CN213618121U - In-mold die-cut water gap excess material injection mold - Google Patents
In-mold die-cut water gap excess material injection mold Download PDFInfo
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- CN213618121U CN213618121U CN202021973558.5U CN202021973558U CN213618121U CN 213618121 U CN213618121 U CN 213618121U CN 202021973558 U CN202021973558 U CN 202021973558U CN 213618121 U CN213618121 U CN 213618121U
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Abstract
The utility model discloses a die-cut mouth of a river clout injection mold in mould, include: the upper template is provided with a shape insert, the center of the shape insert is provided with a main runner, and the end part of the main runner is a water gap; the lower template is connected to the lower side of the upper template and provided with a lower insert, the lower insert is matched with the outline insert to form a product cavity, and the lower insert is provided with a central hole; the annular cutter is positioned in the central hole, the lower end of the annular cutter is connected with a cutter template, and the cutter template can move up and down; the hydraulic oil cylinder is fixedly connected to the lower template and used for pushing the cutter template to move upwards; and the resetting mechanism is connected with the cutter template and is used for pushing the cutter template to move downwards for resetting. Injecting the molten plastic into a product cavity, pushing a cutter template and an annular cutter to move upwards by a hydraulic oil cylinder, and cutting off the water gap excess material by the annular cutter to realize the separation of the product and the water gap excess material in the mold; after the pressure of the hydraulic oil cylinder is relieved, the reset mechanism pushes the cutter template and the annular cutter to automatically move downwards for resetting.
Description
Technical Field
The utility model relates to a plastic mold technical field, in particular to die-cut mouth of a river clout injection mold in mould.
Background
Injection molding is currently the most common method of plastic molding. The injection molding usually adopts structures such as a needle-sealing hot runner, a semi-hot runner, a cold runner and the like, and due to the product structure, part of products can only be injected by the cold runner, the water gap excess material of the products is in a round cake shape, the water gap excess material is still remained after the products are molded and demoulded and needs to be cut off by manpower or auxiliary equipment, the production cost, the labor intensity and the reject ratio are high, and the product appearance can also influence the attractiveness due to traces left by post-processing.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a die-cut mouth of a river clout injection mold in mould cuts mouth of a river clout in the mould before the die sinking, promotes production efficiency.
According to the utility model discloses die-cut mouth of a river clout injection mold in mould, include: the upper template is provided with a shape insert, the center of the shape insert is provided with a main runner, and the end part of the main runner is a water gap; the lower template is connected to the lower side of the upper template and provided with a lower insert, the lower insert is matched with the outline insert to form a product cavity, and the lower insert is provided with a central hole; the annular cutter is positioned in the central hole, the lower end of the annular cutter is connected with a cutter template, and the cutter template can move up and down; the hydraulic oil cylinder is fixedly connected to the lower template and used for pushing the cutter template to move upwards; and the resetting mechanism is connected with the cutter template and is used for pushing the cutter template to move downwards for resetting.
According to the utility model discloses die-cut mouth of a river clout injection mold in mould has following beneficial effect at least: molten plastic is injected into a product cavity through a main runner, after pressure maintaining, a hydraulic oil cylinder pushes a cutter template to move upwards, the cutter template drives an annular cutter to move upwards, and a nozzle excess material is cut through the annular cutter, so that the product and the nozzle excess material are separated in the mold, manual or auxiliary equipment is omitted for cutting the nozzle excess material after demolding, the production efficiency is improved, the labor intensity is reduced, and the yield of the product is improved; after the pressure of the hydraulic oil cylinder is relieved, the reset mechanism pushes the cutter template to move downwards, and the cutter template drives the annular cutter to move downwards for resetting so as to prepare for next injection molding.
According to the utility model discloses a few embodiments, canceling release mechanical system is the spring, the cutter template is provided with and is used for holding the holding tank of spring.
According to the utility model discloses a some embodiments, canceling release mechanical system is eight at least groups, eight at least groups canceling release mechanical system centers on annular cutter circumference equipartition.
According to the utility model discloses a some embodiments, the center of annular cutter is provided with the thimble hole that link up, be provided with mouth of a river clout thimble in the thimble hole.
According to some embodiments of the utility model, the lower extreme of mouth of a river clout thimble is connected with thimble template, thimble template is connected with the second hydro-cylinder.
According to the utility model discloses a some embodiments, hydraulic cylinder is at least two, at least two hydraulic cylinder centers on annular cutter circumference equipartition.
According to the utility model discloses a some embodiments, be provided with the high-pressure oil circuit in the lower bolster, the high-pressure oil circuit is connected hydraulic cylinder.
According to the utility model discloses a some embodiments still include the controller, controller electric connection has high-pressure oil pump, high-pressure oil pump's output with high-pressure oil circuit intercommunication.
According to the utility model discloses a some embodiments, the middle part of appearance mold insert is provided with the spacing mold insert of cutter, the spacing mold insert of cutter is used for injecing the distance that the annular cutter shifts up.
