CN114603792A - Double-rotation type core-pulling structure - Google Patents
Double-rotation type core-pulling structure Download PDFInfo
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- CN114603792A CN114603792A CN202011599328.1A CN202011599328A CN114603792A CN 114603792 A CN114603792 A CN 114603792A CN 202011599328 A CN202011599328 A CN 202011599328A CN 114603792 A CN114603792 A CN 114603792A
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- 230000000452 restraining effect Effects 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- 230000001680 brushing effect Effects 0.000 abstract description 7
- 239000011148 porous material Substances 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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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
- B29C45/33—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
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/42—Brushes
- B29L2031/425—Toothbrush
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Brushes (AREA)
Abstract
A double-rotation type core-pulling structure. The invention relates to a plastic mold, in particular to a drawing and brushing needle structure for forming pores in a toothbrush molding mold. The double-rotation core pulling structure is exquisite in design, compact in structure and capable of achieving core pulling layout of annular inclined holes rotating around the same circle center and different in diameter. The brush needle fixing assembly is provided with the bearing, the bearing is installed and fixed in the bearing fixing seat, the brush needle is fixed in the bearing through the brush needle fixing seat, the guide needle is arranged on the periphery of the brush needle on the brush needle fixing seat, when the device is separated from a product up and down in a die, a transverse acting force tangential to the circumference can be generated when the device moves downwards, the acting force is transmitted to the brush needle fixing seat through the guide needle and rotates under the assistance of the bearing, and finally the purpose of rotatably pulling the core of the brush needle around the same circle center is achieved. The core-pulling device can effectively and reliably pull the brush needles which are arranged in a rotating and inclined mode and have different diameters, and the final forming quality of products is not affected.
Description
Technical Field
The invention relates to a plastic mold, in particular to a drawing and brushing needle structure for forming pores in a toothbrush molding mold.
Background
Most toothbrush processing enterprises in the industry need one-step forming to leave the pore of planting corresponding to brush head department in its mould when processing the toothbrush at present, and the pore of planting needs to come the shaping through the brush needle, need set up correspondingly among the general mould structure and take out the brush needle structure. The national intellectual property office is published in 8.8.2012, entitled "a toothbrush mold drawing and brushing needle device", and publication number: the patent of CN102626967A discloses that the product can be separated from the upper mold smoothly by the twice parting realized by the needle brushing motion device, and after a certain time (i.e. the time of the once parting) is delayed, the needle is separated from the product in the twice parting process, and finally the product is ejected by the discharging push rod.
With the increasing updating of electric toothbrushes, in pursuit of better tooth cleaning effects, the bristle layout of electric toothbrush heads is also continuously updated, so that a rotary bristle structure (as shown in fig. 15) appears, the bristle holes are obliquely arranged on circumferences of different diameters, the brush holes on the circumference of the same diameter are inclined in a uniform direction (forward rotation or reverse rotation), the brush needles are arranged along the same direction along a cluster according to a conventional brush needle structure (as shown in fig. 16), generally, core pulling of four slopes in the up, down, left and right directions in a plane can be realized, but core pulling of the inclined holes rotating around the same circle center is difficult to realize, and the structure is complex, the cost is too high and the stability is low if the core pulling structure is arranged through the conventional structure.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the double-rotation type core pulling structure which is exquisite in design, compact in structure and capable of realizing the core pulling layout of the annular inclined holes rotating around the same circle center and different in diameter.
