CN219294623U - Injection mold core pulling device and injection mold - Google Patents
Injection mold core pulling device and injection mold Download PDFInfo
- Publication number
- CN219294623U CN219294623U CN202223138071.7U CN202223138071U CN219294623U CN 219294623 U CN219294623 U CN 219294623U CN 202223138071 U CN202223138071 U CN 202223138071U CN 219294623 U CN219294623 U CN 219294623U
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- core pulling
- injection
- sleeve
- injection mold
- injection molding
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Abstract
The utility model discloses a core pulling device of an injection mold and the injection mold, comprising a front mold core, a rear mold core and an injection cavity formed between the front mold core and the rear mold core, wherein a spiral core pulling rod is arranged in the injection cavity, the spiral core pulling rod comprises an injection thread part in threaded connection with an injection molding piece and a driving thread part in threaded connection with the injection thread part, a fixed seat is annularly arranged on the driving thread part and in threaded connection with the driving thread part.
Description
[ field of technology ]
The application relates to the technical field of injection molding equipment, in particular to an injection mold core pulling device and an injection mold.
[ background Art ]
An injection molding member 100 shown in fig. 8 includes an injection thread groove 300 disposed inside the injection molding member 100, but there is no injection mold capable of injection molding the injection molding member 100, and the oblique core pulling device in the injection mold of the prior art cannot release the injection molding member with the injection thread groove 300 inside, so that a set of injection mold capable of being adapted to the injection molding member 100 is required.
[ utility model ]
The utility model discloses an injection mold core pulling device and an injection mold, which are used for solving the problems that an injection mold in the prior art is not suitable for injection molding and demolding of an injection molding piece with a thread groove on the inner side.
In order to solve the problems, the utility model provides the following technical scheme: the utility model provides an injection mold core pulling device, includes the cavity of moulding plastics that front mould benevolence and back mould benevolence and formed between the two, the intracavity of moulding plastics is equipped with the spiral core pole of taking out, the spiral core pole of taking out include with injection molding threaded portion of injection molding threaded connection and with the drive screw thread portion of injection molding threaded portion connection, the drive screw thread portion goes up the ring and is equipped with the fixing base, the fixing base with drive screw thread portion threaded connection, the spiral core pole of taking out can be relative the fixing base rotates, so as to pass through drive screw thread portion drives the direction of injection molding threaded portion is in the direction of keeping away from the cavity of moulding plastics moves.
According to the injection mold core pulling device, the sleeve which is mutually communicated with the injection cavity and connected with the fixing seat is arranged at one end of the injection cavity, and the sleeve comprises the injection part end forming part inserted between the rear mold core and the front mold core.
According to the injection mold core pulling device, the spiral core pulling rod comprises the sleeve connecting portion, the sleeve is sleeved on the sleeve connecting portion, one end of the sleeve connecting portion is connected with the injection molding threaded portion, and the other end of the sleeve connecting portion is connected with the driving threaded portion.
According to the injection mold core pulling device, the fixing seat comprises the annular threaded block, and the annular threaded block is provided with the threaded groove in threaded connection with the driving threaded portion.
According to the injection mold core pulling device, the driving motor is arranged at one end, far away from the injection cavity, of the driving threaded portion, and drives the spiral core pulling rod to rotate so as to drive the spiral core pulling rod to move along the length direction of the spiral core pulling rod.
According to the injection mold core pulling device, the reserved sleeve is arranged between the driving motor and the spiral core pulling rod and is connected with the driving motor, and the driving motor drives the reserved sleeve to rotate so as to drive the spiral core pulling rod to rotate.
According to the injection mold core pulling device, the reserved cavity is formed in the inner side of the reserved sleeve, the spiral core pulling rod is inserted into the reserved cavity, and the spiral core pulling rod can move in the reserved cavity along the length direction of the reserved cavity.
According to the injection mold core pulling device, the reserved cavity is provided with the plurality of key grooves, and the spiral core pulling rod is provided with the clamping key which is matched and clamped with the key grooves.
According to the injection mold core pulling device, one end of the reserved sleeve, which is far away from the injection cavity, is connected with the driving motor in a key manner.
An injection mold comprises an injection mold core pulling device.
Compared with the prior art, the application has the following advantages:
according to the utility model, the injection thread part in the spiral core drawing rod is inserted into the injection cavity to form a required threaded injection molding piece in the injection cavity, and then the driving thread part in the spiral core drawing rod is connected with the fixed seat, so that the spiral core drawing rod can rotate relative to the fixed seat, the driving thread part drives the injection thread part to move in a direction away from the injection cavity, the demolding of the injection molding piece can be completed, meanwhile, the injection molding of the injection molding piece 100 can also be completed, and the problems that an injection mold in the prior art is not suitable for injection molding and demolding of an injection molding piece with a thread groove on the inner side are solved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below.
