Double-screw extruder for nylon

Abstract

The utility model discloses a twin-screw extruder for nylon, which relates to the technical field of extruders and comprises a rack, a twin-screw extruder body is fixedly mounted at the top of the rack, an extrusion head is arranged at the output end of the twin-screw extruder body, and a fixing component and a fixing and limiting component are arranged between the twin-screw extruder body and the extrusion head; according to the technical scheme provided by the utility model, the fixing assembly is arranged, specifically, the extrusion head is in butt joint with the twin-screw extruder body, then the first clamping block is aligned with the first clamping groove, the fixing screw is pulled through the hexagonal grip, and the fixing screw rotates around the connecting position of the first fixing head and the twin-screw extruder body; the supporting block pulls the hanging rod to tension the extrusion head, then one end of the hexagonal grip is attached to the side wall of the twin-screw extruder body to be automatically locked, and during disassembly, the hexagonal grip is pulled outwards, so that the second clamping block of the hanging rod is inserted into the second clamping groove, the extrusion head is taken down by means of force, and the extrusion head is convenient to assemble and disassemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to extruder technical field especially relates to a double screw extruder for nylon. BACKGROUND

[0002] Polyamide is commonly known as nylon, density 1.15g / cm3, is the thermoplastic resin total on the molecular main chain contains repeating amide group -- [NHCO] --, including aliphatic PA, aliphatic-aromatic PA and aromatic PA. By the famous chemist of the United States, carloss and his research team invention. The existing nylon production adopts the mode of screw extruder, and the extrusion molding process has the characteristics such as high productivity, strong adaptability, wide application, large proportion of output, is one of the most varied molding processing methods in polymer processing field. Extrusion molding process makes high polymer solution (or viscous fluid) through the die of certain shape under the extrusion and shearing action of extruder screw.

[0003] However, at present, when processing different nylon products, different extrusion heads need to be replaced, but since the current extrusion head and extruder body are usually fixed by bolts, a lot of time will be wasted in the process of replacing and installing the extrusion head, and therefore improvement is needed. UTILITY MODEL CONTENTS

[0004] The utility model wants to overcome the technical problems of prior art and provide a double screw extruder for nylon, to solve the problem that different extrusion heads need to be replaced when processing different nylon products in the prior art, but since the current extrusion head and extruder body are usually fixed by bolts, and since the extrusion head is difficult to remove due to long-time installation, a lot of time will be wasted in the process of replacing and installing the extrusion head.

[0005] Therefore, the utility model provides a double screw extruder for nylon, which comprises a rack, a double screw extruder body fixedly installed on the top of the rack, an extrusion head arranged at the output end of the double screw extruder body, and a fixing assembly and a fixing limiting assembly arranged between the double screw extruder body and the extrusion head.

[0006] The fixed assembly comprises a first fixed head, a fixed screw rod, a hexagonal handle, a supporting block, a hanging rod, a first clamping block, a second fixed head, a slot, a first clamping groove, a second clamping block and a second clamping groove, one end of the first fixed head is rotationally connected to one side of the double-screw extruder body, one end of the fixed screw rod is rotationally connected to one end of the first fixed head, one end of the hexagonal handle is fixedly connected to one end of the fixed screw rod, the supporting block is movably installed on the outer wall of the fixed screw rod, one end of the hanging rod is rotationally connected to the upper and lower ends of the supporting block, the first clamping block is fixedly connected to the inner side of one end of the hanging rod, the second fixed head is fixedly installed on one side of the extrusion head, the slot is arranged in the middle of the second fixed head, the first clamping groove and the second clamping groove are respectively arranged on the front and rear sides of the slot, and the second clamping block is fixedly connected to the outer side of one end of the hanging rod.

[0007] Optionally, the fixed screw rod and the supporting block are in threaded engagement.

[0008] Optionally, the hexagonal handle is in the shape of a regular hexagon in cross section.

[0009] Optionally, the hanging rod is in the shape of L as a whole, and one end of the hanging rod is located inside the slot.

[0010] Optionally, the first clamping block and the first clamping groove are in matching shapes, and the second clamping block and the second clamping groove are in matching shapes.

[0011] Optionally, the fixed limiting assembly comprises a fixed lug and a limiting clamping block, one end of the fixed lug is fixedly connected to one side of the double-screw extruder body, and one end of the limiting clamping block is rotationally connected to one end of the fixed lug.

[0012] Optionally, one end of the limiting clamping block is sleeved on the outer wall of the fixed screw rod through the slot.

[0013] From the above technical solutions, it can be seen that the embodiments of the utility model have the following advantages:

[0014] 1. The double-screw extruder for nylon, by setting the fixed assembly, specifically, the extrusion head with the second fixed head is butt-jointed with the double-screw extruder body, then one end of the hanging rod is inserted into the slot so that the first clamping block is aligned with the first clamping groove, at this time, the fixed screw rod is pulled through the hexagonal handle, the fixed screw rod is rotated at the position where the first fixed head is connected with the double-screw extruder body, so that the supporting block pulls the hanging rod, the hanging rod is pulled tightly in cooperation with the second fixed head, then one end of the hexagonal handle is automatically locked against the sidewall of the double-screw extruder body, when disassembling, the hexagonal handle is pulled outward, the second clamping block of the hanging rod is inserted into the second clamping groove, so that the extrusion head is taken off from the body by leverage, the installation and disassembly of the extrusion head are facilitated.

