CN110774555A

CN110774555A - Plastic plate extrusion die

Info

Publication number: CN110774555A
Application number: CN201911294945.8A
Authority: CN
Inventors: 肖红金
Original assignee: Daye Jinyu Mould Technology Co Ltd
Current assignee: Daye Jinyu Mould Technology Co Ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-02-11

Abstract

The invention provides a plastic plate extrusion die. The utility model discloses a plastic sheet extrusion tooling, including discharge gate department install the mould body of connecting sealed apron in the rotation, heating mechanism and grooving mechanism, heating mechanism sets up on the mould body, heating mechanism includes the side case, the top surface case, the air duct, the heating pipe, first heat-conducting plate and second heat-conducting plate, two side casees that the specification is the same are fixed mounting respectively in the both sides wall of the mould body, and two equal fixed mounting in the side incasement has the heating pipe, top surface case fixed mounting is at the top of the mould body, and the top surface case communicates with each other through the side case mutually of many the same air ducts and the mould body both sides respectively, the equal fixed gomphosis of the inner wall that the side case corresponds the mould body has first heat-conducting plate, the top surface case corresponds the fixed gomph. The plastic plate extrusion die provided by the invention has the advantages of multi-surface heating and convenience for grooving the bottom of a plastic plate.

Description

Plastic plate extrusion die

Technical Field

The invention relates to the technical field of dies, in particular to a plastic plate extrusion die.

Background

The extrusion die belongs to a forming die, and the phenomenon is realized by the extrusion action only in other discharging modes. The method is widely applied to aluminum special-shaped structures and is also used in plastic parts. The front end of the extruder is used for manufacturing pipes or profiled bars. In short, a mold is a tool used to shape an article, the tool having various parts, and different molds being formed of different parts. The shape of the object is processed mainly by changing the physical state of the formed material, the extrusion die can be described by a metaphor, namely, a crutch-shaped cavity is drilled on the bottom plate of the inflator, the air outlet is blocked, the piston is drawn out, yellow mud is filled in the cylinder, and the piston is inserted in the cylinder to suspend for 'inflating', so that an extruded 'triangular iron' can be obtained. This pump is the extrusion die. In fact, the extrusion die is almost the same as the extrusion die, has high strength, and is made of powder metallurgy hard alloy as a bottom plate and is inflated by a hydraulic press.

The appearance of the plastic plate extrusion die greatly facilitates the manufacture of plates, but the plastic plate manufacturing device at the current stage has a plurality of defects, for example, the bottom of the plastic plate is not easy to be processed and grooved during processing, and meanwhile, the surface of the plastic plate is unevenly heated, so that the plate processing effect is poor, and the phenomenon of molding and unevenness of the plate is easily caused.

Therefore, it is necessary to provide a plastic sheet extrusion die to solve the above technical problems.

Disclosure of Invention

In order to solve the technical problem, the invention provides the plastic plate extrusion die which is heated on multiple surfaces and is convenient for grooving the bottom of a plastic plate.

The invention provides a plastic plate extrusion die, which comprises: a mold body; the heating mechanism is arranged on the die body and comprises side boxes, a top surface box, air guide pipes, heating pipes, a first heat conduction plate and a second heat conduction plate, the two side boxes with the same specification are fixedly arranged on two side walls of the die body respectively, the heating pipes are fixedly arranged in the two side boxes, the top surface box is fixedly arranged at the top of the die body and communicated with the side boxes on two sides of the die body respectively through the same air guide pipes, the first heat conduction plate is fixedly embedded on the inner wall of each side box corresponding to the die body, and the second heat conduction plate is fixedly embedded on the inner wall of each top surface box corresponding to the die body; and the grooving mechanism is used for grooving the plastic plate and is arranged at the plastic plate outlet of the die body.

Preferably, the grooving mechanism includes mounting panel, cutting piece and fixed column, and fixed mounting has the cutting piece that a plurality of equidistance distributes on the mounting panel, and the equal fixed mounting in four corners of mounting panel inner wall has the fixed column, and each fixed column all is fixed respectively through the nut to insert and establish and set up a plurality of the same spacing grooves in the mould body exit, and the plastic board frictional force after the fluting is bigger, and it is stronger to place the stationarity.

