Glue feeding structure with matched needle valve and pitched roof
The injection structure, which combines a needle valve with an angled ejector, solves the problems of spray marks and mold compression in injection-molded products with a full-surface appearance caused by traditional transfer injection methods, and achieves efficient and unaffected injection molding production.
Patent Information
- Application Number
- CN202423118284.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Traditional injection molding methods often result in spray marks in the production of injection molded products with a full-surface appearance, affecting the product's appearance and causing compression molding, making it difficult to achieve efficient production.
The injection structure uses a needle valve and a slanted ejector. By using inverted injection and a slanted ejector that moves at an angle, the needle valve injection point avoids affecting the appearance of the surface. The ejector cylinder drives the ejector plate and the slanted ejector rod to perform the demolding operation.
It enables the production of injection-molded products with a complete appearance, avoiding spray marks and compression molding, and improving production efficiency and optimizing the injection molding process.
Smart Images
Figure CN223763674U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of injection mold, especially to a glue feeding structure with needle valve and inclined top cooperation. BACKGROUND
[0002] With the development of plastic mold technology, customers' requirements for the appearance of plastic products are also higher and higher. If the appearance surface of the product is not allowed to be provided with a glue feeding port, only the traditional switching glue feeding mode can be used, but the traditional switching glue feeding mode also has disadvantages, for example, the flow channel of the switching glue feeding mode is in the same plane as the plastic product, and it is easy to produce a spray mark on the surface of the plastic product during production, which brings more trouble to the later processing.
[0003] Therefore, how to injection mold the injection molded product on the whole appearance surface to avoid affecting the appearance surface is a technical problem to be solved. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at providing a technical scheme for solving the above problems.
[0005] The utility model provides a glue feeding structure with needle valve and inclined top cooperation, including pouring system, forming system and ejection system, the forming system is equipped with mould core subassembly, the mould core subassembly is equipped with front mould core and rear mould core, and is surrounded each other, forms injection molding cavity, the pouring system is equipped with needle valve flow channel and needle valve gate, the needle valve flow channel passes through the forming system, makes the needle valve gate injects molten plastic into the injection molding cavity, the ejection system is equipped with gate inclined top, the gate inclined top and needle valve gate cooperate each other, and the injection molding cavity is injected with molten plastic.
[0006] As a further scheme of the utility model: the one end of the gate inclined top close to the injection molding cavity is equipped with gate groove, one side of the gate groove is opened in the gate inclined top, and the other side is abutted on the front mould core, and one end of the gate groove and the needle valve gate form a communication state, and the other end and the injection molding cavity form a communication state.
[0007] As a further scheme of the utility model: the ejection system is equipped with ejection cylinder and ejection plate, the one end of the gate inclined top away from the injection molding cavity is equipped with inclined top rod, the inclined top rod and the ejection plate form transmission connection, the forming system is also equipped with front mould plate, the position corresponding to the ejection plate of the front mould plate is equipped with ejection groove, the ejection plate is arranged in the ejection groove and can move along the ejection groove, the ejection cylinder is fixedly connected to the front mould plate, and the piston end of the ejection cylinder is transmission connected to the ejection plate.
[0008] As a further scheme of the utility model: the one end of the gate inclined top away from the injection molding cavity is equipped with two groups of inclined top rods, and the two groups of inclined top rods are respectively transmission connected to the ejection plate.
[0009] As a further scheme of the utility model: the ejection system is further equipped with an inclined ejection seat, and the inclined ejection rod and the inclined ejection seat are matched with each other to form a sliding connection.
[0010] As a further scheme of the utility model: the ejection system is further equipped with a guide sliding block, one end of the inclined ejection seat is fixedly connected to the ejection plate, the other end of the inclined ejection seat is equipped with a sliding groove, one end of the guide sliding block is equipped with a sliding rail, the sliding rail is embedded in the sliding groove, and the sliding rail and the sliding groove are matched with each other to form a sliding connection.
[0011] As a further scheme of the utility model: one end of the guide sliding block, which is away from the inclined ejection seat, is equipped with a rotating groove, one end of the inclined ejection rod, which is close to the inclined ejection seat, is equipped with a rotating sliding block, the rotating sliding block can be embedded in the rotating groove, and the rotating sliding block and the rotating groove are matched with each other to form a rotating connection.