The technical scheme of the invention is as follows: comprises an upper layer brush needle fixing component and a lower layer brush needle fixing component which are arranged up and down,
the upper layer brush needle fixing assembly comprises an upper layer bearing fixing seat, an upper layer bearing, an upper layer brush needle fixing seat and an upper layer brush needle bottom plate, the upper layer bearing fixing seat is provided with a stepped upper layer middle hole with a large upper part and a small lower part, the upper layer bearing is arranged at the upper part of the upper layer middle hole, and a cover plate is arranged on the upper part of the upper layer bearing on the upper layer bearing fixing seat;
the upper layer brush needle fixing seat is connected with the inner ring of the upper layer bearing,
the upper layer brush needle fixing seat is connected with the upper layer brush needle bottom plate and is respectively positioned at the lower part of the upper layer mesopore,
the upper layer brush needle fixing seat is movably provided with a circle of upper layer brush needles and a pair of upper layer guide needles which have the same rotation direction, the rotation direction of the upper layer brush needles is the same as that of the upper layer guide needles, and the upper layer brush needles and the upper layer guide needles extend out of the cover plate;
the lower layer brush needle fixing assembly comprises a lower layer bearing fixing seat, a lower layer bearing, a lower layer brush needle fixing seat and a lower layer brush needle bottom plate, the lower layer bearing fixing seat is provided with a stepped lower layer middle hole with a large upper part and a small lower part, the lower layer bearing is arranged at the upper part of the lower layer middle hole, a connecting plate is arranged on the lower layer bearing fixing seat and positioned at the upper part of the lower layer bearing, and the upper layer brush needle fixing assembly is arranged on the connecting plate;
the lower layer brush needle fixing seat is connected with the inner ring of the lower layer bearing,
the lower layer brush needle fixing seat is connected with the lower layer brush needle bottom plate and is respectively positioned at the lower part of the lower layer mesopore,
the lower layer brush needle fixing seat is movably provided with a circle of lower layer brush needles and a pair of lower layer guide needles, wherein the rotating directions of the lower layer brush needles and the guide needles are opposite to those of the upper layer brush needles and the guide needles;
the bottom of the lower layer brush needle fixing component is provided with a base, a plurality of vertical brush needles are fixedly arranged at the center of the base, and the plurality of vertical brush needles extend out of the cover plate.
The upper layer brush needle fixing seat and the lower layer brush needle fixing seat are provided with two layers of steps which are small in upper part and large in lower part, the upper layer steps of the upper layer brush needle fixing seat and the lower layer brush needle fixing seat extend into the upper layer bearing inner ring and the lower layer bearing inner ring, the extending sections of the upper layer bearing inner ring and the lower layer bearing inner ring are arranged on the lower layer step surface, the bottom of the upper layer brush needle fixing seat and the bottom of the lower layer brush needle fixing seat are connected with an upper layer brush needle bottom plate and a lower layer brush needle bottom plate through connecting screws, and the lower layer steps of the upper layer brush needle fixing seat and the lower layer brush needle bottom plate and the upper layer brush needle bottom plate and the lower layer brush needle bottom plate are arranged in lower step holes of the upper layer middle holes and the lower layer middle holes;
the upper layer brush needle fixing seat and the lower layer brush needle fixing seat are connected in a penetrating mode, a first stepped hole which is small in size and large in size is formed in the middle of the upper layer brush needle fixing seat and the lower layer brush needle fixing seat, a circle of brush needle limiting holes which are the same in rotating direction are formed in the upper layer step face of the upper layer brush needle fixing seat and the lower layer step hole top edge of the first stepped hole and are close to the periphery of the upper layer step hole edge of the first stepped hole, and the brush needle limiting holes are connected with the upper layer step face of the upper layer brush needle fixing seat and the lower layer step hole top edge of the first stepped hole in a penetrating mode.
And a pair of stepped holes II which are small at the top and large at the bottom are arranged at the peripheries of the brush needle restraining holes in the upper and lower layer brush needle fixing seats, the stepped holes II penetrate through the top surface and the bottom surface of the upper and lower layer brush needle fixing seats, the lower stepped holes of the stepped holes II are arranged at the peripheries of the bottom openings of the lower stepped holes of the stepped holes, and the stepped holes II are guide needle restraining holes.
And guide needle transition holes are also formed in the spacing positions of the guide needle limiting holes in the upper layer brush needle fixing seat.
The bottoms of the upper layer brush needle, the lower layer brush needle and the guide needle are respectively provided with ends with diameters larger than the diameters of the brush needle restraining hole and the stepped hole, and the surfaces of the ends corresponding to the upper layer brush needle bottom plate and the lower layer brush needle bottom plate are arc surfaces.
The heights of the upper layer brush needle and the lower layer brush needle extending out of the cover plate are consistent.
