Injection mold with automatic material cleaning

Abstract

The utility model belongs to the field of mould design, specifically speaking is a kind of automatic injection mould of clearing material, including side mould, the bottom welding shell of side mould, the inside installation of shell has motor, the output end connection drive pivot of motor, drive pivot engages transmission gear, the top end of transmission gear penetrates no.2 fixed pin and half saw tooth gear welding;The bottom of no.2 fixed pin is welded with shell;The side engagement connection of half saw tooth gear pushes material gear, the top end welding of pushing material gear no.3 bearing, the outside of no.3 bearing is equipped with no.1 fixed pin;Through the design of motor driving half saw tooth gear rotation and repeatedly push and pull push and pull rod, to drive the up-and-down movement of slide column in diamond slider, to realize the operation of ejecting bottom film simultaneously driving intermittent rotation of poking rod, can be carried out simultaneously after making and discharging and cleaning the residue in mould operation, thus the design avoids the incoherence of original mould in discharging.

Description

Technical Field

[0001] This utility model belongs to the field of mold design, specifically an automatic material clearing injection mold. Background Technology

[0002] Injection molds are one of the most important tools in plastic molding and processing. Their core purpose is to inject molten plastic raw materials into the mold cavity under high pressure through an injection molding machine. After the plastic cools and solidifies, a plastic product with a shape that is completely consistent with the cavity is obtained. The injection mold forms a cavity by closing the fixed mold and the moving mold. Molten plastic is injected into the cavity to cool and solidify. Then, the moving mold and the fixed mold are separated to remove the plastic part. Its core is to use the shape of the mold cavity and the opening and closing action to realize the molding and demolding of plastic.

[0003] Currently, existing injection molds, such as the YM-300-3000-18 model, require manual material removal during use. This results in a certain amount of time being spent manually removing the material after each demolding. In addition, existing injection molds suffer from difficulties in demolding and inconsistent material ejection and loading, which can lead to production delays and affect the service life of the mold.

[0004] Therefore, this utility model provides an injection mold with automatic material clearing. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: An automatic material-cleaning injection mold of this utility model includes a side mold. A shell is welded to the bottom of the side mold. A motor is installed inside the shell. The output end of the motor is connected to a drive shaft. The drive shaft meshes with a transmission gear. The top of the transmission gear passes through a second fixing pin and is welded to a half-saw gear. The bottom of the second fixing pin is welded to the shell. One side of the half-saw gear meshes with a material-feeding gear. A third bearing is welded to the top of the material-feeding gear. A first fixing pin is provided outside the third bearing. The bottom of the first fixing pin is welded to the shell. A material-feeding rod is welded to the top of the third bearing. A scraper is welded to the bottom of the other end of the material-feeding rod. By driving the half-saw gear to rotate and repeatedly pushing and pulling the push-pull rod, the sliding column moves up and down inside the diamond-shaped slider, thereby achieving the operation of ejecting the bottom film while simultaneously driving the material-feeding rod to rotate intermittently. This allows for simultaneous ejection, unloading, and cleaning of residue inside the mold after production. This design avoids the discontinuity in material unloading of the original mold.

[0007] Preferably, a connecting post is welded to the top side of the half-saw gear, and a push-pull rod is connected to the outside of the connecting post. The other end of the push-pull rod is provided with a connecting lug, and a diamond-shaped slider is welded to the other end of the connecting lug. A sliding groove is provided inside the diamond-shaped slider, and a limiting block is welded inside the sliding groove. A sliding column is slidably connected between the limiting block and the diamond-shaped slider. The other end of the sliding column is connected to a bearing No. 1, and a connecting rod is welded to the top of the bearing No. 1. A sliding rail is slidably connected to the bottom of the diamond-shaped slider. The sliding rail is welded to a guide plate, and the guide plate is welded to the outer shell. With this structural design, the connecting rod reciprocates up and down.

[0008] Preferably, a fixed rod is slidably connected to the top of the connecting rod, and the fixed rod is welded to the guide plate; a connecting plate is welded to the top of the connecting rod, and six sets of No. 2 bearings are welded to the top of the connecting plate; a rocker plate is provided inside the No. 2 bearing, and the rocker plate is fixed inside the No. 2 bearing by a No. 2 rotating shaft; by setting a push rod at the top of the top plate, after the bottom mold is ejected by the ejection device, it can be ejected again by the rocker plate contacting the side mold and then tilting one end up; and the push rod separates the bottom mold, the finished product, and the residue, thereby solving the problem that after the finished product is completed, the finished product and the bottom mold stick together, which makes it impossible to demold smoothly and the mold carries residue inside.

