CN218083696U - Die cavity bottom, die cavity structure and injection die - Google Patents
Die cavity bottom, die cavity structure and injection die Download PDFInfo
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- CN218083696U CN218083696U CN202222426105.6U CN202222426105U CN218083696U CN 218083696 U CN218083696 U CN 218083696U CN 202222426105 U CN202222426105 U CN 202222426105U CN 218083696 U CN218083696 U CN 218083696U
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Abstract
A mold cavity bottom comprising a mold cavity bottom body; the middle part of the die cavity bottom body is provided with an inner cavity; a cooling channel surrounding the inner cavity is arranged in the die cavity bottom body; be provided with a water conservancy diversion structure on the outer peripheral face of mould chamber bottom body, the water conservancy diversion structure is including concave position, intercommunicating pore and interval portion, concave position is formed along radial inside extension by partial outer peripheral face, the intercommunicating pore is located concave position's bottom, the intercommunicating pore along radially extending and with the cooling channel intercommunication, the interval portion blocks partial intercommunicating pore at least in week, the free end of interval portion with concave position's lateral wall interval forms the guide slot, and partly flows in the intercommunicating pore after encircleing transition cooling channel along the clockwise, and another part flows in the intercommunicating pore after encircleing transition cooling channel along the counter-clockwise, guarantees that transition cooling channel has even, ideal cooling effect.
Description
Technical Field
The utility model belongs to the technical field of the injection mould, concretely relates to die cavity end, die cavity structure and injection mould.
Background
At current die cavity structure, because do not block or the interval between the delivery port of die cavity and the inlet opening at the bottom of the die cavity, consequently flow to transition cooling channel's cooling fluid from the delivery port, most can be directly through the axial inflow inlet opening that goes into in the position of recessing, only the minority can encircle behind the transition cooling channel through the axial inflow inlet opening that goes into in the position of recessing, can cluster water between the inlet opening at the bottom of delivery port of die cavity and the die cavity promptly, lead to transition cooling channel to have the uneven and not good problem of cooling effect of cooling off.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a die cavity bottom, die cavity structure and injection mold.
The utility model provides a technical scheme that its technical problem adopted is:
a mold cavity bottom comprising a mold cavity bottom body; the middle part of the die cavity bottom body is provided with an inner cavity; a cooling channel surrounding the inner cavity is arranged in the die cavity bottom body; the die cavity comprises a die cavity bottom body and is characterized in that a flow guide structure is arranged on the outer peripheral surface of the die cavity bottom body and comprises a concave position, a communication hole and a spacing part, wherein part of the outer peripheral surface of the concave position extends inwards along the radial direction, the communication hole is formed in the bottom of the concave position and extends along the radial direction and is communicated with a cooling channel, the spacing part at least blocks part of the communication hole in the circumferential direction, and the free end of the spacing part and the side wall of the concave position form a guide groove at an interval.
The utility model discloses in, the inner chamber includes die cavity end profile, pouring channel and the die cavity injection section that sets gradually along the axial, this body at the bottom of the die cavity corresponds the terminal surface of die cavity end profile is first terminal surface, flange at the bottom of the die cavity has on the first terminal surface.
In the present invention, the partition portion is formed by being recessed near one side of the communication hole and extending in the circumferential direction.
The utility model discloses in, be provided with the outlet on the outer peripheral face of die cavity bottom body, the outlet along radially extending and with cooling channel communicates.
At the bottom of the die cavity that the aforesaid provided, the utility model also provides a die cavity structure, at the bottom of die cavity and foretell die cavity, install at the bottom of the die cavity the end of die cavity.
In the utility model, the die cavity comprises a die body, a cavity is arranged in the die body, and a reinforcing rib is arranged on the outer side wall of the die body; the outer side wall of the die body and the reinforcing ribs form a cooling flow channel, the head end of the cooling flow channel is provided with an inflow port, and the tail end of the cooling flow channel is provided with an outflow port.
In the present invention, the mold body includes a mold cavity flange outwardly protruding from an end surface of the outflow port; the cavity bottom flange abuts the cavity flange, and the cavity bottom molding surface engages the cavity to define a bottom surface and at least a portion of a side surface of the blank.
The utility model discloses in, form transition cooling channel between the terminal ring section of first terminal surface, die cavity bottom flange, die cavity flange, strengthening rib, the egress opening with transition cooling channel intercommunication, guide slot and transition cooling channel intercommunication.
In the utility model, the communication hole is staggered with the outflow port in the axial direction, and the staggered angle in the clockwise direction is 60-120 degrees or 240-300 degrees.
Based on the die cavity structure that the aforesaid provided, the utility model also provides an injection mould, including a plurality of mold core structures and foretell die cavity structure, mold core structure and die cavity structure one-to-one, mold core structure and die cavity structure are through configuration at least injecteing partial one-tenth die cavity.
