CN210283101U - Springboard type core-pulling mechanism and injection mold - Google Patents

Abstract

The utility model discloses a mechanism and injection mold of loosing core of diving board formula relates to mould technical field. The elastic plate type core pulling mechanism comprises an elastic plate, a movable template, an elastic piece, a first sliding block, a movable mold core, a second sliding block, a guide sliding block and a guide block. The elastic plate is attached to the movable template, the elastic piece is installed on the elastic plate and connected with the movable template, the movable mold core is fixedly installed in the movable template and connected with the guide block, the first sliding block is connected to the elastic plate, extends into the movable template and is connected with the guide sliding block, the guide sliding block is in sliding fit with the second sliding block, and the second sliding block is in sliding fit with the guide block. Compared with the prior art, the utility model provides a mechanism of loosing core of diving board formula is owing to adopted the diving board of being connected through elastic component and movable mould board and respectively with guide block and guide block complex second slider, so can realize the operation of loosing core of long distance product under the circumstances of guaranteeing dynamic balance, improve stability, improve product quality to the later maintenance of being convenient for.

Description

Springboard type core-pulling mechanism and injection mold

Technical Field

The utility model relates to the technical field of mold, in particular to mechanism and injection mold of loosing core of diving board formula.

Background

When the product assembly buckle is inside crooked, traditional mould need accomplish the operation of loosing core of inside buckle with integral oblique top, nevertheless because buckle on the air guide door product extends to the both ends of air guide door, under this condition, if still adopt integral oblique top structure, then make ejecting in-process power unbalance easily, poor stability leads to product quality low to whole non-inlay piece formula structure is unfavorable for the later maintenance.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem how realize the operation of loosing core of long distance product under the circumstances of guaranteeing power balance, improve the stability of the motion in-process of loosing core, improve product quality to the later maintenance of being convenient for.

In order to solve the above problem, the technical scheme of the utility model is realized like this:

the first aspect, the utility model provides a mechanism of loosing core of diving board formula, including the diving board, the movable mould board, the elastic component, first slider, movable mould benevolence, the second slider, guide block and guide block, the diving board sets up with the movable mould board laminating, the elastic component is installed on the diving board, and be connected with the movable mould board, movable mould benevolence fixed mounting is in the movable mould board, and be connected with the guide block, first slider is connected on the diving board, and stretch into the movable mould board, and be connected with guide block, guide block and second slider sliding fit, second slider and guide block slider cooperation, the movable mould board can be kept away from under the effect of elastic component when the die sinking to drive through first slider and lead the slider along the first direction motion, guide block can drive the second slider along the motion of second direction through the guide block, first direction is crossing with the second direction. Compared with the prior art, the utility model provides a mechanism of loosing core of diving board formula is owing to adopted the diving board of being connected through elastic component and movable mould board and respectively with guide block and guide block complex second slider, so can realize the operation of loosing core of long distance product under the circumstances of guaranteeing dynamic balance, improve the stability of the motion in-process of loosing core, improve product quality to the later maintenance of being convenient for.

Furthermore, the second sliding block is provided with a first sliding groove, the guide sliding block is arranged in the first sliding groove in a sliding mode, and the extending direction of the first sliding groove is obliquely arranged relative to the first direction and obliquely arranged relative to the second direction. When the mold is opened, the first sliding block drives the guide sliding block to move along the first direction, the position of the guide sliding block is limited by the first sliding groove, and the guide sliding block applies thrust to the first sliding groove, so that the second sliding block moves along the second direction under the action of the guide block.

Further, first slider slope is provided with the installation face, and installation face and second slider sliding fit have seted up the mounting groove on the installation face, lead slider fixed mounting in the mounting groove, and the installation face is parallel with the extending direction of first spout. The second slider can slide for the installation face to improve the stability of motion, the mounting groove can be fixed and spacing to leading the slider, prevents to lead the slider and breaks away from first slider.

Furthermore, a limiting groove is formed in the mounting surface, the side surface and the bottom surface are arranged adjacent to the limiting groove, the guide block extends into the limiting groove and is in sliding fit with the side surface, and the guide block can be abutted against the bottom surface. The side can prevent that the guide block from taking place the displacement in the second direction, and the guide block can prescribe a limit to the extreme position of first slider, and the compound die is accomplished the back, and the guide block supports with the bottom surface, prevents that first slider from continuing to shift up along the first direction.

