LED backlight source rubber frame processing equipment

Abstract

The utility model relates to the technical field of LED backlight sources, in particular to LED backlight source rubber frame processing equipment. Comprising a machine table and an injection molding mechanism, and the injection molding mechanism comprises a lower mold body, an upper mold body, a lower sealing plate, a rear sealing plate, a front sealing plate, a water inlet pipe, a water outlet pipe, a control valve and a descending device. When cooling water circulates, heat conducted by the lower mold body can be taken away, cooling of the lower mold body is achieved, and therefore rapid cooling of an internal injection molding product is indirectly facilitated, and the problem that an existing LED backlight rubber frame injection molding mold structure is not provided with a corresponding cooling structure; and therefore, a product in the mold cannot be quickly cooled after injection molding, and only natural cooling is adopted, so that the processing efficiency is influenced.

Description

Technical Field

[0001] This utility model relates to the field of LED backlight technology, and in particular to an LED backlight frame processing equipment. Background Technology

[0002] Backlight is a light source located behind an LCD display. Its light emission effect directly affects the visual effect of the LCD display module. It consists of a backlight panel and a frame. As is well known, during the assembly process of an LED backlight, a frame needs to be wrapped around its outer edge, which is called a frame in the industry. The frame is usually injection molded. The problem with the existing technology is that the existing frame injection mold has a poor demolding effect during the injection process, which makes it difficult for the frame to detach from the cavity, causing inconvenience to users.

[0003] Existing technology CN217968132U discloses an LED backlight frame processing device, including a lower mold base, a fixed mold located on the top of the lower mold base, a cavity opened on the top of the fixed mold, and an ejector component for detaching the frame. The ejector component includes ejector grooves respectively opened on both sides of the cavity, an ejector block located in the ejector groove, a first groove opened at the bottom of the ejector groove, a second groove opened at the bottom of the first groove, a first guide rod located at the bottom of the ejector block, a moving block located at the bottom of the first guide rod, a first sliding groove respectively opened on both sides of the moving block, a first slider located in the first sliding groove, and a third groove respectively opened on both sides of the second groove. This utility model solves the problem that the demolding effect of existing frame injection molds is relatively poor during the injection process, which makes it difficult for the frame to detach from the cavity and causes inconvenience to users.

[0004] However, during the processing of the above-mentioned device, the LED backlight frame is formed by injection molding. However, the mold structure of the device does not have a corresponding cooling structure, so it is impossible to quickly cool the product inside the mold after injection molding. It relies solely on natural cooling, which affects the processing efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an LED backlight frame processing equipment, which aims to solve the problem that the existing LED backlight frame injection mold structure does not have a corresponding cooling structure, so it is impossible to quickly cool the product inside the mold after injection molding, and it relies only on natural cooling, which affects the processing efficiency.

[0006] To achieve the above objectives, this utility model provides an LED backlight frame processing equipment, including a machine base and an injection molding mechanism;

[0007] The injection molding mechanism includes a lower mold body, an upper mold body, a lower sealing plate, a rear sealing plate, a front sealing plate, a water inlet pipe, a water outlet pipe, a control valve, and a downward movement device. The lower mold body is fixed to the machine base, and its top surface has a molding cavity set according to the size of the backlight frame. The bottom of the lower mold body has an irregularly shaped water channel that connects the front and rear sides of the bottom of the lower mold body, but does not communicate with the molding cavity of the lower mold body, and is located below the molding cavity of the lower mold body. The upper mold body is located above the lower mold body, and its bottom surface has a molding cavity set according to the size of the backlight frame, and communicates with the molding cavity. An injection hole is provided. The lower sealing plate is fixed to the bottom of the lower mold body and located below the irregular water channel. The rear sealing plate is fixedly connected to the lower sealing plate and the lower mold body and is located on the rear side of the lower mold body. The front sealing plate is fixedly connected to the lower sealing plate and the lower mold body and is located on the front side of the lower mold body. The water inlet pipe is welded to the front sealing plate. The water outlet pipe is welded to the rear sealing plate. The control valve is fixedly connected to the water inlet pipe and is located on the water inlet side of the water inlet pipe and connected to the external cooling water delivery pipe. The downward device is set on both sides of the machine base.

