CN211334358U

CN211334358U - Plastic forming die

Info

Publication number: CN211334358U
Application number: CN201922240372.2U
Authority: CN
Inventors: 汤晓飞; 王俊
Original assignee: Nanjing Bojun Machinery Equipment Manufacturing Co ltd
Current assignee: Nanjing Bojun Machinery Equipment Manufacturing Co ltd
Priority date: 2019-12-14
Filing date: 2019-12-14
Publication date: 2020-08-25
Anticipated expiration: 2029-12-14

Abstract

The utility model discloses a plastic molding die relates to mould technical field, including the die holder: the middle part of the upper end of the lower die base is fixedly connected with a lower die plate through a screw, the middle part of the upper end of the lower die plate is fixedly connected with a forming block, the upper end of the lower die plate is provided with an upper die plate, the upper end of the upper die plate is fixedly connected with an upper die base through a screw, four corners of the upper end of the lower die base are fixedly connected with guide pillars, the upper ends of the guide pillars penetrate through the upper die base, the upper die base is movably connected with the guide pillars, a fixing plate is fixedly connected between the upper ends of the four guide pillars, four guide rods are fixedly connected; through setting up push rod, return spring and ejector pad isotructure, be convenient for carry out automatic drawing of patterns work with plastic workpiece, improved drawing of patterns efficiency, reduced other electric power use moreover, more economical and practical to coolant liquid through the serpentine pipe is convenient for carry out auxiliary cooling to plastic workpiece, has improved drawing of patterns speed.

Description

Plastic forming die

Technical Field

The utility model relates to the technical field of mold, especially, relate to a plastic molding mould.

Background

The mould is used for making the tool of the shaping article, this kind of tool is formed by various parts, different moulds are formed by different parts, it mainly realizes the processing of the article appearance through the change of the physical state of the shaping material, it is the name of "industrial mother".

At present, plastic forming die, the plastics work piece after the shaping is difficult to the drawing of patterns to lead to the drawing of patterns inefficiency, instant mould has the structure of carrying out the drawing of patterns to the work piece, but demoulding structure need operate through other electric power, economical and practical inadequately, and plastics work piece is after the shaping intracavity, need wait for plastics work piece cooling back usually, just can make cope match-plate pattern and lower bolster separation, because do not have better cooling auxiliary structure to cool off plastics work piece, the plastics work piece after the shaping at every turn all need wait for a period of time after can carry out drawing of patterns work, lead to drawing of patterns speed not good, for this reason, we propose a plastic forming die, in order to solve the technical problem who above-mentioned proposes.

SUMMERY OF THE UTILITY MODEL

The utility model provides a plastic forming die to the drawing of patterns inefficiency that the solution above-mentioned background art provided, demoulding structure needs additional electric power to operate, economical and practical inadequately does not have to carry out refrigerated auxiliary structure to the plastics work piece moreover, has reduced the problem of drawing of patterns speed etc..

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a plastic forming die comprises a lower die holder:

the middle part of the upper end of the lower die holder is fixedly connected with a lower die plate through a screw, the middle part of the upper end of the lower die plate is fixedly connected with a forming block, the upper end of the lower die plate is provided with an upper die plate, the upper end of the upper die plate is fixedly connected with an upper die holder through a screw, four corners of the upper end of the lower die holder are fixedly connected with guide pillars, the upper ends of the guide pillars penetrate through the upper die holder and are movably connected with the guide pillars, a fixed plate is fixedly connected between the upper ends of the four guide pillars, four guide rods are fixedly connected with the upper end of the upper die holder, the upper ends of the guide rods penetrate through the fixed plate and are movably connected with the fixed plate, a movable plate is fixedly connected between the upper ends of the four guide rods, the inner middle ends of the upper die holder and the upper die plate are provided, the lower end of the return spring is fixedly connected with the upper end of the upper die base, the left end and the right end of the inner parts of the upper die base and the upper die plate are respectively provided with a guide groove adjacent to the pouring channel, a push rod is connected in the guide grooves in a sliding manner, a forming cavity is arranged at the bottom of the upper template and positioned at the lower ends of the two guide grooves, the molding cavity is butted with the molding block, the left side and the right side of the upper end of the molding cavity are both provided with butting grooves, the lower end of the push rod is fixedly connected with a push block, the push block is butted with the butt joint groove, the periphery of the molding cavity is provided with an annular cooling block, the cooling block is fixedly connected with the upper template, and a coiled pipe is embedded in the cooling block, the left side of the upper end of the coiled pipe is connected with a water inlet pipe, and the left end of the water inlet pipe sequentially penetrates through the cooling block and the upper template, the left side of the lower end of the coiled pipe is connected with a water outlet pipe, and the right end of the water outlet pipe sequentially penetrates through the cooling block and the upper template.

