CN218876133U - Plastic core injection mold for cigarette paper, inner lining paper and tipping paper - Google Patents
Plastic core injection mold for cigarette paper, inner lining paper and tipping paper Download PDFInfo
- Publication number
- CN218876133U CN218876133U CN202223287487.5U CN202223287487U CN218876133U CN 218876133 U CN218876133 U CN 218876133U CN 202223287487 U CN202223287487 U CN 202223287487U CN 218876133 U CN218876133 U CN 218876133U
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- injection mold
- plastic core
- plate
- plastics
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- 239000004033 plastic Substances 0.000 title claims abstract description 46
- 229920003023 plastic Polymers 0.000 title claims abstract description 46
- 238000002347 injection Methods 0.000 title claims abstract description 27
- 239000007924 injection Substances 0.000 title claims abstract description 27
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 19
- 238000000465 moulding Methods 0.000 claims abstract description 22
- 238000001746 injection moulding Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 21
- 210000001503 joint Anatomy 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000009826 distribution Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 6
- 238000007790 scraping Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 abstract description 13
- 239000012530 fluid Substances 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 abstract description 3
- 230000014759 maintenance of location Effects 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to a plastics core injection mold technical field specifically is a cigarette paper, interior slip sheet and connect dress paper to use plastics core injection mold, including last mould assembly and lower mould assembly, discharge gate department through the runner of moulding plastics sets up the thimble, utilize the top to carry out the shutoff of certain area to the discharge gate, the relatively poor problem of mobility of cooperation plastics raw materials fluid itself, make the runner of moulding plastics still can carry out reinforced injection moulding under the retention pressure condition, and when reinforced pressure loses, plastics raw materials fluid can't be discharged from the discharge gate, just avoided forming the water filling port, great pleasing to the eye the whole outward appearance of plastics core, saved the step of cutting off the water filling port simultaneously, simplified the process.
Description
Technical Field
The utility model relates to a plastics core injection mold technical field specifically is a cigarette paper, interior slip sheet and connect dress paper to use plastics core injection mold.
Background
In the production and processing processes of the cigarette paper, the lining paper and the tipping paper, a cylindrical plastic core made of plastic is required to be used for winding, so that the cigarette paper, the lining paper and the tipping paper are packaged into a roll shape, and subsequent processing and use are facilitated.
The existing hot runner mold of the plastic core is a mold which utilizes a heating device to enable melt in a runner not to solidify all the time, and the hot runner mold is extremely widely applied to various industrially developed countries and regions in the world because the forming period is shorter than that of the traditional mold and raw materials are saved.
In chinese patent with patent application No. CN202020894243.5, a high impact resistance cigarette paper plastic core hot runner mold is disclosed, which comprises a bottom block, fixing rods are fixedly connected to the front side and the rear side of the top of the bottom block, a heat dissipation device is movably connected to the top of the bottom block, bumps are fixedly connected to the front side and the rear side of the heat dissipation device, the bumps are movably connected to the fixing rods, and a pressing block is movably connected to the top of the surface of the fixing rod. The utility model discloses a set up fixed ring piece, guide bar, lower shaping groove, lower sealed tube, water injection hole, heating device, fixed buckle, first spacing screw, the spacing screw of second, shallow slot, sprue, go up sealed tube, apopore and the cooperation of last shaping groove and use, possess the advantage that cooling rate is fast and the drawing of patterns of being convenient for, solved current thermoplastic runner mould of being not convenient for cool off.
However, the above-mentioned patent still has the problem of the water filling port, and therefore, there is a need for a mold capable of injection molding a plastic core without a water filling port.
