CN111745913A - Embedded plastic steel plate thread side core-pulling injection mold - Google Patents
Embedded plastic steel plate thread side core-pulling injection mold Download PDFInfo
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- CN111745913A CN111745913A CN202010632509.3A CN202010632509A CN111745913A CN 111745913 A CN111745913 A CN 111745913A CN 202010632509 A CN202010632509 A CN 202010632509A CN 111745913 A CN111745913 A CN 111745913A
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- core
- threaded rod
- steel plate
- pulling
- threaded
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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
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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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
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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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
- B29K2705/08—Transition metals
- B29K2705/12—Iron
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to a plastic-embedded steel plate threaded side core-pulling injection mold which comprises a front mold, a rear mold, a front mold core and a rear mold core, wherein the front mold core and the rear mold core jointly enclose a molding cavity, an inclined core-pulling mechanism separated from a product during mold opening is arranged on the side part of the molding cavity, a threaded rod assembly connected with the molding cavity is arranged on the rear mold, the injection mold further comprises a threaded core-pulling driving mechanism driving the threaded rod assembly to rotate so that the threaded rod assembly is separated from the product, and the threaded core-pulling driving mechanism is connected to the side part of the rear mold. According to the invention, the steel plate is embedded and molded, so that the produced product can bear a large pressure or tension test and keep good insulating performance, and has the installation threaded hole of the side part for gluing, and the injection molding cost is low.
Description
Technical Field
The invention relates to an injection mold, in particular to a plastic-embedded steel plate thread side core-pulling injection mold.
Background
For the traditional plastic board, although the good insulation effect can be kept, the requirement of the industry is difficult to meet when the traditional plastic board is tested by bearing pressure or tension.
For example, in the automotive industry, there is a need for a plurality of sheet-type materials that can withstand tensile forces of over 200KG while maintaining good insulation. The plastic board is obviously difficult to meet the requirements.
And the side thread design of the automobile inner part products is gradually increased. In the existing plate manufacturing process, a mold is firstly drawn out of a nut and then opened, a product is taken out, and then the nut is put in the product after the product is put in a steel plate and then the mold is closed.
For the technical structure of the die, the traditional front die core and the traditional rear die core are easy to deform or shift the steel plate due to the size or the burrs of the steel plate when being spliced, so that the thickness of plastic materials on two sides of the steel plate is uneven, and the technical quality of a finished product is influenced.
Secondly, because the traditional core pulling mechanism is not stable enough, the welding planeness of the steel plate and the sleeve is easy to be different, and the problems of non-assembly, non-corresponding size and the like are caused.
Moreover, when advancing gluey, the time often can be because of advancing gluey incomplete filling, lead to the insulating strength of the outside rubber coating part of steel sheet to descend, can appear creepage phenomenon when leading to the product to use, lead to the finished product quality not to pass, or lead to inlaying the steel sheet of moulding the incident appearing after the installation.
Therefore, it is necessary to design a plastic-embedded steel plate thread side core-pulling injection mold to solve the above technical problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the plastic-embedded steel plate thread side core-pulling injection mold, which is used for embedding the steel plate, so that the produced product can bear a large pressure or pulling force test and keep good insulating property, and has a gluing side accessory installation threaded hole.
The technical scheme adopted by the invention is as follows:
inlay injection mold of loosing core of steel sheet screw thread side moulds, including front mould, back mould, preceding mold core and back mold core, preceding mold core can enclose dress molding cavity, its characterized in that jointly with back mold core: an inclined core pulling mechanism capable of being separated from a product when the mold is opened is arranged on the side part of the cavity, a threaded rod assembly connected with the cavity is arranged on the rear mold, and a threaded core pulling driving mechanism capable of driving the threaded rod assembly to rotate and separating the threaded rod assembly from the product is arranged on one side of the rear mold;
preferably, the inclined core pulling mechanism comprises a first inclined core pulling mechanism and a second inclined core pulling mechanism which are respectively arranged on two opposite sides of the cavity, the first inclined core pulling mechanism comprises a first guide component arranged on one side of the front die and a first sliding component arranged on one side of the rear die, the first sliding component is in sliding connection with the first guide component, the second inclined core pulling mechanism comprises a second guide component arranged on one side of the front die and a second sliding component arranged on one side of the rear die, and the second sliding component is in sliding connection with the second guide component.
