An integrated multi-mechanism injection mold

Abstract

The present invention relates to the technical field of injection molds, and more specifically, it relates to an integrated multi-mechanism injection mold, including a lower mold, the lower mold including a mold frame and a mold core, a top of the mold frame is provided with an embedding groove, the mold core is embedded in the embedding groove of the mold frame, and through holes are provided on the left and right sides of the mold frame, the through holes penetrate from the outer wall of the mold frame to the embedding groove, a pressure rod is slidably arranged in the through hole, a driving mechanism is arranged on the outer side of the mold frame, the driving mechanism connects the two pressure rods, and the driving mechanism controls the two pressure rods to approach the embedding groove or to move away from the embedding groove at the same time. The integrated multi-mechanism injection mold of the present invention can improve the efficiency of disassembly and assembly of the mold core.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to an integrated multi-mechanism injection mold. Background Art

[0002] Injection molding is a molding method that combines injection and molding. Injection molding requires an injection mold. The advantages of injection molding are fast production speed, high efficiency, and the ability to mold complex-shaped parts. It is suitable for molding and processing fields such as mass production and complex-shaped products.

[0003] Injection molds include integrated multi-mechanism injection molds, which are injection molds that can complete multiple different parts in one injection, also called multi-cavity molds. Their advantage is that they can greatly reduce production costs and improve production efficiency. During the use of integrated multi-mechanism injection molds, it may be necessary to replace the mold core in the mold according to different production requirements. At present, the disassembly and assembly efficiency of the mold core of integrated multi-mechanism injection molds still needs to be improved. Summary of the invention

[0004] In order to improve the efficiency of disassembly and assembly of a mold core of an integrated multi-mechanism injection mold, the present application provides an integrated multi-mechanism injection mold.

[0005] The present invention provides an integrated multi-mechanism injection mold adopts the following technical solution:

[0006] An integrated multi-mechanism injection mold comprises a lower mold, the lower mold comprises a mold frame and a mold core, the top of the mold frame is provided with an embedding groove, the mold core is embedded in the embedding groove of the mold frame, the left and right sides of the mold frame are provided with through holes, the through holes penetrate from the outer side wall of the mold frame to the embedding groove, a pressure rod is slidably arranged in the through hole, a driving mechanism is arranged on the outside of the mold frame, the driving mechanism connects the two pressure rods, and the driving mechanism controls the two pressure rods to approach the embedding groove or to move away from the embedding groove at the same time.

[0007] Preferably, the driving mechanism includes a mounting plate, a slide rail, a slider and a double-headed screw. Two mounting plates are provided. The two mounting plates are arranged on the front side of the mold frame at intervals on the left and right. The slide rail is connected between the two mounting plates. Two sliders are provided. The two sliders are slidably arranged on the slide rail. The double-headed screw is rotatably connected between the two mounting plates. The threads at both ends of the double-headed screw have opposite rotation directions. The two ends of the double-headed screw are respectively threadedly connected to the two sliders.

[0008] Preferably, installation grooves are provided at the left and right ends of the mold frame, the installation grooves are connected to the embedding grooves, a first gear with a driving force is rotatably arranged in the installation groove, a vertical first rack is provided on a side of the mold core facing the installation groove, and the first rack is meshed with the first gear; blocks are embedded on the front and rear sides of the mold core, and a spring is connected between the inner end of the block and the mold core.

[0009] Preferably, the mounting groove is communicated with the through hole, and a one-way driving assembly is connected between the pressure rod and the first gear, and the one-way driving assembly enables the pressure rod to drive the first gear to rotate only in the process of loosening the mold core.

[0010] Preferably, the one-way drive assembly includes a second gear, a third gear and a second rack, the second gear is rotatably arranged in the mounting groove, the second gear is meshed with the first gear, and the third gear is coaxially connected to the second gear; the second rack includes a bottom plate, a side plate, a toothed plate and a stop rod, the bottom plate is connected to the pressure rod, the side plate is provided with two pieces, the two side plates are arranged on the bottom plate at intervals, the toothed plates are provided with a plurality of, the plurality of toothed plates are rotatably arranged between the two side plates, a torsion spring is connected between the end of the toothed plate and the side plate, the torsion spring enables the toothed plate to automatically maintain an upright state, and the upper half of the plurality of toothed plates in the upright state are used to contact the lower end of the third gear during the movement, the stop rod is provided with a plurality of, the number of the stop rods is the same as the number of the toothed plates, the plurality of stop rods are arranged one by one on the outer sides of the plurality of toothed plates, and the height of the stop rod is within the height range of the lower half of the stop rod.

