CN215550524U - Automatic change injection mold of no trace drawing of patterns - Google Patents

Abstract

The utility model discloses an automatic traceless demoulding injection mould, which relates to the technical field of injection mould equipment and comprises a bottom plate, square iron, a lower mould, a supporting rod, an ejector pin bottom plate, an ejector pin panel, a first pull rod, a second pull rod, an ejector pin, a fixed block, a guide rail, a T-shaped groove, an oil cylinder, a core pulling seat, a T-shaped block, a core pulling seat panel, a hook, a core pulling needle, an upper mould and a panel. According to the utility model, the drawing needle, the T-shaped groove, the core drawing seat and the hook are arranged, the first pull rod, the second pull rod and the thimble are matched, after the product and the drawing needle are ejected upwards, the oil cylinder drives the two drawing needles to move away from the lower die, the product moves along with the drawing needle at the beginning, after a certain distance, the second pull rod limits the product, and the drawing needle continues to move, so that the product and the drawing needle are separated, and the product is taken down by the method, so that traces are not easy to be left on the surface of the product, and the working effect of the device is ensured.

Description

Automatic change injection mold of no trace drawing of patterns

Technical Field

The utility model relates to the technical field of injection mold equipment, in particular to an automatic traceless demolding injection mold.

Background

Injection molding is a method for producing and molding industrial products. The products are generally produced by rubber injection molding and plastic injection molding. The injection molding can be classified into injection molding and die casting. The injection molding is also called injection molding, and is a molding method combining injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors, various shapes from simple to complex and small sizes, and is suitable for the molding processing fields of mass production, products with complex shapes and the like. Injection molding is a process in which a completely molten plastic material is stirred by a screw at a certain temperature, injected into a mold cavity at high pressure, and cooled to solidify to obtain a finished product. The method is suitable for mass production of parts with complex shapes, is one of important processing methods, and generally needs demoulding after injection molding.

In the existing injection mold, the finished product is usually removed by methods such as extrusion and pulling during demolding, which is easy to leave marks on the surface of the finished product and affects the working effect of the device.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an injection mold capable of realizing automatic traceless demolding, so as to solve the problems in the background technology.

In order to solve the technical problems, the utility model provides the following technical scheme: an injection mold for automatic traceless demolding comprises a bottom plate, square irons are symmetrically arranged on two sides of the top of the bottom plate, the tops of the two square irons are provided with the same lower mold, an ejection mechanism is arranged on the top of the bottom plate, two guide rails are symmetrically arranged on two sides of the outer wall of the lower mold, one end of each guide rail is provided with a same oil cylinder, a core pulling seat is sleeved on an output shaft of the oil cylinder, two T-shaped grooves are symmetrically formed in one side, adjacent to the outer wall of each core pulling seat, slidably connected T-shaped blocks are arranged on the inner wall of each T-shaped groove in a matched mode, the outer walls of the two T-shaped blocks are provided with the same core pulling seat panel, a hook is arranged at the bottom of the core pulling seat panel and is slidably connected with the ejection mechanism, a drawing pin is arranged on one side, one end of the drawing pin extends into the lower mold, and the drawing pin is slidably connected with the ejection mechanism, and the top of the lower die is provided with an injection molding mechanism.

Further, the ejection mechanism comprises a plurality of support rods, the plurality of support rods are arranged on the top of the bottom plate, the support rods are positioned on the inner sides of the two square irons, the inner sides of the two square irons are provided with the same thimble bottom plate in sliding connection, the thimble bottom plate is in sliding connection with the support rods, the top of the thimble bottom plate is matched with a thimble panel, the thimble panel is in sliding connection with the support rods, first pull rods are symmetrically arranged on two sides of the top of the thimble panel, one end of each first pull rod extends into the lower die and is in sliding connection with the lower die, second pull rods are symmetrically arranged on the other two sides of the top of the thimble panel, one end of each second pull rod extends into the lower die and is in sliding connection with the lower die, the top of the thimble panel is provided with a plurality of thimbles, and one end of each thimble extends into the lower die, the ejector pin base plate is characterized in that fixed blocks are symmetrically arranged on two sides of the outer wall of the ejector pin base plate, and guide blocks are arranged at the tops of the fixed blocks and used for ejecting a product, the core pulling seat and the ejector pins upwards.

