Multi-sprue split-flow liquid injection runner structure and injection mold device

Abstract

The utility model provides a multi-sprue split-flow liquid injection runner structure and an injection mold device. The multi-sprue split-flow liquid injection runner structure comprises a liquid injection assembly and a sprue split-flow body, the liquid injection assembly is used for penetrating through the connecting through groove of the device main body and being connected with the device main body, and the liquid injection assembly is provided with a liquid inlet and a liquid injection runner which are communicated with each other; the pouring gate flow divider is used for being connected with the device main body, the pouring gate flow divider is provided with a flow dividing cavity, the flow dividing cavity is communicated with the liquid injection flow channel, the inner wall of the flow dividing cavity is provided with a plurality of liquid guide flow channels, the liquid guide flow channels are arranged at intervals, each liquid guide flow channel is provided with a pouring gate, and each pouring gate is used for being communicated with a cavity of the device main body. By means of the multi-sprue split-flow liquid injection runner structure, the use performance of a product is good.

Description

Technical Field

[0001] The present disclosure relates to the technical field of injection mold devices, and particularly to a multi-gate split liquid injection runner structure and an injection mold device. Background Art

[0002] An injection mold device is an industrial device for injecting molten glue through a gate into a cavity to cool and solidify into a product. The injection mold device is widely used in fields such as daily necessities, electronic products, medical equipment, automobiles, sports equipment, and office supplies. The injection mold device consists of a device main body and a liquid injection runner structure, etc., and the liquid injection runner structure is connected to the device main body.

[0003] In the prior art, a traditional injection mold device includes a device main body and a hot runner assembly. The device main body is provided with a cavity and a gate that are connected and communicated. The number of gates is one. The hot runner assembly is arranged on the device main body, and the hot runner assembly is connected and communicated with the gate to jointly form a liquid injection runner structure. The liquid injection runner structure is used to inject glue into the cavity to form a product, such as the Chinese patent with the patent number CN202311164669.X.

[0004] However, since the hot runner assembly is connected and communicated with the gate to jointly form a liquid injection runner structure, and the number of gates is one, the liquid injection runner structure is a single-gate structure, that is, the liquid injection runner structure injects glue into the cavity through a single gate, so that the glue injection volume of the single gate is relatively large, and the injection pressure of the single gate is relatively large. As a result, the flow rate of the glue in the center layer of the cavity is higher than that in the outer surface layer near the cavity, resulting in a large shear stress acting between the center layer and the outer surface layer of the product, that is, a large injection pressure causes a large internal stress inside the product, and the product is prone to cracking or deformation under the action of the large internal stress, making the use performance of the product poor. Summary of the Utility Model

[0005] The purpose of the present disclosure is to overcome the deficiencies in the prior art and provide a multi-gate split liquid injection runner structure and an injection mold device with better use performance of the product.

[0006] The purpose of the present disclosure is achieved by the following technical solutions:

[0007] A multi-gate split liquid injection runner structure for connecting with a device main body, the multi-gate split liquid injection runner structure includes:

[0008] A liquid injection assembly for passing through a connection slot of the device main body and for connecting with the device main body, the liquid injection assembly is provided with a liquid inlet and a liquid injection runner that are connected and communicated;

[0009] The gate fluid distributor is used to connect with the device body. The gate fluid distributor is provided with a flow splitting cavity, the flow splitting cavity is communicated with the liquid injection flow channel, a plurality of liquid guiding flow channels are arranged on the inner wall of the flow splitting cavity, the plurality of liquid guiding flow channels are arranged at intervals, each liquid guiding flow channel is provided with a gate, and each gate is used to communicate with the cavity of the device body.

[0010] In one embodiment, the flow splitting cavity includes a transition groove and a plurality of extension grooves. The plurality of extension grooves are arranged around and at intervals along the outer peripheral wall of the transition groove, and each extension groove is communicated with the transition groove; the transition groove is communicated with the liquid injection flow channel, each liquid guiding flow channel is arranged on the inner wall of the corresponding extension groove, and the plurality of liquid guiding flow channels are arranged in one-to-one correspondence with the plurality of extension grooves.

