Hot runner system with spliced splitter plate

Abstract

A hot runner system with a spliced splitter plate comprises the splitter plate, a first template, a second template, an injection nozzle and a hot nozzle, the splitter plate is located between the first template and the second template, the injection nozzle is fixed to the first template, and the hot nozzle is fixed to the second template; the splitter plate comprises a first plate body, a splicing device and a second plate body, the injection nozzle, the first plate body, the splicing device, the second plate body and the hot nozzle are sequentially communicated, and the splicing device is detachably mounted between the first plate body and the second plate body. According to the hot runner system, due to the adoption of the spliced splitter plate, the first plate body and the second plate body can be made into standard parts, splicing devices with different lengths can be selected according to hot nozzle point positions, and due to the fact that the splicing devices are relatively low in cost and relatively short in production time, the overall machining cost can be reduced, and the overall production time can be shortened.

Description

Technical Field

[0001] The utility model relates to a hot runner system, in particular to a hot runner system with a spliced manifold plate. Background Art

[0002] The manifold plate is a component used to transfer molten plastic in the hot runner system of an injection mold. As Figure 1 shown, in some hot runner systems, the manifold plate 101 is arranged between two templates 102. The injection nozzle 103 and the hot nozzle 104 are respectively fixed to the two templates 102. The two ends of the internal channel of the manifold plate 101 are respectively communicated with the internal channels of the injection nozzle 103 and the hot nozzle 104, so as to transfer the molten plastic from the injection nozzle 103 to the hot nozzle 104.

[0003] However, since the internal channel of the manifold plate 101 needs to cooperate with the hot nozzle 104, and for different injection molds, the positions of the hot nozzles 104 (i.e., the positions in the left - right direction in the figure) are different. Therefore, the shape and size of the manifold plate 101 need to match the corresponding positions of the hot nozzles 104, resulting in that the manifold plate 101 cannot be made into a standard part. Mold manufacturers must manufacture various models of manifold plates 101, with relatively high processing costs and long production times. Summary of the Utility Model

[0004] In order to overcome the drawbacks and deficiencies in the prior art, the purpose of the utility model is to design a spliced manifold plate that can make some parts into standard parts, so as to solve the problems of high processing costs and long production times caused by manufacturing various models of manifold plates in the prior art.

[0005] To achieve the above purpose, the utility model provides a hot runner system with a spliced manifold plate, including: a manifold plate, a first template, a second template, an injection nozzle, and a hot nozzle. The manifold plate is located between the first template and the second template. The injection nozzle is fixed to the first template, and the hot nozzle is fixed to the second template. It is characterized in that: the manifold plate includes: a first plate body, a splicing device, and a second plate body. The injection nozzle, the first plate body, the splicing device, the second plate body, and the hot nozzle are sequentially communicated. The splicing device is detachably installed between the first plate body and the second plate body.

[0006] Further, the splicing device is an integrally formed part. Among them, the installation process of the integrally formed splicing device is relatively simple.

[0007] Furthermore, the splicing device is a component formed by split molding, including: a first splicing piece and a second splicing piece. The first plate body, the first splicing piece, the second splicing piece, and the second plate body are connected in sequence. The first splicing piece is detachably installed on the first plate body, the second splicing piece is detachably installed on the second plate body, and the first splicing piece and the second splicing piece are detachably installed and fixed to each other. Among them, for the split-type splicing device, if one of the splicing pieces is damaged, it can be replaced separately, thereby reducing the replacement cost.

[0008] Furthermore, the hot runner system further includes: an extrusion pad. Both ends of the extrusion pad are in contact with the first template and the second plate body respectively and apply a force towards the hot nozzle to the second plate body. Among them, the extrusion pad extrudes the second plate body towards the hot nozzle, which can make the second plate body and the hot nozzle form a tight contact, avoiding the generation of gaps between the second plate body and the hot nozzle, thereby preventing the molten plastic from overflowing.

[0009] Furthermore, the hot runner system further includes: a central pad. Both ends of the central pad are inserted into the first plate body and the second template respectively. Among them, setting the central pad can, on the one hand, support the first plate body; on the other hand, it can align the channel center line of the injection nozzle with the channel center line of the first plate body, that is, achieve the effect of centering, avoiding the overflow of molten plastic caused by misalignment.

[0010] Furthermore, the hot runner system further includes: a hollow support column and a screw. The support column is located between the second plate body and the second template. One end of the screw is located in the second plate body, the middle of the screw passes through the support column, and the other end of the screw meshes with a screw hole of the second template. Among them, setting the support column and the screw can support and fix the second plate body.

[0011] After adopting the above technical solution, the beneficial effect of the present utility model is: Since the above hot runner system adopts a split-type manifold plate, the first plate body and the second plate body can be made into standard parts, and different lengths of splicing devices can be selected according to the positions of the hot nozzles. Since the cost of the splicing device is relatively low and the production time is relatively short, the overall processing cost can be reduced and the overall production time can be shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of a hot runner system in the prior art;

[0013] Figure 2 It is a schematic diagram of the hot runner system according to Embodiment 1 of the present utility model;

[0014] Figure 3 It is a schematic diagram of the hot runner system according to Embodiment 2 of the present utility model.

[0015] The reference numerals are: 101, splitter plate; 102, template; 103, injection nozzle; 104, hot nozzle; 1, splitter plate; 11, first plate body; 12, splicing device; 121, first splicing member; 122, second splicing member; 13, second plate body; 2, first template; 3, second template; 4, injection nozzle; 5, hot nozzle; 6, extrusion pad; 7, center pad; 8, support column; 9, screw. Detailed implementation manners

[0016] The technical solution of the present utility model will be further described below through embodiments:

[0017]

Embodiment 1

[0018] The present utility model provides a hot runner system with a spliced splitter plate. As Figure 2 shown, the hot runner system includes: a splitter plate 1, a first template 2, a second template 3, an injection nozzle 4, a hot nozzle 5, an extrusion pad 6, a center pad 7, a hollow support column 8, and a screw 9. The splitter plate 1 is located between the first template 2 and the second template 3. The injection nozzle 4 is fixed to the first template 2, and the hot nozzle 5 is fixed to the second template 3. Both the injection nozzle 4 and the hot nozzle 5 are in communication with the splitter plate 1. Both ends of the extrusion pad 6 are in contact with the first template 2 and the splitter plate 1 respectively and apply a force towards the hot nozzle 5 to the splitter plate 1. Both ends of the center pad 7 are inserted into the splitter plate 1 and the second template 3 respectively. The support column 8 is located between the splitter plate 1 and the second template 3. One end of the screw 9 is located in the splitter plate 1, the middle of the screw 9 passes through the support column 8, and the other end of the screw 9 meshes with a screw hole of the second template 3. Among them, the splitter plate 1, the injection nozzle 4, and the hot nozzle 5 are all hollow components, and channels for transporting molten plastic are provided inside all of them. When the injection mold works, the molten plastic passes through the injection nozzle 4, the splitter plate 1, and the hot nozzle 5 in sequence and is injected into the cavity for forming a product; the hot nozzle 5 is used to heat the molten plastic to keep the molten plastic in a liquid state; the extrusion pad 6 is used to extrude the splitter plate 1 to keep the splitter plate 1 in close contact with the hot nozzle 5; the center pad 7 is used to position the splitter plate 1; the support column 8 is used to support the splitter plate 1, and the screw 9 is used to fix the splitter plate 1, the support column 8, and the second template 3.

[0019] Specifically, the flow splitter plate 1 includes: a first plate body 11, a splicing device 12, and a second plate body 13. The injection nozzle 4, the first plate body 11, the splicing device 12, the second plate body 13, and the hot nozzle 5 are connected in sequence. The splicing device 12 is detachably installed between the first plate body 11 and the second plate body 13. Among them, the first plate body 11, the splicing device 12, and the second plate body 13 are all hollow components, and channels for transmitting molten plastic are provided inside all of them. During the injection molding process, the molten plastic passes through the injection nozzle 4, the first plate body 11, the splicing device 12, the second plate body 13, and the hot nozzle 5 in sequence and finally flows into the cavity. In this embodiment, the first plate body 11 is located directly below the injection nozzle 4, the second plate body 13 is located directly above the hot nozzle 5, and the first plate body 11 is connected to the injection nozzle 4 and the second plate body 13 is connected to the hot nozzle 5 in a vertically butted manner.

[0020] More specifically, both ends of the extrusion spacer 6 are in contact with the first template 2 and the second plate body 13 respectively and apply a force towards the hot nozzle 5 to the second plate body 13; both ends of the center spacer 7 are inserted into the first plate body 11 and the second template 3 respectively; the support column 8 is located between the second plate body 13 and the second template 3. One end of the screw 9 is located in the second plate body 13, the middle of the screw 9 passes through the support column 8, and the other end of the screw 9 engages with a screw hole of the second template 3. The extrusion spacer 6 is used to extrude the second plate body 13 to keep the second plate body 13 in close contact with the hot nozzle 5; the center spacer 7 is used to position the first plate body 11; the support column 8 is used to support the second plate body 13, and the screw 9 is used to fix the second plate body 13, the support column 8 and the second template 3.

[0021] More specifically, in this embodiment, the splicing device 12 is an integrally formed component. During the installation process, both ends of the splicing device 12 are respectively inserted into the first plate body 11 and the second plate body 13 to form a fixation. Among them, both ends of the splicing device 12 can be installed and fixed by locking screws, or can be installed and fixed by setting snap fasteners for snap-fitting, or can also be installed and fixed by setting elastic parts for interference fit. As long as the splicing device 12 is installable and detachable, it belongs to the concept of the present utility model.

[0022]

Embodiment 2

[0023] In this embodiment, as Figure 3As shown, the structures of the first template 2, the second template 3, the injection nozzle 4, the hot nozzle 5, the extrusion pad 6, the center pad 7, the hollow support column 8 and the screw 9 of the hot runner system are the same as those in Embodiment 1. Different from Embodiment 1, the splicing device 12 of the manifold plate 1 is a component formed by split molding. The splicing device 12 includes: a first splicing member 121 and a second splicing member 122. The first plate body 11, the first splicing member 121, the second splicing member 122 and the second plate body 13 are connected in sequence. The first splicing member 121 is detachably installed on the first plate body 11, the second splicing member 122 is detachably installed on the second plate body 13, and the first splicing member 121 and the second splicing member 122 are detachably installed and fixed between them. Among them, both the first splicing member 121 and the second splicing member 122 are hollow components, and channels for transmitting molten plastic are provided inside both of them. During the injection molding process, the molten plastic passes through the first splicing member 121 and the second splicing member 122 in sequence.

[0024] During the installation process, both ends of the first splicing member 121 are respectively inserted into the first plate body 11 and one end of the second splicing member 122, and the other end of the second splicing member 122 is inserted into the second plate body 13 to form a fixation. Among them, the first splicing member 121 and the second splicing member 122 can be installed and fixed either by screwing, or by setting snap fasteners for snap-fitting, or by setting elastic members for interference fit.

Claims

1. A hot runner system with a spliced ​​manifold, comprising: A diverter plate, a first template, a second template, an injection nozzle and a hot nozzle, wherein the diverter plate is located between the first template and the second template, the injection nozzle is fixed to the first template, and the hot nozzle is fixed to the second template; characterized in that: the diverter plate comprises: a first plate body, a splicing device and a second plate body, the injection nozzle, the first plate body, the splicing device, the second plate body and the hot nozzle are connected in sequence, and the splicing device can be detachably installed between the first plate body and the second plate body.

2. The hot runner system with a spliced ​​manifold according to claim 1, characterized in that: The splicing device is an integrally formed component.

3. The hot runner system with a spliced ​​manifold according to claim 1, characterized in that: The splicing device is a separately molded component, including: a first splicing piece and a second splicing piece, the first plate body, the first splicing piece, the second splicing piece and the second plate body are connected in sequence, the first splicing piece can be detachably installed on the first plate body, the second splicing piece can be detachably installed on the second plate body, and the first splicing piece and the second splicing piece can be detachably installed and fixed.

4. The hot runner system with a spliced ​​manifold according to claim 1, characterized in that: The hot runner system further includes: an extrusion pad, both ends of which are in contact with the first template and the second plate body respectively and apply a force toward the hot nozzle to the second plate body.

5. The hot runner system with a spliced ​​manifold according to claim 1, characterized in that: The hot runner system further comprises: a central pad, and two ends of the central pad are respectively inserted into the first plate body and the second template.

6. The hot runner system with a spliced ​​manifold according to claim 1, characterized in that: The hot runner system also includes: a hollow support column and a screw, wherein the support column is located between the second plate body and the second template, one end of the screw is located in the second plate body, the middle of the screw passes through the support column, and the other end of the screw engages with a screw hole in the second template.

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