CN211251146U - Mold structure of plastic product - Google Patents

Abstract

The utility model relates to a mould structure of plastic products, which comprises a panel, an A plate, an upper mould core, a B plate and a lower mould core, wherein a plastic product cavity, a first water gap lower cavity and a second water gap cavity are arranged in the lower mould core, a first water gap upper cavity is arranged in the upper mould core, the lower side surface of the B plate is fixedly connected with square iron, the lower end of the square iron is fixedly connected with a bottom plate, an ejector plate is arranged between a left square iron and a right square iron, the ejector plate is provided with a plurality of first ejector pins and at least one second ejector pin, the upper end of the first ejector pin abuts against the lower side of the plastic product, the upper end of the second ejector pin abuts against the lower portion of the first water gap, the lower end of the second ejector pin is connected with the first limiting mechanism, the upper end of the third ejector pin abuts against the side portion and the bottom portion of the second water gap, the lower end of the third ejector pin is connected with the second limiting mechanism, and the ejector pin plate can move up and down between the base plate and the B plate along with the machine tool. The first ejector pin automatically disconnects the plastic product from the second water gap, and the second ejector pin automatically disconnects the first water gap from the second water gap.

Description

Mold structure of plastic product

Technical Field

The utility model relates to a plastic product mold design field especially relates to a mold structure of plastic product.

Background

In a plastic product manufacturing plant and in mold design, in order to enable a plastic product after injection molding to be smoothly taken out of a mold, a design mode of ejector pins or inclined ejector ejection is generally adopted, and the existing ejector pins or inclined ejector ejection mode has the following defects:

(1) after the mold is opened, the ejector pin or the inclined ejector simultaneously ejects the product and the water gap, and the taken plastic product is connected with the water gap into a whole;

(2) in addition, the operation of cutting off the water gap is needed, and the labor and the working hours are spent;

(3) for the combined water gap with regular shape and irregular shape, if the regular water gap has other uses, the combined water gap needs to be further cut, and the regular water gap is taken out, so that the working efficiency is low.

In order to overcome the above problems, we invented a mold structure for plastic products.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an invention aim at solve current thimble or push up ejecting mode to one side, exist the die sinking after, thimble or push up to one side simultaneously with product and mouth of a river ejecting, the plastic product of taking out is connected as an organic whole with the mouth of a river, need carry out the operation that the mouth of a river was amputated in addition, cost manual work and work man-hour, to the combination formula mouth of a river of regular shape and non-regular shape, if the regular mouth of a river is when having other uses, still need further cut the combination formula mouth of a river, take out the regular mouth of a river, problem that work efficiency is. The concrete solution is as follows:

the utility model provides a mould structure of plastic product, which comprises a pane, be fixed in the A board of panel downside, be fixed in the inside last mould benevolence of A inboard, the downside of last mould benevolence and the downside parallel and level of A board, still include the B board that is located A board downside, be fixed in the inside lower mould benevolence of B board, the upside of lower mould benevolence is parallel and level with the upside of B board, lower mould benevolence can fold with last mould benevolence and structure match with it, be equipped with plastic product chamber in the lower mould benevolence, first mouth of a river cavity of resorption, second mouth of a river cavity of resorption, be equipped with first mouth of a river epicoele in the upper mould benevolence, the upper end of first mouth of a river epicoele communicates the mouth of moulding plastics in A board and the panel, the downside left and right of B board, respectively fixed connection a square iron, the lower extreme of square iron and the upside fixed connection of bottom plate, between two, The first ejector pin penetrates through ejector pin holes of the plate B and the lower die core respectively, the upper end of the first ejector pin abuts against the lower side of the plastic product, the second ejector pin penetrates through ejector pin holes of the plate B and the lower die core respectively, the upper end of the second ejector pin abuts against the lower portion of the first water gap, the lower end of the second ejector pin is connected with the first limiting mechanism, the third ejector pin penetrates through ejector pin holes of the plate B and the lower die core respectively, the upper end of the third ejector pin abuts against the side portion and the bottom portion of the second water gap, the lower end of the third ejector pin is connected with the second limiting mechanism, the first limiting mechanism and the second limiting mechanism are arranged in the ejector pin plate, and the ejector pin plate can move up and down between the base plate and the plate B along with the machine. The plastic product cavity, the first water gap upper cavity, the first water gap lower cavity and the second water gap cavity are communicated with each other.

Further, the thimble board includes thimble panel, and with thimble bottom plate of thimble panel downside fixed connection, the lower extreme of first thimble is fixed in the thimble panel.

