CN116141590A - Novel pouring gate structure for ice chest lining opening injection mold - Google Patents
Novel pouring gate structure for ice chest lining opening injection mold Download PDFInfo
- Publication number
- CN116141590A CN116141590A CN202310270539.8A CN202310270539A CN116141590A CN 116141590 A CN116141590 A CN 116141590A CN 202310270539 A CN202310270539 A CN 202310270539A CN 116141590 A CN116141590 A CN 116141590A
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- Prior art keywords
- die
- injection
- lining
- submarine gate
- cavity
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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
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
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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
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
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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 discloses a novel ice chest lining injection mold submarine gate structure, which relates to the technical field of injection gates and comprises an upper mold and a lower mold, wherein a heat flow mechanism is arranged on the upper side of the upper mold, and the novel ice chest lining injection mold submarine gate structure also comprises a heat flow channel which is arranged in the upper mold and is communicated with the heat flow mechanism; the transition cavity is arranged on the upper side of the lower die and is communicated with the hot runner; the ox horn submarine gate is arranged in the lower die and is in a ox horn shape, wherein one end with a larger ox horn submarine gate caliber is communicated with the transition cavity, and one end with a smaller ox horn submarine gate caliber is connected with the gate nozzle; the lining mouth die cavity is arranged between the lower side of the upper die and the upper side of the lower die, an injection hole is formed in the inner side of the inner ring of the part of the lining mouth die cavity to be clamped with the ribs, and the injection hole is communicated with the injection end of the pouring nozzle; the invention directly solves the problem of appearance defect of the lining after installation and does not increase the amount of waste materials in the injection molding process.
Description
Technical Field
The invention relates to the technical field of injection gates, in particular to a novel submarine gate structure of an injection mold for a lining opening of an ice chest.
Background
In the current design and manufacture of the ice chest, the plastic lining opening of the ice chest is a key part, and the appearance and quality of the plastic lining opening part are greatly determined on the whole quality of ice chest products because the plastic lining opening part is usually positioned at the most obvious position outside the upper end of the ice chest. The plastic lining mouth material of the refrigerator is mainly high molecular polymers such as PP, ABS, etc., and is produced by melting PP, ABS solid particles at high temperature to become glue solution, injecting the glue solution into a special lining mouth injection mold cavity for the glue solution at high pressure, and taking out the lining mouth formed in the cavity after cooling.
The injection mould with the lining opening of the refrigerator mainly comprises a runner, a gate and a cavity, glue solution is extruded into the gate through the hot runner and is sprayed into the cavity from the gate nozzle of the gate, the part of the glue solution which is cooled and solidified in the cavity is a lining opening part, and the part left in the gate is called waste. The lining mouth forming piece in the cavity and the waste material in the pouring gate can be broken and separated with the help of injection molding equipment, so that the solidified glue solution at the pouring gate nozzle can be broken and separated from the lining mouth easily in the process of demoulding the lining mouth.
From the standpoint of the bushing insert mold design and the molding of the bushing insert, the area of the most likely systematic appearance defect is the location where the bushing insert is connected to the gate nozzle. In the injection molding process, in order to reduce excessive waste caused by oversized pouring gate, the pouring gate is designed in the inner ring area of the lining opening, which is close to the hot runner, and the pouring gate nozzle is arranged at the bottom of the inner ring so as to reduce the volume size of the pouring gate.
In the actual production process, in the process of breaking off the lining opening and the pouring gate waste, partial residues of glue solution are left on the lining opening due to the uneven stress, the quantity of the pouring gates of the plastic lining opening of the freezer is usually designed to be 8-24 different according to the volume size, so that the high-density glue solution residues can cause large appearance defects; currently, these residues are usually removed by manual cutting, which not only takes up a lot of man-hours, but also is prone to secondary appearance damage during cutting.
If the gate position is moved to the back position of the non-visible surface of the lining opening, the length of the gate is increased to increase the proportion of waste materials, the manufacturing and maintenance difficulty of the gate of the type is high, the requirement on the size precision of the gate nozzle is high, the gate nozzle is worn for a long time to cause the size of the gate to become thicker, and the demolding process is easy to cause difficult demolding of the lining opening to cause pulling crack.
