Multifunctional die pressing device

Abstract

The multifunctional die pressing device comprises a die pressing main body, a die pressing platform and a pressure applying piece, a die pressing cavity is formed in the die pressing main body, a feeding hole and a discharging hole which are communicated with the die pressing cavity are formed in the die pressing main body, the die pressing platform is connected with the die pressing main body, the die pressing platform is located in the die pressing cavity, and the pressure applying piece is arranged on the die pressing platform. The pressing die platform, the feeding hole and the discharging hole are flush in the horizontal direction, so that a to-be-bent material sequentially penetrates through the feeding hole and the discharging hole, the to-be-bent part of the material is placed on the pressing die platform, and the pressure applying piece is connected with the pressing die body and used for applying pressure to the to-be-bent part of the material. According to the multifunctional die pressing device, the to-be-bent part of the material is placed in the die pressing cavity, the die pressing platform supports the material, the material is stabilized through the feeding hole and the discharging hole in the material bending process, and therefore the material bending effect and the safety in the operation process are improved.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine support, in particular to a multifunctional pressing die device. Background Art

[0002] With the rapid development of coal mining, mine safety has become a vital issue. In the process of mine production, the stability and safety of the tunnel are directly related to the production efficiency of the mine and the safety of the operators. However, in actual production, mine tunnels often face many problems, such as stress concentration and compression deformation of the tunnel caused by soft coal and rock. These problems seriously affect the ventilation effect of the mine and even threaten the safety of the operators.

[0003] In order to solve the above problems, the related technology usually adopts "U"-shaped steel beams for tunnel support. This kind of steel beam has the advantages of high strength and strong bearing capacity, and can effectively improve the stability of the tunnel. However, in the actual application process, when the "U"-shaped steel beam is made into a semicircular support beam, there are the following technical difficulties:

[0004] The "U" 29 steel beam is strong and not easy to bend when making support beams. Due to the high strength of the steel beam itself, it is difficult to achieve the ideal curvature during the bending process, resulting in poor forming effect after tunnel support.

[0005] The curvature is different during bending. Since the curvature of the "U" 29 steel beam is difficult to control during the bending process, it is easy to cause uneven shaping after the tunnel support, affecting the overall stability of the tunnel.

[0006] The steel beam cannot be fixed during bending and is prone to shaking. Since the "U" 29 steel beam cannot be effectively fixed during the bending process and is prone to shaking, this not only affects the bending quality, but may also injure the operators and increase the safety risk of operation. Summary of the invention

[0007] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0008] To this end, an embodiment of the present invention proposes a multifunctional die pressing device for bending the "U" 29 steel beam of a semi-circular arch tunnel to achieve the goal of efficiently, safely and stably supporting the tunnel.

[0009] The multifunctional die pressing device of the embodiment of the present invention comprises:

[0010] A die body, wherein the die body has a die cavity, and the die body is provided with a feed hole and a discharge hole connected to the die cavity;

[0011] A die platform, the die platform is connected to the die body, the die platform is located in the die cavity, the die platform, the feed hole and the discharge hole are aligned in the horizontal direction, so that the material to be bent passes through the feed hole and the discharge hole in sequence, and the part of the material to be bent is placed on the die platform;

[0012] A pressure piece is connected to the die body and is used to apply pressure to the part of the material to be bent.

[0013] The multifunctional die pressing device of the embodiment of the present invention places the part of the material to be bent in the die pressing cavity. The die pressing platform provides support for the material and utilizes the feed hole and the discharge hole to stabilize the material during the bending process, thereby improving the bending effect of the material and the safety of the operation process.

[0014] In some embodiments, the die body includes multiple I-beams connected in sequence to form a ring-shaped die body, the cavity surrounded by the multiple I-beams is the die cavity, and the feed hole and the discharge hole are respectively arranged on two oppositely arranged I-beams.

[0015] In some embodiments, the die body further comprises a cover shell, wherein the cover shell is detachably connected to the I-beam, and the cover shell is used to cover the upper opening of the die cavity.

