CN205058401U - A hinge means for dry type calibrating die - Google Patents

Abstract

The utility model discloses a hinge means for dry type calibrating die, including upper and lower hinge, be equipped with on the upper and lower hinge and be used for with the locking of the contained angle between the upper and lower hinge at the self -locking mechanism who is less than 90 angles, self -locking mechanism is including fixing locating pin and the spacing step at setting hinge both sides connecting plate top under on the connecting plate of last hinge both sides, spacing step site lies in fixed plate one side in round pin epaxial side and spacing step upper wall, goes up the spout that is equipped with the installation locating pin on the connecting plate of hinge both sides symmetrically, and the template makes under the dead weight effect and goes up the hinge when round pin axle retrograde rotation when the stock mould on, through the spout inner wall with the locating pin pressure on spacing step lateral wall, the realization is moved to the self -marketing of last hinge. Water, gas joint need not be dismantled when opening the stock mould, the operating efficiency can be improved.

Description

For the hinge means of dry-type stock mold

Technical field

The utility model relates to a kind of hinge means for the open and close of dry-type stock mold in extrusion die production process.

Background technology

In extrusion profile production process, the parison extruded by extrusion die needs under the effect of tractive force successively through sizing, refrigerating work procedures such as stock mould, vacuum cooled water tanks.When drawing some single armed section bars or the less section bar of section, needing dry-type stock mold to open, parison being put into the die cavity of stock mould mould board, thus realize the drawing-in motion to parison.For convenience of the unlatching of stock mould, the upper and lower template of dry-type stock mold generally adopts chain connection.For this employing chain connection stock mould, the opening angle formed between the upper and lower template after unlatching is greater than 90 degree.Upper and lower template sidewall due to stock mould is provided with multiple water for cooling parison, gas joint and water, feed channel, can produce mutual interference, easily damage water, gas joint and water, feed channel when stock mould opening angle is excessive.Therefore, need first will produce part water, the dismounting of gas joint of interference, just open cope match plate.Therefore, stock mould open operation is very inconvenient, but also can affect stock mould water, gas circuit unimpeded.

Summary of the invention

The purpose of this utility model is for the deficiencies in the prior art, a kind of hinge means for dry-type stock mold is provided, the opening angle of stock mould can be limited in water, gas joint and water on the upper and lower template sidewall of stock mould, feed channel can not produce the position of mutually interfering, to improve the operating efficiency of stock mould open operation.

For achieving the above object, the utility model have employed following technical scheme: for the hinge means of dry-type stock mold, comprises upper and lower hinge, described upper and lower hinge is frame-shaped construction, form with the connecting plate being positioned at both sides by being positioned at middle fixed head respectively, fixed head in the middle of upper and lower hinge has the connecting hole that template upper and lower with stock mould is connected, the connecting plate of upper and lower hinge both sides is hinged respectively by bearing pin, it is characterized in that: on, lower hinge be provided with for by, angle between lower hinge is locked in the self-locking mechanism being less than 90 ° of angles, described self-locking mechanism comprises the alignment pin be fixed on upper hinge two side connecting plate and the limited step being arranged on lower hinge two side connecting plate top, described limited step is positioned at above bearing pin and limited step upper wall is positioned at fixed head side, the connecting plate of upper hinge both sides is provided with symmetrically the chute installing alignment pin, the layout of described chute makes upper hinge when being rotated upwardly on rear side of self-locking angle α around bearing pin, alignment pin can along the downward landing of chute on limited step lower wall under Gravitative Loads, when stock mould cope match plate makes upper hinge around bearing pin counter-rotating under Gravitative Loads, by chute inwall, alignment pin is pressed on limited step sidewall, realize the self-marketing action to upper hinge.

When opening stock mould, operating personnel upwards lift cope match plate, make it to rotate around hinge, when upper hinge rotates to when being greater than the self-marketing angle [alpha] of setting, alignment pin is fallen on limited step lower wall, now put down cope match plate, cope match plate produces closure function power to upper hinge under the effect of deadweight, make upper hinge counter-rotating, by chute inwall, pressure is applied to alignment pin, alignment pin is pressed on limited step, thus realize hinge self-locking, cope match plate is made to remain on fixing opening angle, so that parison is put into the die cavity of stock mould mould board by operating personnel.During matched moulds, only need operating personnel to lift cope match plate, alignment pin is moved to limited step upper wall, putting down cope match plate.

Slide for convenience of alignment pin, described alignment pin is straight pin; The height of limited step is greater than the radius of alignment pin, is not more than the diameter of alignment pin; The circular arc wall that it is the center of circle that two upper and lower walls of limited step are respectively with bearing pin axle center; Chute is far away, to the distance at bearing pin center, the radius of upper and lower wall matches near-end diapire with limited step respectively.In the process that cope match plate lifts and locks, alignment pin slides along the upper and lower wall of limited step respectively, and positioning lock sliding process resistance is little, and slide steadily, positioning lock is not easy to wear.

