CN111791432A - Machining die for precision parts - Google Patents
Machining die for precision parts Download PDFInfo
- Publication number
- CN111791432A CN111791432A CN202010424787.XA CN202010424787A CN111791432A CN 111791432 A CN111791432 A CN 111791432A CN 202010424787 A CN202010424787 A CN 202010424787A CN 111791432 A CN111791432 A CN 111791432A
- Authority
- CN
- China
- Prior art keywords
- core
- fixing plate
- mold
- mold frame
- core fixing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
- B29C45/2606—Guiding or centering means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7312—Construction of heating or cooling fluid flow channels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/753—Medical equipment; Accessories therefor
Abstract
The invention discloses a machining die for precision parts, which comprises a front die carrier, a core fixing plate and a rear die carrier, wherein the front die carrier, the core fixing plate and the rear die carrier are fixedly arranged on a front die carrier plate, one side of the core fixing plate, which is close to the front die carrier, is provided with a core shell, a screw thread sleeve is sleeved on a screw rod, the screw thread sleeve is provided with a side core, the core fixing plate is provided with a small core, two sides of the surface of the rear die carrier are respectively provided with a rear die carrier seat, an ejector rod fixing plate is arranged between the two rear die carrier seats, the ejector rod fixing plate is provided with a plurality of ejector rods, the core fixing plate is provided with at least two guide columns, the front die carrier is provided with guide sleeves. The invention has simple structure and solves the problem that the working efficiency is greatly reduced because the forming structure is complicated and the operation is inconvenient when the existing injection mold is used for producing the plastic part with the side groove.
Description
Technical Field
The invention relates to a machining die for precision parts, and belongs to the technical field of injection molds.
Background
The processing of working of plastics and the injection molding among the medical instrument at present all utilizes injection mold to process and make, and it can be in batches process for the preparation volume is big, but current injection mold has the working of plastics of side recess in production, and its shaping structure is complicated, the operation of being not convenient for, thereby makes the great reduction of work efficiency.
Disclosure of Invention
The invention aims to solve the technical problem of providing a processing mold for precision parts, which has a simple structure and solves the problem that the working efficiency is greatly reduced because the forming structure is complicated and the operation is inconvenient when the existing injection mold is used for producing plastic parts with side grooves.
In order to solve the technical problems, the invention adopts the technical scheme that: a processing mould for precision parts comprises a front mould frame, a core fixing plate and a rear mould frame which are fixedly arranged on a front mould frame plate, wherein the core fixing plate is positioned between the front mould frame and the rear mould frame, a groove for embedding a core on the core fixing plate is formed in the front mould frame, so that at least one forming cavity is formed between the front mould frame and the core on the core fixing plate, an injection molding piece is formed in the forming cavity, a through main runner is formed in the front mould frame and the front mould frame plate, and a sub-runner is communicated with the output end of the main runner so as to communicate the main runner, the sub-runner and the groove in the front mould frame;
one side of the core fixing plate, which is close to the front mould frame, is provided with a core shell, a screw rod parallel to the core fixing plate is rotatably arranged in the core shell, a thread sleeve is sleeved on the screw rod and can reciprocate along the screw rod, the thread sleeve is provided with a side core, one end of the side core is connected with the thread sleeve through a movable block, the other end of the side core extends out of the core shell, and the core fixing plates positioned at the two sides of the core shell are provided with small cores;
the rear mould frame is provided with a rear mould frame seat on two sides of the surface of the core fixing plate, the two rear mould frame seats are provided with a mandril fixing plate capable of moving back and forth, the mandril fixing plate is provided with a plurality of mandrils corresponding to the forming cavity, and the mandrils can be embedded into the forming cavity; the mold core fixing plate is provided with at least two guide pillars, the front mold frame is provided with a guide sleeve for embedding the guide pillars, the guide sleeve can reciprocate along the guide pillars, a cooling runner is further arranged in the front mold frame, and the cooling runner is distributed outside the molding cavity.
The further improved scheme in the technical scheme is as follows:
1. in the scheme, the front die frame is fixedly connected with the front die frame plate through a plurality of groups of screws.
2. In the scheme, the input end of the main runner is arranged in the center of the surface of the front mold frame plate back to the rear mold frame.
3. In the scheme, the input end of the main runner on the front die carrier plate is provided with a positioning ring.
4. In the scheme, a power device for driving the screw rod to rotate is fixed on the inner wall of the core shell.
5. In the scheme, the two ends of the power device are provided with the screw rods.
6. In the above scheme, the power device is electrically connected with the external controller and the sensor.
7. In the scheme, one end of the small core is positioned in the core fixing plate, and the other end of the small core extends out of the core fixing plate.