FIG. 1 is a front cross-sectional view of the hidden fixing base of the present embodiment;
FIG. 2 is a rear cross-sectional view of the present embodiment with the addition of the anchor block shown in FIG. 1;
fig. 3 is a schematic perspective view of the hidden driving motor and the reserved sleeve according to the present embodiment;
FIG. 4 is a schematic view of the structure of the annular screw block of the present embodiment;
FIG. 5 is a schematic view of the structure of the screw driving rod of the present embodiment;
fig. 6 is a schematic perspective view of a side of the reserved sleeve close to the driving motor in the embodiment;
fig. 7 is a schematic perspective view of a side of the retaining sleeve close to the fixing base in this embodiment;
fig. 8 is a schematic perspective view of an injection molding of the present embodiment.
[ detailed description ] of the utility model
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
When embodiments of the present utility model refer to the ordinal terms "first," "second," etc., it is to be understood that they are merely used for distinguishing between them unless the order of their presentation is indeed dependent on the context. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1-8, an injection mold core pulling device comprises a front mold core 1, a rear mold core 2 and an injection cavity 3 formed between the front mold core and the rear mold core, wherein a spiral core pulling rod 4 is arranged in the injection cavity 3, the spiral core pulling rod 4 comprises an injection thread part 41 in threaded connection with an injection molding piece and a driving thread part 42 connected with the injection thread part 41, a fixing seat 5 is annularly arranged on the driving thread part 42, the fixing seat 5 is in threaded connection with the driving thread part 42, and the spiral core pulling rod 4 can rotate relative to the fixing seat 5 so as to drive the injection thread part 41 to move away from the injection cavity 3 through the driving thread part 42.
In this embodiment, the injection thread portion 41 in the spiral core rod 4 is inserted into the injection cavity 3 to form a required threaded injection molding piece in the injection cavity 3, and then the driving thread portion 42 in the spiral core rod 4 is connected with the fixing seat 5, the spiral core rod 4 can rotate relative to the fixing seat 5, so that the driving thread portion 42 drives the injection thread portion 41 to move in a direction away from the injection cavity 3, and thus demolding of the injection molding piece can be completed, and meanwhile, injection molding of the injection molding piece 100 can also be completed, and the problems that an injection mold in the prior art is not suitable for injection molding and demolding of an injection molding piece with a threaded groove inside.
Further, one end of the injection cavity 3 is provided with a sleeve 6 which is mutually communicated with the injection cavity and is connected with the fixing seat 5, and the sleeve 6 comprises an injection molding end forming part 60 inserted between the rear mold core 2 and the front mold core 1.
In this embodiment, as shown in fig. 8, the injection molding member 100 includes a pipe end 200, the pipe end 200 can be integrally connected with the injection molding member end forming portion 60, the rear mold core 2 and the front mold core 1 in a matching manner, and the sleeve 6 is configured to facilitate the separation of the driving threaded portion 42 from the injection molding threaded portion, so that the driving threaded portion and the injection molding threaded portion do not interfere with each other and are not affected.
Further, the screw mandrel 4 includes a sleeve connection portion 43, the sleeve 6 is sleeved on the sleeve connection portion 43, one end of the sleeve connection portion 43 is connected with the injection thread portion 41, and the other end is connected with the driving thread portion 42.
In the present embodiment, the sleeve connecting portion 43 cooperates with the sleeve 6 to distinguish the driving screw portion 42 from the injection screw portion, and the two portions are not interfered with each other and are not affected.
Further, the fixing seat 5 is sleeved on the driving threaded portion 42, the fixing seat 5 includes an annular threaded block 51, and a threaded groove 510 in threaded connection with the driving threaded portion 42 is provided on the annular threaded block 51.
In this embodiment, the screw force generated by the screw connection of the screw groove 510 and the driving screw portion 42 pushes the screw rod 4 to move in the length direction thereof.
Further, the length of the thread groove 510 is smaller than the thread length on the driving thread part 42.
In this embodiment, on one hand, only the thread groove 510 smaller than the thread length of the driving thread portion 42 is required to complete the thread pushing, and on the other hand, the manufacturing cost of the thread groove is reduced, which is convenient for the enterprise to manufacture.
Further, a driving motor 7 is disposed at one end of the driving screw 42 away from the injection cavity 3, and the driving motor 7 drives the spiral core rod 4 to rotate, so as to drive the spiral core rod 4 to move along the length direction thereof.
In another embodiment, the drive motor 7 may be replaced with a drive cylinder.
Further, a reserved sleeve 8 is arranged between the driving motor 7 and the spiral core drawing rod 4, and the driving motor 7 drives the reserved sleeve 8 to rotate so as to drive the spiral core drawing rod 4 to rotate.
In this embodiment, the purpose of the retaining sleeve 8 is to facilitate the demolding of the screw mandrel 4 with sufficient space to disengage the injection thread 41 from the injection-molded part.
Further, a reserved cavity 81 is provided at the inner side of the reserved sleeve 8, the spiral core rod 4 is inserted into the reserved cavity 81, and the spiral core rod 4 can move along the length direction of the reserved cavity 81 in the reserved cavity 81.
