CN217968091U - Detachable combined and changeable filling nozzle and injection mold thereof - Google Patents
Detachable combined and changeable filling nozzle and injection mold thereof Download PDFInfo
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- CN217968091U CN217968091U CN202222384464.XU CN202222384464U CN217968091U CN 217968091 U CN217968091 U CN 217968091U CN 202222384464 U CN202222384464 U CN 202222384464U CN 217968091 U CN217968091 U CN 217968091U
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Abstract
The utility model discloses a filling nozzle of dismantled and assembled combination transform and injection mold thereof. The filling nozzle comprises a main body structure and a movable joint matched with the main body structure. The main body structure is provided with an injection channel; two branch flow passages communicated with the injection passage are formed in the end face of the main body structure; the movable joint is a hollow cavity with openings at two ends, the movable joint is provided with a first end surface and a second end surface, the first end surface is provided with a four-branch flow channel, and the second end surface is provided with a filling part for filling the two-branch flow channel; the movable joint is fastened on the end surface of the main body structure through a fastening piece, the filling part is contained in the two branch flow passages, and the hollow cavity of the movable joint is communicated with the injection passage; wherein, the main structure is also sleeved with a gasket. The utility model discloses a dismantled and assembled combination transform irritate mouth and injection mold thereof carries out simple dismouting combination transform to original structure of irritating the mouth to obtain the reposition of redundant personnel runner of different quantity, in order to satisfy the user demand of mould.
Description
Technical Field
The utility model relates to an injection moulding technical field especially relates to a dismantled and assembled combination transform irritate mouth and injection mold thereof.
Background
The injection molding is to add the injection molding particles into a charging barrel of an injection molding machine, heat the injection molding particles to a molten state, enter a cavity of a mold through a nozzle and a filling nozzle of the mold under the rotation and the pushing of an injection molding screw, and cool and harden the molten injection molding material to obtain a finished product.
A common plastic injection molding mold is only provided with a set of fixed filling nozzles, however, sometimes the filling nozzles need to be replaced to have different flow dividing channels when molding is performed for different mold cavities in a common mold design.
How to carry out simple dismouting combination transform to the structure of original irritating mouth on the basis of saving the cost to obtain the reposition of redundant personnel runner of different quantity, in order to satisfy the user demand of mould, this is the technical problem who needs to solve.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the weak point among the prior art, providing a dismantled and assembled combination transform irritate mouth and injection mold thereof, carry out simple dismouting combination transform to original structure of irritating the mouth to obtain the reposition of redundant personnel runner of different quantity, with the user demand who satisfies the mould.
The purpose of the utility model is realized through the following technical scheme:
a removable combined and changeable filling nozzle comprises a main body structure and a movable joint matched with the main body structure;
the main body structure is provided with an injection channel;
two branch flow passages communicated with the injection passage are formed in the end face of the main body structure;
the movable joint is a hollow cavity with openings at two ends, the movable joint is provided with a first end face and a second end face, the first end face is provided with a four-branch flow passage, and the second end face is provided with a filling part for filling the two-branch flow passage;
the movable joint is fastened on the end face of the main body structure through a fastener, the filling part is contained in the two branch flow passages, and a hollow cavity of the movable joint is communicated with the injection passage;
wherein, the main structure is also sleeved with a gasket.
In one embodiment, the nozzle further comprises a sealing ring;
a positioning convex part is arranged on the second end face of the movable joint, and a positioning concave part matched with the positioning convex part is arranged on the end face of the main body structure;
the sealing ring is provided with a positioning through hole;
the sealing ring is positioned between the movable joint and the end face of the main body structure, the positioning convex part is arranged in the positioning through hole in a penetrating mode and is inserted into the positioning concave part, the sealing ring is extruded and deformed by the filling part to form a deformation part, and the deformation part seals a gap between the filling part and the two branch flow passages.
In one embodiment, the sealing ring is of a rubber construction.
In one of the embodiments, the first and second electrodes are,
the positioning convex part is of a cylindrical convex block structure, the positioning concave part is of a cylindrical groove structure, and the positioning through hole is of a circular through hole structure.
In one of the embodiments, the first and second electrodes are,
the positioning convex part is of an arc-shaped convex block structure, the positioning concave part is of an arc-shaped groove structure, and the positioning through hole is of an arc-shaped through hole structure.
In one embodiment, the first end face and the second end face of the movable joint are at a vertical distance H, the number of the gaskets is 1, the thickness of the gaskets is H, and H = H.
