CN219486451U - Front mould mechanical ejection structure - Google Patents
Front mould mechanical ejection structure Download PDFInfo
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- CN219486451U CN219486451U CN202223533471.8U CN202223533471U CN219486451U CN 219486451 U CN219486451 U CN 219486451U CN 202223533471 U CN202223533471 U CN 202223533471U CN 219486451 U CN219486451 U CN 219486451U
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- guiding
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- clamping groove
- guide
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The utility model relates to a front mold mechanical ejection structure, which relates to the technical field of injection molds and comprises a guiding and resetting insert, a guiding piece for guiding the guiding and resetting insert and a rear mold pull hook needle, wherein movable clamping pins are arranged on the side surfaces of the guiding and resetting insert, and clamping grooves matched with the movable clamping pins are formed in the rear mold pull hook needle; when the movable bayonet lock is clamped into the clamping groove, a first extrusion inclined plane which enables the movable bayonet lock to be separated from the clamping groove is arranged on the inner wall of the clamping groove; the inner wall of the lower end of the guide groove is provided with a first step for keeping the insertion state of the movable bayonet lock and the clamping groove, the inner wall of the lower end of the first step is provided with a second step, and the inner wall of the second step is provided with a second extrusion inclined plane for extruding the movable bayonet lock to enable the movable bayonet lock to be inserted into the clamping groove. According to the utility model, the guiding and resetting insert, the guiding piece, the movable bayonet lock, the guiding groove and the clamping groove are mechanically matched for use, so that the possibility that the ejection structure is invalid due to the product tightening force is avoided, and the use reliability of the die is improved.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to a front mold mechanical ejection structure.
Background
Injection molding generally refers to injection molding, which can be generally divided into the following 6 stages: closing the mold, injecting the adhesive, maintaining the pressure, cooling, opening the mold and taking out the product. In the process of die sinking, the traditional die sinking structure uses a front die ejection structure, and the two commonly used front die ejection structures are respectively a front die ejector plate or an ejection structure simplified into a front die slingshot, the former is complex in structure, the latter is poor in reliability, the ejection structure is easy to fail when the packing force of a product is large, and a front die mechanical ejection structure with high simple reliability needs to be designed.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a front mold mechanical ejection structure aiming at the defects in the prior art.
The technical scheme adopted for solving the technical problems is as follows:
the front mold mechanical ejection structure comprises a guiding and resetting insert, a guiding piece arranged on a front mold core and a rear mold hook needle arranged on a rear mold core, wherein the bottom end of the guiding and resetting insert is provided with an inserting hole matched with the rear mold hook needle, the guiding piece is provided with a guiding groove for guiding the guiding and resetting insert, the side surface of the guiding and resetting insert is provided with a movable clamping pin and a movable hole matched with the movable clamping pin, the movable hole is communicated with the inserting hole, and the rear mold hook needle is provided with a clamping groove matched with the movable clamping pin; when the movable bayonet lock is clamped into the clamping groove, the head part of the movable bayonet lock is exposed out of the movable hole, and a first extrusion inclined plane which extrudes the movable bayonet lock to be separated from the clamping groove when the back die pull hook needle is separated from the jack is arranged on the inner wall of the clamping groove; the inner wall of the lower end of the guide groove is provided with a first step for keeping the insertion state of the movable bayonet lock and the clamping groove, the inner wall of the lower end of the first step is provided with a second step, and the inner wall of the second step is provided with a second extrusion inclined plane for extruding the movable bayonet lock to enable the movable bayonet lock to be inserted into the clamping groove.
The utility model discloses a front mold mechanical ejection structure, wherein two movable clamping pins are arranged and are respectively positioned at two sides of the lower end of a guiding and resetting insert.
The utility model discloses a front mold mechanical ejection structure, wherein a guide piece comprises a first guide block and a second guide block, the first guide block and the second guide block are respectively arranged at two sides of a guide and reset insert, and a gap between the first guide block and the second guide block is the guide groove.
