CN220163086U - Ox horn runner stub bar anti-drop mechanism - Google Patents
Ox horn runner stub bar anti-drop mechanism Download PDFInfo
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- CN220163086U CN220163086U CN202321959574.2U CN202321959574U CN220163086U CN 220163086 U CN220163086 U CN 220163086U CN 202321959574 U CN202321959574 U CN 202321959574U CN 220163086 U CN220163086 U CN 220163086U
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- gate
- horn
- insert
- runner
- stub bar
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- 239000000463 material Substances 0.000 claims abstract description 46
- 230000004323 axial length Effects 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims 3
- 230000002265 prevention Effects 0.000 claims 2
- 238000000465 moulding Methods 0.000 description 12
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to a ox horn gate stub bar anti-falling mechanism which comprises a first gate insert, wherein a ox horn gate is arranged in the first gate insert, a forming hole which is used for forming a positioning material handle and communicated with the ox horn gate is formed in the first gate insert, the mechanism also comprises a second gate insert and a gate thimble, the second gate insert is connected to the lower end of the first gate insert, the gate thimble is vertically and movably connected in the second gate insert, the top end of the gate thimble is axially connected with a connecting part and the connecting part extends into the forming hole, the cross section of the connecting part is in the shape of an equilateral triangle, and three corners of the equilateral triangle are arc-shaped and are attached to the inner wall of the forming hole; the technical problem that the manipulator material taking head is difficult due to the fact that the depth of the extending part extending into the columnar containing cavity needs to be deepened when the size of the ox horn pouring gate is large due to the material head bulletproof ejection structure in the prior art is solved.
Description
Technical Field
The utility model relates to the technical field of dies, in particular to a ox horn gate stub bar anti-falling mechanism.
Background
The ox horn gate is often required to be arranged in the die, part of the ox horn gate is required to be designed into the gate insert according to the requirement of product molding, a molding hole which is used for forming a positioning material handle and communicated with the ox horn gate is also formed in the gate insert, and when the ox horn gate is ejected, the sprue ejector pin ejects the stub bar in the ox horn gate through the positioning material handle, and after the stub bar is ejected, the stub bar is taken out through the manipulator. However, the stub bar of the ox horn gate can be elastically deformed when being ejected, and in the ejection process, the stub bar can be directly ejected out of the ox horn gate to fall, so that the material cannot be taken by using a manipulator, and the recycling of the stub bar is not utilized. Chinese patent CN113601790a discloses an ejection structure for preventing a hard rubber stub bar from bouncing off, which limits the stub bar by providing a columnar cavity and an extension part to prevent the stub bar from bouncing off. However, when the ox horn gate is thicker and the size is larger, the elastic deformation of the stub bar during ejection is increased, so that the stub bar is prevented from being ejected, the depth of the cylindrical cavity is required to be deepened, and the connection between the extension part and the stub bar is tighter along with the deepening of the depth, so that the material taking head of the manipulator is difficult.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a ox horn pouring gate material head anti-falling mechanism so as to solve the technical problem that the material head of a manipulator is difficult to take due to the fact that when a ox horn pouring gate is thicker and the size of the ox horn pouring gate is larger, an extending part needs to be deepened to extend into the depth of a columnar containing cavity.
In order to solve the technical problems, the utility model provides a ox horn gate material head anti-falling mechanism which comprises a first gate insert, wherein a ox horn gate is arranged in the first gate insert, a forming hole which is used for forming a positioning material handle and communicated with the ox horn gate is formed in the first gate insert, the ox horn gate anti-falling mechanism further comprises a second gate insert and a gate thimble, the second gate insert is connected to the lower end of the first gate insert, the gate thimble is vertically and movably connected in the second gate insert, the top end of the gate thimble is axially connected with a connecting part and the connecting part stretches into the forming hole, the cross section of the connecting part is of an equilateral triangle, and three corners of the equilateral triangle are arc-shaped and are attached to the inner wall of the forming hole.
