CN219427350U - Overlapped molding needle valve butt joint sizing material backflow structure - Google Patents
Overlapped molding needle valve butt joint sizing material backflow structure Download PDFInfo
- Publication number
- CN219427350U CN219427350U CN202320708047.8U CN202320708047U CN219427350U CN 219427350 U CN219427350 U CN 219427350U CN 202320708047 U CN202320708047 U CN 202320708047U CN 219427350 U CN219427350 U CN 219427350U
- Authority
- CN
- China
- Prior art keywords
- needle valve
- needle
- valve
- point
- hot nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a stacked molding needle valve butt joint sizing material backflow structure which comprises a single-point needle valve, a single-point needle valve hot nozzle, an upper needle valve, a lower needle valve, a hot nozzle runner, a needle valve hot nozzle and a lower needle valve driving device, wherein the single-point needle valve hot nozzle is communicated with the single-point needle valve, the insertion end of the upper needle valve penetrates through the central passage of the single-point needle valve hot nozzle, the insertion end of the lower needle valve penetrates through the central passage of the needle valve hot nozzle, the tail end of the lower needle valve is in transmission connection with the lower needle valve driving device, the hot nozzle runner penetrating through the needle valve hot nozzle is arranged in the needle valve hot nozzle, a plurality of return grooves are axially formed in the outer circumferential surface of the lower needle valve, and each return groove extends to the end face of the head end of the lower needle valve and is communicated with the hot nozzle runner. When the two valves are in contact with each other, the glue on the end face of the upper valve needle and the end face of the lower valve needle flows back to the hot nozzle runner through the return groove of the lower valve needle when the valve needle seals the valve needle, so that the purpose of wire drawing and casting are achieved.
Description
Technical Field
The utility model relates to the technical field of injection molding equipment, in particular to a rubber material backflow structure for butt joint of a stacked molding needle valve.
Background
Along with the continuous development of industrial manufacture, the injection molding technology has become an important production method in industrial production, has the advantages of high production speed, high efficiency, accurate size and the like, and is widely applied to the molding production of plastic parts. In a hot runner system of an injection mold, when a mode of directly feeding glue on the surface of a product is adopted, in order to avoid forming a material handle or wire drawing at a glue feeding port on the surface of the product, a valve needle type hot runner system is generally selected, and the opening and closing of the glue feeding port are controlled through the movement of the valve needle. However, when the needle is sealed at the contact position of the two conventional stacked molding valves, the glue at the front end of the needle is returned to the runner without space, so that the wire drawing and casting are performed.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides a stacked molding needle valve butt joint glue backflow structure which can realize that glue is not drawn and cast when a needle is sealed at a position where two stacked molding valves are in butt joint.
In order to achieve the above purpose, the utility model provides a stacked molding needle butt joint sizing material backflow structure, which comprises a single-point needle valve, a single-point needle valve hot nozzle, an upper needle, a lower needle, a hot nozzle runner, a needle valve hot nozzle and a lower needle driving device, wherein the single-point needle valve hot nozzle is communicated with the single-point needle valve, the insertion end of the upper needle passes through the central passage of the single-point needle valve hot nozzle, the insertion end of the lower needle passes through the central passage of the needle valve hot nozzle, the tail end of the lower needle is in transmission connection with the lower needle driving device, a hot nozzle runner penetrating through the needle valve hot nozzle is arranged in the lower needle runner, a plurality of return grooves are axially formed in the outer circumferential surface of the lower needle, each return groove extends to the end face of the head end of the lower needle, and each return groove is communicated with the hot nozzle runner.
Preferably, the channel diameter of each return channel gradually decreases towards the outlet, and the return channels have a conical structure.
Preferably, the lower needle driving means is provided as a cylinder.
Preferably, the tail end of the single-point needle valve is provided with a bidirectional runner hole.
Preferably, a heater is fixedly arranged on the outer side of the needle valve hot nozzle.
