Environment-friendly plastic forming mold

Abstract

The environment-friendly plastic forming mold comprises a base, a lower mold box is arranged in the base, a groove hole is formed in the middle of the bottom of the lower mold box, a driving box is arranged above the base, an upper mold box is installed in the middle of the bottom face of the driving box in a supporting mode, and an injection molding opening is formed in the middle of the upper portion of the upper mold box. Threaded columns are arranged on the left side and the right side of the bottom of the driving box, the driving box drives the upper mold box and the lower mold box to be connected into a whole, an ejector plate is arranged in a groove hole in the bottom of the lower mold box, a second slope block is fixedly installed in the middle of the bottom of the ejector plate, and moving blocks are arranged on the left side and the right side below the second slope block. The moving block is located in a sliding groove in the bottom of the base to form a left-right moving structure. According to the environment-friendly plastic forming mold, during demolding, only the rotating handle is rotated to drive the upper mold box to ascend, meanwhile, the ejector plate is automatically driven to eject out the mold core in the lower mold box, the demolding step is simple, and energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molding molds, in particular to an environmentally friendly plastic molding mold. Background Art

[0002] Plastic products are one of the commonly used items in people's lives. With the continuous improvement of people's living standards, the use of plastic products has also greatly increased. However, most of the current plastic products are produced by molds. The mold is a device used to process the shell of the product. In the production process of plastic products, most of them are formed by pouring plastic slurry into a plastic mold made of steel. Therefore, an environmentally friendly plastic molding mold has appeared on the market. However, there are still certain problems when using the existing environmentally friendly plastic molding molds:

[0003] For example, a mold for environmentally friendly plastic molding with announcement number CN218227442U has the following technical scheme: it includes a main body and a mold core, wherein a support plate for ejecting the mold core is arranged near the lower end of the main body; the push plate is ejected outward by an electric telescopic rod, which can drive the support rod to rotate so that the slider slides inside the slide seat and moves the support plate upward, and the mold core can be directly taken out for replacement. The operation is simple and mold cores of different shapes can be replaced conveniently, so as to avoid that the internal structure is fixed and only the same shape products can be produced to improve adaptability; after the convex ring is rotated and connected to the inside of the convex seat, the screw rod can be rotated to drive the connecting plate to move backward so that the convex shaft is separated from the inside of the mold core to release the limit, and the mold core can be lifted by the support rod to be taken out and replaced with the next mold core. The structure is simple and the mold core can be taken out for easy material feeding and use, while saving the time of waiting for cooling and improving work efficiency. However, the existing mold for environmentally friendly plastic molding needs to start the electric telescopic rod to eject the mold core when taking out the mold core, which requires one more operation process and wastes a certain amount of energy.

[0004] In view of this, we conducted in-depth research on the above issues, which led to the present case.

[0005] In view of the above problems, innovative designs are carried out based on the original environmentally friendly plastic molding molds. Utility Model Content

[0006] The utility model aims to provide an environmentally friendly plastic molding mold to solve the problems of complicated operation steps and energy waste in removing the mold core in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A mold for environmentally friendly plastic molding, including a base, a lower mold box is arranged inside the base, and a slot is opened in the middle of the bottom of the lower mold box, a drive box is arranged above the base, and an upper mold box is supported and installed in the middle of the bottom surface of the drive box, and an injection port is arranged in the middle of the upper part of the upper mold box, threaded columns are arranged on the left and right sides of the bottom of the drive box, and the drive box drives the upper mold box and the lower mold box to be connected into a whole, an ejector plate is arranged in the slot at the bottom of the lower mold box, and a second inclined block is fixedly installed in the middle of the bottom of the ejector plate, moving blocks are arranged on the left and right sides below the second inclined block, and the moving blocks are located in the slide groove at the bottom of the base to form a left-right moving structure.

[0009] Preferably, a rotating handle is installed in the middle of the top of the driving box, and a first bevel gear is installed at the bottom of the rotating handle via a rotating shaft, and second bevel gears are installed on both sides of the first bevel gear via tooth patterns to form a rotating structure.

[0010] By adopting the above technical solution, when the handle is manually rotated, the first bevel gear can be driven to rotate through the rotating shaft, and then the second bevel gear connected with the tooth pattern rotates synchronously, providing mechanical power for the lifting and lowering movement of the upper mold box.

[0011] Preferably, a worm is connected and installed on both sides of the second bevel gear, and the spiral patterns on the left and right sides of the worm are opposite. A worm wheel is connected and installed on the rear sides of the left and right sides of the worm, and the upper ends of the worm wheels are connected to the top surface inside the drive box through a rotating shaft to form a rotating structure.

