CN220390166U - Rotatory thread-off injection mold of many type chamber gear train - Google Patents
Rotatory thread-off injection mold of many type chamber gear train Download PDFInfo
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- CN220390166U CN220390166U CN202321799456.XU CN202321799456U CN220390166U CN 220390166 U CN220390166 U CN 220390166U CN 202321799456 U CN202321799456 U CN 202321799456U CN 220390166 U CN220390166 U CN 220390166U
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- 238000002347 injection Methods 0.000 title claims abstract description 12
- 239000007924 injection Substances 0.000 title claims abstract description 12
- 238000001746 injection moulding Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of injection molds, in particular to a multi-cavity gear set rotary thread-removing injection mold, which comprises a bottom mold, a core assembly and a core fixing plate, wherein the core assembly is arranged on the bottom mold; the core assembly comprises a driving wheel, driven wheels, a core gear and a core insert, wherein the core insert is arranged in two rows, the core is arranged in the core insert through internal threads, the core gear is coaxially arranged in the middle of the core, the driving wheel and the driven wheels are arranged between the two rows of core inserts, the driving wheel is connected with the core gear in a meshed mode, and the driven wheels are connected with a rack in a meshed mode. According to the utility model, the oil cylinder drives the rack to reciprocate, and the bearing is arranged in the driving wheel, so that the short-stroke movement of the rack can be realized to finish the thread removing work.
Description
Technical Field
The utility model belongs to the technical field of molds, and relates to a rotary thread-removing mold, in particular to a rotary thread-removing injection mold with a multi-cavity gear set.
Background
When producing a plastic part with a threaded structure, the part cannot be directly removed due to interference between the part and a threaded part of a die, but the threaded matching part is firstly screwed out by rotation of the die and then is removed. The existing thread-removing die generally adopts schemes such as matching of racks and thread-removing rods or screw rod control to remove the die of the workpiece, and most of driving elements such as hydraulic motors are adopted for driving the rotating parts, so that most of thread workpiece dies are complex in structure, high in cost and low in production efficiency.
Patent documents related to the present application were not found by searching.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides the multi-cavity gear set rotary thread-removing injection mold, wherein the gear rack is driven to reciprocate by the oil cylinder, and the bearing is arranged in the driving wheel, so that the short-stroke movement of the gear rack can be realized to finish thread-removing work, the stroke of the movement of the oil cylinder is reduced by providing power for the thread mold core through the movement of the oil cylinder and the gear rack, and the thread production cost is greatly reduced.
The utility model solves the technical problems by adopting the following technical scheme:
the rotary thread-removing injection mold comprises a bottom mold, a core assembly and a core fixing plate, wherein the core assembly is arranged on the bottom mold, the core fixing plate is in butt joint with the bottom mold and is used for fixing the core assembly, a movable mold is arranged on the core fixing plate, a support frame is horizontally arranged on one side of the core fixing plate, an oil cylinder is arranged on one side of the support frame, and a rack is arranged at the output end of the oil cylinder; the mold core assembly comprises a driving wheel, driven wheels, mold cores, mold core gears and mold core inserts, wherein the mold core inserts are arranged on a bottom mold in two rows, each mold core insert is internally provided with a mold core in a threaded mode, the mold core gears are coaxially arranged in the middle of the mold cores, a rotating assembly is further arranged between the two rows of mold core inserts, the rotating assembly comprises the driving wheel and the driven wheels which are coaxially arranged, bearings are arranged in the driving wheel, the driving wheel is connected with the mold core gears in a meshed mode, the driven wheels are connected with racks in a meshed mode, and a driving oil cylinder drives the racks to move back and forth to achieve mold core rotation.
And a plurality of limiting blocks are further arranged on one side of the rack, which is not provided with teeth, and the limiting blocks are fixedly arranged on the bottom die and used for controlling the movement precision of the rack.
And moreover, an external thread matched with the internal thread of the core insert is formed at the bottom end of the core, a workpiece is arranged at the top end of the core, an injection molding cavity thread groove is formed in the movable mold, and an injection molding opening is formed in the center of the top end of the workpiece.
And moreover, the support frame is a U-shaped support frame, and the hollow part of the U-shaped support frame is used for arranging a rack.
The utility model has the advantages and positive effects that:
according to the utility model, the oil cylinder drives the rack to reciprocate, the bearing is arranged in the driving wheel, so that the short-stroke movement of the rack can be realized to finish the thread removing work, the movement stroke of the oil cylinder is reduced by providing power for the threaded mold core through the movement of the oil cylinder and the rack, and the production cost of a threaded product is greatly reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the internal structure of the present utility model;
FIG. 3 is a schematic diagram of a mold core structure of the present utility model;
FIG. 4 is a schematic diagram of the driving wheel structure of the present utility model;
fig. 5 is a schematic view of the rack mounting position of the present utility model.
Detailed Description
The utility model will now be described in further detail by way of specific examples, which are given by way of illustration only and not by way of limitation, with reference to the accompanying drawings.
The rotary thread-removing injection mold comprises a bottom mold, a core assembly and a core fixing plate 8, wherein the core assembly is arranged on the bottom mold, the core fixing plate is in butt joint with the bottom mold and is used for fixing the core assembly, a movable mold is arranged on the core fixing plate, a support frame is horizontally arranged on one side of the core fixing plate, an oil cylinder 1 is arranged on one side of the support frame, and a rack 7 is arranged at the output end of the oil cylinder; the core subassembly includes action wheel 2, follows driving wheel 10, core 9, core gear 4 and core insert 5, the core insert is two rows and sets up on the die block, and every equal screw thread is provided with the core in the core insert, the coaxial system in core middle part has the core gear, and still is provided with rotation subassembly between two rows of core inserts, rotation subassembly is including the action wheel and the follow driving wheel of coaxial setting, be provided with the bearing in the action wheel, the action wheel is connected with the meshing of core gear, follow driving wheel and rack meshing are connected, and actuating cylinder drives rack round trip movement and realizes that the core is rotatory.
