CN210174121U - Hot cutting structure in mould - Google Patents
Hot cutting structure in mould Download PDFInfo
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- CN210174121U CN210174121U CN201920334818.5U CN201920334818U CN210174121U CN 210174121 U CN210174121 U CN 210174121U CN 201920334818 U CN201920334818 U CN 201920334818U CN 210174121 U CN210174121 U CN 210174121U
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Abstract
The utility model discloses a structure is cut to mould heat in mould, including mould main part and hot structure of cutting, the mould main part is equipped with the runner that is used for injection moulding product and the fashioned chamber of moulding plastics of product including mutually supporting front mould and back mould, the junction of front mould and back mould, and the hot structure of cutting includes cutter, stroke pole and control jar, the hot structure of cutting be located the mould main part, the one end of cutter links to each other with runner or the chamber of moulding plastics, the other end and the stroke pole of cutter are connected, the piston fixed connection of stroke pole and control jar. The hot cutting structure that cutter, stroke pole and control cylinder are constituteed can reach the effect of hot cutting in the mould through the control of control cylinder to the cutter, and this scheme simple structure, convenient operation can not cause the influence to mould overall structure, has simultaneously and improves product appearance quality, reduces production processes, beneficial effect such as improvement production efficiency.
Description
Technical Field
The utility model belongs to the technical field of the mould shaping and specifically relates to a hot cutting structure in mould.
Background
Modern injection moulding production in-process is more and more high to production efficiency and product appearance requirement, improves production efficiency and will guarantee product appearance quality requirement simultaneously promptly, and for this reason many moulds begin to use the interior hot cutting technique of mould to improve the appearance quality of product, but the hot cutting structure in the mould that has now mostly is to amputation to the runner waste material of gate department, does not have the interior hot cutting structure of mould that can amputate to the chamber product of moulding plastics.
For example, a "mold structure for automatically cutting off a gate by hot cutting in a mold" disclosed in chinese patent document, publication No. CN108638454A, includes a front mold, a rear mold assembled with each other, and a cutter advancing assembly disposed in the rear mold, a runner for injection molding a product is formed between the front mold and the rear mold, and each gate end of the runner is connected to a product injection molding cavity; wherein, the cutter advancing component is provided with a cutter which can advance to the sprue; in the injection molding process, the cutter advancing assembly drives the cutter to be ejected into a position between the runner gate and the product injection molding cavity in the back mold, the runner and the product injection molding cavity are cut off during cooling molding of a product, and the hot cutting process in the product mold is realized. This scheme can realize the effect of automatic disconnected runner, nevertheless can't carry out the interior hot cutting action of mould to the intracavity product of moulding plastics, and the suitability is not strong.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome prior art's unable problem of carrying out the hot cut in the mould to the intracavity product of moulding plastics, provide one kind and can carry out the interior hot cut structure of mould of hot cut in the mould to runner and injection moulding chamber.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a structure is surely to mould heat, includes mould main part and earnestly structure, characterized by, the mould main part in the junction of front mould and back mould be equipped with the runner that is used for injection moulding product and the fashioned chamber of moulding plastics of product, earnestly structure include cutter, stroke pole and control cylinder, earnestly structure be located the mould main part, the one end and the runner of cutter or the chamber of moulding plastics link to each other, the other end and the stroke pole of cutter are connected, the piston fixed connection of stroke pole and control cylinder. The hot cutting structure that cutter, stroke pole and control cylinder are constituteed can reach the effect of hot cutting in the mould through the control of control cylinder to the cutter, and the thickness of cutter is less usually in this scheme, can avoid causing the influence to the product shaping of the intracavity of moulding plastics, and simple structure simultaneously, convenient operation can not cause the influence to mould overall structure.
Preferably, the hot cutting structure can be provided with a plurality of hot cutting structures on the same die, and the control cylinder is a control oil cylinder or a control air cylinder. The setting of a plurality of hot cutting structures can carry out the hot cutting action simultaneously to the different positions of product, improves the appearance quality of product greatly, and the control cylinder or the setting of control hydro-cylinder all can realize the control to the cutter, have guaranteed the stability of operation simultaneously.