[0012] With the above technical solution, when the second bevel gear rotates, the worm is driven to rotate at the same time. Since the left and right second bevel gears rotate in opposite directions, the worm spiral patterns are opposite, ensuring that the threaded column below rotates in the same direction.

[0013] Preferably, a threaded column is connected and installed below the worm gear, and the lower end of the threaded column is threadedly connected to the inside of the threaded sleeve, the outside of the threaded sleeve is fixedly installed on the left and right sides of the inner side of the base, and the first straight rack is rotatably installed on the bottom end of the threaded column, and the outer sides of the first straight rack are located on the left and right sides of the inner side of the base to form a lifting structure.

[0014] By adopting the above technical solution, when the worm wheel rotates, it also drives the threaded column to rotate, and then the threaded sleeve penetrating the threaded connection can drive the drive box to rise and fall, and at the same time drive the first spur rack at the bottom to rise and fall, so as to provide mechanical power for the rise of the ejector plate.

[0015] Preferably, the inner side surface of the first spur rack is toothedly connected to a transmission gear, and the transmission gear is connected to the front and rear surfaces inside the base through a rotating shaft, and the other side surface of the transmission gear is toothedly connected to a second spur rack, and a telescopic rod is installed above the second spur rack, and the telescopic rod is fixedly installed on the top surface inside the base.

[0016] By adopting the above technical solution, when the first spur rack is raised or lowered, the connected transmission gear can drive the second spur rack to move up or down in the opposite direction of the first spur rack. During demoulding, when the upper mold box moves upward, the second spur rack can be automatically driven to descend, providing mechanical power for the rise of the ejector plate.

[0017] Preferably, a first inclined plane block is fixedly mounted on the bottom of the second spur rack, and the first inclined plane block is tangent to the inclined plane outside the moving block, and the first inclined plane block contacts the moving block to drive the moving block to form a left-right moving structure.

[0018] By adopting the above technical solution, when the second spur rack descends, it drives the first inclined block to descend and contact the moving block, so that the left and right moving blocks can be squeezed inward to provide mechanical power for the rise of the ejection plate.

[0019] Preferably, the inner inclined surface of the moving block is tangent to the inclined surfaces on the left and right sides of the second inclined surface block, and the moving block contacts the second inclined surface block to drive the second inclined surface block to form a lifting structure.

[0020] By adopting the above technical solution, when the left and right moving blocks move toward each other, the second inclined block can be squeezed upward, thereby driving the ejection plate to be ejected, so as to facilitate the ejection of the mold core of the lower mold box and facilitate the replacement of mold cores of different shapes and demolding.

[0021] Compared with the prior art, the utility model has the following beneficial effects: the mold for molding environmentally friendly plastics,

[0022] 1. An upper mold box with adjustable lifting is provided. A threaded column is connected and installed below the worm gear, and the lower end of the threaded column is threadedly connected to the inside of the threaded sleeve. The outside of the threaded sleeve is fixedly installed on the left and right sides of the inner side of the base, and the first straight rack is fixedly installed on the bottom end of the threaded column. The outer sides of the first straight rack are located on the left and right sides of the inner side of the base to form a lifting structure. When the worm gear rotates, the threaded column is driven to rotate at the same time, and then the threaded sleeve penetrating the threaded connection can drive the driving box to lift and lower, which is convenient for the upper mold box to move up and down and for demoulding after molding;

[0023] 2. An ejector plate is provided which is automatically ejected during demoulding. The inner inclined surfaces of the moving block are tangent to the inclined surfaces on the left and right sides of the second inclined surface block, and the moving block contacts the second inclined surface block to drive the second inclined surface block to form a lifting structure. When the left and right moving blocks move toward each other, the second inclined surface block can be squeezed upward, thereby driving the ejector plate to be ejected, so as to facilitate the ejection of the mold core of the lower mold box, the replacement of mold cores of different shapes and demoulding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the front main structure of the utility model;

[0025] Figure 2This is a front sectional structural schematic diagram of the utility model;

[0026] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0027] Figure 4 For this utility model Figure 2 The enlarged structural diagram at B in the middle;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the bottom of the lower mold box of the utility model.