According to the utility model discloses a some embodiments, the inside of lower bolster is provided with the cutter bottom plate, the cutter bottom plate is located the below of cutter template, the cutter bottom plate is used for injecing the distance that the annular cutter moved down.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a front view of an in-mold die-cut gate residue injection mold according to some embodiments of the present invention;
fig. 2 is a right side view of an in-mold die cut gate flash injection mold according to some embodiments of the present invention;
fig. 3 is a cross-sectional view of a ring cutter according to some embodiments of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or state relationship referred to in the orientation description, such as the directions of up, down, front, back, left, right, etc., is the orientation or state relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the description of the present invention, if there are first and second descriptions for distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 and 2, some embodiments of the present invention provide an in-mold die-cut gate clout injection mold, including: the upper template 100 is provided with a contour insert 110, a main flow passage 111 is arranged at the center of the contour insert 110, and a water gap 112 is arranged at the end part of the main flow passage 111; the lower template 200 is connected to the lower side of the upper template 100, the lower template 200 is provided with a lower insert 210, the lower insert 210 is used for molding a parting surface and an inner side wall of a product, a split structure can be adopted, the lower insert 210 and the outline insert 110 are matched to form a product cavity, the upper template 100 can move relative to the lower template 200 to realize mold opening and mold closing, and the lower insert 210 is provided with a central hole; the annular cutter 300 is positioned in the central hole, the lower end of the annular cutter 300 is connected with a cutter template 310, and the cutter template 310 can move up and down; the hydraulic oil cylinder 400 is fixedly connected to the lower template 200, a piston rod of the hydraulic oil cylinder 400 is connected with a transmission rod 410, the upper end of the transmission rod 410 is in contact with the cutter template 310, and the hydraulic oil cylinder 400 is used for pushing the cutter template 310 to move upwards; the reset mechanism 500 is connected to the cutter template 310, and the reset mechanism 500 is used for pushing the cutter template 310 to move downwards for resetting.
The operation flow of the injection mold for punching the excess material of the water gap in the mold is as follows: molten plastic is injected into a product cavity through the main runner 111, after pressure maintaining, the hydraulic oil cylinder 400 pushes the cutter template 310 to move upwards through the transmission rod 410, the cutter template 310 drives the annular cutter 300 to move upwards, and the annular cutter 300 cuts the residual material of the water gap in the water gap 112, so that the product and the residual material of the water gap in the mold are separated, manual work or auxiliary equipment for cutting off the residual material of the water gap after demolding is omitted, the production efficiency is improved, the labor intensity is reduced, and the yield of the product is improved; after the hydraulic oil cylinder 400 releases the pressure, the reset mechanism 500 pushes the cutter template 310 to move downwards, and the cutter template 310 drives the annular cutter 300 to move downwards for resetting, so that preparation is made for next injection molding production, and continuous production is facilitated.
Referring to fig. 1 and 2, according to some embodiments of the present invention, the reset mechanism 500 is a spring, and the cutter template 310 is provided with a receiving groove for receiving the spring. When the hydraulic oil cylinder 400 pushes the cutter template 310 to move upwards, the spring is compressed to store energy, and after the hydraulic oil cylinder 400 releases the pressure, the spring releases the energy to push the cutter template 310 to move downwards, so that the automatic reset is realized, and the automatic reset device is simple in structure, reliable and durable.
Referring to fig. 1 and 2, according to some embodiments of the present invention, the reset mechanism 500 is at least eight groups, preferably eight to thirty-six groups, and the at least eight groups of reset mechanisms 500 are circumferentially and uniformly distributed around the ring cutter 300. The multiple reset mechanisms 500 improve sufficient driving force and ensure that the cutter template 310 is reset timely and accurately.
Referring to fig. 3, according to some embodiments of the present invention, the center of the annular cutter 300 is provided with the thimble hole 301 that link up, and the upper end of the annular cutter 300 is the edge of annular cutting edge in order to cut the mouth of a river clout, is provided with mouth of a river clout thimble 320 in the thimble hole 301, and mouth of a river clout thimble 320 is used for ejecting mouth of a river clout after the die sinking, and the automatic stripping improves production efficiency.
Referring to fig. 1 and 2, according to some embodiments of the present invention, the lower end of the nozzle residue thimble 320 is connected to a thimble template 330, and the thimble template 330 is connected to a second cylinder (not shown in the figure). By adopting the structure, the second oil cylinder drives the thimble template 330 to move so as to drive the nozzle residue thimble 320 to move up and down, thereby realizing the ejection of the nozzle residue.
Referring to fig. 1, according to some embodiments of the present invention, there are at least two hydraulic cylinders 400, preferably two to sixteen hydraulic cylinders 400, at least two hydraulic cylinders 400 circumferentially and uniformly distributed around the ring cutter 300. The plurality of hydraulic cylinders 400 improve a balanced and sufficient pushing force to ensure that the cutter template 310 stably pushes the cutter template 310.