Gaps are reserved between the stepped holes at the lower parts of the middle holes of the upper layer and the lower layer and between the brush needle fixing seats of the upper layer and the lower layer and the side walls of the brush needle bottom plates.
The core-pulling device adopts a double-layer brush needle fixing component, the upper and lower layer brush needles of the double-layer brush needle fixing component are respectively arranged in an inclined annular mode in a forward rotation mode and a reverse rotation mode, the upper and lower brush needles extend out of the core-pulling device, the brush needles vertically extend out of the middle of a base of the core-pulling device, when all the brush needles extend out of the core-pulling device, the extending section takes the base brush needle as the center, the lower layer brush needle and the upper layer brush needle sequentially surround a core-pulling model arranged on the periphery of the center, and the core-pulling model extends into a product to be processed to shape a toothbrush head planting hole, so that two layers of inclined holes rotating around the same circle center with different diameters are demoulded, and the layout of the annular inclined holes is more flexible.
The invention adopts a bearing on a brush needle fixing component, the bearing is installed and fixed in a bearing fixing seat, a brush needle is fixed in the bearing through the brush needle fixing seat, and a guide needle is arranged on the periphery of the brush needle on the brush needle fixing seat.
The core-pulling device can effectively and reliably pull the brush needles which are arranged in a rotating and inclined mode and have different diameters, and the final forming quality of products is not affected.
Drawings
Figure 1 is a schematic view of the structure of the present invention,
figure 2 is a top view of figure 1,
figure 3 is a cross-sectional view taken along line a-a of figure 2,
figure 4 is a schematic view of an exploded structure of the present invention,
FIG. 5 is a first schematic structural view of the upper brushing needle holder according to the present invention,
figure 6 is a top view of figure 5,
figure 7 is a cross-sectional view taken along line B-B of figure 6,
FIG. 8 is a second schematic structural view of the upper brushing needle holder of the present invention,
figure 9 is a top view of figure 8,
figure 10 is a schematic view of the arrangement of the extraction needles of the present invention,
figure 11 is a schematic structural view of the upper layer of the drawing needle in a fixed state,
figure 12 is a top view of figure 11,
figure 13 is a cross-sectional view taken along line C-C of figure 12,
figure 14 is a schematic view of the construction of the present invention with the drawing needle attached to the needle base,
figure 15 is a schematic diagram of the structure of the product produced by the present invention,
fig. 16 is a schematic structural view of the background art.
In the figure, 1-an upper layer brush needle fixing component, 2-a lower layer brush needle fixing component, 3-a brush needle, 4-a guide needle, 5-a cover plate, 6-a connecting plate, 7-a base, 8-a bearing fixing seat, 81-a middle hole, 9-a bearing, 10-a brush needle fixing seat, 101-a first stepped hole, 1011-a lower stepped hole of the stepped hole, 102-a brush needle restraining hole, 103-a second stepped hole, 1031-a lower stepped hole of the second stepped hole, 104-a guide needle transition hole and 11-a brush needle bottom plate.
Detailed Description
The invention is further described below with reference to fig. 1-15, comprising an upper layer brush needle fixing component 1 and a lower layer brush needle fixing component 2 which are arranged up and down,
the upper layer brush needle fixing assembly 1 comprises an upper layer bearing fixing seat 8, an upper layer bearing 9, an upper layer brush needle fixing seat 10 and an upper layer brush needle bottom plate, wherein the upper layer bearing fixing seat 8 is provided with a stepped upper layer middle hole 81 with a large upper part and a small lower part, the upper layer bearing 9 is arranged at the upper part of the upper layer middle hole 81, and a cover plate 5 is arranged on the upper part of the upper layer bearing 9 on the upper layer bearing fixing seat 8;
the upper layer brush needle fixing seat 10 is connected with the inner ring of the upper layer bearing 9,
the upper layer brush needle fixing seat 10 is connected with the upper layer brush needle bottom plate 11 and is respectively positioned at the lower part of the upper layer middle hole 81,
the upper brush needle fixing seat 10 is movably provided with a circle of upper brush needles 3 and a pair of upper guide needles 4 which rotate in the same direction (rotate in a positive direction), the upper brush needles 3 and the upper guide needles 4 rotate in the same direction (the inclination angles of the brush needles 3 and the guide needles 4 on the same radius around the same circle center are the same), and the upper brush needles 3 and the upper guide needles 4 extend out of the cover plate 5.