The utility model discloses a front mold mechanical ejection structure, wherein the tail end of a rear mold draw hook needle is provided with a thread in threaded connection with a rear mold core, the tail end of the thread of the rear mold draw hook needle is provided with an annular limiting block, the end face of the front end of the rear mold draw hook needle is an arc-shaped end face, and the center of the arc-shaped end face is provided with a screwing groove.
The utility model relates to a front mould mechanical ejection structure, wherein the clamping groove is an annular clamping groove taking the axial lead of a drawing hook needle of a rear mould as the center.
The utility model discloses a front mold mechanical ejection structure, wherein the top end of a guiding and resetting insert is detachably connected with a small ejector plate, and the top end of the small ejector plate is provided with an elastic piece which is elastically connected with an upper mold base.
The utility model discloses a front mold mechanical ejection structure, wherein the top end of a guide piece is provided with a limiting part for limiting a guide and reset insert.
The utility model has the beneficial effects that: by means of the structure, the front die is pulled to drive the guide and the reset insert to move along the guide groove for guiding the guide and the reset insert, the guide and the reset insert drive the movable clamping pin to slide from the first step capable of keeping the clamping state of the movable clamping pin and the clamping groove to the second step, when the movable clamping pin slides to the second step, the movable clamping pin is enabled to be separated from the clamping groove by the first extrusion inclined plane extrusion in the clamping groove arranged on the rear die pull hook needle, so that the rear die pull hook needle and the guide and the reset insert are separated, ejection of the front die core is completed, the ejection structure can be enabled to be stronger in reliability and small in occupied space by adopting the mutual cooperation between the mechanical structures, stable die opening is ensured even when the packing force of a product is large, and the production stability of the die is greatly improved, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment of the present utility model prior to die opening;
FIG. 2 is a schematic view of the structure of FIG. 1A;
FIG. 3 is a schematic cross-sectional view of an embodiment of the present utility model after mold opening;
FIG. 4 is a schematic view of the structure of B in FIG. 3;
part names and serial numbers in the figure: 1-guiding and resetting insert 10-jack 11-movable bayonet 12-movable hole 2-guiding piece 20-guiding groove 201-first step 202-second step 203-second extrusion inclined plane 21-first guiding block 22-second guiding block 23-limit part 3-back die draw hook needle 31-clamping groove 310-first extrusion inclined plane 32-screw thread 33-annular limit block 34-arc end face 35-tightening groove 4-small ejector plate 5-elastic piece 6-front die core 7-back die core.
Detailed Description
For the purpose of illustrating more clearly the objects, technical solutions and advantages of embodiments of the present utility model, the present utility model will be further described with reference to the accompanying drawings and embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "front", "rear", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or directions or positional relationships in which the product of the present utility model is conventionally put in use, are merely for convenience of describing the present utility model and simplifying the description, and are not to be construed as indicating or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus are not to be construed as limiting the present utility model, and terms such as "first", "second", "third", etc. are merely used for distinguishing the description, but are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The front mold mechanical ejection structure of the preferred embodiment of the utility model comprises a guiding and resetting insert 1, a guiding piece 2 arranged on a front mold core 6 and a rear mold drawing needle 3 arranged on a rear mold core 7, wherein the bottom end of the guiding and resetting insert 1 is provided with a jack 10 matched with the rear mold drawing needle 3, the guiding piece 2 is provided with a guiding groove 20 for guiding the guiding and resetting insert 1, the side surface of the guiding and resetting insert 1 is provided with a movable bayonet lock 11 and a movable hole 12 matched with the movable bayonet lock 11, the movable hole 12 is communicated with the jack 10, and the rear mold drawing needle 3 is provided with a clamping groove 31 matched with the movable bayonet lock 11; when the movable clamping pin 11 is clamped into the clamping groove 31, the head of the movable clamping pin 11 is exposed out of the movable hole 12, and a first extrusion inclined plane 310 which extrudes the movable clamping pin 11 to be separated from the clamping groove 31 when the rear die pull hook needle 3 is separated from the jack 10 is arranged on the inner wall of the clamping groove 31; the inner wall of the lower end of the guide groove 20 is provided with a first step 201 for keeping the insertion state of the movable bayonet 11 and the clamping groove 31, the inner wall of the lower end of the first step 201 is provided with a second step 202, and the inner wall of the second step 202 is provided with a second extrusion inclined plane 203 for extruding the movable bayonet 11 to be inserted into the clamping groove 31.
