Screw sleeve structure of extruder

Abstract

The utility model relates to the technical field of mechanical engineering, and discloses an extruder screw sleeve structure which comprises a sealing assembly, a sealing piece, a sealing plate, a toothed plate, a gear ring and a driving assembly, the toothed plate is fixed on one side of the sealing plate, the gear ring is arranged on one side of the toothed plate, the toothed plate is meshed with the gear ring, and the driving assembly is connected with the sealing piece. And the sealing part is arranged on the sealing part. The screw sleeve has the advantages that one end of the screw sleeve can be sealed when the screw sleeve is not used, the sealed end of the screw sleeve can effectively prevent dust, chippings, fibers and other impurities from entering the screw sleeve, the impurities possibly exist in a large number in the production environment in the storage and idle period, if the impurities enter the screw sleeve, the impurities can be mixed into plastic materials in the next use process, and the plastic materials cannot be damaged. And one end of the screw sleeve is closed, so that the inside of the screw sleeve can be kept in a relatively clean state all the time, and good conditions are provided for next use.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical engineering technical field, especially a kind of extruder screw sleeve structure. BACKGROUND

[0002] Screw sleeve provides a containing and moving space for plastic, rubber and other materials, material enters screw sleeve from feed inlet, under the rotation of screw, it moves forward along the inner wall of screw sleeve, is gradually transported to the head part of extruder, prepares for subsequent extrusion molding, but one end of screw sleeve is open when not in use, the open end is easy to make dust, chippings and other impurities enter the interior of screw sleeve, when using screw sleeve to extrude again, these impurities can mix into plastic material, affect the quality of extruded product, make product appear black dot, flaw and other defects, reduce the appearance quality and performance of product. SUMMARY

[0003] This section is directed to outlining some aspects of the embodiments of the present utility model and briefly introducing some preferred embodiments. Some simplifications or omissions can be made in this section as well as in the abstract of the specification and the utility model title to avoid obscuring the purpose of this section, the abstract of the specification and the utility model title, and such simplifications or omissions cannot be used to limit the scope of the present utility model.

[0004] In view of the above and / or existing problems in the structure of extruder screw sleeve, the present utility model is proposed.

[0005] Therefore, the problem to be solved by the present utility model is that one end of screw sleeve is open when not in use, which leads to dust, chippings and other impurities entering the interior of screw sleeve, affecting subsequent processing.

[0006] To solve the above technical problems, the present utility model provides the following technical scheme: an extruder screw sleeve structure, comprising a closing assembly, comprising a closing piece, comprising a closing plate, a toothed plate and a gear ring, the toothed plate is fixed on one side of the closing plate, the gear ring is arranged on one side of the toothed plate, the toothed plate and the gear ring are engaged.

[0007] A driving assembly is arranged on the closing piece, comprising a driving block, a driving plate and a rotating disc, the driving block is arranged on the closing piece, the driving plate is fixed on one side of the driving block, and the rotating disc is fixed on one end of the driving plate.

[0008] As a preferred scheme of the extruder screw sleeve structure of the present utility model, the closing assembly further comprises a support piece arranged on the toothed plate, and a support shaft is fixed on one side of the toothed plate.

[0009] As a preferred scheme of the extruder screw structure, the support shaft is sleeved with a support disc, the support disc and the support shaft are rotationally connected through a rotating shaft, and one side of the gear ring is fixed with a sliding strip.

[0010] As a preferred scheme of the extruder screw structure, a sliding groove corresponding to the sliding strip is formed in the support disc, and the sliding strip slides in the sliding groove.

[0011] As a preferred scheme of the extruder screw structure, the driving assembly further comprises a limiting piece arranged on the rotating disc, a limiting block is arranged on one side of the rotating disc, and a limiting frame is arranged on one side of the limiting block.

[0012] As a preferred scheme of the extruder screw structure, a moving strip is fixed on one side of the limiting block, and a pull rod is fixed on one end of the moving strip.

