CN112936755A - Take adjustable function's injection mold - Google Patents
Take adjustable function's injection mold Download PDFInfo
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- CN112936755A CN112936755A CN202110253769.4A CN202110253769A CN112936755A CN 112936755 A CN112936755 A CN 112936755A CN 202110253769 A CN202110253769 A CN 202110253769A CN 112936755 A CN112936755 A CN 112936755A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
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Abstract
The invention belongs to the technical field of injection molds, and particularly relates to an injection mold with an adjustable function, which comprises a fixed mold and a movable mold, wherein the fixed mold is arranged on a fixed template of the existing injection molding machine, and the movable mold is arranged on a movable template of the existing injection molding machine and is matched with the fixed mold; according to the invention, the sliding block in the guide rail drives the movable mould core to approach the positioning angle iron through the hinge pin by twisting the knob, and when the side surface and the upper end surface of the movable mould core are tightly attached to the positioning angle iron, the positioning angle iron finally completes accurate positioning butt joint of the movable mould core and the fixed mould core, so that the first injection molding cavity and the second injection molding cavity are completely butted without dislocation; the four fastening bolts are used for fastening and positioning the positioned movable mold core, so that the movable mold core is not displaced in the injection molding process, the transition part of the movable mold core and the fixed mold core on the product is smoother, the unqualified product caused by the dislocation of the movable mold core and the fixed mold core is avoided, and the qualification rate and the quality of the product are improved.
Description
Technical Field
The invention belongs to the technical field of injection molds, and particularly relates to an injection mold with an adjustable function.
Background
At present, the traditional injection mold is a tool for producing plastic products, and particularly relates to a method for injecting heated and melted plastic into a mold cavity from an injection molding machine at high pressure, and obtaining a formed product after cooling and solidification. The injection mold consists of a movable mold and a fixed mold, the movable mold is arranged on a movable template of the injection molding machine, and the fixed mold is arranged on a fixed template of the injection molding machine. The fixed die comprises a fixed die seat and a fixed die core, wherein the fixed die core is fixed on the fixed die seat through a fastener; the movable mould comprises a movable mould seat and a movable mould core, and the movable mould core is fixed on the movable mould seat through a fastener. At present, because the fixed mold core and the movable mold core cannot be adjusted after being fixed, after the mold is used for a period of time, the fixed mold and the movable mold are staggered with each other during manufacturing due to various reasons, so that an error exists in butt joint between the movable mold core and the fixed mold core; or a certain error exists in the installation of the die, so that an error exists in the butt joint between the movable die core and the fixed die core; so that the injection molding cavity formed between the movable mold core and the fixed mold core is staggered, and the surface smoothness of an injection molded product is lower, thereby influencing the quality of the product.
The invention designs an injection mold with an adjustable function to solve the problems.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention discloses an injection mold with an adjustable function, which is realized by adopting the following technical scheme.
In the description of the present invention, it should be noted that the terms "inside", "below", "upper" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention usually place when using, and are only used for convenience of description and simplification of description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
The utility model provides a take adjustable function's injection mold which characterized in that: the injection molding machine comprises a fixed die and a movable die, wherein the fixed die is arranged on a fixed template of the injection molding machine, and the movable die is arranged on a movable template of the injection molding machine and matched with the fixed die.
The fixed die comprises a fixed die seat, a fixed die core and positioning angle iron, wherein a fixed die core with a first injection molding cavity is embedded into a first positioning groove fixedly arranged on the side surface of the fixed die seat, and a second injection molding hole which is positioned on the side surface of the fixed die core and is transversely communicated with the first injection molding cavity is butted with a first injection molding hole on the side wall of the first positioning groove; the positioning angle iron is fixedly installed on the outer side of the notch of the first positioning groove, and two inner corner surfaces of the positioning angle iron are coplanar with the top surface and the side surface of the first positioning die core respectively.
