Die with front die ejection function

Abstract

The utility model relates to the technical field of injection molds, and discloses a mold with a front mold ejection function, the mold comprises a first injection mold and a second injection mold, the first injection mold and the second injection mold are both provided with lower molds, the positions of the two lower molds are mutually changed in the injection molding process, and the two lower molds are used for two times of injection molding; the first injection mold further comprises an upper mold, a driving mechanism used for ejecting out the product is arranged outside the upper mold, and the product is pushed out of the interior of the upper mold through the driving mechanism arranged outside the upper mold and left in the lower mold. And when the positions of the two lower molds arranged on the first injection mold and the second injection mold are exchanged, the products can be driven to move at the same time, and then the secondary injection molding process is completed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of injection molds and relates to a mold with front mold ejection. BACKGROUND

[0002] The structure of the double-color mold is that most of the glue positions of the product are formed in the rear mold, and the production of the product is completed through rear mold ejection. For a product whose glue positions are mostly formed in the front mold and the rear mold is an appearance surface that cannot be provided with a top-out type double-color product, a traditional double-color mold cannot guarantee that the first shot product remains in the rear mold after mold opening, and thus the product cannot be rotated and replaced with the rear mold, and naturally, the product cannot be formed. The original process can only be produced through a sleeving method, that is, the first shot is punched out by one injection molding machine, and then another injection molding machine is used for injection molding, which is low in efficiency and has a certain influence on the quality of the product.

[0003] Therefore, how to provide a mold with front mold ejection to avoid the influence of secondary injection molding on the quality of the product through the sleeving method becomes a technical problem to be solved urgently. CONTENT OF THE UTILITY MODEL

[0004] To overcome the problems in the prior art, the application aims to provide a mold with front mold ejection, which can eject the product through a driving mechanism arranged on the upper mold after one-time injection molding.

[0005] The application is implemented through the following technical scheme.

[0006] The technical scheme provides a mold with front mold ejection, which comprises a first injection mold and a second injection mold, the first injection mold and the second injection mold are each provided with a lower mold, and the two lower molds change positions with each other during injection molding, are used for twice injection molding, the first injection mold further comprises an upper mold, and the inside of the upper mold is provided with a driving mechanism for ejecting a product.

[0007] The utility model further sets up, the driving mechanism is spring, the spring is used for between the upper mold and the first injection mold, the distance of the moving space of the deposit, the bottom of the spring is fixedly connected with the pressing plate, the bottom of the pressing plate is provided with the ejector rod.

[0008] The utility model further sets up, the driving mechanism is pneumatic cylinder, and / or, the driving mechanism is oil cylinder, the pneumatic cylinder is installed to the outside of the upper mold, the output end of the pneumatic cylinder is provided with the push rod, the tail of the push rod is provided with the pressing plate, the inside of the pressing plate is provided with a plurality of ejector rods.

[0009] The utility model further sets up, the driving mechanism is electric push rod, the tail of the push rod is provided with the pressing plate, and the inside of the pressing plate is provided with a plurality of ejector rods.

[0010] The utility model further sets up, the inside of first injection mold is set up in the reserved space for the upper die movement, the height of reserved space is less than the height of spring.

[0011] The utility model further sets up, the push rod and the pressing plate fixed connection.

[0012] The utility model further sets up, the push rod is connected in the inside of pressing plate, is used for driving the movement of pressing plate.

[0013] The utility model further sets up, the pressing plate is used for driving several top rods to move, and the product is pushed out from the upper die, and is left in the inside of lower die.

[0014] The utility model has following technical effects: through drive mechanism, the product is pushed out from the inside of upper die, and is left in the inside of lower die, and then when the two lower dies set up in first injection mold and second injection mold exchange position, can drive product to move simultaneously, and then complete secondary injection molding process, avoid the problem that after once injection molding, the product is demoulded from the upper die, and after once injection molding is completed through one injection molding machine, shifts to another injection molding machine injection molding, and the efficiency is low and the quality of product is influenced.

[0015] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which like reference characters refer to like parts throughout the several views.

[0017] Figure 1 It is the structure schematic view shown in an embodiment of the present application;

[0018] Figure 2 It is the bottom view shown in an embodiment of the present application;

[0019] Figure 3 It is the drive mechanism structure schematic view shown in an embodiment of the present application.

[0020] Fig. 1 is a first injection mold;2, second injection mold;3, lower die;4, upper die;5, spring;6, pressing plate;7, top rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the protection scope of the present application.

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the protection scope of the present application.

[0023] The utility model discloses a mould with front mould ejection, as shown in the figure, Figures 1-3 The utility model discloses a mould with front mould ejection, as shown in the figure,

[0024] As shown in the figure, Figure 3 The driving mechanism is a spring 5, which is used to leave a moving space with a certain distance between the upper die 4 and the first injection mold 1. The bottom of the spring 5 is fixedly connected with a pressing plate 6, and the bottom of the pressing plate 6 is provided with a ejector rod 7.

[0025] It should be noted that after the first injection mold 1 completes injection molding, the injection molding machine drives the upper die plate 4 to move upward to press the spring 5, so that the spring 5 pushes the pressing plate 6 downward by reaction force. At this time, the upper die plate 4 keeps moving upward, and then the pressing plate 6 drives the ejector rod 7 to eject the product from the inside of the upper die 4, so that the product is left in the lower die 3. Then, the two lower dies 3 change positions with each other during the injection molding process to complete twice injection molding.

