CN112793079A - Prevent that slitter edge from gluing injection mold center block structure of mould - Google Patents
Prevent that slitter edge from gluing injection mold center block structure of mould Download PDFInfo
- Publication number
- CN112793079A CN112793079A CN202110289064.8A CN202110289064A CN112793079A CN 112793079 A CN112793079 A CN 112793079A CN 202110289064 A CN202110289064 A CN 202110289064A CN 112793079 A CN112793079 A CN 112793079A
- Authority
- CN
- China
- Prior art keywords
- mold
- center block
- edge
- slitter edge
- block structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002347 injection Methods 0.000 title claims abstract description 22
- 239000007924 injection Substances 0.000 title claims abstract description 22
- 238000004026 adhesive bonding Methods 0.000 title claims description 3
- 239000002699 waste material Substances 0.000 claims abstract description 27
- 238000001746 injection moulding Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000012797 qualification Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- B29C45/2669—Moulds with means for removing excess material, e.g. with overflow cavities
-
- 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
- B29C45/1759—Removing sprues from sprue-channels
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses an injection mold center block structure for preventing waste edges from being adhered to a mold. The center block body outside the central main pouring channel in the injection mold center block structure for preventing the slitter edge from being adhered to the mold is provided with the slitter edge overflow edge, the slitter edge overflow edge reserves a space for the production of the slitter edge in the injection molding process, the slitter edge produced on the slitter edge overflow edge can be taken out along with the product, the product is removed in the later period, no slitter edge is remained on the mold, the damage of the mold is avoided, meanwhile, the charging barrel can not be damaged due to the reduction of the pressure received, the quality is not bad due to the residual waste, the mold is easier to maintain, the waste is prevented from being accumulated more and thicker, the mold cannot be closed, the service life of the mold is prolonged, and the qualification rate of the product is improved.
Description
Technical Field
The invention relates to the field of molds, in particular to a central block structure of an injection mold, which prevents waste edges from being adhered to the mold.
Background
An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification. The periphery of a flow channel of a common injection mold has waste edges left on the mold in the using process, so that the cleaning is troublesome, the waste edges are accumulated more and more, the mold cannot be closed, the pressure of a charging barrel is increased, and the charging barrel is crushed; the product reject ratio is increased and is high.
Disclosure of Invention
The invention provides a central block structure of an injection mold, which aims to solve the problems in the prior art and prevent the waste edge from being adhered to the mold.
The invention solves the technical problems through the following technical means:
the central block structure of the injection mold for preventing the slitter edge from being adhered to the mold comprises a central block body, wherein a plurality of central main pouring gates are uniformly arranged on the central block body, a plurality of branch pouring gates are arranged around the central main pouring gates, the central main pouring gates are connected with the branch pouring gates, a plurality of vacuum suction holes are formed in the central main pouring gates, vacuum suction holes are formed in the tail ends of the branch pouring gates, and the central block body on the outer side of the central main pouring gate is provided with a slitter edge overflow edge.
Preferably, the central block body is provided with a plurality of fixing holes, and the cross sections of the fixing holes are circular.
Preferably, the central part of the central main pouring channel is provided with an annular bulge.
Preferably, the number of the branch runners is four.
The depth of the overflow edge of the waste edge is preferably 2-3 mm.
The invention relates to an injection mold center block structure for preventing slitter edges from being bonded with a mold, wherein a slitter edge overflow edge is arranged on a center block body outside a center main pouring gate in the injection mold center block structure for preventing slitter edges from being bonded with the mold, a space is reserved for the slitter edge in the injection process, the slitter edge generated on the slitter edge overflow edge can be taken out along with a product, the slitter edge is removed from the product at the later stage, no slitter edge is remained on the mold, the damage of the mold is avoided, meanwhile, a charging barrel cannot be damaged due to the reduced pressure, the poor quality caused by the remained scraps cannot be caused, the mold is easier to maintain, the phenomenon that the mold cannot be closed due to the thicker the accumulated scraps cannot be caused, the service life of the mold is prolonged, and the qualification rate of the product is improved.