The movable die comprises a movable die holder, a movable die core, a fastening bolt, a guide rail, a slide block, a rack, a hinge pin, a gear, a second transmission shaft, a second bevel gear, a first transmission shaft, a knob, an arc-shaped trapezoid guide block and a reset plate spring, wherein a second positioning groove is formed in the side surface of the movable die holder, a fan-shaped swinging groove is formed in the side wall, opposite to the notch, of the second positioning groove, and two through threaded holes are formed in the top surface and the bottom surface of the second positioning groove respectively; an arc-shaped trapezoidal sliding groove is formed in the side wall, opposite to the notch, of the fan-shaped swing groove, a wheel groove is formed in the movable die base, and the wheel groove is transversely communicated with the fan-shaped swing groove through a second shaft hole; the side surface of the movable die holder is provided with a first shaft hole which is transversely communicated with the wheel groove, and the central axis of the first shaft hole is vertical to the central axis of the second shaft hole.
A movable mould core of which the side surface is provided with a second injection molding cavity matched with the first injection molding cavity is arranged in a second positioning groove on the movable mould base, and four fastening bolts are respectively screwed into four threaded holes on the upper end surface and the lower end surface of the movable mould base to be matched with the movable mould core; the guide rail is arranged in the fan-shaped swinging groove in a sliding fit manner through an arc-shaped trapezoid guide block arranged on the back surface of the guide rail and an arc-shaped trapezoid sliding groove, and a third shaft hole positioned on the side surface of the lower end of the guide rail is opposite to the second shaft hole; the gear is arranged at the lower end of the guide groove in the guide rail through a second transmission shaft which is in key fit with the gear and transversely penetrates through the second shaft hole and the third shaft hole; the sliding block is embedded in a guide groove arranged in the guide rail in a sliding manner, and the hinge pin is arranged on the side surface of the sliding block and is matched with a round hole bearing on the side surface of the movable die core through a movable groove on the guide rail; the rack is arranged on the lower end face of the sliding block and is meshed with the gear; the second bevel gear is arranged on the shaft end of the second transmission shaft in the gear groove in a key fit mode; the first bevel gear and the knob are respectively arranged at two ends of the first transmission shaft in a key matching mode; two ends of a reset plate spring arranged at the lower end of the guide rail are respectively connected with the inner wall of the fan-shaped swing groove and the outer side surface of the guide rail.
Two inner side surfaces of the positioning angle iron are respectively matched with the top surface and the side surface of the movable mould core, the fixed mould core is matched with the movable mould core, and the first injection molding cavity is matched with the second injection molding cavity.
As a further improvement of the technology, the arc center of the arc-shaped trapezoid sliding chute is positioned on the central axis of the second shaft hole.
As a further improvement of the technology, the arc radius of the arc-shaped trapezoidal sliding groove is equal to that of the arc-shaped trapezoidal guide block, so that the arc-shaped trapezoidal guide block can slide along the arc-shaped trapezoidal sliding groove without obstacles when the guide rail in the movable mould swings around the central axis of the second shaft hole.
As a further improvement of the technology, the inclination angle of the guide rail in the initial state is 45 degrees, so that the movable die core can be ensured to move towards and cling to one inner corner surface of the positioning angle iron after clinging to the other inner corner surface, and the purpose of quickly installing and debugging the die is achieved.
As a further improvement of the technology, the matching point of the hinge pin and the movable mold core is located at the center of the side surface of the movable mold core, so that the movable mold core does not swing around the central axis of the hinge pin in the moving process before meeting the positioning angle iron, and the situation that the four corners of the movable mold core abut against the inner wall of the second positioning groove on the movable mold base due to the swing of the movable mold core around the central axis of the hinge pin is avoided, and the installation and debugging of the mold cannot be completed.
As a further improvement of the technology, the arc center of the arc-shaped trapezoidal guide block is positioned on the central axis of the third shaft hole, and the third shaft hole on the guide rail is in butt joint with the second shaft hole on the movable mold base, so that the arc-shaped trapezoidal guide block can smoothly slide along the arc-shaped trapezoidal sliding groove without interference of the groove wall of the arc-shaped trapezoidal sliding groove.
As a further improvement of the technology, the second transmission shaft is matched with a second shaft hole on the guide rail through a bearing.
As a further improvement of the technology, the corner below the movable mold core, which is close to the reset plate spring, is tightly attached to the corresponding corner on the second positioning groove in the initial state, so that before the mold is debugged, the positioning angle iron on the fixed mold can smoothly enter the gap between the movable mold base and the movable mold core, and the mold is convenient to install and debug.
