Rolling die and plate rolling machine

Abstract

The utility model provides a kind of coiling mould and plate bending machine, comprising: two outer moulds, cover and set in the compression roller of the plate bending machine;Inner mould assembly, cover and set in the compression roller, and it is located between two the outer mould along the roller shaft direction of the compression roller, the inner mould assembly and the outer mould form the clamping gap for the board to be processed to extend into between, the inner mould assembly includes connecting sleeve and two slip rings respectively covered and set in both ends of the connecting sleeve, the slip ring can be moved relative to the connecting sleeve, to adapt to the U-shaped workpiece of different width base plate.The utility model coiling mould versatility is stronger, can be adapted to multiple specifications U-shaped workpiece by adjusting mould, and disassembly is relatively convenient, can ensure U-shaped workpiece coiling efficiency, and also avoid the additional cost of reforming plate bending machine.

Description

Technical Field

[0001] This utility model belongs to the technical field of plate rolling machines, and particularly relates to a rolling mold and a plate rolling machine. Background Technology

[0002] Currently, when rolling U-shaped workpieces such as the primary cone reinforcing ring in the detachable powder silo of a concrete mixing plant, a special grooved plate rolling machine is required to roll the plate. However, the grooved plate rolling machine has poor versatility and cannot be adapted to all specifications of U-shaped workpieces. This results in different special grooved plate rolling machines being required to roll the plate when producing U-shaped workpieces of different specifications, leading to higher production costs.

[0003] When using a general-purpose plate rolling machine, only channel steel can be used as a substitute for sheet metal. Currently, channel steel is rolled using a three-roll plate rolling machine. The main process is generally sawing-rolling-flame cutting: a certain length of channel steel is cut on a saw; it is then fed to the plate rolling machine for rolling; after rolling, flame cutting is performed. The resulting cut is uneven, affecting the arrangement of subsequent processes. Therefore, using channel steel for rolling not only wastes materials and increases production costs, but also, due to the large wall thickness of the channel steel, the three-roll plate rolling machine cannot accommodate all sizes of channel steel when producing U-shaped workpieces of different specifications, and rolling is difficult. Utility Model Content

[0004] The main purpose of this utility model is to propose a rolling mold and a plate rolling machine, which aims to solve the technical problem that the existing rolling device for U-shaped workpieces cannot be adapted to U-shaped workpieces of different specifications.

[0005] To achieve the above objectives, this utility model provides a rolling die for a plate rolling machine that processes U-shaped workpieces. The rolling die includes: two outer dies fitted onto the pressure rollers of the plate rolling machine; and an inner die assembly fitted onto the pressure rollers and located between the two outer dies along the roller axis of the pressure rollers. A clamping gap is formed between the inner die assembly and the outer dies for the plate to be processed to extend into. The inner die assembly includes a connecting sleeve and two slip rings respectively fitted onto both ends of the connecting sleeve. The slip rings can move relative to the connecting sleeve to accommodate U-shaped workpieces with base plates of different widths.

[0006] In this embodiment of the invention, the inner mold assembly further includes a wedge block movably connected to the connecting sleeve. The wedge block is positioned and supported between the two slip rings and is used to limit the slip rings relative to the connecting sleeve.

[0007] In this embodiment of the utility model, the wedge block is movably connected to the connecting sleeve by an adjusting bolt, the slip ring is provided with a conical surface that cooperates with the wedge block, one of the conical surface and the wedge block is provided with a limiting protrusion, and the other is provided with a limiting groove that cooperates with the limiting protrusion.

[0008] In this embodiment of the invention, the number of wedge blocks is at least two, and the at least two wedge blocks are arranged at radial intervals along the slip ring.

[0009] In this embodiment of the utility model, one of the connecting sleeve and the slip ring is provided with a slide rail extending along the direction of the roller shaft, and the other is provided with a guide groove that slides and engages with the slide rail; and / or, the inner mold assembly further includes an elastic limiting member, the two ends of which are respectively connected to the two slip rings; and / or, the inner side of the outer mold is provided with an anti-slip surface that engages with the pressure roller.

[0010] In this embodiment of the invention, the outer mold includes two detachably connected semi-rings.

[0011] In this embodiment of the invention, the two semi-rings are detachably connected by a threaded connector, one of the semi-rings being provided with a light hole and the other semi-ring being provided with a thread hole.

[0012] In this embodiment of the invention, the outer wall of the semi-ring is provided with a receiving groove with an open side, the receiving groove being used to receive the threaded connector.

