CN214605671U - Submersible bevel gear injection mold - Google Patents

Abstract

The utility model discloses a dive formula bevel gear injection mold, dive formula bevel gear injection mold include cope match-plate pattern, lower bolster, an department section of thick bamboo, department section of thick bamboo needle, are provided with lower mould benevolence, jacking piece and jacking piece drive arrangement in the lower bolster, the vertical slip setting of an department section of thick bamboo is in the lower bolster, an department section of thick bamboo is provided with the runner end, be provided with the dive runner that link up between the inside wall of runner end and the lateral wall, the runner end can stretch into the die cavity of lower mould benevolence. The submerged bevel gear injection mold can not leave the trace of a cast-in-place point on the surface of a product, and can realize the rapid demolding of the product.

Description

Submersible bevel gear injection mold

Technical Field

The utility model relates to a technical field of moulding plastics, in particular to dive formula bevel gear injection mold.

Background

In the process of processing the bevel gear, a point type gate is generally selected to feed glue into a mould, and the point type gate is convenient to design and simple in structure. However, the spot gate is easy to leave traces of the casting point on the surface of the bevel gear, and when the requirement on the dimensional accuracy of the bevel gear is high, the traces of the casting point affect the use of the bevel gear, and the exposed casting point is not beautiful. Meanwhile, when some small bevel gears are machined, because the bevel gears are small in size, planes matched with the casting points are difficult to find on the surfaces of the bevel gears, the phenomenon of difficult demolding often occurs, and products are located in the concave die and are difficult to take out.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a dive formula bevel gear injection mold can not go out the vestige of cast-in-place point on the surface of product, and can realize the quick drawing of patterns of product.

According to the embodiment of the utility model, the submersible bevel gear injection mold comprises an upper template, wherein an upper mold core is embedded in the lower surface of the upper template, two avoidance cavities are arranged in the upper template, and the avoidance cavities are arranged at two ends of the upper surface of the upper mold core; the lifting device comprises a lower template, wherein a lower die core, two lifting blocks and two driving devices are arranged in the lower template, the lower die core and the two lifting blocks are embedded in the upper surface of the lower template, the two lifting blocks and the two driving devices are arranged on two sides of the lower die core in a sliding manner, the two driving devices are respectively used for driving the lifting blocks to slide in the vertical direction, and the two lifting blocks are respectively positioned below two avoidance cavities; the ejector sleeve is vertically and slidably arranged in the lower die plate, is provided with a sprue gate end, a through diving sprue gate is arranged between the inner side wall and the outer side wall of the sprue gate end, the sprue gate end can extend into a cavity of the lower die core, and the ejector sleeve is used for forming an inner hole of a tooth handle of the bevel gear and ejecting an injection molding piece out of the lower die core; the ejector sleeve needle is arranged in the ejector sleeve in a sliding mode, the outer side wall of the ejector sleeve needle is abutted to the inner side wall of the ejector sleeve, and the ejector sleeve needle is used for ejecting redundant plastic in the sprue gate end.

According to the utility model discloses dive formula bevel gear injection mold has following beneficial effect at least: a through diving gate is arranged between the inner side wall and the outer side wall of the ejector sleeve, so that the glue inlet is positioned on the side wall of the inner hole of the bevel gear, traces of pouring points can be left on the side wall of the inner hole of the bevel gear, and the precision of the outer surface of the bevel gear cannot be influenced. By arranging the avoidance cavity, the jacking block and the jacking block driving device, when the jacking block driving device drives the jacking block to move upwards, the jacking block can apply upward pressure to two ends of the lower surface of the upper mold core, meanwhile, the middle part of the upper surface of the upper mold core is abutted against the upper mold plate, the avoidance cavities are arranged at two ends of the upper surface of the upper mold core, the two ends of the upper mold core are upwarped to generate stress deformation, and the injection molding piece is easily separated from the upper mold core; the injection molding machine is provided with the ejector sleeve and the ejector sleeve needle which can slide in the vertical direction, and after injection molding is completed, the ejector sleeve and the ejector sleeve needle move upwards, so that an injection molding part can be separated from the lower mold core.

According to some embodiments of the utility model, be provided with vibrating motor in the lower bolster.

According to some embodiments of the utility model, the lower surface of going up the mould is inlayed and is equipped with lighting device.

According to the utility model discloses a some embodiments, the both sides wall that the lower bolster is relative is provided with the heat dissipation chamber, and the intracavity that dispels the heat is provided with the heat dissipation fan.

According to some embodiments of the utility model, the heat dissipation fan adopts the radial-flow type fan blade.

According to some embodiments of the present invention, the cross-section of the side wall of the heat dissipation chamber is arranged in a zigzag shape.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a submersible bevel gear injection mold according to an embodiment of the present invention;

fig. 2 is a sectional view of the submersible bevel gear injection mold shown in fig. 1.

Reference numerals:

an upper template 100, an upper mold core 110, an avoiding cavity 120,

A lower template 200, a lower mold core 210, a jacking block 220, a driving device 230, a heat dissipation cavity 240, a heat dissipation fan 250, a vibration motor 260,

A driver barrel 300, a diving gate 310,

A trocar 400.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

According to the utility model discloses a dive formula bevel gear injection mold, cope match-plate pattern 100, lower bolster 200, department's section of thick bamboo 300 and department's section of thick bamboo needle 310, lower bolster 200 rigid, cope match-plate pattern 100 is located the top of lower bolster 200, and cope match-plate pattern 100 can move in vertical direction and carry out the compound die with the motion of lower bolster 200.

The lower surface of the upper mold plate 100 is provided with an upper mold core 110 cavity, the upper mold core 110 is embedded in the upper mold core 110 cavity, and the lower surface of the upper mold core 110 and the lower surface of the upper mold plate 100 are on the same plane. Two avoiding cavities 120 are also arranged in the upper die core 110, and the two avoiding cavities 120 are respectively arranged at two ends of the upper surface of the upper die core 110.

A lower mold core 210, two jacking blocks 220 and two driving devices 230 are arranged in the lower template 200. The lower mold core 210 and the jacking blocks 220 are disposed on the upper surface of the lower mold core 210, the two jacking blocks 220 are slidably disposed at two ends of the lower mold core 210, and the two jacking blocks 220 are disposed below the two avoiding cavities 120. The two driving devices 230 are respectively arranged below the two jacking blocks 220, driving ends of the two driving devices 230 are respectively fixedly connected with the two jacking blocks 220, and the driving devices 230 are used for driving the jacking blocks 220 to slide in the vertical direction.

The lower template 200 is provided with the through-hole of vertical direction, and department's section of thick bamboo 300 wears to locate in this through-hole, and department's section of thick bamboo 300 slidable sets up in this through-hole. One end of the ejector sleeve 300 is provided with a gate end, the inner side wall and the outer side wall of the gate end are provided with a through diving gate 310, and the gate end extends into a cavity of the lower mold core 210 during injection molding; when the injection molding is completed, the driver cartridge 300 is moved upward to eject the injection molded part from the cavity of the lower core mold 210.

The ejector sleeve needle 310 is slidably arranged inside the ejector sleeve 300, the outer side wall of the ejector sleeve needle 310 is abutted to the inner side wall of the ejector sleeve 300, and the ejector sleeve needle 310 is used for ejecting redundant glue at the pouring gate end of the ejector sleeve 300 when injection molding is completed, so that next injection molding glue feeding is facilitated.

The advantages of the arrangement are that: a through diving gate 310 is arranged between the inner side wall and the outer side wall of the ejector 300, so that the glue inlet is positioned on the side wall of the inner hole of the bevel gear, traces of pouring points can be left on the side wall of the inner hole of the bevel gear, and the precision of the outer surface of the bevel gear cannot be influenced. By arranging the avoiding cavity 120, the jacking block 220 and the driving device 230, when the driving device 230 drives the jacking block 220 to move upwards, the jacking block 220 can apply upward pressure to two ends of the lower surface of the upper mold core 110, meanwhile, as the middle part of the upper surface of the upper mold core 110 is abutted against the upper mold plate 100, the avoiding cavity 120 is arranged at two ends of the upper surface of the upper mold core 110, and two ends of the upper mold core 110 are upwarped to generate stress deformation, so that the injection molding part and the upper mold core 110 are easily separated; the ejector sleeve 300 and the ejector sleeve needle 310 which can slide in the vertical direction are arranged, and after injection molding is completed, the ejector sleeve 300 and the ejector sleeve needle 310 move upwards, so that an injection molded part can be separated from the lower mold core 210.

