CN219855835U - Front mould oblique drawing injection mold structure - Google Patents
Front mould oblique drawing injection mold structure Download PDFInfo
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- CN219855835U CN219855835U CN202320506057.3U CN202320506057U CN219855835U CN 219855835 U CN219855835 U CN 219855835U CN 202320506057 U CN202320506057 U CN 202320506057U CN 219855835 U CN219855835 U CN 219855835U
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- 238000002347 injection Methods 0.000 title claims abstract description 20
- 239000007924 injection Substances 0.000 title claims abstract description 20
- 239000002991 molded plastic Substances 0.000 claims abstract description 3
- 239000004033 plastic Substances 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000005253 cladding Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a front mold oblique drawing injection mold structure, which comprises a front mold plate, a rear mold plate, a middle plate, a stripper plate, an upper fixing plate, a stripper rod and an oblique drawing stripper mechanism, wherein after the front mold plate and the rear mold plate are assembled, a cavity is formed in the front mold plate and the rear mold plate, an injection molded plastic part is arranged in the cavity, and the front mold is provided with a conical inverted buckle inclined in three directions; the upper end of the oblique drawing demolding mechanism is connected to the middle plate, the lower end of the oblique drawing demolding mechanism is coated on the periphery of the conical back-off, the upper part and the lower part of the oblique drawing demolding mechanism are movably connected, the middle plate pulls the front template to separate from the rear template when the mold is opened, the oblique drawing demolding mechanism is pulled out obliquely upwards along with the front template, and the part coated on the periphery of the conical back-off gradually moves upwards along the inclined direction of the conical back-off until the back-off is completely separated; the utility model can utilize the original mold opening mechanism to drive the mechanism to act, so that the back-off part can finish demolding in three inclination directions at one time, the mold structure is simplified, and the mold cost is reduced.
Description
Technical Field
The utility model belongs to the field of injection molds, and particularly relates to a front mold oblique drawing injection mold structure.
Background
In the design of parts, the complicated design of the part die is often caused by no die design experience, so that the manufacturing industry is very common, the investment cost is increased and the subsequent die maintenance is difficult due to the difficulty in die opening, and the manufacturing cost is increased. For example, for the processing of the back-off of the product, the back-off means that the product is provided with a part which prevents the mold from opening or ejecting the product, and for the simple back-off shape, an inclined top or a sliding block is generally additionally arranged in the back-off area to assist the separation of the front mold and the back mold; for the back-off with complex geometry, the setting of the shape of the demoulding slide block becomes complex correspondingly, the production cost of the mould is high, and the required precision is difficult to reach during manufacturing, as shown in fig. 1, an injection moulding product is manufactured, the back-off is inclined on the front mould and has three directions of inclination, if the traditional demoulding mode is adopted, the space is required to be enlarged, the slide block is arranged on the parting surface, or a driving mechanism such as a spring is added, so that the back-off position is ejected during demoulding, and the two demoulding modes have complex steps and are very unstable, thus the existing demoulding mechanism needs to be improved.
Disclosure of Invention
Aiming at the problems and the technical requirements, the utility model provides a front mold oblique drawing injection mold structure, which can utilize an original mold opening mechanism to drive the mechanism to act, so that the back-off part can finish demolding in three inclination directions at one time, the mold structure is simplified, and the mold cost is reduced.
