CN211683302U - Injection mold with automatic side gate cutting function - Google Patents
Injection mold with automatic side gate cutting function Download PDFInfo
- Publication number
- CN211683302U CN211683302U CN201922192140.4U CN201922192140U CN211683302U CN 211683302 U CN211683302 U CN 211683302U CN 201922192140 U CN201922192140 U CN 201922192140U CN 211683302 U CN211683302 U CN 211683302U
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- plate
- runner
- injection mold
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- 238000002347 injection Methods 0.000 title claims abstract description 23
- 239000007924 injection Substances 0.000 title claims abstract description 23
- 238000005520 cutting process Methods 0.000 title claims description 14
- 239000000463 material Substances 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 2
- 238000012797 qualification Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of injection mold, concretely relates to side runner automatic cutout's injection mold. The injection mold with the side gate automatically cut off sequentially comprises an upper taking-off plate, a fixed mold plate, a movable mold plate, a supporting plate, an upper ejector plate, a lower ejector plate and a lower taking-off plate, a pouring system and a product cavity are formed between the fixed mold plate and the movable mold plate, at least one ejection mechanism is arranged below the product cavity, at least one material pulling rod is arranged below the pouring system, a delay mechanism is arranged on the material pulling rod, and the delay mechanism is used for controlling the material pulling rod and the ejection mechanism to form a stroke difference during mold opening. The utility model provides a technical scheme is through controlling when the product upward movement, and the runner is motionless, so the product will automatic cutout separation with the runner, and product and the automatic disconnection that cuts off of runner ensure product uniformity and finished product qualification rate, reduce the unnecessary loss, reduce the product that manual operation caused bad.
Description
Technical Field
The utility model belongs to the technical field of injection mold, concretely relates to side runner automatic cutout's injection mold.
Background
The mold used for plastic injection molding is called an injection mold; the injection mould can form plastic products with complex appearance, high size precision or with inserts in one step. For injection molding, the mold has a great influence on the quality of the molded product.
The gate, also called a feed port, refers to a section of the channel from the runner to the mold cavity, which is the smallest and shortest section in the runner system. The gate is understood to be the last "gate" through which molten plastic enters the mold cavity through the runner system, and is the feed channel connecting the runner and the mold cavity. It has two functions: firstly, controlling the plastic melt to flow into a cavity; secondly, after the injection pressure is removed, the cavity is sealed, so that the plastic which is not cooled and solidified in the cavity cannot flow backwards. The gates can be classified into a through gate, a side gate, a spot gate, a submarine gate, a tab gate, and the like.
Wherein the side gate shape is simple, and processing is convenient, and the easy accurate control of size, and easy quick change and use most extensively, but the side gate needs the manual work to cut off and waters, and also the product needs the manual work to cut runner and product with the water mouth pliers separately, increases the human cost like this, reduces production efficiency, can't realize automated production to, can produce in workman's operation process and cut the phenomenon uneven, perhaps damage product appearance, reduce the product yield.
SUMMERY OF THE UTILITY MODEL
The utility model provides an injection mold of side runner automatic cutout for solve present side runner and need artifical problem of intervene and cut off.
In order to solve the technical problem, the technical scheme of the utility model is that: the injection mold with the side gate automatically cut off sequentially comprises an upper taking-off plate, a fixed mold plate, a movable mold plate, a supporting plate, an upper ejector plate, a lower ejector plate and a lower taking-off plate, a pouring system and a product cavity are formed between the fixed mold plate and the movable mold plate, at least one ejection mechanism is arranged below the product cavity, at least one material pulling rod is arranged below the pouring system, a delay mechanism is arranged on the material pulling rod, and the delay mechanism is used for controlling the material pulling rod and the ejection mechanism to form a stroke difference during mold opening. When the pouring system is opened, the ejector pin mechanism ejects a product out of the driven template, and the pouring system is not ejected out by the material pulling rod as the delay mechanism in the prior art, so that a stroke difference is formed between the pouring system and the product, the product is separated from a runner, and automatic cutting is realized.
Optionally, the stroke difference is 8-12 mm.
Optionally, the gating system includes a runner and side gates disposed on the runner, each of the side gates is provided with at least one corresponding gate pulling rod, and a delay mechanism is disposed below the gate pulling rod.
