A plastic molding die with a limit structure

Abstract

The present invention discloses a plastic molding die provided with a limiting structure, specifically relating to the technical field of molding dies. The present invention includes a base, on the top of the base, convex dies are symmetrically arranged. On the top of the base, a top plate is provided. On the bottom of the bottom, concave dies are symmetrically arranged. At the four corners of the top of the base, first limiting rods are fixedly connected. On the top of the top of the base, a number of second limiting rods are symmetrically and fixedly connected. The outer surfaces of the four first limiting rods and the number of second limiting rods are all inserted into the inner wall of the top plate. By arranging a first stirring blade and a second stirring blade to stir the molten plastic, and two clappers continuously clapping on both sides of the base and the top plate, the present invention can effectively promote the discharge of air in the molten plastic, thereby reducing the cavities generated in the plastic product, improving the quality of the plastic product, and enhancing the practicability of the plastic molding die.

Description

Technical Field

[0001] The invention relates to the technical field of molding dies, and in particular to a plastic molding die provided with a limiting structure. Background Art

[0002] Plastic molding molds are tools used in the plastic processing industry to match plastic molding machines and give plastic products complete configurations and precise dimensions. It consists of several groups of parts, and this combination contains a molding cavity. During injection molding, the mold is clamped on the injection molding machine, and the molten plastic is injected into the molding cavity, where it is cooled and shaped. Then the upper and lower molds are separated, and the product is ejected from the mold cavity by the ejection system. Finally, the mold is closed for the next injection molding. The entire injection molding process is carried out in a cycle.

[0003] To this end, the Chinese patent with authorization announcement number 202111125003.4 provides a plastic molding precision mold, including a mold base, a lower mold base and an upper mold base; a lower mold base is arranged inside the mold base, an upper mold base is arranged at the top of the mold base, and a limiting mechanism is arranged between the mold base and the lower mold base; the limiting mechanism includes a limiting cavity, a limiting spring, a limiting block, a limiting groove, a top block, a threaded rod and a sliding assembly, the limiting cavity is opened at the bottom end of both sides of the lower mold base, the limiting spring is arranged inside the limiting cavity, the limiting block is sleeved inside the limiting cavity, and the limiting block is engaged with the limiting groove, the limiting groove is opened inside the mold base, the top block is arranged inside the limiting groove, the threaded rod is threadedly connected with the top block, and the side of the threaded rod away from the top block passes through the mold base and extends to the outside of the mold base; the limiting mechanism facilitates the connection between the lower mold base and the mold base, and facilitates the replacement of the lower mold base.

[0004] However, the plastic injected into the plastic molding mold is in liquid form, and when the solid plastic material is melted, air is mixed into the material and bubbles are formed in the material. These bubbles often cannot be eliminated by themselves. After the liquid plastic is injected into the plastic molding mold, the bubbles that cannot be eliminated in the material will form voids in the plastic finished product, which will affect the actual quality of the plastic finished product and reduce the practicality of the plastic molding mold. Summary of the invention

[0005] The present invention proposes a plastic molding mold with a limiting structure to solve the problem that after liquid plastic is injected into a plastic molding mold, bubbles that cannot be eliminated in the material will form cavities in the plastic finished product, which will further affect the actual quality of the plastic finished product and reduce the practicality of the plastic molding mold.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A plastic molding die provided with a limiting structure, including a base, convex dies are symmetrically arranged on the top of the base, a top plate is arranged on the top of the base, concave dies are symmetrically arranged on the bottom of the bottom, first limiting rods are fixedly connected to the four corners of the top of the base, several second limiting rods are symmetrically and fixedly connected to the top of the top of the base, the outer surfaces of the four first limiting rods and several second limiting rods are inserted into the inner wall of the top plate, an injection pipe is fixedly connected to the middle of the top of the top plate, the inner wall of the injection pipe is communicated with the inner wall of the top plate, and an auxiliary device for removing air in the material by stirring and patting is arranged on the top of the top.

[0007] The effects achieved by the above components are: By setting the auxiliary device, the air in the molten plastic raw material can be discharged by stirring and patting, thereby reducing the cavities generated in the plastic finished product, improving the quality of the plastic finished product, and enhancing the practicability of the plastic molding die.

