Polyethylene foaming extrusion molding device

Abstract

The utility model relates to the technical field of extrusion molding devices, in particular to a polyethylene foaming extrusion molding device which comprises an extrusion charging barrel, one end of the extrusion charging barrel is fixedly connected with an extrusion seat, an extrusion molding plate is arranged in the extrusion seat, the surface of the extrusion molding plate is provided with an extrusion opening, and the extrusion opening is communicated with the extrusion charging barrel. A fixing block is fixedly connected to the surface of the material extruding base, a clamping base is fixedly connected to the surface of the material extruding barrel, the fixing block is connected with the clamping base in a clamped mode, a square groove is formed in the surface of the fixing block, a first clamping block is slidably connected to the interior of the square groove, and a spring is fixedly connected to the surface of the first clamping block. When the extrusion forming plate is abraded, damaged or blocked, the extrusion forming plate can be conveniently detached to be maintained or replaced, meanwhile, a proper extrusion forming plate can be rapidly replaced according to specific production requirements, flexible production is achieved, and diversified market requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of extrusion molding devices, in particular to a polyethylene foaming extrusion molding device. Background Art

[0002] Polyethylene foam material has excellent properties such as light weight, heat insulation, and cushioning, and is widely used in packaging, construction, automobile and other industries. Announcement No.: CN211941764U discloses a device for thermoplastic polyester foam molding, including an extrusion barrel, an insulation sleeve is installed on the barrel wall of the extrusion barrel, and the open ends on both sides of the insulation sleeve are respectively welded and fixedly connected to the left flange and the right flange. A plurality of heat-conducting ring plates are evenly installed in the spacing cavity between the insulation sleeve and the extrusion barrel, and heat-conducting rods are symmetrically installed on the upper and lower sides of the spacing cavity between the insulation sleeve and the extrusion barrel. A heating coil is spirally installed on the heat-conducting rod from left to right. The adoption of this technical solution has a simple structure and is easy to assemble and install, so that the foaming mixture is heated evenly during extrusion, avoiding heat loss of the foaming mixture during extrusion and transportation, thereby avoiding its agglomeration and extrusion, which is beneficial to improving the molding rate of the extruded product. However, during the use of the above technology, the right flange is fixedly connected to the extrusion barrel and cannot be disassembled and replaced. This means that the device can only produce products of the same specification and size, making the device less practical and not conducive to improving the scope of application and practical value of the device. Therefore, improvement is needed. Utility Model Content

[0003] The purpose of this utility model is to solve the technical problems raised in the above background technology.

[0004] The utility model adopts the following technical scheme: a polyethylene foam extrusion molding device, comprising an extrusion barrel, one end of the extrusion barrel is fixedly connected to the extrusion seat, an extrusion forming plate is arranged inside the extrusion seat, the surface of the extrusion forming plate is provided with an extrusion port, the surface of the extrusion seat is fixedly connected to a fixed block, the surface of the extrusion barrel is fixedly connected to a clamping seat, the fixed block is clamped and connected to the clamping seat, the surface of the fixed block is provided with a square groove, the inside of the square groove is slidably connected with a first clamping block, the surface of the first clamping block is fixedly connected to a spring, the other end of the spring is fixedly connected to a second clamping block, the surfaces of the first clamping block and the second clamping block are respectively fixedly connected to a first pressure rod and a second pressure rod, the surface of the extrusion barrel is fixedly connected to a motor, the output end of the motor is fixedly connected to a rotating shaft, the surface of the rotating shaft is fixedly connected to a spiral extrusion plate, and the surface of the extrusion barrel is fixedly connected to a feed hopper.

[0005] Preferably, a circular connector is fixedly connected to the surface of the extrusion seat, a circular groove is formed on the inner wall of the extrusion barrel, the circular connector is inserted into the circular groove, and a sealing ring is provided between the circular groove and the circular connector. This can improve the sealing of the connection between the extrusion barrel and the extrusion seat and prevent leakage.

[0006] Preferably, the first clamping blocks are provided in two groups, symmetrically distributed on both sides of the middle portion of the surface of the extruder seat, and the second clamping blocks are provided in two groups, symmetrically distributed on both sides of the middle portion of the surface of the extruder seat. This can improve the stability of the connection between the extruder seat and the extrusion barrel.

[0007] Preferably, a card slot is provided on the surface of the card holder, and the card slot is aligned with the square slot, so as to facilitate inserting the first card block and the second card block into the card slot.

