CN202439171U

CN202439171U - Commutator compression mold

Info

Publication number: CN202439171U
Application number: CN2012200955199U
Authority: CN
Inventors: 苏光清
Original assignee: RUI'AN SHUANGFENG COMMUTATOR CO Ltd
Current assignee: RUI'AN SHUANGFENG COMMUTATOR CO Ltd
Priority date: 2012-03-13
Filing date: 2012-03-13
Publication date: 2012-09-19
Anticipated expiration: 2022-03-13

Abstract

The utility model discloses a commutator compression mold which comprises an upper mold plate, a middle mold plate, a lower mold plate, a bottom board, an upper pothook, a mold core, a material chamber, a pressure head, a draw bar, a front guide pillar and a back guide pillar. The material chamber is movably disposed below the upper mold plate. The upward movement of the material chamber is pulled by the draw bar and the draw bar is fixedly connected with the upper mold plate. The pressure head is fixed arranged at the bottom of the upper mold plate and directly faced to a material cavity of the material chamber, wherein arrayed injection holes are disposed at the bottom board of the material cavity. The upper pothook is fixedly arranged at the side of the material chamber. A saddle used to support the movably installed middle mold plate is arranged at the bottom of the upper pothook. The lower mold plate is provided with the mold core, the front guide pillar and the back guide pillar and is fixedly arranged on the bottom board. An injection port face of each injection hole on the bottom board bottom of the material chamber is provided with a groove and the groove is provided with a profile curve which is the same shape as top surface of a molding commutator and stretches into a hole of the commutator. The commutator compression mold is reasonable in structure, convenient to operate, high in production effivciency and good in compression mold quality of the commutator.

Description

The commutator compression tool

[technical field]

The utility model relates to a kind of commutator compression tool that is used for the commutator compression molding.

[background technology]

Traditional commutator, it will be accomplished compression molding and from compression tool, deviate from need through a lot of procedures, comprises work such as compression tool integral body is repeatedly taken out from press and put into, takes off cope match-plate pattern, takes off template, product stripping; All be that manual work is operated; And owing to will heat plastic during compression moulding, heating-up temperature is generally about the 180-200 degree, so all will put on thick proximity gloves when the workman operates; The whole operation process is loaded down with trivial details; Production efficiency is low, and labor strength is big, and spirit is wanted high concentration; If plastic is a glass fibre, the bonding strength of glass fibre is stronger, carry out compression moulding with the compression tool of existing structure after, the forming surface at commutator top is drawn badly easily during die sinking, influences the compression molding quality of commutator.

[summary of the invention]

To the deficiency that prior art exists, the purpose of the utility model aims to provide a kind of rational in infrastructure, and is easy and simple to handle, and production efficiency is high, the measured commutator compression tool of commutator compression molding matter.

The utility model is implemented through following technical scheme:

The commutator compression tool is characterized in that: compression tool comprises cope match-plate pattern, middle template, lower bolster, base plate, goes up hook, core rod, material chamber, pressure head, pull bar and front and back guide pillar, and the material chamber is in the underside setting of cope match-plate pattern; Slide and be articulated on the pull bar in the material chamber, the upwards activity of material chamber is by the pull bar pulling, and pull bar is fixedly connected with cope match-plate pattern; Pressure head fixed installation in the bottom of cope match-plate pattern, the material chamber of pressure head and material chamber over against, the base plate of material chamber is provided with the injecting hole of arrangement; Last hook is in the side fixed installation of material chamber; The bottom of last hook has the saddle that middle template is held, and middle template activity is provided with, the nib of pilot hole and arrangement before and after middle template is provided with; The front and back pilot hole is corresponding with the front and back guide pillar; The nib of arranging and injecting hole, core rod quantity is identical and corresponding one by one, and core rod and front and back guide pillar fixedly install at lower bolster, and lower bolster fixedly mounts at base plate.

The commutator compression tool of the utility model, its cope match-plate pattern is in the head fixed installation of press during work, and lower platen is installed in the stationary table of press; Before the compression moulding, add the material chamber of pan feeding chamber to the plastic of appropriate amount, the commutator segment of accomplishing screening is put into the nib of template; Put middle template into mould then and hold, after the compression moulding, middle template taken out from mould get final product by the saddle of last hook; Operate very easyly, both reduced labour intensity, improved production efficiency again; With molded 40 commutators of a mold pressing is example, and original experienced operator operates general 8 hourly outputs about 2000, and after adopting the utility model; New worker's 8 hourly outputs easily improve output more than 100% more than 4000.