[0013] As a preferred scheme of the extruder screw structure, a moving disc is sleeved on the outer side of the moving strip, and a spring is fixed on one side of the moving disc.

[0014] As a preferred scheme of the extruder screw structure, a support sleeve is sleeved on the outer side of the moving strip, the support sleeve and the moving strip are movably connected, and a fixed plate is sleeved on the outer side of the support sleeve.

[0015] As a preferred scheme of the extruder screw structure, a main body assembly is further arranged on the support disc, and comprises a screw body fixed on one side of the support disc.

[0016] As a preferred scheme of the extruder screw structure, the screw body is fixed with a mounting ring on one side.

[0017] The extruder screw structure has the beneficial effects that when the screw is not used, one end of the screw can be closed, the closed end of the screw can effectively block dust, debris, fibers and other impurities from entering the inside of the screw, and these impurities may exist in large quantities in the production environment during storage and idling, if they enter the screw, they will be mixed into the plastic material during next use, affecting the quality of the extruded product, causing appearance defects or performance degradation of the product, and closing one end of the screw can ensure that the inside of the screw always remains relatively clean, providing good conditions for next use. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the premise of not deviating from the concept of the present application. Among them:

[0019] Figure 1 It is a whole structure diagram of the extruder screw sleeve structure.

[0020] Figure 2 It is a closing plate structure diagram of the extruder screw sleeve structure.

[0021] Figure 3 It is a tooth plate structure diagram of the extruder screw sleeve structure.

[0022] Figure 4 It is a driving block structure diagram of the extruder screw sleeve structure.

[0023] Figure 5 It is a closing plate structure diagram of the extruder screw sleeve structure. Figure 4 It is a local enlarged structure diagram of A in the middle. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0025] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the concept of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0026] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0027] Embodiment 1

[0028] Referring to Figures 2-5 , the first embodiment of the present application provides an extruder screw sleeve structure, which comprises a closing assembly 200, a driving assembly 300 and a main body assembly 100, which can be closed at one end without using the screw sleeve.

[0029] The closed assembly 200 comprises a closure 201, the closure 201 comprises a closure plate 201a, a toothed plate 201b and a toothed ring 201c, the toothed plate 201b is fixed on one side of the closure plate 201a, the toothed ring 201c is arranged on one side of the toothed plate 201b, and the toothed plate 201b and the toothed ring 201c are engaged.

[0030] The number of the closure plates 201a is four, and the closure plates 201a are all arranged in the support disc 202b; the number of the toothed plates 201b is four, and the toothed plates 201b are all fixed on one side of the closure plate 201a; when it is needed to close the sleeve body 101, the toothed ring 201c is rotated, the toothed ring 201c drives the toothed plate 201b to move, the toothed plate 201b drives the closure plate 201a to move through the movement of the toothed plate 201b, so that the sleeve body 101 can be closed, and the opening of the sleeve body 101 can be opened to different sizes; different plastic product production can need different material flow, and the material flow entering the sleeve can be accurately adjusted by opening the opening of the sleeve body 101 to different sizes, so that the production requirements of various products can be better adapted.

[0031] The driving assembly 300 is arranged on the closure 201 and comprises a driving block 301a, a driving plate 301b and a rotating disc 301c, the driving block 301a is arranged on the closure 201, the driving plate 301b is fixed on one side of the driving block 301a, and the rotating disc 301c is fixed at one end of the driving plate 301b.

[0032] The rotating disc 301c is rotatably connected to one side of the support disc 202b through a rotating shaft, the driving block 301a is fixed on one side of the slide bar 202c, the slide bar 202c is fixed on one side of the toothed ring 201c, the driving plate 301b is driven to rotate by rotating the rotating disc 301c, the driving block 301a is driven to rotate by the driving plate 301b, and the toothed ring 201c is driven to rotate by the driving block 301a.

[0033] Embodiment 2

[0034] Referring to Figures 2-5 For the second embodiment of the utility model, the embodiment is based on the previous embodiment.