[0026] As shown in the figure, Figures 1-3 The driving mechanism is a gas cylinder, and / or the driving mechanism is an oil cylinder. The gas cylinder is installed outside the upper die 4, the output end of the gas cylinder is provided with a push rod, the tail of the push rod is provided with a pressing plate 6, and the inside of the pressing plate 6 is provided with a plurality of ejector rods 7.

[0027] As shown in the figure, Figures 1-3 The driving mechanism is an electric push rod, the tail of the push rod is provided with a pressing plate 6, and the inside of the pressing plate 6 is provided with a plurality of ejector rods 7.

[0028] It should be noted that after the first injection mold 1 is completed, the gas cylinder 5 or electric push rod or other driving device provided by the driving mechanism can drive the push rod 9 to move the mounting plate 7 during the process of separating the upper mold 4 from the lower mold 3, and the mounting plate 7 drives the ejector pin 8 to eject the product from the inside of the upper mold 4, so that the product remains in the lower mold 3, and the two lower molds 3 change positions during the injection molding process, and complete the twice injection molding.

[0029] It should be noted that the driving mechanism can drive the ejector pin 7 to move at the same time through the pressing plate 6 to improve the stability of the ejected product.

[0030] As shown in Figure 3 The inside of the first injection mold 1 is provided with a reserved space for the movement of the upper mold 4, and the height of the reserved space is less than the height of the spring 5.

[0031] As shown in Figures 1-3 The push rod is fixedly connected with the pressing plate 6.

[0032] As shown in Figures 1-3 The push rod is connected in the inside of the pressing plate 6, which is used to drive the pressing plate 6 to move.

[0033] As shown in Figures 1-3 The pressing plate 6 is used to drive several ejector pins 7 to move and push the product out of the upper mold 4 and remain in the inside of the lower mold 3.

[0034] It should be noted that the ejector pin 7 is installed in the inside of the upper mold 4, which can eject the product from the upper mold 4 during the demolding process after the first injection molding

[0035] The driving mechanism provided in the inside of the upper mold 4 pushes the product out of the inside of the upper mold 4 and remains in the inside of the lower mold 3, and when the two lower molds 3 provided by the first injection mold 1 and the second injection mold 2 exchange positions, the product can be moved at the same time, and then the twice injection molding process is completed, which avoids the problem that the product cannot be demolded from the upper mold 4 after one injection molding, and the product is transferred to another injection molding machine for injection molding after one injection molding by one injection molding machine, which is low in efficiency and affects the quality of the product.

[0036] The driving mechanism provided in the outside of the upper mold 4 pushes the product out of the inside of the upper mold 4 and remains in the inside of the lower mold 3, and when the two lower molds 3 provided by the first injection mold 1 and the second injection mold 2 exchange positions, the product can be moved at the same time, and then the twice injection molding process is completed.

[0037] Having described various embodiments of the application, it is to be understood that the above description is meant not to limit and not to encompass all of the possible embodiments. Many modifications and variations of this application can be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. It is intended that the scope of the application be defined by the scope of the patent and by the claims as allowed by the patent office, which can include adaptations based on the description, equivalents, and / or substitutions of elements individually or collectively to the entire disclosure.

Claims

1. A mold having front mold knockout, characterized by, Include: First injection mold (1) and second injection mold (2), the first injection mold (1) and second injection mold (2) are provided with lower mold (3), and the two lower molds (3) change position with each other in the injection process, for twice injection molding, the first injection mold (1) further includes upper mold (4), the inside of the upper mold (4) is provided with driving mechanism for ejecting product.

2. The mold with front mold knockout according to claim 1, characterized in that, The driving mechanism is a spring (5), the spring (5) is used to leave a certain distance moving space between the upper mold (4) and the first injection mold (1), the bottom of the spring (5) is fixedly connected with the pressing plate (6), the bottom of the pressing plate (6) is provided with the ejector rod (7).

3. The mold with front mold knockout according to claim 1, wherein, The driving mechanism is a gas cylinder, and / or, the driving mechanism is an oil cylinder, the gas cylinder is installed outside the upper mold (4), the output end of the gas cylinder is provided with a push rod, the tail of the push rod is provided with a pressing plate (6), the inside of the pressing plate (6) is provided with several ejector rods (7).

4. The mold with front mold knockout according to claim 1, wherein, The driving mechanism is an electric push rod, the tail of the push rod is provided with a pressing plate (6), the inside of the pressing plate (6) is provided with several ejector rods (7).

5. The mold with front mold knockout according to claim 2, wherein, The inside of the first injection mold (1) is provided with a reserved space for the movement of the upper mold (4), the height of the reserved space is less than the height of the spring (5).

6. The mold with front mold knockout according to claim 3, wherein, The push rod is fixedly connected with the pressing plate (6).

7. The mold with front mold knockout according to claim 3, wherein The push rod is clamped in the inside of the pressing plate (6), for driving the pressing plate (6) to move.

8. The mold with front mold knockout according to claim 4, wherein, The pressing plate (6) is used to drive several ejector rods (7) to move, push the product out of the upper mold (4) and leave in the inside of the lower mold (3).

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