CN220946438U - Easily-demoulded traction rod die - Google Patents
Easily-demoulded traction rod die Download PDFInfo
- Publication number
- CN220946438U CN220946438U CN202322974177.9U CN202322974177U CN220946438U CN 220946438 U CN220946438 U CN 220946438U CN 202322974177 U CN202322974177 U CN 202322974177U CN 220946438 U CN220946438 U CN 220946438U
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- die core
- plate
- ejector
- die
- core base
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- 230000017525 heat dissipation Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a traction rod die easy to demould. The technical scheme adopted comprises the following steps: the upper die core assembly comprises a square upper die core base and an upper die core arranged in the upper die core base, the lower die core assembly comprises a square lower die core base and a cavity groove arranged on the lower die core base, a group of corresponding first ejection holes are arranged on the cavity groove of the lower die core base and the lower die plate, an ejector plate is arranged below the lower die plate, and a first ejector pin inserted into the first ejection holes is arranged on the ejector plate.
Description
Technical Field
The utility model belongs to the technical field of dies, and particularly relates to a traction rod die.
Background
The molded case circuit breaker is a circuit safety device capable of automatically cutting off current after the current exceeds a trip setting. Plastic housing refers to the use of plastic insulators as the housing of the device to isolate the conductors from each other and from the grounded metal parts. The molded case circuit breaker generally comprises a thermal magnetic trip unit, and various trip accessories such as thermal trip and magnetic trip are linked with each other through a traction rod. The drawbar is typically integrally injection molded from a drawbar injection mold. The structure of the traction rod injection mold comprises: the upper die core assembly comprises a square upper die core base and an upper die core arranged in the upper die core base, and the lower die core assembly comprises a square lower die core base and a cavity groove arranged on the lower die core base. When the upper die plate and the lower die plate are assembled, a traction rod cavity is formed between the upper die core and the cavity groove, and the traction rod is obtained after cooling by injecting liquid plastic into the traction rod cavity. The disadvantages are: after the die is opened, the traction rod in the cavity groove needs to be taken out by means of a tool, and the workpiece taking is inconvenient.
Disclosure of utility model
The utility model aims to solve the technical problem of providing an easy-to-demould traction rod die.
In order to solve the problems, the technical scheme adopted by the utility model comprises the following steps: the upper die core assembly comprises a square upper die core base and an upper die core arranged in the upper die core base, and the lower die core assembly comprises a square lower die core base and a cavity groove arranged on the lower die core base, and is characterized in that: the lower die core base is characterized in that a group of corresponding first ejection holes are formed in the die cavity groove of the lower die core base and the lower die plate, an ejector plate is arranged below the lower die plate, and a first ejector pin inserted into the first ejection holes is arranged on the ejector plate.
The easy-to-demold traction rod die is characterized in that: the ejector plate is characterized in that a lifting plate is arranged below the ejector plate, first ejector rods propping against the ejector plate are arranged at two ends of the lifting plate, and double-headed screws are arranged at the bottom of the lifting plate through nuts.
The easy-to-demold traction rod die is characterized in that: and second ejector rods propped against the upper template are arranged at four corners of the ejector plate.
The easy-to-demold traction rod die is characterized in that: the lower die core base is provided with four cavity grooves which are symmetrical in pairs, two opposite cavity grooves are communicated through a runner, a second ejector hole is formed in the middle of the runner, and a second ejector pin inserted into the second ejector hole is arranged on the ejector pin plate.
The easy-to-demold traction rod die is characterized in that: and a group of heat dissipation holes are formed in the upper template and the lower template.
The easy-to-demold traction rod die is characterized in that: guide posts are arranged at four corners of the upper template and the lower template.
The easy-to-demold traction rod die is characterized in that: the lower die core base is provided with a positioning groove in the middle, and the upper die core base is provided with a positioning protruding part matched with the positioning groove in a positioning way in the middle.
The easy-to-demold traction rod die has the advantages that: after the die is opened, the first ejector pin and the second ejector pin can automatically eject the traction rod in the cavity groove, so that the die is convenient to be removed.
The utility model will be described in further detail with reference to the drawings and the detailed description.
Drawings
FIG. 1 is a schematic diagram of the structure of an easy-to-release drawbar die of the present utility model;
FIG. 2 is a cross-sectional view of an easy-release drawbar die of the utility model;
FIG. 3 is a schematic view of the upper core assembly of the present utility model;
fig. 4 is a schematic view of the lower core assembly of the present utility model.
Detailed Description
As shown in fig. 1 to 4, the easy-to-release drawbar die of the utility model comprises an upper die plate 1, a lower die plate 2, an upper die core assembly 3 arranged in the upper die plate 1 and a lower die core assembly 4 arranged in the lower die plate 2. The upper core assembly 3 comprises an upper core base 5 having a square shape and an upper core piece 6 embedded within the upper core base 5. The lower core assembly 4 comprises a square lower core base 7 and a cavity groove 8 provided on the lower core base 7. When the upper die plate and the lower die plate are assembled, a traction rod cavity is formed between the upper die core and the cavity groove, and the traction rod is obtained after cooling by injecting liquid plastic into the traction rod cavity. The cavity groove 8 of the lower die core base 7 and the lower die plate 2 are provided with a group of corresponding first ejection holes 11, the number of the first ejection holes 11 is determined according to the specification of the traction rod, such as a 3P traction rod, and 6 first ejection holes 11 can be uniformly arranged. An ejector plate 12 is arranged below the lower die plate 2, a first ejector pin 13 inserted into the first ejector hole 11 is arranged on the ejector plate 12, and when the ejector plate 12 is lifted upwards, the top of the first ejector pin 13 penetrates out of the first ejector pin 13, so that a traction rod can be ejected out.
