CN221391988U - Lower die assembly of water pump shell - Google Patents
Lower die assembly of water pump shell Download PDFInfo
- Publication number
- CN221391988U CN221391988U CN202322433533.6U CN202322433533U CN221391988U CN 221391988 U CN221391988 U CN 221391988U CN 202322433533 U CN202322433533 U CN 202322433533U CN 221391988 U CN221391988 U CN 221391988U
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- sliding block
- fixed
- fixed die
- injection molding
- fixedly connected
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000001746 injection moulding Methods 0.000 claims abstract description 45
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000003921 oil Substances 0.000 claims description 28
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims 4
- 229920003023 plastic Polymers 0.000 claims 4
- 238000000465 moulding Methods 0.000 claims 3
- 238000005086 pumping Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a lower die assembly of a water pump shell, which comprises a fixed die set, wherein the fixed die set comprises a fixed die holder and a fixed die holder positioned in the fixed die holder, a lower fixed die cavity is arranged on the fixed die holder, a left demolding assembly, a right demolding assembly, a front demolding assembly and a rear demolding assembly are connected around the fixed die holder in a sliding manner, the right demolding assembly comprises a first oil cylinder, a right sliding block and a right die holder which are fixed on the side edge of the fixed die holder, a push rod of the first oil cylinder is fixedly connected with one side of the right sliding block, an injection molding base matched with the bottom of an injection molding nozzle is arranged above the right sliding block, a liquid outlet is arranged on the side edge of the injection molding base, the right die holder is fixedly connected with the other side of the right sliding block, and injection molding liquid is guaranteed to flow into the bottom of the lower fixed die cavity from the upper side of the lower fixed die cavity after flowing along the upper surface of the right sliding block and the upper surface of the injection molding base during die assembly, and the right die holder is in a sliding manner and is inserted on the side edge of the fixed die holder. The structure adopts the feeding from the upper end surface point of the lower die, and finally ensures the surface smoothness of the finished product.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to a lower die assembly of a water pump shell.
Background
In the field of automotive technology, many parts, such as water pump housings, motor housings, oil pump housings, fan clutches, engine housings, rocker arm housings, etc., are made by injection molding.
In the current injection molding mode, when the mould is closed, an injection nozzle above a movable mould is inserted into a fixed mould, injection molding liquid slowly flows into a mould cavity from the side edge inside the fixed mould, namely the side edge of the injection molding bottom of a product, and the later-stage demoulding adopts a lower ejection mode to carry out demoulding, so that in the injection molding process, the injection molding is carried out in a mode of slowly upwards moving from the bottom, and for processing a water pump shell shown in fig. 1, particularly the water pump shell is of a rectangular structure and has a relatively deep thickness, if the structure is adopted, the forming surface is not smooth easily and the final cost quality is influenced, and meanwhile, the demoulding adopts the lower ejection demoulding due to the deep overall thickness, so that the demoulding efficiency is poor, and improvement is needed.
Disclosure of utility model
The utility model aims to provide a lower die assembly of a water pump shell, which solves the problems of unsmooth forming surface and low demoulding efficiency of the water pump shell with deeper processing thickness in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a lower die assembly of water pump shell, includes the fixed die group, the fixed die group includes the fixed die holder and is located the fixed die holder, be provided with down the fixed die cavity on the fixed die holder equal sliding connection all around of fixed die holder have the left drawing of patterns subassembly that is used for shaping the product left surface, be used for shaping the right drawing of patterns subassembly of product right side, be used for shaping preceding drawing of patterns subassembly in the product and be used for shaping the back drawing of patterns subassembly behind the product, right drawing of patterns subassembly including fixing first hydro-cylinder, right slider and the right die holder at fixed die holder side, the push rod of first hydro-cylinder with one side fixed connection of right slider, the top of right slider be provided with one with the injection molding base of injection molding mouth bottom complex, the side of injection molding base be provided with the liquid outlet, right die holder with the opposite side fixed connection of right slider, just the upper surface of injection molding base flushes with the upper surface of right slider, guarantees that the injection molding liquid flows into from the top of lower fixed die cavity down in the upper surface of right slider and the upper surface of base after the side of injection molding base, just the side of injection molding base is in the slip die holder.
Preferably, the left demolding assembly comprises a second oil cylinder, a left sliding block and a left mold base, wherein the second oil cylinder, the left sliding block and the left mold base are fixed on the side edge of the mold base, a pushing rod of the second oil cylinder is fixedly connected with one side of the left sliding block, the left mold base is fixedly connected with the other side of the left sliding block, and the left mold base is in sliding insertion connection with the side edge of the mold base.
