Extruder barrel support structure

Abstract

The utility model relates to extruder technical field provides extruder cylinder support structure, including main body base, bottom support limiting mechanism, top limiting mechanism and side surface support limiting mechanism: the cavity of accommodating part machine cylinder is provided on main body base, bottom support limiting mechanism includes a plurality of bottom elastic support, and one end is connected in main body base of bottom elastic support, and the other end is connected in machine cylinder bottom surface, side surface support limiting mechanism includes a plurality of side surface elastic support, and one end is connected in main body base of side surface elastic support, and the other end is connected in machine cylinder side surface, top limiting mechanism includes a plurality of top limiting piece, and top limiting piece with main body base top connection and be located above side surface support limiting mechanism, the utility model can be to the all -round limiting support of extruder cylinder.

Description

Technical Field

[0001] This utility model relates to the field of extruder technology, and in particular to an extruder barrel support structure. Background Technology

[0002] Extruder barrels expand due to heat, causing displacement in both the front-to-back and lateral directions. Because extruder barrels are often long, the ground around the barrel section (e.g., arching) or the frame may also deform vertically, exacerbating these expansion displacements. Current technology using carbon steel structural components for unidirectional bottom support of the extruder barrel has several drawbacks:

[0003] First, it is impossible to control the displacement of the barrel in the left-right and front-back directions caused by expansion;

[0004] Second, the rigid support of carbon steel structural components reduces the lifespan of the supports.

[0005] Third, the carbon steel structural components with unidirectional bottom support have low structural strength and cannot meet the force requirements caused by the thermal expansion and vibration of the barrel. Therefore, the force caused by the thermal expansion and vibration of the barrel is much greater than that of the unidirectional bottom support.

[0006] Therefore, there is an urgent need for a support structure that provides four-way limiting support for the barrel. Utility Model Content

[0007] In view of this, the present invention provides an extruder barrel support structure to solve the technical defects existing in the prior art.

[0008] The extruder barrel support structure of this utility model includes a main base, a bottom support limiting mechanism, a top limiting mechanism, and a side support limiting mechanism:

[0009] The main body base is provided with a cavity to accommodate part of the barrel;

[0010] The bottom support limiting mechanism includes multiple bottom elastic support members, one end of which is connected to the main body base, and the other end of which is connected to the bottom surface of the barrel.

[0011] The side support limiting mechanism includes multiple side elastic support members, one end of which is connected to the main body base, and the other end of which is connected to the side of the barrel.

[0012] The top limiting mechanism includes multiple top limiting components, which are connected to the top of the main body base and located above the side support limiting mechanism.

[0013] In one possible implementation, the bottom support limiting mechanism further includes a bottom buffer structure disposed on the top surface of the bottom elastic support member.

[0014] In one possible implementation, the side support limiting mechanism further includes a side buffer structure disposed on the side of the side elastic support facing the barrel side.

[0015] In one possible implementation, the extruder barrel support structure further includes a plurality of reinforcing ribs disposed on the front and rear sides of the bottom of the main body base.

[0016] In one possible implementation, the top limiting member has a gap with the top of the side elastic support member.

[0017] In one possible implementation, the bottom support limiting mechanism includes at least one pair of bottom elastic support members, which are symmetrically arranged at the bottom of the main body base relative to the barrel axis.

[0018] In one possible implementation, the side support limiting mechanism includes at least one pair of side elastic supports, which are symmetrically arranged on the side of the main body base relative to the barrel axis.

[0019] In one possible implementation, the top limiting mechanism includes at least one pair of top limiting members, which are symmetrically arranged on the top of the main body base relative to the barrel axis.

[0020] In one possible implementation, the extruder barrel support structure is symmetrical.

[0021] In one possible implementation, the bottom elastic support includes a support bolt and a locking nut, the support bolt being fixed to the main body base by the locking nut.

[0022] In one possible implementation, the bottom buffer structure is an elastic pad disposed between the bolt head of the support bolt and the bottom of the barrel.

[0023] In one possible implementation, the side elastic support includes a support bolt and a locking nut, the support bolt being fixed to the main body base by the locking nut.

[0024] In one possible implementation, the side elastic support further includes a side limiting plate, which is arranged along the side of the barrel in the longitudinal direction and is detachably connected to the side of the barrel. The top surface of the limiting plate is lower than the top surface of the main body base, and there is a gap between the side of the limiting plate and the support bolt.

[0025] In one possible implementation, the side buffer structure is an elastic pad disposed between the bolt head of the support bolt and the limiting plate.

