CN210389977U - Hot runner system for injection mold and inverted injection mold - Google Patents
Hot runner system for injection mold and inverted injection mold Download PDFInfo
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- CN210389977U CN210389977U CN201920962270.9U CN201920962270U CN210389977U CN 210389977 U CN210389977 U CN 210389977U CN 201920962270 U CN201920962270 U CN 201920962270U CN 210389977 U CN210389977 U CN 210389977U
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Abstract
The utility model provides a hot runner system and flip-chip injection mold for injection mold relates to injection mold technical field, has solved the relatively big technical problem of volume of the flip-chip injection structure hot runner system who exists among the prior art. The hot runner system for the injection mold comprises a lengthened main heat nozzle, a middle flow guide structure and a divided heat nozzle, wherein the lengthened main heat nozzle and the divided heat nozzle are respectively arranged on the upper side and the lower side of the middle flow guide structure and are respectively connected with the middle flow guide structure, and the lengthened main heat nozzle can penetrate through an ejector plate of the injection mold to be matched with an injection molding machine injection nozzle. The utility model is used for reduce flip-chip injection mold hot runner system's volume.
Description
Technical Field
The utility model belongs to the technical field of the injection mold technique and specifically relates to a hot runner system and flip-chip injection mold for injection mold are related to.
Background
The injection mould has two structures of a positive installation structure and a reverse installation structure, and some products cannot leave a sprue mark on the appearance surface, so the injection mould is designed into the reverse installation structure. According to the traditional inverted injection molding structure, an ejection system is located below a splitter plate of a hot runner system, and the length of each thermal resistor on the hot runner system is long, so that the volume of a runner of the hot runner system is large.
The applicant finds that the traditional inverted injection mould at least has the following technical problems:
(1) the hot runner system of the existing inverted injection molding structure has large flow passage volume, molten plastic in the flow passage cannot be completely injected in one injection molding cycle, the rest plastic is heated for the time of one injection molding cycle, and the long-time heating easily causes chemical decomposition of the plastic and quality abnormity of yellow and black lines;
(2) the temperature sensing point of the sub-heat nozzle is at the position (head position) of the heat nozzle close to the glue outlet, if the length of each sub-heat resistance on the hot runner system is long, the temperature of the glue material melted at one end (tail position) of the sub-heat nozzle close to the guide plate is difficult to obtain, and if a group of temperature sensing parts are added, the manufacturing process and cost can be increased.
The traditional hot runner system with the inverted injection molding structure is difficult to meet the field production requirement, so that the optimization and innovation of a mold structure and the hot runner system are needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hot runner system and flip-chip injection mold for injection mold has solved the relatively big technical problem of flip-chip injection structure hot runner system's that exists among the prior art. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a pair of hot runner system for injection mold, chew, middle water conservancy diversion structure and divide heat including extra long main heat, wherein, extra long main heat chew with divide the heat to chew and set up respectively the upper and lower both sides of middle water conservancy diversion structure and all with middle water conservancy diversion structure is connected, extra long main heat is chewed and can be passed injection mold's thimble board jets with the injection molding machine and chews and cooperate.
Preferably, the main hot main of extension is chewed including the heat main part, the main part is chewed to the heat and is inside hollow structure and this inside hollow structure forms inside runner, inside runner with runner in the middle water conservancy diversion structure is linked together.
Preferably, the hot nozzle body is provided with a heating device for heating the molten rubber in the internal flow channel.
Preferably, the heating device includes an electric heating wire wound around an outer side surface of the hot nozzle body in an axial direction of the internal flow passage.
Preferably, the hot nozzle main body is provided with a temperature sensing line, the hot nozzle main body is provided with a line containing groove, and the temperature sensing line is arranged in the line containing groove.
Preferably, the inlet of the internal flow passage is connected with the hot nozzle main body through a spherical structure, the inlet of the internal flow passage is positioned in the hot nozzle main body, the internal flow passage and the hot nozzle main body are coaxially arranged, and the spherical structure is a part of a spherical surface.
