CN224103432U - Injection molding device and injection molding machine - Google Patents
Injection molding device and injection molding machineInfo
- Publication number
- CN224103432U CN224103432U CN202520648889.8U CN202520648889U CN224103432U CN 224103432 U CN224103432 U CN 224103432U CN 202520648889 U CN202520648889 U CN 202520648889U CN 224103432 U CN224103432 U CN 224103432U
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- mold
- injection molding
- runner
- cutting
- mounting hole
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Abstract
本实用新型公开了一种注塑装置及注塑机，注塑装置包括：模具单元和切割单元，模具单元包括相对布置的第一模具和第二模具，第一模具和第二模具在相对的侧面上分别形成有第一成形槽和第二成形槽，第一成形槽包括若干相互连通的第一型腔和流道，第二成形槽包括若干和第一型腔一一对应的第二型腔；切割单元包括若干切刀和切割驱动机构，切刀分别朝向第一型腔和流道的连接处布置，切割驱动机构与各个切刀连接以驱动各个切刀同步运动。注塑机包括注塑装置。与现有技术相比，本实用新型提供的注塑装置具有切割单元，切割单元的切刀能够在脱模之前就切断成品和流道凝料，无需后续人工切断分离，提高了生产效率。
This utility model discloses an injection molding device and an injection molding machine. The injection molding device includes a mold unit and a cutting unit. The mold unit includes a first mold and a second mold arranged opposite to each other. The first mold and the second mold have a first forming groove and a second forming groove formed on opposite sides, respectively. The first forming groove includes a plurality of interconnected first cavities and runners. The second forming groove includes a plurality of second cavities corresponding one-to-one with the first cavities. The cutting unit includes a plurality of cutters and a cutting drive mechanism. The cutters are arranged facing the connection between the first cavities and the runners. The cutting drive mechanism is connected to each cutter to drive the cutters to move synchronously. The injection molding machine includes the injection molding device. Compared with the prior art, the injection molding device provided by this utility model has a cutting unit. The cutters of the cutting unit can cut the finished product and the solidified material in the runner before demolding, eliminating the need for subsequent manual cutting and separation, thus improving production efficiency.
Description
Technical Field
The utility model relates to the technical field of injection molding, in particular to an injection molding device and an injection molding machine.
Background
Injection molding is a method for producing and shaping industrial products. Products are generally molded using rubber and plastic. Injection molding machines (abbreviated as "injection molding machines" or "injection molding machines") are the main molding equipment for molding thermoplastic or thermosetting materials into plastic products of various shapes using plastic molding dies.
Injection molding molds generally include a cavity and a runner, particularly a multi-cavity mold, with the respective cavities being in communication via the runner. And during injection molding, the molten plastic fills the runner and each cavity, and the finished product and the runner condensate are obtained after cooling. Then the finished product and the runner condensate are required to be cut off and separated, and a single finished product is obtained.
In the existing production, the automation degree of the cutting process is low, and the cutting process is generally carried out by adopting a manual cutting mode, so that the labor consumption is large, and the production efficiency is low.
Disclosure of utility model
The utility model aims to overcome the technical defects, provides an injection molding device and an injection molding machine, and solves the technical problem that products obtained by the existing injection molding process are connected with runner solidification materials and need to be manually sheared.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
In a first aspect, the present utility model provides an injection molding apparatus comprising:
The mold unit comprises a first mold and a second mold which are oppositely arranged, wherein a first molding groove and a second molding groove are respectively formed on opposite side surfaces of the first mold and the second mold, the first molding groove comprises a plurality of first cavities and runners which are mutually communicated, and the second molding groove comprises a plurality of second cavities which are in one-to-one correspondence with the first cavities;
The cutting unit comprises a plurality of cutters and a cutting driving mechanism, the cutters are respectively arranged towards the joint of the first cavity and the runner, and the cutting driving mechanism is connected with each cutter to drive each cutter to synchronously move.
In some embodiments, the second mold is formed with a plurality of through holes, the cutter is correspondingly slidably embedded in the through holes, the cutting edge of the cutter faces to the connection part of the first cavity and the runner, and one end of the cutter, which is far away from the cutting edge, is connected with the cutting driving mechanism.
In some embodiments, the cutting driving mechanism comprises a cutting driver, a connecting plate and a plurality of connecting rods, wherein the connecting rods are in one-to-one correspondence with the cutters, one ends of the connecting rods are fixedly connected with the cutters, the other ends of the connecting rods extend out of the through holes and are fixedly connected with the connecting plate, and the cutting driver is connected with the connecting plate.
In some embodiments, the injection molding apparatus further comprises a clamping unit coupled to the first mold to drive the first mold toward or away from the second mold.