[0026] In one possible implementation, there is a gap between the elastic gasket and the limiting plate.

[0027] In one possible implementation, the top limiting member includes a top limiting plate, the length direction of which is arranged along the top surface of the main body base. One end of the top limiting plate is connected to the top surface of the main body base, and the other end of the top limiting plate extends out of the top surface of the main body base, is located above the cavity of the main body base, and has a gap with the side of the barrel.

[0028] In one possible implementation, the main body base includes a base plate and a main body plate, the base plate being fixedly connected to the machine tool bed, the main body plate being disposed on the base plate, and the main body plate having a cavity for accommodating a portion of the machine barrel.

[0029] In one possible implementation, a step is provided inside the cavity, and the bottom support limiting mechanism is provided on the step.

[0030] In one possible implementation, the side of the main body plate facing the bottom plate is also provided with a cavity.

[0031] The extruder barrel support structure of this utility model provides support for the bottom foundation of the extruder barrel through the bottom support limiting mechanism and the side support limiting mechanism, while also providing lateral limiting support for the displacement caused by expansion in the left and right directions. The top limiting mechanism provides additional upper limit for vertical displacement caused by the ground, frame, etc., ensuring that the position of the barrel will not deviate significantly during operation. Attached Figure Description

[0032] Figure 1 This is a front view schematic diagram of an embodiment of the extruder barrel support structure described in this utility model;

[0033] Figure 2 This is a left-side view of an embodiment of the extruder barrel support structure described in this utility model;

[0034] Figure 3 This is a schematic diagram of an extruder barrel application scenario, representing one embodiment of the extruder barrel support structure described in this utility model.

[0035] in:

[0036] 1. Main base; 11. Main plate; 12. Bottom plate; 13. Cavity;

[0037] 2. Bottom support limiting mechanism; 21. Bottom elastic support component; 231. Support bolt; 232. Locking nut; 22. Bottom buffer structure;

[0038] 3. Side support and limiting mechanism; 31. Side elastic support component; 311. Side limiting plate; 32. Side buffer structure;

[0039] 4. Top limiting mechanism; 41. Top limiting component; 411. Top limiting plate;

[0040] 5. Reinforcing ribs;

[0041] 100. Machine barrel. Detailed Implementation

[0042] Many specific details are set forth in the following description to provide a full understanding of this specification. However, this specification can be implemented in many other ways than those described herein, and those skilled in the art can make similar extensions without departing from the spirit of this specification. Therefore, this specification is not limited to the specific implementations disclosed below.

[0043] The terminology used in one or more embodiments of this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the one or more embodiments of this specification. The singular forms “a” and “the” as used in one or more embodiments of this specification and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in one or more embodiments of this specification refers to and includes any or all possible combinations of one or more associated listed items.

[0044] In the existing technology, in order to maintain the mechanical stability of the extruder barrel, a bottom support is set at the bottom of the barrel. However, the displacement caused by the thermal expansion of the barrel in the left-right and front-back directions is not taken into account, nor is the large vertical displacement between the top and bottom caused by the ground, frame, etc. These displacements will have a significant impact on extruder production and reduce its service life.

[0045] To solve the above problems, such as Figure 1 As shown, this utility model provides an extruder barrel support structure that provides ground and side support limits for the barrel 100 while also limiting its upward displacement. The extruder barrel 100 support structure is detachably connected to the barrel 100 and includes a main base 1, a bottom support limiting mechanism 2, a top limiting mechanism 4, and a side support limiting mechanism 3.

[0046] The main base 1 is provided with a cavity 13 for accommodating part of the barrel 100;

[0047] The bottom support limiting mechanism 2 is connected to the bottom of the cavity 13 and also to the bottom of the barrel 100;

[0048] The side support limiting mechanism 3 is connected to the side of the cavity 13 and also to the side of the barrel 100;

[0049] The top limiting mechanism 4 is connected to the top surface of the main body base 1 and extends out of the top surface toward the cavity 13 and the side of the barrel 100.

[0050] In one feasible embodiment, there is a gap between the top of the top limiting mechanism 4 and the top of the side limiting mechanism to prevent the top limiting mechanism 4 and the side limiting mechanism from colliding and causing damage such as loosening of components when the barrel 100 moves upward.

[0051] In one feasible embodiment, the extruder barrel 100 support structure further includes a buffer structure, which is disposed between the bottom support limiting mechanism 2 and the barrel 100 or / and between the side support limiting mechanism 3 and the barrel 100, for buffering the displacement of the barrel 100.