[0013] This utility model also proposes a plate rolling machine, which includes a base, a pressure roller mounted on the base, and a rolling die as described above.

[0014] In this embodiment of the utility model, the pressure roller includes an upper roller and two side rollers located below the upper roller. The two side rollers are arranged sequentially along the length direction of the material to be processed, and the rolling die is installed on the upper roller.

[0015] Through the above technical solution, the rolling die provided by this utility model embodiment has the following beneficial effects: The outer die in the rolling die can be sleeved on the pressure roller of the plate rolling machine, and the inner die assembly can be sleeved on the pressure roller and located between the two outer dies, so that a clamping gap is formed between the inner die assembly and the outer dies for the plate to be processed to extend into. The outer dies and the pressure roller are connected by a sleeved movable connection. The width of the clamping gap can be adjusted by moving the outer dies relative to the inner die assembly, so that the clamping gap can be adapted to the plate to be processed with different thicknesses, making the plate rolling machine more versatile. The inner die assembly includes a connecting sleeve sleeved on the pressure roller and two slip rings sleeved on the connecting sleeve. The connecting sleeve and the pressure roller... The clamping gap is secured by a tightening bolt, preventing rotation between the connecting sleeve and the pressure roller. Specifically, the clamping gap is located between the slip ring and the outer mold. By moving the slip ring relative to the connecting sleeve and adjusting the distance between the two slip rings, the width of the entire inner mold assembly can be adjusted, allowing the inner mold assembly to adapt to U-shaped workpieces with different base plate widths. Furthermore, the rolling mold and pressure roller in this embodiment are detachably connected, requiring no modification to the main structure of the plate rolling machine, preserving its original functions, and reducing costs. Different slip rings with different outer diameters can be used to adapt to different side plate heights of the U-shaped workpiece. The rolling mold in this embodiment is highly versatile, adapting to various specifications of U-shaped workpieces through mold adjustment, and is easy to disassemble. This ensures efficient U-shaped workpiece rolling while avoiding the additional costs of modifying the plate rolling machine.

[0016] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a structural schematic diagram of a plate rolling machine according to one embodiment of the present invention; Figure 2 This is a schematic diagram of the inner mold assembly structure of a rolling mold according to one embodiment of the present invention; Figure 3 This is a schematic diagram of the slip ring and wedge block structure of the rolling die according to one embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the slip ring and connecting sleeve in a rolling die according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the outer mold structure of a rolling die according to an embodiment of the present invention; Figure 6 This is a structural schematic diagram of a U-shaped workpiece according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of a U-shaped workpiece according to an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures Detailed Implementation

[0019] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0020] The rolling die according to the present invention is described below with reference to the accompanying drawings.

[0021] like Figures 1 to 5 As shown, the rolling die 100 is used in the plate rolling machine 300 to process U-shaped workpieces 200. The rolling die 100 includes an inner die assembly 2 and two outer dies 1. The two outer dies 1 are sleeved on the outside of the pressure roller 320 of the plate rolling machine 300. The inner die assembly 2 is sleeved on the outside of the pressure roller 320 and is located between the two outer dies 1 along the roller axis direction of the pressure roller 320. A clamping gap is formed between the inner die assembly 2 and the outer dies 1 for the plate to be processed to extend into. The inner die assembly 2 includes a connecting sleeve 21 and two slip rings 22 respectively sleeved on both ends of the connecting sleeve 21. The slip rings 22 can move relative to the connecting sleeve 21 to adapt to U-shaped workpieces 200 with different width base plates.

[0022] Understandably, the rolling die 100 in this embodiment is used by the plate rolling machine 300 to process the U-shaped workpiece 200. In one embodiment, the structural diagram of the U-shaped workpiece 200 is shown below. Figure 6 As shown, in another embodiment, the cross-sectional structure of the U-shaped workpiece 200 is as follows: Figure 7 As shown, the thickness of the U-shaped workpiece 200 is T, the width of the bottom plate of the U-shaped workpiece 200 is A, the height of one side plate of the U-shaped workpiece 200 is B, and the height of the other side plate of the U-shaped workpiece 200 is C. It should be noted that the U-shaped workpiece 200 can be U-shaped steel / channel steel.