Disclosure of Invention
The invention aims to provide a novel ice chest lining injection mold submarine gate structure, which solves the following technical problems:
(1) For the traditional mode that the submarine gate is arranged at the bottom of the inner ring of the lining opening, the proportion of waste materials can be reduced, but the bottom of the inner ring of the refrigerator opening is kept at the outer side to be a visible surface after the submarine gate is assembled into the pre-assembled box body of the refrigerator, if too much glue solution residue at the submarine gate can seriously affect the appearance of a product to generate defects, and the manual treatment is time-consuming and labor-consuming, so that the risk of secondary appearance damage is caused;
therefore, the technical problems to be solved by the invention are as follows: how to solve the appearance defect of the lining opening is more time-saving and labor-saving and does not cause secondary appearance damage to the lining opening.
(2) For the traditional mode that the submarine gate position is arranged on the back surface of the lining opening, the lining opening of the refrigerator is a non-visible surface, and gate residues cannot influence the appearance of the lining opening; however, the proportion of waste materials generated by the long back submarine gate runner is high, the requirement on the size precision of the gate nozzle by the back submarine gate is high, the gate nozzle is worn for a long time to cause the size of the gate to become thicker, and the demolding process is easy to cause difficult demolding of the lining opening to cause the pulling crack;
therefore, the technical problems to be solved by the invention are as follows: how to avoid the generation of a high proportion of waste when solving the appearance defect of the lining opening.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a novel pouring gate structure is hidden to refrigerator-freezer lining mouth injection mold, includes mould and bed die, go up mould and bed die and agree with from top to bottom and form the mould wholly, it is provided with heat flow mechanism to go up the mould upside, still includes
The hot runner is arranged in the upper die and is communicated with the hot runner mechanism;
the transition cavity is arranged on the upper side of the lower die and is communicated with the hot runner;
the ox horn submarine gate is arranged in the lower die and is in a ox horn shape, wherein one end with a larger ox horn submarine gate caliber is communicated with the transition cavity, and one end with a smaller ox horn submarine gate caliber is connected with the gate;
the lining die cavity is arranged between the lower side of the upper die and the upper side of the lower die, an injection hole is formed in the inner side of the inner ring of the rib part to be clamped of the lining die cavity, and the injection hole is communicated with the injection end of the pouring nozzle.
In still further embodiments: the inner side of the rib part to be clamped of the lining mouth die cavity is provided with a widening groove, and the injection hole is arranged on the widening groove.
In still further embodiments: the width of the widening groove is 3-4mm.
In still further embodiments: the injection hole has the same size as the outlet of the injection end of the nozzle.
In still further embodiments: the diameters of the injection hole and the injection end outlet of the pouring nozzle are smaller than 1mm.
The invention has the beneficial effects that:
(1) According to the invention, the gate nozzle is designed at the rib part on the inner side of the inner ring of the lining opening, the gate nozzle is arranged in the refrigerator after the lining opening is assembled, no appearance defect is generated even if glue solution remains, no manual treatment is needed, time and labor are saved, secondary appearance damage to the lining opening can be completely avoided, and the problem of appearance defect of the lining opening after installation is directly solved.
(2) In the invention, the sprue nozzle of the ox horn submarine gate is not designed on the back of the lining mouth, the integral bending degree of the sprue is small, and the sprue is easy to process and maintain; compared with the traditional sprue, the size of the ox horn submarine sprue is unchanged, and the waste amount is not increased.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the internal structure of an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of the portion A of FIG. 2 in accordance with the present invention;
fig. 4 is a schematic perspective view of a part of the structure of an embodiment of the present invention.