By means of the structure form, the front die is pulled to drive the guide and reset insert 1 to move along the guide groove 20 in the guide piece 2 for guiding the guide and reset insert 1, the guide and reset insert 1 drives the movable clamping pin 11 to move, the movable clamping pin 11 slides towards the second step 202 from the first step 201 capable of keeping the clamping state of the movable clamping pin 11 and the clamping groove 31, when the movable clamping pin 11 slides to the second step 202, the first extrusion inclined plane 310 in the clamping groove 31 arranged on the rear die pull hook needle 3 can extrude the movable clamping pin 11 to enable the movable clamping pin 11 to be separated from the clamping groove 31, after the movable clamping pin 11 is separated from the clamping groove 31, the rear die pull hook needle 3 and the guide and reset insert 1 are separated, so that the ejection action of the front die is completed, the front die mechanical ejection structure can be enabled to have stronger reliability and occupy small space through the mutual matching, even when the packing force of a product is large, the production stability of the die can be greatly improved.
Preferably, the movable bayonet lock 11 is provided with two and is located the both sides of the lower extreme of direction and reset mold insert 1 respectively, through setting up two movable bayonet locks 11 and setting up two movable bayonet locks 11 respectively in the both sides of the lower extreme of direction and reset mold insert 1, can make the cooperation between direction and reset mold insert 1 and direction 2, back die draw hook needle 3 more stable, smooth and easy, guaranteed the stability between the mechanical swing joint through symmetrical structure, promoted the reliability.
Preferably, the guide member 2 comprises a first guide block 21 and a second guide block 22, the first guide block 21 and the second guide block 22 are respectively arranged at two sides of the guide and reset insert 1, a gap between the first guide block 21 and the second guide block 22 is a guide groove 20, and the guide function of the guide and reset insert 1 can be more stably, conveniently and simply realized by arranging the guide member 2 into the first guide block 21 and the second guide block 22 which are respectively arranged at two sides of the guide and reset insert 1.
Preferably, the tail end of the back die drawing needle 3 is provided with a thread 32 in threaded connection with the back die core 7, the tail end of the thread 32 of the back die drawing needle 3 is provided with an annular limiting block 33, the end face of the front end of the back die drawing needle 3 is an arc-shaped end face 34, the center of the arc-shaped end face 34 is provided with a screwing groove 35, the back die drawing needle 3 can be more conveniently connected to the back die core 7 by arranging the thread 32 and the screwing groove 35, and the back die drawing needle 3 can be more accurately positioned on the back die core 7 by arranging the annular limiting block 33, so that the accuracy and the reliability of the structure are ensured.
Preferably, the clamping groove 31 is an annular clamping groove 31 taking the axial lead of the rear die drawing needle 3 as the center, and the clamping groove 31 is arranged into the annular clamping groove 31 without specially confirming the opening direction of the clamping groove 31, so that the accuracy of connecting the movable clamping pin 11 with the clamping groove 31 after the rear die drawing needle 3 is screwed on the rear die core 7 is ensured, and the stability of connecting the guide and reset insert 1 with the rear die drawing needle 3 is ensured.
