CN210651687U - Mold for forming knob positioning block in one step - Google Patents

Abstract

The utility model discloses a mould for forming a knob positioning block, which comprises a base, wherein square irons are arranged on two transverse sides of the base, a lower mould base is fixedly arranged on the square irons, the lower mould base is movably connected with an upper mould base through a guide pillar matched with a guide sleeve, and a top module is fixedly arranged on the upper mould base; the lower die comprises a lower die base, a containing space is formed in the lower die base, a lower die core is arranged in the containing space, two symmetrically-arranged die cavities are formed in the lower die core, a die table vertically penetrating through the lower die base and the lower die core and extending into the die cavities is arranged at the position, matched with each die cavity, of the lower die base, the die cavities are matched with the die table to form lower grooves, the two lower grooves are communicated with a pouring system through runners formed in the lower die core, an upper mounting groove is formed in the position, opposite to the containing space, of the upper die core in butt joint with the lower die core in a matched mode is embedded in the mounting groove, two symmetrically-arranged concave-convex dies are formed in the bottom end of the upper die core, the two concave-convex dies are matched with the two lower grooves in structure and position, the lower die core and.

Description

Mold for forming knob positioning block in one step

Technical Field

The utility model belongs to the technical field of the vapour turning mold utensil technique and specifically relates to a go out mould of two shaping knob locating pieces.

Background

An injection mold is a tool for producing plastic products and also a tool for giving the plastic products complete structure and precise dimensions. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification. The injection mold generally includes an upper mold, a lower mold, an upper mold core disposed on the upper mold, a lower mold core disposed on the lower mold core, and a matched mold closing/releasing operation between the upper mold core and the lower mold core is performed to complete the injection molding.

In the field of automobile products, parts of automobiles, such as panels, instrument panel housings, trim panels, plastic parts, etc., are often injection molded by injection molds. Conventionally, a knob positioning block 001 shown in fig. 1 is often processed by using an injection mold, and the knob positioning block 001 is a mounting seat for assembling a knob for controlling volume of a CD audio or selecting a channel. However, the existing mold for molding the product has the defects of complex design, poor molding effect, low production efficiency and large material waste.

SUMMERY OF THE UTILITY MODEL

The technical problem solved by the utility model is to the defect of existence among the above-mentioned prior art, provide a mould of two shaping knob locating pieces, this mould structure retrencies, and fashioned knob locating piece appearance is graceful, and production efficiency is high.

In order to solve the technical problem, the technical scheme adopted by the utility model is that the mould for forming the knob positioning block comprises a base, square irons are arranged on two transverse sides of the base, a lower mould base is fixedly arranged on the square irons, the lower mould base is movably connected with an upper mould base through a guide pillar matched with a guide sleeve, and a top module is also fixedly arranged on the upper mould base; the mould comprises a lower mould base, a lower mould core and a lower mould core, wherein the lower mould base is provided with a containing space, the containing space is internally provided with the lower mould core, the lower mould core is provided with two symmetrically arranged mould cavities, the position of the lower mould base matched with each mould cavity is provided with a mould platform vertically penetrating through the lower mould base and the lower mould core and extending into the mould cavities, the mould cavities are matched with the mould platform to form a lower groove, the lower groove is communicated with a pouring system through a runner formed on the lower mould core, the upper mould base is provided with an upper mounting groove at the position right opposite to the containing space, an upper mould core in butt joint with the lower mould core is embedded in the mounting groove, the bottom end of the upper mould core is provided with two symmetrically arranged concave-convex moulds, the two concave-convex moulds are matched with the two lower groove in structure and position, the lower mould core and the.

As a further elaboration of the above technical solution:

in the technical scheme, the device further comprises an ejection assembly arranged between two square irons on the base, the ejection assembly comprises a first guide pillar fixedly arranged on the base, a bottom needle plate and an ejector plate are movably arranged on the first guide pillar through a first guide sleeve, the bottom needle plate and the ejector plate are locked and attached through screws, a vertically extending ejector pin and an ejector rod are fixedly arranged on the bottom needle plate, the ejector pin vertically penetrates through the ejector plate, a lower die seat and a lower die core and then respectively extends into a lower groove and a flow channel, and the ejector rod vertically penetrates through the ejector plate and a die table and then extends into the lower groove; the bottom needle plate is also provided with a plurality of reset springs which penetrate through the ejector plate vertically from the top end of the bottom needle plate and then movably abut against the lower die holder, the bottom needle plate can slide vertically along the first guide pillar by external ejector rod transmission or damping transmission provided by the reset springs, and the bottom needle plate is driven in a matching manner to drive the ejector pins and the ejector rods to extend into the die cavity and eject and strip the formed knob positioning block or drive the bottom needle plate to drive the ejector pins and the ejector rods to retreat.

