A processing mold for producing automobile sealing strips

Abstract

The invention discloses a processing die for producing automobile sealing strips, which belongs to the field of sealing strip extrusion dies. The processing die for producing automobile sealing strips can actively adjust the extrusion pressure of a molten sealing strip material extruded by an extrusion die head mechanism through a flow fluctuation regulating valve, so that the molten sealing strip material passes through a molding channel and is molded at a constant extrusion pressure, thereby reducing the probability of defects in the dimensional accuracy, appearance quality, physical properties, etc. of the sealing strip. At the same time, when the extrusion pressure fluctuates, the molten sealing strip material will stop extruding into the molding channel, and no unqualified sealing strip will be extruded from the outside of the molding channel temporarily, so that the sealing strip does not need to be cut during the period, thereby reducing the waste rate of the extruded raw materials, avoiding discontinuous extrusion of the sealing strip due to cutting, and avoiding affecting the production efficiency.

Description

Technical Field

[0001] The invention relates to the field of sealing strip extrusion dies, and more specifically to a processing die for producing automobile sealing strips. Background Art

[0002] In the field of automobile manufacturing, automobile sealing strips play a vital role in sealing, sound insulation, shock absorption, etc. In its production process, the extruder is a commonly used equipment, which is used to extrude the molten material through the mold to form automobile sealing strips.

[0003] However, in the actual working process of the extruder, due to the influence of various factors, such as differences in material uniformity, changes in the stability of equipment operation, temperature fluctuations, etc., it is inevitable that the extrusion pressure will fluctuate. This fluctuation in extrusion pressure will directly lead to defects in the dimensional accuracy, appearance quality, and physical properties of the automotive sealing strip. For example, pressure fluctuations may cause the sealing strip to have uneven thickness and uneven surface, and even cause internal structural defects in severe cases, affecting its sealing performance and service life; and if pressure fluctuations occur during the extrusion process, in order to prevent unqualified sealing strips from entering the market, the sealing strips extruded by the pressure fluctuations can only be cut off, which not only increases the waste rate of extruded raw materials, but also directly leads to the inconsistency of the sealing strip extrusion at the cut point, affecting production efficiency;

[0004] In order to solve this problem, there is an urgent need for a processing mold for the production of automotive sealing strips that can effectively cope with extrusion pressure fluctuations during the extrusion process of the extruder, so as to ensure the stability of automotive sealing strip production and product quality. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a processing mold for the production of automobile sealing strips, which can be directly installed between the sealing strip forming die and the extrusion die mechanism through the flow fluctuation regulating valve, and can actively adjust the extrusion pressure of the molten sealing strip material extruded by the extrusion die mechanism, so that it can only be squeezed into the inside of the sealing strip forming die at a constant pressure after passing through the flow fluctuation regulating valve, so that the molten sealing strip material passes through the molding channel and is molded at a constant extrusion pressure, thereby reducing the probability of defects in the dimensional accuracy, appearance quality and physical properties of the sealing strip; at the same time, when the extrusion pressure fluctuates, the molten sealing strip material will stop squeezing into the molding channel, and no unqualified sealing strip will be extruded from the outside of the molding channel temporarily, so that the sealing strip does not need to be cut during the period, thereby reducing the waste rate of the extruded raw materials, avoiding discontinuous extrusion of the sealing strip due to cutting, and avoiding affecting the production efficiency.

[0007] 2. Technical solution

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] A processing die for producing automobile sealing strips, comprising a sealing strip forming die head, a flow fluctuation regulating valve and an extrusion die head mechanism, wherein the flow fluctuation regulating valve comprises two valve shells of the same structure, and the two valve shells are arranged symmetrically in opposite directions to each other, the two valve shells are fixedly installed by screws, a rotor valve core is arranged between the two valve shells, a rotor cavity is provided inside the valve shells, rotating shaft ends are fixedly welded at the center positions on both sides of the rotor valve core, the rotor valve core is sleeved inside the rotor cavities of the two valve shells, and the two rotating shaft ends are respectively rotatably connected to the holes corresponding to the inside of the rotor cavity, and a flow channel is provided inside the rotor valve core;

[0010] The two sides of the outer wall of the valve housing located on both sides of the rotor cavity are respectively fixedly welded with mounting flange 1 and mounting flange 2 through connecting end 1 and connecting end 2, a feed channel and a discharge channel are opened inside the connecting end 1 and the connecting end 2, and the feed channel and the discharge channel are connected through the flow channel, an overflow channel is opened on the valve housing located at the top of the discharge channel, an overflow pipe is fixedly connected to the top of the overflow channel, the bottom of the overflow channel is connected with the inside of the rotor cavity, and a sealing point is arranged on the valve housing located at the bottom of the discharge channel;