In one embodiment, the perpendicular distance between the first end face and the second end face of the movable joint is H, the number of the gaskets is n, and the thickness of each gasket is H/n.
An injection mold comprising: the mould body and the filling nozzle which can be assembled, disassembled, combined and changed;
the die body comprises a movable die assembly and a fixed die assembly matched with the movable die assembly, and a forming cavity is formed between the movable die assembly and the fixed die assembly;
the filling nozzle which can be disassembled, assembled and changed is arranged on the fixed die assembly, and the injection channel is communicated with the molding cavity.
In one embodiment, the main structure is further provided with an end cover plate, and the end cover plate is fastened on the fixed die assembly through a fastening bolt.
In one embodiment, the gasket is provided with a fastening through hole matched with the fastening bolt.
The utility model discloses a dismantled and assembled combination transform irritate mouth and injection mold thereof carries out simple dismouting combination transform to original structure of irritating the mouth to obtain the reposition of redundant personnel runner of different quantity, in order to satisfy the user demand of mould.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a structural diagram of an injection mold according to an embodiment of the present invention;
FIG. 2 is a block diagram of the nozzle shown in FIG. 1;
fig. 3 is an exploded view of a nozzle according to an embodiment of the present invention;
FIG. 4 is an exploded view (two) of the nozzle shown in FIG. 3;
FIG. 5 is a block diagram of the main structure of the nozzle shown in FIG. 3;
FIG. 6 is a block diagram of the movable joint of the nozzle of FIG. 3;
FIG. 7 is a block diagram (two) of the movable joint of the nozzle shown in FIG. 3;
fig. 8 is an exploded view (one) of a nozzle according to another embodiment of the present invention;
fig. 9 is an exploded view of a nozzle according to another embodiment of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, an injection mold 10 with a detachable and changeable filling nozzle comprises a mold body 20 and a filling nozzle 30 arranged on the mold body 20.
As shown in fig. 1, in the present invention, the mold body 20 includes a movable mold component 21 and a fixed mold component 22 engaged with the movable mold component 21, and a molding chamber is formed between the movable mold component 21 and the fixed mold component 22. The filling nozzle 30 which can be assembled and disassembled and changed is arranged on the fixed die assembly 22, and the injection channel 101 is communicated with the molding cavity.
As shown in fig. 2, the nozzle 30 includes a main body structure 100 and a movable joint 200 cooperating with the main body structure 100.
The body structure 100 has an injection passage 101 (shown in fig. 5). The injection molding particles are heated to a molten state, and enter a molding cavity of the mold body through the injection channel 101 under the rotation and the pushing of the injection molding screw, and the molten injection molding material is cooled and hardened to obtain a finished product.
As shown in fig. 3 and 4, two branch flow passages 110 penetrating the injection passage 101 are opened on the end surface of the main body structure 100.
As shown in fig. 3 and 4, the movable joint 200 is a hollow cavity with two open ends, the movable joint 200 has a first end surface 201 and a second end surface 202, the first end surface 201 is provided with a four-divided runner 210, and the second end surface 202 is provided with a filling part 220 (as shown in fig. 6 and 7) for filling the two-divided runner 110.
As shown in fig. 3 and 4, the movable joint 200 is fastened to the end surface of the main body structure 100 by a fastener 300, the filling portion 220 is accommodated in the two branch runners 110, and the hollow cavity of the movable joint 200 is communicated with the injection passage 101;
as shown in fig. 3 and 4, a gasket 400 is further sleeved on the main body structure 100.
