CN211616477U - Bottle cap injection mold - Google Patents
Bottle cap injection mold Download PDFInfo
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- CN211616477U CN211616477U CN201921760014.8U CN201921760014U CN211616477U CN 211616477 U CN211616477 U CN 211616477U CN 201921760014 U CN201921760014 U CN 201921760014U CN 211616477 U CN211616477 U CN 211616477U
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Abstract
A bottle cap injection mold adopts a three-plate type spot gate and comprises an upper half mold and a lower half mold, and is characterized in that the upper half mold comprises an upper mold base plate, a stripper plate (10) and a fixed mold plate (19), and a mold core (20) is arranged on the fixed mold plate (19); the lower half die comprises a core fixing plate (22), a movable die plate (5) and a lower die base plate (1), a sliding block (21) is arranged in the core fixing plate (22), a guide rod (23) is fixed on the movable die plate (5), the guide rod (23) is connected with the sliding block (21) in a slant sliding fit mode, and segmented threads in the bottle cap are formed by utilizing an inner slide die structure. The result shows that the injection mold has reasonable structural design, reliable mold opening and closing action, smooth demolding of the plastic part, smooth and traceless outer surface of the plastic part and high precision.
Description
Technical Field
The utility model belongs to the injection mold field particularly relates to a bottle lid injection mold.
Background
In injection molded parts, many parts have threads and thread stripping is a key to the mold design of such parts. Rotational stripping is one of the common stripping methods for threaded parts. The production efficiency of injection molding can effectively be improved to a mould multicavity, but to the condition of a mould multicavity, the current rotatory drawing of patterns scheme has the not enough problem of drawing of patterns stability.
In addition, a demoulding mode is also provided, namely forced demoulding, although the structure of the mould is greatly simplified relatively by the forced demoulding, the demoulding process is very efficient and convenient, the thread is damaged by the forced demoulding, the product reject ratio is increased, and the limitation is very strong.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving the problem that screw member injection mold structure is complicated, drawing of patterns poor stability, the product defective rate is high.
A bottle cap injection mold comprises an upper half mold and a lower half mold, wherein the upper half mold comprises an upper mold base plate, a stripper plate (10) and a fixed mold plate (19), and a mold core (20) is arranged on the fixed mold plate (19); the lower half die comprises a core fixing plate (22), a movable die plate (5) and a lower die base plate (1), a sliding block (21) is arranged in the core fixing plate (22), a guide rod (23) is fixed on the movable die plate (5), and the guide rod (23) is connected with the sliding block (21) in a sliding fit mode in an inclined mode; the upper die seat plate is connected with the stripper plate (10) through a limiting screw (11); a shutter is arranged between the fixed mould plate (19) and the core fixing plate (22); the core fixing plate (22) and the movable template (5) are connected through a distance screw (18).
On the basis, the guide rod (23) is matched with the sliding block (21) through a dovetail groove or a T-shaped groove.
On the basis, the lower half die is further provided with a push plate (2) and a push rod fixing plate (3), the push plate (2) and the push rod fixing plate (3) are provided with a push rod (7) and a guide pillar (6), the guide pillar (6) is sleeved with a second spring (4), and the second spring (4) is located between the push rod fixing plate (3) and the movable die plate (5).
On the basis, the fixed die plate (19) and the core fixing plate (22) are provided with cooling water channels (8).
On the basis, the upper die base plate is provided with a material pulling rod (32), and the material pulling rod (32) penetrates through the stripper plate (10) and goes deep into the flow passage.
The utility model discloses a line position mould structure shaping in segmentation screw thread utilization in bottle lid injection mold bottle lid. The result shows that the injection mold has reasonable structural design, reliable mold opening and closing action, smooth demolding of the plastic part, smooth and traceless outer surface of the plastic part and high precision.
Drawings
FIG. 1 is the schematic structural diagram of the bottle cap injection mold of the present invention
FIG. 2 is the schematic structural diagram of the bottle cap injection mold of the present invention
FIG. 3 is the schematic view of the mold opening state of the bottle cap injection mold of the present invention
1. A lower die base plate; 2, pushing a plate; 3. a push rod fixing plate; 4 a second spring; 5, moving the template; 6, guide pillars; 7, a push rod; 8, cooling water flow channels; 9 backing plates; 10, stripping plate; 11, a limit screw; 12, positioning a ring; 13 positioning ring fixing screws; 14 a primary flowpath liner; 15. 25, screws; 16 rubber rings; 17 a first return spring; an 18-distance screw; 19, fixing a template; 20 mold cores; 21 a slide block; 22 core fixing plates; 23 a guide rod; 24 a reset lever; 26 a guide sleeve; 27 cushion blocks; 28 a nut; 29 bolts; 30 lower die seat plate screws; 31 a wedge block; 32 pulling the material rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, fig. 1-2 are schematic structural views of the bottle cap injection mold of the present invention.
