Terminal heating device and terminal injection molding system

Abstract

The application discloses a terminal heating device and a terminal injection molding system, and belongs to the technical field of terminal manufacturing. The terminal heating device comprises a body and a heating element. One side of the body along a first direction is provided with a conveying groove. The conveying groove penetrates through the body along a second direction and is used for conveying terminals. The heating element is in heat conduction connection with the body and is used for heating the terminal when the terminal is located in the conveying groove. The first direction intersects the second direction. The terminal heating device and the terminal injection molding system can uniformly and rapidly increase the temperature of the terminal when the terminal moves in the conveying groove, ensure that the terminal maintains a high temperature during the injection molding stage, and significantly slow down the cooling speed of the injection molding material during the injection molding process. By keeping the temperature of the injection molding material at a relatively high temperature, the flowability of the injection molding material is effectively improved, and the problem of injection molding insufficiency caused by insufficient flowability is reduced.

Description

Technical Field

[0001] This application relates to the field of terminal manufacturing technology, and in particular to a terminal heating device and a terminal injection molding system. Background Technology

[0002] In the field of terminal injection molding, specialized injection molding equipment is used to inject molding material onto metal terminals, ensuring the material covers the predetermined areas of the terminal and forms a tightly integrated structure. However, when the flowability of the molding material is poor, it may fail to fully fill every detail of the mold, resulting in incomplete injection and affecting the yield rate. Utility Model Content

[0003] This application provides a terminal heating device and a terminal injection molding system to at least partially solve the above-mentioned technical problems.

[0004] To achieve the above objectives, according to a first aspect of this application, a terminal heating device is provided, comprising a body and a heating element. The body has a conveying groove on one side along a first direction, and the conveying groove extends through the body along a second direction, for a terminal to pass through. The heating element is thermally connected to the body and is used to heat the terminal when it is located within the conveying groove. The first direction intersects the second direction.

[0005] According to a second aspect of this application, a terminal injection molding system is provided, comprising a terminal heating device, a terminal conveying device, and an injection molding device as described above. The terminal conveying device is connected to the inlet end of a conveying channel, and the injection molding device is connected to the outlet end of the conveying channel.

[0006] The terminal heating device and terminal injection molding system of this application embodiment effectively heat the terminals before injection molding. Through the provided heating element, the temperature of the terminals can be uniformly and rapidly increased as they move in the conveying groove, ensuring that the terminals maintain a high temperature during the injection molding stage. This significantly slows down the cooling rate of the injection molding material during the injection process. By maintaining the injection molding material at a relatively high temperature, the fluidity of the injection molding material is effectively improved, ensuring that the injection molding material can fully fill the mold during the injection process, reducing the problem of incomplete injection due to insufficient fluidity.

[0007] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0010] Figure 1 This is a schematic diagram of the terminal heating device of this application; Figure 2 This is a top view of the main body of the terminal heating device of this application; Figure 3 This is a schematic diagram of the conveying groove and mating groove in the terminal heating device of this application; Figure 4 This is a cross-sectional schematic diagram of the main body of the terminal heating device of this application; Figure 5 This is a schematic diagram of the terminal injection molding system of this application; Figure 6 This is a bottom view of the main body of the terminal heating device in this application.

[0011] Explanation of reference numerals in the attached figures: 1. Body; 11. Conveying groove; 111. Mating groove; 112. First guide slope; 113. Second guide slope; 12. Sensing hole; 13. Heating hole; 14. Clearance groove; 15. Mounting groove; 16. Threading groove; 2. Terminal; 21. Torsion part; 3. Heating element; 4. Cover plate; 5. Terminal conveying device; 6. Injection molding device; 61. Ejection plate; 62. Guide column; 7. First heat insulation plate; 8. Second heat insulation plate; 9. Connecting block; X, First direction; Y, Second direction; Z, Third direction. Detailed Implementation

[0012] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0013] In this field, traditional mold designs typically only heat the male and female mold cores, while the terminals remain at room temperature. This design can cause problems when handling injection molding materials with poor flowability, such as LCP (liquid crystal polymer). Because the terminal surfaces are cooled, when the LCP material flows over these cold terminal surfaces, the material cools down rapidly, further reducing its flowability and easily leading to incomplete injection molding, meaning the mold is not fully filled, thus directly affecting the product yield.

