CN108819136B - Injection mold for automobile fuel rail - Google Patents
Injection mold for automobile fuel rail Download PDFInfo
- Publication number
- CN108819136B CN108819136B CN201810984899.3A CN201810984899A CN108819136B CN 108819136 B CN108819136 B CN 108819136B CN 201810984899 A CN201810984899 A CN 201810984899A CN 108819136 B CN108819136 B CN 108819136B
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- Prior art keywords
- core
- sliding block
- fixed
- core pulling
- pulling
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- 239000000446 fuel Substances 0.000 title claims abstract description 36
- 238000002347 injection Methods 0.000 title claims abstract description 25
- 239000007924 injection Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 239000000498 cooling water Substances 0.000 claims description 22
- 239000005457 ice water Substances 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 18
- 238000001746 injection moulding Methods 0.000 abstract description 17
- 238000012797 qualification Methods 0.000 abstract description 3
- 238000003860 storage Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 27
- 238000003466 welding Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The injection molding die for the automobile fuel rail disclosed by the invention can realize injection molding of the automobile fuel rail in the same pair of dies, optimize the procedure links of production of the automobile fuel rail, reduce the procedure steps of production, greatly improve the qualification rate of products, and avoid secondary pollution in the storage and transportation processes caused by separate production of parts in the traditional process. In addition, in the core pulling action process of the first sliding block, the piston rod is not moved, the cylinder body is pushed to move backwards through the reaction force of the piston rod, and the cylinder body drives the ultra-long core pulling insert to move backwards through the core pulling seat, so that corresponding core pulling action is completed. The first core-pulling mechanism and the second core-pulling mechanism can be used for pulling the core of the mould with complex space layout, so that the overlength core pulling and the using space of the injection mould can be saved to the greatest extent, the injection mould can be produced on a smaller injection moulding machine, the using range of the injection mould is effectively improved, the production energy consumption is reduced, and the occupied space of a production field is saved.
Description
Technical Field
The invention relates to an injection mold, in particular to an injection mold for an automobile fuel rail.
Background
The injection mold is widely applied to injection production of plastic products. The automobile fuel rail is an injection molded product and is generally composed of three parts, namely a fuel rail main body, a main body small end welding cover and a main body large end welding cover, and fig. 1 is a structural exploded view of a common automobile fuel rail. In fig. 1,1 is a track main body, 2 is a main body small end welding cover, 3 is a main body large end welding cover, 4 is a welding position of the main body small end welding cover 2, 5 is a welding position of the main body large end welding cover 3, 6 and 7 are two track mounting plates of the track main body on an automobile engine, the two track mounting plates are respectively arranged on two sides of the track main body in the length direction through track mounting holes 8, and the central lines of the track mounting holes 8 on the two track mounting plates are inclined with the central lines of the track main body in the length direction. Because the automobile fuel rail has extremely high requirements on cleanliness and precision, in order to prevent secondary pollution caused by production and storage of all parts in different places, three parts, namely a fuel rail main body, a main body small end welding cover and a main body large end welding cover, are required to be put into a pair of moulds for injection molding production respectively, and then are welded together immediately in a dust-free and constant-temperature environment, so that the production process is relatively complex. The three parts have larger shape and size difference, especially the inner pipeline designed along the length direction of the oil rail main body is long and narrow, particularly thin and long loose cores are needed, and the two oil rail mounting plates of the oil rail main body have special structures, so that great difficulty is brought to the design of the mould.
Disclosure of Invention
The invention aims to solve the technical problem of providing the injection mold for the automobile fuel rail, which aims at overcoming the defects of the prior art, can realize the injection production of the automobile fuel rail in the same pair of molds and saves the mold space.
