CN210389983U

CN210389983U - Upper and lower matched lampshade mould with divergent ejector rod forming side buckle

Info

Publication number: CN210389983U
Application number: CN201821871829.9U
Authority: CN
Inventors: 周正华; 廖威; 黄健慧; 陈文彪
Original assignee: Taizhou Huangyan Wuxing Bicycle Industry Co ltd
Current assignee: Taizhou Huangyan Wuxing Bicycle Industry Co ltd
Priority date: 2018-11-14
Filing date: 2018-11-14
Publication date: 2020-04-24
Anticipated expiration: 2028-11-14

Abstract

The utility model belongs to lamp shade mould field relates to an upper and lower supporting lamp shade mould with form side knot of formula ejector pin is dispersed. The technical problem that a side wall feature forming mechanism in the prior art is complex in structure and large in size is solved. The die comprises a fixed die plate and a movable die plate, wherein a cavity is arranged between the fixed die plate and the movable die plate, at least one die core is arranged on the movable die plate, a plurality of ejector rods which are arranged in a radiating mode are distributed around each die core respectively, the ejector rods are connected to the movable die plate in a sliding mode, and a side buckle forming cavity is arranged on one side, close to the die core, of each ejector rod. Compared with the prior art, the utility model has the advantages of the ejector pin has the function ejecting and shaping lateral wall back-off concurrently, reduces the side and looses core the setting, reduces mould manufacturing cost.

Description

Upper and lower matched lampshade mould with divergent ejector rod forming side buckle

Technical Field

The utility model belongs to the technical field of the lamp shade mould, especially, relate to an upper and lower supporting lamp shade mould with form side knot of formula ejector pin is dispersed.

Background

The lamp shade adopts injection molding process to accomplish production usually, and the lamp shade generally need with lamp stand cooperation practicality, and common connection structure is the back-off, is provided with the back-off of being connected with the lamp stand promptly at the lamp shade lateral wall. In the prior art, a side core pulling mechanism is generally used to form the lamp cover. For example, the chinese patent document discloses an automobile lamp cover mold [ patent No. CN201420776160.0], which comprises mold legs, an upper mold frame, a lower mold frame, an upper mold core, a lower mold core, an ejection mechanism, a side opening mechanism, the side opening mechanisms are symmetrically arranged at two sides of the upper die frame and comprise sliding blocks, sliding block seats, pressing strips, top shafts and supporting rods, the slide block seats are arranged on the side surface between the upper die frame and the lower die frame and are symmetrically provided with two groups, the slide blocks are matched and fixedly connected with the slide block seats, the slide block is arranged in the upper mold core and the lower mold core, the inner side of the slide block is provided with a cavity surface, the upper die frame is provided with a support rod guide groove, the die foot is provided with a support sliding table corresponding to the support rod, two ends of the pressing bar are respectively and fixedly connected with the sliding block seat, and the top shaft vertically penetrates through the pressing bar to be connected with the supporting rod in a jacking mode.

Above-mentioned scheme can solve lamp shade lateral wall back-off fashioned function basically, but the side mechanism of loosing core is complicated, occupies the mould space, is difficult to set up a plurality of backs and satisfies around the piece design requirement of moulding that distributes, especially multi-cavity mould.

Disclosure of Invention

The utility model aims at the above-mentioned problem, provide an upper and lower supporting lamp shade mould with formula ejector pin takes shape side and detains.

In order to achieve the above purpose, the utility model adopts the following technical proposal: the upper and lower matched lampshade mould with the divergent ejector rod forming side buckles comprises a fixed mould plate and a movable mould plate, wherein a cavity is arranged between the fixed mould plate and the movable mould plate, at least one mould core is arranged on the movable mould plate, a plurality of divergent ejector rods are distributed around each mould core respectively, the ejector rods are connected to the movable mould plate in a sliding mode, and a side buckle forming cavity is arranged on one side, close to the mould core, of each ejector rod. Replace side mechanism of loosing core with the ejector pin, simple structure occupies smallly, can distribute around the lamp shade becomes the die cavity, satisfies on the moulding piece around the formula back-off and distributes the designing requirement, and can realize the design of mould multicavity, guarantees every becomes die cavity and all can distribute lateral wall back-off shaping characteristic all around.

In the upper and lower matched lampshade mould with the divergent mandril forming side buckles, the movable mould plate is provided with mandril grooves corresponding to the mandrils in the direction, the mandrils can be connected in the mandril grooves in a sliding way, and the mandrils are divergently distributed around the corresponding mould cores.

