TWM571305U - Mold unit and modular mold - Google Patents

Abstract

A mold unit includes a feed tube, at least one mold core, and at least one output member. The feed pipe has a runner and at least one outlet for communicating the runner, the runner can be used to transfer plastic and the outlet can output plastic from the runner. The mold core has a cavity and an injection port that communicates with the cavity, and the injection port can be used to receive plastic and inject plastic into the cavity. At least one output member is disposed on the at least one output port and connected to the injection port of the at least one mold core to connect the output port and the injection port, so that the plastic in the runner can be input into the cavity of the mold core. Combining a plurality of the above-mentioned mold units can form a modular mold, and the modular mold can achieve the effects of ease of use and maintenance and low cost.

Description

Mold unit and modular mold

The creation department is related to the mold unit and the modular mold; in particular, it relates to a mold unit and a modular mold which have low production cost and are easy to maintain.

Medical plastic consumables, such as syringes, are usually manufactured in large quantities by injection molding through a mold. In order to carry out mass production at the same time, a plurality of cavities are formed on the same mold, and runners connected to the respective cavities are formed in the mold. The molten plastic is injected into each cavity through the runner to cool the cavity to complete the product. In addition, not only medical plastic consumables, but also plastic products in other fields can be mass-produced using the above methods.

However, a plurality of finer and finer cavities are formed in a larger mold, and a runner that can communicate with each cavity is formed inside, which requires a higher technique for the production of the mold, and the manufacturing cost thereof is also Higher. In contrast, when one or several of the above-mentioned large molds are damaged, or a part of the runner is damaged, the entire mold must be removed for maintenance and the damaged portion cannot be repaired separately. At this time, other normal parts of the mold are subject to The injection molding process cannot be performed due to the influence. If the damaged part cannot be repaired, the entire mold must be replaced and it is not possible to replace only the damaged part. Therefore, conventional molds are inconvenient and costly to manufacture or maintain.

On the other hand, although a large mold can produce a large number of plastic products at a time, since the cavities are connected to each other by a runner, the number of one-time production is fixed and cannot be adjusted. Moreover, the shape of the manufactured product has been determined at the time of production of the large-sized mold, which is inconvenient to use.

Therefore, it is necessary to develop new molds to solve the above problems.

In view of this, the purpose of the present invention is to provide a mold unit which has a low manufacturing cost and is easy to use and maintain, and can solve the problems of the prior art.

In order to achieve the above object, the mold unit provided by the present invention comprises a delivery tube, at least one mold core and at least one output member. The feed pipe has a runner and at least one outlet for communicating the runner, wherein the runner is for conveying plastic and at least one outlet is for outputting plastic in the runner. At least one of the mold cores has a cavity and an injection port that communicates with the cavity, wherein the injection port can be used to receive plastic and inject plastic into the cavity. At least one output member may be respectively disposed on the at least one output port, and may be connected to the injection port of the at least one mold core to connect the output port and the injection port. Thereby, the plastic can be input into the cavity of the mold by the runner of the feed pipe for injection molding.

Another object of the present invention is to provide a modular mold, which has a low manufacturing cost and is easy to use and maintain, and can be processed by other normal mold units during maintenance, which can solve the problems of the prior art.

In order to achieve the above object, the modular mold provided by the present invention comprises a plurality of mold units that can be combined with each other, wherein each mold unit comprises a feed tube, at least one mold core and at least one output member. The feed pipe has a runner and at least one outlet for communicating the runner, wherein the runner is for conveying plastic and at least one outlet is for outputting plastic in the runner. At least one of the mold cores has a cavity and an injection port that communicates with the cavity, wherein the injection port can be used to receive plastic and inject plastic into the cavity. At least one output member may be respectively disposed on the at least one output port, and may be connected to the injection port of the at least one mold core to connect the output port and the injection port. Thereby, the plastic can be input into the cavity of the mold by the runner of the feed pipe for injection molding.

