Precise injection mold capable of continuously ejecting and demolding

Abstract

The utility model discloses a precise injection mold capable of continuously ejecting and demolding, which comprises a base, a lower mold fixedly connected to the upper surface of the base, a motor fixedly connected to the side edge of a support, a threaded rod fixedly connected to the driving end of the motor, a sliding seat movably sleeved and connected to the threaded rod, and a first gear rotationally connected to the upper surface of the base. A connecting rod is hinged to the end, away from the hollow plate, of the inclined rod, and a top piece is fixedly connected to the top end of the connecting rod; the ejection piece can be arranged on the lower portion of the lower die, the motor is used for driving the threaded rod to rotate so as to drive the sliding base to move, the connecting rod is pushed through linkage of the shifting block, the hollow rod and the inclined rod, and then the ejection piece is pushed to eject a product out of the lower die. Along with the movement of the sliding seat, the effect of automatically and continuously ejecting all products can be achieved, the ejection action is rapid and continuous, and the purpose of improving the production efficiency is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a precision injection mold capable of continuous ejection and demoulding. Background Art

[0002] A precision injection mold is a device that injects resin material into a metal model to obtain a product with a certain shape. It uses precise processing methods to mass-produce parts with complex shapes and ensures high precision and high quality of the products by controlling the temperature, pressure and other parameters of the mold.

[0003] After the injection molding is completed, the existing injection mold needs to remove the product. Usually, the ejection method is adopted, and the product is ejected from the bottom of the mold through a driving mechanism. However, since the mold usually produces multiple products at a time, the ejection device needs to be manually controlled to eject the products one by one during ejection. As a result, there will be a time interval between the ejections of the products, resulting in a slow overall ejection speed, which affects the production efficiency of the product. Therefore, a precision injection mold that can continuously eject and demold is proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a precision injection mold capable of continuous ejection and demoulding.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The top of the supporting cam is fixedly connected to the support frame, and the top of the supporting cam is fixedly connected to the support frame. The side of the supporting cam is fixedly connected to the motor, and the driving end of the motor is fixedly connected to the threaded rod. The movable sleeve of the threaded rod is connected to the slide seat. The upper surface of the base is rotatably connected to gear 1, and the upper surface edge of the gear 1 is fixedly connected to a shift block. The outer surface of the shift block is provided with a hollow plate, and the middle part of the top of the hollow plate is hinged with an oblique rod, and the end of the oblique rod away from the hollow plate is hinged with a connecting rod. The top of the connecting rod is fixedly connected to the top piece, and the top of the slide seat is rotatably connected to the vertical rod.

[0007] Preferably, the top piece is inserted into the bottom end of the lower mold, and the top of the top piece extends into the bottom of the injection groove of the lower mold.

[0008] Preferably, the gears 1 are distributed along a linear matrix of the threaded rods, the number of the gears 1 is the same as the number of separation intervals of the injection groove of the lower mold, and the side of the slide is fixedly connected with a rack 1.

[0009] Preferably, a second gear is fixedly connected to the lower portion of the outer surface of the vertical pole, a second rack is fixedly connected to the side of the support, and an eccentric wheel is fixedly connected to the top of the vertical pole.

[0010] Preferably, a crossbeam is fixedly connected to the outer surface of the pillar, and a push rod is interspersed on the surface of the crossbeam.

[0011] Preferably, a semicircular block is fixedly connected to the end of the push rod, and a spring is sleeved on the outer surface of the push rod.

[0012] Preferably, a hydraulic cylinder is provided on the upper surface of the top plate, and a driving end of the hydraulic cylinder is fixedly connected to the upper mold.

[0013] The utility model has the following beneficial effects:

[0014] 1. By setting the ejector under the lower mold, the motor drives the threaded rod to rotate to drive the slide to move. The rack 1 on the side of the slide engages with the gear 1 in sequence during the movement, thereby driving the gear 1 to rotate. The shift block, hollow rod and inclined rod are then linked to push the connecting rod, thereby pushing the ejector to eject the product from the lower mold. As the slide moves, all products can be automatically and continuously ejected. The ejection action is fast and continuous, achieving the purpose of improving production efficiency.

