Plastic mold capable of reducing flash

Abstract

The invention relates to the technical field of plastic molds, in particular to a plastic mold capable of reducing flash, which comprises a mold I, a round rod I, a mold II, a connecting plate II, a nozzle, a round pipe I and an ejection assembly, all the connecting blocks are jointly and fixedly connected with a mold I; a plurality of round rods I are fixedly connected to the mold I; a mold II is inserted into all the round rods I; a second connecting plate is fixedly connected to the second die. A nozzle is fixedly connected between the mold II and the connecting plate II; the nozzle penetrates through the mold II; when it is detected that plastic melt permeates into the exhaust port, gas is conveyed into the first round hole through the first round pipe, the exhaust port and the interior of the flow channel are in a high-pressure state, the plastic melt can be effectively prevented from continuously permeating into the exhaust port and the flow channel, and then impurities left at the end of the exhaust port can be rapidly scraped away manually only through a scraping piece; and the die does not need to be disassembled for deep cleaning, so that the maintenance efficiency is greatly improved, and a production line is prevented from being stopped.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic molds, and more particularly to a plastic mold capable of reducing flash. Background Art

[0002] Plastic molds are essential components in the manufacturing process of plastic products. During operation, the injection molding machine injects molten plastic into the mold cavity. During this process, the molten plastic squeezes out air trapped within the cavity, forcing it to escape through venting grooves in the mold, ensuring the plastic completely fills the cavity.

[0003] However, when an injection molding machine malfunctions, it can cause the injection pressure to be too high or the resin temperature to be too high, both of which significantly increase the fluidity of the melt. In this case, the melt's fluidity may exceed the designed sealing capacity of the vent groove, causing some plastic melt to overflow into the vent groove. As a result, the vent groove cannot effectively remove air from the mold cavity, which can lead to product quality problems or production failure.

[0004] If the blockage is serious, it is usually necessary to manually disassemble the mold for maintenance, which is not only time-consuming and labor-intensive, but also causes the production line to stagnate, significantly reducing production efficiency.

[0005] In summary, the present application proposes a plastic mold that can reduce flashing and improve the above-mentioned technical problems. Summary of the Invention

[0006] In order to overcome the disadvantages that plastic melt may overflow into the exhaust grooves of the mold and interfere with exhaust, or even cause the exhaust grooves to be blocked, requiring manual disassembly of the mold for maintenance operations, thereby significantly reducing production efficiency, the present invention provides a plastic mold that can reduce overflow.

[0007] Technical solution: A plastic mold capable of reducing flashing, comprising a connecting plate and a connecting block; a plurality of connecting blocks are fixedly connected to the connecting plate; a mold, a round rod, a mold, a connecting plate, a nozzle, a round tube, and an ejector assembly; all the connecting blocks are fixedly connected to the mold; a plurality of round rods are fixedly connected to the mold; all the round rods are commonly plugged into the mold; a connecting plate is fixedly connected to the mold; a nozzle is fixedly connected between the mold and the connecting plate; the nozzle penetrates the mold; a plurality of round tubes are slidably connected to the mold; the mold A cavity is provided on both mold 1 and mold 2; a plurality of exhaust ports are provided on mold 1 and mold 2, and the exhaust ports are connected to the corresponding cavity; a runner is provided on mold 1 and mold 2, and the runner is connected to the corresponding exhaust port; a plurality of circular holes 1 are provided on mold 2, and the circular holes 1 are connected to the runner; each circular tube 1 is located in the corresponding circular hole 1; a plurality of channels 1 are provided on mold 2, and the channels 1 are connected to the corresponding circular holes 1; an ejection assembly is connected to the connecting plate 1, and the ejection assembly is used to eject the plastic parts in the cavity.