[0052] In one feasible embodiment, such as Figure 2 As shown, the extruder barrel 100 support structure also includes reinforcing ribs 5, which are disposed on the front and / or rear side of the bottom of the main body base 1 to improve the structural strength.

[0053] The following is combined with Figures 1-3 This section provides a detailed description of each component of the support mechanism for the extruder barrel 100.

[0054] Bottom support limiting mechanism 2:

[0055] The bottom support and limiting mechanism 2 includes multiple bottom elastic support members 21, one end of which is connected to the main body base 1, and the other end of which is connected to the bottom surface of the barrel 100. The bottom support and limiting mechanism 2 may also include a bottom buffer structure 22 disposed on the top surface of the bottom elastic support members 21.

[0056] In one feasible embodiment, the bottom elastic support 21 includes a support bolt 231 and a locking nut 232, wherein the support bolt 231 is fixed to the main body base 1 by the locking nut 232. The bottom buffer structure 22 is an elastic gasket, which is disposed between the bolt head of the support bolt 231 and the bottom of the barrel 100.

[0057] In a preferred embodiment, such as Figure 1 and Figure 3As shown, the bottom support limiting mechanism 2 includes at least one pair of bottom elastic support members 21, which are symmetrically arranged at the bottom of the main body base 1 relative to the axis of the barrel 100. Support bolts 231 are mounted on the main body base 1 and locked in place by lock nuts 232. The elastic washers are copper washers, which are mounted to the bolt heads of the support bolts 231 by flat-head screws. The bottom elastic support members 21 provide upward support to the barrel 100 and offer cushioning against vibration and thermal expansion.

[0058] Side support limiting mechanism 3:

[0059] The side support limiting mechanism 3 includes multiple side elastic support members 31, one end of which is connected to the main body base 1, and the other end of which is connected to the side of the barrel 100. The side support limiting mechanism 3 may also include a side buffer structure 32, which is disposed on the side of the side elastic support member 31 facing the side of the barrel 100.

[0060] To further enhance the mechanical stability of the structure, the side support limiting mechanism 3 includes at least a pair of bottom elastic support members 21, which are symmetrically arranged at the bottom of the main body base 1 relative to the axis of the barrel 100.

[0061] In one feasible embodiment, the side elastic support 31 includes a support bolt 231 and a locking nut 232, wherein the support bolt 231 is fixed to the main body base 1 by the locking nut 232. The side buffer structure 32 is an elastic washer, for example, a copper washer. The support bolt 231 is installed on the side of the main body base 1 and locked by the locking nut 232, and the copper washer is installed on the bolt head of the support bolt 231 by a flat-head screw.

[0062] To enhance the limiting and supporting effect in the left-right and front-back directions, in a preferred embodiment, the side elastic support 31 further includes a side limiting plate 311. The side limiting plate 311 is arranged along the side of the barrel 100 along its length and is detachably connected to the side of the barrel 100. The top surface of the limiting plate is lower than the top surface of the main body base 1, and there is a gap between the side of the limiting plate and the support bolt 231. For example, the support bolt 231 is installed on the side of the main body base 1 and locked by a lock nut 232. A copper washer is installed on the bolt head of the support bolt 231 by a flat-head screw. The limiting plate is installed on the side of the barrel 100 by bolts. There is a gap between the copper washer and the limiting plate, which provides expansion space while preventing excessive left-right expansion from damaging the limiting plate. When the barrel 100 expands to the left or right and shifts, the contact limiting of the limiting plate and the side buffer structure 32 provides left-right supporting force and buffering for the barrel 100.

[0063] Top limiting mechanism 4:

[0064] The top limiting mechanism 4 includes multiple top limiting members 41, which are disposed on the top of the main body base 1 and above the side elastic support member 31.

[0065] To enhance the mechanical stability of the structure, in one feasible embodiment, the top limiting mechanism 4 includes at least a pair of top limiting members 41, which are symmetrically arranged on the top of the main body base 1 relative to the axis of the barrel 100. The top limiting members 41 act as an upper limit for the barrel 100, preventing the barrel 100 from shifting position due to deformation of the bottom ground or the frame.

[0066] In a preferred embodiment, the top limiting member 41 includes a top limiting plate 411. The length direction of the top limiting plate 411 is arranged along the top surface of the main body base 1. One end of the top limiting plate 411 is connected to the top surface of the main body base 1, and the other end of the top limiting plate 411 extends out of the top surface of the main body base 1 and is located above the cavity 13 of the main body base 1. The upper limit function of the side support limiting mechanism 3 connected to the barrel 100 is used to achieve the upper limit function of the barrel 100 moving upward.

