Automatic EVA foam raw material smelting and extruding device

Abstract

The invention belongs to the technical field of EVA foamed cotton, and particularly relates to an automatic EVA foamed cotton raw material smelting and extruding device which comprises an extruder body, an extruding channel is formed in one side of the extruder body, and the automatic EVA foamed cotton raw material smelting and extruding device further comprises a filtering device. A forming die is arranged at one end away from the extrusion channel; the filter element is arranged in the filter channel; the replacing device is arranged on the filtering seat; wherein the filter element is detachably arranged on the filter seat through a replacement device. The device has the beneficial effects that impurities possibly entrained in the raw materials are effectively removed by arranging the filtering device, and the impurities are prevented from entering the subsequent processing procedure, so that the adverse effects of the impurities on the performance, appearance and durability of the product are avoided, and the overall quality of the final product is remarkably improved.

Description

Technical Field

[0001] The present application belongs to the technical field of EVA foam cotton, and in particular to an automated EVA foam cotton raw material melting and extrusion device. Background Art

[0002] Foam is used more and more widely, such as making shoes, household appliances, yoga mats, cars, sporting goods, children's puzzle toys, floor mats, fitness equipment, etc.

[0003] The patent with publication number CN118082085B discloses an EVA injection foaming molding method, which belongs to the field of plastic molding technology. A foaming molding machine is used for foaming. The foaming molding machine includes a screw extrusion system and a quantitative extrusion system. The quantitative extrusion system includes a quantitative extrusion reciprocating device, a quantitative extrusion chamber device and an extrusion breaking device. The quantitative extrusion chamber device includes a buffer chamber and a pressurizing chamber. A one-way valve is provided between the buffer chamber and the pressurizing chamber. The quantitative extrusion reciprocating device is slidably arranged along the pressurizing chamber and the buffer chamber. The cross-sectional area of ​​the pressurizing plunger is twice the cross-sectional area of ​​the pushing plunger.

[0004] The above patent adopts a one-way valve for injection molding machines and maintains stable pressure through corresponding settings. However, there is no corresponding filtering structure in actual use, and a large amount of impurities may be carried in the raw materials. If these impurities directly enter the subsequent processes after being processed by the extruder, it will have a serious impact on the quality of the product and needs to be improved. Summary of the invention

[0005] The purpose of this application is to provide an automated EVA foam raw material melting and extrusion device that can solve the above-mentioned problems.

[0006] The purpose of the present application is to provide an automated EVA foam raw material melting and extrusion device, comprising an extruder body, one side of which is provided with an extrusion channel, and a filtering device, the filtering device comprising:

[0007] A filter seat, wherein a filter channel communicating with the extrusion channel is provided inside the filter seat, and a molding die is provided at one end of the filter seat away from the extrusion channel;

[0008] A filter element is disposed in the filter channel;

[0009] A replacement device is arranged on the filter seat;

[0010] The filter element is detachably arranged on the filter seat through a replacement device.

[0011] By adopting the above-mentioned automated EVA foam raw material melting and extrusion device, the impurities that may be entrained in the raw materials are effectively removed by setting a filtering device to prevent these impurities from entering the subsequent processing procedures, thereby avoiding the adverse effects of impurities on product performance, appearance and durability, and significantly improving the overall quality of the final product. At the same time, the detachable design of the filter element makes replacement and maintenance simple and quick, and can quickly respond to changes in different raw materials or production needs, reduce production interruptions and failure rates caused by impurity accumulation, and improve the stability and efficiency of the production line. In addition, by regularly replacing the filter element, the wear and corrosion caused by long-term accumulation of impurities on the inside of the equipment can be avoided, the service life of the equipment can be extended, and the maintenance costs and time costs caused by equipment failures can be reduced. The automated filtering process reduces the need for manual intervention, making the entire melting and extrusion process smoother and more efficient. The pure raw materials also reduce the defective rate in the production process, improve the yield rate, and further improve the overall production efficiency.