After the structure is adopted, the ox horn gate stub bar anti-falling mechanism has the following advantages: the molded positioning material handle is connected with the stub bar, and the connecting part stretches into the molding hole, so that the molded positioning material handle is connected with the connecting part, and when the stub bar is ejected out by the gate thimble, the positioning material handle is always connected with the connecting part, so that the stub bar cannot pop out and fall, and a mechanical arm can be used for taking out the stub bar, so that the stub bar is convenient to recycle; the cross section of the connecting part is designed into an arc equilateral triangle which is attached to the inner wall of the forming hole, so that the formed positioning material handle is of an open structure, the packing force between the positioning material handle and the connecting part is reduced, and even if the connecting part stretches into the connecting part deeply, the packing force between the positioning material handle and the connecting part is still small, so that the manipulator can conveniently take out the stub bar, and therefore, the stretching depth of the connecting part can be adjusted according to the length and the size of the ox horn gate, and the stub bar can not fly when the manipulator is convenient to take materials; besides, the triangular cross section of the connecting part ensures sufficient material of the positioning material handle after molding, prevents the positioning material handle from being deformed and broken during ejection, and ensures the strength of the positioning material handle.
As an improvement, the axial length of the part of the connecting part extending into the forming hole is 8-12mm longer than the axial length of the ox horn part of the ox horn gate; by adopting the structure, the extending depth of the connecting part is adjusted according to the length of the ox horn gate, so that the manipulator is convenient to take materials and the stub bar is ensured not to fly.
As an improvement, the number of the gate ejector pins is two, the number of the molding holes is two, and the top end of each gate ejector pin is connected with a connecting part extending into the molding holes; by adopting the structure, the stability during ejection is improved.
As an improvement, a connecting portion of a gate spike closer to a ox horn portion of the ox horn gate spike is longer than a connecting portion of the other gate spike; by adopting the structure, the gate thimble which is closer to the ox horn part is used as a main stress point, and the connecting part of the other gate thimble is shorter, so that the force between the gate thimble and the stub bar can be balanced, and the stub bar is further prevented from being sprung.
As an improvement, the bottom end of the first sprue insert is provided with a protruding part, the top end of the second sprue insert is provided with a groove, the protruding part is clamped in the groove, and the first sprue insert is connected with the second sprue insert through a bolt; by adopting the structure, the device has the advantages of simple structure and convenient connection.
Drawings
FIG. 1 is a schematic view of a structure of a connecting portion and a forming hole portion according to the present utility model.
Fig. 2 is a schematic diagram of the overall structure of the present utility model.
FIG. 3 is a schematic view of an exploded structure of a first gate insert and a second gate insert portion of the present utility model.
Reference numerals: 1. a first gate insert; 2. ox horn gate; 3. forming a hole; 4. a second gate insert; 5. a gate thimble; 6. a connection part; 9. a protruding portion; 10. a groove.
Detailed Description
The utility model relates to a ox horn gate stub bar anti-falling mechanism which is described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 3, the ox horn gate stub bar anti-falling mechanism comprises a first gate insert 1, wherein a ox horn gate 2 is arranged in the first gate insert 1, a forming hole 3 which is used for forming a positioning material handle and communicated with the ox horn gate 2 is formed in the first gate insert 1, and the lower end of the forming hole 3 penetrates through the first gate insert 1; the novel plastic injection molding machine further comprises a second gate insert 4 and a gate thimble 5, wherein the second gate insert 4 is connected to the lower end of the first gate insert 1, the gate thimble 5 is vertically movably connected in the second gate insert 4, the top end of the gate thimble 5 is axially connected with a connecting portion 6, the connecting portion 6 extends into the molding hole 3, the cross section of the connecting portion 6 is of an equilateral triangle, and three corners of the equilateral triangle are arc-shaped and are attached to the inner wall of the molding hole 3.
If the connecting part 6 stretches into too deeply, the connection with the positioning material handle is too tight, the mechanical arm is difficult to take out a piece, if the connecting part 6 stretches into too shallow, when the design of the ox horn gate 2 is relatively thick, the elastic deformation of the material head is larger, the positioning material handle can be bent during ejection, and the material head can fly during ejection; therefore, as shown in fig. 1, the section of the forming hole 3 is circular, the section of the connecting part 6 is equilateral triangle, and three corners of the equilateral triangle are arc-shaped and are attached to the inner wall of the forming hole 3, so that the positioning material handle after forming is of a slit structure, the wrapping force between the positioning material handle and the connecting part 6 is reduced, and even if the connecting part 6 stretches into the connecting part deeply, the wrapping force between the positioning material handle and the connecting part is still small, so that the manipulator is convenient to take out the stub bar, therefore, the stretching depth of the connecting part 6 can be adjusted according to the length of the ox horn gate 2, and the axial length of the part of the connecting part 6 stretching into the forming hole 3 is 8-12mm, preferably 10mm longer than the axial length of the ox horn gate 2, so that the stub bar is ensured not to fly when the manipulator is convenient to take materials; besides, the triangular cross section of the connecting part 6 ensures that the formed positioning material handle is sufficient in material consumption, prevents the positioning material handle from being deformed and broken during ejection, and ensures the strength of the positioning material handle.