[0011] In one embodiment, there is an included angle between the extending directions of any two of the plurality of extension grooves.

[0012] In one embodiment, the included angle between the extending directions of two adjacent extension grooves is m, and 20° < m ≤ 180°.

[0013] In one embodiment, each liquid guiding flow channel includes a connecting section and a pouring section which are communicated with each other. Each gate is arranged on the corresponding pouring section, and the connecting section is communicated with the corresponding extension groove.

[0014] In one embodiment, the gate fluid distributor includes a base part and a pouring part which are connected to each other. The transition groove, each extension groove and each connecting section are all arranged in the base part, each pouring section is arranged in the pouring part, and both the base part and the pouring part are used to connect with the device body.

[0015] In one embodiment, the diameter of each connecting section is greater than or equal to the diameter of the corresponding pouring section.

[0016] In one embodiment, the diameter of each pouring section gradually decreases from top to bottom along the extending direction of the pouring section.

[0017] In one embodiment, the liquid injection assembly includes an installation part and a liquid injection part which are connected to each other. The liquid inlet and the liquid injection flow channel are both arranged in the liquid injection part. The installation part is used to pass through the connecting groove and is used to connect with the device body, and the liquid injection part is used to be located in the connecting groove and is used to connect with the device body.

[0018] An injection mold device comprises a device body and a multi-gate diversion injection channel structure as described in any of the above embodiments, the device body is provided with a connecting groove and a cavity, the injection assembly is passed through the connecting groove and connected to the device body, the gate diversion body is connected to the device body, and each of the gates is connected to the cavity.

[0019] Compared with the prior art, the present invention has at least the following advantages:

[0020] 1. Since the liquid inlet is used to introduce the glue liquid, the liquid inlet is connected with the liquid injection channel, the flow diversion cavity is connected with the liquid injection channel, the inner wall of the flow diversion cavity is provided with a plurality of liquid guide channels, each of which is provided with a gate, and each gate is used to communicate with the cavity of the device body, so that the glue liquid is respectively injected into the cavity along the liquid injection channel, the flow diversion cavity, the plurality of liquid guide channels and the plurality of gates to form the product, that is, the multi-gate flow diversion injection channel structure injects the glue liquid into the cavity through the plurality of gates to form the product;

[0021] 2. Since the multi-gate diversion injection channel structure injects the glue into the mold cavity through multiple gates to form the product, the multi-gate diversion injection channel structure is a multi-gate structure, thereby avoiding the problem of the injection channel structure in the prior art injecting the glue into the mold cavity through a single gate, so that the glue is diverted in the diversion cavity into each liquid guide channel, so that the amount of glue in each liquid guide channel is small, the amount of glue injected at each gate is small, and the injection pressure of each gate is small, so that the glue injected into the mold cavity by each gate flows smoothly in the mold cavity, so that the flow rate of the glue in the center layer of the mold cavity is consistent with the flow rate of the glue in the outer layer near the mold cavity, so that the center layer and the outer layer of the product are subjected to smaller shear stress, that is, the smaller injection pressure causes the inside of the product to be subjected to smaller internal stress, so that the product is less likely to crack or deform under the action of smaller internal stress, thereby making the product have better performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of a multi-gate split flow injection channel structure of an embodiment;

[0024] Figure 2 for Figure 1 An enlarged schematic diagram of a multi-gate split-flow injection flow channel structure at point A is shown;

[0025] Figure 3 is Figure 1 a schematic structural view of another perspective of the multi-gate split injection flow channel structure shown;

[0026] Figure 4 is Figure 3 an enlarged schematic view at position B of the multi-gate split injection flow channel structure shown;

[0027] Figure 5 is Figure 1 a schematic structural view of one perspective of the multi-gate split injection flow channel structure shown;

[0028] Figure 6 is Figure 5 a cross-sectional view taken along line C-C of the multi-gate split injection flow channel structure shown;