In the technical scheme, the base and still be equipped with a plurality of rubbish nails between the end faller, set firmly the multirow on the base and run through the guide post of end faller and thimble board, set firmly vertical running through on the end faller behind the thimble board with die holder swing joint's guide arm.

In the technical scheme, the guide posts are arranged at four corners of the lower die base, and the guide posts movably penetrate into/withdraw from the guide sleeves arranged at the matching positions of the four corners of the upper die base to match with the die for die assembly or die release.

In the technical scheme, the base, the square iron and the lower die holder are fixedly connected through bolts which extend upwards from the bottom end of the base, penetrate through the square iron and penetrate through the lower die holder; the lower die core is locked in the accommodating space through the first bolt and the side insert.

In the technical scheme, the top module is connected with the upper die base through a second bolt vertically extending downwards from the top end of the top module; the upper die core is locked in the mounting groove through a third bolt matched with the first side insert.

In the technical scheme, mortises are convexly formed at four corners of the lower die core, mortises are formed at four corners of the upper die core, and when the lower die core and the upper die core are assembled, the mortises are embedded in the matched mortises to be matched so that the lower die core and the upper die core are in tenon joint.

In the above technical solution, the ejector pins include a flat-mouth ejector pin and a round ejector pin; a group of flat-mouth thimbles are arranged on the bottom needle plate and matched with each mold cavity, and each group of flat-mouth thimbles is matched with one ejector rod to eject and strip the knob positioning block formed in each mold cavity when the mold is demoulded; and the bottom needle plate is provided with a row of round thimbles at the positions matched with the flow channels, and the round thimbles are used for ejecting the nozzle materials in the flow channels out for waste discharge.

Compared with the prior art, the utility model has the advantages that the mould of the utility model adopts a two-out mode to process and form the knob locating block, thereby improving the production efficiency and wasting less materials; the knob positioning block formed by the mould of the utility model has smooth plane and beautiful appearance; and simultaneously, the utility model discloses a mould structure is retrencied, long service life.

Drawings

FIG. 1 is a schematic view of a conventional knob positioning block

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

fig. 3 is an exploded view of the mold of the present invention;

FIG. 4 is an assembly view of the mold base, square iron, ejector assembly and lower mold insert of the present invention;

FIG. 5 is an exploded view of FIG. 4;

fig. 6 is an assembly view of the base and the ejector assembly of the mold of the present invention;

fig. 7 is an assembly view of the upper mold base and the upper mold insert of the mold of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a lesser level than the second feature

