Injection mold convenient to demold

Abstract

The utility model discloses an injection mold convenient to demold, which belongs to the technical field of molds and comprises a first injection mold assembly, a second injection mold assembly is arranged at the top of the first injection mold assembly, and a mounting bin is mounted at the bottom of the first injection mold assembly; a mounting cavity is reserved in the first injection mold assembly, and a sliding ejection piece is arranged in the mounting cavity. The first extrusion block and the second extrusion block are arranged on the movable piece, so that when a product is ejected out, the first extrusion block and the second extrusion block firstly extrude the corresponding sliding ejection piece at the same time and eject the product out, the effective ejection area is guaranteed, and then the first extrusion block relieves extrusion on the corresponding sliding ejection piece; the group of sliding ejection pieces is shrunk under the elastic action of the spring to release the adhesion with the product, so that the product is easier to fall off during subsequent taking, and the product is not easy to damage.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mould technical field, concretely is a kind of injection mould of easy demoulding. BACKGROUND

[0002] Plastic products are one of the common products in modern daily life and production process, its variety is various, market demand is large, and its required steps in production process are not same for different products, for example, injection molding production using injection molding machine is one of the most commonly used ways, when using injection molding machine to produce plastic products, generally need to be processed by cooperating with mould, injection mould is needed in this process;

[0003] The existing injection mould is equipped with movable ejection part for facilitating subsequent demolding, but in actual application process, the effective area of ejection is too small to cause insufficient stress surface of product, and damage is prone to occur during ejection, and the effective area of ejection is too large to cause subsequent mechanical wall or manual product taking to be prone to separation, adhesion and other conditions. UTILITY MODEL CONTENT

[0004] In order to overcome the above defects, the utility model provides a kind of injection mould of easy demoulding, solve the problem that product is prone to damage and demolding is not easy when being ejected.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a kind of injection mould of easy demoulding, including first injection mould assembly,

[0006] The top of the first injection mould assembly is provided with the second injection mould assembly, and the bottom of the first injection mould assembly is provided with the installation bin;

[0007] The inside of the first injection mould assembly is reserved with installation cavity, the inside of the installation cavity is provided with sliding ejector, and the sliding ejector extends to the inside of the installation bin through the first injection mould assembly, the bottom of the one side of the sliding ejector is provided with limit slot;

[0008] The sliding ejector is provided with elastic mechanism for supporting itself;

[0009] The inside of the installation bin is provided with movable element, and the middle position of the top of the movable element is provided with first extrusion block, and the two sides of the top of the movable element are provided with second extrusion block;

[0010] The top of the movable element is uniformly provided with limit locking element;

[0011] The installation bin is provided with execution mechanism for driving movable element to move.

[0012] As a further scheme of the utility model: the installation bin is integrally made with the first injection mold assembly, and a maintenance window is installed at one end of the installation bin.

[0013] As a further scheme of the utility model: the transverse central axis of the sliding ejection piece is parallel to the transverse central axis of the first injection mold assembly, and the sliding ejection piece is slidably connected with the first injection mold assembly and the installation bin.

[0014] As a further scheme of the utility model: the elastic mechanism comprises a limiting mounting plate, the limiting mounting plate is installed at the middle position of the outer wall of the sliding ejection piece, a spring is installed at the bottom of the limiting mounting plate, and the end of the spring away from the limiting mounting plate is connected with the first injection mold assembly.

[0015] As a further scheme of the utility model: the movable piece, the first extrusion block and the second extrusion block are integrally made, and the movable piece is slidably connected with the installation bin.

[0016] As a further scheme of the utility model: the executing mechanism comprises a servo motor, the servo motor is installed at one side inside the installation bin, the output end of the servo motor is connected with a lead screw, and the lead screw penetrates through the movable piece.

[0017] As a further scheme of the utility model: the lead screw is threadedly connected with the movable piece, and the lead screw is rotatably connected with the installation bin.

[0018] Compared with the prior art, the utility model has the beneficial effects that:

[0019] 1. By setting the first extrusion block and the second extrusion block on the movable piece, when the product is ejected, the first extrusion block and the second extrusion block will simultaneously extrude the corresponding sliding ejection piece and eject the product at first, guaranteeing the effective ejection area, and then the first extrusion block will release the extrusion on the corresponding sliding ejection piece, so that the sliding ejection piece is retracted under the elastic action of the spring and is released from the adhesion to the product, so that the product is more easily taken off in the subsequent taking.