The technical scheme adopted for solving the technical problems is as follows: the injection mold comprises a movable mold plate assembly and a fixed mold plate assembly, wherein the movable mold plate assembly comprises a movable mold plate, mold legs and a movable mold bottom plate which are arranged up and down, the top end of the movable mold plate is provided with a movable mold core, the top end of the movable mold core is provided with a first cavity, an ejection mechanism is arranged between the movable mold plate and the movable mold bottom plate, the ejection mechanism comprises a plurality of ejector pins, ejector pin fixing plates and ejector pin bottom plates, the ejector pin bottom plates are arranged above the movable mold bottom plates, the ejector pin fixing plates are superposed on the ejector pin bottom plates, each ejector pin is simultaneously arranged on the ejector pin fixing plates, the movable mold plate and the movable mold core in a penetrating mode, the fixed mold plate assembly comprises a fixed mold plate, the top end of the fixed mold plate is provided with a fixed mold core, the top end of the fixed mold core is provided with a second cavity, when the mold is closed, the movable mold plate assembly is reversely buckled on the fixed mold plate assembly, the first cavity and the second cavity form a mold cavity, the mold cavity is connected with a mold pouring system, the mold cavity is matched with the shape of an automobile fuel rail, the upper part of the movable mold plate is provided with a first core pulling mechanism and a second core pulling mechanism, the first core pulling mechanism comprises an oil cylinder, a first sliding block, an ultra-long core pulling insert and a core pulling seat, a sliding rail arranged along the length direction of the mold cavity is fixed on the movable mold plate, the first sliding block is slidably assembled on the sliding rail, the core pulling seat is fixed on the first sliding block, one end of the ultra-long core pulling insert is fixed on the core pulling seat, the other end of the ultra-long core pulling insert stretches into the mold cavity to pull the core, the cylinder body of the oil cylinder is fixed on the first sliding block, an oil way joint is connected to the cylinder body of the oil cylinder, the axis of a piston rod of the oil cylinder is parallel to the axis of the ultra-long core-pulling insert, a connecting block is fixed at the front end of the piston rod of the oil cylinder, the connecting block is fixed on a fixed base, and the fixed base is fixed on the movable template; the second core pulling mechanism comprises a second sliding block, two core pulling sliding pins, a sliding pin base and a limit bolt, wherein a plurality of inclined guide pillar installation holes which are obliquely arranged are formed in the second sliding block, a plurality of inclined guide pillars which correspond to the inclined guide pillar installation holes one by one are fixed on the fixed die plate, the sliding pin base is slidably overlapped on the movable die plate, the second sliding block is slidably overlapped on the sliding pin base, the axis of the limit bolt is perpendicular to the length direction of the die cavity, the limit bolt comprises a screw cap, a polish rod part and a thread part which are integrally arranged in the front and the back, the screw cap plays a limit role on the movement of the second sliding block, the thread part penetrates through the second sliding block and is in threaded connection with the sliding pin base, each sliding pin obliquely penetrates through the die cavity and the movable die core and is fixedly connected with the sliding pin base, and the outer diameter, the inclination and the distance of the two sliding pins are identical to the two oil installation holes on the length direction sides of the automobile fuel rail.
According to the injection mold for the automobile fuel rail, the core pulling action after injection molding is realized through the first core pulling mechanism and the second core pulling mechanism. When the mold is closed, the movable mold plate assembly is reversely buckled on the fixed mold plate assembly, the first cavity and the second cavity form a mold cavity, and simultaneously, a plurality of inclined guide posts on the fixed mold plate are respectively inserted into a plurality of inclined guide post mounting holes on the second sliding block, so that injection molding of the automobile fuel rail in the same pair of molds can be realized. After injection molding, when the mold is opened, the second core pulling mechanism works, the second sliding block is driven to move outwards through the inclined guide posts, when the second sliding block moves to be in contact with the nuts of the limit bolts, the second sliding block continues to move outwards, the limit bolts drive the sliding needle base to move outwards, and the sliding needle base drives the two core pulling sliding needles to move obliquely along the direction of the hole sites on the movable mold core, which are matched with the two oil rail mounting holes of the automobile fuel rail, so that the core pulling action of the second sliding block is completed. After that, the first core pulling mechanism works, hydraulic oil enters the oil cylinder through the oil way joint, forward thrust is applied to the piston rod, and as the piston rod is fixed on the movable template through the connecting block and the fixed base, the piston rod can generate a reaction force to act on the cylinder body of the oil cylinder, so that the cylinder body moves backwards and drives the first sliding block to move backwards along the sliding rail, and the core pulling seat drives the ultra-long core pulling insert to move backwards, and finally the core pulling action of the first sliding block is completed. After the two core pulling actions are completed, the injection molding part is ejected out by the ejection mechanism.
