CN209257386U - A kind of ejector device of automobile bumper mold - Google Patents

Abstract

The application discloses an ejection device for an automobile bumper mold, which relates to the field of mold processing, and includes: a top mold shell, the top mold shell is arranged under the automobile bumper; ejection mechanisms, the number of ejection mechanisms is at least six, It is arranged symmetrically in two rows on both sides of the bottom of the top mold shell. The ejection mechanism includes: a column plate, which is provided with a thread inside, and is connected with a screw through the thread, and the bottom end of the screw is connected with a motor , the column plate can be ejected upwards from the top mold shell under the screw drive of the screw rod; a stabilizing mechanism, the stabilizing mechanism is connected and fixed to the ejecting mechanism. In this application, by setting the top mold shell under the automobile bumper, it is convenient for the ejector mechanism to eject the automobile bumper stably; at least six ejection mechanisms arranged symmetrically in two rows simultaneously eject the top mold shell and the automobile bumper, and the stabilizing mechanism is stable. Connect the ejector mechanism so that the ejection direction of the ejector mechanism does not deviate left and right.

Description

A kind of ejector device of automobile bumper mold

technical field

The application relates to the field of mold processing and manufacturing, in particular to an ejector device for an automobile bumper mold.

Background technique

As we all know, injection mold is a kind of mold that is widely used in the current industrial production process. It is mainly composed of fixed mold, movable mold and ejector mechanism. The ejector mechanism is often on the movable mold. Set up the inclined roof mechanism to complete the mold opening. Corresponding molding features should be set on the inclined roof. After the product is formed, the inclined roof will eject the molded product under the push of the injection molding machine to complete the mold opening; the shape of the automobile bumper is large , in the prior art, because a certain part of the automobile bumper is bonded to the mold during ejection, each part of the automobile bumper cannot be ejected at the same time, and the uneven ejection of the automobile bumper will cause damage to the automobile bumper, resulting in a large The deformation or even cracks appear, so a kind of ejection device that can stably eject the bumper of the car is needed.

For example, the Chinese utility model patent whose notification number is CN105773935A discloses a kind of ejector device for automobile bumper mould. At this time, the guide rod is completely located in the guide hole; when the demoulding starts, the top plate will gradually move upward without the sliding base, and the first ejector rod will be ejected obliquely upward in the lower mold assembly. At this time, the product profile of the first inclined top When the first inclined top moves upwards, under the joint action of the guide rod and the guide hole, the second inclined top moves upward and moves away from the first inclined top synchronously. , so that the product is completely disengaged from the first inclined top, and the product is ejected smoothly, and finally the product profile on the second inclined top is separated from the product; the ejector device of the above-mentioned automobile bumper mold passes through the first inclined Set a fulcrum at one corner of the top, and then push out the mold through the second slanted top away from the first slanted top. In the above technical solution, when the bumper is ejected, if the first slanted top is pushed upwards, the ejected part of the bumper will be in contact with the first slanted top. The stress of the unextruded part is quite different, and the automobile bumper at the position that the first slant lifts upwards is also easily damaged.

Utility model content

One of the purposes of the present application is to provide an ejector device for an automobile bumper mould, which aims to solve the problem of unbalanced ejection of the entire automobile bumper in the prior art and damage to the automobile bumper;

In order to achieve the above-mentioned purpose, the application adopts the following technical scheme: a kind of ejector device of automobile bumper mould, comprising: top mold shell, automobile bumper is injection-molded on the top mold shell; Six, arranged symmetrically in two rows on both sides below the top mold shell, and the ejector mechanism is fixed inside the lower mold base. The ejector mechanism includes: a column plate, which is provided with a thread inside the column plate, and is connected with a screw, the column plate can be ejected upwards from the top mold shell under the screw drive of the screw; a stabilizing mechanism, the stabilizing mechanism is connected to the ejecting mechanism;

In the above technical solution, the present application uses the spiral transmission of the screw rod in the ejection mechanism arranged symmetrically in two rows to make the column plate rise and eject the top mold shell, and the automobile bumper is formed on the top mold shell. When the ejector mechanism ejects When the top mold shell is used, the bumper on it is also ejected, so as to realize the separation of the automobile bumper and the lower mold base; there are at least six ejection mechanisms, and they are arranged symmetrically in two rows on the lower two sides of the top mold shell. side, to ensure that when the ejector mechanism ejects the top mold shell and the automobile bumper, all parts of the automobile bumper are ejected at the same time, preventing the automobile bumper from being damaged.

