A mold for producing container sealing strips and its extrusion process

Abstract

The present invention relates to a mold for producing container sealing strips and an extrusion process thereof, comprising a base, wherein support plates are arranged on both sides of the top of the base; an injection molding pipe is fixedly connected to the upper end surface of the support plate, and one end of the injection molding pipe is meshed with an extrusion mold through threaded cooperation, and a discharge port is opened in the middle of the extrusion mold. The beneficial effects of the present invention are as follows: the mold for producing container sealing strips reduces the internal space of an output groove through the design of a movable block and a limit block on a cleaning mechanism, and the output groove can be divided into two sections for cleaning by pushing a cleaning plate and a movable block, so that the output groove can be better cleaned, and there is no need to manually clean the inside of the output groove, thereby reducing the difficulty of work and the workload, and there is no need to worry about the solidified plastic liquid attached to the injection molding pipe, and no resistance will be generated to the plastic liquid being transported, thereby improving the uniformity of the extruded plastic liquid and improving the quality of the rubber sealing strip.

Description

Technical Field

[0001] The invention relates to the technical field of molds, and in particular to a mold for producing container sealing strips and an extrusion process thereof. Background Art

[0002] In production and processing, extrusion processing is a method with a relatively wide range of applications. It can be used for the processing of plastic parts, rubber parts and metal parts. Extrusion processing uses an extruder and various extruder heads to achieve extrusion molding of various products. In today's increasingly large automobile market, the production and processing demand for automobile parts is huge. For example, automobile sealing strips, although they are very small parts, their quality is directly related to the sealing of the car door, and their usage is relatively large.

[0003] In the prior art, after the extrusion mold is completed, some molten plastic liquid will remain in the injection molding pipe, which needs to be manually cleaned frequently. If the cleaning is improper, the injection molding pipe will be adhered to solidified plastic liquid, thereby increasing the difficulty of the cleaning work and the workload. Moreover, in the next extrusion, it will cause resistance to the plastic liquid in transportation, making the extruded rubber sealing strip uneven, and also pollute the quality of the new plastic liquid, so that the quality of the extruded rubber sealing strip is reduced.

[0004] In order to solve the above problems, the present invention proposes a mold for producing a container sealing strip and an extrusion process thereof. Summary of the invention

[0005] (1) Technical issues to be solved

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, meet practical needs, and provide a mold for producing container sealing strips and an extrusion process thereof to solve the above technical problems.

[0007] (2) Technical solution

[0008] In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is:

[0009] A mold for producing container sealing strips comprises a base, support plates are arranged on both sides of the top of the base; an injection pipe is fixedly connected to the upper end surface of the support plate, one end of the injection pipe is meshed with an extrusion mold through threaded cooperation, and a discharge port is opened in the middle of the extrusion mold; a molten material bin is connected to the outer side of one end of the injection pipe; a cleaning mechanism is arranged inside the injection pipe; and a discharge mechanism is arranged at one end of the injection pipe.

[0010] Furthermore, the cleaning mechanism includes a support frame fixedly supported on one end face of the injection molding pipe, a hydraulic cylinder is fixedly connected to one side of the support frame, a transmission rod is connected to the output end of the hydraulic cylinder, one end of the transmission rod is fixedly connected to a cleaning disk, a storage shell is fixedly connected to one side of the cleaning disk, and the outer ring surface of the cleaning disk is in contact with a conveying groove opened on the injection molding pipe, and a movable block is fixedly connected to one side of the cleaning disk, a limit block is provided on the upper part of one end of the conveying groove, and a discharge outlet is opened inside one side of the limit block.

[0011] Furthermore, the outer side surface of the movable block abuts against the injection pipe, and the upper end surface of one end of the movable block overlaps with the lower end surface of the limit block, and one side surface of the cleaning disk abuts against one side surface of the limit block.

[0012] Furthermore, after the storage shell is started, the inner surface of the storage shell is opposite to the lower end of the guide hole connected to the molten material bin.

