Liquid silicone rubber coating mold for FPC (flexible printed circuit)

Abstract

The utility model provides a liquid silicone rubber coating mold for an FPC (flexible printed circuit), and belongs to the technical field of silicone rubber molds. The liquid silicone rubber coating mold for the FPC comprises a lower mold and a demolding assembly. An upper mold is slidably connected to the surface of the lower mold, the rod body is slidably inserted into the sleeve, the demolding assembly comprises a transmission part and a rotating part, the transmission part and the rotating part are both rotatably installed in the lower mold, the transmission part is in transmission connection with the rotating part, one end of the rotating part is connected with a lead screw, and the other end of the rotating part is connected with an upper mold. The surface of the lead screw is sleeved with a demolding plate in a threaded mode. According to the utility model, through the cooperation of the upper die and the lower die, the flexible circuit board can be processed and formed, then through the cooperation of the transmission member and the rotating member, the demoulding plate moves upwards along the inner wall of the die cavity, and the demoulding plate can eject the flexible circuit board out of the die cavity, thereby reducing the inconvenience of rapid demoulding of a formed product by the die; and the subsequent product processing and production possibility is influenced.

Description

Technical Field

[0001] The utility model relates to the field of silicone molds, in particular to a liquid silicone mold for an FPC flexible circuit board package. Background Art

[0002] Flexible printed circuit (FPC) is a highly reliable and extremely flexible printed circuit board made of polyimide or polyester film as the substrate. FPC is also called soft circuit board or flexible circuit board. It is highly favored for its excellent properties such as light weight, thin thickness, and free bending and folding.

[0003] At present, liquid silicone molds are required in the processing of flexible circuit boards. Existing liquid silicone molds usually do not have a structure to eject the product to achieve demolding. This makes it inconvenient to quickly demold the molded product, affecting subsequent product processing and production. It cannot meet people's usage needs well, making the liquid silicone mold not very practical. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an FPC flexible circuit board package liquid silicone mold, which aims to improve the problem that the existing liquid silicone mold usually does not have a structure to eject the product to achieve demolding, resulting in the mold being inconvenient to quickly demold the molded product.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a FPC flexible circuit board package liquid silicone mold, comprising a lower mold and a demoulding component.

[0007] A rod body is installed on the surface of the lower mold, and the upper mold is slidably connected to the surface of the lower mold, a sleeve is installed on the surface of the upper mold, the rod body is slidably inserted in the sleeve, a mold cavity is opened on the surface of the lower mold, a spring is connected between the lower mold and the upper mold, the spring is sleeved on the rod body and the surface of the sleeve, the demoulding assembly includes a transmission member and a rotating member, the transmission member and the rotating member are both rotatably installed in the lower mold, and the transmission member is transmission-connected to the rotating member, one end of the rotating member is connected to a screw rod, a stripping plate is threadedly sleeved on the surface of the screw rod, and the stripping plate fits the inner wall of the mold cavity.

[0008] In an embodiment of the utility model, the surfaces of the lower mold and the upper mold are both provided with mounting holes, and a plurality of the mounting holes are provided.

[0009] In one embodiment of the utility model, the transmission member includes a connecting rod, a first bevel gear and a handwheel, the connecting rod is rotatably installed in the lower mold, and the connecting rod is respectively connected to the first bevel gear and the handwheel, and the first bevel gear is transmission-connected to the rotating member.

[0010] In an embodiment of the present utility model, the lower mold is provided with a cavity, and the first bevel gear and the rotating member are both located in the cavity.

[0011] In an embodiment of the utility model, the rotating member includes a rotating rod and a second bevel gear, the rotating rod is rotatably installed in the lower mold, the rotating rod is respectively connected to the second bevel gear and the screw rod, and the second bevel gear is meshingly connected to the first bevel gear.

[0012] In an embodiment of the utility model, the lower surface of the stripping plate is connected to an internal threaded barrel, and the internal threaded barrel is threadedly sleeved on the surface of the screw rod.

[0013] In an embodiment of the utility model, the bottom of the internally threaded cylinder is connected to a limiting frame, a groove is provided in the lower mold, and the limiting frame fits with the inner wall of the groove.

