Centering structure of extruding machine

Abstract

The utility model discloses a centering structure of an extruding machine in the technical field of aluminum profile extruding machine equipment. The centering structure comprises a detection reference rod and a detection arm, the detection reference rod is in a long strip shape and is arranged on the extruder beam in the front-back direction. The detection arm has a connection end and a detection end. And the connecting end is fixedly connected with an extruding cylinder or a middle plate of the extruding machine. The detection end is arranged beside the detection reference rod and is provided with a distance measuring unit facing the detection reference rod. According to the centering structure of the extruding machine, the distance measuring unit is used for reflecting the change of the distance between the detecting end and the measuring reference rod, so that the movement deviation of the extruding cylinder and the middle plate is monitored, and the centering error is prevented from being increased due to looseness of equipment. And the detection reference rod can provide a centering calibration basis, so that the centering calibration debugging process can be more conveniently completed.

Description

Technical Field

[0001] This utility model relates to the technical field of aluminum profile extrusion press equipment, and in particular to an extrusion press centering structure. Background Technology

[0002] An aluminum extrusion press is a device that applies external force to aluminum profiles, causing them to flow out through specific die holes and thus forming aluminum profiles. With the widespread use of aluminum profiles in industry, aluminum profile extrusion has become an important industrial process.

[0003] In existing technologies, extruders achieve the extrusion molding of high-temperature aluminum rods by aligning the die cavity, extrusion cylinder, and extrusion rod in a straight line. The accuracy of alignment also needs to take into account the deformation of each component (especially the extrusion rod) before and after heating, which is quite complex and cumbersome, significantly limiting the quality of extrusion molding and extrusion production efficiency. Therefore, precise inspection and adjustment of the alignment of the extrusion die, extrusion cylinder, and extrusion rod are crucial.

[0004] Due to the high extrusion pressure and temperature, all installation and connection points of the equipment require anti-loosening treatment, and frequent precise checks and adjustments to the equipment's alignment are also necessary. Alignment checks in existing extrusion equipment are complex and time-consuming. Furthermore, the clamping cylinder needs to drive the extrusion cylinder assembly to press firmly against the front plate, and the interaction force between its piston rod and the extrusion cylinder assembly is significant. Even with ordinary anti-loosening adhesive for fixation, occasional loosening still occurs, affecting the equipment's alignment performance. Utility Model Content

[0005] The purpose of this utility model is to provide an extruder centering structure to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0006] The technical solution adopted to solve the above-mentioned technical problems is as follows:

[0007] An extruder centering structure includes a front plate and a rear plate arranged front to back, and a crossbeam fixedly disposed between the front plate and the rear plate. An extrusion cylinder and a middle plate are also provided between the front plate and the rear plate and are slidably connected to the crossbeam in the front and rear directions. The structure also includes a detection reference rod and a detection arm.

[0008] The detection reference rod is long and strip-shaped and is set on the crossbeam along the front-to-back direction;

[0009] The detection arm has a connecting end and a detection end. The connecting end is fixedly connected to the extrusion cylinder or the middle plate. The detection end is located beside the detection reference rod and has a distance measuring unit facing the detection reference rod.

[0010] The extruder centering structure provided by this utility model has at least the following beneficial effects: the ranging unit can reflect the change in distance between the detection end and the reference rod. When the extrusion cylinder and the middle plate move back and forth relative to the front plate and the rear plate, the detection arm can move with the extrusion cylinder and the middle plate, and during the movement, the ranging unit can always face the reference rod, thereby monitoring the movement deviation of the extrusion cylinder and the middle plate through the ranging unit, and avoiding the centering error from increasing due to equipment loosening. At the same time, the reference rod can provide a basis for centering calibration, making it easier to complete the centering calibration and debugging process.

[0011] As a further improvement to the above technical solution, the detection reference rod has two mutually perpendicular detection reference surfaces, and the detection end is provided with two ranging units facing the two detection reference surfaces respectively.

[0012] As a further improvement to the above technical solution, the two detection reference planes are perpendicular to the vertical direction and the horizontal direction, respectively.

[0013] As a further improvement to the above technical solution, the detection reference rod is a square rod with a rectangular cross-section.

[0014] As a further improvement to the above technical solution, multiple mounting brackets are provided between the detection reference rod and the crossbeam, and the mounting brackets are fixedly connected to the detection reference rod and the crossbeam respectively.