Further, first stop gear includes, sets up the first spacing groove in thimble panel and thimble bottom plate, sets up the first spacing needle in first spacing groove, and the upper end of first spacing needle supports the lower extreme that leans on the second thimble.

Further, the second limiting mechanism comprises a second limiting groove arranged in the ejector pin panel and the ejector pin base plate, and a second limiting pin arranged in the second limiting groove, wherein the upper end of the second limiting pin abuts against the lower end of the third ejector pin.

Furthermore, the upper ends of the first limiting groove and the second limiting groove are on the same horizontal plane, and the lower end of the first limiting groove is lower than the lower end of the second limiting groove.

Furthermore, the first limiting pin and the second limiting pin can respectively move up and down in the first limiting groove and the second limiting groove, and the lower ends of the first limiting pin and the second limiting pin can respectively expose the lower end of a limiting pin through hole arranged downwards in the thimble bottom plate.

Furthermore, a hook-shaped groove is formed in the upper end of the second ejector pin and is hooked with a hook-shaped block at the lower portion of the first water gap.

Furthermore, the upper half part of the third thimble is a square needle, the upper end of the square needle is provided with a square groove for accommodating the second water gap, and the lower die core is provided with a square through hole matched with the square needle.

Further, the panel is connected with the lathe, and the lathe is connected with the control cabinet electricity, and when moulding plastics and accomplish, the panel is upwards opened to the control cabinet control lathe, A board and upper die benevolence, and the control cabinet control thimble board is the rebound step by step, under first stop gear, second stop gear's effect, through first thimble with plastic product and second mouth of a river automatic disconnection to jack up the plastic product upwards, through second thimble with first mouth of a river and second mouth of a river automatic disconnection, and first mouth of a river jack up upwards, jack up the second mouth of a river upwards through the third thimble.

Furthermore, the front side or the rear side of the lower die core is provided with a plurality of air nozzles which are respectively aligned with the disconnected plastic product, the first water gap and the second water gap, and air is blown in the horizontal direction, so that the plastic product automatically falls into the product storage area, the first water gap automatically falls into the first water gap storage area, and the second water gap automatically falls into the second water gap storage area.

To sum up, adopt the utility model discloses a technical scheme has following beneficial effect:

the utility model provides a current thimble or push up ejecting mode to one side, have the die sinking after, thimble or push up to one side simultaneously with product and mouth of a river ejecting, the plastic product of taking out is connected as an organic wholely with the mouth of a river, need carry out the operation that the mouth of a river was amputated in addition, cost manual work and working hour, to the combination formula mouth of a river of regular shape and non-regular shape, if the regular mouth of a river is when having the other purpose, still need further cut the combination formula mouth of a river, take out the regular mouth of a river, problem that work efficiency is. This scheme is when the completion of moulding plastics, the panel is upwards opened to the control cabinet control machine tool, A board and upper die benevolence, control cabinet control thimble board rebound step by step, under first stop gear, second stop gear's effect, through first thimble with plastic product and second mouth of a river automatic disconnection, and with plastic product jack-up, through second thimble with first mouth of a river and second mouth of a river automatic disconnection, and first mouth of a river jack-up upwards, through third thimble with the second mouth of a river jack-up upwards. The automatic cutting device automatically finishes the operation of automatically cutting off the water gap for automatically cutting off the plastic product from the second water gap and the first water gap from the second water gap respectively, thereby saving the process and cutting time for manually cutting the water gap and reducing the production cost. The air faucet arranged on the front side or the rear side of the lower die core is respectively aligned to the disconnected plastic product, the first water gap and the second water gap, air is blown in the horizontal direction, the plastic product automatically falls into the product storage area, the first water gap automatically falls into the first water gap storage area, the second water gap automatically falls into the second water gap storage area, and therefore the operation of manually taking out the plastic product and the water gap is omitted. In a word, this scheme automated production, do not need artifical the participation, improved production efficiency greatly, reduced manufacturing cost simultaneously.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed to be used in the description of the embodiments of the present invention will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive faculty.

Fig. 1 is an exploded view of a lower mold core, a plastic product, a first nozzle, a second nozzle, a first thimble, a second thimble, a third thimble, a first limit pin and a second limit pin of a mold structure for a plastic product according to the present invention;

FIG. 2 is a sectional view of the mold structure of the plastic product of the present invention, taken along the line A-A in FIG. 1;

fig. 3 is a structural diagram of the mold for plastic products according to the present invention, wherein the plastic products are automatically disconnected from the second nozzle after the mold is opened;

fig. 4 is a structural diagram of the mold for plastic products according to the present invention, in which the first nozzle and the second nozzle are automatically disconnected after fig. 3;

fig. 5 is an enlarged view of region B in fig. 4.

