CN218700905U

CN218700905U - Injection mold prevents overlap structure

Info

Publication number: CN218700905U
Application number: CN202223367001.9U
Authority: CN
Inventors: 王志峰
Original assignee: Qingdao Zhixu Precision Molding Co ltd
Current assignee: Qingdao Zhixu Precision Molding Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-03-24
Anticipated expiration: 2032-12-12

Abstract

The utility model discloses an injection mold prevents structure of flying edge, which comprises a frame, fixed mounting has the hydro-cylinder in the frame, the output fixedly connected with of hydro-cylinder goes up the mould, the middle part of frame is fixed with the bed die, and goes up the mould and set up with the bed die relatively, the equal integrated into one piece in both sides of going up mould and bed die has the wedge, fixed mounting has two risers in the frame, and two risers are about the bed die symmetric distribution. Has the advantages that: the wedge blocks on the upper die and the lower die have a guiding effect, so that the centers of the upper die and the lower die cannot obviously deviate, the distribution balance of the die cavity is ensured, the probability of local flash is reduced, the small offset between the upper die and the lower die can be eliminated by arranging the wedge blocks, the driving motor, the long rod, the nut seat and the deviation rectifying block, the left and right distribution balance of the upper die and the lower die is ensured, the contact position of the die cavity is not deviated any more, and the flash problem caused by unbalanced die assembly is avoided.

Description

Injection mold prevents burr structure

Technical Field

The utility model relates to an injection mold technical field especially relates to an injection mold prevents burr structure.

Background

The injection molding product is a product obtained by heating, plasticizing and melting plastic, injecting the plastic into a cavity of a forming mold for forming, cooling and demolding, wherein most of burrs formed on the surface of the product occur at the opening and closing positions of the mold, and the burrs occur due to various reasons, such as failure of a spring nozzle, excessive abrasion of a screw rod, insufficient material injection amount and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that injection mold is uneven about easily appearing when the compound die among the prior art, can't guarantee the center coincidence of mould and bed die, and the injection mold who provides prevents the flash structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an injection mold prevents structure of flying edge, includes the frame, fixed mounting has the hydro-cylinder in the frame, the output fixedly connected with of hydro-cylinder goes up the mould, the middle part of frame is fixed with the bed die, and goes up the mould and set up with the bed die relatively, the equal integrated into one piece in both sides of going up mould and bed die has the wedge, fixed mounting has two risers in the frame, and two risers are about bed die symmetric distribution, rotate between two risers and install two stock, and two stock are located the preceding, the rear side of bed die respectively, two the stock is connected with two counterpoint mechanisms jointly.

Furthermore, a driving motor is fixedly mounted on one of the vertical plates, an output shaft of the driving motor is coaxially connected with a long rod on the front side of the lower die, the long rod on the front side of the lower die comprises two sections of ball screws with opposite rotation directions, the two sections of ball screws are both matched and connected with nut seats, and the long rod on the rear side of the lower die is connected with two sliding seats in a sliding manner.

Furthermore, the two alignment mechanisms comprise deviation rectifying blocks, the nut seat and the sliding seat which are corresponding in position are fixedly connected with the corresponding deviation rectifying blocks together, the two deviation rectifying blocks are fixed with connecting frames, and supporting plates are fixedly supported at the tops of the two connecting frames.

Furthermore, telescopic plates are fixedly connected between the two support plates and the corresponding vertical plates, electric push rods are fixedly mounted on the two support plates, and connecting arms are fixed at output ends of the two electric push rods.

Furthermore, two link arm all is the L type, two link arm all is fixed with the clamp plate in the one end of keeping away from electric putter.

Furthermore, the anti-tilt plates are fixed on the opposite sides of the two support plates, through grooves are formed in the two anti-tilt plates, and the two connecting arms penetrate through the through grooves in the corresponding sliding positions.