Furthermore, the upper end of the push rod penetrates through the upper die base, the upper end of the push rod penetrates through the inner periphery of the return spring, the upper end of the push rod is fixedly connected with the lower end of the pressing plate, and the initial position of the pressing plate is not in contact with the fixing plate.

Furthermore, the butt joint groove is communicated with the guide groove, and the volume of the push block is equal to the inner volume of the butt joint groove.

Furthermore, the coiled pipe is arranged in the cooling block in a surrounding manner, and the cooling block and the upper template are made of the same material.

Furthermore, the water inlet pipe, the coiled pipe and the water outlet pipe are communicated with each other.

Compared with the prior art, the utility model discloses the beneficial effect who realizes:

move down through the ejector pad, it is ejecting from the shaping intracavity to be convenient for with the plastics work piece is automatic, the condition that the plastics work piece is difficult to take off the material from the shaping intracavity has been avoided taking place, and resilience force through the return spring, be convenient for make ejector pad automatic re-setting, the operation convenience is improved, and the activity of push rod is along with the removal of upper die base and carry out the activity, consequently under the condition that need not to increase other electric power structure, just can be convenient promote the push rod, make more economical and practical of demoulding structure, and through setting up the coiled pipe, let in the coolant liquid in the coiled pipe, thereby be convenient for carry out the heat exchange to the work piece, accelerate the cooling time of work piece, the latency of the drawing of patterns that needs cooling after having reduced the work piece shaping, consequently, the speed of the drawing.

Drawings

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

FIG. 2 is a schematic view of the overall demolding structure of the present invention;

fig. 3 is a schematic diagram of a partially enlarged structure a of the present invention.

In FIGS. 1-3: the device comprises a lower die holder 1, an upper die holder 2, a guide pillar 3, a fixing plate 4, a movable plate 5, a guide rod 6, a pressure plate 7, a return spring 8, a pouring channel 9, a forming block 10, an upper die plate 11, a guide groove 12, a water inlet pipe 13, a water outlet pipe 14, a lower die plate 15, a coiled pipe 16, a cooling block 17, a forming cavity 18, a push rod 19, a push block 20 and a butt joint groove 21.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

It should be understood that the mechanisms, ratios, sizes, etc. shown in the drawings attached to the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the mechanisms, change of the ratio relationship, or adjustment of the size should still fall within the scope that the technical contents disclosed in the present invention can cover without affecting the function and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

Please refer to fig. 1 to 3:

the utility model provides a plastic forming die, including die holder 1, each part to a plastic forming die carries out the detailed description below:

the middle part of the upper end of the lower die holder 1 is fixedly connected with a lower die plate 15 through a screw, the middle part of the upper end of the lower die plate 15 is fixedly connected with a forming block 10, the upper end of the lower die plate 15 is provided with an upper die plate 11, the upper end of the upper die plate 11 is fixedly connected with an upper die holder 2 through a screw, four corners of the upper end of the lower die holder 1 are fixedly connected with guide pillars 3, the upper ends of the guide pillars 3 penetrate through the upper die holder 2, the upper die holder 2 is movably connected with the guide pillars 3, a fixed plate 4 is fixedly connected between the upper ends of the four guide pillars 3, four guide rods 6 are fixedly connected with the upper end of the upper die holder 2, the upper ends of the guide rods 6 penetrate through the fixed plate 4, the guide rods 6 are movably connected with the fixed plate 4, a movable plate 5 is fixedly connected between the upper ends of the four guide rods 6, the middle ends of the upper die holder, and the left and right sides of the lower end of the pressure plate 7 are fixedly connected with return springs 8, the lower ends of the return springs 8 are fixedly connected with the upper end of the upper die holder 2, the left end and the right end of the inner parts of the upper die holder 2 and the upper die plate 11 are provided with guide grooves 12 adjacent to the pouring channel 9, and a push rod 19 is connected in the guide grooves 12 in a sliding manner, a molding cavity 18 is arranged at the bottom of the upper template 11 and positioned at the lower ends of the two guide grooves 12, the molding cavity 18 is butted with the molding block 10, the left side and the right side of the upper end of the molding cavity 18 are both provided with butting grooves 21, the lower end of the push rod 19 is fixedly connected with a push block 20, the push block 20 is butted with a butt joint groove 21, the upper end of the push rod 19 penetrates through the upper die holder 2, the upper end of the push rod 19 penetrates through the inner periphery of the return spring 8, the upper end of the push rod 19 is fixedly connected with the lower end of the pressure plate 7, and the initial position of the pressure plate 7 is not contacted with the fixed plate 4;

specifically, the movable plate 5 is moved downwards, the movable plate 5 drives the upper die holder 2 to move downwards through the guide rod 6, the upper die plate 11 is butted with the lower die plate 15, at the moment, materials are injected from the pouring channel 9 and enter the forming cavity 18 through the pouring channel 9, then the materials are poured and formed through the forming cavity 18 and the forming block 10, after the materials are formed into plastic workpieces, the plastic workpieces are left in the forming cavity 18, at the moment, the movable plate 5 is moved upwards, the movable plate 5 drives the upper die holder 2 to move upwards through the guide rod 6, when the pressing plate 7 is contacted with the fixed plate 4, the upper die holder 2 continues to move upwards, at the moment, the pressing plate 7 extrudes the return spring 8, the push rod 19 extends into the forming cavity 18 through the guide groove 12, the push block 20 is separated from the butting groove 21, so that the push block 20 pushes the plastic workpieces in the forming cavity 18 downwards, and finally, the automatic demolding work is completed, avoided the plastics work piece to be difficult to take off the condition emergence of material from the die cavity 18, when needs carry out the plastics shaping once more, make upper die base 2 move down, up to cope match-

plate pattern

11 and 15 butt joints the back with the lower bolster, resilience force through return spring 8, clamp plate 7 resumes to initial position, and clamp plate 7 drives push rod 19 and moves up, thereby make ejector pad 20 shrink to butt joint inslot 21 in, be convenient for make ejector pad 20 automatic re-setting, the operation convenience has been improved, and push rod 19's activity is along with upper die base 2's removal and move about, consequently under the condition that need not to increase other electric power structure, just can be convenient promote push rod 19, make demoulding structure more economical and practical.

An annular cooling block 17 is arranged on the periphery of the forming cavity 18, the cooling block 17 is fixedly connected with the upper template 11, a coiled pipe 16 is embedded in the cooling block 17, the left side of the upper end of the coiled pipe 16 is connected with a water inlet pipe 13, the left end of the water inlet pipe 13 sequentially penetrates through the cooling block 17 and the upper template 11, the left side of the lower end of the coiled pipe 16 is connected with a water outlet pipe 14, the right end of the water outlet pipe 14 sequentially penetrates through the cooling block 17 and the upper template 11, and the water inlet pipe 13, the coiled pipe 16 and the water outlet pipe 14 are communicated with each other;

further, inject the coolant liquid into inlet tube 13, the coolant liquid enters into coiled pipe 16, because cooling block 17 sets up in the periphery of shaping chamber 18, cooling block 17 is after the heat of absorption plastics work piece, the coolant liquid in the coiled pipe 16 then carries out the heat exchange with cooling block 17, final coolant liquid is then discharged from outlet pipe 14, thereby be convenient for carry out the heat exchange to the work piece, accelerate the cooling time of work piece, the latency that the work piece shaping back needs the cooling drawing of patterns, consequently, the efficiency of the drawing of patterns has been accelerated.

