CN213860532U - Micro-foaming injection charging barrel - Google Patents
Micro-foaming injection charging barrel Download PDFInfo
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- CN213860532U CN213860532U CN202022845680.0U CN202022845680U CN213860532U CN 213860532 U CN213860532 U CN 213860532U CN 202022845680 U CN202022845680 U CN 202022845680U CN 213860532 U CN213860532 U CN 213860532U
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Abstract
The invention relates to the technical field of injection molding machines, in particular to a micro-foaming injection charging barrel which comprises a charging barrel, a telescopic device, a screw and a power device for driving the screw to rotate, wherein the power device is fixedly connected with the telescopic device; the technical problem to be solved is that: the supercritical fluid is not uniformly mixed in the molten material, resulting in foaming size.
Description
The technical field is as follows:
the invention relates to the technical field of injection molding machines, in particular to a micro-foaming injection charging barrel.
Background art:
the micro-foaming is more and more widely applied to the molding process of injection molding products, and because the use amount of raw materials can be reduced, the product with micro-pores has the advantages of good toughness, reduced requirement on the mold locking pressure and the like, various lightweight products are applied to the injection molding micro-foaming process; the micro-foaming process mainly fills the product by the expansion of air holes and completes the molding of the product under lower and even pressure. In the micro-foaming molding, a supercritical fluid (CO 2 or N2) is dissolved into hot melt adhesive to form a single-phase solution in the first stage and is kept under a certain constant pressure, and the traditional micro-foaming plastic injection cylinder is filled with the supercritical fluid at a specific position outside a cylinder, so that the problems of uneven mixing, poor foaming effect and poor product quality are easily caused.
The utility model has the following contents:
in order to solve the technical problem, the utility model provides a special lifting tower of auto repair, the technical problem of solution is: the supercritical fluid is not uniformly mixed in the molten material, resulting in foaming size. In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides a little foaming injection feed cylinder, includes feed cylinder, telescoping device, screw rod and is used for the rotatory power device of drive screw rod, power device and telescoping device are connected with fixed mode, and feed cylinder fixed mounting is on the telescoping device, and the reciprocating motion of screw rod in the feed cylinder, screw rod include reinforced melting section, homogeneity section and extrude the section, the inside air flue that is provided with of screw rod, the air flue link up to the middle part of homogeneity section at reinforced melting section and end, and homogeneity section circumferential surface is provided with a plurality of micropores that communicate with the air flue.
Further, the diameter of the micropores is 0.5 to 2 mm.
Further, the diameter of the micropores is 0.5 mm.
Furthermore, the feeding melting section and the homogenizing section are arranged in an inserting mode, a sealing ring A is arranged at the inserting position and close to the feeding melting section, and a check ring A matched with the sealing ring A is further arranged.
Furthermore, the homogenizing section and the extruding section are arranged in an inserting mode, a sealing ring B is arranged at the inserting position and close to the homogenizing section, and a check ring B matched with the sealing ring B is further arranged.
Furthermore, the telescopic device comprises a fixed support and hydraulic oil cylinders which are symmetrically arranged, and output shafts of the hydraulic oil cylinders are fixedly connected with the power device.
Furthermore, the power device comprises a motor, a thrust seat and a top shaft, wherein the motor is fixedly connected with the thrust seat, the motor provides power for the top shaft to rotate in the thrust seat, the top shaft is fixedly connected with the screw rod, an L-shaped air hole is formed in the top shaft, one end of the air hole is connected with the air passage, and a sealing gasket embedded in the screw rod is arranged at the joint of the air hole and the air passage; the other end of the air hole is arranged on the surface of the top shaft, and sealing rings are arranged on two sides of the air hole and between the thrust seat and the top shaft; and through holes are formed in the positions, corresponding to the air holes, of the thrust seat.
The utility model has the advantages that: since the technical scheme is used, compared with the prior art, the utility model, put at the screw rod central point and annotate supercritical fluid to in adding the melting material after further refining through the micropore, pass through the mixing head of screw rod tip again, make with supercritical fluid and melting raw materials misce bene, not influenced by the screw rod motion to the plastify process.