Furthermore, a second sliding groove is formed in the second sliding block, the guide block is arranged in the second sliding groove in a sliding mode, and the extending direction of the second sliding groove is the second direction. The guide block can carry on spacingly to the second spout for the second slider only can slide along the second direction, thereby realizes the operation of loosing core.

Further, the elastic component includes fixing base and nitrogen spring, and fixing base fixed mounting is on the diving board, and with nitrogen spring connection, the one end that the fixing base was kept away from to the nitrogen spring supports with the movable mould board and holds. The nitrogen spring is in compression state all the time, during the die sinking, and the diving board is to the direction motion of keeping away from the movable mould board, and nitrogen spring exerts thrust to the movable mould board this moment for the movable mould board keeps motionless, and the diving board separates with the movable mould board, and at this in-process, first slider moves along the first direction, realizes the operation of loosing core to the product on the first direction, and meanwhile, the guide block passes through the guide block and drives the second slider and slide along the second direction, thereby realizes the operation of loosing core to the product on the second direction.

Furthermore, a containing groove is formed in one side, close to the elastic plate, of the movable template, and the nitrogen spring extends into the containing groove and abuts against the bottom wall of the containing groove. The containing groove can be limited to the position of the nitrogen spring, so that the stretching direction of the nitrogen spring is the same as the axial direction of the containing groove, the elastic direction of the nitrogen spring is the same as the mold opening direction, and the power balance degree is improved.

Furthermore, a fixing groove is formed in one side, close to the movable template, of the elastic plate, a fixing table is arranged on the first sliding block, and the fixing table is fixedly installed in the fixing groove. The fixed slot can be fixed and spacing to the fixed block, prevents that the fixed block from breaking away from the diving board to the relative position of fixed first slider and diving board.

Furthermore, the elastic plate is provided with a limiting block, the limiting block is L-shaped, the movable template is provided with a guide chute, one side, close to the elastic plate, in the guide chute is provided with a stop block, the limiting block is arranged in the guide chute in a sliding mode, and the limiting block can be abutted against the stop block. The spout can carry on spacingly to the stopper for the stopper can only follow first direction and slide, and the backstop piece can be injectd the extreme position of stopper, and during the die sinking, the bullet board separates with the movable mould board, and when the interval of bullet board and movable mould board was for predetermineeing the distance, the stopper was supported with the backstop piece and is held, and the interval of bullet board and movable mould board can not take place the change again afterwards, and bullet board and movable mould board move towards the die sinking direction jointly.

In a second aspect, the utility model provides an injection mold, which comprises the elastic plate type core-pulling mechanism, the elastic plate type core pulling mechanism comprises an elastic plate, a movable template, an elastic piece, a first slide block, a movable mold core, a second slide block, a guide slide block and a guide block, wherein the elastic plate is attached to the movable template, the elastic piece is arranged on the elastic plate, and is connected with the movable template, the movable mold core is fixedly arranged in the movable template and is connected with the guide block, the first slide block is connected on the elastic plate and extends into the movable template, and is connected with a guide slide block, the guide slide block is in sliding fit with a second slide block, the second slide block is matched with a guide block slide block, the elastic plate can be far away from the movable template under the action of an elastic piece when the mould is opened, the guide slide block can drive the second slide block to move along a second direction through the guide block, and the first direction is intersected with the second direction. Injection mold can realize the operation of loosing core of long distance product under the circumstances of guaranteeing power balance, improves the stability of the motion in-process of loosing core, improves product quality to be convenient for later maintenance, it is practical reliable.

Drawings

Fig. 1 is a schematic structural view of a springboard core-pulling mechanism according to a first embodiment of the present invention when a product is formed;

fig. 2 is a schematic structural diagram of a springboard core-pulling mechanism according to a first embodiment of the present invention;

fig. 3 is an exploded view of a springboard core-pulling mechanism according to a first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a viewing angle of the cooperation between the first slider and the second slider in the springboard core-pulling mechanism according to the first embodiment of the present invention;

fig. 5 is a schematic structural diagram of another view angle of the cooperation of the first slider and the second slider in the springboard core-pulling mechanism according to the first embodiment of the present invention;