In the upper and lower matched lampshade mould with the divergent ejector rod forming side buckles, the ejector rod grooves are arranged in a diffused mode from the bottom to the top in the direction away from the corresponding mould core, and the ejector rods move towards the outer side of the mould core along the ejector rod grooves when being jacked up.

In the upper and lower matched lampshade molds with the divergent ejector rod forming side buckles, one end of the ejector rod, which is close to the mold core, is provided with the ejector part, the ejector part is provided with the ejector forming surface and the side wall forming surface, and the side buckle forming cavity is arranged on the side wall forming surface.

In the upper and lower matched lampshade mould with the divergent ejector rod forming side buckles, one side of the movable mould plate, which is close to the fixed mould plate, is provided with a plurality of arc-shaped runners, the arc-shaped runners are arranged on the parting surface of the movable mould plate, the arc-shaped runners extend to the ejector rod, the ejector rod is provided with a sprue, and the sprue is communicated with the side buckle forming cavity.

In the upper and lower matched lampshade mould with the divergent ejector rod forming side buckles, one side of the movable mould plate, which is far away from the fixed mould plate, is provided with the ejector plate and the mould frame, the mould frame is fixedly connected with the movable mould plate, and the ejector plate can be interactively connected with the mould frame.

In the upper and lower matched lampshade molds with the divergent ejector rod forming side buckles, the ejector plate is provided with the connecting groove, and the ejector rod is connected in the connecting groove in a sliding manner.

In the upper and lower matched lampshade molds with the divergent ejector rod forming side buckles, one end of the ejector rod close to the ejector plate is provided with a T-shaped connector, the section of the connecting groove is T-shaped, and the T-shaped connector can be connected in the connecting groove in a sliding manner.

Compared with the prior art, the utility model has the advantages of:

1. replace side mechanism of loosing core with the ejector pin, simple structure occupies smallly, can distribute around the lamp shade becomes the die cavity, satisfies on the moulding piece around the formula back-off and distributes the designing requirement, and can realize the design of mould multicavity, guarantees every becomes die cavity and all can distribute lateral wall back-off shaping characteristic all around.

2. The ejector rods are arranged at the bottom of the lampshade forming cavity and are circumferentially distributed at the bottom of the lampshade forming cavity, the ejection force is uniform, and the lampshade is prevented from being deformed due to unbalanced ejection force after being formed.

3. The ejector pin has the function of ejecting and shaping lateral wall back-off concurrently, reduces the side and looses the core setting, reduces mould manufacturing cost.

4. The top of the ejector rod is provided with a sprue, so that molten plastic enters the cavity from the ejector rod part, the sprue is formed at the top of the back-off part, and the connection performance of the back-off part is enhanced.

Drawings

Fig. 1 is a schematic structural diagram provided by the present invention.

Fig. 2 is a cross-sectional view provided by the present invention.

Fig. 3 is a cross-sectional view of another angle provided by the present invention.

Fig. 4 is another angular cross-sectional view provided by the present invention.

Fig. 5 is the utility model provides a moving die plate direction die joint structure sketch map.

In the figure, a fixed die plate 1, a movable die plate 2, a side buckle cavity 3, a die core 4, an ejector rod 5, an ejector rod groove 6, an ejector part 7, an ejector shaping surface 8, a side wall shaping surface 9, an arc-shaped runner 10, a pouring gate 11, an ejector plate 12, a die carrier 13, a connecting groove 14, a T-shaped connector 15 and a die cavity 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-2, the upper and lower matched lampshade mould with the divergent mandril forming side buckles comprises a fixed mould plate 1 and a movable mould plate 2, a cavity 16 is arranged between the fixed mould plate 1 and the movable mould plate 2, at least one mould core 4 is arranged on the movable mould plate 2, a plurality of divergent mandrils 5 are respectively distributed around each mould core 4, the mandrils 5 are slidably connected on the movable mould plate 2, and a side buckle forming cavity 3 is arranged on one side of each mandrill 5 close to the mould core 4. After the molten plastic enters the cavity 16 and is cooled and formed, the movable die plate 2 moves away from the fixed die plate 1, and the die is opened. The ejector rod 5 is ejected out to eject the molded lampshade plastic part, and meanwhile, the ejector rod 5 moves towards the direction far away from the lampshade plastic part, so that the side wall back-off molding characteristic of the lampshade is separated from the side buckle molding cavity 3 of the ejector rod 5.

