CN211730097U

CN211730097U - Synchronous early ejection device

Info

Publication number: CN211730097U
Application number: CN202020188680.5U
Authority: CN
Inventors: 刘康康
Original assignee: Tk Mold Sz Ltd
Current assignee: Tk Mold Sz Ltd
Priority date: 2020-02-20
Filing date: 2020-02-20
Publication date: 2020-10-23
Anticipated expiration: 2030-02-20

Abstract

The utility model relates to an injection mold technical field's synchronous ejecting device in advance, use in the mould, including the activity wane with set up respectively in the ejector pin and the ejecting accessory plate at activity wane both ends, the both ends of activity wane use the fixed pin to make reciprocating rotary motion as the axle, the one end length that the ejecting accessory plate was connected to the activity wane is greater than the one end length of connecting the ejector pin, ejecting accessory plate level sets up, one end is connected with the activity wane, the other end lower surface sets up the stopper and beats the screw, the screw thread portion that the screw was beaten to the stopper passes through screw thread and ejecting accessory plate fixed connection, the cover has the catapult on the screw. The utility model discloses based on lever principle, the moment that utilizes movable wane both ends is different, makes in the synchronous motion time first thimble for the earlier ejecting one section distance of second thimble, realizes ejecting in advance. Meanwhile, the automatic reset is realized by the combination of the plug screw and the slingshot, and a mode of ejecting a product or a flow channel in advance is added, so that the structure is simpler and lighter, the structure of the die is simplified, and the cost of the die is saved.

Description

Synchronous early ejection device

Technical Field

The utility model relates to an injection mold technical field, concretely relates to synchronous ejecting device in advance.

Background

In the injection molding technology of the mold, the product or the runner in the mold needs to be demolded in advance before being taken out early, and the main parts which can achieve the purpose in the current production are standard parts from Europe and America. However, the standard parts ordered in the European and American areas are expensive and have long order periods, so that the production period of the die and the delivery time of the product are prolonged, and the production cost is increased.

Utilize the wane to realize the synchronous ejecting of mouth of a river or mould among the prior art, but the structure of mould is difficult to realize automatic re-setting after the drawing of patterns is accomplished to its reset structure is comparatively complicated, and lacks the reliability.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough and defect of prior art, provide a synchronous ejecting device in advance.

The purpose of the utility model is realized through the following technical scheme:

synchronous ejecting device in advance sets up inside the mould, including the activity wane with set up respectively in ejector pin and the ejecting accessory plate at activity wane both ends, the activity wane passes through the base and sets up inside the mould to rotate with the base through the fixed pin and be connected, the both ends that ejector pin and ejecting accessory plate are connected to the activity wane use the fixed pin to do reciprocating rotary motion as the axle, and the one end length that ejecting accessory plate was connected to the activity wane is greater than the one end length of connecting the ejector pin, the one end and the activity wane fixed connection of ejector pin, one end stretch out and be higher than activity wane upper surface, ejecting accessory plate level sets up, and one end is connected with the activity wane, and the other end lower surface sets up the stopper and beats the screw, the screw thread portion that the stopper beaten the screw passes through screw thread and ejecting accessory plate.

Specifically, the mould structure is bottom plate, thimble panel, square iron and B board from upwards in proper order, and the injection molding machine top rod passes the bottom plate and drives thimble bottom plate and thimble panel and reciprocate, and first thimble bottom is located thimble panel top, and vertical upwards passes the B board, and second thimble bottom is located the juncture of thimble panel and thimble bottom plate, vertically upwards passes thimble panel and B board.

Specifically, the upper surface of the ejector pin panel is further provided with a limiting block, and the distance between the upper surface of the limiting block and the lower surface of the B plate is D + D1. The upper top surface of the ejector rod is higher than the limiting block D1, the distance from the upper top surface of the ejector rod to the lower surface of the plate B is D, the upper top surface of the ejector rod is higher than the lower surface of the ejection attached plate D2, and D2 is larger than D1.

Specifically, in a die assembly state, the lower surface of the ejection attachment plate is attached to the upper surface of the ejector pin panel, the bottom end of the first ejector pin is located inside the ejection attachment plate, the plug screw penetrates through the ejector pin panel, the slingshot is located below the ejector pin panel, the movable warping plate prevents one end of the ejection attachment plate from being in a pressing-down state, and the other end of the ejection attachment plate is in a tilting state.