fig. 6 is a schematic structural diagram of a viewing angle of a second slider in the springboard core-pulling mechanism according to the first embodiment of the present invention;

fig. 7 is a schematic structural view of another view angle of the second slider in the springboard core-pulling mechanism according to the first embodiment of the present invention;

fig. 8 is a force analysis diagram of a second slide block in the springboard core-pulling mechanism according to the first embodiment of the present invention;

fig. 9 is a schematic structural view of the springboard core-pulling mechanism according to the first embodiment of the present invention in a mold closing state;

fig. 10 is a schematic structural view of the springboard core-pulling mechanism according to the first embodiment of the present invention in an open state;

fig. 11 is a schematic structural view of a viewing angle at which an elastic plate is connected to a movable mold plate in the elastic plate type core pulling mechanism according to the first embodiment of the present invention;

fig. 12 is a schematic structural view of another view angle of the connection between the springboard and the movable die plate in the springboard core-pulling mechanism according to the first embodiment of the present invention;

fig. 13 is a schematic structural view of an injection mold according to a second embodiment of the present invention.

Description of reference numerals:

10-injection molding; 100-springboard core-pulling mechanism; 110-a springboard; 111-a fixation groove; 112-a stopper; 120-moving the template; 121-a receiving groove; 122-a guide chute; 123-a stop block; 130-an elastic member; 131-a fixed seat; 132-nitrogen spring; 140-a first slider; 141-a mounting surface; 142-a mounting groove; 143-a limit groove; 144-side; 145-bottom surface; 146-a stationary table; 150-moving mold core; 151-first subsection; 152-a second subsection; 153-third subsection; 160-a second slider; 161-a first runner; 162-a second runner; 170-a guide block; 180-a guide block; 200-fixing a template; 300-fixing the mold base plate; 400-moving the die base plate; 500-product.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

First embodiment

Referring to fig. 1, fig. 2 and fig. 3 in combination, an embodiment of the present invention provides a springboard core-pulling mechanism 100, which is used for performing core-pulling molding on a product 500. It can realize the operation of loosing core of long distance product 500 under the circumstances of guaranteeing power balance, improves the stability of the motion in-process of loosing core, improves product 500 quality to be convenient for later maintenance. In this embodiment, product 500 is the air guide door, and the side of air guide door is provided with the buckle that extends to the air guide door both ends, and because the distance between the air guide door both ends is longer, the length that leads to the buckle is longer, so utilize the mechanism 100 of loosing core of diving board formula to loose core the air guide door, can enough realize the shaping of loosing core to the buckle characteristic, again can loose core the in-process guarantee dynamic balance, improve stability, improve product 500's quality. But not limited thereto, in other embodiments, the product 500 may be a housing or other elongated component, and the type of the product 500 is not particularly limited.

The pop plate core-pulling mechanism 100 includes a pop plate 110, a movable mold plate 120, an elastic member 130, a first slider 140, a movable mold core 150, a second slider 160, a guide slider 170, and a guide block 180. The elastic plate 110 is attached to the movable die plate 120, the elastic piece 130 is installed on the elastic plate 110 and connected with the movable die plate 120, the elastic piece 130 is always in a compression state, and the elastic piece 130 can apply thrust to the movable die plate 120 in the die opening process so as to separate the movable die plate 120 from the elastic plate 110. The movable mold core 150 is fixedly installed in the movable mold plate 120 and connected to the guide block 180, the movable mold core 150 is used for combining with a fixed mold core (not shown) to form a mold cavity (not shown), the mold cavity is used for filling with molten plastic, and the molten plastic is cooled after filling the mold cavity to form the product 500.

It should be noted that the first slide block 140 is connected to the spring plate 110, extends into the movable mold plate 120, passes through the movable mold core 150, and is connected to the guide block 170, and the first slide block 140 can move along with the movement of the spring plate 110, so as to drive the guide block 170 to move. The guide sliding block 170 is in sliding fit with the second sliding block 160, the guide sliding block 170 can drive the second sliding block 160 to move, the second sliding block 160 is in sliding fit with the guide block 180, and the guide block 180 can limit the second sliding block 160, so that the second sliding block 160 can only move along the second direction. The elastic plate 110 can be kept away from the movable die plate 120 along the first direction under the action of the elastic element 130 when the die is opened, so that the first slider 140 drives the guide slider 170 to move along the first direction, so that the first slider 140 is kept away from the product 500, and the core pulling operation of the first slider 140 on the product 500 is realized.