Preferably, the single-point needle valve further comprises a fixing screw, a fixing screw mounting hole for inserting the fixing screw is formed in one side end seat of the single-point needle valve, and the end seat of the single-point needle valve is fixed on the mounting surface through the fixing screw inserted into the fixing screw mounting hole.
Preferably, the needle valve further comprises a panel, and the single-point needle valve is mounted on the panel.
Preferably, the single-point needle valve hot nozzle further comprises an A plate, and the single-point needle valve hot nozzle is mounted on the A plate.
Preferably, the hot nozzle of the needle valve and the lower valve needle driving device are both mounted on the B plate.
Preferably, the heat channel flow plate is positioned between two adjacent B plates.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model has simple structure and reasonable design, when the two valves are overlapped and molded for touching, the outer circumferential surface of the lower valve needle is axially provided with a plurality of return grooves, the plurality of return grooves are designed to extend to the end face of the head end of the lower valve needle, the end face of the lower valve needle is driven by the lower valve needle driving device to move to the end face of the upper valve needle, and the glue on the end faces of the two valve needles can flow back to the hot nozzle runner through the return grooves of the lower valve needle, so that the wire drawing casting is avoided, and the glue sealing effect is more stable and smooth.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a stacked molded needle valve butt joint glue material backflow structure provided by an embodiment of the utility model;
FIG. 2 is an enlarged schematic view of a stacked molded needle valve butt joint glue backflow structure provided by an embodiment of the utility model;
FIG. 3 is a schematic diagram of a reflux tank of a stacked molding needle valve butt joint glue material reflux structure according to an embodiment of the present utility model;
fig. 4 is an installation schematic diagram of a stacked molding needle valve butt joint glue material backflow structure provided by an embodiment of the utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, an embodiment of the utility model provides a stacked molding needle butt joint glue backflow structure, which includes a single-point needle 1, a single-point needle hot nozzle 2, an upper needle 3, a lower needle 4, a hot nozzle runner 5, a needle hot nozzle 6, a lower needle driving device 7, and the like, and each component of the embodiment is described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 3, the single-point needle valve hot nozzle 2 may be communicated with the single-point needle valve 1, the insertion end of the upper needle 3 passes through the central passage of the single-point needle valve hot nozzle 2, the insertion end of the lower needle 4 passes through the central passage of the needle valve hot nozzle 6, the tail end of the lower needle 4 is in transmission connection with the lower needle driving device 7, the hot nozzle runner 5 penetrating the needle valve hot nozzle 6 is arranged in the needle valve hot nozzle 6, the lower needle 4 is arranged in the hot nozzle runner 5, a plurality of return grooves 41 are axially formed in the outer circumferential surface of the lower needle 4, each return groove 41 extends to the end face of the head end of the lower needle 4, and each return groove 41 is communicated with the hot nozzle runner 5.
Wherein, the single-point needle valve 1 is controlled by mechanical pneumatic or hydraulic pressure, and the single-point needle valve type hot runner controls the opening and closing of a single gate through only one valve needle for injection molding.
In this embodiment, the channel diameter of each of the return channels 41 may be gradually reduced toward the outlet, and may have a tapered structure.
Wherein the lower needle drive 7 may preferably be provided as a cylinder. The cylinder drives the lower valve needle 4 to move back and forth until the end face of the lower valve needle 4 contacts with the end face of the upper valve needle 3, so that the needle seal is realized.
Preferably, the tail end of the single-point needle valve 1 can be provided with a bidirectional runner hole 11, so that the stability and smoothness of the rubber inside the single-point needle valve can be ensured.
Preferably, the heater 61 may be fixedly provided on the outer side of the needle valve hot nozzle 6.