[0008] Preferably, the auxiliary device includes a first auxiliary pipe, the outer surface of the first auxiliary pipe is inserted into the inner wall of the injection pipe, several first stirring blades are uniformly fixedly connected to the inner wall of the first auxiliary pipe, a second auxiliary pipe is arranged at one end of the first auxiliary pipe, the outer surface of the second auxiliary pipe is fixedly connected to the inner wall of the injection pipe, one end of the second auxiliary pipe abuts against one end of the first auxiliary pipe, several second stirring blades are uniformly fixedly connected to the inner wall of the second auxiliary pipe, several first stirring blades are arranged inside the second auxiliary pipe, the first stirring blades and the second stirring blades are arranged in an alternating manner, a first gear is fixedly connected to the outer surface of the first auxiliary pipe, second gears are symmetrically meshed with the outer surface of the first gear, a rotating shaft is fixedly connected to the inner wall of the second gear, the outer surface of one end of the rotating shaft is rotatably connected to the inner wall of the top plate, a first pulley is fixedly connected to the outer surface of one of the rotating shafts, an auxiliary belt is arranged on the outer surface of the first pulley, a second pulley is arranged inside the auxiliary belt, a motor is arranged on one side of the top plate, the output end of the motor is fixedly connected to one side of the second pulley, a quarter gear is fixedly connected to one end of the rotating shaft, a double-sided toothed plate is arranged between the two quarter gears, the first auxiliary pipe is arranged inside the double-sided toothed plate, one of the quarter gears abuts against the outer surface of the double-sided side plate, extension plates are fixedly connected to both ends of the double-sided rack, and a clapper is arranged on one side of the extension plate.

[0009] The effects achieved by the above components are as follows: By setting the first stirring blade, the second stirring blade and two clappers, when the motor is started, the output end of the motor will drive the second pulley to rotate. The second pulley will drive the auxiliary belt to rotate. The auxiliary belt will drive the first pulley to rotate. The first pulley will drive a rotating shaft to rotate. The rotating shaft will drive the second gear connected thereto to rotate. The second gear will drive the first gear to rotate. The first gear will drive another second gear and the first auxiliary pipe to rotate. When the first auxiliary pipe rotates, it will drive the first stirring blade to rotate. The first stirring blade extends into the second auxiliary pipe, so that when the first stirring blade rotates, stirring and mutual friction will occur between the first stirring blade and the second stirring blade. Then, when the molten plastic raw material is injected through the first auxiliary pipe, the first stirring blade and the second stirring blade will stir the molten plastic raw material, thereby assisting in discharging the air in the plastic. At the same time, the rotation directions of the two second gears are exactly the same. The two second gears will drive the quarter gear connected to the rotating shaft to rotate in the same direction. During the rotation of the quarter gear, only one quarter gear will engage with the double-sided tooth plate. This makes the double-sided tooth plate move reciprocally on the top of the top plate under the drive of the two quarter gears. When the double-sided tooth plate moves reciprocally, it will drive the clappers connected to the extension plate to move synchronously. During the reciprocating movement of the two clappers, they will continuously slap the two sides of the base and the top plate, thereby causing the mold to vibrate, which helps to discharge the air in the molten plastic in the mold. Then, under the combined action of the first stirring blade and the second stirring blade stirring the molten plastic and the two clappers continuously slapping the two sides of the base and the top plate, the air in the molten plastic can be effectively discharged.

[0010] Preferably, a ring is fixedly connected to the outer surface of the first auxiliary pipe, a ring groove is formed in the inner wall of the injection pipe, and the outer surface of the ring is arranged on the inner wall of the ring groove.

[0011] The effects achieved by the above components are as follows: By setting the ring and the ring groove, the first auxiliary pipe and the injection pipe are limited. When the first auxiliary pipe rotates on the inner wall of the injection pipe, it will drive the ring to rotate synchronously on the inner wall of the ring groove. At the same time, under the joint limitation of the second auxiliary pipe, the relative displacement between the first auxiliary pipe and the injection pipe can be prevented, so as to avoid the disengagement between the first gear and the second gear, and ensure the coherence of the overall structure.

[0012] Preferably, sliders are symmetrically and rotatably connected to the outer surface of the first auxiliary pipe, sliding grooves are symmetrically formed in the inner wall of the double-sided tooth plate, and the outer surfaces of the sliders are slidably connected to the inner walls of the sliding grooves.

[0013] The effects achieved by the above components are as follows: By setting the slider and the sliding groove, the first auxiliary pipe and the double-sided toothed plate are limited. When the double-sided toothed plate moves on the top of the top plate, it will drive the sliding groove to move on the outer surface of the slider. At the same time, when the first auxiliary pipe rotates, the connected slider will not block the rotation of the first auxiliary pipe. At the same time, the slider can limit the double-sided toothed plate to ensure that the double-sided toothed plate moves more stably.

[0014] Preferably, stoppers are symmetrically arranged on both sides of the double-sided toothed plate, and one side of the stopper is fixedly connected to one side of the double-sided toothed plate.

[0015] The effects achieved by the above components are as follows: By setting the stoppers, the two ends on both sides of the double-sided toothed plate can be blocked. Furthermore, when the four-tooth ring disengages from the double-sided toothed plate, it can ensure that the double-sided toothed plate stops moving in the specified direction, making the regulation of the double-sided toothed plate by the four-tooth gear more sensitive.

[0016] Preferably, rubber plates are arranged on the sides of the two clappers close to each other, and one side of the rubber plate is fixedly connected to one side of the clapper.