[0014] The beneficial effect of the utility model is as follows: the utility model obtains an FPC flexible circuit board package liquid silicone mold through the above design. When in use, the upper mold can be contacted with the lower mold through the cooperation of the upper mold, the sleeve and the rod body, which is beneficial to the processing and molding of the flexible circuit board. Through the cooperation of the transmission part and the rotating part, the transmission part drives the rotating part and the screw to rotate, which can drive the stripping plate to move upward along the inner wall of the mold cavity, which is beneficial to the stability of the stripping plate during the movement, and the stripping plate will eject the flexible circuit board from the mold cavity, reducing the possibility that the mold is inconvenient to quickly demold the molded product, affecting the subsequent product processing and production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a FPC flexible circuit board package liquid silicone mold provided by an embodiment of the utility model;

[0017] Figure 2 A partial cross-sectional view of the front structure of the FPC flexible circuit board package liquid silicone mold provided by the embodiment of the utility model;

[0018] Figure 3 A schematic diagram of the structure of the connection between the transmission member and the rotating member provided in the embodiment of the utility model;

[0019] Figure 4 A schematic structural diagram of the connection between an internally threaded barrel and a stripping plate provided in an embodiment of the utility model.

[0020] In the figure: 100-lower mold; 110-rod body; 120-upper mold; 121-spring; 122-mounting hole; 130-sleeve; 140-mold cavity; 150-cavity; 160-groove; 200-mold stripping assembly; 210-transmission member; 211-connecting rod; 212-first bevel gear; 213-handwheel; 220-rotating member; 221-rotating rod; 222-second bevel gear; 230-screw; 240-stripping plate; 241-internal threaded cylinder; 242-limiting frame. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example

[0023] See also Figure 1-Figure 4 The utility model provides a FPC flexible circuit board package liquid silicone mold, including a lower mold 100 and a demoulding component 200.

[0024] Among them, the demolding component 200 is installed in the lower mold 100. Through the demolding component 200, the molded flexible circuit board can be ejected from the mold cavity 140, reducing the possibility that the mold is inconvenient to quickly demold the molded product, affecting the subsequent product processing and production.

[0025] See also Figure 1-Figure 2 A rod body 110 is installed on the surface of the lower mold 100, and the upper mold 120 is slidably connected to the surface of the lower mold 100. A sleeve 130 is installed on the surface of the upper mold 120. The rod body 110 is slidably inserted into the sleeve 130. A mold cavity 140 is opened on the surface of the lower mold 100.

[0026] In this embodiment, a spring 121 is connected between the lower mold 100 and the upper mold 120, and the spring 121 is sleeved on the surface of the rod body 110 and the sleeve 130. In a specific implementation, when the upper mold 120 moves downward, it will compress the spring 121, which is beneficial to the shock absorption and buffering of the upper mold 120. The spring 121 is sleeved on the surface of the rod body 110 and the sleeve 130, which is beneficial to the stability of the spring 121 on the device; the surfaces of the lower mold 100 and the upper mold 120 are provided with mounting holes 122, and a plurality of mounting holes 122 are provided. In a specific implementation, a plurality of mounting holes 122 are provided on the surfaces of the lower mold 100 and the upper mold 120, which is beneficial to the installation of the lower mold 100 and the upper mold 120 on the designated equipment.

[0027] See also Figure 1-Figure 4 The demoulding assembly 200 includes a transmission member 210 and a rotating member 220, both of which are rotatably installed in the lower mold 100, and the transmission member 210 is transmission-connected to the rotating member 220, one end of the rotating member 220 is connected to a screw rod 230, and a stripping plate 240 is threadedly sleeved on the surface of the screw rod 230, and the stripping plate 240 is in contact with the inner wall of the mold cavity 140. In a specific implementation, the transmission member 210 is rotated to limit the rotating member 220, thereby driving the screw rod 230 to rotate, so that the stripping plate 240 threadedly sleeved on the surface of the screw rod 230 moves upward along the inner wall of the mold cavity 140, reducing the possibility that the stripping plate 240 will deviate during the movement of the stripping plate 240, and the stripping plate 240 will drive the flexible circuit board to move upward, so as to facilitate the removal of the flexible circuit board from the lower mold 100, reducing the possibility that the mold is not convenient for quickly demolding the molded product, affecting the subsequent product processing and production.

[0028] In this embodiment, the transmission member 210 includes a connecting rod 211, a first bevel gear 212 and a hand wheel 213. The connecting rod 211 is rotatably installed in the lower mold 100, and the connecting rod 211 is respectively connected to the first bevel gear 212 and the hand wheel 213. The first bevel gear 212 is transmission-connected to the rotating member 220. The lower mold 100 is provided with a cavity 150, and the first bevel gear 212 and the rotating member 220 are both located in the cavity 150. In a specific implementation, the first bevel gear 212 and the rotating member 220 are both arranged in the cavity 150 of the lower mold 100 to reduce the possibility of damage to the first bevel gear 212 and the rotating member 220 due to external influences.