[0008] The irregularly shaped water channels on the bottom of the lower mold body are symmetrically arranged.

[0009] The descending device includes a support, a hydraulic cylinder, and a guide assembly. The support is fixedly connected to the machine base and arranged symmetrically. The hydraulic cylinder is fixed to the top of the support, and its output end is connected to the upper mold body. The guide assembly is located on the side of the machine base near the upper mold body.

[0010] The guide assembly includes a T-shaped sliding sleeve and a guide rod. The T-shaped sliding sleeve is fixedly connected to the upper mold body and is symmetrically arranged. The guide rod is threadedly connected to the machine base and slidably connected to the T-shaped sliding sleeve.

[0011] The injection molding mechanism also includes an electric valve, which is fixed to the water inlet side of the control valve and electrically connected to an external controller.

[0012] This utility model discloses an LED backlight frame processing equipment. During processing, the downward device is first controlled to drive the upper mold body downward to cooperate with the lower mold body to form an injection cavity. Then, molten material is injected into the interior through the injection hole on the upper mold body to perform LED backlight frame injection molding. Furthermore, when rapid cooling of the product in the injection cavity is required after injection molding, the control valve is opened to deliver cooling water into the irregular water channel. As the cooling water flows, it carries away the heat conducted by the lower mold body, thereby cooling the lower mold body and indirectly facilitating rapid cooling of the internal injection molded product. This solves the problem that existing LED backlight frame injection mold structures do not have corresponding cooling structures, thus preventing rapid cooling of the product in the mold after injection molding and relying solely on natural cooling, which affects processing efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the LED backlight frame processing equipment according to the first embodiment of this utility model.

[0015] Figure 2 This is a schematic diagram of the irregular waterway structure according to the first embodiment of this utility model.

[0016] Figure 3 This is a schematic diagram of the overall structure of the LED backlight frame processing equipment according to the second embodiment of this utility model.

[0017] In the diagram: 101-Machine base, 102-Lower mold body, 103-Irregular water channel, 104-Upper mold body, 105-Lower sealing plate, 106-Rear sealing plate, 107-Front sealing plate, 108-Inlet pipe, 109-Outlet pipe, 110-Control valve, 111-Bracket, 112-Hydraulic cylinder, 113-T-shaped sliding sleeve, 114-Guide rod, 201-Electric valve. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] Example 1:

[0020] like Figure 1 and Figure 2 As shown, where Figure 1 This is a schematic diagram of the overall structure of the LED backlight frame processing equipment. Figure 2This is a schematic diagram of the irregular water channel 103. This utility model provides an LED backlight frame processing equipment, including a machine base 101 and an injection molding mechanism. The injection molding mechanism includes a lower mold body 102, an upper mold body 104, a lower sealing plate 105, a rear sealing plate 106, a front sealing plate 107, a water inlet pipe 108, a water outlet pipe 109, a control valve 110, and a downward device. The downward device includes a bracket 111, a hydraulic cylinder 112, and a guide assembly. The guide assembly includes a T-shaped sliding sleeve 113 and a guide rod 114. This solution solves the problem that existing LED backlight frame injection molds lack corresponding cooling structures, making rapid cooling of the product inside the mold impossible after injection molding, relying solely on natural cooling, which affects processing efficiency. The aforementioned solution facilitates rapid cooling of the injection molded parts, thus improving processing efficiency.

[0021] In this embodiment, the machine base 101 is used for the injection molding mechanism.