[0011] Preferably, the first gear is connected to a rotation damper.

[0012] Preferably, an insert block is provided at the inner end of the pressure rod, and a corresponding insert hole is provided on the side wall of the mold core. When the pressure rod presses the side wall of the mold core, the insert block is inserted into the insert hole.

[0013] Preferably, a cover plate is fixedly overlapped on the top of the mounting groove, the top surface of the cover plate is flush with the top surface of the mold frame, and an avoidance groove is opened at one end of the cover plate facing the mold core, and the avoidance groove is used to avoid the first rack on the side wall of the mold core.

[0014] Preferably, one end of the double-headed screw is connected to a screw block, and the screw block is provided with anti-slip patterns.

[0015] Preferably, the double-headed screw is connected to a motor.

[0016] The beneficial effects of the present invention are:

[0017] 1. The driving mechanism controls the two pressure rods to approach the embedding groove or to move away from the embedding groove at the same time. When the two pressure rods approach the embedding groove at the same time, the two pressure rods can press the mold core embedded in the embedding groove. When the two pressure rods move away from the embedding groove at the same time, the two pressure rods can loosen the mold core embedded in the embedding groove, thereby achieving the effect of quick disassembly and assembly, and improving the disassembly and assembly efficiency of the mold core of the integrated multi-mechanism injection mold;

[0018] 2. When the first gear and the rack lift the mold core, the clamping block can pop out to suspend the mold core above the embedding groove, making it easy to take the mold core out of the embedding groove;

[0019] 3. A one-way drive assembly is connected between the pressure rod and the first gear. The one-way drive assembly enables the pressure rod to drive the first gear to rotate only in the process of loosening the mold core. Ultimately, the one-way linkage between the pressure rod and the first gear improves the efficiency of disassembling the mold core without the need for step-by-step processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the lower mold in the embodiment of the present application;

[0021] Figure 2 This is an exploded view of the structure between the mold core and the pressure rod in the embodiment of the present application;

[0022] Figure 3 This is a schematic diagram of the structure of the lower mold after the cover plate is hidden in the embodiment of the present application;

[0023] Figure 4 It is a schematic diagram of the structure in the installation slot in the embodiment of the present application;

[0024] Figure 5 is a schematic diagram of the structure of the pressure rod and the second rack in the embodiment of the present application;

[0025] Figure 6 It is a schematic diagram of the structure of the second rack in the embodiment of the present application.

[0026] Explanation of the reference numerals in the accompanying drawings: 1. lower mold; 11. mold frame; 12. mold core; 121. clamping block; 21. screw block; 22. mounting plate; 23. slide rail; 24. slider; 25. double-headed screw; 26. connecting rod; 27. pressure rod; 31. plug block; 32. socket; 41. mounting groove; 42. cover plate; 51. first gear; 52. second gear; 53. third gear; 61. first rack; 62. second rack; 621. bottom plate; 622. side plate; 623. tooth plate; 624. stop rod. DETAILED DESCRIPTION

[0027] The following will be combined with the attached Figure 1 -Attached Figure 6 The present invention is further illustrated by the following embodiments.

[0028] This embodiment discloses an integrated multi-mechanism injection mold.

[0029] Reference Figure 1 The integrated multi-mechanism injection mold includes an upper mold and a lower mold 1, wherein the upper mold is a movable mold and the lower mold 1 is a fixed mold. The upper mold can be molded together with the lower mold 1 by moving downward. The lower mold 1 includes a mold frame 11 and a mold core 12. A groove is provided at the top center of the mold frame 11, and the mold core 12 is embedded in the groove of the mold frame 11. A plurality of cavities are provided in the mold core 12, and the plurality of cavities have different shapes, which are used to complete a plurality of different injection molded parts in one injection molding process. When the cavity needs to be changed to produce injection molded parts of different shapes, or when the mold core 12 needs to be maintained, the mold core 12 needs to be removed. At present, the disassembly and assembly efficiency of the mold core 12 of the integrated multi-mechanism injection mold still needs to be improved.