[0067] In one feasible embodiment, there is a gap between the top limiting plate 411 and the side support limiting mechanism 3 to provide space for upward movement. Since the support point of the bottom support limiting mechanism 2 is located at the bottom of the barrel 100, the upward displacement caused by the thermal expansion of the barrel 100 is relatively small at this position. The existence of the gap prevents the side support limiting mechanism 3 from colliding with the top limiting plate 411 and causing the component to loosen or be damaged when the barrel 100 moves upward. Preferably, the gap is 0.3mm-0.6mm, and more preferably, the gap is 0.5mm. If the gap is too large, the limiting effect will be reduced; if the gap is too small, the component will easily become loose or be damaged.

[0068] In one feasible embodiment, there is a gap between the top limiting plate 411 and the side of the barrel 100 to provide expansion space and prevent damage to the side surface of the barrel. Preferably, the gap between the top limiting plate 411 and the side of the barrel 100 is smaller than the gap between the top limiting plate 411 and the side support limiting mechanism 3. The movement caused by thermal expansion is generally smaller than the vertical displacement caused by the ground, frame, etc., which plays an effective limiting and supporting role for the barrel 100.

[0069] Main base 1:

[0070] The main base 1 includes a base plate 12 and a main plate 11. The base plate 12 is fixedly connected to the machine tool bed, and the main plate 11 is disposed on the base plate 12. The main plate 11 is provided with a cavity 13 for accommodating part of the machine barrel 100.

[0071] In order to enhance the installation stability of the bottom support limiting mechanism 2 and facilitate the material loading of the barrel 100, in a feasible embodiment, a step is provided in the cavity 13, and the bottom support limiting mechanism 2 is provided on the step.

[0072] To facilitate the installation of other components (such as drive motors), in one feasible embodiment, the side of the main body plate 11 facing the bottom plate 12 is also provided with a cavity 13, that is, the main body plate 11 has an H-shaped structure with a large head and a small tail.

[0073] To facilitate the maintenance of the barrel 100 and the movable shape of the discharge position, in one feasible embodiment, a slide rail is provided on the base plate 12, the slide rail being configured to allow the main body plate 11 to move relative to the base plate 12.

[0074] Reinforcing rib 5:

[0075] The reinforcing ribs 5 are installed on the front and rear sides of the main base 1, which serve to strengthen the structure.

[0076] In a preferred embodiment, the reinforcing ribs 5 are welded to the front and rear sides of the main body plate 11, and their function is to strengthen the structural rigidity and extend the service life of the support structure when the barrel 100 undergoes thermal expansion displacement.

[0077] This invention utilizes a bottom elastic support member 21 to provide basic support for the barrel 100, while the side elastic support members 31 provide lateral limiting support for displacement due to thermal expansion. The top limiting plate 411 provides additional upper limit support for vertical displacement caused by the ground, frame, etc., ensuring that the barrel 100 does not deviate significantly during operation. This constitutes a four-way adjustable support structure. Furthermore, elastic pads are incorporated into the support structure as a bottom buffer structure 22 and a side buffer structure 32. The ductility of the elastic pads (e.g., the ductility of copper) significantly extends the lifespan of the support structure.

[0078] The above embodiments provide an example of an elastic support for the support bolt 231. However, this utility model is not limited to this. The elastic support can also be a leaf spring, a coil spring, a torsion bar spring, a gas spring, a rubber spring, etc., and can also be an elastic sleeve support. In addition, the support bolt 231 can also be a double-ended support bolt 231, with one end locked by a lock nut 232 and the other end connected to a buffer structure.

[0079] The extruder barrel 100 support structure of this utility model provides basic support for the barrel 100 through a bottom support limiting mechanism 2, while the side support limiting mechanism 3 provides lateral limiting support for displacement due to thermal expansion, and the top limiting mechanism 4 provides additional upper limit support for vertical displacement caused by the ground, frame, etc., ensuring that the position of the barrel 100 does not deviate significantly during operation, thus forming a four-way adjustable support structure. In addition, a buffer structure is set in the support structure to greatly extend the service life of the support structure.

[0080] To further enhance the engineering balance between mechanical stability and ease of maintenance, the support structure of the extruder barrel 100 described in this utility model is a symmetrical structure.