Description of reference numerals:

1-panel, 2-a plate, 3-upper mold core, 4-B plate, 5-lower mold core, 6-plastic product cavity, 7-first nozzle lower cavity, 8-second nozzle cavity, 9-square through hole, 10-first nozzle upper cavity, 11-square iron, 12-bottom plate, 13-first thimble, 14-second thimble, 15-third thimble, 16-plastic product, 17-first nozzle, 18-second nozzle, 19-thimble panel, 20-thimble bottom plate, 21-first limiting groove, 22-first limiting needle, 23-second limiting groove, 24-second limiting needle, 25-limiting needle through hole, 26-hook type groove, 27-hook type block,

28-square needle, 29-square groove, 30-hook groove, 31-inclined surface.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and 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.

For easier understanding of the present invention, the following definitions are made: with reference to the viewer, the viewer faces the drawing sheet of fig. 2, with the left side of the content being the portion to the left of the viewer in the drawing, the right side of the content being the portion to the right of the viewer in the drawing, the front side of the content being the portion closer to the viewer in the drawing, the back side of the content being the portion farther from the viewer in the drawing, the top side of the content being the portion above the viewer in the drawing, and the bottom side of the content being the portion below the viewer in the drawing.

As shown in fig. 1 to 5, a mold structure for plastic products comprises a panel 1, an a plate 2 fixed on the lower side of the panel 1, an upper mold core 3 fixed inside the a plate 2, the lower side of the upper mold core 3 being flush with the lower side of the a plate 2, a B plate 4 located on the lower side of the a plate 2, a lower mold core 5 fixed inside the B plate 4, the upper side of the lower mold core 5 being flush with the upper side of the B plate 4, the lower mold core 5 being foldable with the upper mold core 3 and structurally matched therewith, a plastic product cavity 6, a first lower water gap cavity 7, a second water gap cavity 8, specifically, the second water gap cavity 8 being located inside a square through hole 9 of the lower mold core 5, a first upper water gap cavity 10 being provided in the upper mold core 3, the upper end of the first upper cavity 10 being connected to the injection molding ports (not shown in the drawing) of the a water gap plate 2 and the panel 1, the left and right sides of the B plate 4 being fixedly connected to a square iron 11, the lower ends of the square irons 11 are fixedly connected with the upper side surface of the bottom plate 12, an ejector plate is arranged between the left square iron 11 and the right square iron 11, a plurality of first ejector pins 13, at least one second ejector pin 14 and at least one third ejector pin 15 which are vertically upward are arranged on the ejector plate, the first ejector pins 13 respectively penetrate through ejector pin holes of the B plate 4 and the lower mold core 5, the upper ends of the first ejector pins 13 abut against the lower side of a plastic product 16, the second ejector pins 14 respectively penetrate through ejector pin holes of the B plate 4 and the lower mold core 5, the upper ends of the second ejector pins 14 abut against the lower part of the first water gap 17, the lower ends of the second ejector pins 14 are connected with a first limiting mechanism, the third ejector pins 15 respectively penetrate through ejector pin holes of the B plate 4 and the lower mold core 5, the upper ends of the third ejector pins 15 abut against the side part and the bottom part of the second water gap 18, the lower ends of the third ejector pins 15 are connected with a second limiting mechanism, the first limiting mechanism and the second limiting mechanism are arranged in the ejector plate, and (4) moving downwards. The plastic product cavity 6, the first water gap upper cavity 10, the first water gap lower cavity 7 and the second water gap cavity 8 are communicated with each other.

Further, the ejector plate includes an ejector pin plate 19, and an ejector pin base plate 20 fixedly connected to a lower side surface of the ejector pin plate 19, and a lower end of the first ejector pin 13 is fixed in the ejector pin plate 19. In this embodiment, five first ejector pins 13 are provided.

Further, the first limiting mechanism includes a first limiting groove 21 disposed in the thimble panel 19 and the thimble base plate 20, and a first limiting pin 22 disposed in the first limiting groove 21, wherein an upper end of the first limiting pin 22 abuts against a lower end of the second thimble 14.

Further, the second limiting mechanism includes a second limiting groove 23 disposed in the thimble panel 19 and the thimble base plate 20, and a second limiting pin 24 disposed in the second limiting groove 23, wherein an upper end of the second limiting pin 24 abuts against a lower end of the third thimble 15.

Further, the upper ends of the first limiting groove 21 and the second limiting groove 23 are on the same horizontal plane, and the lower end of the first limiting groove 21 is lower than the lower end of the second limiting groove 23.