Preferably, the cooling mechanism comprises an ice water machine, a water inlet hole and a cooling water pipe, wherein the water inlet hole is fixed on the first sliding block, one end of the water inlet hole is externally connected with the water outlet end of the ice water machine, the other end of the water inlet hole is communicated with one end of the cooling water pipe, a central through hole is formed in the extra-long core-pulling insert, the other end of the cooling water pipe is inserted into the central through hole, the aperture of the central through hole is larger than the outer diameter of the cooling water pipe, an annular gap is formed between the extra-long core-pulling insert and the cooling water pipe, a water conveying channel is formed in the first sliding block, the annular gap is communicated with the water inlet end of the ice water machine through the water conveying channel, a plug is arranged at one end of the extra-long core-pulling insert, which extends into the die cavity, and an axial gap is formed between the plug and one end of the cooling water pipe, which is inserted into the central through hole. Cooling water from the ice water machine enters the cooling water pipe through the water inlet hole and is sprayed out from one end of the cooling water pipe inserted in the central through hole in a fountain form, and then flows back to the ice water machine for circulation through the annular gap and the water delivery channel. The cooling mechanism is beneficial to increasing the contact area of cooling water and the ultra-long core-pulling insert, timely taking away heat and playing a good role in cooling the ultra-long core-pulling insert.
Preferably, the upper end of the first sliding block is provided with an anti-collision protection block, and the fixed template is provided with a positioning hole matched with the anti-collision protection block. After the die is assembled, the anti-collision protection block is inserted into the positioning hole. The anti-collision protection block is matched with the positioning hole, so that the damage of the first sliding block caused by the fact that the die assembly is not in place can be avoided, and the die assembly operation is safe and reliable.
Preferably, a travel switch is mounted on the movable die plate and is used for detecting the travel of the ultra-long core-pulling insert in the die opening process.
Preferably, a stroke limiting block is fixed on the movable mould plate and used for limiting the stroke of the cylinder body of the oil cylinder.
Preferably, the number of the mold cavities is multiple, so that multiple products can be simultaneously injection molded, and the production efficiency is further improved.
Compared with the prior art, the invention has the following advantages: the injection molding die for the automobile fuel rail disclosed by the invention can realize injection molding of the automobile fuel rail in the same pair of dies, optimize the procedure links of production of the automobile fuel rail, reduce the procedure steps of production, greatly improve the qualification rate of products, and avoid secondary pollution in the storage and transportation processes caused by separate production of parts in the traditional process. In addition, in the core pulling action process of the first sliding block, the piston rod is not moved, the cylinder body is pushed to move backwards through the reaction force of the piston rod, and the cylinder body drives the ultra-long core pulling insert to move backwards through the core pulling seat, so that corresponding core pulling action is completed. The first core-pulling mechanism and the second core-pulling mechanism can be used for pulling the core of the mould with complex space layout, so that the overlength core pulling and the using space of the injection mould can be saved to the greatest extent (at least 50% of the space is saved), the injection mould can be produced on a smaller injection machine, the using range of the injection mould is effectively improved, the production energy consumption is reduced, and the occupied space of a production field is saved.
Drawings
FIG. 1 is an exploded view of a conventional automotive fuel rail;
FIG. 2 is an isometric view of a movable platen assembly in a pre-core-pulling embodiment;
FIG. 3 is a top view of the movable die plate assembly of the loose core front embodiment;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a schematic view showing the effect of the first core pulling mechanism after being installed in the embodiment;
FIG. 6 is an enlarged view of FIG. 5 at C;
FIG. 7 is an enlarged view of FIG. 5 at D;
FIG. 8 is a cross-sectional view B-B of FIG. 3;
FIG. 9 is a schematic view showing the effect of the second core pulling mechanism after being installed in the embodiment;
FIG. 10 is an isometric view of a stationary platen assembly in an example embodiment.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
