Injection mold ejection device

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold ejection device which comprises a base, a first fixing hole is formed in the outer side of the base, a fixing pin is slidably connected to the interior of the first fixing hole, a spring is fixedly connected to the interior of the base, and a connecting plate is fixedly connected to the top end of the spring. The base is provided with a first fixing hole, a fixing pin, a spring, a connecting plate, a fixing block, a connecting block, a first limiting groove, a second limiting groove, a limiting bottom plate, a silicon rubber case, a first fixing shell, a clamping block, a clamping pin, a second fixing shell, a second fixing hole and the like, and a fixing block located at the top end is fixedly connected to the interior of the base. When demolding is needed, the first fixing shell and the second fixing shell are pulled outwards to be separated, the clamping block and the clamping pin are separated under the action of pulling force, and the first fixing shell and the second fixing shell are detached to be separated from the rubber sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold ejection device. Background Art

[0002] When using a mold to manufacture a product, the molten material is injected into the cavity formed by the movable mold and the fixed mold. The product is formed after the molten material is cooled. After the plastic material is cooled and solidified, the mold is opened to eject the solidified plastic product to obtain a molded product. Since the injection molding processing method has the characteristics of low molding cost, short molding cycle, simple molding process and easy molding of plastic products with complex shapes, it is widely used in the application field of plastic products.

[0003] The existing injection mold has a fixed size, the model and the mold fit tightly, demoulding is difficult, and the model needs to be pulled out manually little by little, which is troublesome; the existing injection mold ejection device needs to manually apply the release agent, and the manual application is inefficient and uneven. Therefore, an injection mold ejection device is proposed to address the above problems. Utility Model Content

[0004] The utility model aims to provide an injection mold ejection device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] 1. The ejection device of an injection mold, comprising a base, a first fixing hole is provided on the outer side of the base, a fixing pin is slidably connected inside the first fixing hole, a spring is fixedly connected inside the base, a connecting plate is fixedly connected to the top of the spring, a fixing block located at the top is fixedly connected inside the base, a connecting block is fixedly connected to one side of the fixing block, a first limiting groove is provided inside the connecting block, a second limiting groove located above the first limiting groove is provided inside the connecting block, a limiting bottom plate is slidably connected inside the first limiting groove, a silicone sleeve is fixedly connected to the top of the connecting block, a first fixing shell is provided on the outer side of the silicone sleeve, a connecting pipe is fixedly connected to the top of the first fixing shell, an upper cover is spirally connected to the outer side of the connecting pipe, a locking pin is fixedly connected to one end of the first fixing shell, a second fixing shell located on the left side of the first fixing shell is provided on the outer side of the silicone sleeve, a locking block is fixedly connected to one end of the second fixing shell, and a second fixing hole is provided on one side of the connecting plate.

[0007] Preferably, a third limiting groove is provided inside the upper cover, a water outlet located below the third limiting groove is provided at the bottom end of the upper cover, and a water inlet is provided at the top end of the upper cover.

[0008] Preferably, a locking pin is locked and connected on the inner side of the locking block, and the first fixed shell and the second fixed shell are locked and connected by the locking pin and the locking block.

[0009] Preferably, a fixing pin is slidably connected inside the second fixing hole.

[0010] Preferably, there are several water outlets, which are evenly arranged on the surface of the upper cover.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, by setting the base, the first fixing hole, the fixing pin, the spring, the connecting plate, the fixing block, the connecting block, the first limiting groove, the second limiting groove, the limiting bottom plate, the silicone sleeve, the first fixing shell, the locking block, the locking pin, the second fixing shell and the second fixing hole and other components, when demoulding is required, the first fixing shell and the second fixing shell are pulled outward to separate, and the locking block and the locking pin are separated under the action of the pulling force, and the first fixing shell and the second fixing shell are disassembled and separated from the rubber sleeve, and then the rubber sleeve is torn open, the model is held and pressed downward, and the limiting bottom plate is rotated by the downward pressure to make the limiting bottom plate rotate in the first limiting groove, so that the limiting bottom plate is rotated to the position overlapping with the second limiting groove, and then the fixing pin is pulled out, and the limiting bottom plate is bounced up under the action of the spring and the connecting plate, and the model is ejected from the silicone sleeve through the limiting bottom plate, and manual demoulding is not required, thereby solving the problem that the mold of the existing injection mold is a fixed size, the model and the mold are tightly fitted, demoulding is difficult, and the model needs to be manually pulled out little by little, which is more troublesome;