Preferably, the rear mold is provided with a guide block, the guide block is fixedly connected with the rear mold, a cutter passage is arranged between the guide block and the rear mold, and the cutter penetrates through the cutter passage to be communicated with the flow channel or the injection molding cavity. The setting of guide block can guarantee the orbit of cutter under the condition that does not lead to the fact the influence to the mould is whole, avoids liquid plastic to flow into in the cutter route simultaneously, promotes the stability of structure.
Preferably, a cutter seat is arranged at the joint of the cutter and the travel rod, a limit groove used for limiting the displacement of the cutter seat is arranged on the rear die, the cutter seat is fixedly connected with the cutter, and one end, far away from the cutter, of the cutter seat is connected with the travel rod. The design of cutter seat and spacing groove can control the displacement volume of cutter, avoids cutter and front mould to bump, prolongs the life of mechanism and mould.
Preferably, the cutter is annular, and the guide block is located in the middle of the annular cutter. Through-hole structure often appears in the fashioned product of plastic, for this reason, the through-hole position can realize through agreeing with of preceding back mould when the mould design, thereby preceding back mould is at the contact of through-hole position when leading to the mould closure, consequently this type of mould required precision is high, and often appear agreeing with the degree of coverage not high and the mould that causes damages, and simultaneously, because when the plastic shaping, the molten state plastic can flow around the both ends of through-hole position, weld line can appear in inevitable meeting on the product, cause the influence to the outward appearance of product, and the emergence of above-mentioned condition can then be avoided in setting up of annular cutter, improve the appearance quality of product greatly.
Therefore, the utility model discloses following beneficial effect has:
(1) the structure is simple;
(2) the stability is strong;
(3) the appearance quality of the product can be greatly improved.
Drawings
Fig. 1 is a schematic diagram of the position structure of the middle mold and the product of the present invention.
Fig. 2 is a schematic cross-sectional view at the position a-a in fig. 1.
Fig. 3 is an enlarged schematic view of the position C in fig. 2.
Fig. 4 is a schematic cross-sectional view at the position B-B in fig. 1.
Fig. 5 is an enlarged schematic view of the position D in fig. 4.
In the figure: 1-front die 2-rear die 3-cutter 4-stroke rod 5-control oil cylinder 6-guide block 7-cutter passage 8-cutter seat 9-spacing groove 10-product.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Example (b): as shown in fig. 1 to 5, the in-mold hot cutting structure comprises a mold main body and a hot cutting structure, the mold main body comprises a front mold 1 and a rear mold 2 which are matched with each other, a connecting part of the front mold 1 and the rear mold 2 is provided with a runner for injection molding products and an injection molding cavity for product molding, the hot cutting structure comprises a cutter 3, a stroke rod 4 and a control oil cylinder 5, the hot cutting structure is positioned in the mold main body, one end of the cutter 3 is connected with the runner or the injection molding cavity, the other end of the cutter is connected with the stroke rod 4, the stroke rod 4 is fixedly connected with a piston of the control oil cylinder 5, the hot cutting structure is provided with three parts on the mold, the rear mold 2 is provided with a guide block 6, the guide block 6 is fixedly connected with the rear mold 2, a cutter passage 7 is arranged between the guide block 6 and the rear mold 2, the cutter 3 is communicated with the runner or the injection molding cavity by penetrating through the cutter passage 7, be equipped with the spacing groove 9 that is used for restricting the 8 displacement volumes of cutter seat on the back mould 2, cutter seat 8 and cutter 3 fixed connection, the one end that the cutter was kept away from to cutter seat 8 is connected with trip bar 4, and wherein, the cutter 3 that is located the runner position is rectangular form, and guide block 6 and back mould 2 are located the both ends of cutter 3 respectively, and the cutter 3 that is located the chamber position of moulding plastics is cyclic annular, and guide block 6 is located annular cutter 3's intermediate position.
