An extrusion die for controlling the presence or absence of rubber compound

Abstract

An extrusion die for controlling the presence or absence of rubber compound, belonging to the technical field of plastic molding, includes: a clamping mechanism, a fixing mechanism, a switching mechanism, and a waste discharging mechanism; the switching mechanism includes: a die mounting frame, a single die, a feed pipe, a Y-shaped plate, a pressing plate, a sleeve, and a push rod; the sleeve is installed at a predetermined installation position of the Y-shaped plate by welding; one end of the push rod is fixedly installed at a predetermined installation position of the Y-shaped plate through a fastener; the other end of the push rod is fixedly installed at a designated installation position of the feed pipe through a bolt; the pressing plate is fixedly connected to the sleeve by welding; the electric push rod I pulls the feed pipe to separate the material port provided on the outer wall of the feed pipe from the feed channel, and the electric push rod II pushes the clamping rod to separate from the clamping groove, and the die mounting frame rotates around the triangular block, so as to rotate another single die to the designated position, and the die can be replaced without stopping the machine, realizing the replacement of the die without stopping the machine and the production of products without stopping the machine.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic molding, and particularly relates to an extrusion die for controlling the presence or absence of rubber material. Background Art

[0002] The extrusion die belongs to one type of molding die, and its discharging method is realized through the extrusion action. It is widely used in the molding of plastic parts, connected to an extruder, and used for making pipes or profiled materials.

[0003] The plastic extrusion die is a key device for producing plastic profile products with continuous shapes. During processing, polymers in powder or granular form are added to the barrel of the extruder. Under the action of a screw or a plunger, the polymers move forward along the screw groove or the barrel and gradually melt into a viscous fluid. Then, through the die set at the end of the barrel, a continuous body similar to the shape of the die orifice is formed. Finally, after cooling and shaping, the product of the required shape can be formed.

[0004] The existing extrusion die is connected to the extruder one by one to produce products corresponding to the die. When the product to be produced changes, the die also changes accordingly. In the existing die replacement operation, the equipment needs to be shut down and replaced manually, which reduces the working time of the equipment, lowers the output, and affects the development of the factory. Summary of the Invention

[0005] In view of the above problems, the present invention provides an extrusion die for controlling the presence or absence of rubber material to solve the problem of needing to shut down for replacement in the existing die replacement operation in the background art.

[0006] The technical solution adopted by the present invention is: an extrusion die for controlling the presence or absence of rubber material, comprising: a clamping mechanism, a fixing mechanism, a switching mechanism, and a waste discharging mechanism; the switching mechanism comprises: a die mounting frame, a single die, a feed pipe, a Y-shaped plate, a pressing plate, a sleeve, and a push rod; the sleeve is installed at a predetermined installation position of the Y-shaped plate by welding; one end of the push rod is fixedly installed at a predetermined installation position of the Y-shaped plate through a fastener; the other end of the push rod is fixedly installed at a designated installation position of the feed pipe through a bolt; the pressing plate is fixedly connected to the sleeve by welding; one end of the feed pipe is closed, and a material port is provided on the outer wall.

[0007] Preferably, the die mounting frame comprises: a clamping groove, a sliding hole, a feed channel, an air rod slideway, and a die slot;

[0008] The clamping groove is arranged at the corner position of the die mounting frame; the sliding hole is arranged at the middle position of the die mounting frame, and a plurality of air rod slideways are arranged around the sliding hole. The feed pipe is slidably installed in the sliding hole; a plurality of die slots are provided on the die mounting frame; the feed channel communicates the sliding hole with the die slot.

[0009] Preferably, the single mold includes: mold body Ⅰ, mold body Ⅱ, heat insulation plate, cooling plate, ventilation holes, feed holes, and mold core;

[0010] A cavity is provided inside mold body Ⅰ; the heat insulation plate separates mold body Ⅱ from the cooling plate, and multiple ventilation holes are provided on the cooling plate; the feed hole is provided on mold body Ⅰ to connect the inner cavity of mold body Ⅰ with the outside; one end of the mold core is fixedly installed in the inner cavity of mold body Ⅰ, and the other end continuously passes through mold body Ⅱ, the heat insulation plate, and the cooling plate; the single mold is installed in the mold groove by bolts; the feed hole provided in the single mold is aligned with the feed channel provided in the mold mounting frame.

[0011] Preferably, the fixing mechanism includes: fixing plate, triangular block, connecting sleeve;

[0012] The fixing plate is fixed at a specified position by bolts; the triangular block is installed at a predetermined installation position on the fixing plate by welding; the connecting sleeve is installed at a predetermined installation position on the fixing plate by welding; a feed pipe is slidably installed in the chute provided in the middle of the triangular block; the triangular block is rotatably connected to the mold mounting frame.

[0013] Preferably, the clamping mechanism includes: clamping spring, clamping rod, electric push rod Ⅰ, sliding rod, sliding strip Ⅰ, electric push rod Ⅱ, sliding strip Ⅱ;

[0014] Both ends of the clamping spring are fixedly connected to the clamping rod and the triangular block respectively; the clamping rod is stuck into the card slot to lock the mold mounting frame; sliding strip Ⅱ is fixedly connected to one end of the clamping rod and is slidably connected to the chute provided in the fixing plate; the outer wall of electric push rod Ⅰ is fixedly installed in the chute provided in the middle of the clamping rod; the inner rod of electric push rod Ⅰ is fixedly connected to the sliding rod; sliding strip Ⅰ is fixedly connected to the sliding rod and is slidably connected to the groove of the Y-shaped plate; the sliding rod is slidably installed in the chute provided in the middle of the clamping rod; electric push rod Ⅱ is fixedly installed on the Y-shaped plate, and the inner rod of electric push rod Ⅱ is fixedly connected to sliding strip Ⅰ.

[0015] Preferably, the waste discharge mechanism includes: air pump, air pipe, ventilation rod;

[0016] The air pump is fixedly connected to the Y-shaped plate by bolts; one end of the air pipe is fixedly connected to the exhaust port of the air pump, and the other end is fixedly installed in the hole provided in the pressing plate; the ventilation rod is slidably installed in the air rod slideway, and a spring is wrapped around the outside of the ventilation rod, and the spring connects the ventilation rod and the mold mounting frame; air holes are provided on the outer wall of the ventilation rod, and the end face of the ventilation rod contacts the pressing plate.

[0017] Preferably, there are multiple single molds, and the sizes and shapes of the mold cores in each single mold are different, which are used to produce different plastic products.

[0018] Preferably, the pressing plate is provided with a groove, the groove is aligned with one of the ventilation rods, and a trachea is connected in the groove.

[0019] Advantages of the present invention:

[0020] 1. The electric push rod Ⅰ pulls the feed pipe to separate the material opening provided on the outer wall of the feed pipe from the feed channel. The electric push rod Ⅱ pushes the clamping rod to separate from the clamping groove, and the mold mounting rack rotates around the triangular block, so as to rotate another single mold to the designated position, enabling the mold to be replaced without stopping the machine, and realizing the production of products without stopping the machine.

[0021] 2. The pressing plate presses the ventilation rod to move into the feed channel, so that the air holes provided on the outer wall of the ventilation rod enter the feed channel. At this time, the air pump passes through the air pipe and the ventilation rod to introduce gas into the feed channel. Then the gas passes through the single mold to discharge the residual rubber material in the single mold. After discharging the residual rubber material inside the single mold, the rubber material does not block the single mold, facilitating the next use of the single mold. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the first angle of the overall structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the second angle of the overall structure of the present invention.

[0024] Figure 3 For the present invention Figure 2 Schematic cross-sectional structure diagram at A-A.

[0025] Figure 4 It is a schematic diagram of the structure of some parts of the switching mechanism of the present invention.

[0026] Figure 5 It is a schematic diagram of the structure of parts such as the mold mounting rack, pressing plate, ventilation rod, etc. of the present invention.

[0027] Figure 6 It is a schematic diagram of the structure of the mold mounting rack of the present invention.

[0028] Figure 7 It is a schematic cross-sectional structure diagram of the mold mounting rack of the present invention.

[0029] Figure 8 It is a schematic diagram of the structure of parts such as the pressing plate, ventilation rod, sleeve, etc. of the present invention.

[0030] Figure 9 It is a schematic diagram of the structure of the single mold of the present invention.

[0031] Figure 10 For the present invention Figure 9 Schematic cross-sectional structure diagram at C-C.

[0032] Figure 11 It is a schematic diagram of the structure of some parts of the present invention.

[0033] Reference numerals: 1, mold mounting frame; 2, single mold; 3, fixed plate; 4, triangular block; 5, feed pipe; 6, clamping spring; 7, clamping rod; 8, electric push rod I; 9, sliding rod; 10, slide bar I; 11, electric push rod II; 12, Y-shaped plate; 13, air pump; 14, air pipe; 15, pressing plate; 16, ventilation rod; 17, sleeve; 18, push rod; 19, connecting sleeve; 20, slide bar II; 101, card slot; 102, sliding hole; 103, feed channel; 104, air rod slideway; 105, mold groove; 201, mold body I; 202, mold body II; 203, heat insulation plate; 204, cooling plate; 205, ventilation hole; 206, feed hole; 207, mold core. Detailed implementation mode

[0034] The technical solution of the present invention will be further specifically described below through embodiments and in conjunction with the drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementations disclosed below.

[0035] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of simplifying the description of the present invention and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, in order to facilitate the description, spatial relative terms can be used in the text, for example, "below", "beneath", "under", "above", "over", etc., to describe the relationship of one element or feature relative to other elements or features as shown in the drawings. Spatial relative terms are intended to include different orientations of the device during use or operation in addition to the orientation shown in the drawings. The device can have other orientations (rotated 90 degrees or in other orientations), and the spatial relative descriptive terms used in the text can be interpreted accordingly. It should be noted that in this text, some connection methods, such as "fixed connection, fixed installation", refer to, but are not limited to, the fixation of two components, such as welding, screw nut fixation, adhesion, riveting, interference fit, etc. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood through specific circumstances.

[0036] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0037] For example Figures 1 - 11 As shown, an extrusion die for controlling the presence or absence of rubber compound includes: a clamping mechanism, a fixing mechanism, a switching mechanism, and a waste discharging mechanism.

[0038] In an alternative embodiment of the present invention, except for the parts identical to those in the previous embodiment, the switching mechanism includes: a die mounting frame 1, a single die 2, a feed pipe 5, a Y-shaped plate 12, a pressing plate 15, a sleeve 17, and a push rod 18.

[0039] The sleeve 17 is installed at a predetermined installation position on the Y-shaped plate 12 by welding; one end of the push rod 18 is fixedly installed at a predetermined installation position on the Y-shaped plate 12 through a fastener; the other end of the push rod 18 is fixedly installed at a designated installation position on the feed pipe 5 through a bolt; the pressing plate 15 is fixedly connected to the sleeve 17 by welding; one end of the feed pipe 5 is closed, and a material port is provided on the outer wall. When the material port provided on the outer wall of the feed pipe 5 is aligned with the feed channel 103, the feed pipe 5 feeds the rubber compound into the feed channel 103. When the material port provided on the outer wall of the feed pipe 5 is separated from the feed channel 103, the rubber compound no longer enters the feed channel 103.

[0040] In an alternative embodiment of the present invention, except for the parts identical to those in the previous embodiment, as Figure 6 , Figure 7 shown, the die mounting frame 1 includes: a card slot 101, a sliding hole 102, a feed channel 103, an air rod slideway 104, and a die slot 105;

[0041] The card slot 101 is provided at the corner of the die mounting frame 1; the sliding hole 102 is provided in the middle of the die mounting frame 1, and a plurality of air rod slideways 104 are provided around the sliding hole 102. The feed pipe 5 is slidably installed in the sliding hole 102; a plurality of die slots 105 are provided on the die mounting frame 1; the number of die slots 105 is the same as the number of air rod slideways 104 and they correspond one by one; the feed channel 103 communicates the sliding hole 102 with the die slot 105; the feed channel 103 is used for transporting the rubber compound.

[0042] In an alternative embodiment of the present invention, except for the parts identical to those in the previous embodiment, as Figure 9 , Figure 10 shown, the single die 2 includes: a die body I 201, a die body II 202, a heat insulation plate 203, a cooling plate 204, a ventilation hole 205, a feed hole 206, and a die core 207;

[0043] The mold body I 201 is provided with a cavity; the heat insulation plate 203 separates the mold body II 202 from the cooling plate 204, and the cooling plate 204 is provided with a plurality of ventilation holes 205; the ventilation holes 205 are used to introduce air into the cooling plate 204 to cool the formed plastic product, so as to avoid deformation of the plastic product after high-temperature molding when it is separated from the mold; the feed hole 206 is arranged on the mold body I 201 to communicate the inner cavity of the mold body I 201 with the outside; one end of the mold core 207 is fixedly installed in the inner cavity of the mold body I 201, and the other end continuously passes through the mold body II 202, the heat insulation plate 203, and the cooling plate 204; there is a gap between the mold core 207 and the mold body II 202, the heat insulation plate 203, and the cooling plate 204, and the rubber material is extruded from the gap to form a specified shape.

[0044] In an alternative embodiment of the present invention, except for the parts identical to those in the previous embodiment, as Figure 1 shown, the single mold 2 is installed in the mold groove 105 by bolts; the feed hole 206 provided in the single mold 2 is aligned with the feed channel 103 provided in the mold mounting frame 1, and the rubber material flows from the feed channel 103 into the feed hole 206 and enters the cavity of the mold body I 201.

[0045] In an alternative embodiment of the present invention, except for the parts identical to those in the previous embodiment, as Figure 11 shown, the fixing mechanism includes: a fixing plate 3, a triangular block 4, and a connecting sleeve 19;

[0046] The fixing plate 3 is fixed at a specified position by bolts; the triangular block 4 is installed at a predetermined installation position of the fixing plate 3 by welding; the connecting sleeve 19 is installed at a predetermined installation position of the fixing plate 3 by welding; a feed pipe 5 is slidably installed in the chute provided in the middle of the triangular block 4; the triangular block 4 is rotatably connected to the mold mounting frame 1.

[0047] In an alternative embodiment of the present invention, except for the parts identical to those in the previous embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 11 shown, the clamping mechanism includes: a clamping spring 6, a clamping rod 7, an electric push rod I 8, a sliding rod 9, a sliding strip I 10, an electric push rod II 11, and a sliding strip II 20;

[0048] The two ends of the clamping spring 6 are fixedly connected to the clamping rod 7 and the triangular block 4 respectively; the clamping rod 7 is clamped into the card slot 101 to lock the mold mounting frame 1, which is convenient to keep the equipment stable during the production of plastic products and reduce the amount of defective products; the slide bar II 20 is fixedly connected to one end of the clamping rod 7 and is slidably connected to the chute provided on the fixed plate 3; the outer wall of the electric push rod I 8 is fixedly installed in the chute provided in the middle of the clamping rod 7; the inner rod of the electric push rod I 8 is fixedly connected to the slide rod 9; the slide bar I 10 is fixedly connected to the slide rod 9 and is slidably connected to the groove of the Y-shaped plate 12; the slide rod 9 is slidably installed in the chute provided in the middle of the clamping rod 7; the electric push rod II 11 is fixedly installed on the Y-shaped plate 12, and the inner rod of the electric push rod II 11 is fixedly connected to the slide bar I 10; the electric push rod II 11 pushes the slide bar I 10 to slide in the groove of the Y-shaped plate 12, driving the slide rod 9 to move; the slide rod 9 drives the clamping rod 7 to move, and the clamping rod 7 drives the slide bar II 20 to slide in the chute of the fixed plate 3.

[0049] In an alternative embodiment of the present invention, except for the parts identical to those in the previous embodiment, as Figure 1 , Figure 8 shown, the waste discharge mechanism includes: an air pump 13, an air pipe 14, and an air vent rod 16;

[0050] The air pump 13 is fixedly connected to the Y-shaped plate 12 by bolts; one end of the air pipe 14 is fixedly connected to the exhaust port of the air pump 13, and the other end is fixedly installed in the hole provided on the pressing plate 15; the air vent rod 16 is slidably installed in the air rod slideway 104, and a spring is wrapped around the outside of the air vent rod 16, and the spring connects the air vent rod 16 and the mold mounting frame 1; air holes are provided on the outer wall of the air vent rod 16, and the end face of the air vent rod 16 is in contact with the pressing plate 15; the pressing plate 15 pushes the air vent rod 16 to move into the feeding channel 103. When the air holes provided on the outer wall of the air vent rod 16 enter the feeding channel 103, at this time, the air pump 13 passes the air through the air pipe 14 and the air vent rod 16 into the feeding channel 103.

[0051] In an alternative embodiment of the present invention, except for the parts identical to those in the previous embodiment, as Figure 1 shown, there are multiple single molds 2, and the sizes and shapes of the mold cores 207 in each single mold 2 are different, which are used to produce different plastic products.

[0052] In an alternative embodiment of the present invention, except for the parts identical to those in the previous embodiment, as Figure 8 shown, the pressing plate 15 is provided with a groove, the groove is aligned with one of the air vent rods 16, and an air pipe 14 is connected in the groove; the air pipe 14 passes air into one of the air vent rods 16 to discharge the residual glue in one of the single molds 2.

[0053] Working principle: When this device needs to be used, connect the connecting sleeve 19 to the discharge port of the extruder; the rubber compound fused in the extruder enters the connecting sleeve 19, then enters the feed pipe 5, passes through the channel inside the feed pipe 5 and enters the feed channel 103, and then enters the single mold 2, and is discharged from the device after being shaped by the single mold 2;

[0054] When products of different shapes need to be produced, the electric push rod Ⅰ 8 pulls the sliding rod 9 to slide in the chute provided in the middle of the clamping rod 7, and then drives the Y-shaped plate 12 to move. The Y-shaped plate 12 drives the sleeve 17 to slide in the sliding hole 102. The Y-shaped plate 12 also drives the push rod 18 to move. The push rod 18 pushes the feed pipe 5 to move, separating the material port provided on the outer wall of the feed pipe 5 from the feed channel 103; the sleeve 17 drives the pressing plate 15 to move, and the pressing plate 15 presses the ventilation rod 16 to move into the feed channel 103. When the air holes provided on the outer wall of the ventilation rod 16 enter the feed channel 103, at this time, the air pump 13 passes gas into the feed channel 103 through the air pipe 14 and the ventilation rod 16, and then the gas passes through the single mold 2 to discharge the residual rubber compound in the single mold 2;

[0055] After the residual rubber compound in the single mold 2 is discharged, the electric push rod Ⅱ 11 pushes the slide bar Ⅰ 10 to slide in the groove of the Y-shaped plate 12, driving the sliding rod 9 to move; the sliding rod 9 drives the clamping rod 7 to move, and the clamping rod 7 drives the slide bar Ⅱ 20 to slide in the chute of the fixed plate 3, separating the clamping rod 7 from the card slot 101. At this time, rotate the mold mounting frame 1 around the triangular block 4, so as to rotate another single mold 2 to the designated position. At this time, the electric push rod Ⅱ 11 pulls the slide bar Ⅰ 10 to drive the clamping rod 7 to move towards the position of the card slot 101, and the multiple clamping rods 7 are clamped into the multiple card slots 101 to fix the mold mounting frame 1. Then, the electric push rod Ⅰ 8 pushes the sliding rod 9 to drive the Y-shaped plate 12 to move, and then drives the push rod 18 to pull the feed pipe 5 to move, so that the material port provided on the outer wall of the feed pipe 5 is closed with the feed channel 103. At this time, the rubber compound flows from the feed channel 103 into the rotated single mold 2 to produce another model of product; at the same time, the pressing plate 15 moves, and the ventilation rod 16 moves in the reverse direction under the action of the spring and returns to its original position, then blocking the air rod slideway 104, so that the rubber compound cannot flow out from the air rod slideway 104;

[0056] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An extrusion die for controlling the presence or absence of rubber material, characterized in that: include: A clamping mechanism, a fixing mechanism, a switching mechanism, and a waste discharge mechanism; the switching mechanism comprises: a mold mounting frame (1), a single mold (2), a feed pipe (5), a Y-shaped plate (12), a pressure plate (15), a sleeve (17), and a push rod (18); the sleeve (17) is mounted on a predetermined installation position of the Y-shaped plate (12) by welding; one end of the push rod (18) is fixedly mounted on a predetermined installation position of the Y-shaped plate (12) by a fastener; the other end of the push rod (18) is fastened to a designated installation position of the feed pipe (5) by bolts; the pressure plate (15) is fixedly connected to the sleeve (17) by welding; one end of the feed pipe (5) is closed, and a material port is provided on the outer wall; The mold mounting frame (1) comprises: a card slot (101), a slide hole (102), a feed channel (103), a gas rod slideway (104), and a mold slot (105); The clamping slot (101) is arranged at a corner of the mold mounting frame (1); the sliding hole (102) is arranged at a middle position of the mold mounting frame (1), a plurality of gas rod slideways (104) are arranged around the sliding hole (102), and a feed pipe (5) is slidably installed in the sliding hole (102); a plurality of mold grooves (105) are arranged on the mold mounting frame (1); and the feed channel (103) connects the sliding hole (102) and the mold groove (105); The fixing mechanism comprises: a fixing plate (3), a triangular block (4), and a connecting sleeve (19); The fixing plate (3) is fixed at a specified position by bolts; the triangular block (4) is installed at a predetermined installation position of the fixing plate (3) by welding; the connecting sleeve (19) is installed at a predetermined installation position of the fixing plate (3) by welding; a feed pipe (5) is slidably installed in a slide groove provided in the middle of the triangular block (4); the triangular block (4) is rotatably connected to the mold mounting frame (1); The clamping mechanism comprises: a clamping spring (6), a clamping rod (7), an electric push rod I (8), a sliding rod (9), a sliding bar I (10), an electric push rod II (11), and a sliding bar II (20); The two ends of the clamping spring (6) are fixedly connected to the clamping rod (7) and the triangular block (4); the clamping rod (7) is clamped into the clamping groove (101) to clamp the mold mounting frame (1); the slide bar II (20) is fixedly connected to one end of the clamping rod (7) and is slidably connected to the slide groove provided on the fixed plate (3); the outer wall of the electric push rod I (8) is fixedly installed in the slide groove provided in the middle of the clamping rod (7); the inner rod of the electric push rod I (8) is fixedly connected to the slide bar (9); the slide bar I (10) is fixedly connected to the slide bar (9) and is slidably connected to the groove of the Y-shaped plate (12); the slide bar (9) is slidably installed in the slide groove provided in the middle of the clamping rod (7); the electric push rod II (11) is fixedly installed on the Y-shaped plate (12), and the inner rod of the electric push rod II (11) is fixedly connected to the slide bar I (10).

2. An extrusion die for controlling the presence or absence of rubber material according to claim 1, characterized in that: The single mold (2) comprises: a mold body I (201), a mold body II (202), a heat insulation plate (203), a cooling plate (204), a vent hole (205), a feed hole (206), and a mold core (207); The mold body I (201) is provided with a cavity; the heat insulation plate (203) separates the mold body II (202) from the cooling plate (204), and the cooling plate (204) is provided with a plurality of vent holes (205); the feed hole (206) is provided on the mold body I (201) to connect the inner cavity of the mold body I (201) with the outside; one end of the mold core (207) is fixedly installed in the inner cavity of the mold body I (201), and the other end continuously passes through the mold body II (202), the heat insulation plate (203), and the cooling plate (204).

3. An extrusion die for controlling the presence or absence of rubber material according to claim 1, characterized in that: The single mold (2) is installed in the mold groove (105) by means of bolts; the feed hole (206) provided in the single mold (2) is aligned with the feed channel (103) provided in the mold mounting frame (1).

4. The extrusion die for controlling the presence or absence of rubber material according to claim 1, characterized in that: The waste discharge mechanism comprises: an air pump (13), an air pipe (14), and a ventilation rod (16); The air pump (13) is fixedly connected to the Y-shaped plate (12) by bolts; one end of the air pipe (14) is fixedly connected to the exhaust port of the air pump (13), and the other end is fixedly installed in a hole provided in the pressure plate (15); the ventilation rod (16) is slidably installed in the air rod slideway (104), and the outside of the ventilation rod (16) is wrapped with a spring, and the spring connects the ventilation rod (16) and the mold mounting frame (1); an air hole is provided on the outer wall of the ventilation rod (16), and the end face of the ventilation rod (16) is in contact with the pressure plate (15).

5. The extrusion die for controlling the presence or absence of rubber material according to claim 2, characterized in that: There are a plurality of single molds (2), and the mold core (207) in each single mold (2) has a different size and shape, and is used to produce different plastic products.

6. The extrusion die for controlling the presence or absence of rubber material according to claim 1, characterized in that: The pressing plate (15) is provided with a groove, the groove is aligned with one of the ventilation rods (16), and the air pipe (14) is connected to the groove.

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