[0012] As a further scheme of the utility model: the front mold core is equipped with a guide through hole corresponding to the position of the inclined ejection of the needle valve, and the inclined ejection rod of the needle valve is respectively arranged in the guide through hole and can be obliquely moved along the guide through hole.
[0013] Compared with the prior art, the utility model has the beneficial effects that:
[0014] 1. The needle valve flow channel is matched with the gate inclined ejection to pour the glue in the reverse direction, so that the hot nozzle flow casting of the needle valve gate can be avoided, and the problem of mold pressing can be avoided.
[0015] 2. The ejection cylinder and the ejection plate can be arranged to drive the gate inclined ejection, so that the gate inclined ejection can be obliquely moved in cooperation with the front mold core, thereby the demolding and ejection operations are carried out, and the injection molding process is optimized.
[0016] Therefore, through the above improvement, the utility model can provide a glue pouring structure matched with the needle valve and the inclined ejection, when the injection molding product is a full appearance, the appearance can also be avoided to be affected, a corresponding injection molding mold is formed, normal injection molding production of the injection molding product is carried out, the hot nozzle flow casting can be avoided in production, the mold pressing phenomenon can be avoided, and the production efficiency is improved.
[0017] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0019] Figure 1 is a structural schematic view of the pouring system and the forming system of the present application;
[0020] Figure 2 is a sectional schematic view of the front mold plate and the ejection system of the present application;
[0021] Figure 3 is a structural schematic view of the ejection groove of the present application;
[0022] Figure 4 is a structural schematic view of the front mold core and the guide through hole of the present application;
[0023] Figure 5 is a structural schematic view of the needle valve flow channel and the gate inclined ejector of the present application;
[0024] Figure 6 is a schematic view of the separation state of the inclined ejector seat and the guide sliding block of the present application.
[0025] The reference signs and names in the drawings are as follows:
[0026] 10 pouring system; 11 needle valve flow channel; 12 needle valve gate; 20 forming system; 21 front mold plate; 22 ejection groove; 23 front mold core; 24 guide through hole; 30 ejection system; 31 gate inclined ejector; 32 gate groove; 33 inclined ejector rod; 34 rotating sliding block; 41 ejection cylinder; 42 ejection plate; 43 inclined ejector seat; 44 sliding groove; 45 guide sliding block; 46 sliding rail; 47 rotating groove; 51 front mold fixed plate; 52 water gap plate; 53 guide system; 54 insert system. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.
[0028] Please refer to Figures 1 to 6The utility model discloses an injection glue structure of needle valve and inclined top cooperation, including pouring system 10, forming system 20 and ejection system 30, the forming system 20 is equipped with mould core subassembly, the mould core subassembly is equipped with front mould core 23 and rear mould core, and each other is surrounded, forms injection mould cavity, the pouring system 10 is equipped with needle valve runner 11 and needle valve sprue 12, the needle valve runner 11 passes through forming system 20, makes needle valve sprue 12 melt plastic injection into injection mould cavity.
[0029] Specifically, in order to carry out injection molding production operation to the full appearance surface injection molding product, the appearance surface cannot have the sprue, therefore can carry out the injection of the injection cavity, and the needle valve runner 11 is inserted into the mould core subassembly inside corresponding sprue and melt plastic injection, so as to avoid the problem of hot nozzle flow.
[0030] Secondly, in order to cooperate needle valve runner 11, corresponding sprue inclined top 31 can also be provided, the cooperation between sprue groove 32 of sprue inclined top 31 and front mould core 23 forms the gap for the injection of needle valve sprue 12, so as to complete the injection of hot plastic of injection mould cavity.
[0031] As Figure 2 , Figure 5 and Figure 6 , preferably, the end of the sprue inclined top 31 close to the injection mould cavity is provided with a sprue groove 32, one side of the sprue groove 32 is opened in the sprue inclined top 31, and the other side abuts against the front mould core 23; and one end of the sprue groove 32 is in communication with the needle valve sprue 12, and the other end is in communication with the injection mould cavity.