The lower layer brush needle fixing component 2 comprises a lower layer bearing fixing seat 8, a lower layer bearing 9, a lower layer brush needle fixing seat 10 and a lower layer brush needle bottom plate 11, wherein the lower layer bearing fixing seat 8 is provided with a stepped lower layer middle hole 81 with a large upper part and a small lower part, the lower layer bearing 9 is arranged at the upper part of the lower layer middle hole 81, a connecting plate 6 is arranged on the lower layer bearing fixing seat 8 and positioned at the upper part of the lower layer bearing 9, and the upper layer brush needle fixing component 1 is arranged on the connecting plate 6; the connecting plate 6 is also provided with a through hole for passing through the lower layer brush needle 3.
The lower layer brush needle fixing seat 10 is connected with the inner ring of the lower layer bearing 9,
the lower layer brush needle fixing seat 10 is connected with the lower layer brush needle bottom plate 11 and is respectively positioned at the lower part of the lower layer middle hole 8,
the lower floor brushes the needle fixing base 10 and goes up the activity and is equipped with the round and brushes needle 3 with upper strata, the direction needle 4 revolves to lower floor's brush needle 3 and a pair of lower floor's direction needle 4 opposite (the anti-rotation) of direction, and lower floor brushes needle 3 and lower floor's direction needle 4 and revolves to the same (around the same centre of a circle brush needle 3 on the same radius with the inclination that direction needle 4 set up the same), and lower floor brushes needle 3 and lower floor's direction needle 4 and stretches out apron 5.
The bottom of the lower layer brush needle fixing component 2 is provided with a base 7, the center of the base 7 is fixedly provided with a plurality of vertical brush needles 3, and the cover plate 5 extends out of the plurality of vertical brush needles 3.
The brush needle fixing seat 10 is fixedly connected with a brush needle bottom plate 11 at the bottom, the brush needle fixing seat 10 is fixedly connected with an inner ring of the bearing 9, and the brush needle bottom plate 11 and the brush needle fixing seat 10 can rotate on the bearing 9 together. The rotating directions and the slopes of the brush needles 3 and the guide needles 4 on the upper layer and the lower layer are the same so as to ensure that the brush needles and the guide needles are synchronous and do not interfere with each other when rotating, and the rotating directions of the brush needles 3 and the guide needles 4 on the upper layer and the lower layer are opposite to each other so as not to interfere with the rotation of the brush needle fixing seats 10 on each layer.
The brush needle bottom plate 11 is provided with a through hole for brushing the needle 3 through the bottom layer, and the bottom end of the brush needle 3 is propped against the brush needle bottom plate 11.
The brush needles 3 extend out of the cover plate 5 section together to form the toothbrush head core-pulling model.
The upper layer brush needle fixing seat 10 and the lower layer brush needle fixing seat 10 are provided with two layers of steps which are small at the top and big at the bottom, the upper layer steps of the upper layer brush needle fixing seat 10 and the lower layer brush needle fixing seat 10 extend into the inner rings of the upper layer bearing 9 and the lower layer bearing 9, the extending sections of the inner rings of the upper layer bearing 9 and the lower layer bearing 9 are arranged on the surface of the lower layer steps, the bottom of the upper layer brush needle fixing seat 10 and the bottom of the lower layer brush needle fixing seat 10 are connected with an upper layer brush needle bottom plate 11 and a lower layer brush needle bottom plate 11 through connecting screws, and the lower layer steps of the upper layer brush needle fixing seat 10 and the upper layer brush needle bottom plate and the lower layer brush needle bottom plate are arranged in lower step holes of the upper layer mesopores 81 and the lower layer mesopores 81;
a through stepped hole I101 with a small upper part and a large lower part is arranged between the upper layer brush needle fixing seat 10 and the lower layer brush needle fixing seat 10, a circle of brush needle limiting holes 102 with the same rotation direction are arranged on the upper layer stepped surface of the upper layer brush needle fixing seat 10 and the lower layer brush needle fixing seat 10, which are close to the periphery of the upper layer stepped hole edge of the stepped hole I101, and the brush needle limiting holes 102 penetrate through the upper layer stepped surface of the upper layer brush needle fixing seat 10 and the lower layer stepped hole top edge of the stepped hole I101.