[0017] The effects achieved by the above components are as follows: By setting the rubber plates, they can replace one side of the clappers to abut against the outer surfaces of the base and the top plate. Since the clappers will exert a certain force on the outer surfaces of the base and the top plate when they strike the outer surfaces of the base and the top plate, the rubber plates can dissipate part of the force, thereby reducing the damage to the base and the top plate caused by the clappers hitting the base and the top plate, and improving the service life of the plastic molding die.

[0018] Preferably, round hole blocks are symmetrically and fixedly connected to the bottom of the extension plate. Two threaded pins are inserted into the inner walls of the round hole blocks. One end of the threaded pin is fixedly connected to one side of the clapper. Gaskets and nuts are arranged on the outer surface of the threaded pin. The gasket is arranged between the nut and the round hole block. The outer surface of the threaded pin is inserted into the inner wall of the gasket, and the outer surface of the threaded pin is threadedly inserted into the inner wall of the nut.

[0019] The effects achieved by the above components are as follows: By setting the round hole block, under the action of the threaded pin, the threaded pin is inserted into the inner wall of the corresponding round hole block, so that one side of the round hole block abuts against one side of the clapper board. Then, the gasket and the nut are sleeved on one end of the threaded pin. Rotate the nut, so that the nut drives the gasket to move on the outer surface of the threaded pin until one side of the gasket abuts against one side of the round hole block and one side of the nut abuts against one side of the gasket. Then, the nut can fix and limit between the round hole block and the threaded pin, can fix between the round hole block and the threaded pin, and further can fix between the extension plate and the clapper board. The gasket can replace one side of the nut to abut against one side of the round hole block, which is beneficial to preventing the nut from loosening easily, and at the same time is convenient for separately disassembling the clapper board, and further is convenient for maintaining and replacing the clapper board and the rubber plate.

[0020] Preferably, auxiliary plates are fixedly connected to the middle parts of the sides of the two clapper boards away from each other. Slots are symmetrically formed on one side of each auxiliary plate, and the size and shape of the outer surface of the round hole block are communicated with the inner wall of the slot.

[0021] The effects achieved by the above components are as follows: By setting the auxiliary plates and the slots, when the threaded pin is inserted into the corresponding round hole block, the round hole block just enters the inner wall of the slot. The slot can position the round hole block, and further is convenient for quickly installing between the round hole block and the threaded pin. At the same time, the auxiliary plates and the slots can assist in limiting between the round hole blocks, and further can improve the stability of the connection between the extension plate and the clapper board.

[0022] Preferably, a heat dissipation device is arranged on one side of the top plate. The heat dissipation device includes two fan blades. Auxiliary slots are symmetrically formed on the top of the top. The positions of the auxiliary slots coincide with those of the concave molds. The rotating shaft is arranged inside the auxiliary slots. The outer surface of the rotating shaft is fixedly connected to the inner wall of the fan blade, and the fan blade is arranged inside the auxiliary slots.

[0023] The effects achieved by the above components are as follows: By setting the auxiliary slots and the fan blades, the existence of the auxiliary slots can reduce the distance between the fan blades and the concave molds. When the rotating shaft rotates, it will drive the fan blades to rotate. When the fan blades rotate, they will drive the air inside the auxiliary slots to flow rapidly, and further can assist in quickly dissipating heat from the molten plastic in the concave molds, can reduce the time required for the molten plastic to solidify, and improve the working efficiency.

[0024] Preferably, through slots are formed on three of the inner side surfaces of the auxiliary slots, and the sides of the two auxiliary slots close to each other are not communicated with each other.

[0025] The effects achieved by the above components are as follows: By setting the through slot, the auxiliary slot is connected to the outside, facilitating the exchange of air with the outside of the auxiliary slot, enhancing the heat dissipation capacity of the fan blade. At the same time, the two auxiliary slots are not connected to each other, preventing the air flow between the two auxiliary slots from affecting each other and reducing the heat dissipation efficiency.

[0026] In summary, the beneficial effects of the present invention are:

[0027] By setting the first stirring blade and the second stirring blade to stir the molten plastic, and the two clappers continuously pat the two sides of the base and the top plate, it can effectively promote the discharge of air in the molten plastic, thereby reducing the voids generated in the plastic product and improving the quality of the plastic product and the practicality of the plastic molding die.

[0028] By setting the auxiliary slot and the fan blade, the existence of the auxiliary slot can reduce the distance between the fan blade and the concave mold. When the rotating shaft rotates, it will drive the fan blade to rotate. When the fan blade rotates, it will drive the air inside the auxiliary slot to flow rapidly, thereby assisting the rapid heat dissipation of the molten plastic in the concave mold, reducing the time required for the molten plastic to solidify, and improving the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a three-dimensional schematic diagram of the present invention.

[0030] Figure 2 is a three-dimensional structural schematic diagram of the base of the present invention.

