CN212472272U - Injection mold die inner cutting water gap structure - Google Patents
Injection mold die inner cutting water gap structure Download PDFInfo
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- CN212472272U CN212472272U CN202020689700.7U CN202020689700U CN212472272U CN 212472272 U CN212472272 U CN 212472272U CN 202020689700 U CN202020689700 U CN 202020689700U CN 212472272 U CN212472272 U CN 212472272U
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Abstract
The utility model relates to the field of molds, in particular to an injection mold in-mold gate cutting structure, which comprises a glue inlet, an upper mold and a lower mold, wherein the opposite surfaces of the upper mold and the lower mold are respectively provided with an upper mold cavity and a lower mold cavity, the upper mold cavity and the lower mold cavity jointly form an injection mold cavity, the side of the injection mold cavity is provided with a water cavity, the water cavity is communicated with the injection mold cavity through a connecting cavity, the glue inlet is communicated with the water cavity through an injection pipeline, the injection mold cavity is sleeved with a cutter sleeve, the side wall of the cutter sleeve is provided with a chute, a cutter is sleeved in the cutter sleeve in a sliding way, the cutter is connected with the inner wall of the cutter sleeve through an elastic piece, a movable boss is fixedly arranged on the cutter, the movable boss extends out of the cutter sleeve through the chute and is connected with the chute of the cutter sleeve in a sliding way, the, solve artifical excision stub bar with this and waste time and energy, the problem of inefficiency moreover, the utility model discloses mainly used injection molding factory.
Description
Technical Field
The utility model relates to a mould field, concretely relates to injection mold mould inner cutting mouth of a river structure.
Background
Present plastics are mostly formed by injection molding, in the process of moulding plastics, need set up into jiao kou on the mould, should advance jiao kou and die cavity intercommunication, be used for injecting into fused plastic material in to the die cavity, fused plastic material gets into the die cavity and forms the product, the mouth of the molten plastic material's that corresponds on the product entering is the mouth of a river, in order to guarantee the efficiency of moulding plastics, save manufacturing cost, a plurality of die cavities can be designed on injection mold generally, adopt a plurality of jiao kou that advance, this just makes injection molding product have the mouth of a river on the working of plastics after the completion of moulding plastics, after product molding, need open the mould earlier and take out the product, the product links together with the mouth of a river this moment, then be fixed in product and mouth of a river and carry out the excision of stub bar on the special.
However, when the stub bar is cut off, the stub bar is usually manually cut off, and due to differences among individuals, the position of the cut-off stub bar is prone to deviation, so that defective products in a certain proportion can appear on the products, manual operation is labor-consuming and labor-consuming, efficiency is low, and a special jig is required to be adopted, so that economic benefits are affected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an injection mold mould internal cutting mouth of a river structure solves artifical excision stub bar and wastes time and energy, the problem of inefficiency moreover.
In order to solve the technical problem, the utility model discloses a basic scheme as follows:
the injection mold in-mold water gap cutting structure comprises a glue inlet, an upper mold and a lower mold, wherein an upper mold cavity and a lower mold cavity are respectively arranged on the opposite surfaces of the upper mold and the lower mold, the upper mold cavity and the lower mold cavity jointly form an injection mold cavity, a water cavity is arranged beside the injection mold cavity, the water cavity is communicated with the injection mold cavity through a connecting cavity, and the glue inlet is communicated with the water cavity through an injection pipeline;
the injection mould chamber has cup jointed the cutter cover, has seted up the spout on the cutter cover lateral wall, and has slided to cup jointed the cutter in the cutter cover, and the cutter passes through the elastic component with the cutter cover inner wall and is connected, still fixedly on the cutter to be equipped with the removal boss, and the removal boss stretches out the cutter cover and in the spout sliding connection of cutter cover through the spout, go up the mould and still be equipped with on the one side of lower mould and be used for promoting to remove the gliding promotion boss in the spout of boss, and promote the boss and remove the relative setting of boss.