Preferably, a lifting plate 14 is arranged below the ejector plate 12, first ejector rods 15 propped against the ejector plate 12 are arranged at two ends of the lifting plate 14, and double-headed screws 16 are arranged at the bottom of the lifting plate 14 through nuts 9. The other end of the double-end screw 16 may be connected to a driving mechanism such as an air cylinder, and the lifting plate 14 is lifted by the driving mechanism, so as to drive the ejector plate 12 to lift up, so as to realize demolding.
Preferably, the four corners of the thimble plate 12 are provided with second ejector rods 17 which are propped against the upper template 1. When the driving mechanism drives the lifting plate 14 to lift upwards, the second ejector rod 17 is utilized to drive the upper die plate 1 to lift upwards synchronously, so that one-step completion of die opening and die stripping is realized.
Preferably, the lower die core base 7 is provided with four die cavity grooves 8 which are symmetrical in pairs, and two opposite die cavity grooves 8 are communicated through a runner 18. The injection nozzle 24 at the top of the upper die plate 1 directly injects liquid plastic into the runner 18 through a pipeline, and the liquid plastic is shunted to each cavity groove 8 through the runner 18. An upper mold core 6 matched with the four cavity grooves 8 is arranged in the upper mold core base 5. The middle of the runner 18 is provided with a second ejector hole 19, and the ejector plate 12 is provided with a second ejector pin 21 inserted into the second ejector hole 19. Since the scraps are formed in the runner 18 after cooling, the scraps are ejected out by the second ejector pins 21 during demolding, so that demolding is easier.
Preferably, a group of heat dissipation holes 22 are arranged on the upper template 1 and the lower template 2 to accelerate cooling and improve efficiency.
Preferably, guide posts 23 are arranged at four corners of the upper template 1 and the lower template 2, so that the mold opening and closing is more accurate.
Preferably, a positioning groove 26 is formed in the middle of the lower die core base 7, and a positioning protruding portion 27 matched with the positioning groove 26 in a positioning manner is formed in the middle of the upper die core base 5, so that die assembly is more accurate.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (7)
1. The utility model provides an easy drawing of patterns traction lever mould, includes cope match-plate pattern (1), lower bolster (2), establishes upper die core subassembly (3) in cope match-plate pattern (1) and establish lower die core subassembly (4) in lower bolster (2), upper die core subassembly (3) are including being square last die core base (5) and establishing upper die core (6) in last die core base (5), lower die core subassembly (4) are including being square lower die core base (7) and establishing cavity recess (8) on lower die core base (7), its characterized in that: the novel mold is characterized in that a group of corresponding first ejection holes (11) are formed in a cavity groove (8) of the lower mold core base (7) and the lower mold plate (2), an ejector plate (12) is arranged below the lower mold plate (2), and a first ejector pin (13) inserted into the first ejection holes (11) is arranged on the ejector plate (12).
2. The easy-to-release drawbar die of claim 1, wherein: the ejector plate is characterized in that a lifting plate (14) is arranged below the ejector plate (12), first ejector rods (15) propped against the ejector plate (12) are arranged at two ends of the lifting plate (14), and double-headed screws (16) are arranged at the bottoms of the lifting plate (14) through nuts (9).
3. The easy-to-release drawbar die of claim 2, wherein: second ejector rods (17) propped against the upper template (1) are arranged on four corners of the ejector plate (12).
4. The easy-to-release drawbar die of claim 1, wherein: four cavity grooves (8) which are symmetrical in pairs are formed in the lower die core base (7), two opposite cavity grooves (8) are communicated through a runner (18), a second ejection hole (19) is formed in the middle of the runner (18), and a second ejector pin (21) which is inserted into the second ejection hole (19) is arranged on the ejector plate (12).
5. The easy-to-release drawbar die of claim 1, wherein: and a group of heat dissipation holes (22) are formed in the upper template (1) and the lower template (2).
6. The easy-to-release drawbar die of claim 1, wherein: guide posts (23) are arranged at four corners of the upper template (1) and the lower template (2).
7. The easy-to-release drawbar die of claim 1, wherein: a positioning groove (26) is arranged in the middle of the lower die core base (7), and a positioning protruding part (27) which is matched with the positioning groove (26) in a positioning way is arranged in the middle of the upper die core base (5).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202322974177.9U CN220946438U (en) | 2023-11-03 | 2023-11-03 | Easily-demoulded traction rod die |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202322974177.9U CN220946438U (en) | 2023-11-03 | 2023-11-03 | Easily-demoulded traction rod die |
Publications (1)
Publication Number | Publication Date |
---|---|
CN220946438U true CN220946438U (en) | 2024-05-14 |
Family
ID=91007136
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202322974177.9U Active CN220946438U (en) | 2023-11-03 | 2023-11-03 | Easily-demoulded traction rod die |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN220946438U (en) |
-
2023
- 2023-11-03 CN CN202322974177.9U patent/CN220946438U/en active Active
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