[0032] Specifically, the sprue groove 32 can be opened on one side of the sprue inclined top 31, so that it can form a certain pouring space between the front mould core 23 on the other side, and the hot melt plastic of the needle valve sprue 12 can be injected into the injection mould cavity. And the sprue inclined top 31 can be used to strip the injection waste, improving the injection efficiency.
[0033] As Figures 2 to 5 , preferably, the ejection system 30 is provided with an ejection cylinder 41 and an ejection plate 42, one end of the sprue inclined top 31 away from the injection mould cavity is provided with an inclined top rod 33, the inclined top rod 33 is in transmission connection with the ejection plate 42, the forming system 20 is also provided with a front mould plate 21, the front mould plate 21 is provided with an ejection groove 22 corresponding to the position of the ejection plate 42, the ejection plate 42 is arranged in the ejection groove 22 and can move along the ejection groove 22, the ejection cylinder 41 is fixedly connected to the front mould plate 21, and the piston end of the ejection cylinder 41 is in transmission connection with the ejection plate 42.
[0034] Specifically, the ejector cylinder 41 is fixed to the front mold plate 21, and the piston end of the ejector cylinder 41 can drive the ejector plate 42 to move, so that all the inclined ejector rods 33 connected to the ejector plate 42 are synchronously driven to move a certain distance, thereby demolding and ejecting the injection-molded product in the injection-molded cavity.
[0035] As shown in Figure 5 and Figure 6 , preferably, the gate inclined ejector 31 is provided with two groups of inclined ejector rods 33 at the end away from the injection-molded cavity, and the two groups of inclined ejector rods 33 are respectively drivingly connected to the ejector plate 42. The ejector system 30 is also provided with an inclined ejector seat 43, and the inclined ejector rod 33 and the inclined ejector seat 43 are matched with each other to form a sliding connection.
[0036] Specifically, similarly, the ejector plate 42 can also be provided with the same two groups of inclined ejector seats 43, so that the two groups of inclined ejector rods 33 can be respectively drivingly connected to the two groups of inclined ejector seats 43. Moreover, the corresponding guide sliding block 45 can also be provided with two groups, so that the two groups of inclined ejector rods 33 and the two groups of inclined ejector seats 43 can be respectively drivingly connected to the two groups of guide sliding blocks 45.
[0037] As shown in Figures 4 to 6 , preferably, the ejector system 30 is also provided with a guide sliding block 45, one end of the inclined ejector seat 43 is fixed to the ejector plate 42, and the other end is provided with a sliding groove 44. One end of the guide sliding block 45 is provided with a sliding rail 46, the sliding rail 46 is embedded in the sliding groove 44, and the sliding rail 46 and the sliding groove 44 are matched with each other to form a sliding connection. The end of the guide sliding block 45 away from the inclined ejector seat 43 is provided with a rotating recess 47, and the end of the inclined ejector rod 33 close to the inclined ejector seat 43 is provided with a rotating sliding block 34. The rotating sliding block 34 can be embedded in the rotating recess 47, and the rotating sliding block 34 and the rotating recess 47 are matched with each other to form a rotating connection. The front mold core 23 is provided with a guide through hole 24 corresponding to the position of the needle valve inclined ejector, and the inclined ejector rod 33 of the needle valve inclined ejector is respectively provided in the guide through hole 24 and can move obliquely along the guide through hole 24.
[0038] Specifically, since the inclined ejector rod 33 can rotate at a certain angle relative to the inclined ejector seat 43 when moving obliquely, the guide sliding block 45 can be provided to convert the driving connection between the inclined ejector seat 43 and the inclined ejector rod 33. The guide sliding block 45 and the inclined ejector seat 43 mainly produce a certain sliding, so the corresponding sliding groove 44 and sliding rail 46 can be provided to form a sliding connection.
[0039] Secondly, the inclined ejector rod 33 and the guide sliding block 45 mainly produce a certain angle of rotation, so the corresponding rotating recess 47 and rotating sliding block 34 can be provided, and the rotating sliding block 34 can be embedded in the rotating recess 47, and the rotating sliding block 34 can rotate at a certain angle to form a corresponding rotating connection.
