CN215750461U - Injection mold for machining traceless product - Google Patents
Injection mold for machining traceless product Download PDFInfo
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- CN215750461U CN215750461U CN202121472075.1U CN202121472075U CN215750461U CN 215750461 U CN215750461 U CN 215750461U CN 202121472075 U CN202121472075 U CN 202121472075U CN 215750461 U CN215750461 U CN 215750461U
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Abstract
The utility model relates to an injection mold for processing traceless products, wherein a lower mold core is embedded in a B plate, two square irons are arranged between the B plate and a square iron fixing plate and are respectively arranged at two opposite sides of the B plate to form an ejection space capable of enabling a top plate to move up and down, an ejector pin is embedded in the top plate, a lower mold bottom plate is fixed below the square iron fixing plate, a feeding hole of a feeding pipe is fixed on the lower mold bottom plate, a discharging hole is a point pouring hole and is positioned at the upper part of the lower mold core, and an oil cylinder is reversely arranged on the B plate and is used for reversely driving the top plate to move up and down. According to the injection mold for processing the traceless product, the material injection pipe is arranged on the lower mold, the reverse oil cylinder is arranged on the plate B of the lower mold for reverse drawing and ejection, so that material injection and ejection are reasonably realized on the same side of the product, the material injection trace and the ejection trace are positioned on the same side, the traceless requirement on the other side is met, the product quality is improved, and the working space of the mold is saved.
Description
Technical Field
The utility model belongs to the technical field of complex and precise mold manufacturing, and particularly relates to an injection mold for machining traceless products.
Background
The mold is an indispensable important tool in injection molding, and the injection molding is a processing method for injecting hot-melt plastic materials into a closed cavity with a required shape in the mold at a high speed, opening the mold to eject a solidified plastic product after the plastic materials are cooled and solidified, so as to obtain a molded product. The injection molding processing method has the characteristics of low molding cost, short molding period, simple molding process, easiness in molding of plastic products with complex shapes and the like, so that the injection molding processing method is widely applied to the field of plastic products.
At present, most injection molding products have injection traces on one side and ejection traces on the other side during injection molding, and when the requirements of no trace on one side of some injection molding products exist, a conventional mold is often difficult to realize.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problem, the utility model provides an injection mold for machining a traceless product, which is used for solving the problem that one side of the injection product is difficult to be traceless in the prior art.
The utility model provides an injection mold for no trace product processing, including last mould component and lower mould component, lower mould component is along first direction departure last mould component when the mould die sinking, lower mould component includes the B board, lower mould benevolence, two square irons, the thimble, the roof, the square iron fixed plate, lower mould bottom plate, annotate material pipe and hydro-cylinder, lower mould benevolence inlays to be established in the B board, two square irons set up between B board and square iron fixed plate, and locate relative first side and third side on the B board separately, the B board, two square irons and square iron fixed plate form ejecting space jointly, the roof can set up in ejecting space along first direction with reciprocating, the embedding of thimble is established in the roof, lower mould bottom plate fixes the one side of keeping away from the B board on the square iron fixed plate, annotate the material pipe and fix on lower mould bottom plate, annotate material pipe and parallel to first direction setting and pass lower mould bottom plate, square iron fixed plate, roof in proper order, The discharging port of the material injection pipe is a point pouring port and is located on the upper portion of the lower die core, the material inlet of the material injection pipe is located at the bottom of the lower die bottom plate, the oil cylinder is reversely arranged on the B plate, and a piston rod of the oil cylinder is arranged at one end, far away from the upper die assembly, of the oil cylinder and is used for driving the top plate to move in the ejection space.
Preferably, the oil cylinder comprises two oil cylinders which are respectively fixed on the second side and the fourth side which are opposite to each other on the B plate.
Preferably, the top plate includes extension portions on two sides, the extension portions on two sides respectively exceed the second side and the fourth side of the B plate, and the piston rods of the two oil cylinders are respectively connected to the extension portions on two sides in a one-to-one correspondence manner.
Preferably, the top plate comprises a thimble bottom plate and a thimble panel, the thimble bottom plate is positioned on one side of the thimble panel far away from the B plate, the fixed end of the thimble is embedded in the thimble panel, and the fixed end surface of the thimble is tightly attached to the upper end surface of the thimble bottom plate.