[0012] Further, the replacement device includes:

[0013] The storage structure includes a frame and a driver for driving the frame to rotate, and the frame is provided with a plurality of mounting slots for placing the filter element;

[0014] A replacement structure is arranged on one side of the filter seat and is used to replace the filter element on the storage structure, comprising a rotating seat and two rotating disks arranged on the rotating seat, and the filter element cooperates with the rotating disk;

[0015] A storage rack is provided on one side of the replacement structure and is used to store the replacement filter element;

[0016] The frame is arranged on the top of the filter seat, and a through slot for the frame to pass through is arranged on the filter seat.

[0017] The frame is provided with mounting slots for carrying multiple filter elements, which is convenient for replacing the filter elements. When replacing, the new filter element is placed on the storage rack in advance for quick grabbing, and the driver is in standby state, waiting for the replacement instruction. When the filter element needs to be replaced, the driver starts, drives the frame to rotate to the specified position, and aligns the filter element to be replaced with the replacement structure. First, grab the new filter element from the storage rack to a rotating disk, and grab the used filter element to another rotating disk. Then the rotating seat rotates 180°, aligns the rotating disk with the new filter element with the mounting slot of the storage structure, and aligns the rotating disk with the old filter element with the storage rack. Move again, place the new filter element from the rotating disk into the mounting slot of the storage structure, and place the old filter element from the rotating disk to the storage rack. The driver stops rotating, and the replacement operation is completed. At this time, the filter element in the storage structure has been updated to a new filter element, and the old filter element has been properly collected on the storage rack. In this process, each rotating disk is connected to a cylinder for driving the rotating disk to move.

[0018] Further: the replacement structure includes:

[0019] A mounting ring is arranged on the edge of the filter element, and a plurality of matching pieces are provided on the mounting ring, and openings are provided on both sides of the inner wall of each matching piece;

[0020] A matching rod is arranged on the rotating disk, and one end of the matching rod is provided with an elastic tooth, and the elastic tooth matches with the opening;

[0021] The guide frame comprises a movable portion, a fixed portion and a first guide rod connecting the movable portion and the fixed portion, the first guide rod passes through the fixed portion and is slidably connected to the fixed portion, and a first spring is arranged between the first guide rod and the fixed portion;

[0022] The movable frame is provided with an electric fastener, and the movable frame can be fixed to the matching rod through the electric fastener. Further, the replacement structure also includes:

[0023] Positioning grooves are arranged on the mounting grooves, and the number of the positioning grooves is the same as the number of the matching rods;

[0024] The receiving frame comprises a collar spaced apart from the positioning groove and a second guide rod connecting the collar and the positioning groove, wherein the collar is slidably connected to the positioning groove via the second guide rod;

[0025] A second spring is disposed on the second guide rod and is located between the collar and the receiving frame;

[0026] A protruding rod is arranged on the mounting ring and is adapted to the sleeve ring;

[0027] Wherein, a movable groove for the second guide rod to move and connected with the positioning groove is arranged on the installation groove, and the elastic coefficient of the first spring is smaller than that of the second spring.

[0028] In the present application, there are two situations respectively. One of them is when the filter element needs to be replaced. At this time, there is no filter element on the rotating disk, and the filter element needs to be taken out from the installation slot or the storage rack. At this time, the electric fastening rod works to fix the movable part and the matching rod. The rotating disk drives the matching rod box filter element to move under the action of the cylinder. As the matching rod gradually approaches, the movable part contacts the ring. Since the movable part is fixed, the ring is compressed under the action of the second spring. At this time, the convex rod cooperates with the ring and enters the positioning groove through the ring. At the same time, the matching rod gradually enters the matching piece, and as the matching rod gradually goes deeper, the elastic teeth are compressed into the matching rod, and finally pop out and engage with the opening. At this time, the rotating disk is connected to the filter element, and the rotating disk takes the filter element out of the installation slot under the action of the cylinder.

[0029] Another situation is that there is a filter element on the rotating disk, and the filter element needs to be placed in the installation groove or storage rack. At this time, the rotating disk is controlled by the cylinder to drive the filter element close to the installation groove. As it approaches, the convex rod passes through the ring and enters the positioning groove. As the distance between the filter element and the installation groove gradually approaches, the movable part on the matching rod contacts the ring, and because the elastic coefficient of the first spring is smaller than that of the second spring, the movable part is affected by the thrust and moves toward the end away from the filter screen. At the same time, the ring will gradually squeeze the elastic teeth on the matching rod, and finally separate the elastic teeth from the opening, thereby completing the separation between the filter element and the rotating disk, achieving the separation between the rotating disk and the filter element, and completing the installation or storage of the filter element. The replacement process does not require manual participation throughout, and no fixings such as clamps are required during replacement, which reduces configuration, saves manpower, and improves processing efficiency.

