A high rigidity gantry, extrusion apparatus and method of operation thereof

Abstract

The present application relates to a high-rigidity frame, an extruding device and an operating method thereof. The high-rigidity frame comprises a cantilever frame, a short frame, a frame connecting piece and a driving mechanism, the driving mechanism is arranged on the cantilever frame section, and the driving frame connecting piece is connected with or separated from the short frame. In addition, the present application also relates to an extruding device adopting the high-rigidity frame and an operating method of the extruding device. By arranging the driving mechanism on the cantilever frame section and movably connecting the frame connecting piece with the short frame, the open frame can be changed into a closed frame, the problems of large opening and large deformation are solved, the rigidity is improved, the rigidity of the frame is effectively improved, and the working stability and reliability of the extruding device are improved.

Description

[0001] This application is a divisional application of the invention patent application filed on December 11, 2024, with application number 202411815996.1 and invention title "High-rigidity frame, extrusion equipment and its operating method". Technical Field

[0002] This invention belongs to the field of metallurgical equipment technology, specifically relating to a high-rigidity frame, an extrusion device, and its operating method. Background Technology

[0003] Continuous strip handling units often include various extrusion roller devices 100, such as pinch rollers, squeeze rollers, and coating machines. These devices use the squeezing action between the rollers 101 to either move the strip, remove liquid from its surface, or apply various coatings to it. The roller surfaces of these devices are prone to wear due to friction with the strip, thus requiring frequent replacement. Figure 1 To reduce strip production loss caused by online roller replacement 101, an offline roller replacement method is conventionally adopted. This means the equipment is located in the working position of the unit during operation, moved to the offline maintenance position during maintenance, and then moved back to the working position after maintenance is completed. It is common practice to arrange two sets of this type of equipment in parallel on the unit, allowing the two sets to alternate between the working and maintenance positions.

[0004] For roller-type equipment 100, an open frame is more convenient to enable frequent movement between the unit's working and maintenance positions; such as Figure 2 A commonly used open-type frame is formed by combining a cantilever frame 102 and a short frame 103. However, for the aforementioned extrusion roller equipment 100, the rollers 101 need to contact each other and extrude the strip during operation, and during maintenance, the upper and lower rollers 101 need to be far apart to form sufficient space. Due to the large extrusion pressure between the rollers during operation, the open-type frame is prone to deformation, which in turn leads to a large difference in extrusion pressure on both sides of the rollers 101, affecting the quality of strip steel production. Summary of the Invention

[0005] This invention relates to a high-rigidity frame, an extrusion apparatus using the high-rigidity frame, and an operating method for the extrusion apparatus, which at least solves some of the defects of the prior art.

[0006] This invention relates to a high-rigidity frame, comprising: The cantilever frame includes an upright frame section mounted on a frame foundation and a cantilever frame section connected to the top of the upright frame section; A short frame, which is located directly below the cantilever end of the cantilever frame section and has an opening gap between it and the cantilever end; A frame connector and a drive mechanism are provided, the drive mechanism being disposed on the cantilever frame section, the frame connector being connected to the drive mechanism and having a connection position movable to connect with the short frame and a standby position detached from the short frame.

[0007] As one embodiment, the frame connector includes a hook plate, and a pressure plate suitable for being hooked by the hook plate is provided on the target frame at the hook plate connection position.

[0008] As one embodiment, the driving mechanism includes a rotary telescopic cylinder, and the hook plate is installed at the output end of the rotary telescopic cylinder; when the rotary telescopic cylinder is installed on the cantilever frame section, the extension direction of the rotary telescopic cylinder is downward.

[0009] As one embodiment, the drive mechanism further includes a lifting drive cylinder, which is mounted on a corresponding frame and has a cylinder support at its output end, and the rotary telescopic cylinder is mounted on the cylinder support.

[0010] As one embodiment, the high-rigidity frame further includes a guide unit, which is arranged on the same frame as the lifting drive cylinder, and the cylinder support is guided and cooperated with the guide unit.

[0011] As one implementation method, the lifting drive cylinder and the rotary telescopic cylinder are integrated into a dual-acting cylinder.