As shown in fig. 2, there are two gate ejector pins 5, and two molding holes 3, and the top end of each gate ejector pin 5 is connected with a connecting part 6 extending into the molding hole 3; the connecting part 6 of the gate thimble 5 which is closer to the ox horn part of the ox horn gate 2 in the two gate thimbles 5 is longer than the connecting part 6 of the other gate thimble 5, the gate thimble 5 which is closer to the ox horn part is used as a main stress point, and the connecting part 6 of the other gate thimble 5 is shorter so as to balance the force between the gate thimble 5 and the stub bar and further prevent the stub bar from being sprung. In addition, the diameter of the gate thimble 5 is the same as the inner diameter of the molding hole 3, so that the gate thimble 5 is fully contacted with the positioning material handle to be stably ejected, and the center of the connecting part 6, namely the center of the gate thimble 5.
As shown in fig. 3, the bottom end of the first gate insert 1 is provided with a protruding portion 9, the top end of the second gate insert 4 is provided with a groove 10, the protruding portion 9 is clamped in the groove 10, and the first gate insert 1 and the second gate insert 4 are connected through bolts.
The molded positioning material handle is connected with the stub bar, and the connecting part 6 extends into the molding hole 3, so the molded positioning material handle is connected with the connecting part 6; after the mold is opened, the gate ejector pin 5 moves upwards, so that a positioning material handle and a material head are ejected, and a specific ejection structure and an ejection mode of the gate ejector pin 5 are all in the prior art and are not repeated here; because the positioning material handle is always connected with the connecting part 6, the material head cannot pop out and fall, and a mechanical arm can be used for taking out the material head, so that the material head is convenient to recycle; after that, the mold is retracted, and the gate ejector pins 5 are retracted.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above-described one embodiment, and all other examples obtained by those skilled in the art without making any inventive effort are within the scope of the present utility model.
Claims (5)
1. The utility model provides a ox horn runner stub bar anti-drop mechanism, includes first runner insert (1), be equipped with ox horn runner (2) in first runner insert (1), be equipped with in first runner insert (1) be used for forming the location material handle and with the cross-section of ox horn runner (2) intercommunication is circular shape shaping hole (3), its characterized in that still includes second runner insert (4) and runner thimble (5), second runner insert (4) are connected first runner insert (1) lower extreme, runner thimble (5) are in along vertical swing joint in second runner insert (4), runner thimble (5) top are connected with connecting portion (6) along the axial just connecting portion (6) stretch into in shaping hole (3), the cross-section of connecting portion (6) is equilateral triangle, equilateral triangle's three angles all arc and with shaping hole (3) inner wall pastes mutually.
2. A ox horn gate head drop prevention mechanism according to claim 1, wherein the axial length of the portion of the connecting portion (6) extending into the forming hole (3) is 8-12mm longer than the axial length of the ox horn portion of the ox horn gate (2).
3. The ox horn gate stub bar anti-falling mechanism according to claim 1, wherein the number of the gate ejector pins (5) is two, the number of the forming holes (3) is two, and the top end of each gate ejector pin (5) is connected with the connecting part (6) extending into the forming hole (3).
4. A ox horn gate head drop prevention mechanism according to claim 3, wherein the connecting portion (6) of the gate ejector pins (5) of two gate ejector pins (5) which are closer to the ox horn portion of the ox horn gate (2) is longer than the connecting portion (6) of the other gate ejector pin (5).
5. The ox horn gate stub bar anti-falling mechanism according to claim 1, wherein the bottom end of the first gate insert (1) is provided with a protruding portion (9), the top end of the second gate insert (4) is provided with a groove (10), the protruding portion (9) is clamped in the groove (10) and the first gate insert (1) is connected with the second gate insert (4) through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321959574.2U CN220163086U (en) | 2023-07-25 | 2023-07-25 | Ox horn runner stub bar anti-drop mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321959574.2U CN220163086U (en) | 2023-07-25 | 2023-07-25 | Ox horn runner stub bar anti-drop mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220163086U true CN220163086U (en) | 2023-12-12 |
Family
ID=89054402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321959574.2U Active CN220163086U (en) | 2023-07-25 | 2023-07-25 | Ox horn runner stub bar anti-drop mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220163086U (en) |
-
2023
- 2023-07-25 CN CN202321959574.2U patent/CN220163086U/en active Active
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