SUMMERY OF THE UTILITY MODEL
To above problem, the utility model provides a cigarette paper, interior slip sheet and connect dress paper to use plastics core injection mold, discharge gate department through the runner of moulding plastics sets up the thimble, utilize the top to carry out the shutoff of certain area to the discharge gate, the relatively poor problem of the mobility of cooperation plastics raw materials fluid itself, make the runner of moulding plastics still can carry out reinforced injection moulding under the retention pressure condition, and when reinforced pressure loses, plastics raw materials fluid can't be discharged from the discharge gate, just avoided forming the water filling port, great pleasing to the eye the whole outward appearance of plastics core, the step of cutting the water filling port has been saved simultaneously, the process has been simplified, and the machining precision of plastics core reaches positive and negative 0.02mm.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a cigarette paper, interior slip sheet and connect dress paper to use plastics core injection mold, includes:
an upper die assembly and a lower die assembly;
a plurality of forming cavities of the plastic core are arranged at the contact part between the upper die assembly and the lower die assembly;
the upper die assembly sequentially comprises a heat insulation plate, a flow distribution plate and an upper die plate from top to bottom, an injection molding flow channel sequentially penetrates through the heat insulation plate, the flow distribution plate and the upper die plate to be communicated with the molding cavity, a thimble is arranged at a communication port of the injection molding flow channel and the molding cavity, and a molding groove is formed in the upper die plate;
the lower die assembly sequentially comprises a material pushing plate, a lower die plate and a base from top to bottom, an upward convex die core is arranged between the material pushing plate and the lower die plate, the die core is matched with the forming groove to form the forming cavity, a guide rod penetrates through the material pushing plate, the lower die plate and the base, and a spring part is arranged between the lower die plate and the base.
As an improvement, a discharge gap is reserved between the ejector pin and a discharge hole of the injection molding flow channel.
As an improvement, the number of the forming cavities is four, and the four forming cavities are arranged in a square shape.
As an improvement, a heating element for heating the injection molding runner is arranged on the flow distribution plate.
As an improvement, a temperature control box for controlling the heating element is arranged on one side edge of the separation plate.
As an improvement, cooling flow channels are arranged on the upper template, the material pushing plate and the lower template around the molding cavity.
As an improvement, the mold core and the material pushing plate are arranged in a slope fit mode.
As an improvement, a limiting piece is arranged between the base and the lower template.
As an improvement, a butt joint assembly is arranged between the upper template and the material pushing plate and between the material pushing plate and the lower template, the butt joint assembly comprises an upper butt joint block and a lower butt joint block, a clamping groove is formed in the upper butt joint block, and a clamping block is arranged on the lower butt joint block.
The beneficial effects of the utility model reside in that:
(1) The utility model discloses a set up the thimble in the discharge gate department of the runner of moulding plastics, utilize the top to carry out the shutoff of certain area to the discharge gate, cooperate the relatively poor problem of mobility of plastics raw materials fluid itself, make the runner of moulding plastics still can carry out reinforced injection moulding under the condition of keeping pressure, and when reinforced pressure loses, plastics raw materials fluid can't be discharged from the discharge gate, just avoided forming the water filling port, great pleasing to the eye the whole outward appearance of plastics core, saved the step of cutting off the water filling port simultaneously, simplified the process;
(2) When the molding cavity is arranged, the cooling runner is arranged on the upper template, the material pushing plate and the lower template in a way of enclosing a molding cavity, and the molding cavity is rapidly cooled by the cooling runner, so that the molding speed of the injection mold is greatly improved;
(3) The utility model discloses when setting up the die cavity, set up the scraping wings, when upper and lower mould is separately, release on fashioned plastics core through pushing away the direct section of thick bamboo mold core of flitch, realize blockking to take off the material, degree of automation is high.
To sum up, the utility model has the advantages of degree of automation is high, machining efficiency is high, the shaping plastics core quality is high, is particularly useful for plastics core injection mold processing technology field.