Fig. 1-7 illustrate a specific embodiment of the present invention, which is a mold for forming a positioning block of a knob, and the present invention is a mold comprising a base 1, square irons 2 are arranged on both lateral sides of the base 1, a lower mold base 3 is fixedly arranged on the square irons 2, the lower mold base 3 is movably connected with an upper mold base 6 through a guide pillar 4 and a guide sleeve 5, the lower mold base 3 is movably butted with the upper mold base 6 to match the mold closing or demolding of the mold, and a top mold block 7 is also fixedly arranged on the upper mold base 6; an accommodating space 301 is formed in the lower die holder 3, a lower die core 8 is arranged in the accommodating space 301, two symmetrically-arranged die cavities 801 are formed in the lower die core 8, a die table 9 vertically penetrating through the lower die holder 3 and the lower die core 8 and extending into the die cavities 801 is arranged at the position, matched with each die cavity 801, of the lower die holder 3, the die cavities 801 and the die table 9 form a lower groove, in practice, the die table 9 is a columnar die table 9 with a hollow hole, and the top end of the die table 9 is embedded in the die cavities 801 and seals the bottom of the lower groove; the two lower grooves are communicated with a pouring system 000 through a runner 802 formed on the lower die core 8, a mounting groove 601 is formed in the position, opposite to the accommodating space 301, of the upper die base 6, an upper die core 10 matched and butted with the lower die core 8 is embedded in the mounting groove 601, two symmetrically arranged concave-convex dies 101 are formed at the bottom end of the upper die core 10, the two concave-convex dies 101 are matched with the two lower grooves in structure and position, and the lower die core 8 and the upper die core 10 are matched to enable the concave-convex dies 101 to be embedded into the matched lower grooves and form a die cavity of the two molding knob positioning blocks 001; the device also comprises a material ejecting component 11 arranged between the two square irons 2 on the base 1, the material ejecting component 11 comprises a first guide pillar 111 fixedly arranged on the base 1, the first guide post 111 is movably provided with a bottom needle plate 113 and an ejector plate 114 through a first guide sleeve 112, and in practice, the first guide post 111 extends vertically and penetrates the bottom pin plate 113 and the ejector pin plate 114, the first guide sleeves 112 are arranged at the positions where the bottom needle plate 113 and the ejector needle plate 114 are matched with the first guide posts 111, the bottom needle plate 113 and the ejector plate 114 are locked and attached by screws (not numbered in the drawing), the bottom needle plate 113 is fixedly provided with an ejector pin 115 and an ejector rod 116 which extend vertically, the thimble 115 vertically penetrates through the thimble plate 114, the lower die holder 3 and the lower die core 8 and then respectively extends into the lower groove and the runner 802, the ejector rod 115 vertically penetrates through the ejector plate 114 and the die table 9 (extends along a hollow hole of the die table 9) and then extends into the lower groove; the bottom needle plate 113 is further provided with a plurality of return springs 117 which vertically penetrate through the ejector plate 114 from the top end of the bottom needle plate 113 and then movably abut against the lower die holder 3, the bottom needle plate 113 can vertically slide along the first guide post 111 through transmission of an external ejector rod (not shown in the figure) or through damping transmission provided by the return springs 117, and the bottom needle plate 113 is driven in a matching manner to drive the ejector pins 115 and the ejector rods 116 to extend into the die cavity and eject and strip the formed knob positioning block 001 or drive the bottom needle plate 113 to drive the ejector pins 115 and the ejector rods 116 to retreat; during actual work, when the mold is closed, a cavity of two molding knob positioning blocks 001 is formed between the lower mold core 8 and the upper mold core 10, molding of the knob positioning blocks 001 is completed by injecting raw materials into the cavity along the pouring system 000 and the runner 802, after molding is completed, the mold is demolded, the external ejector rod 116 penetrates from the bottom end of the base 1 and pushes the bottom needle plate 113 to drive the ejector pins 115 and the ejector rod 116 to vertically eject into the matched cavity and runner, the ejector pins 115 are matched with the ejector rod 116 to eject and strip the molded knob positioning blocks 001, and the ejector pins 115 further eject and discharge the nozzle materials in the runner 802.

In this embodiment, the pins 115 include a flat pin 115-1 and a dome pin 115-2; a group of flat thimble 115-1 is arranged on the bottom needle plate 113 at a position matched with each mold cavity 801, and each group of flat thimble 115 is matched with one ejector rod 116 to eject and strip the knob positioning block 001 formed in each mold cavity when the mold is demolded; a row of round thimbles 115-2 are arranged on the bottom needle plate 113 at the position matched with the runner 802, and the round thimbles 115-2 are used for ejecting the nozzle material in the runner 802 for waste discharge; a plurality of garbage nails (not shown in the attached drawing) are further arranged between the base 1 and the bottom needle plate 113, the garbage nails are used for supporting the bottom needle plate 113 to form an interval space, the bottom end surfaces of the garbage nails are planes, and the bottom end surfaces of all the garbage nails are located on the same horizontal plane, so that when the ejector pins 115 and the ejector rods 116 reset, the base 1 is only in contact with the garbage nails in a bonding manner, the bonding surface is reduced, impurities are left in the space where the garbage nails are supported, and the problem of uneven bonding is avoided; the base 1 is fixedly provided with a plurality of rows of guide posts 118 penetrating through the bottom needle plate 113 and the ejector plate 114, the bottom needle plate 113 is fixedly provided with a guide rod 119 vertically penetrating through the ejector plate 114 and then movably connected with the lower die holder 3, and when the guide rod 119 is used for ejecting the material of the ejecting assembly, the guide rods guide the bottom needle plate 113 and the ejector plate 114 to stably and vertically move.

In this embodiment, the four corners of the lower die holder 3 are provided with the guide pillars 4, and the guide pillars 4 are movably inserted into/withdrawn from the guide sleeves 5 arranged at the matching positions of the four corners of the upper die holder 6 to match with the dies for die assembly or die release; the base 1, the square iron 2 and the lower die holder 3 are fixedly connected through a bolt 13 which extends upwards from the bottom end of the base 1, penetrates through the square iron 2 and penetrates to the lower die holder 3; the lower die core 8 is locked in the accommodating space through a first bolt 14 and a side insert 15; the top module 7 is connected with the upper die base 6 through a second bolt 16 extending vertically downwards from the top end of the top module; the upper die core 10 is locked in the mounting groove 601 by a third bolt (not shown in the figure) matching with the first side insert 18; mortises 803 are convexly formed at four corners of the lower mold core 8, mortises 102 are formed at four corners of the upper mold core 10, and when the lower mold core 8 and the upper mold core 10 are closed, the mortises 803 are embedded in the matched mortises 102 to be matched so that the lower mold core 8 is in tenon edge lap joint with the upper mold core 10.

