Compatilizer melt co-extrusion forming die head

Abstract

The utility model relates to the technical field of plastic manufacturing, in particular to a compatilizer melting co-extrusion forming die head which comprises a first die plate and further comprises a second die plate, the second die plate is arranged on one side of the first die plate, two main runners and two sets of side runners are arranged on one side of the first die plate and one side of the second die plate respectively, and the first die plate and the second die plate are arranged in parallel. The two main runners are oppositely arranged, the two sets of side runners are oppositely arranged, the side runners are arranged on one sides of the main runners and communicate with the main runners, confluence grooves are formed in one side of the first mold plate and one side of the second mold plate correspondingly, the two main runners communicate with the confluence grooves correspondingly, and the first mold plate and the second mold plate communicate with the confluence grooves correspondingly. One side of the first mold plate and one side of the second mold plate are each provided with two auxiliary flow channels, the auxiliary flow channels communicate with the main flow channels, the side flow channels and the confluence grooves, and two first embedding grooves are formed in one side of the first mold plate, so that the mold head can be prevented from being damaged by high pressure generated when materials in the mold head are heated.

Description

Technical Field

[0001] This utility model relates to the field of plastic manufacturing technology, specifically to a compatibilizer melt co-extrusion molding die. Background Technology

[0002] Compatibilizer melt co-extrusion die is a device used to heat and melt multiple polymer raw materials containing compatibilizers, mix them thoroughly in the die through a specific flow channel structure, and extrude them into the required shape. It can improve the compatibility between polymers and enhance the performance and quality of composite materials.

[0003] In existing technologies, it is often necessary to heat the material in the die channel. Heating can effectively increase the temperature of the material and thus enhance its fluidity. However, this measure also brings drawbacks. Heating will intensify the movement of material molecules, resulting in a significant increase in the pressure in the channel. As a key component at the end of the extruder, the die is subjected to high pressure for a long time, and its structural strength and stability will be severely challenged, making it prone to deformation, cracking and other damage. To address this, we propose a compatibilizer melt co-extrusion die. Utility Model Content

[0004] One of the technical problems this application aims to solve is that heating the material in the flow channel generates high pressure, which can easily damage the die head.

[0005] To address the aforementioned technical problems, embodiments of this application provide a compatibilizer melt co-extrusion molding die, including a first template, and further comprising:

[0006] The second template is located on one side of the first template. Both the first and second templates have two main channels and two sets of side channels on one side. The two main channels and the two sets of side channels are arranged opposite to each other. The side channels are located on one side of the main channels and are connected to the main channels. Both the first and second templates have a confluence channel on one side. Both main channels are connected to the confluence channel. Both the first and second templates have two auxiliary channels on one side. The auxiliary channels are connected to the main channels, side channels and confluence channels.

[0007] In some embodiments, two first grooves are provided on one side of the first template, and the two first grooves are arranged opposite to each other. A second groove is provided on one side of the first template, and the second groove is arranged between the two first grooves.

[0008] In some embodiments, two first inserts are fixedly connected to one side of the second template. The two first inserts are arranged opposite to each other and are respectively fitted into two first grooves. A second insert is fixedly connected to one side of the second template. The second insert is disposed between the two first inserts and is fitted into a second groove. This is used to quickly position the first template and the second template, thereby sealing the first template and the second template.

[0009] In some embodiments, one end of the first template and the second template are each fixedly connected to two external rings, the two sets of external rings correspond to two sets of main channels respectively, and the two sets of external rings are arranged opposite to each other for inputting materials.

[0010] In some embodiments, a first circular groove is formed through the first template, a connecting pipe is fixedly connected to one side of the first template, and a second circular groove is formed through the second template for connecting and fixing the first template and the second template.

[0011] In some embodiments, a first groove and a second groove are respectively provided on one side of the first template and the second template. The first groove and the second groove are arranged opposite to each other. A first sealing strip and a second sealing strip are fixedly connected in both the first groove and the second groove. Two snap-fit ​​rings are fixedly connected in both the first groove and the second groove. The two sets of the first sealing strip, the second sealing strip and the snap-fit ​​rings are arranged opposite to each other.

[0012] In some embodiments, an output head is provided between the first groove and the second groove, and the output head has two sets of snap-fit ​​grooves on its outside. The output head is snapped and fixed by the two sets of snap-fit ​​grooves and the two sets of snap-fit ​​rings.

