Adjustable porous extruder head

Abstract

The utility model relates to the technical field of extruders, in particular to an adjustable porous extruder head, which comprises a fixed head fixedly connected with an extruder, and a movable head arranged above the fixed head, an up-adjusting assembly used for up-adjusting the pressing block at the bottom of the movable machine head and a down-adjusting assembly used for down-adjusting the pressing block at the bottom of the movable machine head are arranged above the movable machine head. The technical problems that due to the fact that the pressure of a multi-hole type mouth mold of an extruder head is different, the glue discharging speed is different, the glue discharging size is different, and the waste rate is high are solved.

Description

Technical Field

[0001] This utility model relates to the field of extruder technology, and in particular to an adjustable multi-hole extruder head. Background Technology

[0002] Extruders are common equipment in the rubber processing industry. They work by heating and mixing rubber compounds to make them fluid, and then extruding the rubber compounds from the die head through the extruder barrel under pressure.

[0003] Currently, extruders in the rubber processing industry mostly use multi-hole dies in conjunction with the extrusion chamber on the extruder head. However, because the extrusion pressure is higher in the middle of the extruder screw and lower on both sides, the extrusion pressure is uneven. This results in some holes of the die extruding rubber quickly and others slowly. The rubber extruded at higher speeds is coarser, while the rubber extruded at lower speeds is finer, which cannot meet the requirements for uniform size and leads to a high waste rate. Summary of the Invention

[0004] To address the shortcomings of the existing technology, an adjustable multi-hole extruder head is provided, which solves the technical problem of inconsistent extrusion sizes and high waste rate caused by different extrusion speeds due to different pressures in the multi-hole die of the extruder head.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is an adjustable multi-hole extruder head, including a fixed head fixedly connected to the extruder and a movable head disposed above the fixed head. Multiple pressure blocks are provided at the bottom of the movable head, and an upward adjustment component for adjusting the pressure blocks at the bottom of the movable head and a downward adjustment component for adjusting the pressure blocks at the bottom of the movable head are provided above the movable head.

[0006] The aforementioned adjustable multi-hole extruder head includes an upper adjustment component comprising upper adjustment screw holes provided on each pressure block, a through hole corresponding to each upper adjustment screw hole provided above the movable head, an upper adjustment bolt provided in the through hole, and an upper adjustment nut provided on the upper adjustment bolt.

[0007] The aforementioned adjustable multi-hole extruder head includes a down-adjustment assembly comprising down-adjustment screw holes on both sides of each up-adjustment bolt, and down-adjustment bolts disposed within the down-adjustment screw holes.

[0008] The aforementioned adjustable multi-hole extruder head has a washer located below the adjusting nut.

[0009] The aforementioned adjustable multi-hole extruder head has fixing screw holes for fixing the multi-hole die on both the fixed head and the movable head, and a support plate for supporting the multi-hole die on the fixed head.

[0010] The aforementioned adjustable multi-hole extruder head has a drive cylinder with an output shaft passing through the fixed head located below the fixed head.

[0011] The aforementioned adjustable multi-hole extruder head also includes a controller connected to the drive cylinder via a signal.

[0012] The beneficial effect of this utility model of an adjustable multi-hole extruder head is that by setting an upward adjustment component for raising the pressure block at the bottom of the movable die head and a downward adjustment component for lowering the pressure block at the bottom of the movable die head above the movable die head, the pressure of the extrusion can be controlled by adjusting the rise or fall of the pressure block, thereby making the extrusion pressure uniform and avoiding the high waste rate caused by the different extrusion sizes due to the different extrusion speed of the multi-hole die. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of Example 1;

[0014] Figure 2 This is a front view of the active machine head in Example 1;

[0015] Figure 3 This is a top view of the movable head in Example 1;

[0016] Figure 4 This is a top view of the pressure block in Example 1;

[0017] Figure 5 This is a schematic diagram of the structure of Example 2. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0019] Example 1

[0020] like Figure 1-4 As shown, an adjustable multi-hole extruder head includes a fixed head 1 fixedly connected to the extruder, and a movable head 2 located above the fixed head 1. Multiple pressure blocks 3 are provided at the bottom of the movable head 2. An upward adjustment assembly for raising the pressure blocks 3 at the bottom of the movable head 2, and a downward adjustment assembly for lowering the pressure blocks 3 at the bottom of the movable head 2, are provided above the movable head 2. Connecting bolts 12 are provided on the movable head 2 for connecting the fixed head 1 and the movable head 2.