Preferably, the extending direction of the tube body of the material injection tube is parallel to the first direction X and is perpendicular to the plate B.
Preferably, the ejector pins are arranged in a plurality and symmetrically distributed around the material injection pipe.
The preferred, lower mould bottom plate is including annotating material pipe mounting panel and lower mould fixed plate, annotates and expects that the pipe mounting panel is located between square iron fixed plate and the lower mould fixed plate for install the feed inlet of annotating the material pipe.
Preferably, the lower die assembly further comprises an ejection limiting nail, and the ejection limiting nail is fixed on the upper portion of the top plate, located between the top plate and the plate B and used for limiting the ejection position of the ejector pin.
The preferred, lower mould subassembly still includes the rubbish nail, and the rubbish nail is fixed on the upper portion of square iron fixed plate, and is located between roof and the square iron fixed plate for the guarantee thimble can normally reset.
Preferably, the lower die assembly further comprises a supporting head, the supporting head penetrates through the top plate, and two ends of the supporting head are respectively arranged on the B plate and the square iron fixing plate in a supporting mode.
Compared with the prior art, the injection mold for processing the traceless product, provided by the utility model, has the advantages that the material injection pipe is arranged on the lower mold, the reverse oil cylinder is arranged on the B plate of the lower mold for reverse drawing and ejection, so that the material injection and ejection on the same side of the product are reasonably realized, the material injection trace and the ejection trace are positioned on the same side, the traceless requirement on the other side is met, the product quality is improved, and meanwhile, the working space of the mold is saved due to the arrangement mode of the reverse oil cylinder.
Drawings
Fig. 1 is a schematic structural view of an injection mold for processing a traceless product according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an injection mold for processing a traceless product at another view angle according to an embodiment of the present invention
Fig. 3 is a schematic structural diagram of an injection mold for processing a traceless product according to another view angle in the embodiment of the present invention.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1, 2 and 3, an injection mold 100 for processing a traceless product includes an upper mold assembly 1 and a lower mold assembly 2.
Lower die assembly 2 is moved away from upper die assembly 1 in a first direction X as the mold is opened, as shown in fig. 1 and 2, with lower die assembly 2 being located below upper die assembly 1.
The lower die assembly 2 comprises a B plate 21, a lower die core 22, two square irons 23, an ejector pin 24, a top plate 25, a square iron fixing plate 26, a lower die bottom plate 27, a material injection pipe 28 and an oil cylinder 29.
The lower die core 22 is embedded in the B plate 21, the two square irons 23 are arranged between the B plate 21 and the square iron fixing plate 26 and are respectively arranged on a first side 211 and a third side 213 which are opposite to each other on the B plate 21, the two square irons 23 and the square iron fixing plate 26 jointly form an ejection space, the top plate 25 is arranged in the ejection space in a manner of moving up and down along a first direction X, the fixed end of the ejector pin 24 is embedded in the top plate 25, the lower die base plate 27 is fixed below the square iron fixing plate 26, namely, on the side far away from the B plate, the material injection pipe 28 is fixed on the lower die base plate 27, the material injection pipe 28 is arranged in parallel to the first direction X and sequentially penetrates through the lower die base plate 27, the square iron fixing plate 26, the top plate 25, the B plate 21 and the lower die core 22 from bottom to top, the material injection pipe 28 is provided with a point gate at a material outlet and is arranged at the upper part of the lower die core 22, the material injection pipe 28 is arranged at the bottom of the lower die base plate 27, the oil cylinder 29 is reversely arranged on the B plate 21, namely, the piston rod of the cylinder 29 is provided at an end of the cylinder 29 remote from the upper die assembly 1 for driving the top plate 25 in reverse to move up and down in the ejection space. Since the injection tube 28 is injected from the lower mold, it is inconvenient to push the top plate 25 using a top stick. Because the cylinder body of the oil cylinder 29 has a certain length, the design that the oil cylinder 29 is arranged in the forward direction to push the top plate 25 is opposite to the design that the oil cylinder 29 is arranged on the B plate 21 in the reverse direction to pull the top plate 25 can prevent the oil cylinder 29 from exceeding the height of a mold, and the product molding period is shortened.