[0015] As a further improvement to the above technical solution, multiple adjusting brackets are arranged between the detection reference rod and the crossbeam. The adjusting brackets are fixedly connected to the crossbeam and adjustablely connected to the detection reference rod.

[0016] As a further improvement to the above technical solution, the adjusting bracket is threaded through an adjusting screw, and the adjusting screw abuts against the detection reference rod.

[0017] As a further improvement to the above technical solution, the rear plate is provided with a mold-locking cylinder, the extrusion cylinder is provided with a connecting cylinder that runs through the front and rear, the front end of the piston rod of the mold-locking cylinder passes through the connecting cylinder, and the front end of the piston rod of the mold-locking cylinder is coaxially threaded with a locking nut and an anti-loosening nut.

[0018] As a further improvement to the above technical solution, the anti-loosening nut is provided with multiple anti-loosening screws, which abut against the locking nut axially.

[0019] As a further improvement to the above technical solution, the piston rod of the mold-locking cylinder is provided with an anti-loosening flat key at its front end. The anti-loosening flat key extends radially and is embedded in the front end of the piston rod of the mold-locking cylinder and the front end of the anti-loosening nut. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0021] Figure 1 This is a side view of an embodiment of the extruder centering structure provided by this utility model;

[0022] Figure 2 yes Figure 1 A magnified view of a portion of region A in the middle;

[0023] Figure 3 This is a rear sectional view of an embodiment of the extruder centering structure provided by this utility model;

[0024] Figure 4 yes Figure 3 A magnified view of a portion of region B in the middle;

[0025] Figure 5 This is a partial three-dimensional schematic diagram of the crossbeam position in one embodiment of the extruder centering structure provided by this utility model;

[0026] Figure 6 yes Figure 5 A magnified view of a portion of region C in the middle;

[0027] Figure 7 yes Figure 5 A magnified view of a portion of region D in the middle;

[0028] Figure 8 yes Figure 5 A magnified view of a portion of region E in the middle.

[0029] In the diagram: 10-Front plate, 20-Rear plate, 30-Crossbeam, 40-Extrusion cylinder, 50-Middle plate, 100-Detection reference rod, 110-Detection reference surface, 200-Detection arm, 210-Connecting end, 220-Detection end, 221-Detection mounting plate, 300-Distance measuring unit, 400-Mounting bracket, 500-Adjusting bracket, 600-Piston rod, 610-Locking nut, 620-Anti-loosening nut, 621-Anti-loosening screw, 630-Anti-loosening key, 700-Connecting cylinder. Detailed Implementation

[0030] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, if there are words such as "several", they mean one or more, "multiple" means two or more, "greater than", "less than", "exceeding" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] Reference Figures 1 to 8 The centering structure of the extruder of this utility model is described in the following embodiment:

[0035] An extruder centering structure includes an extruder. The extruder includes a front plate 10, a rear plate 20, and a crossbeam 30. The front plate 10 and the rear plate 20 are arranged front to back. The crossbeam 30 extends in the front-back direction and is disposed between the front plate 10 and the rear plate 20. The front and rear ends of the crossbeam 30 are fixedly connected to the front plate 10 and the rear plate 20, respectively.

[0036] An extrusion cylinder 40 and a middle plate 50 are provided between the front plate 10 and the rear plate 20. The extrusion cylinder 40 and the middle plate 50 are both slidably connected to the crossbeam 30 in the front-rear direction.

[0037] The extruder centering structure further includes a detection reference rod 100 and a detection arm 200, both of which are elongated. The detection reference rod 100 is positioned along the front-to-back direction on one side of the crossbeam 30. The detection arm 200 has a connecting end 210 and a detection end 220. The connecting end 210 is fixedly connected to the extrusion cylinder 40 or the middle plate 50. The detection end 220 is located beside the detection reference rod 100 and has a ranging unit 300 facing the detection reference rod 100.

[0038] In practical use, the ranging unit 300 can reflect the distance between the detection end 220 and the reference rod. When the extrusion cylinder 40 and the middle plate 50 move back and forth relative to the front plate 10 and the rear plate 20, the detection arm 200 can move with the extrusion cylinder 40 and the middle plate 50, and during the movement, the ranging unit 300 can always face the detection reference rod 100, thereby monitoring the movement deviation of the extrusion cylinder 40 and the middle plate 50 through the ranging unit 300, and avoiding the centering error from increasing due to equipment loosening. At the same time, the detection reference rod 100 can provide a basis for centering calibration, making it easier to complete the centering calibration and debugging process.

