Modified straw composite particle extruder die head

Abstract

The utility model discloses a modified straw composite particle extruder die head in the field of extruders, which comprises a base, a plurality of mounting holes are arranged on the periphery of the base, and a plurality of gradually-changed extrusion holes are arranged in the middle of the base. The number of the adjusting blocks is multiple, and the multiple adjusting blocks are sequentially arranged in a stacked mode from top to bottom and detachably installed at the lower end of the base; the adjusting blocks are detachably connected with each other; a plurality of gradient extrusion holes are also formed in each adjusting block; and the fixing mechanism is used for connecting and fixing the plurality of adjusting blocks and the base. According to the extruder die head with the design, the diameter size of extruded materials is adjustable, and the application range is wider.

Description

Technical Field

[0001] This utility model relates to the field of extruders, and in particular to a modified straw composite pellet extruder die. Background Technology

[0002] Modified straw composite pellets are granular materials made by combining straw with other materials through specific treatments. The main raw material is straw, such as wheat straw or corn straw, and thermoplastic plastics, such as polyethylene (PE) and polypropylene (PP), are added, along with some additives, including coupling agents, plasticizers, and lubricants. The preparation process involves: first, crushing and drying the straw, then subjecting it to modification treatments such as alkali treatment, acid treatment, and silane coupling agent treatment. Next, the modified straw is mixed with plastic pellets and additives in a certain proportion, melt-blended and extruded using a pellet extruder, and finally cooled and pelletized to produce modified straw composite pellets.

[0003] Currently, the diameter of the material extruded by the die head of a pellet extruder is fixed and can only be changed by replacing the die head with different specifications, which limits its applicability. Utility Model Content

[0004] The purpose of this invention is to provide a modified straw composite pellet extruder die head with adjustable extrusion material diameter and wider applicability.

[0005] The purpose of this utility model is achieved as follows: a modified straw composite pellet extruder die head, including a base, the outer periphery of which is provided with a plurality of mounting holes, and the middle part of which is provided with a plurality of gradient extrusion holes; an adjusting block, wherein there are a plurality of adjusting blocks, which are stacked sequentially from top to bottom and detachably installed at the lower end of the base; the adjusting blocks are detachably connected to each other; each adjusting block is also provided with a plurality of gradient extrusion holes; and a fixing mechanism, which is used to connect and fix the plurality of adjusting blocks to the base.

[0006] Compared with the prior art, the beneficial effects of this utility model are as follows: the extruder die head provided by this utility model has an adjustable diameter of the extruded material, and has a wider range of applications; specifically, multiple detachable adjusting blocks with different diameter gradient extrusion holes are stacked at the discharge end of the extruder die head, and the diameter of the extruded material can be adjusted by changing the number of stacked adjusting blocks.

[0007] As a preferred embodiment of this utility model, each of the above-mentioned adjusting blocks is provided with two mutually symmetrical connecting seats on its outer periphery, and the connecting seats are provided with connecting holes; the above-mentioned fixing mechanism includes two positioning screws symmetrically arranged at the lower end of the base and corresponding to the connecting holes, and also includes fixing nuts arranged on the positioning screws.

[0008] As a preferred embodiment of this utility model, the aforementioned fixing mechanism includes several docking components, each of the aforementioned adjusting blocks is provided with a docking component, and the aforementioned docking component includes two docking units; each of the aforementioned docking units includes a plug-in plate, a plug-in seat disposed at the lower end of the plug-in plate, and a locking component disposed on the outside of the plug-in seat for locking and fixing the corresponding plug-in plate; the aforementioned plug-in plate is provided with a plug-in hole that cooperates with the locking component, and the aforementioned plug-in seat is provided with a plug-in groove that cooperates with the corresponding plug-in plate; the lower end of the aforementioned base is provided with two mutually symmetrical fixing seats, the aforementioned fixing seats are provided with fixing grooves that cooperate with the corresponding plug-in plates, and the outer side of the aforementioned fixing seats is also provided with a locking component for locking and fixing the corresponding plug-in plate.

[0009] Furthermore, the aforementioned locking assembly includes a housing, which is detachably mounted on a fixed base or a plug-in base; a latch, which is slidably mounted on the fixed base or plug-in base, with its outer end slidingly engaged with the inner wall of the housing and its inner end engaging with a corresponding plug-in hole; a pull rod that penetrates the housing and slidably engages with the outer end of the latch, and a handle that is provided at the outer end of the pull rod; and a locking spring located inside the housing, with its two ends abutting against the latch and the housing, respectively.

[0010] Furthermore, the lower ends of the base and the adjusting block are provided with positioning protrusions and sealing grooves, and sealing rings are provided in the sealing grooves; the upper ends of the adjusting blocks are provided with positioning grooves that cooperate with the positioning protrusions. Attached Figure Description

[0011] Figure 1 This is a cross-sectional structural diagram of Embodiment 1 of the present utility model.

[0012] Figure 2 This is a bottom view of the structure of Embodiment 1 of this utility model.