As a further improvement of the technology, lubricating oil is coated between the sliding block and the guide rail.
The shape matching injection molding of the first injection molding cavity and the second injection molding cavity in the invention is only a cup-shaped schematic structure, and the specific injection molding shape is made by the shape of a mold required to be produced.
The reset plate spring of the invention has the function of resetting the micro-swing of the guide rail while supporting the guide rail.
Compared with the traditional injection mold, the injection mold disclosed by the invention has the advantages that the sliding block in the guide rail drives the movable mold core to approach the positioning angle iron through the hinge pin by twisting the knob, and when the side surface and the upper end surface of the movable mold core are tightly attached to the positioning angle iron, the positioning angle iron finally completes the accurate positioning butt joint of the movable mold core and the fixed mold core, so that the first injection molding cavity and the second injection molding cavity are completely butted without dislocation; the four fastening bolts are used for fastening and positioning the positioned movable mold core, so that the movable mold core is not displaced in the injection molding process, the transition part of the movable mold core and the fixed mold core on the product is smoother, the disqualification of the product caused by the dislocation of the movable mold core and the fixed mold core is avoided, and the qualification rate and the quality of the product are improved; the invention has simple structure and better use effect.
Drawings
Fig. 1 is a schematic perspective view of an injection mold as a whole.
Fig. 2 is an overall sectional view of the injection mold.
FIG. 3 is a schematic cross-sectional view of the movable mold and the fixed mold.
FIG. 4 is a schematic perspective view of a stationary mold.
FIG. 5 is a schematic perspective view of the stationary mold base.
FIG. 6 is a schematic perspective view of the moving mold.
FIG. 7 is a schematic sectional view of the movable mold.
FIG. 8 is a schematic cross-sectional view of the movable mold seat, the guide rail, the slider, the rack, the second transmission shaft, and the second bevel gear.
Fig. 9 is a schematic diagram of the combination of the movable mold core, the guide rail, the second transmission shaft, the second bevel gear, the first transmission shaft and the torsion wheel.
FIG. 10 is a schematic view of the movable mold seat, the fastening bolt, the guide rail and the spiral spring.
FIG. 11 is a schematic perspective view of a movable die holder.
FIG. 12 is a schematic cross-sectional perspective view of the inner race and the first axial bore of the movable mold base.
FIG. 13 is a schematic view of the guide rail, trapezoidal guide block and hinge pin combination.
FIG. 14 is a cross-sectional view of the guide rail, the slider, the rack, the gear and the second shaft.
Fig. 15 is a perspective schematic view of a guide rail.
Fig. 16 is a schematic sectional view of the guide rail.
Number designation in the figures: 1. fixing a mold; 2. moving the mold; 3. fixing a die holder; 4. a first injection molding hole; 5. fixing a mold core; 6. a first injection molding cavity; 7. a second injection molding hole; 8. positioning angle iron; 9. a first positioning groove; 10. a movable die holder; 11. a second positioning groove; 12. a sector-shaped swinging groove; 13. an arc-shaped trapezoidal chute; 14. a wheel groove; 15. a second shaft hole; 16. a first shaft hole; 17. a threaded hole; 18. a movable mould core; 19. a second injection molding cavity; 20. fastening a bolt; 21. a guide rail; 22. a guide groove; 23. a movable groove; 24. a third shaft hole; 25. a slider; 26. a rack; 27. a hinge pin; 28. a gear; 29. a second drive shaft; 30. a second bevel gear; 31. a first bevel gear; 32. a first drive shaft; 33. a knob; 34. an arc-shaped trapezoidal guide block; 35. and a reset plate spring.
Detailed Description
The drawings are schematic illustrations of the implementation of the present invention to facilitate understanding of the principles of structural operation. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.
As shown in fig. 1 and 2, the injection molding machine comprises a fixed die 1 and a movable die 2, wherein the fixed die 1 is arranged on a fixed die 1 plate of the injection molding machine, and the movable die 2 is arranged on a movable die 2 plate of the injection molding machine and is matched with the fixed die 1.