Specifically, the lower surface of the ejection accessory plate is provided with a counter bore, a pressing block is arranged in the counter bore, the pressing block is fixedly connected with the ejection accessory plate through a first screw, a through hole is formed between the bottom surface of the counter bore and the upper surface of the ejection accessory plate and used for containing a first ejector pin, and the lower end of the first ejector pin is abutted to the upper surface of the pressing block.

Compared with the prior art, the utility model following advantage and beneficial effect are included: the utility model discloses use in the mould, based on lever principle, the moment that utilizes the ejector pin at activity wane both ends and ejecting appendage plate is different, makes first thimble in the synchronous motion time ejecting one section distance earlier for the second thimble, realizes ejecting in advance. Meanwhile, the automatic resetting of the structure is realized by the combination of the plug screw and the slingshot, a form of ejecting a product or a runner in advance is added, the structure is simpler and lighter, the structure of the die is simplified, the cost of the die is saved, the ordering period of standard parts is shortened, and the monopoly of standard parts of European and American dies, the die making period and the die making cost are broken.

Drawings

Fig. 1 is an exploded view of the structure of the present invention.

Fig. 2 is an assembly schematic diagram of the ejection attachment plate structure.

Fig. 3 is a schematic view of the structure of the assembly main body of the present invention.

Fig. 4 is a schematic diagram of the structure in the mold of the present invention in the mold closing state.

Fig. 5 is a schematic view of the first step of opening the mold.

Fig. 6 is a schematic diagram of the structure in the mold of the second step of mold opening.

In the figure: 1-base, 2-movable rocker, 3-ejector rod, 4-fixed pin, 5-ejector attachment plate, 6-pressing block, 7-ramming screw, 8-first screw, 9-slingshot, 11-B plate, 12-square iron, 13-ejector pin panel, 14-ejector pin bottom plate, 15-bottom plate, 16-limiting block, 17-injection molding machine ejector rod, 18-first ejector pin, 19-second ejector pin and 20-second screw.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and the specific meanings of the above terms in the present invention can be understood in specific instances by those skilled in the art.

Furthermore, the terms "upper", "lower", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 6, the specific implementation process of the present invention is as follows:

synchronous early ejection device is applied to inside the injection mold. In order to improve the use functionality and appearance requirements of some plastic products, the structures of the plastic products become more complex, and meanwhile, the conditions such as production cost, production period and the like are considered. For making the plastic product can be demoulded in the mould smoothly, plastic product or runner need ejecting drawing of patterns in advance, the utility model discloses can make product or runner synchronous drawing of patterns earlier according to actual demand, ejecting product or runner in advance again.

The synchronous early ejection device is arranged inside the die. The mould structure is from bottom to top in proper order: the ejector rod 17 of the injection molding machine penetrates through the bottom plate 15 to drive the ejector pin bottom plate 15 and the ejector pin panel 13 to move up and down. The bottom end of the first thimble 18 is located above the thimble panel 13 and vertically passes through the B plate 11, and the bottom end of the second thimble 19 is located at the junction of the thimble panel 13 and the thimble base plate 15 and vertically passes through the thimble panel 13 and the B plate 11.

The synchronous early ejection device main body comprises a movable wane 2, an ejector rod 3 and an ejection attachment plate 5. One end of the ejector rod 3 is embedded into one end of the movable wane 2, and the upper end of the ejector rod extends out of the movable wane 2. The ejector attachment plate 5 is horizontally placed on the other end of the movable rocker 2. The movable warping plate 2 is arranged inside the die through the base 1, and the fixing pin 4 penetrates through the fulcrums of the base 1 and the movable warping plate 2 at the same time, so that the movable warping plate 2 rotates in a plane by taking the fixing pin 4 as an axis. The length of one end of the movable warped plate 2, which is used for placing the ejection attached plate 5, is greater than the distance of one end of the ejector rod 3.

The lower surface of the ejection attachment plate 5 is provided with a plug screw 7. The thread part of the plug screw 7 is fixedly connected with the ejection attachment plate 5 through threads, and the slingshot 9 is sleeved on the screw rod of the plug screw 7.

In the mold closing state, the lower surface of the ejector attachment plate 5 is attached to the upper surface of the ejector pin panel 13, and the bottom end of the first ejector pin 18 is located inside the ejector attachment plate 5. Preferably, a counter bore is arranged at a position corresponding to the first ejector pin 18 on the lower surface of the ejection attachment plate 5, the pressing block 6 is fixed at the bottom of the counter bore through a first screw 8, and the pressing block 6 abuts against the bottom end of the first ejector pin 18. Meanwhile, the plugging screw 7 passes through the ejector pin panel 13, and the slingshot 9 is positioned below the ejector pin panel 13. At this time, one end of the movable seesaw 2, which is used for placing the ejection attachment plate 5, is in a downward pressing state, and the other end is in a tilting state.