[0081] In one specific embodiment of this utility model, the extruder barrel 100 support structure is applied to a GP180 twin-screw extruder. Through a four-way adjustable structure (bottom support limiting mechanism 2 and side support limiting mechanism 3, which adjust the length of the support bolts 231 extending into the cavity 13 to achieve four-way adjustment of the top, bottom, left, and right sides of the barrel 100) and a copper pad buffer structure, it effectively supports and limits the barrel 100 in the four directions (up, down, left, and right). This ensures the straightness of the barrel 100 connection and prevents the internal screw from scraping the inner wall of the barrel 100 due to positional deviations during operation.

[0082] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0083] The preferred embodiments disclosed above are merely illustrative of this specification. Optional embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the embodiments described herein. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the embodiments, thereby enabling those skilled in the art to better understand and utilize this specification. This specification is limited only by the claims and their full scope and equivalents.

Claims

1. An extruder barrel support structure characterized by, Includes the main base, bottom support and limiting mechanism, top limiting mechanism, and side support and limiting mechanism: The main base is provided with a cavity to accommodate part of the barrel; The bottom support limiting mechanism includes multiple bottom elastic support members, one end of which is connected to the main body base, and the other end of which is connected to the bottom surface of the barrel. The side support limiting mechanism includes multiple side elastic support members, one end of which is connected to the main body base, and the other end of which is connected to the side of the barrel. The top limiting mechanism includes multiple top limiting members, which are connected to the top of the main body base and located above the side support limiting mechanism.

2. The extruder barrel support structure according to claim 1, characterized in that, The bottom support limiting mechanism also includes a bottom buffer structure, which is disposed on the top surface of the bottom elastic support.

3. The extruder barrel support structure according to claim 1, characterized in that, The side support limiting mechanism also includes a side buffer structure, which is disposed on the side of the side elastic support member facing the side of the barrel.

4. The extruder barrel support structure according to claim 1, characterized in that, It also includes multiple reinforcing ribs, which are disposed on the front and rear sides of the bottom of the main body base.

5. The extruder barrel support structure according to claim 1, characterized in that, The top limiting member has a gap with the top of the side elastic support member.

6. The extruder barrel support structure according to claim 1, characterized in that, The bottom support limiting mechanism includes at least one pair of bottom elastic support members, which are symmetrically arranged at the bottom of the main body base relative to the axis of the barrel.

7. The extruder barrel support structure according to claim 1, characterized in that, The side support limiting mechanism includes at least one pair of side elastic support members, which are symmetrically arranged on the side of the main body base relative to the barrel axis.

8. The extruder barrel support structure according to claim 1, characterized in that, The top limiting mechanism includes at least one pair of top limiting members, which are symmetrically arranged on the top of the main body base relative to the axis of the barrel.

9. The extruder barrel support structure according to claim 1, characterized in that, The extruder barrel support structure is symmetrical.

10. The extruder barrel support structure according to claim 1, characterized in that, The bottom elastic support includes a support bolt and a locking nut, and the support bolt is fixed to the main body base by the locking nut.

11. The extruder barrel support structure according to claim 10, characterized in that, The bottom buffer structure is an elastic pad, which is placed between the bolt head of the support bolt and the bottom of the barrel.

12. The extruder barrel support structure according to claim 1, characterized in that, The side elastic support includes a support bolt and a locking nut, and the support bolt is fixed to the main body base by the locking nut.

13. The extruder barrel support structure according to claim 12, characterized in that, The side elastic support also includes a side limiting plate, which is arranged along the side of the barrel in the length direction and is detachably connected to the side of the barrel. The top surface of the limiting plate is lower than the top surface of the main body base and there is a gap between the side of the limiting plate and the support bolt.

14. The extruder barrel support structure according to claim 13, characterized in that, The side buffer structure is an elastic pad, which is disposed between the bolt head of the support bolt and the limiting plate.

15. The extruder barrel support structure according to claim 14, characterized in that, There is a gap between the elastic gasket and the limiting plate.

16. The extruder barrel support structure according to claim 1, characterized in that, The top limiting component includes a top limiting plate, which is arranged along the top surface of the main body base in the length direction. One end of the top limiting plate is connected to the top surface of the main body base, and the other end of the top limiting plate extends out of the top surface of the main body base, is located above the cavity of the main body base, and has a gap with the side of the barrel.

17. The extruder barrel support structure according to claim 1, characterized in that, The main base includes a base plate and a main plate. The base plate is fixedly connected to the machine tool bed, and the main plate is set on the base plate. The main plate has a cavity for accommodating part of the machine barrel.

18. The extruder barrel support structure according to claim 17, characterized in that, The cavity is provided with a step, and the bottom support limiting mechanism is provided on the step.

19. The extruder barrel support structure according to claim 17, characterized in that, The side of the main plate facing the bottom plate also has a cavity.

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