Alternatively, as shown in fig. 1 and 3, the cylinder 29 includes two cylinders, which are fixed to the second side 212 and the fourth side 214 of the B plate 21. The arrangement can make the stress on the top plate 25 balanced, and can provide more stable power for the ejector pin 24.
Preferably, as shown in fig. 1 and 3, the top plate 25 includes two side extensions, the two side extensions respectively extend beyond the second side 212 and the fourth side 214 of the B plate 21, and the piston rods of the two cylinders 29 are respectively connected to the two side extensions in a one-to-one correspondence. The arrangement facilitates the connection between the oil cylinder 29 and the top plate 25, and the structure is simple and easy to implement.
Optionally, the top plate 25 includes a thimble base plate 251 and a thimble panel 252, the thimble base plate 251 is located below the thimble panel 252, a lower end of the thimble 24 is embedded in the thimble panel 252, and a lower end surface of the thimble 24 is tightly attached to an upper end surface of the thimble base plate 251. This arrangement facilitates the installation and removal of the spike 24.
Optionally, the tube extending direction of the injecting tube 28 is parallel to the first direction X and perpendicular to the B plate 21. The material injection pipe 28 arranged in this way is firmly fixed, the material injection is stable and the length of the pipe body is shortest.
Optionally, the plurality of thimbles 24 are symmetrically distributed around the material injection pipe 28. Thus, enough and uniform force can be provided, the connection between the plastic product and the waste material can be better broken, and the material removal can be realized.
Optionally, the lower die base plate 27 includes a material injection pipe mounting plate 271 and a lower die fixing plate 272, and the material injection pipe mounting plate 271 is located between the square iron fixing plate 26 and the lower die fixing plate 272 and is used for installing a material inlet of the material injection pipe 28. Such a double plate arrangement facilitates the mounting and fixing of the filling pipe 28.
Optionally, as shown in fig. 2, the lower die assembly 2 further includes an ejection limiting nail 201, and the ejection limiting nail 201 is fixed on the upper portion of the top plate 25 and located between the top plate 25 and the B plate 21, and is used for limiting the ejection position of the ejector pin 24. This allows the ejector pin 24 to be quickly and easily set in its ejection position. Preferably, a plurality of ejection limit pins 201 are symmetrically arranged. Optionally, as shown in fig. 2, the lower die assembly 2 further includes a trash pin 202, and the trash pin 202 is fixed on the upper portion of the square iron fixing plate 26 and located between the top plate 25 and the square iron fixing plate 26, for ensuring that the thimble 24 can be reset normally. The garbage pin 202 is used for generating a small gap between the top plate 25 and the square iron fixing plate 26, so that the thimble 24 and the lower mold core 22 cannot be reset when garbage exists between the top plate and the square iron fixing plate. Preferably, the trash pins 202 are symmetrically disposed in plurality.
Optionally, as shown in fig. 2 and fig. 3, the lower die assembly 2 further includes a support head 203, the support head 203 is disposed through the top plate 25, two ends of the support head 203 respectively prop against the B plate 21 and the square iron fixing plate 26, one end of the support head 203 props against the lower surface of the B plate 21, and the other end of the support head 203 is fixed on the upper surface of the square iron fixing plate 26. This prevents the B plate 21 from deforming, and prolongs the service life of the mold. Preferably, the chaplet 203 is symmetrically provided in plurality.
The ejection principle of an embodiment of the utility model is as follows:
before the upper die assembly 1 and the lower die assembly 2 are assembled, the oil cylinder 29 firstly jacks the top plate 25 to the square iron fixing plate 26 along the first direction X, so that the ejector pin 24 is reset, and then the upper die assembly 1 and the lower die assembly 2 start to be assembled and injected. After the injection molding is finished, after the upper mold assembly 1 and the lower mold assembly 2 are completely separated, the oil cylinder 29 pulls back the top plate 25, the ejector pin 24 is driven by the top plate 25 to eject the product, and meanwhile, the connection between the product and the waste material is broken.