Optionally, the distance between the center of the gate material pulling rod and the corresponding side gate is 5-7 mm.
Optionally, the delay mechanism includes a spring sleeved on the material pulling rod, a delay thimble inverted below the material pulling rod, and a delay hole accommodating the spring and the delay thimble. When the die is closed, the movable space of the delay hole is a delay stroke.
The thimble is generally arranged with the base at the lower part and the rod at the upper part, so that the inversion means that the material pulling rod base is connected with the delay thimble base, the sectional area of the base is larger than that of the rod, the upper part of the delay hole is larger than the lower part of the delay hole, and the delay stroke can be controlled by clamping the material pulling rod base and the delay thimble base. The spring can guarantee that when lower thimble board and last thimble board begin upward movement, the material pulling rod is fixed, and until time delay hole motion space is 0, lower thimble board contacts time delay thimble base and then promotes the material pulling rod and continues upward movement, separates runner and movable mould board.
Optionally, the top end of the material pulling rod is provided with a dovetail.
Optionally, a runner pulling rod is further arranged below the runner, and a delay mechanism is arranged at the bottom of the runner pulling rod.
Optionally, the corresponding position of the sprue pulling rod is a runner cutting part, a reinforcing rib is arranged on the runner cutting part, and the lower part of the runner pulling rod extends downwards to form mortise-tenon connection with the sprue pulling rod.
Optionally, the ejection mechanism is a thimble or a thimble assembly.
The utility model provides a technical scheme is through controlling when the product upward movement, and the runner is motionless, so the product will automatic cutout separation with the runner, and product and the automatic disconnection that cuts off of runner ensure product uniformity and finished product qualification rate, reduce the unnecessary loss, reduce the product that manual operation caused bad.
Drawings
FIG. 1 is a schematic diagram of a mold assembly according to an embodiment of the present invention, in which a side gate is automatically cut;
FIG. 2 is a cross-sectional view of one embodiment of the gating system of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 1;
fig. 4 is a schematic view of the opening of the injection mold of fig. 1.
Shown in the figure:
10-upper taking auxiliary plate, 20-fixed template, 30-movable template, 40-supporting plate, 50-upper ejector plate, 60-lower ejector plate, 70-lower taking auxiliary plate, 80-casting system, 81-runner, 82-side runner, 83-runner splitting part, 84-reinforcing rib, 91-ejector pin, 92-runner pulling rod, 93-runner pulling rod, 100-delay mechanism, 101-spring, 102-delay ejector pin and 103-delay hole.
Detailed Description
For the sake of understanding, the injection mold with automatic side gate cutting will be described with reference to the following examples, which are only for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations and positional relationships based on the orientation and positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, and may be, for example, a fixed connection, a detachable connection or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the injection mold with automatically cut side gates comprises an upper taking-off plate 10, a fixed mold plate 20, a movable mold plate 30, a support plate 40, an upper ejector plate 50, a lower ejector plate 60 and a lower taking-off plate 70 in sequence from top to bottom, a gating system 80 and two left and right product cavities are formed between the fixed mold plate 20 and the movable mold plate 30, and an ejector 91 is arranged below the product cavities.
As shown in fig. 2, the gating system 80 includes a runner 81 and side gates 82 respectively arranged at the left and right of the runner 81, and with continued reference to fig. 1 and 2, each side gate 82 is provided with a corresponding gate pulling rod 92, the corresponding position of the gate pulling rod 92 is a runner cutting part 83, a trapezoidal raised reinforcing rib 84 is arranged on the runner cutting part 83 for reinforcing during pulling, the lower part is prevented from being broken by force at the position other than the gate, the lower part extends downwards to form a mortise-tenon joint with the gate pulling rod 92, and the distance L from the center of the gate pulling rod 92 to the corresponding side gate 82 is 7 mm; a runner pulling rod 93 is arranged below the runner 81, and dovetails are arranged at the top ends of the runner pulling rod 92 and the runner pulling rod 93.
With continued reference to fig. 1, the bottom of the gate pulling rod 92 and the runner pulling rod 93 are respectively provided with a time delay mechanism 100.