The cutting knife is sleeved on the injection molding die cavity, and when the stub bar of the water gap needs to be cut off, the stub bar of the water gap can be cut off just at the position of the cutting knife. And because be fixed with the removal boss on the cutter, go up the fixed promotion boss that is equipped with on the mould, when moulding plastics, it folds to go up mould and lower mould, the promotion boss of going up the mould this moment contacts with the removal boss on the cutter gradually, thereby promote the removal boss and slide, and then drive cutter compression elastic component, make the cutter part withdrawal cutter cover that stretches out the cutter cover, and the cutter part in the withdrawal cutter cover can be amputated the stub bar of water gap department just, consequently when last mould and lower mould separation take out the plastic material after the shaping, promote the boss and remove the boss and keep away from gradually, the elastic component loses the pressure that promotes the boss and just can pop out the cutter, thereby cut off the stub bar of water gap department fast, it wastes time and energy to solve artifical excision stub bar, and the problem of inefficiency.
Further, promote the boss and remove the boss and be the wedge, and the closed angle department that promotes the boss sets up with the inclined plane of removing the boss relatively, and promotes the boss and can follow the inclined plane relative slip of removing the boss with the contact department of removing the boss.
Because the promotion boss is located and is gone up the mould, consequently when going up mould and lower mould and folding, the closed angle department that promotes the boss just can support on the inclined plane that removes the boss, and simultaneously under the thrust effect that promotes the boss and last, the removal boss will promote the boss relatively and slide to just can drive the cutter and slide in the cutter cover, the closed angle department that utilizes the promotion boss offsets with the inclined plane that removes the boss, is favorable to promoting the boss and promotes the removal boss and slide in the spout of cutter cover.
Further, promote the boss and remove the boss and be the wedge, and the inclined plane that promotes the boss sets up with the closed angle department of removing the boss relatively, and removes the boss and can follow the inclined plane relative slip that promotes the boss with promoting boss contact department.
The inclined plane that promotes the boss sets up with the closed angle department of removing the boss relatively, and when last mould and lower mould were foldd, the inclined plane that promotes the boss offseted with the closed angle department of removing the boss, is favorable to promoting the boss and promotes to remove the boss and slide in the spout of cutter cover.
Further, the pushing boss and the moving boss are both cylindrical, and the axes of the pushing boss and the moving boss are parallel and arranged in a staggered mode.
Will promote the boss and all set up to cylindric with removing the boss, when last mould and lower mould fold, the face of cylinder that promotes the boss and remove the boss is close to each other, offsets together with the mode of line contact at last, because the axis parallel of the two and dislocation set, consequently when promoting the boss and continuously oppress the removal boss, it will drive the cutter and slide in the cutter cover to remove the boss and receive the extrusion to in retrieving the cutter cover with the cutter, the cutter blocks the passageway in die cavity and the water oral cavity of moulding plastics when avoiding moulding plastics.
Furthermore, a first roller is arranged at the sharp corner of the pushing boss.
Furthermore, a second roller is arranged at the sharp corner of the movable boss.
Through the roller, when the movable lug boss is abutted to the pushing lug boss, the friction force between the pushing lug boss and the movable lug boss can be reduced, and the relative sliding between the two is easier.
Drawings
FIG. 1 is a schematic structural view of a first embodiment of an in-mold cutting gate structure of an injection mold of the present invention;
FIG. 2 is a schematic structural view of an upper mold and a lower mold of an embodiment of the inner cutting gate structure of the injection mold of the present invention;
FIG. 3 is a schematic view of a partial structure of a first embodiment of a mold inner cutting gate structure of the injection mold of the present invention;
fig. 4 is a top view of a lower mold of a first embodiment of the first mold inner cutting gate structure of the injection mold of the present invention;
FIG. 5 is an enlarged view of a partial structure of a first embodiment of a die inner cutting opening structure of the injection mold of the present invention;
FIG. 6 is an enlarged view of a pushing boss of a first embodiment of the inner cutting opening structure of the injection mold of the present invention;
FIG. 7 is a schematic view of a partial structure of a second embodiment of a mold inner cutting gate structure of the injection mold of the present invention;
fig. 8 is a schematic view of a partial structure of a third embodiment of the inner cutting gate structure of the injection mold of the present invention;
fig. 9 is a schematic view of the combination of the pushing boss and the moving boss of the third embodiment of the die inner cutting opening structure of the injection mold of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a glue inlet 1, an upper die 2, a lower die 3, a water gap cavity 4, a connecting cavity 5, a cutter 6, a cutter sleeve 7, a moving boss 8, a sharp corner 9 of a pushing boss, an inclined plane 10 of the moving boss, an inclined plane 11 of the pushing boss, a sharp corner 12 of the moving boss, a cylindrical moving boss 13 and a cylindrical pushing boss 14.