The reference numerals in the figures represent: 100. an upper die; 200. a lower die; 300. a heat flow mechanism; 400. a hot runner; 500. a transition chamber; 600. a ox horn submarine gate; 700. a pouring nozzle; 800. a liner cavity; 900. widening the groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, the present invention is a novel ice chest injection mold submarine gate structure, comprising an upper mold 100 and a lower mold 200, wherein the upper mold 100 and the lower mold 200 are vertically combined to form a mold whole, a heat flow mechanism 300 is arranged on the upper side of the upper mold 100, the heat flow mechanism 300 is used for heating plastic particles into glue liquid, and the novel ice chest injection mold submarine gate structure further comprises a heat flow channel 400, the heat flow channel 400 is arranged in the upper mold 100, the heat flow channel 400 is communicated with the heat flow mechanism 300, and the glue liquid flows into the heat flow channel 400 from the heat flow mechanism 300; the upper side of the lower die 200 is provided with a transition cavity 500, the transition cavity 500 is communicated with the hot runner 400, glue liquid flows into the transition cavity 500 from the hot runner 400, one side, far away from the hot runner 400, of the transition cavity 500 is connected with a ox horn submarine gate 600, the ox horn submarine gate 600 is arranged in the lower die 200 and is in a ox horn shape, one end with a larger diameter opening of the ox horn submarine gate 600 is communicated with the transition cavity 500, and one end with a smaller diameter opening of the ox horn submarine gate 600 is connected with a pouring nozzle 700.
The lower side of the upper die 100 is provided with a first cavity, the upper side of the lower die 200 is provided with a second cavity, when the upper die 100 is matched with the lower die 200 up and down, the first cavity and the second cavity are combined to form a lining mouth die cavity 800, the inner side of an inner ring of the rib part to be clamped of the lining mouth die cavity 800 is provided with an injection hole, and the injection hole is communicated with a material injection end of the pouring nozzle 700.
Specifically, when the lining mouth is manufactured, firstly, the upper die 100 and the lower die 200 are vertically matched, plastic particles are heated into glue liquid through the hot runner mechanism 300, the glue liquid flows into the transition cavity 500 through the hot runner 400, flows into the ox horn hidden gate 600 through the transition cavity 500, finally is sprayed into the lining mouth die cavity 800 through the gate 700, and stands for a period of time, after the glue liquid in the lining mouth die cavity 800 is fixedly formed, the upper die 100 and the lower die 200 are separated, the gate 700 is separated from the lining mouth die cavity 800, and the gate is formed; a small amount of glue residue may be left on the injection hole inside the lining cavity 800, but the glue residue may be blocked by the ribs because the clamping ribs are required at the position of the injection hole, so that the appearance of the lining after preassembling with the refrigerator is not affected.
Further, a widening groove 900 is formed on the inner side of the rib part to be clamped of the lining die cavity 800, and the injection hole is formed on the widening groove 900; the width of the widening groove 900 is 3-4mm.
Because rib thickness per se is narrower, consequently will inject the mouth setting and can receive the restriction in the position of lining mouth die cavity 800 installation rib, and the setting of widening groove 900 can make the groove width increase of installation rib at this moment, and through the experiment, when the size of seting up of injection hole is about 30% of rib thickness, is favorable to increasing the setting size of injection mouth, guarantees the flow when glue solution passes through injection mouth entering lining mouth die cavity 800, also can avoid the glue solution to produce the reduction mark after cooling.
Further, the injection hole is the same size as the outlet of the injection end of the nozzle 700; the diameter of the injection hole and the injection end outlet of the nozzle 700 are both less than 1mm.
The working principle of the invention is as follows:
when the lining mouth is manufactured, firstly, the upper die 100 and the lower die 200 are vertically matched, plastic particles are heated into glue liquid through the heat flow mechanism 300, the glue liquid flows into the transition cavity 500 through the hot runner 400, flows into the ox horn hidden gate 600 through the transition cavity 500, finally is sprayed into the lining mouth die cavity 800 through the gate 700, and stands for a period of time, after the glue liquid in the lining mouth die cavity 800 is fixedly formed, the upper die 100 and the lower die 200 are separated, the gate 700 is separated from the lining mouth die cavity 800, and the gate is formed; a small amount of glue residue may be left on the injection hole inside the lining cavity 800, but the glue residue may be blocked by the ribs because the clamping ribs are required at the position of the injection hole, so that the appearance of the lining after preassembling with the refrigerator is not affected.