In this embodiment, the springboard 110 is detachably connected to the first sliding block 140 by screws, the first sliding block 140 is detachably connected to the guiding block 170 by screws, the guiding block 180 is detachably connected to the movable mold core 150 by screws, and the springboard core-pulling mechanism 100 can form an inlaid structure by using the detachable connection manner of screws, which is convenient for later maintenance.

Specifically, the first slider 140 is used for performing core-pulling molding on the surface of the inner side portion of the product 500 in a first direction, and the second slider 160 is used for performing core-pulling molding on the snap feature of the product 500 in a second direction. First slider 140 can drive second slider 160 in the motion of loosing core and loose core the operation, and is stable high-efficient, can realize the shaping of loosing core to product 500 fast, improves production efficiency. In addition, the first direction intersects the second direction, and in this embodiment, the first direction and the second direction are perpendicular to each other, but the present invention is not limited thereto, and in other embodiments, the first direction may be inclined with respect to the second direction.

In this embodiment, the movable mold core 150 is separated from the other, and the movable mold core 150 includes a first part 151, a second part 152, and a third part 153, wherein the first part 151 and the second part 152 are separated from each other, the first part 151 is used for molding the surface of the inner portion of the product 500, and the first slider 140 extends into the movable mold plate 120, is disposed between the first part 151 and the second part 152, and is in sliding fit with the first part 151 and the second part 152. The third section 153 is fixedly connected to the upper side of the second section 152, the third section 153 is matched with the second slider 160 to form the snap feature of the product 500, and the third section 153 can limit the second slider 160.

Referring to fig. 4, 5, 6 and 7, it should be noted that the second slider 160 is provided with a first sliding chute 161 and a second sliding chute 162, and the first sliding chute 161 and the second sliding chute 162 are arranged at an interval. The guide slider 170 is slidably disposed in the first sliding groove 161, and the guide slider 170 can limit the first sliding groove 161. The extending direction of the first sliding chute 161 is inclined relative to the first direction and inclined relative to the second direction, and the extending direction of the first sliding chute 161 is arranged in an included angle formed by the combination of the first direction and the second direction. Guide block 180 slides and sets up in second spout 162, and the extending direction of second spout 162 is the second direction, and guide block 180 can carry on spacingly to second spout 162 for second slider 160 only can slide along the second direction, thereby realizes the operation of loosing core. When the mold is opened, the first slide block 140 drives the guide slide block 170 to move along the first direction, the position of the guide slide block 170 is limited by the first sliding groove 161 at the moment, the guide slide block 170 applies thrust to the first sliding groove 161, and at the moment, the second slide block 160 can only move along the second direction due to the limiting effect of the guide block 180 on the second sliding groove 162.

In this embodiment, first runner 161 and second runner 162 are the T-slot to improve guide block 170 and first runner 161 sliding fit's stability, and improve guide block 180 and second runner 162 sliding fit's stability, strengthen spacing effect.

It should be noted that the first slider 140 is obliquely provided with a mounting surface 141, the mounting surface 141 is parallel to the extending direction of the first sliding chute 161, the mounting surface 141 is in sliding fit with the second slider 160, the second slider 160 can slide relative to the mounting surface 141, and the mounting surface 141 can limit the position of the second slider 160, so as to improve the stability of the movement.

Specifically, the mounting surface 141 is provided with a mounting groove 142 and a limiting groove 143. The guide block 170 is fixedly installed in the installation groove 142, and the installation groove 142 can fix and limit the guide block 170, so that the guide block 170 is prevented from being separated from the first slide block 140. The limiting groove 143 is adjacently provided with a side surface 144 and a bottom surface 145, the guide block 180 extends into the limiting groove 143 and is in sliding fit with the side surface 144, and the guide block 180 can be abutted against the bottom surface 145. The side surface 144 can prevent the guide block 180 from displacing in the second direction, the guide block 180 can limit the limit position of the first slide block 140, and after the mold closing is completed, the guide block 180 abuts against the bottom surface 145 to prevent the first slide block 140 from moving upwards continuously in the first direction.