[0014] In view of this, please refer to Figure 1 This application provides a terminal heating device, which aims to overcome at least one of the above-mentioned technical problems.

[0015] Please see Figure 1 , Figure 2 The terminal heating device includes a body 1 and a heating element 3. The body 1 has a conveying groove 11 along one side of the first direction X. The conveying groove 11 extends through the body 1 along the second direction Y and is used for the terminal 2 to pass through. The heating element 3 is thermally connected to the body 1 and is used to heat the terminal 2 when it is located in the conveying groove 11. The first direction X intersects the second direction Y, and can be optionally perpendicular to the second direction Y.

[0016] In this embodiment, during injection molding, adjacent terminals 2 are connected, and the terminals 2 remain connected after injection molding. A terminal 2 transmission mechanism is arranged at the output end of the injection molding device 6 to move the rows of terminals 2. In other embodiments, a body 1 adapted to the terminal 2 transmission mechanism can be set according to the specific structure of the terminal 2 transmission mechanism, so as to achieve simple modification on the existing terminal 2 production line and prevent incomplete injection molding.

[0017] In this embodiment, the heating element 3 raises the temperature of the terminal 2 when it is conveyed in the conveying groove 11, so that the terminal 2 is at a higher temperature during injection molding. During the injection molding process, when the injection material comes into contact with the terminal 2 at a higher temperature, the cooling rate of the injection material is smaller, that is, the temperature of the injection material is higher during injection molding, so that the flow performance of the injection material is kept in a relatively good state, reducing the problem of incomplete injection molding, and reducing the defect rate and scrap.

[0018] In this embodiment, a heating element 3 is installed in the conveying trough 11 to heat the terminal 2, raising its temperature during conveying. During injection molding, the terminal 2 remains at a higher temperature. This slows down the cooling rate of the injection material when it comes into contact with the hotter terminal 2, allowing the injection material to maintain a higher temperature and good fluidity during the injection process. This effectively reduces incomplete injection molding, significantly lowering the rate of defective products and scrap, and improving production efficiency and product quality. Furthermore, injection molding at a higher temperature on the terminal 2 improves the filling effect of the injection material, enhancing the overall performance and reliability of the product.

[0019] Please see Figure 4 In some embodiments, the heating element 3 is embedded in the body 1, and the body 1 has a heating hole 13. The heating hole 13 extends along the second direction Y. The heating element 3 passes through the heating hole 13, which can heat the entire body 1 so that the terminal 2 can always receive the heat transferred by the body 1 when it is transported in the conveying groove 11. Furthermore, placing the heating element 3 in the body 1 can prevent the heat generated by the heating element 3 from being lost.

[0020] Please see Figure 6 In some embodiments, the body 1 also has a wire-passing groove 16, which is located at the entrance end of the heating hole 13 near the conveying groove 11 and communicates with the heating hole 13. Since the body 1 needs to be used in conjunction with the injection molding device 6 and the terminal conveying device 5, the cable connected to the heating element 3 needs to be properly arranged to avoid the injection molding device 6 and the terminal conveying device 5 connected to both ends of the body 1. By providing the wire-passing groove 16 on the body 1, the cable of the heating element 3 can pass through the wire-passing groove 16, avoiding interference with the injection molding device 6 and the terminal conveying device 5.

[0021] Please see Figure 4 In some embodiments, the terminal heating device includes multiple heating elements 3. These heating elements 3 are arranged at certain intervals, so that the terminals 2 in the conveying groove 11 can receive heat more evenly during heating, and the terminals can achieve a uniform temperature distribution during the conveying process, thereby improving the heating effect. In addition, the multiple heating elements 3 can be arranged in parallel, which not only enhances the uniformity of heating, but also optimizes the utilization efficiency of thermal energy, making the entire heating process more efficient.

[0022] Please see Figure 1 In some embodiments, the terminal heating device further includes a cover plate 4 connected to the main body 1, which covers at least a portion of the opening of the conveying trough 11 along the first direction X, thereby reducing heat loss within the conveying trough 11 and improving the energy-saving effect of the device. Furthermore, the cover plate 4 effectively prevents foreign objects from entering, ensuring the safety and operational efficiency of the device.