[0009] Preferably, the other end of the rocker is provided with a push rod, which is connected to one side of the rocker by a first rotating shaft; a spring is welded to the center of the connecting plate, and a bottom mold is welded to the other end of the spring; the bottom mold has six sets of circular through holes inside, and the push rod is slidably connected inside the circular through holes; the bottom mold is placed at the bottom of the side mold; one end of the rocker is placed on the bottom outside of the bottom mold; this structural design increases the stability of the device operation.

[0010] The beneficial effects of this utility model are as follows: 1. The automatic material clearing injection mold of this utility model uses a motor to drive a half-saw gear to rotate and repeatedly push and pull the push-pull rod to drive the slide column to move up and down inside the diamond-shaped slider. This achieves the operation of ejecting the bottom film while driving the material feeding rod to rotate intermittently. After the production is completed, the ejection, unloading and cleaning of the residue inside the mold can be performed at the same time. This design avoids the discontinuity of the original mold in terms of material unloading.

[0011] 2. The automatic material clearing injection mold of this utility model, by setting a push rod at the top of the top plate, can achieve secondary ejection after the bottom mold is ejected by the ejection device, by using a rocker plate to contact the side mold and then tilting one end up. The push rod separates the bottom mold, the finished product and the residue, thereby solving the problems of the finished product and the bottom mold sticking together after the finished product is completed, which makes it impossible to demold smoothly and the residue carried inside the mold. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 This is a perspective view of the present invention; Figure 2 This is a sectional view of the present invention; Figure 3 yes Figure 2 Schematic diagram of the structure at point A; Figure 4 yes Figure 2 Schematic diagram of the structure at point B; Figure 5 yes Figure 2 Schematic diagram of the structure at point C; In the diagram: 1. Side mold; 2. Outer shell; 3. Scraper; 4. Feeding rod; 5. Bearing No. 3; 6. Motor; 7. Feeding gear; 8. Fixing pin No. 1; 9. Half sawing gear; 10. Transmission gear; 11. Push-pull rod; 12. Drive shaft; 13. Fixing pin No. 2; 14. Diamond-shaped slider; 15. Limiting block; 16. Slide rail; 17. Guide plate; 18. Bottom mold; 19. Spring; 20. Circular through hole; 21. Fixing rod; 22. Rocker; 23. Bearing No. 2; 24. Shaft No. 2; 25. Push rod; 26. Shaft No. 1; 27. Connecting ear; 28. Bearing No. 1; 29. ​​Slide groove; 30. Slide column; 31. Connecting rod. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0015] Specific implementation examples are given below.

[0016] like Figures 1 to 5As shown, an automatic material clearing injection mold according to an embodiment of this utility model includes a side mold 1, a shell 2 welded to the bottom of the side mold 1, a motor 6 installed inside the shell 2, the output end of the motor 6 connected to a drive shaft 12, the drive shaft 12 meshing with a transmission gear 10, the top end of the transmission gear 10 passing through a second fixing pin 13 and welded to a half-saw gear 9; the bottom of the second fixing pin 13 is welded to the shell 2; one side of the half-saw gear 9 meshes with a material-feeding gear 7, the top end of the material-feeding gear 7 is welded to a third bearing 5, and a first fixing pin 8 is provided outside the third bearing 5. The bottom of bearing 8 is welded to the outer shell 2; the top of bearing 5 is welded to a feeding rod 4, and the bottom of the other end of the feeding rod 4 is welded to a scraper 3; a connecting post is welded to the top side of the half-saw gear 9, and a push-pull rod 11 is connected to the outside of the connecting post. The other end of the push-pull rod 11 is provided with a connecting ear 27, and the other end of the connecting ear 27 is welded to a diamond-shaped slider 14. The inside of the diamond-shaped slider 14 is provided with a sliding groove 29, and a limiting block 15 is welded inside the sliding groove 29. A sliding column 30 is slidably connected between the limiting block 15 and the diamond-shaped slider 14. The other end of the sliding column 30 is connected to bearing 28. The top is welded to a connecting rod 31; the bottom of the rhomboid slider 14 is slidably connected to a slide rail 16, which is welded to a guide plate 17, and the guide plate 17 is welded to the outer shell 2; when the device is running, the motor 6 starts, and its output end drives the drive shaft 12 to rotate, which meshes with the transmission gear 10, causing the half-saw gear 9, which is connected by the second fixing pin 13 at the top of the transmission gear 10, to rotate accordingly; during the rotation of the half-saw gear 9, on the one hand, its top connecting column drives the push-pull rod 11 to move, and the push-pull rod 11 drives the rhomboid slider 14 to slide along the slide rail 16 through the connecting ear 27. The inner limit block 15 of the slider 14 slides in conjunction with the sliding column 30. The sliding column 30 drives the connecting rod 31 to move via the first bearing 28, realizing the ejection of the bottom mold 18. On the other hand, the half saw gear 9 meshes with the material feeding gear 7. The top of the material feeding gear 7 drives the material feeding rod 4 to rotate intermittently via the third bearing 5. The scraper 3 at the end of the material feeding rod 4 moves synchronously. The motor 6 drives the half saw gear 9 to rotate, simultaneously completing the ejection of the bottom mold 18 and driving the material feeding rod 4 to rotate intermittently to clean the material. This avoids the problem of discontinuous material feeding in the original mold and realizes that ejection, material feeding, and cleaning of mold residue are carried out simultaneously after the production is completed.

