CN216466011U - Injection molding machine lock template - Google Patents
Injection molding machine lock template Download PDFInfo
- Publication number
- CN216466011U CN216466011U CN202122491740.8U CN202122491740U CN216466011U CN 216466011 U CN216466011 U CN 216466011U CN 202122491740 U CN202122491740 U CN 202122491740U CN 216466011 U CN216466011 U CN 216466011U
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- movable plate
- injection molding
- die body
- molding machine
- body part
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 17
- 239000007924 injection Substances 0.000 description 17
- 238000007789 sealing Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to a lock template of an injection molding machine. The utility model relates to a lock template of an injection molding machine, which comprises a movable plate, wherein the movable plate comprises a mold body part with a roughly square cross section and an installation part fixedly connected with the mold body part; the die body part is provided with a middle force releasing hole, the whole section of the middle force releasing hole is in a cross shape, the center of the cross shape is overlapped with the center of the square of the movable plate, and the edge of the cross shape is parallel to the edge of the square of the movable plate respectively. Compared with the middle force releasing hole with a circular section, the middle force releasing hole has the advantages that the deformation amount of the center of the die body part can be reduced; the bending deformation of the die body portion can be reduced.
Description
Technical Field
The utility model relates to the technical field of injection molding machines, in particular to a lock template of an injection molding machine.
Background
As shown in fig. 5 and 6, the movable plate of the lock mold plate of the conventional injection molding machine is provided with a middle force releasing hole with a circular cross section, the center of the middle force releasing hole coincides with the center of the square of the movable plate, and the periphery of the middle force releasing hole is provided with an exposed edge extension groove.
When injection molding is performed, pressure of plastic or the like (for example, fluid plastic formed after the plastic is heated) passing through an injection port is large, and acting force is directly applied to the injection mold by the movable plate, so that reaction force of the injection mold received by the movable plate is also large (pressure in tons), and the movable plate may be deformed, so that the injection mold may be deformed, and accuracy of an injection-molded workpiece may be adversely affected.
However, since the movable plate needs to be provided with the center relief hole having a function of giving way or the like according to the design requirement of the movable plate, it is a very important problem to reduce the difference in deformation due to the center relief hole and to improve the accuracy of the injection-molded workpiece.
In summary, the prior art has at least the following technical problems,
first, the amount of deformation at the center of the movable plate is large, and there is room for further improvement.
Secondly, the back of the die body part of the movable plate is uneven and has convex and concave surfaces, which is not beneficial to reducing the bending deformation of the die body part of the movable plate (the bending deformation that the front of the movable plate 1 is integrally convex and the back of the movable plate 1 is integrally concave), and is also not beneficial to maintaining the lock die plate of the injection molding machine.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve or alleviate the first technical problem mentioned above.
The utility model adopts the measure that the injection molding machine lock template comprises a movable plate, wherein the movable plate comprises a die body part with a roughly square cross section and an installation part fixedly connected with the die body part; the die body part is provided with a middle force releasing hole, the whole section of the middle force releasing hole is in a cross shape, the center of the cross shape is overlapped with the center of the square of the movable plate, and the edge of the cross shape is parallel to the edge of the square of the movable plate respectively.
The utility model achieves the effect that the deformation amount at the center of the die body part can be reduced compared with the middle force releasing hole with a circular section.
According to a further technical scheme, the die body is further provided with four side force releasing holes, and the side force releasing holes respectively penetrate through diagonal lines of the die body.
According to a further technical scheme, the die body part is provided with a sealing force releasing arm, so that the sealing force releasing arm at the side force releasing hole is approximately flush with the back surface of the die body part.
The back surface of the die body part can be ensured to be flush, and the maintenance is convenient; and simultaneously, the bending deformation of the die body part can be reduced.
In a further technical scheme, the die body part is provided with a process hole communicated with the side relief hole.
So as to realize the machining and manufacturing processes of core pulling and the like to form the side force releasing hole.
