Die exhaust structure and T-shaped plug insulation die with same

Abstract

The utility model discloses a die exhaust structure and a T-shaped plug insulation die with the same. The mold exhaust structure comprises a mounting plate provided with a mounting groove and an exhaust passage, the exhaust passage is communicated with the mounting groove, and the exhaust passage extends to the edge of the mounting plate; the mold body is connected with the upper end face of the mounting plate and provided with a cavity, and the cavity penetrates through the upper end face and the lower end face of the mold body; the male die comprises an installation block and a protruding block, the installation block is detachably connected to the installation groove, the protruding block is connected with the installation block and protrudes out of the upper surface of the installation block, the protruding block is arranged in the middle of the installation block and inserted into the cavity, an annular air groove and an exhaust groove are formed in the upper surface of the installation block, and the annular air groove is located in the edge of the installation block and communicated with the exhaust channel. The exhaust grooves are formed in the radial direction of the mounting block, communicate with the cavity, are located in the inner side of the annular air groove and communicate with the annular air groove, and the depth of the exhaust grooves is smaller than that of the annular air groove. According to the utility model, the exhaust requirement can be met under the condition of ensuring the appearance requirement of a product.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold exhaust structure and a T-shaped plug insulating mold with the same. Background Art

[0002] In the prior art, the inlet and outlet cable joints of a cable distribution box are generally connected through a cable T-shaped plug. When manufacturing the T-shaped plug of the cable, an injection molding method is generally used. However, in the existing insulating molds for manufacturing T-shaped plugs, in order to ensure the appearance requirements of the obtained products, it is difficult to take into account the exhaust function during the injection molding process, and the quality of the obtained products is not good. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a mold exhaust structure and a T-shaped plug insulating mold with the same.

[0004] The solution of the utility model to solve its technical problems is as follows:

[0005] A mold exhaust structure, comprising:

[0006] A mounting plate, which is provided with a mounting groove and an exhaust passage. The exhaust passage is communicated with the mounting groove and extends to the edge of the mounting plate;

[0007] A mold body, which is connected to the upper end surface of the mounting plate. The mold body is provided with a cavity, and the cavity penetrates through the upper and lower end surfaces of the mold body;

[0008] A punch, including a mounting block and a convex block. The mounting block is detachably connected to the mounting groove. The convex block is connected to the mounting block and protrudes from the upper surface of the mounting block. The convex block is arranged in the middle of the mounting block and inserted into the cavity. The upper surface of the mounting block is provided with an annular air groove and an exhaust groove. The annular air groove is located at the edge of the mounting block and communicated with the exhaust passage. The exhaust groove is arranged along the radial direction of the mounting block and communicated with the cavity. The exhaust groove is located inside the annular air groove and communicated with the annular air groove. The depth of the exhaust groove is less than the depth of the annular air groove.

[0009] The utility model has at least the following beneficial effects: during the injection molding process, the inner wall surface of the cavity is used to form the outer wall surface of the product, the bump is used to form the inner cavity of the product, and the exhaust groove can achieve the function of exhausting gas. Moreover, due to the provision of the annular gas groove, the annular gas groove can improve the exhaust capacity of the exhaust groove. Even when the designed depth of the exhaust groove is relatively small, normal exhaust can still be ensured, improving the product quality. Thus, the exhaust requirement can be met while ensuring the appearance requirements of the product, avoiding various defects caused by the gas in the cavity of the injection-molded product, and improving the product quality.

[0010] As a further improvement of the above technical solution, the depth of the exhaust groove is less than 0.1 mm. With this setting, the influence of the exhaust groove on the product appearance can be further reduced, and the situation of glue discharge can be avoided.

[0011] As a further improvement of the above technical solution, the depth of the exhaust groove is 0.05 mm. Defining the depth of the exhaust groove as 0.05 mm can ensure that the exhaust groove only exhausts gas without discharging glue. Thus, while ensuring the exhaust function, the appearance of the product can be taken into account, reducing the influence of glue discharge from the exhaust groove on the product appearance and improving the qualified rate of the product.

[0012] As a further improvement of the above technical solution, a plurality of the exhaust grooves are provided, and the plurality of exhaust grooves are evenly arranged circumferentially around the center of the mounting block. By providing a plurality of exhaust grooves, exhaust can be carried out at multiple positions of the injection-molded product during the injection molding process, thus avoiding the situation of poor exhaust effect at local parts of the mold.

[0013] As a further improvement of the above technical solution, one of the exhaust grooves is arranged towards the exhaust passage. With this setting, the obstruction between one of the exhaust grooves and the external atmosphere is reduced, and the exhaust effect can be further improved.

[0014] As a further improvement of the above technical solution, a plurality of the mounting grooves and the exhaust passages are respectively provided, the mounting grooves and the exhaust passages are arranged in one-to-one correspondence, a plurality of the punch dies are also provided, the punch dies and the mounting grooves are arranged in one-to-one correspondence, a plurality of the cavities of the mold body are also provided, and the cavities and the punch dies are arranged in one-to-one correspondence. With this setting, it can be adapted to the mold used for simultaneously casting multiple products, which is beneficial to the large-scale production of products and improves the production and manufacturing efficiency of products.

[0015] As a further improvement of the above technical solution, the size of each punch die is the same, the size of each cavity is the same, and each exhaust passage is arranged in parallel. With this setting, the exhaust effect of each cavity can be ensured to be the same, and the sizes of the multiple products made are the same, which is more beneficial to the large-scale production of products of the same model.

[0016] As a further improvement of the above technical solution, one end of the exhaust groove close to the center of the mounting block is arc-shaped. With this arrangement, the exhaust effect can be further improved, and stress concentration at the end position of the exhaust groove can be reduced.

[0017] As a further improvement of the above technical solution, chamfers are provided at the edges of the lower surface of the mounting block. The chamfers can remove the burrs at the edges of the mounting block, reduce stress concentration, and make the assembly between the mounting block and the mounting groove easier, which is beneficial to the assembly between the mounting plate and the punch.

[0018] A T-shaped plug insulating mold includes the mold exhaust structure described in any one of the above technical solutions. The T-shaped plug insulating mold can manufacture T-shaped plugs. Since the mold exhaust structure described in any one of the above technical solutions is provided, the exhaust channels formed by the exhaust grooves, the annular air grooves, and the exhaust ducts in the mold exhaust structure can effectively discharge the gas in the cavity, and various defects caused by the gas in the cavity can be avoided while taking into account the appearance of the T-shaped plug, thereby improving the quality of the T-shaped plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below. Obviously, the described drawings are only a part of the embodiments of the present invention, rather than all the embodiments. Those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative efforts.

[0020] Figure 1 is the overall structural schematic diagram of the mold exhaust structure according to the embodiment of the present invention;

[0021] Figure 2 is the structural schematic diagram of the mold exhaust structure according to the embodiment of the present invention when the mold body is omitted;

[0022] Figure 3 is the top view of the mold exhaust structure according to the embodiment of the present invention when the mold body is omitted;

[0023] Figure 4 is Figure 3 the cross-sectional view in the A-A direction in

[0024] Figure 5 is Figure 4 the partial enlarged schematic diagram of part B in

[0025] Reference numerals: 100, mounting plate; 110, exhaust duct; 200, mold body; 210, cavity; 300, punch; 310, mounting block; 311, exhaust groove; 312, annular air groove; 320, convex block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0027] In the description of the present utility model, when it comes to orientation descriptions, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0028] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the original number, and above, below, within, etc. are understood as including the original number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0029] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meaning of the above words in the present utility model in combination with the specific content of the technical solution.

[0030] Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts all belong to the scope of protection of the present utility model. Each technical feature in the present utility model can be combined interactively without mutual contradiction or conflict.

[0031] During the injection molding process, when the molten rubber material enters the mold cavity 210, it is necessary to exhaust the air in the cavity 210, including the air existing in the cavity 210 and the gating system, the water vapor generated by the evaporation of the moisture contained in the rubber material at high temperature, the gas generated by the decomposition of the rubber material at high temperature, the gas generated by the volatilization or chemical reaction of some additives in the rubber material, etc. However, the existing mold exhaust structure cannot take into account both the product appearance requirements and the exhaust function, and the product quality obtained is difficult to be accepted by consumers.

[0032] In response to this, the embodiments of the present utility model propose a mold exhaust structure, referring to Figures 1 to 5, the mold exhaust structure includes a mold body 200, a mounting plate 100, and a punch 300, which can take into account the appearance requirements of the injection-molded product and the exhaust function during the injection process, and obtain products with good quality. The mold exhaust structure of this embodiment can be applied to the T-shaped plug insulation mold, and the qualified rate of the T-shaped plug made by the T-shaped plug insulation mold with the mold exhaust structure of this embodiment is high.

[0033] In this embodiment, the mounting plate 100 is provided with a mounting groove and an exhaust passage 110. The exhaust passage 110 is communicated with the mounting groove, and the exhaust passage 110 extends to the edge of the mounting plate 100. The mold body 200 is connected to the upper end surface of the mounting plate 100. The mold body 200 is provided with a cavity 210, and the cavity 210 penetrates through the upper and lower end surfaces of the mold body 200. The punch 300 includes a mounting block 310 and a convex block 320. The convex block 320 is connected to the mounting block 310, and the convex block 320 protrudes from the upper surface of the mounting block 310. The convex block 320 is located at the middle position of the mounting block 310. The upper surface of the mounting block 310 is provided with an annular air groove 312 and an exhaust groove 311. Among them, the annular air groove 312 is arranged at the edge of the mounting block 310, and the exhaust groove 311 is arranged along the radial direction of the mounting block 310 and is located inside the annular air groove 312. The exhaust groove 311 is communicated with the annular air groove 312.

[0034] During use, the punch 300 is installed in the mounting groove of the mounting plate 100, and the convex block 320 is inserted into the cavity 210. The mounting block 310 of the punch 300 cooperates with the inner wall of the mounting groove, the annular air groove 312 is communicated with the exhaust passage 110, and the exhaust groove 311 is communicated with the cavity 210.

[0035] It can be understood that the punch 300 can be locked on the mounting plate 100 through connecting parts such as screws to avoid the relative movement between the punch 300 and the mounting plate 100 during the pouring process and ensure the stable quality of the poured product.

[0036] It can be understood that during the injection process, the inner wall surface of the cavity 210 is used to form the outer wall surface of the product, and the specific shape of the cavity 210 matches the actual outer shape required by the product; the convex block 320 is used to form the inner cavity of the product, and the shape of the convex block 320 matches the actual inner cavity shape required by the product. It can be understood that the connection between the mounting block 310 and the inner wall of the mounting groove is detachable, and the connection between the mounting plate 100 and the mold body 200 is also detachable. When demolding, the mold body 200, the mounting block 310 and the mounting plate 100 can be separated, which is more conducive to product demolding.

[0037] It should be noted that with reference to Figure 5, in this embodiment, the depth of the exhaust groove 311 in the up-down direction is less than the depth of the annular air passage in the up-down direction. During the injection molding process, the exhaust groove 311 can achieve the function of exhausting air. Moreover, due to the provision of the annular air groove 312, the annular air groove 312 can improve the air exhausting ability of the exhaust groove 311. Even when the designed depth of the exhaust groove 311 is small, normal air exhausting can be ensured, improving the product quality.

[0038] In some embodiments, in order to further reduce the impact of the exhaust groove 311 on the product appearance, the depth of the provided exhaust groove 311 is less than 0.1 mm. It can be understood that, in order to adapt to the accuracy of existing processing equipment, the depth of the exhaust groove 311 is generally greater than 0.02 mm.

[0039] Preferably, in this embodiment, the depth of the exhaust groove 311 is 0.05 mm. According to tests, the exhaust groove 311 with a depth of 0.05 mm can achieve a good air exhausting effect. Moreover, the exhaust groove 311 with this depth can ensure that only air is exhausted from the exhaust groove 311 and no glue is discharged. Thus, while ensuring the air exhausting function, the product appearance can be taken into account, reducing the impact on the product appearance caused by the glue discharged from the exhaust groove 311 and improving the product qualification rate.

[0040] In some embodiments, a plurality of exhaust grooves 311 are provided, and the plurality of exhaust grooves 311 are evenly arranged around the center circumference of the mounting block 310. It can be understood that providing a plurality of exhaust grooves 311 can exhaust air at multiple positions of the injection molded product during the injection molding process, thus avoiding the situation of poor local air exhausting effect of the mold.

[0041] Specifically in this embodiment, four exhaust grooves 311 are provided on the convex mold 300, and a good air exhausting effect can be achieved.

[0042] In some embodiments, on the basis of the above embodiment, one of the exhaust grooves 311 is arranged facing the exhaust passage 110, which can further improve the air exhausting effect.

[0043] In other embodiments, a plurality of exhaust passages 110 communicating with the same mounting groove are provided, the number of exhaust passages 110 is the same as the number of exhaust grooves 311, and each exhaust groove 311 corresponds to one exhaust passage 110 respectively, which can further improve the air exhausting effect.

[0044] It can be understood that when one exhaust passage 110 communicating with the same mounting groove is provided, the processing technology of the mounting plate 100 can be simplified, and the processing cost of the mold air exhausting structure is lower.

[0045] In some embodiments, there are multiple installation grooves and exhaust channels 110 respectively. The multiple installation grooves and the multiple exhaust channels 110 are arranged in one-to-one correspondence. There are also multiple cavity molds 210 on the punch 300 and the mold body 200, and the cavity molds 210 on the punch 300 and the mold body 200 are arranged in one-to-one correspondence. The punch 300 is arranged in one-to-one correspondence with the installation groove.

[0046] With such an arrangement, it can adapt to the use of molds for simultaneously casting multiple products. It can be understood that the multiple installation grooves do not affect each other, and the multiple exhaust channels 110 can be connected to each other and then communicate with the external atmosphere of the mounting plate 100, or be respectively connected to the external atmosphere of the mounting plate 100.

[0047] In this embodiment, two installation grooves and two exhaust channels 110 are provided on the same mounting plate 100, and two punches 300 are correspondingly arranged. There are also two cavity molds 210 on the corresponding mold body 200. By casting products with the mold having the mold exhaust structure of this embodiment, two products with good quality can be obtained simultaneously, greatly improving the production efficiency of the products.

[0048] It can be understood that the sizes of each punch 300 are the same, the sizes of each cavity mold 210 on the same mold body 200 are the same, and each exhaust channel 110 is arranged in parallel, which can ensure the same exhaust effect for each cavity mold 210 and the same sizes of the multiple products produced.

[0049] In this embodiment, specifically, the sizes of the two punches 300 are the same, and the two exhaust channels 110 are parallel to each other, which can ensure that the two products cast by the same mold have the same size.

[0050] In some embodiments, one end of the exhaust groove 311 close to the center of the mounting block 310 is arc-shaped. With such an arrangement, the exhaust effect can be further improved, and the stress concentration at the end position of the exhaust groove 311 can be reduced.

[0051] In some embodiments, a chamfer is provided on the lower surface of the mounting block 310, and the chamfer is located at the edge of the mounting block 310. It can be understood that the setting of the chamfer can remove the burrs at the edge of the mounting block 310, reduce the stress concentration, and make the assembly between the mounting block 310 and the installation groove easier, which is beneficial to the assembly between the mounting plate 100 and the punch 300.

[0052] In some embodiments, the inner walls of the exhaust groove 311, the exhaust channel 110, and the annular air groove 312 are all polished to reduce the roughness of the inner walls of the exhaust groove 311, the exhaust channel 110, and the annular air groove 312, so as to ensure the smooth progress of exhaust.

[0053] It can be understood that the exhaust groove 311, the exhaust duct, and the annular air groove 312 need to be cleaned regularly to avoid blockage in the exhaust passage formed by the exhaust groove 311, the exhaust duct, and the annular air groove 312, and ensure the smooth progress of exhaust.

[0054] On the other hand, the embodiment of the present utility model also provides a T-shaped plug insulation mold, including the mold exhaust structure proposed in any of the above embodiments. It can be understood that due to the presence of the mold exhaust structure in the T-shaped plug insulation mold, the qualified rate of the cast T-shaped plugs is high.

[0055] It can be understood that when the mold exhaust structure is applied in the T-shaped plug insulation mold, the product made is a T-shaped plug, which has a main channel and two sub-channels. The two sub-channels are respectively located on both sides of the main channel and are connected to the main channel. The mold exhaust structure of this embodiment can be used to exhaust the injection molding of one of the sub-channels.