[0011] The bottom of the valve shell is fixedly connected to an adjusting box body, the top of the adjusting box body is provided with an avoidance opening, the avoidance opening is communicated with the interior of the rotor cavity, the bottom of the rotor valve core is fixedly connected to a support plate, the bottom of the support plate extends to the interior of the adjusting box body through the avoidance opening, and one side of the bottom of the support plate is fixedly connected to a clamping end, one side of the outer wall of the adjusting box body is provided with an internal threaded hole, the internal threaded hole is threadedly connected with an adjusting bolt, the end of the adjusting bolt located inside the adjusting box body is provided with an inner concave hole, a supporting spring is sleeved inside the inner concave hole, and the other end of the support spring is sleeved with the outer side of the clamping end.

[0012] Furthermore, the inner wall diameter of the rotor cavity is equal to the outer wall diameter of the rotor valve core, and a sealing ring is sleeved on the outer wall of the rotor valve core. The inner wall diameters of the flow channel, the discharge channel and the overflow channel are all equal, and the inner wall diameter of the feed channel is larger than the inner wall diameter of the flow channel.

[0013] Furthermore, the flow channel includes a feed port and a discharge port respectively connected to the feed channel and the discharge channel, and a turning force-adding section is also provided on the flow channel. A pointer is fixedly installed on one of the rotating shaft ends located on the outside of the valve housing by screws.

[0014] Furthermore, the mounting flanges 2 on the two valve housings are fixedly mounted to one side of the sealing strip forming die by bolts, and a forming channel is opened at the center position inside the sealing strip forming die, and the forming channel corresponds to the position of the discharge channel.

[0015] Furthermore, the extrusion die head mechanism includes a mouth die, a sleeve die, a diverter die and a seat die. The mounting flanges on the two valve housings, the seat die, the diverter die and the sleeve die are fixedly installed by extended threaded nails, and the sleeve die and the mouth die are fixedly installed by a plurality of edge screws.

[0016] Furthermore, a conical cavity is provided inside the base mold, and the conical tip of the conical cavity corresponds to the position of the feed channel. A mounting seat is fixedly welded inside the diverter mold through a plurality of slices, and a conical head is fixedly welded on one side of the mounting seat, and the conical head extends into the conical cavity. A guide column is sleeved inside the sleeve mold, and one end of the guide column is connected to a plurality of sockets on the other side of the mounting seat through a plurality of insertion rods, and the other end of the guide column extends to the opening of the die, and the other end of the guide column is fixedly installed at the center position of the other side of the mounting seat by extending the threaded nail, and a feed gap is formed between the outer wall of the guide column and the opening of the die.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) In this solution, the flow fluctuation regulating valve can be directly installed between the sealing strip molding die and the extrusion die mechanism, and can actively adjust the extrusion pressure of the molten sealing strip material extruded by the extrusion die mechanism, so that after passing through the flow fluctuation regulating valve, it can only be squeezed into the sealing strip molding die at a constant pressure, so that the molten sealing strip material passes through the molding channel at a constant extrusion pressure and is molded, thereby reducing the probability of defects in the dimensional accuracy, appearance quality and physical properties of the sealing strip;

[0020] (2) In this scheme, when the extrusion pressure fluctuates, the molten sealing strip material will stop being extruded into the molding channel, and no unqualified sealing strip will be extruded from the outside of the molding channel temporarily. Therefore, there is no need to cut the sealing strip during this period, which reduces the waste rate of extruded raw materials and avoids discontinuous extrusion of the sealing strip due to cutting, thereby avoiding affecting production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the split structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the split structure of the flow fluctuation regulating valve of the present invention;

[0024] Figure 4 It is a schematic diagram of the valve housing structure of the present invention;

[0025] Figure 5 For the present invention Figure 4 A schematic diagram of the structure of the enlarged part of the middle area;

[0026] Figure 6 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0027] Figure 7 It is a schematic diagram of the cross-sectional structure of the rotor valve core of the present invention;

[0028] Figure 8 It is a schematic diagram of the disassembled structure of the extrusion die head mechanism of the present invention;

[0029] Fig. 9 It is a schematic diagram of the cross-sectional structure of the extrusion die head mechanism of the present invention.