[0030] Furthermore, the protruding rod and the matching piece are located on the same axis, and a connecting protrusion is provided at the bottom of the protruding rod, and a connecting groove matching with the positioning protrusion is provided at the bottom of the positioning groove.

[0031] By arranging the protruding rod and the matching piece on the same axis, it is easy to align the mounting plate and the filter element when installing and removing the filter element, thereby improving the installation accuracy and efficiency and avoiding deviation. At the same time, by arranging a connecting protrusion at the bottom of the protruding rod and a connecting groove at the bottom of the positioning groove, the filter element can be easily fixed in the mounting groove through the cooperation of the connecting protrusion and the connecting groove, and the filter element can be prevented from being easily separated.

[0032] Furthermore, a first limiting head is provided on the first guide rod, and the first spring is sleeved on the first guide rod and located between the first limiting head and the fixing portion.

[0033] By arranging the first limit head on the first guide rod, the positions of the first guide rod and the movable part can be limited to prevent the first guide rod from being separated from the fixed part. The movable distance of the movable part can also be limited to fix the first spring to prevent the first spring from being separated from the first guide rod. At the same time, it cooperates with the first spring to reset the movement of the movable part and facilitates the separation of the matching rod and the filter element.

[0034] Furthermore, a second limiting head is provided on the second guide rod, and the second limiting head is located in the movable groove and can slide in the movable groove.

[0035] The second lower head can be provided to limit the second guide rod to prevent the second guide rod from being separated from the positioning groove. At the same time, the second limiting head can slide in the movable groove to further limit the second guide rod to prevent the second guide rod from being offset when moving.

[0036] Furthermore, a buffer pad is provided on the opening edge of the positioning groove, and a wear-resistant layer is provided on the inner wall of the positioning groove.

[0037] The setting of the buffer pad can protect the positioning groove and the filter element, so that the filter element can avoid friction and reduce wear during installation. At the same time, the wear-resistant layer set in the positioning groove can have a wear-resistant effect, thereby extending the service life.

[0038] The beneficial effects of this application are:

[0039] 1. By setting up a filtering device, impurities that may be entrained in the raw materials are effectively removed to prevent these impurities from entering the subsequent processing steps, thereby avoiding the adverse effects of impurities on product performance, appearance and durability, and significantly improving the overall quality of the final product. At the same time, the detachable design of the filter element makes replacement and maintenance simple and quick, and can quickly respond to changes in different raw materials or production needs, reducing production interruptions and failure rates caused by impurity accumulation, and improving the stability and efficiency of the production line;

[0040] 2. By setting up a replacement structure, the filter element can be installed or stored quickly, and the replacement process does not require manual participation. No fixing parts such as clamps are required during replacement, which reduces configuration, saves manpower, and improves processing efficiency.

[0041] 3. By arranging the first limit head on the first guide rod, the positions of the first guide rod and the movable part can be limited to prevent the first guide rod from being separated from the fixed part. The movable distance of the movable part can also be limited to fix the first spring to prevent the first spring from being separated from the first guide rod. At the same time, it cooperates with the first spring to reset the movement of the movable part and facilitates the separation of the matching rod and the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the structure of the present invention;

[0043] Figure 2 It is a structural schematic diagram of the replacement device of the present invention;

[0044] Figure 3 make Figure 3 A cross-sectional view of

[0045] Figure 4 yes Figure 3 A schematic diagram of the structure from another perspective;

[0046] Figure 5 yes Figure 3 The main view;

[0047] Figure 6 yes Figure 5 Cross-sectional view along the AA direction.