As shown in fig. 4, the fixed mold 1 comprises a fixed mold base 3, a fixed mold core 5 and a positioning angle iron 8, wherein as shown in fig. 3, the fixed mold core 5 with a first injection molding cavity 6 is embedded in a first positioning groove 9 fixedly installed on the side surface of the fixed mold base 3; as shown in fig. 4 and 5, a second injection hole 7 which is positioned on the side surface of the core insert 5 and is transversely communicated with the first injection cavity 6 is butted with the first injection hole 4 on the side wall of the first positioning groove 9; the positioning angle iron 8 is fixedly arranged on the outer side of the notch of the first positioning groove 9, and two inner corner surfaces of the positioning angle iron 8 are coplanar with the top surface and the side surface of the first positioning die core 5 respectively.
As shown in fig. 6 and 8, the movable mold 2 includes a movable mold base 10, a movable mold core 18, a fastening bolt 20, a guide rail 21, a slider 25, a rack 26, a hinge pin 27, a gear 28, a second transmission shaft 29, a second bevel gear 30, a first bevel gear 31, a first transmission shaft 32, a knob 33, an arc-shaped trapezoidal guide block 34, and a return plate spring 35, wherein as shown in fig. 11, a second positioning groove 11 is formed on a side surface of the movable mold base 10, a fan-shaped swing groove 12 is formed on a side wall of the second positioning groove 11 opposite to the notch, and two through threaded holes 17 are respectively formed on a top surface and a bottom surface of the second positioning groove 11; an arc-shaped trapezoidal sliding groove 13 is formed in the side wall, opposite to the notch, of the fan-shaped swinging groove 12; as shown in fig. 12, a wheel groove 14 is formed inside the movable mold base 10, and the wheel groove 14 is transversely communicated with the fan-shaped swing groove 12 through a second shaft hole 15; the side surface of the movable die holder 10 is provided with a first shaft hole 16 which is transversely communicated with the wheel groove 14, and the central axis of the first shaft hole 16 is vertical to the central axis of the second shaft hole 15.
As shown in fig. 6 and 7, a movable mold core 18, which is provided with a second injection molding cavity 19 on a side surface thereof, and which is matched with the first injection molding cavity 6, is installed in a second positioning groove 11 of the movable mold base 10, and four fastening bolts 20 are screwed into four threaded holes 17 on the upper and lower end surfaces of the movable mold base 10, respectively, and are matched with the movable mold core 18; as shown in fig. 8, 9 and 10, the guide rail 21 is installed in the sector-shaped swing groove 12 by sliding fit of the arc-shaped trapezoidal guide block 34 installed on the back surface thereof and the arc-shaped trapezoidal sliding groove 13, and the third shaft hole 24 located on the side surface of the lower end of the guide rail 21 is opposite to the second shaft hole 15; as shown in fig. 8, 15 and 16, the gear 28 is mounted in the guide groove 22 in the guide rail 21 by a second transmission shaft 29 which is in key fit with the gear and traverses the second shaft hole 15 and the third shaft hole 24; the slide block 25 is embedded in the guide groove 22 arranged in the guide rail 21 in a sliding manner, and the hinge pin 27 is arranged on the side surface of the slide block 25 and is matched with the round hole bearing on the side surface of the movable die core 18 through the movable groove 23 on the guide rail 21; as shown in fig. 8 and 14, a rack 26 is mounted on the lower end surface of the slider 25 and engaged with a gear 28; as shown in fig. 8 and 9, a second bevel gear 30 is mounted on the shaft end of the second transmission shaft 29 in the wheel groove 14 by means of key fitting; the first bevel gear 31 and the knob 33 are respectively installed at both ends of the first transmission shaft 32 in a key-fitting manner; as shown in fig. 10, both ends of the return plate spring 35 mounted at the lower end of the guide rail 21 are connected to the inner wall of the sector-shaped swing groove 12 and the outer side surface of the guide rail 21, respectively.
As shown in fig. 2 and 3, two inner side surfaces of the positioning angle iron 8 are respectively matched with the top surface and the side surface of the movable mold core 18, the fixed mold core 5 is matched with the movable mold core 18, and the first injection molding cavity 6 is matched with the second injection molding cavity 19.
As shown in fig. 11, the arc center of the arc-shaped trapezoidal sliding groove 13 is located on the central axis of the second shaft hole 15.