[0031] Figure 3 is a three-dimensional structural schematic diagram of the top plate of the present invention.

[0032] Figure 4 is a cross-sectional structural schematic diagram of the injection pipe of the present invention.

[0033] Figure 5 is the present invention Figure 4 magnified structural schematic diagram at A.

[0034] Figure 6 is a three-dimensional structural schematic diagram of the first gear of the present invention.

[0035] Figure 7 is a three-dimensional structural schematic diagram of the double-sided toothed plate of the present invention.

[0036] Figure 8 is the present invention Figure 7 magnified structural schematic diagram at B.

[0037] Figure 9 is the present invention Figure 7 magnified structural schematic diagram at C.

[0038] Figure 10 This is a schematic three-dimensional structure diagram of the clapper board of the present invention.

[0039] Description of the reference numerals in the drawings:

[0040] 1. Base; 2. Convex mold; 3. Top plate; 4. Concave mold; 5. First limiting rod; 6. Second limiting rod; 7. Injection pipe; 8. Auxiliary device; 81. First auxiliary pipe; 82. First stirring blade; 83. Second auxiliary pipe; 84. Second stirring blade; 85. First gear; 86. Second gear; 87. Rotating shaft; 88. First pulley; 89. Auxiliary belt; 810. Second pulley; 811. Motor; 812. Quarter gear; 813. Double-sided toothed plate; 814. Extension plate; 815. Clapper board; 816. Ring; 817. Ring groove; 818. Slide block; 819. Slide groove; 820. Stopper; 821. Rubber plate; 822. Round hole block; 823. Threaded pin; 824. Gasket; 825. Nut; 826. Auxiliary plate; 827. Card slot; 9. Heat dissipation device; 91. Auxiliary slot; 92. Fan blade; 93. Through slot. Detailed implementation manners

[0041] Referring to Figures 1-3 As shown, this embodiment discloses a base 1, which is characterized in that: convex molds 2 are symmetrically arranged on the top of the base 1, a top plate 3 is arranged on the top of the base 1, concave molds 4 are symmetrically arranged at the bottom of the bottom, first limiting rods 5 are fixedly connected to the four corners of the top of the base 1, and a plurality of second limiting rods 6 are symmetrically and fixedly connected to the top of the top of the base 1. The outer surfaces of the four first limiting rods 5 and the plurality of second limiting rods 6 are inserted into the inner wall of the top plate 3. The middle of the top of the top plate 3 is fixedly connected with an injection pipe 7, and the inner wall of the injection pipe 7 is communicated with the inner wall of the top plate 3. An auxiliary device 8 for removing air in the material by stirring and patting is arranged on the top of the top. By arranging the auxiliary device 8, the air in the molten plastic raw material can be discharged by stirring and patting, thereby reducing the cavities generated in the plastic finished product and improving the quality of the plastic finished product and the practicability of the plastic forming mold.

