CN218256550U - Automatic disconnected mouthful structure of gluing is advanced to injection molding level - Google Patents

Abstract

The utility model discloses an injection molding is flat advances gluey automatic disconnected gum mouth structure for injection molding carries out ejecting and separation to injection moulding product and mouth of a river material on the injection mold, and injection molding product and mouth of a river material all are located between terrace die and the die, and the die is located the movable mould board, and injection molding product is ejecting through the product thimble that runs through the movable mould board, and the product thimble is fixed between second thimble board and third thimble board, including the mouth of a river thimble, mouth of a river thimble run through the movable mould board and install on first thimble board, be equipped with the release between first thimble board and the movable mould board, second thimble board and third thimble board all are located between first thimble board and the movable mould bedplate, support through the spacer between first thimble board and the movable mould bedplate, and the interval between second thimble board and the first thimble board is the stroke of the ejection injection molding product drawing of patterns of product thimble. Three ejector pin boards and two ejector pins are designed in the device, the injection molding product and the nozzle material are ejected, separated and demoulded in sequence, and the secondary ejection mechanism is ingenious in design and high in production efficiency.

Description

Automatic disconnected mouthful structure of gluing is advanced to injection molding level

Technical Field

The utility model relates to an injection mold's local improved design technical field especially relates to an injection molding is flat advances to glue automatic disconnected jiao kou structure.

Background

In the prior art, in the injection molding production of plastic products, the products obtained after the whole injection molding process is finished are often connected with the flow channel, and the products and the flow channel can be separated only by manual trimming, so that not only is the manual waste caused, but also the production efficiency is reduced.

At present, plastic parts have various types of glue feeding, wherein plane glue feeding is widely used for some thin-wall parts, and the thin-wall plastic parts adopt plane glue feeding, so that the product has good filling fluidity, good appearance and dimensional stability, but a water gap is connected with the product after forming, and the water gap needs to be removed by secondary processing. Need do the tool behind the product shaping and cut the mouth of a river alone again, increased the human cost, and after the batch production, die-cut tool edge of a knife often leads to the production unstability because of wearing and tearing, causes the die-cut unclean in product mouth of a river to appear die-cut back runner and remains easily, needs secondary operation to handle, needs in time to change the cutter after the certain quantity of follow-up volume production to ensure the volume production stability, and the aforesaid is got rid of the mouth of a river operation and is increased the cost, has reduced efficiency.

Therefore, the structure of the horizontal glue feeding and automatic glue breaking opening of the injection molding part is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that exists among the prior art, and the automatic disconnected mouthful structure of gluing of an injection molding flat feeding that proposes, three thimble boards of this device design and two kinds of thimbles, and injection moulding product and mouth of a river material realize ejecting separation drawing of patterns according to precedence order, and this secondary ejection mechanism design benefit, production efficiency is high.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an automatic disconnected mouth of gluing structure of flat advance of injection molding, is used for ejecting and separating injection moulding product and mouth of a river material on the injection mold, and injection moulding product and mouth of a river material all are located between terrace die and die, and the die is located the movable mould board, and the injection moulding product is ejecting through the product thimble that runs through the movable mould board, and the product thimble is fixed between second thimble board and third thimble board, including the mouth of a river thimble, mouth of a river thimble run through the movable mould board and install on first thimble board, be equipped with the piece that resets between first thimble board and the movable mould board for first thimble board resets when the injection mold compound die, second thimble board and third thimble board all are located between first thimble board and the movable mould bedplate, support through the spacer block between first thimble board and the movable mould bedplate, the interval between second thimble board and the first thimble is the stroke that the product thimble ejected injection moulding product drawing of patterns, namely the product thimble is ejected a section distance earlier, then continues to eject a section distance along with the mouth of a river thimble again.

Furthermore, as mentioned above, the top of the nozzle thimble is provided with the material pulling groove, the material pulling groove can play a role in pulling the nozzle material, so that the nozzle material is not driven to move outwards when the product is ejected, and the bottom of the nozzle thimble is fixed at the grooving position of the first ejector plate through the backing plate.