[0048] The reference numerals in the figure are: 100, extruder body; 110, extrusion channel; 200, filter seat; 210, filter channel; 220, forming mold; 230, filter element; 300, storage structure; 310, frame; 320, driver; 330, mounting groove; 400, replacement structure; 410, rotating seat; 420, rotating disk; 430, mounting ring; 431, matching piece; 432, opening; 440, matching rod; 441, elastic tooth; 450 , guide frame; 451, movable part; 452, fixed part; 453, first guide rod; 454, first spring; 455, electric fastener; 456, first limit head; 460, positioning groove; 461, movable groove; 462, buffer pad; 470, receiving frame; 471, collar; 472, second guide rod; 473, second limit head; 480, second spring; 490, protruding rod; 491, connecting protrusion; 492, connecting groove; 500, storage rack. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0050] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0051] The automated EVA foam raw material melting and extrusion device provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0052] Embodiment 1:

[0053] like Figure 1 and Figure 2 As shown, the embodiment of the present application provides an automated EVA foam raw material melting and extrusion device, including an extruder body 100, one side of which is provided with an extrusion channel 110, and also includes a filtering device, the filtering device including:

[0054] The filter seat 200 has a filter channel 210 in communication with the extrusion channel 110, and a molding die 220 is disposed at one end thereof away from the extrusion channel 110;

[0055] The filter element 230 is disposed in the filter channel 210;

[0056] A replacement device, arranged on the filter seat 200;

[0057] The filter element 230 is detachably arranged on the filter seat 200 through a replacement device.

[0058] In some implementations of the embodiments of the present application, Figure 1 As shown, the above-mentioned automated EVA foam raw material melting and extrusion device is used, and the impurities that may be entrained in the raw material are effectively removed by setting a filtering device to prevent these impurities from entering the subsequent processing steps, thereby avoiding the adverse effects of impurities on product performance, appearance and durability, and significantly improving the overall quality of the final product. At the same time, the detachable design of the filter element 230 makes replacement and maintenance simple and fast, and can quickly respond to changes in different raw materials or production needs, reduce production interruptions and failure rates caused by impurity accumulation, and improve the stability and efficiency of the production line. In addition, by regularly replacing the filter element 230, the wear and corrosion caused by long-term accumulation of impurities on the inside of the equipment can be avoided, the service life of the equipment can be extended, and the maintenance costs and time costs caused by equipment failures can be reduced. And the automated filtering process reduces the need for manual intervention, making the entire melting and extrusion process smoother and more efficient, and the pure raw materials also reduce the defective rate in the production process, improve the finished product rate, and further improve the overall production efficiency.

[0059] Embodiment 2:

[0060] An embodiment of the present application provides an automated EVA foam raw material melting and extrusion device. In addition to the above-mentioned technical features, the automated EVA foam raw material melting and extrusion device of the embodiment of the present application also includes the following technical features.

[0061] like Figures 2 to 6 As shown, the replacement device includes:

[0062] The storage structure 300 includes a frame 310 and a driver 320 for driving the frame 310 to rotate. The frame 310 is provided with a plurality of mounting slots 330 for placing the filter element 230;

[0063] The replacement structure 400 is disposed on one side of the filter seat 200 and is used to replace the filter element 230 on the storage structure 300, and includes a rotating seat 410 and two rotating disks 420 disposed on the rotating seat 410, and the filter element 230 cooperates with the rotating disks 420;

[0064] The storage rack 500 is disposed on one side of the replacement structure 400 and is used to store the filter element 230 for replacement;

[0065] The frame 310 is disposed on the top of the filter seat 200 , and the filter seat 200 is provided with a through slot for the frame 310 to pass through.

[0066] In the embodiment of the present application, the frame 310 is provided with a mounting slot 330 for carrying a plurality of filter cartridges 230, so as to facilitate the replacement of the filter cartridges 230. When replacing, the new filter cartridge 230 is pre-placed on the storage rack 500 for quick grabbing, and the driver 320 is in a standby state, waiting for a replacement instruction. When the filter cartridge 230 needs to be replaced, the driver 320 is started, driving the frame 310 to rotate to a specified position, so that the filter cartridge 230 to be replaced is aligned with the replacement structure 400. First, grab the new filter element 230 from the storage rack 500 to a rotating disk 420, and at the same time grab the used filter element 230 to another rotating disk 420, then rotate the rotating seat 410 180°, align the rotating disk 420 with the new filter element 230 with the mounting groove 330 of the storage structure 300, and at the same time align the rotating disk 420 with the old filter element 230 with the storage rack 500, and move again to place the new filter element 230 from the rotating disk 420 into the mounting groove 330 of the storage structure 300, and at the same time place the old filter element 230 from the rotating disk 420 onto the storage rack 500, the driver 320 stops rotating, and the replacement operation is completed. At this time, the filter element 230 in the storage structure 300 has been updated to a new filter element 230, and the old filter element 230 has been properly collected on the storage rack 500. In this process, each rotating disk 420 is connected to a cylinder for driving the rotating disk 420 to move.