The technical scheme of the utility model is as follows: the front mold oblique drawing injection mold structure comprises a front mold plate, a rear mold plate, a middle plate, a stripper plate, an upper fixing plate, a stripping pull rod and an oblique drawing stripping mechanism, wherein after the front mold plate and the rear mold plate are assembled, a cavity is formed in the front mold plate and the rear mold plate, an injection molding plastic part is arranged in the cavity, and the front mold is provided with a conical inverted buckle inclined in three directions; the front template top is equipped with the medium plate in proper order, takes off flitch and last fixed plate, and oblique drawing of patterns mechanism upper end is connected on the medium plate, and the lower extreme cladding is on the toper back-off global, swing joint between upper portion and the lower part of oblique drawing of patterns mechanism, and the medium plate is pulling the front template and is breaking away from the back template when the mould is opened, and oblique drawing of patterns mechanism is followed oblique upward and is taken out, and the part of cladding at toper back-off global moves gradually along the inclined direction of toper up until breaking away from the back-off completely. In this scheme, oblique drawing of patterns demoulding mechanism connects on the medium plate, before the whole drawing of patterns of plastic parts, as long as move the medium plate upward earlier, just can make the toper back-off deviate from, when having avoided whole drawing of patterns, mould and back-off take place to interfere.
Further, take out demoulding mechanism to one side includes fixed block, guide block, take out seat to one side and take out to one side, fixed block fixed connection take out the seat to one side on the medium plate, fixed block bottom connection, the guide block is fixed to be set up at the front bezel upper surface, guide slot in the guide block is unanimous with take out seat cross-section shape to one side, take out the seat to one side and pass the guide slot downwards perpendicularly and take out swing joint to one side, take out the bottom top to one side on the plastic part to one side. The fixed block moves along with the middle plate, and provides driving force for the vertical movement of the inclined drawing seat, and the guide block can ensure the stability of the movement direction of the inclined drawing seat.
Furthermore, the bottom surface of the inclined drawing seat is provided with a T-shaped groove, the inclined drawing top is provided with a T-shaped bulge, the inclined drawing top is correspondingly arranged in the T-shaped groove, the inclined drawing can swing in a certain angle range relative to the T-shaped groove, and the inclined drawing seat are detachably connected. The T-shaped groove is low in assembly difficulty, and the oblique drawing has a certain degree of freedom in at least two directions, so that the conical back-off is prevented from being damaged during demolding.
Further, take out including wrapping post and jack-up post to one side, the jack-up post is pegged graft in wrapping post core, and the jack-up post bottom pushes up on the toper back-off top surface, and wrapping post top is connected with taking out the seat to one side, and the bottom cladding is on the toper back-off global.
Furthermore, the oblique drawer is also provided with a positioning shaft, the jacking column is inserted downwards from the top end of the wrapping column, an arc-shaped groove is formed in the peripheral surface of the jacking column, two corresponding penetrating holes are formed in two sides of the peripheral surface of the wrapping column, the diameters of the arc-shaped groove, the penetrating holes and the positioning shaft are consistent, and the positioning shaft penetrates through the arc-shaped groove and the penetrating holes to lock and position the wrapping column and the jacking column. The bottom space between the wrapping post and the jacking post actually forms a cavity for the back-off, and after the plastic part is formed, the wrapping post and the jacking post are simultaneously separated, so that absolute positioning and locking between the wrapping post and the jacking post are kept.
Further, a limiting groove is formed in the front template, a limiting screw is installed in the limiting groove, the bottom of the limiting screw moves up and down in the limiting groove, the top end of the limiting screw penetrates through the front template, and the limiting screw is fixedly connected to the middle plate.
Further, the demolding pull rod is connected with the upper fixing plate and vertically penetrates through the stripping plate, the middle plate, the front template and the rear template in sequence, and can pull the middle plate upwards, so that the middle plate and the front template are separated, and the separation distance is not longer than the movable distance of the limit screw.
Compared with the prior art, the utility model has the beneficial effects that: 1) The original mold opening action can drive the inclined drawing demolding mechanism to move, so that the plastic part product is demolded at the back-off part between the integral demolding, and the integral demolding stability is improved; 2) The inclined drawing demolding mechanism utilizes the T-shaped groove to connect the driving part and the demolding part, can realize the movable connection of small swing, and can slightly adjust the angle along the inclined direction of the conical back-off in the demolding process, so that hard touch between the inclined drawing demolding mechanism and a plastic product is avoided; 3) The oblique drawing seat is detachably connected with the oblique drawing seat, the oblique drawing seat is formed by assembling three simple components including a wrapping column, a jacking column and a positioning shaft, the oblique drawing seat is convenient to disassemble and assemble, convenient to replace, easy to realize in precision, and greatly reduces the production cost of the die.
