CN213733036U - Double-shot rubber coating die with ejection balance mechanism - Google Patents
Double-shot rubber coating die with ejection balance mechanism Download PDFInfo
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- CN213733036U CN213733036U CN202022820034.9U CN202022820034U CN213733036U CN 213733036 U CN213733036 U CN 213733036U CN 202022820034 U CN202022820034 U CN 202022820034U CN 213733036 U CN213733036 U CN 213733036U
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Abstract
The utility model discloses a bijection rubber coating mould with ejecting balance mechanism, the bottom plate top is provided with ejecting balance mechanism, ejecting balance mechanism includes two at least balanced transfer lines, two balanced transfer lines set up two opposite sides at the thimble board respectively, set up two at least balanced units on every balanced transfer line, balanced unit includes the fixed bolster, drive gear and drive rack, the fixed bolster is connected with balanced transfer line, drive gear cover locates balanced transfer line, drive rack fixed mounting is connected in the side of thimble board and with the drive gear transmission respectively. Need not to change the structure of two-shot rubber coating mould itself, connect four corners of thimble board through the transfer line transmission, with the eccentric thrusting force that the thimble board received evenly disperse on the thimble board, reduced the thimble board by the ejection deformation and the risk that the thimble is bent or is broken, reduced maintenance cost and maintenance time, simple structure is reliable, has increased the life of mould, has improved production efficiency.
Description
Technical Field
The utility model belongs to the technical field of the mould technique and specifically relates to a bijection rubber coating mould with ejecting balance mechanism is related to.
Background
The dual-injection encapsulation mold is formed by injecting two plastic materials twice on different injection molding ports and forming twice, but a product is only formed once, a first beer product of the dual-injection encapsulation mold is often not ejected, the ejection is performed after the secondary forming, and most of the products are single-side ejection structures, an ejector rod hole of the mold is not in the central position of an ejector plate, the ejector plate is unbalanced in stress when the product is ejected, the ejector plate is often deformed or bent to damage the mold, the maintenance cost is increased, the production efficiency is reduced, and therefore improvement is necessary.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing a bijection rubber coating mould with ejecting balance mechanism, simple structure is reliable, and the mould maintenance cost is low, has improved production efficiency.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a double-injection rubber coating die with an ejection balance mechanism comprises a fixed die plate, a movable die plate, an ejector plate and a bottom plate which are arranged from top to bottom, wherein the fixed die plate and the movable die plate are movably connected and matched up and down, the fixed die plate and the movable die plate are respectively provided with a fixed die core and a movable die core, the fixed die core and the movable die core are abutted against each other to form a die cavity, the ejector plate is movably arranged between the movable die plate and the bottom plate, an ejector pin which moves up and down is arranged between the ejector plate and the movable die plate, the bottom of the ejector pin is abutted against and matched with the ejector plate, the ejection balance mechanism is arranged above the bottom plate and comprises at least two balance transmission rods, the two balance transmission rods are respectively arranged at two opposite sides of the ejector plate, each balance transmission rod is provided with at least two balance units, each balance unit comprises a fixed support, a transmission gear and a transmission rack, the fixed support is connected with the balance transmission rods, the balance transmission rod is sleeved with the transmission gear, and the transmission racks are respectively and fixedly arranged on the side surface of the ejector plate and are in transmission connection with the transmission gear.
In a further technical scheme, the balancing units are respectively arranged at two ends of the balancing transmission rod or are uniformly arranged at intervals.
In a further technical scheme, the transmission rack is provided with wear-resisting plates, and the wear-resisting plates are movably mounted on the inner side face of the transmission rack.
In a further technical scheme, a mounting hole penetrating through the fixing support is transversely formed in the side face of the fixing support, and the balance transmission rod penetrates through the mounting hole to be connected with the fixing support.