[0021] The adjusting assembly includes adjusting screw holes 4 on each pressure block 3, and through holes 5 corresponding to each adjusting screw hole 4 above the movable head 2. Adjusting bolts 6 are installed in the through holes 5, and adjusting nuts 7 are installed on the adjusting bolts 6. A washer is provided below the adjusting nuts 7.

[0022] The lowering assembly includes lowering screw holes 8 provided on both sides of each uppering bolt 6, and lowering bolts 9 provided in the lowering screw holes 8.

[0023] The fixed head 1 and the movable head 2 are provided with fixing screw holes 13 for fixing the multi-hole die, and the fixed head 1 is provided with a support plate 10 for supporting the multi-hole die.

[0024] The usage method of this embodiment is as follows: When it is necessary to raise the pressure block, first rotate the upper adjusting bolt 6 to the bottom of the upper adjusting screw hole 4, and then rotate the upper adjusting nut 7 to raise the pressure block; when it is necessary to lower the pressure block, first separate the upper adjusting bolt 6 from the upper adjusting screw hole 4, and then rotate the lower adjusting bolt 9 to press the pressure block down. Adjusting the raising or lowering of the pressure block controls the dispensing pressure, thereby making the extrusion pressure uniform and avoiding the high waste rate caused by inconsistent dispensing size due to different dispensing speeds in multi-hole dies.

[0025] Example 2

[0026] The similarities between this embodiment and Embodiment 1 will not be repeated here. The differences are as follows: Figure 5 As shown, a drive cylinder 11 with an output shaft passing through the fixed machine head 1 is provided below the fixed machine head 1. A controller, which is a PLC, is also included and is signal-connected to the drive cylinder 11. By setting up the drive cylinder 11 and the controller, the automatic separation of the movable machine head 2 and the fixed machine head 1 is achieved, facilitating cleaning.

[0027] Of course, the above description is not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. An adjustable multi-hole extruder head, comprising a fixed head fixedly connected with an extruder, and a movable head arranged above the fixed head, a plurality of pressing blocks being arranged at the bottom of the movable head, characterized in that: The upper adjusting assembly is arranged above the movable head and is used for adjusting the upper position of the pressing block at the bottom of the movable head.

2. An adjustable multi-hole extruder head according to claim 1, characterized in that The upper adjusting assembly comprises upper adjusting screw holes arranged on each pressing block, through holes corresponding to the upper adjusting screw holes arranged above the movable head, upper adjusting bolts arranged in the through holes, and upper adjusting nuts arranged on the upper adjusting bolts.

3. An adjustable multi-hole extruder head according to claim 2, characterized in that The lower adjusting assembly comprises lower adjusting screw holes arranged on both sides of each upper adjusting bolt and lower adjusting bolts arranged in the lower adjusting screw holes.

4. An adjustable multi-hole extruder head according to claim 3, characterized in that A gasket is arranged below the upper adjusting nut.

5. An adjustable multi-hole extruder head according to claim 4, characterized in that A fixed screw hole for fixing the multi-hole die is arranged on the fixed head and the movable head, and a bearing plate for bearing the multi-hole die is arranged on the fixed head.

6. An adjustable multi-hole extruder head according to claim 5, characterized in that A driving cylinder corresponding to the output shaft is arranged below the fixed head.

7. An adjustable multi-hole extruder head according to claim 6, characterized in that A controller connected with the driving cylinder is further arranged.

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