Environment-friendly degradable color master batch extrusion molding die
By designing replaceable extrusion components, the problem of fixed forming size in existing molds was solved, enabling flexible adjustment of the forming size of color masterbatch materials and improving the flexibility and convenience of mold use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN LEJIA PLASTIC PROD CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-06-09
Smart Images

Figure CN224334995U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of color masterbatch extrusion processing technology, specifically to an environmentally friendly biodegradable color masterbatch extrusion molding die. Background Technology
[0002] Color masterbatch refers to a plastic colorant made by dispersing a high proportion of pigments or additives with thermoplastic resin. The resin used has good wetting and dispersing properties for the colorant and good compatibility with the material being colored. In the production and processing of color masterbatch, the molten raw material needs to be extruded into strips through an extruder, and then pelletized.
[0003] The extrusion molding dies of existing extruders have fixed forming dimensions, which means that the size that an extrusion molding die can form is relatively limited. It is impossible to flexibly adjust the forming size according to actual usage requirements, resulting in poor flexibility in the use of extrusion molding dies. Utility Model Content
[0004] The purpose of this invention is to provide an environmentally friendly biodegradable color masterbatch extrusion molding die to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] This utility model provides an environmentally friendly biodegradable color masterbatch extrusion molding die, including an extrusion molding die head, an external threaded pipe fixedly connected to the right side of the extrusion molding die head, a tapered guide hole opened on the extrusion molding die head, and a replaceable extrusion component installed on the left side of the extrusion molding die head.
[0007] The replaceable extrusion assembly includes a mounting hole on the left side of the extrusion die, which communicates with a tapered guide hole. A mounting tube is movably inserted into the mounting hole, and a first forming head is threaded onto the mounting tube. A second forming head is threaded onto the first forming head, and a third forming head is threaded onto the second forming head. The inner diameters of the first, second, and third forming heads gradually decrease. A retaining plate is fixedly fitted onto the outside of the mounting tube. Two studs are symmetrically fixedly connected to the left sidewall of the extrusion die, and the retaining plate is located between the two studs. A semi-circular locking plate is threaded onto each of the two studs, and two semi-circular slots are symmetrically formed on the retaining plate. The two semi-circular locking plates are respectively engaged in the two semi-circular slots.
[0008] Preferably, two L-shaped limiting blocks are fixedly connected to the side wall of the extrusion die head near the card plate, the two L-shaped limiting blocks are located at opposite corners of the card plate, and the card plate is located between the two L-shaped limiting blocks.
[0009] Preferably, a push rod is fixedly connected to the side of the semi-circular locking plate away from the extrusion die.
[0010] Preferably, a plurality of positioning posts are fixedly connected to the side of the extrusion die head near the card plate, and positioning holes are provided at the four corners of the card plate, through which the positioning posts penetrate the card plate.
[0011] Preferably, the outer walls of the first forming head, the second forming head, and the third forming head are each symmetrically provided with two grooves.
[0012] Preferably, the extrusion die head is provided with an installation positioning groove.
[0013] Preferably, a fixing post is fixedly connected to the extrusion die head, and a rectangular rod is fixedly connected to the end of the fixing post away from the extrusion die head.
[0014] Preferably, the push rod has multiple semi-circular grooves evenly distributed on its wall.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This invention features a replaceable extrusion assembly. During the extrusion molding of masterbatch material, since the first, second, and third molding heads are of different sizes, the integrated molding size of the masterbatch material can be adjusted by installing these three molding heads. Furthermore, by rotating the two semi-circular locking plates, the threaded engagement between the semi-circular locking plates and the studs allows the semi-circular locking plates to disengage from the semi-circular slots on the clamping plate, thus releasing the semi-circular locking plates from their limiting and fixing position on the clamping plate. Pulling the installation tube allows the replaceable extrusion assembly to be removed from the extrusion molding die, enabling quick replacement of different sized replaceable extrusion assemblies. This allows for rapid and flexible adjustment of the extrusion molding size of the masterbatch material according to actual usage requirements, effectively improving the flexibility of the extrusion molding die. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;
[0019] Figure 3 This is a top view of the present invention;
[0020] Figure 4 for Figure 3 Sectional view along the middle AA direction;
[0021] Figure 5 for Figure 4 A structural diagram of section B;
[0022] Figure 6 for Figure 1 A schematic diagram of the replaceable extrusion assembly.