[0042] Referring to Figures 4-7As shown in the figure, this embodiment discloses that the auxiliary device 8 includes a first auxiliary pipe 81. The outer surface of the first auxiliary pipe 81 is inserted into the inner wall of the injection pipe 7. A plurality of first stirring blades 82 are uniformly and fixedly connected to the inner wall of the first auxiliary pipe 81. One end of the first auxiliary pipe 81 is provided with a second auxiliary pipe 83. The outer surface of the second auxiliary pipe 83 is fixedly connected to the inner wall of the injection pipe 7. One end of the second auxiliary pipe 83 abuts against one end of the first auxiliary pipe 81. A plurality of second stirring blades 84 are uniformly and fixedly connected to the inner wall of the second auxiliary pipe 83. A plurality of first stirring blades 82 are arranged inside the second auxiliary pipe 83. The first stirring blades 82 and the second stirring blades 84 are arranged in an alternating manner. The outer surface of the first auxiliary pipe 81 is fixedly connected to a first gear 85. The outer surface of the first gear 85 is symmetrically meshed with a second gear 86. The inner wall of the second gear 86 is fixedly connected to a rotating shaft 87. The outer surface of one end of the rotating shaft 87 is rotatably connected to the inner wall of the top plate 3. The outer surface of one of the rotating shafts 87 is fixedly connected to a first pulley 88. An auxiliary belt 89 is arranged on the outer surface of the first pulley 88. A second pulley 810 is arranged inside the auxiliary belt 89. A motor 811 is arranged on one side of the top plate 3. The output end of the motor 811 is fixedly connected to one side of the second pulley 810. One end of the rotating shaft 87 is fixedly connected to a quarter gear 812. A double-sided toothed plate 813 is arranged between the two quarter gears 812. The first auxiliary pipe 81 is arranged inside the double-sided toothed plate 813. One of the quarter gears 812 abuts against the outer surface of the double-sided side plate. The two ends of the double-sided rack are fixedly connected to extension plates 814. A clapper 815 is arranged on one side of the extension plate 814. By arranging the first stirring blades 82, the second stirring blades 84 and the two clappers 815, when the motor 811 is started, the output end of the motor 811 will drive the second pulley 810 to rotate. The second pulley 810 will drive the auxiliary belt 89 to rotate. The auxiliary belt 89 will drive the first pulley 88 to rotate. The first pulley 88 will drive one of the rotating shafts 87 to rotate. This rotating shaft 87 will drive the second gear 86 connected thereto to rotate. The second gear 86 will drive the first gear 85 to rotate. The first gear 85 will drive the other second gear 86 and the first auxiliary pipe 81 to rotate. When the first auxiliary pipe 81 rotates, it will drive the first stirring blades 82 to rotate. The first stirring blades 82 extend into the second auxiliary pipe 83, so that when the first stirring blades 82 rotate, stirring and mutual friction will be generated between the first stirring blades 82 and the second stirring blades 84. Then, when the molten plastic raw material is injected through the first auxiliary pipe 81, the first stirring blades 82 and the second stirring blades 84 will stir the molten plastic raw material, thereby assisting in discharging the air in the plastic;Meanwhile, the rotation directions of the two second gears 86 are exactly the same. The two second gears 86 will drive the quarter gears 812 connected to the rotating shaft 87 to rotate in the same direction. During the rotation of the quarter gears 812, only one quarter gear 812 will engage with the double-sided toothed plate 813. This causes the double-sided toothed plate 813 to reciprocate on the top of the top plate 3 under the drive of the two quarter gears 812. When the double-sided toothed plate 813 reciprocates, it will drive the clapper boards 815 connected to the extension plates 814 to move synchronously. During the reciprocating movement of the two clapper boards 815, they will continuously slap both sides of the base 1 and the top plate 3, thereby vibrating the mold, which helps to discharge the air in the molten plastic in the mold. Furthermore, under the combined action of the first stirring blade 82 and the second stirring blade 84 stirring the molten plastic, and the two clapper boards 815 continuously slapping both sides of the base 1 and the top plate 3, it can effectively promote the discharge of air in the molten plastic.;

[0043] Referring to Figures 4-8 As shown, in this embodiment, a ring 816 is fixedly connected to the outer surface of the first auxiliary pipe 81. A ring groove 817 is provided on the inner wall of the injection pipe 7. The outer surface of the ring 816 is arranged on the inner wall of the ring groove 817. By providing the ring 816 and the ring groove 817, the first auxiliary pipe 81 and the injection pipe 7 are limited. When the first auxiliary pipe 81 rotates on the inner wall of the injection pipe 7, it will drive the ring 816 to rotate synchronously on the inner wall of the ring groove 817. At the same time, under the joint limitation of the second auxiliary pipe 83, it can prevent relative displacement between the first auxiliary pipe 81 and the injection pipe 7, thereby causing the first gear 85 and the second gear 86 to disengage, ensuring the coherence of the overall structure; Symmetrically rotatably connected to the outer surface of the first auxiliary pipe 81 are sliders 818. Symmetrically provided on the inner wall of the double-sided toothed plate 813 are sliding grooves 819. The outer surface of the slider 818 is slidably connected to the inner wall of the sliding groove 819. By providing the sliders 818 and the sliding grooves 819, the first auxiliary pipe 81 and the double-sided toothed plate 813 are limited. When the double-sided toothed plate 813 moves on the top of the top plate 3, it will drive the sliding groove 819 to move on the outer surface of the slider 818. At the same time, when the first auxiliary pipe 81 rotates, the connected slider 818 will not block the rotation of the first auxiliary pipe 81. At the same time, the slider 818 can limit the double-sided toothed plate 813, ensuring that the double-sided toothed plate 813 moves more stably; Symmetrically provided on both sides of the double-sided toothed plate 813 are stoppers 820. One side of the stopper 820 is fixedly connected to one side of the double-sided toothed plate 813. By providing the stoppers 820, the two ends on both sides of the double-sided toothed plate 813 can be blocked. Furthermore, when the quarter gear ring disengages from the double-sided toothed plate 813, it can ensure that the double-sided toothed plate 813 stops moving in the specified direction, making the regulation of the double-sided toothed plate 813 by the quarter gears 812 more sensitive.