[0023] Please see Figure 3 In some embodiments, the width of the conveying groove 11 along the third direction Z is adapted to the length of the terminal 2, making the conveying process of the terminal 2 within the conveying groove 11 more stable. The terminal 2 has a torsion portion 21, which allows the terminal 2 and the injection molding material to have good holding force after injection molding. The bottom of the conveying groove 11 is provided with a mating groove 111, which penetrates the body 1 along the second direction Y. The width of the mating groove 111 along the third direction Z is adapted to the length of the torsion portion 21 on the terminal 2, facilitating the accommodation of the torsion portion 21 on the terminal 2, so that the torsion portion 21 will not interfere with the conveying process of the terminal 2 when it is conveyed within the conveying groove 11. The third direction Z intersects both the first direction X and the second direction Y, and can be optionally perpendicular to both the first direction X and the second direction Y.

[0024] Please see Figure 3 In some embodiments, the two walls at the inlet end of the conveying trough 11 are provided with a first guide slope 112, and the bottom of the inlet end of the conveying trough 11 is provided with a second guide slope 113. The first guide slope 112 and the second guide slope 113 are used to position and guide the terminal 2 when it is conveyed to the conveying trough 11, so that the terminal 2 can be automatically aligned with the conveying trough 11 during the process of being conveyed from the terminal conveying device 5 to the conveying trough 11.

[0025] Please see Figure 2 In some embodiments, the main body 1 is provided with a sensing hole 12, and a sensing device is installed in the sensing hole 12 for real-time monitoring of the presence status of the terminals 2 in the conveying groove 11. This sensing device can determine whether the terminals 2 are present in the conveying groove 11. When no terminals 2 are detected in the conveying groove 11, the system can automatically shut off the heating element 3 to save energy and stop the injection molding process, thereby improving production efficiency, reducing waste, and lowering operating costs. The sensing device can be an infrared sensor, a photoelectric sensor, a contact sensor, etc., as long as it can be used to sense the presence status of the terminals 2.

[0026] In some embodiments, the body 1 is made of copper or aluminum. This allows for faster heat conduction, facilitating the rapid heating of the terminal 2 to the required temperature. It also prevents the body 1 from scratching the terminal 2. Understandably, to achieve this, a material with a lower hardness than the terminal 2 must be selected for the body 1. In this embodiment, the terminal 2 remains in the terminal heating device for 48 seconds, rapidly raising its surface temperature from room temperature to 80 degrees Celsius. This effectively improves the yield rate when injection molding LCP material.

[0027] Please see Figure 5Accordingly, this application also provides a terminal injection molding system, including the terminal heating device, terminal conveying device 5, and injection molding device 6 as described above. The terminal conveying device 5 is connected to the inlet end of the conveying trough 11, and the injection molding device 6 is connected to the outlet end of the conveying trough 11. During injection molding, the terminal 2 is continuously conveyed by the terminal conveying device 5 to the terminal heating device, heated to a preset temperature in the conveying trough 11 of the terminal heating device, and then conveyed to the injection molding device 6 for injection molding, thereby increasing the temperature of the terminal 2 and preventing incomplete injection.

[0028] Please see Figure 5 In some embodiments, the injection molding device 6 includes an ejector plate 61, and the terminal injection molding system further includes a first heat insulation plate 7 and a second heat insulation plate 8. The first heat insulation plate 7 connects the body 1 and the ejector plate 61, and the second heat insulation plate 8 connects the body 1 and the terminal conveying device 5. The terminal heating device and the terminal conveying device 5 need to move synchronously with the ejector plate 61 so that the terminals 2 remain connected as a single unit after injection molding. The placement of the first heat insulation plate 7 between the body 1 and the ejector plate 61, and the placement of the second heat insulation plate 8 between the body 1 and the terminal conveying device 5, prevents heat from the body 1 from being conducted to the ejector plate 61 and the terminal conveying device 5, thus preventing thermal expansion and problems such as jamming. The first heat insulation plate 7 and the second heat insulation plate 8 can be selected as epoxy fiberglass cloth substrates, which have good thermal insulation performance.

[0029] Please see Figure 5 In some embodiments, the injection molding device 6 further includes a guide post 62 for guiding the ejector plate 61 during the ejection process. A relief groove 14 is provided on the body 1 to accommodate the guide post 62. The guide post 62 makes the ejection process smoother.