Further, according to the embodiment of the present application, it also includes: a support platform, the support platform is arranged inside the lower mold base, and the ejection mechanism is fixedly arranged on the support platform.

Further, according to the embodiment of the present application, balls are provided in the threads between the screw and the column plate, and the screw can be driven by the friction of the balls to drive up or down on the thread of the column plate; the arrangement of the balls prevents the gap between the screw and the thread. Excessive friction can cause damage.

Further, according to an embodiment of the present application, the stabilizing mechanism further includes tooth blocks, a rotating rod is connected between the tooth blocks, the rotating rod is installed in the bearing tube, and the bearing tube is arranged on the fixing frame.

Furthermore, according to the embodiment of the present application, columns in the column direction are arranged on both sides of the column plate, and the gear blocks cooperate with the columns on both sides of the column plate, and the columns can be driven between the gear blocks; the gear blocks of the stabilizing mechanism are connected The column bar of the ejection mechanism makes the column plate move along the transmission of the tooth block when the column plate is ejected upwards from the top formwork, so that the column plate can only move up and down, and there will be no left-right deviation, preventing the ejection mechanism from being ejected The left and right deviation during the time will have a bad effect on the ejection of the bumper of the car, preventing damage to the bumper of the car.

Further, according to the embodiment of the present application, the ejection mechanism further includes: a first toothed plate; a second toothed plate, the second toothed plate is installed below the first toothed plate, and the first toothed plate and the second toothed plate With the same inclined teeth, the teeth of the first toothed disc and the teeth of the second toothed disc are set in opposite directions; the first toothed disc and the second toothed disc are provided with the same shape of the installation groove, and the screw is installed through the installation groove .

Furthermore, according to the embodiment of the present application, guard plates are provided on the outer sides of the first toothed disc and the second toothed disc, and the guard plates prevent other foreign objects from falling into the first toothed disc and the second toothed disc.

Furthermore, according to the embodiment of the present application, the first chainring is connected with a first tightening member, which can clamp the teeth of the first toothed disk; the second toothed disk is connected with a second tightening member, and the second The tightening part can clamp the teeth of the second toothed disc; the ends of the first tightening part and the second tightening part are respectively connected with a first movable disc and a second movable disc, and the first movable disc and the second movable disc are movably connected together; The teeth of the first toothed disc are clamped by the first tightening part, and the second tightening part is separated from the teeth of the second toothed disc. The screw is fixed in the first toothed disc and the second toothed disc. It can only drive the screw to rotate in one direction, and the screw can only rotate the transmission column plate to eject the top mold shell and the automobile bumper; when the ejection of the automobile bumper is completed, the first compression part is separated from the first toothed plate, and the second compression part Clamp the second toothed plate, at this time, the screw cannot turn up the column plate, and the column plate cannot move upwards, preventing the column plate from going up together with the top formwork shell and the automobile bumper when the worker takes out the top formwork shell and the automobile bumper Cause the inconvenience of taking out the top mold shell and the bumper of the car.

According to the present application, by arranging that the top mold shell is located below the automobile bumper, at least six ejection mechanisms arranged symmetrically in two rows are set to stably eject the top mold shell and the automobile bumper, and the screw and screw drive the column plate through the motor drive. The column plate is pushed out of the top mold shell and the automobile bumper. The setting of the top mold shell has a certain protective effect on the ejection of the automobile bumper. When the six ejector devices simultaneously eject the top mold shell and the automobile bumper, the top mold shell The mold shell and the automobile bumper can be ejected as a whole at the same time, and there will be no sticking of certain parts, and there will be no situation that the various parts of the automobile bumper cannot be ejected at the same time, which solves the problem in the prior art due to the time of ejection. A certain part of the car bumper is glued to the mold so that all parts of the car bumper cannot be ejected at the same time, and the bumper will be damaged due to the uneven ejection of the car bumper, which greatly improves the pass rate of the car bumper ejection ;Setting the stabilizing mechanism includes tooth blocks, the tooth blocks cooperate with the columns arranged on both sides of the column plate, when the column plate moves upward to eject the top formwork and the bumper of the car, the column plate can only follow the columns on both sides of the column plate It moves upward under the rotation of the gear block to prevent the left or right deviation of the column plate when it pushes out of the top formwork and the bumper of the car.

Description of drawings

The application will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the structure schematic diagram of the ejector device of a kind of automobile bumper mold of the present application.