8. In the above scheme, the core shell is internally provided with a sliding chute matched with the movable block.
9. In the scheme, the core fixing plate, the rear die frame and the rear die frame seat are fixedly connected through screw rods.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. the processing die for the precision part is simple in structure and convenient to operate, improves the processing efficiency of the injection molding part with the grooves on the side edges, and improves the forming effect of the grooves on the side edges of the injection molding part; in addition, an ejector rod fixing plate capable of moving back and forth is arranged between the two rear die carrier seats, a plurality of ejector rods corresponding to the forming cavities are arranged on the ejector rod fixing plate, the ejector rod fixing plate is pushed by a hydraulic pusher, the formed part is ejected by the ejector rods, the structure is simple, the formed part can be taken out quickly, and the working efficiency is further improved.
2. According to the processing die for the precision parts, the core fixing plate is provided with at least two guide pillars, the front die carrier is provided with the guide sleeve for embedding the guide pillars, and the guide sleeve can reciprocate along the guide pillars, so that the die assembly precision is improved, the processing precision of an injection molding piece is further ensured, and the product quality is improved; in addition, a cooling runner is further arranged in the front mold frame, and after materials in a molten state are fed into the forming cavity through the main runner and the sub-runners, cooling liquid is introduced into the cooling runner, so that the materials are rapidly cooled and formed, and the processing efficiency and the forming effect are improved.
Drawings
FIG. 1 is a schematic perspective view of a mold for machining a precision part according to the present invention;
FIG. 2 is a schematic structural diagram of a core-pulling mechanism in a processing mold for precision parts according to the present invention;
FIG. 3 is a schematic structural view of an injection-molded part in a mold for processing a precision part according to the present invention;
FIG. 4 is a schematic structural diagram of a machining die for precision parts according to the present invention.
In the above drawings: 1. a front mold frame plate; 2. a front mold frame; 3. a core fixing plate; 4. a rear mould frame; 5. a rear mold frame base; 6. a mandril fixing plate; 701. a core shell; 702. a power device; 703. a screw; 704. a threaded sleeve; 705. a movable block; 706. a chute; 707. a side core; 8. positioning rings; 9. a main flow channel; 10. a shunt channel; 11. an injection molded part; 12. a screw; 13. a guide sleeve; 14. a guide post; 15. a cooling flow channel; 16. a small core; 17. a screw shaft; 18. and a push rod.
Detailed Description
In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.
Example 1: a processing mould for precision parts comprises a front mould frame 2, a core fixing plate 3 and a rear mould frame 4 which are fixedly arranged on a front mould frame plate 1, wherein the core fixing plate 3 is positioned between the front mould frame 2 and the rear mould frame 4, a groove for embedding a core on the core fixing plate 3 is formed in the front mould frame 2, so that at least one forming cavity is formed between the front mould frame 2 and the core on the core fixing plate 3, an injection molding part 11 is formed in the forming cavity, a through main runner 9 is formed on the front mould frame 2 and the front mould frame plate 1, and a sub-runner 10 is communicated with the output end of the main runner 9, so that the main runner 9, the sub-runner 10 and the groove in the front mould frame 2 are communicated;
a core shell 701 is arranged on one side of the core fixing plate 3 close to the front mold frame 2, a screw rod 703 parallel to the core fixing plate 3 is rotatably arranged in the core shell 701, a threaded sleeve 704 is sleeved on the screw rod 703 and can reciprocate along the screw rod 703, a side core 707 is arranged on the threaded sleeve 704, one end of the side core 707 is connected with the threaded sleeve 704 through a movable block 705, the other end of the side core 707 extends out of the core shell 701, and small cores 16 are arranged on the core fixing plates 3 on two sides of the core shell 701;
the two sides of the surface of the rear mould base 4, which is back to the core fixing plate 3, are respectively provided with a rear mould base 5, an ejector rod fixing plate 6 which can move back and forth is arranged between the two rear mould base 5, the ejector rod fixing plate 6 is provided with a plurality of ejector rods 18 corresponding to the forming cavity, and the ejector rods 18 can be embedded into the forming cavity; the mold core fixing plate 3 is provided with at least two guide posts 14, the front mold frame 2 is provided with a guide sleeve 13 for embedding the guide posts 14, the guide sleeve 13 can reciprocate along the guide posts 14, the front mold frame 2 is also provided with a cooling runner 15, and the cooling runner 15 is distributed outside the molding cavity.
