CN210791925U - Secondary inclined ejection mechanism of injection mold - Google Patents
Secondary inclined ejection mechanism of injection mold Download PDFInfo
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- CN210791925U CN210791925U CN201921220185.1U CN201921220185U CN210791925U CN 210791925 U CN210791925 U CN 210791925U CN 201921220185 U CN201921220185 U CN 201921220185U CN 210791925 U CN210791925 U CN 210791925U
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- guide hole
- end guide
- ejector rod
- rear end
- injection mold
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Abstract
The utility model discloses a secondary inclined ejection mechanism of an injection mold, which comprises a movable mold, the secondary inclined ejection mechanism comprises a secondary ejector rod which is obliquely arranged relative to a primary ejection direction, the large cap ejector block is provided with a front end guide hole which is used for secondary ejection of an injection molding piece and obliquely arranged relative to the primary ejection direction, a cantilever type insert is connected onto the large cap ejector block and inserted into the clearance channel, the cantilever type insert is provided with a rear end guide hole which is obliquely arranged relative to the primary ejection direction, the front end of the secondary ejector rod penetrates into the front end guide hole and the rear end guide hole in sequence, the excircle of the secondary ejector rod is respectively in sliding fit with the front end guide hole and the rear end guide hole, and the rear end of the secondary ejector rod is connected with a secondary push plate. The utility model provides high secondary ejection mechanism's stability, extension injection mold's life.
Description
Technical Field
The utility model relates to the technical field of mold, concretely relates to injection mold's secondary pushes up mechanism to one side.
Background
An injection mold is a mold for plastic injection molding. Since the injection molded part needs to be released from the mold after being molded, the general injection mold is provided with an ejection mechanism. When the injection molding part is special in the current situation, after one-time ejection, the injection molding part still possibly remains in the mold cavity or cannot automatically fall off, an ejection-twice mechanism needs to be added to perform ejection-twice on the injection molding part so as to realize complete disengagement of the injection molding part.
The secondary ejection mechanism in the prior art comprises an oblique ejector rod, the front end of the oblique ejector rod penetrates through a longer section of clearance channel on a movable die and is connected with a guide hole formed in a large cap ejector block for primary ejection of an injection molding part in a sliding mode, the tail end of the oblique ejector rod is connected with a secondary ejection plate, the primary ejection of the injection molding part is performed through the large cap ejector block by the primary ejection mechanism during demolding, and the secondary ejection of the injection molding part is realized through the oblique ejector rod which enters and exits along the guide hole by the secondary ejection mechanism.
The secondary ejection mechanism in the prior art has the following problems in use: because the distance between big block kicking block and the quadratic term push board is great for the length of oblique ejector pin is also longer, poor stability when leading to the quadratic term push, and oblique ejector pin is out of shape easily, has reduced injection mold's life from this, has also influenced the quality of injection molding simultaneously.
Therefore, it is necessary to improve the stability of the secondary ejection mechanism by structural improvement on the basis of the existing injection mold structure.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an injection mold's secondary pushes up mechanism to one side aims at improving secondary ejection mechanism's stability, prolongs injection mold's life to improve the quality of moulding plastics. The specific technical scheme is as follows:
a secondary inclined ejection mechanism of an injection mold comprises a movable mold, a large cap ejector block arranged on the movable mold and used for primary ejection of an injection molding piece, and a clearance channel arranged on the movable mold, connected with the large cap ejector block and parallel to the primary ejection direction of the injection molding piece, wherein the secondary inclined ejection mechanism comprises a secondary ejector rod obliquely arranged relative to the primary ejection direction, a front end guide hole obliquely arranged relative to the primary ejection direction and used for secondary ejection of the injection molding piece is arranged on the large cap ejector block, a cantilever type insert is connected onto the large cap ejector block and inserted into the clearance channel, a rear end guide hole obliquely arranged relative to the primary ejection direction is arranged on the cantilever type insert, the front end guide hole and the rear end guide hole are coaxial, the front end of the secondary ejector rod sequentially penetrates into the front end guide hole and the rear end guide hole, and the secondary ejector rod The outer circle of the secondary ejector rod is respectively matched with the front end guide hole and the rear end guide hole in a sliding mode, and the rear end of the secondary ejector rod is connected with the secondary push plate.
Among the above-mentioned technical scheme, through connecting the mold insert of cantilever type on big block kicking block, and insert the mold insert of cantilever type in the clearance passageway for can set up longer rear end guiding hole on the mold insert of cantilever type, secondary ejector pin and rear end guiding hole and the preceding end guiding hole on the big block kicking block are sliding fit simultaneously, and the preceding back position of secondary ejector pin all has the support of guiding hole like this, thereby has increased substantially the stability of secondary ejector pin, and the secondary ejector pin is difficult to warp and crooked, has prolonged injection mold's life from this, and has improved the quality of moulding plastics.