Replace side mechanism of loosing core with the ejector pin, simple structure occupies smallly, can distribute around the lamp shade becomes the die cavity, satisfies on the moulding piece around the formula back-off and distributes the designing requirement, and can realize the design of mould multicavity, guarantees every becomes die cavity and all can distribute lateral wall back-off shaping characteristic all around.

Specifically, the movable die plate 2 is provided with ejector rod grooves 6 corresponding to the ejector rods 5, the ejector rods 5 are slidably connected in the ejector rod grooves 6, and the ejector rod grooves 6 are distributed around the corresponding die cores in a divergent manner. So as to meet the design requirement of the lamp shade plastic part on the peripheral distribution side wall reverse buckles.

Further, the ejector rod groove 6 is arranged in a manner of being diffused from the bottom to the top in the direction away from the corresponding mold core 4, and the ejector rod 5 moves towards the outer side of the mold core 4 along the ejector rod groove 6 when being jacked up. Guarantee ejector pin 5 ejecting messenger, slide along ejector pin groove 6 to in the slip process, the side on the ejector pin 5 is buckled into the mould chamber 3 and is removed to the direction of keeping away from the lamp shade side and detaining, ensures that the lamp shade moulds the piece and takes place the separation with the side when ejecting, and the smooth drawing of patterns does not take place the scraping with the side when the drawing of patterns and detains the mould chamber, damages lateral wall back-off characteristic.

Furthermore, a top pushing part 7 is arranged at one end of the ejector rod 5 close to the mold core 4, the top pushing part 7 is provided with a top pushing forming surface 8 and a side wall forming surface 9, and the side buckling forming cavity 3 is arranged on the side wall forming surface 9. When the ejector rod pushes the top 5 out, the ejector forming surface 8 pushes the bottom of the lampshade plastic part, and ejection traces are prevented from appearing on the lamp surface of the lampshade plastic part. Meanwhile, the ejection forming surface 8 is provided with a forming surface and forms a plastic part forming cavity together with the cavity, so that the ejection area is increased, and the ejection traces are favorably reduced.

One side of the movable template 2 close to the fixed template 1 is provided with a plurality of arc-shaped runners 10, the arc-shaped runners 10 are arranged on a parting surface of the movable template 2, the arc-shaped runners 10 extend to the ejector rods 5, the ejector rods 5 are provided with the pouring gates 11, feeding is performed through the pouring gates 11 simultaneously, the defect that a lamp shade plastic part is short of materials due to the limitation of the fluidity of a melting blocking material per se is avoided, and the defective rate is reduced. Preferably, a cold material well 17 is arranged in the middle of the arc runner 10, so that the temperature of the molten plastic is prevented from being reduced after passing through the runner, and when the molten plastic reaches the lamp surface forming cavity, a plurality of molten plastic layers are converged to form a weld mark on the lamp surface.

Further, the gate 11 is communicated with the side button forming cavity 3. Preferably, the gate 11 is a flat gate, after the lamp shade plastic part is cooled and ejected, the lamp shade plastic part is separated from the runner waste, and gate traces are left on the side wall reverse buckle, so that the gate traces are prevented from being positioned on the visible surface of the assembled lamp shade plastic part to influence the light transmission and the attractiveness.

Preferably, a top pushing plate 12 and a mold frame 13 are arranged on one side, away from the fixed mold plate 1, of the movable mold plate 2, the mold frame 13 is fixedly connected to the movable mold plate 2, and the top pushing plate 12 can be interactively connected to the mold frame 13. After the mold is opened, the ejector plate 12 is driven by the corresponding driver to move towards the direction close to the movable mold plate 2, the ejector rod 5 is pushed to eject towards the direction close to the fixed mold plate 1, the cutting chips of the ejector rod 5 can be connected in the movable mold plate 2 in a sliding manner, and one end of the ejector rod 5 close to the ejector plate 12 slides on the ejector plate 12.

Further, the ejector plate 12 is provided with a connecting groove 14, and the ejector rod 5 is slidably connected in the connecting groove 14. The ejector rod 5 is prevented from being reduced in contact limiting area with the ejector rod groove 6 in the ejection process, and the lampshade is prevented from being scratched and damaged due to the fact that the ejector track changes and the lampshade is molded with the lampshade under the influence of external force such as gravity after ejection. Meanwhile, the friction force between the ejector rods 5 and the ejector rod grooves 6 is reduced, and the service life of the movable template 2 is prolonged. Preferably, the ejector rod 5 has a rectangular cross section to prevent the ejector rod 5 from rotating during ejection or resetting.