[0023] In this embodiment, the outer mold 1 of the rolling die 100 can be sleeved on the pressure roller 320 of the plate rolling machine 300, and the inner mold assembly 2 can be sleeved on the pressure roller 320 and located between the two outer molds 1, so that a clamping gap is formed between the inner mold assembly 2 and the outer mold 1 for the plate to be processed to extend into. The outer mold 1 and the pressure roller 320 are connected by a sleeved movable connection. The width of the clamping gap can be adjusted by moving the outer mold 1 relative to the inner mold assembly 2, so that the clamping gap can be adapted to different thicknesses (i.e., Figure 7The plate to be processed (T) makes the plate rolling machine 300 more versatile. The inner mold assembly 2 includes a connecting sleeve 21 sleeved outside the pressure roller 320 and two slip rings 22 sleeved outside the connecting sleeve 21. The connecting sleeve 21 and the pressure roller 320 can be fixed together by tightening bolts to prevent rotation between them. Specifically, the clamping gap is located between the slip rings 22 and the outer mold 1. By moving the slip rings 22 relative to the connecting sleeve 21 and adjusting the distance between the two slip rings 22, the width of the entire inner mold assembly 2 can be adjusted, allowing the inner mold assembly 2 to adapt to different widths of base plates (i.e.,...). Figure 7 The U-shaped workpiece 200 in (A) of this embodiment is detachably connected to the rolling die 100 and the pressure roller 320, without requiring modification to the main structure of the rolling machine 300. This retains the original functions of the rolling machine 300, resulting in lower costs. Furthermore, by replacing slip rings 22 with different outer diameters, the design can accommodate different side plate heights of the U-shaped workpiece 200 (i.e.,...). Figure 7 (B and C in the example). The rolling die 100 in this embodiment is highly versatile and can be adapted to various specifications of U-shaped workpieces 200 by adjusting the die. It is also easy to disassemble, which can ensure the rolling efficiency of U-shaped workpieces 200 while avoiding the additional cost of modifying the plate rolling machine 300.

[0024] The plate rolling machine 300 equipped with the rolling die 100 can adapt to the processing of U-shaped workpieces 200 of different specifications. It does not require the use of a special grooved plate rolling machine 300 for rolling. After the plate to be processed is cut and bent into a straight section of the cross-sectional shape, it can be used to roll the U-shaped workpiece 200. Instead of using channel steel for rolling in the existing technology, the height of the rolled side plate can adapt to the different specifications of U-shaped workpieces 200. The fire cutting process can be omitted, and the rolling efficiency and rolling quality can be improved at the same time.

[0025] In one embodiment, the inner mold assembly 2 further includes a wedge block 23 movably connected to the connecting sleeve 21. The wedge block 23 is positioned and supported between the two slip rings 22 and is used to limit the slip rings 22 relative to the connecting sleeve 21. In this embodiment, the wedge block 23 has a structure that is wider at the outer end and narrower at the inner end. After the two slip rings 22 are adjusted to a designated position relative to the connecting sleeve 21, the two ends of the wedge block 23 can be moved to support the two slip rings 22 respectively, preventing the two slip rings 22 from moving relative to the connecting sleeve 21 under the pressure of the sheet material to be processed. In this embodiment, by setting the wedge block 23 between the two slip rings 22 for support, the stability of the inner mold assembly 2 can be ensured.

[0026] It should be noted that the wedge block 23 is movably connected to the connecting sleeve 21 via the adjusting bolt 24, and the slip ring 22 is provided with a conical surface 221 that mates with the wedge block 23. One of the conical surface 221 and the wedge block 23 is provided with a limiting protrusion 222, and the other is provided with a limiting groove 231 that mates with the limiting protrusion 222. For example... Figure 2 and3 As shown, the conical surfaces 221 of the two slip rings 22 are arranged opposite each other, and the wedge block 23 is disposed between the two slip rings 22. The adjusting bolt 24 extends and retracts relative to the wedge block 23, which can adjust the internal depth of the wedge block 23 relative to the two slip rings 22. The cross-section of the limiting protrusion 222 is rectangular, and the shape of the limiting groove 231 matches the shape of the limiting protrusion 222. The number of limiting protrusions 222 can be set according to actual usage requirements. The number of limiting grooves 231 and limiting protrusions 222 are the same and they are arranged one-to-one. When the wedge block 23 moves radially along the slip ring 22, the limiting protrusion 222 and the limiting groove 231 slide in contact. The limiting protrusion 222 can extend radially along the slip ring 22, which can accurately guide the movement of the wedge block 23 and avoid the wedge block 23's movement trajectory from deviating, which would cause the wedge block 23 to fail to accurately limit the two slip rings 22.