[0013] Furthermore, the discharge mechanism includes a first transmission plate fixedly connected to one end of the transmission rod, a first rack is connected to one side of the first transmission plate, the first rack is meshed with a gear, the gear is connected to a fixed plate through a first fixed rod, the upper end of the fixed plate is fixedly connected to the lower surface of the injection pipe, and the gear is meshed with a second rack, one side end of the second rack is fixedly connected to a second transmission plate, a conveying plate is provided on one side of the second transmission plate, one side end of the conveying plate is connected to a fixed block, and the first transmission assembly and the second transmission assembly are provided on both sides of the fixed block.

[0014] Furthermore, the first transmission assembly includes a pressure plate fixedly connected to one side of the fixed block, and one side of the pressure plate is provided with an inclined surface and a horizontal surface, the horizontal surface is in contact with a swing rod, the upper end surface of the swing rod is fixedly connected to the swing plate, and the upper part of one side surface of the swing plate is provided with a pressure surface, the pressure surface is connected to a bearing plate through a spring body, and one side of the bearing plate is fixedly connected to a support rod, the support rod is connected to one end of the swing rod through a second fixed rod, and the upper end of the swing plate is connected to a sliding plate through a third fixed rod, and the sliding plate is slidably matched with a sliding groove, which is opened at one end of the limit block, wherein the sliding groove is communicated with the discharge port, and the second transmission assembly has the same structure as the first transmission assembly.

[0015] Furthermore, a guide rod is fixedly connected to one side of the second transmission plate, and the guide rod is slidably connected to a guide block, and one end of the guide rod is slidably connected to a sliding hole on the guide block, and the upper end of the guide block is fixedly connected to the lower surface of the injection pipe.

[0016] A method for using a mold for producing container sealing strips, the specific method steps are as follows:

[0017] S1. Injection molding: The plastic in the melt bin is injected into the conveying trough at a certain temperature.

[0018] S2, first cleaning: the movable block and the limit block on the cleaning mechanism are overlapped, wherein the movable block gradually moves into one end of the conveying trough, and during the movement of the movable block, the residual plastic liquid at the bottom of the conveying trough can be pushed outward;

[0019] S3, second stage cleaning: through the second transmission assembly and the first transmission assembly on the discharge mechanism, the sliding plate can slide outward inside the sliding groove to gradually open the discharge port. At the same time, the cleaning disk gradually moves toward the direction of the limit block. During the movement of the cleaning disk, the residual plastic liquid can be pushed to the port of the discharge port.

[0020] Beneficial effects:

[0021] In the present invention, the movable block and the limit block are arranged to be divided into a first cleaning slot and a second cleaning slot, and further, the conveying slot can be divided into two spaces for cleaning, so that the conveying slot can be better cleaned without manual cleaning of the inside of the conveying slot, thereby reducing the difficulty of work and the workload. By using the movable block and the limit block for cleaning, there is no need to worry about the solidified plastic liquid being attached to the injection molding pipe. At the same time, in the next extrusion, no resistance will be generated to the plastic liquid being conveyed, thereby effectively improving the uniformity of the extruded plastic liquid molding and preventing the quality of the new plastic liquid from being polluted. Further, the quality of the rubber sealing strip is improved.

[0022] In the present invention, after the cleaning plate passes through the guide hole, the storage shell will immediately face the lower end of the guide hole, and can always face the lower end of the guide hole, so that the fallen plastic liquid can fall into the storage shell, thereby preventing the residual plastic liquid from adhering to the conveying trough.

[0023] In the present invention, through the original working state of the movable block and the limit block, the first cleaning groove and the second cleaning groove are communicated, and the molten plastic liquid enters the first cleaning groove and the second cleaning groove through the transportation of the molten material bin. Since the setting of the movable block and the limit block reduces the space in the conveying groove, the power of conveying the molten plastic is improved, thereby avoiding the quality or appearance of the rubber sealing strip being unqualified due to the slow transportation of the molten plastic, thereby improving the qualified rate of the finished product and the productivity.