Preferably, the threaded rod assembly comprises a fixed seat arranged on the upper portion of the rear die, a threaded rod is inserted into the fixed seat and can rotate in the fixed seat, external threads are arranged on the outer wall, close to one side of the cavity, of the threaded rod, an installation plate is arranged on one side of the rear die, an installation seat is arranged on the upper portion of the installation plate, a rotation hole corresponding to the threaded rod is formed in the installation seat, a connection internal thread is arranged in the rotation hole, and a connection external thread meshed with the connection internal thread is arranged on the threaded rod.
Preferably, the thread core pulling driving mechanism comprises a rotating gear arranged on one side of the upper portion of the mounting plate and sleeved on the threaded rod, a first transmission gear meshed with the rotating gear is arranged on one side of the middle of the mounting plate, a transmission shaft is arranged on the first transmission gear, and a driving mechanism capable of driving the transmission shaft to rotate is arranged on the middle of the mounting plate.
Preferably, the driving mechanism comprises a second transmission gear sleeved on the transmission shaft, a rack is meshed on one side of the second transmission gear, and a rack abdicating groove is further formed in the mounting plate and is provided with a driving source capable of driving the rack to move back and forth.
Preferably, the cavity is provided with a plurality of product positioning portions with preset distances, each product positioning portion comprises a first positioning column arranged on the rear mold core and a second positioning column arranged on the front mold core, and the first positioning columns and the second positioning columns can be matched with each other to fix the product.
Preferably, the side part of the product positioning part is provided with a glue inlet.
Preferably, the radius of the glue inlet is R1, the radius of the product positioning part is R2, the central position from the center of the glue inlet to the center of the product positioning part is D, and D-is not less than 5mm and not more than 30 mm.
The invention has the beneficial effects that:
the steel plate is embedded with plastic, so that the produced product can bear a large pressure or tension test and keep good insulating performance, and has a mounting threaded hole of a gluing side accessory;
the product positioning part is arranged, so that the influence of uneven injection thickness on two sides of the steel plate caused by deformation of the steel plate when the die is closed is eliminated, and meanwhile, the effect of reinforcing the strength of the steel plate is achieved, so that the plastic completely covers the part of the steel plate needing to be encapsulated, and the steel plate is not exposed;
and sliding block assemblies are arranged on two sides of the die mounting steel plate, so that the flatness of the steel plate welded with the sleeve is guaranteed.
The glue inlet is reasonable in arrangement, the plastic is completely filled, the insulating strength of the rubber coating part outside the steel plate is improved, the probability of creepage when the product is used is further reduced, and the fault tolerance of the product is improved.
Drawings
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a cross-sectional view of C-C of FIG. 1;
FIG. 5 is a cross-sectional view taken along line D-D of FIG. 1;
FIG. 6 is a schematic perspective view of the present invention;
FIG. 7 is a schematic perspective view of the assembly of the threaded rod assembly and the threaded core pulling driving mechanism according to the present invention;
FIG. 8 is a cross-sectional view of the threaded rod assembly and the threaded core back drive mechanism assembly of the present invention;
FIG. 9 is a schematic perspective view of the mounting plate of FIG. 7 with the mounting plate removed;
FIG. 10 is a schematic view, partially in section, of a top view of the present invention;
fig. 11 is a schematic diagram of relative position structures of the front mold core 3, the rear mold core 4 and the threaded rod assembly 7 of the plastic-embedded steel plate threaded side core-pulling injection mold of the invention.