[0030] Description of the numbers in the figure:

[0031] 1. Sealing strip forming die head; 101. Forming channel;

[0032] 2. Flow fluctuation regulating valve; 3. Valve housing; 301. Overflow channel; 302. Overflow pipe; 303. Sealing point; 4. Rotor cavity; 5. Connection end 1; 501. Feed channel; 6. Mounting flange 1; 7. Connection end 2; 701. Discharge channel; 8. Mounting flange 2; 9. Adjustment box; 901. Avoidance opening; 10. Rotor valve core; 11. Shaft end; 12. Flow channel; 1201. Feed inlet; 1202. Discharge outlet; 1203. Turning force section; 13. Support sheet; 1301. Clamping end; 14. Adjustment bolt; 15. Support spring; 16. Pointer;

[0033] 17. Extrusion die head mechanism; 18. Mouth die; 19. Socket die; 20. Diverter die; 2001. Slice; 2002. Mounting seat; 2003. Conical head; 21. Seat die; 2101. Conical cavity; 22. Extended threaded pin; 23. Edge screw; 24. Guide column; 2401. Insert rod; 25. Extended threaded pin; 26. Feed gap. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the specification of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0035] Example 1

[0036] See also Figure 1-Figure 7 A processing die for producing automobile sealing strips, comprising a sealing strip forming die head 1, a flow fluctuation regulating valve 2 and an extrusion die head mechanism 17, wherein the flow fluctuation regulating valve 2 comprises two valve shells 3 of the same structure, and the two valve shells 3 are arranged symmetrically in opposite directions to each other, the two valve shells 3 are fixedly installed by screws, a rotor valve core 10 is arranged between the two valve shells 3, a rotor cavity 4 is opened inside the valve shells 3, a rotating shaft end 11 is fixedly welded at the center position on both sides of the rotor valve core 10, the rotor valve core 10 is sleeved inside the rotor cavity 4 of the two valve shells 3, and the two rotating shaft ends 11 are respectively rotatably connected to the holes inside the corresponding rotor cavity 4, and a flow channel 12 is opened inside the rotor valve core 10;

[0037] The outer walls of the valve housing 3 located on both sides of the rotor cavity 4 are respectively fixedly welded with mounting flanges 1 6 and 2 8 through connecting ends 1 5 and 2 7, and a feed channel 501 and a discharge channel 701 are provided inside the connecting ends 1 5 and 2 7, and the feed channel 501 and the discharge channel 701 are connected through a flow channel 12, an overflow channel 301 is provided on the valve housing 3 located at the top of the discharge channel 701, an overflow pipe 302 is fixedly connected to the top of the overflow channel 301, and the bottom of the overflow channel 301 is connected to the inside of the rotor cavity 4, and a sealing point 303 is provided on the valve housing 3 located at the bottom of the discharge channel 701;

[0038] The bottom of the valve housing 3 is fixedly connected with an adjusting box body 9, the top of the adjusting box body 9 is provided with an avoidance opening 901, the avoidance opening 901 is communicated with the inside of the rotor cavity 4, the bottom of the rotor valve core 10 is fixedly connected with a support sheet 13, the bottom of the support sheet 13 extends to the inside of the adjusting box body 9 through the avoidance opening 901, and one side of the bottom of the support sheet 13 is fixedly connected with a clamping end 1301, one side of the outer wall of the adjusting box body 9 is provided with an internal threaded hole, the internal threaded hole is threadedly connected with an adjusting bolt 14, the end of the adjusting bolt 14 located inside the adjusting box body 9 is provided with an inner concave hole, the inner concave hole is sleeved with a supporting spring 15, and the other end of the supporting spring 15 is sleeved with the outer side of the clamping end 1301;

[0039] The inner diameter of the rotor cavity 4 is equal to the outer diameter of the rotor valve core 10, and a sealing ring is sleeved on the outer wall of the rotor valve core 10. The inner diameters of the flow channel 12, the discharge channel 701 and the overflow channel 301 are all equal, and the inner diameter of the feed channel 501 is greater than the inner diameter of the flow channel 12.

[0040] The flow channel 12 includes a feed port 1201 and a discharge port 1202 respectively connected to the feed channel 501 and the discharge channel 701. The flow channel 12 is also provided with a turning force-adding section 1203. A pointer 16 is fixedly mounted on one of the rotating shaft ends 11 located outside the valve housing 3 by screws.

[0041] The mounting flanges 8 on the two valve housings 3 are fixedly mounted to one side of the sealing strip forming die 1 by bolts. A forming channel 101 is provided at the center of the sealing strip forming die 1 , and the forming channel 101 corresponds to the position of the discharge channel 701 .

[0042] (I) The regulating principle of the flow fluctuation regulating valve of the processing mold for the production of this type of automobile sealing strip is:

[0043] First, the sealing strip forming die 1, the flow fluctuation regulating valve 2 and the extrusion die mechanism 17 are installed to form a complete processing mold for the production of the automobile sealing strip, and then the mouth die 18 of the extrusion die mechanism 17 is installed with the discharge port of the extruder by using a clamp (the specific structure and principle of the extruder are already known public technology, so it will not be described in detail here), so that the molten sealing strip material extruded from the discharge port of the extruder can be squeezed into the extrusion die mechanism 17, and enter the feed channel 501 of the flow fluctuation regulating valve 2 through the tapered cavity 2101;

[0044] Then, the adjusting bolt 14 of the flow fluctuation regulating valve 2 is turned to extend and retract inside the regulating box body 9, and the supporting force of the supporting spring 15 on the bottom of the supporting sheet 13 is adjusted, so that the supporting force of the supporting spring 15 on the bottom of the supporting sheet 13 and the extrusion force set by the molten sealing strip material squeezed into the feeding channel 501 by the conical cavity 2101 are equal. At this time, the adjustment work is completed, and the outlet 1202 of the rotor valve core 10 is deflected downward to contact the sealing point 303 (that is, the initial state of the rotor valve core 10 before the flow fluctuation regulating valve 2 works);

[0045] At this time, the extruder can be started and the sealing strip can be extruded and molded through the processing mold for the production of automobile sealing strips. When the molten sealing strip material extruded from the discharge port of the extruder is constantly extruded into the extrusion die head mechanism 17 with a preset extrusion force, the molten sealing strip material can be extruded into the feed channel 501 with a constant extrusion force, and then the molten sealing strip material can enter the rotor valve core 10 through the feed port 1201 of the flow channel 12. When the molten sealing strip material reaches the turning force section 1203, it will impact the inner wall of the turning force section 1203, causing the rotor valve core 10 to rotate, and aligning the discharge port 1202 of the flow channel 12 with the discharge channel 701. At this time, the molten sealing strip material can enter the discharge channel 701 through the discharge port 1202, and be squeezed into the molding channel 101 of the sealing strip molding die head 1, thereby realizing continuous sealing strip molding and extrusion;

[0046] During the extrusion process, if the extrusion force of the molten sealing strip material extruded from the discharge port of the extruder suddenly becomes smaller, the molten sealing strip material will instantly squeeze into the feed channel 501 with a smaller extrusion force. At this time, the impact force at the turning force-adding section 1203 of the flow channel 12 becomes smaller, and the force at the bottom of the support sheet 13 is insufficient to support the supporting force of the support spring 15. Therefore, at this time, the discharge port 1202 of the rotor valve core 10 instantly deflects downward and contacts the sealing point 303, preventing the molten sealing strip material in the flow channel 12 from continuing to squeeze into the molding channel 101, thereby avoiding unqualified extruded sealing strips. When the molten sealing strip material extruded from the discharge port of the extruder recovers the preset extrusion force and squeezes into the extrusion die head mechanism 17 at a constant rate, the discharge port 1202 can be realigned with the discharge channel 701, thereby continuing to extrude the sealing strip through the molding channel 101.

[0047] If the extrusion force of the molten sealing strip material extruded from the discharge port of the extruder suddenly increases, the molten sealing strip material will instantly squeeze into the feed channel 501 with a larger extrusion force. At this time, the impact force at the turning force-adding section 1203 of the flow channel 12 becomes larger, and the force at the bottom of the support sheet 13 is greater than the supporting force on the support spring 15. Therefore, at this time, the discharge port 1202 of the rotor valve core 10 will instantly deflect upward and contact the overflow channel 301, preventing the molten sealing strip material inside the flow channel 12 from continuing to squeeze into the molding channel 101, thereby avoiding unqualified extruded sealing strips. At the same time, the molten sealing strip material can overflow through the overflow pipe 302, and when the molten sealing strip material extruded from the discharge port of the extruder later recovers the preset extrusion force and squeezes into the extrusion die head mechanism 17 constantly, the discharge port 1202 can be realigned with the discharge channel 701, thereby continuing to extrude the molding sealing strip through the molding channel 101.