[0013] This utility model has at least the following beneficial effects:

[0014] By setting up main channels, side channels, auxiliary channels, and confluence channels, the number of channels is increased under high pressure. This can reduce pressure through the diversion effect. The principle is to disperse the material to more paths, reduce the flow rate of a single channel, and thus reduce the flow velocity and pressure gradient. At the same time, the multi-channel design can disperse shear stress and avoid local high pressure. In short, it can prevent the high pressure generated when the material inside the die is heated from damaging the die. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the first template structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the second template structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the output head structure of this utility model;

[0019] Figure 5 This utility model Figure 4 Enlarged view of point A.

[0020] In the diagram: 1. First template; 101. First groove; 102. Second groove; 103. First circular groove; 104. First recessed groove; 2. Second template; 201. First insert strip; 202. Second insert strip; 203. Second circular groove; 204. Second recessed groove; 3. Main flow channel; 4. Side flow channel; 5. Merging channel; 6. Auxiliary flow channel; 7. External connecting ring; 8. Connecting pipe; 9. First sealing strip; 10. Second sealing strip; 11. Snap-fit ​​ring; 12. Output head; 13. Snap-fit ​​groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0022] Please see Figures 1-5 This utility model provides a technical solution:

[0023] A compatibilizer melt co-extrusion molding die includes a first template 1 and a second template 2. The second template 2 is disposed on one side of the first template 1. Both the first template 1 and the second template 2 have two main channels 3 and two sets of side channels 4 on one side. The two main channels 3 and the two sets of side channels 4 are arranged opposite to each other. The side channels 4 are disposed on one side of the main channels 3 and are connected to the main channels 3. Both the first template 1 and the second template 2 have a confluence channel 5 on one side. Both main channels 3 are connected to the confluence channel 5. Both the first template 1 and the second template 2 have two auxiliary channels 6 on one side. The auxiliary channels 6 are connected to the main channels 3, the side channels 4 and the confluence channel 5. In this way, pressure can be dispersed by multiple channels.

[0024] Two external rings 7 are fixedly connected to one end of both the first template 1 and the second template 2. The two sets of external rings 7 correspond to the two sets of main channels 3 respectively. The two sets of external rings 7 are arranged opposite to each other for inputting materials.

[0025] An output head 12 is provided between the first groove 104 and the second groove 204. The output head 12 has two sets of snap-fit ​​grooves 13 on its outside. The output head 12 is snapped and fixed by the two sets of snap-fit ​​grooves 13 and the two sets of snap-fit ​​rings 11. The output head 12 is used to output materials.

[0026] In use, the device is placed vertically to the ground, i.e., with the output head 12 facing downwards. It is then connected to an existing extruder through two sets of external rings 7. The plastic compatibilizer is melted and mixed through the extruder and then fed into two sets of main channels 3, dividing the material into two flow paths. The material then enters the confluence channel 5 and flows into the output head 12 for output. During this process, the heating device in the prior art heats the first template 1, the second template 2, and the material inside. Heating increases the internal pressure. At this time, due to the increased pressure, some material is squeezed into the side channel 4 and then flows into the confluence channel 5 through the auxiliary channel 6. By increasing the number of channels, the pressure can be reduced.

[0027] Increasing the number of flow channels can reduce pressure through the diversion effect. The principle is to disperse the material to more paths, reduce the flow rate of a single flow channel, thereby reducing the flow velocity and pressure gradient. At the same time, the multi-channel design can disperse shear stress and avoid local high pressure.

[0028] It should be noted that when the device does not require heating to increase material flowability, the internal and external pressures are balanced. Since the side channel 4 is arc-shaped and the device is placed vertically downward, the material does not have enough pressure to drive it through the bend of the side channel 4 and stops at the front of the side channel 4. Example 2

[0029] Please see Figures 1-5 This utility model provides a technical solution:

[0030] Unlike Embodiment 1, the first template 1 has two first grooves 101 on one side, which are arranged opposite to each other. The first template 1 also has a second groove 102 on one side, which is located between the two first grooves 101. The first grooves 101 and the second groove 102 have the same depth.

[0031] Two first inserts 201 are fixedly connected to one side of the second template 2. The two first inserts 201 are arranged opposite to each other and are respectively fitted into two first grooves 101. A second insert 202 is fixedly connected to one side of the second template 2. The second insert 202 is arranged between the two first inserts 201 and is fitted into the second groove 102. This is used to quickly position the first template 1 and the second template 2, thereby sealing the first template 1 and the second template 2.

[0032] The first template 1 has a through-hole first circular groove 103. A connecting pipe 8 is fixedly connected to one side of the first template 1. The second template 2 has a through-hole second circular groove 203. The connecting pipe 8 can extend into the second circular groove 203. The diameter of the connecting pipe 8 is smaller than the inner diameter of the second circular groove 203, so it can extend into the second circular groove 203.