[0067] Embodiment 3:

[0068] An embodiment of the present application provides an automated EVA foam raw material melting and extrusion device. In addition to the above-mentioned technical features, the automated EVA foam raw material melting and extrusion device of the embodiment of the present application also includes the following technical features.

[0069] like Figure 2 and Figure 6 As shown, the replacement structure 400 includes:

[0070] The mounting ring 430 is disposed on the edge of the filter element 230 . A plurality of matching pieces 431 are provided on the mounting ring 430 . Openings 432 are provided on both sides of the inner wall of each matching piece 431 .

[0071] The matching rod 440 is disposed on the rotating disk 420, and an elastic tooth 441 is disposed on one end thereof, and the elastic tooth 441 matches with the opening 432;

[0072] The guide frame 450 includes a movable portion 451, a fixed portion 452, and a first guide rod 453 connecting the movable portion 451 and the fixed portion 452. The first guide rod 453 penetrates the fixed portion 452 and is slidably connected to the fixed portion 452. A first spring 454 is disposed between the first guide rod 453 and the fixed portion 452.

[0073] The movable frame is provided with an electric fastener 455 , and the movable frame can be fixed to the matching rod 440 through the electric fastener 455 .

[0074] Furthermore, the replacement structure 400 further includes:

[0075] The positioning grooves 460 are provided on the mounting grooves 330 , and the number of the positioning grooves 460 is the same as the number of the matching rods 440 ;

[0076] The receiving frame 470 includes a collar 471 spaced apart from the positioning groove 460 and a second guide rod 472 connecting the collar 471 and the positioning groove 460, wherein the collar 471 is slidably connected to the positioning groove 460 via the second guide rod 472;

[0077] A second spring 480 is disposed on the second guide rod 472 and is located between the collar 471 and the receiving frame 470;

[0078] The protruding rod 490 is disposed on the mounting ring 430 and is adapted to the collar 471;

[0079] The mounting groove 330 is provided with a movable groove 461 for the second guide rod 472 to move and communicate with the positioning groove 460 , and the elastic coefficient of the first spring 454 is smaller than that of the second spring 480 .

[0080] In the embodiment of the present application, there are two situations, one of which is when the filter element 230 needs to be replaced. At this time, there is no filter element 230 on the rotating disk 420, and the filter element 230 needs to be taken out from the installation groove 330 or the storage rack 500. At this time, the electric fastening rod works to fix the movable part 451 and the matching rod 440. The rotating disk 420 drives the matching rod 440 to move the filter element 230 under the action of the cylinder. As the matching rod 440 gradually approaches, the movable part 451 contacts the collar 471. Due to the movable part 4 51 is fixed, and under the action of the second spring 480, the ring 471 is compressed. At this time, the protruding rod 490 cooperates with the ring 471 and enters the positioning groove 460 through the ring 471. At the same time, the matching rod 440 gradually enters the matching piece 431, and as the matching rod 440 gradually goes deeper, the elastic tooth 441 is compressed into the matching rod 440, and finally pops out and engages with the opening 432. At this time, the rotating disk 420 is connected with the filter element 230. Under the action of the cylinder, the rotating disk 420 takes the filter element 230 out of the mounting groove 330.