The single-point needle valve 1 may further include a set screw 12, a set screw mounting hole into which the set screw 12 is inserted is provided on one side end seat of the single-point needle valve 1, and a user may fix the end seat of the single-point needle valve 1 on the mounting surface through the set screw 12 inserted into the set screw mounting hole, thereby fixing the single-point needle valve 1 on the die plate of the die. Of course, in other embodiments, the user may use other mounting methods to mount the single-point needle valve on the mold plate or other mounting surfaces of the mold according to actual situations, which is not limited to this embodiment.
In the specific installation process, as shown in fig. 4, the device further comprises a panel 101, an a-plate 102, B-plates 103 and a hot runner plate 104, wherein the single-point needle valve 1 is installed on the panel 10, the single-point needle valve 2 is installed on the a-plate 102, the needle valve 6 and the lower needle valve driving device 7 are both installed on the B-plates 103, and the hot runner plate 104 is positioned between two adjacent B-plates 103. In addition, it should be noted that the installation mode is only for showing one of the usage modes of the present embodiment, and the present embodiment is not represented to be limited to such a usage mode.
When the single-point needle valve 1 is used, the single-point needle valve 1 can be fixed on a template of a die through the fixing screw 12, and the hot nozzle runner 7 is communicated with a sizing material runner in the single-point needle valve hot nozzle 2. During operation, the sizing material flows into the hot nozzle runner 7 from the sizing material runner of the plate A, the lower valve needle 4 is not contacted with the upper valve needle 3 at the moment, the end faces of the lower valve needle 4 move to be contacted with the end faces of the upper valve needle 3 through the lower valve needle driving device 7, and the sizing material on the end faces of the two valve needles flows back into the hot nozzle runner 7 through the feed back groove 41 of the lower valve needle 4, so that no wire drawing casting is achieved.
In summary, when the two overlapped and molded valves are used for sealing the valve needle, the outer circumferential surface of the lower valve needle is axially provided with the plurality of return grooves, the plurality of return grooves are designed to extend to the end face of the head end of the lower valve needle, the end face of the lower valve needle is driven by the lower valve needle driving device to move to the end face of the upper valve needle, and the glue on the end faces of the two valve needles can flow back to the hot nozzle runner through the return grooves of the lower valve needle, so that wire drawing casting is avoided, and the glue sealing effect is more stable and smooth.
The above examples are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present utility model should be made in the equivalent manner, and the embodiments are included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a fold mould needle valve butt joint sizing material reflux structure which characterized in that: including single-point needle valve (1), single-point needle valve hot mouth (2), go up needle (3), down needle (4), hot mouth runner (5), needle valve hot mouth (6), lower needle drive arrangement (7), single-point needle valve hot mouth (2) are linked together with single-point needle valve (1), the central passage of single-point needle valve hot mouth (2) is passed to the inserted end of going up needle (3), the central passage of needle valve hot mouth (6) is passed to the inserted end of lower needle (4), the afterbody end and the transmission of lower needle drive arrangement (7) of lower needle (4) are connected, the inside of needle valve hot mouth (6) is provided with hot mouth runner (5) that run through needle valve hot mouth (6), lower needle (4) set up in hot mouth runner (5), a plurality of feed back groove (41) have been seted up axially on the outer circumference surface of lower needle (4), and every feed back groove (41) all extend to the terminal surface of the head end of lower needle (4), and every feed back groove (41) all are linked together with hot mouth runner (5).
2. The overlapped molding needle valve butt joint sizing material backflow structure according to claim 1, wherein: the groove diameter of each return groove (41) gradually decreases towards the outlet direction, and the return groove has a conical structure.
3. The overlapped molding needle valve butt joint sizing material backflow structure according to claim 1, wherein: the lower valve needle driving device (7) is arranged as a cylinder.
4. The overlapped molding needle valve butt joint sizing material backflow structure according to claim 1, wherein: the tail end of the single-point needle valve (1) is provided with a bidirectional runner hole (11).
5. The overlapped molding needle valve butt joint sizing material backflow structure according to claim 1, wherein: a heater (61) is fixedly arranged on the outer side of the needle valve hot nozzle (6).