[0029] Figure 7 is Figure 5 a cross-sectional view taken along line D-D of the multi-gate split injection flow channel structure shown;

[0030] Figure 8 a schematic structural view of an injection mold device of an embodiment;

[0031] Figure 9 is Figure 8 a schematic structural view of another perspective of the injection mold device shown;

[0032] Figure 10 is Figure 9 a cross-sectional view taken along line E-E of the injection mold device shown;

[0033] Figure 11 is Figure 9 a cross-sectional view taken along line F-F of the injection mold device shown. Detailed Embodiments

[0034] To facilitate the understanding of the present disclosure, the present disclosure will be described more comprehensively below with reference to the relevant drawings. Preferred embodiments of the present disclosure are shown in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present disclosure can be understood more thoroughly and comprehensively.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this disclosure belongs. The terms used in the description of this disclosure herein are for the purpose of describing particular embodiments only and are not intended to limit this disclosure. The term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0037] As Figures 1 to 11 shown, the multi-gate split injection flow channel structure 10a of an embodiment is used to connect with the device main body 20a.

[0038] Furthermore, the multi-gate split injection flow channel structure 10a includes an injection component 100 and a gate splitter 200; the injection component 100 is used to pass through the connection slot 300 of the device main body 20a and is used to connect with the device main body 20a. The injection component 100 is provided with a liquid inlet 121 and an injection flow channel 122 that are connected to each other; the gate splitter 200 is used to connect with the device main body 20a. The gate splitter 200 is provided with a split cavity 211. The split cavity 211 is communicated with the injection flow channel 122. A plurality of liquid guide channels 2112a are arranged on the inner wall of the split cavity 211. The plurality of liquid guide channels 2112a are arranged at intervals. Each liquid guide channel 2112a is provided with a gate 2112d. Each gate 2112d is used to communicate with the cavity 400 of the device main body 20a.

[0039] In this embodiment, the liquid inlet 121 is used to introduce glue. The liquid inlet 121 is communicated with the injection flow channel 122. The split cavity 211 is communicated with the injection flow channel 122. A plurality of liquid guide channels 2112a are arranged on the inner wall of the split cavity 211. Each liquid guide channel 2112a is provided with a gate 2112d. Each gate 2112d is used to communicate with the cavity 400 of the device main body 20a, so that the glue is respectively injected into the cavity 400 along the injection flow channel 122, the split cavity 211, the plurality of liquid guide channels 2112a and the plurality of gates 2112d.

[0040] For the above-mentioned multi-gate split injection flow channel structure 10a, since the liquid inlet 121 is used to introduce glue, the liquid inlet 121 is communicated with the injection flow channel 122, the split cavity 211 is communicated with the injection flow channel 122, a plurality of liquid guide channels 2112a are arranged on the inner wall of the split cavity 211, each liquid guide channel 2112a is provided with a gate 2112d, and each gate 2112d is used to communicate with the cavity 400 of the device main body 20a, so that the glue is respectively injected into the cavity 400 along the injection flow channel 122, the split cavity 211, the plurality of liquid guide channels 2112a and the plurality of gates 2112d to form a product, that is, the multi-gate split injection flow channel structure 10a injects the glue into the cavity 400 through a plurality of gates 2112d to form a product;

[0041] Since the multi-gate split injection runner structure 10a injects the glue into the cavity 400 through multiple gates 2112d to form a product, the multi-gate split injection runner structure 10a has a multi-gate 2112d structure, thus avoiding the problem in the prior art that the injection runner 122 structure injects the glue into the cavity 400 through a single gate 2112d. The glue is split in the split cavity 211 and enters each liquid guiding runner 2112a, so that the amount of glue in each liquid guiding runner 2112a is small, and the glue injection amount of each gate 2112d is small. As a result, the injection pressure of each gate 2112d is small, so that the glue injected into the cavity 400 through each gate 2112d flows smoothly in the cavity 400. Thus, the flow rate of the glue in the central layer of the cavity 400 is consistent with the flow rate of the glue in the outer surface layer near the cavity 400, and the shear stress acting between the central layer and the outer surface layer of the product is small. That is, a small injection pressure results in a small internal stress inside the product, so that it is difficult for the product to crack or deform under the action of a small internal stress, and thus the service performance of the product is good.

[0042] As Figures 1 to 7 shown, in one embodiment, the split cavity 211 includes a transition groove 2111 and a plurality of extension grooves 2112. The plurality of extension grooves 2112 are arranged at intervals around the outer peripheral wall of the transition groove 2111, and each extension groove 2112 communicates with the transition groove 2111. The transition groove 2111 communicates with the injection runner 122, and each liquid guiding runner 2112a is opened on the inner wall of the corresponding extension groove 2112. The plurality of liquid guiding runners 2112a are arranged in one-to-one correspondence with the plurality of extension grooves 2112.

[0043] As Figures 1 to 2 shown, in one embodiment, the extension directions of the plurality of extension grooves 2112 form an angle with each other.

[0044] As Figures 1 to 2 shown, in one embodiment, the angle between the extension directions of two adjacent extension grooves 2112 is m, and 20° < m ≤ 180°.

[0045] As Figures 5 to 7 shown, in one embodiment, each liquid guiding runner 2112a includes a connected section 2112b and a pouring section 2112c. Each gate 2112d is arranged at the corresponding pouring section 2112c, and the connected section 2112b communicates with the corresponding extension groove 2112.

[0046] As Figures 1 to 7As shown, in one embodiment, the gate splitter 200 includes a connected base portion 210 and a pouring portion 220. The transition groove 2111, each extension groove 2112, and each connection segment 2112b are all formed in the base portion 210, and each pouring segment 2112c is formed in the pouring portion 220. Both the base portion 210 and the pouring portion 220 are used to connect to the device main body 20a.

[0047] As Figures 6 to 7 shown, in one embodiment, the diameter of each connection segment 2112b is greater than or equal to the diameter of the corresponding pouring segment 2112c.

[0048] As Figures 6 to 7 shown, in one embodiment, the diameter of each pouring segment 2112c gradually decreases from top to bottom along the extending direction of the pouring segment 2112c.

[0049] As Figures 1 to 4 shown, in one embodiment, the liquid injection assembly 100 includes a connected mounting portion 110 and a liquid injection portion 120. The liquid inlet 121 and the liquid injection flow channel 122 are both formed in the liquid injection portion 120. The mounting portion 110 is used to pass through the connection groove 300 and is used to connect to the device main body 20a, and the liquid injection portion 120 is used to be located in the connection groove 300 and is used to connect to the device main body 20a.

[0050] As Figures 8 to 11 shown, the present disclosure also provides an injection mold device 10, including a device main body 20a and the multi-gate split liquid injection flow channel structure 10a of any of the above embodiments. The device main body 20a is provided with a connection groove 300 and a cavity 400. The liquid injection assembly 100 passes through the connection groove 300 and is connected to the device main body 20a. The gate splitter 200 is connected to the device main body 20a, and each gate 2112d communicates with the cavity 400.

[0051] Compared with the prior art, the present disclosure has at least the following advantages:

[0052] 1. Since the liquid inlet 121 is used to introduce the glue, the liquid inlet 121 communicates with the liquid injection flow channel 122, the split cavity 211 communicates with the liquid injection flow channel 122, the inner wall of the split cavity 211 is provided with a plurality of liquid guiding flow channels 2112a, each liquid guiding flow channel 2112a is provided with a gate 2112d, and each gate 2112d is used to communicate with the cavity 400 of the device main body 20a, so that the glue is respectively injected into the cavity 400 along the liquid injection flow channel 122, the split cavity 211, the plurality of liquid guiding flow channels 2112a, and the plurality of gates 2112d to form a product, that is, the multi-gate split liquid injection flow channel structure 10a injects the glue into the cavity 400 through a plurality of gates 2112d to form a product;

[0053] 2. Since the multi-gate split-flow injection channel structure 10a injects the glue into the cavity 400 through multiple gates 2112d to form a product, the multi-gate split-flow injection channel structure 10a is a multi-gate 2112d structure, thereby avoiding the problem of the injection channel 122 structure in the prior art injecting the glue into the cavity 400 through a single gate 2112d, so that the glue is split in the split cavity 211 and enters each liquid guide channel 2112a, so that the amount of glue in each liquid guide channel 2112a is small, and the amount of glue injected into each gate 2112d is small. , thereby making the injection pressure of each gate 2112d smaller, so that the glue injected into the cavity 400 by each gate 2112d can flow smoothly in the cavity 400, so that the flow rate of the glue in the center layer of the cavity 400 and the flow rate of the glue in the outer layer near the cavity 400 tend to be consistent, so that the center layer and the outer layer of the product are subjected to smaller shear stress, that is, the smaller injection pressure makes the inside of the product subjected to smaller internal stress, so that the product is less likely to crack or deform under the action of smaller internal stress, thereby making the product have better performance.

[0054] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the disclosed patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the disclosed patent shall be subject to the attached claims.

Claims

1. A multi-gate split injection flow channel structure for connecting with a device main body, characterized in that, The multi-gate shunt liquid injection channel structure includes: A liquid injection assembly, which is used to pass through the connection through groove of the device body and connect with the device body. The liquid injection assembly is provided with a communicating liquid inlet and a liquid injection channel; A gate splitter, which is used to connect with the device body. The gate splitter is provided with a splitting cavity. The splitting cavity is communicated with the liquid injection channel. A plurality of liquid guiding channels are arranged on the inner wall of the splitting cavity. The plurality of liquid guiding channels are arranged at intervals. Each liquid guiding channel is provided with a gate, and each gate is used to communicate with the cavity of the device body.

2. The multi-gate split injection flow channel structure according to claim 1, wherein, The splitting cavity includes a transition groove and a plurality of extension grooves. The plurality of extension grooves are arranged around the outer peripheral wall of the transition groove at intervals. Each extension groove is communicated with the transition groove; the transition groove is communicated with the liquid injection channel. Each liquid guiding channel is arranged on the inner wall of the corresponding extension groove, and the plurality of liquid guiding channels are arranged in one-to-one correspondence with the plurality of extension grooves.

3. The multi-gate shunt liquid injection runner structure according to claim 2, characterized in that There is an included angle between the extending directions of any two of the plurality of extension grooves.

4. The multi-gate shunt liquid injection runner structure according to claim 3, characterized in that, The included angle between the extending directions of two adjacent extension grooves is m, and 20° < m ≤ 180°.

5. The multi-gate shunt liquid injection runner structure according to claim 2, characterized in that, Each liquid guiding channel includes a connected connection section and a pouring section. Each gate is arranged on the corresponding pouring section, and the connection section is communicated with the corresponding extension groove.

6. The multi-gate shunt liquid injection runner structure according to claim 5, wherein The gate splitter includes a connected base part and a pouring part. The transition groove, each extension groove and each connection section are all arranged in the base part, and each pouring section is arranged in the pouring part. The base part and the pouring part are both used to connect with the device body.

7. The multi-gate shunt injection runner structure according to claim 5, characterized in that The diameter of each connection section is greater than or equal to the diameter of the corresponding pouring section.

8. The multi-gate flow-dividing liquid injection runner structure according to claim 7, characterized in that, The diameter of each pouring section gradually decreases from top to bottom along the extending direction of the pouring section.

9. The multi-gate split injection flow channel structure according to claim 1, characterized in that, The liquid injection assembly includes a connected installation part and a liquid injection part. The liquid inlet and the liquid injection channel are both arranged in the liquid injection part. The installation part is used to pass through the connection through groove and connect with the device body, and the liquid injection part is used to be located in the connection through groove and connect with the device body.

10. An injection mold device, characterized in that, It includes a device body and the multi-gate shunt liquid injection channel structure according to any one of claims 1 to 9. The device body is provided with a connection through groove and a cavity. The liquid injection assembly passes through the connection through groove and connects with the device body. The gate splitter connects with the device body, and each gate is communicated with the cavity.

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