[0015] 2, the utility model discloses a kind of double screw extruders for nylon, by setting fixed limiting component, specifically, after fixing extrusion head, limit stopper is clamped in the fixed screw outer wall set, fixed screw can be limited, avoid the vibration produced when working double screw extruder to make fixed screw pop outwards, to improve the fixed effect of extrusion head.

[0016] These features and advantages of the utility model will be disclosed in detail in the following specific embodiment, drawing. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model is further described below in connection with drawings:

[0018] Figure 1 For the utility model structure schematic diagram;

[0019] Figure 2 For the utility model plan view;

[0020] Figure 3 For the utility model fixed component structure explosion map;

[0021] Figure 4 For the utility model fixed head structure schematic diagram.

[0022] Reference signs: 1, rack;2, double screw extruder body;3, extrusion head;401, first fixed head;402, fixed screw;403, hexagonal handle;404, support block;405, hanging rod;406, first clamping block;407, second fixed head;408, slot;409, first clamping groove;410, second clamping block;411, second clamping groove;501, fixed lug;502, limit stopper. DETAILED DESCRIPTION

[0023] The technical scheme of the utility model embodiment is explained and described below in connection with the drawings of the utility model embodiment, but the following embodiment is only preferred embodiment of the utility model, not all.Based on the embodiment in implementation, other embodiments obtained by the person skilled in the art without making creative labor all belong to the protection scope of the utility model.

[0024] The double screw extruder for nylon of the utility model embodiment is specifically described below in connection with drawings.

[0025] Embodiment 1

[0026] For easy understanding, please refer to Figures 1 to 4The utility model provides an embodiment of a double screw extruder for nylon, which comprises a rack 1, a double screw extruder body 2 fixedly installed on the top of the rack 1, an extrusion head 3 arranged at the output end of the double screw extruder body 2, and a fixing assembly and a fixing limiting assembly arranged between the double screw extruder body 2 and the extrusion head 3.

[0027] The fixing assembly comprises a first fixing head 401, a fixing screw 402, a hexagonal handle 403, a supporting block 404, a hanging rod 405, a first clamping block 406, a second fixing head 407, a slot 408, a first clamping groove 409, a second clamping block 410 and a second clamping groove 411. One end of the first fixing head 401 is rotatably connected to one side of the double screw extruder body 2, one end of the fixing screw 402 is rotatably connected to one end of the first fixing head 401, one end of the hexagonal handle 403 is fixedly connected to one end of the fixing screw 402, the supporting block 404 is movably installed on the outer wall of the fixing screw 402, one end of the hanging rod 405 is rotatably connected to the upper and lower ends of the supporting block 404, the first clamping block 406 is fixedly connected to the inner side of one end of the hanging rod 405, the second fixing head 407 is fixedly installed on one side of the extrusion head 3, the slot 408 is arranged in the middle of the second fixing head 407, the first clamping groove 409 and the second clamping groove 411 are respectively arranged on the front and rear sides of the slot 408, and the second clamping block 410 is fixedly connected to the outer side of one end of the hanging rod 405. The fixing screw 402 is in threaded engagement with the supporting block 404, the cross-sectional shape of the hexagonal handle 403 is a regular hexagon, the overall shape of the hanging rod 405 is L-shaped, one end of the hanging rod 405 is located inside the slot 408, the shape of the first clamping block 406 matches that of the first clamping groove 409, and the shape of the second clamping block 410 matches that of the second clamping groove 411.

[0028] It should be noted that, by arranging the fixing screw 402, the supporting block 404, the hanging rod 405 and the second fixing head 407, when the extrusion head 3 with the second fixing head 407 is docked with the double screw extruder body 2 during installation, one end of the hanging rod 405 is inserted into the slot 408 so that the first clamping block 406 is aligned with the first clamping groove 409, the first clamping block 406 is clamped into the inner side of the first clamping groove 409, the fixing screw 402 is pulled by the hexagonal handle 403 at this time, the fixing screw 402 is rotated at the position where the first fixing head 401 is connected to the double screw extruder body 2, the supporting block 404 pulls the hanging rod 405, the hanging rod 405 is pulled in cooperation with the second fixing head 407 to tighten the extrusion head 3, one end of the hexagonal handle 403 is attached to the side wall of the double screw extruder body 2 at this time, the relative pulling force of the supporting block 404 and the hanging rod 405 on the fixing screw 402 is changed from the outer side of the fixing screw 402 to the side close to the double screw extruder body 2, and the fixing screw 402 is automatically locked under the limiting action of the side wall of the double screw extruder body 2. When disassembling, the hexagonal handle 403 is pulled outward, the second clamping block 410 of the hanging rod 405 is inserted into the second clamping groove 411, and the extrusion head 3 is removed from the double screw extruder body 2 by using the force, thereby facilitating the installation and disassembly of the extrusion head 3.