The reference numbers illustrate: a front mold 1; a rear mold 2; a front mold core 3; a rear mold core 4; a cavity 5; an inclined core-pulling mechanism 6; a first guide assembly 61; a first guide seat 611; a first guide post 612; a first slide assembly 62; a first movable insert 621; a first slide mount 622; a first protective pad 623; a second guide member 63; a second guide seat 631; a second guide post 632; a second slide assembly 64; a second movable insert 641; a second sliding base 642; a second guard pad 643; a threaded rod assembly 7; a fixed base 71; a threaded rod 72; a mounting plate 73; a mounting seat 74; the rotation hole 75; a thread core-pulling driving mechanism 8; a rotating gear 81; a first transmission gear 82; a drive shaft 83; a drive mechanism 84; a second transmission gear 841; a rack 842; a drive source 843; a rack relief slot 844; a product positioning portion 9; a first positioning post 91; a second positioning post 92; and a glue inlet 10.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 10, the plastic-embedded steel plate thread side core-pulling injection mold of the present invention includes a front mold 1, a rear mold 2, a front mold core 3 and a rear mold core 4, wherein the front mold core 3 and the rear mold core 4 can jointly enclose a molding cavity 5, and is characterized in that: an inclined core pulling mechanism 6 capable of being separated from a product when the mold is opened is arranged on the side part of the cavity 5, a threaded rod assembly 7 connected with the cavity 5 is arranged on the rear mold 2, and a thread core pulling driving mechanism 8 capable of driving the threaded rod assembly 7 to rotate and separating the threaded rod assembly 7 from the product is arranged on one side of the rear mold 2; when the device works, a steel plate to be embedded with plastic is clamped in the rear mold core 4, then the threaded rod enters the rear mold core 4 by the threaded core-pulling driving mechanism 8, then the rear mold 2 drives the rear mold core 4 to advance towards the front mold core 3 and the front mold 1 for mold closing, then the threaded core-pulling driving mechanism 8 drives the threaded rod component 7 to rotate and retreat to pull the threaded rod, and the threaded rod component 7 is separated from the threaded part of a product; and finally, the rear mold 2 drives the rear mold core 4 to retreat back to the front mold core 3 and the front mold 1 to open the mold, in the process, the inclined core pulling mechanism 6 realizes the separation of the core pulling action and the product, after the cavity 5 is opened, the product is manually taken out, the whole steel embedding molding manufacturing process is orderly carried out, and the whole injection molding cost is low.
As shown in fig. 2 to 4, in some embodiments, the core-pulling mechanism 6 includes a first core-pulling mechanism and a second core-pulling mechanism respectively disposed at opposite sides of the cavity 5, the first core-pulling mechanism includes a first guide assembly 61 provided at one side of the front mold 1 and a first slide assembly 62 provided at one side of the rear mold 2, the first sliding component 62 is connected with the first guiding component 61 in a sliding way, the second inclined core-pulling mechanism comprises a second guiding component 63 arranged at one side of the front mould 1 and a second sliding component 64 arranged at one side of the rear mould 2, the second sliding assembly 64 is connected with the second guiding assembly 63 in a sliding manner, the first guiding assembly 61 plays a role in guiding the first sliding assembly 62, the first sliding assembly 61 slides along the first guiding assembly 61, the second guiding assembly 63 plays a role in guiding the second sliding assembly 64, and the second sliding assembly 64 slides along the second guiding assembly 63.
In some embodiments, as shown in fig. 3, the first guiding assembly 61 includes a first guiding seat 611 fixedly connected to the lower portion of the front mold 1, and a first guiding column 612 obliquely fixed on the first guiding seat 611, wherein the first guiding column 612 is obliquely arranged so as to enable the first sliding assembly 62 to slide out obliquely.
In some embodiments, as shown in fig. 3, the first sliding assembly 62 includes a first movable insert 621 contacting with a product, a first sliding seat 622 fixedly connected to the first movable insert 621 and driving the first movable insert 621 to slide, a first protection pad 623 is disposed between the first sliding seat 622 and the first guiding seat 611, the first protection pad 623 is connected to the first sliding seat 622, the first movable insert 621 slides on the first guiding column 612 through the first sliding seat 622 to achieve a core pulling effect, so that the flatness of the welded steel plate and the welded sleeve is better, and the assembly problem is prevented, the shape and number of the first movable insert 621 may be designed according to the shape of the product, the first protection pad 623 mainly functions to reduce friction loss between the first sliding seat 622 and the first guiding seat 611, and by providing the first protection pad 623, maintenance costs are also relatively low.
In some embodiments, as shown in fig. 4, the second guide assembly 63 includes a second guide seat 631 fixedly connected to a lower portion of the front mold 1 and a second guide post 632 obliquely fixed to the second guide seat 631.