[0022] The lower mold body 102 is fixed on the machine base 101, and its top surface has a molding cavity set according to the size of the backlight frame. The bottom of the lower mold body 102 has a shaped water channel 103, which connects the front and rear sides of the bottom of the lower mold body 102, but does not communicate with the molding cavity of the lower mold body 102, and is located below the molding cavity of the lower mold body 102. The upper mold body 104 is located above the lower mold body 102, and its bottom surface has a molding cavity set according to the size of the backlight frame, and has an injection hole communicating with the molding cavity. The lower sealing plate 105 is fixed to the bottom of the lower mold body 102 and is located below the shaped water channel 103. Below the water channel 103, the rear sealing plate 106 is fixedly connected to the lower sealing plate 105 and the lower mold body 102 respectively, and is located on the rear side of the lower mold body 102. The front sealing plate 107 is fixedly connected to the lower sealing plate 105 and the lower mold body 102 respectively, and is located on the front side of the lower mold body 102. The water inlet pipe 108 is welded to the front sealing plate 107. The water outlet pipe 109 is welded to the rear sealing plate 106. The control valve 110 is fixedly connected to the water inlet pipe 108 and is located on the water inlet side of the water inlet pipe 108, and is connected to the external cooling water conveying pipe. The descending device is arranged on both sides of the machine base 101. The lower mold body 102 is fixed to the machine base 101 by countersunk locating pins and bolts. The top end face of the lower mold body 102 has symmetrically arranged locating holes that engage with locating pins at the bottom of the upper mold body 104. The upper mold body 104 is driven vertically by the downward movement device. The bottom of the lower mold body 102 has a non-linear water channel 103, which facilitates longer water flow time and better heat exchange. The lower sealing plate 105 is fixed with bolts. The front sealing plate 107 and the rear sealing plate 106 are the same size and are fixed with bolts respectively. After installation, they are connected to the lower sealing plate 105. To achieve a seal for the irregularly shaped water channel 103 and prevent water leakage, heat-resistant rubber gaskets of appropriate sizes are respectively provided on the contact surfaces of each sealing plate and the lower mold body 102 to improve the sealing performance. The water inlet pipe 108 is welded to the front sealing plate 107 and connected to the outlet flange of the control valve 110 through a screw nut. The inlet flange of the control valve 110 is connected to the flange of the cooling water conveying pipe through a screw nut. The water outlet pipe 109 is welded to the rear sealing plate 106 and the outlet flange is connected to the external cooling water return pipe. The return pipe is connected to the refrigeration device, which cools the hot water after heat exchange before conveying it, thereby realizing the recycling of cooling water.

[0023] Secondly, the irregularly shaped water channels 103 on the bottom of the lower mold body 102 are symmetrically arranged. The symmetrical arrangement of the irregularly shaped water channels 103 increases the cooling channels, which helps to accelerate the cooling of the internal injection molded products.

[0024] Then, the bracket 111 is fixedly connected to the machine base 101 and arranged symmetrically; the hydraulic cylinder 112 is fixed to the top of the bracket 111, and its output end is connected to the upper mold body 104; the guide assembly is arranged on the side of the machine base 101 near the upper mold body 104. The bracket 111 is set by positioning pins and bolts arranged from bottom to top, the hydraulic cylinder 112 is installed on the top of the bracket 111 by bolts, and its output end is connected to the connecting plate on the upper mold body 104 by multiple bolts. The guide assembly is used to improve the straightness of the upper mold body 104 when it moves vertically.

[0025] Finally, the T-shaped sliding sleeve 113 is fixedly connected to the upper mold body 104 and arranged symmetrically; the guide rod 114 is threadedly connected to the machine base 101 and slidably connected to the T-shaped sliding sleeve 113. The T-shaped sliding sleeve 113 is fixed by bolts, and the external threaded end of the bottom of the guide rod 114 is directly installed in the threaded hole of the machine base 101, while the upper optical axis part slides in cooperation with the T-shaped sliding sleeve 113.