A bottle cap injection mold comprises an upper half mold and a lower half mold, wherein the upper half mold comprises an upper mold base plate, a stripper plate 10 and a fixed mold plate 19, and a mold core 20 is arranged on the fixed mold plate 19; the lower half die comprises a core fixing plate 22, a movable die plate 5 and a lower die base plate 1, a sliding block 21 is arranged in the core fixing plate 22, the sliding block is provided with a thread forming surface, a guide rod 23 is fixed on the movable die plate 5, and the guide rod 23 is connected with the sliding block 21 in a slant sliding fit manner; the upper die base plate is connected with the stripper plate 10 through a limiting screw 11; a shutter is provided between the fixed die plate 19 and the core fixing plate 22; the core fixing plate 22 and the movable die plate 5 are connected through a distance screw 18 sleeved with a first return spring 17. The guide rod 23 is fitted with the slider 21 through a dovetail groove or a T-shaped groove. The lower half die is further provided with a push plate 2 and a push rod fixing plate 3, the push plate 2 and the push rod fixing plate 3 are provided with a push rod 7 and a guide pillar 6, the guide pillar 6 is sleeved with a second spring 4, and the second spring 4 is located between the push rod fixing plate 3 and the movable die plate 5. The stationary platen 19 and the core fixing plate 22 are provided with cooling water flow passages 8. The upper die base plate is provided with a material pulling rod 32, and the material pulling rod 32 penetrates through the stripper plate 10 and goes deep into the flow passage.
The operation of the mold is described below with reference to fig. 3.
1 because the shutter for increasing the mold opening resistance between the fixed mold plate and the movable mold plate, which is composed of the screw 15 and the rubber ring 16, is installed, after the injection molding, pressure maintaining, feeding and cooling of the injection molding machine are finished, the parting surface I, II is ensured to be opened before the fixed mold plate 19 and the core fixing plate 22 are opened.
2, the mould is opened from a parting surface I, II at the same time, and the solidified material of the casting system is separated from the plastic part under the action of the material pulling rod 32; the stripper plate 10 moves downwards, the material pulling rod 32 arranged on the upper die base plate is separated from the solidified material of the casting system, and the solidified material of the casting system is suspended and automatically drops.
And 3, the movable mold continues to move backwards, the shutter is opened, the mold is opened from a parting surface III, and the mold is completely opened at the moment to expose the plastic part. Because the thread on the plastic part is reversely buckled, the plastic part is ensured to be remained on the movable die all the time.
And 4, the mold is continuously opened, the movable mold moves backwards continuously, the first return spring 17 compressed when the mold is closed and locked starts to be unfolded at the moment, the mold is opened from the parting surface IV, and the first return spring 17 pushes the core fixing plate 22 and the slide block 21 to move upwards. Because the sliding block 21 is arranged on the guide rod 23 and moves inwards along the sliding groove of the guide rod 23 while moving upwards, the action of pulling the core of the inner slide of the sliding block 21 is completed, the opening distance of the parting surface IV is limited by the distance-fixing screw 18, the inner slide of the sliding block is ensured to complete the core pulling, and the sliding block can not be separated from the female die.
5 after the mold is opened for a sufficient distance, the ejector rod of the injection machine pushes the push plate 2 of the mold ejection mechanism to move forwards, the push rod 7 ejects the plastic part, the ejection action is finished, and the demolding of the plastic part is finished; before the mold is closed again, the ejector pin of the injection molding machine is withdrawn firstly. When the mold is closed, the movable mold part of the injection molding machine moves upwards. The die adopts guide columns for forward installation and reverse installation, and two sets of guide mechanisms ensure accurate guide and positioning of the die plate. And starting injection molding and entering the next working cycle.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (4)
1. The bottle cap injection mold comprises an upper half mold and a lower half mold, and is characterized in that the upper half mold comprises an upper mold base plate, a stripper plate (10) and a fixed mold plate (19), and a mold core (20) is arranged on the fixed mold plate (19); the lower half die comprises a core fixing plate (22), a movable die plate (5) and a lower die base plate (1), a sliding block (21) is arranged in the core fixing plate (22), the sliding block is provided with a thread forming surface, a guide rod (23) is fixed on the movable die plate (5), and the guide rod (23) is connected with the sliding block (21) in an inclined sliding fit manner; the upper die seat plate is connected with the stripper plate (10) through a limiting screw (11); a shutter is arranged between the fixed mould plate (19) and the core fixing plate (22); the core fixing plate (22) is connected with the movable template (5) through a distance screw (18) sleeved with a first return spring (17), wherein the guide rod (23) is matched with the sliding block (21) through a dovetail groove or a T-shaped groove.
2. The injection mold for bottle caps as claimed in claim 1, wherein the lower mold half further comprises a push plate (2) and a push rod fixing plate (3), the push plate (2) and the push rod fixing plate (3) are provided with a push rod (7) and a guide post (6), the guide post (6) is sleeved with a second spring (4), and the second spring (4) is located between the push rod fixing plate (3) and the movable mold plate (5).
3. The bottle cap injection mold of claim 1, wherein the stationary platen (19) and the core fixing platen (22) are provided with cooling water flow passages (8).
4. The injection mold for bottle caps as claimed in claim 1, wherein the upper mold plate is provided with a pulling rod (32), and the pulling rod (32) penetrates through the stripper plate (10) and penetrates into the flow passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921760014.8U CN211616477U (en) | 2019-10-21 | 2019-10-21 | Bottle cap injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921760014.8U CN211616477U (en) | 2019-10-21 | 2019-10-21 | Bottle cap injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211616477U true CN211616477U (en) | 2020-10-02 |
Family
ID=72623825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921760014.8U Active CN211616477U (en) | 2019-10-21 | 2019-10-21 | Bottle cap injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211616477U (en) |
-
2019
- 2019-10-21 CN CN201921760014.8U patent/CN211616477U/en active Active
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