[0030] Reference Figure 1 The mold frame 11 is provided with through holes on both sides, and the through holes extend from the outer wall of the mold frame 11 to the embedded groove. A pressure rod 27 is slidably arranged in the through hole, and the pressure rod 27 approaches or moves away from the embedded groove by sliding. Furthermore, a driving mechanism is arranged on the outer side of the mold frame 11, and the driving mechanism connects the two pressure rods 27. The driving mechanism controls the two pressure rods 27 to approach the embedded groove or move away from the embedded groove at the same time. When the two pressure rods 27 approach the embedded groove at the same time, the two pressure rods 27 can press the mold core 12 embedded in the embedded groove. When the two pressure rods 27 move away from the embedded groove at the same time, the two pressure rods 27 can loosen the mold core 12 embedded in the embedded groove, so as to achieve the effect of quick disassembly and assembly, and improve the disassembly and assembly efficiency of the mold core 12 of the integrated multi-mechanism injection mold.

[0031] Reference Figure 1 The driving mechanism includes a mounting plate 22, a slide rail 23, a slider 24 and a double-headed screw 25, wherein two mounting plates 22 are provided, and the two mounting plates 22 are arranged at intervals on the front of the mold frame 11, the slide rail 23 is connected between the two mounting plates 22, and two sliders 24 are provided, and the two sliders 24 are slidably arranged on the slide rail 23, and the double-headed screw 25 is rotatably connected between the two mounting plates 22, and the threads of the two ends of the double-headed screw 25 are opposite in rotation direction, and the two ends of the double-headed screw 25 are respectively threadedly connected with the two sliders 24, so that when the double-headed screw 25 rotates, the two sliders 24 can be driven to approach or move away from each other. Further, the two sliders 24 are respectively connected to the two pressure rods 27 by connecting rods 26, so that the driving mechanism can finally drive the two pressure rods 27 to approach the embedded groove or move away from the embedded groove at the same time, so as to press the mold core 12 or loosen the mold core 12, and achieve the effect of quick disassembly and quick assembly. In addition, one end of the double-headed screw 25 is connected to a screw block 21, and the screw block 21 is provided with anti-slip grooves. The setting of the screw block 21 is used to facilitate manual control of the rotation of the double-headed screw 25. In other embodiments, the double-headed screw 25 can also be controlled by a motor drive to achieve the effect of saving manpower.

[0032] Reference Figure 2 In order to improve the installation stability of the mold core 12 in the embedded groove, an insert block 31 is provided at the inner end of the pressure rod 27, and a corresponding insertion hole 32 is provided on the side wall of the mold core 12. When the pressure rod 27 presses the side wall of the mold core 12, the insert block 31 is inserted into the insertion hole 32 to improve the limiting effect of the mold core 12, thereby improving the installation stability of the mold core 12 in the embedded groove.

[0033] Reference Figure 1 and Figure 3 The left and right ends of the mold frame 11 are also provided with mounting grooves 41, which are connected to the embedded grooves. A first gear 51 is rotatably arranged in the mounting grooves 41, and the first gear 51 is driven. A vertical first rack 61 is arranged on the side of the mold core 12 facing the mounting groove 41, and the first rack 61 is meshed with the first gear 51. When the two pressure rods 27 release the mold core 12, the mold core 12 can be easily lifted from the embedded groove by utilizing the rotation of the first gear 51 and the meshing transmission between the first gear 51 and the first rack 61. In addition, a clamping block 121 is embedded on the front and rear sides of the mold core 12, and a spring is connected between the inner end of the clamping block 121 and the mold core 12. When the first gear 51 and the rack lift the mold core 12, the clamping block 121 can pop out to suspend the mold core 12 above the embedded groove, so that the mold core 12 can be easily removed from the embedded groove.