Further, the first and second position-limiting pins 22 and 24 can move up and down in the first and second position-limiting grooves 21 and 23, respectively, and the lower ends of the first and second position-limiting pins 22 and 24 can expose the lower end of the downward position-limiting pin through hole 25 in the thimble substrate 20, respectively. Preferably, the first stopper pin 22 and the second stopper pin 24 have the same structure.

Further, the upper end of the second needle 14 is provided with a hook-shaped groove 26 which is hooked with a hook-shaped block 27 at the lower part of the first nozzle 17, so as to ensure that the plastic product 16 does not lift the first nozzle 17 upwards when the first needle 13 is lifted, but the plastic product 16 is separated from the first nozzle 17 (see the related description below).

Furthermore, the upper half of the third thimble 15 is a square needle 28, and the upper end of the square needle 28 is provided with a square groove 29 for accommodating the second nozzle 18, and in particular, the square groove 29 is overlapped with the second nozzle cavity 8 when the mold is not opened. The square needle 28 penetrates into the square through hole 9. The upper end of the square groove 29 is provided with a hook groove 30, and the hook groove 30 is matched and hooked with an inclined surface 31 at the upper end of the second water gap 18, so that when the first thimble 13 jacks up the plastic product 16 and the second thimble 14 jacks up the first water gap 17, the second water gap 18 does not fall off upwards, but the plastic product 16 is disconnected from the second water gap 18 and the first water gap 17 is disconnected from the second water gap 18, and details are described below.

Further, the panel 1 is connected with a machine tool, the machine tool is electrically connected with a control console (not shown in the figure), when injection molding is completed, the control console controls the machine tool to upwards open the panel 1, the A plate 2 and the upper mold core 3, the control console controls the ejector plate to upwards move step by step, under the action of the first limiting mechanism and the second limiting mechanism, the plastic product 16 is automatically disconnected from the second water gap 18 through the first ejector pin 13 and upwards jacks the plastic product 16, the first water gap 17 is automatically disconnected from the second water gap 18 through the second ejector pin 14 and upwards jacks the first water gap 17, and the second water gap 18 is upwards jacked through the third ejector pin 15.

Furthermore, a plurality of air nozzles (the air nozzles are electrically connected with the console through electromagnetic valves and are not shown in the figure) are arranged on the front side or the rear side of the lower mold core 5 and respectively aligned with the disconnected plastic product 16, the first water gap 17 and the second water gap 18, and air is blown in the horizontal direction, so that the plastic product 16 automatically falls into a product containing area (not shown in the figure), the first water gap 17 automatically falls into the first water gap containing area (not shown in the figure), and the second water gap 18 automatically falls into the second water gap containing area (not shown in the figure).

To sum up, adopt the utility model discloses a technical scheme has following beneficial effect:

the utility model provides a current thimble or push up ejecting mode to one side, have the die sinking after, thimble or push up to one side simultaneously with product and mouth of a river ejecting, the plastic product of taking out is connected as an organic wholely with the mouth of a river, need carry out the operation that the mouth of a river was amputated in addition, cost manual work and working hour, to the combination formula mouth of a river of regular shape and non-regular shape, if the regular mouth of a river is when having the other purpose, still need further cut the combination formula mouth of a river, take out the regular mouth of a river, problem that work efficiency is. This scheme is when moulding plastics when accomplishing, panel 1 is upwards opened to the control cabinet control machine tool, A board 2 and go up mould benevolence 3, control cabinet control thimble board is rebound step by step, under first stop gear, second stop gear's effect, through first thimble 13 with plastic product 16 with the automatic disconnection of second mouth of a river 18, and with the 16 jack-ups of plastic product, through second thimble 14 with first mouth of a river 17 with the automatic disconnection of second mouth of a river 18, and first mouth of a river 17 jack-ups, through third thimble 15 with the 18 jack-ups of second mouth of a river. The operation of automatically cutting off the water gap, namely automatically disconnecting the plastic product 16 from the second water gap 18 and automatically disconnecting the first water gap 17 from the second water gap 18 is automatically completed, so that the process and the cutting time of manually cutting the water gap are saved, and the production cost is reduced. The air nozzles arranged on the front side or the rear side of the lower die core 5 are respectively aligned to the disconnected plastic product 16, the first water gap 17 and the second water gap 18, air is blown in the horizontal direction, so that the plastic product 16 automatically falls into the product storage area, the first water gap 17 automatically falls into the first water gap storage area, the second water gap 18 automatically falls into the second water gap storage area, and the operation of manually taking out the plastic product 16 and the water gaps is omitted. In a word, this scheme automated production, do not need artifical the participation, improved production efficiency greatly, reduced manufacturing cost simultaneously.