According to the further technical scheme, the edge force releasing holes comprise edge extension grooves.
The wall thickness of the outer side of the middle force releasing hole is relatively uniform, so that the bending deformation of the die body part can be reduced.
According to a further technical scheme, the mounting part comprises a connecting base part fixedly connected with the die body part, and the connecting base part is respectively positioned at the upper side and the lower side of the middle force releasing hole; the wall thickness of the die body part between the side force releasing hole and the middle force releasing hole and close to the connecting base part is the wall thickness of the base part; the wall thickness of the die body part between the side extension groove and the middle force releasing hole is the extension wall thickness, and the extension wall thickness is smaller than the wall thickness of the base part.
The acting force of the mounting part can be uniformly distributed on the die body part, and the bending deformation of the die body part is favorably reduced.
In conclusion, the utility model can achieve the following technical effects,
1, the amount of deformation at the center of the die body portion can be reduced as compared with a center relief hole having a circular cross section.
2, the bending deformation of the die body portion can be reduced.
Drawings
FIG. 1 is a schematic perspective view of an injection molding machine lock mold plate according to an embodiment of the present invention.
FIG. 2 is a side schematic view of an injection molding machine lock mold plate according to an embodiment of the present invention.
FIG. 3 is a schematic illustration of section one SEC 1; part of the thimble holes 29 are not shown.
Fig. 4 is a schematic diagram of profile two SEC 2.
FIG. 5 is a schematic view of an injection molding machine lock mold plate of a prior design.
FIG. 6 is a schematic cross-sectional view of an injection molding machine lock mold plate of a prior design.
FIG. 7 is a perspective view of an injection molding machine lock mold plate of prior design in use.
Section one SEC 1; section two SEC 2; a movable plate 1; the center distance 12 of the movable plate; a die body portion 2; a guide hole 27; a coupling lug 28; a thimble hole 29; a middle release force hole 3; an epitaxial trench 31; the center distance 32 of the epitaxial grooves; a reinforcing rib 39; a side relief hole 4; an edge extension groove 41; a seal release arm 42; a fabrication hole 429; base wall thickness 43; an epitaxial wall thickness 44; a mounting portion 6; a connection base 61; a connecting hole 69; a tailgate assembly 7; a connecting assembly 8; a connecting guide post 81; a linear power member 82; a fixed plate 9; and an injection port 99.
Detailed Description
The following description will be made in conjunction with the accompanying drawings.
As a specific embodiment, the injection molding machine lock mold plate according to the embodiment of the present invention includes a movable plate 1, where the movable plate 1 includes a mold body portion 2 having a substantially square cross section, and a mounting portion 6 fixedly connected to the mold body portion 2.
The body portion 2 is adapted to be connected to an injection mold (not shown), and the body portion 2 is provided with an ejector pin hole 29, through which an ejector pin (not shown, usually provided on an injection molding machine) can eject a workpiece formed by injection molding through the ejector pin hole 29.
The mounting portion 6 is adapted to be coupled to the tailgate assembly 7, and the mounting portion 6 is typically provided with coupling holes 69 for coupling via a pin or the like in a conventional manner.
Prior to use, the movable plate 1 is fixedly attached to the tailgate assembly 7, such as by the mounting portion 6. When the injection mold is used, the movable plate 1 and the tail plate assembly 7 move until the distance between the tail plate assembly 7 and the fixed plate 9 is larger, and then the movable plate 1 and the tail plate assembly 7 are enabled until the distance between the tail plate assembly 7 and the fixed plate 9 is smaller after two parts of an injection mold (not shown in the attached drawing) are respectively fixed on the movable plate 1 and the fixed plate 9; the tail plate component 7 drives the movable plate 1 to move so that two parts of the injection mould are jointed and sealed, and then plastic is injected into the injection mould from an injection port 99 of the fixed plate 9 at high pressure to form a plastic workpiece. The tail plate component 7 drives the movable plate 1 to move, so that the two parts of the injection mould are separated and then taken out to form a plastic workpiece.