[0008] In addition, it is particularly preferred that in the above-mentioned plastic mold that can reduce flashing, the ejection assembly includes a round rod 2, a movable block, a spring 1 and a round rod 3; a plurality of round rods 2 are fixedly connected to the mold 1; all round rods 2 are slidably connected to the movable block; a spring 1 is sleeved on the outside of each round rod 2, one end of the spring 1 is fixedly connected to the mold 1, and the other end of the spring 1 is fixedly connected to the movable block; a plurality of round rods 3 are fixedly connected to the movable block, and the round rod 3 is slidably connected to the mold 1; a round hole 2 is opened on the connecting plate 1, and the round hole 2 is aligned with the movable block.

[0009] In addition, it is particularly preferred that the above-mentioned plastic mold that can reduce overflow also includes an auxiliary component, the auxiliary component includes a round tube two, a movable rod and a spring two; a plurality of round tubes two are fixedly connected to the mold one; a plurality of channels two are opened on the mold one and the mold two; a plurality of movable rods are sealed and slidably connected to the mold one and the mold two, and the movable rods are aligned with the corresponding channels two; a plurality of springs two are fixedly connected to each movable rod; the mold one and the mold two are fixed to the corresponding spring two; a cavity is formed between the mold one and the mold two and the corresponding movable rod; a plurality of channels three are opened on the mold one and the mold two; every two adjacent cavities are connected through the corresponding channel three; each round tube two is connected to the corresponding cavity through the corresponding channel three; each circular hole one is connected to the corresponding cavity through the corresponding channel three; a plurality of circular holes three are opened on the mold two, and the circular hole three is connected to the corresponding circular hole one; each round tube two is inserted into the corresponding circular hole three; and semicircular grooves are opened on both sides of the round tube one.

[0010] Furthermore, it is particularly preferred that, in the above-mentioned plastic mold capable of reducing overflow, each of the second round tubes is provided with a plurality of slots.

[0011] Furthermore, it is particularly preferred that, in the above-mentioned plastic mold capable of reducing flashing, both ends of the circular tube are chamfered.

[0012] Furthermore, it is particularly preferred that, in the above-mentioned plastic mold capable of reducing flashing, protrusions are provided at both ends of the movable rod.

[0013] In addition, it is particularly preferred that the above-mentioned plastic mold capable of reducing overflow further includes an L-shaped block; a plurality of L-shaped blocks are fixedly connected to the mold 2, and the L-shaped blocks are in contact with the corresponding round tube 1.

[0014] Furthermore, it is particularly preferred that, in the above-mentioned plastic mold capable of reducing overflow, a plurality of grooves are provided on the connecting block and the second mold.

[0015] Furthermore, it is particularly preferred that, in the above-mentioned plastic mold capable of reducing flashing, the positions of the connecting plate 1 and the connecting plate 2 close to the corresponding grooves are both provided with frosted surfaces.

[0016] Furthermore, it is particularly preferred that, in the above-mentioned plastic mold capable of reducing flashing, one end of the round rod is chamfered.

[0017] Beneficial effects: 1. When it is detected that the plastic melt is penetrating into the exhaust port, gas is transported to the circular hole 1 through the circular tube 1, so that the exhaust port and the inside of the flow channel are in a high-pressure state, which can effectively prevent the plastic melt from continuing to penetrate into the exhaust port and the flow channel. Afterwards, the impurities remaining at the end of the exhaust port can be quickly scraped off manually using a scraper, without the need to disassemble the mold for deep cleaning, which greatly improves maintenance efficiency and avoids production line stagnation. Second, the circular tube 1 can transport part of the gas into the cavity, thereby driving the movable rod to move through the air, so that the movable rod squeezes out the coolant in the channel 2, thereby preventing the coolant from exchanging heat with the vent and the plastic melt in the runner, avoiding the reduction in fluidity due to the heat exchange between the plastic melt and the coolant, and thus avoiding the problem of the gas pushing the plastic melt in the vent and runner back into the mold cavity, which is conducive to reducing the difficulty of cleaning; 3. When in use, the round tubes 1 and 2 for conveying air can also lock the mold 1 and the mold 2 to prevent the mold 1 and the mold 2 from separating and falling off during transportation, which is beneficial to improving the convenience and stability of manual transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a plastic mold capable of reducing flashing according to the present invention is shown; Figure 2 An exploded view of a plastic mold capable of reducing flashing according to the present invention is shown; Figure 3 Shows a left side view of the second mold of the present invention; Figure 4Shows a schematic structural diagram of the ejection assembly of the present invention; Figure 5 shows a schematic structural diagram of the auxiliary component of the present invention; Figure 6 It shows the structural schematic diagram of the circular tube 2 of the present invention; Figure 7 The figure shows a schematic structural diagram of the L-shaped block of the present invention.

[0019] In the figure: 1-connecting plate one, 2-connecting block, 3-mold one, 4-round rod one, 5-mold two, 6-connecting plate two, 7-nozzle, 8-round tube one, 9-plastic part, 201-round rod two, 202-movable block, 203-spring one, 204-round rod three, 205-round tube two, 206-movable rod, 207-spring two, 208-L-shaped block, 91-cavity, 92-exhaust port, 93-flow channel, 94-round hole one, 95-channel one, 96-round hole two, 97-channel two, 98-cavity, 99-channel three, 910-round hole three, 911-slot, 912-groove, 913-semicircular groove. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0021] Example 1, a plastic mold capable of reducing flashing, such as Figures 1-6 As shown, it includes a connecting plate 1 and a connecting block 2; two connecting blocks 2 are bolted to the connecting plate 1, and the connecting plate 1 is set to be made of metal; it also includes a mold 3, a round rod 4, a mold 2 5, a connecting plate 2 6, a nozzle 7, a round tube 8 and an ejector assembly; all the connecting blocks 2 are bolted to the mold 3; four round rods 14 are bolted to the mold 1 3; all the round rods 14 are commonly plugged into the mold 2 5; the mold 2 5 is bolted to the connecting plate 2 6; the mold 2 5 and the connecting plate 2 6 are commonly fixed with a nozzle 7; the nozzle 7 passes through the mold 2 5; there are two sliding connections on the mold 2 5 A circular tube 8 is provided; a cavity 91 is provided on each of mold 1 3 and mold 2 5; a plurality of exhaust ports 92 are provided on each of mold 1 3 and mold 2 5 , and the exhaust ports 92 are connected to the corresponding cavity 91; a flow channel 93 is provided on each of mold 1 3 and mold 2 5 , and the flow channel 93 is connected to the corresponding exhaust port 92; two circular holes 94 are provided on mold 2 5 , and the circular holes 94 are connected to the flow channel 93; each circular tube 8 is located in the corresponding circular hole 94; two channels 95 are provided on mold 2 5 , and the channels 95 are connected to the corresponding circular holes 94; an ejection assembly is connected to the connecting plate 1 .

[0022] The ejection assembly includes a round rod 201, a movable block 202, a spring 1 203 and a round rod 3 204; two round rods 201 are bolted to the mold 1 3, and the round rods 201 are made of metal; all round rods 201 are slidably connected to the movable block 202; a spring 1 203 is sleeved on the outside of each round rod 201, one end of the spring 1 203 is fixed to the mold 1 3, and the other end of the spring 1 203 is fixed to the movable block 202, and the spring 1 203 is made of metal; four round rods 3 204 are fixed to the movable block 202, and the round rods 3 204 are slidably connected to the mold 1 3, and the plastic part 9 in the cavity 91 is pushed out through the round rods 3 204; a round hole 2 96 is opened on the connecting plate 1, and the round hole 2 96 is aligned with the movable block 202.

[0023] It also includes an auxiliary component, which includes a round tube 205, a movable rod 206 and a spring 207; two round tubes 205 are fixedly connected to the mold 1 3; six channels 2 97 are opened on the mold 1 3 and the mold 2 5; six movable rods 206 are sealed and slidably connected to the mold 1 3 and the mold 2 5, and the movable rods 206 are aligned with the corresponding channels 2 97, and the coolant in the channel 2 97 is squeezed out through the movable rods 206; two springs 207 are fixedly connected to each movable rod 206; the mold 1 3 and the mold 2 5 are fixedly connected to the corresponding spring 207; the mold 1 3 and the mold 2 5 are A cavity 98 is formed between the corresponding movable rod 206; a plurality of channels 3 99 are provided on both mold 1 3 and mold 2 5; every two adjacent cavities 98 are connected through the corresponding channel 3 99; each circular tube 2 205 is connected to the corresponding cavity 98 through the corresponding channel 3 99; each circular hole 1 94 is connected to the corresponding cavity 98 through the corresponding channel 3 99; two circular holes 3 910 are provided on mold 2 5, and the circular holes 3 910 are connected to the corresponding circular holes 1 94; each circular tube 2 205 is inserted into the corresponding circular hole 3 910; semicircular grooves 913 are provided on both sides of the circular tube 1 8.

[0024] First, install connecting plate 1 on the driving component of the injection molding machine, install connecting plate 2 6 on the frame of the injection molding machine, install round tube 1 8 on the telescopic end of the external telescopic cylinder, connect the external air pipe to round tube 1 8, connect the external coolant delivery system to channel 2 97, install the external thermal imager on the side of mold 2 5, connect the injection port of the injection molding machine to the nozzle 7, align the ejector pin on the injection molding machine with round hole 2 96, and complete the preparation operation.

[0025] During injection molding, the driving component of the injection molding machine drives the connecting plate 1 and the parts thereon to move to the right, so that the round rod 14 is inserted into the mold 2 5, and the mold 13 is buckled with the mold 2 5. At this time, the two cavities 91 are combined to form a complete mold cavity, and all the exhaust ports 92 and the runners 93 are combined to form a complete exhaust channel. Then the plastic melt is transported to the nozzle 7 by the injection molding machine, and the plastic melt flows into the mold cavity through the nozzle 7, and squeezes the air in the mold cavity, so that the air flows into the runner 93 through the exhaust port 92, and then flows from the runner 93 into the circular hole 1 94, and then flows from the circular hole 1 94 into the channel 1 95, and finally is discharged from the channel 1 95 to the outside air until the plastic melt fills the mold cavity. The injection molding machine stops transporting the plastic melt to the nozzle 7, and then the external coolant delivery system transports coolant to the channel 2 97, and the coolant is used to cool the mold 1 3, the mold 2 5 and the plastic melt in the mold cavity. The temperature drops, causing the plastic melt to solidify and form a plastic part 9, and then the external coolant delivery system stops delivering coolant to the second channel 97. The driving component of the injection molding machine drives the connecting plate 1 and the parts thereon to move to the left, and the mold 13 drives the plastic part 9 to move to the left. When the connecting plate 1 moves to the left, the second round hole 96 penetrates to the outside of the ejector on the injection molding machine, so that the ejector pushes the movable block 202 to slide on the round rod 201 and compresses the spring 1 203. The movable block 202 drives the round rod 3 204 to move, so that the round rod 3 204 pushes the plastic part 9 on the mold 3 off, completing the material removal operation. Subsequently, the driving component of the injection molding machine drives the connecting plate 1 and the parts thereon to move to the right, so that the connecting plate 1 is away from the ejector on the injection molding machine, so that the spring 1 203 rebounds and drives the movable block 202 and the round rod 3 204 to move back to their original position, and then repeats the above operation to perform the next injection molding operation.

[0026] During the injection molding process, the plastic melt flowing into the mold cavity is monitored by an external thermal imager. When the plastic melt is detected to penetrate into the exhaust port 92, the external telescopic cylinder is started through program control. The external telescopic cylinder drives the circular tube 18 to move toward the middle of the mold 2 5, so that the circular tube 18 blocks the channel 195. Then, the external gas pipe supplies gas to the circular tube 18, and the gas flows into the circular hole 194 through the circular tube 18, and then flows into the exhaust port 92 and the flow channel 93 from the circular hole 194, and penetrates into the exhaust port 92. The plastic melt in the vent 92 and runner 93 is pushed back into the mold cavity, and the inner side of the vent 92 and runner 93 is in a high pressure state, thereby preventing the plastic melt from continuing to penetrate into the vent 92 and runner 93. Then the external coolant delivery system delivers coolant to the channel 2 97 to cool the plastic melt and solidify it into a defective plastic part 9. Then the external air delivery pipe stops delivering gas to the round tube 1 8, and the external telescopic cylinder drives the round tube 1 8 to move back to its original position, stops blocking the channel 1 95, and makes the vent The inner sides of the air port 92, the flow channel 93 and the circular hole 1 94 are restored to normal pressure, and then the mold 1 3 is controlled to separate from the mold 2 5, and the defective plastic part 9 is taken out, that is, most of the solidified plastic melt impurities in the mold cavity are cleared out. In this process, only a small amount of plastic melt will penetrate to the end of the exhaust port 92 and solidify to form impurities. After the mold 1 3 is separated from the mold 2 5, the exhaust port 92 is exposed. At this time, a scraper can be used to quickly scrape off the impurities remaining at the end of the exhaust port 92 without disassembling the mold for deep cleaning. During use, when it is detected that the plastic melt has penetrated into the exhaust port 92, gas is transported into the circular hole 1 94 through the circular tube 1 8, so that the exhaust port 92 and the flow channel 93 are in a high pressure state, which can effectively prevent the plastic melt from continuing to penetrate into the exhaust port 92 and the flow channel 93. Afterwards, a scraper can be used to quickly scrape off the impurities remaining at the end of the exhaust port 92 without disassembling the mold for deep cleaning, which greatly improves maintenance efficiency and avoids production line stagnation.

[0027] Between the two injection molding operations, the external coolant delivery system should stop delivering coolant to the second channel 97. After the first injection molding operation is completed, the coolant in the second channel 97 is in a high temperature state, so that the temperature of the corresponding positions of the mold 1 3 and the mold 2 5 is relatively high, so that during the second injection molding operation, the plastic melt will not solidify immediately during the injection into the mold cavity to ensure that it can fully fill the mold cavity. However, in the process of preventing the plastic melt from penetrating into the exhaust port 92 and the runner 93, even if the coolant in the second channel 97 is in a high temperature state at this time, its temperature will be lower than that of the plastic melt. After the plastic melt penetrates into the exhaust port 92 and the flow channel 93, it will exchange heat with the coolant, thereby weakening the fluidity of the plastic melt, and further increasing the difficulty of the gas in pushing the plastic melt in the exhaust port 92 and the flow channel 93 back into the mold cavity. Therefore, after the external gas pipe delivers gas to the round tube 1 8, part of the gas directly flows into the channel 3 99 and the cavity 98 on the mold 2 5, and part of the gas flows into the channel 3 99 and the cavity 98 on the mold 1 3 through the round tube 205, and then the gas pushes the movable rod 206 to move and stretches the spring 207, so that the movable rod 206 pushes the channel 3 99 and the cavity 98 back into the mold cavity. The coolant in the second mold 97 is squeezed out, thereby preventing the coolant from exchanging heat with the plastic melt to ensure the fluidity of the plastic melt, so that the gas can push the plastic melt in the exhaust port 92 and the flow channel 93 back into the mold cavity. Then, the external telescopic cylinder drives the round tube 1 8 to continue to move toward the middle of the mold 2 5, so that the semicircular groove 913 on the round tube 1 8 is aligned with the channel 3 99 and the round tube 2 205, so that the gas in the cavity 98 and the channel 3 99 is discharged from the semicircular groove 913, so that the spring 207 rebounds and drives the movable rod 206 to move back to its original position, so that the movable rod 206 stops blocking the channel 2 97, and then the The cooling liquid is delivered to the second channel 97 through the external cooling liquid delivery system to cool the plastic melt in the mold cavity. When in use, the circular tube 1 8 can deliver part of the gas to the cavity 98, thereby driving the movable rod 206 to move through the air, so that the movable rod 206 squeezes out the cooling liquid in the second channel 97, thereby preventing the cooling liquid from exchanging heat with the plastic melt in the exhaust port 92 and the flow channel 93, avoiding the reduction in fluidity due to the heat exchange between the plastic melt and the cooling liquid, thereby avoiding the problem of the gas pushing the plastic melt in the exhaust port 92 and the flow channel 93 back into the mold cavity, which is conducive to reducing the difficulty of cleaning.

[0028] Example 2, based on Example 1, Figure 4-Figure 7 As shown, each second circular tube 205 is provided with two slots 911 , and the first circular tube 8 can be inserted into the slots 911 to lock the second circular tube 205 .

[0029] The end of the second round tube 205 is chamfered to make it easier for the second round tube 205 to be inserted into the second mold 5.

[0030] Both ends of the movable rod 206 are provided with protrusions. The spring 207 which is initially in a stretched state applies a pulling force to the movable rod 206 so that the protrusions abut against the mold 1 3 or the mold 2 5, thereby limiting the movable rod 206.

[0031] mold 2 5 is bolted to two L-shaped blocks 208, the L-shaped block 208 contacts the corresponding round tube 8, and the L-shaped block 208 is used to limit the round tube 8 to prevent it from falling off.

[0032] Two grooves 912 are provided on the connecting block 2 and the mold 2 5 , and the connecting plate 1 or the connecting plate 2 6 can be manually grabbed from the grooves 912 , which is convenient for manual handling of the mold.

[0033] The connection plates 1 and 2 6 are both provided with frosted surfaces near the corresponding grooves 912 , which is beneficial to improving friction.

[0034] The end of the round rod 4 is chamfered to make it easier to insert the round rod 4 into the mold 2 5.

[0035] During the transportation and storage of this mold, all external parts on the mold are manually removed, and then the round tube 1 8 is pushed toward the center of the mold 2 5, so that the end of the round tube 1 8 is inserted into the card slot 911, so that the round tube 1 8 cooperates with the round tube 2 205 to lock the mold 1 3 and the mold 2 5, avoiding the separation and falling of the mold 1 3 and the mold 2 5 during transportation, which is beneficial to improving the convenience and stability of manual transportation; when in use, the round tube 1 8 and the round tube 2 205 used for conveying air can also lock the mold 1 3 and the mold 2 5, avoiding the separation and falling of the mold 1 3 and the mold 2 5 during transportation, which is beneficial to improving the convenience and stability of manual transportation.

[0036] It should be understood that this embodiment is only used to illustrate the present invention and is not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall equally within the scope limited by the appended claims of the application.

Claims

1. A plastic mold capable of reducing overflow, comprising a connecting plate (1); a plurality of connecting blocks (2) are fixedly connected to the connecting plate (1); and the characteristics are: All the connecting blocks (2) are fixedly connected to a mold 1 (3); a plurality of round rods 1 (4) are fixedly connected to the mold 1 (3); all the round rods 1 (4) are plugged into a mold 2 (5); a connecting plate 2 (6) is fixedly connected to the mold 2 (5); a nozzle (7) is fixedly connected between the mold 2 (5) and the connecting plate 2 (6); the nozzle (7) passes through the mold 2 (5); a plurality of round tubes 1 (8) are slidably connected to the mold 2 (5); a cavity (91) is provided on each of the mold 1 (3) and the mold 2 (5); a plurality of exhaust ports (92) are provided on each of the mold 1 (3) and the mold 2 (5), and the exhaust ports (92) are provided on each of the mold 1 (3) and the mold 2 (5). ) is connected to the corresponding cavity (91); a flow channel (93) is provided on each of mold 1 (3) and mold 2 (5), and the flow channel (93) is connected to the corresponding exhaust port (92); a plurality of circular holes (94) are provided on mold 2 (5), and the circular holes (94) are connected to the flow channel (93); each circular tube (8) is located in the corresponding circular hole (94); a plurality of channels (95) are provided on mold 2 (5), and the channels (95) are connected to the corresponding circular holes (94); an ejection assembly is connected to the connecting plate (1), and the ejection assembly is used to eject the plastic part (9) in the cavity (91).

2. A plastic mold capable of reducing flashing according to claim 1, characterized in that: The ejection assembly includes a round rod 2 (201), a movable block (202), a spring 1 (203) and a round rod 3 (204); a plurality of round rods 2 (201) are fixedly connected to the mold 1 (3); all the round rods 2 (201) are slidably connected to the movable block (202); a spring 1 (203) is sleeved on the outer side of each round rod 2 (201), one end of the spring 1 (203) is fixedly connected to the mold 1 (3), and the other end of the spring 1 (203) is fixedly connected to the movable block (202); a plurality of round rods 3 (204) are fixedly connected to the movable block (202), and the round rod 3 (204) is slidably connected to the mold 1 (3); a round hole 2 (96) is opened on the connecting plate 1 (1), and the round hole 2 (96) is aligned with the movable block (202).

3. A plastic mold capable of reducing flashing according to claim 2, characterized in that: The auxiliary components include a second round tube (205), a movable rod (206) and a second spring (207); a plurality of second round tubes (205) are fixedly connected to the mold one (3); a plurality of second channels (97) are opened on the mold one (3) and the mold two (5); a plurality of movable rods (206) are sealed and slidably connected to the mold one (3) and the mold two (5), and the movable rods (206) are aligned with the corresponding second channels (97); a plurality of second springs (207) are fixedly connected to each movable rod (206); the mold one (3) and the mold two (5) are fixedly connected to the corresponding second springs (207); the mold one (3) and the mold two (5) are fixedly connected to the corresponding movable rods (206) ) form a cavity (98); a plurality of channels (99) are provided on both mold 1 (3) and mold 2 (5); each two adjacent cavities (98) are connected through the corresponding channel (99); each circular tube 2 (205) is connected to the corresponding cavity (98) through the corresponding channel (99); each circular hole 1 (94) is connected to the corresponding cavity (98) through the corresponding channel (99); a plurality of circular holes (910) are provided on mold 2 (5), and the circular holes (910) are connected to the corresponding circular holes (94); each circular tube 2 (205) is inserted into the corresponding circular hole (910); and semicircular grooves (913) are provided on both sides of the circular tube 1 (8).

4. A plastic mold capable of reducing flashing according to claim 3, characterized in that: Each of the second circular tubes (205) is provided with a plurality of slots (911).

5. A plastic mold capable of reducing flashing according to claim 4, characterized in that: The end of the second circular tube (205) is provided with a chamfer.

6. A plastic mold capable of reducing flashing according to any one of claims 3 to 5, characterized in that: Both ends of the movable rod (206) are provided with protrusions.

7. A plastic mold capable of reducing flashing according to claim 6, characterized in that: It also includes an L-shaped block (208); a plurality of L-shaped blocks (208) are fixedly connected to the mold 2 (5), and the L-shaped blocks (208) are in contact with the corresponding round tube 1 (8).

8. A plastic mold capable of reducing flashing according to claim 7, characterized in that: A plurality of grooves (912) are provided on the connecting block (2) and the second mold (5).

9. A plastic mold capable of reducing flashing according to claim 8, characterized in that: The connection plate 1 (1) and the connection plate 2 (6) are both provided with frosted surfaces at positions close to the corresponding grooves (912).

10. The plastic mold capable of reducing flashing according to claim 6, wherein: One end of the round rod (4) is provided with a chamfer.

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