The operation principle of the injection mold 10 with the above-described removable and replaceable filling nozzle assembly will be described below:
according to practical situations, when the current type of mold body 20 has four molding cavities and the four molding cavities in the mold body 20 need to be simultaneously injection molded, the movable joint 200 is mounted on one end surface of the main structure 100 through the fastener 300, and at this time, the filling portion 220 is received in the two runners 110 (i.e., the filling portion 220 blocks the two runners 110);
then, sleeving the gasket 400 on the main body structure 100, installing the filling nozzle 30 with the movable joint 200 on the mold body 20, wherein the four-divided runners 210 of the movable joint 200 correspond to the four molding cavities in the mold body 20 one by one respectively;
heating the injection molding particles to a molten state, entering four molding cavities of the mold body 20 through the injection channel 101 and the four-way runner 210 under the rotation and the pushing of an injection molding screw, and cooling and hardening the molten injection molding material to obtain a finished product;
similarly, according to practical situations, when the current type of mold body 20 has only two molding cavities, and the two molding cavities in the mold body 20 need to be injection molded, the movable joint 200 is detached from one end surface of the main structure 100, and meanwhile, the gasket 400 is also detached from the main structure 100;
then, the filling nozzle 30 with only the main structure 100 is installed on the mold body 20, and two sub-runners 110 on one end surface of the main structure 100 are respectively in one-to-one correspondence with two molding cavities in the mold body 20;
heating the injection molding particles to a molten state, entering two molding cavities of the mold body 20 through the injection channel 101 and the two branch runners 110 under the rotation and the pushing of the injection molding screw, and cooling and hardening the molten injection molding material to obtain a finished product;
therefore, the pouring nozzle 30 of the present invention can be adaptively assembled and disassembled according to actual conditions, so as to adapt to the mold bodies 20 having different numbers of molding cavities, and have higher compatibility, thereby greatly saving cost;
as shown in fig. 3 and 4, when the movable joint 200 needs to be mounted on one end face of the main body structure 100, it is necessary to adaptively sleeve the gasket 400 on the main body structure 100; when it is necessary to remove the movable joint 200 from one end surface of the main body structure 100, it is also necessary to adaptively remove the spacer 400 from the main body structure 100; therefore, the length of the part of the filling nozzle 30 inserted into the mold body is not changed, and the connection tightness is ensured.
As shown in fig. 3 and 4, the nozzle 30 further includes a sealing ring 500. In the present embodiment, the seal ring 500 is of a rubber structure.
As shown in fig. 3, 4, 6 and 7, the second end face 202 of the movable joint 200 is provided with a positioning protrusion 230, and the end face of the main structure 100 is provided with a positioning recess 120 engaged with the positioning protrusion 230.
As shown in fig. 3 and 4, the seal ring 500 is provided with a positioning through hole 510.
The sealing ring 500 is located between the movable joint 200 and the end surface of the main body structure 100, the positioning protrusion 120 is inserted into the positioning recess 120 by passing through the positioning through hole 510, and the sealing ring 500 is deformed by the filling part 220 to have a deformed part, which seals a gap between the filling part 220 and the two branched runners 110.
Through setting up sealing ring 500, can effectively fill the gap between the terminal surface of activity joint 200 and major structure 100, prevent to appear leaking the gluey phenomenon at the in-process of moulding plastics.
In the actual manufacturing process, the finished sealing ring 500 is a flat annular structure and does not have a deformation portion, and the deformation portion is generated by the extrusion deformation of the filling portion 220. If the seal ring 500 is required to have a deformed portion during the manufacturing process, the manufacturing difficulty and the manufacturing cost are high, which is not suitable for practical production.
Because the sealing ring 500 is extruded by the filling part 220 and deforms to form a deformation part, the sealing ring 500 needs to be positioned in the process of extruding the filling part 220, so that the sealing ring 500 is effectively prevented from shifting, and the sealing performance is ensured. Therefore, the second end face 202 of the movable joint 200 is provided with the positioning convex portion 230, the end face of the main body structure 100 is provided with the positioning concave portion 120 matched with the positioning convex portion 230, the sealing ring 500 is provided with the positioning through hole 510, and the positioning convex portion 120 penetrates through the positioning through hole 510 and is inserted into the positioning concave portion 120.
Embodiment one (as shown in FIG. 3 and FIG. 4)
The positioning protrusion 230 is a cylindrical protrusion, the positioning recess 120 is a cylindrical groove, and the positioning through hole 510 is a circular through hole.
This structure facilitates manufacturing, and the sealing ring 500 is easily torn during pressing due to the small contact area among the positioning protrusion 230, the positioning recess 120, and the positioning through hole 510.
EXAMPLE two (as shown in FIGS. 8 and 9)
The positioning protrusion 230 is an arc-shaped protrusion, the positioning recess 120 is an arc-shaped groove, and the positioning through hole 510 is an arc-shaped through hole.
The difficulty of processing and manufacturing the structure is large, and the contact area among the positioning convex part 230, the positioning concave part 120 and the positioning through hole 510 is large, so that the sealing ring 500 is not easy to tear in the process of being extruded.