Preferably, the main part is chewed to heat includes barrel portion, pedestal portion and location portion, the barrel portion, pedestal portion and location portion connect gradually, be provided with heating device and temperature sensing line on the barrel portion, location portion stretches into middle water conservancy diversion structure just pedestal portion with middle water conservancy diversion structure is connected.
Preferably, the main hot nozzle of extension still includes the sleeve, the sleeve sets up outside the main part is chewed to the heat, the heating device on the main part is chewed to the heat and the leading-out terminal of temperature sensing line passes lead wire hole on the sleeve.
Preferably, one end of the sleeve is supported on the seat body part of the hot nozzle main body, and the other end of the sleeve fixes the sleeve on the hot nozzle main body through a clamping ring arranged on the hot nozzle main body.
The inverted injection mold comprises the hot runner system for the injection mold.
Preferably, flip-chip injection mold includes fixed plate, thimble board, cylinder board, hot flow board and fixed die plate, the fixed plate the thimble board the cylinder board hot flow board and the fixed die plate is followed flip-chip injection mold's direction of height from the top down sets gradually, the main heat of extension is chewed and is passed the fixed plate thimble board and cylinder board, middle water conservancy diversion structure sets up the intracavity that holds of hot flow board, divide hot to chew and pass hot flow board inserts the fixed die plate.
The utility model provides a hot runner system for injection mold, extension main heat is chewed and is divided heat to chew and set up respectively in the upper and lower both sides of middle water conservancy diversion structure and extension main heat is chewed the thimble board that can pass injection mold and is penetrated with the injection molding machine and chew and cooperate, because the length that extension main heat was chewed increases, corresponding each divides thermal resistance length to reduce, and then make hot runner system's volume reduce, the relatively big technical problem of volume of the flip-chip injection structure hot runner system who exists among the prior art has been solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic perspective view of a conventional flip-chip injection mold;
FIG. 2 is a schematic front view of a conventional flip-chip injection mold;
FIG. 3 is a schematic sectional view taken along line B-B of FIG. 2;
fig. 4 is a schematic perspective view of an inverted injection mold according to an embodiment of the present invention;
fig. 5 is a schematic front view of an inverted injection mold according to an embodiment of the present invention;
FIG. 6 is a schematic sectional view taken along line A-A of FIG. 5;
fig. 7 is a schematic structural view of an elongated main nozzle provided in an embodiment of the present invention;
fig. 8 is a schematic structural view of a hot nozzle body according to an embodiment of the present invention;
fig. 9 is a schematic front view of a hot nozzle body according to an embodiment of the present invention;
FIG. 10 is a schematic cross-sectional view taken along line C-C of FIG. 9;
fig. 11 is a schematic top view of a hot nozzle body according to an embodiment of the present invention;
fig. 12 is a schematic structural view of a sleeve according to an embodiment of the present invention;
fig. 13 is a schematic structural view of a heating wire according to an embodiment of the present invention;
fig. 14 is a schematic structural diagram of a temperature sensing line according to an embodiment of the present invention.
