CN216182389U - Injection molding machine - Google Patents
Injection molding machine Download PDFInfo
- Publication number
- CN216182389U CN216182389U CN202122396772.XU CN202122396772U CN216182389U CN 216182389 U CN216182389 U CN 216182389U CN 202122396772 U CN202122396772 U CN 202122396772U CN 216182389 U CN216182389 U CN 216182389U
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- hot runner
- runner manifold
- injection molding
- molding machine
- driving mechanism
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Abstract
The utility model provides an injection molding machine, which can inhibit the heat transmission from a hot runner manifold to a driving mechanism under the condition of not arranging an additional component. An injection molding machine for injecting a molten resin into a cavity and forming a molded article, comprising: a hot runner manifold supplying a molten resin to a cavity formed in a mold; the nozzle part is connected with the hot runner manifold and communicated with the cavity; a valve pin that opens or closes the nozzle portion; and the driving mechanism is connected to the hot runner manifold through the fixed seat and drives the valve pin. The fixing base includes: a mounting plate mounted with a driving mechanism; and a support portion connected to the hot runner manifold and supporting the mounting plate, a length of the support portion in an operating direction of the valve pin being longer than a height of the driving mechanism.
Description
Technical Field
The present invention relates to an injection molding machine.
Background
Prior art document 1 discloses an injection molding machine in which a cylinder barrel as a driving mechanism is connected to a hot runner manifold through a fixed base to drive a valve pin to move back and forth with respect to a gate. In order to prevent the sealing part of the cylinder barrel from being degraded by the heat transmitted from the hot runner manifold through the fixing seat, an insulating material is sandwiched between the hot runner manifold and the fastening plate of the barrel, and the hot runner manifold and the fastening plate of the barrel are connected with a cooling part for cooling a mold by an additional component or heat is radiated by circulating cooling water. However, such a configuration requires additional components such as heat-conducting pins and cooling pipes, which inevitably makes the device complicated and bulky.
[ Prior art documents ]
[ patent document ]
[ patent document 1] Japanese patent application laid-open No. H06-049015
SUMMERY OF THE UTILITY MODEL
The utility model provides an injection molding machine, which can inhibit the heat transmission from a hot runner manifold to a driving mechanism under the condition of not arranging an additional component.
The utility model provides an injection molding machine, which is used for injecting molten resin into a cavity and forming a molded product. The injection molding machine includes: a hot runner manifold supplying a molten resin to a cavity formed in a mold; the nozzle part is connected with the hot runner manifold and communicated with the cavity; a valve pin that opens or closes the nozzle portion; and the driving mechanism is connected to the hot runner manifold through the fixed seat and drives the valve pin. The fixing base includes: a mounting plate mounted with a driving mechanism; and a support portion connected to the hot runner manifold and supporting the mounting plate, a length of the support portion in an operating direction of the valve pin being longer than a height of the driving mechanism.
In one embodiment of the utility model, the drive mechanism is mounted on the surface of the mounting plate facing the hot runner manifold.
In one embodiment of the present invention, the mold is fixed to the mold mounting surface, and a driving mechanism is provided in a space formed between the mold and the mold mounting surface, and the driving mechanism is fixed to the hot runner manifold through the mounting plate and the support portion.
In view of the above, the injection molding machine of the present invention can suppress the transfer of heat from the hot runner manifold to the drive mechanism by increasing the length of the heat transfer path from the hot runner manifold. Further, by providing the hot runner manifold and the drive mechanism in the space formed between the mold of the injection molding machine and the mold mounting surface, the injection molding machine apparatus can be designed compactly, and the apparatus can be further miniaturized.
In order to make the aforementioned and other features and advantages of the utility model more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
FIG. 1 is a schematic structural diagram of an injection molding machine according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an injection molding machine according to another embodiment of the present invention.
Description of reference numerals:
10. 20: an injection molding machine;
11: a fixed body;
12: a movable body;
13: a cavity;
14: a hot runner manifold;
15: a drive mechanism;
16: a valve pin;
17: a nozzle portion;
18: a band heater;
19: a heater cover;
100: a fixed seat;
110: mounting a plate;
120: a support portion;
FP: fixing the mounting plate;
FS: a fixed body mounting surface;
GE: a guide member;
and RS: melting the resin;
h2: a length;
h1: a height;
s1, S2: a surface;
t: a route of delivery.