The utility model has the advantages of it is following:

1. the wedge-shaped blocks on the upper die and the lower die have a guiding function, so that the centers of the upper die and the lower die cannot obviously deviate, the distribution balance of a die cavity is ensured, the probability of local flash is reduced, the micro-offset between the upper die and the lower die can be eliminated by arranging the wedge-shaped blocks, the driving motor, the long rod, the nut seat and the deviation rectifying block, the left-right distribution balance of the upper die and the lower die is ensured, the contact position of the die cavity is not deviated any more, and the flash problem caused by unbalanced die assembly is avoided;

2. the electric push rod drives the pressing plate to move downwards by utilizing the connecting arm, so that the pressing plate is pressed against two sides of the upper die, the die closing force can be appropriately improved, the problem of flash caused by die expansion is avoided, and the electric push rod can be detached to be applied to other use scenes under the condition of sufficient die closing force, and the waste of power elements can be avoided.

Drawings

Fig. 1 is a schematic structural view of an anti-flash structure of an injection mold according to the present invention;

fig. 2 is the utility model provides an injection mold prevents rectifying in the structure of overlap and partial structure side view of piece and connection frame.

In the figure: the device comprises a machine frame 1, an oil cylinder 2, an upper die 3, a lower die 4, a vertical plate 5, a driving motor 6, a long rod 7, a deviation rectifying block 8, a nut seat 9, a connecting frame 10, a support plate 11, a telescopic plate 12, an electric push rod 13, a connecting arm 14, a pressure plate 15 and an anti-tilting plate 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, an injection mold anti-flash structure, including frame 1, fixed mounting has hydro-cylinder 2 on frame 1, the output fixedly connected with of hydro-cylinder 2 goes up mould 3, the middle part of frame 1 is fixed with bed die 4, and go up mould 3 and bed die 4 and set up relatively, the equal integrated into one piece in both sides of going up mould 3 and bed die 4 has the wedge, as shown in fig. 1, the wedge inclined plane of going up mould 3 is located the bottom, the wedge inclined plane of bed die 4 is located the top, the inclined plane contact of two relative wedges, fixed mounting has two risers 5 on frame 1, and two risers 5 are about 4 symmetric distributions of bed die, rotate between two risers 5 and install two stock 7, and two stock 7 are located the front and rear side of bed die 4 respectively, two stock 7 are connected with two counterpoint mechanisms jointly.

A driving motor 6 is fixedly mounted on one vertical plate 5, an output shaft of the driving motor 6 is coaxially connected with a long rod 7 on the front side of a lower die 4, the long rod 7 on the front side of the lower die 4 comprises two sections of ball screws with opposite rotating directions, the two sections of ball screws are matched and connected with nut seats 9, and the long rod 7 on the rear side of the lower die 4 is connected with two sliding seats in a sliding manner.

The two alignment mechanisms comprise deviation rectifying blocks 8, the nut seats 9 and the sliding seats which are corresponding in position are fixedly connected with the corresponding deviation rectifying blocks 8, connecting frames 10 are fixed on the two deviation rectifying blocks 8, and supporting plates 11 are fixedly supported on the tops of the two connecting frames 10.

Equal fixedly connected with expansion plate 12 between two extension boards 11 and the riser 5 that corresponds, two expansion plates 12 all include first knot board, second knot board and third knot board, the second knot board insert in the first knot board and rather than sliding connection, the third knot board inserts in the second knot board and rather than sliding connection, the three constitutes together shortens or the expansion plate 12 of extension, equal fixed mounting has electric putter 13 on two extension boards 11, the output of two electric putter 13 all is fixed with even arm 14.

The two connecting arms 14 are both L-shaped, and one ends of the two connecting arms 14 far away from the electric push rod 13 are both fixed with a pressing plate 15.

An anti-tilt plate 16 is fixed on one side of each of the two support plates 11, through grooves are formed in the two anti-tilt plates 16, and the two connecting arms 14 penetrate through the through grooves in the corresponding sliding positions.

