Extrusion die capable of controlling existence of sizing material

Abstract

An extrusion die capable of controlling existence of sizing materials belongs to the technical field of plastic forming and comprises a clamping mechanism, a fixing mechanism, a switching mechanism and a waste discharging mechanism. The switching mechanism comprises a mold mounting frame, a single mold, a feeding pipe, a Y-shaped plate, a pressing plate, a sleeve and a push rod; the sleeve is mounted at a preset mounting position of the Y-shaped plate in a welding manner; one end of the push rod is fixedly mounted at a preset mounting position of the Y-shaped plate through a fastener; the other end of the push rod is fastened and mounted at a specified mounting position of the feeding pipe through a bolt; the pressing plate is fixedly connected with the sleeve in a welding manner; an electric push rod I pulls a feeding pipe to enable a material opening formed in the outer wall of the feeding pipe to be separated from a feeding channel, an electric push rod II pushes a clamping rod to be separated from a clamping groove, and a mold mounting frame rotates around a triangular block, so that another single mold is rotated to a designated position, the mold can be descended to be replaced in a non-stop state, non-stop mold replacement is achieved, and the mold replacement efficiency is improved. And products can be produced without shutdown.

Description

Technical Field

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

[0002] Extrusion mold is a kind of molding mold, but its material discharging method is realized by extrusion. It is widely used in the molding of plastic parts, connected with the extruder, and used to make pipes or special-shaped materials.

[0003] Plastic extrusion dies are key equipment for producing plastic profile products with continuous shapes. During processing, powdered or granular polymers are added to the extruder barrel. Under the action of the screw or plunger, the polymer moves forward along the screw groove or barrel and gradually melts into a viscous fluid. Then, it passes through the die set at the end of the barrel to form a continuum similar to the shape of the die mouth. Finally, it is cooled and shaped to form a product of the desired shape.

[0004] The existing extrusion mold is connected to the extruder one-to-one to produce products corresponding to the mold. When the products are changed, the mold will change accordingly. In the existing mold replacement operation, the equipment needs to be shut down and replaced by manpower, which reduces the working time of the equipment, reduces 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, so as to solve the problem of the need to stop the machine for replacement during the existing die replacement operation mentioned in the background art.

[0006] The technical solution used in 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 discharge mechanism; the switching mechanism comprises: a die mounting frame, a single die, a feed pipe, a Y-shaped plate, a pressure 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 by a fastener; the other end of the push rod is fastened to a designated installation position of the feed pipe by bolts; the pressure 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 mold mounting frame comprises: a card slot, a slide hole, a feed channel, a gas rod slideway, and a mold slot; The card slot is arranged at the corner of the mold mounting frame; the slide hole is arranged in the middle position of the mold mounting frame, and a plurality of gas rod slideways are arranged around the slide hole, and a feed pipe is slidably installed in the slide hole; a plurality of mold grooves are arranged on the mold mounting frame; and the feed channel connects the slide hole and the mold groove.

[0008] Preferably, the single mold includes: mold body I, mold body II, heat insulation board, cooling board, vent hole, feed hole, and mold core; A cavity is provided in mold body I; the heat insulation plate separates mold body II from the cooling plate, and the cooling plate is provided with multiple ventilation holes; a 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.

[0009] Preferably, the fixing mechanism comprises: a fixing plate, a triangular block, and a connecting sleeve; The fixing plate is fixed at the designated position by bolts; the triangular block is installed on the fixing plate by welding; the connecting sleeve is installed at the predetermined installation position of the fixing plate by welding; a feed pipe is slidably installed in a slide groove provided in the middle of the triangular block; the triangular block is rotatably connected to the mold mounting frame.

[0010] Preferably, the clamping mechanism comprises: a clamping spring, a clamping rod, an electric push rod I, a sliding rod, a sliding bar I, an electric push rod II, and a sliding bar II; The two ends of the clamping spring are fixedly connected to the clamping rod and the triangular block; the clamping rod is clamped into the clamping groove to clamp the mold mounting frame; the slide bar II is fixedly connected to one end of the clamping rod and is slidably connected to the slide groove provided on the fixed plate; the outer wall of the electric push rod I is fixedly installed in the slide groove provided in the middle of the clamping rod; the inner rod of the electric push rod I is fixedly connected to the slide rod; the slide bar I is fixedly connected to the slide rod and is slidably connected to the groove of the Y-shaped plate; the slide rod is slidably installed in the slide groove provided in the middle of the clamping rod; the electric push rod II is fixedly installed on the Y-shaped plate, and the inner rod of the electric push rod II is fixedly connected to the slide bar I.