[0008] Preferably, a heating wire is wound around the surface of the extrusion barrel. Here, the foaming mixture in the extrusion barrel can be heated to avoid heat loss of the foaming mixture during extrusion and transportation, thereby preventing the foaming mixture from agglomerating and extruding, thereby helping to improve the extrusion product forming rate.

[0009] Preferably, a magnet is fixedly connected to the inner surface of the extrusion seat, and the magnet is adsorbed and connected to the extrusion forming plate. Here, the extrusion forming plate can be kept stable inside the extrusion seat, avoiding the extrusion forming plate shaking inside the extrusion seat during installation, which may affect the installation work.

[0010] Preferably, a protrusion is fixedly connected to the surface of the extrusion barrel, and a circular hole is formed on the surface of the protrusion. A plug rod is fixedly connected to the surface of the extrusion seat, and the plug rod is inserted into the circular hole. Here, when the circular ring connector is inserted into the circular groove, the extrusion seat can be guided and limited to prevent it from rotating, so that the square groove on the fixed block can be quickly aligned with the slot on the holder, facilitating the insertion of the first and second blocks into the slots, further improving the efficiency and convenience of the fixed connection between the extrusion seat and the extrusion barrel.

[0011] Compared with the prior art, the advantages and positive effects of the present invention are:

[0012] 1. The utility model is provided with an extrusion seat, a fixed block, a card seat, a first card block, a spring, a second card block, a first pressure rod and a second pressure rod structure. When it is necessary to produce polyethylene foam products of different shapes and sizes, it is necessary to replace the corresponding extrusion forming plate as needed. First, press the first pressure rod and the second pressure rod on the fixed seat, and the first card block and the second card block slide in the square groove in the fixed block and squeeze the spring. Then, the extrusion seat is removed from the extrusion barrel, and then the extrusion forming plate in the extrusion seat is taken out and replaced with the required extrusion forming plate. When the new extrusion forming plate is placed inside the extrusion seat, the magnet inside the extrusion seat will mate with the new extrusion forming plate. The forming plates are sucked together, and then the annular connector on the extrusion seat is inserted into the circular groove on the inner wall of the extrusion barrel. Then, the first pressure rod and the second pressure rod are pressed again to insert the first clamping block and the second clamping block into the clamping groove in the clamping seat. Then, the first pressure rod and the second pressure rod are released, and the first clamping block and the second clamping block are clamped together with the clamping groove under the action of the spring. This ensures that when the extrusion forming plate has problems such as wear, damage or blockage, it can be easily disassembled for repair or replacement. At the same time, the appropriate extrusion forming plate can be quickly replaced according to specific production needs, thereby realizing flexible production and meeting diverse market needs, which is conducive to improving the scope of application and practical value of the device.

[0013] 2. The utility model has a configuration in which, by providing a protrusion and an insertion rod structure, when the circular connecting piece is inserted into the circular groove, the insertion rod will first be inserted into the circular hole on the protrusion to prevent the extrusion seat from rotating. This enables the extrusion seat to be guided and limited when the circular connecting piece is inserted into the circular groove to prevent it from rotating, so that the square groove on the fixed block can be quickly aligned with the card slot on the card seat, facilitating the insertion of the first card block and the second card block into the card slot, and further improving the working efficiency and convenience of fixedly connecting the extrusion seat and the extrusion barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of a polyethylene foam extrusion molding device proposed in the utility model;

[0015] Figure 2 This is a rear view of a polyethylene foam extrusion molding device proposed by the utility model;

[0016] Figure 3 This is a cross-sectional view of a polyethylene foam extrusion molding device proposed in the utility model;

[0017] Figure 4 This is an exploded schematic diagram of a polyethylene foam extrusion molding device proposed in the utility model;

[0018] Figure 5 The utility model provides a partial exploded schematic diagram of a polyethylene foam extrusion molding device.

[0019] Legend:

[0020] 1, extrusion barrel; 2, feed hopper; 3, extrusion seat; 4, motor; 5, rotating shaft; 6, spiral extrusion plate; 7, heating wire; 8, extrusion forming plate; 9, first clamping block; 10, second clamping block; 11, spring; 12, first pressing rod; 13, second pressing rod; 14, fixed block; 15, square groove; 16, clamping seat; 17, clamping groove; 18, circular groove; 19, sealing ring; 20, protruding block; 21, round hole; 22, insertion rod; 23, circular ring connecting piece; 24, magnet; 25, extrusion port. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above objectives, features and advantages of the present application, the present application will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be practiced without the specific details, which are different from the description, therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0023] Embodiment one