Drawings
FIG. 1 is a schematic view of the front view structure of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic sectional view of the first embodiment of the present invention;
FIG. 4 is a schematic sectional view of the present invention;
fig. 5 is a schematic sectional view of the present invention;
FIG. 6 is an enlarged view of the structure at A in FIG. 1;
fig. 7 is an enlarged view of the structure at B in fig. 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Example 1:
as shown in fig. 1 to 7, a plastic core injection mold for cigarette paper, inner liner paper and tipping paper comprises:
an upper die assembly 1 and a lower die assembly 2;
a plurality of molding cavities 4 of the plastic core 3 are arranged at the contact part between the upper die assembly 1 and the lower die assembly 2;
the upper die assembly 1 sequentially comprises a heat insulation plate 11, a flow distribution plate 12 and an upper die plate 13 from top to bottom, an injection molding flow channel 14 sequentially penetrates through the heat insulation plate 11, the flow distribution plate 12 and the upper die plate 13 to be communicated with the forming cavity 4, a thimble 141 is arranged at a communication port of the injection molding flow channel 14 and the forming cavity 4, and a forming groove 131 is formed in the upper die plate 13;
the lower die component 2 sequentially comprises a material pushing plate 21, a lower die plate 22 and a base 23 from top to bottom, wherein an upward convex die core 24 is arranged between the material pushing plate 21 and the lower die plate 22, the die core 24 is matched with the forming groove 131 to form the forming cavity 4, a guide rod penetrates through the material pushing plate 21, the lower die plate 22 and the base 23, and a spring piece 25 is arranged between the lower die plate 22 and the base 23.
A discharge gap is reserved between the thimble 141 and the discharge port of the injection molding runner 14.
The thimble 141 may be arranged with a diameter smaller than that of the discharge port, or the thimble 141 may be arranged in a plum blossom shape, and a concave groove is formed on the sidewall of the thimble and is matched with the discharge port to form a discharge gap.
More specifically, the thimble 141 may be inserted from the top of the injection runner 14, or may be embedded at the discharge port.
Thus, when the mold works, the fluid raw material output through the injection flow channel 14 can be input into the molding cavity 4, and when the pumping pressure of the fluid raw material disappears, the fluid raw material cannot flow out from the discharge gap due to the viscosity of the fluid raw material, so that the injection molding plastic core is ensured not to have a water injection port, and the leakage condition is avoided.
Specifically, the injection mold of this application is preferred become die cavity 4 and be provided with four, four become die cavity 4 and be square arrangement setting for the specification volume side of mould is positive, can not occupy too big volume.
Furthermore, the flow distribution plate 12 is provided with a heating element for heating the injection flow channel 14, so as to maintain the fluidity of the fluid raw material in the injection flow channel 14.
A temperature control box 121 for controlling the heating element is arranged on one side edge of the separation plate 12.
Preferably, cooling channels are arranged on the upper template 13, the material pushing plate 21 and the lower template 22 around the molding cavity 4.
The cooling runner is arranged around the cavity 4, so that the cooling speed of the raw material in the molding cavity 4 is increased, and the molding speed of the hot runner mold is increased.
In addition, the mold core 24 and the material pushing plate 21 are arranged in a slope matching mode, the mold core 24 is of a hat-shaped structure, the top of the mold core is of a cylindrical structure, the middle of the mold core is of a trapezoidal platform shape, the bottom of the mold core is of a disc shape, and the trapezoidal platform shape in the middle of the mold core is matched with the material pushing plate 21 in the slope mode, so that the mold core is stable.
In addition, a limiting member 26 is arranged between the base 23 and the lower template 22.
The butt joint assembly 5 is arranged between the upper template 13 and the material pushing plate 21 and between the material pushing plate 21 and the lower template 22, the butt joint assembly 5 comprises an upper butt joint block 51 and a lower butt joint block 52, a clamping groove is formed in the upper butt joint block 51, and a clamping block is arranged on the lower butt joint block 52.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included in the present invention.