[0027] like Figures 1 to 3 As shown, there are at least two wedge blocks 23, which are arranged radially spaced along the slip ring 22. In this embodiment, there are three wedge blocks 23, which are arranged circumferentially between the two slip rings 22 along the connecting sleeve 21. In other embodiments, the number of wedge blocks 23 can be set according to actual usage requirements. By cooperating with multiple wedge blocks 23, the slip ring 22 can be further prevented from shifting relative to the connecting sleeve 21 during use. Each wedge block 23 can be connected to the connecting sleeve 21 by adjusting bolts 24.

[0028] In one embodiment, one of the connecting sleeve 21 and the slip ring 22 is provided with a slide rail 211 extending along the roller axis, and the other is provided with a guide groove 223 that slides and engages with the slide rail 211. Figure 4 As shown, a slide rail 211 is provided on the outer surface of the connecting sleeve 21. The slide rail 211 has a rectangular cross-section. The guide groove 223 is adapted to the shape of the slide rail 211. The slide rail 211 extends along the axial direction of the connecting sleeve 21. The guide groove 223 is provided on the inner ring surface of the slip ring 22 and passes through the slip ring 22 along the axial direction of the slip ring 22. In this embodiment, there are four slide rails 211, which are evenly spaced along the circumference of the connecting sleeve 21. The number of guide grooves 223 is the same as that of the slide rails 211, and they are arranged in a one-to-one correspondence. Through the cooperation of the slide rails 211 and the guide grooves 223, the slip ring 22 can slide relative to the connecting sleeve 21, and the rotation of the slip ring 22 relative to the connecting sleeve 21 can be avoided. This facilitates the adjustment of the overall width of the inner mold assembly 2 and ensures the stability of the inner mold assembly 2 in use. In other embodiments, the number of slide rails 211 can be set according to actual usage requirements.

[0029] It should be noted that the inner mold assembly 2 also includes an elastic limiting member 25, with each end of the elastic limiting member 25 connected to one of the two slip rings 22. In this embodiment, the elastic limiting member 25 can be a spring, and each end of the elastic limiting member 25 can be connected to the conical surface 221 of the two slip rings 22. By limiting the movement of the elastic limiting member 25, the relative separation between the two slip rings 22 can be avoided, ensuring that the two slip rings 22 can be used in pairs, and facilitating the installation of the slip rings 22.

[0030] In one embodiment, such as Figure 5 As shown, the outer mold 1 includes two detachably connected semi-rings 11; and the inner side of the outer mold 1 is provided with an anti-slip surface that cooperates with the pressure roller 320, the anti-slip surface can completely cover the inner ring surface of the semi-rings 11. In this embodiment, the anti-slip surface can be knurled to increase the friction between the two semi-rings 11 and the pressure roller 320, preventing the outer mold 1 from rotating relative to the pressure roller 320, resulting in a large clamping force and preventing slippage. In other embodiments, the outer mold 1 may include multiple split blocks, and any two adjacent split blocks can be detachably connected. By using multiple split blocks, the outer mold 1 can be easily disassembled and assembled on the pressure roller 320. The number of split blocks can be set according to actual usage requirements.

[0031] Specifically, the two semi-rings 11 are detachably connected by a threaded connector. One semi-ring 11 is provided with a smooth hole 111, and the other semi-ring 11 is provided with a threaded hole 112. The threaded connector in this embodiment can be a screw or bolt in the prior art. The fact that one of the two semi-rings 11 is provided with a threaded hole 112 and the other with a smooth hole 111 facilitates the assembly and disassembly of the semi-rings 11.

[0032] In one embodiment, the outer wall of the semi-ring 11 is provided with a receiving groove 113 that is radially recessed along the semi-ring 11. The receiving groove 113 is used to receive threaded connectors. In this embodiment, the receiving groove 113 is close to the mating point between the two semi-rings 11, and the receiving groove 113 is semi-waist-shaped. A smooth hole 111 or a threaded hole 112 is provided on the bottom wall of the receiving groove 113. By using the method of grooving the side of the semi-ring 11, it is convenient to open the smooth hole 111 and the threaded hole 112, and at the same time, it is convenient to install and disassemble the threaded connectors. The entire side of the receiving groove 113 is open.