In some embodiments, the first mold is further formed with a plurality of mounting holes, a part of the mounting holes are communicated with the first cavity, the rest of the mounting holes are communicated with the runner, the injection molding device further comprises a demolding unit, the demolding unit comprises a plurality of demolding mechanisms, the demolding mechanisms are embedded in the mounting holes in a one-to-one correspondence manner, and the demolding mechanism comprises a telescopic top block for separating a finished product from the first cavity and separating a runner gel from the runner.
In some embodiments, the first mold is further formed therein with air supply channels communicating with the respective mounting holes, and the demolding unit further includes an air supply mechanism communicating with the air supply channels, and the demolding mechanism further includes a return spring connected to the top block and the bottom surface of the mounting hole.
In some embodiments, the mounting hole comprises a first mounting hole communicated with the first cavity and a second mounting hole communicated with the runner, the demolding mechanism comprises a first demolding mechanism arranged in the first mounting hole and a second demolding mechanism arranged in the second mounting hole, the first mounting hole is a step hole, a top block of the first demolding mechanism is abutted with a step surface of the step hole, the second mounting hole is a straight hole, the second demolding mechanism further comprises a top rod, one end of the top rod is fixedly connected with the bottom surface of the second mounting hole, and the other end of the top rod is abutted with the top block of the second demolding mechanism.
In some embodiments, the injection molding apparatus further comprises a receiving mechanism disposed below the first mold and the second mold for receiving a finished product and runner solidification.
In some embodiments, the second cavity has a depth less than the first cavity.
In a second aspect, the utility model also provides an injection molding machine comprising an injection molding device.
Compared with the prior art, the injection molding device provided by the utility model is provided with the cutting unit, and the cutter of the cutting unit is arranged towards the joint of the first cavity and the runner, so that the finished product and the runner solidification can be cut off before demolding, subsequent manual cutting and separation are not needed, and the production efficiency is improved.
Drawings
FIG. 1 is a cross-sectional view of an injection molding apparatus provided in an embodiment of the present utility model;
FIG. 2 is a front view of the first mold of FIG. 1;
FIG. 3 is a front view of the second mold of FIG. 1;
fig. 4 is an enlarged view at M in fig. 1.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In order to solve the technical problem that products obtained by the existing injection molding technology are connected with runner congeals and need to be manually sheared, the utility model provides an injection molding device which is provided with a cutting unit, so that finished products and runner congeals can be cut off before demolding, subsequent manual cutting and separation are not needed, and the production efficiency is improved.
Referring to fig. 1 to 3, fig. 1 is a cross-sectional view of an injection molding apparatus according to an embodiment of the present utility model, fig. 2 is a front view of a first mold in fig. 1, and fig. 3 is a front view of a second mold in fig. 1. The injection molding device comprises a mold unit 1 and a cutting unit 2.
The mold unit 1 includes a first mold 11 and a second mold 12 arranged opposite to each other, wherein the first mold 11 and the second mold 12 are formed with a first molding groove and a second molding groove, respectively, on opposite sides. The first molding groove comprises a plurality of first cavities 111 and runners 112 which are communicated with each other, and the second molding groove comprises a plurality of second cavities 121 which are in one-to-one correspondence with the first cavities. When the first mold 11 and the second mold 12 are closed, the first cavity 111 and the second cavity 121 are opposed to each other to form a cavity for molding a finished product. The runner 112 also forms an interface on the outer surface of the first mold 11 for connecting to a molten plastic supply apparatus.
The cutting unit 2 includes a plurality of cutters 21 and a cutting driving mechanism 22, and the cutters 21 are respectively arranged toward the junction of the first cavity 111 and the runner 112. The cutting driving mechanism 22 is connected with each cutter 21 to drive each cutter 21 to synchronously move, so as to cut off the finished product and the runner gel. In some embodiments, the molten plastic may be left to solidify before cutting off the finished product and the runner gel. In another embodiment, the cutter 21 may be driven to move to cut off the finished product and the runner solidified material when the injection of the molten plastic is completed but not yet solidified.
In some embodiments, the second cavity 121 is less deep than the first cavity 111 such that after solidification of the plastic, the first mold 11 and the second mold 12 are split and the finished product and runner condensate are located within the first mold 11.
In some embodiments, the second mold 12 is formed with a plurality of through holes, and the cutter 21 is correspondingly slidably embedded in the through holes, and the cutting edge faces the connection between the first cavity 111 and the runner 112. One end of the cutter 21, which is far from the cutting edge, is connected with a cutting driving mechanism 22.