[0013] 2. In the utility model, by arranging components such as the upper cover, the connecting pipe, the first fixed shell, the second fixed shell, the third limiting groove, the water injection port, the water outlet and the silicone sleeve, the pipeline of the mold release agent is inserted from the water injection port, the mold release agent will enter the third limiting groove, and then be evenly sprayed out from multiple water outlets and sprayed inside the silicone sleeve. The evenly sprayed mold release agent can form a protective film inside the silicone sleeve to prevent the model from sticking when demolding, thereby solving the problem that the existing injection mold ejection device needs to manually apply the mold release agent, and the manual application is inefficient and uneven. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model in an open state;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model in an open state;

[0017] Figure 4 This is a schematic diagram of the top view of the base structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the base of the utility model in an open state when viewed from above;

[0019] Figure 6 It is a schematic diagram of the cross-sectional structure of the base in a top view of the present utility model.

[0020] In the figure: 1. base; 2. first fixing hole; 3. fixing pin; 4. spring; 5. connecting plate; 6. fixing block; 7. connecting block; 8. first limiting groove; 9. second limiting groove; 10. limiting bottom plate; 11. silicone sleeve; 12. first fixing shell; 13. connecting pipe; 14. upper cover; 15. third limiting groove; 16. water inlet; 17. water outlet; 18. locking block; 19. locking pin; 20. second fixing shell; 21. second fixing hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the utility model, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0023] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the practical protection scope of this new model.

[0024] See also Figure 1-6 , the utility model provides a technical solution:

[0025] A plastic injection mold ejection device comprises a base 1, a first fixing hole 2 is provided on the outer side of the base 1, a fixing pin 3 is slidably connected inside the first fixing hole 2, a spring 4 is fixedly connected inside the base 1, a connecting plate 5 is fixedly connected to the top of the spring 4, a fixing block 6 is fixedly connected to the inside of the base 1, a connecting block 7 is fixedly connected to one side of the fixing block 6, a first limiting groove 8 is provided inside the connecting block 7, a second limiting groove 9 located above the first limiting groove 8 is provided inside the connecting block 7, a limiting bottom plate 10 is slidably connected inside the first limiting groove 8, a silicone sleeve 11 is fixedly connected to the top of the connecting block 7, a first fixing shell 12 is provided on the outer side of the silicone sleeve 11, a connecting pipe 13 is fixedly connected to the top of the first fixing shell 12, an upper cover 14 is spirally connected to the outer side of the connecting pipe 13, a clamping pin 19 is fixedly connected to one end of the first fixing shell 12, a second fixing shell 20 located on the left side of the first fixing shell 12 is provided on the outer side of the silicone sleeve 11, a clamping block 18 is fixedly connected to one end of the second fixing shell 20, and a second fixing hole 21 is provided on one side of the connecting plate 5.

[0026] A third limiting groove 15 is provided inside the upper cover 14, a water outlet 17 located below the third limiting groove 15 is provided at the bottom end of the upper cover 14, a water inlet 16 is provided at the top end of the upper cover 14, a locking pin 19 is engaged with the inner side of the locking block 18, the first fixed shell 12 and the second fixed shell 20 are engaged with the locking pin 19 and the locking block 18, a fixing pin 3 is slidably connected inside the second fixing hole 21, and there are several water outlets 17, which are evenly arranged on the surface of the upper cover 14.