Claims (9)
1. The utility model provides a cigarette paper, interior slip sheet and connect dress paper to use plastics core injection mold which characterized in that includes:
an upper die assembly (1) and a lower die assembly (2);
a plurality of molding cavities (4) of the plastic core (3) are arranged at the contact part between the upper die assembly (1) and the lower die assembly (2);
the upper die assembly (1) sequentially comprises a heat insulation plate (11), a flow distribution plate (12) and an upper die plate (13) from top to bottom, an injection molding flow channel (14) sequentially penetrates through the heat insulation plate (11), the flow distribution plate (12) and the upper die plate (13) to be communicated with the forming cavity (4), a thimble (141) is arranged at a communication port of the injection molding flow channel (14) and the forming cavity (4), and a forming groove (131) is formed in the upper die plate (13);
lower mould subassembly (2) is from last to including scraping wings (21), lower bolster (22) and base (23) down in proper order, scraping wings (21) with set up bellied mold core (24) that make progress between lower bolster (22), this mold core (24) with shaping groove (131) cooperation forms become die cavity (4), the guide arm pierces through scraping wings (21), lower bolster (22) and base (23), just lower bolster (22) with be provided with spring part (25) between base (23).
2. The plastic core injection mold for cigarette paper, inner lining paper and tipping paper as claimed in claim 1, wherein:
and a discharge gap is reserved between the ejector pin (141) and the discharge hole of the injection molding runner (14).
3. The plastic core injection mold for cigarette paper, inner liner paper and tipping paper as claimed in claim 1, wherein:
the four molding cavities (4) are arranged in a square shape.
4. The plastic core injection mold for cigarette paper, inner liner paper and tipping paper as claimed in claim 1, wherein:
and a heating element for heating the injection molding runner (14) is arranged on the flow distribution plate (12).
5. The plastic core injection mold for cigarette paper, inner lining paper and tipping paper as claimed in claim 4, wherein:
and a temperature control box (121) for controlling the heating element is arranged on one side edge of the flow distribution plate (12).
6. The plastic core injection mold for cigarette paper, inner lining paper and tipping paper as claimed in claim 1, wherein:
and cooling flow channels are arranged on the upper template (13), the material pushing plate (21) and the lower template (22) around the molding cavity (4).
7. The plastic core injection mold for cigarette paper, inner lining paper and tipping paper as claimed in claim 1, wherein:
the mold core (24) and the material pushing plate (21) are arranged in a slope fit mode.
8. The plastic core injection mold for cigarette paper, inner liner paper and tipping paper as claimed in claim 1, wherein:
a limiting piece (26) is arranged between the base (23) and the lower template (22).
9. The plastic core injection mold for cigarette paper, inner liner paper and tipping paper as claimed in claim 1, wherein:
and a butt joint component (5) is arranged between the upper template (13) and the material pushing plate (21) and between the material pushing plate (21) and the lower template (22), the butt joint component (5) comprises an upper butt joint block (51) and a lower butt joint block (52), a clamping groove is formed in the upper butt joint block (51), and a clamping block is formed in the lower butt joint block (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223287487.5U CN218876133U (en) | 2022-12-07 | 2022-12-07 | Plastic core injection mold for cigarette paper, inner lining paper and tipping paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223287487.5U CN218876133U (en) | 2022-12-07 | 2022-12-07 | Plastic core injection mold for cigarette paper, inner lining paper and tipping paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218876133U true CN218876133U (en) | 2023-04-18 |
Family
ID=85943095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223287487.5U Active CN218876133U (en) | 2022-12-07 | 2022-12-07 | Plastic core injection mold for cigarette paper, inner lining paper and tipping paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218876133U (en) |
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2022
- 2022-12-07 CN CN202223287487.5U patent/CN218876133U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230620 Address after: 313201 Building 23, No. 66, Tianxin Road, Xinshi Town, Deqing County, Huzhou City, Zhejiang Province Patentee after: Zhejiang Qizhou New Material Co.,Ltd. Address before: 311118 Baizhang town Baizhang village, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: Hangzhou Rushang Industry and Trade Co.,Ltd. |
|
| TR01 | Transfer of patent right |