Preferably, the front demolding assembly comprises a third oil cylinder, a front sliding block, an inclined sliding block and a front mold base, wherein the third oil cylinder, the front sliding block, the inclined sliding block and the front mold base are fixed on the front side of the fixed mold base, a pushing rod of the third oil cylinder is fixedly connected with one side of the front sliding block, the other side of the front sliding block is fixedly connected with the front side of the bottom of the inclined sliding block, a notch is formed in the fixed mold base, two symmetrical guide plates are arranged on two sides of the notch, inclined sliding grooves are formed in the inner sides of the guide plates, the inclined sliding block is slidably connected in the two inclined sliding grooves, the rear side of the inclined sliding block is fixedly connected with the front mold base, and an inclined drawing force rod is arranged on the inclined sliding block.
Preferably, the rear demolding assembly comprises a fourth oil cylinder, a rear sliding block and a rear mold base, wherein the fourth oil cylinder, the rear sliding block and the rear mold base are fixed on the side edge of the fixed mold base, a pushing rod of the fourth oil cylinder is fixedly connected with the rear end of the rear sliding block, the rear mold base is fixedly connected with the front end of the rear sliding block, and the rear mold base is in sliding connection with the rear of the fixed mold base.
Preferably, the upper surface of the injection molding base is flush with the upper surface of the right sliding block, two screw holes are formed in the bottom of the injection molding base, an upward protruding nozzle is arranged above the injection molding base, the liquid outlet is located at the side edge of the nozzle, and the nozzle is matched with the bottom of the injection molding nozzle.
Preferably, two silicon sheets are arranged above the right die holder at intervals.
Preferably, a first downward concave exhaust groove is formed on one side, close to the product, above the front die holder.
Preferably, a second concave exhaust groove is arranged on one side, close to the product, above the rear die holder.
Compared with the prior art, the utility model has the beneficial effects that:
1. The existing injection molding liquid injection mode from the bottom of the original lower die is replaced by feeding directly from the upper end surface point of the lower die, and the surface smoothness of a finished product is finally ensured;
2. this structure has set up four sides simultaneous separation formula drawing of patterns mode, further improves the drawing of patterns effect.
Drawings
FIG. 1 is a schematic view of a water pump housing according to the prior art;
Fig. 2 is a schematic diagram of the lower module of the water pump housing (with the water pump housing installed) in embodiment 1;
fig. 3 is a schematic diagram of a lower module of a water pump housing (with the water pump housing mounted) in embodiment 1;
FIG. 4 is a schematic view of the fixed module of FIG. 3 without the water pump housing installed;
FIG. 5 is a schematic view showing the bottom structure of the base in embodiment 1;
Fig. 6 is a schematic structural diagram of a right die holder in embodiment 1;
Fig. 7 is a schematic structural diagram of a rear die holder in embodiment 1;
FIG. 8 is a schematic view of the structure of the diagonal slider;
Fig. 9 is a schematic structural view of the front die holder.
In the figure: the mold comprises a fixed mold base 1, a fixed mold frame 2, a lower fixed mold cavity 3, a left demolding assembly 4, a right demolding assembly 5, a first oil cylinder 501, a right sliding block 502, a right mold base 503, a front demolding assembly 6, a third oil cylinder 601, a front sliding block 602, an inclined sliding block 603, a front mold base 604, a guide plate 605, an inclined sliding groove 606, an inclined drawing force rod 607, a rear demolding assembly 7, a fourth oil cylinder 701, a rear sliding block 702, a rear mold base 703, an injection molding base 8, a screw hole 801, a convex nozzle 802, a liquid outlet 9, a second oil cylinder 401, a left sliding block 402, a left mold base 403, a first exhaust groove 10, a second exhaust groove 11 and a silica gel sheet 12.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
Referring to fig. 2-9, the lower die assembly of a water pump housing provided in this embodiment includes a fixed die set, the fixed die set includes a fixed die holder 1 and a fixed die holder 2 located in the fixed die holder 1, a lower fixed die cavity 3 is disposed on the fixed die holder 2, a left demolding assembly 4 for forming a left side of a product, a right demolding assembly 5 for forming a right side of the product, a front demolding assembly 6 for forming a front of the product, and a rear demolding assembly 7 for forming a rear of the product are slidably connected around the fixed die holder 1, the right demolding assembly 5 includes a first cylinder 501, a right slider 502 and a right die holder 503 fixed on a side edge of the fixed die holder 1, a push rod of the first cylinder 501 is fixedly connected with one side of the right slider 502, an injection molding base 8 matched with a bottom of an injection molding nozzle is disposed above the right slider 502, a liquid outlet 9 is disposed on a side edge of the injection molding base 8, the right die holder 503 is fixedly connected with the other side of the right slider 502, and an upper surface of the injection molding base 8 and the upper surface of the right slider is guaranteed to flow into the cavity 3 along the upper side of the fixed die holder 2 from the upper side of the fixed die holder 502 to the lower die cavity 3.
