CN213500542U - Helical gear injection mold - Google Patents
Helical gear injection mold Download PDFInfo
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- CN213500542U CN213500542U CN202022133379.7U CN202022133379U CN213500542U CN 213500542 U CN213500542 U CN 213500542U CN 202022133379 U CN202022133379 U CN 202022133379U CN 213500542 U CN213500542 U CN 213500542U
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Abstract
The utility model provides a helical gear injection mold, which comprises a mold body, wherein the mold body comprises an upper mold plate, a lower mold plate and two mold cores, wherein the upper mold plate and the lower mold plate are mutually covered, and the two mold cores are clamped between the upper mold plate and the lower mold plate; the utility model discloses simple structure, high durability and convenient use, low in production cost, adopt two mold cores, can carry out the production of a mould two, the efficiency of production has been improved, when the die sinking, the post accessible bearing rotates the drawing of patterns, make the skewed tooth can not receive the harm, the ejecting component of rethread can be ejecting with off-the-shelf mould, make the drawing of patterns become simpler, and is convenient, can rotate the post back primary position when the return under the direction through the mutually supporting of inclined plane guide block and location chute, make injection moulding's mould can not change, be favorable to carrying on fast, the mould production of standard, make production become simple, be difficult for breaking down, be favorable to reducing the processing cost and the maintenance cost of mould production operation.
Description
Technical Field
The utility model relates to a helical gear mould technical field specifically is a helical gear injection mold.
Background
At present, in the production process of the helical gear mold, because the teeth of the helical gear are inclined, the helical gear cannot be directly ejected out when being ejected out, the helical gear mold has higher difficulty when being ejected out, the helical gear is easy to damage and even causes machine faults due to unsmooth ejection, the production efficiency is low, and the processing cost and the maintenance cost for producing and operating the mold are also increased.
SUMMERY OF THE UTILITY MODEL
The technique that exists is not enough to the aforesaid, the utility model aims at providing a helical gear injection mold, and it has solved helical gear mould production difficulty, and the drawing of patterns degree of difficulty is high, and the skewed tooth receives the damage easily, the processing cost of mould production operation and the problem of maintenance cost.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a helical gear injection mold comprises a mold body, wherein the mold body comprises an upper mold plate, a lower mold plate and two mold cores, the upper mold plate and the lower mold plate are mutually covered, the two mold cores are clamped between the upper mold plate and the lower mold plate, a stripper plate is installed at the bottom of the upper mold plate, a flow distribution plate is arranged at the bottom of the stripper plate, a pressure plate is arranged at the bottom of the flow distribution plate, a movable mold plate is arranged at the top end of the lower mold plate, a movable mold carrier plate is arranged at the top end of the movable mold plate, a top plate is arranged in the movable mold plate in a sliding mode, a funnel-shaped injection port is formed in the top end of the upper mold plate, a first flow passage communicated with the injection port is formed in the stripper plate, a second flow passage communicated with the first flow passage is formed in the flow distribution plate, the mold cores comprise a rotary cavity, a central column, a bearing, a, the top end of the rotating column is provided with a groove, a positioning ring is embedded in the groove, a plurality of positioning chutes are formed in the positioning ring, the top end of the center column is embedded in the pressing plate, the outer side wall of the center column is provided with an inclined plane guide block matched with the positioning chutes, the outer diameter of the bottom of the center column is matched with the inner diameter of the positioning ring, the center column is further provided with a third flow channel matched with the second flow channel, the bottom end of the rotating column is provided with an inclined tooth groove for helical gear products, the rotating column is further provided with a fourth flow channel for communicating the third flow channel with the inclined tooth groove, the inner side wall of the inclined tooth groove is a molded surface matched with the inclined tooth shape, the top end of the movable mold support plate is provided with a cylindrical groove corresponding to the inclined tooth groove, and the inner side wall of the cylindrical groove is a molded surface matched with the straight tooth shape, the bottom of the cylindrical groove is provided with a through hole called a cylinder penetrating hole, the ejector cylinder is an ejection element for a die consisting of a core rod and a sleeve, and the upper part of the core rod of the ejector cylinder is provided with a step matched with the central holes of the helical gear product and the cylindrical gear product and called a penetrating core; the sleeve of the ejector sleeve is slidably positioned in the sleeve penetrating hole of the movable mould carrier plate, the upper end of the sleeve is flush with the bottom of the cylindrical groove, and the lower end of the sleeve is fixedly connected with the top plate; the core rod and the core penetrating device are vertically positioned in the centers of the oblique tooth grooves and the cylindrical groove, and the lower template at the lower end of the core rod is fixedly connected.
Preferably, a plurality of guide posts and positioning bolts are further arranged in the die body.