[0039] In this embodiment, the detection reference rod 100 has two mutually perpendicular detection reference surfaces 110. The detection end 220 is provided with two ranging units 300. The two ranging units 300 are respectively arranged facing the two detection reference surfaces 110.

[0040] See attached document Figure 6 and Figure 7 The detection reference rod 100 is a long, rectangular rod. The cross-section of the detection reference rod 100 is rectangular. Two of the outer surfaces of the detection reference rod 100 are two detection reference surfaces 110. The two detection reference surfaces 110 are perpendicular to the vertical and horizontal directions, respectively.

[0041] In the extruder, there are four crossbeams 30. The four crossbeams 30 are respectively located at the four corners of the front plate 10 and the rear plate 20. In this embodiment, there are two detection reference rods 100. The two detection reference rods 100 are arranged in pairs, left and right, and are respectively located on the sides of the two crossbeams 30 at the bottom of the extruder.

[0042] For ease of installation and debugging, the detection reference rod 100 is preferably located on the outward-facing side of the crossbeam 30. It is worth noting that, in its projection in the front-rear direction, the detection reference rod 100 needs to be positioned away from the extrusion cylinder 40 and the middle plate 50 to avoid obstructing their movement.

[0043] The detection end 220 is provided with an L-shaped detection mounting plate 221. Two ranging units 300, facing the two detection reference surfaces 110, are respectively mounted on two perpendicular surfaces of the detection mounting plate 221. In this embodiment, the ranging unit 300 can employ ranging elements such as a laser ranging sensor or an infrared ranging sensor, or other existing position sensors; detailed examples and descriptions are not provided here.

[0044] Since the extrusion cylinder 40 has a large size in the front-to-back direction, in order to improve the detection accuracy, in this embodiment, the extrusion cylinder 40 is provided with detection arms 200 at both the front and rear ends.

[0045] Multiple mounting brackets 400 and multiple adjusting brackets 500 are provided between the detection reference rod 100 and the crossbeam 30. In the left-right direction, the side of the detection reference rod 100 closer to the crossbeam 30 is designated as the inner side, and the side farther from the crossbeam 30 is designated as the outer side. Both the mounting brackets 400 and the adjusting brackets 500 are connected to the lower end face and the inner end face of the detection reference rod 100, and the upper end face and the outer end face of the detection reference rod 100 are respectively two detection reference surfaces 110.

[0046] The mounting brackets 400 are fixedly connected to the detection reference rod 100 and the crossbeam 30, respectively. At least two mounting brackets 400 are respectively disposed at the front and rear ends of the detection reference rod 100. In this embodiment, there are multiple mounting brackets 400, which are arranged in a front-rear direction. One end of each mounting bracket 400 is fixedly connected to the crossbeam 30, and the other end has an L-shaped mounting groove. The lower end face and the inner end face of the detection reference rod 100 abut against the two groove surfaces of the mounting groove, respectively. A mounting screw passes through the mounting groove, passes through the mounting bracket 400, and is threadedly connected to the detection reference rod 100, thereby locking and fixing the detection reference rod 100 onto the mounting bracket 400.

[0047] One end of the adjusting bracket 500 is fixedly connected to the crossbeam 30, and the other end is tunably connected to the detection reference rod 100. Specifically, one end of the adjusting bracket 500 is located on the lower side of the detection reference rod 100 and has an adjusting screw hole that extends vertically. An adjusting screw is threaded into the adjusting screw hole, and the upper end of the adjusting screw abuts against the detection reference rod 100. In actual use, multiple adjusting brackets 500 are arranged at equal intervals along the front-back direction, and the lower side of the detection reference rod 100 is tightened by the adjusting screw to achieve leveling of the detection reference rod 100.

[0048] The rear plate 20 is equipped with a mold-locking cylinder, and the extrusion cylinder 40 is equipped with a connecting cylinder 700 that extends through the front and rear. The front end of the piston rod 600 of the mold-locking cylinder passes through the connecting cylinder 700. To prevent the connection between the piston rod 600 and the connecting cylinder 700 from becoming loose and affecting alignment, in this embodiment, the front end of the piston rod 600 of the mold-locking cylinder is coaxially threaded with a locking nut 610 and an anti-loosening nut 620.