In this embodiment, the number of the first sliding block 140 and the second sliding block 160 is one, the number of the guide sliding block 170, the guide block 180, the first sliding groove 161, the second sliding groove 162, the mounting groove 142, and the limiting groove 143 is plural, each guide sliding block 170 is in sliding fit with one first sliding groove 161, each guide sliding block 180 is in sliding fit with one second sliding groove 162, each guide sliding block 170 is fixedly mounted in one mounting groove 142, and each guide sliding block 180 extends into one limiting groove 143. The first slider 140 and the second slider 160 are both extended along the length direction of the product 500, and the plurality of first chutes 161 are arranged on the second slider 160 at intervals along the length direction of the product 500.

Referring to fig. 8, it should be noted that, in the process that the guide block 170 drives the second slider 160 to move along the second direction through the guide block 180, the guide block 170 moves along the first direction, and at this time, the guide block 170 applies a pushing force to the side wall of the first sliding slot 161, the direction of the pushing force is perpendicular to the extending direction of the first sliding slot 161, and the pushing force is decomposed to form a component parallel to the first direction and a component parallel to the second direction, at this time, because the second sliding slot 162 extends along the second direction, the guide block 180 is slidably disposed in the second sliding slot 162, the guide block 180 remains stationary, and the first direction is perpendicular to the second direction, so that the guide block 180 generates a holding force to the side wall of the second sliding slot 162 to balance the component parallel to the first direction on the second slider 160, so that the second slider 160 can only move under the action of the component parallel to the second direction, i.e., in the extending direction of the second chute 162. For ease of understanding, the pushing force exerted by the slider guide 170 on the side wall of the first sliding chute 161 is denoted as fsotal, the component force parallel to the first direction is denoted as F1, and the component force parallel to the second direction is denoted as F2.

Referring to fig. 9 and 10, the elastic member 130 includes a fixing base 131 and a nitrogen spring 132. The fixing seat 131 is fixedly installed on the elastic plate 110 and connected to the nitrogen spring 132, the fixing seat 131 can fix the position of the nitrogen spring 132, and one end of the nitrogen spring 132, which is far away from the fixing seat 131, abuts against the movable die plate 120 to apply a pushing force to the movable die plate 120. Specifically, the nitrogen spring 132 is always in a compressed state, when the mold is opened, the spring plate 110 moves in a direction away from the movable mold plate 120, at this time, the nitrogen spring 132 applies a pushing force to the movable mold plate 120, so that the movable mold plate 120 remains stationary, the spring plate 110 is separated from the movable mold plate 120, in the process, the first slider 140 moves in the first direction, the core pulling operation of the product 500 in the first direction is realized, meanwhile, the guide slider 170 drives the second slider 160 to slide in the second direction through the guide block 180, and the core pulling operation of the product 500 in the second direction is realized.

In this embodiment, a containing groove 121 is formed on one side of the movable mold plate 120 close to the elastic plate 110, and the nitrogen spring 132 extends into the containing groove 121 and abuts against the bottom wall of the containing groove 121. The containing groove 121 can limit the position of the nitrogen spring 132, so that the stretching direction of the nitrogen spring 132 is the same as the axial direction of the containing groove 121, the elastic direction of the nitrogen spring 132 is the same as the mold opening direction, and the power balance degree is improved.

In this embodiment, a fixing groove 111 is formed on one side of the elastic plate 110 close to the movable mold plate 120, the first slider 140 is provided with a fixing table 146, and the fixing table 146 is fixedly installed in the fixing groove 111. Specifically, the fixing table 146 is detachably coupled to the bottom wall of the fixing groove 111 by a screw, facilitating installation and maintenance of the first slider 140. The fixing groove 111 can fix and limit the fixing block, and prevent the fixing block from being separated from the elastic plate 110, thereby fixing the relative position of the first slider 140 and the elastic plate 110.

Referring to fig. 11 and 12, in the present embodiment, the elastic plate 110 is provided with a limiting block 112, the limiting block 112 is L-shaped, the movable mold plate 120 is provided with a guiding chute 122, a stopping block 123 is disposed at a side of the guiding chute 122 close to the elastic plate 110, the limiting block 112 is slidably disposed in the guiding chute 122, and the limiting block 112 can abut against the stopping block 123. The sliding guide groove 122 can limit the limiting block 112, so that the limiting block 112 can only slide along the first direction. In addition, the stop block 123 can limit the limit position of the stop block 112, when the mold is opened, the elastic plate 110 is separated from the movable mold plate 120, when the distance between the elastic plate 110 and the movable mold plate 120 is a preset distance, the stop block 112 abuts against the stop block 123, then the distance between the elastic plate 110 and the movable mold plate 120 does not change, and the elastic plate 110 and the movable mold plate 120 move towards the mold opening direction together.