[0011] Preferably, the waste discharge mechanism comprises: an air pump, an air pipe, and a vent rod; 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 pressure plate; the ventilation rod is slidably installed in the air rod slideway, and the outside of the ventilation rod is wrapped with a spring, and the spring connects the ventilation rod and the mold mounting frame; an air hole is provided on the outer wall of the ventilation rod, and the end face of the ventilation rod is in contact with the pressure plate.

[0012] Preferably, there are multiple single molds, and the size and shape of the mold core in each single mold are different, so as to be used for producing different plastic products.

[0013] Preferably, a groove is provided on the pressing plate, the groove is aligned with one of the ventilation rods, and an air pipe is connected in the groove.

[0014] Beneficial effects of the present invention: 1. Electric push rod I pulls the feed pipe to separate the material port on the outer wall of the feed pipe from the feed channel, and electric push rod II pushes the clamping rod to separate from the clamping slot. The mold mounting frame rotates around the triangular block, thereby rotating another single mold to the specified position. The mold can be lowered for replacement without stopping the machine, realizing non-stop mold replacement and non-stop production.

[0015] 2. The pressure plate presses the vent rod to move into the feed channel, so that the air holes on the outer wall of the vent rod enter the feed channel. At this time, the air pump introduces gas into the feed channel through the air pipe and the vent rod, and then the gas passes through the single mold to discharge the residual rubber material in the single mold. After the residual rubber material inside the single mold is discharged, the rubber material does not block the single mold, which is convenient for the next use of the single mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first angle.

[0017] Figure 2 It is a schematic diagram of the second angle of the overall structure of the present invention.

[0018] Figure 3 For the present invention Figure 2 Schematic diagram of the cross-sectional structure at AA.

[0019] Figure 4 It is a structural schematic diagram of some parts of the switching mechanism of the present invention.

[0020] Figure 5 It is a schematic structural diagram of the mold mounting frame, pressing plate, ventilation rod and other parts of the present invention.

[0021] Figure 6 It is a structural schematic diagram of the mold mounting frame of the present invention.

[0022] Figure 7 It is a schematic cross-sectional structure diagram of the mold mounting frame of the present invention.

[0023] Figure 8 It is a schematic structural diagram of the pressing plate, ventilation rod, sleeve and other parts of the present invention.

[0024] Fig. 9 It is a schematic structural diagram of a single mold of the present invention.

[0025] Fig.10 For the present invention Fig. 9 Schematic diagram of the cross-sectional structure at CC.

[0026] Fig.11 It is a schematic diagram of the structure of some parts of the present invention.

[0027] 1. Mould mounting frame; 2. Single mould; 3. Fixing plate; 4. Triangular block; 5. Feed pipe; 6. Clamping spring; 7. Clamping rod; 8. Electric push rod I; 9. Slide bar; 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. Clamping groove; 102. Slide hole; 103. Feed channel; 104. Air rod slideway; 105. Mould groove; 201. Mould body I; 202. Mould body II; 203. Heat insulation board; 204. Cooling board; 205. Ventilation hole; 206. Feed hole; 207. Mould core. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further specifically described below by way of embodiments and in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of 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 violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0029] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed when used, which is only for the convenience of describing the simplified description of the invention patent, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention patent. In addition, for the convenience of explanation, spatial relative terms, such as "below", "below", "below", "above", "above", etc., may be used in the text to describe the relationship of an element or feature relative to other elements or features as shown in the figure. Spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation shown in the drawings. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptors used in the text may also be interpreted accordingly. It should be noted that in this article, some connection methods, such as "fixed connection, fixed installation" refer to, but are not limited to, the fixing of two parts such as welding, screw and nut fixing, gluing, riveting, interference fit, etc. between two parts. For those skilled in the art, the specific meanings of the above terms in this application can be understood based on specific circumstances.

[0030] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given 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, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0031] Implementation example Figure 1-Figure 11 As shown, an extrusion die for controlling the presence or absence of rubber material comprises: a clamping mechanism, a fixing mechanism, a switching mechanism, and a waste material discharging mechanism.

[0032] In an optional embodiment of the present invention, in addition to the same parts as the previous embodiment, the switching mechanism includes: 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.