[0024] In the present invention, in some specific cases, such as when the melted plastic liquid in the second cleaning tank generates an air wall, which reduces the flow rate of the melted plastic liquid and further affects the quality of the extruded product, the hydraulic cylinder can be started first to make the sliding plate slide outward in the sliding tank, so that the discharge port opens a small opening, and the air wall is discharged outward from the discharge port through the squeezing of the cleaning disk until the melted plastic liquid flows into the discharge port. The sliding plate can be returned to its original position and continue to be sealed to the melted plastic, effectively solving the problem of the air wall, allowing the flow rate of the melted plastic liquid to continue to remain normal, avoiding a large amount of waste, and improving the qualified rate of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of an embodiment of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the cleaning disk of the present invention;

[0027] Figure 3 It is a schematic structural diagram of the limit block of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the pressure plate of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the guide block of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the sliding plate of the present invention;

[0031] Figure 7 It is a partial enlarged view of the discharge port of the present invention.

[0032] The reference numerals are as follows:

[0033] 1-base, 11-support plate, 12-injection pipe, 121-conveying trough, 122-guide hole, 13-extrusion die, 14-melt bin, 2-cleaning mechanism, 21-support frame, 22-hydraulic cylinder, 23-transmission rod, 24-cleaning plate, 241-storage shell, 25-movable block, 26-limiting block, 261-discharge port, 3-discharge mechanism, 31-first transmission plate, 32-first rack, 33-gear, 331-fixed plate, 3 4-second rack, 35-second transmission plate, 351-guide rod, 352-guide block, 36-conveying plate, 361-fixed block, 37-first transmission assembly, 371-pressure plate, 372-inclined surface, 373-horizontal surface, 38-swing rod, 381-swing plate, 3811-pressure surface, 382-spring body, 383-bearing plate, 384-support rod, 385-sliding plate, 386-sliding groove, 39-second transmission assembly. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-7 The present invention is further described with examples:

[0035] A mold for producing container sealing strips comprises a base 1, wherein support plates 11 are arranged on both sides of the top of the base 1; an injection pipe 12 is fixedly connected to the upper end surface of the support plate 11, and an extrusion mold 13 is meshed with one end of the injection pipe 12 through threaded cooperation, and a discharge port 131 is opened in the middle of the extrusion mold 13; a molten material bin 14 is connected to the outer side of one end of the injection pipe 12; a cleaning mechanism 2 is arranged inside the injection pipe 12; and a discharge mechanism 3 is arranged at one end of the injection pipe 12.

[0036] In this embodiment, the cleaning mechanism 2 includes a support frame 21 fixedly supported on one end face of the injection molding pipe 12, a hydraulic cylinder 22 is fixedly connected to one side of the support frame 21, a transmission rod 23 is connected to the output end of the hydraulic cylinder 22, a cleaning disk 24 is fixedly connected to one end of the transmission rod 23, a storage shell 241 is fixedly connected to one side of the cleaning disk 24, and the outer ring surface of the cleaning disk 24 is in contact with the conveying groove 121 opened on the injection molding pipe 12, and a movable block 25 is fixedly connected to one side of the cleaning disk 24, a limit block 26 is provided on the upper part of one end of the conveying groove 121, and a discharge port 261 is opened inside one side of the limit block 26. Start the hydraulic cylinder 22, and the transmission rod 23 is forced to move to one side, and the cleaning plate 24 is forced to slide to one side in the conveying groove 121. The cleaning plate 24 gradually moves to one side along the conveying groove 121, wherein the cleaning plate 24 first passes through the lower end of the guide hole 122. In order to avoid residual plastic liquid in the guide hole 122, after the cleaning plate 24 passes through the guide hole 122, the storage shell 241 will immediately face the lower end of the guide hole 122, and can always face the lower end of the guide hole 122, so that the fallen plastic liquid can fall into the storage shell 241. As the cleaning disk 24 continues to move, the upper end surface of the movable block 25 is inserted into the lower end surface of the limit block 26, forming a first cleaning groove and a second cleaning groove. The first cleaning groove and the second cleaning groove are connected, and the molten plastic liquid enters the first cleaning groove and the second cleaning groove under the transportation of the molten material bin 14. Since the setting of the movable block 25 and the limit block 26 reduces the space in the conveying groove 121, the power of conveying the molten plastic is improved, thereby avoiding the quality or appearance of the rubber sealing strip being unqualified due to the slow transportation of the molten plastic, thereby improving the qualified rate of the finished product and the productivity.