[0023] In the diagram: 1. Extrusion die head; 2. External threaded tube; 3. Tapered guide hole; 4. Mounting hole; 5. Mounting tube; 6. First forming head; 7. Second forming head; 8. Third forming head; 9. Clamping plate; 10. Stud; 11. Semi-circular locking plate; 12. Semi-circular groove; 13. L-shaped limit block; 14. Push rod; 15. Positioning post; 16. Positioning hole; 17. Groove; 18. Mounting positioning groove; 19. Fixing post; 20. Rectangular rod; 21. Semi-circular groove. Detailed Implementation
[0024] 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.
[0025] Please see Figure 1-6 This utility model provides an environmentally friendly biodegradable color masterbatch extrusion molding die, including an extrusion molding die head 1, an external threaded tube 2 fixedly connected to the right side of the extrusion molding die head 1, a tapered guide hole 3 opened on the extrusion molding die head 1, and a replaceable extrusion assembly installed on the left side of the extrusion molding die head 1.
[0026] The replaceable extrusion assembly includes a mounting hole 4 on the left side of the extrusion die 1, which communicates with a tapered guide hole 3. A mounting tube 5 is movably inserted into the mounting hole 4. A first forming head 6 is threaded into the mounting tube 5. A second forming head 7 is threaded into the first forming head 6. A third forming head 8 is threaded into the second forming head 7. The inner diameters of the first forming head 6, the second forming head 7, and the third forming head 8 gradually decrease. A retaining plate 9 is fixedly fitted onto the outside of the mounting tube 5. Two studs 10 are symmetrically fixedly connected to the left sidewall of the extrusion die 1. The retaining plate 9 is located between the two studs 10. A semi-circular locking plate 11 is threaded onto each of the two studs 10. Two semi-circular slots 12 are symmetrically opened on the retaining plate 9. The two semi-circular locking plates 11 are respectively inserted into the two semi-circular slots 12.
[0027] In the above embodiments, during the extrusion molding of the masterbatch material, since the sizes of the first molding head 6, the second molding head 7, and the third molding head 8 are different, the size of the integrated molding of the masterbatch material can be adjusted by installing the first molding head 6, the second molding head 7, and the third molding head 8. Furthermore, by rotating the two semi-circular locking plates 11, the semi-circular locking plates 11 are disengaged from the semi-circular slots 12 on the clamping plate 9 through the threaded engagement between the semi-circular locking plates 11 and the studs 10. This releases the semi-circular locking plates 11 from limiting and fixing the clamping plate 9. By pulling the mounting tube 5, the replaceable extrusion assembly can be removed from the extrusion molding die head 1, thereby enabling the quick replacement of replaceable extrusion assemblies of different sizes. The extrusion molding size of the masterbatch material can be quickly and flexibly adjusted according to actual usage requirements, effectively improving the flexibility of the extrusion molding die.
[0028] Two L-shaped limiting blocks 13 are fixedly connected to the side wall of the extrusion die 1 near the clamping plate 9. The two L-shaped limiting blocks 13 are located at opposite corners of the clamping plate 9, and the clamping plate 9 is located between the two L-shaped limiting blocks 13. The two L-shaped limiting blocks 13 can limit the clamping plate 9, thereby improving the stability of the installation of the replaceable extrusion assembly.
[0029] A push rod 14 is fixedly connected to the side of the semi-circular locking plate 11 away from the extrusion die 1. Pushing the push rod 14 can drive the semi-circular locking plate 11 to rotate, which improves the convenience of operating the semi-circular locking plate 11.
[0030] The extrusion die head 1 is fixedly connected to a plurality of positioning posts 15 on the side near the card plate 9. Positioning holes 16 are provided at the four corners of the card plate 9. The positioning posts 15 penetrate the card plate 9 through the positioning holes 16. The positioning posts 15 and the positioning holes 16 cooperate with each other to limit and position the card plate 9, thereby improving the stability of the card plate 9 installation.
[0031] The outer walls of the first forming head 6, the second forming head 7, and the third forming head 8 are symmetrically provided with two grooves 17. The grooves 17 can improve the convenience of operation when the first forming head 6, the second forming head 7, and the third forming head 8 rotate, and improve the convenience of disassembling and assembling the first forming head 6, the second forming head 7, and the third forming head 8.
[0032] The extrusion die 1 is provided with an installation positioning groove 18, which facilitates the positioning of the extrusion die 1 and improves the accuracy and convenience of the extrusion die 1 during installation.