The injection mold for the fuel rail of the automobile of embodiment 1, as shown in fig. 2 to 10, comprises a movable mold plate assembly and a fixed mold plate assembly, wherein the movable mold plate assembly comprises a movable mold plate 1, mold legs 11 and a movable mold bottom plate 12 which are arranged up and down, the top end of the movable mold plate 1 is provided with a movable mold core 13, the top end of the movable mold core 13 is provided with a first cavity 14, an ejection mechanism is arranged between the movable mold plate 1 and the movable mold bottom plate 12, the ejection mechanism comprises a plurality of ejector pins 30, ejector pin fixing plates 31 and ejector pin bottom plates 32, the ejector pin bottom plates 32 are arranged above the movable mold bottom plates 12, the ejector pin fixing plates 31 are superposed on the ejector pin bottom plates 32, each ejector pin 30 is simultaneously arranged on the ejector pin fixing plates 31, the movable mold plate 1 and the movable mold core 13 in a penetrating manner, the fixed mold plate assembly comprises a fixed mold plate 2, the top end of the fixed mold plate 2 is provided with a fixed mold core 21, the top end of the fixed mold core 21 is provided with a second cavity 22, and when the mold is closed, the first cavity 14 and the second cavity 22 form a mold cavity, in this embodiment, the number of the mold cavities is two, the mold cavities are connected with the mold casting system 23, the mold cavities are matched with the shape of the automobile fuel rail, a first core pulling mechanism and a second core pulling mechanism are arranged at the upper part of the movable mold plate 1, the first core pulling mechanism comprises an oil cylinder 41, a first sliding block 42, an ultra-long core pulling insert 43 and a core pulling seat 44, a sliding rail 15 arranged along the length direction of the mold cavities is fixed on the movable mold plate 1, the first sliding block 42 is slidably assembled on the sliding rail 15, the core pulling seat 44 is fixed on the first sliding block 42, one end of the ultra-long core pulling insert 43 is fixed on the core pulling seat 44, the other end of the ultra-long core pulling insert 43 extends into the mold cavities, the cylinder body of the oil cylinder 41 is fixed on the first sliding block 42, the cylinder body of the oil cylinder 41 is connected with an oil way joint 45, the axis of the piston rod of the oil cylinder 41 is parallel to the axis of the ultra-long core-pulling insert 43, a connecting block 46 is fixed at the front end of the piston rod of the oil cylinder 41, the connecting block 46 is fixed on a fixed base 47, and the fixed base 47 is fixed on the movable mould plate 1; the second core pulling mechanism comprises a second sliding block 51, two core pulling sliding pins 52, a sliding pin base 53 and a limit bolt 54, wherein a plurality of inclined guide pillar installation holes 55 which are obliquely arranged are formed in the second sliding block 51, a plurality of inclined guide pillars 24 which correspond to the inclined guide pillar installation holes 55 one by one are fixed on the fixed die plate 2, the sliding pin base 53 is slidably overlapped on the movable die plate 1, the second sliding block 51 is slidably overlapped on the sliding pin base 53, the axis of the limit bolt 54 is perpendicular to the length direction of a die cavity, the limit bolt 54 comprises a nut 56, a polished rod portion 57 and a threaded portion 58 which are integrally arranged front and back, the nut 56 plays a limit role in moving the second sliding block 51, the threaded portion 58 penetrates through the second sliding block 51 to be in threaded connection with the sliding pin base 53, each core pulling sliding pin 52 obliquely penetrates through the die cavity and the movable die core 13 to be fixedly connected with the sliding pin base 53, and the outer diameter, the inclination and the distance of the two core pulling sliding pins 52 are identical to the two oil rail installation holes on two sides of the length direction of an automobile fuel rail.
In embodiment 1, an anti-collision protection block 48 is mounted at the upper end of the first slider 42, and a positioning hole 25 adapted to the anti-collision protection block 48 is formed in the fixed mold plate 2; the movable die plate 1 is provided with a travel switch 16, and the travel switch 16 is used for detecting the travel of the ultra-long core-pulling insert 43 in the die opening process; a stroke stopper 17 is fixed to the movable die plate 1, and the stroke stopper 17 is used for restricting the stroke of the cylinder body of the oil cylinder 41.
The injection mold for an automotive fuel rail of embodiment 2 is different from embodiment 1 in that in embodiment 2, a cooling mechanism is provided on the first core pulling mechanism, the cooling mechanism includes an ice water machine (not shown in the drawing), a water inlet hole 61 and a cooling water pipe 62, the water inlet hole 61 is fixed on the first slider 42, one end of the water inlet hole 61 is externally connected with a water outlet end of the ice water machine, the other end of the water inlet hole 61 is communicated with one end of the second cooling water 62, a central through hole 40 is provided in the extra-long core pulling insert 43, the other end of the cooling water pipe 62 is inserted in the central through hole 40, the aperture of the central through hole 40 is larger than the outer diameter of the cooling water pipe 62, an annular gap 63 is formed between the extra-long core pulling insert 43 and the cooling water pipe 62, a water delivery channel 49 is provided in the first slider 42, the annular gap 63 is communicated with the water inlet end of the ice water machine through the water delivery channel 49, one end of the extra-long insert 43 extending into the mold cavity is provided with a core pulling plug 64, and an axial gap 65 is provided between the plug 64 and one end of the cooling water pipe 62 inserted in the central through hole 40.