Furthermore, one end of the top rod 5 close to the top pushing plate 12 is provided with a T-shaped connector 15, the cross section of the connecting groove 14 is T-shaped, and the T-shaped connector 15 can be slidably connected in the connecting groove 14. The T-shaped connector ensures that the ejector rod 5 and the ejector plate 12 are not separated in the ejection process, the ejection speed of the anti-thrust ejector plate 12 is too high, and the ejector rod 5 is pushed out of the movable template 2 under the action of inertia. Meanwhile, the ejector plate 12 is reset, and the ejector rod 5 is pulled to reset. In the conventional process, when the ejector rods 5 are reset, the movable die plate 2 and the fixed die plate 1 are closed, the fixed die plate 1 pushes the ejector rods 5 back into the movable die plate 2, and the side wall forming surfaces on the ejector rods 5 are difficult to avoid being in frictional contact with the fixed die plate 1 to abrade the ejector rods 5. In the embodiment, the ejector rod is pulled back and reset by the ejector plate 12, so that the ejector rod 5 is prevented from being in frictional contact with the fixed die plate 1, and the service life of the ejector rod is prolonged.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the fixed mold plate 1, the movable mold plate 2, the cavity 16, the mold core 4, the ejector pins 5, the ejector pin grooves 6, the ejector heads 7, the ejector forming surfaces 8, the side wall forming surfaces 9, the arc runners 10, the gates 11, the ejector plates 12, the mold frame 13, the connecting grooves 14, and the T-shaped connectors 15 are more used herein. Etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The upper and lower matched lampshade mould with the divergent ejector rod forming side buckles comprises a fixed mould plate (1) and a movable mould plate (2), and is characterized in that a cavity (16) is formed between the fixed mould plate (1) and the movable mould plate (2), at least one mould core (4) is arranged on the movable mould plate (2), a plurality of ejector rods (5) which are divergently arranged are distributed around each mould core (4), the ejector rods (5) are slidably connected to the movable mould plate (2), and a side buckle forming cavity (3) is arranged on one side, close to the mould core (4), of each ejector rod (5).

2. The upper and lower matched lampshade moulds with divergent mandril forming side buckles according to claim 1, characterized in that the movable mould plate (2) is provided with mandril grooves (6) corresponding to the mandril (5), the mandril (5) can be connected in the mandril grooves (6) in a sliding way, and the mandril grooves (6) are divergently distributed around the corresponding mould cores.

3. The upper and lower matched lampshade molds with divergent mandril forming side buckles according to claim 2, characterized in that the mandril grooves (6) are arranged in a manner of being diffused from bottom to top in the direction away from the corresponding mold cores (4), and the mandrils (5) move along the mandril grooves (6) to the outer sides of the mold cores (4) when being jacked up.

4. The upper and lower matched lampshade moulds with divergent mandril-formed side buckles as in claim 3, characterized in that the end of the mandril (5) close to the mould core (4) is provided with a top-pushing part (7), the top-pushing part (7) is provided with a top-pushing forming surface (8) and a side wall forming surface (9), and the side buckle forming cavity (3) is arranged on the side wall forming surface (9).

5. The upper and lower matched lampshade molds with the divergent ejector rod forming side buckles according to claim 4, characterized in that one side of the movable mold plate (2) close to the fixed mold plate (1) is provided with a plurality of arc-shaped runners (10), the arc-shaped runners (10) are arranged on the parting surface of the movable mold plate (2), the arc-shaped runners (10) extend to the ejector rods (5), the ejector rods (5) are provided with gates (11), and the gates (11) are communicated with the side buckle forming cavities (3).

6. The upper and lower matched lampshade molds with the divergent ejector rod forming side buckles according to claim 1, characterized in that a push top plate (12) and a mold frame (13) are arranged on one side of the movable mold plate (2) far away from the fixed mold plate (1), the mold frame (13) is fixedly connected on the movable mold plate (2), and the push top plate (12) can be interactively connected on the mold frame (13).

7. The upper and lower matched lampshade moulds with divergent mandril forming side buckles as claimed in claim 6, wherein the ejector plate (12) is provided with a connecting groove (14), and the mandril (5) can be slidably connected in the connecting groove (14).

8. The upper and lower matched lampshade molds with divergent mandril forming side buckles according to claim 7, characterized in that one end of the mandril (5) close to the top pushing plate (12) is provided with a T-shaped connector (15), the section of the connecting groove (14) is T-shaped, and the T-shaped connector (15) can be slidably connected in the connecting groove (14).