In the figure 1-lengthening the main heat nozzle; 11-an internal flow channel; 12-a hot nozzle body; 121-wire accommodating groove; 122-a barrel portion; 123-a seat body part; 124-a positioning part; 13-electric heating wire; 14-temperature sensing line; 15-spherical structure; 16-a sleeve; 161-lead holes; 2-a middle flow guiding structure; 3-a heat-distributing nozzle; 4-ejector pin plate; 5, fixing a plate; 6-cylinder plate; 7-heat circulation plate; 8-fixing a template; 9-a backing plate; 10-moving the template; 110-enter glue main mouth; 120-square iron; 130-snap ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-14, the utility model provides a hot runner system for injection mold, chew 3 including extension main heat chewing 1, middle water conservancy diversion structure 2 and branch heat, wherein, extension main heat chews 1 and divides heat to chew 3 and sets up respectively in the upper and lower both sides of middle water conservancy diversion structure 2 and all be connected with middle water conservancy diversion structure 2, and extension main heat is chewed 1 and can be passed injection mold's thimble board 4 and is penetrated with the injection molding machine and chew and cooperate. Referring to fig. 1 to 3, which are schematic views of a conventional inverted injection mold, in the hot runner system of the conventional inverted injection mold, a main glue inlet nozzle 110 is short in length, and each thermal divider 3 is long in length, so that the volume of the hot runner system is large; and the utility model provides a hot runner system for injection mold, see fig. 4-6, the enough length that 1 was chewed to extension main heat makes extension main heat chew 1 can pass injection mold's thimble board 4, because the length that 1 was chewed to extension main heat increases, corresponding each branch thermal resistance 3's length reduces, and then makes hot runner system's volume reduce. The following is a data description of the advantages of the present invention over conventional hot runner systems:
the product volume is 485044mm3The volume of the hot runner system of the utility model is 343137mm3The volume of the hot runner system with the traditional structure is 500120mm3。
The data show that the volume of the hot runner system with the traditional structure is larger than the product volume, if the traditional inverted injection mold is used, the molten rubber of the hot runner system cannot be completely beaten in one injection molding cycle, the rest plastic is heated for one injection molding cycle, and the chemical decomposition of the plastic is easy to yellow and black after long-time heating; and the utility model provides a hot runner system for injection mold, the utility model provides a hot runner system reduces nearly third for traditional hot runner system, and is also far than the small of product, and each cycle homoenergetic of moulding plastics is complete has beaten the melting sizing material in the hot runner system, and the plastics that have significantly reduced are because of the risk of long-time heating decomposition.
Traditional flip-chip injection mold's hot runner system divides the temperature sensing point that the heat was chewed to chew the position (head position) that is close to out the jiao kou in the heat, if each branch thermal resistance length on the hot runner system is long, is difficult to obtain and divides the heat to chew the temperature of the one end (afterbody position) melting sizing material that is close to the guide plate, if increase a set of temperature sensing part, can increase preparation technology and cost. The utility model provides a hot runner system for injection mold, because branch heat chew 3 length shortens, when only setting up a temperature sensing point that is close to the glue outlet position on every branch heat chew 3, compared with the traditional mode, the utility model discloses can obtain the temperature of 3 afterbody positions of branch heat chew of relative accuracy; if set up a set of temperature sensing part, the utility model discloses the quantity that sets up can be less than traditional hot runner system, reduce cost.
The main body of the middle diversion structure 2 is a diversion plate, the lengthened main heat nozzle 1 is placed on the diversion plate, generally, the lengthened main heat nozzle 1 is positioned at the central position of the middle diversion structure 2, and during production, the lengthened main heat nozzle 1 is connected with a cannon nozzle of an injection molding machine, so that molten rubber is injected into a hot runner system from the injection molding machine; the upper surface and the lower surface of the flow distribution plate are distributed with heating elements, namely electric heating bent pipes, which are used for heating the flow distribution plate; the temperature thermocouple on the flow distribution plate is used for measuring the temperature of the flow distribution plate; each heat distributing nozzle 3 realizes the distribution of the sizing material in the distribution plate. In the production process, molten rubber flows into the cavity through the runners of the lengthened hot main nozzle 1, the flow distribution plate 2 and the heat distribution nozzle 3 to form a product.
As the optional implementation of the embodiment of the utility model discloses, see fig. 10, extension main heat is chewed 1 and is chewed main part 12 including heat, main part 12 is chewed for inside hollow structure and this inside hollow structure forms inside runner 11 to heat, inside runner 11 is linked together with the runner in the middle water conservancy diversion structure 2, the diameter that is close to inside runner 11 inlet port in the diameter of two arbitrary cross sections of inside runner 11 can be not more than the diameter of keeping away from inside runner 11 inlet port, the upper portion diameter of inside runner 11 can be 6mm, and inside runner 11 can be the round platform form.
