fastener 5, and to avoid interference between the tool and the multiple fasteners 5 as much as possible, so as to ensure that the tool can normally pick up and place the lead frames in the heating station 31 in batches.

[0042] Reference Figure 1 In some embodiments, the preheating device also includes a controller 6, which is fixedly connected to the upper side of the base 1, and is electrically connected to the heater 4. A control switch 61 is provided on the controller 6. By pressing the control switch 61, the heater 4 can be turned on or off to control the heating work of the heater 4 on the heating plate 3.

[0043] In some embodiments, the preheating device also includes a temperature sensor (not shown in the figure), which is arranged at the heating plate 3 and electrically connected to the controller 6 to detect the temperature of the heating plate 3. At the same time, the heating plate 3 sends the detection signal to the controller 6. When the temperature of the heating plate 3 reaches a preset value, the controller 6 receives the detection signal and controls the heater 4 to stop working, so as to avoid the temperature of the heating plate 3 being too high, thereby avoiding overheating and damage of the lead frame, so as to improve the stability of the lead frame preheating.

[0044] In some embodiments, the controller 6 is also provided with a temperature display 62, which can display the real-time temperature of the heating plate 3 according to the detection signal of the temperature sensor received by the controller 6, so that the staff can understand the temperature of the heating plate 3 in real time. At the same time, during the process of setting the preset heating temperature of the heating plate 3, the temperature display 62 can be displayed to facilitate setting the preset value of the temperature of the heating plate 3.

[0045] The implementation principle of this embodiment is as follows: in actual application, eight lead frames are first distributed and placed in eight heating stations 31 to realize the collection of multiple lead frames, so as to facilitate the use of tools to place multiple lead frames in batches in the heating mold. At the same time, the heater 4 heats the eight heating stations 31 of the heating plate 3 to realize the preheating of multiple lead frames, that is, the preheating of each lead frame is realized during the process of placing multiple lead frames in batches in the heating mold, so as to save the time required for preheating, thereby improving the production efficiency of the SMD transmitting tube.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A preheating device for a lead frame, characterized in that: The invention comprises a base (1), a plurality of support columns (2), a heating plate (3) and a heater (4); one end of the plurality of support columns (2) is arranged on the base (1), and the other end is arranged on the heating plate (3); a plurality of heating stations (31) for placing lead frames are arranged on a side of the heating plate (3) away from the base (1); and the heater (4) is arranged on a side of the heating plate (3) close to the base (1) and is used to heat the heating stations (31).

2. A preheating device for a lead frame according to claim 1, characterized in that: A plurality of positioning columns (32) are provided on a side of the heating plate (3) away from the base (1).

3. A preheating device for a lead frame according to claim 1, characterized in that: The heating plate (3) is detachably connected to the plurality of support columns (2).

4. A preheating device for a lead frame according to claim 3, characterized in that: The preheating device further comprises a plurality of fasteners (5), one end of each fastener (5) being movably inserted into the heating plate (3) and threadedly connected to each support column (2), and the other end being tightly pressed against the heating plate (3).

5. A preheating device for a lead frame according to claim 4, characterized in that: The heating plate (3) is provided with a plurality of embedding grooves (33), and one end of each fastener (5) away from the support column (2) is embedded in the embedding groove (33).

6. A preheating device for a lead frame according to claim 1, characterized in that: The preheating device further comprises a controller (6), wherein the controller (6) is arranged on a side of the base (1) close to the heating plate (3), and the controller (6) is electrically connected to the heater (4). The controller (6) is provided with a control switch (61) for controlling the heating operation of the heater (4).

7. A preheating device for a lead frame according to claim 6, characterized in that: The preheating device further comprises a temperature sensor, the temperature sensor being electrically connected to the controller (6), and the temperature sensor being used to detect the temperature of the heating plate (3); wherein when the temperature of the heating plate (3) reaches a preset value, the temperature sensor sends a signal to the controller (6), and the controller (6) receives the signal and controls the heater (4) to stop heating.

8. A preheating device for a lead frame according to claim 7, characterized in that: The controller (6) is also provided with a temperature display (62).

Images