As shown in fig. 10 and 13, the arc radius of the arc-shaped trapezoidal sliding groove 13 is equal to the arc radius of the arc-shaped trapezoidal guide block 34, so that the arc-shaped trapezoidal guide block slides along the arc-shaped trapezoidal sliding groove 13 without hindrance when the guide rail 21 in the movable mold 2 swings around the central axis of the second shaft hole 15.
As shown in fig. 10, the inclination angle of the guide rail 21 in the initial state is 45 degrees, so as to ensure that the movable die core 18 moves towards and clings to one inner corner surface of the positioning angle iron 8 after clinging to the other inner corner surface, thereby achieving the purpose of quickly installing and debugging the die.
As shown in fig. 3, the matching point of the hinge pin 27 and the movable mold core 18 is located at the center of the side surface of the movable mold core 18, so that the movable mold core 18 does not swing around the central axis of the hinge pin 27 during the movement process before meeting the positioning angle iron 8, and the situation that the four corners of the movable mold core 18 abut against the inner wall of the second positioning groove 11 on the movable mold base 10 due to the swing around the central axis of the hinge pin 27, so as to avoid the failure of the installation and debugging of the mold due to the swinging of the movable mold core 18.
As shown in fig. 13, 15 and 16, the arc center of the arc-shaped trapezoidal guide block 34 is located on the central axis of the third shaft hole 24, and since the third shaft hole 24 on the guide rail 21 is abutted against the second shaft hole 15 on the movable mold base 10, the arc-shaped trapezoidal guide block 34 can smoothly slide along the arc-shaped trapezoidal sliding groove 13 without interference of the groove wall of the arc-shaped trapezoidal sliding groove 13.
As shown in fig. 8, the second transmission shaft 29 is in bearing fit with the second shaft hole 15 of the guide rail 21.
As a further improvement of the present technology, the corner below the movable mold core 18 close to the reset plate spring 35 is tightly attached to the corresponding corner on the second positioning groove 11 in the initial state, so as to ensure that the positioning angle iron 8 on the fixed mold 1 can smoothly enter the gap between the movable mold base 10 and the movable mold core 18 before the mold is debugged, so as to facilitate the installation and debugging of the mold.
As shown in fig. 8, the slider 25 and the guide rail 21 are coated with lubricating oil.
The form-fitting injection of the first injection moulding cavity 6 and the second injection moulding cavity 19 according to the invention is a schematic structure only in the form of a cup, the specific injection moulding shape being produced by the shape of the mould to be produced.
The reset plate spring 35 of the present invention is used for resetting the slight swing of the guide rail 21 while supporting the guide rail 21.
The working process of the invention is as follows: before a product is produced, firstly, a movable die 2 arranged on a movable die 2 plate of an existing injection molding machine is controlled to approach a fixed die 1 arranged on a fixed die 1 plate of the existing injection molding machine, so that positioning angle irons 8 arranged on notches of first positioning grooves 9 of a fixed die base 3 enter a gap between a movable die base 10 and a movable die core 18 for a certain depth, and a second injection molding cavity 19 does not interfere with the adjusting movement of the movable die core 18; at this time, the knob 33 located outside the movable mold base 10 is twisted, the knob 33 drives the first bevel gear 31 to rotate through the first transmission shaft 32, the first bevel gear 31 drives the second transmission shaft 29 to rotate through the second bevel gear 30 engaged with the first bevel gear, the second transmission shaft 29 drives the gear 28 engaged with the second transmission shaft to rotate, the gear 28 drives the slider 25 to move upwards along the guide slot 22 with the inclination of 45 degrees through the rack 26 engaged with the gear, the guide block drives the movable mold core 1845 to move upwards in an inclined angle through the hinge pin 27, when two surfaces of the corner on the movable mold core 18 engaged with the positioning angle iron 8 are respectively contacted with and tightly attached to two surfaces of the inner corner of the positioning angle iron 8, the corresponding corner of the movable mold core 18 is completely attached to the inner corner of the positioning angle iron 8, the second injection molding cavity 19 in the movable mold core 18 is completely attached to the first injection molding cavity 6 in the fixed mold core 5, and then the four fastening bolts 20 on the upper, the relative position between the movable mold core 18 and the movable mold base 10 is fixed, and the movable mold core 18 and the movable mold base 10 are prevented from slightly deviating after the movable mold core 18 is separated from the positioning angle iron 8; the relative position adjustment of the movable mold core 18 and the fixed mold core 5 is finished.