6. The overlapped molding needle valve butt joint sizing material backflow structure according to claim 1, wherein: the single-point needle valve is characterized by further comprising a fixing screw (12), wherein a fixing screw mounting hole for inserting the fixing screw (12) is formed in one side end seat of the single-point needle valve (1), and the end seat of the single-point needle valve (1) is fixed on a mounting surface through the fixing screw (12) inserted into the fixing screw mounting hole.
7. The overlapped molding needle valve butt joint sizing material backflow structure according to claim 1, wherein: the needle valve further comprises a panel (101), and the single-point needle valve (1) is mounted on the panel (101).
8. The overlapped molding needle valve butt joint sizing material backflow structure according to claim 1, wherein: the single-point needle valve hot nozzle also comprises an A plate (102), and the single-point needle valve hot nozzle (2) is mounted on the A plate (102).
9. The overlapped molding needle valve butt joint sizing material backflow structure according to claim 1, wherein: the hot nozzle of the needle valve (6) and the lower needle valve driving device (7) are both installed on the B plate (103).
10. The stack molding needle valve butt joint glue backflow structure according to claim 9, wherein: the heat channel flow plate (104) is arranged between two adjacent B plates (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320708047.8U CN219427350U (en) | 2023-04-03 | 2023-04-03 | Overlapped molding needle valve butt joint sizing material backflow structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320708047.8U CN219427350U (en) | 2023-04-03 | 2023-04-03 | Overlapped molding needle valve butt joint sizing material backflow structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219427350U true CN219427350U (en) | 2023-07-28 |
Family
ID=87345433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320708047.8U Active CN219427350U (en) | 2023-04-03 | 2023-04-03 | Overlapped molding needle valve butt joint sizing material backflow structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219427350U (en) |
-
2023
- 2023-04-03 CN CN202320708047.8U patent/CN219427350U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105965790A (en) | Integral type hot runner free of runner dead corner | |
| CN219427350U (en) | Overlapped molding needle valve butt joint sizing material backflow structure | |
| CN217293331U (en) | Double-layer cylinder structure for needle valve type hot runner and injection mold | |
| CN109159384B (en) | No weld mark injection structure of accurate car grid mould | |
| CN215320165U (en) | Low-pressure glue injection machine using LD-PE material | |
| CN206999522U (en) | A kind of more nozzle core side glue mouth TOP-TIPs | |
| CN211941881U (en) | Novel side needle valve formula hot runner structure | |
| CN101607430A (en) | Cold flow-passage floating nozzle structure of rubber injection machine | |
| CN207942632U (en) | A kind of hot runner structure being molded two cavities | |
| CN219381382U (en) | Leak-proof injection head of injection molding machine | |
| CN218366256U (en) | Special-shaped gate inlet structure of needle valve type hot runner system | |
| CN201437272U (en) | Cold runner floating nozzle structure for rubber injection machine | |
| CN112092308A (en) | Injection molding pipe fitting mold | |
| CN219153602U (en) | Hot nozzle assembly and hot runner mold with same | |
| CN218777036U (en) | Single-point needle valve hot runner system | |
| CN219114679U (en) | Hot runner system and main inlet nozzle structure thereof | |
| CN210026127U (en) | Thin-wall micro-liquid silica gel cold runner mold | |
| CN218948284U (en) | Single-point needle valve type liquid silica gel cold nozzle | |
| CN118046538B (en) | Hot runner system and injection mold | |
| CN208629798U (en) | The pneumatic nozzle of registration | |
| CN221136740U (en) | Hot nozzle and injection molding system | |
| CN217704428U (en) | Needle valve hot nozzle made of soft rubber materials | |
| CN212241952U (en) | Standardized modular structure of injection mold hot runner system | |
| CN215550568U (en) | Cold glue channel system and cold glue channel mould | |
| CN211221847U (en) | Cold flow nozzle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |