Waste recovery type sealing strip extrusion die

Abstract

The invention discloses a waste recovery type sealing strip extrusion die which comprises an upper die, a feeding port is formed in the middle of the upper die, a cavity is formed in a lower die, a dismounting and mounting structure is mounted in the cavity, the dismounting and mounting structure comprises a rotating shaft mounted in the cavity, and a second gear is mounted on the outer side of the rotating shaft. The plug pin is installed at the bottom end of the upper die, the plug pin at the bottom end of the upper die can be clamped into the inserting groove in the top end of the lower die, the upper die and the lower die can be fixed together by inserting the plug pin into the inserting groove, the buckle and the baffle are connected through the spring with high elasticity, and the buckle can slide; the inclined face at the bottom end of the bolt can push away the buckle, after the bolt is completely inserted, the elasticity of the spring can drive the buckle to be clamped into the bolt, the buckle can fix the bolt, the bolt can be better prevented from falling off, and the upper mold and the lower mold can be fixed more stably.

Description

Technical Field

[0001] This invention relates to the field of sealing strip processing technology, and in particular to a waste material recycling type sealing strip extrusion mold. Background Technology

[0002] A sealing strip is a strip or rod-shaped product used to seal items. Its main function is to prevent media leakage or intrusion, while also providing functions such as shock absorption, sound insulation, heat insulation, and dust prevention. It is widely used in automobiles, doors and windows, cabinets, construction, and other fields. A mold is a variety of molds and tools used in industrial production to obtain the desired product through injection molding, blow molding, extrusion, die casting, forging, smelting, stamping, and other methods. A sealing strip extrusion mold is a special molding tool used to produce rubber products such as automotive sealing strips. It is a mold that shapes rubber material into a specific cross-sectional shape through the extrusion molding process. It is usually installed at the front end of the extruder and uses the change of material physical state to achieve the shape processing.

[0003] To address this, patent publication CN222946163U discloses a composite sealing strip extrusion mold, belonging to the field of sealing strip technology. It includes a mold body, a mounting frame slidably connected to the outside of the mold body, a connecting seat fixed to the front of the mold body, a fixing mechanism installed inside the mold body for fixing the mounting frame, and an injection assembly installed outside the mounting frame for injecting raw materials. The fixing mechanism includes a connecting fixing component installed inside the mold body for fixing the mounting frame, and a reinforcing component installed outside the connecting fixing component for making the connecting fixing component more stable. This composite sealing strip extrusion mold can stably and effectively fix the movable frame, thus making the movable frame more stable and effectively preventing the movable frame from sliding relative to the mold body under the action of other forces, improving the practicality of the composite sealing strip extrusion mold.

[0004] The aforementioned composite sealing strip extrusion mold can stably and effectively fix the movable frame, thereby making the movable frame more stable and effectively preventing the movable frame from sliding relative to the mold body under the action of other forces. This improves the practicality of the composite sealing strip extrusion mold. However, in use, the mold is generally used in combination with an upper mold and a lower mold. After the upper mold and the lower mold are combined, they are usually fixed with bolts. Bolt fixing makes the mold difficult to disassemble and assemble. However, if the mold is only fixed with clips, the fixing efficiency is not high enough, and the mold may fall off during operation. Summary of the Invention

[0005] The purpose of this invention is to provide a waste recycling type sealing strip extrusion mold to solve the problem that existing waste recycling type sealing strip extrusion molds are difficult to disassemble and assemble.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a waste recycling type sealing strip extrusion mold, including an upper mold; The upper mold has a feed inlet at the middle position, a flow divider bridge is installed inside the feed inlet, a flow divider outlet is provided on the outside of the flow divider bridge, and a mold core is installed at the bottom end of the flow divider bridge. The bottom end of the upper mold is equipped with a pin, the bottom end of the upper mold is equipped with a lower mold, the top end of the lower mold is equipped with a groove, and the top end of the lower mold is provided with a slot. The lower mold has a cavity installed inside, and the cavity has a disassembly and assembly structure installed inside. The disassembly and assembly structure includes a rotating shaft installed inside the cavity, and a second gear is installed on the outside of the rotating shaft.

[0007] In use, the upper and lower molds can be disassembled and assembled using the disassembly structure, making it easier to combine and disassemble the upper and lower molds and making them more stable. The material can enter the mold through the inlet and then be diverted through the diversion port to slow down the flow of the material. The mold core and the outlet can then be combined to form a shape. After the material is extruded through the outlet, a sealing strip can be formed.

[0008] Preferably, positioning holes are provided on both sides of the top of the upper mold, and the positioning holes are symmetrically distributed about the central axis of the upper mold, so that the mold can be positioned when it is installed on the extruder.

[0009] Preferably, the bottom end of the lower mold is provided with an outlet, which is T-shaped and can be used to extrude the sealing strip.

[0010] Preferably, a buckle is installed on the outer side of the second gear, and a buckle tooth is provided on one side of the buckle. A spring is installed on one side of the buckle, and a baffle is installed on one side of the spring. A movable plate is installed at one end of the buckle. Movable grooves are provided on both sides and both ends of the lower mold. A rubber pad is installed inside the pin. The buckle can be inserted into the pin to fix the pin.

[0011] Preferably, the inner side of the rubber pad is provided with protrusions, which are arranged at equal intervals on the inner side of the rubber pad, so that the rubber pad can make the buckle more stable.

[0012] Preferably, the outer diameter of the movable plate is smaller than the inner diameter of the movable groove, and the movable plate and the movable groove form a sliding structure, allowing the movable plate to slide inside the movable groove.

[0013] Preferably, the spring is helical in shape, and the spring and the buckle form an elastic connection, and the spring is elastic.

[0014] Preferably, a connecting structure is installed at the top of the disassembly and assembly structure. The connecting structure includes a through hole at the top of the second gear, a fixing block is installed on one side inside the through hole, a connecting rod is installed at the bottom of the upper mold, and a fixing groove is provided on one side of the connecting rod. The connecting structure makes the disassembly and assembly of the upper mold and the lower mold more stable.

[0015] Preferably, the outer diameter of the pin is smaller than the inner diameter of the slot, and the pin and the slot form a locking structure, which facilitates disassembly.

[0016] Preferably, a positioning structure is installed inside the cavity. The positioning structure includes a first gear installed inside the cavity, a positioning rod installed at the top of the first gear, and a rotating rod installed at the top of the positioning rod. A positioning groove is provided at the bottom of the upper mold, and a rotating block is installed at the bottom of the positioning groove. The rotating block has an opening inside. The positioning structure can make the lower mold and the upper mold more stable.

[0017] The advantages of the waste recycling sealing strip extrusion mold provided by the present invention are as follows: during use, the upper mold and the lower mold can be disassembled and assembled through the disassembly and assembly structure, making it more convenient to assemble and disassemble the upper mold and the lower mold; the upper mold and the lower mold can be stably fixed together through the positioning structure, preventing the upper mold and the lower mold from falling off; and the positioning structure can make the upper mold and the lower mold more stable.

[0018] By installing a pin at the bottom of the upper mold, the pin at the bottom of the upper mold can be inserted into the slot at the top of the lower mold. The insertion of the pin into the slot can fix the upper mold and the lower mold together. The buckle and the baffle are connected by a highly elastic spring. The buckle can slide. When the pin is inserted into the slot, the inclined surface at the bottom of the pin can push the buckle open. When the pin is fully inserted, the elasticity of the spring will drive the buckle to be inserted into the pin. The buckle can fix the pin and further prevent the pin from falling off. Furthermore, the connecting rod at the bottom of the upper mold can also be inserted into the lower mold. When the buckle moves backward before being engaged with the pin, the second gear will rotate, causing the through hole to rotate. The rotation of the through hole will cause the fixing block to rotate, so that the fixing block will no longer block the connecting rod. The connecting rod can then be inserted into the through hole. When the connecting rod and the pin are fully engaged, the elasticity of the spring will cause the second gear to rotate and reset. In this way, the fixing block can be engaged into the fixing groove on the connecting rod. The connecting rod can make the upper mold and the lower mold more stable. Furthermore, the rotation of the second gear also drives the rotation of the first gear. The rotation of the first gear can adjust the angle of the top positioning rod. The rotation of the first gear drives the positioning rod to rotate, and the rotation of the positioning rod will adjust the positioning rod to an inclined angle. The positioning rod can be inserted into the opening and the positioning groove. When the first gear resets, the first gear will drive the top positioning rod to rotate. The rotation of the rotating block and the positioning rod will both rotate to a vertical state, and the rotating rod at the top of the positioning rod will be inserted into the positioning groove. In this way, the rotating rod will be at an inclined angle, so that the rotating rod can be misaligned with the opening of the rotating block. The rotating rod can be completely inserted into the positioning groove, which can completely clamp the upper mold and the lower mold. Attached Figure Description

[0019] Figure 1 This is a three-dimensional exploded structure diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the lower mold of the present invention; Figure 4 This is a three-dimensional structural diagram of the lower mold of the present invention; Figure 5 This is a three-dimensional cross-sectional structural diagram of the present invention; Figure 6 This is a three-dimensional structural diagram of the upper mold of the present invention; Figure 7 This is a three-dimensional structural diagram of the lower mold cross-section of the present invention; Figure 8 This is a partial three-dimensional structural diagram of the disassembly and assembly structure of the present invention; Figure 9 This is a partial three-dimensional structural diagram of the positioning structure of the present invention; Figure 10 This is a schematic diagram of the local three-dimensional structure of the positioning structure of the present invention during an explosion; Figure 11 For the present invention Figure 7 Enlarged cross-sectional view of a portion of point A in the middle section; Figure 12 This is a partial three-dimensional structural diagram of the disassembly and assembly structure of the present invention.

[0020] The reference numerals in the diagram are as follows: 1. Upper mold; 2. Lower mold; 3. Groove; 4. Positioning structure; 401. First gear; 402. Positioning rod; 403. Rotating rod; 404. Rotating block; 405. Positioning groove; 406. Opening; 5. Mold core; 6. Inlet; 7. Diverter; 8. Diverter bridge; 9. Assembly / disassembly structure; 901. Second gear; 902. Rotating shaft; 903. Baffle; 904. Spring; 905. Buckle; 906. Moving plate; 907. Gear; 908. Rubber pad; 909. Protrusion; 910. Moving groove; 10. Outlet; 11. Positioning hole; 12. Slot; 13. Pin; 14. Connecting structure; 1401. Connecting rod; 1402. Through hole; 1403. Fixing block; 1404. Fixing groove; 15. Cavity. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-12 One embodiment of the present invention is a waste recycling type sealing strip extrusion mold, which includes an upper mold 1.

[0023] The upper mold 1 has a feed port 6 at the middle position, and positioning holes 11 are provided on both sides of the top of the upper mold 1. The positioning holes 11 are symmetrically distributed about the central axis of the upper mold 1.

[0024] A flow divider bridge 8 is installed inside the feed inlet 6, a flow divider port 7 is provided on the outside of the flow divider bridge 8, and a mold core 5 is installed at the bottom of the flow divider bridge 8.

[0025] A pin 13 is installed at the bottom of the upper mold 1. The outer diameter of the pin 13 is smaller than the inner diameter of the slot 12. The pin 13 and the slot 12 form a locking structure.

[0026] The bottom of the upper mold 1 is fitted with a lower mold 2, and the bottom of the lower mold 2 is provided with an outlet 10, which is T-shaped.

[0027] The top of the lower mold 2 is fitted with a groove 3 and a slot 12.

[0028] The lower mold 2 has a cavity 15 installed inside, and a positioning structure 4 is installed inside the cavity 15. The positioning structure 4 includes a first gear 401 installed inside the cavity 15. The first gear 401 is symmetrically distributed about the central axis of the lower mold 2, and the first gear 401 and the second gear 901 mesh with each other.

[0029] A positioning rod 402 is installed at the top of the first gear 401, and a rotating rod 403 is installed at the top of the positioning rod 402. A positioning groove 405 is provided at the bottom of the upper mold 1, and a rotating block 404 is installed at the bottom of the positioning groove 405. An opening 406 is provided inside the rotating block 404.

[0030] See attached document Figure 7 and attached Figure 9-10 As shown, when the upper mold 1 and the lower mold 2 are engaged, the latch 905 engages, causing the second gear 901 to rotate, which in turn drives the first gear 401, which meshes with the second gear 901, to rotate. The rotation of the first gear 401 adjusts the angle of the top positioning rod 402. Normally, the positioning rod 402 is horizontal, while the opening 406 at the bottom of the rotating block 404 at the bottom of the upper mold 1 and the positioning groove 405 are at an inclined angle. When the latch 905 retracts, the rotation of the second gear 901 drives the first gear 401 to rotate. The rotation of the positioning rod 402 causes the rotating rod 403 at its top to also rotate. This rotation adjusts the positioning rod 402 to an inclined angle, allowing it to engage with the opening 406 and the positioning groove 405. At this point, the latch 905 is engaged with the pin 13. The reset of the second gear 901 resets the first gear 401. After the first gear 401 resets, it rotates the top positioning rod 402. This rotation also causes the rotating block 404 to rotate. The rotation of the rotating block 404 and the positioning rod 402... Positioning rods 402 rotate to a vertical position, and the rotating rod 403 at the top of the positioning rod 402 engages with the positioning groove 405. The positioning groove 405 fixes the rotating rod 403, preventing it from rotating. This causes the rotating rod 403 to be at an angle, thus disaligning it with the opening 406 of the rotating block 404. The rotating rod 403 can then be completely engaged with the positioning groove 405, effectively securing the upper mold 1 and lower mold 2 and preventing them from falling off. When the upper mold 1 and lower mold 2... During disassembly, the movement of the buckle 905 drives the second gear 901 to rotate, the rotation of the second gear 901 drives the first gear 401 to rotate, the rotation of the first gear 401 drives the positioning rod 402 to rotate, and the rotation of the positioning rod 402 drives the rotating block 404 to rotate. After the opening 406 and the positioning rod 402 are rotated to the tilt angle, the rotating rod 403 can be pulled out, allowing the upper mold 1 and the lower mold 2 to be disassembled. Through the multiple fixation of the rotating rod 403, the buckle 905, the pin 13 and the positioning rod 402, the upper mold 1 and the lower mold 2 can be fixed more stably.

[0031] The cavity 15 is equipped with a disassembly and assembly structure 9. The top of the disassembly and assembly structure 9 is equipped with a connecting structure 14. The connecting structure 14 includes a through hole 1402 located at the top of the second gear 901. A fixing block 1403 is installed on one side inside the through hole 1402. A connecting rod 1401 is installed at the bottom of the upper mold 1. A fixing groove 1404 is provided on one side of the connecting rod 1401.

[0032] See attached document Figure 7 and attached Figure 11 As shown, to make the fixation more stable, the connecting rod 1401 at the bottom of the upper mold 1 can also be inserted into the lower mold 2. After the connecting rod 1401 is inserted into the lower mold 2, when the buckle 905 moves backward after engaging the pin 13, the second gear 901 will rotate, causing the through hole 1402 to rotate. The rotation of the through hole 1402 will cause the fixing block 1403 to rotate, so that the fixing block 1403 no longer blocks the connecting rod 1401, and the connecting rod 1401 can be inserted into the through hole 1402. When the connecting rod 1401 and the pin 13 are fully engaged, the elasticity of the spring 904 will drive the second gear 901 to rotate. 01. Rotate to reset. In this way, the fixing block 1403 can be inserted into the fixing groove 1404 on the connecting rod 1401, fixing the connecting rod 1401 onto the second gear 901. The connecting rod 1401 can make the upper mold 1 and the lower mold 2 more stable and prevent the upper mold 1 and the lower mold 2 from falling off. The material can enter the mold through the feed port 6 and then be diverted through the diversion port 7. The flow rate of the material can be slowed down by diverting the flow. Then the mold core 5 and the outlet 10 can be combined to form a shape. After the material is extruded through the outlet 10, a sealing strip can be formed.

[0033] The disassembly and assembly structure 9 includes a rotating shaft 902 installed inside the cavity 15. A second gear 901 is installed on the outside of the rotating shaft 902. A buckle 905 is installed on the outside of the second gear 901. A locking tooth 907 is provided on one side of the buckle 905. A spring 904 is installed on one side of the buckle 905. The spring 904 is spiral in shape. The spring 904 and the buckle 905 form an elastic connection.

[0034] A baffle 903 is installed on one side of the spring 904, and a movable plate 906 is installed on one end of the buckle 905. The outer diameter of the movable plate 906 is smaller than the inner diameter of the movable groove 910. The movable plate 906 and the movable groove 910 form a sliding structure.

[0035] The lower mold 2 is provided with moving grooves 910 on both sides and both ends. A rubber pad 908 is installed inside the pin 13. The inner side of the rubber pad 908 is provided with protrusions 909, which are arranged at equal intervals on the inner side of the rubber pad 908.

[0036] See attached document Figure 5 and attached Figure 7-8As shown, the upper mold 1 and the lower mold 2 can be combined together. The pin 13 at the bottom of the upper mold 1 and the slot 12 of the lower mold 2 form a locking structure. The pin 13 on the upper mold 1 can be inserted into the slot 12. The tapered slope at the bottom of the pin 13 can be inserted into the tapered groove 3 at the bottom of the slot 12. Due to the tapered shape of the pin 13, the pin 13 can be fully inserted into the slot 12 through the guidance of the tapered groove 3, resulting in a better locking effect and preventing the pin 13 from slipping out. In case of detachment, the latch 905 and the baffle 903 are connected by a highly elastic spring 904. The latch 905 can slide. When the pin 13 is inserted into the slot 12, the inclined surface at the bottom of the pin 13 can push the latch 905 open. When the pin 13 is fully inserted, the elasticity of the spring 904 will cause the latch 905 to engage inside the pin 13. The latch 905 can fix the pin 13, further preventing it from falling out. A rubber pad is provided inside the slot of the pin 13. 908. The rubber pad 908 can completely wrap around the buckle 905. The protrusion 909 on the rubber pad 908 can be inserted into the groove on the buckle 905 to prevent the buckle 905 from falling off. When it is necessary to disassemble the lower mold 2 and the upper mold 1, the moving plate 906 can slide inside the moving groove 910. The moving plate 906 can be pressed to move the buckle 905 so that the buckle 905 is no longer stuck in the pin 13. The second gear 901 can be rotated through the rotating shaft 902. When one buckle 905 moves, the locking teeth 907 of the buckle 905 and the second gear 901 mesh with each other. When the buckle 905 moves, it will also drive the second gear 901 to rotate. The rotation of the second gear 901 will drive the other three buckles 905 to move. When the three buckles 905 move at the same time, they will no longer be stuck in the pin 13, so that the upper mold 1 and the lower mold 2 can be disassembled. Since multiple springs 904 are linked, the elastic combination of multiple springs 904 can also prevent the buckle 905 from falling off.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A waste recycling type sealing strip extrusion mold, comprising an upper mold (1); Its features are: The upper mold (1) is provided with a feed port (6) at the middle position. A flow divider bridge (8) is installed inside the feed port (6). A flow divider port (7) is provided on the outside of the flow divider bridge (8). A mold core (5) is installed at the bottom end of the flow divider bridge (8). The bottom end of the upper mold (1) is equipped with a pin (13), the bottom end of the upper mold (1) is equipped with a lower mold (2), and the top end of the lower mold (2) is equipped with a groove (3), and the top end of the lower mold (2) is provided with a slot (12). The lower mold (2) has a cavity (15) installed inside, and a disassembly structure (9) is installed inside the cavity (15). The disassembly structure (9) includes a rotating shaft (902) installed inside the cavity (15), and a second gear (901) is installed on the outside of the rotating shaft (902).

2. The waste recycling type sealing strip extrusion die according to claim 1, characterized in that: The upper mold (1) has positioning holes (11) on both sides of its top end. The positioning holes (11) are symmetrically distributed about the central axis of the upper mold (1).

3. The waste recycling type sealing strip extrusion die according to claim 1, characterized in that: The bottom end of the lower mold (2) is provided with an outlet (10), and the outlet (10) is in the shape of a "T".

4. The waste recycling type sealing strip extrusion die according to claim 1, characterized in that: A buckle (905) is installed on the outer side of the second gear (901), and a locking tooth (907) is provided on one side of the buckle (905). A spring (904) is installed on one side of the buckle (905), and a baffle (903) is installed on one side of the spring (904). A movable plate (906) is installed at one end of the buckle (905). Movable grooves (910) are provided on both sides and both ends of the lower mold (2). A rubber pad (908) is installed inside the pin (13).

5. The waste recycling type sealing strip extrusion die according to claim 4, characterized in that: The rubber pad (908) has protrusions (909) on its inner side, and the protrusions (909) are arranged at equal intervals on the inner side of the rubber pad (908).

6. The waste recycling type sealing strip extrusion die according to claim 4, characterized in that: The outer diameter of the movable plate (906) is smaller than the inner diameter of the movable groove (910), and the movable plate (906) and the movable groove (910) constitute a sliding structure.

7. The waste recycling type sealing strip extrusion die according to claim 4, characterized in that: The spring (904) is spiral in shape, and the spring (904) and the buckle (905) form an elastic connection.

8. The waste recycling type sealing strip extrusion die according to claim 1, characterized in that: The top of the disassembly structure (9) is equipped with a connecting structure (14), which includes a through hole (1402) at the top of the second gear (901). A fixing block (1403) is installed on one side inside the through hole (1402). A connecting rod (1401) is installed at the bottom of the upper mold (1), and a fixing groove (1404) is provided on one side of the connecting rod (1401).

9. The waste recycling type sealing strip extrusion die according to claim 1, characterized in that: The outer diameter of the pin (13) is smaller than the inner diameter of the slot (12), and the pin (13) and the slot (12) form a locking structure.

10. The waste recycling type sealing strip extrusion die according to claim 1, characterized in that: The cavity (15) is equipped with a positioning structure (4). The positioning structure (4) includes a first gear (401) installed inside the cavity (15). A positioning rod (402) is installed at the top of the first gear (401), and a rotating rod (403) is installed at the top of the positioning rod (402). A positioning groove (405) is provided at the bottom of the upper mold (1). A rotating block (404) is installed at the bottom of the positioning groove (405), and an opening (406) is provided inside the rotating block (404).

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