CN205185228U - Injection mold of automatically cropped disk runner in mould - Google Patents
Injection mold of automatically cropped disk runner in mould Download PDFInfo
- Publication number
- CN205185228U CN205185228U CN201521036916.9U CN201521036916U CN205185228U CN 205185228 U CN205185228 U CN 205185228U CN 201521036916 U CN201521036916 U CN 201521036916U CN 205185228 U CN205185228 U CN 205185228U
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- sleeve
- mould
- push rod
- needle plate
- back taper
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Abstract
The utility model discloses an injection mold of automatically cropped disk runner in mould, it includes mould and lower mould, goes up the mould and includes I -shaped board, movable mould board and moving die insert, the lower mould includes bottom plate, square iron, fixed die plate and fixed die insert. During operation, distance pole at first promote central push rod upward movement for draw the separation of material back taper and sleeve, after that under the drive of distance pole, central push rod and sleeve upward movement together, utilize on the sleeve the closed angle with the runner with mould a junction excision separation, faller of the last end drives the forming ejector pin and will mould and release from the die cavity. The utility model discloses simple structure has guaranteed that the disk runner does not have burr, deckle edge after the secondary excision, has lacked the mould stranger in process of production and will expect mouthful time of excision for reaching through the outer equipment of mould to improve production efficiency, reduced manufacturing cost. In addition, through being equipped with the locating hole in the excision portion to drawing the material back taper, can help sleeve and material handle to reset, reduce simultaneously and draw the intensity of amputating the face on the material back taper.
Description
Technical field
The utility model relates to mould manufacturing field, particularly relates to the injection mold of automatic shearing diaphragm gate in a kind of mould.
Background technology
Injection mo(u)lding is injected in the die cavity of definite shape in mould by thermoplastic cement material, after plastic material cooling curing, opens mould and the plastic cement machining object of solidification ejected, to obtain the method for products formed.Because injection molding forming method has, shaping expense is low, molding cycle is short, and forming process is simple and be easy to the feature such as plastic cement products of forming shape complexity, therefore manufactures field application at plastic cement products very general.At present in the production process of the moulding such as lock lid for outomobile oil tank, automobile rotary knob, common way is by cast gate eccentric setting, but its difficult quality guarantee of the moulding of eccentric setting, therefore also need to arrange diaphragm gate in inside.
Traditional diaphragm gate mould is after die sinking, and the plastic of injection mo(u)lding in mould always connects together with the solidifying material at cast runner place, automatically cannot be separated, and need plastic and solidifying material to cut off just can produce operational product.Way general at present increases to go cast gate operation by hand, utilizes manually plastic cutting and separating from solidifying material.On the one hand, above-mentioned action need is arranged work the operation of librarian use special equipment, causes that labour intensity is large, production efficiency is low; On the other hand, manual operation easily makes that the cast gate tangent plane of plastic is irregular, out-of-flatness, severe patient, and thin-gage goods also can be made to occur distortion.
Given this, how to design the injection mold of automatic shearing diaphragm gate in a mould, become those skilled in the art's problem demanding prompt solution.
Utility model content
For overcoming above-mentioned technical problem, the utility model provides the injection mold of automatic shearing diaphragm gate in a kind of mould, and it is simple that it has structure, and good forming effect, efficiency is high, the advantage that cost is low.
The utility model solves the technical scheme that its technical problem adopts: the injection mold of automatic shearing diaphragm gate in a kind of mould, it comprises upper die and lower die.
Wherein, patrix comprises the I-shaped plate, moving platen and the moving die insert that set gradually from top to bottom.Counterdie comprises the base plate, square iron, solid plate and the fixed die insert that set gradually from the bottom up, between moving die insert and fixed die insert, be formed with die cavity.
In the space that base plate, square iron and solid plate surround, end needle plate is installed, is fixed on the face needle plate above end needle plate, and is symmetricly set on the back stitching between face needle plate and solid plate.
Concrete, be provided with first step hole in the center of end needle plate, the middle part of distance rod is provided with distance rod ledge structure, and this ledge structure is placed in first step hole place.The lower end of above-mentioned distance rod is stretched out from the lower plane of end needle plate, the upper planes align of the other end and end needle plate, and contacts with center push rod.