Fig. 2 is a schematic diagram of the internal structure of the ejector device of the automobile bumper mold shown in Fig. 1 .

Fig. 3 is a structural schematic diagram of the ejection mechanism of the present application.

Fig. 4 is a sectional view of the ejection mechanism shown in Fig. 3 .

Fig. 5 is a schematic structural view of the first elastic piece in the ejection mechanism of the present application.

Fig. 6 is a schematic structural view of the first movable disk in the ejection mechanism of the present application.

Fig. 7 is a structural schematic diagram of the stabilization mechanism of the present application.

Fig. 8 is a cross-sectional view of the tooth block and the column of the present application.

Fig. 9 is a schematic view before and after the movement of the ejection mechanism of the present application.

In the attached picture

100. Lower mold seat

200. Car bumper

300, support platform

400, ejector mechanism 401, column plate 402, column bar

403, screw rod 404, ball 405, the first chainring

406, the second chainring 407, the first tightening part 408, the second tightening part

409, first shrapnel 410, second shrapnel 411, guard plate

412, the first movable disk 413, the second movable disk

500, stabilizing mechanism 501, gear block 502, rotating rod

503, bearing tube 504, fixed frame

600. Top mold shell

Detailed ways

In order to clearly and completely describe the purpose, technical solution, and advantages of the utility model, the embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, rather than all embodiments, and are only used to explain the embodiments of the utility model, and are not intended to limit the embodiments of the utility model. Those of ordinary skill in the art All other embodiments obtained under the premise of no creative work belong to the protection scope of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", " The orientation or positional relationship indicated by "bottom", "side", "vertical" and "horizontal" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or It should not be construed as limiting the invention by implying that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation. Furthermore, the terms "a", "first", "second", "third", "fourth", "fifth" and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

For purposes of simplicity and illustration, the principles of the embodiments are mainly described with reference to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. However obvious it is. To those of ordinary skill in the art, the embodiments may in practice not be limited to these specific details. In some instances, well-known methods and structures have not been described in detail to avoid unnecessarily obscuring the embodiments. In addition, all the embodiments can be used in combination with each other.

As shown in Fig. 1, 2, present embodiment discloses a kind of ejection device of automobile bumper mould, comprises top form shell 600, and top form shell 600 is arranged on the inside of lower mold base 100, and top form shell 600 and automobile bumper 200 The lower surface of the top mold shell 600 has the same shape, the top of the top mold shell 600 is an injection-molded automobile bumper 200, and the bottom of the top mold shell 600 is provided with an ejection mechanism 400, and the ejection mechanism 400 is fixed by a stabilizing mechanism 500 provided. The mechanism 500 is arranged on the support platform 300, and the support platform 300 is fixedly arranged on the lower mold base 100; the automobile bumper 200 is injection-molded on the set top mold shell 600, and the automobile bumper 200 is ejected. The automobile bumper 200 is separated from the lower mold base 100, and the top mold shell 600 arranged below the automobile bumper 200 is provided for stable ejection. When the ejector mechanism 400 is ejected, the top mold shell 600 and the automobile bumper The 200 is ejected together, and the car bumper 200 is ejected in this way.

Specifically, as shown in Figures 3 and 4, the ejection mechanism 400 is symmetrically arranged under the top mold shell in two rows, and there are at least six. The ejection mechanism 400 includes a column plate 401, and the column plate 401 The shape where the top contacts the top mold shell 600 is adapted to the bottom shape of the top mold shell 600 in contact, and corresponding chamfers etc. are provided to prevent the ejected top mold shell 600 and the bumper 200 from being damaged during ejection , the column plate 401 is welded below the top formwork shell 600, and the two sides of the column plate 401 are provided with columns 402 equidistant in column direction. There is a ball 404 between the thread of the column plate 401, the teeth of the screw 403 can rotate in the thread of the column plate 401 just through the ball 404, and the ball 404 can reduce the wear of the column plate 401 and the screw rod 403 when meshing and rotating; The helical transmission of the screw rods in the ejection mechanism arranged symmetrically in two rows makes the column plate rise and push out the top mold shell and the automobile bumper, thereby realizing the separation of the automobile bumper and the lower mold seat; there are at least six ejection mechanisms, And it is symmetrically arranged on both sides below the top formwork in two rows, which ensures that when the ejector mechanism ejects the top formwork and the automobile bumper, each part of the automobile bumper is simultaneously ejected, which solves the problem of the prior art due to the ejection of the top formwork. Some parts of the car bumper are glued to the mold during ejection, so that all parts of the car bumper cannot be ejected at the same time, and the car bumper is damaged, but the top mold shell and the car bumper can be stably ejected.