[0020] 2. By setting the limiting locking piece on the movable piece, when the ejection task is not needed to be executed, the movable piece will drive the limiting locking piece to be inserted into the limiting slot on the corresponding sliding ejection piece, so that the sliding ejection piece can be locked, thereby guaranteeing the stability between the sliding ejection piece and the first injection mold assembly during the injection molding. DRAWINGS

[0021] Figure 1 is the front view structural schematic diagram of the utility model;

[0022] Figure 2 is the front view sectional view structural schematic diagram of the utility model;

[0023] Figure 3 is the utility model Figure 2 of A place amplification structure schematic diagram;

[0024] Figure 4 is the utility model's overhead section structure schematic diagram.

[0025] In the drawing: 1, first injection mold assembly;2, second injection mold assembly;3, installation warehouse;4, overhaul window;5, installation cavity;6, sliding ejection piece;7, limit slot;8, limit installation plate;9, spring;10, movable piece;11, first extrusion block;12, second extrusion block;13, limit locking piece;14, servo motor;15, screw rod. Specific implementation

[0026] The technical scheme of the patent will be further described in detail below in combination with specific implementation manners.

[0027] As Figures 1-4 indicated, the utility model provides a technical scheme:

[0028] A convenient demolding injection mold, including first injection mold assembly 1, the top of first injection mold assembly 1 is provided with second injection mold assembly 2, and the bottom of first injection mold assembly 1 is installed with installation warehouse 3, and the bottom of first injection mold assembly 1 and the top of second injection mold assembly 2 are installed with electric push rod respectively, first injection mold assembly 1 and second injection mold assembly 2 can be combined or separated by electric push rod, and injection molding task is completed in coordination;

[0029] Installation warehouse 3 is integrally made with first injection mold assembly 1, and one end of installation warehouse 3 is installed with overhaul window 4, which can be installed on first injection mold assembly 1 in a screw connection mode, facilitating disassembly by staff and overhaul of the inside part of installation warehouse 3;

[0030] The inside of first injection mold assembly 1 is reserved with installation cavity 5, the inside of installation cavity 5 is provided with sliding ejection piece 6, and sliding ejection piece 6 extends to the inside of installation warehouse 3 through first injection mold assembly 1, the bottom of one side of sliding ejection piece 6 is provided with limit slot 7, the transverse center axis of sliding ejection piece 6 is parallel with the transverse center axis of first injection mold assembly 1, and sliding ejection piece 6 is slidingly connected with first injection mold assembly 1 and installation warehouse 3 respectively, when first injection mold assembly 1 and second injection mold assembly 2 are separated after injection molding, sliding ejection piece 6 can push out the product by sliding upwards and separate from first injection mold assembly 1;

[0031] The sliding ejection piece 6 is provided with an elastic mechanism for supporting itself, which includes a limiting mounting plate 8 installed at the middle of the outer wall of the sliding ejection piece 6, a spring 9 installed at the bottom of the limiting mounting plate 8, and the end of the spring 9 away from the limiting mounting plate 8 connected with the first injection mold assembly 1, so that the spring 9 can shrink into the inside of the first injection mold assembly 1 and the mounting bin 3 when the sliding ejection piece 6 is not extruded from outside, and the spring 9 can be a strong spring with a spring force greater than the adhesion between the sliding ejection piece 6 and the product;

[0032] The inside of the mounting bin 3 is provided with a movable piece 10, the middle of the top of which is provided with a first extrusion block 11, and the two sides of the top of the movable piece 10 are provided with second extrusion blocks 12, the movable piece 10, the first extrusion block 11 and the second extrusion blocks 12 are integrally made, and the movable piece 10 is slidingly connected with the mounting bin 3, the first extrusion block 11 is isosceles trapezoidal, and the second extrusion blocks 12 are right trapezoidal, so that when the movable piece 10 drives the first extrusion block 11 and the second extrusion blocks 12 to move close to the corresponding sliding ejection piece 6, the first extrusion block 11 and the second extrusion blocks 12 will first drive the corresponding sliding ejection piece 6 to move upward respectively, thereby performing the task of ejecting and separating the product, then the top of the second extrusion blocks 12 continues to extrude the corresponding sliding ejection piece 6, while the first extrusion block 11 will gradually reduce the extrusion amplitude of the corresponding sliding ejection piece 6, thereby enabling the group of sliding ejection pieces 6 to move downward, thereby performing the task of separating itself from the product, so that the product has a larger ejection surface when being ejected and separated, and the adhesion surface between the product and the sliding ejection piece 6 becomes smaller when being taken later, thereby facilitating subsequent taking, and in actual application, the first extrusion block 11, the second extrusion blocks 12 and the corresponding sliding ejection piece 6 can be provided with multiple groups as needed;