[0024] Please refer to Figures 1-5The utility model provides a technical solution: a polyethylene foam extrusion molding device, comprising an extrusion barrel 1, one end of the extrusion barrel 1 is fixedly connected to an extrusion seat 3, an extrusion forming plate 8 is arranged inside the extrusion seat 3, an extrusion port 25 is provided on the surface of the extrusion seat, a fixed block 14 is fixedly connected to the surface of the extrusion barrel 1, a clamping seat 16 is fixedly connected to the fixed block 14 on the surface of the clamping seat 16, a square groove 15 is provided on the surface of the fixed block 14, a first clamping block 9 is slidably connected to the inside of the square groove 15, a spring 11 is fixedly connected to the surface of the first clamping block 9, a second clamping block 10 is fixedly connected to the surfaces of the first clamping block 9 and the second clamping block 10 respectively, a motor 4 is fixedly connected to the surface of the extrusion barrel 1, an output end of the motor 4 is fixedly connected to a rotating shaft 5, a surface of the rotating shaft 5 is fixedly connected to a spiral extrusion plate 6, the surface of the extrusion barrel 1 is fixedly connected to the feed hopper 2, and the surface of the extrusion seat 3 is fixedly connected to a circular ring connecting rod. The connecting piece 23 has a circular groove 18 on the inner wall of the extrusion barrel 1, and the circular ring connecting piece 23 is inserted into the inside of the circular groove 18. A sealing ring 19 is provided between the circular groove 18 and the circular ring connecting piece 23, which can improve the sealing of the connection between the extrusion barrel 1 and the extrusion seat 3 to prevent leakage. There are two groups of first clamping blocks 9, and the two groups of first clamping blocks 9 are symmetrically distributed on both sides of the middle part of the surface of the extrusion seat 3. There are two groups of second clamping blocks 10, and the two groups of second clamping blocks 10 are symmetrically distributed on both sides of the middle part of the surface of the extrusion seat 3, which can improve the stability of the connection between the extrusion seat 3 and the extrusion barrel 1. The surface of the clamping seat 16 is provided with a clamping groove 17, and the clamping groove 17 is aligned with the square groove 15. It is convenient to insert the first clamping block 9 and the second clamping block 10 into the clamping groove 17. The surface of the extrusion barrel 1 is wrapped with a heating wire 7, which can heat the foaming mixture in the extrusion barrel 1 to avoid heat loss of the foaming mixture during extrusion and transportation, thereby preventing its agglomeration and extrusion, which is beneficial to improving the molding rate of the extruded product.

[0025] Example 2

[0026] See also Figures 4-5The inner surface of the extrusion seat 3 is fixedly connected with a magnet 24, and the magnet 24 is adsorbed and connected with the extrusion forming plate 8, which can keep the extrusion forming plate 8 stable inside the extrusion seat 3, avoiding the shaking of the extrusion forming plate 8 inside the extrusion seat 3 when installing the extrusion seat 3 and affecting the installation work. The surface of the extrusion barrel 1 is fixedly connected with a protrusion 20, and a circular hole 21 is opened on the surface of the protrusion 20. The surface of the extrusion seat 3 is fixedly connected with an insertion rod 22, and the insertion rod 22 is inserted into the inside of the circular hole 21. Here, the extrusion seat 3 can be guided and limited when the circular ring connecting piece 23 is inserted into the circular groove 18 to prevent it from rotating, so that the square groove 15 on the fixed block 14 can be quickly aligned with the slot 17 on the card seat 16, which facilitates the insertion of the first card block 9 and the second card block 10 into the card slot 17, further improving the working efficiency and convenience of the fixed connection between the extrusion seat 3 and the extrusion barrel 1.