[0033] The sleeve 17 is installed at the predetermined installation position of the Y-shaped plate 12 by welding; one end of the push rod 18 is fixedly installed at the predetermined installation position of the Y-shaped plate 12 by a fastener; the other end of the push rod 18 is fastened and installed at the specified 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 opening is provided on the outer wall. When the material opening provided on the outer wall of the feed pipe 5 is aligned with the feed channel 103, the feed pipe 5 feeds rubber into the feed channel 103. When the material opening provided on the outer wall of the feed pipe 5 is separated from the feed channel 103, the rubber no longer enters the feed channel 103.

[0034] In an optional embodiment of the present invention, in addition to the same parts as the previous embodiment, Figure 6 , Figure 7 As shown, the mold mounting frame 1 includes: a card slot 101, a slide hole 102, a feed channel 103, a gas rod slideway 104, and a mold slot 105; The card slot 101 is arranged at the corner of the mold mounting frame 1; the slide hole 102 is arranged in the middle position of the mold mounting frame 1, and a plurality of gas rod slideways 104 are arranged around the slide hole 102, and a feed pipe 5 is slidably installed in the slide hole 102; a plurality of mold grooves 105 are arranged on the mold mounting frame 1; the number of the mold grooves 105 is the same as the number of the gas rod slideways 104, and they correspond one to one; the feed channel 103 connects the slide hole 102 and the mold groove 105; the feed channel 103 is used to transport rubber.

[0035] In an optional embodiment of the present invention, in addition to the same parts as the previous embodiment, Fig. 9 , Fig.10 As shown, the single mold 2 includes: mold body I 201, mold body II 202, heat insulation board 203, cooling board 204, vent hole 205, feed hole 206, mold core 207; A cavity is provided in the mold body I 201; the heat insulation board 203 separates the mold body II 202 from the cooling board 204, and a plurality of vents 205 are provided on the cooling board 204; the vents 205 are used to allow air to pass into the cooling board 204 to cool the molded plastic product, so as to prevent the plastic product after high-temperature molding from deforming after leaving the mold; the feed hole 206 is provided on the mold body I 201, connecting 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 board 203, and the cooling board 204; a gap is provided between the mold core 207 and the mold body II 202, the heat insulation board 203, and the cooling board 204, and the rubber material is squeezed out from the gap to form a specified shape.

[0036] In an optional embodiment of the present invention, in addition to the same parts as the previous embodiment, Figure 1 As 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 flows from the feed channel 103 into the feed hole 206 and enters the cavity of the mold body Ⅰ201.

[0037] In an optional embodiment of the present invention, in addition to the same parts as the previous embodiment, Fig.11 As shown, the fixing mechanism includes: 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 on the fixing plate 3 by welding; the predetermined installation position; the connecting sleeve 19 is installed at the predetermined installation position of the fixing plate 3 by welding; the feed pipe 5 is slidably installed in the slide groove provided in the middle of the triangular block 4; the triangular block 4 is rotatably connected to the mold mounting frame 1.

[0038] In an optional embodiment of the present invention, in addition to the same parts as the previous embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Fig.11 As shown, the clamping mechanism includes: a clamping spring 6, a clamping rod 7, an electric push rod Ⅰ8, a sliding rod 9, a sliding bar Ⅰ10, an electric push rod Ⅱ11, and a sliding bar Ⅱ20; 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, which is convenient for maintaining the stability of the equipment during the production of plastic products and reducing the amount of defective products; the slide bar Ⅱ20 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 Ⅰ8 is fixedly installed in the slide groove provided in the middle of the clamping rod 7; the inner rod of the electric push rod Ⅰ8 is fixedly connected to the slide bar 9; the slide bar Ⅰ10 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 Ⅱ11 is fixedly installed on the Y-shaped plate 12, and the inner rod of the electric push rod Ⅱ11 is fixedly connected to the slide bar Ⅰ10; the electric push rod Ⅱ11 pushes the slide bar Ⅰ10 to slide in the groove of the Y-shaped plate 12, driving the slide bar 9 to move; the slide bar 9 drives the clamping rod 7 to move, and the clamping rod 7 drives the slide bar Ⅱ20 to slide in the slide groove of the fixed plate 3.