Further, the material pulling groove is a chute at the side part of the water gap thimble.

Furthermore, as mentioned above, a groove is formed at the bottom of the first ejector plate, the nozzle ejector pin penetrates through the groove, and the backing plate is embedded in the groove to lock the bottom of the nozzle ejector pin.

Further, the bottom surface of the backing plate does not exceed the bottom surface of the first ejector plate, so that the space between the first ejector plate and the second ejector plate is prevented from changing.

Further, the backing plate is fixedly connected with the first ejector plate through bolts.

Furthermore, a spring is arranged between the first ejector retainer plate and the movable template, and a spring is arranged between the second ejector retainer plate and the movable template, so that the second ejector retainer plate can be conveniently reset when the injection mold is closed.

Furthermore, the spacing block is fixed on the movable mold base plate, and the second ejector plate and the third ejector plate are connected through screws.

Further, the spacing blocks as described above are symmetrically arranged at the side of the second ejector plate.

Furthermore, the first ejector plate, the second ejector plate and the third ejector plate are guided by the inner guide posts, and the movable die plate is connected with the movable die plate by the cushion blocks.

Compared with the prior art, the beneficial effects of the utility model are that: this device combines the mounted position design of product thimble and mouth of a river thimble through designing three thimble boards, increases the spacer block, guarantees that the mouth of a river thimble can be ejecting behind the ejecting one section distance of product thimble, makes injection moulding product and mouth of a river material realize ejecting separation drawing of patterns according to the order, and this secondary ejection mechanism design benefit need not manual operation, and production efficiency is high. In addition, the requirements of the injection molding product and the water gap material on easy glue breaking are met by selecting the position of a pouring gate of the injection molding product and designing the shape of a horizontal glue inlet of a runner.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic perspective view of the present invention;

FIG. 3 is a perspective view of the injection molded product and the nozzle material of the present invention;

fig. 4 is a partial cross-sectional view of fig. 3.

In the figure: 2. injection molding the product; 21. side notches; 3. water gap materials; 31. feeding the rubber inlet material horizontally; 11. a water gap thimble; 12. a product thimble; 13. a spring; 14. an inner guide post; 15. a base plate; 16. a first ejector plate; 17. a second ejector plate; 18. a third ejector plate; 19. and a spacer block.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is noted that, unless otherwise explicitly stated or limited, the terms "fixed," "mounted," "connected," "disposed," and the like are to be construed broadly, e.g., when an element is referred to as being "fixed" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

Referring to fig. 1-4, embodiment one, the utility model discloses an injection molding is flat advances to glue automatic disconnected jiao kou structure for carry out ejecting drawing of patterns and the separation of each other to injection moulding product 2 and mouth of a river material 3 on the injection mold, injection moulding product 2 and mouth of a river material 3 all are located between terrace die and die, and the die is located the movable mould board, and the terrace die inlays the dress on the fixed die plate, and when injection mold opens the mould, open between movable mould board and the fixed die plate, injection moulding product 2 and mouth of a river material 3 all remain on the movable mould board. The injection molding product 2 is ejected and demolded through a product ejector pin 12 penetrating through a movable template, the product ejector pin 12 is fixed between a second ejector pin plate 17 and a third ejector pin plate 18, the water gap ejector pin 11 is further included, the water gap ejector pin 11 penetrates through the movable template and is installed on the first ejector pin plate 16, a reset piece is arranged between the first ejector pin plate 16 and the movable template, the reset piece provides acting force for resetting the first ejector pin plate 16 when the injection mold is closed, the second ejector pin plate 17 and the third ejector pin plate 18 are both located between the first ejector pin plate 16 and a movable mold base plate, the first ejector pin plate 16 and the movable mold base plate are supported through a spacer block 19, the spacer block 19 is fastened on the movable mold base plate through screws, the distance between the second ejector pin plate 17 and the first ejector pin plate 16 is a stroke for ejecting the injection molding product 2 and demolding through the product ejector pin 12, namely, the product ejector pin 12 ejects the injection molding product 2 and demolding firstly, then continues ejecting a distance along with the water gap ejector pin 11, and ejects the water gap material 3 and demolding is further performed.