[0037] In this embodiment, the outer side surface of the movable block 25 contacts the injection pipe 12, and the upper end surface of one end of the movable block 25 overlaps the lower end surface of the limit block 26, and the side surface of the cleaning plate 24 contacts the side surface of the limit block 26. When the cleaning plate 24 continues to move, the upper end surface of the movable block 25 is inserted into the lower end surface of the limit block 26, and a first cleaning groove and a second cleaning groove are formed therein. The first cleaning groove gradually overlaps with the limit block 26 in the movable block 25, so that the end surface of the movable block 25 pushes the plastic liquid in the first cleaning groove to the port of the conveying groove 121 until it is pushed to the port of the conveying groove 121. Through the arrangement of the first cleaning groove and the second cleaning groove, the conveying groove 121 can be divided into two sections for cleaning, and the conveying groove 121 can be better cleaned without manual cleaning of the inside of the conveying groove 121. Through the setting of the movable block 25 and the limit block 26, it can be divided into a first cleaning groove and a second cleaning groove, and further, it can be divided into two spaces for cleaning in the conveying groove 121, so that the conveying groove 121 can be better cleaned, and there is no need to manually clean the inside of the conveying groove 121, thereby reducing the difficulty of work and reducing the workload. By using the cleaning of the movable block 25 and the limit block 26, there is no need to worry about the solidified plastic liquid adhering to the injection molding pipe. At the same time, in the next extrusion, it will not cause resistance to the plastic liquid in transit, effectively improving the uniformity of the extruded plastic liquid molding, and preventing the quality of the new plastic liquid from being contaminated, thereby improving the quality of the rubber sealing strip.

[0038] In this embodiment, after the storage shell 241 is started, the inner surface of the storage shell 241 is directly opposite to the lower end of the guide hole 122 communicating with the melt bin 14 , thereby preventing the residual plastic liquid from adhering to the conveying groove 121 .

[0039] In this embodiment, the discharge mechanism 3 includes a first transmission plate 31 fixedly connected to one end of the transmission rod 23, a first rack 32 is connected to one side of the first transmission plate 31, the first rack 32 is meshed with a gear 33, the gear 33 is connected to a fixed plate 331 through a first fixed rod, the upper end of the fixed plate 331 is fixedly connected to the lower surface of the injection pipe 12, and the gear 33 is meshed with a second rack 34, one side end of the second rack 34 is fixedly connected to a second transmission plate 35, a conveying plate 36 is provided on one side of the second transmission plate 35, and a fixed block 36 is connected to one side end of the conveying plate 36, and a first transmission assembly 37 and a second transmission assembly 39 are provided on both sides of the fixed block 361. When the cleaning disk 24 moves, at the same time, the first transmission plate 31 is driven to move to one side through the transmission rod 23, so that the first rack 32 is forced to move to one side and mesh with the gear 33, so that the gear 33 rotates counterclockwise on the outside of the first fixed rod, and its gear 33 is forced to mesh with the second rack 34, and the second rack 34 moves to the other side in the opposite direction to the movement of the first rack 32. The second rack 34 simultaneously drives the second transmission plate 35 to one side, and the second transmission plate 35 is driven by the conveying plate 36, the fixed block 361, and the pressure plate 371 to move to one side. Through the arrangement of the first rack 32, the gear 33, and the second rack 34, the sliding plate 385 can be made to slide outward, thereby opening the discharge port 261 to discharge the residual plastic liquid outward.