When the movable joint 200 needs to be installed on one end face of the main body structure 100, the gasket 400 needs to be adaptively sleeved on the main body structure 100; when it is necessary to remove the movable joint 200 from one end surface of the main body structure 100, it is also necessary to adaptively remove the spacer 400 from the main body structure 100; therefore, the length of the part of the filling nozzle 30 inserted into the mold body is not changed, and the connection tightness is ensured. The number of shims 400 used is explained below:
example one
The first end face 201 and the second end face 202 of the movable joint 200 are at a vertical distance H, the number of the spacers 400 is 1, the thickness of the spacer 400 is H, and H = H.
Example two
The first end face 201 and the second end face 202 of the movable joint 200 are vertically spaced by a distance H, the number of the spacers 400 is n, and the thickness H/n of each spacer 400. By providing a plurality of shims 400, the thickness of each shim 400 is reduced accordingly, making it easier to purchase from the market.
As shown in FIGS. 3 and 4, the main body structure 100 is further provided with an end cover plate 130, and the end cover plate 130 is fastened to the stationary mold assembly 22 by fastening bolts 131. The spacer 400 is provided with a fastening through hole 401 engaged with the fastening bolt 131.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The detachable, combined and changeable filling nozzle is characterized by comprising a main body structure and a movable joint matched with the main body structure;
the main body structure is provided with an injection channel;
two sub-runners communicated with the injection channel are formed in the end face of the main body structure;
the movable joint is a hollow cavity with openings at two ends, the movable joint is provided with a first end face and a second end face, the first end face is provided with a four-branch flow passage, and the second end face is provided with a filling part for filling the two-branch flow passage;
the movable joint is fastened on the end surface of the main body structure through a fastening piece, the filling part is contained in the two branch flow passages, and a hollow cavity of the movable joint is communicated with the injection passage;
wherein, the main structure is also sleeved with a gasket.
2. The removable modular changeable mouthpiece of claim 1, further comprising a sealing ring;
a positioning convex part is arranged on the second end face of the movable joint, and a positioning concave part matched with the positioning convex part is arranged on the end face of the main body structure;
the sealing ring is provided with a positioning through hole;
the sealing ring is positioned between the movable joint and the end face of the main body structure, the positioning convex part is arranged in the positioning through hole in a penetrating mode and is inserted into the positioning concave part, the sealing ring is extruded and deformed by the filling part to form a deformation part, and the deformation part seals a gap between the filling part and the two branch flow channels.
3. A changeable combined pouring spout according to claim 2, wherein said sealing ring is of rubber construction.
4. A nozzle according to claim 2, characterized in that,
the positioning convex part is of a cylindrical convex block structure, the positioning concave part is of a cylindrical groove structure, and the positioning through hole is of a circular through hole structure.
5. A removable modular changeable nozzle according to claim 2,
the positioning convex part is of an arc-shaped convex block structure, the positioning concave part is of an arc-shaped groove structure, and the positioning through hole is of an arc-shaped through hole structure.
6. The removable modular changeable nozzle of claim 1, wherein the first end face and the second end face of the movable joint are vertically spaced by H, the number of the spacers is 1, the thickness of the spacers is H, and H = H.
7. The nozzle of claim 1, wherein the first end surface and the second end surface of the movable joint are vertically spaced by a distance H, the number of the spacers is n, and the thickness of each spacer is H/n.
8. An injection mold, comprising: a mold body, a removable modular nozzle according to any one of claims 1 to 7;
the die body comprises a movable die assembly and a fixed die assembly matched with the movable die assembly, and a forming cavity is formed between the movable die assembly and the fixed die assembly;
the filling nozzle which can be disassembled, assembled and changed is arranged on the fixed die assembly, and the injection channel is communicated with the molding cavity.
9. An injection mold according to claim 8, wherein an end cover plate is further provided on the main body structure, and the end cover plate is fastened to the fixed mold assembly through fastening bolts.
10. The injection mold of claim 9, wherein the gasket is provided with a fastening through hole matched with the fastening bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222384464.XU CN217968091U (en) | 2022-09-08 | 2022-09-08 | Detachable combined and changeable filling nozzle and injection mold thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222384464.XU CN217968091U (en) | 2022-09-08 | 2022-09-08 | Detachable combined and changeable filling nozzle and injection mold thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217968091U true CN217968091U (en) | 2022-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222384464.XU Active CN217968091U (en) | 2022-09-08 | 2022-09-08 | Detachable combined and changeable filling nozzle and injection mold thereof |
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| Country | Link |
|---|---|
| CN (1) | CN217968091U (en) |
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2022
- 2022-09-08 CN CN202222384464.XU patent/CN217968091U/en active Active
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