Preferably, the two air guide pipes close to the discharge port of the die body in the heating mechanism are respectively provided with an air guide mechanism for preheating and softening the plastic plate.

Preferably, the air guide mechanism includes heat pipe, shower nozzle and valve, and the heat pipe communicates each other with the air duct through the three-way pipe, and the other end fixed mounting of heat pipe has the shower nozzle of spout orientation mould body discharge gate department, and fixed mounting has the valve on the heat pipe, opens the valve on the heat pipe for inside steam spouts to the specific plastic board of roll-off mould through the shower nozzle, and consequently plastic board softens, and then is convenient for slot to plastic board.

Preferably, install the pushing mechanism who is used for promoting plastics panel in the mould body, pushing mechanism includes spacing annular seat, piston and spring, and spacing annular seat fixed mounting is internal at the mould, and just the spacing annular seat is close to the mould internal sliding connection's of installing of mould body discharge gate department piston, and the inner wall fixed mounting of piston has the spring, and the spring pass spacing annular seat and with the internal wall fixed connection of the mould body.

Preferably, the mold body is fixedly provided with a pressurizing air guide interface and an injection molding interface respectively, the pressurizing air guide interface is positioned on the mold body behind the limiting annular seat, the injection molding interface is positioned on the mold body in front of the limiting annular seat, and the air pump is started to pressurize so that the piston pushes the plastic plate in the mold body to push out the mold body.

Compared with the related art, the plastic plate extrusion die provided by the invention has the following beneficial effects:

1. according to the invention, the heating pipes in the two side boxes are opened, so that the heating pipes heat the plastic solution in the die body through the first heat-conducting plates, the heat formed in the heating pipes can be transferred into the top box through the air guide pipes, the upper surface of the plastic solution in the die body is preheated through the second heat-conducting plates, the plastic plates in the die body are heated more uniformly through multi-surface heating, a large amount of processing time is saved through the processing mode, and the processing efficiency is accelerated;

2. when the bottom of the plastic plate is grooved, the grooving mechanism is installed on the die body, and meanwhile, the valve on the heat conduction pipe is opened, so that internal hot gas is sprayed to the plastic plate sliding out of the die body through the spray head, the plastic plate is softened, the plastic plate is convenient to be grooved, and the phenomenon of poor grooving effect of the plastic plate is not easy to occur.

Drawings

FIG. 1 is a schematic structural diagram of a preferred embodiment of a plastic sheet extrusion die according to the present invention;

FIG. 2 is a schematic structural view of the heating mechanism shown in FIG. 1;

FIG. 3 is a schematic structural diagram of the grooving mechanism according to the present invention;

fig. 4 is a schematic structural view of the pushing mechanism of the present invention.

Reference numbers in the figures: 1. the mould body, 2, heating mechanism, 21, side case, 22, top surface case, 23, air duct, 24, heating pipe, 25, first heat-conducting plate, 26, second heat-conducting plate, 3, grooving mechanism, 31, mounting panel, 32, cut piece, 33, fixed column, 4, air guide mechanism, 41, heat-conducting pipe, 42, shower nozzle, 43, valve, 5, pressurization air guide interface, 6, the interface of moulding plastics, 7, pushing mechanism, 71, spacing annular seat, 72, piston, 73, spring, 8, spacing groove.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of a plastic sheet extrusion die according to the present invention; FIG. 2 is a schematic structural view of the heating mechanism shown in FIG. 1; FIG. 3 is a schematic structural diagram of the grooving mechanism according to the present invention; fig. 4 is a schematic structural view of the pushing mechanism of the present invention. The plastic plate extrusion die comprises: the discharge port is provided with a die body 1 which is rotatably connected with the sealing cover plate, a heating mechanism 2 and a groove cutting mechanism 3.

In the specific implementation process, as shown in fig. 1 and 2, the heating mechanism 2 is arranged on the mold body 1, the heating mechanism 2 comprises a side box 21, a top box 22, an air duct 23, a heating pipe 24, a first heat conducting plate 25 and a second heat conducting plate 26, the two side boxes 21 with the same specification are respectively and fixedly arranged on two side walls of the mold body 1, the heating pipe 24 is respectively and fixedly arranged in the two side boxes 21, the top box 22 is fixedly arranged on the top of the mold body 1, the top box 22 is respectively communicated with the side boxes 21 on two sides of the mold body 1 through the multiple same air ducts 23, the first heat conducting plate 25 is fixedly embedded on the inner wall of the side box 21 corresponding to the mold body 1, and the second heat conducting plate 26 is fixedly embedded on the inner wall of the top box 22 corresponding to the mold body 1.