[0044] Referring toFigures 7-10 As shown, in this embodiment, rubber plates 821 are provided on the sides of two strikers 815 close to each other. One side of the rubber plate 821 is fixedly connected to one side of the striker 815. By providing the rubber plate 821, it can replace one side of the striker 815 to abut against the outer surfaces of the base 1 and the top plate 3. Since the striker 815 will generate a certain force on the outer surfaces of the base 1 and the top plate 3 when it strikes the outer surfaces of the base 1 and the top plate 3, the rubber plate 821 can dissipate part of the force, thereby reducing the damage caused to the base 1 and the top plate 3 when the striker 815 strikes them, and improving the service life of the plastic forming mold; symmetrically fixed to the bottom of the extension plate 814 are round hole blocks 822. Two threaded pins 823 are inserted into the inner wall of the round hole block 822. One end of the threaded pin 823 is fixedly connected to one side of the striker 815. Gaskets 824 and nuts 825 are provided on the outer surface of the threaded pin 823. The gasket 824 is arranged between the nut 825 and the round hole block 822. The outer surface of the threaded pin 823 is inserted into the inner wall of the gasket 824, and the outer surface of the threaded pin 823 is threadedly inserted into the inner wall of the nut 825. By providing the round hole block 822, under the action of the threaded pin 823, the threaded pin 823 is inserted into the inner wall of the corresponding round hole block 822, so that one side of the round hole block 822 abuts against one side of the striker 815. Then, the gasket 824 and the nut 825 are sleeved on one end of the threaded pin 823. Rotate the nut 825 so that the nut 825 drives the gasket 824 to move on the outer surface of the threaded pin 823 until one side of the gasket 824 abuts against one side of the round hole block 822 and one side of the nut 825 abuts against one side of the gasket 824. Then, the nut 825 can fix and limit between the round hole block 822 and the threaded pin 823, and can fix between the round hole block 822 and the threaded pin 823, thereby being able to fix between the extension plate 814 and the striker 815. And the gasket 824 can replace one side of the nut 825 to abut against one side of the round hole block 822, which is beneficial to preventing the nut 825 from loosening easily and also facilitating the separate disassembly of the striker 815, and thus facilitating the maintenance and replacement of the striker 815 and the rubber plate 821; fixedly connected to the middle of the sides of the two strikers 815 away from each other are auxiliary plates 826. Symmetrically opened on one side of the auxiliary plate 826 are card slots 827. The size and shape of the outer surface of the round hole block 822 are communicated with the inner wall of the card slot 827. By providing the auxiliary plate 826 and the card slot 827, when the threaded pin 823 is inserted into the corresponding round hole block 822, the round hole block 822 just enters the inner wall of the card slot 827. The card slot 827 can position the round hole block 822, thereby facilitating the quick installation between the round hole block 822 and the threaded pin 823. At the same time, the auxiliary plate 826 and the card slot 827 can assist in limiting between the round hole blocks 822, thereby improving the stability of the connection between the extension plate 814 and the striker 815.

[0045] Refer to Figure 6As shown in the figure, one side of the top plate 3 is provided with a heat dissipation device 9. The heat dissipation device 9 includes two fan blades 92. Auxiliary grooves 91 are symmetrically opened at the top of the top. The positions of the auxiliary grooves 91 coincide with those of the concave mold 4. The rotating shaft 87 is arranged inside the auxiliary grooves 91. The outer surface of the rotating shaft 87 is fixedly connected to the inner wall of the fan blade 92. The fan blade 92 is arranged inside the auxiliary grooves 91. By providing the auxiliary grooves 91 and the fan blades 92, the existence of the auxiliary grooves 91 can reduce the distance between the fan blades 92 and the concave mold 4. When the rotating shaft 87 rotates, it will drive the fan blade 92 to rotate. When the fan blade 92 rotates, it will drive the air inside the auxiliary grooves 91 to flow rapidly, thereby being able to assist the molten plastic in the concave mold 4 to dissipate heat rapidly, being able to reduce the time required for the molten plastic to solidify, and improving the working efficiency; three of the inner walls of the auxiliary grooves 91 are each provided with a through groove 93. The sides of the two auxiliary grooves 91 that are close to each other are not interconnected. By providing the through grooves 93, the auxiliary grooves 91 are made to communicate with the outside, thereby facilitating the exchange of air with the outside of the auxiliary grooves 91 and improving the heat dissipation capacity of the fan blades 92. At the same time, the two auxiliary grooves 91 are not interconnected, which can prevent the air flow between the two auxiliary grooves 91 from affecting each other and resulting in a reduction in the heat dissipation efficiency.