In the second embodiment, on the basis of the technical scheme of the first embodiment, the injection molding piece horizontal glue feeding automatic glue breaking port structure is characterized in that two product thimbles 12 and two thimble plates thereof are designed for an injection mold, the product thimbles 12 are installed between the two thimble plates, the reset of the thimble plates generally passes through a reset rod, the reset rod penetrates through a movable mold plate, and the ejector plates are reset by pushing of a fixed mold plate during mold closing. The utility model discloses the design key point of the ejecting structure of secondary that the device adopted lies in, 2 earlier liftouts of injection moulding product and mouth of a river material 3 separation, recycle mouth of a river thimble 11 with the 3 ejecting mould drawing of patterns of mouth of a river material, product thimble 12 earlier liftouts of 2 drawing of patterns of injection moulding product and with mouth of a river material 3 disconnection separation promptly, then the second thimble board drives first thimble board and continues behind ejecting certain stroke, makes mouth of a river thimble 11 ejecting again, realizes the drawing of patterns blanking with the 3 ejecting movable mould boards of mouth of a river material.

As shown in fig. 1 and 2, for the structure of the nozzle ejector pins 11, a material pulling groove is arranged at the top of the nozzle ejector pins 11, the material pulling groove can play a role in pulling the nozzle material 3, so that the injection molding product 2 cannot be driven to move outwards when being ejected, a disconnection effect with the injection molding product 2 can be realized, the bottom of the nozzle ejector pins 11 is fixed at the grooving position of a first ejector plate 16 through a backing plate 15, the fixed position of the nozzle ejector pins 11 is arranged at the bottom of the first ejector plate 16, the mounting position is reserved through the grooving at the bottom, the backing plate 15 and the corresponding hole-opening screw hole position are passed through, and finally the backing plate 15 is locked on the first ejector plate 16 through bolts, so as to play a role in fixing the nozzle ejector pins 11.

Furthermore, the material pulling groove is a chute at the side part of the water gap thimble 11, the chute is positioned at the side part of the water gap thimble 11, the opening of the chute is open, the water gap material 3 can be naturally separated from the chute under the action of gravity after being demoulded and fall down, and the chute and the runner cavity are formed together to form the water gap material 3. Further, as shown in fig. 1, a groove is formed in the bottom of the first ejector plate 16, the groove is located on the side of the first ejector plate 16, and is convenient for machining, cutting and grooving, the nozzle ejector 11 penetrates through the groove, the backing plate 15 is embedded in the groove to lock the bottom of the nozzle ejector 11, the backing plate 15 is connected with the first ejector plate 16 through bolts, and the drawing is not marked and omitted. Further, the bottom surface of the backing plate 15 is not more than the bottom surface of the first ejector pin plate 16, so that the situation that the distance between the first ejector pin plate 16 and the second ejector pin plate 17 is changed to influence the ejection stroke of the second ejector pin plate 17, the stroke of the product ejector pins 12 is reduced, and the injection molding product 2 cannot be ejected completely is avoided. Furthermore, the backing plate 15 is fixedly connected with the first ejector plate 16 through bolts, the connection is firm, the backing plate is detachable, and generally, countersunk bolts are selected for processing counter bores on the backing plate 15.

In the third embodiment, after the injection mold completes injection molding, the injection product 2 and the nozzle material 3 need to be ejected and demolded, and then the injection product 2 and the nozzle material 3 are cut off and separated, because the injection product 2 and the nozzle material 3 are both located between the male mold and the female mold, the male mold is located on the fixed mold plate, the female mold is located on the movable mold plate, when the injection mold is opened, the injection product 2 and the nozzle material 3 are both located on the movable mold plate, the injection product 2 is ejected through the product ejector pins 12 penetrating through the movable mold plate, the product ejector pins 12 are fixed between the second ejector pin plate 17 and the third ejector pin plate 18, when the injection product 2 is ejected and demolded by the product ejector pins 12, the nozzle material 3 needs to be subjected to secondary processing to be cut off and separated from the injection product 2, and the operation is complicated.