The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.

Claims (10)

1. The utility model provides a mould structure of plastic product which characterized in that: the lower die core is arranged in the upper die core, the upper side surface of the lower die core is flush with the upper side surface of the B plate, the lower die core can be folded with the upper die core and is structurally matched with the upper die core, a plastic product cavity, a first water gap lower cavity and a second water gap cavity are arranged in the lower die core, a first water gap upper cavity is arranged in the upper die core, the upper end of the first water gap upper cavity is communicated with an injection molding opening in the A plate and the panel, the left side and the right side of the lower side surface of the B plate are respectively and fixedly connected with a square iron, and the lower end of the square iron is fixedly connected with the upper side surface of the bottom plate; an ejector plate is arranged between the left square iron and the right square iron, a plurality of first ejector pins, at least one second ejector pin and at least one third ejector pin which are vertically upward are arranged on the ejector plate, the first ejector pins respectively penetrate through ejector pin holes of the B plate and the lower die core, the upper ends of the first ejector pins abut against the lower side of the plastic product, the second ejector pins respectively penetrate through the ejector pin holes of the B plate and the lower die core, the upper ends of the second ejector pins abut against the lower portion of the first water gap, the lower ends of the second ejector pins are connected with a first limiting mechanism, the third ejector pins respectively penetrate through the ejector pin holes of the B plate and the lower die core, the upper ends of the third ejector pins abut against the side portion and the bottom portion of the second water gap, the lower ends of the third ejector pins are connected with a second limiting mechanism, the first limiting mechanism and the second limiting mechanism are arranged in the ejector plate, and the ejector plate; the plastic product cavity, the first water gap upper cavity, the first water gap lower cavity and the second water gap cavity are communicated with each other.

2. The mold structure of claim 1, wherein: the thimble board includes thimble panel, and with thimble bottom plate of thimble panel downside fixed connection, the lower extreme of first thimble is fixed in the thimble panel.

3. The mold structure of plastic product as claimed in claim 2, wherein: the first limiting mechanism comprises a first limiting groove arranged in the ejector pin panel and the ejector pin base plate and a first limiting pin arranged in the first limiting groove, and the upper end of the first limiting pin abuts against the lower end of the second ejector pin.

4. The mold structure of claim 3, wherein: the second limiting mechanism comprises a second limiting groove arranged in the ejector pin panel and the ejector pin base plate and a second limiting pin arranged in the second limiting groove, and the upper end of the second limiting pin abuts against the lower end of the third ejector pin.

5. The mold structure of claim 4, wherein: the upper ends of the first limiting groove and the second limiting groove are in the same horizontal plane, and the lower end of the first limiting groove is lower than the lower end of the second limiting groove.

6. The mold structure of claim 5, wherein: the first limiting needle and the second limiting needle can respectively move up and down in the first limiting groove and the second limiting groove, and the lower ends of the first limiting needle and the second limiting needle can respectively expose the lower end of a limiting needle through hole arranged downwards in the thimble bottom plate.

7. The mold structure of claim 6, wherein: and a hook-shaped groove is formed at the upper end of the second ejector pin and is hooked with a hook-shaped block at the lower part of the first water gap.

8. The mold structure of claim 7, wherein: the upper half part of the third thimble is a square needle, the upper end of the square needle is provided with a square groove for accommodating the second water gap, and the lower die core is provided with a square through hole matched with the square needle.

9. The mold structure of claim 8, wherein: the panel is connected with the lathe, and the lathe is connected with the control cabinet electricity, when moulding plastics and accomplishing, the panel is upwards opened to control cabinet control lathe, A board and last mould benevolence, control cabinet control thimble board rebound step by step, under first stop gear, second stop gear's effect, through first thimble with plastic product and second mouth of a river automatic disconnection, and with plastic product jack-up, through second thimble with first mouth of a river and second mouth of a river automatic disconnection, and first mouth of a river jack-up, through third thimble with second mouth of a river jack-up.

10. The mold structure of claim 9, wherein: the front side or the rear side of lower mould benevolence is equipped with a plurality of air faucets, aims at the plastic product of disconnection, first mouth of a river, second mouth of a river respectively, and the horizontal direction is blown, makes the plastic product automatically fall into the product storage area, makes first mouth of a river automatically fall into first mouth of a river storage area, makes the second mouth of a river automatically fall into second mouth of a river storage area.

Images