In the adjusting process of the movable mold core 18, if two surfaces of the corner of the movable mold core 18, which are matched with the positioning angle iron 8, are simultaneously contacted with two surfaces of the inner corner of the positioning angle iron 8, the knob 33 is continuously twisted to enable the movable mold core 18 to be tightly attached to the positioning angle iron 8, and then the four fastening bolts 20 on the upper end surface and the lower end surface of the fixed mold base 3 are rotated to enable the relative position between the movable mold core 18 and the movable mold base 10 to be fixed; if the side surface of the corner matched with the positioning angle iron 8 on the movable die core 18 is firstly contacted with the side surface of the inner corner of the positioning angle iron 8, continuously twisting the knob 33, so that the knob 33 sequentially passes through the first transmission shaft 32, the first bevel gear 31, the second bevel gear 30, the second transmission shaft 29, the gear 28 and the rack 26 to drive the sliding block 25 to continuously slide upwards along the guide groove 22 and continuously keep away from the first transmission shaft 32, the distance between the sliding block 25 and the first transmission shaft 32 is continuously increased, and the sliding block 25 drives the movable die core 18 to continuously move through the hinge pin 27; the side surface of the corner of the positioning angle iron 8 blocks the movable die core 18, so that the movable die core 18 moves along the side surface of the corner of the positioning angle iron 8 to the top surface of the corner of the positioning angle iron 8; the movable mold core 18 and the hinge pin 27 rotate relatively, meanwhile, the movable mold core 18 drives the guide rail 21 to swing upwards around the central axis of the first transmission shaft 32 through the hinge pin 27, and the reset plate spring 35 is stretched to deform; when the movable mold core 18 moves upward along the side surface of the inner corner of the positioning angle iron 8 and is in contact with and clings to the top surface of the inner corner of the positioning angle iron 8, the second injection molding cavity 19 in the movable mold core 18 is completely butted with the first injection molding cavity 6 in the fixed mold core 5, then the four fastening bolts 20 on the upper end surface and the lower end surface of the fixed mold base 3 are rotated, so that the relative position between the movable mold core 18 and the movable mold base 10 is fixed, and the relative position adjustment between the movable mold core 18 and the fixed mold core 5 is finished.
In the adjusting process of the movable die core 18, if the upper end surface of the corner of the movable die core 18, which is matched with the positioning angle iron 8, is firstly contacted with the top surface of the inner corner of the positioning angle iron 8, the knob 33 is continuously twisted, so that the knob 33 sequentially passes through the first transmission shaft 32, the first bevel gear 31, the second bevel gear 30, the second transmission shaft 29, the gear 28 and the rack 26 to drive the sliding block 25 to continuously slide upwards along the guide groove 22 and continuously move away from the first transmission shaft 32, the distance between the sliding block 25 and the first transmission shaft 32 is continuously increased, and the sliding block 25 drives the movable die core 18 to continuously move through the hinge pin 27; the top surface of the corner of the positioning angle iron 8 blocks the movable die core 18, so that the movable die core 18 moves to the side surface of the inner corner of the positioning angle iron 8 along the top surface of the corner of the positioning angle iron 8; the movable mold core 18 and the hinge pin 27 rotate relatively, meanwhile, the movable mold core 18 drives the guide rail 21 to swing downwards around the central axis of the first transmission shaft 32 through the hinge pin 27, and the reset plate spring 35 is compressed to deform; when the movable mold core 18 moves along the top surface of the inner corner of the positioning angle iron 8 and is contacted and clung to the side surface of the inner corner of the positioning angle iron 8, the second injection molding cavity 19 in the movable mold core 18 is completely butted with the first injection molding cavity 6 in the fixed mold core 5, then the four fastening bolts 20 on the upper end surface and the lower end surface of the fixed mold base 3 are rotated, so that the relative position between the movable mold core 18 and the movable mold base 10 is fixed, and the relative position adjustment of the movable mold core 18 and the fixed mold core 5 is finished.