Preferably, the guide is detachably connected with the small thimble plate 4 at the top end of the reset insert 1, the elastic piece 5 elastically connected with the upper die base is arranged at the top end of the small thimble plate 4, the die opening ejection structure and the product ejection structure can be combined through the guide and the reset insert 1, the die structure is optimized, the occupied space is smaller, the whole die structure is simpler, and the elastic piece 5 can be a spring.
Preferably, the top of the guide 2 is provided with a limiting part 23 limiting the guide and the reset insert 1, specifically, the limiting part 23 is arranged at the top of the first guide block 21, and the moving distance of the guide and the reset insert 1 in the guide groove 20 can be limited by arranging the limiting part 23, so that the connection tightness between the movable clamping pin 11 and the guide and the reset insert 1 is ensured, and the situation that the movable clamping pin 11 falls off due to overlong moving distance of the guide and the reset insert 1 is avoided.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (7)
1. The utility model provides a front mould machinery ejection structure which characterized in that: the mold comprises a guiding and resetting insert, a guiding piece arranged on a front mold core and a rear mold hook needle arranged on a rear mold core, wherein the bottom end of the guiding and resetting insert is provided with an inserting hole matched with the rear mold hook needle, the guiding piece is provided with a guiding groove for guiding the guiding and resetting insert, the side surface of the guiding and resetting insert is provided with a movable clamping pin and a movable hole matched with the movable clamping pin, the movable hole is communicated with the inserting hole, and the rear mold hook needle is provided with a clamping groove matched with the movable clamping pin; when the movable bayonet lock is clamped into the clamping groove, the head part of the movable bayonet lock is exposed out of the movable hole, and a first extrusion inclined plane which extrudes the movable bayonet lock to be separated from the clamping groove when the back die pull hook needle is separated from the jack is arranged on the inner wall of the clamping groove; the inner wall of the lower end of the guide groove is provided with a first step for keeping the insertion state of the movable bayonet lock and the clamping groove, the inner wall of the lower end of the first step is provided with a second step, and the inner wall of the second step is provided with a second extrusion inclined plane for extruding the movable bayonet lock to enable the movable bayonet lock to be inserted into the clamping groove.
2. The front mold mechanical ejection structure according to claim 1, wherein: the movable clamping pins are arranged at two sides of the lower end of the guiding and resetting insert respectively.
3. The front mold mechanical ejection structure according to claim 1, wherein: the guide piece comprises a first guide block and a second guide block, the first guide block and the second guide block are respectively arranged on two sides of the guide and reset insert, and a gap between the first guide block and the second guide block is the guide groove.
4. The front mold mechanical ejection structure according to claim 1, wherein: the rear die draw hook needle tail end is provided with the screw thread with back die benevolence spiro union, the rear die draw hook needle is provided with annular stopper at the screw thread end, the terminal surface of rear die draw hook needle front end is the arc terminal surface, arc terminal surface center is provided with the groove of screwing up.
5. The front mold mechanical ejection structure according to claim 1, wherein: the clamping groove is an annular clamping groove taking the axial lead of the back die pull hook needle as the center.
6. The front mold mechanical ejection structure according to claim 1, wherein: the guide and reset insert top is detachably connected with a small ejector pin plate, and the small ejector pin plate top is provided with an elastic piece which is elastically connected with the upper die holder.
7. The front mold mechanical ejection structure according to claim 1, wherein: the top end of the guide piece is provided with a limiting part for limiting the guide and reset insert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223533471.8U CN219486451U (en) | 2022-12-28 | 2022-12-28 | Front mould mechanical ejection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223533471.8U CN219486451U (en) | 2022-12-28 | 2022-12-28 | Front mould mechanical ejection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219486451U true CN219486451U (en) | 2023-08-08 |
Family
ID=87481980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223533471.8U Active CN219486451U (en) | 2022-12-28 | 2022-12-28 | Front mould mechanical ejection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219486451U (en) |
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2022
- 2022-12-28 CN CN202223533471.8U patent/CN219486451U/en active Active
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