Demolding mechanism of injection mold

Abstract

The demolding mechanism comprises a working frame, an upper mold and a lower mold, the lower mold is placed at the bottom end of the inner wall of the working frame, and the upper mold is placed at the top end of the lower mold in an adhesion mode; a hydraulic cylinder is started to drive an outer plate to move downwards, the outer plate drives an inner plate to move downwards, so that two clamping plates are driven to be pushed downwards, then bottom plates of the clamping plates are located below the edge of an upper mold, at the moment, one side edge of the upper mold is moved and attached to the clamping plates connected with round pipes, and then an adjusting screw rod is rotated; the distance between the two clamping plates is adjusted to be the length of the upper mold, the two clamping plates can be attached to the edge of the upper mold, the effect that regular upper molds of different lengths can be fixed is achieved, the periphery of the lower mold is pressed and fixed through the limiting piece, then the outer plate is pulled upwards, and therefore the upper mold and the lower mold can be separated through the clamping plates, and the mold is convenient to use. And the demolding effect is further achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of a demoulding mechanism of an injection mold. Background Art

[0002] An injection mold is a tool for producing plastic products. It is also a tool that gives plastic products a complete structure and precise size. Specifically, it refers to the process of injecting heated and melted plastic into the mold cavity under high pressure by an injection molding machine, and then cooling and solidifying to obtain a molded product.

[0003] At present, after the injection mold is processed, the product needs to be manually removed from the mold, which makes the process of processing the product by the injection mold more complicated, which not only affects the convenience and efficiency of processing the product by the injection mold, but also increases the labor intensity of the staff; and the method of using a hydraulic cylinder to open the upper and lower molds can reduce the labor intensity of manual demolding, but the mold needs to be fixed, and different molds, especially molds with more regular shapes, such as rectangular molds, need to be fixed with different fixing devices when the molds have different lengths, resulting in the fixing device being unable to adapt to as many more regular molds of different lengths as possible. Utility Model Content

[0004] The utility model aims to provide a demoulding mechanism for an injection mold, so as to overcome the defect that the more regular injection molds with different lengths cannot be adapted.

[0005] The technical solution to achieve the above-mentioned purpose is: a demolding mechanism for an injection mold, comprising a working frame, an upper mold and a lower mold, the lower mold is placed at the bottom end of the inner wall of the working frame, the upper mold is adhesively placed on the top of the lower mold, the top of the working frame is connected to a hydraulic cylinder, the output end of the hydraulic cylinder is connected to an outer plate, one end of the outer plate is slidably connected to an inner plate, the outer wall of the outer plate and the outer wall of the inner plate are both connected to a clamping plate, the outer wall of one of the clamping plates is connected to a circular tube, the outer wall of the other clamping plate is rotatably connected to an adjusting screw, the outer wall of the adjusting screw is threadedly connected to the inner wall of the circular tube, the bottom end of the inner wall of the working frame is provided with four sliding grooves distributed in an array of circular axes, and the inner wall of the sliding groove is slidably connected to a limiting member.

[0006] Preferably, the shape of the card plate is L-shaped.

[0007] Preferably, the length of the outer plate is greater than the length of the inner plate.

[0008] Preferably, the limiting member includes a slider, a guide rod, a limiting screw, a pressure plate and an auxiliary member, the inner wall of the slide groove is slidably connected to the slider, the top of the slider is slidably connected to the guide rod, the top of the guide rod is connected to the pressure plate, the outer wall of the pressure plate is rotatably connected to the limiting screw, and the outer wall of the limiting screw is threadedly connected to the slider.

[0009] Preferably, the auxiliary parts include limit grooves, connecting rods, round rods, fixed rods, springs and plug plates, a plurality of limit grooves are opened at the bottom end of the slide groove, the outer wall of the slide block is connected to the fixed rod, the outer wall of the fixed rod is slidably connected to two symmetrically distributed round rods, the top ends of the two round rods are connected to connecting rods, the bottom ends of the round rods are connected to the plug plates, the top ends of the plug plates are connected to springs, and the top ends of the springs are connected to the fixed rods.

[0010] Preferably, the outer wall of the connecting rod is rotatably connected to a rotating rod, and a slot is formed at the upper end of the fixed rod, and the slot is located directly below the rotating rod.

[0011] Preferably, a placement groove is provided at one end of the bottom side wall of the slide groove.

[0012] Preferably, an outer wall on one side of the work frame is connected with an inclined plate.

[0013] The beneficial effects of the utility model are:

[0014] 1) Start the hydraulic cylinder to drive the outer plate to move downward, and the outer plate drives the inner plate to move downward, thereby driving the two pallets to push downward, and then make the bottom plate of the pallet located below the edge of the upper mold. At this time, move one side edge of the upper mold and make it close to the pallet connected to the round tube, and then turn the adjusting screw to adjust the spacing between the two pallets to the length of the upper mold, so that both pallets can be close to the edge of the upper mold, achieving the effect of fixing regular upper molds of different lengths, and using the limiter to press and fix the four sides of the lower mold, and then pull the outer plate upward, so that the pallet can separate the upper mold and the lower mold, thereby achieving the demoulding effect.