[0081] In another case, there is a filter element 230 on the rotating disk 420, and the filter element 230 needs to be placed in the installation groove 330 or the storage rack 500. At this time, the rotating disk 420 is controlled by the cylinder to drive the filter element 230 to approach the installation groove 330. As the convex rod 490 approaches, it passes through the collar 471 and enters the positioning groove 460. As the distance between the filter element 230 and the installation groove 330 gradually approaches, the movable part 451 on the matching rod 440 contacts the collar 471, and because the elastic coefficient of the first spring 454 is smaller than that of the second spring 480, the filter element 230 is moved to the installation groove 330. Therefore, the movable part 451 is affected by the thrust and moves toward the end away from the filter screen. At the same time, the ring 471 will gradually squeeze the elastic teeth 441 on the matching rod 440, and finally separate the elastic teeth 441 from the opening 432, thereby completing the separation between the filter element 230 and the rotating disk 420, achieving the separation between the rotating disk 420 and the filter element 230, and completing the installation or storage of the filter element 230. The replacement process does not require manual participation throughout, and no fixings such as clamps are required during replacement, which reduces configuration, saves manpower, and improves processing efficiency.

[0082] Embodiment 4:

[0083] An embodiment of the present application provides an automated EVA foam raw material melting and extrusion device. In addition to the above-mentioned technical features, the automated EVA foam raw material melting and extrusion device of the embodiment of the present application also includes the following technical features.

[0084] like Figures 2 to 6 As shown, the protruding rod 490 and the matching piece 431 are located on the same axis, and a connecting protrusion 491 is provided at the bottom of the protruding rod 490, and a connecting groove 492 matching with the positioning protrusion is provided at the bottom of the positioning groove 460.

[0085] In the embodiment of the present application, by arranging the protruding rod 490 and the fitting 431 on the same axis, it is easy to align the mounting plate with the filter element 230 when installing or removing the filter element 230, thereby improving the installation accuracy and efficiency and avoiding offset. At the same time, by arranging a connecting protrusion 491 at the bottom of the protruding rod 490 and a connecting groove 492 at the bottom of the positioning groove 460, the filter element 230 can be easily fixed in the mounting groove 330 through the cooperation of the connecting protrusion 491 and the connecting groove 492, thereby preventing the filter element 230 from being easily detached.

[0086] Embodiment 5:

[0087] An embodiment of the present application provides an automated EVA foam raw material melting and extrusion device. In addition to the above-mentioned technical features, the automated EVA foam raw material melting and extrusion device of the embodiment of the present application also includes the following technical features.

[0088] like Figures 2 to 6As shown, a first limiting head 456 is disposed on the first guide rod 453 , and the first spring 454 is sleeved on the first guide rod 453 and located between the first limiting head 456 and the fixing portion 452 .

[0089] In the embodiment of the present application, by setting the first limit head 456 on the first guide rod, the positions of the first guide rod 453 and the movable part 451 can be limited to prevent the first guide rod 453 from being separated from the fixed part 452. The movable distance of the movable part 451 can also be limited to fix the first spring 454 to prevent the first spring 454 from being separated from the first guide rod 453. At the same time, it cooperates with the first spring 454 to reset the movement of the movable part 451, and also facilitates the separation of the matching rod 440 and the filter element 230.

[0090] Furthermore, a second limiting head 473 is provided on the second guide rod 472 . The second limiting head 473 is located in the movable groove 461 and can slide in the movable groove 461 .

[0091] In some embodiments of the present application, the second guide rod 472 can be limited by setting a second lower head to prevent the second guide rod 472 from disengaging from the positioning groove 460. At the same time, the second limiting head 473 can slide in the movable groove 461, further limiting the second guide rod and preventing the second guide rod from being offset when moving.

[0092] Embodiment 6:

[0093] An embodiment of the present application provides an automated EVA foam raw material melting and extrusion device. In addition to the above-mentioned technical features, the automated EVA foam raw material melting and extrusion device of the embodiment of the present application also includes the following technical features.

[0094] like Figures 2 to 6 As shown, a buffer pad 462 is provided on the opening edge of the positioning groove 460 , and a wear-resistant layer is provided on the inner wall of the positioning groove 460 .

[0095] In the embodiment of the present application, the buffer pad 462 can protect the positioning groove 460 and the filter element 230, so that the filter element 230 can avoid friction and reduce wear during installation. At the same time, the wear-resistant layer provided in the positioning groove 460 can have a wear-resistant effect, thereby extending the service life.