The front mould frame 2 is fixedly connected with the front mould frame plate 1 through a plurality of groups of screws 12; the input end of the main runner 9 is arranged in the center of the surface of the front mold frame plate 1 opposite to the rear mold frame 4; a positioning ring 8 is arranged at the input end of a main runner 9 on the front mould frame plate 1; a power unit 702 for driving the screw 703 in rotation is fixed to the inner wall of the core shell 701.
Example 2: a processing mould for precision parts comprises a front mould frame 2, a core fixing plate 3 and a rear mould frame 4 which are fixedly arranged on a front mould frame plate 1, wherein the core fixing plate 3 is positioned between the front mould frame 2 and the rear mould frame 4, a groove for embedding a core on the core fixing plate 3 is formed in the front mould frame 2, so that at least one forming cavity is formed between the front mould frame 2 and the core on the core fixing plate 3, an injection molding part 11 is formed in the forming cavity, a through main runner 9 is formed on the front mould frame 2 and the front mould frame plate 1, and a sub-runner 10 is communicated with the output end of the main runner 9, so that the main runner 9, the sub-runner 10 and the groove in the front mould frame 2 are communicated;
a core shell 701 is arranged on one side of the core fixing plate 3 close to the front mold frame 2, a screw rod 703 parallel to the core fixing plate 3 is rotatably arranged in the core shell 701, a threaded sleeve 704 is sleeved on the screw rod 703 and can reciprocate along the screw rod 703, a side core 707 is arranged on the threaded sleeve 704, one end of the side core 707 is connected with the threaded sleeve 704 through a movable block 705, the other end of the side core 707 extends out of the core shell 701, and small cores 16 are arranged on the core fixing plates 3 on two sides of the core shell 701;
the two sides of the surface of the rear mould base 4, which is back to the core fixing plate 3, are respectively provided with a rear mould base 5, an ejector rod fixing plate 6 which can move back and forth is arranged between the two rear mould base 5, the ejector rod fixing plate 6 is provided with a plurality of ejector rods 18 corresponding to the forming cavity, and the ejector rods 18 can be embedded into the forming cavity; the mold core fixing plate 3 is provided with at least two guide posts 14, the front mold frame 2 is provided with a guide sleeve 13 for embedding the guide posts 14, the guide sleeve 13 can reciprocate along the guide posts 14, the front mold frame 2 is also provided with a cooling runner 15, and the cooling runner 15 is distributed outside the molding cavity.
Two ends of the power device 702 are respectively provided with a screw 703; the power device 702 is electrically connected with an external controller and an inductor; one end of the small core 16 is positioned in the core fixing plate 3, and the other end of the small core extends out of the core fixing plate 3; a sliding groove 706 matched with the movable block 705 is arranged in the core shell 701; the core fixing plate 3, the rear mold frame 4 and the rear mold frame seat 5 are fixedly connected through screw rods 17.
During the use, earlier the compound die after, start the power ware again for the screw rod is rotatory, thereby takes the thread bush to move together, thereby makes to move the side core along the spout in to the shaping chamber from the core shell through the movable block, and until the side core is whole to be exposed, and touches the inductor, thereby makes power ware stop motion, later injection moulding again, after waiting to cool off, at first start the power ware and move back the side core in the core shell, later carry out the die sinking again.