[0034] Reference Figures 4 to 6In order to further improve the disassembly efficiency of the mold core 12, the installation groove 41 is connected to the through hole, and a one-way drive assembly is connected between the pressure rod 27 and the first gear 51. The one-way drive assembly enables the pressure rod 27 to drive the first gear 51 to rotate only in the process of loosening the mold core 12, and finally improves the disassembly efficiency of the mold core 12 through the one-way linkage between the pressure rod 27 and the first gear 51, without the need for step-by-step operation. Specifically, the one-way drive assembly includes a second gear 52, a third gear 53 and a second rack 62, wherein the second gear 52 is rotatably arranged in the installation groove 41, the second gear 52 is meshed with the first gear 51, and the third gear 53 is coaxially connected with the second gear 52, so that the first gear 51, the second gear 52 and the third gear 53 can rotate synchronously, and the first gear 51 and the second gear 52 rotate in opposite directions, and the second gear 52 and the third gear 53 rotate in the same direction. The second rack 62 is connected to the pressure rod 27. In particular, the second rack 62 includes a bottom plate 621, a side plate 622, a tooth plate 623 and a stopper 624. The bottom plate 621 is connected to the pressure rod 27. Two side plates 622 are provided. The two side plates 622 are spaced apart on the bottom plate 621. A plurality of tooth plates 623 are provided. The plurality of tooth plates 623 are rotatably provided between the two side plates 622. A torsion spring is connected between the end of the tooth plate 623 and the side plate 622. The torsion spring automatically keeps the tooth plate 623 in an upright state. The upper half of the plurality of tooth plates 623 in an upright state is used to contact the lower end of the third gear 53 during the movement. A plurality of stopper bars 624 are provided. The number of the stopper bars 624 is the same as the number of the tooth plates 623. The plurality of stopper bars 624 are provided one by one on the outer sides of the plurality of tooth plates 623. The height of the stopper bars 624 is located in the height range of the lower half of the stopper bars 624. Based on the above arrangement, the principle of the one-way linkage between the pressure rod 27 and the first gear 51 is as follows: when the pressure rod 27 moves inward and drives the second rack 62 to move inward, the upper half of the tooth plate 623 of the second rack 62 rotates to avoid after contacting the lower end of the third gear 53; when the pressure rod 27 moves outward and drives the second rack 62 to move outward, the upper half of the tooth plate 623 of the second rack 62 engages with the third gear 53 after contacting the lower end of the third gear 53, thereby driving the third gear 53 to rotate, causing the third gear 53, the second gear 52 and the first gear 51 to rotate in turn, and finally utilizing the meshing transmission of the first gear 51 and the first rack 61 to lift the mold core 12, thereby achieving the simultaneous release of the mold core 12 by the pressure rod 27 and the lifting of the mold core 12, thereby improving the disassembly efficiency of the mold core 12.

[0035] Reference Figures 4 to 6It should be noted that after the pressure rod 27 has completed the loosening action, the second rack 62 has moved outwardly away from the third gear 53. The purpose is that when the mold core 12 is put back into the embedded groove, the first rack 61 will drive the first gear 51 to rotate, and finally drive the third gear 53 to rotate. Since the third gear 53 has been separated from the second gear 52, it is possible to avoid the tooth plate 623 of the second gear 52 affecting the rotation of the third gear 53, thereby avoiding affecting the process of putting the mold core 12 back into the embedded groove. Furthermore, the first gear 51 is connected to a rotation damper, which can provide rotation damping for the rotation of the first gear 51, slowing down the descending speed of the mold core 12 into the embedded groove, thereby protecting the mold core 12 during the installation process.

[0036] Reference Figure 1 and Figure 3 A cover plate 42 is fixedly overlapped on the top of the mounting groove 41, and the top surface of the cover plate 42 is flush with the top surface of the mold frame 11, which is used to maintain the flatness of the top surface of the mold frame 11, and an avoidance groove is opened at one end of the cover plate 42 facing the mold core 12, which is used to avoid the first rack 61 on the side wall of the mold core 12.