[0033] The first template 1 and the second template 2 are respectively provided with a first groove 104 and a second groove 204 on one side. The first groove 104 and the second groove 204 are arranged opposite to each other. A first sealing strip 9 and a second sealing strip 10 are fixedly connected in both the first groove 104 and the second groove 204. Two snap-fit ​​rings 11 are fixedly connected in both the first groove 104 and the second groove 204. The two sets of first sealing strips 9, second sealing strips 10 and snap-fit ​​rings 11 are arranged opposite to each other. An output head 12 is provided between the first groove 104 and the second groove 204. Two sets of snap-fit ​​grooves 13 are provided on the outside of the output head 12. The output head 12 is snapped and fixed by the two sets of snap-fit ​​grooves 13 and the two sets of snap-fit ​​rings 11. By setting the first sealing strip 9 and the second sealing strip 10, the output head 12 can be sealed. By setting the snap-fit ​​grooves 13 and the snap-fit ​​rings 11, the output head 12 can be quickly installed and fixed.

[0034] By setting the first groove 101 and the first insert 201, as well as the second groove 102 and the second insert 202, the first template 1 and the second template 2 can be quickly positioned. Their tight fit can seal the first template 1 and the second template 2. At the same time, the connecting tube 8 can be embedded in the second circular groove 203 to further improve the rapid positioning effect. Then, the first template 1 and the second template 2 can be fixed by the first circular groove 103, the second circular groove 203, and the bolts of the prior art. In short, the first template 1, the second template 2, and the output head 12 can be quickly disassembled and assembled, which is convenient for maintenance, replacement, and cleaning.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A compatibilizer melt co-extrusion die, comprising a first die plate (1), characterized in that: It also includes: The second template (2) is set on one side of the first template (1). Two main channels (3) and two sets of side channels (4) are opened on one side of the first template (1) and the second template (2). The two main channels (3) and the two sets of side channels (4) are arranged opposite to each other. The side channels (4) are set on one side of the main channel (3). The side channels (4) are connected to the main channel (3). A confluence channel (5) is opened on one side of the first template (1) and the second template (2). The two main channels (3) are connected to the confluence channel (5). Two auxiliary channels (6) are opened on one side of the first template (1) and the second template (2). The auxiliary channels (6) are connected to the main channel (3), the side channels (4) and the confluence channel (5).

2. The compatibilizer melt-fusion co-extrusion die of claim 1, wherein: Two first slots (101) are provided on one side of the first template (1), and the two first slots (101) are arranged opposite to each other. A second slot (102) is provided on one side of the first template (1), and the second slot (102) is arranged between the two first slots (101).

3. The compatibilizer melt-fusion co-extrusion die of claim 1, wherein: Two first inserts (201) are fixedly connected to one side of the second template (2). The two first inserts (201) are arranged opposite to each other and are respectively fitted into two first grooves (101). A second insert (202) is fixedly connected to one side of the second template (2). The second insert (202) is arranged between the two first inserts (201) and is fitted into the second groove (102) for quickly positioning the first template (1) and the second template (2) and thus sealing the first template (1) and the second template (2).

4. The compatibilizer melt-fusion co-extrusion die of claim 1, wherein: Two external rings (7) are fixedly connected to one end of the first template (1) and the second template (2). The two sets of external rings (7) correspond to two sets of main channels (3) respectively. The two sets of external rings (7) are arranged opposite to each other for inputting materials.

5. The compatibilizer melt-fusion co-extrusion die of claim 1, wherein: The first template (1) has a through-hole (103) and a connecting pipe (8) is fixedly connected to one side of the first template (1). The second template (2) has a through-hole (203) for connecting and fixing the first template (1) and the second template (2).

6. The compatibilizer melt fusing co-extrusion die of claim 1, wherein: The first template (1) and the second template (2) are respectively provided with a first groove (104) and a second groove (204) on one side. The first groove (104) and the second groove (204) are arranged opposite to each other. A first sealing strip (9) and a second sealing strip (10) are fixedly connected in the first groove (104) and the second groove (204). Two snap rings (11) are fixedly connected in the first groove (104) and the second groove (204). The two sets of first sealing strips (9), second sealing strips (10) and snap rings (11) are arranged opposite to each other.

7. The compatibilizer melt-fusion co-extrusion die of claim 6, wherein: An output head (12) is provided between the first groove (104) and the second groove (204). The output head (12) has two sets of snap-fit ​​grooves (13) on its outside. The output head (12) is snapped and fixed by the two sets of snap-fit ​​grooves (13) and the two sets of snap-fit ​​rings (11).

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