[0016] In some embodiments, at least one of the feed hole and the discharge hole is provided with an upward opening on the corresponding I-beam, and a sealing plate is detachably provided at the opening.

[0017] In some embodiments, a limiter is provided in both the feed hole and the discharge hole. The limiter is movable along the radial direction of the hole. The moving direction of the limiter is parallel to the direction in which the pressure is applied by the pressure member. The limiter is used to limit the deflection range of the material in the hole.

[0018] In some embodiments, the pressure member includes a hydraulic jack and a base, the hydraulic jack is connected to the base, the base is movably connected to the die body, and the moving direction of the base is perpendicular to the direction in which the hydraulic jack applies pressure.

[0019] In some embodiments, a first guide rail is provided on the die body, the extension direction of the first guide rail is perpendicular to the direction in which the pressure is applied by the hydraulic jack, and the die platform is provided on the first guide rail.

[0020] In some embodiments, a second guide rail is further provided on the die body, the extension direction of the second guide rail is parallel to the direction in which the hydraulic jack applies pressure, and the first guide rail is provided on the second guide rail.

[0021] In some embodiments, auxiliary brackets are provided on the outer sides of the feed hole and the discharge hole, and the auxiliary brackets have a sliding portion so that the material to be bent is placed on the sliding portion.

[0022] In some embodiments, the sliding portion includes a plurality of rollers arranged at intervals. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 1. It is a top view of the multifunctional die pressing device according to an embodiment of the present invention.

[0024] Reference numerals:

[0025] 1-die body, 101-die cavity, 102-feed hole, 103-discharge hole, 2-die platform, 3-pressure piece, 301-hydraulic jack, 302-base, 4-limiting piece, 5-first guide rail, 6-second guide rail, 7-auxiliary bracket, 8-material. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0027] The multifunctional die pressing device according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0028] like Figure 1 As shown, the multifunctional die pressing device according to the embodiment of the present invention comprises: a die pressing body 1 , a die pressing platform 2 and a pressure applying member 3 .

[0029] The die body 1 has a die cavity 101, and the die body 1 is provided with a feed hole 102 and a discharge hole 103 connected to the die cavity 101. The die platform 2 is connected to the die body 1, and the die platform 2 is located in the die cavity 101. The die platform 2, the feed hole 102 and the discharge hole 103 are aligned in the horizontal direction. The material 8 to be bent passes through the feed hole 102 and the discharge hole 103 in sequence, and the part of the material 8 to be bent is placed on the die platform 2. The pressure piece 3 is connected to the die body 1, and the pressure piece 3 is used to apply pressure to the part of the material 8 to be bent.

[0030] It is understandable that the material 8 is, for example, a "U"-shaped steel. The material 8 is passed through the feed hole 102 and the discharge hole 103 in sequence, the portion of the material 8 to be bent is placed on the die platform 2, and the pressure member 3 is started to perform a bending operation on the material 8. During the processing of the material 8, the material 8 is initially in a straight state. When the pressure member 3 applies pressure to the material 8, the material 8 moves to be close to the hole wall, and then the hole wall applies a reverse force to the material 8, and the material 8 begins to bend and deform under the action of the pressure member 3.

[0031] Thus, the multifunctional die pressing device of the embodiment of the present invention places the part of the material 8 to be bent in the die pressing cavity 101, and the force-bearing part of the material 8 is controlled in the die pressing cavity 101, effectively reducing the probability of injury during the bending operation of the material 8. The die pressing platform 2 provides support for the material 8, and uses the feed hole 102 and the discharge hole 103 to stabilize the material 8 during the bending process of the material 8, thereby improving the bending effect of the material 8 and the safety of the operation process.

[0032] In some embodiments, Figure 1 As shown, the die body 1 comprises a plurality of I-beams connected in sequence to form a ring-shaped die body 1. The cavity surrounded by the center of the plurality of I-beams is the die cavity 101, and the feed hole 102 and the discharge hole 103 are respectively arranged on two oppositely arranged I-beams.