Detailed Description
Fig. 1 is a schematic structural diagram of an injection molding machine according to an embodiment of the present invention. The specific structure of the injection molding machine will be described below with reference to fig. 1.
Referring to fig. 1, in the present embodiment, an injection molding machine 10 according to the present invention is used for injecting a molten resin RS into a cavity 13 to form a molded product. Specifically, as shown in fig. 1, in the present embodiment, the injection molding machine 10 includes a fixed body 11, a movable body 12, a cavity 13, a hot runner manifold 14, a guide GE, a nozzle portion 17, a valve pin 16, and a drive mechanism 15. Specifically, as shown in fig. 1, the injection molding machine 10 injects a molten resin RS into the cavity 13 to form a molded product.
Specifically, as shown in fig. 1, in the present embodiment, the mold for forming the molded article is composed of the stationary body 11 and the movable body 12, the cavity 13 is formed between the stationary body 11 and the movable body 12, and the stationary body 11 is attached to a stationary body attachment surface FS, which is a mold attachment surface and is located on the opposite side of the movable body 12, by a stationary attachment plate FP.
More specifically, as shown in fig. 1, in the present embodiment, a hot runner manifold 14 is located above the fixed body 11, and supplies the molten resin RS into the cavity 13. As shown in fig. 1, a band heater 18 is provided on the outer periphery of the hot runner manifold 14, and a heater cover 19 covers the upper side of the band heater 18 to melt the resin at the upstream end of the hot runner manifold 14. On the other hand, as shown in fig. 1, in the present embodiment, the nozzle portion 17 communicates with the cavity 13 and with the hot runner manifold 14 through the resin flow path 130. The guide piece GE is used to guide the valve pin 16, and the valve pin 16 is used to open or close the nozzle portion 17. The drive mechanism 15 is used to drive the valve pin 16.
For example, in the present embodiment, the driving mechanism 15 can be a cylinder with a piston, which is connected to the hot runner manifold 14 through the fixing base 100 to drive the valve pin 16. More specifically, in the present embodiment, the fixing base 100 includes a mounting plate 110 and a supporting portion 120. As shown in fig. 1, the driving mechanism 15 is mounted on the mounting plate 110 of the fixing base 100, and the supporting portion 120 is connected to the hot runner manifold 14 and supports the mounting plate 110. As shown in fig. 1, the length H2 of the support portion 120 in the operating direction of the valve pin 16 is longer than the height H1 of the drive mechanism 15. In addition, in the present embodiment, the driving mechanism 15 is installed on the surface S1 of the mounting plate 110 facing the hot runner manifold 14, and the driving mechanism 15 is located between the mounting plate 110 of the fixing base 100 and the hot runner manifold 14. In this manner, the drive mechanism 15 can be disposed in the space formed by the support portion 120, the mounting plate 110, and the hot runner manifold 14, and can be fixed to the hot runner manifold 14 via the mounting plate 110 and the support portion 120. Also, the driving mechanism 15 and the hot runner manifold 14 may be provided in an accommodation space between the fixed mounting plate FP and the fixed body 11, that is, in a space formed between the mold and the mold mounting surface.
By providing the hot runner manifold 14 and the drive mechanism 15 in the space formed between the mold of the injection molding machine 10 and the mold mounting surface in this manner, the design of the injection molding machine 10 apparatus can be made compact and compact, and the apparatus can be made compact. Further, by extending the length of the heat transfer path T from the hot runner manifold 14, the heat transfer from the hot runner manifold 14 to the drive mechanism 15 can be suppressed, and the deterioration of the seal portion of the drive mechanism 15 due to the heat transferred from the hot runner manifold 14 through the fixing base 100 can be suppressed, thereby improving the reliability of the apparatus.