[0012] As one embodiment, both the short frame and the upright frame section are provided with a lower roller bearing seat mounting position, and a lower roller lifting device is also provided on the frame base, with the lower roller lifting device arranged adjacent to at least one of the lower roller bearing seat mounting positions.

[0013] As one implementation, the frame base includes a walkable base, and both the upright frame section and the short frame are mounted on the walkable base.

[0014] The present invention also relates to an extrusion apparatus, including a frame and work rolls arranged on the frame, the frame being a high-rigidity frame as described above.

[0015] The present invention also relates to a method of operating the above-mentioned extrusion equipment, comprising: When the extrusion equipment is put into production, the frame connector is positioned in the connection position to achieve a rigid connection between the short frame and the cantilever frame. When maintaining the extrusion equipment, the frame connector should be placed in the standby position before performing the relevant maintenance work.

[0016] The present invention has at least the following beneficial effects: In this invention, a frame connector is used to connect the short frame and the cantilever frame section. This connection can transform the open frame into a closed frame, solving the problems of large frame openings and large deformations, effectively improving the rigidity of the frame, and thus improving the working stability and reliability of the extrusion equipment.

[0017] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0018] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the present invention will be briefly described below. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0019] Figure 1 A schematic diagram of the parallel arrangement of existing roller equipment is provided for the background art; Figure 2 A schematic diagram of the structure of existing roller-type equipment is provided for the background art; Figure 3 and Figure 4 This is a schematic diagram of the extrusion device in the maintenance position according to an embodiment of the present invention; Figure 5 and Figure 6 This is a schematic diagram of the extrusion device in the working position according to an embodiment of the present invention; Explanation of reference numerals in the attached figures: 100. Roller equipment; 101. Roller; 102. Cantilever frame (existing technology); 103. Short frame (existing technology); 11. Cantilever frame; 111. Cantilever frame section; 112. Vertical frame section; 12. Short frame; 131. Upper roller; 132. Lower roller; 14. Travelable base; 151. Hook plate; 152. Rotary telescopic cylinder; 153. Lifting drive cylinder; 154. Cylinder support; 155. Guide unit. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1 like Figures 3-6 This invention provides a high-rigidity frame, comprising: The cantilever frame 11 includes an upright frame section 112 mounted on a frame foundation and a cantilever frame section 111 connected to the top of the upright frame section 112. Short frame 12, which is located directly below the cantilever end of cantilever frame section 111 and has an opening gap between it and the cantilever end; A rack connector and a drive mechanism, wherein the drive mechanism is disposed on the short rack 12, the rack connector is connected to the drive mechanism and has a connection position movable to connect with the cantilever rack section 111 and a standby position separate from the cantilever rack section 111; or, the drive mechanism is disposed on the cantilever rack section 111, the rack connector is connected to the drive mechanism and has a connection position movable to connect with the short rack 12 and a standby position separate from the short rack 12.

[0022] The cantilever frame 11 is provided with an upper roller bearing seat mounting position for installing the upper roller bearing seat. There are generally two upper roller bearing seats, and the two ends of the upper roller 131 are respectively installed on the two upper roller bearing seats. Accordingly, there are two upper roller bearing seat mounting positions. The two upper roller bearing seat mounting positions can both be located in the cantilever frame section 111, or one can be located in the cantilever frame section 111 and the other can be located in the upright frame section 112.

[0023] Preferably, both the short frame 12 and the upright frame section 112 are provided with lower roller bearing seat mounting positions, and a lower roller lifting device is also provided on the frame base. The lower roller lifting device is arranged adjacent to at least one of the lower roller bearing seat mounting positions. The lower roller bearing seat mounting positions are used to install the lower roller bearing seats, that is, when the two lower roller bearing seats are respectively installed on the short frame 12 and the upright frame section 112; by setting the lower roller lifting device, the lower roller 132 can be driven to rise and fall. Therefore, the lower roller bearing seats can rise and fall relative to the short frame 12 and the upright frame section 112. Correspondingly, the lower roller bearing seats are movably mounted on the short frame 12 and the upright frame section 112, including but not limited to setting guide rails on the short frame 12 and the upright frame section 112. The guiding direction of the guide rails is parallel to the vertical, and the lower roller bearing seats are movably mounted on the corresponding guide rails. The guide rails constitute the lower roller bearing seat mounting positions. The aforementioned lower roller lifting device includes, but is not limited to, the use of hydraulic cylinders, pneumatic cylinders, etc.; preferably, driving devices are configured for each of the two lower roller bearing seats, that is, the lower roller lifting device includes two sets of lower roller lifting units, and the two sets of lower roller lifting units are respectively arranged adjacent to the mounting positions of the two lower roller bearing seats.