[0056] In some embodiments, the T-shaped plug insulation mold includes an upper mold and a lower mold. The connection surface between the upper mold and the lower mold is the parting surface. The upper mold and the lower mold respectively have the above-mentioned mold exhaust structure, and the mold exhaust structures located in the upper mold and the lower mold are symmetrically arranged with respect to the parting surface. The mold exhaust structure located in the lower mold has the same orientation as the mold exhaust structure described in the first aspect, while the mold exhaust structure located in the upper mold is upside down with respect to the orientation of the mold exhaust structure described in the first aspect. The mold bodies 200 of the upper mold and the lower mold are detachably connected. When the mold is closed, the cavities 210 of the mold bodies 200 of the upper mold and the lower mold are interconnected.

[0057] It can be understood that the pouring gate of the T-shaped plug insulation mold can be arranged at the mold body 200 of either the upper mold or the lower mold. In this embodiment, the pouring gate is arranged on the side wall of the mold body 200 of the lower mold, and a main runner is arranged at the mold body 200 of the lower mold. The runner connected to the main runner is located at the parting surface, and the runner is connected to the cavity 210.

[0058] During use, rubber material is injected through the pouring gate, and the rubber material is molded in the cavity 210. During the injection molding process, the exhaust passage formed by the exhaust groove 311, the annular air groove 312, and the exhaust duct 110 can effectively discharge the gas in the cavity 210, thereby avoiding various defects caused by the gas in the cavity 210 in the product. Moreover, the exhaust groove 311 connected to the cavity 210 only exhausts gas and does not discharge glue, and the exhaust passage does not affect the appearance of the obtained product.

[0059] The above has specifically described the preferred embodiments of the present utility model, but the present invention is not limited to the described embodiments. Those skilled in the art can also make various equivalent modifications or substitutions without departing from the spirit of the present utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A mold exhaust structure, characterized in that: include: A mounting plate, wherein the mounting plate is provided with a mounting groove and an exhaust duct, the exhaust duct is communicated with the mounting groove, and the exhaust duct extends to an edge of the mounting plate; A mold body, the mold body is connected to the upper end surface of the mounting plate, the mold body is provided with a cavity, and the cavity runs through the upper and lower end surfaces of the mold body; A punch comprises a mounting block and a protrusion, wherein the mounting block is detachably connected to the mounting groove, the protrusion is connected to the mounting block and protrudes from the upper surface of the mounting block, the protrusion is arranged in the middle of the mounting block and inserted into the cavity, an annular air groove and an exhaust groove are arranged on the upper surface of the mounting block, the annular air groove is located at the edge of the mounting block and is connected to the exhaust duct, the exhaust groove is arranged along the radial direction of the mounting block and is connected to the cavity, the exhaust groove is located on the inner side of the annular air groove and is connected to the annular air groove, and the depth of the exhaust groove is less than the depth of the annular air groove.

2. The mold exhaust structure according to claim 1, characterized in that: The depth of the exhaust groove is less than 0.1 mm.

3. The mold exhaust structure according to claim 2, characterized in that: The depth of the exhaust groove is 0.05 mm.

4. The mold exhaust structure according to claim 1, characterized in that: There are a plurality of exhaust grooves, and the plurality of exhaust grooves are evenly arranged around the central circumference of the mounting block.

5. The mold exhaust structure according to claim 4, characterized in that: One of the exhaust grooves is arranged toward the exhaust passage.

6. The mold exhaust structure according to claim 1, characterized in that: There are multiple mounting grooves and multiple exhaust ducts respectively, and the mounting grooves and the exhaust ducts are arranged in a one-to-one correspondence. There are also multiple punches, and the punches are arranged in a one-to-one correspondence with the mounting grooves. There are also multiple cavities of the mold body, and the cavities are arranged in a one-to-one correspondence with the punches.

7. The mold exhaust structure according to claim 6, characterized in that: The size of each of the punches is consistent, the size of each of the cavities is consistent, and each of the exhaust passages is arranged parallel to each other.

8. The mold exhaust structure according to claim 1, characterized in that: One end of the exhaust groove close to the center of the mounting block is in an arc shape.

9. The mold exhaust structure according to claim 1, characterized in that: The lower surface edge of the mounting block is chamfered.

10. A T-type plug insulation mold, characterized in that: The method comprises the mold venting structure as claimed in any one of claims 1 to 9.

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