[0029] In the figure: 1. base; 2. lower mold box; 3. drive box; 4. handle; 5. first bevel gear; 6. second bevel gear; 7. worm; 8. worm wheel; 9. threaded column; 10. threaded sleeve; 11. first spur rack; 12. transmission gear; 13. second spur rack; 14. first inclined block; 15. telescopic rod; 16. moving block; 17. second inclined block; 18. ejector plate; 19. upper mold box; 20. injection port. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1-5 , the utility model provides a technical solution:

[0032] A mold for environmentally friendly plastic molding, including a base 1, a lower mold box 2 is arranged inside the base 1, and a slot is opened in the middle of the bottom of the lower mold box 2, a drive box 3 is arranged above the base 1, and an upper mold box 19 is supported and installed in the middle of the bottom surface of the drive box 3, and an injection port 20 is arranged in the middle of the upper mold box 19, threaded columns 9 are arranged on the left and right sides of the bottom of the drive box 3, and the drive box 3 drives the upper mold box 19 and the lower mold box 2 to be connected into a whole, an ejector plate 18 is arranged in the slot at the bottom of the lower mold box 2, and a second inclined block 17 is fixedly installed in the middle of the bottom of the ejector plate 18, and moving blocks 16 are arranged on the left and right sides below the second inclined block 17, and the moving block 16 is located in the bottom slide groove of the base 1 to form a left-right moving structure.

[0033] A handle 4 is installed in the middle of the top of the driving box 3, and a first bevel gear 5 is installed at the bottom of the handle 4 through a rotating shaft, and the first bevel gear 5 is connected and installed with a second bevel gear 6 on both sides of the first bevel gear 5 to form a rotating structure. A worm 7 is connected and installed on both sides of the second bevel gear 6, and the worm patterns on the left and right sides of the worm 7 are opposite. A worm wheel 8 is connected and installed on the rear side of the left and right sides of the worm 7, and the upper end of the worm wheel 8 is connected to the top surface of the driving box 3 through a rotating shaft to form a rotating structure. A threaded column 9 is connected and installed below the worm wheel 8, and the lower end of the threaded column 9 is threadedly connected to the inside of the threaded sleeve 10, and the outside of the threaded sleeve 10 is fixedly installed on the left and right sides of the inner side of the base 1, and the first straight rack 11 is rotatably installed at the bottom of the threaded column 9, and the outer side of the first straight rack 11 is located on the left and right sides of the inner side of the base 1 to form a lifting structure. When the handle 4 is manually rotated, the first bevel gear 5 can be driven to rotate through the rotating shaft, and then the second bevel gear 6 connected with the tooth pattern rotates synchronously, providing mechanical power for the lifting and lowering movement of the upper mold box 19. When the second bevel gear 6 rotates, the worm 7 is driven to rotate at the same time. Since the left and right second bevel gears 6 rotate in opposite directions, the spiral patterns of the worm 7 are opposite, ensuring that the threaded column 9 below rotates in the same direction. When the worm wheel 8 rotates, the threaded column 9 is driven to rotate at the same time, and then the threaded sleeve 10 that penetrates the threaded connection can drive the driving box 3 to rise and fall, and at the same time drive the first straight rack 11 at the bottom to rise and fall, so as to provide mechanical power for the rise of the ejector plate 18.

[0034] The inner side surface of the first spur rack 11 is connected with a transmission gear 12 through teeth, and the transmission gear 12 is connected to the front and rear of the base 1 through a rotating shaft. The other side surface of the transmission gear 12 is connected with a second spur rack 13 through teeth, and a telescopic rod 15 is installed above the second spur rack 13, and the telescopic rod 15 is fixedly installed on the inner top surface of the base 1. The first inclined surface block 14 is fixedly installed at the bottom of the second spur rack 13, and the first inclined surface block 14 is tangent to the inclined surface on the outside of the moving block 16, and the first inclined surface block 14 contacts the moving block 16 to drive the moving block 16 to form a left and right moving structure. The inner inclined surface of the moving block 16 is tangent to the inclined surfaces on the left and right sides of the second inclined surface block 17, and the moving block 16 contacts the second inclined surface block 17 to drive the second inclined surface block 17 to form a lifting structure. When the first spur rack 11 is raised or lowered, the connected transmission gear 12 can drive the second spur rack 13 to move up or down in the opposite direction of the first spur rack 11. During demoulding, when the upper mold box 19 moves upward, it can automatically drive the second spur rack 13 to descend, providing mechanical power for the rise of the ejector plate 18. When the second spur rack 13 descends, it drives the first inclined block 14 to descend and contact the moving block 16, and the left and right moving blocks 16 can be squeezed inward to provide mechanical power for the rise of the ejector plate 18. When the left and right moving blocks 16 move toward each other, the second inclined block 17 can be squeezed upward, thereby driving the ejector plate 18 to be ejected, so as to facilitate the ejection of the mold core of the lower mold box 2, and to facilitate the replacement of mold cores of different shapes and demoulding.