According to the injection mold for processing the traceless product, the material injection pipe is arranged on the lower mold, the reverse oil cylinder is arranged on the plate B of the lower mold for reverse drawing and ejection, so that material injection and ejection are reasonably realized on the same side of the product, the material injection trace and the ejection trace are positioned on the same side, the traceless requirement on the other side is met, the product quality is improved, and the working space of the mold is saved.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the utility model. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (10)
1. An injection mold for processing traceless products comprises an upper mold component and a lower mold component, and is characterized in that the lower mold component leaves the upper mold component along a first direction when the mold is opened, and comprises a B plate, a lower mold core, two square irons, an ejector pin, a top plate, a square iron fixing plate, a lower mold bottom plate, a material injection pipe and an oil cylinder;
the lower die core is embedded in the plate B;
the two square irons are arranged between the B plate and the square iron fixing plate and are respectively arranged on a first side and a third side which are opposite to each other on the B plate, and the B plate, the two square irons and the square iron fixing plate form an ejection space together;
the top plate is movably arranged in the ejection space along the first direction;
the fixed end of the thimble is embedded in the top plate;
the lower die bottom plate is fixed on one side of the square iron fixing plate, which is far away from the B plate;
the material injection pipe is fixed on the lower die bottom plate, arranged in parallel to the first direction and sequentially penetrates through the lower die bottom plate, the square iron fixing plate, the top plate, the plate B and the lower die core, a material outlet of the material injection pipe is a point pouring gate and is positioned at the upper part of the lower die core, and a material inlet of the material injection pipe is positioned at the bottom of the lower die bottom plate;
the oil cylinder is arranged on the plate B, and a piston rod of the oil cylinder is arranged at one end of the oil cylinder, which is far away from the upper die assembly, and is used for driving the top plate to move in the ejection space.
2. An injection mold for traceless product processing as claimed in claim 1, wherein said cylinder comprises two cylinders fixed to said second and fourth opposite sides of said B plate.
3. The injection mold for machining a traceless product of claim 2, wherein the top plate comprises two side extensions, the two side extensions respectively extend beyond the second side and the fourth side of the B plate, and the piston rods of the two cylinders are respectively connected to the two side extensions in a one-to-one correspondence.
4. The injection mold of claim 1, wherein the top plate comprises a thimble base plate and a thimble panel, the thimble base plate is located on a side of the thimble panel away from the B plate, a fixed end of the thimble is embedded in the thimble panel, and a fixed end surface of the thimble is tightly attached to an upper end surface of the thimble base plate.
5. The injection mold for machining a traceless product of claim 1, wherein a tube body extending direction of the injection tube is parallel to the first direction X and perpendicular to the plate B.
6. The injection mold for traceless product processing as claimed in claim 1, wherein the plurality of pins are symmetrically distributed around the injection tube.
7. The injection mold for traceless product processing as claimed in claim 1, wherein the lower mold base plate comprises a material injection pipe mounting plate and a lower mold fixing plate, the material injection pipe mounting plate is located between the square iron fixing plate and the lower mold fixing plate and is used for installing a material inlet of the material injection pipe.
8. The injection mold for traceless product processing as claimed in claim 1, wherein the lower mold assembly further comprises an ejection limiting pin fixed on the top plate and located between the top plate and the B plate for limiting an ejection position of the ejector pin.
9. The injection mold for traceless product processing as claimed in claim 1, wherein the lower mold assembly further comprises a garbage nail, the garbage nail is fixed on the square iron fixing plate and located between the top plate and the square iron fixing plate for ensuring that the ejector pin can be normally reset.
10. The injection mold for traceless product processing as claimed in claim 1, wherein the lower mold assembly further comprises a supporting head, the supporting head is disposed through the top plate, and two ends of the supporting head are respectively disposed on the B plate and the square iron fixing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121472075.1U CN215750461U (en) | 2021-06-30 | 2021-06-30 | Injection mold for machining traceless product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121472075.1U CN215750461U (en) | 2021-06-30 | 2021-06-30 | Injection mold for machining traceless product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215750461U true CN215750461U (en) | 2022-02-08 |
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ID=80103109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121472075.1U Active CN215750461U (en) | 2021-06-30 | 2021-06-30 | Injection mold for machining traceless product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215750461U (en) |
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2021
- 2021-06-30 CN CN202121472075.1U patent/CN215750461U/en active Active
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