On base plate, the position of corresponding distance rod offers resigning hole, and this resigning hole is used for the push rod upwardly distance rod of injection machine.
Face needle plate is provided with the second step hole for settling sleeve, this sleeve to be placed in this second step hole and upwards to extend, its lower end is provided with the sleeve ledge structure with the step surface matched in clearance in second step hole, and the upper end of this sleeve is also provided with the wedge angle for being excised by cast gate.
Face needle plate is also equiped with a composing type push rod, and this forming ejector pin is used for moulding to release from die cavity.
In addition, center push rod is installed in sleeve inner, is provided with the 3rd stepped hole in sleeve, and the lower end of center push rod is provided with the center push rod ledge structure with the step surface matched in clearance of the 3rd stepped hole, with drawing of handle of material, its upper end expects that back taper is connected.
Be provided with in the bottom of material handle and draw material back taper, this draws material back taper embed the sharp corner of sleeve upper end and abut against with center push rod.
During work, first distance rod promotes center push rod and moves upward, and makes to draw material back taper and sleeve to be separated, and realizes the once resecting to cast gate.Then, center push rod moves upward together with sleeve, and cast gate fully excises with plastic junction and is separated by the wedge angle on sleeve, realizes excising the secondary of cast gate.Finally, end needle plate moves upward and drives forming ejector pin to be released from die cavity by plastic.
As further improvement of the utility model, the above-mentioned material back taper that draws is made up of the cut portion of top and the abutting part of below.Sleeve with draw expect back taper mating surface on be arranged at intervals with one group of boss, accordingly, draw expect back taper cut portion on be provided with the one group locating hole corresponding with this boss.The effect of locating hole herein has 2 points, and one is help sleeve and the reset of expecting handle when mould matched moulds; Two is reduce the intensity of drawing and material back taper excising face, and when ensureing that center push rod promotes material handle, material handle is separated with sleeve.When distance rod promotion center push rod moves upward, first center push rod promotes to draw material back taper, makes to draw the cut portion of material back taper to be separated with sleeve, realizes the once resecting to diaphragm gate; When distance rod ledge structure moves to the lower plane of sleeve, distance rod continues up to move, and now sleeve moves upward together with center push rod, under the effect of sleeve upper end wedge angle, realizes the secondary excision of diaphragm gate.
As core component of the present utility model, i.e. a kind of structure realizing diaphragm gate when mould ejection and automatically excise, it comprises end needle plate, face needle plate, distance rod, center push rod, sleeve and material handle.Wherein, be provided with first step hole in the center of end needle plate, one end of distance rod is stretched out from the lower plane of end needle plate, the upper planes align of the other end and end needle plate, and contacts with center push rod.The middle part of this distance rod is provided with distance rod ledge structure, and this ledge structure is placed in first step hole place.Face needle plate is provided with the second step hole for settling sleeve, this sleeve is placed in this second step hole and also upwards extends, its lower end is provided with the sleeve ledge structure with the step surface matched in clearance in second step hole, and the upper end of this sleeve is also provided with the wedge angle for being excised by cast gate.Center push rod is installed in sleeve inner, is provided with the 3rd stepped hole in sleeve.The lower end of center push rod is provided with the center push rod ledge structure with the step surface matched in clearance of the 3rd stepped hole, and its upper end connects with material handle.Also be provided with in the bottom of material handle and draw material back taper, this draws material back taper embed the sharp corner of sleeve upper end and abut against with center push rod.During work, first distance rod promotes center push rod and moves upward, and makes to draw material back taper to depart from from sleeve, realizes the once resecting of diaphragm gate.Then center push rod moves upward together with sleeve, and cast gate excises with plastic junction and is separated by the wedge angle on sleeve, completes the secondary excision of diaphragm gate, guarantees the good separation of plastic and cast gate junction.