Description of the drawings:
fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the explosive structure of the charging barrel and the screw rod of the present invention;
fig. 3 is a schematic view of the three-dimensional structure of the power device of the present invention.
In the figure: 1. the device comprises a material barrel, 2, a telescopic device, 3, a screw rod, 31, a feeding melting section, 32, a homogenizing section, 33, an extruding section, 4, a power device, 41, a motor, 42, a thrust seat, 43, a top shaft, 431, an air hole, 5, an air passage, 6, a micropore, 7, a sealing ring A, 8, a non-return ring A, 9, a sealing ring B, 10, a non-return ring B, 11, a sealing gasket, 12, a sealing ring, 13 and a through hole.
The specific implementation mode is as follows:
in order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will now be described in further detail with reference to fig. 1-3 and examples so that the public can better master the method of implementing the present invention, and the specific embodiments of the present invention are:
a micro-foaming injection charging barrel comprises a charging barrel 1, a telescopic device 2, a screw rod 3 and a power device 4 used for driving the screw rod 3 to rotate, wherein the power device 4 is fixedly connected with the telescopic device 2, the charging barrel 1 is fixedly installed on the telescopic device 2, the screw rod 3 reciprocates in the charging barrel 1, the screw rod 3 comprises a feeding melting section 31, a homogenizing section 32 and an extruding section 33, an air passage 5 is arranged inside the screw rod 3, the air passage 5 is communicated to the middle of the homogenizing section 32 at the feeding melting section 31, and a plurality of micropores 6 communicated with the air passage 5 are formed in the circumferential surface of the homogenizing section 32.
In practical use, the diameter of the micropores 6 is preferably in the range of 0.5 to 2 mm, and more preferably 0.5 mm, and by providing the micropores with a diameter of 0.5 mm, the supercritical fluid can be made finer, and can be more easily mixed with the melt uniformly, thereby making the size of the bubbles uniform.
The feeding melting section 31 and the homogenizing section 32 are arranged in an inserted manner, a sealing ring A7 is arranged at the inserted position and close to the feeding melting section 31, and a check ring A8 matched with the sealing ring A7 is further arranged, so that the mixture can be prevented from flowing back during high-pressure injection.
The homogenizing section 32 and the extruding section 33 are arranged in an inserted manner, a sealing ring B9 is arranged at the inserted position and close to the homogenizing section 32, and a non-return ring B10 matched with the sealing ring B9 is further arranged, so that the molten material can be ensured not to retreat when the supercritical fluid is filled at low pressure.
The telescopic device 2 comprises a fixed support 21 and hydraulic oil cylinders 22 which are symmetrically arranged, and output shafts of the hydraulic oil cylinders 22 are fixedly connected with the power device 4.
The power device (4) comprises a motor 41, a thrust seat 42 and a top shaft 43, the motor 41 is fixedly connected with the thrust seat 42, the motor 41 provides power for the top shaft 43 to rotate in the thrust seat 42, the top shaft 43 is fixedly connected with the screw rod 3, an L-shaped air hole 431 is arranged on the top shaft 43, one end of the air hole 431 is connected with the air passage 5, and a sealing gasket 11 embedded on the screw rod 3 is arranged at the connection position of the air hole 431 and the air passage 5; the other end of the air hole 431 is arranged on the surface of the top shaft 43, and sealing rings 12 are arranged on two sides of the air hole 431 and between the thrust seat 42 and the top shaft 43; the thrust seat 42 is provided with a through hole 13 at a position corresponding to the air hole 431, and the sealing performance of a gas filling structure is ensured through the arrangement of a sealing gasket and a sealing ring.