Referring to fig. 1, according to the utility model discloses a some embodiments are provided with high-pressure oil circuit 420 in the lower bolster 200, and a plurality of hydraulic cylinder 400 are connected to high-pressure oil circuit 420, supply oil to a plurality of hydraulic cylinder 400 through high-pressure oil circuit 420 in step, and a plurality of hydraulic cylinder 400 act in step guarantees balancedly, promotes cutter template 310 steadily.
According to the utility model discloses a some embodiments still include controller (not shown in the figure), controller electric connection has high-pressure oil pump (not shown in the figure), and high-pressure oil pump's output and high-pressure oil circuit 420 communicate. The controller controls the start and stop of the high-pressure oil pump, accurately controls the action of the hydraulic oil cylinder 400, and is more reliable and safer. The timing switch 600 is installed on the outer side surface of the lower template 200, the timing switch 600 is electrically connected to the controller, the touch block 610 is installed on the outer side surface of the upper template 100, when the mold is closed, the touch block 610 touches the timing switch 600 to time, and after the set time is over, the controller controls the high-pressure oil pump to start, so that the hydraulic oil cylinder 400 is driven to enable the annular cutter 300 to move upwards to cut off the residual material of the water gap.
Referring to fig. 1, according to some embodiments of the present invention, the middle part of the shape insert 110 is provided with a cutter limiting insert, which is used to limit the distance of the upward movement of the annular cutter 300, and the annular cutter 300 is matched to cut the nozzle excess material, so as to ensure that the annular cutter 300 accurately cuts the nozzle excess material. The cutter limiting insert is mounted on the contour insert 110, and the main runner 111 and the water gap 112 are arranged on the cutter limiting insert.
Referring to fig. 1, according to some embodiments of the present invention, the inside of the lower template 200 is provided with the cutter base plate 220, the cutter base plate 220 is located below the cutter template 310, and the cutter base plate 220 is used for limiting the distance that the annular cutter 300 moves down, so as to ensure that the annular cutter 300 accurately resets.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge range of the ordinary skilled person in the art, and all fall into the protection scope of the present invention.
Claims (10)
1. The utility model provides a die-cut mouth of a river clout injection mold in mould which characterized in that includes:
the upper template is provided with a shape insert, the center of the shape insert is provided with a main runner, and the end part of the main runner is a water gap;
the lower template is connected to the lower side of the upper template and provided with a lower insert, the lower insert is matched with the outline insert to form a product cavity, and the lower insert is provided with a central hole;
the annular cutter is positioned in the central hole, the lower end of the annular cutter is connected with a cutter template, and the cutter template can move up and down;
the hydraulic oil cylinder is fixedly connected to the lower template and used for pushing the cutter template to move upwards;
and the resetting mechanism is connected with the cutter template and is used for pushing the cutter template to move downwards for resetting.
2. The in-mold die-cut nozzle residue injection mold according to claim 1, wherein the reset mechanism is a spring, and the cutter template is provided with a receiving groove for receiving the spring.
3. The in-mold die-cut nozzle residue injection mold of claim 2, wherein the number of the reset mechanisms is at least eight, and the at least eight reset mechanisms are uniformly distributed around the circumference of the annular cutter.
4. The in-mold die-cutting nozzle residue injection mold according to claim 1, wherein a through thimble hole is formed in the center of the annular cutter, and a nozzle residue thimble is arranged in the thimble hole.
5. The in-mold die-cutting nozzle residue injection mold according to claim 4, wherein the lower end of the nozzle residue ejector pin is connected with an ejector pin template, and the ejector pin template is connected with a second oil cylinder.
6. The in-mold die-cutting nozzle residue injection mold according to claim 1, wherein at least two hydraulic cylinders are provided, and at least two hydraulic cylinders are circumferentially and uniformly distributed around the annular cutter.
7. The injection mold for die-cutting the nozzle residue in the mold as claimed in claim 6, wherein a high-pressure oil path is arranged in the lower template, and the high-pressure oil path is connected with the hydraulic oil cylinder.
8. The in-mold die-cut gate residue injection mold according to claim 7, further comprising a controller, wherein the controller is electrically connected with a high-pressure oil pump, and an output end of the high-pressure oil pump is communicated with the high-pressure oil path.
9. The in-mold die-cutting nozzle residue injection mold according to claim 1, wherein a cutter limiting insert is arranged in the middle of the contour insert and used for limiting the upward moving distance of the annular cutter.
10. The in-mold die-cut nozzle residue injection mold according to claim 1, wherein a cutter bottom plate is arranged inside the lower mold plate, the cutter bottom plate is located below the cutter mold plate, and the cutter bottom plate is used for limiting the downward moving distance of the annular cutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021973558.5U CN213618121U (en) | 2020-09-10 | 2020-09-10 | In-mold die-cut water gap excess material injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021973558.5U CN213618121U (en) | 2020-09-10 | 2020-09-10 | In-mold die-cut water gap excess material injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213618121U true CN213618121U (en) | 2021-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021973558.5U Active CN213618121U (en) | 2020-09-10 | 2020-09-10 | In-mold die-cut water gap excess material injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213618121U (en) |
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2020
- 2020-09-10 CN CN202021973558.5U patent/CN213618121U/en active Active
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