Preferably, the left demolding assembly 4 comprises a second oil cylinder 401, a left sliding block 402 and a left mold seat 403 which are fixed on the side edge of the fixed mold seat 1, a push rod of the second oil cylinder 401 is fixedly connected with one side of the left sliding block 402, the left mold seat 403 is fixedly connected with the other side of the left sliding block 402, the left mold seat 403 is slidably inserted on the side edge of the fixed mold frame 2, and when the left demolding device works, the left mold seat 403 is driven to move to the left side through the second oil cylinder 401 and is matched with other three surfaces to realize quick demolding.
Preferably, the front demolding assembly 6 includes a third cylinder 601, a front slider 602, an inclined slider 603 and a front mold base 604 fixed on the front side of the fixed mold base 1, a push rod of the third cylinder 601 is fixedly connected with one side of the front slider 602, the other side of the front slider 602 is fixedly connected with the front side of the bottom of the inclined slider 603, a notch 101 is provided in the fixed mold base 1, two symmetrical guide plates 605 are provided on two sides of the notch 101, inclined sliding grooves 606 are provided on the inner side of the guide plates 605, the inclined slider 603 is slidably connected in the two inclined sliding grooves 606, the rear side of the inclined slider 603 is fixedly connected with the front mold base 604, an inclined drawing power rod 607 is provided on the inclined slider 603, the rear mold base 703 is slidably inserted on the rear side of the fixed mold base 2, the third cylinder 601 is driven to work, the front slider 602 is driven to move forward, and simultaneously under the power action of the inclined drawing power rod 607, the inclined slider 603 is driven to move upwards, and three other quick demolding surfaces are matched.
Preferably, the rear demolding assembly 7 comprises a fourth oil cylinder 701, a rear sliding block 702 and a rear mold seat 703 which are fixed on the side edge of the fixed mold seat 1, a push rod of the fourth oil cylinder 701 is fixedly connected with the rear end of the rear sliding block 702, the rear mold seat 703 is fixedly connected with the front end of the rear sliding block 702, the rear mold seat 703 is slidably inserted in the rear of the fixed mold seat 2, and when demolding is carried out, the fourth oil cylinder 701 is driven to work to drive the rear mold seat 703 to move backwards and realize quick demolding in cooperation with other three surfaces.
Preferably, the upper surface of the injection molding base 8 is flush with the upper surface of the right slider 502, two screw holes 801 are formed in the bottom of the injection molding base 8, an upward protruding nozzle 802 is arranged above the injection molding base 8, the liquid outlet 9 is located at the side edge of the nozzle 802, the nozzle 802 is matched with the bottom of the injection molding nozzle, and the upward protruding nozzle 802 is arranged above the injection molding base 8 to ensure that the nozzle 802 is inserted into the injection molding nozzle to avoid liquid leakage when the upper die and the lower die are clamped.
Preferably, two silicon sheets 12 are arranged above the right die holder 503 at intervals, and the silicon sheets 12 are arranged to realize convenient demoulding in the later period.
Preferably, a first air discharging groove 10 is arranged on one side, close to the product, above the front die holder 604, and the first air discharging groove 10 is arranged to realize quick air discharging during demoulding, so that demoulding is further facilitated.
Preferably, a second air exhausting groove 11 is arranged on one side, close to the product, above the rear die holder 703, and the second air exhausting groove 11 is arranged to realize rapid air exhausting during demolding, so that demolding is further facilitated.
The injection molding liquid is directly fed from the upper end surface point of the lower die to the original injection molding liquid injection mode from the bottom of the lower die, the surface smoothness of a finished product is finally ensured, when the injection molding nozzle on the upper die is matched with the injection molding base 8 in the die assembly process, the injection molding liquid is ensured to flow into the bottom of the lower fixed die cavity 3 from the upper side of the lower fixed die cavity 3 along the upper surface of the right sliding block 502 and the upper surface of the injection molding base 8 during die assembly, and the four-side simultaneous separation type demolding mode is arranged in the structure, so that the demolding effect is further improved. The application needs to be explained that the structure of the upper die of the water pump belongs to the conventional technology in the field, so that the structure is not specifically described.
It will be appreciated by persons skilled in the art that the above embodiments are provided for illustration only and not for limitation of the utility model, and that variations and modifications of the above described embodiments are intended to fall within the scope of the claims of the utility model as long as they fall within the true spirit of the utility model.