The utility model has the advantages that: the spacer plays the separation effect to the coolant in the transition cooling channel, and the cooling fluid who flows out from the egress opening can not directly flow into the intercommunicating pore, and can form the reposition of redundant personnel in transition cooling channel, and partly flows into the intercommunicating pore after encircleing transition cooling channel along clockwise, and another part flows into the intercommunicating pore after encircleing transition cooling channel along counter-clockwise, guarantees that transition cooling channel has even, ideal cooling effect.
Drawings
The invention will be further explained with reference to the drawings and the embodiments below:
FIG. 1 is a schematic structural view of an injection mold according to the present embodiment;
FIG. 2 is a schematic view of the internal structure of the cavity bottom according to the present embodiment;
FIG. 3 is a schematic structural view of a cooling channel according to the present embodiment;
fig. 4 is a schematic structural diagram of the cavity bottom in the present embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.
Example (b):
as shown in fig. 1 to 4, the present embodiment discloses a mold cavity bottom, which comprises a mold cavity bottom body 1; the middle part of the die cavity bottom body 1 is provided with an inner cavity 2; a cooling channel 3 surrounding the inner cavity 2 is arranged in the die cavity bottom body 1; the inner cavity 2 comprises a die cavity bottom molding surface 21, a pouring channel 22 and a die cavity injection section 23 which are sequentially arranged along the axial direction, wherein the die cavity bottom molding surface 21 is used for limiting the bottom molding of a blank body, the pouring channel 22 is used for communicating the die cavity bottom molding surface 21 with the die cavity injection section 23, and the die cavity injection section 23 is used for connecting a nozzle of an injection machine to inject plastic materials; the end face of the die cavity bottom body 1 corresponding to the die cavity bottom forming surface 21 is a first end face 11, and a die cavity bottom flange 12 is arranged on the first end face 11; the outer circumferential surface of the die cavity bottom body 1 is provided with a flow guide structure 4, the flow guide structure 4 comprises a concave position 41, a communication hole 42 and a spacing part 43, the concave position 41 is formed by extending part of the outer circumferential surface inwards along the radial direction, preferably, the circumferential length is greater than the axial length, and the circumferential length is 1.5-2.5 times of the axial length; a communication hole 42 is provided at the bottom of the recessed portion 41, the communication hole 42 extending in the radial direction and communicating with the cooling passage 3, and preferably, the communication hole 42 is provided near one side of the recessed portion 41; the spacing part 43 extends from one side of the recessed position 41 along the circumferential direction of the die cavity bottom body 1, the spacing part 43 at least blocks part of the communication hole 42 in the axial direction, the free end of the spacing part 43 and the side wall of the recessed position 41 form a guide groove 44 at a spacing, so that at least part of the cooling fluid enters the recessed position 41 through the guide groove 44 and then reversely flows into the communication hole 42 along the circumferential direction, and preferably, the spacing part 43 extends from one side of the recessed position 41 close to the communication hole 42 along the circumferential direction; preferably, the spacer 43 completely blocks the communication hole 42 in the circumferential direction. Preferably, the outer side surfaces of the spacers 43 distributed circumferentially are coplanar with the first end surface 11. And the outer peripheral surface of the other side of the die cavity bottom body 1 is provided with an outflow hole 5, and the outflow hole 5 extends along the radial direction and is communicated with the cooling channel 3.
Based on the mold cavity bottom disclosed by the embodiment, the embodiment also discloses a mold cavity structure, which comprises a mold cavity and the mold cavity bottom, wherein the mold cavity comprises a mold body 6, a cavity is arranged in the mold body 6, and a reinforcing rib 61 is arranged on the outer side wall of the mold body 6; the outer side wall of the die body 6 and the reinforcing ribs 61 form a cooling flow channel 62, the head end of the cooling flow channel 62 is provided with an inflow port, and the tail end of the cooling flow channel 62 is provided with an outflow port 621; the mold body 6 includes a cavity flange 63 projecting outwardly from the end face of the outlet 621; the die cavity bottom is arranged at the tail end of the die cavity, the die cavity bottom flange 12 abuts against the die cavity flange 63, and the die cavity bottom forming surface 21 is combined with the die cavity to limit the bottom surface and at least part of the side surface of the blank body; a transitional cooling channel 7 is formed among the first end surface 11, the die cavity bottom flange 12, the die cavity flange 63 and the ring section at the tail end of the reinforcing rib 61; the communication hole 42 is offset from the outlet 621 by a certain angle in the clockwise direction, the angle being 60 to 120 degrees or 240 to 300 degrees, preferably 90, 270 degrees. The outflow port 621 communicates with the transition cooling passage 7, and the guide groove 44 communicates with the transition cooling passage 7.