In the description of the present invention, it should be understood that the terms "upper," "lower," "left," "right," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and for simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, as well as a specific orientation configuration and operation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (5)
1. The utility model provides a novel refrigerator-freezer lining mouth injection mold runner structure of hiding, includes cope match-up die (100) and bed die (200), cope match-up die (100) and bed die (200) are gone up and are agreed with from top to bottom and form the mould wholly, cope match-up die (100) upside is provided with heat flow mechanism (300), its characterized in that still includes
A hot runner (400), wherein the hot runner (400) is arranged inside the upper die (100), and the hot runner (400) is communicated with the hot runner mechanism (300);
the transition cavity (500) is arranged on the upper side of the lower die (200), and the transition cavity (500) is communicated with the hot runner (400);
the ox horn submarine gate (600) is arranged in the lower die (200), the ox horn submarine gate (600) is in a ox horn shape, one end of the ox horn submarine gate (600) with a larger diameter opening is communicated with the transition cavity (500), and one end of the ox horn submarine gate (600) with a smaller diameter opening is connected with the pouring nozzle (700);
the lining mouth die cavity (800), between lining mouth die cavity (800) locates last mould (100) downside and bed die (200) upside, lining mouth die cavity (800) wait to block the inner circle inboard at rib position and be equipped with the injection hole, the injection hole with the injection end of watering mouth (700) is linked together.
2. The novel ice chest bushing injection mold submarine gate structure according to claim 1, wherein a widening groove (900) is formed in the inner side of a rib part to be clamped of the bushing mold cavity (800), and the injection hole is formed in the widening groove (900).
3. The novel ice chest piece injection mold submarine gate structure according to claim 2, wherein the width of the widened slot (900) is 3-4mm.
4. The novel ice chest piece injection mold submarine gate structure according to claim 2, wherein the injection holes are the same size as the outlet of the injection end of the nozzle (700).
5. The novel ice chest piece injection mold submarine gate structure according to claim 4, wherein the diameters of the injection hole and the injection end outlet of the pouring nozzle (700) are smaller than 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310270539.8A CN116141590B (en) | 2023-03-20 | 2023-03-20 | Novel pouring gate structure for ice chest lining opening injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310270539.8A CN116141590B (en) | 2023-03-20 | 2023-03-20 | Novel pouring gate structure for ice chest lining opening injection mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116141590A true CN116141590A (en) | 2023-05-23 |
| CN116141590B CN116141590B (en) | 2024-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310270539.8A Active CN116141590B (en) | 2023-03-20 | 2023-03-20 | Novel pouring gate structure for ice chest lining opening injection mold |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008036886A (en) * | 2006-08-02 | 2008-02-21 | Sharp Corp | Injection molding machine |
| CN206416463U (en) * | 2016-12-17 | 2017-08-18 | 台州市黄岩伟多塑料模具厂 | It is easy to the injection mold of the stable abjection of product |
| CN110239017A (en) * | 2019-05-31 | 2019-09-17 | 太仓市天丝利塑化有限公司 | A kind of high-performance electric appliance panel assembly and its production Shooting Technique |
| CN214521612U (en) * | 2020-12-31 | 2021-10-29 | 余姚市锐麒电子有限公司 | Automobile part injection mold capable of preventing injection molding particles from flowing to surface of diaphragm |
| CN217293252U (en) * | 2021-12-13 | 2022-08-26 | 台州稳得福塑模有限公司 | Large-size narrow-edge refrigerator sliding door lining opening injection mold |
-
2023
- 2023-03-20 CN CN202310270539.8A patent/CN116141590B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008036886A (en) * | 2006-08-02 | 2008-02-21 | Sharp Corp | Injection molding machine |
| CN206416463U (en) * | 2016-12-17 | 2017-08-18 | 台州市黄岩伟多塑料模具厂 | It is easy to the injection mold of the stable abjection of product |
| CN110239017A (en) * | 2019-05-31 | 2019-09-17 | 太仓市天丝利塑化有限公司 | A kind of high-performance electric appliance panel assembly and its production Shooting Technique |
| CN214521612U (en) * | 2020-12-31 | 2021-10-29 | 余姚市锐麒电子有限公司 | Automobile part injection mold capable of preventing injection molding particles from flowing to surface of diaphragm |
| CN217293252U (en) * | 2021-12-13 | 2022-08-26 | 台州稳得福塑模有限公司 | Large-size narrow-edge refrigerator sliding door lining opening injection mold |
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| Publication number | Publication date |
|---|---|
| CN116141590B (en) | 2024-07-26 |
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