[0040] In addition, it can be understood that the forming system 20 can also be provided with a front mold fixed plate 51, a nozzle plate 52, a rear mold plate (not shown in the figure), a rear mold fixed plate (not shown in the figure) and other necessary injection mold parts, and the entire injection mold can also include a cooling system (not shown in the figure), a guide system 53, a mold locking system (not shown in the figure) and some indispensable parts in the prior art, thereby forming a complete injection mold together, since they are prior art, no longer described here. For example, a insert system 54 in the prior art can also be provided to perform injection molding operation on other parts of the injection molded product. Or a side core pulling system (not shown in the figure) is provided to perform injection molding operation on the side undercut of the injection molded product.
[0041] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.
Claims
1. A glue feeding structure with a needle valve cooperating with a bevel, characterized in that, The injection molding machine comprises a pouring system (10), a molding system (20) and an ejection system (30), the molding system (20) is provided with a mold core assembly, the mold core assembly is provided with a front mold core (23) and a rear mold core and encloses each other to form an injection molding cavity, the pouring system (10) is provided with a needle valve runner (11) and a needle valve gate (12), the needle valve runner (11) penetrates through the molding system (20) so that the needle valve gate (12) injects molten plastic into the injection molding cavity; the ejection system (30) is provided with a gate inclined ejector pin (31), the gate inclined ejector pin (31) cooperates with the needle valve gate (12) to inject molten plastic into the injection molding cavity.
2. The glue feeding structure of claim 1, wherein, The gate inclined ejector pin (31) is provided with a gate groove (32) at one end close to the injection molding cavity, one side of the gate groove (32) is provided on the gate inclined ejector pin (31), the other side of the gate groove (32) abuts against the front mold core (23), one end of the gate groove (32) is in communication with the needle valve gate (12), and the other end of the gate groove (32) is in communication with the injection molding cavity.
3. The glue feeding structure of claim 1, wherein, The ejection system (30) is provided with an ejection cylinder (41) and an ejection plate (42), one end of the gate inclined ejector pin (31) away from the injection molding cavity is provided with an inclined ejector pin rod (33), the inclined ejector pin rod (33) is in transmission connection with the ejection plate (42), the molding system (20) is further provided with a front mold plate (21), the front mold plate (21) is provided with an ejection groove (22) at a position corresponding to the ejection plate (42), the ejection plate (42) penetrates through the ejection groove (22) and can move along the ejection groove (22), the ejection cylinder (41) is fixedly connected to the front mold plate (21), and a piston end of the ejection cylinder (41) is in transmission connection with the ejection plate (42).
4. The glue feeding structure of claim 3, wherein, The gate inclined ejector pin (31) is provided with two groups of inclined ejector pin rods (33) at one end away from the injection molding cavity, the two groups of inclined ejector pin rods (33) are respectively in transmission connection with the ejection plate (42).
5. The pin valve and bevel head cooperating resin inlet structure according to claim 3, characterized in that, The ejection system (30) is further provided with an inclined ejector pin seat (43), the inclined ejector pin rod (33) cooperates with the inclined ejector pin seat (43) to form a sliding connection.
6. The glue feeding structure of claim 5, wherein, The ejection system (30) is further provided with a guide sliding block (45), one end of the inclined ejector pin seat (43) is fixedly connected to the ejection plate (42), the other end of the inclined ejector pin seat (43) is provided with a sliding groove (44), one end of the guide sliding block (45) is provided with a sliding rail (46), the sliding rail (46) is embedded in the sliding groove (44) and cooperates with each other to form a sliding connection.
7. The pin valve and bevel head cooperating resin inlet structure according to claim 6, characterized in that, One end of the guide sliding block (45) away from the inclined ejector pin seat (43) is provided with a rotating groove (47), one end of the inclined ejector pin rod (33) close to the inclined ejector pin seat (43) is provided with a rotating sliding block (34), the rotating sliding block (34) can be embedded in the rotating groove (47) and cooperates with each other to form a rotating connection.
8. The pin valve and bevel head cooperating resin inlet structure according to claim 3, characterized in that, The front mold core (23) is provided with a guide through hole (24) at a position corresponding to the inclined ejector pin rod (33), the inclined ejector pin rod (33) penetrates through the guide through hole (24) and can move obliquely along the guide through hole (24).