The beneficial effects of the utility model reside in that: this design simple structure, high durability and convenient use, low in production cost, adopt two mold cores, can carry out the production of a mould two, the efficiency of production has been improved, when the die sinking, the post accessible bearing that rotates the drawing of patterns, make the skewed tooth can not receive the harm, the ejecting component of rethread can be ejecting with off-the-shelf mould, make the drawing of patterns become simpler, and is convenient, can rotate the post back primary position through mutually supporting of inclined plane guide block and location chute when the return under the direction, make injection moulding's mould can not change, be favorable to carrying on fast, the mould production of standard, make production become simple, difficult trouble takes place, be favorable to reducing the processing cost and the maintenance cost of mould production operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a helical gear injection mold according to an embodiment of the present invention;
fig. 2 is a side view of a helical gear injection mold according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a mold core;
fig. 4 is a schematic view of an injection molded product of helical gears produced by the helical gear injection mold according to an embodiment of the present invention.
Description of reference numerals:
1-upper template, 2-lower template, 3-stripper plate, 4-pressing plate, 5-movable mold carrier plate, 6-movable template, 7-guide column, 8-positioning ring, 9-rotating column, 10-bearing, 11-central column, 12-inclined guide block, 13-third runner, 14-injection port, 21-core rod, 31-first runner, 61-top plate and 62-sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 to 4, a helical gear injection mold comprises a mold body, the mold body comprises an upper mold plate 1 and a lower mold plate 2 which are mutually covered, and two mold cores clamped between the upper mold plate 1 and the lower mold plate 2, two pieces of production can be performed in one mold, the production efficiency is improved, a stripper plate 3 is installed at the bottom of the upper mold plate 1, a splitter plate is arranged at the bottom of the stripper plate 3, a pressing plate 4 is arranged at the bottom of the splitter plate, a movable mold plate 6 is arranged at the top end of the lower mold plate 2, a movable mold support plate 5 is arranged at the top end of the movable mold plate 6, a top plate 61 is slidably arranged in the movable mold plate 6, a sleeve 62 can be driven to move upwards for ejecting a finished mold, demolding is facilitated, a funnel-shaped injection port 14 is formed at the top end of the upper mold plate 1 for injecting raw materials, a first flow passage 31 communicated with the injection port 14 is formed in the stripper plate 3, a second flow passage communicated, the mould core is used for injecting raw materials into the mould core, the mould core comprises a rotary cavity arranged at the bottom end of a pressure plate 4, a central column 11, a bearing 10, a rotary column 9 and a sleeve, the rotary cavity is arranged in the rotary column 9 through the bearing 10, the rotary column 9 can rotate through the bearing 10 for demoulding, skewed teeth of a finished product mould cannot be damaged, a groove is formed in the top end of the rotary column 9, a positioning ring 8 is embedded in the groove, a plurality of positioning chutes are formed in the positioning ring 8, the pressure plate 4 is embedded in the top end of the central column 11, an inclined guide block 12 matched with the positioning chutes is arranged on the outer side wall of the central column 11, the outer diameter of the bottom of the central column 11 is matched with the inner diameter of the positioning ring 8, the positioning ring 8 can be rotated when the central column returns under guiding through the mutual matching of the inclined guide block 12 and the positioning chutes, the rotary column 9, The position is changed, the fast and standard die production is facilitated, the production becomes simple and is not easy to break down, a third flow channel 13 matched with the second flow channel is further arranged in the central column 11, a helical tooth groove for helical gear products is arranged at the bottom end of the rotating column 9, a fourth flow channel for communicating the third flow channel 13 with the helical tooth groove is further arranged in the rotating column 9, raw materials in the second flow channel can flow into the helical tooth groove through the third flow channel 13 and the fourth flow channel, so that the required die can be injection molded, the inner side wall of the helical tooth groove is a molded surface matched with the helical tooth shape to form the required helical tooth, a cylindrical groove corresponding to the helical tooth groove is arranged at the top end of the movable die carrier plate 5 and is used for injection molding of the required die, the inner side wall of the cylindrical groove is a molded surface matched with the straight tooth shape to form the required die gear shape, the bottom of the cylindrical groove is provided with a through hole called a cylinder penetrating hole, the ejector cylinder is an ejection element for the die consisting of a core rod 21 and a sleeve 62, wherein the upper part of the core rod 21 of the ejector cylinder is provided with a step matched with the central holes of the helical gear product and the cylindrical gear product called a penetrating core to form the central hole of the required helical gear die; the sleeve 62 is slidably positioned in a cylinder penetrating hole of the movable mold carrier plate, the upper end of the sleeve 62 is flush with the bottom of the cylindrical groove, a product can be ejected out after a required helical gear product is molded, so that demolding is completed, the lower end of the sleeve 62 is fixedly connected with the top plate 61, and the sleeve 62 can be driven to move upwards and is used for ejecting a finished mold out, so that demolding is completed; the core rod 21 and the core penetrating device are vertically positioned in the centers of the oblique tooth grooves and the cylindrical groove, and the lower template 2 is fixedly connected with the lower end of the core rod 21.
Further, a plurality of guide posts 7 and positioning bolts are further arranged in the die body.