The utility model is compared with prior art, its advantage is: the utility model improves distance rod, center push rod, sleeve and material handle, first center push rod is promoted by distance rod, the once resecting to cast gate is completed while realizing drawing material back taper to be separated with sleeve, then drive center push rod by distance rod, sleeve moves together, realize sleeve and the secondary of cast gate is excised.The utility model structure is simple, and ensure that diaphragm gate impulse-free robustness, burr after secondary excision, has lacked mould in process of production and artificially and by mould external equipment will expect the time of mouth excision outward, thus improve production efficiency, reduced production cost.In addition, by expecting that the cut portion of back taper is provided with one group of locating hole to drawing, while helping sleeve to reset with material handle, can reduce the intensity of drawing and expecting back taper to excise face, guarantee material handle is separated with sleeve.
Accompanying drawing explanation
Below with reference to drawings and Examples, the utility model is described in detail.
Fig. 1 is the plastic schematic diagram with diaphragm gate.
Fig. 2 realizes the sectional view that diaphragm gate excises structure automatically when mould ejection.
Fig. 3 is the cross-sectional schematic of the utility model under matched moulds state.
Fig. 4 is the sectional view of the utility model under die sinking does not eject state.
Fig. 5 is the I place partial enlarged drawing of Fig. 4, and illustrate the matching relationship drawing material back taper and sleeve, center push rod in figure, L2 represents the height drawing and expect back taper.
Fig. 6 is II place's partial enlarged drawing of Fig. 4, illustrates distance rod, sleeve, position relationship between center push rod and each stepped hole in figure.
Fig. 7 is the stereogram of material handle.
Fig. 8 is the structural representation of sleeve.
Fig. 9 is the partial enlarged drawing of sleeve upper end, illustrates the position of gate depth L1 and wedge angle α in figure.
In figure, 1, end needle plate; 2, face needle plate; 3, distance rod; 4, center push rod; 5, sleeve; 6, handle is expected; 7, material back taper is drawn; 11, first step hole; 21, second step hole; 31, distance rod ledge structure; 41, center push rod ledge structure; 51, the 3rd stepped hole; 52, sleeve ledge structure; 53, wedge angle; 54, boss; 71, cut portion; 72, abutting part; 73, locating hole; 101, I-shaped plate; 102, moving platen; 103, moving die insert; 104, base plate; 105, square iron; 106, solid plate; 107, fixed die insert; 108, back stitching; 109, resigning hole; 110, forming ejector pin.
Detailed description of the invention
The following stated is only to preferred embodiment of the present utility model; not scope of the present utility model is limited; therefore under the prerequisite not departing from the utility model design spirit; those of ordinary skill in the art change or decoration the equivalence that structure described in the utility model, feature and principle are done, and all should fall in protection domain of the present utility model.
Embodiment,
As shown in Figure 1, the knob center of this plastic is provided with a diaphragm gate, and this diaphragm gate is arranged on the circle of Φ D.As shown in Figure 5, L2 represents the height drawing material back taper.As shown in Figure 9, Φ D1 represents the external diameter of sleeve sharp corner, and L1 represents the degree of depth of diaphragm gate, wedge angle α be for the ease of can be clean during mold work excision cast gate.
See also 2 to 8, the injection mold of automatic shearing diaphragm gate in a kind of mould, it comprises upper die and lower die.
Wherein, patrix comprises I-shaped plate 101, moving platen 102 and moving die insert 103.Counterdie comprises the base plate 104, square iron 105, solid plate 106 and the fixed die insert 107 that set gradually from the bottom up, between moving die insert 103 and fixed die insert 107, be formed with die cavity.
In the space that base plate 104, square iron 105 and solid plate 106 surround, end needle plate 1 and face needle plate 2 are installed, and are symmetricly set on the back stitching 108 between face needle plate 2 and solid plate 106.
Be provided with first step hole 11 in the center of end needle plate 1, face needle plate 2 is provided with second step hole 21, and sleeve inner is provided with the 3rd stepped hole 51, and first step hole 11, second step hole 21 and the 3rd stepped hole 51 are coaxially arranged.
The middle part of distance rod 3 is provided with distance rod ledge structure 31, and this ledge structure is placed in first step hole 11 place.One end of distance rod is stretched out from the lower plane of end needle plate 1, and its outreach is S1, the upper planes align of the other end and end needle plate 1, and contacts with center push rod 4.Distance on above-mentioned distance rod ledge structure 31 to end needle plate 1 between plane is S2.