In some embodiments, the cutting driving mechanism 22 includes a cutting driver 221, a connection plate 222 and a plurality of connection rods 223, the connection rods 223 are in one-to-one correspondence with the cutters 21, one ends of the connection rods 223 are located in the through holes and fixedly connected with the cutters 21, the other ends of the connection rods 223 extend out of the through holes and are fixedly connected with the connection plate 222, and the cutting driver 221 is connected with the connection plate 222. The cutting driver 221 may adopt an air cylinder, an oil cylinder, an electric push rod, or the like, and drives each cutter 21 to synchronously move through the connecting plate 222 and the connecting rod 223.
In some embodiments, the injection molding apparatus further comprises a clamping unit 3, the clamping unit 3 being connected to the first mold 11 to drive the first mold 11 towards or away from the second mold 12. The clamping unit 3 preferably employs a hydraulic cylinder to provide the driving force, and may be directly connected to the first mold 11 or indirectly connected through a suitable transmission mechanism. In other embodiments, the clamping unit 3 may be connected to the second mold 12. However, since the second die 12 is provided with the cutting drive mechanism 22, the connection of the clamping unit 3 to the first die 11 is a more preferable solution in order to simplify the difficulty of the arrangement of the apparatus.
Referring to fig. 1 and 4, fig. 4 is an enlarged view at M in fig. 1. In some embodiments, the injection molding apparatus further comprises a demolding unit 4, the demolding unit 4 comprising a plurality of demolding mechanisms 41. The first mold 11 is also formed therein with a plurality of mounting holes, part of which communicate with the first cavity 111, and the remaining mounting holes communicate with the runner 112. The demoulding mechanisms 41 are embedded in the mounting holes in a one-to-one correspondence. The demolding mechanism 41 includes a retractable top piece 411 for separating the finished product from the first cavity 111 and for separating the runner condensate from the runner 112. It will be readily appreciated that the shape of the ejection face of the ejector 411 facing the first row of cavities 111 is to be matched to the shape of the corresponding part of the finished product, i.e. the ejection face of the ejector 411 also participates in the finished product formation when the ejector mechanism 41 is in the non-ejected state.
In some embodiments, the first mold 11 is further formed therein with air supply passages 113 communicating with the respective mounting holes, and the ejector unit 4 further includes an air supply mechanism (not shown) communicating with the air supply passages. The demoulding mechanism 41 further comprises a return spring 412, and the return spring 412 is connected with the top block 411 and the bottom surface of the mounting hole. That is, in the pneumatic ejection mode, the air supply mechanism supplies air into the air supply channel 113 to pressurize, so that the ejector 411 ejects out to push the finished product to be separated from the first cavity 111, and the runner condensate is separated from the runner 112. Then the air supply mechanism stops supplying air, and the return spring 412 pulls the top block 411 to return.
The cross section shape of the top block 411 is matched with the cross section shape of the mounting hole, so that the top block 411 can slide smoothly in the mounting hole, and a large gap is not formed between the top block 411 and the mounting hole, thereby causing obvious air leakage.
In the preferred embodiment, the ejector 411 further has a vent slot communicating the side of the ejector 411 with the opposite side of the ejector, when the ejector 411 ejects a certain distance, the vent slot communicates with the outside after ejecting the finished product or the runner gel, and the internal pressure is relieved, so that the ejector 411 does not continue to move outwards and slides out of the mounting hole completely, so as to facilitate the resetting of the return spring 412.
In some embodiments, the mounting holes include a first mounting hole that communicates with the first cavity 111 and a second mounting hole that communicates with the runner 112, and the demolding mechanism 41 includes a first demolding mechanism 41A disposed within the first mounting hole and a second demolding mechanism 41B disposed within the second mounting hole. The first mounting hole is a stepped hole, and the top piece 411 of the first demoulding mechanism 41A abuts against a stepped surface of the stepped hole. The second mounting hole is a straight hole, and the second demoulding mechanism 41B further comprises a push rod 413, one end of the push rod 413 is fixedly connected with the bottom surface of the second mounting hole, and the other end of the push rod is abutted to the top block 411 of the second demoulding mechanism 41B. The stepped hole and the ejector pin 413 are used to restrict the ejector block 411, preventing the ejector block 411 from being moved inward by the pressure of the molten plastic. The size of the finished product is larger, and a step hole is arranged in a wider space. The flow passage is small in size, limited in size, and the ejector pins 413 can be used to achieve the same technical effect. It will be readily appreciated that in other embodiments, it is also possible to take the form of both the first mounting hole and the first demoulding mechanism 41A, or both the second mounting hole and the second demoulding mechanism 41B.
In some embodiments, the injection molding apparatus further comprises a receiving mechanism 5, the receiving mechanism 5 being arranged below the first mold 11 and the second mold 12 for receiving the finished product and the runner solidification. Because the shape and the size of the finished product and the runner condensate are different, the required finished product can be obtained only through simple separation.