[0046] The working principle is as follows: First, install the clapper 815. Insert the round hole block 822 into the inner wall of the card slot 827 so that the threaded pin 823 enters the inner wall of the round hole block 822. Then, sleeved the gasket 824 and the nut 825 on one end of the threaded pin 823. Rotate the nut 825 so that the nut 825 drives the gasket 824 to move on the outer surface of the threaded pin 823 until one side of the gasket 824 abuts against one side of the round hole block 822 and one side of the nut 825 abuts against one side of the gasket 824. Then, the nut 825 can fix and limit between the round hole block 822 and the threaded pin 823, can fix between the round hole block 822 and the threaded pin 823, and further can fix between the extension plate 814 and the clapper 815. And the gasket 824 can replace one side of the nut 825 to abut against one side of the round hole block 822, which is beneficial to prevent the nut 825 from loosening easily and also facilitates the separate disassembly of the clapper 815, and further facilitates the maintenance and replacement of the clapper 815 and the rubber plate 821; Start the motor 811, the output end of the motor 811 will drive the second pulley 810 to rotate, the second pulley 810 will drive the auxiliary belt 89 to rotate, the auxiliary belt 89 will drive the first pulley 88 to rotate, the first pulley 88 will drive a rotating shaft 87 to rotate, the rotating shaft 87 will drive the second gear 86 connected thereto to rotate, the second gear 86 will drive the first gear 85 to rotate. Under the limitation of the ring 816 and the ring groove 817, the first gear 85 will drive another second gear 86 and the first auxiliary pipe 81 to rotate. When the first auxiliary pipe 81 rotates, it will drive the first stirring blade 82 to rotate. The first stirring blade 82 extends into the second auxiliary pipe 83, so that when the first stirring blade 82 rotates, it will generate stirring and mutual friction with the second stirring blade 84. Then, when the molten plastic raw material is injected through the first auxiliary pipe 81, the first stirring blade 82 and the second stirring blade 84 will stir the molten plastic raw material, thereby helping to discharge the air in the plastic;Meanwhile, the rotation directions of the two second gears 86 are exactly the same. The two second gears 86 will drive the quarter gears 812 connected to the rotating shaft 87 to rotate in the same direction. During the rotation of the quarter gears 812, only one quarter gear 812 will engage with the double-sided tooth plate 813. Under the limitation of the slider 818 and the chute 819, the double-sided tooth plate 813 will reciprocate on the top of the top plate 3 under the drive of the two quarter gears 812. When the double-sided tooth plate 813 reciprocates, it will drive the clapper 815 connected to the extension plate 814 to move synchronously. During the reciprocating movement of the two clappers 815, the rubber plate 821 on one side of the clapper 815 will continuously slap both sides of the base 1 and the top plate 3. The rubber plate 821 can replace one side of the clapper 815 to abut against the outer surfaces of the base 1 and the top plate 3. Since a certain force will be generated on the outer surfaces of the base 1 and the top plate 3 when the clapper 815 slaps the outer surfaces of the base 1 and the top plate 3, the rubber plate 821 can dissipate part of the force, thereby reducing the damage caused to the base 1 and the top plate 3 when the clapper 815 slaps them. At the same time, it will cause the mold to vibrate, which helps to discharge the air in the molten plastic in the mold. Therefore, under the combined action of the first stirring blade 82 and the second stirring blade 84 stirring the molten plastic and the two clappers 815 continuously slapping both sides of the base 1 and the top plate 3, the air in the molten plastic can be effectively discharged. The existence of the auxiliary groove 91 can reduce the distance between the fan blade 92 and the concave mold 4. When the rotating shaft 87 rotates, it will drive the fan blade 92 to rotate. When the fan blade 92 rotates, it will drive the air inside the auxiliary groove 91 to flow rapidly, thereby being able to assist the molten plastic in the concave mold 4 to dissipate heat quickly, reducing the time required for the molten plastic to solidify, and improving work efficiency. At the same time, the through groove 93 enables the auxiliary groove 91 to communicate with the outside, facilitating the exchange of air with the outside of the auxiliary groove 91 and enhancing the heat dissipation capacity of the fan blade 92. At the same time, the two auxiliary grooves 91 do not communicate with each other, preventing the air flow between the two auxiliary grooves 91 from affecting each other and resulting in a reduction in heat dissipation efficiency.;