Since the pressure of the plastic or the like (for example, fluid plastic formed by heating the plastic) passing through the injection port 99 is high during injection, the reaction force of the injection mold received by the movable plate 1 is also high (pressure in tons) because the movable plate 1 directly applies the acting force to the injection mold, and the movable plate 1 may be deformed, which may further cause deformation of the injection mold and adversely affect the precision of the injection-molded workpiece.
However, according to the design requirement of the movable plate 1, the movable plate 1 needs to be provided with a middle releasing hole 3 with functions of abdicating and the like on the movable plate 1,
the die body part 2 is provided with the well power hole 3 of releasing, and the whole cross-shaped that is of the section of well power hole 3, the center of cross coincides with the center of the square of movable plate 1, just the edge of cross (promptly, state the cross and include that four sections are the extension groove 31 of rectangle, the edge at the cross-shaped center of keeping away from of the section of extension groove 31) is parallel with the edge of the square of movable plate 1 respectively for the four sides of the square of movable plate 1 are parallel with the edge at the cross-shaped center of keeping away from of the section of four extension grooves 31 respectively.
The amount of deformation at the center of the die body portion 2 can be reduced as compared with the center relief hole 3 having a circular cross section. When the material of the lock mold plate of the injection molding machine is the same (all the conventional steel materials) and the shape is different, compared with the middle force releasing hole 3 with a circular section, the deformation amount of the center of the mold body part 2 is reduced from 4.466e-01mm to 3.604e-01 mm.
The distance from the edge of the cross shape to the center of the cross shape is an extension groove center distance 32, the distance from the edge of the movable plate 1 to the center of the square of the movable plate 1 is a movable plate center distance 12, and the extension groove center distance 32 is less than or equal to half of the movable plate center distance 12. The width of the extension groove 31 is generally set according to the volume of the required accommodating part and the like.
The die body part 2 is also provided with four side force releasing holes 4, and the side force releasing holes 4 respectively penetrate through the diagonal lines of the die body part 2.
The mold body part 2 is provided with a sealing force releasing arm 42, so that the sealing force releasing arm 42 at the side force releasing hole 4 is approximately flush with the back surface of the mold body part 2. The back surface of the die body part 2 can be ensured to be flush, and the maintenance is convenient; meanwhile, the sealing force releasing arm 42 can play a supporting role, and the bending deformation of the die body part can be reduced. The die body part 2 is provided with a process hole 429 communicated with the side force releasing hole 4 so as to realize the machining and manufacturing processes of core pulling and the like to form the side force releasing hole 4.
The edge relief holes 4 each include an edge extension groove 41. The wall thickness of the outer side of the middle force releasing hole 3 can be relatively uniform, so that the bending deformation of the die body part can be reduced.
The mounting part 6 comprises a connecting base 61 fixedly connected with the die body part 2, and the connecting base 61 is respectively positioned at the upper side and the lower side of the middle force releasing hole 3; generally, the connection base 61 is mirror-symmetrical with respect to the central plane of the die body 2; the wall thickness of the die body part 2 between the edge relief hole 4 and the middle relief hole 3 and close to the connecting base 61 is the base wall thickness 43; the wall thickness of the mold body part 2 between the side extension groove 41 and the middle relief hole 3 is an extension wall thickness 44, and the extension wall thickness 44 is smaller than the base wall thickness 43. Since the mounting portion 6 applies force to the die body portion 2 through the connecting base portion 61, the wall thickness between the side extension groove 41 and the middle force releasing hole 3 near the connecting base portion 61 needs to have greater strength to balance the force (compared with the die body portion 2 between the side extension groove 41 and the middle force releasing hole 3), so that the force of the mounting portion 6 can be more uniformly distributed on the die body portion 2, which is beneficial to reducing the bending deformation of the die body portion 2.