When the processing mold of the precision part is adopted, the structure is simple, the operation is convenient, the processing efficiency of the injection molding part with the groove on the side edge is improved, meanwhile, the molding effect of the groove on the side edge of the injection molding part is improved, the formed part is convenient to take out quickly, and the working efficiency is further improved; in addition, the mold closing precision is improved, the processing precision of injection molding pieces is further guaranteed, the product quality is improved, materials can be rapidly cooled and formed, and the processing efficiency and the forming effect are improved.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The utility model provides a mold processing of precision parts which characterized in that: the mold comprises a front mold frame (2), a core fixing plate (3) and a rear mold frame (4), wherein the front mold frame (2), the core fixing plate (3) and the rear mold frame (4) are fixedly arranged on a front mold frame plate (1), a groove for embedding a core on the core fixing plate (3) is formed in the front mold frame (2), so that at least one forming cavity is formed between the front mold frame (2) and the core on the core fixing plate (3), an injection molding part (11) is formed in the forming cavity, a through main runner (9) is formed in the front mold frame (2) and the front mold frame plate (1), and a sub-runner (10) is communicated with the output end of the main runner (9) so as to communicate the main runner (9) and the sub-runner (10) with the groove in the front mold frame (2);
a core shell (701) is arranged on one side, close to the front mold frame (2), of the core fixing plate (3), a screw rod (703) parallel to the core fixing plate (3) is rotatably installed in the core shell (701), a threaded sleeve (704) is sleeved on the screw rod (703) and can reciprocate along the screw rod (703), a side core (707) is installed on the threaded sleeve (704), one end of the side core (707) is connected with the threaded sleeve (704) through a movable block (705), the other end of the side core (707) extends out of the core shell (701), and small cores (16) are arranged on the core fixing plates (3) on two sides of the core shell (701);
two sides of the surface of the rear mould base (4) back to the core fixing plate (3) are respectively provided with a rear mould base (5), a mandril fixing plate (6) capable of moving back and forth is arranged between the two rear mould base (5), the mandril fixing plate (6) is provided with a plurality of mandrils (18) corresponding to the forming cavity, and the mandrils (18) can be embedded into the forming cavity; the mold core fixing plate is characterized in that at least two guide columns (14) are arranged on the mold core fixing plate (3), a guide sleeve (13) for the guide columns (14) to be embedded is arranged on the front mold frame (2), the guide sleeve (13) can reciprocate along the guide columns (14), a cooling runner (15) is further arranged in the front mold frame (2), and the cooling runner (15) is distributed on the outer side of the molding cavity.
2. The processing mold for precision parts according to claim 1, characterized in that: the front mould frame (2) is fixedly connected with the front mould frame plate (1) through a plurality of groups of screws (12).
3. The processing mold for precision parts according to claim 1, characterized in that: the input end of the main runner (9) is arranged in the center of the surface of the front mold frame plate (1) back to the rear mold frame (4).
4. The processing mold for precision parts according to claim 1, characterized in that: a positioning ring (8) is arranged at the input end of the main runner (9) on the front mould frame plate (1).
5. The processing mold for precision parts according to claim 1, characterized in that: a power unit (702) for driving the screw (703) in rotation is fixed to the inner wall of the core shell (701).
6. The processing mold for precision parts according to claim 2, characterized in that: and both ends of the power device (702) are provided with screws (703).
7. The processing mold for precision parts according to claim 2, characterized in that: the power device (702) is electrically connected with the external controller and the sensor.
8. The processing mold for precision parts according to claim 1, characterized in that: one end of the small core (16) is positioned in the core fixing plate (3), and the other end of the small core extends out of the core fixing plate (3).
9. The processing mold for precision parts according to claim 1, characterized in that: the core shell (701) is internally provided with a sliding groove (706) matched with the movable block (705).
10. The processing mold for precision parts according to claim 1, characterized in that: the mold core fixing plate (3), the rear mold frame (4) and the rear mold frame seat (5) are fixedly connected through a screw rod (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010424787.XA CN111791432A (en) | 2020-05-19 | 2020-05-19 | Machining die for precision parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010424787.XA CN111791432A (en) | 2020-05-19 | 2020-05-19 | Machining die for precision parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111791432A true CN111791432A (en) | 2020-10-20 |
Family
ID=72806463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010424787.XA Pending CN111791432A (en) | 2020-05-19 | 2020-05-19 | Machining die for precision parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111791432A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1588823A1 (en) * | 2004-04-22 | 2005-10-26 | August Läpple GmbH & Co. KG | Device for producing injection moulded parts |
| CN103770283A (en) * | 2014-01-16 | 2014-05-07 | 南通大学 | Porous one-time forming mechanism for cylindrical fuel cell positive electrode side |
| CN207465751U (en) * | 2017-09-28 | 2018-06-08 | 昆山特辉塑胶模具有限公司 | A kind of inlet manifold injection mold |
-
2020
- 2020-05-19 CN CN202010424787.XA patent/CN111791432A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1588823A1 (en) * | 2004-04-22 | 2005-10-26 | August Läpple GmbH & Co. KG | Device for producing injection moulded parts |
| CN103770283A (en) * | 2014-01-16 | 2014-05-07 | 南通大学 | Porous one-time forming mechanism for cylindrical fuel cell positive electrode side |
| CN207465751U (en) * | 2017-09-28 | 2018-06-08 | 昆山特辉塑胶模具有限公司 | A kind of inlet manifold injection mold |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201020 |
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| RJ01 | Rejection of invention patent application after publication |