[0015] 2. By setting a crossbeam and a push rod in the middle of the pillar, the slider engages with gear 2 and rack 2 during movement, which in turn drives the vertical pole to rotate and drives the eccentric wheel to squeeze the semicircular block. The semicircular block pushes the push rod, which slides along the crossbeam and pushes the ejected product to the outside of the lower mold, achieving the purpose of automatically pushing the product. The pushing and ejecting processes are carried out continuously, further improving the production efficiency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a precision injection mold capable of continuous ejection and demoulding proposed by the present invention;

[0017] Figure 2 This is a schematic diagram of the lower mold structure of a precision injection mold capable of continuous ejection and demoulding proposed by the present invention;

[0018] Figure 3 This is a schematic diagram of the ejection structure of a precision injection mold capable of continuous ejection and demoulding, proposed by the present invention;

[0019] Figure 4 This is a schematic diagram of a pushing structure of a precision injection mold capable of continuous ejection and demoulding proposed by the present invention;

[0020] In the figure: 1. Base; 2. Lower mold; 3. Pillar; 4. Top plate; 5. Hydraulic cylinder; 6. Upper mold; 7. Support; 8. Motor; 9. Threaded rod; 10. Slide; 11. Gear 1; 12. Shift block; 13. Hollow plate; 14. Inclined rod; 15. Connecting rod; 16. Top piece; 17. Rack 1; 18. Vertical rod; 19. Gear 2; 20. Rack 2; 21. Eccentric wheel; 22. Crossbeam; 23. Push rod; 24. Semicircular block; 25. Spring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1 A precision injection mold capable of continuous ejection and demolding includes a base 1, a lower mold 2 is fixedly connected to the upper surface of the base 1, a pillar 3 is fixedly connected to the edge of the base 1, a top plate 4 is fixedly connected to the top of the pillar 3, a hydraulic cylinder 5 is provided on the upper surface of the top plate 4, and the driving end of the hydraulic cylinder 5 is fixedly connected to the upper mold 6. The hydraulic cylinder 5 drives the upper mold 6 to move downward and merge with the lower mold 2, and the plastic liquid is injected into the mold through the injection hole. After the molding is cooled, the hydraulic cylinder 5 drives the upper mold 6 to move upward and open to obtain a molded product.

[0023] Reference Figure 1 、 Figure 2 and Figure 3The upper surface side of the base 1 is fixedly connected to a support 7, the side of the support 7 is fixedly connected to a motor 8, the driving end of the motor 8 is fixedly connected to a threaded rod 9, the movable sleeve of the threaded rod 9 is connected to a slide 10, the upper surface of the base 1 is rotatably connected to a gear 11, the upper surface edge of the gear 11 is fixedly connected to a shift block 12, the outer surface of the shift block 12 is provided with a hollow plate 13, the top middle part of the hollow plate 13 is hinged with an inclined rod 14, the end of the inclined rod 14 away from the hollow plate 13 is hinged with a connecting rod 15, the top of the connecting rod 15 is fixedly connected to a top piece 16, the top piece 16 is inserted into the bottom end of the lower mold 2, and the top of the top piece 16 extends into the bottom of the injection groove of the lower mold 2, the gears 11 are distributed along the linear matrix of the threaded rod 9, and the number of gears 11 is the same as that of the lower mold 2. The injection molding grooves of the lower mold 2 have the same number of partitioned intervals. The side of the slide 10 is fixedly connected with a rack 17. The motor 8 drives the threaded rod 9 to rotate and drives the slide 10 to move. During the movement of the slide 10, the rack 17 will be driven to engage with the gear 11, and then the gear 11 will be driven to rotate. The shift block 12 rotates with the gear 11 and pushes the hollow plate 13 to move. During the movement of the hollow plate 13, the connecting rod 15 will be pushed upward through the inclined rod 14, and then the ejector 16 will be pushed to eject the product from the lower mold 2. Moreover, since each injection molding groove corresponds to a ejector 16, all products can be automatically and continuously ejected as the slide 10 moves. The ejection action is fast and continuous, thereby achieving the purpose of improving production efficiency.

[0024] Reference Figure 1 、 Figure 3 and Figure 4 The top of the slide 10 is rotatably connected to a vertical rod 18, and a gear 2 19 is fixedly connected to the lower part of the outer surface of the vertical rod 18. The side of the support 7 is fixedly connected to a rack 20. The top of the vertical rod 18 is fixedly connected to an eccentric wheel 21. The outer surface of the pillar 3 is fixedly connected to a beam 22. A push rod 23 is inserted through the surface of the beam 22. The end of the push rod 23 is fixedly connected to a semicircular block 24. The outer surface of the push rod 23 is sleeved with a spring 25. The spring 25 starts the reset effect. In the process of the movement of the slide 10, the gear 2 19 will be Rack 20 is engaged, and then gear 2 19 will drive the vertical rod 18 to rotate. When the vertical rod 18 rotates, it will drive the eccentric wheel 21 to rotate and abut against the semicircular block 24. As the eccentric wheel 21 rotates, it will gradually squeeze the semicircular block 24 to push the push rod 23. The push rod 23 slides along the cross beam 22 and pushes the ejected product to the outside of the lower mold 2. The product will fall onto the conveying device and be conveyed to the next step, achieving the purpose of automatically pushing the product. The pushing and ejecting processes are carried out continuously, further improving the production efficiency of the product.