A pair of stepped holes 103 with small top and large bottom is arranged at the periphery of the brush needle restraining holes 102 on the upper layer brush needle fixing seat 10 and the lower layer brush needle fixing seat 10, the stepped holes 103 penetrate through the top surface and the bottom surface of the upper layer brush needle fixing seat 10 and the lower layer brush needle fixing seat 10, lower stepped holes of the stepped holes 103 are arranged at the periphery of bottom openings of the lower stepped holes of the first stepped holes 101, and the second stepped holes 103 are guiding needle restraining holes.
The axial cross section of the upper step hole of the first step hole 101 is trapezoidal in order to meet the requirement that the layer brush needle limiting hole 102 is obliquely and rotatably arranged towards the circle center, the lower step hole 1011 is arranged at the lower part of the first step hole 101 and is a circular hole with the same upper and lower diameter, and the bottom layer brush needle 3 passes through the hole of the first step hole 101. The lower part of the second stepped hole 103 is provided with a second stepped hole 1031, and the diameter of the second stepped hole 1031 is larger than that of the upper stepped hole of the second stepped hole 103.
And guide needle transition holes 104 are also arranged at the intervals of the guide needle restriction holes on the upper layer brush needle fixing seat 10. The guide needle transition hole 104 is arranged for penetrating the lower layer guide needle 4.
The bottoms of the upper and lower layers of brush needles 3 and the guide needles 4 are respectively provided with ends with diameters larger than the brush needle restriction holes 102 and the second and lower step holes 1031 of the step holes, and the surfaces of the respective ends corresponding to the upper and lower layers of brush needle bottom plates 11 are arc surfaces.
The main body part of the brush needle 3 is in sliding fit with the brush needle restriction hole 102 and is embedded into the brush needle restriction hole 102, the bottom end of the brush needle 3 is arranged in a lower step hole 1011 of the stepped hole, the main body part of the guide needle 4 is in sliding fit with an upper step hole of the second stepped hole 103 and is embedded into an upper step hole of the second stepped hole 103, and the bottom end of the guide needle 4 is arranged in a lower step hole 1031 of the second stepped hole, so that the brush needle 3 and the guide needle 4 are restrained from being pulled out during core pulling.
The heights of the upper layer brush needle 3 and the lower layer brush needle 3 extending out of the cover plate are consistent. The arrangement is to ensure the integral uniformity during core pulling.
Gaps are reserved between the lower step holes of the upper and lower layer middle holes 81 and the side walls of the upper and lower layer brush needle fixing seats 10 and the brush needle bottom plates 11. The arrangement is such that the rotation of the brush needle fixing seat 10 and the brush needle bottom plate 11 is not interfered.
The double-rotation type core-pulling structure adopts a mode of fixing the brush needles 3 in different rotation directions of the upper layer and the lower layer, the brush needles 3 are fixed in the bearings 9 through the brush needle fixing seats 10 and can rotate, in the secondary parting action process of a toothbrush mold, the brush needle fixing seats 10 are counteracted by the circumferential tangential transverse force generated by the separation of the guide needles 4 obliquely arranged on the brush needle fixing seats 10 and the upper mold of the toothbrush mold, the brush needles 3 on the upper layer and the lower layer of the brush needle fixing seats 10 rotate along with the rotation, the rotation directions of the upper layer and the lower layer are different and do not interfere with each other, and finally, the process that the brush needles 3 rotate while being downwards pulled out from a product is formed.
The structure of the invention can effectively and simultaneously loose the core of the brush needles which are arranged in a rotating and inclined way at different diameters, and finally form a product structure which is shown in figure 15 and is provided with toothbrush head planting holes in a forward and reverse rotating way around the same circle center and at different diameters.