[0040] The first transmission assembly 37 comprises a pressure plate 371 fixedly connected to one side of the fixed block 361, and one side of the pressure plate 371 is provided with an inclined surface 372 and a horizontal surface 373, and the horizontal surface 373 contacts the swing rod 38, and the upper end surface of the swing rod 38 is fixedly connected to the swing plate 381, and the upper part of one side surface of the swing plate 381 is provided with a pressure surface 3811, and the pressure surface 3811 is connected to a bearing plate 383 through a spring body 382, ​​and one side of the bearing plate 383 is fixedly connected to a support rod 384, and the support rod (384) is connected to one end of the swing rod (38) through a second fixed rod, and the upper end of the swing plate 381 is connected to a sliding plate 385 through a third fixed rod, and the sliding plate 385 is slidably matched with a sliding groove 386, and the sliding groove 386 is opened at one end of the limit block 26, wherein the sliding groove 386 is communicated with the discharge port 261, and the second transmission assembly 39 has the same structure as the first transmission assembly 37.As the second transmission plate 35 continues to drive the conveying plate 36, the fixed block 361, and the pressing plate 371 to move to one side, the inclined surface 372 on the pressing plate 371 gradually presses against the outer side of the swing rod 38 (before the original operation, the horizontal surface 373 on the pressing plate 371 presses against the outer side of the swing rod 38). After the swing rod 38 is subjected to force, the swing plate 381 rotates on the outer side of the second fixed rod, wherein the upper end of the swing plate 381 expands outward, the lower end of the swing plate 381 retracts inward, and the upper end of the swing plate 381 is pressed against the spring body 382 through the pressing surface 3811, and the swing plate 381 is pushed toward the outer side of the second fixed rod. The outer drive drives the sliding plate 385 to make the sliding plate 385 slide outward inside the sliding groove 386. The inclined surface 372 continues to press against the outer side of the swing rod 38, so that the sliding plate 385 is fully opened in the sliding groove 386 and the discharge port 261, until one side of the cleaning disk 24 presses against one side of the limit block 26, and the hydraulic cylinder stops driving. The residual plastic liquid in the second cleaning groove will be pushed to the side of the residual plastic liquid through the one side of the cleaning disk 24. In the residual plastic liquid pushed by the cleaning disk 24, more plastic liquid will accumulate until the cleaning disk 24 pushes the plastic liquid to the end of the sliding groove 386, and the second cleaning The space of the cleaning tank is gradually reduced, so that the plastic liquid is pushed toward the end of the sliding groove 386, and the pushed plastic liquid flows into the discharge port 261, and the plastic liquid flowing in is discharged outwardly through the discharge port 261. Through the arrangement of the sliding plate 385 and the sliding groove 386, when cleaning the second cleaning tank, the sliding plate 385 is opened to allow the residual plastic liquid in the second cleaning tank to be discharged outwardly. When cleaning is not required, the sliding plate 385 will return to the original position through the elastic force of the spring body 382 to prevent the melted plastic liquid from flowing into the discharge port 261 during transportation. In some specific cases, such as the melted plastic liquid in the second cleaning tank The plastic liquid produces an air wall, which reduces the flow of the molten plastic liquid, thereby affecting the quality of the extruded product. The hydraulic cylinder 22 can be started first to make the sliding plate 385 slide outward in the sliding groove 386, so that the discharge port 261 opens a small opening, and the air wall is discharged outward from the discharge port 261 through the squeezing of the cleaning plate 24 until the molten plastic liquid flows into the discharge port 261. The sliding plate 385 can be returned to its original position and continue to be sealed to the molten plastic, effectively solving the problem of the air wall, allowing the flow of the molten plastic liquid to continue to remain normal, avoiding a large amount of waste, and improving the qualified rate of the finished product.

[0041] In this embodiment, a guide rod 351 is fixedly connected to one side of the second transmission plate 35, and the guide rod 351 is slidably connected to a guide block 352, and one end of the guide rod 351 is slidably connected to a sliding hole on the guide block 352, and the upper end of the guide block 352 is fixedly connected to the lower surface of the injection pipe 12. In order to ensure the stability of the conveying plate 36, when the second transmission plate 35 moves, the guide rod 351 slides to one side in the sliding hole on the guide block 352, so that the conveying plate 36 can move smoothly to one side.