[0025] The specific working principle of the present invention is as follows: when the device is in use, the hydraulic cylinder 5 drives the upper mold 6 to move down and merge with the lower mold 2, and the plastic liquid is injected into the mold through the injection hole. After the molding is cooled, the hydraulic cylinder 5 drives the upper mold 6 to move up and open to obtain a molded product. Since the specific structure and working principle of the injection molding device and the injection mold are the existing technology well known to the staff in this field, they will not be elaborated on here. After the mold is opened, the motor 8 is started, and the motor 8 drives the threaded rod 9 to rotate and drive the slide 10 to move. During the movement of the slide 10, the rack 17 is driven to engage with the gear 11, and then the gear 11 is driven to rotate. The shift block 12 rotates with the gear 11 and pushes the hollow plate 13 to move. During the movement of the hollow plate 13, the connecting rod 15 is pushed upward by the inclined rod 14, and then the ejector 16 is pushed to eject the product from the lower mold 2. Since each injection groove corresponds to a ejector 16, all products can be automatically and continuously ejected as the slide 10 moves. The ejection action is fast and continuous, thereby achieving the purpose of improving production efficiency.

[0026] During the movement of the slide 10, gear 2 19 will mesh with rack 20, and then gear 2 19 will drive the vertical rod 18 to rotate. While the vertical rod 18 rotates, it will drive the eccentric wheel 21 to rotate and abut against the semicircular block 24. As the eccentric wheel 21 rotates, it will gradually squeeze the semicircular block 24 to push the push rod 23. The push rod 23 slides along the cross beam 22 and pushes the ejected product to the outside of the lower mold 2. The product will fall on the conveying device and be conveyed to the next step, achieving the purpose of automatically pushing the product. The pushing and ejecting processes are carried out continuously, further improving the production efficiency of the product. After the eccentric wheel 21 moves away from the semicircular block 24, the spring 25 rebounds and pushes the push rod 23 away from the lower mold 2.

[0027] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A precision injection mold capable of continuous ejection and demoulding, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to the lower mold (2), the edge of the base (1) is fixedly connected to the pillar (3), the top of the pillar (3) is fixedly connected to the top plate (4), the side of the upper surface of the base (1) is fixedly connected to the support (7), the side of the support (7) is fixedly connected to the motor (8), the driving end of the motor (8) is fixedly connected to the threaded rod (9), the movable sleeve of the threaded rod (9) is connected to the slide (10), and the base (1) is fixedly connected to the upper surface of the base (1). The upper surface is rotatably connected to a gear 1 (11), the upper surface edge of the gear 1 (11) is fixedly connected to a shift block (12), the outer surface of the shift block (12) is provided with a hollow plate (13), the top middle part of the hollow plate (13) is hinged to an inclined rod (14), the end of the inclined rod (14) away from the hollow plate (13) is hinged to a connecting rod (15), the top of the connecting rod (15) is fixedly connected to a top piece (16), and the top of the slide seat (10) is rotatably connected to a vertical rod (18).

2. A precision injection mold capable of continuous ejection and demoulding according to claim 1, characterized in that: The top piece (16) is inserted into the bottom end of the lower mold (2), and the top of the top piece (16) extends into the bottom of the injection groove of the lower mold (2).

3. A precision injection mold capable of continuous ejection and demoulding according to claim 1, characterized in that: The gears (11) are distributed along the linear matrix of the threaded rod (9), and the number of the gears (11) is the same as the number of the separation intervals of the injection molding groove of the lower mold (2). The side of the slide (10) is fixedly connected with a rack (17).

4. A precision injection mold capable of continuous ejection and demoulding according to claim 1, characterized in that: The lower portion of the outer surface of the vertical rod (18) is fixedly connected to a second gear (19), the side of the support (7) is fixedly connected to a second rack (20), and the top of the vertical rod (18) is fixedly connected to an eccentric wheel (21).

5. The precision injection mold capable of continuous ejection and demoulding according to claim 1, characterized in that: The outer surface of the pillar (3) is fixedly connected to a crossbeam (22), and a push rod (23) is inserted through the surface of the crossbeam (22).

6. The precision injection mold capable of continuous ejection and demoulding according to claim 5, characterized in that: The end of the push rod (23) is fixedly connected with a semicircular block (24), and the outer surface of the push rod (23) is sleeved with a spring (25).

7. The precision injection mold capable of continuous ejection and demoulding according to claim 1, characterized in that: A hydraulic cylinder (5) is provided on the upper surface of the top plate (4), and a driving end of the hydraulic cylinder (5) is fixedly connected to an upper mold (6).

Images