The present invention is not limited to the above-mentioned embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some technical features without creative efforts according to the disclosed technical contents, and these substitutions and modifications are all within the protection scope of the present invention.
Claims (7)
1. A double-rotation core-pulling structure is characterized by comprising an upper layer brush needle fixing component and a lower layer brush needle fixing component which are arranged up and down,
the upper layer brush needle fixing assembly comprises an upper layer bearing fixing seat, an upper layer bearing, an upper layer brush needle fixing seat and an upper layer brush needle bottom plate, the upper layer bearing fixing seat is provided with a stepped upper layer middle hole with a large upper part and a small lower part, the upper layer bearing is arranged at the upper part of the upper layer middle hole, and a cover plate is arranged on the upper part of the upper layer bearing on the upper layer bearing fixing seat;
the upper layer brush needle fixing seat is connected with the inner ring of the upper layer bearing,
the upper layer brush needle fixing seat is connected with the upper layer brush needle bottom plate and is respectively positioned at the lower part of the upper layer mesopore,
the upper layer brush needle fixing seat is movably provided with a circle of upper layer brush needles and a pair of upper layer guide needles which have the same rotation direction, the rotation direction of the upper layer brush needles is the same as that of the upper layer guide needles, and the upper layer brush needles and the upper layer guide needles extend out of the cover plate;
the lower layer brush needle fixing assembly comprises a lower layer bearing fixing seat, a lower layer bearing, a lower layer brush needle fixing seat and a lower layer brush needle bottom plate, the lower layer bearing fixing seat is provided with a stepped lower layer middle hole with a large upper part and a small lower part, the lower layer bearing is arranged at the upper part of the lower layer middle hole, a connecting plate is arranged on the lower layer bearing fixing seat and positioned at the upper part of the lower layer bearing, and the upper layer brush needle fixing assembly is arranged on the connecting plate;
the lower layer brush needle fixing seat is connected with the inner ring of the lower layer bearing,
the lower layer brush needle fixing seat is connected with the lower layer brush needle bottom plate and is respectively positioned at the lower part of the lower layer mesopore,
the lower layer brush needle fixing seat is movably provided with a circle of lower layer brush needles and a pair of lower layer guide needles, wherein the rotating directions of the lower layer brush needles and the guide needles are opposite to those of the upper layer brush needles and the guide needles;
the bottom of the lower layer brush needle fixing component is provided with a base, a plurality of vertical brush needles are fixedly arranged at the center of the base, and the plurality of vertical brush needles extend out of the cover plate.
2. The double-rotation core pulling structure according to claim 1, wherein the upper and lower layer brush needle holders are provided with two layers of steps with a small upper part and a large lower part, the upper layer steps of the upper and lower layer brush needle holders extend into the upper and lower layer bearing inner rings, the extending sections of the upper and lower layer bearing inner rings are arranged on the lower layer step surface, the bottoms of the upper and lower layer brush needle holders are connected with upper and lower layer brush needle bottom plates through connecting screws, and the lower layer steps of the upper and lower layer brush needle holders and the upper and lower layer brush needle bottom plates are arranged in lower step holes of the upper and lower layer middle holes;
the upper layer brush needle fixing seat and the lower layer brush needle fixing seat are connected in a penetrating mode, a first stepped hole which is small in size and large in size is formed in the middle of the upper layer brush needle fixing seat and the lower layer brush needle fixing seat, a circle of brush needle limiting holes which are the same in rotating direction are formed in the upper layer step face of the upper layer brush needle fixing seat and the lower layer step hole top edge of the first stepped hole and are close to the periphery of the upper layer step hole edge of the first stepped hole, and the brush needle limiting holes are connected with the upper layer step face of the upper layer brush needle fixing seat and the lower layer step hole top edge of the first stepped hole in a penetrating mode.
3. The double-rotation type core pulling structure according to claim 2, wherein a pair of second stepped holes with small top and large bottom are arranged at the peripheries of the brush needle restraining holes in the upper and lower layer brush needle fixing seats, the second stepped holes penetrate through the top surfaces and the bottom surfaces of the upper and lower layer brush needle fixing seats, the lower stepped holes of the second stepped holes are arranged at the peripheries of bottom openings of the lower stepped holes of the stepped holes, and the second stepped holes are guide needle restraining holes.