When the mold of the invention needs to be detached and installed on another injection molding machine, the movable mold 2 installed on the movable mold 2 plate of the existing injection molding machine is controlled to be separated from the fixed mold 1 installed on the fixed mold 1 plate of the existing injection molding machine, then the four fastening bolts 20 are twisted to return to the initial position and the limitation on the movable mold core 18 is removed, then the knob 33 is rotated reversely, so that the knob 33 drives the slide block 25 to move downwards along the guide groove 22 and return to the initial position through the first transmission shaft 32, the first bevel gear 31, the second bevel gear 30, the second transmission shaft 29, the gear 28 and the rack 26 in sequence, and the slide block 25 drives the movable mold core 18 to return to the initial position through the hinge pin 27; the reset plate spring 35 releases energy and restores the original state, so that the movable die core 18 swings back around the central axis of the second transmission shaft 29 to the initial state to prepare for the next adjustment of the movable die core 18.
After the injection mold is installed and debugged, the injection molding machine injects liquid injection molding raw materials into a closed space formed by a first injection molding cavity 6 and a second injection molding cavity 19 through a first injection molding hole 4 and a second injection molding hole 7; the whole injection molding process adopts the prior art.
In conclusion, the invention has the beneficial effects that: the sliding block 25 in the guide rail 21 drives the moving die core 18 to approach the positioning angle iron 8 through the hinge pin 27 by twisting the knob 33, and when the side surface and the upper end surface of the moving die core 18 are tightly attached to the positioning angle iron 8, the positioning angle iron 8 finally completes the accurate positioning butt joint of the moving die core 18 and the fixed die core 5, so that the first injection molding cavity 6 and the second injection molding cavity 19 are completely butted without dislocation; the four fastening bolts 20 are used for fastening and positioning the positioned movable mold core 18, so that the movable mold core 18 does not displace in the injection molding process, the transition part of the movable mold core 18 and the fixed mold core 5 on the product is smoother, the disqualification rate and the quality of the product caused by the dislocation of the movable mold core 18 and the fixed mold core 5 are avoided, and the qualification rate and the quality of the product are improved.
Claims (3)
1. The utility model provides a take adjustable function's injection mold which characterized in that: the injection molding machine comprises a fixed die and a movable die, wherein the fixed die is arranged on a fixed template of the injection molding machine, and the movable die is arranged on a movable template of the injection molding machine and matched with the fixed die;
the fixed die comprises a fixed die seat, a fixed die core and positioning angle iron, wherein a fixed die core with a first injection molding cavity is embedded into a first positioning groove fixedly arranged on the side surface of the fixed die seat, and a second injection molding hole which is positioned on the side surface of the fixed die core and is transversely communicated with the first injection molding cavity is butted with a first injection molding hole on the side wall of the first positioning groove; the positioning angle iron is fixedly arranged on the outer side of the notch of the first positioning groove, and two inner corner surfaces of the positioning angle iron are respectively coplanar with the top surface and the side surface of the first positioning die core;
the movable die comprises a movable die holder, a movable die core, a fastening bolt, a guide rail, a slide block, a rack, a hinge pin, a gear, a second transmission shaft, a second bevel gear, a first transmission shaft, a knob, an arc-shaped trapezoid guide block and a reset plate spring, wherein a second positioning groove is formed in the side surface of the movable die holder, a fan-shaped swinging groove is formed in the side wall, opposite to the notch, of the second positioning groove, and two through threaded holes are formed in the top surface and the bottom surface of the second positioning groove respectively; an arc-shaped trapezoidal sliding groove is formed in the side wall, opposite to the notch, of the fan-shaped swing groove, a wheel groove is formed in the movable die base, and the wheel groove is transversely communicated with the fan-shaped swing groove through a second shaft hole; a first shaft hole which is transversely communicated with the wheel groove is formed in the side surface of the movable die holder, and the central axis of the first shaft hole is vertical to the central axis of the second shaft hole;