Preferably, the clearance-avoiding channel is parallel to the one-time ejection direction of the injection molding piece, and a clearance-avoiding gap is arranged between the cantilever type insert and the clearance-avoiding channel.
The clearance channel is parallel to the one-time ejection direction of the injection molding piece, so that the interference of the cantilever type insert in the ejection process can be effectively avoided.
Preferably, the insert is cylindrical, and the clearance passage is a cylindrical hole.
The insert adopts the structure that the cylindrical shaft and the clearance passage adopt the cylindrical hole, so that the processing technology of the die can be simplified, and the manufacturing cost of the die is reduced.
Preferably, the big cap ejector block is provided with a front guide sleeve, and the front guide sleeve is provided with the front end guide hole.
Preferably, a rear guide sleeve is arranged on the cantilever type insert, and the rear guide sleeve is provided with the rear end guide hole.
The front guide sleeve and the rear guide sleeve are arranged, so that the replacement cost of the quick-wear part is reduced.
Preferably, the movable die comprises a movable die plate and a movable die insert arranged on the movable die plate.
Preferably, the front end of the secondary ejector rod is provided with a top head, and the top head is in threaded connection with the secondary ejector rod.
The utility model has the advantages that:
first, the utility model discloses an injection mold's secondary pushes up mechanism to one side, through the mold insert of connecting the cantilever type on big block kicking block, and insert the mold insert of cantilever type in keeping away the empty passageway for can set up longer rear end guiding hole on the mold insert of cantilever type, secondary ejector pin and rear end guiding hole and the front end guiding hole sliding fit simultaneously on the big block kicking block, the preceding rear portion of secondary ejector pin all has the support of guiding hole like this, thereby has increased substantially the stability of secondary ejector pin, and secondary ejector pin is difficult to warp and crooked, has prolonged injection mold's life from this, and has improved the quality of moulding plastics.
Second, the utility model discloses an injection mold's secondary pushes up mechanism to one side keeps away empty passageway and is on a parallel with the once ejecting direction of injection molding can effectively avoid the mold insert of cantilever type at the interference of ejecting in-process.
Third, the utility model discloses an injection mold's secondary pushes up mechanism to one side, mold insert adopt the cylinder axle, keep away the structure that empty passageway adopted the cylinder hole and can simplify the processing technology of mould to reduce mould manufacturing cost.
Fourth, the utility model discloses an injection mold's secondary pushes up mechanism to one side has reduced the change expense of vulnerable part through setting up preceding guide pin bushing and back guide pin bushing.
Drawings
Fig. 1 is a schematic structural view of a secondary inclined ejecting mechanism of an injection mold of the present invention;
fig. 2 is a partially enlarged view of fig. 1.
In the figure: 1. the device comprises a movable die, 2, a big cap ejector block, 3, a clearance channel, 4, a secondary inclined ejection mechanism, 5, a secondary ejector rod, 6, a front end guide hole, 7, a cantilever type insert, 8, a rear end guide hole, 9, a secondary push plate, 10, a front guide sleeve, 11, a rear guide sleeve, 12, a movable die insert, 13, a movable die plate, 14, an ejector head, 15 and an injection molding piece.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 1 to 2 show an embodiment of a double-inclined ejecting mechanism of an injection mold according to the present invention, the injection mold comprises a movable mold 1, a large cap ejector block 2 disposed on the movable mold 1 for ejecting an injection molding 15 once, and an empty-avoiding channel 3 disposed on the movable mold 1, connected to the large cap ejector block 2, and parallel to a direction of ejecting the injection molding 15 once, the double-inclined ejecting mechanism 4 comprises a secondary ejector rod 5 disposed obliquely to the direction of ejecting once, the large cap ejector block 2 is provided with a front end guide hole 6 disposed obliquely to the direction of ejecting once for ejecting the injection molding 15 twice, the large cap ejector block 2 is connected to a cantilever-type insert 7, the cantilever-type insert 7 is inserted into the empty-avoiding channel 3, the cantilever-type insert 7 is provided with a rear end guide hole 8 disposed obliquely to the direction of ejecting once, front end guiding hole 6 with rear end guiding hole 8 is coaxial each other, the front end of secondary ejector pin 5 penetrates in proper order just in front end guiding hole 6 and the rear end guiding hole 8 the excircle of secondary ejector pin 5 respectively with front end guiding hole 6 and rear end guiding hole 8 sliding fit, secondary push pedal 9 is connected to the rear end of secondary ejector pin 5.