[0096] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0097] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An automated EVA foam raw material melting and extrusion device, comprising an extruder body (100), one side of which is provided with an extrusion channel (110), characterized in that: Also included is a filtering device, the filtering device comprising: A filter seat (200) is provided with a filter channel (210) in communication with the extrusion channel (110) and a molding die (220) is provided at one end thereof away from the extrusion channel (110); A filter element (230) is disposed in the filter channel (210); A replacement device, arranged on the filter seat (200); The filter element (230) is detachably arranged on the filter seat (200) via a replacement device.

2. The automated EVA foam raw material melting and extrusion device according to claim 1, characterized in that: The replacement device comprises: The storage structure (300) comprises a frame (310) and a driver (320) for driving the frame (310) to rotate, wherein a plurality of mounting grooves (330) for placing filter elements (230) are provided on the frame (310); A replacement structure (400) is arranged on one side of the filter seat (200) and is used to replace the filter element (230) on the storage structure (300), comprising a rotating seat (410) and two rotating disks (420) arranged on the rotating seat (410), and the filter element (230) cooperates with the rotating disks (420); A storage rack (500) is disposed on one side of the replacement structure (400) and is used to store the filter element (230) for replacement; The frame (310) is arranged on the top of the filter seat (200), and the filter seat (200) is provided with a through slot for the frame (310) to pass through.

3. The automated EVA foam raw material melting and extrusion device according to claim 2, characterized in that: The replacement structure (400) comprises: A mounting ring (430) is arranged on the edge of the filter element (230), and a plurality of matching pieces (431) are provided on the mounting ring (430), and openings (432) are provided on both sides of the inner wall of each matching piece (431); A matching rod (440) is disposed on the rotating disk (420), and an elastic tooth (441) is disposed on one end of the matching rod, and the elastic tooth (441) matches with the opening (432); The guide frame (450) comprises a movable portion (451), a fixed portion (452), and a first guide rod (453) connecting the movable portion (451) and the fixed portion (452); the first guide rod (453) penetrates the fixed portion (452) and is slidably connected to the fixed portion (452); and a first spring (454) is provided between the first guide rod (453) and the fixed portion (452); The movable frame is provided with an electric fastener (455), and the movable frame can be fixed to the matching rod (440) via the electric fastener (455).

4. The automated EVA foam raw material melting and extrusion device according to claim 3, characterized in that: The replacement structure (400) further includes: Positioning grooves (460) are arranged on the mounting groove (330), and the number of the positioning grooves (460) is the same as the number of the matching rods (440); The receiving frame (470) comprises a collar (471) spaced apart from the positioning groove (460) and a second guide rod (472) connecting the collar (471) and the positioning groove (460), wherein the collar (471) is slidably connected to the positioning groove (460) via the second guide rod (472); A second spring (480) is disposed on the second guide rod (472) and is located between the collar (471) and the receiving frame (470); A protruding rod (490) is disposed on the mounting ring (430) and is adapted to fit the sleeve ring (471); The mounting groove (330) is provided with a movable groove (461) for the second guide rod (472) to move and communicate with the positioning groove (460), and the elastic coefficient of the first spring (454) is smaller than that of the second spring (480).

5. The automated EVA foam raw material melting and extrusion device according to claim 4, characterized in that: The convex rod (490) and the matching piece (431) are located on the same axis, and a connecting protrusion (491) is provided at the bottom of the convex rod (490), and a connecting groove (492) matching with the positioning protrusion is provided at the bottom of the positioning groove (460).

6. The automated EVA foam raw material melting and extrusion device according to claim 3, characterized in that: The first guide rod (453) is provided with a first limit head (456), and the first spring (454) is sleeved on the first guide rod (453) and located between the first limit head (456) and the fixing portion (452).

7. The automated EVA foam raw material melting and extrusion device according to claim 4, characterized in that: The second guide rod (472) is provided with a second limiting head (473), and the second limiting head (473) is located in the movable groove (461) and can slide in the movable groove (461).

8. The automated EVA foam raw material melting and extrusion device according to claim 7, characterized in that: A buffer pad (462) is provided on the opening edge of the positioning groove (460), and a wear-resistant layer is provided on the inner wall of the positioning groove (460).

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