Drawings
FIG. 1 is a schematic structural diagram of a central block structure of an injection mold for preventing the waste edge from sticking to the mold according to the present invention;
FIG. 2 is a front view of a center block structure of an injection mold for preventing the waste edge from sticking to the mold according to the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
in the figure: 1. a center block body; 2. a fixing hole; 3. a central main runner; 4. an annular projection; 5. a branch pouring channel; 6. vacuum suction holes; 7. the waste edge overflows.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 3, an injection mold center block structure for preventing a waste edge from sticking to a mold includes a center block body 1, wherein a plurality of center main runners 3 are uniformly arranged on the center block body 1, a plurality of branch runners 5 are arranged around the center main runner 3, the center main runner 3 is connected with the branch runners 5, a plurality of vacuum suction holes 6 are arranged in the center main runner 3, vacuum suction holes 6 are arranged at the tail ends of the branch runners 5, a waste edge overflow edge 7 is arranged on the center block body 1 outside the center main runner 3, a plurality of fixing holes 2 are arranged on the center block body 1, the cross section of each fixing hole 2 is annular, an annular protrusion 4 is arranged in the middle of the center main runner 3, the number of the branch runners 5 is four, and the depth of the waste edge overflow edge 7 is 2-3 mm.
The invention relates to a central block structure of an injection mold for preventing waste edges from being adhered to the mold, wherein a waste edge overflow edge 7 is arranged on a central block body 1 at the outer side of a central main pouring gate 3 in the central block structure of the injection mold for preventing the waste edges from being adhered to the mold, a space is reserved for the generation of the waste edges in the injection molding process by the waste edge overflow edge 7, the waste edges generated on the waste edge overflow edge 7 can be taken out along with a product, the waste edges are removed from the product at the later stage, no waste edges remain on the mold, the damage of the mold is avoided, meanwhile, a charging barrel cannot be damaged due to the reduction of the pressure, the quality is not bad due to the residual waste materials, the mold is easier to maintain, the phenomenon that the mold cannot be closed due to the fact that the waste materials are more accumulated and thicker is avoided, the service life of the mold.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a prevent that slitter edge from gluing injection mold center block structure of mould, includes center block body (1), its characterized in that: the center block is characterized in that a plurality of center main runners (3) are uniformly arranged on the center block body (1), a plurality of branch runners (5) are arranged on the periphery of the center main runner (3), the center main runner (3) is connected with the branch runners (5), a plurality of vacuum suction holes (6) are formed in the center main runner (3), the tail ends of the branch runners (5) are provided with the vacuum suction holes (6), and a waste edge overflow edge (7) is arranged on the center block body (1) on the outer side of the center main runner (3).
2. An injection mold center block structure for preventing the slitter edge from sticking to the mold according to claim 1, wherein: the center block body (1) is provided with a plurality of fixing holes (2), and the cross sections of the fixing holes (2) are circular.
3. An injection mold center block structure for preventing the slitter edge from sticking to the mold according to claim 2, wherein: and an annular bulge (4) is arranged in the middle of the central main pouring gate (3).
4. An injection mold center block structure for preventing the slitter edge from sticking to the mold according to claim 2, wherein: the number of the branch pouring channels (5) is four.
5. An injection mold center block structure for preventing the slitter edge from sticking to the mold according to claim 1, wherein: the depth of the waste edge overflow edge (7) is 2-3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110289064.8A CN112793079A (en) | 2021-03-18 | 2021-03-18 | Prevent that slitter edge from gluing injection mold center block structure of mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110289064.8A CN112793079A (en) | 2021-03-18 | 2021-03-18 | Prevent that slitter edge from gluing injection mold center block structure of mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112793079A true CN112793079A (en) | 2021-05-14 |
Family
ID=75817132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110289064.8A Pending CN112793079A (en) | 2021-03-18 | 2021-03-18 | Prevent that slitter edge from gluing injection mold center block structure of mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112793079A (en) |
-
2021
- 2021-03-18 CN CN202110289064.8A patent/CN112793079A/en active Pending
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