According to the technical scheme, the cantilever type insert 7 is connected to the big cap ejector block 2, and the cantilever type insert 7 is inserted into the clearance channel 3, so that the longer rear end guide hole 8 can be formed in the cantilever type insert 7, the secondary ejector rod 5 is in sliding fit with the rear end guide hole 8 and the front end guide hole 6 in the big cap ejector block 2, the front portion and the rear portion of the secondary ejector rod 5 are supported by the guide holes, the stability of the secondary ejector rod is greatly improved, the secondary ejector rod is not prone to deformation and bending, the service life of the injection mold is prolonged, and the injection molding quality is improved.
Preferably, the clearance-avoiding channel 3 is parallel to the one-time ejection direction of the injection molding part, and a clearance-avoiding gap is arranged between the cantilever-type insert 7 and the clearance-avoiding channel 3.
The clearance channel 3 is parallel to the one-time ejection direction of the injection molding part, so that the interference of the cantilever type insert 7 in the ejection process can be effectively avoided.
Preferably, the insert 7 is a cylindrical shaft in shape, and the clearance passage 3 is a cylindrical hole.
The insert 7 adopts a cylindrical shaft and the clearance passage 3 adopts a cylindrical hole structure, so that the processing technology of the die can be simplified, and the manufacturing cost of the die is reduced.
Preferably, the big cap ejector block 2 is provided with a front guide sleeve 10, and the front guide sleeve 10 is provided with the front end guide hole 6.
Preferably, a rear guide sleeve 11 is arranged on the cantilever type insert 7, and the rear guide sleeve 11 is provided with the rear end guide hole 8.
The front guide sleeve 10 and the rear guide sleeve 11 are arranged, so that the replacement cost of the quick-wear parts is reduced.
Preferably, the movable die 1 comprises a movable die plate 13 and a movable die insert 12 arranged on the movable die plate 13.
Preferably, the front end of the secondary mandril 5 is provided with a top 14, and the top 14 is in threaded connection with the secondary mandril 5.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A secondary inclined ejection mechanism of an injection mold is characterized in that the injection mold comprises a movable mold, a large cap ejector block arranged on the movable mold and used for primary ejection of an injection molding part, and a clearance channel arranged on the movable mold, connected with the large cap ejector block and parallel to the primary ejection direction of the injection molding part, the secondary inclined ejection mechanism comprises a secondary ejector rod obliquely arranged relative to the primary ejection direction, a front end guide hole obliquely arranged relative to the primary ejection direction and used for secondary ejection of the injection molding part is arranged on the large cap ejector block, a cantilever type insert is connected on the large cap ejector block and inserted into the clearance channel, a rear end guide hole obliquely arranged relative to the primary ejection direction is arranged on the cantilever type insert, and the front end guide hole and the rear end guide hole are coaxial with each other, the front end of the secondary ejector rod penetrates into the front end guide hole and the rear end guide hole in sequence, the outer circle of the secondary ejector rod is in sliding fit with the front end guide hole and the rear end guide hole respectively, and the rear end of the secondary ejector rod is connected with the secondary push plate.
2. The secondary pitched roof mechanism of an injection mold according to claim 1, wherein the clearance channel is parallel to the primary ejection direction of the injection molding piece, and a clearance is arranged between the cantilever type insert and the clearance channel.
3. The secondary pitched roof mechanism of an injection mold according to claim 2, wherein the insert has a cylindrical shape and the clearance passage is a cylindrical hole.
4. The secondary inclined ejection mechanism of an injection mold according to claim 1, wherein the big cap ejector block is provided with a front guide sleeve, and the front guide sleeve is provided with the front end guide hole.
5. The secondary lifter mechanism of an injection mold according to claim 1, wherein the cantilevered insert is provided with a rear guide sleeve, and the rear guide sleeve is provided with the rear guide hole.
6. The mechanism of claim 1, wherein the movable mold comprises a movable mold plate and a movable mold insert disposed on the movable mold plate.
7. The secondary inclined ejector mechanism of the injection mold according to claim 1, wherein a top head is arranged at the front end of the secondary ejector rod, and the top head is in threaded connection with the secondary ejector rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921220185.1U CN210791925U (en) | 2019-07-31 | 2019-07-31 | Secondary inclined ejection mechanism of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921220185.1U CN210791925U (en) | 2019-07-31 | 2019-07-31 | Secondary inclined ejection mechanism of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210791925U true CN210791925U (en) | 2020-06-19 |
Family
ID=71243578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921220185.1U Active CN210791925U (en) | 2019-07-31 | 2019-07-31 | Secondary inclined ejection mechanism of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210791925U (en) |
-
2019
- 2019-07-31 CN CN201921220185.1U patent/CN210791925U/en active Active
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