A hot runner injection mold

Abstract

The utility model relates to injection mold technical field, concretely relates to a hot runner injection mold, including fixed mould, movable mould, shunt plate, heating device and split and combination device, still include connecting device, and connecting device includes locating rod, card frame, guide rod, mounting block and abutting assembly, and locating rod fixed mounting is on the shunt plate, and one side of movable mould is equipped with the locating hole, and locating rod is engaged with the locating hole, and guide rod fixed mounting is on movable mould, and mounting block fixed mounting is on guide rod, and card frame sliding installation is on guide rod, and one side of shunt plate is equipped with the card slot, and card frame embeds in the card slot, and abutting assembly sets up on mounting block, through locating rod and the locating hole engagement, push card frame and the card slot on shunt plate engagement, and through abutting assembly and make card frame abut tightly, to make shunt plate and movable mould between can quick connection and disassembly, has simplified the disassembly process.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a hot runner injection mold. Background Technology

[0002] Hot runner injection molds utilize heating devices to keep the plastic in the runner molten state. They offer advantages such as shorter molding cycles and greater fuel efficiency compared to traditional molds. However, the fixed manifold and mounting plates in conventional hot runner injection molds make it inconvenient for workers to disassemble and reassemble the mold, thus hindering maintenance and cleaning.

[0003] Existing patent CN215203245U describes a hot runner injection mold. When the mold needs to be disassembled and repaired, the operator can use a tool that matches the internal hexagonal socket to turn the sealing cover, causing the connecting part to disengage from the connecting sub-slot. At this time, the sealing cover is removed from the mounting slot, and the valve needle is taken out. Then, the locking nuts at both ends of the connecting rod are removed, and the fixing plate, the flow divider plate, and the moving mold are disassembled respectively, which facilitates the inspection and maintenance of the mold interior and is beneficial for cleaning the flow divider.

[0004] However, when using a hot runner injection mold with an existing patent, the connecting rods and locking nuts on both sides of the device lock the first and second fixed platforms, which can enable the disassembly of the manifold, fixed plate and moving mold, but the disassembly process is cumbersome and inconvenient. Utility Model Content

[0005] The purpose of this utility model is to provide a hot runner injection mold that solves the problem of locking the first and second fixed platforms by the connecting rods and locking nuts on both sides of the aforementioned device, which enables the disassembly of the manifold, fixed plate and moving mold, but the disassembly process is cumbersome and inconvenient.

[0006] To achieve the above objectives, this utility model provides a hot runner injection mold, including a fixed mold, a moving mold, a manifold, a heating device, and a separating device. The moving mold is mounted on the fixed mold via the separating device. The fixed mold has a core. The moving mold has a cavity on the side near the core and a runner on the side near the cavity, which communicates with the cavity. The manifold has a runner channel. The heating device is mounted on the manifold. The mold also includes a connecting device, which includes a positioning rod, a retainer, a guide rod, a mounting block, and a clamping assembly. The positioning rod is fixedly mounted on the manifold. The moving mold has a positioning hole on one side, and the positioning rod engages with the positioning hole. The guide rod is fixedly mounted on the moving mold. The mounting block is fixedly mounted on the guide rod. The retainer is slidably mounted on the guide rod. The manifold has a slot on one side, and the retainer is embedded in the slot. The clamping assembly is mounted on the mounting block.

[0007] The clamping assembly includes a mounting rod, a clamping sleeve, and a rotating component. The mounting rod is fixedly mounted on the mounting block. The clamping sleeve is threadedly engaged with the mounting rod and abuts against the clamp. The rotating component is disposed on the clamping sleeve.

[0008] The rotating component includes a fixed ring and a rotating rod. The fixed ring is fixedly installed on the clamping sleeve, and the rotating rod is fixedly installed on the fixed ring.

[0009] The heating device includes a mounting base and a heating wire. The mounting base is fixedly mounted on the flow divider plate and located on the side of the flow divider plate close to the flow divider channel. The heating wire is fixedly mounted on the mounting base.

[0010] The splitting and merging device includes a first mounting block, a second mounting block, and a telescopic rod. The first mounting block is fixedly mounted on the fixed mold; the second mounting block is fixedly mounted on the moving mold; the telescopic rod is fixedly mounted on the first mounting block, and the second mounting block is fixedly connected to the output end of the telescopic rod.