The hot cutting structure composed of the cutter 3, the stroke rod 4 and the control oil cylinder 5 can achieve the effect of hot cutting in the mould through the control of the control oil cylinder 5 on the cutter 3, the thickness of the cutter in the scheme is smaller, the influence on the product forming in the injection mould cavity can be avoided, the arrangement of a plurality of hot cutting structures can simultaneously carry out hot cutting actions on different positions of the product, the cutter 3 at the position of a flow channel can directly cut off a material handle at a glue inlet, the subsequent workload is reduced, the cutter 3 at the position of the injection mould cavity can cut off annular waste materials during the plastic forming, the appearance quality of the product is improved, the arrangement of the control oil cylinder 5 can realize the control on the cutter 3, the running stability is ensured, the arrangement of the guide block 6 can ensure the running track of the cutter 3 under the condition of not influencing the whole mould, simultaneously, the liquid plastic is prevented from flowing into the cutter passage 7, promote the stability of structure, the design of cutter holder 8 and spacing groove 9 can control the displacement volume of cutter 3, avoids cutter 3 and front mould 1 to bump, prolongs the life of mechanism and mould.
The product 10 of the mold is provided with a through hole structure, the traditional design method is adopted, the through hole position is realized through the conjunction of the front mold and the rear mold when the mold is designed, so that the front mold and the rear mold are in contact with each other at the through hole when the mold is closed, the precision requirement of the mold is extremely high, the mold is damaged due to the fact that the conjunction degree is not high frequently, meanwhile, due to the fact that when plastic is molded, molten plastic can flow around the two ends of the through hole position, welding lines can inevitably occur on the product, the appearance of the product is affected, the annular cutter can be prevented from occurring due to the arrangement of the annular cutter in the embodiment, and the appearance quality of the product is greatly improved.
Claims (6)
1. The utility model provides a structure is surely to mould heat, includes mould main part and earnestly structure, characterized by, the mould main part in, the junction of front mould and back mould is equipped with the runner that is used for injection moulding product and the fashioned chamber of moulding plastics of product, earnestly structure include cutter, stroke pole and control cylinder, earnestly structure be located the mould main part, the one end of cutter links to each other with runner or the chamber of moulding plastics, the other end and the stroke pole of cutter are connected, the piston fixed connection of stroke pole and control cylinder.
2. The in-mold hot-cutting structure as claimed in claim 1, wherein a plurality of the hot-cutting structures are arranged on the same mold.
3. The in-mold hot cutting structure as claimed in claim 1, wherein the control cylinder is a control oil cylinder or a control air cylinder.
4. The in-mold hot cutting structure as claimed in claim 1, wherein the rear mold is provided with a guide block, the guide block is fixedly connected with the rear mold, a cutter passage is arranged between the guide block and the rear mold, and the cutter passes through the cutter passage and is communicated with the flow channel or the injection molding cavity.
5. The in-mold hot cutting structure as claimed in claim 1, wherein a cutter seat is provided at a joint of the cutter and the stroke rod, the rear mold is provided with a limit groove for limiting a displacement amount of the cutter seat, the cutter seat is fixedly connected with the cutter, and an end of the cutter seat away from the cutter is connected with the stroke rod.
6. The in-mold hot cutting structure as claimed in claim 4, wherein the cutter is ring-shaped, and the guide block is located at a middle position of the ring-shaped cutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920334818.5U CN210174121U (en) | 2019-03-15 | 2019-03-15 | Hot cutting structure in mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920334818.5U CN210174121U (en) | 2019-03-15 | 2019-03-15 | Hot cutting structure in mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210174121U true CN210174121U (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920334818.5U Active CN210174121U (en) | 2019-03-15 | 2019-03-15 | Hot cutting structure in mould |
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| CN (1) | CN210174121U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111421771A (en) * | 2020-04-23 | 2020-07-17 | 山西一饭科技有限公司 | Plastic precision injection molding processing equipment |
| CN113478745A (en) * | 2021-07-10 | 2021-10-08 | 上海占瑞模具设备有限公司 | Hot-cutting hot runner laminated injection mold in belt mold |
-
2019
- 2019-03-15 CN CN201920334818.5U patent/CN210174121U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111421771A (en) * | 2020-04-23 | 2020-07-17 | 山西一饭科技有限公司 | Plastic precision injection molding processing equipment |
| CN113478745A (en) * | 2021-07-10 | 2021-10-08 | 上海占瑞模具设备有限公司 | Hot-cutting hot runner laminated injection mold in belt mold |
| CN113478745B (en) * | 2021-07-10 | 2022-09-09 | 上海占瑞模具设备有限公司 | Hot-cutting hot runner laminated injection mold in belt mold |
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