It should be noted that the mold opening process of the elastic plate type core pulling mechanism 100 is divided into two stages, in the first stage, the elastic plate 110 moves towards the mold opening direction, that is, towards the direction away from the movable mold plate 120, that is, towards the first direction, at this time, the nitrogen spring 132 is in a compressed state and applies a pushing force to the movable mold plate 120, so that the movable mold plate 120 remains stationary, the movable mold core 150 and the guide block 180 in the movable mold plate 120 remain stationary, then the elastic plate 110 is separated from the movable mold plate 120, the first slide block 140 moves towards the first direction under the driving of the elastic plate 110, the first slide block 140 is separated from the product 500, so as to perform core pulling molding on the surface of the inner portion of the product 500 in the first direction, in this process, the guide slide block 170 connected with the first slide block 140 is in sliding fit with the second slide block 160, so as to drive the second slide block 160 to move towards the second direction under the limiting effect of the guide block 180, to core draw the snap features of the product 500 in the second direction. After core pulling is completed, the spring plate 110 continues to be away from the movable die plate 120, when the distance between the spring plate 110 and the movable die plate 120 is a preset distance, the limiting block 112 abuts against the stopping block 123, at this time, the mold opening enters the second stage, the spring plate 110 drives the movable die plate 120 to move towards the first direction, in the process, the first slider 140 drives the guide slider 170 to continue to move towards the first direction, the movable mold core 150 and the guide block 180 in the movable die plate 120 also move towards the first direction, and the guide block 180 simultaneously drives the second slider 160 to move towards the first direction, so that the mold opening is finally completed.

The embodiment of the utility model provides a mechanism 100 is loosed core to springboard formula, springboard 110 sets up with the laminating of movable mould board 120, elastic component 130 is installed on springboard 110, and be connected with movable mould board 120, movable mould core 150 fixed mounting is in movable mould board 120, and be connected with guide block 180, first slider 140 is connected on springboard 110, and stretch into movable mould board 120, and be connected with guide block 170, guide block 170 and second slider 160 sliding fit, second slider 160 and the cooperation of guide block 180 slider, springboard 110 can keep away from movable mould board 120 under elastic component 130's effect when the die sinking, in order to drive guide block 170 through first slider 140 and follow the first direction motion, guide block 170 can drive second slider 160 through guide block 180 and follow the motion of second direction. Compared with the prior art, the utility model provides a mechanism 100 is loosed core to springboard formula is owing to adopted the springboard 110 of being connected through elastic component 130 and movable mould board 120 and respectively with guide block 170 and guide block 180 complex second slider 160, so can realize the operation of loosing core of long distance product 500 under the circumstances of guaranteeing dynamic balance, improve the stability of loosing core in the motion process, improve product 500 quality to the later maintenance of being convenient for.

Second embodiment

Referring to fig. 13, the present invention provides an injection mold 10 for producing plastic products. The injection mold 10 includes a springboard core-pulling mechanism 100, a fixed mold plate 200, a fixed mold base plate 300, and a movable mold base plate 400. The basic structure and principle of the springboard core-pulling mechanism 100 and the technical effects thereof are the same as those of the first embodiment, and for the sake of brief description, no part of this embodiment is mentioned, and reference may be made to the corresponding contents of the first embodiment.

In this embodiment, the fixed platen 200 and the movable platen 120 are disposed opposite to each other, and the movable platen 120 can be close to or away from the fixed platen 200 to perform a mold closing or opening operation. The fixed mold base plate 300 is connected with the fixed mold plate 200, the movable mold base plate 400 is connected with the spring plate 110, the fixed mold base plate 300 and the movable mold base plate 400 are oppositely arranged at two sides of a press (not shown), and the press can drive the movable mold base plate 400 to be far away from or close to the fixed mold plate 300, so that the spring plate 110 is far away from or close to the fixed mold plate 200, and the mold opening or mold closing of the spring plate type core pulling mechanism 100 is realized.