The utility model discloses the improvement of device lies in, through increasing mouth of a river thimble 11, mouth of a river thimble 11 run through the movable mould board and install on first thimble board 16, first thimble board 16 drives the outside 3 drawing of patterns of ejecting mouth of a river material of mouth of a river thimble 11 under the promotion of second thimble board 17, be equipped with the piece that resets between first thimble board 16 and the movable mould board, first thimble board 16 is exerted the effort and is reset by the piece that resets when being used for injection mold compound die, second thimble board 17 and third thimble board 18 all lie in between first thimble board 16 and the movable mould bedplate, support through spacer 19 between first thimble board 16 and the movable mould bedplate, the movable mould bedplate is installed on the injection molding machine, ejection mechanism on the injection molding machine can promote the outside ejecting motion of third thimble board, the ejecting power of product thimble 12 and thimble 11 is provided, make mouth of a river injection moulding product 2 and mouth of a river material 3 can realize the drawing of a mould, because the blanking order is different, can adopt different material receiving boxes to change and connect the material, mouth of a river material 3 can collect the back, smash into the fritter and continue to get into the throwing feed bin of injection molding machine, realize waste recovery recycling.

As can be seen from fig. 1 and 2, a spring 13 is arranged between the first ejector plate 16 and the movable die plate as a reset member, and a spring 13 is arranged between the second ejector plate 17 and the movable die plate, so that the second ejector plate 17 can be reset when the injection mold is closed. For the spacer 19 for adjusting the secondary ejection distance, the spacer 19 is fixed on the movable mold base plate, two spacers 19 are generally arranged and symmetrically mounted on the movable mold base plate, and further, the spacer 19 is symmetrically arranged at the side of the second ejector plate 17. Furthermore, a second ejector plate 17 is connected with a third ejector plate 18 through screws, the second ejector plate 17 and the third ejector plate 18 are fixed together to fix the product ejector pins 12, the first ejector plate 16, the second ejector plate 17 and the third ejector plate 18 are guided through the inner guide pillars 14, and the three ejector plates are accurately guided during ejection, namely the inner guide pillars 14 can further improve the accuracy of the ejection movement direction of the product ejector pins 12 and the nozzle ejector pins 11, and the movable die plate is connected with the movable die base plate through cushion blocks.

The utility model discloses the device has carried out the adaptability improvement equally to injection moulding product 2 and runner, as shown in fig. 3 and fig. 4, the side incision 21 of hidden indent is established to injection moulding product 2 lateral part, can not influence the product appearance, advance gluey entry as the plane, the mouth of a river material 3's the flat facet that adopts easy disconnection on advancing gluey entry material 31's the shape design combines together with wide-angle inclined plane, adopt above-mentioned structure on the level of mould advances gluey entry runner design equally promptly, be convenient for follow-up injection moulding product 2 ejecting with mouth of a river material 3 ejecting separation, can not influence injection moulding product's whole outward appearance.

To this injection moulding product 2, injection moulding product 2's ejecting stroke can realize for 5mm and expect 3 the flat glue inlet material 31 phase separations with the mouth of a river, the utility model discloses on the spacer parameter design of device, establish to 5mm to the interval of injection mold first thimble board 16 after reseing and second thimble board 17. The adopted secondary ejection structure uses three ejector plate, the product ejector pins 12 are placed between the second ejector plate 17 and the third ejector plate 18 and fixed, and the water gap ejector pins 11 are placed on the first ejector plate 16 and fixed through the cushion blocks 15. The springs 13 are used as reset pieces for all three ejector plates, and the design of the spacing blocks 19 plays a role in stroke difference.