Drawings
FIG. 1 is a block diagram of an injection molded product of the present utility model;
FIG. 2 is a perspective view of the structure of the front mold oblique drawing injection mold of the utility model;
FIG. 3 is a schematic view of an oblique drawing demolding mechanism in accordance with the present utility model;
FIG. 4 is an internal block diagram of the present utility model;
FIG. 5 is an assembly view of a limit screw and stripper rod of the present utility model;
FIG. 6 is a mating view of the oblique drawing die release mechanism and the molded part of the present utility model;
FIG. 7 is an internal structural diagram of the oblique drawer of the present utility model;
marked in the figure as: the upper fixing plate 1, the stripper plate 2, the middle plate 3, the front template 4, the plastic 5, the conical back-off 51, the rear template 6, the inclined drawing demoulding mechanism 7, the fixing block 71, the guide block 72, the inclined drawing seat 73, the T-shaped groove 731, the inclined drawing 74, the wrapping column 741, the T-shaped bulge 741, the penetrating hole 7412, the jacking column 742, the positioning shaft 743, the demoulding pull rod 8 and the limit screw 9.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
As shown in fig. 1, the plastic part 5 produced by the mold structure of the present utility model has a conical back-off 51 inclined in three directions on the front mold of the plastic part 5; the front mold oblique drawing injection mold structure comprises a front mold plate 4, a rear mold plate 6, a middle plate 3, a stripper plate 2, an upper fixing plate 1, a demolding pull rod 8 and an oblique drawing demolding mechanism 7, wherein after the front mold plate 4 and the rear mold plate 6 are assembled, a cavity is formed inside, and an injection molded plastic part 5 is arranged in the cavity.
The upper end of the oblique drawing demoulding mechanism 7 is connected to the middle plate 3, the lower end of the oblique drawing demoulding mechanism 7 is coated on the peripheral surface of the conical back-off 51, the upper part and the lower part of the oblique drawing demoulding mechanism 7 are movably connected, the middle plate 3 pulls the front template 4 to separate from the rear template 6 when the mould is opened, the oblique drawing demoulding mechanism 7 is pulled out obliquely upwards, and the part coated on the peripheral surface of the conical back-off 51 moves upwards gradually along the inclined direction of the conical until the back-off is completely separated.
The front template 4 is provided with a limit groove (not shown in the figure), a limit screw 9 is arranged in the limit groove, the bottom of the limit screw 9 moves up and down in the limit groove, the top end of the limit screw 9 penetrates through the front template 4, and the limit screw 9 is fixedly connected to the middle plate 3. The demoulding pull rod 8 is connected with the upper fixing plate 1 and vertically and downwards penetrates through the stripper plate 2, the middle plate 3, the front template 4 and the rear template 6 in sequence, and the demoulding pull rod 8 can pull the middle plate 3 upwards to enable the middle plate 3 and the front template 4 to be separated, and the separation distance is not longer than the movable distance of the limit screw 9.
The oblique drawing demolding mechanism 7 is connected to the middle plate 3, and before the whole plastic part is demolded, the middle plate 3 is moved upwards, so that the conical reverse buckle 51 can be separated from the plastic part in advance, and the subsequent whole plastic part mold opening is facilitated; the oblique drawing demoulding mechanism 7 comprises a fixed block 71, a guide block 72, an oblique drawing seat 73 and an oblique drawing 74, wherein the fixed block 71 is fixedly connected to the middle plate 3, the bottom of the fixed block 71 is connected with the oblique drawing seat 73, the guide block 72 is fixedly arranged on the upper surface of the front template 4, the cross section of a guide groove in the guide block 72 is consistent with that of the oblique drawing seat 73, the oblique drawing seat 73 vertically downwards passes through the guide groove and is movably connected with the oblique drawing 74, and the bottom end of the oblique drawing 74 is propped against the plastic part 5. The fixed block 71 moves along with the middle plate to provide driving force for the inclined drawing seat 73 to move up and down, the guide block 72 can ensure the stability of the moving direction of the inclined drawing seat 73, and the inclined drawing 74 needs to ensure a certain range of freedom degree when the inclined drawing seat 73 is separated due to the inclination of the conical back-off 51 in three directions, so that the inclined drawing 74 and the inclined drawing seat 73 are movably connected.