[0027] Working principle: During use, first start the heating wire 7 so that the heat generated by the heating wire 7 preheats the extrusion barrel 1, then add the polyethylene foam mixture into the extrusion barrel 1 through the feed hopper 2, then start the motor 4, the output end of the motor 4 drives the rotating shaft 5 and the spiral extrusion plate 6 to rotate, pushing the mixture to the extrusion forming plate 8, and the mixture is discharged from the extrusion port 25 on the extrusion forming plate 8. When it is necessary to produce polyethylene foam products of different shapes and sizes, it is necessary to replace the corresponding extrusion forming plate 8 as needed. First, press the first pressure rod 12 and the second pressure rod 1 on the fixed seat. 3, the first block 9 and the second block 10 slide in the square groove 15 in the fixed block 14 and squeeze the spring 11, then remove the extrusion seat 3 from the extrusion barrel 1, then remove the extrusion forming plate 8 in the extrusion seat 3, and replace it with the required extrusion forming plate 8. When the new extrusion forming plate 8 is placed inside the extrusion seat 3, the magnet 24 inside the extrusion seat 3 will be attracted to the new extrusion forming plate 8, then insert the annular connector 23 on the extrusion seat 3 into the circular groove 18 on the inner wall of the extrusion barrel 1, and the sealing ring 19 between the circular groove 18 and the annular connector 23 can improve the connection between the extrusion barrel 1 and the extrusion seat 3, and then press the first pressure rod 12 and the second pressure rod 13 again to insert the first clamping block 9 and the second clamping block 10 into the clamping groove 17 in the clamping seat 16, and then release the first pressure rod 12 and the second pressure rod 13. The first clamping block 9 and the second clamping block 10 are clamped together with the clamping groove 17 under the action of the spring 11, so that when the extrusion forming plate 8 is worn, damaged or blocked, it can be easily disassembled for maintenance or replacement. At the same time, the appropriate extrusion forming plate 8 can be quickly replaced according to specific production needs, so as to realize flexible production and meet diversified market needs, which is conducive to improving the performance of the device. The scope of application and practical value of the device is that when the circular connecting piece 23 is inserted into the circular groove 18, the insertion rod 22 will first be inserted into the circular hole 21 on the protrusion 20 to prevent the extrusion seat 3 from rotating, thereby achieving the ability to guide and limit the extrusion seat 3 when the circular connecting piece 23 is inserted into the circular groove 18 to prevent it from rotating, so that the square groove 15 on the fixed block 14 can be quickly aligned with the slot 17 on the card seat 16, facilitating the insertion of the first card block 9 and the second card block 10 into the slot 17, further improving the working efficiency and convenience of the fixed connection between the extrusion seat 3 and the extrusion barrel 1.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A polyethylene foam extrusion molding device, comprising an extrusion barrel (1), characterized in that: One end of the extrusion barrel (1) is fixedly connected to an extrusion seat (3), an extrusion forming plate (8) is provided inside the extrusion seat (3), an extrusion port (25) is provided on the surface of the extrusion forming plate (8), a fixed block (14) is fixedly connected to the surface of the extrusion seat, a clamping seat (16) is fixedly connected to the surface of the extrusion barrel (1), the fixed block (14) is engaged with the clamping seat (16), a square groove (15) is provided on the surface of the fixed block (14), a first clamping block (9) is slidably connected inside the square groove (15), and the first A spring (11) is fixedly connected to the surface of the block (9), and the other end of the spring (11) is fixedly connected to the second block (10). The surfaces of the first block (9) and the second block (10) are fixedly connected to a first pressure rod (12) and a second pressure rod (13), respectively. The surface of the extrusion barrel (1) is fixedly connected to a motor (4), the output end of the motor (4) is fixedly connected to a rotating shaft (5), the surface of the rotating shaft (5) is fixedly connected to a spiral extrusion plate (6), and the surface of the extrusion barrel (1) is fixedly connected to a feed hopper (2).

2. The polyethylene foam extrusion molding device according to claim 1, characterized in that: A circular connecting piece (23) is fixedly connected to the surface of the extrusion seat (3), a circular groove (18) is opened on the inner wall of the extrusion barrel (1), the circular connecting piece (23) is inserted into the inside of the circular groove (18), and a sealing ring (19) is provided between the circular groove (18) and the circular connecting piece (23).

3. The polyethylene foam extrusion molding device according to claim 1, characterized in that: There are two groups of the first card blocks (9), and the two groups of the first card blocks (9) are symmetrically distributed on both sides of the middle of the surface of the extrusion seat (3); there are two groups of the second card blocks (10), and the two groups of the second card blocks (10) are symmetrically distributed on both sides of the middle of the surface of the extrusion seat (3).

4. The polyethylene foam extrusion molding device according to claim 1, characterized in that: A card slot (17) is provided on the surface of the card seat (16), and the card slot (17) and the square slot (15) are aligned with each other.

5. The polyethylene foam extrusion molding device according to claim 1, characterized in that: A heating wire (7) is wound around the surface of the extrusion barrel (1).

6. The polyethylene foam extrusion molding device according to claim 1, characterized in that: A magnet (24) is fixedly connected to the inner surface of the extrusion seat (3), and the magnet (24) is adsorbed and connected to the extrusion forming plate (8).

7. The polyethylene foam extrusion molding device according to claim 1, characterized in that: A convex block (20) is fixedly connected to the surface of the extrusion barrel (1), a circular hole (21) is opened on the surface of the convex block (20), and an insertion rod (22) is fixedly connected to the surface of the extrusion seat (3), and the insertion rod (22) is inserted into the inside of the circular hole (21).

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