Claims (8)
1. The utility model provides a lower die assembly of water pump shell, includes the fixed die group, the fixed die group includes fixed die seat (1) and is located fixed die frame (2) in fixed die seat (1), be provided with down cover half chamber (3), its characterized in that on fixed die frame (2): the novel plastic injection molding die comprises a fixed die seat (1), wherein a left demolding component (4) for forming the left side face of a product, a right demolding component (5) for forming the right side face of the product, a front demolding component (6) for forming the front face of the product and a rear demolding component (7) for forming the rear face of the product are fixedly connected around the fixed die seat (1), the right demolding component (5) comprises a first oil cylinder (501), a right sliding block (502) and a right die seat (503) which are fixed on the side edge of the fixed die seat (1), a push rod of the first oil cylinder (501) is fixedly connected with one side of the right sliding block (502), an injection molding base (8) matched with the bottom of an injection molding nozzle is arranged above the right sliding block (502), a liquid outlet (9) is arranged on the side edge of the injection molding base (8), the right die seat (503) is fixedly connected with the other side of the right sliding block (502), and the upper surface of the injection molding base (8) is flush with the upper surface of the right sliding block (502), and the liquid flows into a die cavity (3) from the upper side edge of the fixed die seat (502) to the lower side edge of the fixed die seat (3) of the fixed die seat (2) along the upper surface of the right sliding die seat (502) during guaranteeing.
2. The lower die assembly of a water pump housing of claim 1, wherein: the left demolding assembly (4) comprises a second oil cylinder (401), a left sliding block (402) and a left mold base (403) which are fixed on the side edge of the fixed mold base (1), a pushing rod of the second oil cylinder (401) is fixedly connected with one side of the left sliding block (402), the left mold base (403) is fixedly connected with the other side of the left sliding block (402), and the left mold base (403) is in sliding connection with the side edge of the fixed mold frame (2).
3. The lower die assembly of a water pump housing of claim 2, wherein: the front demolding assembly (6) comprises a third oil cylinder (601), a front sliding block (602), an inclined sliding block (603) and a front mold base (604) which are fixed on the front side of a fixed mold base (1), wherein a pushing rod of the third oil cylinder (601) is fixedly connected with one side of the front sliding block (602), the other side of the front sliding block (602) is fixedly connected with the front side of the bottom of the inclined sliding block (603), a notch (101) is formed in the fixed mold base (1), two symmetrical guide plates (605) are arranged on two sides of the notch (101), inclined sliding grooves (606) are formed in the inner sides of the guide plates (605), the inclined sliding blocks (603) are slidably connected into the two inclined sliding grooves (606), and the rear side of the inclined sliding block (603) is fixedly connected with the front mold base (604), and inclined pumping force rods (607) are arranged on the inclined sliding blocks (603).
4. A lower die assembly for a water pump housing as claimed in claim 3, wherein: the rear demolding assembly (7) comprises a fourth oil cylinder (701), a rear sliding block (702) and a rear mold base (703) which are fixed on the side edge of the fixed mold base (1), a pushing rod of the fourth oil cylinder (701) is fixedly connected with the rear end of the rear sliding block (702), the rear mold base (703) is fixedly connected with the front end of the rear sliding block (702), and the rear mold base (703) is slidably inserted on the rear of the fixed mold frame (2).
5. The lower die assembly of a water pump housing as recited in claim 4, wherein: the upper surface of base (8) of moulding plastics flushes with the upper surface of right slider (502), just the bottom of base (8) of moulding plastics is provided with two screw holes (801), just the top of base (8) of moulding plastics is provided with bellied protruding mouth (802) that makes progress, liquid outlet (9) are located the side of protruding mouth (802), and
The male nozzle (802) is matched with the bottom of the injection nozzle.
6. The lower die assembly of a water pump housing of claim 5, wherein: two silicon sheets (12) which are arranged at intervals are arranged above the right die holder (503).
7. The lower die assembly of a water pump housing as recited in claim 6, wherein: a first downward concave exhaust groove (10) is arranged on one side, close to a product, above the front die holder (604).
8. The lower die assembly of a water pump housing as recited in claim 7, wherein: a second downward concave exhaust groove (11) is arranged on one side, close to the product, above the rear die holder (703).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322433533.6U CN221391988U (en) | 2023-09-08 | 2023-09-08 | Lower die assembly of water pump shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322433533.6U CN221391988U (en) | 2023-09-08 | 2023-09-08 | Lower die assembly of water pump shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221391988U true CN221391988U (en) | 2024-07-23 |
Family
ID=91941749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322433533.6U Active CN221391988U (en) | 2023-09-08 | 2023-09-08 | Lower die assembly of water pump shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221391988U (en) |
-
2023
- 2023-09-08 CN CN202322433533.6U patent/CN221391988U/en active Active
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