[0048] The structural design that the inner wall diameters of the flow channel 12, the discharge channel 701 and the overflow channel 301 are all equal, and the inner wall diameter of the feed channel 501 is larger than the inner wall diameter of the flow channel 12, can make the opening of the feed channel 501 larger, so that the feed port 1201 can be connected with the inside of the feed channel 501 when rotating with the rotor valve core 10, so that the molten sealing strip material can smoothly enter the flow channel 12;

[0049] The opening of the avoidance opening 901 can provide a redundant avoidance space for the support sheet 13 to follow the rotation of the rotor valve core 10, and can also limit the deflection distance of the support sheet 13, so as to avoid the deflection distance of the support sheet 13 being too large, and the discharge port 1202 being difficult to align with the sealing point 303 or the overflow channel 301 through the connection of the rotor valve core 10;

[0050] The setting of the pointer 16 can intuitively understand the position of the discharge port 1202 from the outside of the valve housing 3, which is convenient for judging whether the discharge port 1202 is aligned with the discharge channel 701.

[0051] Example 2

[0052] In view of the above embodiment 1, for further description, refer to Figure 1 , Figure 8 as well as Fig. 9 The extrusion die head mechanism 17 includes a mouth die 18, a sleeve die 19, a diverter die 20 and a seat die 21. The mounting flanges 16 on the two valve housings 3, the seat die 21, the diverter die 20 and the sleeve die 19 are fixedly installed by extended threaded nails 22, and the sleeve die 19 and the mouth die 18 are fixedly installed by a plurality of edge screws 23.

[0053] A conical cavity 2101 is provided inside the seat mold 21, and the conical tip of the conical cavity 2101 corresponds to the position of the feed channel 501. A mounting seat 2002 is fixedly welded to the inside of the diverter mold 20 through a plurality of slices 2001. A conical head 2003 is fixedly welded to one side of the mounting seat 2002, and the conical head 2003 extends to the inside of the conical cavity 2101. A guide column 24 is sleeved inside the sleeve mold 19, and one end of the guide column 24 is plugged into a plurality of sockets on the other side of the mounting seat 2002 through a plurality of plug rods 2401, and the other end of the guide column 24 extends to the opening of the mouth mold 18, and the other end of the guide column 24 is fixedly installed at the center position of the other side of the mounting seat 2002 by extending the threaded nail 25, and a feed gap 26 is formed between the outer wall of the guide column 24 and the opening of the mouth mold 18.

[0054] (II) The extrusion principle of the extrusion die head mechanism of the processing die for the production of this type of automotive sealing strip is:

[0055] First, the molten sealing strip material extruded from the discharge port of the extruder is squeezed into the inlet mold 18 through the feed gap 26, and then reaches the inside of the diverter mold 20 along the outer wall of the guide column 24 and the inner wall of the sleeve mold 19, and then is cut and separated by a number of slices 2001 and passes through the inside of the diverter mold 20, and is squeezed out from the outer wall of the conical head 2003 and enters the inside of the conical cavity 2101 of the seat mold 21. At this time, the molten sealing strip material can enter the feed channel 501 of the flow fluctuation regulating valve 2 through the cone tip of the conical cavity 2101.

