CN219133091U - Injection mold for three-cavity pipe assembly - Google Patents
Injection mold for three-cavity pipe assembly Download PDFInfo
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- CN219133091U CN219133091U CN202222937393.1U CN202222937393U CN219133091U CN 219133091 U CN219133091 U CN 219133091U CN 202222937393 U CN202222937393 U CN 202222937393U CN 219133091 U CN219133091 U CN 219133091U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model discloses a three-cavity pipe assembly injection mold, which comprises: the upper die, the lower die and the core pulling assembly; the middle part of the upper die is provided with a pouring gate; the lower die is provided with an exchange die core and a fixed die core, the exchange die core is provided with a three-way connecting piece injection molding cavity, an ejection mechanism is arranged below the exchange die core, and the fixed die core is provided with a single-cavity pipe joint injection molding cavity; the core pulling assembly comprises a plurality of core pulling rods and a driving assembly, wherein one end of each core pulling rod horizontally extends into the injection cavity of the single-cavity pipe joint, the other end of each core pulling rod is connected with the driving assembly, and the driving assembly is arranged on the side face of the lower die and used for pulling the core pulling rod. The utility model has the advantages that the interchangeable mold core is arranged to be ejected after the plastic part is processed, the plastic part is taken down integrally, the plastic part is taken down manually, and the new mold core is replaced, so that the independent butt joint of the single-cavity pipe and the three-cavity pipe is ensured, the air leakage is avoided, the ejection trace of the appearance of the plastic part is avoided, and the defective rate is greatly reduced.
Description
Technical Field
The utility model relates to the field of three-cavity tube processing, in particular to an injection mold for a three-cavity tube assembly.
Background
In medical treatment, three lumen use is extensive, sets up three lumen promptly in a pipe, can be used for washing, notes medicine and drainage respectively, connects single lumen respectively with three lumen when using and forms three lumen subassemblies, realizes multiple functions. The existing injection mold is disclosed as an utility model patent with the publication number of CN212400188U, and the three-cavity pipe assembly is directly ejected by adopting an ejection mechanism, so that the problems of surface scratch and the like are easy to occur, and meanwhile, the joint of the three-cavity pipe and the single-cavity pipe is easy to break and damage, so that liquid leakage and gas leakage are caused, and the use in medical treatment is influenced.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the injection mold for the three-cavity pipe assembly, which ensures that a single-cavity pipe and the three-cavity pipe are independently butted, is free from air leakage, and greatly reduces the defective rate.
Specifically, the utility model discloses a three-cavity pipe assembly injection mold, which comprises: the upper die, the lower die and the core pulling assembly;
the middle part of the upper die is provided with a pouring gate;
the lower die is provided with an exchange die core and a fixed die core, the exchange die core is provided with a three-way connecting piece injection molding cavity, an ejection mechanism is arranged below the exchange die core, and the fixed die core is provided with a single-cavity pipe joint injection molding cavity;
the core pulling assembly comprises a plurality of core pulling rods and a driving assembly, wherein one end of each core pulling rod horizontally extends into the injection cavity of the single-cavity pipe joint, the other end of each core pulling rod is connected with the driving assembly, and the driving assembly is arranged on the side face of the lower die and used for pulling the core pulling rod.
The technical scheme has the advantages that the interchangeable die core is arranged to be ejected after the plastic part is processed, the plastic part is taken down integrally, the plastic part is taken down manually, the new die core is replaced, the single-cavity pipe and the three-cavity pipe are ensured to be independently butted, the air leakage is free, the appearance ejection trace of the plastic part is avoided, and the defective rate is greatly reduced.
Further, the exchange mold core is provided with a three-cavity pipe positioning groove and three single-cavity pipe positioning grooves, the three-cavity pipe positioning grooves are arranged on one side of the injection molding cavity of the three-way connecting piece and are communicated with the injection molding cavity of the three-way connecting piece, and the single-cavity pipe positioning grooves are arranged on the other side of the injection molding cavity of the three-way connecting piece and are communicated with the injection molding cavity of the three-way connecting piece and the injection molding cavity of the single-cavity pipe joint.