[0035] Specifically, the closed assembly 200 further comprises a support 202 arranged on the toothed plate 201b, and the toothed plate 201b is fixed with a support shaft 202a on one side.

[0036] The number of the support shafts 202a is four, and the support shafts 202a are all rotatably connected to the inner wall of the support disc 202b through bearings; when the toothed plate 201b rotates, the support shafts 202a are driven to rotate, the toothed plate 201b is supported through the rotation of the support shafts 202a, and the toothed plate 201b is prevented from deviating.

[0037] Specifically, the support shaft 202a is sleeved with a support disc 202b, the support disc 202b and the support shaft 202a are rotationally connected through a rotating shaft, and one side of the gear ring 201c is fixed with a sliding bar 202c.

[0038] The support disc 202b is used for supporting the support shaft 202a, so that the support shaft 202a is prevented from deviating, and the gear ring 201c can be driven to rotate through the movement of the sliding bar 202c.

[0039] Specifically, the support disc 202b is provided with a sliding groove X corresponding to the sliding bar 202c, and the sliding bar 202c slides in the sliding groove X.

[0040] The sliding bar 202c can slide in the sliding groove X when the sliding bar 202c moves, so that the sliding bar 202c can be supported and prevented from deviating when moving.

[0041] Specifically, the driving assembly 300 further comprises a limiting piece 302 arranged on the rotating disc 301c, one side of the rotating disc 301c is provided with a limiting block 302a, and one side of the limiting block 302a is provided with a limiting frame 302b.

[0042] The limiting frame 302b is fixed to one side of the support disc 202b, and the limiting block 302a can be supported by the limiting frame 302b, so that the limiting block 302a is prevented from deviating.

[0043] Specifically, one side of the limiting block 302a is fixed with a moving bar 302c, and one end of the moving bar 302c is fixed with a pull rod 302d.

[0044] When it is necessary to release the limiting of the rotating disc 301c, the pull rod 302d can drive the moving bar 302c to move, and the moving bar 302c can drive the limiting block 302a to separate from the limiting groove, so that the limiting of the rotating disc 301c can be released.

[0045] Specifically, the moving bar 302c is sleeved with a moving disc 302e, and one side of the moving disc 302e is fixed with a spring 302f.

[0046] When the mobile strip 302c is moved, the mobile disc 302e can be moved, the spring 302f can be pressed by the movement of the mobile disc 302e, at this time, the limiting block 302a and the limiting groove can be separated, when it is needed to limit the rotating disc 301c again, the pull rod 302d is loosened, at this time, the limiting block 302a and the limiting groove can be re-engaged by the rebound force of the spring 302f.

[0047] Embodiment 3

[0048] Refer to Figures 1-5 For the third embodiment of the utility model, the embodiment is based on the previous two embodiments.

[0049] Specifically, the mobile strip 302c is sleeved with a supporting sleeve 302g, the supporting sleeve 302g and the mobile strip 302c are movably connected, and the supporting sleeve 302g is sleeved with a fixed plate 302h outside.

[0050] The supporting sleeve 302g is used for supporting the mobile strip 302c, preventing the mobile strip 302c from deviating, the fixed plate 302h is fixed on one side of the supporting disc 202b, and the supporting sleeve 302g can be supported by the fixed plate 302h, preventing the supporting sleeve 302g from deviating.

[0051] Specifically, the main assembly 100 is arranged on the supporting disc 202b and comprises a screw sleeve body 101 fixed on one side of the supporting disc 202b.

[0052] The screw sleeve body 101 is a key component for material conveying and containing in the extruder, plastic particles or powder and other materials enter the screw sleeve body 101 from the feeding port, and are moved forward along the helical groove on the inner wall of the screw sleeve body 101 under the rotation of the screw, and are gradually conveyed to the head part of the extruder, preparing for subsequent extrusion molding.

[0053] Specifically, the screw sleeve body 101 is fixed with a mounting ring 102 on one side.

[0054] The mounting ring 102 enables the screw sleeve body 101 to be accurately installed at a predetermined position of the barrel, and maintains a correct relative positional relationship with other components such as the screw.