[0049] The locking nut 610 is threadedly locked to the end of the piston rod 600, pressing the connecting cylinder 700 against the front end of the piston rod 600. The anti-loosening nut 620 is coaxially threaded and located on the side of the locking nut 610 away from the connecting cylinder 700. The anti-loosening nut 620 abuts against the locking nut 610 axially through its own thread force, achieving double-nut anti-loosening.

[0050] The anti-loosening nut 620 is threaded with a plurality of anti-loosening screws 621, which extend axially. The anti-loosening screws 621 abut against the locking nut 610 axially. The anti-loosening screws 621 further increase the axial force between the anti-loosening nut 620 and the locking nut 610, thereby improving the anti-loosening performance.

[0051] In a further embodiment, the piston rod 600 of the mold-locking cylinder is provided with an anti-loosening key 630 at its front end. The anti-loosening key 630 extends radially and is embedded in the front end of the piston rod 600 and the front end of the anti-loosening nut 620. Specifically, the front end of the piston rod 600 is provided with a first anti-loosening keyway extending radially. The front end of the anti-loosening nut 620 is provided with a second anti-loosening keyway extending radially. The first and second anti-loosening keyways are aligned with each other on the same straight line. The middle part of the anti-loosening key 630 is embedded in the first anti-loosening keyway, and both ends of the anti-loosening key 630 are embedded in the second anti-loosening keyway of the anti-loosening nut 620. Through the cooperation of the anti-loosening key 630 with the first and second anti-loosening keyways, the relative rotation between the anti-loosening nut 620 and the piston rod 600 is restricted, thereby achieving hard-limit anti-loosening and avoiding affecting alignment.

[0052] The first anti-loosening keyway is provided with a screw that passes through the anti-loosening flat key 630 along the axial direction, thereby realizing the locking and fixing of the anti-loosening flat key 630 in the first anti-loosening keyway.

[0053] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] Although embodiments of the present invention have been shown and described, those skilled in the art can make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention. All such changes, modifications, equivalent alterations or substitutions are included within the scope defined by the claims of this application, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An extruder centering structure, comprising a front plate and a rear plate arranged front to back, and a crossbeam fixedly disposed between the front plate and the rear plate, wherein an extrusion cylinder and a middle plate are further disposed between the front plate and the rear plate and slidably connected to the crossbeam; characterized in that: Also includes: The detection reference rod is long and strip-shaped and is set on the crossbeam along the front-to-back direction; The detection arm has a connecting end and a detection end. The connecting end is fixedly connected to the extrusion cylinder or the middle plate. The detection end is located beside the detection reference rod and is provided with a distance measuring unit facing the detection reference rod.

2. The extruder centering structure according to claim 1, characterized in that: The detection reference rod has two mutually perpendicular detection reference surfaces, and the detection end is provided with two ranging units facing the two detection reference surfaces respectively.

3. The extruder centering structure according to claim 2, characterized in that: The two detection reference planes are perpendicular to the vertical and horizontal directions, respectively.

4. The extruder centering structure according to claim 3, characterized in that: The detection reference rod is a square rod with a rectangular cross-section.

5. The extruder centering structure according to claim 1, characterized in that: Multiple mounting brackets are provided between the detection reference rod and the crossbeam, and the mounting brackets are fixedly connected to the detection reference rod and the crossbeam respectively.

6. The extruder centering structure according to claim 5, characterized in that: Multiple adjusting brackets are arranged between the detection reference rod and the crossbeam. The adjusting brackets are fixedly connected to the crossbeam and adjustablely connected to the detection reference rod.

7. The extruder centering structure according to claim 6, characterized in that: The adjusting bracket is threaded through an adjusting screw, which abuts against the detection reference rod.

8. The extruder centering structure according to claim 1, characterized in that: The rear plate is provided with a mold-locking cylinder, the extrusion cylinder is provided with a connecting cylinder that runs through the front and rear, the front end of the piston rod of the mold-locking cylinder passes through the connecting cylinder, and the front end of the piston rod of the mold-locking cylinder is coaxially threaded with a locking nut and an anti-loosening nut.

9. The extruder centering structure according to claim 8, characterized in that: The anti-loosening nut is threaded with multiple anti-loosening screws, which abut against the locking nut axially.

10. The extruder centering structure according to claim 8, characterized in that: The piston rod of the mold-locking cylinder is provided with an anti-loosening key at its front end. The anti-loosening key extends radially and is embedded in the front end of the piston rod of the mold-locking cylinder and the front end of the anti-loosening nut.

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