[0030] Please see Figure 5 , Figure 6 In some embodiments, the terminal injection molding system further includes a connecting block 9, and the body 1 also has a mounting groove 15 for connecting the connecting block 9. The connecting block 9 connects the first heat insulation plate 7 and the body 1. By setting the connecting block 9, the connecting block 9 can be connected to the first heat insulation plate 7, and then the body 1 can be connected to the connecting block 9, making the process of connecting the body 1 and the second heat insulation plate 8 simpler. The mounting groove 15 makes the installation of the connecting block 9 simpler.

[0031] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0033] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0034] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A terminal heating device, characterized in that, include: The main body (1) has a conveying groove (11) on one side along the first direction (X), the conveying groove (11) penetrates the main body (1) along the second direction (Y), and the conveying groove (11) is used for the terminal (2) to pass through; A heating element (3) is thermally connected to the body (1), and the heating element (3) is used to heat the terminal (2) when the terminal (2) is located in the conveying groove (11); Wherein, the first direction (X) intersects with the second direction (Y).

2. The terminal heating device according to claim 1, characterized in that, The heating element (3) is disposed in the conveying groove (11); or the heating element (3) is connected to the outside of the body (1); or the heating element (3) is embedded in the body (1).

3. The terminal heating device according to claim 2, characterized in that, When the heating element (3) is embedded in the body (1), the body (1) has a heating hole (13) which extends along the second direction (Y) and the heating element (3) passes through the heating hole (13).

4. The terminal heating device according to claim 3, characterized in that, The main body (1) also has a threading groove (16), which is located at the entrance end of the heating hole (13) near the conveying groove (11) and communicates with the heating hole (13).

5. The terminal heating device according to any one of claims 1 to 4, characterized in that, The terminal heating device includes a plurality of heating elements (3), which are spaced apart.

6. The terminal heating device according to claim 1, characterized in that, It also includes a cover plate (4) connected to the body (1), the cover plate (4) being used to at least partially cover the opening of the conveying channel (11) along the first direction (X).

7. The terminal heating device according to claim 1, characterized in that, The width of the conveying groove (11) along the third direction (Z) is adapted to the length of the terminal (2); The bottom of the conveying groove (11) is provided with a mating groove (111), the mating groove (111) penetrates the body (1) along the second direction (Y), and the width of the mating groove (111) along the third direction (Z) is adapted to the length of the torsion part (21) on the terminal (2); The third direction (Z) intersects both the first direction (X) and the second direction (Y).

8. The terminal heating device according to claim 1, characterized in that, The two walls at the inlet end of the conveying trough (11) are provided with a first guide slope (112), and the bottom of the inlet end of the conveying trough (11) is provided with a second guide slope (113). The first guide slope (112) and the second guide slope (113) are used for positioning and guiding the terminal (2) when it is conveyed to the conveying trough (11).

9. The terminal heating device according to claim 1, characterized in that, The main body (1) is provided with a sensing hole (12), and a sensing device is provided in the sensing hole (12) for monitoring the presence status of the terminal (2) in the conveying groove (11).

10. The terminal heating device according to claim 1, characterized in that, The body (1) is made of copper or aluminum.

11. A terminal injection molding system, characterized in that, The device includes a terminal heating device, a terminal conveying device (5), and an injection molding device (6) as described in any one of claims 1 to 10; the terminal conveying device (5) is connected to the inlet end of the conveying channel (11), and the injection molding device (6) is connected to the outlet end of the conveying channel (11).

12. The terminal injection molding system according to claim 11, characterized in that, The injection molding device (6) includes an ejector plate (61); the terminal injection molding system also includes a first heat insulation plate (7) and a second heat insulation plate (8), the first heat insulation plate (7) connecting the body (1) and the ejector plate (61), and the second heat insulation plate (8) connecting the body (1) and the terminal conveying device (5).

13. The terminal injection molding system according to claim 12, characterized in that, The injection molding device (6) further includes a guide post (62), and the body (1) is provided with a relief groove (14) for accommodating the guide post (62).

14. The terminal injection molding system according to claim 12, characterized in that, The terminal injection molding system further includes a connecting block (9), and the body (1) also has a mounting groove (15) for connecting the connecting block (9), which connects the first heat insulation plate (7) and the body (1).

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