In this way, the modular mold of the present invention can integrate a plurality of fine mold units into a larger mold, can perform a large number of injection molding at the same time, and can repair a single mold unit when one of the mold units is damaged or Replace without affecting the process of other mold units.

In order to explain the present invention more clearly, the preferred embodiment will be described in detail with reference to the drawings. 1 and FIG. 2, FIG. 1 is a schematic view of a mold unit 1 according to an embodiment of the present invention, and FIG. 2 is a partial cross-sectional view of the mold unit 1 of FIG. As shown in Fig. 1, the mold unit 1 has a feed pipe 10, at least one mold core 12 and at least one output member 14, wherein at least one of the mold cores 12 can be arranged around the feed pipe 10, and the output member 14 can be arranged. The mold core 12 can be connected to the feed pipe 10. On the other hand, the mold unit 1 further has a fixing member 16 which can be used to fix the delivery tube 10 and the mold core 12 to assemble the delivery tube 10 and the mold core 12 at the periphery of the delivery tube 10 into the mold unit 1.

As shown in FIG. 2, the feed pipe 10 has a runner 100 therein and at least one outlet 102 that communicates with the runner 100. The runner 100 can receive and transfer molten state plastic from outside the mold unit 1. In this embodiment, the runner 100 can receive plastic from the bottom and transfer it to the entire runner 100, and then the plastic can be at least one output port 102. The output from the communicating runner 100 to the output member 14 is externally output. On the other hand, each of the mold cores 12 has a cavity 120 and an injection port 122 communicating with the cavity 120. The injection port 122 can be used to receive plastic from the outside of the mold core 12 and inject the received plastic into the mold core 12 The cavity 120. The output member 14 can be disposed on the output port 102 of the delivery tube 10 and connected to the injection port 122 of the corresponding mold core 12, thereby connecting the output port 102 and the injection port 122, and further connecting the runner 100 and the cavity 120. With the output member 14, the plastic in the runner 100 can be injected into the cavity 120 for the injection molding process. Please note that for the sake of simplicity of the drawing, Figure 2 omits the mold core 12 on the right side.

The number of outlets 102 of the delivery tube 10 and the location of the delivery tube 10 can be designed to match the number of mold cores 12. In the present embodiment, four mold cores 12 can be surrounded around one of the feed pipes 10, so that four output ports 102 can be disposed on the feed pipe 10 to correspond to the injection ports 122 of the four mold cores 12 that are surrounded. However, in practice, the number of molds and corresponding output ports can also be two, three, five or more. This creation does not limit this. Each of the output ports 102 can be connected to an output member 14, and each of the output members 14 can be respectively connected to the injection port 122 of the corresponding mold core 12. Therefore, one mold unit 1 can supply plastic to the plurality of mold cavities 120, so that a plurality of injection molding processes can be simultaneously performed to produce a plurality of products at one time.

The injection port 122 is located on the side of the mold core 12 and communicates with the cavity 120 from the side, and the output port 102 is located on the side of the feed pipe 10 and can be connected to the runner 100 by the side. This design can make the output member 14 and the respective mold cores 12 The assembly is easier.

In this embodiment, the mold core 12 may further include a first mold core 124, a second mold core 126, and a third mold core 128, wherein the first mold core 124 forms an injection port 122. The first mold core 124 and the second mold core 126 are interconnected to form a cavity 120, and the third mold core 128 is inserted into the mold cavity 120 to limit the shape of the cavity 120. Through the first mold core 124, the second mold core 126 and the third mold core 128, when plastic is passed from the delivery tube 10 through the output port 14 through the output member 14 into the cavity 120, a thin shape like a syringe can be formed. Cylindrical structure. The above-mentioned mold core 12 is a combination of three sub-molds, but this creation does not limit this. For example, if a plastic product having other shapes or structures is to be produced, the mold core can be based on the actual cavity. The shape is designed, in other words, any mold that can form a cavity and form an injection port that communicates with the cavity on the side of the cavity is an option that can be employed. Moreover, the different output ports of the feeding tube in the mold unit can be connected with the mold cores having different mold cavities. When the mold unit is used for injection molding, plastic products having different shapes can be simultaneously produced.