[0039] In an optional embodiment of the present invention, in addition to the same parts as the previous embodiment, Figure 1 , Figure 8 As shown, the waste discharge mechanism includes: an air pump 13, an air pipe 14, and a vent 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 the hole provided in the pressure plate 15; the ventilation rod 16 is slidably installed in the air rod slide 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; the outer wall of the ventilation rod 16 is provided with an air hole, and the end face of the ventilation rod 16 is in contact with the pressure plate 15; the pressure plate 15 pushes the ventilation rod 16 to move into the feed channel 103, and when the air hole provided on the outer wall of the ventilation rod 16 enters the feed channel 103, the air pump 13 introduces gas into the feed channel 103 through the air pipe 14 and the ventilation rod 16.

[0040] In an optional embodiment of the present invention, in addition to the same parts as the previous embodiment, Figure 1 As shown, there are multiple single molds 2, and the size and shape of the mold core 207 in each single mold 2 are different, and are used to produce different plastic products.

[0041] In an optional embodiment of the present invention, in addition to the same parts as the previous embodiment, Figure 8 As shown, a groove is provided on the pressing plate 15, and the groove is aligned with one of the vent rods 16, and an air pipe 14 is connected in the groove; the air pipe 14 allows gas to be passed into one of the vent rods 16 to discharge the residual rubber material in one of the single molds 2.

[0042] Working principle: When the device is needed, the connecting sleeve 19 is connected to the discharge port of the extruder; the fused rubber in the extruder enters the connecting sleeve 19, then enters the feed pipe 5, passes through the channel inside the feed pipe 5, enters the feed channel 103, then enters the single mold 2, and passes through the shaping of the single mold 2 to be discharged from the device; When it is necessary to produce products of different shapes, the electric push rod Ⅰ8 pulls the slide bar 9 to slide in the slide groove provided in the middle of the clamping rod 7, and then drives the Y-shaped plate 12 to move, and the Y-shaped plate 12 drives the sleeve 17 to slide in the slide hole 102, and the Y-shaped plate 12 also drives the push rod 18 to move, and the push rod 18 pushes the feed pipe 5 to move, and separates the material port provided on the outer wall of the feed pipe 5 from the feed channel 103; the sleeve 17 drives the pressure plate 15 to move, and the pressure plate 15 presses the ventilation rod 16 to move into the feed channel 103, when the air hole provided on the outer wall of the ventilation rod 16 enters 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 material in the single mold 2; After the residual rubber 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 slide bar 9 to move; the slide bar 9 drives the clamping rod 7 to move, and the clamping rod 7 drives the slide bar II 20 to slide in the slide groove of the fixed plate 3, so that the clamping rod 7 is separated from the clamping groove 101. At this time, the mold mounting frame 1 is rotated around the triangular block 4, so that the other single mold 2 is rotated to the specified position. At this time, the electric push rod II 11 pulls the slide bar I 10 to drive the clamping rod 7 to move to the position of the clamping groove 101, and multiple clamping rods 7 are clamped into multiple clamping grooves 1. 01, the mold mounting frame 1 is fixed, and then the electric push rod Ⅰ8 pushes the slide 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, and then the rubber flows from the feed channel 103 into the rotated single mold 2 to produce another type of product; at the same time, the pressure plate 15 moves, and the ventilation rod 16 moves in the opposite direction under the action of the spring and returns to the original position, and then blocks the gas rod slideway 104, so that the rubber cannot flow out of the gas rod slideway 104; Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and the scope of the 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 at a predetermined installation position of the Y-shaped plate (12) by welding; one end of the push rod (18) is fixedly mounted at 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 a bolt; 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.

2. An extrusion die for controlling the presence or absence of rubber material according to claim 1, characterized in that: 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 in the middle 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 a feed channel (103) connects the sliding hole (102) and the mold groove (105).

3. 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).

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

5. The extrusion die for controlling the presence or absence of rubber material according to claim 1, characterized in that: 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 designated position by bolts; the triangular block (4) is mounted on the fixing plate (3) by welding; the predetermined installation position; the connecting sleeve (19) is mounted at the predetermined installation position of the fixing plate (3) by welding; a feed pipe (5) is slidably mounted in a slide groove provided in the middle of the triangular block (4); and the triangular block (4) is rotatably connected to the mold mounting frame (1).

6. The extrusion die for controlling the presence or absence of rubber material according to claim 1, characterized in that: 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).

7. An 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).

8. The extrusion die for controlling the presence or absence of rubber material according to claim 3, 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.

9. An 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 an air pipe (14) is connected to the groove.

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