[0017] A fixed rod 21 is slidably connected to the top of the connecting rod 31, and the fixed rod 21 is welded to the guide plate 17. A connecting plate is welded to the top of the connecting rod 31, and six sets of No. 2 bearings 23 are welded to the top of the connecting plate. A rocker plate 22 is provided inside the No. 2 bearing 23, and the rocker plate 22 is fixed inside the No. 2 bearing 23 by a No. 2 rotating shaft 24. A push rod 25 is provided at the other end of the rocker plate 22, and the push rod 25 is connected to one side of the rocker plate 22 by a No. 1 rotating shaft 26. A spring 19 is welded to the center of the connecting plate, and a bottom mold 18 is welded to the other end of the spring 19. Six sets of circular through holes 20 are opened inside the bottom mold 18, and the push rod 25 is slidably connected inside the circular through holes 20. The bottom mold 18 is placed at the bottom of the side mold 1. One end of the rocker plate 22 is placed on the outer side of the bottom of the bottom mold 18. During the ejection operation, the top of the connecting rod 31 The connecting plate moves with the connecting rod 31. The rocker plate 22 inside the second bearing 23 on the connecting plate, because one end of the rocker plate 22 is placed on the outside of the bottom of the bottom mold 18, when the bottom mold 18 is ejected, the rocker plate 22 contacts the side mold 1. Under the action of the second rotating shaft 24, one end of the rocker plate 22 is lifted up, and the other end of the rocker plate 22 moves along with the push rod 25 connected to the first rotating shaft 26. The push rod 25 slides in the circular through hole 20 of the bottom mold 18. At the same time, the central spring 19 of the connecting plate is connected to the bottom mold 18. With the action of the push rod 25, after the bottom mold 18 is ejected by the ejection device, the rocker plate 22 is lifted up by contact with the side mold 1 to achieve a second ejection. The push rod 25 is used to separate the bottom mold 18 from the finished product and residue, which solves the problem of difficult demolding caused by the adhesion between the finished product and the bottom mold 18 and the problem of residue residue inside the mold, and improves the demolding effect and mold cleanliness.