The first embodiment is as follows:
an embodiment substantially as described herein with reference to figures 1 to 6: injection mold mould internal cutting mouth of a river structure, including advancing jiao kou 1, go up mould 2 and lower mould 3, the bottom surface of going up mould 2 is equipped with four columniform die cavities of going up, the top surface of lower mould 3 is equipped with four columniform die cavities down, when last mould 2 and lower mould 3 fold, go up the die cavity and form columniform injection mold chamber jointly with the lower die cavity, injection mold chamber side has arranged the mouth of a river 4, mouth of a river chamber 4 and injection mold chamber are through connecting 5 intercommunications in the chamber, and advance jiao kou 1 through moulding plastics pipeline and mouth of a river chamber 4.
The injection mould intracavity has cup jointed cutter cover 7, the spout has been seted up on the cutter cover 7 lateral wall, and cutter 6 has been cup jointed in the cutter cover 7 slip, cutter 6 adopts thin blade, cutter 6 links together through spring (not shown in the figure) with cutter cover 7 inner wall, still fixed being equipped with on the lateral wall of cutter 6 removes boss 8, remove boss 8 and stretch out cutter cover 7 and in the spout sliding connection of cutter cover 7 through the spout, it still is equipped with the promotion boss that is used for promoting to remove boss 8 and slides in the spout to go up 2 bottom surfaces of mould, it is the wedge to promote boss and remove boss 8, and the closed angle department 9 that promotes the boss sets up with the inclined plane 10 that removes the boss relatively, and the closed angle department 9 that promotes the boss is equipped with first gyro wheel (not shown in the figure), promote boss and the inclined plane 10 relative slip that removes the boss can be followed.
It should be noted that, in order to ensure that the cutter 6 can cut off the stub bar of the nozzle cavity 4, the distance of relative sliding between the pushing boss and the moving boss 8 in this embodiment must be greater than or equal to the width of the nozzle cavity 4. Namely, if the width of the nozzle cavity 4 in this embodiment is I and the distance between the pushing boss and the moving boss 8 for relative sliding is L, L is required to be equal to or greater than I.
The specific implementation process is as follows:
when in injection molding, the upper die 2 and the lower die 3 are folded, and the sharp angle 9 of the pushing boss of the upper die 2 is gradually contacted with the inclined surface 10 of the moving boss on the cutting knife 6, so that by means of the inclination characteristic of the inclined edge at the sharp angle, when the upper die 2 and the lower die 3 are gradually closed, the sharp angle can generate thrust for pushing the movable lug boss 8, so as to push the movable lug boss 8 to slide, thereby driving the cutter 6 to compress the spring, causing the part of the cutter 6 extending out of the cutter sleeve 7 to retract into the cutter sleeve 7, and the part of the cutter 6 retracted into the cutter sleeve 7 can just cut off the stub bar at the water gap, so when the upper die 2 and the lower die 3 are separated to take out the molded plastic material, the pushing boss and the moving boss 8 are gradually far away, the cutting knife 6 can be ejected out when the spring loses the pressure of pushing the boss, thereby cut off the stub bar of water gap department fast, solve the artifical stub bar that amputates and waste time and energy, the inefficiency problem moreover.
Example two:
the second embodiment is different from the first embodiment in that: as shown in fig. 7, the inclined surface 11 of the pushing boss is disposed opposite to the sharp corner 12 of the moving boss, the contact portion of the moving boss and the pushing boss can slide along the inclined surface 11 of the pushing boss, and the sharp corner 12 of the moving boss is provided with a second roller (not shown).