As an optional implementation manner of the embodiment of the present invention, referring to fig. 7 and 13, a heating device for heating the molten rubber in the internal flow passage 11 is provided on the hot nozzle main body 12. The heating means may comprise heating wires 13, and the heating wires 13 are wound around the outer side surface of the nozzle body 12 in the axial direction of the inner flow passage 11.
As an optional implementation manner of the embodiment of the present invention, referring to fig. 8 and 10, the thermal tap body 12 is provided with the temperature sensing line 14, the thermal tap body 12 is provided with the line containing slot 121, and the temperature sensing line 14 is disposed in the line containing slot 121. The free end of the temperature sensing line 14 is a temperature sensing point, and the temperature sensing line 14 is used for sensing the temperature of the molten rubber in the inner runner 11.
As the optional implementation mode of the embodiment of the present invention, referring to fig. 8 and 10, the inlet port of the internal flow passage 11 is connected to the hot nozzle main body 12 through the spherical structure 15, the inlet port of the internal flow passage 11 is located in the hot nozzle main body 12, and the internal flow passage 11 and the hot nozzle main body 12 are coaxially arranged, and the spherical structure 15 is a part of the spherical surface. The spherical structure 15 is contacted with the big gun mouth of the injection molding machine, and the sphere diameter of the spherical structure 15 is slightly larger than that of the big gun mouth of the injection molding machine.
As the optional embodiment of the utility model provides a, main part 12 is chewed to heat includes barrel 122, pedestal portion 123 and location portion 124, and barrel 122, pedestal portion 123 and location portion 124 connect gradually, are provided with heating device and temperature sensing line 14 on barrel 122, and location portion 124 stretches into middle water conservancy diversion structure 2 and pedestal portion 123 is connected with middle water conservancy diversion structure 2. The positioning portion 124 extends into the middle flow guide structure 2 to perform the installation and positioning functions, and the seat body portion 123 and the middle flow guide structure 2 can be detachably connected through screws.
As an optional implementation manner of the embodiment of the present invention, the lengthened main heat nozzle 1 further includes a sleeve 16, the sleeve 16 is disposed outside the heat nozzle main body 12, and the heating device on the heat nozzle main body 12 and the leading end of the temperature sensing wire 14 pass through the lead hole 161 on the sleeve 16; referring to fig. 7, sleeve 16 is supported at one end on seat portion 123 of hot nozzle body 12 and at the other end by a retaining ring 130 provided on hot nozzle body 12 to secure sleeve 16 to hot nozzle body 12.
A flip-chip injection mold includes a hot runner system for an injection mold. Flip-chip injection mold includes fixed plate 5, thimble board 4, cylinder board 6, hot circulation board 7 and fixed die plate 8, fixed plate 5, thimble board 4, cylinder board 6, hot circulation board 7 and fixed die plate 8 set gradually from the top down along flip-chip injection mold's direction of height, 1 passes fixed plate 5 is chewed to extension main heat, thimble board 4 and cylinder board 6, middle water conservancy diversion structure 2 sets up in the intracavity that holds of hot circulation board 7, divide hot 3 of chewing to pass hot circulation board 7 and insert fixed die plate 8. The utility model provides a flip-chip injection mold places the far side at the product die cavity to near side, the ejecting system that hot circulation board 7 has been pushed to the product die cavity, makes each branch heat chew 3 short as far as can do, realizes that the volume in the hot runner system reduces by a wide margin, and ejecting and not too big influence to the drawing of patterns of product.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (11)
1. A hot runner system for an injection mold is characterized by comprising a lengthened main hot nozzle (1), a middle flow guide structure (2) and a heat distribution nozzle (3), wherein,
the extension owner is hot chew (1) and a plurality of divide hot chew (3) to set up respectively the upper and lower both sides of middle water conservancy diversion structure (2) and all with middle water conservancy diversion structure (2) are connected, the extension owner is hot chew (1) and can pass injection mold's thimble board (4) and injection molding machine are penetrated and are chewed and cooperate.