[0033] Optionally, the I-beam is made of No. 11 mining steel with high strength, and the die body 1 is horizontally fixed on the base plane (ground), and the overall structure is strong and stable.

[0034] Furthermore, the die body 1 also includes a cover shell (not shown in the figure), which is detachably connected to the I-beam by bolts. The cover shell is used to cover the upper opening of the die cavity 101, so that the operation of bending the material 8 is carried out in a closed environment, thereby improving the operation safety.

[0035] In some embodiments, at least one of the feed hole 102 and the discharge hole 103 is provided with an upward opening on the corresponding I-beam, and a sealing plate is detachably provided at the opening.

[0036] It should be noted that the bent material 8 is not easy to be pulled out from the hole compared to the material 8 before being bent. Therefore, the hole is designed as an open structure, and when the material 8 is bent, the opening is closed with a sealing plate. After the bending operation is completed, the sealing plate is opened so that the material 8 can be taken out of the hole in a vertical direction, thereby improving convenience.

[0037] Optionally, a notch is cut above the opening of the I-beam, i.e., the above-mentioned opening, and a reversible cover plate is installed at the opening, for example, one end of the cover plate is connected to the steel material by a hinge structure. Then, the other end of the cover plate is fixed to the steel material by bolts. After the material 8 is bent, the bolts between the two are removed, the cover plate is opened, and the material 8 is taken out of the hole.

[0038] In some embodiments, Figure 1As shown, a limiter 4 is provided in both the feed hole 102 and the discharge hole 103. The limiter 4 is movable along the radial direction of the hole. The moving direction of the limiter 4 is parallel to the direction in which the pressure is applied by the pressure member 3. The limiter 4 is used to limit the deflection range of the material 8 in the hole.

[0039] It is understandable that during the bending process of the material 8, the portion of the material 8 located in the hole will deflect in the direction opposite to the applied pressure. The deflection range of the material 8 in the hole is limited by the stopper 4, so that the bending degree of the material 8 can be limited.

[0040] Thus, when bending multiple materials 8, the position of the stopper 4 can be adjusted to adjust the different bending conditions of the materials 8. Alternatively, the stopper 4 is always in a preset position to ensure that the bending degrees of multiple materials 8 are consistent, thereby improving the flexibility of the device.

[0041] In some embodiments, Figure 1 As shown, the pressure member 3 includes a hydraulic jack 301 and a base 302 , the hydraulic jack 301 is connected to the base 302 , the base 302 is movably connected to the die body 1 , and the moving direction of the base 302 is perpendicular to the direction in which the hydraulic jack 301 applies pressure.

[0042] Among them, the hydraulic jack 301 is connected to an external oil pressure system. The hydraulic jack 301 is a large diameter jack with a large power and can provide sufficient pressure when bending. In addition, the hydraulic jack 301 is driven by an oil pressure pump. The oil pressure can output a large thrust. The oil pressure transmission can make the movement of the actuator uniform and stable, and can make the moving parts have no reversing shock when reversing. It can achieve stepless speed regulation with an operating valve group, has a fast response speed, and can achieve frequent reversing.

[0043] It is understandable that the base 302 adopts a movable structure, so that the fulcrum point can be freely adjusted when the material 8 is bent, and can be freely adjusted according to the different bending effects required by the material 8, thereby further improving the flexibility of the device and ensuring that the material 8 is bent to an ideal curvature.

[0044] Optionally, the base 302 is driven by a screw rod, and the base 302 is moved smoothly on the die body 1 by rotating the screw rod.

[0045] In some embodiments, Figure 1 As shown, the die body 1 is provided with a first guide rail 5, the extension direction of the first guide rail 5 is perpendicular to the direction in which the hydraulic jack 301 applies pressure, and the die platform 2 is provided on the first guide rail 5. By adjusting the position of the die platform 2, it is ensured that the part of the material 8 to be bent is always on the die platform 2.