In this embodiment, the injection mold 10 is a one-mold two-cavity type mold, and has two cavities therein, so that two products 500 can be molded at one time. Accordingly, the number of the springboard core-pulling mechanisms 100 is two, so as to perform core-pulling molding on two products 500. However, the present invention is not limited thereto, and in other embodiments, there may be only one cavity or three cavities in the injection mold 10, and the number of cavities in the injection mold 10 is not particularly limited.

The embodiment of the utility model provides an injection mold 10's beneficial effect the same with the beneficial effect of first embodiment, no longer describe here.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims (10)

1. The elastic plate type core pulling mechanism is characterized by comprising an elastic plate (110), a movable template (120), an elastic piece (130), a first sliding block (140), a movable mold core (150), a second sliding block (160), a guide sliding block (170) and a guide block (180), wherein the elastic plate (110) is attached to the movable template (120), the elastic piece (130) is installed on the elastic plate (110) and connected with the movable template (120), the movable mold core (150) is fixedly installed in the movable template (120) and connected with the guide block (180), the first sliding block (140) is connected to the elastic plate (110) and extends into the movable template (120) and is connected with the guide sliding block (170), the guide sliding block (170) is in sliding fit with the second sliding block (160), and the second sliding block (160) is in sliding fit with the guide block (180), the elastic plate (110) can be far away from the movable die plate (120) under the action of the elastic piece (130) when the die is opened, so that the first sliding block (140) drives the guide sliding block (170) to move along a first direction, the guide sliding block (170) can drive the second sliding block (160) to move along a second direction through the guide block (180), and the first direction is intersected with the second direction.

2. The springboard core-pulling mechanism according to claim 1, wherein the second slider (160) is provided with a first sliding slot (161), the guide slider (170) is slidably disposed in the first sliding slot (161), and the extending direction of the first sliding slot (161) is disposed obliquely with respect to the first direction and obliquely with respect to the second direction.

3. The springboard core pulling mechanism according to claim 2, wherein the first slider (140) is obliquely provided with a mounting surface (141), the mounting surface (141) is in sliding fit with the second slider (160), a mounting groove (142) is formed in the mounting surface (141), the guide slider (170) is fixedly mounted in the mounting groove (142), and the mounting surface (141) is parallel to the extending direction of the first sliding groove (161).

4. The springboard core pulling mechanism according to claim 3, wherein a limiting groove (143) is further formed in the mounting surface (141), a side surface (144) and a bottom surface (145) are adjacently arranged on the limiting groove (143), the guide block (180) extends into the limiting groove (143) and is in sliding fit with the side surface (144), and the guide block (180) can abut against the bottom surface (145).

5. The springboard core-pulling mechanism according to claim 1, wherein the second slider (160) is provided with a second sliding slot (162), the guide block (180) is slidably disposed in the second sliding slot (162), and the extending direction of the second sliding slot (162) is the second direction.

6. The spring plate type core pulling mechanism according to claim 1, wherein the elastic member (130) comprises a fixed seat (131) and a nitrogen spring (132), the fixed seat (131) is fixedly mounted on the spring plate (110) and is connected with the nitrogen spring (132), and one end of the nitrogen spring (132) far away from the fixed seat (131) abuts against the movable die plate (120).

7. The spring plate type core pulling mechanism according to claim 6, wherein a containing groove (121) is formed in one side of the movable mold plate (120) close to the spring plate (110), and the nitrogen spring (132) extends into the containing groove (121) and abuts against the bottom wall of the containing groove (121).

8. The springboard core pulling mechanism according to claim 1, wherein a fixing groove (111) is formed in one side of the springboard (110) close to the movable die plate (120), the first slider (140) is provided with a fixing table (146), and the fixing table (146) is fixedly installed in the fixing groove (111).

9. The spring plate type core pulling mechanism according to claim 1, wherein the spring plate (110) is provided with a limiting block (112), the limiting block (112) is L-shaped, the movable die plate (120) is provided with a guide chute (122), a stop block (123) is arranged on one side of the guide chute (122) close to the spring plate (110), the limiting block (112) is slidably arranged in the guide chute (122), and the limiting block (112) can abut against the stop block (123).

10. An injection mold comprising the springboard core-pulling mechanism of any one of claims 1 to 9.

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