[0042] A method for using a mold for producing container sealing strips, the specific method steps are as follows:

[0043] S1, injection molding: the plastic in the melt bin 14 is injected into the conveying trough 121 at a certain temperature;

[0044] S2, first cleaning: the movable block 25 and the limit block 26 on the cleaning mechanism 2 are overlapped, wherein the movable block 25 gradually moves toward one end of the conveying trough 121. During the movement of the movable block 25, the residual plastic liquid at the bottom of the conveying trough 121 can be pushed outward, which is conducive to better cleaning in the conveying trough 121, without manual cleaning of the inside of the conveying trough 121, thereby reducing the workload;

[0045] S3, second stage cleaning: the second transmission assembly 39 and the first transmission assembly 37 on the discharge mechanism 3 can make the sliding plate 385 slide outward inside the sliding groove 386, so that the discharge port 261 is gradually opened. At the same time, the cleaning plate 24 gradually moves toward the direction of the limit block 26. During the movement of the cleaning plate 24, the residual plastic liquid can be pushed to the port of the discharge port 261, which is beneficial for the next extrusion of the finished product. It will not cause resistance to the plastic liquid in transit, effectively prevent the extruded rubber sealing strip from being uneven, and also prevent the quality of the new plastic liquid from being polluted, thereby improving the quality of the rubber sealing strip.

[0046] The specific working principle of the present invention includes the following process:

[0047] After the injection molding process, when cleaning is required, the extrusion mold 13 is separated from the injection molding pipe 12 through the threaded extrusion mold 13, and the hydraulic cylinder 22 can be started to make the cleaning plate 24 gradually move to one side along the conveying groove 121. After the cleaning plate 24 passes through the guide hole 122, the storage shell 241 will immediately face the lower end of the guide hole 122, and can always face the lower end of the guide hole 122. When the cleaning plate 24 continues to move, the upper end surface of the movable block 25 is inserted into the lower end surface of the limit block 26, which forms a first cleaning groove and a second cleaning groove. The first cleaning groove gradually overlaps with the limit block 26 when the movable block 25 is moved. The end surface of the movable block 25 pushes the plastic liquid in the first cleaning groove to the port of the conveying groove 121 until it is pushed to the port of the conveying groove 121, and the pushing work is stopped. Secondly, through the second transmission assembly 39 and the first transmission assembly 37 on the discharge mechanism 3, the second transmission plate 35 is driven by force to The conveying plate 36, the fixed block 361, and the pressing plate 371 move to one side. After the swing rod 38 is subjected to force, the upper end of the swing plate 381 is expanded outward, and the lower end of the swing plate 381 is retracted inward and pressed on the spring body 382, ​​so that the sliding plate 385 slides outward inside the sliding groove 386, so that the sliding plate 385 is fully opened in the sliding groove 386 and the discharge port 261, until one side of the cleaning disk 24 is pressed against one side of the limit block 26, and the hydraulic cylinder is stopped from continuing to drive. The residual plastic liquid in the second cleaning groove will be pushed to the residual plastic liquid by the side surface of the cleaning disk 24. In the residual plastic liquid pushed by the cleaning disk 24, more plastic liquid will accumulate until the cleaning disk 24 pushes the plastic liquid to the end of the sliding groove 386, and the space of the second cleaning groove gradually decreases, so that the plastic liquid is pushed toward the end of the sliding groove 386, and the pushed plastic liquid flows into the discharge port 261, and then the inflowing plastic liquid is discharged outward through the discharge port 261.