Further, as shown in fig. 1, in the present embodiment, the upper portion of the valve pin 16 is connected to the driving mechanism 15 and is guided by the driving mechanism 15, and the lower portion of the valve pin 16 is guided by the guide GE, so that the valve pin 16 can move up and down while being coaxial with the nozzle portion 17 by the driving mechanism 15. In the process of manufacturing a molded product, the injection molding machine 10 can bring the injection molding machine 10 into the mold clamping state shown in fig. 1 by lifting the movable body 12. Next, the drive mechanism 15 raises the valve pin 16, opens the nozzle portion 17, and injects the molten resin RS heated and melted by the band heater 18 from the nozzle portion 17 into the cavity 13 through the hot runner manifold 14 and the resin flow path 130 of the guide GE. After the molten resin RS in the cavity 13 is completely filled, the valve pin 16 is lowered to close the nozzle portion 17. After the resin in the cavity 13 is cooled and solidified, the movable body 12 is lowered and the mold is opened, whereby a molded article can be formed.
It should be noted that the injection molding machine 10 of the present invention does not limit the need to provide the drive mechanism 15 in the space formed by the support portion 120, the mounting plate 110, and the hot runner manifold 14, and can suppress the transfer of heat from the hot runner manifold 14 to the drive mechanism 15 as long as the length of the heat transfer path T from the hot runner manifold 14 can be increased. This will be further explained below in conjunction with fig. 2.
Fig. 2 is a schematic structural view of an injection molding machine according to another embodiment of the present invention. As shown in fig. 2, the injection molding machine 20 of the present embodiment is different from the injection molding machine 10 of fig. 1 in that the driving mechanism 15 is mounted on a surface S2 of the mounting plate 110 facing away from the hot runner manifold 14. In the present embodiment, the injection molding machine 20 eliminates the need for a component such as the fixed mounting plate FP and the fixed body mounting surface FS, and thus the length of the support portion 120 is not limited by space. As shown in fig. 2, the length H2 of the support portion 120 in the operating direction of the valve pin 16 is longer than the height H1 of the drive mechanism 15. The injection molding machine 20 can suppress the heat transfer from the hot runner manifold 14 to the drive mechanism 15 by extending the length of the heat transfer path T from the hot runner manifold 14, and further suppress the deterioration of the seal portion of the drive mechanism 15 due to the heat transferred from the hot runner manifold 14 through the fixing base 100, thereby improving the reliability of the apparatus.
As described above, the injection molding machine according to the present invention can suppress the transfer of heat from the hot runner manifold to the drive mechanism by increasing the length of the heat transfer path from the hot runner manifold. Further, by providing the hot runner manifold and the drive mechanism in the space formed between the mold of the injection molding machine and the mold mounting surface, the injection molding machine apparatus can be designed compactly, and the apparatus can be further miniaturized.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (3)
1. An injection molding machine for injecting a molten resin into a cavity and forming a molded article, comprising:
a hot runner manifold supplying a molten resin to the cavity formed in the mold;
the nozzle part is connected with the hot runner manifold and is communicated with the cavity;
a valve pin that opens or closes the nozzle portion; and
a driving mechanism connected to the hot runner manifold through a fixing seat and driving the valve pin,
the fixing base includes:
a mounting plate on which the driving mechanism is mounted; and
a support portion connected to the hot runner manifold and supporting the mounting plate,
the length of the support portion in the operating direction of the valve pin is longer than the height of the drive mechanism.
2. An injection molding machine as claimed in claim 1, wherein said drive mechanism is mounted on a surface of said mounting plate facing said hot runner manifold.
3. An injection molding machine as claimed in claim 2,
the mould is fixed on the mould mounting surface,
and a driving mechanism is arranged in a space formed between the die and the die mounting surface, and the driving mechanism is fixed on the hot runner manifold through the mounting plate and the supporting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122396772.XU CN216182389U (en) | 2021-09-30 | 2021-09-30 | Injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122396772.XU CN216182389U (en) | 2021-09-30 | 2021-09-30 | Injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216182389U true CN216182389U (en) | 2022-04-05 |
Family
ID=80861344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122396772.XU Active CN216182389U (en) | 2021-09-30 | 2021-09-30 | Injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216182389U (en) |
-
2021
- 2021-09-30 CN CN202122396772.XU patent/CN216182389U/en active Active
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