[0033] A fixing post 19 is fixedly connected to the extrusion molding die 1. A rectangular rod 20 is fixedly connected to one end of the fixing post 19 away from the extrusion molding die 1. By pushing the rectangular rod 20, the extrusion molding die 1 can be rotated, which improves the convenience of disassembling and assembling the extrusion molding die 1.
[0034] The push rod 14 has a plurality of semi-circular grooves 21 evenly distributed on its wall. The semi-circular grooves 21 can improve the anti-slip performance of the push rod 14 and improve the comfort of using the push rod 14.
[0035] Working principle: During the extrusion molding of color masterbatch material, since the dimensions of the first molding head 6, the second molding head 7, and the third molding head 8 are different, the integrated molding size of the color masterbatch material can be adjusted by installing the first molding head 6, the second molding head 7, and the third molding head 8. By rotating the two semi-circular locking plates 11, the semi-circular locking plates 11 are disengaged from the semi-circular slots 12 on the clamping plate 9 through the threaded engagement between the semi-circular locking plates 11 and the studs 10. This releases the semi-circular locking plates 11 from limiting and fixing the clamping plate 9. By pulling the installation tube 5, the replaceable extrusion component can be removed from the extrusion molding die head 1, thereby enabling quick replacement of replaceable extrusion components of different sizes. The extrusion molding size of the color masterbatch material can be quickly and flexibly adjusted according to actual usage needs, effectively improving the flexibility of the extrusion molding die.
[0036] 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.
[0037] 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, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An extrusion die for an environmentally friendly biodegradable masterbatch, comprising an extrusion die head (1), characterized in that: The right side of the extrusion die (1) is fixedly connected to an external threaded pipe (2), the extrusion die (1) is provided with a tapered guide hole (3), and a replaceable extrusion assembly is installed on the left side of the extrusion die (1). The replaceable extrusion assembly includes a mounting hole (4) on the left side of the extrusion die (1), the mounting hole (4) communicating with a tapered guide hole (3), a mounting tube (5) being movably inserted into the mounting hole (4), a first forming head (6) being threaded into the mounting tube (5), a second forming head (7) being threaded into the first forming head (6), and a third forming head (8) being threaded into the second forming head (7). The first forming head (6), the second forming head (7), and the third forming head (8) are connected in a continuous manner. The inner diameter of the forming head (8) gradually decreases. A retaining plate (9) is fixedly sleeved on the outside of the mounting tube (5). Two studs (10) are symmetrically fixedly connected to the left side wall of the extrusion forming die (1). The retaining plate (9) is located between the two studs (10). A semi-circular locking plate (11) is threaded on both studs (10). Two semi-circular slots (12) are symmetrically opened on the retaining plate (9). The two semi-circular locking plates (11) are respectively inserted into the two semi-circular slots (12).
2. The extrusion molding die for an environmentally friendly biodegradable color masterbatch according to claim 1, characterized in that: Two L-shaped limiting blocks (13) are fixedly connected to the side wall of the extrusion die (1) near the card plate (9). The two L-shaped limiting blocks (13) are located at opposite corners of the card plate (9), and the card plate (9) is located between the two L-shaped limiting blocks (13).
3. The extrusion molding die for an environmentally friendly biodegradable color masterbatch according to claim 2, characterized in that: A push rod (14) is fixedly connected to the side of the semi-circular locking plate (11) away from the extrusion die (1).
4. The extrusion molding die for an environmentally friendly biodegradable color masterbatch according to claim 3, characterized in that: The extrusion die (1) is fixedly connected to a plurality of positioning posts (15) on the side near the card plate (9). Positioning holes (16) are provided at the four corners of the card plate (9). The positioning posts (15) penetrate the card plate (9) through the positioning holes (16).
5. The extrusion molding die for an environmentally friendly biodegradable masterbatch according to claim 4, characterized in that: The outer walls of the first forming head (6), the second forming head (7) and the third forming head (8) are symmetrically provided with two grooves (17).
6. The extrusion molding die for an environmentally friendly biodegradable masterbatch according to claim 5, characterized in that: The extrusion die (1) is provided with a mounting and positioning groove (18).
7. The extrusion molding die for an environmentally friendly biodegradable masterbatch according to claim 6, characterized in that: A fixing post (19) is fixedly connected to the extrusion die (1), and a rectangular rod (20) is fixedly connected to one end of the fixing post (19) away from the extrusion die (1).
8. The extrusion molding die for an environmentally friendly biodegradable color masterbatch according to claim 7, characterized in that: The push rod (14) has multiple semi-circular grooves (21) evenly distributed on its rod wall.