[0056] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A processing die for producing automobile sealing strips, comprising a sealing strip forming die head (1), a flow fluctuation regulating valve (2) and an extrusion die head mechanism (17), wherein the flow fluctuation regulating valve (2) is installed between the sealing strip forming die head (1) and the extrusion die head mechanism (17), and characterized in that: The flow fluctuation regulating valve (2) comprises two valve housings (3) of identical structure, and the two valve housings (3) are arranged symmetrically in opposite directions to each other, the two valve housings (3) are fixedly mounted by screws, a rotor valve core (10) is arranged between the two valve housings (3), a rotor cavity (4) is provided inside the valve housing (3), a rotating shaft end (11) is fixedly welded at the center position on both sides of the rotor valve core (10), the rotor valve core (10) is sleeved inside the rotor cavity (4) of the two valve housings (3), and the two rotating shaft ends (11) are rotatably connected to the corresponding holes inside the rotor cavity (4), and a flow channel (12) is provided inside the rotor valve core (10); The outer wall of the valve housing (3) located on one side of the rotor chamber (4) is fixedly welded with a mounting flange 1 (6) via a connecting end 1 (5), and the outer wall of the valve housing (3) located on the other side of the rotor chamber (4) is fixedly welded with a mounting flange 2 (8) via a connecting end 2 (7). A feed channel (501) is provided inside the connecting end 1 (5), and a discharge channel (701) is provided inside the connecting end 2 (7), and the feed channel (501) and the discharge channel (701) are connected via the flow channel (12). An overflow channel (301) is provided on the valve housing (3) at the top of the discharge channel (701), and an overflow pipe (302) is fixedly connected to the top of the overflow channel (301). The bottom of the overflow channel (301) is connected to the inside of the rotor chamber (4), and a sealing point (303) is provided on the valve housing (3) at the bottom of the discharge channel (701); The bottom of the valve housing (3) is fixedly connected to an adjusting box body (9), the top of the adjusting box body (9) is provided with an avoidance opening (901), the avoidance opening (901) is communicated with the inside of the rotor cavity (4), the bottom of the rotor valve core (10) is fixedly connected to a support sheet (13), the bottom of the support sheet (13) extends into the inside of the adjusting box body (9) through the avoidance opening (901), and one side of the bottom of the support sheet (13) is fixedly connected to a clamping end (1301), one side of the outer wall of the adjusting box body (9) is provided with an internal threaded hole, the inside of the internal threaded hole is threadedly connected to an adjusting bolt (14), an inner concave hole is provided at the end of the adjusting bolt (14) located inside the adjusting box body (9), a supporting spring (15) is sleeved inside the inner concave hole, and the other end of the supporting spring (15) is sleeved with the outside of the clamping end (1301); The inner wall diameter of the rotor cavity (4) is equal to the outer wall diameter of the rotor valve core (10), and the outer wall of the rotor valve core (10) is sleeved with a sealing ring, the inner wall diameters of the flow channel (12), the discharge channel (701) and the overflow channel (301) are all equal, and the inner wall diameter of the feed channel (501) is greater than the inner wall diameter of the flow channel (12); The flow channel (12) comprises a feed port (1201) and a discharge port (1202) respectively connected to the feed channel (501) and the discharge channel (701); a turning force-adding section (1203) is also provided on the flow channel (12); and a pointer (16) is fixedly mounted on one of the rotating shaft ends (11) located outside the valve housing (3) by means of screws; The sealing strip material in a molten state enters the interior of the rotor valve core (10) through the feed port (1201) of the flow channel (12); when the sealing strip material in a molten state reaches the turning force-adding section (1203), it impacts the inner wall of the turning force-adding section (1203), causing the rotor valve core (10) to rotate, aligning the discharge port (1202) of the flow channel (12) with the discharge channel (701); at this time, the sealing strip material in a molten state enters the interior of the discharge channel (701) through the discharge port (1202); The second mounting flanges (8) on the two valve housings (3) are fixedly mounted to one side of the sealing strip forming die (1) by means of bolts. A forming channel (101) is provided at the center of the interior of the sealing strip forming die (1), and the forming channel (101) corresponds to the position of the discharge channel (701).

2. The processing mold for producing automobile sealing strips according to claim 1, characterized in that: The extrusion die head mechanism (17) comprises a mouth die (18), a sleeve die (19), a flow divider die (20) and a seat die (21); the mounting flanges (6) on the two valve housings (3), the seat die (21), the flow divider die (20) and the sleeve die (19) are fixedly mounted via extended threaded pins (22); the sleeve die (19) and the mouth die (18) are fixedly mounted via a plurality of edge screws (23).

3. The processing mold for producing automobile sealing strips according to claim 2, characterized in that: A conical cavity (2101) is provided inside the seat mold (21), and the conical tip of the conical cavity (2101) corresponds to the position of the feed channel (501). A mounting seat (2002) is fixedly welded inside the flow splitter mold (20) through a plurality of slices (2001). A conical head (2003) is fixedly welded on one side of the mounting seat (2002), and the conical head (2003) extends into the conical cavity (2101). A flow guide is sleeved inside the sleeve mold (19). The guide column (24) has one end connected to a plurality of plug holes on the other side of the mounting seat (2002) through a plurality of plug rods (2401), the other end of the guide column (24) extends to the opening of the die (18), and the other end of the guide column (24) is fixedly mounted at the center position of the other side of the mounting seat (2002) through an extended threaded through nail (25), and a feeding gap (26) is formed between the outer wall of the guide column (24) and the opening of the die (18).

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