[0013] Figure 3 for Figure 1 A magnified view of a portion of point A in the middle.

[0014] Figure 4 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0015] Figure 5 This is a bottom view of the structure of Embodiment 2 of this utility model.

[0016] Figure 6 This is a schematic diagram of the docking structure of the docking unit described in Embodiment 2 of this utility model.

[0017] The components include: 1. Base, 1a. Mounting hole, 2. Adjusting block, 3. Gradient extrusion hole, 4. Connecting seat, 4a. Connecting hole, 5. Positioning screw, 6. Fixing nut, 7. Fixing seat, 7a. Fixing groove, 8. Plug plate, 8a. Plug hole, 9. Plug seat, 9a. Plug groove, 10. Housing, 11. Locking tongue, 11a. Pull rod, 11b. Handle, 12. Locking spring, 13. Positioning protrusion, 14. Positioning groove, 15. Sealing groove, 15a. Sealing ring, and 16. Locking assembly. Detailed Implementation

[0018] The above-mentioned and other technical features and advantages of this utility model will be described in more detail below with reference to the accompanying drawings.

[0019] Example 1

[0020] Combined with appendix Figure 1-3 As shown, a modified straw composite pellet extruder die head includes a base 1 with several mounting holes 1a on its outer periphery and several gradient extrusion holes 3 in its middle; several adjusting blocks 2 arranged in a stacked manner from top to bottom and detachably mounted on the lower end of the base 1; the adjusting blocks 2 are detachably connected to each other; each adjusting block 2 is also provided with several gradient extrusion holes 3; and a fixing mechanism for connecting and fixing the adjusting blocks 2 to the base 1. It should be noted that the gradient extrusion holes 3 at the same position on adjacent adjusting blocks 2 are gradually continuous and smoothly transitioned.

[0021] Each of the above-mentioned adjusting blocks 2 has two mutually symmetrical connecting seats 4 on its outer periphery, and the connecting seats 4 have connecting holes 4a inside; the above-mentioned fixing mechanism includes two positioning screws 5 symmetrically arranged at the lower end of the base 1 and corresponding to the connecting holes 4a, and also includes fixing nuts 6 arranged on the positioning screws 5.

[0022] The lower ends of the base 1 and the adjusting block 2 are provided with positioning protrusions 13 and sealing grooves 15, and sealing rings 15a are provided in the sealing grooves 15; the upper ends of the adjusting blocks 2 are provided with positioning grooves 14 that cooperate with the positioning protrusions 13. This design allows for a tighter fit between the adjusting blocks 2 and between the adjusting blocks 2 and the base 1, making leakage less likely.

[0023] When adjusting the diameter of the extruded material,

[0024] First, determine the diameter of the material to be extruded according to the requirements;

[0025] Next, the diameter of the lower end of the gradient extrusion hole 3 is determined based on this, and the adjustment block 2 that meets the requirements is found.

[0026] Then, align the positioning screw 5 and slide several adjusting blocks 2 onto the base 1 in sequence through the connecting hole 4a until the adjusting block 2 with the required diameter at the lower end of the gradient extrusion hole 3 is reached.

[0027] Finally, install and tighten the fixing nut 6 to complete the locking and fixing of the adjusting block 2;

[0028] It should be noted that when it is necessary to disassemble the adjusting block 2, simply insert the fixing nut 6.

[0029] Example 2

[0030] Combined with appendix Figure 4-6 As shown, Example 2 is similar to Example 1, except that:

[0031] The aforementioned fixing mechanism includes several docking components. Each of the aforementioned adjusting blocks 2 is provided with a docking component, and the aforementioned docking components include two docking units. Each of the aforementioned docking units includes a plug plate 8, a plug seat 9 disposed at the lower end of the plug plate 8, and a locking component 16 disposed on the outside of the plug seat 9 for locking and fixing the corresponding plug plate 8. The aforementioned plug plate 8 is provided with a plug hole 8a that cooperates with the locking component 16, and the aforementioned plug seat 9 is provided with a plug groove 9a that cooperates with the corresponding plug plate 8. The lower end of the aforementioned base 1 is provided with two mutually symmetrical fixing seats 7. The aforementioned fixing seats 7 are provided with fixing grooves 7a that cooperate with the corresponding plug plate 8, and the outer side of the aforementioned fixing seats 7 is also provided with a locking component 16 for locking and fixing the corresponding plug plate 8.

[0032] The locking assembly 16 includes a housing 10, which is detachably mounted on a fixed base 7 or a plug-in base 9; a locking tongue 11, which is slidably mounted on the fixed base 7 or the plug-in base 9, with its outer end slidingly engaged with the inner wall of the housing 10 and its inner end engaging with a corresponding plug-in hole 8a; a pull rod 11a that penetrates the housing 10 and is slidably engaged with it, and a handle 11b at the outer end of the pull rod 11a; and a locking spring 12, which is located inside the housing 10, with its two ends abutting against the locking tongue 11 and the housing 10 respectively; it should be noted that the housing 10 is fixed to the fixed base 7 or the plug-in base 9 by a flange.