[0027] Working process: When the injection mold ejection device is needed, first align the limiting bottom plate 10 with the second limiting groove 9 and snap it into place. After snapping into place, rotate the limiting bottom plate 10 to enter the first limiting groove 8 to prevent the limiting bottom plate 10 from falling off and seal the base 1. While fixing the limiting bottom plate 10, the limiting bottom plate 10 will push the connecting plate 5 downward, compressing the spring 4 through the connecting plate 5. At this time, the second fixing hole 21 on the connecting plate 5 will overlap with the first fixing hole 2, and then insert the fixing pin 3 to connect The connecting plate 5 and the base 1 are fixed together to prevent the spring 4 from bouncing up. Next, the first fixed shell 12 and the second fixed shell 20 are clamped on the outside of the silicone sleeve 11 for plasticity. After being clamped, they are spirally connected together through the connecting pipe 13 and the upper cover 14 to realize the connection between the first fixed shell 12 and the second fixed shell 20 and the upper cover 14. Then, the pipeline of the demoulding agent is inserted from the water injection port 16, and the demoulding agent will enter the third limiting groove 15, and then be evenly sprayed out from the multiple water outlets 17, sprayed inside the silicone sleeve 11, and evenly sprayed. The sprayed release agent can form a protective film inside the silicone sleeve 11 to prevent the model from sticking when demolding. After the release agent is formed, the pipeline of the model raw material is inserted from the water injection port 16 into the third limiting groove 15, and finally water is evenly sprayed into the inside of the silicone sleeve 11 from the water outlet 17. After the model is completely cooled and formed, the first fixed shell 12 and the second fixed shell 20 are pulled outward to separate. Under the action of the pulling force, the locking block 18 and the locking pin 19 are separated, and the first fixed shell 12 and the second fixed shell 20 are disassembled from the silicone sleeve 1 1, then tear off the silicone sleeve 11, hold the model and press downward, use the downward pressure to rotate the limiting bottom plate 10, so that the limiting bottom plate 10 rotates in the first limiting groove 8, and the limiting bottom plate 10 is turned to the position overlapping with the second limiting groove 9, then pull out the fixing pin 3, and the limiting bottom plate 10 is bounced up under the action of the spring 4 and the connecting plate 5, and the limiting bottom plate 10 pops up from the second limiting groove 9, and the model is popped up from the silicone sleeve 11 through the limiting bottom plate 10, without manual demoulding, and it can be easily demoulded after the above steps.

[0028] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold ejection device, comprising a base (1), characterized in that: The base (1) is provided with a first fixing hole (2) on the outside, a fixing pin (3) is slidably connected inside the first fixing hole (2), a spring (4) is fixedly connected inside the base (1), a connecting plate (5) is fixedly connected to the top of the spring (4), a fixing block (6) located at the top is fixedly connected inside the base (1), a connecting block (7) is fixedly connected to one side of the fixing block (6), a first limiting groove (8) is provided inside the connecting block (7), a second limiting groove (9) located above the first limiting groove (8) is provided inside the connecting block (7), and the first limiting groove (8) is slidably connected to the limiting bottom plate ( 10), a silicone sleeve (11) is fixedly connected to the top of the connecting block (7), a first fixing shell (12) is provided on the outside of the silicone sleeve (11), a connecting tube (13) is fixedly connected to the top of the first fixing shell (12), an upper cover (14) is spirally connected to the outside of the connecting tube (13), a locking pin (19) is fixedly connected to one end of the first fixing shell (12), a second fixing shell (20) is provided on the outside of the silicone sleeve (11) and is located on the left side of the first fixing shell (12), a locking block (18) is fixedly connected to one end of the second fixing shell (20), and a second fixing hole (21) is provided on one side of the connecting plate (5).

2. The injection mold ejection device according to claim 1, characterized in that: A third limiting groove (15) is provided inside the upper cover (14), a water outlet (17) located below the third limiting groove (15) is provided at the bottom end of the upper cover (14), and a water injection port (16) is provided at the top end of the upper cover (14).

3. The injection mold ejection device according to claim 1, characterized in that: The inner side of the locking block (18) is locked with a locking pin (19), and the first fixed shell (12) and the second fixed shell (20) are locked with each other by the locking pin (19) and the locking block (18).

4. The injection mold ejection device according to claim 1, characterized in that: A fixing pin (3) is slidably connected inside the second fixing hole (21).

5. The injection mold ejection device according to claim 2, characterized in that: The water outlets (17) are multiple in number and are evenly arranged on the surface of the upper cover (14).

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