Claims

1. A plastic molding mold with a limiting structure, comprising a base (1), characterized in that: The top of the base (1) is symmetrically provided with a male mold (2), the top of the base (1) is provided with a top plate (3), the bottom of the bottom is symmetrically provided with a female mold (4), the four corners of the top of the base (1) are fixedly connected with first limit rods (5), the top of the top of the base (1) is symmetrically fixedly connected with a plurality of second limit rods (6), the outer surfaces of the four first limit rods (5) and the plurality of second limit rods (6) are inserted into the inner wall of the top plate (3), the middle of the top of the top plate (3) is fixedly connected with an injection tube (7), the inner wall of the injection tube (7) is connected with the inner wall of the top plate (3), and the top of the top is provided with an auxiliary device (8) for removing air from the material by stirring and beating;The auxiliary device (8) comprises a first auxiliary tube (81), the outer surface of the first auxiliary tube (81) is inserted into the inner wall of the injection tube (7), the inner wall of the first auxiliary tube (81) is evenly and fixedly connected with a plurality of first stirring blades (82), a second auxiliary tube (83) is arranged at one end of the first auxiliary tube (81), the outer surface of the second auxiliary tube (83) is fixedly connected with the inner wall of the injection tube (7), one end of the second auxiliary tube (83) abuts against one end of the first auxiliary tube (81), and the inner wall of the second auxiliary tube (83) is evenly and fixedly connected with a plurality of second stirring blades (84), a plurality of the first stirring blades (82) are arranged inside the second auxiliary tube (83), the first stirring blades (82) and the second stirring blades (84) are arranged alternately, the first stirring blades (82) extend into the second auxiliary tube (83), so that the first stirring blades (82) and the second stirring blades (84) generate stirring and mutual friction when rotating, and then when the molten plastic raw material is injected through the first auxiliary tube (81), the first stirring blades (82) and the second stirring blades (84) stir the molten plastic raw material, thereby helping to discharge the air in the plastic. The outer surface of the first auxiliary tube (81) is fixedly connected to a first gear (85), the outer surface of the first gear (85) is symmetrically meshed with a second gear (86), the inner wall of the second gear (86) is fixedly connected to a rotating shaft (87), the outer surface of one end of the rotating shaft (87) is rotatably connected to the inner wall of the top plate (3), the outer surface of one rotating shaft (87) is fixedly connected to a first pulley (88), the outer surface of the first pulley (88) is provided with an auxiliary belt (89), the inner surface of the auxiliary belt (89) is provided with a second pulley (810), the top plate (3) is fixedly connected to the outer surface of the first pulley (88), the outer surface of the first pulley (88) is provided with an auxiliary belt (89), the inner surface of the auxiliary belt (89) is provided with a second pulley (810), A motor (811) is provided on one side, the output end of the motor (811) is fixedly connected to one side of the second pulley (810), one end of the rotating shaft (87) is fixedly connected to a four-point gear (812), a double-sided toothed plate (813) is provided between the two four-point gears (812), the first auxiliary tube (81) is provided inside the double-sided toothed plate (813), one of the four-point gears (812) is in contact with the outer surface of the double-sided side plate, and the two ends of the double-sided toothed plate are fixedly connected to an extension plate (814), and a clapper plate (815) is provided on one side of the extension plate (814). ; 2. A plastic forming mold with a limiting structure according to claim 1, characterized in that: A circular ring (816) is fixedly connected to the outer surface of the first auxiliary tube (81), an annular groove (817) is provided on the inner wall of the injection tube (7), and the outer surface of the circular ring (816) is arranged on the inner wall of the annular groove (817).

3. A plastic forming mold with a limiting structure according to claim 2, characterized in that: The outer surface of the first auxiliary tube (81) is symmetrically rotatably connected with a slider (818), the inner wall of the double-sided toothed plate (813) is symmetrically provided with a slide groove (819), and the outer surface of the slider (818) is slidably connected to the inner wall of the slide groove (819).

4. A plastic forming mold with a limiting structure according to claim 3, characterized in that: Stoppers (820) are symmetrically arranged on both sides of the double-sided toothed plate (813), and one side of the stoppers (820) is fixedly connected to one side of the double-sided toothed plate (813).

5. The plastic forming mold with a limiting structure according to claim 4, characterized in that: A rubber plate (821) is provided on one side of the two clappers (815) that are close to each other, and one side of the rubber plate (821) is fixedly connected to one side of the clappers (815).

6. The plastic forming mold with a limiting structure according to claim 5, characterized in that: The bottom of the extension plate (814) is symmetrically fixedly connected with a circular hole block (822), the inner wall of the circular hole block (822) is provided with two threaded pins (823), one end of the threaded pin (823) is fixedly connected to one side of the clapper board (815), the outer surface of the threaded pin (823) is provided with a gasket (824) and a nut (825), the gasket (824) is arranged between the nut (825) and the circular hole block (822), the outer surface of the threaded pin (823) is inserted into the inner wall of the gasket (824), and the outer surface of the threaded pin (823) is threadedly inserted into the inner wall of the nut (825).

7. The plastic forming mold with a limiting structure according to claim 6, characterized in that: An auxiliary plate (826) is fixedly connected to the middle of the two clapper plates (815) at the side away from each other. A clamping groove (827) is symmetrically opened on one side of the auxiliary plate (826). The size and shape of the outer surface of the circular hole block (822) are connected to the inner wall of the clamping groove (827).

8. The plastic forming mold with a limiting structure according to claim 7, characterized in that: A heat dissipation device (9) is provided on one side of the top plate (3), and the heat dissipation device (9) includes two fan blades (92). An auxiliary groove (91) is symmetrically provided on the top of the top, and the position of the auxiliary groove (91) coincides with that of the concave mold (4). The rotating shaft (87) is arranged inside the auxiliary groove (91), and the outer surface of the rotating shaft (87) is fixedly connected to the inner wall of the fan blade (92), and the fan blade (92) is arranged inside the auxiliary groove (91).

9. The plastic forming mold with a limiting structure according to claim 8, characterized in that: Through grooves (93) are provided on three side surfaces of the inner wall of the auxiliary groove (91), and the adjacent sides of two auxiliary grooves (91) are not connected to each other.

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