Furthermore, the inside of second pull rod seted up with draw needle assorted spout, first pull rod outer wall both sides seted up with draw needle assorted spacing groove, the spout has guaranteed the stability when drawing the needle side-to-side motion, and the one end of drawing the needle is located the inside of first pull rod, has guaranteed the stability when drawing the needle motion.

Furthermore, four corners at the top of the ejector pin panel are provided with return pins, one end of each return pin extends into the lower die and is connected with the lower die in a sliding mode, and the return pins ensure the stability of the ejector pin panel during movement.

Furthermore, the center of the top of the panel is provided with a positioning ring, the positioning ring is connected with the panel through a bolt, the positioning ring is favorable for fixing the injection molding machine and the panel, and the bolt is connected to enable the positioning ring to be detachable.

Further, the mechanism of moulding plastics includes last mould, go up the mould activity set up in the top of lower mould, go up the mould with the lower mould phase-match, go up the panel that the mould top matching was equipped with swing joint, when going up the mould and being close to with the lower mould, form the chamber of moulding plastics, then carry out the work of moulding plastics.

Furthermore, the top of the guide block is provided with a first slide rail matched with the hook, the inner side of the guide rail is provided with a second slide rail matched with the core pulling seat, the first slide rail ensures the stability of the guide block during movement, and the second slide rail ensures the stability of the core pulling seat during movement.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the drawing needle, the T-shaped groove, the core drawing seat and the hook are arranged, the first pull rod, the second pull rod and the thimble are matched, after the product and the drawing needle are ejected upwards, the oil cylinder drives the two drawing needles to move away from the lower die, the product moves along with the drawing needle at the beginning, after a certain distance, the second pull rod limits the product, and the drawing needle continues to move, so that the product and the drawing needle are separated, and the product is taken down by the method, so that traces are not easy to be left on the surface of the product, and the working effect of the device is ensured.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a front cross-sectional view of the present invention in its entirety;

FIG. 2 is a side sectional view of the present invention as a whole;

FIG. 3 is a top view of the lower die of the present invention;

FIG. 4 is a side view of the present invention in its entirety;