[0026] This invention addresses the problem of existing LED backlight frame injection molds lacking a corresponding cooling structure, thus hindering rapid cooling of the product after injection molding and relying solely on natural cooling, which impacts processing efficiency. During processing, the downward-moving device is first controlled to drive the upper mold body 104 downwards to cooperate with the lower mold body 102, forming an injection cavity. The guide rod 114 and the T-shaped sliding sleeve 113 then engage in working cooperation. Finally, molten material is injected into the upper mold body 104 through the injection hole, enabling LED backlight frame injection molding. Further, after injection molding, when rapid cooling of the product inside the injection cavity is required, the control valve 110 is opened to deliver cooling water into the irregular water channel 103. As the cooling water flows, it can carry away the heat conducted by the lower mold body 102, thereby cooling the lower mold body 102 and indirectly facilitating rapid cooling of the internal injection molded product. This solves the problem that existing LED backlight frame injection mold structures do not have corresponding cooling structures, making it impossible to perform rapid cooling of the product inside the mold after injection molding, relying solely on natural cooling, which affects processing efficiency.

[0027] Example 2:

[0028] like Figure 3 As shown, where Figure 3This is a schematic diagram of the overall structure of the LED backlight frame processing equipment. Based on the first embodiment, this utility model provides an LED backlight frame processing equipment. The injection molding mechanism also includes an electric valve 201, which is fixed to the water inlet side of the control valve 110 and electrically connected to an external controller.

[0029] In this embodiment, the inlet flange of the electric valve 201 is connected to the flange of the external cooling water delivery pipe through a screw nut, and the outlet flange is connected to the inlet flange of the control valve 110 through a screw nut. When the product in the injection cavity needs to be cooled quickly after injection molding, the control valve 110 can be in the normally open state. Then, the electric valve 201 can be directly controlled to open and close through an external mobile control box, so that cooling water can be quickly delivered into the irregular flow channel 103. Moreover, the labor intensity of manual operation is also low in this way.

[0030] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. An LED backlight frame processing equipment, comprising a machine base, characterized in that: It also includes the injection molding mechanism; The injection molding mechanism includes a lower mold body, an upper mold body, a lower sealing plate, a rear sealing plate, a front sealing plate, a water inlet pipe, a water outlet pipe, a control valve, and a downward movement device. The lower mold body is fixed to the machine base, and its top surface has a molding cavity set according to the size of the backlight frame. The bottom of the lower mold body has an irregularly shaped water channel that connects the front and rear sides of the bottom of the lower mold body, but does not communicate with the molding cavity of the lower mold body, and is located below the molding cavity of the lower mold body. The upper mold body is located above the lower mold body, and its bottom surface has a molding cavity set according to the size of the backlight frame, and communicates with the molding cavity. An injection hole is provided. The lower sealing plate is fixed to the bottom of the lower mold body and located below the irregular water channel. The rear sealing plate is fixedly connected to the lower sealing plate and the lower mold body and is located on the rear side of the lower mold body. The front sealing plate is fixedly connected to the lower sealing plate and the lower mold body and is located on the front side of the lower mold body. The water inlet pipe is welded to the front sealing plate. The water outlet pipe is welded to the rear sealing plate. The control valve is fixedly connected to the water inlet pipe and is located on the water inlet side of the water inlet pipe and connected to the external cooling water delivery pipe. The downward device is set on both sides of the machine base.

2. The LED backlight frame processing equipment as described in claim 1, characterized in that: The irregularly shaped water channels on the bottom of the lower mold body are symmetrically arranged.

3. The LED backlight frame processing equipment as described in claim 1, characterized in that: The descending device includes a support, a hydraulic cylinder, and a guide assembly. The support is fixedly connected to the machine base and arranged symmetrically. The hydraulic cylinder is fixed to the top of the support, and its output end is connected to the upper mold body. The guide assembly is located on the side of the machine base near the upper mold body.

4. The LED backlight frame processing equipment as described in claim 3, characterized in that: The guide assembly includes a T-shaped sliding sleeve and a guide rod. The T-shaped sliding sleeve is fixedly connected to the upper mold body and is symmetrically arranged. The guide rod is threadedly connected to the machine base and slidably connected to the T-shaped sliding sleeve.

5. The LED backlight frame processing equipment as described in claim 1, characterized in that... : The injection molding mechanism also includes an electric valve, which is fixed to the water inlet side of the control valve and electrically connected to an external controller.

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