[0033] The top of the movable piece 10 is uniformly provided with a limiting locking piece 13, so that after the above ejection task is completed and the product is taken, the movable piece 10 moves to the initial position, and the limiting locking piece 13 is inserted into the corresponding limiting slot 7, thereby fully limiting the position of the multiple groups of sliding ejection pieces 6, thereby ensuring the stability between the sliding ejection piece 6 and the first injection mold assembly 1 during subsequent injection molding;

[0034] The inside of the mounting bin 3 is provided with an execution mechanism for driving the movable piece 10 to move, which includes a servo motor 14 installed on one side of the inside of the mounting bin 3, a lead screw 15 connected with the output end of the servo motor 14, and the lead screw 15 penetrating through the movable piece 10, the lead screw 15 and the movable piece 10 being threadedly connected, and the lead screw 15 and the mounting bin 3 being rotationally connected, so that when the servo motor 14 drives the lead screw 15 to rotate correspondingly, the movable piece 10 will move in the corresponding direction, thereby cooperating to complete the above product ejection task.

[0035] The working principle of the utility model: in use, the device is powered by external power supply or battery, the first injection mold assembly 1 and the second injection mold assembly 2 are separated after completing the injection task by combination, the product is attached to the first injection mold assembly 1, at this time, the servo motor 14 drives the lead screw 15 to rotate forward, the movable element 10 moves a distance towards the servo motor 14, in this process, the second extrusion block 12 always keeps extruding the corresponding sliding ejection element 6, the first extrusion block 11 first synchronously applies extrusion force to the corresponding sliding ejection element 6, then gradually releases the extrusion to the corresponding sliding ejection element 6, so that multiple groups of sliding ejection elements 6 can first eject the product at the same time, then part of the sliding ejection element 6 releases the adhesion with the product, after the above operation is completed, the product is taken down by the mechanical arm or manually, then the servo motor 14 drives the movable element 10 to move back to the original position, the limiting lock 13 is inserted into the corresponding limiting slot 7 again, multiple groups of sliding ejection elements 6 are completely fixed on the first injection mold assembly 1, and the subsequent injection task can be performed.

[0036] The above detailed the preferred embodiment of the patent, but the patent is not limited to the above embodiment, within the knowledge of those skilled in the art, various changes can be made without departing from the purpose of the patent.

Claims

1. A convenient demolding injection mold, comprising a first injection mold assembly (1), characterized in that: the top of the first injection mold assembly (1) is provided with a second injection mold assembly (2), and the bottom of the first injection mold assembly (1) is provided with a mounting bin (3); an installation cavity (5) is reserved in the first injection mold assembly (1), a sliding ejection member (6) is arranged in the installation cavity (5), the sliding ejection member (6) extends through the first injection mold assembly (1) to the inside of the mounting bin (3), and a limiting groove (7) is arranged at the bottom of one side of the sliding ejection member (6); an elastic mechanism is arranged on the sliding ejection member (6) for supporting itself; an active member (10) is arranged in the mounting bin (3), a first extrusion block (11) is arranged at the middle position of the top of the active member (10), and a second extrusion block (12) is arranged on both sides of the top of the active member (10); a limiting locking member (13) is uniformly arranged on the top of the active member (10); an execution mechanism is arranged in the mounting bin (3) for driving the active member (10) to move.

2. A conveniently demoldable injection mold according to claim 1, characterized in that, The mounting bin (3) is integrally made with the first injection mold assembly (1), and one end of the mounting bin (3) is provided with an inspection window (4).

3. A conveniently demoldable injection mold according to claim 1, wherein The transverse center axis of the sliding ejection member (6) is parallel to the transverse center axis of the first injection mold assembly (1), and the sliding ejection member (6) is slidably connected with the first injection mold assembly (1) and the mounting bin (3) respectively.

4. The easy-release injection mold of claim 1, wherein, The elastic mechanism comprises a limiting mounting plate (8) arranged at the middle position of the outer wall of the sliding ejection member (6), a spring (9) arranged at the bottom of the limiting mounting plate (8), and the end of the spring (9) away from the limiting mounting plate (8) connected with the first injection mold assembly (1).

5. A conveniently demoldable injection mold according to claim 1, wherein The active member (10), the first extrusion block (11) and the second extrusion block (12) are integrally made, and the active member (10) is slidably connected with the mounting bin (3).

6. A conveniently demoldable injection mold according to claim 1, wherein The execution mechanism comprises a servo motor (14) arranged on one side of the inside of the mounting bin (3), and a lead screw (15) connected with the output end of the servo motor (14) and penetrating through the active member (10).

7. A conveniently demoldable injection mold according to claim 6, characterized in that, The lead screw (15) is threadedly connected with the active member (10), and the lead screw (15) is rotatably connected with the mounting bin (3).

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