When one of the mold cores 12 of the mold unit 1 or the first mold core 124, the second mold core 126 or the third mold core 128 of the mold core 12 is damaged to cause deformation of the mold cavity 120, only the damaged mold may be used. The Ren 12 is removed for repair or replacement and does not require replacement of all the mold cores 12. Thereby, the mold unit of the present invention is easier to use and repair than the larger mold of the prior art, and the cost is lower.

If a mold core 12 is damaged, it can not be replaced and repaired temporarily. At this time, the mold unit 1 to which the mold core 12 belongs can be stopped to supply the plastic to the runner 100 of the feed pipe 10, so as to avoid the plastic corresponding The output port 122 of the damaged mold core 12 and the output member 14 are vented to the outside. On the other hand, if the damaged mold core 12 is removed, the output member 14 corresponding to the damaged mold core 12 is replaced with a closure member to close the output port 102, and the plastic will not leak out from the output port 102 to the outside. The delivery tube 10 and other mold cores 12 of the mold unit 1 can still perform the injection molding process normally.

In the present embodiment, the output member 14 is an outwardly projecting valve port. Therefore, when the delivery tube 10 is fed (or fed), the output member 14 will be fed by the input tube 10 to be firmly Abutting the injection port 122, communicating with the injection port 122, whereby the material can be efficiently transported to inject the plastic into the cavity 120; further, when the feed pipe 10 stops feeding, the output member 14 will stop feeding or The performance insulation is kept at the injection port 122 to prevent the plastic from leaking out. In summary, the mold unit of the present invention can be connected to a plurality of mold cores through a separable runner and cavity design to provide plastic into the cavity of each mold core while performing multiple injection molding processes. When one of the mold cores is damaged, the mold core can be repaired or replaced only without replacing all of the mold cores or mold units, making the mold unit relatively convenient to manufacture, use, or maintain, and at a lower cost.

The mold unit in the foregoing specific embodiment may further constitute a modular mold, and a plurality of injection molding processes may be simultaneously performed. Please refer to FIG. 3. FIG. 3 is a schematic diagram of a modular mold 2 according to another embodiment of the present invention. As shown in FIG. 3, the modular mold 2 includes a plurality of mold units 20 combined. In practice, the modular mold 2 can be used to perform a large number of injection molding processes to simultaneously complete a large number of plastic products.

In this embodiment, the plurality of mold units 20 in the modular mold 2 can be combined with each other to form the modular mold 2. In detail, one or several module units 20 can be built on one substrate 22, and a plurality of substrates 22 together with the mold unit 20 thereon are combined to form a modular mold 2, but this is not the case in practice. limit. In another embodiment, all of the mold units may be disposed on the same substrate and interconnected to form a modular mold.

In the present embodiment, a mold unit 20 includes a delivery tube 200, at least one mold core 202, at least one output member 204, and a stationary member 206, wherein at least one of the mold cores 202 can be arranged around the delivery tube 10, the output member 204 can be disposed on the delivery tube 200 and can be connected to the mold core 202, and the fixing member 206 is used to connect and fix the mold core 202. In the present embodiment, the members of the mold unit 20 are substantially identical to the corresponding members of the previous embodiment, that is, the feed tube 200 has a runner (not shown) and corresponding at least one mold core 202. At least one output port 2002, and the output member 204 is respectively disposed on the output port 2002 and can be connected to the injection port 2022 of the mold core 202. The mold core 202 has a cavity (not shown) communicating with the injection port 2022. Therefore, each of the mold units 20 can communicate with the runner of the feed pipe 200 and the cavity of each of the mold cores 202 through the output member 204, thereby performing an injection molding process.

Please note that although the modular mold 2 is composed of 8 mold units 20 in this embodiment, the present creation is not limited thereto, and the user or designer can adjust the number of mold units 20 combined with each other according to their needs. Further, the size of the modular mold 2 is extended or adjusted to achieve simultaneous injection molding processes of a smaller scale or a larger scale. In addition, as described in the previous embodiment, the number of the mold cores 202 in the single mold unit 20 can be determined according to requirements, and is not limited to the four mold cores 202 of the specific embodiment, thereby further regulating simultaneous injection molding. The number of molds in the process. On the other hand, each of the mold units 20 can use the mold cores 202 having different mold cavities, so that plastic articles having different shapes can be produced in large quantities at the same time.

When one of the mold cores 202 of the modular mold 2 is damaged to cause deformation or failure of the mold cavity, the mold core 202 can be separately removed for repair or replacement, and the other mold cores 202 can still perform the injection process normally. Further, if the feed pipe 200 of one of the die units 20 is damaged, only the supply of plastic to the feed pipe 200 can be stopped, and the other die units 20 can still perform the injection process normally. In this embodiment, since the mold cores 202 are detachably connected to the other mold cores 202 and the feed pipe 200, complicated or difficult techniques are not required in the production and the manufacturing cost is low.

According to various embodiments described above, the modular mold of the present invention is composed of a plurality of mold units, and the mold unit can be easily fabricated by using a plurality of mold cores with a single mold cavity and a separate runner design. , use and maintenance, and low cost.

The above is only a preferred embodiment of the present invention, and equivalent changes to the scope of the present application and the scope of the patent application are intended to be included in the scope of the present patent.

[This creation]

1, 20‧‧‧ mold unit

2‧‧‧Modular mold

10,200‧‧‧feeding pipe

12, 202‧‧‧Men

14, 204‧‧‧ Outputs

16, 206‧‧‧Fixed components

100‧‧‧Runner

102, 2002‧‧‧ output

120‧‧‧ cavity

122, 2022‧‧ ‧ injection port

124‧‧‧The first model

126‧‧‧The second mold

128‧‧‧The third model

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic illustration of a mold unit of one embodiment of the present invention. Figure 2 is a partial cross-sectional view of the mold unit of Figure 1. 3 is a schematic view of a modular mold of another embodiment of the present invention.

Claims (8)

A mold unit comprising: a feed pipe having a runner and at least one outlet connected to the runner, the runner is for conveying a plastic, and the at least one outlet is for outputting the plastic in the runner At least one mold having a cavity and an injection port connecting the cavity for receiving the plastic and injecting the plastic into the cavity; and at least one output member disposed on the at least one output And connecting the injection port of the at least one mold core to communicate the at least one output port and the injection port of the at least one mold core, the at least one output member is configured to output the plastic in the runner to the at least one mold In the mold cavity of Ren. The mold unit of claim 1, wherein the at least one mold core is arranged around the feed tube. The mold unit of claim 2, further comprising a fixing member for connecting and fixing the at least one mold core. The mold unit of claim 1, wherein the injection port is located at one side of the mold core, and the injection port communicates with the mold cavity from the side surface. A modular mold comprising: a plurality of mold units, the mold units being combinable with each other, each of the mold units further comprising: a feed pipe having a runner and at least one outlet connected to the runner The sprue is for transmitting a plastic, the at least one output port is for outputting plastic in the runner; at least one mold core has a cavity and an injection port connecting the cavity, the injection port is used for Receiving the plastic and injecting the plastic into the cavity; and at least one output member disposed at the at least one output port and connecting the injection port of the at least one die to communicate the at least one output port and the at least one die The inlet, the at least one output member is configured to output the plastic in the runner to the cavity of the at least one mold. The modular mold of claim 5, wherein the at least one mold core of each of the molds is arranged around the feed tube. The modular mold of claim 6, wherein each of the mold units further comprises a fixing member for connecting and fixing the at least one mold core. The modular mold of claim 5, wherein the injection port is located on one side of the mold core, and the injection port communicates with the mold cavity from the side surface.