[0033] This utility model also proposes a plate rolling machine 300, which includes a base 310, a pressure roller 320 mounted on the base 310, and a rolling die 100 as described above. The specific structure of the rolling die 100 is as described in the above embodiments, and it can be adapted to workpieces with different numbers of side plates by adjusting the number of inner die components 2. Since the plate rolling machine 300 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0034] In one embodiment, the pressure roller 320 includes an upper roller 320a and two side rollers 320b located below the upper roller 320a. The two side rollers 320b are arranged sequentially along the length direction of the plate to be processed. The rolling die 100 is installed on the upper roller 320a. The plate rolling machine 300 can be a three-roll plate rolling machine 300, in which one pressure roller 320 is located at the top, i.e., the upper roller 320a, and the other two pressure rollers 320b are located below the top pressure roller 320 and are respectively arranged on both sides of the top pressure roller 320, i.e., the side rollers 320b. The axis connecting the three pressure rollers 320 forms a triangular structure. Based on the principle of three points forming a circle, the curvature of the U-shaped workpiece 200 can be controlled by adjusting the position of the two side rollers 320b located on the side (e.g., moving them up and down).

[0035] The rolling die 100 can be fitted onto the top upper roller 320a. An existing reversing device can be installed on the base 310. After the sheet metal to be processed is cut and bent into a straight section, it is ready for use. Lowering the reversing device of the rolling machine 300 allows for easy fitting of the inner die assembly 2 and the outer die 1 onto the top upper roller 320a. After the U-shaped workpiece 200 is rolled, since the rolling die 100 and the upper roller 320a are detachably connected, the rolling die 100 can be disassembled, restoring the original function of the rolling machine 300. Processing of U-shaped workpieces 200 of different sizes can be achieved without modifying the main structure of the rolling machine 300, resulting in lower costs.

[0036] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0039] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A rolling die (100) for a plate rolling machine (300) for processing U-shaped workpieces (200), characterized in that, The rolling die (100) includes: Two outer molds (1) are fitted onto the pressure rollers (320) of the plate rolling machine (300). The inner mold assembly (2) is sleeved on the pressure roller (320) and located between the two outer molds (1) along the roller axis direction of the pressure roller (320). A clamping gap is formed between the inner mold assembly (2) and the outer mold (1) for the plate to be processed to extend into. The inner mold assembly (2) includes a connecting sleeve (21) and two slip rings (22) respectively sleeved on both ends of the connecting sleeve (21). The slip rings (22) can move relative to the connecting sleeve (21) to adapt to the U-shaped workpiece (200) with different width base plates.

2. The rolling die according to claim 1, characterized in that, The inner mold assembly (2) also includes a wedge block (23) movably connected to the connecting sleeve (21). The wedge block (23) is limited and supported between the two slip rings (22) and is used to limit the slip rings (22) relative to the connecting sleeve (21).

3. The rolling die according to claim 2, characterized in that, The wedge block (23) is movably connected to the connecting sleeve (21) via the adjusting bolt (24). The slip ring (22) is provided with a conical surface (221) that mates with the wedge block (23). One of the conical surface (221) and the wedge block (23) is provided with a limiting protrusion (222), and the other is provided with a limiting groove (231) that mates with the limiting protrusion (222).

4. The rolling die according to claim 2, characterized in that, The number of the wedge blocks (23) is at least two, and the at least two wedge blocks (23) are arranged at radial intervals along the slip ring (22).

5. The rolling die according to any one of claims 1 to 4, characterized in that, One of the connecting sleeve (21) and the slip ring (22) is provided with a slide rail (211) extending along the direction of the roller shaft, and the other is provided with a guide groove (223) that slides and engages with the slide rail (211). And / or, The inner mold assembly (2) also includes an elastic limiting member (25), and the two ends of the elastic limiting member (25) are respectively connected to the two slip rings (22); And / or, The inner side of the outer mold (1) is provided with an anti-slip surface that cooperates with the pressure roller (320).

6. The rolling die according to any one of claims 1 to 4, characterized in that, The outer mold (1) includes two detachably connected semi-rings (11).

7. The rolling die according to claim 6, characterized in that, The two half-rings (11) are detachably connected by a threaded connector, one of the half-rings (11) is provided with a light hole (111) and the other half-ring (11) is provided with a thread hole (112).

8. The rolling die according to claim 7, characterized in that, The outer side wall of the semi-ring (11) is provided with a receiving groove (113) with an open side, the receiving groove (113) being used to receive the threaded connector.

9. A plate rolling machine (300), characterized in that, The plate rolling machine (300) includes a base (310), a pressure roller (320) mounted on the base (310), and a rolling die (100) as described in any one of claims 1 to 8.

10. The plate rolling machine according to claim 9, characterized in that, The pressure roller (320) includes an upper roller (320a) and two side rollers (320b) located below the upper roller (320a). The two side rollers (320b) are arranged sequentially along the length direction of the sheet material to be processed. The rolling die (100) is installed on the upper roller (320a).

Images