[0024] The aforementioned cantilever frame 11 and short frame 12 are combined to form an open frame. The frame connector is used to connect the short frame 12 with the cantilever frame section 111. Through this connection, the open frame can be transformed into a closed frame, solving the problems of large frame opening and large deformation, effectively improving the rigidity of the frame, and thus improving the working stability and reliability of the extrusion equipment.

[0025] The aforementioned rack connectors include, but are not limited to, hook plates 151, with a pressure plate on the target rack at the hook plate connection position suitable for being hooked by the hook plate 151. In another embodiment, the rack connector can also be a threaded connector (threaded to the corresponding target rack), a clamping member (e.g., gripping the corresponding target rack), etc.

[0026] In one embodiment, such as Figures 3-6 The driving mechanism includes a rotary telescopic cylinder 152, and the hook plate 151 is installed at the output end of the rotary telescopic cylinder 152. When the rotary telescopic cylinder 152 is installed on the short frame 12, the extension direction of the rotary telescopic cylinder 152 is upward. When the rotary telescopic cylinder 152 is installed on the cantilever frame section 111, the extension direction of the rotary telescopic cylinder 152 is downward.

[0027] The rotary telescopic cylinder 152 can drive the frame connector to rise, fall, and rotate. The piston rod of the rotary telescopic cylinder 152 extends along a curve at a specific angle, that is, the piston rod extends and rotates at a specific angle at the same time. This method is particularly suitable for the case where the frame connector uses a hook plate 151, which can avoid interference between the hook plate 151 fixed to the piston rod end of the rotary telescopic cylinder 152 and the target frame when it rises or falls. Taking the rotary telescopic cylinder 152 installed on the short frame 12 as an example, the hook plate 151 rises and rotates at a certain angle at the same time, which can hook the cantilever frame section 111 in one step.

[0028] The lifting stroke requirements of the frame connector can be directly met by the aforementioned rotary telescopic cylinder 152, in which case the rotary telescopic cylinder 152 can be directly installed on the corresponding frame. However, as a preferred solution, such as Figures 3-6 The driving mechanism further includes a lifting drive cylinder 153, which is mounted on the corresponding frame and has a cylinder support 154 at its output end. The rotary telescopic cylinder 152 is mounted on the cylinder support 154. In this design, the combination of the lifting drive cylinder 153 and the rotary telescopic cylinder 152 effectively avoids interference between the hook plate 151 and the frame during the lifting and lowering process, resulting in higher reliability. This ensures that the hook plate 151 moves away from the frame during lifting and lowering, and smoothly inserts into the corresponding frame for a pressing connection or detaches from the frame after lifting and lowering.

[0029] The aforementioned lifting drive cylinder 153 and rotary telescopic cylinder 152 can each be a single-acting cylinder; or, the lifting drive cylinder 153 and the rotary telescopic cylinder 152 can be integrated into a double-acting cylinder, that is, a double-piston rod bidirectional hydraulic cylinder, with the two piston rods extending and retracting in opposite directions. This method can further simplify the structure of the drive mechanism and facilitate the layout of on-site equipment.

[0030] Furthermore, the high-rigidity frame also includes a guide unit 155, which is arranged on the same frame as the lifting drive cylinder 153. The cylinder support 154 is guided and cooperates with the guide unit 155. The guide unit 155 includes, but is not limited to, guiding methods such as slider-rail and guide shaft-guide sleeve. By setting the guide unit 155, the stability and reliability of the lifting of the frame connector can be improved.

[0031] In another embodiment, the above-mentioned drive mechanism can also be a combination of a lifting drive device and a rotary drive device. The lifting drive device can be a drive cylinder, and the rotary drive device can be a motor, etc. In this scheme, it is advisable to avoid the motor bearing axial force. For example, a transmission structure such as a motor + gear assembly can be used to drive the rotary seat.