Upwards extend in the second step hole 21 that sleeve 5 is placed in face needle plate 2, sleeve 5 lower end is provided with the sleeve ledge structure 52 with the step surface matched in clearance in second step hole 21, and the distance between the step surface in upper surface to the second step hole 21 of this sleeve ledge structure 52 is S4.Further, the diameter d 1 in first step hole 11 is greater than the diameter d 2 of the 3rd stepped hole 51.The wedge angle 53 for being excised by cast gate is also provided with in the upper end of sleeve 5.
It is inner that center push rod 4 is installed in sleeve 5, the lower end of center push rod 4 is provided with the center push rod ledge structure 41 with the step surface matched in clearance of the 3rd stepped hole 51, the lower plane of this center push rod ledge structure 41 flushes with the lower plane of face needle plate 2, on it plane to the 3rd stepped hole 51 step surface between distance be S3.The upper end of described center push rod 4 connects with material handle 6.
Between above-mentioned each distance, relation is as follows:
S4﹥L1；S1﹥S3≥S2﹥L2；
(S1-S2)﹥L1；d1﹥d2；
ΦD1+0.1mm≥ΦD≥ΦD1
Also be provided with in the bottom of material handle 6 and draw material back taper 7, this draws material back taper 7 embed wedge angle 53 place of sleeve 5 upper end and abut against with center push rod 4.This draws material back taper 7 to be made up of the cut portion 71 of top and the abutting part 72 of below.
Sleeve 5 with the mating surface of material handle 6 are arranged at intervals with one group of boss 54, accordingly, the cut portion 71 of drawing material back taper 7 are provided with the one group locating hole 73 corresponding with this boss.
On base plate 104, the position of corresponding distance rod 3 offers resigning hole 109, and the push rod of injection machine is matched by the bottom of resigning hole 109 with distance rod 3.Face needle plate 2 is also equiped with a composing type push rod 110, and this forming ejector pin 110 is for releasing moulding from die cavity.
During work, first distance rod promotes center push rod and moves upward, and makes to draw the cut portion of material back taper to be separated with sleeve, realizes the once resecting to diaphragm gate.Then center push rod moves upward together with sleeve, and cast gate excises with plastic junction and is separated by the wedge angle on sleeve, completes the secondary excision of diaphragm gate, guarantees the good separation of plastic and cast gate junction.
Its operating procedure is as follows:
Step 1: after mould die sinking, injection machine push rod advances.First injection machine push rod touches distance rod, and what distance rod touched is center push rod.After distance rod drives center push rod driven forward S2 distance, due to S2>L2 (drawing material back taper height), material back taper is drawn to be separated with sleeve.Meanwhile, the upper surface of distance rod ledge structure just pushes up the bottom surface of sleeve.
Step 2: injection machine push rod moves on (S1-S2) distance, distance rod drives sleeve to move ahead (S1-S2) distance.Due to (S1-S2) >L1 (gate thickness), cast gate well excises with plastic junction and is separated by the wedge angle on sleeve, and now distance rod bottom surface flushes with needle plate bottom surface, the end.
Step 3: now distance rod bottom surface flushes with needle plate bottom surface, the end, has pushed away on the end needle plate when injection machine push rod continues to move ahead, the push piece of this step drives forming ejector pin to be released in die cavity by plastic.