According to some embodiments of the present invention, a vibration motor 260 is disposed in the lower template 200. Through the arrangement of the vibration motor 260, when injection molding is completed, the lower mold core 210 and an injection molding part therein can vibrate through the work of the vibration motor 260, and the injection molding part can be promoted to be separated from a cavity of the lower mold core 210.

According to some embodiments of the utility model, the lower surface of going up the mould is inlayed and is equipped with lighting device. The advantage that sets up lighting device is, is convenient for observe and take out the inside injection molding of mould, is convenient for observe the maintenance to the mould simultaneously.

According to some embodiments of the present invention, the two opposite side walls of the lower mold plate 200 are provided with a heat dissipation chamber 240, and a heat dissipation fan 250 is provided in the heat dissipation chamber 240. Through setting up heat dissipation chamber 240 to set up heat dissipation fan 250 in heat dissipation chamber 240, can improve the radiating rate of lower bolster 200, and then improve the radiating rate of lower mould benevolence 210, make the temperature decline of the interior colloid of lower mould benevolence 210 faster, can improve the shaping speed of injection molding.

According to some embodiments of the present invention, the heat dissipation fan 250 is a radial fan blade. The radial-flow fan blade has the advantages that air can flow along the diameter direction of the heat dissipation cavity 240 to cool the side wall of the heat dissipation cavity 240, and the radial-flow fan blade has high heat dissipation efficiency.

According to some embodiments of the present invention, the cross-section of the side wall of the heat dissipation cavity 240 is configured as a zigzag. By arranging the cross section of the heat dissipation cavity 240 in a zigzag shape, the contact area of the heat dissipation cavity 240 with air can be increased, and the heat dissipation rate of the lower template 200 can be further improved.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (6)

1. The utility model provides a dive formula bevel gear injection mold which characterized in that includes:

the upper die comprises an upper die plate, an upper die core is embedded in the lower surface of the upper die plate, two avoidance cavities are arranged in the upper die plate, and the avoidance cavities are arranged at two ends of the upper surface of the upper die core;

the lower die core and the jacking blocks are embedded in the upper surface of the lower die plate, the number of the jacking blocks and the number of the driving devices are two, the two jacking blocks are arranged on two sides of the lower die core in a sliding manner, the two driving devices are respectively used for driving the jacking blocks to slide in the vertical direction, and the two jacking blocks are respectively positioned below the two avoidance cavities;

the ejector sleeve is vertically and slidably arranged in the lower template and provided with a sprue end, a through diving sprue is arranged between the inner side wall and the outer side wall of the sprue end, the sprue end can extend into a cavity of the lower die core, and the ejector sleeve is used for forming an inner hole of a tooth handle of the bevel gear and ejecting an injection molding piece out of the lower die core;

the ejector sleeve needle is arranged in the ejector sleeve in a sliding mode, the outer side wall of the ejector sleeve needle is abutted to the inner side wall of the ejector sleeve, and the ejector sleeve needle is used for ejecting redundant plastic in the sprue gate end.

2. The submersible bevel gear injection mold of claim 1, wherein: and a vibration motor is arranged in the lower template.

3. The submersible bevel gear injection mold of claim 1, wherein: and a lighting device is embedded in the lower surface of the upper template.

4. The submersible bevel gear injection mold of claim 1, wherein: and heat dissipation cavities are formed in two opposite side walls of the lower template, and heat dissipation fans are arranged in the heat dissipation cavities.

5. The submersible bevel gear injection mold of claim 4, wherein: the heat dissipation fan adopts radial-flow type fan blades.

6. The submersible bevel gear injection mold of claim 4, wherein: the cross section of the side wall of the heat dissipation cavity is in a sawtooth shape.

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