In some embodiments, as shown in fig. 4, the second sliding assembly 64 includes a second movable insert 641 contacting with the product, and a second sliding seat 642 fixedly connected to the second movable insert 641 and driving the second movable insert 641 to slide, a second shielding cushion 643 is disposed between the second sliding seat 642 and the second guiding seat 631, the second shielding cushion 643 is connected to the second sliding seat 642, the second movable insert 641 slides away from the product on the second guiding column 632 through the second sliding seat 642 to achieve a core pulling effect, so that the flatness of the welded steel plate and the welded sleeve is better, and the assembly problem is prevented, the shape and number of the second movable insert 641 can be designed according to the specific shape of the product, and the function of the second shielding cushion 643 is the same as the principle of the first shielding cushion 623.
As shown in fig. 6 to 8, the screw rod assembly 7 includes a fixing seat 71 arranged on the upper portion of the rear mold 2, a threaded rod 72 is inserted on the fixing seat 71, the threaded rod 72 can rotate in the fixing seat 71, an external thread is arranged on the outer wall of one side of the cavity 5, which is close to the threaded rod 72, a mounting plate 73 is arranged on one side of the rear mold 2, a mounting seat 74 is arranged on the upper portion of the mounting plate 73, a rotating hole 75 corresponding to the threaded rod 72 is arranged on the mounting seat 74, a connecting internal thread is arranged in the rotating hole 75, a connecting external thread meshed with the connecting internal thread is arranged on the threaded rod 72, and the threaded rod 72 is connected with the mounting seat 74 through a thread, so that the screw rod assembly has good.
As shown in fig. 8, the screw core pulling driving mechanism 8 includes a rotating gear 81 disposed on one side of the upper portion of the mounting plate 73 and sleeved on the threaded rod 72, a first transmission gear 82 meshed with the rotating gear 81 and driven is disposed on one side of the middle portion of the mounting plate 73, a transmission shaft 83 is disposed on the first transmission gear 82, and a driving mechanism 84 capable of driving the transmission shaft 83 to rotate is disposed on the middle portion of the mounting plate.
As shown in fig. 7 and 9, the driving mechanism 84 includes a second transmission gear 841 sleeved on the transmission shaft 83, a rack 842 is engaged with one side of the second transmission gear 841, a driving source 843 capable of driving the rack 842 to move back and forth is arranged on the mounting plate, a rack abdicating groove 844 is further arranged on the mounting plate 73, the rack abdicating groove 844 penetrates through the mounting plate 73, the rack 842 is convenient to move, the interference between the rack 842 and the mounting plate 73 is eliminated, and the space position is further reasonably utilized, so that the structure of the present invention is more compact.
In the invention, as shown in fig. 5, a plurality of product positioning portions 9 with preset distances are arranged on the cavity 5, each product positioning portion 9 comprises a first positioning column 91 arranged on the rear mold core 4 and a second positioning column 92 arranged on the front mold core 3, the first positioning column 91 and the second positioning column 92 can be matched with each other to fix a product, one end of the first positioning column 91 close to the front mold core 3 is positioned on a steel plate positioning hole of a steel plate, one end of the second positioning column 92 close to the rear mold core 4 is sleeved on the end part of the first positioning column 91 and matched with the steel plate on the cavity 5 to fix the steel plate, so that the influence of uneven injection thickness at two sides of an injection steel plate caused by deformation of the steel plate when the mold is closed is eliminated, and meanwhile, the effect of strengthening the strength of the steel plate is achieved, plastic completely covers the part of the steel plate needing to.
As shown in fig. 5, a glue inlet 10 is provided at a side portion of the product positioning portion 9. The glue inlet 10 is reasonably arranged, and the plastic is completely filled.
As shown in fig. 10, the radius of the glue inlet 10 is R1, the radius of the product positioning portion 9 is R2, and the central position from the center of the glue inlet 10 to the center of the product positioning portion 9 is D, wherein D-is not less than 5mm and not more than 30mm, and as a result of multiple tests, the D-is within the above range, the plastic inside the cavity 5 is completely filled, and the insulation strength of the encapsulated portion outside the steel plate is improved.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. Inlay injection mold of loosing core of steel sheet screw thread side moulds (3) and back mold core (4) including front mould (1), back mould (2), preceding mold core (3) and back mold core (4) can enclose dress molding cavity (5), its characterized in that jointly: the side part of the die cavity (5) is provided with an inclined core pulling mechanism (6) capable of being separated from a product when the die is opened, the rear die (2) is provided with a threaded rod assembly (7) connected with the die cavity (5), and one side of the rear die (2) is provided with a threaded core pulling driving mechanism (8) capable of driving the threaded rod assembly (7) to rotate and separating the threaded rod assembly (7) from the product.