In a further technical scheme, the fixed support is provided with a rolling bearing, the rolling bearing comprises an outer ring, an inner ring and a plurality of rolling bodies, the outer ring is sleeved on the periphery of the inner ring, a gap is formed between the inner ring and the outer ring, the rolling bodies are movably arranged in the gap, the outer ring is embedded into the mounting hole and is in interference fit with the mounting hole, and the inner ring is in interference fit with the balance transmission rod.
In a further technical scheme, the ejector plate comprises an ejector pin panel and an ejector pin base plate, the ejector pin panel is installed on the top surface of the ejector pin base plate, and the top surface of the ejector pin panel is in abutting fit with the ejector pin.
In a further technical scheme, a limiting part extends inwards from the upper part of the fixing support to limit the upward movement of the ejector plate.
In a further technical scheme, a limiting plate extends outwards from the upper part of the transmission rack so as to limit downward movement of the ejector plate.
After the structure is adopted, compared with the prior art, the utility model the advantage that has is: need not to change the structure of two-shot rubber coating mould itself, add ejecting balance mechanism on the mould bottom plate, through four corners of transfer line transmission connection thimble board, with the eccentric thrusting force that the thimble board received evenly dispersed on the thimble board, reduced the thimble board by the ejecting deformation and the risk that the thimble is bent or is broken, reduced maintenance cost and maintenance time, simple structure is reliable, has increased the life of mould, has improved production efficiency.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural view of an ejection balance mechanism of the present invention;
fig. 2 is a schematic view of the ejection balancing mechanism when the mold is opened;
fig. 3 is a cross-sectional view of the present invention.
In the figure:
1, fixing a template and 11 fixing a mold core;
2, moving templates and 21 moving die cores;
3 ejector pin plates, 31 ejector pin panels and 32 ejector pin bottom plates;
4, a bottom plate;
5, a thimble;
61 balance transmission rods, 62 balance units, 621 fixed brackets, 622 transmission gears, 623 transmission racks, 624 wear plates, 625 mounting holes and 626 limit plates;
and 7, a mold cavity.
Detailed Description
The following are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby.
The utility model provides a bijection rubber coating mould with ejecting balance mechanism, as shown in fig. 1 to 3, including the fixed die plate 1 that from top to bottom sets up, the movable mould board 2, thimble board 3 and bottom plate 4, swing joint cooperation about between fixed die plate 1 and the movable mould board 2, fixed die plate 1 and movable mould board 2 are provided with fixed mould benevolence 11 and movable mould benevolence 21 respectively, fixed mould benevolence 11 and movable mould benevolence 21 form a die cavity 7 when leaning on each other, thimble board 3 movable mounting is between movable mould board 2 and bottom plate 4, be provided with a thimble 5 that reciprocates between thimble board 3 and the movable mould board 2, thimble 5's bottom and thimble board 3 support the cooperation of pushing up, its characterized in that: an ejection balance mechanism is arranged above the bottom plate 4 and comprises at least two balance transmission rods 61, the two balance transmission rods 61 are respectively arranged on two opposite sides of the ejector plate 3, at least two balance units 62 are arranged on each balance transmission rod 61, each balance unit 62 comprises a fixed support 621, a transmission gear 622 and a transmission rack 623, the fixed supports 621 are connected with the balance transmission rods 61, the transmission gears 622 are sleeved on the balance transmission rods 61, and the transmission racks 623 are respectively and fixedly arranged on the side faces of the ejector plate 3 and in transmission connection with the transmission gears 622.
The ejection mechanism of the dual-injection rubber-coating die is single-side ejection, the ejector pin 5 is not positioned in the center of the ejector pin plate 3, so that the ejector pin 5 is unevenly stressed when ejected, the ejector pin plate 3 cannot be kept horizontal when moving, the die is easily scratched and damaged when moving, the requirement on the ejection force of the ejector pin 5 is high, and the ejector pin 5 is easily bent or broken in the ejection process, however, the utility model discloses an ejection balance mechanism is installed between the ejector pin plate 3 and the bottom plate 4, the ejector pin plate 3 and the bottom plate 4 are connected in a sliding manner by the ejection balance mechanism, when the ejector pin 5 pushes the ejector pin plate 3, the transmission rack 623 installed on the ejector pin plate 3 pushes the transmission gear 622 to rotate, the specifications of the transmission gear 622 and the transmission rack 623 are unified, under the connection of the balance transmission rod 61, all the rotation rates of the transmission gear 622 are the same, the ejector pin plate 3 keeps moving horizontally and vertically, and the risk of rubbing the die is reduced, and the eccentric jacking force that thimble board 3 received is dispersed to each balance unit, and has reduced frictional force, when having reduced thimble 5 and bending or cracked risk, has reduced the maintenance cost, has prolonged the life of mould.