[0037] The above are all preferred embodiments of the present invention, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An integrated multi-mechanism injection mold, characterized in that: The lower mold (1) comprises a mold frame (11) and a mold core (12), the top of the mold frame (11) is provided with an embedding groove, the mold core (12) is embedded in the embedding groove of the mold frame (11), the left and right sides of the mold frame (11) are provided with through holes, the through holes penetrate from the outer side wall of the mold frame (11) to the embedding groove, a pressure rod (27) is slidably arranged in the through hole, and a driving mechanism is arranged on the outer side of the mold frame (11), the driving mechanism connects the two pressure rods (27), and the driving mechanism controls the two pressure rods (27) to approach the embedding groove at the same time or to move away from the embedding groove at the same time; The driving mechanism comprises a mounting plate (22), a slide rail (23), a slider (24) and a double-headed screw (25); two mounting plates (22) are provided, and the two mounting plates (22) are arranged on the front side of the mold frame (11) at intervals from left to right; the slide rail (23) is connected between the two mounting plates (22); two sliders (24) are provided, and the two sliders (24) are slidably arranged on the slide rail (23); the double-headed screw (25) is rotatably connected between the two mounting plates (22); the threads at the two ends of the double-headed screw (25) are rotated in opposite directions, and the two ends of the double-headed screw (25) are respectively threadedly connected to the two sliders (24); The left and right ends of the mold frame (11) are provided with mounting grooves (41), the mounting grooves (41) are connected to the embedding grooves, a first gear (51) with a driving force is rotatably arranged in the mounting grooves (41), a vertical first rack (61) is arranged on a side of the mold core (12) facing the mounting grooves (41), and the first rack (61) is meshed with the first gear (51); the front and rear sides of the mold core (12) are both embedded with clamping blocks (121), and a spring is connected between the inner end of the clamping block (121) and the mold core (12); The mounting groove (41) is communicated with the through hole, and a one-way driving assembly is connected between the pressure rod (27) and the first gear (51), and the one-way driving assembly enables the pressure rod (27) to drive the first gear (51) to rotate only in the process of loosening the mold core (12).

2. The integrated multi-mechanism injection mold according to claim 1, characterized in that: The one-way drive assembly comprises a second gear (52), a third gear (53) and a second rack (62); the second gear (52) is rotatably arranged in the mounting groove (41); the second gear (52) is meshed with the first gear (51); the third gear (53) is coaxially connected with the second gear (52); the second rack (62) comprises a bottom plate (621), a side plate (622), a tooth plate (623) and a blocking rod (624); the bottom plate (621) is connected to the pressure rod (27); the side plate (622) is provided with two pieces, and the two side plates (622) are arranged on the bottom plate (621) at an interval; the tooth plate (623) is provided with a plurality of pieces, and the plurality of pieces The tooth plate (623) is rotatably arranged between the two side plates (622), and a torsion spring is connected between the end of the tooth plate (623) and the side plate (622), and the torsion spring enables the tooth plate (623) to automatically maintain an upright state. During the movement, the upper half of the multiple tooth plates (623) in the upright state is used to contact the lower end of the third gear (53). A plurality of baffle rods (624) are arranged, and the number of the baffle rods (624) is the same as the number of the tooth plates (623). The multiple baffle rods (624) are arranged one by one on the outer sides of the multiple tooth plates (623), and the height of the baffle rod (624) is located in the height range of the lower half of the baffle rod (624).

3. The integrated multi-mechanism injection mold according to claim 2, characterized in that: The first gear (51) is connected to a rotation damper.

4. The integrated multi-mechanism injection mold according to claim 1, characterized in that: An insert block (31) is provided at the inner end of the pressure rod (27), and a corresponding insert hole (32) is provided on the side wall of the mold core (12). When the pressure rod (27) presses the side wall of the mold core (12), the insert block (31) is inserted into the insert hole (32).

5. The integrated multi-mechanism injection mold according to claim 2, characterized in that: A cover plate (42) is fixedly overlapped on the top of the installation groove (41), the top surface of the cover plate (42) is flush with the top surface of the mold frame (11), and an avoidance groove is formed at one end of the cover plate (42) facing the mold core (12), and the avoidance groove is used to avoid the first rack (61) on the side wall of the mold core (12).

6. The integrated multi-mechanism injection mold according to claim 1, characterized in that: One end of the double-headed screw (25) is connected to a screw block (21), and the screw block (21) is provided with anti-slip patterns.

7. The integrated multi-mechanism injection mold according to claim 1, characterized in that: The double-headed screw (25) is connected to a motor.

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