As shown in Figures 5 and 6, the bottom of the screw 403 is in a certain shape, such as triangle, rectangle, pentagon, hexagon, etc. The bottom of the screw 403 is connected with a motor, and the bottom of the screw is fixed on the first toothed disc 405 and In the groove consistent with the shape of the bottom of the screw rod 403 in the second toothed disc 406, the first toothed disc 405 and the second toothed disc 406 are welded together, and the first toothed disc 405 and the second toothed disc 406 have teeth with the same oblique direction. , specifically can be oblique triangle, etc., and the teeth of the first toothed plate 405 and the teeth of the second toothed plate 406 are installed in opposite directions, the first toothed plate 405 is installed on the second toothed plate 406, and the first toothed plate 405 and A guard plate 411 is installed on the outer side of the second toothed plate 406, and a rotatable first tightening member 407 is installed on the left side of the guard plate 411. The first tightening member 407 is arranged close to the first toothed plate 405, and can be clamped to fix the first toothed plate 405 has oblique triangular teeth, and the second constricting member 408 is arranged immediately below the first constricting member 407. The second constricting member 408 is arranged close to the second toothed plate 406, and can be clamped and fixed on the second toothed plate 406 to form an oblique Triangular teeth. At the same time, the first elastic piece 409 and the second elastic piece 410 are respectively arranged on both sides of the guard plate 411. The first elastic piece 409 can be arranged on the side of the first toothed plate 405, and the second elastic piece 410 is arranged on the second toothed plate 406. On one side, the first tightening part 407 is connected with the first movable disc 412, and the second tightening part 408 is connected with the second movable disc 413; The shrapnel 409 moves the first constricting member 407 to lock the teeth of the first toothed disc 405, and the second movable disc 413 moves the second constricting member 408 to disengage from the teeth of the second toothed disc 406. At this time, the motor can only drive the screw 403 Rotating in one direction, the screw 403 can only rotate the transmission column plate 401 to push out the top mold shell 600 and the automobile bumper 200, preventing the column plate 401 from moving downward; The constricting part 407 is separated from the teeth of the first toothed disc, and the second constricting part 408 is moved by the second elastic piece 410 to lock the teeth of the second toothed disc 406. At this time, the screw 403 cannot rotate in the original direction to spin up the column plate 401, Pillar plate 401 also can not move upwards, and the workman just can directly take out top formwork shell 600 and the automobile bumper on it.

As shown in Figures 2 and 7, there are at least six ejection mechanisms 400, and each of the two ejection mechanisms 400 arranged symmetrically is fixed by one stabilizing mechanism 500, and the stabilizing mechanism 500 is fixed on the supporting platform 300 ; As shown in Figures 7 and 8, the stabilizing mechanism 500 includes a tooth block 501, the tooth block 501 cooperates with the columns 402 on both sides of the column plate 401, the tooth block 501 can rotate and fit the column bar 402, between the tooth blocks 501 Connected with a rotating rod 502, the tooth block 501 can rotate under the connection of the rotating rod 502. The rotating rod 502 is installed in the bearing tube 503, and the bearing tube 503 is welded on the fixing frame 504. The fixing frame 504 is in the shape of "A", and the fixing frame 504 is fixed on the support table 300 by screws, and the ejector mechanism 400 is fixed by the stabilizing mechanism 500 to prevent the ejector mechanism 400 from shifting left and right when ejecting the top mold shell 600, so that the stability of the column plate 401 when it moves up and down can be realized.

As shown in Figures 1-9, the embodiment of the present application also discloses a method for ejecting an ejecting device of an automobile bumper mold, comprising the following steps:

a) Start the motor, the motor drives at least six screw rods 403 in the ejection mechanism 400 to rotate in one direction, so that the screw rods 403 spin up the column plate 401 through the internal threads of the column plate 401, and the column plate 401 rises and ejects the top formwork shell 600 to Set the station, the automobile bumper 200 is ejected with the top mold shell 600;

b) Manually remove the top mold shell 600 and the automobile bumper 200 thereon.