Specifically, the balancing units 62 are respectively disposed at both ends of the balancing driving rod 61 or uniformly spaced. The balance units are arranged at four corners of the ejector plate 3, eccentric jacking force can be uniformly dispersed, preferably, three or more balance units are arranged on the balance transmission rod 61, the balance units are arranged at intervals, and the ejector plate 3 is more stable in moving.
Preferably, the gear rack 623 is provided with wear plates 624, the wear plates 624 being movably mounted to the inner side surfaces of the gear rack 623. The wear-resisting plate 624 is arranged on the inner side of the transmission rack 623, the wear-resisting plate 624 is connected with the transmission rack 623 through screws and can be replaced, and the service life of the transmission rack 623 is prolonged.
Specifically, the side of the fixing bracket 621 is transversely provided with a mounting hole 625 penetrating through the fixing bracket 621, and the balance transmission rod 61 penetrates through the mounting hole 625 to be connected with the fixing bracket 621.
Preferably, the fixing bracket 621 is provided with a rolling bearing, the rolling bearing includes an outer ring, an inner ring and a plurality of rolling bodies, the outer ring is sleeved on the periphery of the inner ring, the inner ring and the outer ring have a gap, the rolling bodies are movably installed in the gap, the outer ring is embedded in the installation hole 625 and is in interference fit with the installation hole 625, and the inner ring is in interference fit with the balance transmission rod 61. The fixed support 621 is rotatably connected with the balance transmission rod 61 through a rolling bearing, so that the friction force is further reduced, and the jacking force of the thimble 5 on the thimble plate 3 is reduced.
Specifically, the ejector plate 3 includes an ejector pin panel 31 and an ejector pin base plate 32, the ejector pin panel 31 is mounted on the top surface of the ejector pin base plate 32, and the top surface of the ejector pin panel 31 is in abutting fit with the ejector pin 5. The ejector pin plate 3 is divided into an ejector pin panel 31 and an ejector pin base plate 32, the ejector pin 5 is in abutting fit with the ejector pin panel 31, the ejector pin panel 31 is in abutting fit with the ejector pin base plate 32, the ejector pin base plate 32 is not directly stressed, when the ejector pin panel 31 is damaged, the ejector pin panel 31 can be directly replaced, the ejector pin base plate 32 does not need to be replaced, and the maintenance cost is reduced.
Specifically, a limiting portion extends inwards from the upper portion of the fixing bracket 621 to limit the upward movement of the ejector plate 3. When the ejector plate 3 moves upward to complete the demolding, the top surface of the ejector plate 3 abuts against the limiting part of the fixing support 621.