[0033] It should be noted that in the extruder die head described in Embodiment 2, the adjusting blocks 2 are connected and fixed sequentially, making installation more convenient. This is suitable for situations where the extrusion diameter variation requirement is small, the number of adjusting blocks 2 is small, and the thickness of a single adjusting block 2 is relatively thick. In contrast, in the extruder die head described in Embodiment 1, the adjusting blocks 2 are slidably stacked and then fixed together. This is relatively complex to install and is suitable for situations where the extrusion diameter variation requirement is large, the number of adjusting blocks 2 is large, and the thickness of a single adjusting block 2 is relatively thin.

[0034] When adjusting the diameter of the extruded material,

[0035] First, determine the diameter of the material to be extruded according to the requirements;

[0036] Next, the diameter of the lower end of the gradient extrusion hole 3 is determined based on this, and the adjustment block 2 that meets the requirements is found.

[0037] Finally, align the fixing groove 7a or the insertion groove 9a, and slide several adjusting blocks 2 onto the base 1 in sequence until the adjusting block 2 with the required lower diameter of the gradient extrusion hole 3 is reached.

[0038] It should be noted that when installing the adjusting block 2, the plug plate 8 on the adjusting block 2 needs to be inserted into the corresponding fixing slot 7a or plug slot 9a. As the plug plate 8 is inserted, the locking tongue 11 gradually retracts. When the plug plate 8 is fully inserted, the plug hole 8a is directly opposite the locking tongue 11. After the locking tongue 11 loses the support of the plug plate 8, it extends into the plug hole 8a, thereby completing the locking and fixing of the plug plate 8.

[0039] When it is necessary to disassemble the adjusting block 2, simply pull the handle 11b, and the locking tongue 11 will retract through the pull rod 11a. The locking tongue 11 will disengage from the insertion hole 8a, and the corresponding adjusting block 2 can then be removed directly.

[0040] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A modified straw composite pellet extruder die head, characterized in that: The extruder die includes The base (1) has several mounting holes (1a) on its outer periphery and several gradually extruding holes (3) in its middle part. Adjustment block (2), there are several adjustment blocks (2), the several adjustment blocks (2) are stacked from top to bottom and are detachably installed at the lower end of the base (1); the adjustment blocks (2) are detachably connected to each other; each adjustment block (2) is also provided with several gradient extrusion holes (3). A fixing mechanism is used to connect and fix a plurality of adjusting blocks (2) to the base (1).

2. The modified straw composite pellet extruder die head according to claim 1, characterized in that: Each of the adjustment blocks (2) has two symmetrical connecting seats (4) on its outer periphery, and the connecting seats (4) have connecting holes (4a) inside. The fixing mechanism includes two positioning screws (5) symmetrically arranged at the lower end of the base (1) and corresponding to the connection hole (4a), and also includes a fixing nut (6) arranged on the positioning screws (5).

3. The modified straw composite pellet extruder die head according to claim 1, characterized in that: The fixing mechanism includes several docking components. Each of the adjusting blocks (2) is provided with a docking component. The docking component includes two docking units. Each docking unit includes a plug plate (8), a plug seat (9) provided at the lower end of the plug plate (8), and a locking component (16) provided on the outside of the plug seat (9) for locking and fixing the corresponding plug plate (8). The plug plate (8) is provided with a plug hole (8a) that cooperates with the locking component (16), and the plug seat (9) is provided with a plug groove (9a) that cooperates with the corresponding plug plate (8). The base (1) has two symmetrically arranged fixing seats (7) at its lower end. The fixing seats (7) have fixing grooves (7a) that cooperate with the corresponding plug-in plates (8). The fixing seats (7) also have locking components (16) on their outer sides for locking and fixing the corresponding plug-in plates (8).

4. The modified straw composite pellet extruder die head according to claim 3, characterized in that: The locking component (16) includes Housing (10), which is detachably mounted on a fixed base (7) or a plug-in base (9); The locking tongue (11) is slidably mounted on the fixed base (7) or the plug-in base (9), with its outer end slidingly engaged with the inner wall of the housing (10) and its inner end engaging with the corresponding plug-in hole (8a); the outer end of the locking tongue (11) is provided with a pull rod (11a) that penetrates the housing (10) and is slidably engaged with it, and the outer end of the pull rod (11a) is provided with a handle (11b). Locking spring (12) is located inside housing (10), with its two ends abutting against locking tongue (11) and housing (10) respectively.

5. A modified straw composite pellet extruder die according to any one of claims 1 to 4, characterized in that: The lower ends of the base (1) and the adjusting block (2) are provided with positioning protrusions (13) and sealing grooves (15), and sealing rings (15a) are provided in the sealing grooves (15); the upper ends of the adjusting block (2) are provided with positioning grooves (14) that cooperate with the positioning protrusions (13).

Images