It should be noted that: through opening the heating pipe 24 in two side casees 21, thereby the heating pipe 24 heats the plastic solution in the mould body 1 through first heat-conducting plate 25, the heat that forms in the heating pipe 24 simultaneously also can transmit to the top surface incasement 22 in through air duct 23, and utilize second heat-conducting plate 26 to preheat the upper surface of plastic solution in the mould body 1, when heating to the regulation time, open sealed sliding closure 2, treat its cooling can, it can to make the more even of the heating of the plastic sheet in the mould body 1 through the multiaspect heating, and saved a large amount of process time through this kind of processing method, and the machining efficiency is accelerated.

Referring to fig. 1 and 4, a pushing mechanism 7 for pushing the plastic sheet is installed in the mold body 1, the pushing mechanism 7 includes a limiting annular seat 71, a piston 72 and a spring 73, the limiting annular seat 71 is fixedly installed in the mold body 1, and a piston 72 which is connected in a sliding way is arranged in the die body 1 of the limiting annular seat 71 close to the discharge port of the die body 1, a spring 73 is fixedly arranged on the inner wall of the piston 72, and the spring 73 penetrates through the limiting annular seat 71 and is fixedly connected with the inner wall of the die body 1, the pressurizing air guide port 5 and the injection molding port 6 are respectively and fixedly installed on the die body 1, the pressurizing air guide port 5 is positioned on the die body 1 behind the limiting annular seat 71, the injection molding port 6 is positioned on the die body 1 in front of the limiting annular seat 71, the pressurizing air guide port 5 is connected with an air pump, and the air pump is started to pressurize so that the piston 72 pushes the plastic plate in the die body 1 to push out the die body 1.

Referring to fig. 1 and 3, a groove cutting mechanism 3 for grooving a plastic plate is installed at an outlet of the plastic plate of the die body 1, the groove cutting mechanism 3 includes a mounting plate 31, a plurality of cutting blades 32 and fixing columns 33, the mounting plate 31 is fixedly installed with a plurality of cutting blades 32 distributed at equal intervals, four corners of the inner wall of the mounting plate 31 are fixedly installed with the fixing columns 33, each fixing column 33 is respectively fixedly inserted in the outlet of the die body 1 through nuts and is provided with a plurality of identical limiting grooves 8, two air guide tubes 23 of the heating mechanism 2 close to the outlet of the die body 1 are respectively installed with an air guide mechanism 4 for preheating and softening the plastic plate, the air guide mechanism 4 includes a heat pipe 41, a spray head 42 and a valve 43, the heat pipe 41 is mutually communicated with the air guide tubes 23 through a three-way pipe, and the spray head 42 with a spray nozzle facing the outlet of the die body, a valve 43 is fixedly attached to the heat transfer pipe 41.

It should be noted that: when slotting the bottom of the plastic plate, the slotting mechanism 3 is installed on the die body 1, and the valve 43 on the heat conducting pipe 41 is opened simultaneously, so that the internal hot air is sprayed to the plastic plate of the slide-out die body 1 through the spray head 42, the plastic plate is softened, and then slotting is convenient for the plastic plate, the plastic plate is not easy to cause the phenomenon that the slotting effect is not good, the friction force of the grooved plastic plate is larger, and the placing stability is stronger.