The technical scheme has the advantages that the three-cavity pipe locating groove and the single-cavity pipe locating groove are arranged to avoid and locate the three-cavity pipe and the single-cavity pipe, and the three-cavity pipe or the single-cavity pipe is prevented from being extruded when the mold is closed, so that the three-cavity pipe assembly is not smooth.
Further, the lower die is further provided with an embedded positioning mechanism, the embedded positioning mechanism comprises a plurality of positioning columns arranged on two sides of the three-cavity pipe positioning groove and the single-cavity pipe positioning groove, and the lower end of each positioning column is arranged in the lower die.
The technical scheme has the advantages that the positioning column is arranged to position the three-cavity tube and the single-cavity tube, so that the placement positions of the three-cavity tube and the single-cavity tube are accurate, and the formed three-cavity tube assembly is good in forming effect.
Further, the top of the positioning column is provided with a round chamfer, and the side face of the positioning column is provided with a fixing part.
The technical scheme has the advantages that the arrangement of the round chamfer is convenient for the placement of the three-cavity tube and the single-cavity tube, and meanwhile, the three-cavity tube and the three-cavity tube are fixed through the arrangement of the fixing part, so that the three-cavity tube and the single-cavity tube are prevented from shaking.
Further, the driving assembly includes: the device comprises an oil cylinder, a connecting piece and three sliding blocks, wherein the output end of the oil cylinder is connected with the connecting piece, one end of each sliding block is connected with the connecting piece, the other end of each sliding block is connected with a core-pulling rod, three sliding block grooves are formed in a fixed die core, and the sliding blocks slide in the sliding block grooves.
The technical scheme has the advantages that the oil cylinder is arranged to drive the connecting piece to move, then the three sliding blocks are arranged to drive the core pulling rod respectively, the core pulling rod is pulled out of the injection molding single-cavity pipe connector, the sliding block groove is arranged to limit the moving direction of the sliding block, and the three-cavity pipe connector is good in molding quality.
Further, a connecting part is arranged at one end of the core pulling rod, which is far away from the injection molding cavity of the single-cavity pipe joint, and a connecting groove for accommodating the connecting part is arranged on the sliding block.
The technical scheme has the advantages that the connecting part is arranged on the core pulling rod, the connecting part is only required to be placed in the connecting groove, and the sliding block can drive the core pulling rod to move, so that the operation is simple.
Further, the central lines of the sliding block groove, the single-cavity pipe positioning groove and the injection cavity of the three-way connecting piece are on the same straight line.
The technical scheme has the advantages that when the core pulling driving assembly is used for pulling out the core pulling rod, the core pulling rod cannot deviate to scratch the side face of the single-cavity pipe connector or damage the single-cavity pipe connector.
Furthermore, one end of the core drawing rod extends into the single-cavity tube positioning groove.
The technical scheme has the advantages that during processing, one end of the core drawing rod extends into the single-cavity pipe positioning groove, and smoothness between the single-cavity pipe and the single-cavity pipe joint is ensured in the process of injection molding of the single-cavity pipe joint.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a schematic cross-sectional view of an injection mold for a three-cavity tube assembly according to the present utility model
FIG. 2 is a schematic top view of the lower die of the present utility model
FIG. 3 is a schematic top view of the interchangeable insert of the present utility model
FIG. 4 is a schematic top view of a fixed mold according to the present utility model
FIG. 5 is a schematic view of a positioning column mounting structure according to the present utility model
FIG. 6 is a schematic side view of a slider according to the present utility model
FIG. 7 is a schematic side view of a slider according to the present utility model
Wherein reference numerals are as follows:
an upper die 1; a gate 11; an upper die core 12; a lower die 2; a three-way connection 21; a single-chamber tube joint 22; a single lumen tube 23; a three-lumen tube 24; exchanging the die core 3; a three-way connection injection cavity 31; a three lumen positioning slot 32; a single lumen tube positioning slot 33; a fixed mould core 4; a single-cavity pipe joint injection cavity 41; a slider groove 42; a core rod 5 is drawn out; a connection portion 51; a drive assembly 6; a cylinder 61; a connecting member 62; a slider 63; a connection groove 631; a positioning column 7; a fixing portion 71; an ejector plate 81; exchanging the die core ejector rod 82; single lumen tube connector ejector rod 83.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 to 7, the present utility model discloses a three-cavity tube assembly injection mold, comprising: the upper die 1, the lower die 2 and the core pulling assembly;
the middle part of the upper die 1 is provided with a pouring gate 11;
the lower die 2 is provided with an exchange die core 3 and a fixed die core 4, the exchange die core 3 is provided with a three-way connecting piece injection cavity 31, the lower part of the exchange die core 3 is provided with an ejection mechanism, the fixed die core 4 is provided with a single-cavity pipe joint injection cavity 41, and the upper die 1 is internally provided with an upper die core 12, and the exchange die core 3 and the fixed die core 4 are matched with the injection three-way connecting piece 21 and the single-cavity pipe joint 22;
the core pulling assembly comprises a plurality of core pulling rods 5 and a driving assembly 6, wherein one end of each core pulling rod 5 is horizontally arranged, one end of each core pulling rod extends into the injection cavity 41 of the single-cavity pipe joint, the other end of each core pulling rod is connected with the driving assembly 6, and the driving assembly 6 is arranged on the side face of the lower die 2 and used for pulling the core pulling rod 5.
The technical scheme has the advantages that the mold insert 3 is replaced integrally after the plastic part is machined, the new mold insert is replaced manually, the plastic part is taken down, each single-cavity pipe 23 and the three-cavity pipe 24 are ensured to be independently butted, air leakage is avoided, the mode that the mold insert 3 is integrally taken out is adopted, the appearance ejection trace of the plastic part is avoided, and the defective product rate is greatly reduced.
In some embodiments, the interchangeable mold core 3 may adopt the following structural scheme, the interchangeable mold core 3 is provided with a three-cavity pipe positioning groove 32 for positioning the three-cavity pipe 24 and three single-cavity pipe positioning grooves 33 for fixing the single-cavity pipe 23, the three-cavity pipe positioning groove 32 is disposed on one side of the three-way connecting piece injection molding cavity 31 and is communicated with the three-way connecting piece injection molding cavity 31, and the single-cavity pipe positioning groove 33 is disposed on the other side of the three-way connecting piece injection molding cavity 31 and is communicated with the three-way connecting piece injection molding cavity 31 and the single-cavity pipe joint injection molding cavity 41.
The technical scheme has the advantages that the three-cavity pipe positioning groove 32 and the single-cavity pipe positioning groove 33 are arranged to avoid and position the three-cavity pipe 24 and the single-cavity pipe 23, so that the three-cavity pipe 24 or the single-cavity pipe 23 is prevented from being extruded when the mold is closed, and the three-cavity pipe assembly is not smooth.
In some embodiments, the lower die 2 may adopt the following structural scheme, the lower die 2 is further provided with an embedded positioning mechanism, the embedded positioning mechanism comprises a plurality of positioning columns 7 arranged at two sides of the three-cavity tube positioning groove 32 and the single-cavity tube positioning groove 33, and the lower end of each positioning column 7 is arranged in the lower die 2.
The technical scheme has the advantages that the positioning column 7 is arranged to position the three-cavity tube 24 and the single-cavity tube 23, so that the placement positions of the three-cavity tube 24 and the single-cavity tube 23 are accurate, and the formed three-cavity tube assembly is good in forming effect.
In some embodiments, the positioning column 7 may adopt the following structural scheme, the top of the positioning column 7 is provided with a round chamfer, the side surface is provided with a fixing portion 71, and the diameter of the fixing portion 71 is smaller than that of the positioning column 7 to form an inward concave part for positioning.
The technical scheme has the advantages that the arrangement of the round chamfer facilitates the placement of the three-cavity tube 24 and the single-cavity tube 23, and the arrangement of the fixing part 71 fixes the three-cavity tube 24 and the single-cavity tube 23, so that the three-cavity tube 24 and the single-cavity tube 23 are prevented from shaking.