in the figure: 1. a base plate; 2. square iron; 3. a lower die; 4. a support bar; 5. a thimble base plate; 6. a thimble panel; 7. a first pull rod; 8. a second pull rod; 9. a thimble; 10. a fixed block; 11. a guide block; 12. a guide rail; 13. a T-shaped slot; 14. an oil cylinder; 15. a core pulling seat; 16. a T-shaped block; 17. a core-pulling seat panel; 18. hooking; 19. drawing the needle; 20. an upper die; 21. a panel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: an injection mold for automatic traceless demolding comprises a bottom plate 1, square irons 2 are symmetrically arranged on two sides of the top of the bottom plate 1, the same lower mold 3 is arranged on the tops of two square irons 2, an ejection mechanism is arranged on the top of the bottom plate 1 and comprises a plurality of supporting rods 4, the plurality of supporting rods 4 are arranged on the top of the bottom plate 1, the supporting rods 4 are located on the inner sides of the two square irons 2, ejector pin bottom plates 5 which are connected in a sliding mode are arranged on the inner sides of the two square irons 2, the ejector pin bottom plates 5 are connected with the supporting rods 4 in a sliding mode, an ejector pin panel 6 is arranged on the top of the ejector pin bottom plates 5 in a matching mode, the ejector pin panel 6 is connected with the supporting rods 4 in a sliding mode, first pull rods 7 are symmetrically arranged on two sides of the tops of the ejector pin panels 6, one ends of the first pull rods 7 extend into the lower mold 3 and are connected with the lower mold 3 in a sliding mode, the other two sides of the top of the thimble panel 6 are symmetrically provided with a second pull rod 8, one end of the second pull rod 8 extends into the lower die 3 and is connected with the lower die 3 in a sliding manner, the top of the thimble panel 6 is provided with a plurality of thimbles 9, one end of each thimble 9 extends into the lower die 3, two fixing blocks 10 are symmetrically arranged on two sides of the outer wall of the thimble bottom plate 5, the top of each fixing block 10 is provided with a guide block 11, two guide rails 12 are symmetrically arranged on two sides of the outer wall of the lower die 3, one end of each guide rail 12 is provided with a same oil cylinder 14, an output shaft of each oil cylinder 14 is sleeved with a core pulling seat 15, two T-shaped grooves 13 are symmetrically arranged on one side of the outer walls of the two core pulling seats 15, the inner walls of the T-shaped grooves 13 are matched and provided with T-shaped blocks 16 in a sliding manner, the outer walls of the two T-shaped blocks 16 are provided with a same core pulling seat panel 17, and hooks 18 are arranged at the bottom of the core pulling seat panel 17, couple 18 with ejection mechanism sliding connection, two the adjacent one side of core pulling seat panel 17 outer wall is equipped with the needle 19 of taking out, 19 one end of taking out the needle extend to the inside of lower mould 3, the needle 19 with ejection mechanism sliding connection, 3 tops of lower mould are equipped with the mechanism of moulding plastics, the mechanism of moulding plastics includes mould 20, go up the mould 20 activity set up in the top of lower mould 3, go up mould 20 with 3 phase-matchs of lower mould, it is equipped with swing joint's panel 21 to go up the matching of mould 20 tops.

The inside of second pull rod 8 seted up with 19 assorted spouts of drawing needle, 7 outer wall both sides of first pull rod seted up with 19 assorted spacing grooves of drawing needle, the spout has restricted drawing needle 19's direction of motion, has guaranteed the stability when drawing needle 19 side-to-side movement, and the one end of drawing needle 19 moves to the inside of spacing groove, drives the one end of drawing needle 19 and moves when first pull rod 7 rises, has guaranteed the stability when drawing needle 19 upward movement.

Four corners at 6 tops of thimble panel all are equipped with the return pin, return pin one end extend to 3 insides of lower mould and with 3 sliding connection of lower mould, the return pin is along with 6 motions of thimble panel, plays the guide effect to 6 roof pin panels, has guaranteed the stability when 6 roof pin panels up-and-down motion.

The panel 21 top center is equipped with the position circle, the position circle with panel 21 passes through bolted connection, sets up the position that the position circle is convenient for between fixed panel 21 and the injection molding machine, has guaranteed the job stabilization nature of device, and the position circle passes through bolted connection with panel 21 for the position circle can be dismantled, can change to the position circle.

The top of the guide block 11 is provided with a first slide rail matched with the hook 18, the inner side of the guide rail 12 is provided with a second slide rail matched with the core pulling seat 15, the first slide rail limits the movement direction of the hook 18, the stability of the hook 18 during movement is ensured, the second slide rail limits the movement direction of the core pulling seat 15, and the stability of the core pulling seat 15 during movement is ensured.