As shown in fig. 3, the delay mechanism 100 includes a spring 101 sleeved on the material pulling rod, a delay thimble 102 inverted below the material pulling rod, and a delay hole 103 for accommodating the spring 101 and the delay thimble 102, the delay hole 103 is small at an upper thimble plate 50 portion and large at a lower thimble hole, the material pulling rod is inserted and assembled from bottom to top, the delay hole 103 is large at an upper thimble plate 60 portion and small at a lower thimble plate 60 portion, the delay thimble 102 is inserted and assembled from top to bottom in an inverted manner, when the mold is closed, the upper thimble plate 50 presses the delay system 100, the spring 101 is in a compressed state, and a motion space exists at a lower portion of the delay hole, that is, the lower thimble hole has a distance from a base of the delay thimble 102, that is, a travel difference H between the thimble 91 and the material pulling rod is 10mm here.
As shown in fig. 4, when the mold is opened, the ejector plate starts to move upwards, the product moves upwards under the driving of the ejector 91, and the flow channel 81 is pulled by the gate pull rod 92 and the flow channel pull rod 93, and will not move upwards under the force of the spring 101, so under the condition that the ejector plate moves within 10 mm: the product moves upwards to be separated from the movable template, the flow channel 81 is not moved, so that the product and the flow channel 81 can be automatically cut off and separated, when the ejector plate moves by more than 10mm, the sprue pulling rod 92 and the flow channel pulling rod 93 move along with the ejector plate, the flow channel 81 and the product are ejected out of the mold together, 2 parts of the product and the flow channel are obtained, and the automatic cutting process is completed.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalents may be substituted for some or all of the features thereof without departing from the scope of the present invention.
Claims (8)
1. An injection mold with a side gate capable of being automatically cut off sequentially comprises an upper taking and paying plate, a fixed mold plate, a movable mold plate, a supporting plate, an upper ejector plate, a lower ejector plate and a lower taking and paying plate, a casting system and a product cavity are formed between the fixed mold plate and the movable mold plate, and at least one ejection mechanism is arranged below the product cavity.
2. The automatic side-gate cutoff injection mold according to claim 1, wherein the stroke difference is 8-12 mm.
3. An injection mold with automatic side gate cutoff according to claim 1, wherein the distance from the center of the gate lifter bar to the corresponding side gate is 5-7 mm.
4. The injection mold for automatically cutting off the side gate according to claim 1, wherein the corresponding position of the gate material pulling rod is a runner cutting part, a reinforcing rib is arranged on the runner cutting part, and the lower part of the runner cutting part extends downwards to form a mortise-tenon joint with the gate material pulling rod.
5. The edge-gated automatic cutout injection mold of claim 1 wherein said lifter bar tip is provided with a dovetail.
6. The automatic side-gate cutting injection mold according to claim 1, wherein a runner pulling rod is further arranged below the runner, and a time delay mechanism is arranged at the bottom of the runner pulling rod.
7. The automatic side gate cutoff injection mold according to claim 1, wherein the delay mechanism comprises a spring fitted over the pull rod, a delay pin inverted under the pull rod, and a delay hole accommodating the spring and the delay pin.
8. The automatic side-gate cutoff injection mold according to claim 1, wherein the ejection mechanism is a thimble or a thimble assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922192140.4U CN211683302U (en) | 2019-12-09 | 2019-12-09 | Injection mold with automatic side gate cutting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922192140.4U CN211683302U (en) | 2019-12-09 | 2019-12-09 | Injection mold with automatic side gate cutting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211683302U true CN211683302U (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922192140.4U Expired - Fee Related CN211683302U (en) | 2019-12-09 | 2019-12-09 | Injection mold with automatic side gate cutting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211683302U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113799331A (en) * | 2021-09-09 | 2021-12-17 | 宁波方正汽车模具股份有限公司 | Injection mold with automatic stub bar cutting function |
| CN113815193A (en) * | 2021-09-09 | 2021-12-21 | 宁波方正汽车模具股份有限公司 | Injection mold with automatic stub bar excision function |
-
2019
- 2019-12-09 CN CN201922192140.4U patent/CN211683302U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113799331A (en) * | 2021-09-09 | 2021-12-17 | 宁波方正汽车模具股份有限公司 | Injection mold with automatic stub bar cutting function |
| CN113815193A (en) * | 2021-09-09 | 2021-12-21 | 宁波方正汽车模具股份有限公司 | Injection mold with automatic stub bar excision function |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201016 |