For preventing alignment pin from surprisingly departing from self-locking position, the sidewall of limited step is provided with the circular groove with detent fit.

For ease of placing parison in the die cavity of mould board, when described alignment pin is pressed on limited step upper hinge relative to the self-locking angle α of lower hinge at 40 ° ~ 70 °.

In order to prevent cope match plate 4 in staff's maloperation situation, surmounting setting self-locking angle, to opposite side upset, the connecting plate of lower hinge is provided with and carries out spacing positive stop lug boss to the maximum anglec of rotation of upper hinge.

The beneficial effects of the utility model are: by upper, lower hinge arranges self-locking mechanism, upper hinge is rotated to self-locking angle along opening direction, alignment pin can drop on the limited step lower wall of lower hinge along chute, and alignment pin to be pressed on limited step thus hinge self-locking by means of the deadweight of cope match-plate pattern, by upper, angle between lower bolster be fixed on be less than 90 ° self-locking angle on, make, water on lower bolster or gas joint there will not be mutual interference, therefore, do not need when opening stock mould to dismantle water, gas joint, thus raising operating efficiency, also can not affect stock mould water simultaneously, gas circuit unimpeded, and hinge arrangement is simple, alignment pin slides steady, wear-resistant.

Accompanying drawing explanation

Fig. 1 is the utility model knot schematic diagram.

Fig. 2 is along A-A line sectional view in Fig. 1.

Fig. 3 is the right view of Fig. 1.

Fig. 4 is Fig. 2 sectional view in the on state.

Fig. 5 is stock mould structural representation in the on state.

In figure, the implication of label symbol is as follows:

1-upper hinge, 11-fixed head 111-connecting hole 12-connecting plate 121-chute 122-connecting plate lateral wall 13-alignment pin 131-stop nut

Hinge 21-fixed head 211-connecting hole 22-connecting plate 221-limited step lower wall 222-limited step 223-limited step upper wall 23-positive stop lug boss under 2-

3-bearing pin

4-cope match plate 41-water or gas joint

5-mould board 51-water or gas joint 52-die cavity

Detailed description of the invention

Below in conjunction with accompanying drawing, the technical scheme in the utility model embodiment is clearly and completely described.

As shown in Figure 1,2 and 3, the utility model comprises upper and lower hinge 1,2; Upper and lower hinge 1,2 is in frame-shaped construction, be made up of the connecting plate 12,22 being positioned at middle fixed head 11,21 and being positioned at both sides respectively, fixed head 11,21 in the middle of upper and lower hinge 1,2 has the connecting hole 111,211 that template 4,5 upper and lower with stock mould is connected, connecting plate 22 upper end of lower hinge 2 both sides embeds inside upper hinge two side connecting plate 12 respectively, and is hinged respectively by bearing pin 3 with the connecting plate 12 of upper hinge both sides.

On, lower hinge 1, 2 be provided with for by, lower hinge 1, angle between 2 is locked in the self-locking mechanism that angle is less than 90 °, described self-locking mechanism comprises the alignment pin 13 be fixed on upper hinge two side connecting plate 12 and the limited step 222 being arranged on lower hinge two side connecting plate 22 top, described limited step 222 is positioned at above bearing pin 3 and limited step upper wall 223 is positioned at fixed head 21 side, the connecting plate 12 of upper hinge both sides is provided with symmetrically the chute 121 installing alignment pin 13, described chute 121 can in be horizontally disposed with or to away from the downward-sloping setting in fixed head 22 side, make upper hinge 1 when being rotated upwardly to self-locking angle α rearward position around bearing pin 3, alignment pin 13 can along chute 121 landing downwards on limited step lower wall 221 under Gravitative Loads, when stock mould cope match plate 4 makes upper hinge 1 around bearing pin 3 counter-rotating under Gravitative Loads, namely as Fig. 4, shown in 5 during position, by chute 121 inwall, pressure is applied to alignment pin 13, alignment pin 13 is pressed on limited step 222, thus realize hinge self-locking, cope match plate 4 is made to remain on the obliquity of setting, so that parison is put into the die cavity 52 of stock mould mould board 5 by operating personnel.

Slide for convenience of alignment pin, described alignment pin 13 is straight pin; The height of limited step 222 is greater than the radius of alignment pin 13, is not more than the diameter of alignment pin 13; The circular arc wall that it is the center of circle that two upper and lower walls 223,221 of limited step are respectively with bearing pin 3 axle center; Chute 121 is far away, to the distance at bearing pin 3 center, the radius of upper and lower wall 223,221 matches near-end diapire with limited step respectively.In the process that cope match plate 4 lifts and locks, alignment pin 13 slides along the upper and lower wall 223,221 of limited step respectively, and positioning lock sliding process resistance is little, and slide steadily, alignment pin is not easy to wear.