In some embodiments, the driving assembly 6 may adopt the following structural scheme, and the driving assembly 6 includes: the device comprises an oil cylinder 61, a connecting piece 62 and three sliding blocks 63, wherein the output end of the oil cylinder 61 is connected with the connecting piece 62, the oil cylinder 61 is fixedly arranged on a mounting plate on the side face of a lower die 2 through fixing, one end of each sliding block 63 is connected with the connecting piece 62, the other end of each sliding block 63 is connected with a core-pulling rod 5, three sliding block grooves 42 are formed in a fixed die core 4, the sliding blocks 63 slide in the sliding block grooves 42, dovetail grooves and sliding rails are arranged between the sliding blocks 63 to be matched, and the three sliding blocks 63 are mutually matched in the sliding process, so that the positions cannot deviate.
The technical scheme has the advantages that the oil cylinder 61 is arranged to drive the connecting piece 62 to move, then the three sliding blocks 63 are arranged to drive the core pulling rod 5 respectively, the core pulling rod 5 is pulled out of the injection molded single-cavity pipe joint 22, and the sliding block groove 42 is arranged to limit the moving direction of the sliding blocks 63, so that the molding quality of the single-cavity pipe joint 22 is good.
In some embodiments, the core-pulling rod 5 may adopt a structure that a connection portion 51 is disposed at an end of the core-pulling rod 5 away from the injection cavity 41 of the single-cavity pipe joint, the connection portion 51 protrudes outwards, and a connection groove 631 for accommodating the connection portion 51 is disposed on the slider 63.
The technical scheme has the advantages that the connecting part 51 is arranged on the core pulling rod 5, the sliding block 63 can drive the core pulling rod 5 to move only by placing the connecting part 51 in the connecting groove 631, and the operation is simple.
In some embodiments, the sliding block groove 42 may adopt a structure that the center lines of the sliding block groove 42, the single-cavity tube positioning groove 33 and the three-way connecting piece injection cavity 31 are aligned.
The technical scheme has the advantages that when the core pulling driving assembly 6 is used for pulling out the core pulling rod 5, the core pulling rod 5 cannot deviate to scratch the side face of the single-cavity pipe connector or damage the single-cavity pipe connector 22.
In some embodiments, the core-pulling rod 5 may adopt the following structural scheme, and one end of the core-pulling rod 5 extends into the single-cavity tube positioning groove 33, and extends into the single-cavity tube 23 during processing.
The technical scheme has the advantages that during processing, one end of the core pulling rod 5 extends into the single-cavity pipe positioning groove 33, so that smoothness between the single-cavity pipe 23 and the single-cavity pipe joint 22 is ensured in the process of injection molding of the single-cavity pipe joint 22.
In some embodiments, the ejection mechanism may adopt the following structural scheme, the ejection mechanism includes an ejector rod and an ejector plate 81 that are disposed in the lower die 2, the ejector rod is disposed on the ejector plate, the ejector rod upper end is disposed below the interchangeable die core 3, including an interchangeable die core ejector rod 82 and a single-cavity tube connecting piece ejector rod 83 that are disposed below the interchangeable die core 3, the interchangeable die core 3 ejector rod is used for ejecting the interchangeable die core 3, and the single-cavity tube connecting piece ejector rod 83 is used for ejecting the injection molded single-cavity tube joint 22, and the ejector rod on the injection molding device drives the ejector plate 81 to eject.
During the processing, firstly, workers place the three-cavity tube 24 and the single-cavity tube 23 in the three-cavity tube positioning groove 32 and the single-cavity tube positioning groove 33, at the moment, positioning accuracy is ensured through the arrangement of the positioning column 7, one end of the core pulling rod 5 stretches into one end of the single-cavity tube 23, then under the driving of injection molding equipment, the upper film and the lower film are assembled, materials enter from the pouring gate 11 for injection molding, after injection molding is completed, the ejection mechanism ejects the interchangeable die core 3, the workers take down the interchangeable die core 3, replace the interchangeable die core 3, place the three-cavity tube 24 and the single-cavity tube 23 in the three-cavity tube positioning groove 32 and the single-cavity tube positioning groove 33 again, then take down finished products on the interchangeable die core 3, ensure smooth inner part, scratch on the surface of products and avoid pulling the three-cavity tube 24 and the single-cavity tube 23 in the ejection process of the products.