In an embodiment, the coolant flows into the cooling channel 62 through the inlet, flows through the cooling channel 62, and then flows into the transition cooling channel 7 through the outlet 621; the partition 43 blocks the cooling fluid in the transition cooling channel 7, the coolant flowing out from the outflow hole 621 does not directly flow into the communication hole 42, but forms a split flow in the transition cooling channel 7, a part of the coolant flows into the communication hole 42 through the guide groove 44 and the recessed portion 41 after surrounding the transition cooling channel 7 in the clockwise direction, and the other part of the coolant flows into the communication hole 42 through the guide groove 44 and the recessed portion 41 after surrounding the transition cooling channel 7 in the counterclockwise direction, so that the transition cooling channel 7 is ensured to have a uniform and ideal cooling effect.
Based on the mold cavity structure disclosed in the above embodiment, the embodiment also discloses an injection mold, which comprises a plurality of mold core structures and mold cavity structures corresponding to the mold core structures one to one, wherein the mold core structures and the mold cavity structures are configured to at least limit part of the molding cavities.
The above description is only the preferred embodiment of the present invention, and the technical solutions of the objects of the present invention are all within the protection scope of the present invention as long as the objects are achieved by the substantially same means.
Claims (10)
1. A mold cavity bottom, comprising: comprises a die cavity bottom body; the middle part of the die cavity bottom body is provided with an inner cavity; a cooling channel surrounding the inner cavity is arranged in the die cavity bottom body; the die cavity comprises a die cavity bottom body and is characterized in that a flow guide structure is arranged on the outer peripheral surface of the die cavity bottom body and comprises a concave position, a communication hole and a spacing part, wherein part of the outer peripheral surface of the concave position extends inwards along the radial direction to form the concave position, the communication hole is formed in the bottom of the concave position, the communication hole extends along the radial direction and is communicated with a cooling channel, the spacing part at least blocks part of the communication hole in the circumferential direction, and the free end of the spacing part and the side wall of the concave position form a guide groove at an interval.
2. A mold cavity bottom according to claim 1, wherein: the inner cavity comprises a die cavity bottom molding surface, a pouring channel and a die cavity injection section which are sequentially arranged along the axial direction, the end surface of the die cavity bottom body corresponding to the die cavity bottom molding surface is a first end surface, and a die cavity bottom flange is arranged on the first end surface.
3. A mold cavity bottom according to claim 1, wherein: the spacer extends in the circumferential direction from a side of the recessed portion close to the communication hole.
4. A mold cavity bottom according to claim 1, wherein: and the outer peripheral surface of the die cavity bottom body is provided with outflow holes, and the outflow holes extend along the radial direction and are communicated with the cooling channel.
5. A mold cavity structure, characterized by: comprising a mold cavity and a mold cavity bottom according to any one of claims 1-4, said mold cavity bottom being mounted at the end of said mold cavity.
6. A mold cavity structure according to claim 5, wherein: the die cavity comprises a die body, a cavity is arranged in the die body, and a reinforcing rib is arranged on the outer side wall of the die body; the outer side wall of the die body and the reinforcing ribs form a cooling flow channel, the head end of the cooling flow channel is provided with an inflow port, and the tail end of the cooling flow channel is provided with an outflow port.
7. A mold cavity structure according to claim 6, wherein: the die body comprises a die cavity flange protruding outwards from the end surface of the flow outlet; the cavity bottom flange abuts the cavity flange, and the cavity bottom molding surface engages the cavity to define a bottom surface and at least a portion of a side surface of the blank.
8. A mold cavity structure as defined in claim 7, wherein: and a transition cooling channel is formed among the first end face, the die cavity bottom flange, the die cavity flange and the ring segment at the tail end of the reinforcing rib, the outflow port is communicated with the transition cooling channel, and the guide groove is communicated with the transition cooling channel.
9. A mold cavity structure as defined in claim 7, wherein: the communicating hole is staggered with the outflow opening in the axial direction, and the staggered angle is 60-120 degrees or 240-300 degrees along the clockwise direction.
10. An injection mold, characterized in that: comprising a number of core structures and cavity structures as claimed in any of claims 5 to 9, the core structures corresponding one to the cavity structures, the core structures and cavity structures being arranged to define at least part of the forming cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222426105.6U CN218083696U (en) | 2022-09-13 | 2022-09-13 | Die cavity bottom, die cavity structure and injection die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222426105.6U CN218083696U (en) | 2022-09-13 | 2022-09-13 | Die cavity bottom, die cavity structure and injection die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218083696U true CN218083696U (en) | 2022-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222426105.6U Active CN218083696U (en) | 2022-09-13 | 2022-09-13 | Die cavity bottom, die cavity structure and injection die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218083696U (en) |
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2022
- 2022-09-13 CN CN202222426105.6U patent/CN218083696U/en active Active
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