When the mold is closed, the movable mold plate assembly is reversely buckled on the fixed mold plate assembly, the first cavity 14 and the second cavity 22 form a mold cavity, and simultaneously, a plurality of inclined guide posts 24 on the fixed mold plate 2 are respectively inserted into a plurality of inclined guide post mounting holes 55 on the second sliding block 51, so that injection molding of the automobile fuel rail in the same pair of molds can be realized. After injection molding, when the mold is opened, the second core pulling mechanism works, the second sliding block 51 is driven to move outwards through the inclined guide posts 24, when the second sliding block 51 moves to be in contact with the nuts 56 of the limit bolts 54, the second sliding block 51 continues to move outwards, the limit bolts 54 drive the sliding needle bases 53 to move outwards, and then the sliding needle bases 53 drive the two core pulling sliding needles 52 to move obliquely along the direction of the hole positions on the movable mold core 13, which are matched with the two oil rail mounting holes of the automobile fuel rail, so that the core pulling action of the second sliding block 51 is completed. After that, the first core pulling mechanism works, hydraulic oil enters the oil cylinder 41 through the oil way joint 45, forward thrust is applied to the piston rod, and as the piston rod is fixed on the movable template 1 through the connecting block 46 and the fixed base 47, a reaction force is generated by the piston rod and acts on the cylinder body of the oil cylinder 41, so that the cylinder body moves backwards and drives the first sliding block 42 to move backwards along the sliding rail 15, and the core pulling seat 44 drives the extra-long core pulling insert 43 to move backwards, and finally the core pulling action of the first sliding block 42 is completed. After the two core pulling actions are completed, the injection molding piece 7 is ejected out by the ejection mechanism.
The injection molding of the automobile fuel rail in the same pair of dies can be realized, the overlength loose cores and the using space of the injection molding can be saved to the greatest extent, the injection molding can be produced on a smaller injection molding machine, the procedure links of the production of the automobile fuel rail are optimized, the procedure steps of the production are reduced, and the qualification rate of products is greatly improved.
Claims (4)
1. The utility model provides an automobile fuel rail injection mold, includes movable mould board subassembly and cover half board subassembly, the movable mould board subassembly include movable mould board, mould foot and the movable mould bottom plate that set up from top to bottom, the top of movable mould board be provided with the movable mould core, the top of movable mould core be provided with first die cavity, the movable mould board with the movable mould bottom plate between be provided with ejection mechanism, ejection mechanism include a plurality of thimble, thimble fixed plate and thimble bottom plate, the thimble bottom plate set up the top of movable mould bottom plate, the thimble fixed plate superpose be in the thimble bottom plate on, every the thimble wear to establish simultaneously thimble fixed plate the movable mould board with the movable mould core on, the cover half board subassembly include the cover half board, the top of cover half board be provided with the cover half core, the top of cover half core be provided with the second die cavity, during the compound die, with the movable mould board subassembly back-off on the cover half board subassembly, first and the second die cavity that forms promptly, die system and die cavity, its characteristic lies in the die cavity links to each other: the mold cavity is matched with the shape of an automobile fuel rail, a first core pulling mechanism and a second core pulling mechanism are arranged at the upper part of the movable mold plate, the first core pulling mechanism comprises an oil cylinder, a first sliding block, an ultra-long core pulling insert and a core drawing seat, a sliding rail arranged along the length direction of the mold cavity is fixed on the movable mold plate, the first sliding block is slidably assembled on the sliding rail, the core pulling seat is fixed on the first sliding block, one end of the ultra-long core pulling insert is fixed on the core drawing seat, the other end of the ultra-long core pulling insert extends into the mold cavity, the cylinder body of the oil cylinder is fixed on the first sliding block, an oil way joint is connected to the cylinder body of the oil cylinder, the axis of a piston rod of the oil cylinder is parallel to the axis of the ultra-long core pulling insert, the front end of the piston rod of the oil cylinder is fixed on a fixed base, and the fixed base is fixed on a movable connecting block of the mold plate; the second core pulling mechanism comprises a second sliding block, two core pulling sliding pins, a sliding pin base and a limit bolt, wherein a plurality