In the bottom surface of material chamber base plate, the injection hole end face of each injecting hole all offers the type groove, and the type groove has the contour curve that coincide with moulding commutator top end shape and stretch into the commutator endoporus.Above-mentioned key problem in technology is the design of type groove, and the design of type groove makes the injection hole end face be deep into the commutator endoporus, if because the injection hole end face acts directly on the forming surface at commutator top; When die sinking; Pouring head breaks off, because the mutual tractive (particularly the fibrous material material has stronger bonding strength) between the material; Pouring head causes the top forming surface of commutator easily and draws badly, influences the compression molding quality of commutator; The injection hole end face of the utility model design then acts on the forming surface of going deep into commutator endoporus one segment distance; The pouring head that breaks off during die sinking only can cause the material on this forming surface to a certain degree draw bad; And can directly not have influence on the top forming surface of commutator; Thereby the guaranteed compression molding quality of commutator, commutator compression molding quality is good.

In template be provided with pilot hole behind two preceding pilot holes and two, the rear side hole wall opening of back pilot hole, the setting height(from bottom) of frong guide column is lower than the setting height(from bottom) of BB1.Above-mentioned design is the orientation problem when template is put mould in taking into full account; Central template is when the saddle of last hook advances in mould; The back pilot hole of middle template at first can lean BB1, so middle template obtains Primary Location, after then middle template being set level; The frong guide column of this moment also can get into preceding pilot hole, and middle template realizes basic fixed position.

[description of drawings]

Fig. 1 is the structural representation before the utility model matched moulds;

Structural representation when Fig. 2 is the utility model matched moulds;

Fig. 3 is the structural representation after the utility model die sinking;

Fig. 4 is the partial enlarged drawing of Fig. 3;

Fig. 5 is the vertical view of the middle template among Fig. 1.

Among the figure: the 1-pressure head, the 2-pull bar, the 3-cope match-plate pattern, 4-expects the chamber, 4a-expects chamber, 4b-injecting hole, 5-back-up ring; Template among the 6-, pilot hole before the 6a-, pilot hole behind the 6b-, 6c-nib, 7-frong guide column, 8-BB1,9-core rod; The 10-lower bolster, 11-backing plate, 12-base plate, the last hook of 13-, 13a-saddle, 13b-coupler body, 14-lower draw-bar; 15-type groove, 15a-type groove bosom, the most shallow place of 15b-type groove, 16-injection hole end face, 100-commutator segment, 101-compression molding product, 102-waste material.

[specific embodiment]

Through specific embodiment the utility model is done detailed introduction and explanation below in conjunction with accompanying drawing:

As shown in the figure, the commutator compression tool of the utility model, comprise cope match-plate pattern 3, middle template 6, lower bolster 10, backing plate 11, base plate 12, on link up with 13, lower draw-bar 14, core rod 9, material chamber 4, pressure head 1, pull bar 2, frong guide column 7 and BB1 8; Material chamber 4 is in the underside setting of cope match-plate pattern 3, and sliding and be articulated on the pull bar 2 in material chamber 4, is fixed with back-up ring 5 in the bottom of pull bar 2; Through back-up ring 5, the upwards movable of material chamber 4 spurred by pull bar 2, and the top of pull bar 2 is fixedly connected with cope match-plate pattern 3; Pressure head 1 fixed installation in the bottom of cope match-plate pattern 3, the material chamber 4a of pressure head 1 and material chamber over against, the base plate of material chamber is provided with 32 injecting hole 4b of proper alignment; Last hook 13 is in the sides fixed installation of material chamber 4, on link up with 13 bottom inside and have the saddle 13a that middle template 6 is held, the outside has coupler body 13b; In template 6 is movable is provided with, middle template 6 is provided with 32 nib 6c of pilot hole 6b and proper alignment behind two the preceding pilot hole 6a, two, two preceding pilot hole 6a are corresponding with two frong guide columns 7; Pilot hole 6b is corresponding with two BB1s 8 after two, the rear side hole wall opening of back pilot hole 6b, and the setting height(from bottom) of frong guide column 7 is lower than the setting height(from bottom) of BB1 8; 32 nib 6c of proper alignment and said injecting hole 4b, core rod 9 quantity are identical and corresponding one by one; Core rod 9 and front and back guide pillar 7,8 fixedly install at lower bolster 10, and in base plate 12 fixed installations, said lower draw-bar 14 is in base plate 12 fixed installations through said backing plate 11 for lower bolster 10; The effect of lower draw-bar is; When improper situation the material chamber occurs and is stuck on the pull bar, draw through the hook of lower draw-bar coupler body last hook coupler body, will expect that the chamber leaves behind from pull bar; Bottom surface at material chamber base plate; The injection hole end face 16 of each injecting hole all offers type groove 15; Type groove 15 has the contour curve that coincide with moulding commutator top end shape and stretch into the commutator endoporus; The distance that type groove 15 stretches into the commutator endoporus is 1.8mm, i.e. difference in height between type groove bosom 15a (corresponding commutator top forming surface A) and the most shallow 15b of place of type groove (the direct acting forming surface B of corresponding injection hole end face), the most shallow 0.7mm of place of injection hole end face 16 a little higher than type grooves.