As used in the present invention, the wording: first, second, etc. do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.
As used in the present invention, the wording: one, etc. do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item.
As used in the present invention, the term indicating orientation or position: top, bottom, side, longitudinal, lateral, middle, center, outer, inner, horizontal, vertical, left, right, above, below, and the like are intended to reflect relative positions, not absolute positions.
The term as used in the present invention: approximate, whole, approximate, close, etc., are words of definition that specify the presence of stated features but allow for certain deviations. The amount of tolerance for a certain deviation may vary depending on the particular context; for example, the specific context in which deviations from size may be relied upon includes, but is not limited to, national standards for dimensional tolerances.
Claims (7)
1. The injection molding machine lock template comprises a movable plate (1), wherein the movable plate (1) comprises a mold body part (2) with a roughly square cross section and a mounting part (6) fixedly connected with the mold body part (2); the die body part (2) is provided with a middle force releasing hole (3),
the cross-shaped force releasing hole is characterized in that the whole cross section of the middle force releasing hole (3) is cross-shaped, the center of the cross shape is overlapped with the center of the square of the movable plate (1), and the edge of the cross shape is parallel to the edge of the square of the movable plate (1) respectively.
2. An injection molding machine lock template according to claim 1, characterized in that the distance from the edge of the cross to the center of the cross is the extension slot center distance (32), the distance from the edge of the movable plate (1) to the center of the square of the movable plate (1) is the movable plate center distance (12), and the extension slot center distance (32) is less than or equal to half the movable plate center distance (12).
3. An injection molding machine lock mold according to claim 1, wherein the mold body portion (2) is further provided with four side relief holes (4), the side relief holes (4) passing through diagonal lines of the mold body portion (2), respectively.
4. A lock die plate for an injection molding machine according to claim 3, wherein the die body portion (2) is provided with a seal release arm (42) such that the seal release arm (42) at the side release hole (4) is substantially flush with the back surface of the die body portion (2).
5. Injection molding machine lock die plate according to claim 4, characterized in that the die body part (2) is provided with a process opening (429) communicating with the side relief opening (4).
6. An injection molding machine lock template according to claim 4, characterized in that the edge relief holes (4) each comprise an edge extension groove (41).
7. An injection molding machine lock die plate according to claim 6, wherein the mounting portion (6) includes a connecting base portion (61) fixedly connected to the die body portion (2), the connecting base portion (61) being located at an upper side and a lower side of the center force releasing hole (3), respectively; the wall thickness of the die body part (2) between the side relief hole (4) and the middle relief hole (3) and close to the connecting base (61) is the base wall thickness (43); the wall thickness of the die body part (2) between the side extension groove (41) and the middle force releasing hole (3) is an extension wall thickness (44), and the extension wall thickness (44) is smaller than the base wall thickness (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122491740.8U CN216466011U (en) | 2021-10-16 | 2021-10-16 | Injection molding machine lock template |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122491740.8U CN216466011U (en) | 2021-10-16 | 2021-10-16 | Injection molding machine lock template |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216466011U true CN216466011U (en) | 2022-05-10 |
Family
ID=81440522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122491740.8U Active CN216466011U (en) | 2021-10-16 | 2021-10-16 | Injection molding machine lock template |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216466011U (en) |
-
2021
- 2021-10-16 CN CN202122491740.8U patent/CN216466011U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231225 Address after: 529700 area B, Heshan industrial city, Heshan City, Jiangmen City, Guangdong Province Patentee after: Guangdong Bishengda Intelligent Equipment Co.,Ltd. Address before: 528300 No. 8, plot 2-2, Fu'an Industrial Zone, Liandu village committee, Leliu sub district office, Shunde District, Foshan City, Guangdong Province Patentee before: GUANGDONG SHUNDE BESTER MACHINERY CO.,LTD. |
|
| TR01 | Transfer of patent right |