[0029] Embodiment 2

[0030] In some embodiments, as shown in Figure 1 The fixed limiting assembly includes a fixed lug 501 and a limiting block 502. The fixed lug 501 is fixedly connected to one side of the double-screw extruder body 2, and the limiting block 502 is rotatably connected to one end of the fixed lug 501. The limiting block 502 is sleeved on the outer wall of the fixed screw 402 through the notch.

[0031] It should be noted that the limiting block 502 is arranged to limit the fixed screw 402, so as to avoid the vibration of the double-screw extruder during work from causing the fixed screw 402 to pop out, thereby improving the fixing effect of the extrusion head 3.

[0032] Working principle: in use, the extrusion head 3 with the second fixed head 407 is connected to the double-screw extruder body 2, and then the hanging rod 405 is inserted into the insertion slot 408 so that the first clamping block 406 is aligned with the first clamping slot 409. The first clamping block 406 is clamped into the first clamping slot 409. At this time, the fixed screw 402 is pulled by the hexagonal handle 403, so that the fixed screw 402 rotates at the connection position of the first fixed head 401 and the double-screw extruder body 2, so that the supporting block 404 pulls the hanging rod 405, and the hanging rod 405 cooperates with the second fixed head 407 to pull the extrusion head 3 tightly. At this time, one end of the hexagonal handle 403 will be attached to the side wall of the double-screw extruder body 2. At this time, the relative pulling force of the supporting block 404 and the hanging rod 405 on the fixed screw 402 will be changed from the outside of the fixed screw 402 to the side close to the double-screw extruder body 2, and will be automatically locked under the limiting action of the side wall of the double-screw extruder body 2, and the limiting block 502 will be clamped on the outer wall of the fixed screw 402 to limit it. The fixing of the extrusion head 3 is completed. When disassembling, the hexagonal handle 403 is pulled outward, so that the second clamping block 410 of the hanging rod 405 is inserted into the second clamping slot 411, so as to take the extrusion head 3 from the double-screw extruder body 2 by force, facilitating the installation and disassembly of the extrusion head 3.

[0033] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some technical features. Such modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A twin-screw extruder for nylon, characterized in that: Includes a frame (1), on the top of the frame (1) a twin-screw extruder body (2) is fixedly installed, the output end of the twin-screw extruder body (2) is provided with an extrusion head (3), and a fixing component and a fixing limiting component are provided between the twin-screw extruder body (2) and the extrusion head (3); The fixing assembly includes a first fixing head (401), a fixing screw (402), a hexagonal handle (403), a support block (404), a hanging rod (405), a first locking block (406), a second fixing head (407), a slot (408), a first locking groove (409), a second locking block (410), and a second locking groove (411). One end of the first fixing head (401) is rotatably connected to one side of the twin-screw extruder body (2). One end of the fixing screw (402) is rotatably connected to one end of the first fixing head (401). One end of the hexagonal handle (403) is fixedly connected to the fixing screw (402). At one end, the support block (404) is movably installed on the outer wall of the fixing screw (402), and one end of the hanging rod (405) is rotatably connected to the upper and lower ends of the support block (404). The first locking block (406) is fixedly connected to the inner side of one end of the hanging rod (405). The second fixing head (407) is fixedly installed on one side of the extrusion head (3). The slot (408) is opened in the middle of the second fixing head (407). The first slot (409) and the second slot (411) are respectively opened on the front and rear sides of the slot (408). The second locking block (410) is fixedly connected to the outer side of one end of the hanging rod (405).

2. The twin-screw extruder for nylon according to claim 1, characterized in that: The fixing screw (402) and the support block (404) are engaged by threads.

3. A twin-screw extruder for nylon according to claim 1, characterized in that: The cross-sectional shape of the hexagonal grip (403) is a regular hexagon.

4. A twin-screw extruder for nylon according to claim 1, characterized in that: The hanging rod (405) is L-shaped in general, and one end of the hanging rod (405) is located inside the slot (408).

5. A twin-screw extruder for nylon according to claim 1, characterized in that: The first card block (406) matches the shape of the first card slot (409), and the second card block (410) matches the shape of the second card slot (411).

6. A twin-screw extruder for nylon according to claim 1, characterized in that: The fixed limiting component includes a fixed ear (501) and a limiting block (502). One end of the fixed ear (501) is fixedly connected to one side of the twin-screw extruder body (2), and one end of the limiting block (502) is rotatably connected to one end of the fixed ear (501).

7. A twin-screw extruder for nylon according to claim 6, characterized in that: One end of the limiting block (502) is fitted onto the outer wall of the fixing screw (402) through a slot.

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