Specifically, the following steps are also included: c) when the ejector mechanism 400 is ejecting the top mold shell 600 and the bumper 200, the teeth of the first toothed plate 405 are blocked by the first tightening member 407, and the second tightening member 408 The motor can only drive the screw 403 to rotate in one direction, and the screw 403 can only rotate the transmission column plate 401 to push out the top formwork shell 600 and the automobile bumper 200;

Specifically, the following steps are also included: d) before performing step b), when the ejection is completed, the first tightening member 407 breaks away from the teeth of the first toothed disc, and the second tightening member 408 clamps the teeth of the second toothed disc 406 , at this time, the screw rod 403 cannot rotate along the original direction to spin up the column plate 401, and the column plate 401 cannot move upwards, so as to prevent the column plate from going upward together with the top formwork shell and the automobile bumper when the worker takes out the top formwork shell and the automobile bumper Difficulty in taking out top formwork shells and car bumpers.

Although the specific embodiment of the utility model has been described above, so that those skilled in the art can understand the utility model, the utility model is not limited to the scope of the specific embodiment, for those of ordinary skill in the art , as long as the various changes are within the spirit and scope of the utility model defined and determined by the appended claims, all utility model creations utilizing the concepts of the utility model are included in the protection list.

Claims (8)

1. A kind of ejector of automobile bumper mould, is characterized in that, comprises: A top mold shell (600), the automobile bumper (200) is injection molded on the top mold shell (600); A ejector mechanism (400), the ejector mechanism (400) is set to at least six, and is symmetrically arranged on both sides below the top mold shell (600) in two rows, and the ejector mechanism (400) Fixedly arranged on the inside of the lower mold base (100), the ejection mechanism (400) includes: A column plate (401), the interior of the column plate (401) is provided with a screw thread, and a screw rod (403) is connected through the thread, the bottom end of the screw rod (403) is connected with a motor, and the column plate (401) is connected to the Under the screw drive of the screw (403), the top mold shell (600) can be ejected upward; A stabilizing mechanism (500), the stabilizing mechanism (500) is connected with the ejecting mechanism (400). 2. the ejector device of a kind of automobile bumper mold according to claim 1, is characterized in that, also comprises: A support platform (300), the support platform (300) is arranged inside the lower mold base (100), and the ejection mechanism (400) is fixedly arranged on the support platform (300). 3. The ejector device of a kind of automobile bumper mold according to claim 1, wherein, a ball (404) is arranged in the screw thread between the screw (403) and the column plate (401), and the screw (403) can be driven up or down on the screw thread of the column plate (401) through the friction transmission of the ball (404). 4. The ejector device of a kind of automobile bumper mold according to claim 1, wherein, said stabilizing mechanism (500) comprises and also comprises tooth block (501), and is connected with rotation between said tooth block (501). Rod (502), the rotating rod (502) is installed in the bearing tube (503), the bearing tube (503) is arranged on the fixed frame (504), and the fixed frame (504) is fixedly arranged on the support platform ( 300) on. 5. The ejector device of a kind of automobile bumper mold according to claim 4, wherein column bars (402) in the column direction are arranged on both sides of the column plate (401), and the tooth blocks (501) and The columns (402) on both sides of the column plate (401) cooperate, and the columns (402) can be driven between the tooth blocks (501). 6. The ejector device of a kind of automobile bumper mold according to claim 1, wherein, said ejector mechanism (400) also comprises: a first chainring (405); A second toothed plate (406), the second toothed plate (406) is fixedly installed under the first toothed plate (405), and the first toothed plate (405) and the second toothed plate (406) have the same oblique teeth, the teeth of the first toothed disc (405) and the teeth of the second toothed disc (406) are set in opposite directions; The first toothed disc (405) and the second toothed disc (406) are provided with installation grooves of the same shape, and the screw rod (403) is fixedly installed through the installation grooves. 7. The ejector device for an automobile bumper mold according to claim 6, wherein guard plates (411) are provided outside the first toothed disc (405) and the second toothed disc (406). 8. The ejector device of an automobile bumper mold according to claim 6, wherein, the first toothed disc (405) is connected with a first tightening member (407), and the first tightening member (407) ) can clamp the teeth of the first toothed disc (405); the second toothed disc (406) is connected with a second tightening part (408), and the second tightening part (408) can clamp the described teeth of the second chainring (406); The ends of the first constricting member (407) and the second constricting member (408) are respectively connected with a first movable disc (412) and a second movable disc (413), and the first movable disc (412) and the The second movable disc (413) is movably connected together.