[0018] During operation, when the device is running, the motor 6 starts, and its output drives the drive shaft 12 to rotate. The drive shaft 12 meshes with the transmission gear 10, causing the half-saw gear 9, which is connected by the second fixing pin 13 at the top of the transmission gear 10, to rotate. During the rotation of the half-saw gear 9, on the one hand, its top connecting column drives the push-pull rod 11 to move. The push-pull rod 11 drives the diamond-shaped slider 14 to slide along the slide rail 16 through the connecting ear 27. The limit block 15 inside the diamond-shaped slider 14 slides with the sliding column 30. The sliding column 30 drives the connecting rod 31 to move through the first bearing 28, realizing the ejection of the bottom mold 18. On the other hand, the half-saw gear 9 meshes with the material-pushing gear 7. The top of the material-pushing gear 7 drives the material-pushing rod 4 to rotate intermittently through the third bearing 5. The scraper 3 at the end of the material-pushing rod 4 moves synchronously. By driving the half-saw gear 9 to rotate through the motor 6, the ejection of the bottom mold 18 is completed at the same time, and the material-pushing rod 4 is driven to rotate intermittently to clear the material, avoiding the material discharge of the original mold. To address the issue of discontinuity, the ejection, unloading, and mold residue cleaning are performed simultaneously after the product is completed. During the ejection operation, the connecting plate at the top of the connecting rod 31 moves with the connecting rod 31. The rocker plate 22 inside the second bearing 23 on the connecting plate, with one end positioned on the outer side of the bottom mold 18, contacts the side mold 1 during the ejection of the bottom mold 18. Under the action of the second rotating shaft 24, one end of the rocker plate 22 tilts up, and the other end of the rocker plate 22 moves along with the push rod 25 connected to the first rotating shaft 26. The push rod 25 slides within the circular through hole 20 of the bottom mold 18. Simultaneously, the central spring 19 of the connecting plate connects to the bottom mold 18. In conjunction with the action of the push rod 25, after the ejection device ejects the bottom mold 18, the rocker plate 22 tilts up in contact with the side mold 1 to achieve a secondary ejection. The push rod 25 separates the bottom mold 18 from the finished product and residue, solving the problem of difficult demolding caused by the finished product sticking to the bottom mold 18 and the problem of residue remaining inside the mold, thus improving the demolding effect and mold cleanliness.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An injection mold with automatic material clearing, characterized in that: The device includes a side mold (1), a shell (2) welded to the bottom of the side mold (1), a motor (6) installed inside the shell (2), the output end of the motor (6) connected to a drive shaft (12), the drive shaft (12) meshing with a transmission gear (10), the top end of the transmission gear (10) passing through a second fixing pin (13) and welded to a half saw gear (9); the bottom of the second fixing pin (13) is welded to the shell (2); one side of the half saw gear (9) meshes with a material feeding gear (7), the top end of the material feeding gear (7) is welded to a third bearing (5), the outside of the third bearing (5) is provided with a first fixing pin (8), the bottom of the first fixing pin (8) is welded to the shell (2); the top end of the third bearing (5) is welded to a material feeding rod (4), and the bottom of the other end of the material feeding rod (4) is welded to a scraper (3).

2. The injection mold for automatic material clearing according to claim 1, characterized in that: A connecting post is welded to the top side of the half saw gear (9), and a push-pull rod (11) is connected to the outside of the connecting post. The other end of the push-pull rod (11) is provided with a connecting ear (27). A diamond-shaped slider (14) is welded to the other end of the connecting ear (27). A limiting block (15) is welded inside the diamond-shaped slider (14). A sliding groove (29) is provided between the limiting block (15) and the diamond-shaped slider (14). A sliding column (30) is slidably connected inside the sliding groove (29). The other end of the sliding column (30) is connected to a bearing (28). A connecting rod (31) is welded to the top of the bearing (28).

3. The injection mold for automatic material clearing according to claim 2, characterized in that: The bottom of the rhomboid slider (14) is slidably connected to the slide rail (16), the slide rail (16) is welded to the guide plate (17), and the guide plate (17) is welded to the outer shell (2).

4. The injection mold for automatic material clearing according to claim 2, characterized in that: A fixed rod (21) is slidably connected to the top of the connecting rod (31), and the fixed rod (21) is welded to the guide plate (17); a connecting plate is welded to the top of the connecting rod (31), and six sets of No. 2 bearings (23) are welded to the top of the connecting plate. The No. 2 bearings (23) are provided with rocker plates (22) inside, and the rocker plates (22) are fixed inside the No. 2 bearings (23) by No. 2 rotating shafts (24).

5. The injection mold for automatic material clearing according to claim 4, characterized in that: The other end of the rocker (22) is provided with a push rod (25), which is connected to one side of the rocker (22) by a first rotating shaft (26).

6. The injection mold for automatic material clearing according to claim 4, characterized in that: A spring (19) is welded to the center of the connecting plate, and a bottom mold (18) is welded to the other end of the spring (19). The bottom mold (18) has six sets of circular through holes (20) inside, and a push rod (25) is slidably connected inside the circular through holes (20). The bottom mold (18) is placed at the bottom of the side mold (1).

7. The injection mold for automatic material clearing according to claim 4, characterized in that: One end of the rocker (22) is placed on the outer side of the bottom of the bottom mold (18).

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