The specific implementation process is as follows:
in this embodiment, when the upper mold 2 and the lower mold 3 are closed, the inclined surface 11 of the boss is pushed to abut against the sharp corner 12 of the moving boss, so that in the process of gradually closing the upper mold 2 and the lower mold 3, the inclined surface of the boss is pushed to generate thrust for pushing the moving boss, and the moving boss is pushed.
Example three:
the third embodiment is different from the second embodiment in that: as shown in fig. 8 and 9, the pushing boss and the moving boss are both cylindrical, and the cylindrical pushing boss 14 has a larger volume than the cylindrical moving boss 13, and the axes of the two are parallel and are arranged in a staggered manner.
The specific implementation process is as follows:
when going up mould 2 and lower mould 3 and closing up, the face of cylinder that promotes boss and removal boss is close to each other, offsets together with the mode of line contact at last, because the axis of the two is parallel and dislocation set, consequently when promoting the boss and continuously oppress the removal boss, the removal boss receives the extrusion and will drive cutter 6 and slide in cutter cover 7 to in retrieving cutter cover 7 with cutter 6, cutter 6 blocks the passageway of moulding plastics die cavity and mouth of a river chamber 4 when avoiding moulding plastics.
The above description is only for the embodiments of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the schemes, and some typical known structures or known methods should not become obstacles for those skilled in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims should be determined by the content of the claims, and the description of the specific embodiments and the like in the specification should be used for explaining the content of the claims.
Claims (6)
1. Injection mold mould internal cutting mouth of a river structure, including advancing jiao kou, going up mould and lower mould, its characterized in that: an upper die cavity and a lower die cavity are respectively arranged on the opposite surfaces of the upper die and the lower die, the upper die cavity and the lower die cavity jointly form an injection die cavity, a water cavity is arranged beside the injection die cavity, the water cavity is communicated with the injection die cavity through a connecting cavity, and the glue inlet is communicated with the water cavity through an injection pipeline;
the injection mould chamber has cup jointed the cutter cover, has seted up the spout on the cutter cover lateral wall, and has slided to cup jointed the cutter in the cutter cover, and the cutter passes through the elastic component with the cutter cover inner wall and is connected, still fixedly on the cutter to be equipped with the removal boss, and the removal boss stretches out the cutter cover and in the spout sliding connection of cutter cover through the spout, go up the mould and still be equipped with on the one side of lower mould and be used for promoting to remove the gliding promotion boss in the spout of boss, and promote the boss and remove the relative setting of boss.
2. The injection mold die inner cutting gate structure according to claim 1, characterized in that: promote the boss and remove the boss and be the wedge, and the closed angle department that promotes the boss sets up with the inclined plane of removing the boss relatively, and promotes the boss and can follow the inclined plane relative slip of removing the boss with the contact department of removing the boss.
3. The injection mold die inner cutting gate structure according to claim 1, characterized in that: promote the boss and remove the boss and be the wedge, and the inclined plane that promotes the boss sets up with the closed angle department of removing the boss relatively, and removes the boss and can follow the inclined plane relative slip that promotes the boss with promoting boss contact department.
4. The injection mold die inner cutting gate structure according to claim 1, characterized in that: the pushing boss and the moving boss are both cylindrical, and the axes of the pushing boss and the moving boss are parallel and arranged in a staggered mode.
5. The injection mold die inner cutting gate structure according to claim 2, characterized in that: and a first roller is arranged at the sharp corner of the pushing boss.
6. The injection mold die inner cutting gate structure according to claim 3, characterized in that: and a second roller is arranged at the sharp corner of the movable boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020689700.7U CN212472272U (en) | 2020-04-29 | 2020-04-29 | Injection mold die inner cutting water gap structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020689700.7U CN212472272U (en) | 2020-04-29 | 2020-04-29 | Injection mold die inner cutting water gap structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212472272U true CN212472272U (en) | 2021-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020689700.7U Active CN212472272U (en) | 2020-04-29 | 2020-04-29 | Injection mold die inner cutting water gap structure |
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| Country | Link |
|---|---|
| CN (1) | CN212472272U (en) |
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- 2020-04-29 CN CN202020689700.7U patent/CN212472272U/en active Active
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