The working principle of the plastic plate extrusion die provided by the invention is as follows:

the injection molding interface 6 and the injection plastic liquid tank are fixedly connected with each other, the pressurizing air guide interface 5 is connected with the air pump, the sealing cover plate arranged at the discharge port of the mold body 1 is closed, after the cavity of the mold body 1 is filled with the plastic solution, the heating pipe 24 in the two side boxes 21 is opened, so that the heating pipe 24 heats the plastic solution in the mold body 1 through the first heat conducting plate 25, meanwhile, the heat formed in the heating pipe 24 can be transferred into the top box 22 through the air guide pipe 23, the upper surface of the plastic solution in the mold body 1 is preheated through the second heat conducting plate 26, when the plastic solution is heated to the set time, the sealing sliding cover 2 is opened, the plastic solution is cooled, the plastic plates in the mold body 1 are heated more uniformly through multi-surface heating, the air pump is opened for pressurizing, so that the piston 72 pushes the plastic plates in the mold body 1 to push out, when slotting the bottom of the plastic plate, the slotting mechanism 3 is installed on the die body 1, and the valve 43 on the heat conducting pipe 41 is opened simultaneously, so that the internal hot air is sprayed to the plastic plate sliding out of the die body 1 through the spray head 42, the plastic plate is softened, slotting is convenient for the plastic plate, and the phenomenon of poor slotting effect of the plastic plate is difficult to cause.

The circuits and controls involved in the present invention are prior art and will not be described in detail herein.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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, but 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 thus, should not be construed as limiting the present invention.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A plastic panel extrusion die, comprising:

a die body (1) which is rotationally connected with the sealing cover plate is arranged at the discharge port;

the heating mechanism (2), the heating mechanism (2) is arranged on the die body (1), the heating mechanism (2) comprises a side box (21), a top box (22), an air duct (23), a heating pipe (24), a first heat conducting plate (25) and a second heat conducting plate (26), the two side boxes (21) with the same specification are respectively and fixedly arranged on two side walls of the die body (1), and heating pipes (24) are fixedly arranged in the two side boxes (21), the top surface box (22) is fixedly arranged at the top of the die body (1), and the top surface box (22) is communicated with the side boxes (21) at the two sides of the mould body (1) through a plurality of same air ducts (23), the inner walls of the side boxes (21) corresponding to the die bodies (1) are fixedly embedded with first heat-conducting plates (25), a second heat-conducting plate (26) is fixedly embedded in the top surface box (22) corresponding to the inner wall of the die body (1);

the grooving mechanism (3) is used for grooving the plastic plate, and the grooving mechanism (3) is arranged at the plastic plate outlet of the die body (1).

2. The plastic plate extrusion die as claimed in claim 1, wherein the grooving mechanism (3) comprises a mounting plate (31), a plurality of cutting sheets (32) and fixing columns (33), the mounting plate (31) is fixedly provided with the plurality of cutting sheets (32) distributed at equal intervals, the fixing columns (33) are fixedly arranged at four corners of the inner wall of the mounting plate (31), and each fixing column (33) is respectively fixedly inserted into an outlet of the die body (1) through a nut to form a plurality of identical limiting grooves (8).

3. The plastic plate extrusion die of claim 1, wherein the two air guide pipes (23) in the heating mechanism (2) close to the discharge port of the die body (1) are respectively provided with an air guide mechanism (4) for preheating and softening the plastic plate.

4. The plastic plate extrusion die of claim 3, wherein the air guide mechanism (4) comprises a heat conduction pipe (41), a spray head (42) and a valve (43), the heat conduction pipe (41) is communicated with the air guide pipe (23) through a three-way pipe, the spray head (42) with a spray opening facing the discharge opening of the die body (1) is fixedly installed at the other end of the heat conduction pipe (41), and the valve (43) is fixedly installed on the heat conduction pipe (41).

5. The plastic plate extrusion die of claim 1, wherein a pushing mechanism (7) for pushing the plastic plate is installed in the die body (1), the pushing mechanism (7) comprises a limiting annular seat (71), a piston (72) and a spring (73), the limiting annular seat (71) is fixedly installed in the die body (1), the limiting annular seat (71) is close to the discharge port of the die body (1) and internally provided with the piston (72) in sliding connection, the spring (73) is fixedly installed on the inner wall of the piston (72), and the spring (73) penetrates through the limiting annular seat (71) and is fixedly connected with the inner wall of the die body (1).

6. The plastic plate extrusion die of claim 5, wherein the die body (1) is fixedly provided with a pressurizing air guide port (5) and an injection molding port (6), the pressurizing air guide port (5) is arranged on the die body (1) behind the limiting annular seat (71), and the injection molding port (6) is arranged on the die body (1) in front of the limiting annular seat (71).