[0032] The aforementioned short frame 12 and cantilever frame 11 can be directly installed on the workshop foundation or on a base. Optionally, such as Figures 3-6 The frame base includes a movable base 14, and the upright frame section 112 and the short frame 12 are both mounted on the movable base 14, so that the frame can be switched between the working position and the maintenance position, which facilitates the maintenance of the equipment using the frame.

[0033] Figures 3 to 6 In the structure shown, when the rotary telescopic cylinder 152 is installed on the cantilever frame section 111 with its extension direction facing downwards, and the hook plate 151 descends to hook the pressure plate on the short frame 12, it is an embodiment of the high rigidity frame of the present invention; other marked positions in the figure are only original illustrations of the parent case and do not constitute a limitation on the scope of protection of this divisional case.

[0034] Example 2 like Figures 3-6 The present invention also relates to an extrusion apparatus, including a frame and work rolls arranged on the frame, the frame being a high-rigidity frame as provided in Embodiment 1 above.

[0035] The present invention also relates to a method of operating the above-mentioned extrusion equipment, comprising: When the extrusion equipment is put into production, the frame connector is positioned in the connection position to achieve a rigid connection between the short frame 12 and the cantilever frame 11. When maintaining the extrusion equipment, the frame connector should be placed in the standby position before performing the relevant maintenance work.

[0036] Obviously, the switching of the workstation where the frame connector is located is achieved through the aforementioned drive mechanism. The specific structure and driving method of the drive mechanism have been described in the above embodiment one, and will not be repeated here.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-rigidity frame, characterized in that, include: The cantilever frame includes an upright frame section mounted on a frame foundation and a cantilever frame section connected to the top of the upright frame section; A short frame, which is located directly below the cantilever end of the cantilever frame section and has an opening gap between it and the cantilever end; A frame connector and a drive mechanism are provided, the drive mechanism being disposed on the cantilever frame section, the frame connector being connected to the drive mechanism and having a connection position movable to connect with the short frame and a standby position detached from the short frame.

2. The high-rigidity frame according to claim 1, characterized in that, The frame connector includes a hook plate, and the short frame is fitted with a pressure plate suitable for being hooked by the hook plate.

3. A high-rigidity frame according to claim 2, characterized in that, The drive mechanism includes a rotary telescopic cylinder, and the hook plate is installed at the output end of the rotary telescopic cylinder; when the rotary telescopic cylinder is installed on the cantilever frame section, the extension direction of the rotary telescopic cylinder is downward.

4. A high-rigidity frame according to claim 3, characterized in that, The drive mechanism also includes a lifting drive cylinder, which is mounted on the cantilever frame section and has a cylinder support at its output end. The rotary telescopic cylinder is mounted on the cylinder support.

5. A high-rigidity frame according to claim 4, characterized in that, It also includes a guide unit, which is arranged on the same frame as the lifting drive cylinder, and the cylinder support is guided and cooperated with the guide unit.

6. A high-rigidity frame according to claim 4, characterized in that, The lifting drive cylinder and the rotary telescopic cylinder are integrated into a dual-acting cylinder.

7. A high-rigidity frame according to claim 1, characterized in that, Both the short frame and the upright frame section are provided with lower roller bearing seat mounting positions. A lower roller lifting device is also provided on the frame base, and the lower roller lifting device is arranged adjacent to at least one of the lower roller bearing seat mounting positions.

8. A high-rigidity frame according to claim 1, characterized in that, The frame foundation includes a movable base, and both the upright frame section and the short frame are mounted on the movable base.

9. An extrusion apparatus, comprising a frame and work rolls arranged on the frame, characterized in that: The frame is a high-rigidity frame as described in any one of claims 1 to 8.

10. The operating method of the extrusion equipment as described in claim 9, characterized in that, include: When the extrusion equipment is put into production, the frame connector is positioned in the connection position to achieve a rigid connection between the short frame and the cantilever frame. When maintaining the extrusion equipment, the frame connector should be placed in the standby position before performing the relevant maintenance work.

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