The implementation mode is specifically as follows: when the injection molding machine is used, the injection molding machine is connected with the panel 21 through the arrangement of the drawing needle 19, the T-shaped groove 13, the core pulling seat 15 and the hook 18, before injection molding work begins, the injection molding machine pushes the upper die 20 and the panel 21 to approach towards the lower die 3, when the upper die 20 and the lower die 3 are tightly attached, the upper die 20 and the lower die 3 form an injection molding cavity, the oil cylinder 14 starts to work, the core pulling seat 15 is pushed to move towards the lower die 3, the T-shaped block 16 continues to twist, the T-shaped block 16 drives the core pulling seat panel 17 and the hook 18 to approach towards the lower die 3, the guide block 11 plays a guide role for the hook 18, the drawing needle 19 moves to the inside of the injection molding cavity along with the core pulling seat panel 17, at the moment, one end of the drawing needle 19 is positioned at the inner side of the first pull rod 7, the drawing needle 19 is connected with the second pull rod 8 in a sliding manner, after the injection molding cavity is completely sealed through the cooperation of the drawing needle 19 and the second pull rod 8, the injection molding machine starts to work, completing the injection molding work, the product begins to cool, pressure maintaining and other molding processes, at this time, the product is located outside the drawing pin 19, after the product is molded, the injection molding machine drives the panel 21 and the upper mold 20 to move upwards, completing the mold opening work, after the mold opening is in place, the ejector rod on the injection molding machine pushes the thimble bottom plate 5 and the thimble panel 6 to move upwards, the support rod 4 and the square iron 2 play a role in guiding the products, the plurality of thimbles 9 are respectively located below the products, the first pull rod 7 and the second pull rod 8 move upwards along with the thimble panel 6, the drawing pin 19 is located inside the first pull rod 7 and the second pull rod 8 and moves upwards along with the thimble panel 6, thereby separating the products from the lower mold 3, simultaneously driving the product and the drawing pin 19 to move upwards, the thimble bottom plate 5 drives the fixed block 10 to move upwards, the fixed block 10 drives the guide block 11 to move upwards, the guide block 11 drives the hook 18 to move upwards so as to drive the core-pulling seat panel 17 and the T-shaped block 16 to move upwards, the T-shaped block 16 slides on the inner side of the T-shaped groove 13, the position of the core-pulling seat 15 is kept fixed, the product is ejected to a proper height and then stops moving, at the moment, the oil cylinder 14 starts working to drive the core-pulling seat 15 to move away from the lower die 3, the T-shaped block 16 moves along with the core-pulling seat 15 so as to drive the core-pulling seat panel 17 and the hook 18 to move away from the lower die 3, the guide block 11 plays a role in guiding the hook 18, the guide rail 12 plays a role in guiding the core-pulling seat 15 so as to ensure the stability of the core-pulling seat 15 during movement, the core-pulling needle 19 moves to the outer side of the lower die 3 along with the core-pulling seat panel 17, when the core-pulling needle 19 starts moving, the second pull rod 8 plays a role in guiding for the core-pulling needle 19, and the product moves along with the core-pulling needle 19 due to the friction force between the core-pulling needle 19 and the product, when the product moves to contact with the second pull rod 8, the movement of the product is stopped, the pull pin 19 continues to move at the moment, so that the product is separated from the pull pin 19, the first pull rod 7 and the second pull rod 8 are higher than the surface of the product, the product is hung above the first pull rod 7 and the second pull rod 8, the ejector pin base plate 5 and the ejector pin panel 6 drive the first pull rod 7 and the second pull rod 8 to reciprocate towards the direction of the base plate 1, so that the first pull rod 7 and the second pull rod 8 are vibrated, the product is vibrated downwards to be collected, the product is taken down in this way, traces are not easy to leave on the surface of the product, the working effect of the device is ensured, and after the product is separated from the device, the device drives the upper die 20 to be close to the lower die 3 again, and the injection molding work is performed again.

The working principle of the utility model is as follows:

referring to the attached drawings 1-4 of the specification, by arranging the drawing needle 19, the T-shaped groove 13, the drawing seat 15 and the hook 18, the first pull rod 7, the second pull rod 8 and the thimble 9 are matched, after the product and the drawing needle 19 are upwards ejected, the oil cylinder 14 drives the two drawing needles 19 to move away from the lower die 3, the product moves along with the drawing needle 19 at the beginning, after a certain distance, the second pull rod 8 limits the product, the drawing needle 19 continues to move, the product and the drawing needle are separated, the product is taken down by the mode, traces are not easy to leave on the surface of the product, and the working effect of the device is ensured.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides an automatic change injection mold of no trace drawing of patterns, includes bottom plate (1), its characterized in that: the drawing core device is characterized in that square irons (2) are symmetrically arranged on two sides of the top of the bottom plate (1), the same lower die (3) is arranged on the tops of the two square irons (2), an ejection mechanism is arranged on the top of the bottom plate (1), two guide rails (12) are symmetrically arranged on two sides of the outer wall of the lower die (3), one end of each guide rail (12) is provided with a same oil cylinder (14), an output shaft of each oil cylinder (14) is sleeved with a drawing core seat (15), two T-shaped grooves (13) are symmetrically formed in one side, adjacent to the outer wall of each drawing core seat (15), of each T-shaped groove (13) is provided with a T-shaped block (16) in a sliding connection in a matching mode, the outer wall of each T-shaped block (16) is provided with a same drawing core seat panel (17), a hook (18) is arranged at the bottom of each drawing core seat panel (17), each hook (18) is in sliding connection with the ejection mechanism, a drawing needle (19) is arranged on one side, adjacent to the outer wall of each drawing core seat panel (17), draw needle (19) one end extend to the inside of lower mould (3), draw needle (19) with ejection mechanism sliding connection, lower mould (3) top is equipped with the mechanism of moulding plastics.

2. An injection mold with automatic traceless demolding according to claim 1, characterized in that: the ejection mechanism comprises a plurality of supporting rods (4), the supporting rods (4) are arranged at the top of the bottom plate (1), the supporting rods (4) are positioned at the inner sides of the two square irons (2), the inner sides of the two square irons (2) are provided with the same thimble bottom plate (5) in sliding connection, the thimble bottom plate (5) is in sliding connection with the supporting rods (4), the top of the thimble bottom plate (5) is provided with a thimble panel (6) in a matching manner, the thimble panel (6) is in sliding connection with the supporting rods (4), the two sides of the top of the thimble panel (6) are symmetrically provided with first pull rods (7), one end of each first pull rod (7) extends into the lower die (3) and is in sliding connection with the lower die (3), the other two sides of the top of the thimble panel (6) are symmetrically provided with second pull rods (8), one end of each second pull rod (8) extends into the lower die (3) and is in sliding connection with the lower die (3), the ejector pin structure is characterized in that a plurality of ejector pins (9) are arranged at the top of the ejector pin panel (6), one ends of the ejector pins (9) extend to the interior of the lower die (3), fixed blocks (10) are symmetrically arranged on two sides of the outer wall of the ejector pin bottom plate (5), and guide blocks (11) are arranged at the tops of the fixed blocks (10).

3. An injection mold with automatic traceless demolding according to claim 2, characterized in that: the inside of the second pull rod (8) is provided with a sliding groove matched with the drawing needle (19), and two sides of the outer wall of the first pull rod (7) are provided with limiting grooves matched with the drawing needle (19).

4. An injection mold with automatic traceless demolding according to claim 2, characterized in that: four corners at the top of the ejector pin panel (6) are provided with return pins, and one end of each return pin extends into the lower die (3) and is in sliding connection with the lower die (3).

5. An injection mold with automatic traceless demolding according to claim 2, characterized in that: the top of the guide block (11) is provided with a first slide rail matched with the hook (18), and the inner side of the guide rail (12) is provided with a second slide rail matched with the core-pulling seat (15).

6. An injection mold with automatic traceless demolding according to claim 1, characterized in that: the injection molding mechanism comprises an upper die (20), wherein the upper die (20) is movably arranged above the lower die (3), the upper die (20) is matched with the lower die (3), and the top of the upper die (20) is matched with a panel (21) which is movably connected.

7. An injection mold for automated traceless demolding according to claim 6, wherein: the center of the top of the panel (21) is provided with a positioning ring, and the positioning ring is connected with the panel (21) through a bolt.

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