a movable mould core of which the side surface is provided with a second injection molding cavity matched with the first injection molding cavity is arranged in a second positioning groove on the movable mould base, and four fastening bolts are respectively screwed into four threaded holes on the upper end surface and the lower end surface of the movable mould base to be matched with the movable mould core; the guide rail is arranged in the fan-shaped swinging groove in a sliding fit manner through an arc-shaped trapezoid guide block arranged on the back surface of the guide rail and an arc-shaped trapezoid sliding groove, and a third shaft hole positioned on the side surface of the lower end of the guide rail is opposite to the second shaft hole; the gear is arranged in a guide groove in the guide rail through a second transmission shaft which is in key fit with the gear and transversely penetrates through the second shaft hole and the third shaft hole; the sliding block is embedded in a guide groove arranged in the guide rail in a sliding manner, and the hinge pin is arranged on the side surface of the sliding block and is matched with a round hole bearing on the side surface of the movable die core through a movable groove on the guide rail; the rack is arranged on the lower end face of the sliding block and is meshed with the gear; the second bevel gear is arranged on the shaft end of the second transmission shaft in the gear groove in a key fit mode; the first bevel gear and the knob are respectively arranged at two ends of the first transmission shaft in a key matching mode; two ends of a reset plate spring arranged at the lower end of the guide rail are respectively connected with the inner wall of the fan-shaped swing groove and the outer side surface of the guide rail;
two inner side surfaces of the positioning angle iron are respectively matched with the top surface and the side surface of the movable mould core, the fixed mould core is matched with the movable mould core, and the first injection molding cavity is matched with the second injection molding cavity;
the arc radius of the arc-shaped trapezoid sliding chute is equal to that of the arc-shaped trapezoid guide block, so that the arc-shaped trapezoid guide block can slide along the arc-shaped trapezoid sliding chute without obstacles when the guide rail in the moving die swings around the central axis of the second shaft hole;
the arc center of the arc-shaped trapezoidal sliding chute is positioned on the central axis of the second shaft hole;
the arc radius of the arc-shaped trapezoidal sliding chute is equal to that of the arc-shaped trapezoidal guide block;
the inclination angle of the guide rail in the initial state is 45 degrees;
the matching point of the hinge pin and the movable mould core is positioned at the center of the side surface of the movable mould core;
the arc center of the arc-shaped trapezoidal guide block is positioned on the central axis of the third shaft hole;
the corner below the movable mold core close to the reset plate spring is tightly attached to the corresponding corner on the second positioning groove in the initial state.
2. The injection mold with the adjustable function according to claim 1, characterized in that: and the second transmission shaft is matched with a second shaft hole on the guide rail through a bearing.
3. The injection mold with the adjustable function according to claim 1, characterized in that: lubricating oil is coated between the sliding block and the guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110253769.4A CN112936755A (en) | 2019-03-06 | 2019-03-06 | Take adjustable function's injection mold |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910167081.7A CN109774071B (en) | 2019-03-06 | 2019-03-06 | Adjustable injection mold |
| CN202110253769.4A CN112936755A (en) | 2019-03-06 | 2019-03-06 | Take adjustable function's injection mold |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910167081.7A Division CN109774071B (en) | 2019-03-06 | 2019-03-06 | Adjustable injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112936755A true CN112936755A (en) | 2021-06-11 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110253769.4A Withdrawn CN112936755A (en) | 2019-03-06 | 2019-03-06 | Take adjustable function's injection mold |
| CN201910167081.7A Active CN109774071B (en) | 2019-03-06 | 2019-03-06 | Adjustable injection mold |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910167081.7A Active CN109774071B (en) | 2019-03-06 | 2019-03-06 | Adjustable injection mold |
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| Country | Link |
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| CN (2) | CN112936755A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109702965A (en) * | 2019-03-08 | 2019-05-03 | 徐嘉辉 | A kind of adjustable injection mold |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05169455A (en) * | 1991-12-24 | 1993-07-09 | Matsushita Electric Works Ltd | Installation device of mold |
| JPH0834042A (en) * | 1994-07-22 | 1996-02-06 | Japan Steel Works Ltd:The | Mold clamping device of injection molding machine |
| CN208484148U (en) * | 2018-07-10 | 2019-02-12 | 中山市卓鹏塑胶制品有限公司 | A kind of adjustable plastic mold |
-
2019
- 2019-03-06 CN CN202110253769.4A patent/CN112936755A/en not_active Withdrawn
- 2019-03-06 CN CN201910167081.7A patent/CN109774071B/en active Active
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| CN109774071B (en) | 2021-04-20 |
| CN109774071A (en) | 2019-05-21 |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210611 |
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| WW01 | Invention patent application withdrawn after publication |