The butt joint groove 21 is communicated with the guide groove 12, and the volume of the push block 20 is equal to the internal volume of the butt joint groove 21;

furthermore, the volume of the push block 20 is equal to the internal volume of the butt joint groove 21, so that a gap can be avoided after the push block 20 is in butt joint with the butt joint groove 21, and the influence on the forming quality of a workpiece is reduced.

The coiled pipe 16 is arranged in the cooling block 17 in a surrounding manner, and the cooling block 17 and the upper template 11 are made of the same material;

furthermore, the coiled pipe 16 is arranged in the cooling block 17 in a surrounding mode, so that the retention time of cooling liquid in the cooling block 17 can be prolonged, the cooling effect of the plastic workpiece is improved better, and the demolding efficiency is improved better.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a plastic molding mould, includes die holder (1), its characterized in that:

the upper die is characterized in that the middle of the upper end of the lower die base (1) is fixedly connected with a lower die plate (15) through a screw, the middle of the upper end of the lower die plate (15) is fixedly connected with a forming block (10), the upper end of the lower die plate (15) is provided with an upper die plate (11), the upper end of the upper die plate (11) is fixedly connected with an upper die base (2) through a screw, four corners of the upper end of the lower die base (1) are fixedly connected with guide pillars (3), the upper ends of the guide pillars (3) penetrate through the upper die base (2), the upper die base (2) is movably connected with the guide pillars (3), a fixed plate (4) is fixedly connected between the upper ends of the guide pillars (3), four guide rods (6) are fixedly connected with the upper end of the upper die base (2), the upper ends of the guide rods (6) penetrate through the fixed plate (4), the guide rods, and the middle ends in the upper die base (2) and the upper die plate (11) are provided with a communicated pouring channel (9), the middle part of the upper end of the upper die base (2) is provided with a pressing plate (7), the left side and the right side of the lower end of the pressing plate (7) are fixedly connected with return springs (8), the lower ends of the return springs (8) are fixedly connected with the upper end of the upper die base (2), the left end and the right end in the upper die base (2) and the upper die plate (11) are provided with guide grooves (12) adjacent to the pouring channel (9), a push rod (19) is slidably connected in the guide grooves (12), the lower ends of the bottom of the upper die plate (11) and positioned in the two guide grooves (12) are provided with forming cavities (18), the forming cavities (18) are in butt joint with the forming blocks (10), the left side and the right side of the upper end of each forming cavity (18) are provided with butt joint grooves (21), and, ejector pad (20) and butt joint groove (21) butt joint, just become die cavity (18) periphery and be annular cooling block (17), cooling block (17) and cope match-plate pattern (11) fixed connection, just cooling block (17) inside is inlayed and is had coiled pipe (16), coiled pipe (16) upper end left side has connect inlet tube (13) mutually, just inlet tube (13) left end has run through in proper order and has worn out cooling block (17) and cope match-plate pattern (11), coiled pipe (16) lower extreme left side has connect outlet pipe (14) mutually, just outlet pipe (14) right-hand member has run through in proper order and has worn out cooling block (17) and cope match-plate pattern (11).

2. A plastic molding die as claimed in claim 1, wherein: the upper end of the push rod (19) penetrates through the upper die base (2), the upper end of the push rod (19) penetrates through the inner periphery of the return spring (8), the upper end of the push rod (19) is fixedly connected with the lower end of the pressing plate (7), and the initial position of the pressing plate (7) is not in contact with the fixing plate (4).

3. A plastic molding die as claimed in claim 1, wherein: the butt joint groove (21) is communicated with the guide groove (12), and the volume of the push block (20) is equal to the internal volume of the butt joint groove (21).

4. A plastic molding die as claimed in claim 1, wherein: the coiled pipe (16) is arranged in the cooling block (17) in a surrounding manner, and the cooling block (17) and the upper template (11) are made of the same material.

5. A plastic molding die as claimed in claim 1, wherein: the water inlet pipe (13), the coiled pipe (16) and the water outlet pipe (14) are communicated with each other.