In other embodiments, the utility model further provides an injection molding machine comprising the injection molding device. Also included are the housing, the slide rail carrying the first mould 11, etc.
For a better understanding of the present utility model, the following description will describe the technical scheme of the present utility model in detail with reference to fig. 1 to 4, in which the mold clamping unit 3 pushes the first mold 11 to clamp the second mold 12, the molten plastic feeding device injects the molten plastic into the runner 112, and the cutting driving mechanism 22 drives the cutter 21 to cut off the finished product and the runner solidified material after the plastic solidifies. The die clamping unit 3 is pulled lower than the die 11 and separated from the second die 12, the demoulding mechanism 41 ejects out the finished product and the runner condensate, and the finished product falls into the receiving mechanism 5 and is separated to obtain the required finished product.
The above-described embodiments of the present utility model do not limit the scope of the present utility model. Any other corresponding changes and modifications made in accordance with the technical idea of the present utility model shall be included in the scope of the claims of the present utility model.
Claims (10)
1. An injection molding apparatus, comprising:
The mold unit comprises a first mold and a second mold which are oppositely arranged, wherein a first molding groove and a second molding groove are respectively formed on opposite side surfaces of the first mold and the second mold, the first molding groove comprises a plurality of first cavities and runners which are mutually communicated, and the second molding groove comprises a plurality of second cavities which are in one-to-one correspondence with the first cavities;
The cutting unit comprises a plurality of cutters and a cutting driving mechanism, the cutters are respectively arranged towards the joint of the first cavity and the runner, and the cutting driving mechanism is connected with each cutter to drive each cutter to synchronously move.
2. The injection molding apparatus of claim 1, wherein the second mold has a plurality of through holes, the cutter is correspondingly slidably inserted into the through holes, the cutting edge of the cutter faces the junction between the first cavity and the runner, and one end of the cutter away from the cutting edge is connected with the cutting driving mechanism.
3. The injection molding apparatus of claim 2, wherein the cutting driving mechanism comprises a cutting driver, a connection plate and a plurality of connection rods, the connection rods are in one-to-one correspondence with the cutters, one ends of the connection rods are fixedly connected with the cutters, the other ends of the connection rods extend out of the through holes and are fixedly connected with the connection plate, and the cutting driver is connected with the connection plate.
4. The injection molding apparatus of claim 1, further comprising a clamping unit coupled to the first mold to drive the first mold toward or away from the second mold.
5. The injection molding apparatus of claim 1, wherein the first mold further has a plurality of mounting holes formed therein, a portion of the mounting holes being in communication with the first cavity and the remaining mounting holes being in communication with the runner, the injection molding apparatus further comprising a stripper unit including a plurality of stripper mechanisms embedded in the mounting holes in one-to-one correspondence, the stripper mechanism including a retractable top block for separating a finished product from the first cavity and a runner gel from the runner.
6. The injection molding apparatus of claim 5, wherein the first mold further has an air supply channel formed therein that communicates with each of the mounting holes, the demolding unit further comprising an air supply mechanism in communication with the air supply channel, the demolding mechanism further comprising a return spring that connects the top block and the bottom surface of the mounting hole.
7. The injection molding device of claim 6, wherein the mounting hole comprises a first mounting hole communicated with the first cavity and a second mounting hole communicated with the runner, the demolding mechanism comprises a first demolding mechanism arranged in the first mounting hole and a second demolding mechanism arranged in the second mounting hole, the first mounting hole is a step hole, a top block of the first demolding mechanism is abutted with a step surface of the step hole, the second mounting hole is a straight hole, the second demolding mechanism further comprises a top rod, one end of the top rod is fixedly connected with the bottom surface of the second mounting hole, and the other end of the top rod is abutted with a top block of the second demolding mechanism.
8. The injection molding apparatus of claim 1, further comprising a receiving mechanism disposed below the first mold and the second mold for receiving a finished product and runner gel.
9. The injection molding apparatus of claim 1, wherein the second cavity has a depth less than the first cavity.
10. An injection molding machine comprising an injection molding apparatus as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520648889.8U CN224103432U (en) | 2025-04-08 | 2025-04-08 | Injection molding device and injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520648889.8U CN224103432U (en) | 2025-04-08 | 2025-04-08 | Injection molding device and injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN224103432U true CN224103432U (en) | 2026-04-10 |
Family
ID=99351007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520648889.8U Active CN224103432U (en) | 2025-04-08 | 2025-04-08 | Injection molding device and injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN224103432U (en) |
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2025
- 2025-04-08 CN CN202520648889.8U patent/CN224103432U/en active Active
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