During injection molding, the oil cylinder 2 pushes the upper die 3 to press the lower die 4, the inclined surfaces of the two opposite wedge-shaped blocks are contacted, and the inclined surfaces have a guiding function, so that the centers of the upper die 3 and the lower die 4 cannot be obviously deviated, a cavity formed by the upper die 3 and the lower die 4 is distributed in a balanced manner, and the probability of local flash is reduced;

after the upper die 3 is positioned, the driving motor 6 drives the corresponding long rod 7 to rotate, two sections of ball screws with opposite rotation directions are matched with the nut seat 9 together, so that the rotation motion is converted into linear motion, and the two deviation rectifying blocks 8 are driven to be close to and press the side walls of the upper die 3 and the lower die 4, as shown in fig. 1, the positions of the deviation rectifying blocks 8 correspond to the contact and pressing positions of the upper die 3 and the lower die 4, the two deviation rectifying blocks 8 are close to each other and pressed, so that the small offset between the upper die 3 and the lower die 4 can be eliminated, the left and right distribution balance of the upper die 3 and the lower die 4 is ensured, the contact position of a cavity is not deviated, and the problem of flash caused by unbalanced die assembly is avoided;

the deviation rectifying block 8 drives the two support plates 11 to move relatively through the connecting frame 10, the telescopic plates 12 stretch relatively, the electric push rods 13 on the support plates 11 drive the press plates 15 to move downwards through the connecting arms 14, the press plates 15 are enabled to be abutted against two sides of the upper die 3, the die closing force is improved moderately, the electric push rods 13 can be detached to be applied to other use scenes under the condition that the die closing force is enough, and waste of power elements cannot occur.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an injection mold prevents structure of flying edge, includes frame (1), its characterized in that, fixed mounting has hydro-cylinder (2) in frame (1), output fixedly connected with of hydro-cylinder (2) goes up mould (3), the middle part of frame (1) is fixed with bed die (4), and goes up mould (3) and set up with bed die (4) relatively, the equal integrated into one piece in both sides of going up mould (3) and bed die (4) has the wedge, frame (1) is gone up fixed mounting has two risers (5), and two risers (5) are about bed die (4) symmetric distribution, rotate between two risers (5) and install two stock (7), and two stock (7) are located the preceding, rear side of bed die (4) respectively, two stock (7) are connected with two counterpoint mechanisms jointly.

2. An injection mold flash-preventing structure as claimed in claim 1, wherein a driving motor (6) is fixedly installed on one of the vertical plates (5), an output shaft of the driving motor (6) is coaxially connected with a long rod (7) at the front side of the lower mold (4), the long rod (7) at the front side of the lower mold (4) comprises two ball screws with opposite rotation directions, the two ball screws are respectively and cooperatively connected with a nut seat (9), and two sliding seats are slidably connected with the long rod (7) at the rear side of the lower mold (4).

3. An injection mold flash-preventing structure as claimed in claim 2, wherein each of the two alignment mechanisms comprises a deviation-correcting block (8), the nut seat (9) and the slide seat which are correspondingly positioned are fixedly connected with the corresponding deviation-correcting block (8), a connecting frame (10) is fixed on each of the two deviation-correcting blocks (8), and a support plate (11) is fixedly supported on the top of each of the two connecting frames (10).

4. The injection mold flash-preventing structure as claimed in claim 3, wherein a telescopic plate (12) is fixedly connected between each of the two support plates (11) and the corresponding vertical plate (5), each of the two support plates (11) is fixedly provided with an electric push rod (13), and the output ends of the two electric push rods (13) are respectively fixed with a connecting arm (14).

5. An injection mold flash-preventing structure as claimed in claim 4, wherein the two connecting arms (14) are L-shaped, and a pressure plate (15) is fixed at one end of each connecting arm (14) far away from the electric push rod (13).

6. An injection mold flash-preventing structure as claimed in claim 5, wherein an anti-tilt plate (16) is fixed on one side of each of the two support plates (11), through grooves are formed in each of the two anti-tilt plates (16), and the two connecting arms (14) slidably penetrate through the through grooves in corresponding positions.