[0011] This utility model discloses a hot runner injection mold. In use, the positioning rod on the manifold plate is inserted into the positioning hole on the moving mold, allowing the manifold plate to be mounted on top of the moving mold. Then, the retaining bracket is pushed, causing it to enter the retaining groove on the manifold plate along the guide rod. Next, the rotating rod is rotated, causing the fixing ring to rotate, which in turn causes the clamping sleeve to rotate, further causing the clamping sleeve to abut the retaining bracket, thus locking the manifold plate and the moving mold. Then, molten injection material is poured into the manifold plate through the manifold, allowing the material to enter the cavity through the gating system. The core then helps to form the injection molded part. Simultaneously, the bottom of the manifold plate is heated by the heating wire, keeping the material in the manifold plate molten. The engagement of the guide rod and the guide hole, as well as the engagement of the retaining bracket and the retaining groove, allows for quick connection and disassembly between the manifold plate and the moving mold, simplifying the disassembly process. Attached Figure Description

[0012] 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.

[0013] Figure 1 This is a schematic diagram of the overall structure of a hot runner injection mold according to this utility model.

[0014] Figure 2 This is a schematic diagram showing the connection between the moving mold and the fixed mold of this utility model.

[0015] Figure 3 This is a schematic diagram of the connecting device of this utility model.

[0016] In the diagram: 101-fixed mold, 102-moving mold, 103-sprue plate, 104-core, 105-cavity, 106-sprue, 107-runner, 108-positioning rod, 109-clip bracket, 110-guide rod, 111-mounting block, 112-positioning hole, 113-slot, 114-mounting rod, 115-clamping sleeve, 116-fixing ring, 117-rotating rod, 118-mounting seat, 119-heating wire, 120-first mounting block, 121-second mounting block, 122-telescopic rod. Detailed Implementation

[0017] 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.

[0018] The embodiment of this application is as follows:

[0019] Please see Figure 1-3 , Figure 1 This is a schematic diagram of the overall structure of a hot runner injection mold according to this utility model. Figure 2 This is a schematic diagram showing the connection between the moving mold and the fixed mold of this utility model. Figure 3 This is a schematic diagram of the connecting device of this utility model.

[0020] This utility model provides a hot runner injection mold, including a fixed mold 101, a moving mold 102, a manifold 103, a heating device, and a separation / combination device. It also includes a connecting device, which comprises a positioning rod 108, a clamping bracket 109, a guide rod 110, a mounting block 111, and a clamping assembly. The clamping assembly includes a mounting rod 114, a clamping sleeve 115, and a rotating component. The rotating component includes a fixing ring 116 and a rotating rod 117. The heating device includes a mounting base 118 and a heating wire 119. The separation / combination device includes a first mounting block 120, a second mounting block 121, and a telescopic rod 122. This solution solves the problem of locking the first and second fixed platforms with connecting rods and locking nuts on both sides of the aforementioned device, thus enabling the disassembly of the manifold, fixed plate, and moving mold. However, the disassembly process is cumbersome and inconvenient.

[0021] In this embodiment, the engagement of the guide rod 110 and the guide hole, as well as the engagement of the card holder 109 and the card slot 113, enables the quick connection and disassembly of the flow divider 103 and the moving mold 102, simplifying the disassembly process.

[0022] The positioning rod 108 is fixedly installed on the diverter plate 103. A positioning hole 112 is provided on one side of the moving mold 102, and the positioning rod 108 engages with the positioning hole 112. The guide rod 110 is fixedly installed on the moving mold 102. The mounting block 111 is fixedly installed on the guide rod 110. The clamping bracket 109 is slidably installed on the guide rod 110. A slot 113 is provided on one side of the diverter plate 103, and the clamping bracket 109 is embedded in the slot 113. The abutting assembly is disposed on the mounting block 111. Positioning rods 108 are disposed on both sides of the bottom of the flow divider plate 103. The bracket 109 is I-shaped. The guide rods 110 are disposed on both sides of the slot 113. The mounting block 111 is welded to the end of the guide rod 110. By engaging the positioning rods 108 with the positioning holes 112, the bracket 109 is pushed to engage with the slot 113 on the flow divider plate 103. The bracket 109 is then pressed against the flow divider plate 103 by the clamping assembly, thereby enabling quick connection and disassembly between the flow divider plate 103 and the moving mold 102, simplifying the disassembly process.

[0023] Secondly, the mounting rod 114 is fixedly mounted on the mounting block 111; the clamping sleeve 115 is threadedly engaged with the mounting rod 114, and the clamping sleeve 115 abuts against the bracket 109. The rotating member is disposed on the clamping sleeve 115. The mounting rod 114 is located between the guide rods 110 on both sides. The mounting rod 114 is threaded, and the inner side of the clamping sleeve 115 is threaded. The rotating member drives the clamping sleeve 115 to rotate, thereby causing the clamping sleeve 115 to move and clamp the bracket 109.