When a molding cycle of an injection molding product 2 is completed, after the mold is opened, an ejection mechanism of the injection molding machine firstly ejects a third ejector plate 18 and drives a second ejector plate 17 to move to drive a product ejector pin 12 to separate the injection molding product 2 from a horizontal feeding rubber inlet material 31 and then to discharge the injection molding product, after the injection molding product is ejected by a stroke of 5mm, the second ejector plate 17 touches a first ejector plate 16 and pushes a water gap ejector pin 11 to eject, the horizontal feeding rubber inlet material 31 moves forwards along with the water gap ejector pin 11, the water gap material 3 is ejected out of a movable mold plate to be molded and naturally discharged under the action of gravity, the ejection and separation operations of the injection molding product 2 and the water gap material 3 are completed, the ejection mechanism of the injection molding machine retreats and resets, the three ejector plates reset under the action of a spring, the water gap ejector pin 11 and the product ejector pin 12 reset, the injection mold is closed and starts to inject, and the actions are repeated.

The utility model discloses in the device, the assembly cooperation relation etc. of each part that involves be prior art or material, and affiliated technical staff can directly purchase or order from the market according to required product model and specification.

The electrical components presented in the text are all electrically connected with an external master controller and 220V commercial power or industrial power, and the master controller can be a conventional known device with a control function such as a computer.

The above description is only a preferred embodiment of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It is obvious to a person skilled in the art that the invention is not restricted to details of the embodiments presented above, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered as exemplary and not restrictive in any way, and any person skilled in the art should be considered as the technical scope of the present invention, and all equivalent substitutions or changes according to the technical solution of the present invention and the inventive concept thereof should be covered by the protection scope of the present invention.

Claims (10)

1. The utility model provides an automatic disconnected gum mouth structure of flat gluey of advancing of injection molding for ejecting and separating injection moulding product and mouth of a river material on the injection mold, injection moulding product and mouth of a river material all are located between terrace die and die, and the die is located the movable mould board, and injection moulding product is ejecting through the product thimble that runs through the movable mould board, and the product thimble is fixed between second thimble board and third thimble board, its characterized in that includes the mouth of a river thimble, mouth of a river thimble run through the movable mould board and install on first thimble board, be equipped with the release between first thimble board and the movable mould board, second thimble board and third thimble board all are located between first thimble board and the movable mould bedplate, support through the spacer between first thimble board and the movable mould bedplate, and the interval between second thimble board and the first thimble board is the stroke of the ejection of injection moulding product drawing of patterns of product thimble.

2. The automatic glue-breaking structure for the horizontal feeding of the injection-molded parts according to claim 1, wherein a material-pulling groove is arranged at the top of the water gap ejector pin, and the bottom of the water gap ejector pin is fixed at the groove of the first ejector plate through a backing plate.

3. The structure of claim 2, wherein the chute is a chute at the side of the thimble of the nozzle.

4. The automatic glue-breaking structure for the horizontal feeding of injection-molded parts according to claim 3, wherein the bottom of the first ejector plate is provided with a groove, the water gap ejector pin penetrates through the groove, and the backing plate is embedded in the groove and locks the bottom of the water gap ejector pin.

5. The automatic glue-breaking structure for the horizontal feeding of injection-molded parts according to claim 4, wherein the bottom surface of the backing plate does not exceed the bottom surface of the first ejector plate.

6. The automatic glue-breaking structure for the horizontal glue-feeding of the injection-molded part according to claim 5, wherein the backing plate is fixedly connected with the first ejector plate through a bolt.

7. The automatic glue-breaking opening structure for the translational motion of the injection-molded part according to claim 1, wherein a spring is arranged between the first ejector plate and the movable mold plate, and a spring is arranged between the second ejector plate and the movable mold plate.

8. The automatic glue-breaking structure for the horizontal glue-feeding of the injection-molded parts as claimed in claim 1, wherein the spacer block is fixed on the moving mold base plate, and the second ejector plate and the third ejector plate are connected by screws.

9. The automatic glue-breaking structure for the horizontal feeding of injection-molded parts according to claim 8, wherein the spacing blocks are symmetrically arranged on the side of the second ejector plate.

10. The automatic glue-breaking structure for the horizontal glue-feeding of the injection-molded part according to claim 9, wherein the first ejector plate, the second ejector plate and the third ejector plate are guided by inner guide pillars, and the movable die plate and the movable die base plate are connected by cushion blocks.

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