[0029] The rotating member 220 includes a rotating rod 221 and a second bevel gear 222, and the rotating rod 221 is rotatably installed in the lower mold 100, and the rotating rod 221 is respectively connected to the second bevel gear 222 and the screw rod 230, and the second bevel gear 222 is meshed with the first bevel gear 212; the lower surface of the stripping plate 240 is connected with an internal threaded cylinder 241, and the internal threaded cylinder 241 is threadedly sleeved on the surface of the screw rod 230; the bottom of the internal threaded cylinder 241 is connected to a limiting frame 242, and a groove 160 is opened in the lower mold 100, and the limiting frame 242 fits with the inner wall of the groove 160. In specific implementation, when the screw rod 230 rotates, the internal threaded cylinder 241 and the limiting frame 242 will move upward along the inner wall of the groove 160, which is beneficial to improve the stability of the internal threaded cylinder 241 and the stripping plate 240 during the movement process, and at the same time reduce the possibility that the internal threaded cylinder 241 moves too far and falls off from the groove 160.

[0030] Specifically, the working principle of the FPC flexible circuit board package liquid silicone mold is as follows: when in use, by moving the upper mold 120 downward, the sleeve 130 on its surface moves downward along the surface of the rod body 110, which is conducive to improving the stability of the upper mold 120 during the movement, and the upper mold 120 will compress the spring 121, which is conducive to the shock absorption and buffering effect of the upper mold 120. Through the cooperation of the upper mold 120 and the lower mold 100, the flexible circuit board is processed and formed, and by turning the hand wheel 213, it drives The connecting rod 211 and the first bevel gear 212 rotate, and the first bevel gear 212 can drive the second bevel gear 222 to rotate, and then drive the rotating rod 221 and the screw rod 230 to rotate, so that the internal threaded tube 241 and the limit frame 242 can move upward along the inner wall of the groove 160, which is beneficial to the stability of the internal threaded tube 241 and the stripping plate 240 during movement, and the stripping plate 240 will eject the flexible circuit board from the mold cavity 140, reducing the possibility that the mold is inconvenient to quickly demold the molded product, affecting the subsequent product processing and production.

[0031] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A FPC flexible circuit board package liquid silicone mold, characterized in that: include A lower mold (100), a rod body (110) is installed on the surface of the lower mold (100), and the surface of the lower mold (100) is slidably connected to an upper mold (120), a sleeve (130) is installed on the surface of the upper mold (120), the rod body (110) is slidably inserted into the sleeve (130), a mold cavity (140) is opened on the surface of the lower mold (100), a spring (121) is connected between the lower mold (100) and the upper mold (120), and the spring (121) is sleeved on the surface of the rod body (110) and the sleeve (130); A demoulding assembly (200), the demoulding assembly (200) comprising a transmission member (210) and a rotating member (220), the transmission member (210) and the rotating member (220) are both rotatably mounted in the lower mold (100), and the transmission member (210) is transmission-connected to the rotating member (220), one end of the rotating member (220) is connected to a screw rod (230), a stripping plate (240) is threadedly sleeved on the surface of the screw rod (230), and the stripping plate (240) is in contact with the inner wall of the mold cavity (140).

2. The FPC flexible circuit board package liquid silicone mold according to claim 1, characterized in that: The surfaces of the lower mold (100) and the upper mold (120) are both provided with mounting holes (122), and a plurality of the mounting holes (122) are provided.

3. The FPC flexible circuit board package liquid silicone mold according to claim 1, characterized in that: The transmission member (210) comprises a connecting rod (211), a first bevel gear (212) and a hand wheel (213); the connecting rod (211) is rotatably mounted in the lower mold (100), and the connecting rod (211) is respectively connected to the first bevel gear (212) and the hand wheel (213); the first bevel gear (212) is transmission-connected to the rotating member (220).

4. The FPC flexible circuit board package liquid silicone mold according to claim 3, characterized in that: The lower mold (100) is provided with a cavity (150), and the first bevel gear (212) and the rotating member (220) are both located in the cavity (150).

5. The FPC flexible circuit board package liquid silicone mold according to claim 4, characterized in that: The rotating member (220) comprises a rotating rod (221) and a second bevel gear (222); the rotating rod (221) is rotatably mounted in the lower mold (100); the rotating rod (221) is respectively connected to the second bevel gear (222) and the screw rod (230); the second bevel gear (222) is meshingly connected to the first bevel gear (212).

6. The FPC flexible circuit board package liquid silicone mold according to claim 1, characterized in that: The lower surface of the stripping plate (240) is connected to an internal threaded cylinder (241), and the internal threaded cylinder (241) is threadedly sleeved on the surface of the screw rod (230).

7. The FPC flexible circuit board package liquid silicone mold according to claim 6, characterized in that: The bottom of the internally threaded cylinder (241) is connected to a limiting frame (242), a groove (160) is provided in the lower mold (100), and the limiting frame (242) is fitted with the inner wall of the groove (160).

Images