The utility model is performed such work: cope match-plate pattern 3 is in the fixed installation of the head of press, and lower platen 12 is installed in the stationary table of press, carry out compression moulding before; Add the material chamber 4a of pan feeding chamber to the plastic of appropriate amount, the nib 6c of template during the commutator segment 100 of accomplishing screening inserts, in template 6 keep flat the progressive die tool and hold (template is by 7,8 basic fixed positions of front and back guide pillar at this moment) by the saddle 13a of last hook; Press action then, mould matched moulds (shown in Figure 2), material 4 bottom surfaces, chamber and middle template 6 upper surfaces are adjacent to; Middle template 6 lower surfaces and lower bolster 10 upper surfaces are adjacent to, and plastic is heated, and pressure head 1 gets into material chamber 4a extruding plastic simultaneously; The nib 6c of heated plastic template from injecting hole 4b is injected into, control matched moulds time, press head return then; After moving a segment distance in the mould die sinking, cope match-plate pattern 3 and pull bar 2, pull bar 2 drives on the material chambers 4 and moves; Material 4 bottom surfaces, chamber and middle template 6 upper surfaces disengage, and injection hole end face 16 leaves the forming surface B that gos deep into the commutator endoporus, and pouring head breaks off; Though the pouring head that breaks off this moment can to this forming surface B cause certain draw bad, even glass fiber material can not have influence on the top forming surface A of commutator; Thereby effectively guarantee the compression molding quality of commutator, along with moving a segment distance on the material chamber 4, the hook 13 of going up that is fixed on material chamber side begins to move on the template 6 in the drive; So middle template 6 lower surfaces and lower bolster 10 upper surfaces disengage, compression molding product 101 deviates to realize automatic demoulding from core rod 9, at last when die sinking put in place (shown in Figure 3); Middle template 6 taken out from mould get final product, the waste material 102 as for staying in material chamber, material chamber and the injecting hole gets final product through sending needle plate that it is ejected.Above-mentioned whole operation process is very easy, has both reduced labour intensity, has improved production efficiency again.Compared with prior art, the utlity model has substantive distinguishing features and progress.

Claims

1. commutator compression tool is characterized in that: compression tool comprises cope match-plate pattern (3), middle template (6), lower bolster (10), base plate (12), goes up hook (13), core rod (9), material chamber (4), pressure head (1), pull bar (2) and front and back guide pillar (7,8), expects the underside setting of chamber (4) at cope match-plate pattern (3); Slide and be articulated on the pull bar (2) in material chamber (4); The upwards movable of material chamber spurred by pull bar, and pull bar (2) is fixedly connected with cope match-plate pattern (3), and pressure head (1) is in the fixed installation of the bottom of cope match-plate pattern (3); Pressure head (1) with the material chamber material chamber (4a) over against; The base plate of material chamber is provided with the injecting hole (4b) of arrangement, and last hook (13) is in the side fixed installation of material chamber (4), and the bottom of last hook (13) has the saddle (13a) that middle template (6) is held; Middle template (6) is movable to be provided with; In template (6) be provided with before and after the nib (6c) of pilot hole (6a, 6b) and arrangement, front and back pilot hole (6a, 6b) is corresponding with front and back guide pillar (7,8), the nib of arrangement (6c) and injecting hole (4b), core rod (9) quantity are identical and corresponding one by one; Core rod (9) and front and back guide pillar (7,8) fixedly install at lower bolster (10), and lower bolster (10) fixedly mounts at base plate (12).

2. commutator compression tool according to claim 1; It is characterized in that: in the bottom surface of material chamber (4) base plate; The injection hole end face (16) of each injecting hole all offers type groove (15), and type groove (15) has the contour curve that coincide with moulding commutator top end shape and stretch into the commutator endoporus.

3. commutator compression tool according to claim 1; It is characterized in that: middle template (6) is provided with pilot hole (6b) behind two preceding pilot holes (6a) and two; The rear side hole wall opening of back pilot hole (6b), the setting height(from bottom) of frong guide column (7) is lower than the setting height(from bottom) of BB1 (8).