4. The double-rotation type core pulling structure according to claim 1 or 3, wherein guide needle transition holes are further formed at intervals of the guide needle restraining holes in the upper layer brush needle fixing seat.
5. The double-rotation core pulling structure according to any one of claims 1 to 3, wherein the bottoms of the upper and lower layer brush needles and the guide needle are respectively provided with an end socket with a diameter larger than that of the two lower step holes of the brush needle restraining hole and the step hole, and the surfaces of the end socket corresponding to the bottom plates of the upper and lower layer brush needles are arc surfaces.
6. The core pulling structure of claim 1, wherein the upper and lower brush pins extend out of the cover plate to the same height.
7. The core pulling structure of claim 1, wherein a gap is formed between the stepped hole at the lower part of the middle holes of the upper and lower layers and the side walls of the brush needle fixing seats and the brush needle bottom plates of the upper and lower layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011599328.1A CN114603792B (en) | 2020-12-29 | 2020-12-29 | Double-rotation type core pulling structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011599328.1A CN114603792B (en) | 2020-12-29 | 2020-12-29 | Double-rotation type core pulling structure |
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| CN114603792A true CN114603792A (en) | 2022-06-10 |
| CN114603792B CN114603792B (en) | 2023-12-19 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2172705Y (en) * | 1993-01-15 | 1994-07-27 | 伍福泉 | Injection mould of steel ball holder |
| CN102626967A (en) * | 2012-04-26 | 2012-08-08 | 扬州恒生精密模具有限公司 | Brushing needle drawing device for toothbrush mould |
| CN102632569A (en) * | 2012-04-26 | 2012-08-15 | 扬州恒生精密模具有限公司 | Combined core-pulling device of plastic mould of arc hollow product |
| CN104254435A (en) * | 2012-04-27 | 2014-12-31 | Gb保捷利公众有限公司 | Bristle carrier injection moulding tool and method for producing brushes |
| CN105479682A (en) * | 2016-01-20 | 2016-04-13 | 东莞市罗曼罗兰电器科技有限公司 | Mold for toothbrush with inclined bristles |
| KR102000697B1 (en) * | 2018-01-12 | 2019-07-16 | 에이테크솔루션(주) | Mould for impeller having multi rotational structure |
| CN110385837A (en) * | 2018-04-20 | 2019-10-29 | 宁波方太厨具有限公司 | A kind of rotary core pulling die structure |
| JP2020055021A (en) * | 2018-10-03 | 2020-04-09 | 株式会社 旭 | Molding device and method for producing molded product |
-
2020
- 2020-12-29 CN CN202011599328.1A patent/CN114603792B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2172705Y (en) * | 1993-01-15 | 1994-07-27 | 伍福泉 | Injection mould of steel ball holder |
| CN102626967A (en) * | 2012-04-26 | 2012-08-08 | 扬州恒生精密模具有限公司 | Brushing needle drawing device for toothbrush mould |
| CN102632569A (en) * | 2012-04-26 | 2012-08-15 | 扬州恒生精密模具有限公司 | Combined core-pulling device of plastic mould of arc hollow product |
| CN104254435A (en) * | 2012-04-27 | 2014-12-31 | Gb保捷利公众有限公司 | Bristle carrier injection moulding tool and method for producing brushes |
| CN105479682A (en) * | 2016-01-20 | 2016-04-13 | 东莞市罗曼罗兰电器科技有限公司 | Mold for toothbrush with inclined bristles |
| KR102000697B1 (en) * | 2018-01-12 | 2019-07-16 | 에이테크솔루션(주) | Mould for impeller having multi rotational structure |
| CN110385837A (en) * | 2018-04-20 | 2019-10-29 | 宁波方太厨具有限公司 | A kind of rotary core pulling die structure |
| JP2020055021A (en) * | 2018-10-03 | 2020-04-09 | 株式会社 旭 | Molding device and method for producing molded product |
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