[0046] In addition, the die body 1 is provided with a second guide rail 6, the extension direction of the second guide rail 6 is parallel to the direction in which the hydraulic jack 301 applies pressure, and the first guide rail 5 is provided on the second guide rail 6. During the bending process, the material 8 will move relative to the platform, and in order to prevent the material 8 from running out of the support range of the platform, the die platform 2 is moved together with the material 8 to ensure that the material 8 is always on the die platform 2, thereby improving the reliability of the bending operation.

[0047] Optionally, a monitoring element is provided on the die platform 2 to monitor the position of the material 8 on the die platform 2 in real time. The first guide rail 5 and the second guide rail 6 are electrically controlled guide rails, and the data monitored by the monitoring element is transmitted to the host computer, which controls the operation of the first guide rail 5 and the second guide rail 6 to adjust the position of the die platform 2 in time.

[0048] In some embodiments, Figure 1 As shown, auxiliary brackets 7 are provided on the outside of the feed hole 102 and the discharge hole 103. The auxiliary brackets 7 have a sliding portion, so that the material 8 to be bent is placed on the sliding portion. Preferably, the sliding portion includes a plurality of rollers arranged at intervals.

[0049] Furthermore, there are multiple auxiliary brackets 7 on each side, which can effectively support materials 8 of different lengths.

[0050] It is understandable that, when the material 8 is moving (for example, when the material 8 passes through the feed hole 102 and the discharge hole 103, or when the material 8 is bending), the rollers of the auxiliary bracket 7 can reduce the resistance to the movement of the material 8.

[0051] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0055] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0056] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A multifunctional die pressing device, characterized in that: include: A die body, wherein the die body has a die cavity, and the die body is provided with a feed hole and a discharge hole connected to the die cavity; A die platform, the die platform is connected to the die body, the die platform is located in the die cavity, the die platform, the feed hole and the discharge hole are aligned in the horizontal direction, so that the material to be bent passes through the feed hole and the discharge hole in sequence, and the part of the material to be bent is placed on the die platform; A pressure piece is connected to the die body and is used to apply pressure to the portion of the material to be bent.

2. The multifunctional die pressing device according to claim 1, characterized in that: The die body includes a plurality of I-beams connected in sequence to form a ring-shaped die body. The cavity surrounded by the plurality of I-beams is the die cavity. The feed hole and the discharge hole are respectively arranged on two oppositely arranged I-beams.

3. The multifunctional die pressing device according to claim 2, characterized in that: The die body also includes a cover shell, which is detachably connected to the I-beam and is used to cover the upper opening of the die cavity.

4. The multifunctional die pressing device according to claim 2, characterized in that: At least one of the feed hole and the discharge hole is provided with an upward opening on the corresponding I-beam, and a sealing plate is detachably provided at the opening.

5. The multifunctional die pressing device according to claim 1, characterized in that: A limiter is provided in each of the feed hole and the discharge hole. The limiter is movable along the radial direction of the hole. The moving direction of the limiter is parallel to the direction in which the pressure is applied by the pressure member. The limiter is used to limit the deflection range of the material in the hole.

6. The multifunctional die pressing device according to claim 1, characterized in that: The pressure-applying member comprises a hydraulic jack and a base, wherein the hydraulic jack is connected to the base, and the base is movably connected to the die body, and the moving direction of the base is perpendicular to the direction in which the hydraulic jack applies pressure.

7. The multifunctional die pressing device according to claim 6, characterized in that: The die body is provided with a first guide rail, the extension direction of the first guide rail is perpendicular to the direction in which the hydraulic jack applies pressure, and the die platform is arranged on the first guide rail.

8. The multifunctional die pressing device according to claim 7, characterized in that: The die body is also provided with a second guide rail, the extension direction of the second guide rail is parallel to the direction in which the hydraulic jack applies pressure, and the first guide rail is arranged on the second guide rail.

9. The multifunctional die pressing device according to claim 1, characterized in that: Auxiliary brackets are arranged on the outer sides of the material feeding hole and the material discharging hole. The auxiliary brackets have sliding parts so that the materials to be bent are placed on the sliding parts.

10. The multifunctional die pressing device according to claim 9, characterized in that: The sliding portion includes a plurality of rollers arranged at intervals.

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