[0015] 2) Lift the slider out of the placement slot, and then make the slider stick to the lower mold. At this time, turn the limit screw to make the pressure plate squeeze the bottom edge of the lower mold to preliminarily fix the lower mold. Then, pull out the rotating rod originally inserted into the slot so that the rotating rod no longer supports the connecting rod, so that the spring can push the insert plate into the corresponding limit slot through elastic force, and then fix the slider, and finally completely fix the lower mold, so that more lower molds with different lengths and regular shapes can be fixed. Therefore, the types of mold fixing devices can be reduced, which facilitates the demolding of the injection mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 4 yes Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 5 yes Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0021] 1. Work stand; 2. Upper mold; 3. Lower mold; 4. Clamping plate; 5. Outer plate; 6. Inner plate; 7. Adjusting screw; 8. Round tube; 9. Hydraulic cylinder; 10. Slide; 11. Sliding block; 12. Guide rod; 13. Limiting screw; 14. Pressing plate; 15. Limiting groove; 16. Connecting rod; 17. Round rod; 18. Fixed rod; 19. Spring; 20. Insert plate; 21. Rotating rod; 22. Clamping groove; 23. Placement groove; 24. Inclined plate. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] The utility model will be further described below in conjunction with the accompanying drawings.

[0024] Reference Figure 1-5 , a demoulding mechanism for an injection mold, comprising a working frame 1, an upper mold 2 and a lower mold 3, the lower mold 3 is placed at the bottom end of the inner wall of the working frame 1, the upper mold 2 is bonded and placed at the top of the lower mold 3, the top of the working frame 1 is connected to a hydraulic cylinder 9, the output end of the hydraulic cylinder 9 is connected to an outer plate 5, one end of the outer plate 5 is slidably connected to an inner plate 6, the length of the outer plate 5 is greater than the length of the inner plate 6, the outer wall of the outer plate 5 and the outer wall of the inner plate 6 are both connected to a card plate 4, the shape of the card plate 4 is L-shaped, the outer wall of one card plate 4 is connected to a round tube 8, the outer wall of the other card plate 4 is rotatably connected to an adjusting screw 7, the outer wall of the adjusting screw 7 is threadedly connected to the inner wall of the round tube 8, the bottom end of the inner wall of the working frame 1 is provided with a slide groove 10 distributed in an array of four circular axes, the inner wall of the slide groove 10 is slidably connected to a limiting member, and the outer wall of one side of the working frame 1 is connected to an inclined plate 24.

[0025] By using the inclined plate 24, the upper mold 2 and the lower mold 3 can be easily pushed to the inner bottom end of the working frame 1, and the hydraulic cylinder 9 is started to drive the outer plate 5 to move downward, and the outer plate 5 drives the inner plate 6 to move downward, thereby driving the two clamping plates 4 to be pushed downward, and then, the bottom plate of the clamping plate 4 is located below the edge of the upper mold 2. At this time, one side edge of the upper mold 2 is moved and attached to the clamping plate 4 connected with the round tube 8, and then, the adjusting screw 7 is rotated to adjust the spacing between the two clamping plates 4 to the length of the upper mold 2, so that the two clamping plates 4 can be attached to the edge of the upper mold 2, so as to achieve the effect of fixing regular upper molds 2 of different lengths, and use the limiter to press and fix the four sides of the lower mold 3, and then pull the outer plate 5 upward, so that the clamping plate 4 can separate the upper mold 2 and the lower mold 3, thereby achieving the demoulding effect, and the upper mold 2 can be released by reverse operation.

[0026] Reference Figure 2-5 The limiting member includes a slider 11, a guide rod 12, a limiting screw 13, a pressure plate 14 and an auxiliary member. The inner wall of the slide 10 is slidably connected with the slider 11, the top of the slider 11 is slidably connected with the guide rod 12, the top of the guide rod 12 is connected with the pressure plate 14, the outer wall of the pressure plate 14 is rotatably connected with the limiting screw 13, the outer wall of the limiting screw 13 is threadedly connected with the slider 11, the auxiliary member includes a limiting groove 15, a connecting rod 16, a round rod 17, a fixed rod 18, a spring 19 and a plug plate 20, and a plurality of limiting grooves are opened at the bottom of the slide 10 15. The outer wall of the slider 11 is connected to a fixed rod 18, and the outer wall of the fixed rod 18 is slidably connected to two symmetrically distributed round rods 17, the top ends of the two round rods 17 are connected to a connecting rod 16, the bottom ends of the round rods 17 are connected to a plug plate 20, the top end of the plug plate 20 is connected to a spring 19, the top end of the spring 19 is connected to the fixed rod 18, the outer wall of the connecting rod 16 is rotatably connected to a rotating rod 21, the upper end of the fixed rod 18 is provided with a slot 22, and the slot 22 is located directly below the rotating rod 21, and one end of the bottom side wall of the slide 10 is provided with a placement groove 23.