The utility model discloses a theory of operation and working process as follows:
firstly, an output shaft of a motor 41 drives a top shaft 43 to rotate, the top shaft 43 drives a screw 3 to rotate, the rotating screw 23 pushes plasticized melt to a homogenizing section 32, in the process, supercritical fluid passes through a through hole 13, enters an air hole 431, further enters an air passage 5, is mixed with the melt in a charging barrel 1 through a micropore 6, and enters an extruding section 33; in the second step, the hydraulic cylinder 22 drives the power device 4 to move forward, and further drives the screw 3 to move forward to complete the injection.
In describing the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "front", "rear", "lower left", "upper right", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Claims (7)
1. A microfoaming injection cylinder comprises a cylinder (1), a telescopic device (2), a screw (3) and a power device (4) for driving the screw (3) to rotate, wherein the power device (4) is fixedly connected with the telescopic device (2), the cylinder (1) is fixedly installed on the telescopic device (2), the screw (3) reciprocates in the cylinder (1), and the screw (3) comprises a feeding melting section (31), a homogenizing section (32) and an extrusion section (33), and is characterized in that: an air passage (5) is arranged in the screw (3), the air passage (5) is finished in the middle of the feeding melting section (31) which penetrates to the homogenizing section (32), and a plurality of micropores (6) communicated with the air passage (5) are arranged on the circumferential surface of the homogenizing section (32).
2. A microfoaming injection cartridge according to claim 1, wherein: the diameter of the micropores (6) is 0.5-2 mm.
3. A microfoaming injection cartridge according to claim 2, wherein: the diameter of the micropores (6) is 0.5 mm.
4. A microfoaming injection cartridge according to claim 1, wherein: the feeding melting section (31) and the homogenizing section (32) are arranged in an inserting mode, a sealing ring A (7) is arranged at the inserting position and close to the feeding melting section (31), and a non-return ring A (8) matched with the sealing ring A (7) is further arranged.
5. A microfoaming injection cartridge according to any of claims 1 or 4, wherein: the homogenizing section (32) and the extruding section (33) are arranged in an inserting mode, a sealing ring B (9) is arranged at the inserting position and close to the homogenizing section (32), and a non-return ring B (10) matched with the sealing ring B (9) is further arranged.
6. A microfoaming injection cartridge according to claim 1, wherein: the telescopic device (2) comprises a fixed support (21) and hydraulic oil cylinders (22) which are symmetrically arranged, and output shafts of the hydraulic oil cylinders (22) are fixedly connected with the power device (4).
7. A microfoaming injection cartridge according to claim 1, wherein: the power device (4) comprises a motor (41), a thrust seat (42) and a top shaft (43), the motor (41) is fixedly connected with the thrust seat (42), the motor (41) provides power for the top shaft (43) to rotate in the thrust seat (42), the top shaft (43) is fixedly connected with the screw (3), an L-shaped air hole (431) is formed in the top shaft (43), one end of the air hole (431) is connected with the air passage (5), and a sealing gasket (11) embedded in the screw (3) is arranged at the connection position of the air hole (431) and the air passage (5); the other end of the air hole (431) is arranged on the surface of the top shaft (43), and sealing rings (12) are arranged on two sides of the air hole (431) and between the thrust seat (42) and the top shaft (43); through holes (13) are formed in the positions, corresponding to the air holes (431), of the thrust seat (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022845680.0U CN213860532U (en) | 2020-12-02 | 2020-12-02 | Micro-foaming injection charging barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022845680.0U CN213860532U (en) | 2020-12-02 | 2020-12-02 | Micro-foaming injection charging barrel |
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| Publication Number | Publication Date |
|---|---|
| CN213860532U true CN213860532U (en) | 2021-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022845680.0U Active CN213860532U (en) | 2020-12-02 | 2020-12-02 | Micro-foaming injection charging barrel |
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| CN (1) | CN213860532U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115319046A (en) * | 2022-08-04 | 2022-11-11 | 宁波君品运动科技有限公司 | Integrated forming device and process for electric vehicle frame |
-
2020
- 2020-12-02 CN CN202022845680.0U patent/CN213860532U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115319046A (en) * | 2022-08-04 | 2022-11-11 | 宁波君品运动科技有限公司 | Integrated forming device and process for electric vehicle frame |
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