2. The hot runner system for injection molds according to claim 1, wherein the elongated main nozzle (1) comprises a main nozzle body (12), the main nozzle body (12) is an internal hollow structure, the internal hollow structure forms an internal flow passage (11), and the internal flow passage (11) is communicated with a flow passage in the intermediate flow guide structure (2).
3. Hot-runner system for injection molds according to claim 2, characterized in that the hot nozzle body (12) is provided with heating means for heating the molten compound in the internal flow channel (11).
4. The hot-runner system for injection molds according to claim 3, wherein the heating means includes a heating wire (13), and the heating wire (13) is wound around an outer side surface of the nozzle body (12) in an axial direction of the internal flow passage (11).
5. The hot runner system for injection molds according to claim 2, wherein the hot nozzle body (12) is provided with a temperature sensing wire (14), the hot nozzle body (12) is provided with a wire accommodating groove (121), and the temperature sensing wire (14) is arranged in the wire accommodating groove (121).
6. The hot-runner system for injection molds according to claim 2, wherein the inlet port of the internal flow channel (11) is connected to the hot nozzle body (12) by a spherical structure (15), the inlet port of the internal flow channel (11) is located in the hot nozzle body (12) and the internal flow channel (11) is coaxially arranged with the hot nozzle body (12), and the spherical structure (15) is a part of a sphere.
7. The hot runner system for the injection mold according to claim 2, wherein the hot nozzle body (12) comprises a cylinder body (122), a seat body (123) and a positioning portion (124), the cylinder body (122), the seat body (123) and the positioning portion (124) are sequentially connected, a heating device and a temperature sensing line (14) are arranged on the cylinder body (122), the positioning portion (124) extends into the middle flow guide structure (2), and the seat body (123) is connected with the middle flow guide structure (2).
8. The hot runner system for injection molds according to claim 2, wherein the elongated main nozzle (1) further comprises a sleeve (16), the sleeve (16) is arranged outside the main body (12) of the hot nozzle, and the heating device on the main body (12) of the hot nozzle and the outlet end of the temperature sensing wire (14) pass through the lead hole (161) on the sleeve (16).
9. The hot-runner system for injection molds according to claim 8, wherein the sleeve (16) is supported at one end on a seating portion (123) of the hot nozzle body (12) and fixed at the other end to the hot nozzle body (12) by a snap ring (130) provided to the hot nozzle body (12).
10. A flip-chip injection mold comprising the hot runner system for an injection mold of any one of claims 1 to 9.
11. The inverted injection mold according to claim 10, wherein the inverted injection mold comprises a fixing plate (5), an ejector plate (4), a cylinder plate (6), a heat flow plate (7) and a fixed mold plate (8), the fixing plate (5), the ejector plate (4), the cylinder plate (6), the heat flow plate (7) and the fixed mold plate (8) are sequentially arranged from top to bottom along the height direction of the inverted injection mold, the main lengthening nozzle (1) penetrates through the ejector plate (4) and the cylinder plate (6), the intermediate flow guide structure (2) is arranged in an accommodating cavity of the heat flow plate (7), and the heat distribution nozzle (3) penetrates through the heat flow plate (7) and is inserted into the fixed mold plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920962270.9U CN210389977U (en) | 2019-06-25 | 2019-06-25 | Hot runner system for injection mold and inverted injection mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920962270.9U CN210389977U (en) | 2019-06-25 | 2019-06-25 | Hot runner system for injection mold and inverted injection mold |
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| CN210389977U true CN210389977U (en) | 2020-04-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110303644A (en) * | 2019-06-25 | 2019-10-08 | 珠海格力精密模具有限公司 | Injection mold hot runner system and flip injection mold |
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2019
- 2019-06-25 CN CN201920962270.9U patent/CN210389977U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110303644A (en) * | 2019-06-25 | 2019-10-08 | 珠海格力精密模具有限公司 | Injection mold hot runner system and flip injection mold |
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