[0027] Before pushing the upper mold 2 and the lower mold 3 to the inner bottom end of the working frame 1, slide the slider 11 into the placement groove 23 so that the slider 11 will not partially protrude out of the slide groove 10, avoiding obstruction to the pushing of the upper mold 2 and the lower mold 3 into the inner bottom end of the working frame 1. After the upper mold 2 and the lower mold 3 are pushed into the inner bottom end of the working frame 1, and one side edge of the upper mold 2 is attached to the card plate 4 connected with the round tube 8, at this time, lift the slider 11 out of the placement groove 23, and then attach the slider 11 to the lower mold 3. At this time, turn the limit screw 13 to make the pressure plate 14 squeeze the bottom edge of the lower mold 3 to preliminarily fix the lower mold 3, and then pull out the rotating rod 21 originally inserted into the card groove 22 so that the rotating rod 21 is no longer in the The connecting rod 16 is supported so that the spring 19 can push the insert plate 20 into the corresponding limit groove 15 through elastic force, thereby fixing the slider 11, and finally completely fixing the lower mold 3, so that more lower molds 3 with regular shapes of different lengths can be fixed. Therefore, the types of mold fixing devices can be reduced, and the demolding of the injection mold is convenient. When the lower mold 3 needs to be removed, it is only necessary to insert the rotating rod 21 into the card slot 22 to disengage the insert plate 20 from the limit groove 15, and turn the limit screw 13 upward, and the slider 11 slides into the placement groove 23, and then push the pressing plate 14 back to fit the top of the slider 11, so that there is no protruding object above the slide groove 10, and the lower mold 3 can be pulled out of the working frame 1.

[0028] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A demoulding mechanism for an injection mold, comprising a working frame (1), an upper mold (2) and a lower mold (3), wherein the lower mold (3) is placed at the bottom end of the inner wall of the working frame (1), and the upper mold (2) is placed on the top end of the lower mold (3) by adhesion, characterized in that: The top end of the working frame (1) is connected to a hydraulic cylinder (9), the output end of the hydraulic cylinder (9) is connected to an outer plate (5), one end of the outer plate (5) is slidably connected to an inner plate (6), the outer wall of the outer plate (5) and the outer wall of the inner plate (6) are both connected to a clamping plate (4), the outer wall of one clamping plate (4) is connected to a round tube (8), the outer wall of the other clamping plate (4) is rotatably connected to an adjusting screw (7), the outer wall of the adjusting screw (7) is threadedly connected to the inner wall of the round tube (8), and the bottom end of the inner wall of the working frame (1) is provided with four slide grooves (10) distributed in a circular axis array, and the inner wall of the slide groove (10) is slidably connected to a limiting member.

2. The demoulding mechanism of an injection mold according to claim 1, characterized in that: The shape of the clamping plate (4) is L-shaped.

3. The demoulding mechanism of an injection mold according to claim 1, characterized in that: The length of the outer plate (5) is greater than the length of the inner plate (6).

4. The demoulding mechanism of an injection mold according to claim 1, characterized in that: The limiting component comprises a slider (11), a guide rod (12), a limiting screw (13), a pressure plate (14) and an auxiliary component; the inner wall of the slide groove (10) is slidably connected to the slider (11); the top end of the slider (11) is slidably connected to the guide rod (12); the top end of the guide rod (12) is connected to the pressure plate (14); the outer wall of the pressure plate (14) is rotatably connected to the limiting screw (13); and the outer wall of the limiting screw (13) is threadedly connected to the slider (11).

5. The demoulding mechanism of an injection mold according to claim 4, characterized in that: The auxiliary component comprises a limit groove (15), a connecting rod (16), a round rod (17), a fixed rod (18), a spring (19) and an insert plate (20); a plurality of limit grooves (15) are provided at the bottom end of the slide groove (10); the outer wall of the slide block (11) is connected to a fixed rod (18); the outer wall of the fixed rod (18) is slidably connected to two symmetrically distributed round rods (17); the top ends of the two round rods (17) are connected to a connecting rod (16); the bottom ends of the round rods (17) are connected to an insert plate (20); the top ends of the insert plates (20) are connected to a spring (19); and the top ends of the springs (19) are connected to the fixed rods (18).

6. The demoulding mechanism of an injection mold according to claim 5, characterized in that: The outer wall of the connecting rod (16) is rotatably connected to a rotating rod (21), and a clamping groove (22) is formed at the upper end of the fixed rod (18), wherein the clamping groove (22) is located directly below the rotating rod (21).

7. The demoulding mechanism of an injection mold according to claim 1, characterized in that: A placement groove (23) is provided at one end of the bottom side wall of the slide groove (10).

8. The demoulding mechanism of an injection mold according to claim 1, characterized in that: An outer wall on one side of the working frame (1) is connected to an inclined plate (24).

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