Claims (6)
1. the injection mold of automatic shearing diaphragm gate in mould, comprise upper die and lower die, described patrix comprises I-shaped plate, moving platen and moving die insert; Counterdie comprises the base plate, square iron, solid plate and the fixed die insert that set gradually from the bottom up, between moving die insert and fixed die insert, be formed with die cavity; It is characterized in that:
In the space that described base plate, square iron and solid plate surround, end needle plate is installed, is fixed on the face needle plate above end needle plate, and is symmetricly set on the back stitching between face needle plate and solid plate;
The center of needle plate of the described end is provided with first step hole, the middle part of distance rod is provided with the distance rod ledge structure being placed in first step hole place, one end of this distance rod is stretched out from the lower plane of end needle plate, the upper planes align of the other end and end needle plate, and contacts with center push rod;
On base plate, the position of corresponding distance rod offers resigning hole, face needle plate is provided with the second step hole for settling sleeve, this sleeve to be placed in this second step hole and upwards to extend, its lower end is provided with the sleeve ledge structure with the step surface matched in clearance in second step hole, and the upper end of this sleeve is also provided with the wedge angle for being excised by cast gate;
Center push rod is installed in sleeve inner, the 3rd stepped hole is provided with in sleeve, the lower end of center push rod is provided with the center push rod ledge structure with the step surface matched in clearance of the 3rd stepped hole, with drawing of handle of material, its upper end expects that back taper is connected, also be provided with in the bottom of material handle and draw material back taper, this draws material back taper embed the sharp corner of sleeve upper end and abut against with center push rod; Described needle plate is also equiped with a composing type push rod, this forming ejector pin is used for moulding to release from die cavity;
During work, first distance rod promotes center push rod and moves upward, and makes to draw material back taper to depart from from sleeve; Then under the drive of distance rod, center push rod moves upward together with sleeve, utilizes the wedge angle on sleeve to be excised with plastic junction by cast gate and is separated; Needle plate of the last end drives forming ejector pin to be released from die cavity by plastic.
2. the injection mold of automatic shearing diaphragm gate in mould as claimed in claim 1, it is characterized in that: described in draw material back taper be made up of the cut portion of top and the abutting part of below, sleeve with draw expect back taper mating surface on be arranged at intervals with one group of boss, accordingly, the cut portion of drawing material back taper is provided with the one group locating hole corresponding with this boss.
3. the injection mold of automatic shearing diaphragm gate in mould as claimed in claim 1, is characterized in that: the diameter d 2 of diameter d 1 ﹥ the 3rd stepped hole in described first step hole.
4. the injection mold of automatic shearing diaphragm gate in mould as claimed in claim 1, is characterized in that: described distance rod draws the height L2 of material back taper from the distance S3 >=distance rod ledge structure the outreach S1 ﹥ center push rod ledge structure of end needle plate lower plane between plane to the 3rd stepped hole step surface to the distance S2 ﹥ between plane on end needle plate.
5. the injection mold of automatic shearing diaphragm gate in mould as described in any one of Claims 1-4, is characterized in that: described distance rod is from the degree of depth L1 of the difference ﹥ diaphragm gate of the distance S2 between plane the outreach S1 and distance rod ledge structure to end needle plate of end needle plate lower plane.
6. the injection mold of automatic shearing diaphragm gate in mould as claimed in claim 5, is characterized in that: the degree of depth L1 of the distance S4 ﹥ diaphragm gate between the step surface in upper surface to the second step hole of described sleeve ledge structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521036916.9U CN205185228U (en) | 2015-12-10 | 2015-12-10 | Injection mold of automatically cropped disk runner in mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521036916.9U CN205185228U (en) | 2015-12-10 | 2015-12-10 | Injection mold of automatically cropped disk runner in mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205185228U true CN205185228U (en) | 2016-04-27 |
Family
ID=55778258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521036916.9U Withdrawn - After Issue CN205185228U (en) | 2015-12-10 | 2015-12-10 | Injection mold of automatically cropped disk runner in mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205185228U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105365170A (en) * | 2015-12-10 | 2016-03-02 | 昌辉精密模具（黄山）有限公司 | Injection mould capable of automatically cutting disk gate in mould |
-
2015
- 2015-12-10 CN CN201521036916.9U patent/CN205185228U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105365170A (en) * | 2015-12-10 | 2016-03-02 | 昌辉精密模具（黄山）有限公司 | Injection mould capable of automatically cutting disk gate in mould |
| CN105365170B (en) * | 2015-12-10 | 2017-07-28 | 昌辉精密模具（黄山）有限公司 | The injection mold of automatic shearing diaphragm gate in a kind of mould |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160427 Effective date of abandoning: 20170728 |
|
| AV01 | Patent right actively abandoned |