[0055] In use, first, the rotation disc 301c is released from the limit, the pull rod 302d is moved, the pull rod 302d can drive the moving strip 302c to move, the moving strip 302c can drive the moving disc 302e to move when moving, the moving disc 302e can exert extrusion force on the spring 302f through the movement, at this time, the limiting block 302a and the limiting groove can be separated, thereby the rotation disc 301c can be released from the limit, then the rotation disc 301c is rotated to drive the driving plate 301b to rotate, the driving plate 301b drives the driving block 301a to rotate, the gear ring 201c can be driven to rotate through the rotation of the driving block 301a.

[0056] The gear ring 201c drives the toothed plate 201b to move, the toothed plate 201b can drive the closing plate 201a to move through the movement, thereby the screw sleeve body 101 can be closed, and the opening of the screw sleeve body 101 can be opened to different sizes, different plastic product production can need different material flow, the opening of the screw sleeve body 101 can be opened to different sizes, the flow of the material into the screw sleeve can be accurately adjusted, thereby better adapting to the production requirements of various products.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not to limit, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced, without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. An extruder screw configuration, characterized by: The utility model relates to a sealing assembly (200) and a driving assembly (300) and a main body assembly (100), and the sealing assembly (200) comprises a sealing piece (201), the sealing piece (201) comprises a sealing plate (201a), a toothed plate (201b) and a gear ring (201c), the toothed plate (201b) is fixed on one side of the sealing plate (201a), the gear ring (201c) is arranged on one side of the toothed plate (201b), and the toothed plate (201b) and the gear ring (201c) are engaged. The driving assembly (300) is arranged on the sealing piece (201) and comprises a driving block (301a), a driving plate (301b) and a rotating disc (301c), the driving block (301a) is arranged on the sealing piece (201), the driving plate (301b) is fixed on one side of the driving block (301a), and the rotating disc (301c) is fixed at one end of the driving plate (301b). The sealing assembly (200) further comprises a support (202) arranged on the toothed plate (201b), and a support shaft (202a) is fixed on one side of the toothed plate (201b).

2. The extruder sleeve structure of claim 1, wherein: The support shaft (202a) is sleeved with a support disc (202b) on the outside, the support disc (202b) and the support shaft (202a) are rotationally connected through a rotating shaft, and one side of the gear ring (201c) is fixed with a sliding bar (202c).

3. The extruder sleeve structure of claim 2, wherein: A sliding groove (X) corresponding to the sliding bar (202c) is formed in the support disc (202b), and the sliding bar (202c) slides in the sliding groove (X).

4. The extruder sleeve structure of claim 3, wherein: The driving assembly (300) further comprises a limiting piece (302) arranged on the rotating disc (301c), one side of the rotating disc (301c) is provided with a limiting block (302a), and one side of the limiting block (302a) is provided with a limiting frame (302b).

5. The extruder sleeve structure of claim 3 or 4, wherein: One side of the limiting block (302a) is fixed with a moving bar (302c), and one end of the moving bar (302c) is fixed with a pull rod (302d).

6. The extruder sleeve structure of claim 5, wherein: The moving bar (302c) is sleeved with a moving disc (302e) on the outside, and one side of the moving disc (302e) is fixed with a spring (302f).

7. The extruder sleeve structure of claim 6, wherein: The moving bar (302c) is sleeved with a support sleeve (302g) on the outside, the support sleeve (302g) and the moving bar (302c) are movably connected, and the support sleeve (302g) is sleeved with a fixed plate (302h) on the outside.

8. The extruder sleeve structure of claim 7, wherein: The utility model further comprises a main body assembly (100) arranged on the support disc (202b), and the main body assembly (100) comprises a screw sleeve body (101) fixed on one side of the support disc (202b).

9. The extruder sleeve structure of claim 7 or 8, wherein: One side of the screw sleeve body (101) is fixed with a mounting ring (102).

10. The extruder sleeve structure of claim 9, wherein: ​

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