[0035] Working principle:

[0036] During demoulding, the utility model can manually rotate the rotating handle 4 to drive the first bevel gear 5 to rotate through the rotating shaft, and then the second bevel gear 6 connected with the tooth pattern rotates synchronously, and at the same time drives the worm 7 to rotate. Since the left and right second bevel gears 6 rotate in opposite directions, the worm patterns of the worm 7 are opposite to ensure that the threaded column 9 below rotates in the same direction. When the worm wheel 8 rotates, the threaded column 9 is driven to rotate at the same time, and then the threaded sleeve 10 that penetrates the threaded connection can drive the upper mold box 19 below the drive box 3 to rise, and at the same time drive the first spur rack 11 at the bottom to rise, and the second spur rack 13 can be driven down through the connected transmission gear 12, and the first inclined surface block 14 can be driven down to contact the moving block 16. When the left and right moving blocks 16 are moved toward each other, the second inclined surface block 17 can be squeezed out upward, and then the ejection plate 18 can be driven to be ejected, so that the mold core of the lower mold box 2 can be ejected, which is convenient for replacing mold cores of different shapes and demoulding.

[0037] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0038] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mold for molding environmentally friendly plastics, comprising a base (1), characterized in that: A lower mold box (2) is arranged inside the base (1), and a slot hole is opened in the middle of the bottom of the lower mold box (2); a driving box (3) is arranged above the base (1), and an upper mold box (19) is supported and installed in the middle of the bottom surface of the driving box (3), and an injection port (20) is arranged in the middle of the upper mold box (19); threaded columns (9) are arranged on both left and right sides of the bottom of the driving box (3), and the driving box (3) drives the upper mold box (19) and the lower mold box (2) to be connected into a whole; an ejector plate (18) is arranged in the slot hole at the bottom of the lower mold box (2), and a second inclined surface block (17) is fixedly installed in the middle of the bottom of the ejector plate (18); moving blocks (16) are arranged on both left and right sides below the second inclined surface block (17), and the moving blocks (16) are located in the sliding groove at the bottom of the base (1) to form a left-right moving structure.

2. The mold for environmentally friendly plastic molding according to claim 1, characterized in that: A rotating handle (4) is installed in the middle of the top of the driving box (3), and a first bevel gear (5) is installed at the bottom of the rotating handle (4) via a rotating shaft, and second bevel gears (6) are installed on both sides of the first bevel gear (5) via tooth patterns to form a rotating structure.

3. The mold for environmentally friendly plastic molding according to claim 2, characterized in that: The second bevel gear (6) is connected to a worm (7) on both sides, and the spiral patterns on the left and right sides of the worm (7) are opposite. The rear sides of the left and right sides of the worm (7) are connected to a worm wheel (8), and the upper ends of the worm wheels (8) are connected to the top surface of the driving box (3) through a rotating shaft to form a rotating structure.

4. The mold for environmentally friendly plastic molding according to claim 3, characterized in that: A threaded column (9) is connected and installed below the worm wheel (8), and the lower end of the threaded column (9) is threadedly connected to the inside of a threaded sleeve (10), and the outside of the threaded sleeve (10) is fixedly installed on the left and right sides of the inner side of the base (1), and the bottom end of the threaded column (9) is rotatably connected to a first straight rack (11), and the outer sides of the first straight rack (11) are both located on the left and right sides of the inner side of the base (1) to form a lifting structure.

5. The mold for environmentally friendly plastic molding according to claim 4, characterized in that: The inner side surface of the first spur rack (11) is connected with a transmission gear (12) through tooth patterns, and the transmission gear (12) is connected to the front and rear surfaces inside the base (1) through a rotating shaft, and the other side surface of the transmission gear (12) is connected with a second spur rack (13) through tooth patterns, and a telescopic rod (15) is installed above the second spur rack (13), and the telescopic rod (15) is fixedly installed on the top surface inside the base (1).

6. The mold for environmentally friendly plastic molding according to claim 5, characterized in that: A first inclined surface block (14) is fixedly mounted on the bottom of the second spur rack (13), and the first inclined surface block (14) is tangent to the inclined surface on the outside of the moving block (16), and the first inclined surface block (14) contacts the moving block (16) to drive the moving block (16) to form a left-right moving structure.

7. The mold for environmentally friendly plastic molding according to claim 6, characterized in that: The inner inclined surface of the moving block (16) is tangent to the inclined surfaces on the left and right sides of the second inclined surface block (17), and the moving block (16) contacts the second inclined surface block (17) to drive the second inclined surface block (17) to form a lifting structure.

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