The bottom surface of the inclined drawing seat 73 is provided with a T-shaped groove 731, the top of the inclined drawing 74 is provided with a T-shaped protrusion 7411, the top of the inclined drawing 74 is correspondingly arranged in the T-shaped groove 731, the inclined drawing 74 can swing within a certain angle range relative to the T-shaped groove 731, and the inclined drawing 74 and the inclined drawing seat 73 are detachably connected. Specifically, the oblique suction 74 includes a wrapping column 741 and a top column 742, the top column 742 is inserted into the core of the wrapping column 741, the bottom end of the top column 742 is propped against the top surface of the tapered reverse buckle 51, the top of the wrapping column 741 is connected with the oblique suction seat 73, and the bottom is wrapped on the circumferential surface of the tapered reverse buckle 51. The oblique drawer 74 is also provided with a positioning shaft 743, the jacking column 742 is inserted downwards from the top end of the wrapping column 741, an arc-shaped groove is formed in the peripheral surface of the jacking column 742, two corresponding penetrating holes 7412 are formed in two sides of the peripheral surface of the wrapping column 741, the diameters of the arc-shaped groove, the penetrating holes 7412 and the positioning shaft 743 are consistent, and the positioning shaft 743 penetrates through the arc-shaped groove and the penetrating holes 7412 to lock and position the wrapping column 741 and the jacking column 742.
The die opening process comprises the following steps: firstly, the stripper plate 2 and the middle plate 3 are opened, after a certain distance is opened, the middle plate 3 is clamped by the stripper pull rod 8, the middle plate 3 is pulled by the stripper pull rod 8, the middle plate 3 is separated from the front template 4, and at the moment, the pulled distance between the stripper plate 2 and the middle plate 3 provides an upward moving space for the middle plate 3; the middle plate 3 drives the oblique drawing seat 73 and the limit screw 9 to move upwards simultaneously, and as the limit screw 9 and the front template 4 are provided with the limit groove, the limit screw 9 is pulled upwards to a certain distance and is clamped by the limit groove, so that the disengaging distance between the middle plate 3 and the front template 4 is the maximum stroke in the limit groove, and the stroke is the required distance that the oblique drawing 74 just breaks away from the back-off. The inclined drawing seat 73 is pulled by the fixed block, is drawn upwards under the guidance of the guide block 72, the inclined drawing 74 is pulled upwards along with the inclined drawing, and can slightly swing in the process of upward movement of the inclined drawing 74 so as to adapt to the inclination angle of the conical back-off 51, so that the conical back-off 51 is prevented from being damaged by hard touch, and the inclined drawing 74 is completely separated from the product surface after the middle plate 3 stops moving; and then the upper fixing plate 1 and the stripper plate 2 are opened to finish the demoulding action of the product stub bars, the front template 4 and the rear template 6 are opened to completely separate the front template 4 from the plastic part 5, and the ejector pins in the rear template 6 eject the product to finish the mould opening production action.