[0048] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A mold for producing container sealing strips, comprising a base (1), characterized in that: Support plates (11) are arranged on both sides of the top of the base (1); an injection molding pipe (12) is fixedly connected to the upper end surface of the support plate (11); one end of the injection molding pipe (12) is engaged with an extrusion mold (13) through threaded engagement; a discharge port (131) is provided in the middle of the extrusion mold (13); the outer side of one end of the injection molding pipe (12) is connected to a molten material bin (14); a cleaning mechanism (2) is arranged inside the injection molding pipe (12); a discharge mechanism (3) is arranged at one end of the injection molding pipe (12); the cleaning mechanism (2) comprises a fixed support A support frame (21) is supported on one end surface of the injection molding pipe (12), a side surface of the support frame (21) is fixedly connected to a hydraulic cylinder (22), an output end of the hydraulic cylinder (22) is connected to a transmission rod (23), one end of the transmission rod (23) is fixedly connected to a cleaning disk (24), one side surface of the cleaning disk (24) is fixedly connected to a storage shell (241), and an outer ring surface of the cleaning disk (24) abuts against a conveying groove (121) provided on the injection molding pipe (12), and a movable block (25) is fixedly connected to one side surface of the cleaning disk (24), and an upper portion of one end of the conveying groove (121) is fixedly connected to the cleaning disk (24). A limit block (26) is provided, and a discharge port (261) is provided inside one side of the limit block (26); the outer side surface of the movable block (25) abuts against the injection pipe (12), and the upper end surface of one end of the movable block (25) overlaps with the lower end surface of the limit block (26), and one side surface of the cleaning disk (24) abuts against one side surface of the limit block (26); the discharge mechanism (3) includes a first transmission plate (31) fixedly connected to one end of the transmission rod (23), one side of the first transmission plate (31) is connected to a first rack (32), and the first rack (32) is meshed with a gear ( 33), the gear (33) is connected to a fixing plate (331) via a first fixing rod, the upper end of the fixing plate (331) is fixedly connected to the lower surface of the injection molding pipe (12), and the gear (33) is meshed with a second rack (34), one side end of the second rack (34) is fixedly connected to a second transmission plate (35), one side of the second transmission plate (35) is provided with a conveying plate (36), one side end of the conveying plate (36) is connected to a fixing block (361), and both sides of the fixing block (361) are provided with a first transmission assembly (37) and a second transmission assembly (39);The first transmission assembly (37) comprises a pressure plate (371) fixedly connected to one side of the fixed block (361); a side surface of the pressure plate (371) is provided with an inclined surface (372) and a horizontal surface (373); the horizontal surface (373) abuts against a swing rod (38); an upper end surface of the swing rod (38) is fixedly connected to a swing plate (381); a pressure surface (3811) is provided on an upper side of one side surface of the swing plate (381); the pressure surface (3811) is connected to a bearing plate (383) via a spring body (382); the bearing plate (383) is fixedly connected to a support rod (384) on one side, the support rod (384) is connected to one end of the swing rod (38) through a second fixed rod, the upper end of the swing plate (381) is connected to a sliding plate (385) through a third fixed rod, the sliding plate (385) is slidably matched with a sliding groove (386), the sliding groove (386) is provided at one end of the limit block (26), wherein the inside of the sliding groove (386) is communicated with the inside of the discharge port (261), and the second transmission assembly (39) has the same structure as the first transmission assembly (37). ; 2. A mold for producing container sealing strips according to claim 1, characterized in that: After the storage shell (241) is started, the inner surface of the storage shell (241) is directly opposite to the lower end of the guide hole (122) communicating with the molten material bin (14).

3. A mold for producing container sealing strips as claimed in claim 2, characterized in that: A guide rod (351) is fixedly connected to one side of the second transmission plate (35), and the guide rod (351) is slidably connected to a guide block (352), and one end of the guide rod (351) is slidably connected to a sliding hole on the guide block (352), and the upper end of the guide block (352) is fixedly connected to the lower surface of the injection pipe (12).

4. A mold injection molding process using the mold for producing container sealing strips according to any one of claims 1 to 3, characterized in that: The following steps are involved: S1, injection molding: the plastic in the melt bin (14) is injected into the conveying trough (121) at a certain temperature. S2, first cleaning stage: the movable block (25) and the limit block (26) on the cleaning mechanism (2) are overlapped, wherein the movable block (25) gradually moves toward one end of the conveying trough (121), and during the movement of the movable block (25), the residual plastic liquid at the bottom of the conveying trough (121) can be pushed outward; S3, second cleaning stage: the second transmission assembly (39) and the first transmission assembly (37) on the discharge mechanism (3) can be used to allow the sliding plate (385) to slide outwardly inside the sliding groove (386), so that the discharge outlet (261) is gradually opened. At the same time, the cleaning plate (24) gradually moves in the direction of the limit block (26). During the movement of the cleaning plate (24), the residual plastic liquid can be pushed toward the port of the discharge outlet (261).

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