It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.
Claims (8)
1. A three-cavity tube assembly injection mold, comprising: the upper die, the lower die and the core pulling assembly;
the middle part of the upper die (1) is provided with a pouring gate (11);
the lower die (2) is provided with an exchange die core (3) and a fixed die core (4), the exchange die core (3) is provided with a three-way connecting piece injection molding cavity (31), the lower part of the exchange die core (3) is provided with an ejection mechanism, and the fixed die core (4) is provided with a single-cavity pipe joint injection molding cavity (41);
the core pulling assembly comprises a plurality of core pulling rods (5) and a driving assembly (6), one end of each core pulling rod (5) is horizontally arranged, one end of each core pulling rod extends into the injection cavity (41) of the single-cavity pipe joint, the other end of each core pulling rod is connected with the driving assembly (6), and the driving assembly (6) is arranged on the side face of the lower die (2) and used for pulling the core pulling rods (5).
2. The three-cavity pipe assembly injection mold according to claim 1, wherein a three-cavity pipe positioning groove (32) and three single-cavity pipe positioning grooves (33) are formed in the interchangeable mold core (3), the three-cavity pipe positioning groove (32) is formed in one side of the three-way connecting piece injection cavity (31) and is communicated with the three-way connecting piece injection cavity (31), and the single-cavity pipe positioning groove (33) is formed in the other side of the three-way connecting piece injection cavity (31) and is communicated with the three-way connecting piece injection cavity (31) and the single-cavity pipe joint injection cavity (41).
3. The three-cavity pipe assembly injection mold according to claim 2, wherein an insert positioning mechanism is further arranged on the lower mold (2), the insert positioning mechanism comprises positioning columns (7) which are arranged at two sides of the three-cavity pipe positioning groove (32) and the single-cavity pipe positioning groove (33) at multiple positions, and the lower end of each positioning column (7) is arranged in the lower mold (2).
4. A three-cavity tube assembly injection mould according to claim 3, characterized in that the top of the positioning column (7) is provided with a circular chamfer and the side is provided with a fixing part (71).
5. Three-cavity tube assembly injection mold according to claim 2, characterized in that the drive assembly (6) comprises: the novel oil cylinder comprises an oil cylinder (61), a connecting piece (62) and three sliding blocks (63), wherein the output end of the oil cylinder (61) is connected with the connecting piece (62), one end of each sliding block (63) is connected with the connecting piece (62), the other end of each sliding block is connected with a core pulling rod (5), three sliding block grooves (42) are formed in a fixed die core (4), and the sliding blocks (63) slide in the sliding block grooves (42).
6. The three-cavity pipe assembly injection mold according to claim 5, wherein a connecting portion (51) is provided at an end of the loose core rod (5) away from the single-cavity pipe joint injection cavity (41), and a connecting groove (631) for accommodating the connecting portion (51) is provided on the slider (63).
7. The three-cavity tube assembly injection mold of claim 5, wherein the centerlines of the slider groove (42), the single-cavity tube positioning groove (33) and the three-way connector injection cavity (31) are in a straight line.
8. The three-cavity tube assembly injection mold according to claim 7, wherein one end of the loose core rod (5) extends into the single-cavity tube positioning groove (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222937393.1U CN219133091U (en) | 2022-11-04 | 2022-11-04 | Injection mold for three-cavity pipe assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222937393.1U CN219133091U (en) | 2022-11-04 | 2022-11-04 | Injection mold for three-cavity pipe assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219133091U true CN219133091U (en) | 2023-06-06 |
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ID=86565292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222937393.1U Active CN219133091U (en) | 2022-11-04 | 2022-11-04 | Injection mold for three-cavity pipe assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219133091U (en) |
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2022
- 2022-11-04 CN CN202222937393.1U patent/CN219133091U/en active Active
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