of inclined guide pillar mounting holes which are obliquely arranged are formed in the second sliding block, a plurality of inclined guide pillars which correspond to the inclined guide pillar mounting holes one by one are fixedly arranged on the fixed die plate, the sliding pin base is slidably overlapped on the movable die plate, the second sliding block is slidably overlapped on the sliding pin base, the axis of the limit bolt is perpendicular to the length direction of the die cavity, the limit bolt comprises a nut, a polished rod part and a threaded part which are integrally arranged in front and back, the nut plays a limit role on the movement of the second sliding block, the threaded part penetrates through the second sliding block and is in threaded connection with the sliding pin base, each sliding pin obliquely penetrates through the die cavity and the core pulling movable die core to be fixedly connected with the sliding pin base, and the outer diameter, the inclination and the distance of the two sliding pins are identical to the two mounting holes on two sides of the length direction of an automobile fuel rail; the cooling mechanism comprises an ice water machine, a water inlet hole and a cooling water pipe, wherein the water inlet hole is fixed on the first sliding block, one end of the water inlet hole is externally connected with the water outlet end of the ice water machine, the other end of the water inlet hole is communicated with one end of the cooling water pipe, a central through hole is formed in the overlong core-pulling insert, the other end of the cooling water pipe is inserted into the central through hole, the aperture of the central through hole is larger than the outer diameter of the cooling water pipe, an annular gap is formed between the overlong core-pulling insert and the cooling water pipe, a water conveying channel is formed in the first sliding block, the annular gap is communicated with the water inlet end of the ice water machine through the water conveying channel, one end of the overlong core-pulling insert, extending into the die cavity, is provided with a plug, an axial gap is formed between one end of the overlong core-pulling insert and the cooling water pipe, the axial gap is formed between one end of the overlong core-pulling insert and the central through hole, an anti-collision protection plate is mounted on the first sliding block, and the anti-collision protection plate is mounted on the first sliding block.
2. An automotive fuel rail injection mold as claimed in claim 1, wherein: and a travel switch is arranged on the movable mould plate and is used for detecting the travel of the ultra-long core-pulling insert in the mould opening process.
3. An automotive fuel rail injection mold as claimed in claim 1, wherein: the movable mould plate is fixedly provided with a stroke limiting block, and the stroke limiting block is used for limiting the stroke of the cylinder body of the oil cylinder.
4. An automotive fuel rail injection mold as claimed in claim 1, wherein: the number of the die cavities is multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984899.3A CN108819136B (en) | 2018-08-28 | 2018-08-28 | Injection mold for automobile fuel rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984899.3A CN108819136B (en) | 2018-08-28 | 2018-08-28 | Injection mold for automobile fuel rail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108819136A CN108819136A (en) | 2018-11-16 |
| CN108819136B true CN108819136B (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810984899.3A Active CN108819136B (en) | 2018-08-28 | 2018-08-28 | Injection mold for automobile fuel rail |
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| CN (1) | CN108819136B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109501166A (en) * | 2018-12-28 | 2019-03-22 | 青岛海泰科模具有限公司 | Injection mold core pulling elder generation fixed structure |
| CN109878038A (en) * | 2019-03-06 | 2019-06-14 | 台州市黄岩美鼎模具有限公司 | The split type core-pulling mechanism of tape travel switch |
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| CN209022384U (en) * | 2018-08-28 | 2019-06-25 | 宁波四维尔工业有限责任公司 | A kind of vehicle fuel track injection mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7381051B2 (en) * | 2006-01-24 | 2008-06-03 | Cheng Uei Precision Industry Co., Ltd. | Core-pulling mechanism and injection mold with the same |
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|---|---|---|---|---|
| CN104690911A (en) * | 2015-02-12 | 2015-06-10 | 浙江纺织服装职业技术学院 | Injection mold of composite core-pulling mechanism |
| CN104859111A (en) * | 2015-06-21 | 2015-08-26 | 张向荣 | Oil cylinder two-time parting core-pulling injection mould |
| CN108407231A (en) * | 2018-06-13 | 2018-08-17 | 乌鲁木齐九品芝麻信息科技有限公司 | A kind of cylinder ejector side action sliders component injection mold |
| CN209022384U (en) * | 2018-08-28 | 2019-06-25 | 宁波四维尔工业有限责任公司 | A kind of vehicle fuel track injection mold |
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| CN108819136A (en) | 2018-11-16 |
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