The technical scope of the present invention is not limited to the above embodiments, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.

Claims (8)

1. A die for forming a knob positioning block is characterized by comprising a base, square irons are arranged on two transverse sides of the base, a lower die holder is fixedly arranged on the square irons, the lower die holder is movably connected with an upper die holder through a guide pillar matched with a guide sleeve, and a top module is fixedly arranged on the upper die holder; the mould comprises a lower mould base, a lower mould core and a lower mould core, wherein the lower mould base is provided with a containing space, the containing space is internally provided with the lower mould core, the lower mould core is provided with two symmetrically arranged mould cavities, the position of the lower mould base matched with each mould cavity is provided with a mould platform vertically penetrating through the lower mould base and the lower mould core and extending into the mould cavities, the mould cavities are matched with the mould platform to form a lower groove, the lower groove is communicated with a pouring system through a runner formed on the lower mould core, the upper mould base is provided with an upper mounting groove at the position right opposite to the containing space, an upper mould core in butt joint with the lower mould core is embedded in the mounting groove, the bottom end of the upper mould core is provided with two symmetrically arranged concave-convex moulds, the two concave-convex moulds are matched with the two lower groove in structure and position, the lower mould core and the.

2. The mold of claim 1, further comprising an ejector assembly disposed between two square irons on the base, wherein the ejector assembly comprises a first guide pillar fixed on the base, a bottom pin plate and an ejector pin plate are movably mounted on the first guide pillar through a first guide sleeve, the bottom pin plate and the ejector pin plate are locked by screws, a vertically extending ejector pin and an ejector rod are fixed on the bottom pin plate, the ejector pin vertically penetrates through the ejector pin plate, the lower mold base and the lower mold core and then respectively extends into the lower groove and the flow channel, and the ejector rod vertically penetrates through the ejector pin plate and the mold base and then extends into the lower groove; the bottom needle plate is also provided with a plurality of reset springs which penetrate through the ejector plate vertically from the top end of the bottom needle plate and then movably abut against the lower die holder, the bottom needle plate can slide vertically along the first guide pillar by external ejector rod transmission or damping transmission provided by the reset springs, and the bottom needle plate is driven in a matching manner to drive the ejector pins and the ejector rods to extend into the die cavity and eject and strip the formed knob positioning block or drive the bottom needle plate to drive the ejector pins and the ejector rods to retreat.

3. The mold of claim 2, wherein a plurality of trash nails are further disposed between the base and the bottom needle plate, a plurality of rows of guide posts penetrating through the bottom needle plate and the ejector plate are fixedly disposed on the base, and a guide rod vertically penetrating through the ejector plate and movably connected to the lower mold base is fixedly disposed on the bottom needle plate.

4. The mold of claim 2, wherein the guide posts are disposed at the four corners of the lower mold base, and the guide posts are movably inserted into/withdrawn from the guide sleeves disposed at the matching positions of the four corners of the upper mold base, so as to match the mold for closing or releasing the mold.

5. The mold for producing the positioning block of the molding knob according to claim 2, wherein the base, the square iron and the lower mold base are fixedly connected by a bolt which extends upward from the bottom end of the base and penetrates through the square iron and the lower mold base; the lower die core is locked in the accommodating space through the first bolt and the side insert.

6. The mold of claim 2, wherein the top mold block is connected to the upper mold base by a second bolt extending vertically downward from a top end of the top mold block; the upper die core is locked in the mounting groove through a third bolt matched with the first side insert.

7. The mold for molding the knob positioning block according to any one of claims 2 to 6, wherein the four corners of the lower mold core are provided with mortises, the four corners of the upper mold core are provided with mortises, and when the lower mold core and the upper mold core are assembled, the mortises are embedded in the matched mortises to enable the lower mold core and the upper mold core to be in tenon joint.

8. The mold of claim 7, wherein the pin comprises a flat pin and a round pin; a group of flat-mouth thimbles are arranged on the bottom needle plate and matched with each mold cavity, and each group of flat-mouth thimbles is matched with one ejector rod to eject and strip the knob positioning block formed in each mold cavity when the mold is demoulded; and the bottom needle plate is provided with a row of round thimbles at the positions matched with the flow channels, and the round thimbles are used for ejecting the nozzle materials in the flow channels out for waste discharge.

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