When the injection mold is used, the injection mold is arranged on an injection machine and a mold opening machine, raw materials are injected into an injection port after film combination, the raw materials flow into a helical tooth groove and a column groove through a first flow passage, a second flow passage, a third flow passage and a fourth flow passage to form a required helical gear injection product, when the mold is opened, a mold opening splitter plate is firstly opened through the mold opening machine, the splitter plate drives a central column to move upwards, then a mold pressing plate is opened, a rotating column rotates through a bearing under the pulling of helical teeth of the helical gear injection product, the demolding of the helical teeth is completed in the upward movement process, so that the helical teeth cannot be damaged, a top plate pushes a sleeve to move upwards to eject the finished helical gear injection product, the demolding is completed, when the mold is closed, a positioning ring can be rotated under the guiding by the mutual matching of a bevel guide block and a positioning chute to drive the rotating column to rotate back to the original position, so that the size of the, The position changes, is favorable to carrying on quick, standard mould production to this carry on repeatedly injection moulding can, can be according to the installation of actual demand during this application mould installation for horizontal or vertical all can.
The utility model provides a design simple structure, high durability and convenient use, low in production cost, adopt two mold cores, can carry out the production of a mould two, the efficiency of production has been improved, when the die sinking, the post accessible bearing that rotates the drawing of patterns, make the skewed tooth can not receive the harm, the ejecting component of rethread can be ejecting with off-the-shelf mould, make the drawing of patterns become simpler, and is convenient, can rotate the post back primary position when the return under the direction through mutually supporting of inclined plane guide block and location chute, make injection moulding's mould can not change, be favorable to carrying out fast, the mould production of standard, make production become simple, be difficult for breaking down, be favorable to reducing the processing cost and the maintenance cost of mould production operation.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (2)
1. A helical gear injection mold comprises a mold body, wherein the mold body comprises an upper mold plate, a lower mold plate and two mold cores, the upper mold plate and the lower mold plate are mutually covered, the two mold cores are clamped between the upper mold plate and the lower mold plate, the helical gear injection mold is characterized in that a stripper plate is installed at the bottom of the upper mold plate, a flow distribution plate is arranged at the bottom of the stripper plate, a pressure plate is arranged at the bottom of the flow distribution plate, a movable mold plate is arranged at the top end of the lower mold plate, a movable mold carrier plate is arranged at the top end of the movable mold plate, a top plate is arranged in the movable mold plate in a sliding manner, a funnel-shaped injection port is formed at the top end of the upper mold plate, a first flow passage communicated with the injection port is formed in the stripper plate, a second flow passage communicated with the first flow passage is formed in the flow distribution plate, the mold cores comprise a rotary cavity, a central column, the top end of the rotating column is provided with a groove, a positioning ring is embedded in the groove, a plurality of positioning chutes are formed in the positioning ring, the top end of the center column is embedded in the pressing plate, the outer side wall of the center column is provided with an inclined plane guide block matched with the positioning chutes, the outer diameter of the bottom of the center column is matched with the inner diameter of the positioning ring, the center column is further provided with a third flow channel matched with the second flow channel, the bottom end of the rotating column is provided with an inclined tooth groove for helical gear products, the rotating column is further provided with a fourth flow channel for communicating the third flow channel with the inclined tooth groove, the inner side wall of the inclined tooth groove is a molded surface matched with the inclined tooth shape, the top end of the movable mold support plate is provided with a cylindrical groove corresponding to the inclined tooth groove, and the inner side wall of the cylindrical groove is a molded surface matched with the straight tooth shape, the bottom of the cylindrical groove is provided with a through hole called a cylinder penetrating hole, the ejector cylinder is an ejection element for a die consisting of a core rod and a sleeve, and the upper part of the core rod of the ejector cylinder is provided with a step matched with the central holes of the helical gear product and the cylindrical gear product and called a core penetrating hole; the sleeve of the ejector sleeve is slidably positioned in the sleeve penetrating hole of the movable mould carrier plate, the upper end of the sleeve is flush with the bottom of the cylindrical groove, and the lower end of the sleeve is fixedly connected with the top plate; the core rod and the core penetrating device are vertically positioned in the centers of the oblique tooth grooves and the cylindrical groove, and the lower template at the lower end of the core rod is fixedly connected.
2. The helical gear injection mold according to claim 1, wherein a plurality of guide posts and positioning bolts are further provided in the mold body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022133379.7U CN213500542U (en) | 2020-09-25 | 2020-09-25 | Helical gear injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022133379.7U CN213500542U (en) | 2020-09-25 | 2020-09-25 | Helical gear injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213500542U true CN213500542U (en) | 2021-06-22 |
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ID=76450006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022133379.7U Active CN213500542U (en) | 2020-09-25 | 2020-09-25 | Helical gear injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213500542U (en) |
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2020
- 2020-09-25 CN CN202022133379.7U patent/CN213500542U/en active Active
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