When opening stock mould, operating personnel upwards lift cope match plate 4, make it to rotate around hinge, be arranged on the alignment pin 13 in upper hinge chute 121 to slide along the limited step upper wall 223 at lower hinge two side connecting plate 22 top, see Fig. 4, Fig. 5, when upper hinge 1 rotates to during slightly larger than the self-locking angle α set, alignment pin 13 is fallen on lower wall 221 by limited step upper wall 223, now put down cope match plate 4, cope match plate 4 produces closure function power to upper hinge 1 under the effect of deadweight, chute 121 inwall applies pressure to alignment pin 13, alignment pin 13 is pressed on limited step 222 sidewall, thus cope match plate 4 is limited on required enable possition.Because the angle now between upper and lower template 4,5 is less than 90 °, therefore, water on upper and lower template 4,5 sidewall is arranged on or gas joint 41,51 can not touch mutually.During matched moulds, only need operating personnel to pick up cope match plate 4, then alignment pin 13 is moved to limited step upper wall 223, then put down cope match plate 4, alignment pin 13 slides along limited step upper wall 223 to the far-end of chute 121 simultaneously.

For preventing under stock mould opening, staff's maloperation makes alignment pin 13 depart from limited step 222 and cause unexpected matched moulds, limited step 222 sidewall can be arranged to the circular groove coordinated with alignment pin 13, departs from limited step 222 to prevent alignment pin 13 under self-locking state.

For ease of placing parison in the die cavity 52 of mould board 5, when described alignment pin 13 is pressed on limited step 222, upper hinge 1 should at 40 ° ~ 70 ° relative to the self-locking angle α of lower hinge 2.

Overturn to opposite side surmounting setting self-locking angle for preventing cope match plate 4 in staff's maloperation situation, make the water, the gas joint hitting ground that are fixed on cope match plate 4 opposite side, the connecting plate 22 of lower hinge 2 is provided with and carries out spacing positive stop lug boss 23 to the maximum anglec of rotation of upper hinge 1, described positive stop lug boss 23 is fixed on below the bearing pin 3 of the connecting plate 22 of lower hinge both sides, when cope match plate 4 overturns to opposite side, the connecting plate lateral wall 122 of upper hinge 1 rotates to below and withstands on limited step 23, and cope match plate 4 is remained on maximum flip angle.

Claims (5)

1., for the hinge means of dry-type stock mold, comprise upper and lower hinge (1,2); Described upper and lower hinge (1,2) is in frame-shaped construction, be made up of the connecting plate (12,22) being positioned at middle fixed head (11,21) and being positioned at both sides respectively, fixed head (11,21) in the middle of upper and lower hinge (1,2) has the connecting hole (111,211) that template upper and lower with stock mould (4,5) is connected, the connecting plate (12,22) of upper and lower hinge both sides is hinged respectively by bearing pin (3); it is characterized in that: on, lower hinge (1,2) be provided with for by, angle between lower hinge is locked in the self-locking mechanism being less than 90 ° of angles, described self-locking mechanism comprises the alignment pin (13) be fixed on upper hinge two side connecting plate (12) and the limited step (222) being arranged on lower hinge two side connecting plate (22) top, described limited step (222) is positioned at bearing pin (3) top and limited step upper wall (223) is positioned at fixed head (21) side, the connecting plate (12) of upper hinge both sides is provided with symmetrically the chute (121) installing alignment pin (13), the layout of described chute (121) makes upper hinge (1) when being rotated upwardly on rear side of self-locking angle α around bearing pin (3), alignment pin (13) can along chute (121) landing downwards on limited step lower wall (221) under Gravitative Loads, when stock mould cope match plate (4) makes upper hinge (1) around bearing pin (3) counter-rotating under Gravitative Loads, by chute (121) inwall, alignment pin (13) is pressed on limited step (222) sidewall, realize the self-marketing action to upper hinge (1).

2. the hinge means for dry-type stock mold according to claim 1, is characterized in that: described alignment pin (13) is straight pin; The height of limited step (222) is greater than the radius of alignment pin (13), is not more than the diameter of alignment pin (13); It is the circular arc wall in the center of circle that two upper and lower walls (223,221) of limited step (222) are respectively with bearing pin (3) axle center; Chute (121) is far away, to the distance at bearing pin (3) center, the radius of upper and lower wall (223,221) matches near-end diapire with limited step respectively.

3. the hinge means for dry-type stock mold according to claim 2, is characterized in that: the sidewall of limited step (222) is provided with the circular groove coordinated with alignment pin (13).

4. the hinge means for dry-type stock mold according to claim 1, is characterized in that: described alignment pin (13) be pressed in limited step (222) upper time upper hinge (1) relative to the self-locking angle α of lower hinge (2) at 40 ° ~ 70 °.

5. the hinge means for dry-type stock mold according to claim 1, is characterized in that: the connecting plate (22) of lower hinge is provided with the positive stop lug boss (23) spacing to upper hinge (1) the maximum anglec of rotation.