In the present embodiment, the cavity 81 is provided to facilitate the demolding, and the screw rod 4 has enough space to disengage the injection screw portion 41 from the injection molding.
Further, the reserved cavity 81 is provided with a plurality of keyways 810, and the screw mandrel 4 is provided with a clamping key 44 which is matched and clamped with the keyways 810.
In this embodiment, under the condition that the driving motor 7 drives the reserved sleeve 8 to rotate, the matching and clamping of the key slot 810 and the clamping key 44 are more convenient for driving the spiral core drawing rod 4 to rotate.
Further, one end of the reserved sleeve 8 away from the injection cavity 3 is in key connection with the driving motor 7.
In this embodiment, the key connection is more convenient to rotate the screw mandrel 4.
The working principle of the utility model is as follows:
the driving motor 7 drives the spiral core drawing rod 4 to rotate relative to the fixing seat 5, and the driving screw thread portion 42 and the screw thread connection of the fixing seat 5 generate screw thread force to push the spiral core drawing rod 4 to move along the length direction thereof, namely, the driving screw thread portion 41 is driven to move away from the injection cavity 3, so as to complete the demolding of the injection molding piece.
The above description of one embodiment provided in connection with a particular disclosure is not intended to limit the practice of this application to that particular disclosure. Any approximation, or substitution of techniques for the methods, structures, etc. of the present application or for the purposes of making a number of technological deductions or substitutions based on the concepts of the present application should be considered as the scope of protection of the present application.
Claims (10)
1. The utility model provides an injection mold core pulling device, its characterized in that includes front mould benevolence (1) and back mould benevolence (2) and injection molding chamber (3) that form between the two, be equipped with spiral core pulling rod (4) in injection molding chamber (3), spiral core pulling rod (4) include with injection molding threaded portion (41) of injection molding threaded portion (41) and with drive screw thread portion (42) that injection molding threaded portion (41) are connected, drive screw thread portion (42) go up the ring and be equipped with fixing base (5), fixing base (5) with drive screw thread portion (42) threaded connection, spiral core pulling rod (4) can be relative fixing base (5) rotate, so that pass through drive screw thread portion (42) drive injection molding threaded portion (41) are in the direction of keeping away from injection molding chamber (3).
2. The core pulling device for an injection mold according to claim 1, wherein one end of the injection cavity (3) is provided with a sleeve (6) which is mutually communicated with the sleeve and is connected with the fixing seat (5), and the sleeve (6) comprises an injection molding end forming part (60) inserted between the rear mold core (2) and the front mold core (1).
3. The core pulling device for an injection mold according to claim 2, wherein the spiral core pulling rod (4) comprises a sleeve connecting portion (43), the sleeve (6) is sleeved on the sleeve connecting portion (43), one end of the sleeve connecting portion (43) is connected with the injection thread portion (41), and the other end of the sleeve connecting portion is connected with the driving thread portion (42).
4. The injection mold core pulling device according to claim 1, wherein the fixing seat (5) comprises an annular threaded block (51), and a threaded groove (510) in threaded connection with the driving threaded portion (42) is formed in the annular threaded block (51).
5. The core pulling device for the injection mold according to claim 1, wherein a driving motor (7) is arranged at one end of the driving screw thread part (42) far away from the injection cavity (3), and the driving motor (7) drives the spiral core pulling rod (4) to rotate so as to drive the spiral core pulling rod (4) to move along the length direction of the spiral core pulling rod.
6. The injection mold core pulling device according to claim 5, wherein a reserved sleeve (8) is arranged between the driving motor (7) and the spiral core pulling rod (4), and the driving motor (7) drives the reserved sleeve (8) to rotate so as to drive the spiral core pulling rod (4) to rotate.
7. The injection mold core pulling device according to claim 6, wherein a reserved cavity (81) is arranged on the inner side of the reserved sleeve (8), the spiral core pulling rod (4) is inserted into the reserved cavity (81), and the spiral core pulling rod (4) can move in the reserved cavity (81) along the length direction of the reserved cavity (81).
8. The injection mold core pulling device according to claim 7, wherein the reserved cavity (81) is provided with a plurality of key grooves (810), and the spiral core pulling rod (4) is provided with clamping keys (44) which are matched and clamped with the key grooves (810).
9. The injection mold core pulling device according to claim 6, wherein one end of the reserved sleeve (8) far away from the injection cavity (3) is in key connection with the driving motor (7).
10. An injection mold, comprising an injection mold core pulling device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223138071.7U CN219294623U (en) | 2023-04-06 | 2023-04-06 | Injection mold core pulling device and injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223138071.7U CN219294623U (en) | 2023-04-06 | 2023-04-06 | Injection mold core pulling device and injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219294623U true CN219294623U (en) | 2023-07-04 |
Family
ID=86986481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223138071.7U Active CN219294623U (en) | 2023-04-06 | 2023-04-06 | Injection mold core pulling device and injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219294623U (en) |
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2023
- 2023-04-06 CN CN202223138071.7U patent/CN219294623U/en active Active
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