2. The plastic-embedded steel plate threaded side core-pulling injection mold according to claim 1, characterized in that: oblique mechanism of loosing core (6) is including locating the first mechanism of loosing core and the second mechanism of loosing core to one side of the relative both sides of die cavity (5) respectively to one side, first mechanism of loosing core to one side is including setting up first direction subassembly (61) in front mould (1) one side and setting up first slip subassembly (62) in back mould (2) one side, first slip subassembly (62) and first direction subassembly (61) sliding connection, the second mechanism of loosing core to one side is including setting up second direction subassembly (63) in front mould (1) one side and setting up second slip subassembly (64) in back mould (2) one side, second slip subassembly (64) and second direction subassembly (63) sliding connection.
3. The plastic-embedded steel plate threaded side core-pulling injection mold according to claim 1, characterized in that: threaded rod subassembly (7) are including setting up fixing base (71) on back mould (2) upper portion insert threaded rod (72) on fixing base (71), threaded rod (72) can be at fixing base (71) internal rotation be equipped with the external screw thread on threaded rod (72) the outer wall that is close to die cavity (5) one side be equipped with mounting panel (73) back mould (2) one side, mounting panel (73) upper portion is equipped with mount pad (74), be equipped with rotation hole (75) that correspond with threaded rod (72) on mount pad (74), be equipped with the connection internal thread in rotation hole (75), be equipped with on threaded rod (72) and be connected the external screw thread of being connected female thread meshing.
4. The plastic-embedded steel plate threaded side core-pulling injection mold according to claim 3, characterized in that: screw thread actuating mechanism (8) of loosing core is including setting up at mounting panel (73) upper portion one side and overlapping rotating gear (81) on locating threaded rod (72) mounting panel (73) middle part one side is equipped with and meshes driven first drive gear (82) with rotating gear (81) be equipped with transmission shaft (83) on first drive gear (82) be equipped with on the mounting panel middle part and drive transmission shaft (83) pivoted actuating mechanism (84).
5. The plastic-embedded steel plate threaded side core-pulling injection mold according to claim 4, characterized in that: actuating mechanism (84) establish second drive gear (841) on transmission shaft (83) including the cover second drive gear (841) one side meshing is equipped with rack (842) be equipped with driving source (843) that can drive rack (842) round trip movement on the mounting panel and still be equipped with rack groove of stepping down (844) on mounting panel (73).
6. The plastic-embedded steel plate threaded side core-pulling injection mold according to claim 1, characterized in that: be equipped with product location portion (9) of a plurality of default distances on die cavity (5), product location portion (9) are including setting up first reference column (91) on rear mold core (4) and setting up second reference column (92) on front mold core (3), first reference column (91) can mutually support with second reference column (92) and fix the product.
7. The plastic-embedded steel plate threaded side core-pulling injection mold according to claim 6, characterized in that: and a glue inlet (10) is arranged at the side part of the product positioning part (9).
8. The plastic-embedded steel plate threaded side core-pulling injection mold according to claim 7, characterized in that: the radius of the glue inlet (10) is R1, the radius of the product positioning part (9) is R2, the central position of the glue inlet (10) to the central position of the product positioning part (9) is D, and D- (R1+ R2) is not less than 5mm and not more than 30 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010632509.3A CN111745913A (en) | 2020-07-03 | 2020-07-03 | Embedded plastic steel plate thread side core-pulling injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010632509.3A CN111745913A (en) | 2020-07-03 | 2020-07-03 | Embedded plastic steel plate thread side core-pulling injection mold |
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|---|---|
| CN111745913A true CN111745913A (en) | 2020-10-09 |
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|---|---|---|---|
| CN202010632509.3A Pending CN111745913A (en) | 2020-07-03 | 2020-07-03 | Embedded plastic steel plate thread side core-pulling injection mold |
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