Specifically, the top surface of the thimble panel 13 is further provided with a stopper 16, and a distance between the top surface of the stopper 16 and the bottom surface of the B plate 11 is D + D1. The upper top surface of the mandril 3 is higher than the limiting block 16D1, and the distance from the upper top surface to the lower surface of the B plate 11 is D. The upper top surface of the ejector rod 3 is higher than the lower surface D2 of the ejector attachment plate 5, and D2> D1. The stopper 16 is fixed to the thimble panel 13 by a second screw 20.

The utility model discloses a concrete implementation way does:

after the injection molding is finished in S01, the mold is in a mold closing state in an initial state.

S02 demolding, wherein the ejector rod 17 of the injection molding machine pushes the ejector base plate 15 to move from bottom to top by a distance D, and the upper surface of the ejector rod 3 abuts against the lower surface of the B plate 11.

S03 demoulding the second step, the injection machine ejector stick 17 continues to push the ejector pin bottom plate 15 to move upwards for a distance D1, the B plate 11 is not moved, the ejector pin 3 is pressed downwards, and simultaneously the ejection attachment plate 5 is ejected upwards, because the movable rocker 2 is provided with a longer end of the ejection attachment plate 5, the distance of the ejection attachment plate 5 which is tilted is greater than D1, namely the ejector attachment plate drives the first ejector pin 18 to eject upwards for a distance D1 which is greater than the distance of the second ejector pin 19 to move upwards. Namely, the first ejector pin 18 is ejected in advance.

And S04, after demolding, the ejector rod 3 of the injection molding machine moves downwards to return to the initial state, at the moment, under the resilience effect of the slingshot 9 and the auxiliary effect of the self gravity of the ejection attached plate 5, the ejection attached plate 5 falls back to the original position downwards, the ejector rod 3 at the other end of the movable warping plate 2 is lifted, and the equipment returns to the original position.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. Synchronous early ejecting device sets up inside the mould, its characterized in that: including the activity wane with set up respectively in ejector pin and the ejecting accessory plate at activity wane both ends, the activity wane passes through the base and sets up inside the mould to rotate with the base through the fixed pin and is connected, the both ends that ejector pin and ejecting accessory plate are connected to the activity wane use the fixed pin to make reciprocating rotary motion as the axle, the one end length that the ejecting accessory plate is connected to the activity wane is greater than the one end length of connecting the ejector pin, the one end and the activity wane fixed connection of ejector pin, one end stretch out and be higher than activity wane upper surface, ejecting accessory plate level sets up, and one end is connected with the activity wane, and the other end lower surface sets up the stopper and beats the screw, the screw thread portion that the stopper beaten the screw passes through screw thread and.

2. The synchronized early ejection device of claim 1, wherein: the mould is bottom plate, thimble panel, square iron and B board from upwards in proper order, and injection molding machine top rod passes the bottom plate and drives thimble bottom plate and thimble panel and reciprocate, and first thimble bottom is located thimble panel top, and vertical upwards passes the B board, and second thimble bottom is located the juncture of thimble panel and thimble bottom plate, and vertical upwards passes thimble panel and B board.

3. The synchronized early ejection device of claim 2, wherein: the upper surface of the ejector pin panel is further provided with a limiting block, the distance between the upper surface of the limiting block and the lower surface of the plate B is D + D1, the upper top surface of the ejector pin is higher than the limiting block D1, the distance between the upper surface of the ejector pin and the lower surface of the plate B is D, the upper top surface of the ejector pin is higher than the lower surface of the ejector attachment plate D2, and D2 is larger than D1.

4. The synchronized early ejection device of claim 2, wherein: in a die assembly state, the lower surface of the ejection attachment plate is attached to the upper surface of the ejector pin panel, the bottom end of the first ejector pin is located inside the ejection attachment plate, the plug screw penetrates through the ejector pin panel, the slingshot is located below the ejector pin panel, the movable warping plate prevents one end of the ejection attachment plate from being in a downward pressing state, and the other end of the ejection attachment plate is in a tilting state.

5. The synchronized early ejection device of claim 1, wherein: the lower surface of the ejection accessory plate is provided with a counter bore, a pressing block is arranged in the counter bore, the pressing block is fixedly connected with the ejection accessory plate through a first screw, a through hole is formed between the bottom surface of the counter bore and the upper surface of the ejection accessory plate and used for containing a first ejector pin, and the lower end of the first ejector pin is abutted to the upper surface of the pressing block.