Specifically, a limiting plate 626 extends outwards from the upper part of the transmission rack 623 to limit the downward movement of the ejector plate 3. When the ejector plate 3 moves the movable die plate 2 downward and completes the closing of the fixed die plate 1, the bottom surface of the limit plate 626 of the transmission rack 623 abuts against the transmission gear 622.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (8)
1. The utility model provides a bijection rubber coating mould with ejecting balance mechanism, including fixed die plate (1) that from top to bottom sets up, movable mould board (2), thimble board (3) and bottom plate (4), swing joint cooperation about between fixed die plate (1) and the movable mould board (2), fixed die plate (1) and movable mould board (2) are provided with cover half benevolence (11) and movable mould benevolence (21) respectively, form a die cavity (7) when cover half benevolence (11) and movable mould benevolence (21) support each other to lean on, thimble board (3) movable mounting is between movable mould board (2) and bottom plate (4), be provided with thimble (5) that reciprocate between thimble board (3) and the movable mould board (2), the bottom and thimble board (3) of thimble (5) support the cooperation, its characterized in that: the top of the bottom plate (4) is provided with an ejection balance mechanism, the ejection balance mechanism comprises at least two balance transmission rods (61), the two balance transmission rods (61) are respectively arranged on two opposite sides of the ejector plate (3), each balance transmission rod (61) is provided with at least two balance units (62), each balance unit (62) comprises a fixed support (621), a transmission gear (622) and a transmission rack (623), the fixed supports (621) are connected with the balance transmission rods (61), the balance transmission rods (61) are sleeved with the transmission gear (622), and the transmission racks (623) are respectively and fixedly installed on the side face of the ejector plate (3) and are in transmission connection with the transmission gear (622).
2. The double-shot encapsulation die with the ejection balancing mechanism according to claim 1, wherein: the balance units (62) are respectively arranged at two ends of the balance transmission rod (61) or are uniformly arranged at intervals.
3. The double-shot encapsulation die with the ejection balancing mechanism according to claim 1, wherein: the transmission rack (623) is provided with a wear-resisting plate (624), and the wear-resisting plate (624) is movably arranged on the inner side surface of the transmission rack (623).
4. The double-shot encapsulation die with the ejection balancing mechanism according to claim 1, wherein: the side of fixed bolster (621) transversely seted up mounting hole (625) that run through fixed bolster (621), balanced transfer line (61) pass mounting hole (625) and are connected with fixed bolster (621).
5. The two-shot encapsulation die with the ejection balancing mechanism of claim 4, wherein: the fixed support (621) is provided with a rolling bearing, the rolling bearing comprises an outer ring, an inner ring and a plurality of rolling bodies, the outer ring is sleeved on the periphery of the inner ring, the inner ring and the outer ring are provided with gaps, the rolling bodies are movably arranged in the gaps, the outer ring is embedded into the mounting holes (625) and is in interference fit with the mounting holes (625), and the inner ring is in interference fit with the balance transmission rod (61).
6. The double-shot encapsulation die with the ejection balancing mechanism according to claim 1, wherein: the ejector pin plate (3) comprises an ejector pin panel (31) and an ejector pin base plate (32), the ejector pin panel (31) is installed on the top surface of the ejector pin base plate (32), and the top surface of the ejector pin panel (31) is in abutting fit with the ejector pins (5).
7. The double-shot encapsulation die with the ejection balancing mechanism according to claim 1, wherein: the upper part of the fixed support (621) extends inwards to form a limiting part so as to limit the upward movement of the ejector plate (3).
8. The double-shot encapsulation die with the ejection balancing mechanism according to claim 1, wherein: a limiting plate (626) extends outwards from the upper part of the transmission rack (623) to limit the downward movement of the ejector plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022820034.9U CN213733036U (en) | 2020-11-30 | 2020-11-30 | Double-shot rubber coating die with ejection balance mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022820034.9U CN213733036U (en) | 2020-11-30 | 2020-11-30 | Double-shot rubber coating die with ejection balance mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213733036U true CN213733036U (en) | 2021-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022820034.9U Active CN213733036U (en) | 2020-11-30 | 2020-11-30 | Double-shot rubber coating die with ejection balance mechanism |
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| CN (1) | CN213733036U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114311432A (en) * | 2022-02-28 | 2022-04-12 | 东莞好景塑胶模具制造有限公司 | Asynchronous ejection die structure |
-
2020
- 2020-11-30 CN CN202022820034.9U patent/CN213733036U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114311432A (en) * | 2022-02-28 | 2022-04-12 | 东莞好景塑胶模具制造有限公司 | Asynchronous ejection die structure |
| CN114311432B (en) * | 2022-02-28 | 2023-11-14 | 东莞好景塑胶模具制造有限公司 | Asynchronous ejection die structure |
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