In the implementation of the utility model, one side of the rack without teeth is also provided with a plurality of limiting blocks 6, and the limiting blocks are fixedly arranged on the bottom die and used for controlling the movement precision of the rack;
the mold core bottom system has the external screw thread with core insert internal screw thread looks adaptation, and the core top is provided with finished piece 3, the movable mould is interior to be made has the die cavity thread groove of moulding plastics for the finished piece top is the screw thread feature, and its mouth of moulding plastics sets up in finished piece top center department, makes the finished piece take place not rotatory, thereby accomplishes the action of taking off the screw thread.
The support frame is a U-shaped support frame, and the hollow part of the U-shaped support frame is used for arranging a rack;
the driving wheel is positioned in the middle of the driven wheel and is used for driving the driven wheel to rotate so as to perform a thread-off action; the driven wheel and the core of the die are integrated, the rack is driven by the oil cylinder to drive the driven wheel to reciprocate, so that the driving wheel is driven to rotate, the driven wheel rotates along with the reciprocating movement, the core of the driven wheel moves downwards when the threads are separated, and a workpiece is left on one side of the movable die.
The specific operation process comprises the following steps: the rack 7 is connected with the oil cylinder 1 and is arranged on the core fixing plate 8, the movement precision is controlled by the limiting block 6, the driven wheel 10 is meshed with the rack 7 and is coaxially fixed with the driving wheel 2, when the oil cylinder 1 drives the rack 7 to reciprocate, the driven wheel 10 correspondingly rotates, meanwhile, the driving wheel 2 is meshed with the core gear 4, the core 9 is driven to rotate, and the core 9 is screwed into the core insert 5 downwards, so that the fixation of the core during demolding is realized; the top feature of the part 3 cooperates with the cavity so that the part does not rotate, thereby completing the unthreading action.
Although the embodiments of the present utility model and the accompanying drawings have been disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the utility model and the appended claims, and therefore the scope of the utility model is not limited to the embodiments and the disclosure of the drawings.
Claims (4)
1. The utility model provides a rotatory thread-releasing injection mold of many type chamber gear train which characterized in that: the mold comprises a bottom mold, a core assembly and a core fixing plate, wherein the core assembly is arranged on the bottom mold, the core fixing plate is butted on the bottom mold and is used for fixing the core assembly, a movable mold is arranged on the core fixing plate, a support frame is horizontally arranged on one side of the core fixing plate, an oil cylinder is arranged on one side of the support frame, and a rack is arranged at the output end of the oil cylinder; the mold core assembly comprises a driving wheel, driven wheels, mold cores, mold core gears and mold core inserts, wherein the mold core inserts are arranged on a bottom mold in two rows, each mold core insert is internally provided with a mold core in a threaded mode, the mold core gears are coaxially arranged in the middle of the mold cores, a rotating assembly is further arranged between the two rows of mold core inserts, the rotating assembly comprises the driving wheel and the driven wheels which are coaxially arranged, bearings are arranged in the driving wheel, the driving wheel is connected with the mold core gears in a meshed mode, the driven wheels are connected with racks in a meshed mode, and a driving oil cylinder drives the racks to move back and forth to achieve mold core rotation.
2. The multi-cavity gearset rotary unthreading injection mold according to claim 1, characterised in that: and one side of the rack, which is not provided with teeth, is also provided with a plurality of limiting blocks, and the limiting blocks are fixedly arranged on the bottom die and used for controlling the movement precision of the rack.
3. The multi-cavity gearset rotary unthreading injection mold according to claim 1, characterised in that: the mold core is characterized in that the bottom end of the mold core is provided with external threads matched with the internal threads of the mold core insert, the top end of the mold core is provided with a workpiece, an injection molding cavity thread groove is formed in the movable mold, and an injection molding opening is formed in the center of the top end of the workpiece.
4. The multi-cavity gearset rotary unthreading injection mold according to claim 1, characterised in that: the support frame is U type support frame, the cavity department of U type support frame is used for setting up the rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321799456.XU CN220390166U (en) | 2023-07-10 | 2023-07-10 | Rotatory thread-off injection mold of many type chamber gear train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321799456.XU CN220390166U (en) | 2023-07-10 | 2023-07-10 | Rotatory thread-off injection mold of many type chamber gear train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220390166U true CN220390166U (en) | 2024-01-26 |
Family
ID=89600145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321799456.XU Active CN220390166U (en) | 2023-07-10 | 2023-07-10 | Rotatory thread-off injection mold of many type chamber gear train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220390166U (en) |
-
2023
- 2023-07-10 CN CN202321799456.XU patent/CN220390166U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: TIANJIN SILVER BASIS TECHNOLOGY Co.,Ltd. Assignor: TIANJIN University OF TECHNOLOGY AND EDUCATION (CHINA VOCATIONAL TRAINING INSTRUCTOR TRAINING CENTER) Contract record no.: X2024980004996 Denomination of utility model: A Injection Mold for Rotating Thread Removal of Multi cavity Gear Set Granted publication date: 20240126 License type: Common License Record date: 20240428 |