While the utility model has been described with respect to several preferred embodiments, the scope of the utility model is not limited thereto, and any changes and substitutions that would be apparent to one skilled in the art within the scope of the utility model are intended to be included within the scope of the utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a front mould is taken out injection mold structure to one side which characterized in that: the mold comprises a front mold plate, a rear mold plate, a middle plate, a stripper plate, an upper fixing plate, a stripper pull rod and an oblique drawing and stripping mechanism, wherein after the front mold plate and the rear mold plate are assembled, a cavity is formed in the front mold plate and the rear mold plate, an injection molded plastic part is arranged in the cavity, and the front mold is provided with a conical inverted buckle inclined in three directions; the front template top is equipped with the medium plate in proper order, takes off flitch and last fixed plate, and oblique drawing of patterns mechanism upper end is connected on the medium plate, and the lower extreme cladding is on the toper back-off global, swing joint between upper portion and the lower part of oblique drawing of patterns mechanism, and the medium plate is pulling the front template and is breaking away from the back template when the mould is opened, and oblique drawing of patterns mechanism is followed oblique upward and is taken out, and the part of cladding at toper back-off global moves gradually along the inclined direction of toper up until breaking away from the back-off completely.
2. The front mold oblique drawing injection mold structure as defined in claim 1, wherein: the oblique drawing demoulding mechanism comprises a fixed block, a guide block, an oblique drawing seat and an oblique drawing, wherein the fixed block is fixedly connected to the middle plate, the bottom of the fixed block is connected with the oblique drawing seat, the guide block is fixedly arranged on the upper surface of the front template, the cross section of a guide groove in the guide block is consistent with that of the oblique drawing seat, the oblique drawing seat vertically downwards passes through the guide groove and is in oblique drawing movable connection, and the oblique drawing bottom is propped against a plastic part.
3. The front mold oblique drawing injection mold structure as defined in claim 2, wherein: the bottom surface of the inclined drawing seat is provided with a T-shaped groove, the inclined drawing top is provided with a T-shaped bulge, the inclined drawing top is correspondingly arranged in the T-shaped groove, the inclined drawing can swing in a certain angle range relative to the T-shaped groove, and the inclined drawing seat are detachably connected.
4. A front mold oblique drawing injection mold structure as defined in claim 3, wherein: the oblique drawing comprises a wrapping column and a jacking column, wherein the jacking column is inserted into the core part of the wrapping column, the bottom end of the jacking column is propped against the top surface of the conical back-off, the top of the wrapping column is connected with the oblique drawing seat, and the bottom of the wrapping column is wrapped on the circumferential surface of the conical back-off.
5. The front mold oblique drawing injection mold structure as defined in claim 4, wherein: the oblique drawer is further provided with a positioning shaft, the jacking column is inserted downwards from the top end of the wrapping column, an arc-shaped groove is formed in the peripheral surface of the jacking column, two corresponding penetrating holes are formed in the two sides of the peripheral surface of the wrapping column, the diameters of the arc-shaped groove, the penetrating holes and the positioning shaft are consistent, and the positioning shaft penetrates through the arc-shaped groove and the penetrating holes to lock and position the wrapping column and the jacking column.
6. The front mold oblique drawing injection mold structure as defined in claim 4, wherein: the front template is provided with a limiting groove, a limiting screw is arranged in the limiting groove, the bottom of the limiting screw moves up and down in the limiting groove, the top end of the limiting screw penetrates through the front template, and the limiting screw is fixedly connected to the middle plate.
7. The front mold oblique drawing injection mold structure as defined in claim 6, wherein: the demolding pull rod is connected with the upper fixing plate and vertically and downwards penetrates through the stripper plate, the middle plate, the front template and the rear template in sequence, and can pull the middle plate upwards to enable the middle plate and the front template to be separated, and the separation distance is not longer than the movable distance of the limit screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320506057.3U CN219855835U (en) | 2023-03-16 | 2023-03-16 | Front mould oblique drawing injection mold structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320506057.3U CN219855835U (en) | 2023-03-16 | 2023-03-16 | Front mould oblique drawing injection mold structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219855835U true CN219855835U (en) | 2023-10-20 |
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ID=88371775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320506057.3U Active CN219855835U (en) | 2023-03-16 | 2023-03-16 | Front mould oblique drawing injection mold structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219855835U (en) |
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2023
- 2023-03-16 CN CN202320506057.3U patent/CN219855835U/en active Active
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