[0024] Furthermore, the fixing ring 116 is fixedly installed on the clamping sleeve 115; the rotating rod 117 is fixedly installed on the fixing ring 116. The fixing ring 116 is welded to the clamping sleeve 115, and the rotating rod 117 is welded to the fixing ring 116. By rotating the rotating rod 117, the fixing ring 116 is driven to rotate, thereby causing the fixing ring 116 to drive the clamping sleeve 115 to rotate.

[0025] Furthermore, the mounting base 118 is fixedly mounted on the flow divider plate 103 and located on the side of the flow divider plate 103 near the flow divider channel 107; the heating wire 119 is fixedly mounted on the mounting base 118, the mounting base 118 is disposed on both sides of the flow divider plate 103, the heating wire 119 is an electric heating wire, and the flow divider plate 103 is heated by the heating wire 119, so that the raw material in the flow divider channel 107 can remain in a molten state.

[0026] Finally, the first mounting block 120 is fixedly mounted on the fixed mold 101; the second mounting block 121 is fixedly mounted on the moving mold 102; the telescopic rod 122 is fixedly mounted on the first mounting block 120, and the second mounting block 121 is fixedly connected to the output end of the telescopic rod 122. The first mounting block 120 is welded to the fixed mold 101, and the second mounting block 121 is welded to the moving mold 102. The telescopic rod 122 is an electric telescopic rod. Driven by the telescopic rod 122, the moving mold 102 can automatically open and close the mold, which facilitates the demolding of the injection molded parts.

[0027] In this embodiment, during use, the positioning rod 108 on the diverter plate 103 is inserted into the positioning hole 112 on the moving mold 102, so that the diverter plate 103 is mounted on the top of the moving mold 102. Then, the card holder 109 is pushed, so that the card holder 109 enters the slot 113 on the diverter plate 103 along the guide rod 110. Then, the rotating rod 117 is rotated to drive the fixing ring 116 to rotate, so that the fixing ring 116 drives the clamping sleeve 115 to rotate, and further so that the clamping sleeve 115 abuts against the card holder 109, thereby realizing the positioning of the diverter plate 103 and the moving mold 102. The moving mold 102 is locked, and then molten injection material is poured into the manifold 103 through the manifold 107, so that the material enters the cavity 105 through the gating 106, and the injection molded part is formed by the cooperation of the core 104. At the same time, the bottom of the manifold 103 is heated by the heating wire 119, so that the material in the manifold 107 can remain in a molten state. Thus, the manifold 103 and the moving mold 102 can be quickly connected and disassembled by the engagement of the guide rod 110 and the guide hole, and the engagement of the clip 109 and the clip groove 113, simplifying the disassembly process.

[0028] 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. A hot runner injection mold, comprising a fixed mold, a moving mold, a manifold, a heating device, and a parting device, wherein the moving mold is mounted on the fixed mold via the parting device, the fixed mold has a core, the moving mold has a cavity on the side near the core, and the moving mold also has a runner on the side near the cavity, the runner communicating with the cavity, the manifold having a runner channel, and the heating device disposed on the manifold, characterized in that... It also includes a connecting device; The connecting device includes a positioning rod, a clamping bracket, a guide rod, a mounting block, and a clamping assembly. The positioning rod is fixedly installed on the flow divider plate. A positioning hole is provided on one side of the moving mold, and the positioning rod engages with the positioning hole. The guide rod is fixedly installed on the moving mold. The mounting block is fixedly installed on the guide rod. The clamping bracket is slidably installed on the guide rod. A slot is provided on one side of the flow divider plate, and the clamping bracket is embedded in the slot. The clamping assembly is disposed on the mounting block.

2. The hot runner injection mold as described in claim 1, characterized in that, The clamping assembly includes a mounting rod, a clamping sleeve, and a rotating component. The mounting rod is fixedly mounted on the mounting block. The clamping sleeve is threadedly engaged with the mounting rod and abuts against the clamp. The rotating component is disposed on the clamping sleeve.

3. The hot runner injection mold as described in claim 2, characterized in that, The rotating component includes a fixed ring and a rotating rod. The fixed ring is fixedly installed on the clamping sleeve, and the rotating rod is fixedly installed on the fixed ring.

4. The hot runner injection mold as described in claim 1, characterized in that, The heating device includes a mounting base and a heating wire. The mounting base is fixedly mounted on the flow divider plate and located on the side of the flow divider plate close to the flow divider channel. The heating wire is fixedly mounted on the mounting base.

5. The hot runner injection mold as described in claim 1, characterized in that, The splitting and joining device includes a first mounting block, a second mounting block, and a telescopic rod. The first mounting block is fixedly mounted on the fixed mold; the second mounting block is fixedly mounted on the moving mold; the telescopic rod is fixedly mounted on the first mounting block, and the second mounting block is fixedly connected to the output end of the telescopic rod.

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